Some standard content:
HLS 73.100.40
Machinery Industry Standard of the People's Republic of China
JB/T10347-2002
Friction hoist
Friction lining
Lining for friction hoist
Published on July 16, 2002
Implemented on December 1, 2002
Published by the State Economic and Trade Commission of the People's Republic of China Foreword
Normative documents
3 Product classification
Technical requirements
Test force method
5.1 Friction coefficient test,
Abrasion test
5.3 Hard filter determination|| tt||6 Inspection plan
Inspection, packaging, storage
Figure 1 Single rope inspection pad
2 Double rope inspection room
Table 1 Single rope inspection pad and size
Table 2 Instrument rope size,
.IB/T10347-2002
M/T10347-2002
This standard is proposed by China Machinery Industry Federation! ! : Foreword
This standard is proposed by the National Association of Standardization Technical Committee of Machinery Industry (SACTC8). This standard is drafted by: Luyang Mashan Mechanical Engineering Design Institute, this standard is drafted by: Che Liangzhou, Zhang Chuxin, Sui Hongge, Zhang Bucheng, Liu Jianping, Min Yunling, Huo Yuling: 1 Specification
Friction type hoist friction pad
J0/T10347-2002
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of friction type hoists
This standard is applicable to the friction type hoist friction pad. The pad is used for the transmission between the friction type hoist wheel and the wire rope. It is also suitable for other similar power transmission. 2 Normative references
The following documents are cited as the standard terms. The dated reference documents are those with all subsequent amendments (excluding errors or revisions): All subsequent amendments shall not apply to the standard. However, the latest versions of these documents may be used when the agreement on the points in this standard is reached. The dated reference documents are those with all subsequent amendments (excluding errors or revisions): All subsequent amendments shall not apply to the standard. However, the latest versions of these documents may be used when the agreement on the points in this standard is reached. The dated reference documents are those with all subsequent amendments: GBT 2411 Test method for strength of elastic material (eqV1S0868:1978 GBT 13384 General technical conditions for installation of electrical products 3 Product classification || tt || 3.1 The connection potential is divided into single rope There are two types of groove bars. 32 The shape of the single rope friction pad should be consistent with the size 1, and the size and tolerance (see Figure 1) should be consistent with the requirements of Table 1. The shape of the double rope friction pad should be consistent with the requirements of Table 3, and the size and tolerance (see Figure 2) should be consistent with the requirements of Table 2. The size in the figure will be: D, which should be consistent with the outer diameter of the lifting wheel shell: The manufacturer and the user will determine the height as the reference size. Based on D, it is calculated.
Single rope friction pad
Applicable to the nominal upper diameter of the wire rope
14~-1#
16 --28
24~:40
36--55
Figure 2 Double-grade friction village salt
Single-grade Kang friction village pad size
Unit:
JB/T10347—2002
Yunyu key wire reserve diameter
15~·26
36--56
Table 2 Double-grade Kang Nan friction pad size
Single: m
52 - 71
3.3 The marking of the joint is composed of product name, specification and product standard number. The product specification shall include the width, m and the nominal diameter D of the applicable lift: single rope can be marked without rope towing number, marking method is as follows: single rope a/m×DJB/T10347-2002
1: original value (rum, suitable for single rope towing pads with a diameter of 2.8m or lifts marked as, friction pad 81)X28[KJB/]0347-2002 example 2. Item is 130rara, suitable for double rope towing pads with a diameter of 2.m friction lifts marked as: traction pad 130/2×2800B/T1034720024 Technical requirements
4.1 The allowable value of friction coefficient shall be lower than that of the use The required contact coefficient value of the lifting system of the lining should not be lower than 0.20. 4.2 The friction coefficient should be able to remain stable or increase with the relative drop or speed of the friction pad and the wire rope, so as to ensure the sliding speed when there is an abnormal movement caused by external factors. 4.3 The friction pad should have good thermal conductivity. Under normal working conditions, it should not melt when the surface temperature of the friction pad increases due to unexpected non-positive movement. 4.4 The friction pad should be able to withstand a working pressure of not less than 3.0MP4: 4.5 The hardness at 20℃ should be <40--70) Hm> 4.6 The wear rate of the friction pad should not exceed 7.0×10~cmkN·m. 4.7 The internal structure of the friction pad should be uniform, and there should be no defects such as pores, fire potential and fire layer. 4.8 The friction pad material shall be oil-resistant and water-resistant, and shall not decompose or change in properties after long-term contact with grease and water. 4.9 The material shall not contain substances that pollute the environment, harm human health, or damage the wire rope. 4.10 The friction pad material shall have good cutting performance. 4.11 The friction pad material shall not be flammable or non-flammable. 5 Test methods 5.1 Friction coefficient test 5.1.1 Test method The friction coefficient test adopts the simulation test method. 5.12 Test principle
Use two alternate rate pads to test, connect the specified force to hold the test wire rope according to the corresponding specifications of the diameter of the wire rope, and start the machine to raise the maximum static tension of a single rope: Let the friction rate overload and the wire rope produce relative movement, measure the force and the climbing force generated during movement, and calculate the friction rate friction pad coefficient according to the formula: +
Where:
—Friction coefficient of general friction pad
Friction generated when the friction pad and the wire rope are in relative motion. Unit: N: F
The positive pressure of the friction pad clamping the wire rope, unit: N. 5.1.3 Test equipment
Special simulation test machine for friction pad.
5.1.4 Test Parts
5.1.4.1 Surface Condition
The surface conditions of friction pads and wire ropes are divided into the following three types: a) There is no water, grease or other impurities on the surface of carbon lining and wire rope, and the wire rope is free of rust. b) Water spraying: There is water on the surface of lining and wire rope, but no grease or other impurities, and the wire rope is free of rust. JR/T10347—2002
c) Friction coating: Friction and heat grease with a rate of not less than LZM on the surface of wire rope is applied, but no water and other impurities, and the wire rope is free of rust.
