Some standard content:
ICS23.100.20
Machinery Industry Standard of the People's Republic of China
JB/T10205--2000
Technical Specifications for Hydraulic Cylinders
Hydraulic Fluid Power CylindersTechnical Specifications2000-08-31 Issued
National Machinery Industry Bureau
2000-12-01 Implementation
JB10205—z2000
This standard is used in conjunction with GB15622-—1995 Test Method for Hydraulic Cylinders. This standard was proposed and managed by the National Technical Committee for Standardization of Hydraulic Pressure and Pneumatics. The responsible drafting units of this standard are: Tianjin Engineering Machinery Research Institute, China Agricultural Machinery Research Institute, Institute of Pressure Measurement, Institute of Hydraulic Pressure Measurement Co., Ltd., Hehai Yunyang Yangtze River Hangji Co., Ltd., Longyan Hydraulic Co., Ltd., Zhangjiakou Changcheng Lingzhi Oil Cylinder Co., Ltd., Dajin Huabei Hydraulic Pipe Fittings.
The participating units of this standard are: Xuzhou Hydraulic Parts Factory, Linqing Automobile Lifting Device Research Institute, Xiayinhua Machinery Factory, Renlian Plated Pressing Parts Factory, Zuizhou Cold Cylinder Factory, Qingzhou Chu Pressing Parts Factory. The main drafters of this standard are: Liu Zongxiao, Yang Linxing, Wang Zuochan, Cui Lianhe, Zheng Ceyan, Duan Chaoli, Huang Senshen. This standard was first issued in August 2000.
Machinery Industry Standard of the People's Republic of China
Technical Conditions for Hydraulic Cylinders
Hydraulic Fluid Power Cyhinders--Tarhilcal Speclficattons910205—2000
This standard specifies the technical conditions for single and double hydraulic cylinders. The above standards apply to hydraulic oil or other mineral hydraulic fluids with equivalent performance as working medium. 2 Referenced standards
The provisions of the following standards constitute the provisions of this standard through reference in this document. When this standard is published, the versions shown are valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest version of the following standards. GB/T 2346—1988
GD/T 2348—1993
GB/T 2350—1980
GB/T 2828—1987
GB/T 2878—1993
GB/T2874—1986
GB2880—1981
GBT 6577—1986
GB.T65T8—1986
GBT79:5—1987
GR/T 15622-1995
GEt17446--1998
JE/T7858—1995
3 Definitions
Filter-pressure pneumatic systems and components, nominal specific force series, hydraulic pneumatic systems and optical components, cylinder inner diameter and live-seal rod outer diameter, hydraulic pneumatic systems and components, suitable plug rod thread type and size series, batch control counting sample procedure and sampling table (applicable to chain batch inspection), pressure component thread, reverse connection oil port type and size, filter-pressure cylinder piston and live-seal rod Type, size and tolerance of dynamic seal grooves for pistons and movable parts of hydraulic cylinders; Type, size and tolerance of seal grooves with support rings for hydraulic cylinders; Type, size and tolerance of dust rings for hydraulic parts; General technical conditions for hydraulic components
Test methods for hydraulic transmission systems and components
Terms for hydraulic components and cleanliness evaluation methods for hydraulic components and cleanliness indicators for hydraulic components. The definitions listed in GB/T17446 and the following definitions apply to this standard. 3.1 Nominal pressure
The nominal value of the working breakaway force of the hydraulic cylinder. That is, the working force that can ensure the expected service life when operating continuously under specified conditions. 3.2 Minimum starting breakaway pressure The minimum pressure at which the hydraulic cylinder starts.