During the test, the surface conditions of friction pads and wire ropes shall be selected according to the requirements. 5.1.4.2 Pressure
The average stress on the unit projection of the lining rope shall be 2.3MPu. 5.1.4.3 Sliding speed
The sliding speed between the friction pad and the wire rope should be 1um/s 5.1.4.4 The ambient temperature during the test should be within the range of 25℃±5℃. 5.1.5 Preparation of friction pad samples
Two samples of the same batch in one pair of samples: The sample is a rectangular parallelepiped, and the sample dimensions are:
The length should not be less than 4 times the diameter of the test steel rope: The width should not be less than 2 times the diameter of the test wire rope, and the thickness should not be less than 1.5 times the diameter of the test wire rope. The rope chain should be set on the surface composed of length and width, along the length of the sample. The radius of the test rope should be the same as the radius of the test wire rope: The depth should be set to ensure that the test sample does not touch during the test. 5.1.6 Wire thickness for test The wire rope for test by TT method shall be a straight strand or a straight strand. The effective test length of the wire rope shall be less than 4 times the length of the friction test specimen. 5.1.7 Test procedure a) Friction test specimen, reduction test wire and friction distance, etc. The wire rope for test shall be subjected to a tension of more than 2° at the test temperature. The tension shall be the same as the tension parameter corresponding to its diameter. Before the test of the rope with high static tension:
clean state, the surface of the wire rope should be cleaned with high-efficiency chemical degreasing agent: and the surface should be cleaned with high-efficiency chemical degreasing agent; c
before the water spray state test, the friction pad should be immersed in water for more than 16 hours, and the test should also be sprayed with water on the friction pad and the wire rope. d)
the parts that are mutually fused:
before the friction grease state test, the friction pad groove and the silver wire surface should be evenly coated with friction grease to improve the effect of the friction rope!
The surface has just been covered with grease: the wire rope strands and the gaps between the strands and the wires will be filled, but the wire strands can still be felt. Scrape off the excess and place in a ventilated place for a quiet time. Before the formal test, a complete test run should be carried out under the test requirements: the test components of different surface conditions should be carried out separately, and the test should be carried out in sequence according to the order of cleaning, watering and grease application: g
The test of each surface condition should be carried out successively, and each test should be a light test: h!t
After the test, the surface temperature of the wire rope should be measured: the same formula, the same material pad will be a pick. 3
JB/T 10347—20D2
) For the coating sensitization test, when the environment temperature is high, the number of tests shall be appropriately increased to make the temperature reach 0°C; record the complete test data.
5.1.8 Arrangement of test data
) Substitute all the sensitivities obtained from the test into the formula (), calculate the test value of the coefficient of the test data, and draw a reduction line: b) Eliminate the abnormal data:
) Process the test data according to different surface conditions. 5.1.9 Determination of test results
a) Select the data with the lowest value in the surface condition test data as the basis for determining the test results) Use formulas! and 3? to calculate the average value and standard deviation of the selected data of each type of makeup state. ke
Select the average value of the friction coefficient test value
Select the number of friction coefficient test values;
"Standard deviation of the friction coefficient test value
Calculate the main distribution range of the test data of various states according to the average value and the standard deviation. This range is the test result. The calculation result needs to be rounded off to the last two digits of the effective point. Determination of the allowable value of friction coefficient
Select the number of tests in the state with the lowest data value. b) For the coating rate absorption state test, the test data when the rope temperature reaches 30°C should be selected as the basis for determining the specific use: 3
Find the formula: 2) and (3) Let the average value and standard gain of the selected data be calculated, according to the formula! 4) Let the allowable position of the environmental coefficient of the effective test friction absorption potential be calculated,
Wu Feng:
allowable reverse connection coefficient value,
d) The allowable value of the number of storage decay bars is replaced by the decimal point method, and the position after the decimal point is 5.2 Deer damage test
5.2 .1 Test method
The iodine test method is used for the test.
5.2.2 Test equipment
1) Test machine for rubbing the center of gravity:
Standard balance, with a graduation value of more than 101g.
5.2.3 Test principle
Use the same rate of the secondary cabinet to test the wire rope at the specified force. The wire rope is rotated and the diameter is proportional to the maximum static tension of the hoist single rope. The pad and the wire rope slide relative to each other at a specified speed. Distance. Monitor the volumetric wear of the friction lining lift specimen and the wall force during sliding. The sliding distance needs to be converted into an equivalent lifting stroke. The unit friction dynamic factor is the volumetric wear of the lining. The wear rate of the pad with the highest degree of friction is obtained. 5.2.4 Test conditions
! The surface of the pad should be in a clean state. b) The average pressure flow per unit projected area of the rope during instantaneous shock is 2.0MPa) The relative sliding speed between the friction potential and the sealing wire rope is calculated according to the formula "5: Approximate calculation: V-AT%1O
Wu Zhong: ||tt ||Relative sliding speed between the test wire rope and the steel warp rope, unit is mnJB/T10347-2002
The maximum force difference of the same standard parameter hoist corresponding to the oxygen straightness of the test wire rope, unit is: V.-The maximum lifting connection of the hoist with the same specification standard parameter corresponding to the test wire rope, unit is m/s:-Number of hoist hook wire ropes:
The elastic modulus of the steel wire rope, E=0.75×1MP~-.5×t05MPa: The effective The unit is mm. The sliding distance should be 100 mm:
The ambient temperature during the test should be within the range of 25℃ and 5℃. 5.2.5 Test procedure
Before the test, the test piece wire rope should be cleaned and thoroughly dried, and there should be no tears and other impurities: a
Seal the hot test sample and the test system at the test temperature for 2 hours: b
Before the test, complete a complete test stroke under the test hoop, then clean the wear debris on the test lining, and weigh the friction roller with a balance. The weight of the pad sample:
After the test, first eliminate the friction and pick up the weight of sample 1: Then use the weight of the friction sample to eliminate the friction. During the test, the temperature should be controlled not to exceed 60: During the test, measure the friction force
and record the effective friction number
. 5.2.6 Calculation of grip rate
: Calculate the grip rate by measuring the friction force of the sample, that is, the average difference between the single sample before and after the test b) Adjust the difference to the formula (6) to calculate the wear rate: aG
Friction loss rate, unit la~cm kN·m certificate
Station test Xiaozhan lift and moving wire rope company and sliding speed, control formula (5) calculation, single letter Ems: Seat seal loss of the test sample, unit is the density of the test wire rope diameter according to the same standard set of the maximum lifting of the lift, single goods: test time Huacun and wire rope simple distance, unit is plus: test relay value measured during the test, unit is kNc: wear rate measurement should be rounded off, accurate to the decimal point. 5.3 Hardness determination
The provisions of GB/24] are in force, 6 Inspection rules
6.1 The product wear resistance must be inspected and qualified by the manufacturer's quality inspection department before it can leave the factory. When it leaves the factory, there should be documents proving the quality of the product. 6.2 Manufacturing! 6.3 Each batch of rubber pads shall be tested for performance and size. If the test is unqualified, the rubber pads shall be removed immediately. 5
JB/T10347—2002
6.3 Each batch of rubber pads shall be tested for performance and size. The test results shall be as follows: Product quality coefficient:
Rising rate:
Hardness (HD)
6.4 If the performance test is unqualified, additional sampling shall be conducted to re-test the unqualified items. If the test is still unqualified, the batch shall be handled. 7 Marking, packaging, transportation and storage
7.1 The packaging items shall be marked with the manufacturer's name! 7.2 The packaging bag () should be marked with the manufacturer's name, manufacturer and factory name:
Product name and specifications:
…·Invoice and address:
Quantity:
Date
7.3 The packaging bag should be accompanied by the following technical documents:
Product quality certification documents:
Product quality inspection report:
Instructions for use
Product quality certification documents include the following contents:
Product name, specification, drawing number, batch number: - Product quantity:
- Inspector number and appropriate inspection department signature. The friction performance inspection report should include the following contents: Manufacturer name:
, Sealing pad tree number, specification and designation: Product implementation standard number
, Equipment model, wire rope specifications: Test conditions: including surface condition, temperature, etc., and test data: friction coefficient, increase and decrease of filter concentration and test results: Give the friction coefficient value of the parts: Inspection unit, inspection date, inspection date, inspector name and inspection unit. The manual should include the following contents:
, Technical parameters: including allowable shielding coefficient, induction rate, expansion coefficient, chemical point, etc.: Use conditions: including condition, pressure, temperature, etc.: Failure cases and failure identification methods:
, This case is attached, and the expired treatment method is attached. 7.4 The friction pad should be placed in a place that is away from wind and sunlight, and the conditions specified in its instruction manual should be observed.t
After the test is completed, the surface temperature of the wire rope shall be measured: for the same formula, the same friction pad shall be used as one test. 3
JB/T 10347-20D2
) For the test of the coating grease state, when the environment is high, the number of tests shall be appropriately increased to make the rope temperature reach 0°C; record the complete test data of the test.
5.1.8 Arrangement of test data
) Substitute all the test data into formula (), calculate the test value of the coefficient, and draw a reduction line: b) Eliminate the abnormal band data:
) Arrange the test data according to different surface states. 5.1.9 Determination of test results
a) Select the data with the lowest value in the surface state test data as the basis for determining the test results) Use formulas! and 3? to calculate the average value and standard deviation of the selected data of each state respectively. ke
Select the average value of the friction coefficient test value
Select the number of friction coefficient test values;
"Standard deviation of the friction coefficient test value
Calculate the main distribution range of the test data of various states according to the average value and the standard deviation. This range is the test result. The calculation result needs to be rounded off to the last two digits of the effective point. Determination of the allowable value of friction coefficient
Select the number of tests in the state with the lowest data value. b) For the coating rate absorption state test, the test data when the rope temperature reaches 30°C should be selected as the basis for determining the specific use: 3
Find the formula: 2) and (3) Let the average value and standard gain of the selected data be calculated, according to the formula! 4) Let the allowable position of the environmental coefficient of the effective test friction absorption potential be calculated,
Wu Feng:
allowable reverse connection coefficient value,
d) The allowable value of the number of storage decay bars is replaced by the decimal point method, and the position after the decimal point is 5.2 Deer damage test
5.2 .1 Test method
The iodine test method is used for the test.
5.2.2 Test equipment
1) Test machine for rubbing the center of gravity:
Standard balance, with a graduation value of more than 101g.
5.2.3 Test principle
Use the same rate of the secondary cabinet to test the wire rope at the specified force. The wire rope is rotated and the diameter is proportional to the maximum static tension of the hoist single rope. The pad and the wire rope slide relative to each other at a specified speed. Distance. Monitor the volumetric wear of the friction lining lift specimen and the wall force during sliding. The sliding distance needs to be converted into an equivalent lifting stroke. The unit friction dynamic factor is the volumetric wear of the lining. The wear rate of the pad with the highest degree of friction is obtained. 5.2.4 Test conditions
! The surface of the pad should be in a clean state. b) The average pressure flow per unit projected area of the rope during instantaneous shock is 2.0MPa) The relative sliding speed between the friction potential and the sealing wire rope is calculated according to the formula "5: Approximate calculation: V-AT%1O
Wu Zhong: ||tt ||Relative sliding speed between the test wire rope and the steel warp rope, unit is mnJB/T10347-2002
The maximum force difference of the same standard parameter hoist corresponding to the oxygen straightness of the test wire rope, unit is: V.-The maximum lifting connection of the hoist with the same specification standard parameter corresponding to the test wire rope, unit is m/s:-Number of hoist hook wire ropes:
The elastic modulus of the steel wire rope, E=0.75×1MP~-.5×t05MPa: The effective The unit is mm. The sliding distance should be 100 mm:
The ambient temperature during the test should be within the range of 25℃ and 5℃. 5.2.5 Test procedure
Before the test, the test piece wire rope should be cleaned and thoroughly dried, and there should be no tears and other impurities: a
Seal the hot test sample and the test system at the test temperature for 2 hours: b
Before the test, complete a complete test stroke under the test hoop, then clean the wear debris on the test lining, and weigh the friction roller with a balance. The weight of the pad sample:
After the test, first eliminate the friction and pick up the weight of sample 1: Then use the weight of the friction sample to eliminate the friction. During the test, the temperature should be controlled not to exceed 60: During the test, measure the friction force
and record the effective friction number
. 5.2.6 Calculation of grip rate
: Calculate the grip rate by measuring the friction force of the sample, that is, the average difference between the single sample before and after the test b) Adjust the difference to the formula (6) to calculate the wear rate: aG