3.3 Theoretical output theorellcalfarce
The force acting on the effective area of the filter or plunger, that is, the product of the filter pressure and the effective area of the filter or plunger. 3.4 Actual output actualforce
Approved by the State Machinery Industry Bureau on August 31, 2000 and implemented on December 1, 2000
The push (or pull) force actually output by the hydraulic cylinder, loadefficicncy
T102052000
The percentage of the actual output and theoretical output of the hydraulic cylinder 4 Technical requirements
General requirements
4.1.1 The nominal pressure series shall comply with the provisions of GB2346. The internal weight and piston rod (plug rod) external series shall comply with the provisions of GBT2348. 4.1.2
4.1.3 The thread size of the connecting end shall comply with the provisions of GB/T287B, and the thread of the movable rod shall comply with the provisions of GB/T2350. 4.1.4
The seal shall comply with the provisions of GB/12879, GB/2880, GB/16577, GB/16578. Other aspects shall comply with the provisions of 1.2~1.6 in GB/17935-1987. 4.1.5
4.1.6 Products with special requirements shall be agreed upon by the user and the manufacturer. 4.2 Performance in use
4.2.1 Low starting pressure
4.2.1.1 Double-acting hydraulic cylinder
The minimum starting pressure of a double-acting hydraulic cylinder shall not be greater than the provisions in Table 1. Table
Nominal pressure
Live seal type
,, Y, X, combined seal
Live sinus ringwwW.bzxz.Net
O, U, Y, X. Combined seal
Live honey ring
Single-acting hydraulic
Except type
Piston rod seal type
Total force X6%
Nominal H×4%
Nominal pressure×1.5%
a) Minimum starting pressure of piston type single-acting hydraulic cylinder It shall not be greater than the provisions in Table 2. Table 2
Nominal pressure smaller
Live seal type
Except V number
Except V ink
Nominal pressure X9%
Nominal pressure X6%
Nominal pressure × 2.5%
Piston rod type
Nominal pressure × 3.5%
Nominal pressure × 34%
b) The minimum starting pressure of the piston type single-acting hydraulic cylinder shall not be greater than the provisions in Table 3. 2
Normal pressure×9%
Nominal pressure×6%
Nominal pressure
JErT10205—2000
Nominal pressure×3.5%
Electromagnetic rod seal type
The female low starting pressure of the core multi-stage sleeve single-acting cylinder shall not be as specified in Table 4. Table 4
Nominal pressure
Internal non-leakage
4. 2. 3. 1
Nominal pressure×3.5%
Nominal force×4%
The internal leakage of double-acting pressure relief cylinder shall not exceed the provisions of Table 5, Table 5
Internal leakage inertia 4v
nlimla
Note: When using a combination seal, the internal leakage is allowed to be twice the current set value. The internal leakage of a single-acting hydraulic cylinder shall not exceed the provisions of Table 6, 4. 2. 2. 1
Internal leakage D
Internal leakage
1. When using a combination seal, the internal leakage is allowed to be 2 times the current set value, and the leakage shall not exceed 0.05mmvtain3This regulation is only applicable to single-acting hydraulic cylinders. Sleeve type
Inner diameter
Public force×6%
Nominal pressure×5%
Nominal pressure×6%
mL/min
Micro-country 4r
mL/mia
4.2.3 Load efficiency
The load efficiency of the pressure cylinder shall not be less than 90%. 4.2.4 External paint finish
JB/T10205—2000
4.2.4.1 Except for the piston rod (column rod), there is no frost seepage. 4.2.4.2 There shall be no leakage when the piston is stationary. 4.2.4.3 External leakage
) Double-acting cylinder
piston is fully connected 50,000 times, and the piston rod is not leaking. After changing direction 5 times, the sleeve moves 100m, when the piston diameter is 50mm, the external leakage is 0.05ml.; when the piston diameter is >50mm, the external leakage is 90.001dml single-acting hydraulic
floating piston single-acting hydraulic cylinder
piston full stroke change 40,000 times, the piston rod leakage is not full. After changing direction 40,000 times, the piston moves Bm every time, when the piston case diameter is 50mm, the external volume is 90.05mL: when the piston rod diameter is >50mm, the external volume is 40.001dml: the plug-type single-acting hydraulic lever
plunger is gently connected 25,000 times, and the plunger rod does not leak. After reversing 25,000 times, when the plug moves 65m, when the cylinder diameter is 50mm, the external full volume is 90.05m: when the plug diameter>50mm, the external leakage is 90.001mLe) Multi-stage sleeve single-acting pressure cylinder
Check the full stroke of the sleeve for 16,000 times, and the external leakage at the sleeve is not clear. After changing 16,000 times, when the sleeve moves 5m, when the sleeve diameter D≤m, the external volume is 0.0mL: when the sleeve diameter D>0ml, the external filter leakage is 0.001DmL. Calculation: Multi-stage sleeve pressure products are made in accordance with the year and month. The point diameter D is the average of the sum of the diameter of the entire first-level plug and the outer diameters of each level of the sleeve. 4.2. 5 Durability
4.2.5.1 Double acting cylinder, when piston stroke L 500mm, cumulative travel 10mkm; when travel > 50mm, cumulative number of reversing times N321.
4.2.5.1 Single acting cylinder
a) Piston type single acting cylinder, when piston stroke L 500mm, cumulative travel 100km; when travel > 500mm, cumulative number of reversing times W200,000 times.
b) Plug type single acting cylinder, when plunger stroke L 500mm, travel 75km; when travel > 500mm, cumulative number of reversing times 150,000 times.
c) Multiple sleeve simple single-acting pressure-blocking cylinder T. When the sleeve stroke L is 500mm, the cumulative stroke ≥ 50km: When the sleeve stroke L> 50mm, the cumulative reversing times is 10 squares.