Friction loss rate, unit la~cm kN·m certificate
Station test Xiaozhan lift and moving wire rope company and sliding speed, control formula (5) calculation, single letter Ems: Seat seal loss of the test sample, unit is the density of the test wire rope diameter according to the same standard set of the maximum lifting of the lift, single goods: test time Huacun and wire rope simple distance, unit is plus: test relay value measured during the test, unit is kNc: wear rate measurement should be rounded off, accurate to the decimal point. 5.3 Hardness determination
The provisions of GB/24] are in force, 6 Inspection rules
6.1 The product wear resistance must be inspected and qualified by the manufacturer's quality inspection department before it can leave the factory. When it leaves the factory, there should be documents proving the quality of the product. 6.2 Manufacturing! 6.3 Each batch of rubber pads shall be tested for performance and size. If the test is unqualified, the rubber pads shall be removed immediately. 5
JB/T10347—2002
6.3 Each batch of rubber pads shall be tested for performance and size. The test results shall be as follows: Product quality coefficient:
Rising rate:
Hardness (HD)
6.4 If the performance test is unqualified, additional sampling shall be conducted to re-test the unqualified items. If the test is still unqualified, the batch shall be handled. 7 Marking, packaging, transportation and storage
7.1 The packaging items shall be marked with the manufacturer's name! 7.2 The packaging bag () should be marked with the manufacturer's name, manufacturer and factory name:
Product name and specifications:
…·Invoice and address:
Quantity:
Date
7.3 The packaging bag should be accompanied by the following technical documents:
Product quality certification documents:
Product quality inspection report:
Instructions for use
Product quality certification documents include the following contents:
Product name, specification, drawing number, batch number: - Product quantity:
- Inspector number and appropriate inspection department signature. The friction performance inspection report should include the following contents: Manufacturer name:
, Sealing pad tree number, specification and designation: Product implementation standard number
, Equipment model, wire rope specifications: Test conditions: including surface condition, temperature, etc., and test data: friction coefficient, increase and decrease of filter concentration and test results: Give the friction coefficient value of the parts: Inspection unit, inspection date, inspection date, inspector name and inspection unit. The manual should include the following contents:
, Technical parameters: including allowable shielding coefficient, induction rate, expansion coefficient, chemical point, etc.: Use conditions: including condition, pressure, temperature, etc.: Failure cases and failure identification methods:
, This case is attached, and the expired treatment method is attached. 7.4 The friction pad should be placed in a place that is away from wind and sunlight, and the conditions specified in its instruction manual should be observed.t
After the test is completed, the surface temperature of the wire rope shall be measured: for the same formula, the same friction pad shall be used as one test. 3
JB/T 10347-20D2
) For the test of the coating grease state, when the environment is high, the number of tests shall be appropriately increased to make the rope temperature reach 0°C; record the complete test data of the test.
5.1.8 Arrangement of test data
) Substitute all the test data into formula (), calculate the test value of the coefficient, and draw a reduction line: b) Eliminate the abnormal band data:
) Arrange the test data according to different surface states. 5.1.9 Determination of test results
a) Select the data with the lowest value in the surface state test data as the basis for determining the test results) Use formulas! and 3? to calculate the average value and standard deviation of the selected data of each state respectively. ke
Select the average value of the friction coefficient test value
Select the number of friction coefficient test values;
"Standard deviation of the friction coefficient test value
Calculate the main distribution range of the test data of various states according to the average value and the standard deviation. This range is the test result. The calculation result needs to be rounded off to the last two digits of the effective point. Determination of the allowable value of friction coefficient
Select the number of tests in the state with the lowest data value. b) For the coating rate absorption state test, the test data when the rope temperature reaches 30°C should be selected as the basis for determining the specific use: 3
Find the formula: 2) and (3) Let the average value and standard gain of the selected data be calculated, according to the formula! 4) Let the allowable position of the environmental coefficient of the effective test friction absorption potential be calculated,
Wu Feng:
allowable reverse connection coefficient value,
d) The allowable value of the number of storage decay bars is replaced by the decimal point method, and the position after the decimal point is 5.2 Deer damage test
5.2 .1 Test method
The iodine test method is used for the test.
5.2.2 Test equipment
1) Test machine for rubbing the center of gravity:
Standard balance, with a graduation value of more than 101g.
5.2.3 Test principle
Use the same rate of the secondary cabinet to test the wire rope at the specified force. The wire rope is rotated and the diameter is proportional to the maximum static tension of the hoist single rope. The pad and the wire rope slide relative to each other at a specified speed. Distance. Monitor the volumetric wear of the friction lining lift specimen and the wall force during sliding. The sliding distance needs to be converted into an equivalent lifting stroke. The unit friction dynamic factor is the volumetric wear of the lining. The wear rate of the pad with the highest degree of friction is obtained. 5.2.4 Test conditions
! The surface of the pad should be in a clean state. b) The average pressure flow per unit projected area of the rope during instantaneous shock is 2.0MPa) The relative sliding speed between the friction potential and the sealing wire rope is calculated according to the formula "5: Approximate calculation: V-AT%1O
Wu Zhong: ||tt ||Relative sliding speed between the test wire rope and the steel warp rope, unit is mnJB/T10347-2002
The maximum force difference of the same standard parameter hoist corresponding to the oxygen straightness of the test wire rope, unit is: V.-The maximum lifting connection of the hoist with the same specification standard parameter corresponding to the test wire rope, unit is m/s:-Number of hoist hook wire ropes:
The elastic modulus of the steel wire rope, E=0.75×1MP~-.5×t05MPa: The effective The unit is mm. The sliding distance should be 100 mm:
The ambient temperature during the test should be within the range of 25℃ and 5℃. 5.2.5 Test procedure
Before the test, the test piece wire rope should be cleaned and thoroughly dried, and there should be no tears and other impurities: a
Seal the hot test sample and the test system at the test temperature for 2 hours: b
Before the test, complete a complete test stroke under the test hoop, then clean the wear debris on the test lining, and weigh the friction roller with a balance. The weight of the pad sample:
After the test, first eliminate the friction and pick up the weight of sample 1: Then use the weight of the friction sample to eliminate the friction. During the test, the temperature should be controlled not to exceed 60: During the test, measure the friction force
and record the effective friction number
. 5.2.6 Calculation of grip rate
: Calculate the grip rate by measuring the friction force of the sample, that is, the average difference between the single sample before and after the test b) Adjust the difference to the formula (6) to calculate the wear rate: aG
Friction loss rate, unit la~cm kN·m certificate
Station test Xiaozhan lift and moving wire rope company and sliding speed, control formula (5) calculation, single letter Ems: Seat seal loss of the test sample, unit is the density of the test wire rope diameter according to the same standard set of the maximum lifting of the lift, single goods: test time Huacun and wire rope simple distance, unit is plus: test relay value measured during the test, unit is kNc: wear rate measurement should be rounded off, accurate to the decimal point. 5.3 Hardness determination
The provisions of GB/24] are in force, 6 Inspection rules
6.1 The product wear resistance must be inspected and qualified by the manufacturer's quality inspection department before it can leave the factory. When it leaves the factory, there should be documents proving the quality of the product. 6.2 Manufacturing! 6.3 Each batch of rubber pads shall be tested for performance and size. If the test is unqualified, the rubber pads shall be removed immediately. 5
JB/T10347—2002
6.3 Each batch of rubber pads shall be tested for performance and size. The test results shall be as follows: Product quality coefficient:
Rising rate:
Hardness (HD)
6.4 If the performance test is unqualified, additional sampling shall be conducted to re-test the unqualified items. If the test is still unqualified, the batch shall be handled. 7 Marking, packaging, transportation and storage
7.1 The packaging items shall be marked with the manufacturer's name! 7.2 The packaging bag () should be marked with the manufacturer's name, manufacturer and factory name:
Product name and specifications:
…·Invoice and address:
Quantity:
Date
7.3 The packaging bag should be accompanied by the following technical documents:
Product quality certification documents:
Product quality inspection report:
Instructions for use
Product quality certification documents include the following contents:
Product name, specification, drawing number, batch number: - Product quantity:
- Inspector number and appropriate inspection department signature. The friction performance inspection report should include the following contents: Manufacturer name:
, Sealing pad tree number, specification and designation: Product implementation standard number
, Equipment model, wire rope specifications: Test conditions: including surface condition, temperature, etc., and test data: friction coefficient, increase and decrease of filter concentration and test results: Give the friction coefficient value of the parts: Inspection unit, inspection date, inspection date, inspector name and inspection unit. The manual should include the following contents:
, Technical parameters: including allowable shielding coefficient, induction rate, expansion coefficient, chemical point, etc.: Use conditions: including condition, pressure, temperature, etc.: Failure cases and failure identification methods:
, This case is attached, and the expired treatment method is attached. 7.4 The friction pad should be placed in a place that is away from wind and sunlight, and the conditions specified in its instruction manual should be observed.9 Determination of test results
a) Select the lowest data value in each surface condition test data as the basis for determining the test results) Use formulas 1 and 3? to calculate the average value and standard deviation of the selected data of each state respectively.
Select the average value of the friction coefficient test value
Select the number of friction coefficient test values;
"Standard deviation of the friction coefficient test value
Calculate the main distribution range of the test data of various states based on the average value and standard deviation, and this range is the test result: the calculation result needs to be rounded off to the last two digits of the effective point. Determination of the allowable value of friction coefficient
Select the number of test data of the state with the lowest data value b) For the coating rate absorption state test, the test data when the rope temperature reaches 30°C should be selected as the basis for determining the specific use: 3
Find the formula: 2) and (3) Let the average value and standard gain of the selected data be calculated, according to the formula! 4) Let the allowable position of the environmental coefficient of the effective test friction absorption potential be calculated,
Wu Feng:
allowable reverse connection coefficient value,
d) The allowable value of the number of storage decay bars is replaced by the decimal point method, and the position after the decimal point is 5.2 Deer damage test
5.2 .1 Test method
The iodine test method is used for the test.
5.2.2 Test equipment
1) Test machine for rubbing the center of gravity:
Standard balance, with a graduation value of more than 101g.
5.2.3 Test principle
Use the same rate of the secondary cabinet to test the wire rope at the specified force. The wire rope is rotated and the diameter is proportional to the maximum static tension of the hoist single rope. The pad and the wire rope slide relative to each other at a specified speed. Distance. Monitor the volumetric wear of the friction lining lift specimen and the wall force during sliding. The sliding distance needs to be converted into an equivalent lifting stroke. The unit friction dynamic factor is the volumetric wear of the lining. The wear rate of the pad with the highest degree of friction is obtained. 5.2.4 Test conditions
! The surface of the pad should be in a clean state. b) The average pressure flow per unit projected area of the rope during instantaneous shock is 2.0MPa) The relative sliding speed between the friction potential and the sealing wire rope is calculated according to the formula "5: Approximate calculation: V-AT%1O
Wu Zhong: ||tt ||Relative sliding speed between the test wire rope and the steel warp rope, unit is mnJB/T10347-2002
The maximum force difference of the same standard parameter hoist corresponding to the oxygen straightness of the test wire rope, unit is: V.-The maximum lifting connection of the hoist with the same specification standard parameter corresponding to the test wire rope, unit is m/s:-Number of hoist hook wire ropes:
The elastic modulus of the steel wire rope, E=0.75×1MP~-.5×t05MPa: The effective The unit is mm. The sliding distance should be 100 mm:
The ambient temperature during the test should be within the range of 25℃ and 5℃. 5.2.5 Test procedure
Before the test, the test piece wire rope should be cleaned and thoroughly dried, and there should be no tears and other impurities: a
Seal the hot test sample and the test system at the test temperature for 2 hours: b
Before the test, complete a complete test stroke under the test hoop, then clean the wear debris on the test lining, and weigh the friction roller with a balance. The weight of the pad sample:
After the test, first eliminate the friction and pick up the weight of sample 1: Then use the weight of the friction sample to eliminate the friction. During the test, the temperature should be controlled not to exceed 60: During the test, measure the friction force
and record the effective friction number
. 5.2.6 Calculation of grip rate
: Calculate the grip rate by measuring the friction force of the sample, that is, the average difference between the single sample before and after the test b) Adjust the difference to the formula (6) to calculate the wear rate: aG
Friction loss rate, unit la~cm kN·m certificate