4.2.5.3 After the durability test, the increase in internal leakage shall not be greater than 2 times the specified value, and the parts shall not have abnormal wear and other forms of damage.
4. 2.6. Pressure resistance
The cylinder body of the hydraulic cylinder shall be able to withstand an injection pressure of 1. times its maximum working pressure, and there shall be no external leakage or parts damage. 4.3 Assembly quality
4.3. Technical requirements for component assembly shall comply with the provisions of G White/T7935-19871.5-1.8. 4.3.2 Internal cleanliness
Test method JB/T7858 stipulates,
JB/T10205-2000
For double-acting hydraulic cylinders, the quality of dirt in the inner cavity shall comply with the provisions of Table 7, Table 7
80-110
125-16
Dirt quality
Cylinder inner diameter
180-250
320-500
Note : Calculated based on the stroke of 1m, for every increase of 1ml in the stroke, the pollutant content is allowed to increase by 50% of the index value. b) For clean type, column type single-acting pressure cylinder, the internal pollutant volume should comply with the requirements of Table B. Light, rate of contamination, 60~110, light, column density, 125-160, 180-2D0. Note: The volume is calculated based on 1u. For every additional 1m of travel, the pollutant mass is allowed to increase by 50% of the index value. C) For a family-level simple single-acting pressure relief set, the pollutants in the cavity shall comply with the provisions of Table 9. Table 9
will be added to the tree
50--70
RO-100F
pollutant mass
When the travel exceeds 1m, the pollutant mass is allowed to increase by 50% for every additional 1m
|Sleeve outer diameter
110~140
160-200
2Multi-stage sleeve single-acting pressure cylinder sleeve outer diameter center is the average value of the sum of the most alternate first-stage column straightness and the most individual sleeve outer diameter 4.4 Appearance requirements
The appearance requirements shall comply with the provisions of 1.9 and 1.10 in GB/T7935-1987, and the test method
The test method shall be in accordance with the provisions of GBIT13622.
Inspection rules
6.1 Inspection classification
Product inspection is divided into type inspection and factory inspection. Type inspection
Contaminant inspection
S:1335
Contaminant inspection
Contaminant
Type inspection refers to a comprehensive review of product quality, that is, a comprehensive inspection according to the technical requirements specified in the standard. Type inspection items shall be in accordance with the provisions of Chapter 6 of GB15622-1995. 5
JB/T10205-2000
Type inspection shall be carried out in any of the following situations: a) Trial type identification of new products or old products transferred to the factory for production; b) After formal production, if there are major deviations in structure, material science, and technology that may affect product performance; d) During normal production, regular (usually 5 years) or cumulative periodic inspection after regular production; d) When the product is stopped for a long time and resumed production; 3) When there is a significant difference between the factory inspection results and the last type inspection results; 4) When the national quality supervision agency issues a requirement for type inspection. 6.1.2 Factory inspection
Factory inspection refers to the various inspections that must be carried out on each product when it is delivered. Factory inspection is in accordance with the provisions of B15622-1995. The durability test (sampling test) is 10,000 reciprocating times. 6.2 Sampling
The sampling plan for batch products shall be in accordance with the provisions of GB/T2828. 6.2.1 Type inspection
a) Qualified quality level (AQL): 2.5;
h) Sampling plan type: one normal sampling plan; sample size: 5 sets.
To: Durability test sample efficiency is allowed to reduce. 6.2.2 Internal cleaning activity inspection
a) Qualified quality level (AQL; 2.5;
b) Sampling plan type: two positive belt sampling plan; c) Inspection level: general inspection level II.
6.3 Judgment rules
According to the provisions of GB/T2828.