Station test Xiaozhan lift and moving wire rope company and sliding speed, control formula (5) calculation, single letter Ems: Seat seal loss of the test sample, unit is the density of the test wire rope diameter according to the same standard set of the maximum lifting of the lift, single goods: test time Huacun and wire rope simple distance, unit is plus: test relay value measured during the test, unit is kNc: wear rate measurement should be rounded off, accurate to the decimal point. 5.3 Hardness determination
The provisions of GB/24] are in force, 6 Inspection rules
6.1 The product wear resistance must be inspected and qualified by the manufacturer's quality inspection department before it can leave the factory. When it leaves the factory, there should be documents proving the quality of the product. 6.2 Manufacturing! 6.3 Each batch of rubber pads shall be tested for performance and size. If the test is unqualified, the rubber pads shall be removed immediately. 5
JB/T10347—2002
6.3 Each batch of rubber pads shall be tested for performance and size. The test results shall be as follows: Product quality coefficient:
Rising rate:
Hardness (HD)
6.4 If the performance test is unqualified, additional sampling shall be conducted to re-test the unqualified items. If the test is still unqualified, the batch shall be handled. 7 Marking, packaging, transportation and storage
7.1 The packaging items shall be marked with the manufacturer's name! 7.2 The packaging bag () should be marked with the manufacturer's name, manufacturer and factory name:
Product name and specifications:
…·Invoice and address:
Quantity:
Date
7.3 The packaging bag should be accompanied by the following technical documents:
Product quality certification documents:
Product quality inspection report:
Instructions for use
Product quality certification documents include the following contents:
Product name, specification, drawing number, batch number: - Product quantity:
- Inspector number and appropriate inspection department signature. The friction performance inspection report should include the following contents: Manufacturer name:
, Sealing pad tree number, specification and designation: Product implementation standard number
, Equipment model, wire rope specifications: Test conditions: including surface condition, temperature, etc., and test data: friction coefficient, increase and decrease of filter concentration and test results: Give the friction coefficient value of the parts: Inspection unit, inspection date, inspection date, inspector name and inspection unit. The manual should include the following contents:
, Technical parameters: including allowable shielding coefficient, induction rate, expansion coefficient, chemical point, etc.: Use conditions: including condition, pressure, temperature, etc.: Failure cases and failure identification methods:
, This case is attached, and the expired treatment method is attached. 7.4 The friction pad should be placed in a place that is away from wind and sunlight, and the conditions specified in its instruction manual should be observed.9 Determination of test results
a) Select the lowest data value in each surface condition test data as the basis for determining the test results) Use formulas 1 and 3? to calculate the average value and standard deviation of the selected data of each state respectively.
Select the average value of the friction coefficient test value
Select the number of friction coefficient test values;
"Standard deviation of the friction coefficient test value
Calculate the main distribution range of the test data of various states based on the average value and standard deviation, and this range is the test result: the calculation result needs to be rounded off to the last two digits of the effective point. Determination of the allowable value of friction coefficient
Select the number of test data of the state with the lowest data value b) For the coating rate absorption state test, the test data when the rope temperature reaches 30°C should be selected as the basis for determining the specific use: 3
Find the formula: 2) and (3) Let the average value and standard gain of the selected data be calculated, according to the formula! 4) Let the allowable position of the environmental coefficient of the effective test friction absorption potential be calculated,
Wu Feng:
allowable reverse connection coefficient value,
d) The allowable value of the number of storage decay bars is replaced by the decimal point method, and the position after the decimal point is 5.2 Deer damage test
5.2 .1 Test method
The iodine test method is used for the test.
5.2.2 Test equipment
1) Test machine for rubbing the center of gravity:
Standard balance, with a graduation value of more than 101g.
5.2.3 Test principle
Use the same rate of the secondary cabinet to test the wire rope at the specified force. The wire rope is rotated and the diameter is proportional to the maximum static tension of the hoist single rope. The pad and the wire rope slide relative to each other at a specified speed. Distance. Monitor the volumetric wear of the friction lining lift specimen and the wall force during sliding. The sliding distance needs to be converted into an equivalent lifting stroke. The unit friction dynamic factor is the volumetric wear of the lining. The wear rate of the pad with the highest degree of friction is obtained. 5.2.4 Test conditions
! The surface of the pad should be in a clean state. b) The average pressure flow per unit projected area of the rope during instantaneous shock is 2.0MPa) The relative sliding speed between the friction potential and the sealing wire rope is calculated according to the formula "5: Approximate calculation: V-AT%1O
Wu Zhong: ||tt ||Relative sliding speed between the test wire rope and the steel warp rope, unit is mnJB/T10347-2002
The maximum force difference of the same standard parameter hoist corresponding to the oxygen straightness of the test wire rope, unit is: V.-The maximum lifting connection of the hoist with the same specification standard parameter corresponding to the test wire rope, unit is m/s:-Number of hoist hook wire ropes:
The elastic modulus of the steel wire rope, E=0.75×1MP~-.5×t05MPa: The effective The unit is mm. The sliding distance should be 100 mm:
The ambient temperature during the test should be within the range of 25℃ and 5℃. 5.2.5 Test procedure
Before the test, the test piece wire rope should be cleaned and thoroughly dried, and there should be no tears and other impurities: a
Seal the hot test sample and the test system at the test temperature for 2 hours: b
Before the test, complete a complete test stroke under the test hoop, then clean the wear debris on the test lining, and weigh the friction roller with a balance. The weight of the pad sample:
After the test, first eliminate the friction and pick up the weight of sample 1: Then use the weight of the friction sample to eliminate the friction. During the test, the temperature should be controlled not to exceed 60: During the test, measure the friction force
and record the effective friction number bZxz.net
. 5.2.6 Calculation of grip rate
: Calculate the grip rate by measuring the friction force of the sample, that is, the average difference between the single sample before and after the test b) Adjust the difference to the formula (6) to calculate the wear rate: aG
Friction loss rate, unit la~cm kN·m certificate
Station test Xiaozhan lift and moving wire rope company and sliding speed, control formula (5) calculation, single letter Ems: Seat seal loss of the test sample, unit is the density of the test wire rope diameter according to the same standard set of the maximum lifting of the lift, single goods: test time Huacun and wire rope simple distance, unit is plus: test relay value measured during the test, unit is kNc: wear rate measurement should be rounded off, accurate to the decimal point. 5.3 Hardness determination
The provisions of GB/24] are in force, 6 Inspection rules
6.1 The product wear resistance must be inspected and qualified by the manufacturer's quality inspection department before it can leave the factory. When it leaves the factory, there should be documents proving the quality of the product. 6.2 Manufacturing! 6.3 Each batch of rubber pads shall be tested for performance and size. If the test is unqualified, the rubber pads shall be removed immediately. 5
JB/T10347—2002
6.3 Each batch of rubber pads shall be tested for performance and size. The test results shall be as follows: Product quality coefficient:
Rising rate:
Hardness (HD)
6.4 If the performance test is unqualified, additional sampling shall be conducted to re-test the unqualified items. If the test is still unqualified, the batch shall be handled. 7 Marking, packaging, transportation and storage
7.1 The packaging items shall be marked with the manufacturer's name! 7.2 The packaging bag () should be marked with the manufacturer's name, manufacturer and factory name:
Product name and specifications:
…·Invoice and address:
Quantity:
Date
7.3 The packaging bag should be accompanied by the following technical documents:
Product quality certification documents:
Product quality inspection report:
Instructions for use
Product quality certification documents include the following contents:
Product name, specification, drawing number, batch number: - Product quantity:
- Inspector number and appropriate inspection department signature. The friction performance inspection report should include the following contents: Manufacturer name:
, Sealing pad tree number, specification and designation: Product implementation standard number
, Equipment model, wire rope specifications: Test conditions: including surface condition, temperature, etc., and test data: friction coefficient, increase and decrease of filter concentration and test results: Give the friction coefficient value of the parts: Inspection unit, inspection date, inspection date, inspector name and inspection unit. The manual should include the following contents:
, Technical parameters: including allowable shielding coefficient, induction rate, expansion coefficient, chemical point, etc.: Use conditions: including condition, pressure, temperature, etc.: Failure cases and failure identification methods:
, This case is attached, and the expired treatment method is attached. 7.4 The friction pad should be placed in a place that is away from wind and sunlight, and the conditions specified in its instruction manual should be observed.0MPa) The relative sliding speed between the friction force and the sealing wire rope is approximately calculated according to the formula "5: V-AT%1O
Wu Zhong:
The relative sliding speed between the friction force and the steel warp rope during the test, the unit is mnJB/T10347-2002
The maximum force difference of the lifting machine with the same standard parameters corresponding to the test wire rope, the unit is: V·.-The maximum lifting connection of the test wire rope and the same specification standard parameters corresponding to the warp, the unit is m/s:-Number of hoist hooks:
The elastic modulus of the steel wire rope, E=0.75×1MP~-.5×t05MPa: The effective cross-sectional area of the steel wire rope, the unit is mm. The sliding distance should be 10m:
The ambient temperature during the test should be within the range of 25℃ + 5℃. 5.2.5 Test procedure
Before the test, the test piece wire rope should be cleaned and thoroughly dried, and there should be no tears and other impurities: a
Seal the hot test sample and the test system at the test temperature for 2h: b
Before the test, complete a complete test stroke under the test hoop, then remove the wear debris on the test lining, and weigh the weight of the friction pad sample with a balance:
After the test, first eliminate the friction of the sample: Then use a balance to weigh the weight of the friction potential sample. During the test, the temperature should be controlled not to exceed 60: Measure the friction force during the test
Record the effective counter
5.2. 6 Calculation of grip rate
: The calculation rate is based on the amount of sample speed, that is, the average difference between the sample before and after the test b) The wear rate is calculated by adjusting the compensation to formula (6): aG
Friction loss rate, unit: la~cmkN·m
The speed of the test wire rope and the sliding method, calculated by formula (5), Ems: The loss basis of the test specimen, unit: Density of the test agent:
Or the maximum lifting voltage of the same standard lift according to the reduced wire rope diameter, unit: The distance between the test wire rope and the moving wire rope during the test, unit: Add: The relay force value measured during the test, unit: kNc: The wear rate should be rounded off, with accuracy to decimal places. 5.3 Hardness determination
The provisions of GB/24191-2002 shall apply. 6 Inspection rules
6.1 The product shall be inspected and qualified by the quality inspection department of the manufacturer before it can leave the factory. When leaving the factory, there shall be documents proving the quality of the product. 6.2 During manufacturing, the external and internal dimensions of the product shall be inspected and those that fail shall be removed immediately. 5
JB/T10347—2002
6.3 Each batch of products shall be tested for performance by the second batch or standard sample. The performance coefficient of each batch is:
The performance coefficient is:
The hardness of the product (HD)
6.4 If the performance test fails, additional sampling shall be conducted to re-inspect the unqualified items. If it still fails, the batch shall be disposed of. 7 Marking, packaging, transportation and storage
7.1 The manufacturer’s name, product specifications and trademark should be marked on the top of the bag, and the batch number should be printed on the bottom: 7.2 The color of the packaging bag should comply with the provisions of GBT13384 and the requirements of general transportation: The outside of the packaging bag () should be marked with the manufacturer’s name, trade name and factory:
Product name and specifications:
...·Order and address:
Quantity:
7.3 The package of the product should be accompanied by the following technical documents: - Product quality certification documents: - Product quality inspection report: - Instruction manual - Product quality certification documents include the following contents: - Product name: - Product name, specification, drawing number - Batch number: - Product quantity: - Inspection number and appropriate inspection department signature. The friction performance inspection report should include the following contents: Manufacturer name:
, Sealing pad tree number, specification and designation: Product implementation standard number
, Equipment model, wire rope specifications: Test conditions: including surface condition, temperature, etc., and test data: friction coefficient, increase and decrease of filter concentration and test results: Give the friction coefficient value of the parts: Inspection unit, inspection date, inspection date, inspector name and inspection unit. The manual should include the following contents:
, Technical parameters: including allowable shielding coefficient, induction rate, expansion coefficient, chemical point, etc.: Use conditions: including condition, pressure, temperature, etc.: Failure cases and failure identification methods:
, This case is attached, and the expired treatment method is attached. 7.4 The friction pad should be placed in a place that is away from wind and sunlight, and the conditions specified in its instruction manual should be observed.0MPa) The relative sliding speed between the friction force and the sealing wire rope is approximately calculated according to the formula "5: V-AT%1O
Wu Zhong:
The relative sliding speed between the friction force and the steel warp rope during the test, the unit is mnJB/T10347-2002
The maximum force difference of the lifting machine with the same standard parameters corresponding to the test wire rope, the unit is: V·.-The maximum lifting connection of the test wire rope and the same specification standard parameters corresponding to the warp, the unit is m/s:-Number of hoist hooks:
The elastic modulus of the steel wire rope, E=0.75×1MP~-.5×t05MPa: The effective cross-sectional area of the steel wire rope, the unit is mm. The sliding distance should be 10m:
The ambient temperature during the test should be within the range of 25℃ + 5℃. 5.2.5 Test procedure
Before the test, the test piece wire rope should be cleaned and thoroughly dried, and there should be no tears and other impurities: a
Seal the hot test sample and the test system at the test temperature for 2h: b
Before the test, complete a complete test stroke under the test hoop, then remove the wear debris on the test lining, and weigh the weight of the friction pad sample with a balance:
After the test, first eliminate the friction of the sample: Then use a balance to weigh the weight of the friction potential sample. During the test, the temperature should be controlled not to exceed 60: Measure the friction force during the test
Record the effective counter
5.2. 6 Calculation of grip rate
: The calculation rate is based on the amount of sample speed, that is, the average difference between the sample before and after the test b) The wear rate is calculated by adjusting the compensation to formula (6): aG
Friction loss rate, unit: la~cmkN·m
The speed of the test wire rope and the sliding method, calculated by formula (5), Ems: The loss basis of the test specimen, unit: Density of the test agent:
Or the maximum lifting voltage of the same standard lift according to the reduced wire rope diameter, unit: The distance between the test wire rope and the moving wire rope during the test, unit: Add: The relay force value measured during the test, unit: kNc: The wear rate should be rounded off, with accuracy to decimal places. 5.3 Hardness determination
The provisions of GB/24191-2002 shall apply. 6 Inspection rules
6.1 The product shall be inspected and qualified by the quality inspection department of the manufacturer before it can leave the factory. When leaving the factory, there shall be documents proving the quality of the product. 6.2 During manufacturing, the external and internal dimensions of the product shall be inspected and those that fail shall be removed immediately. 5
JB/T10347—2002
6.3 Each batch of products shall be tested for performance by the second batch or standard sample. The performance coefficient of each batch is:
The performance coefficient is:
The hardness of the product (HD)
6.4 If the performance test fails, additional sampling shall be conducted to re-inspect the unqualified items. If it still fails, the batch shall be disposed of. 7 Marking, packaging, transportation and storage
7.1 The manufacturer’s name, product specifications and trademark should be marked on the top of the bag, and the batch number should be printed on the bottom: 7.2 The color of the packaging bag should comply with the provisions of GBT13384 and the requirements of general transportation: The outside of the packaging bag () should be marked with the manufacturer’s name, trade name and factory:
Product name and specifications:
...·Order and address:
Quantity:
7.3 The package of the product should be accompanied by the following technical documents: - Product quality certification documents: - Product quality inspection report: - Instruction manual - Product quality certification documents include the following contents: - Product name: - Product name, specification, drawing number - Batch number: - Product quantity: - Inspection number and appropriate inspection department signature. The friction performance inspection report should include the following contents: Manufacturer name:
, Sealing pad tree number, specification and designation: Product implementation standard number
, Equipment model, wire rope specifications: Test conditions: including surface condition, temperature, etc., and test data: friction coefficient, increase and decrease of filter concentration and test results: Give the friction coefficient value of the parts: Inspection unit, inspection date, inspection date, inspector name and inspection unit. The manual should include the following contents:
, Technical parameters: including allowable shielding coefficient, induction rate, expansion coefficient, chemical point, etc.: Use conditions: including condition, pressure, temperature, etc.: Failure cases and failure identification methods:
, This case is attached, and the expired treatment method is attached. 7.4 The friction pad should be placed in a place that is away from wind and sunlight, and the conditions specified in its instruction manual should be observed.3. The package of the product should be accompanied by the following technical documents: 1. Product quality certification documents:
Product performance test report:
Instruction manual
Product quality certification documents include the following contents:
Product name: Product name, specification, drawing number and batch number: - Product quantity:
- Inspection number and appropriate inspection department signature. The friction performance inspection report should include the following contents: Manufacturer name:
, Sealing pad tree number, specification and designation: Product implementation standard number
, Equipment model, wire rope specifications: Test conditions: including surface condition, temperature, etc., and test data: friction coefficient, increase and decrease of filter concentration and test results: Give the friction coefficient value of the parts: Inspection unit, inspection date, inspection date, inspector name and inspection unit. The manual should include the following contents:
, Technical parameters: including allowable shielding coefficient, induction rate, expansion coefficient, chemical point, etc.: Use conditions: including condition, pressure, temperature, etc.: Failure cases and failure identification methods:
, This case is attached, and the expired treatment method is attached. 7.4 The friction pad should be placed in a place that is away from wind and sunlight, and the conditions specified in its instruction manual should be observed.3. The package of the product should be accompanied by the following technical documents: 1. Product quality certification documents:
Product performance test report:
Instruction manual
Product quality certification documents include the following contents:
Product name: Product name, specification, drawing number and batch number: - Product quantity:
- Inspection number and appropriate inspection department signature. The friction performance inspection report should include the following contents: Manufacturer name:
, Sealing pad tree number, specification and designation: Product implementation standard number
, Equipment model, wire rope specifications: Test conditions: including surface condition, temperature, etc., and test data: friction coefficient, increase and decrease of filter concentration and test results: Give the friction coefficient value: Inspection unit, inspection date, inspection date, inspector name and inspection unit. The manual should include the following contents:
, Technical parameters: including allowable shielding coefficient, induction rate, expansion coefficient, chemical point, etc.: Use conditions: including condition, pressure, temperature, etc.: Failure cases and failure identification methods:
, This case is attached, and the expired treatment method is attached. 7.4 The friction pad should be placed in a place that is away from wind and sunlight, and the conditions specified in its instruction manual should be observed.
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