Marking, packaging, transportation and storage
Marking, packaging, transportation and storage shall comply with the requirements of 1.9, 1.11 and 3 of GB/7935-1987.2 Internal cleanliness
Test method JB/T7858 stipulates,
JB/T10205-2000
Company double-acting hydraulic cylinder, the quality of the dirt in the inner cavity should comply with the provisions of Table 7, Table 7
80-110
125-16
Dirt quality
Cylinder inner diameter
180-250
320-500
Note: For every 1ml increase in stroke, the pollutant content is allowed to increase by 50% of the index value. b) For clean type, column type single-acting pressure cylinder, the internal pollutant volume should comply with the requirements of Table B: light, rate of contamination, 60~110, light, column density, 125-160, 180-200 Note: The volume is calculated based on 1u. For every additional 1m of travel, the pollutant mass is allowed to increase by 50% of the index value. C) For a family-level simple single-acting pressure relief set, the pollutants in the cavity shall comply with the provisions of Table 9. Table 9
will be added to the tree
50--70
RO-100F
pollutant mass
When the travel exceeds 1m, the pollutant mass is allowed to increase by 50% for every additional 1m
|Sleeve outer diameter
110~140
160-200
2Multi-stage sleeve single-acting pressure cylinder sleeve outer diameter center is the average value of the sum of the most alternate first-stage column straightness and the most individual sleeve outer diameter 4.4 Appearance requirements
The appearance requirements shall comply with the provisions of 1.9 and 1.10 in GB/T7935-1987, and the test method
The test method shall be in accordance with the provisions of GBIT13622.
Inspection rules
6.1 Inspection classification
Product inspection is divided into type inspection and factory inspection. Type inspection
Contaminant inspection
S:1335
Contaminant inspection
Contaminant
Type inspection refers to a comprehensive review of product quality, that is, a comprehensive inspection according to the technical requirements specified in the standard. Type inspection items shall be in accordance with the provisions of Chapter 6 of GB15622-1995. 5
JB/T10205-2000
Type inspection shall be carried out in any of the following situations: a) Trial type identification of new products or old products transferred to the factory for production; b) After formal production, if there are major deviations in structure, material science, and technology that may affect product performance; d) During normal production, regular (usually 5 years) or cumulative periodic inspection after regular production; d) When the product is stopped for a long time and resumed production; 3) When there is a significant difference between the factory inspection results and the last type inspection results; 4) When the national quality supervision agency issues a requirement for type inspection. 6.1.2 Factory inspection
Factory inspection refers to the various inspections that must be carried out on each product when it is delivered. Factory inspection is in accordance with the provisions of B15622-1995. The durability test (sampling test) is 10,000 reciprocating times. 6.2 Sampling
The sampling plan for batch products shall be in accordance with the provisions of GB/T2828. 6.2.1 Type inspection
a) Qualified quality level (AQL): 2.5;
h) Sampling plan type: one normal sampling plan; sample size: 5 sets.
To: Durability test sample efficiency is allowed to reduce. 6.2.2 Internal cleaning activity inspection
a) Qualified quality level (AQL; 2.5;
b) Sampling plan type: two positive belt sampling plan; c) Inspection level: general inspection level II.
6.3 Judgment rules
According to the provisions of GB/T2828.
Marking, packaging, transportation and storage
Marking, packaging, transportation and storage shall comply with the requirements of 1.9, 1.11 and 3 of GB/7935-1987.2 Internal cleanliness
Test method JB/T7858 stipulates,
JB/T10205-2000
Company double-acting hydraulic cylinder, the quality of the dirt in the inner cavity should comply with the provisions of Table 7, Table 7
80-110
125-16
Dirt quality
Cylinder inner diameter
180-250
320-500
Note: For every 1ml increase in stroke, the pollutant content is allowed to increase by 50% of the index value. b) For clean type, column type single-acting pressure cylinder, the internal pollutant volume should comply with the requirements of Table B: light, rate of contamination, 60~110, light, column density, 125-160, 180-200 Note: The volume is calculated based on 1u. For every additional 1m of travel, the pollutant mass is allowed to increase by 50% of the index value. C) For a family-level simple single-acting pressure relief set, the pollutants in the cavity shall comply with the provisions of Table 9. Table 9
will be added to the tree
50--70
RO-100F
pollutant mass
When the travel exceeds 1m, the pollutant mass is allowed to increase by 50% for every additional 1m
|Sleeve outer diameter
110~140
160-200
2Multi-stage sleeve single-acting pressure cylinder sleeve outer diameter center is the average value of the sum of the most alternate first-stage column straightness and the most individual sleeve outer diameter 4.4 Appearance requirements
The appearance requirements shall comply with the provisions of 1.9 and 1.10 in GB/T7935-1987, and the test method
The test method shall be in accordance with the provisions of GBIT13622.
Inspection rules
6.1 Inspection classification
Product inspection is divided into type inspection and factory inspection. Type inspection
Contaminant inspection
S:1335
Contaminant inspection
Contaminant
Type inspection refers to a comprehensive review of product quality, that is, a comprehensive inspection according to the technical requirements specified in the standard. Type inspection items shall be in accordance with the provisions of Chapter 6 of GB15622-1995. 5
JB/T10205-2000
Type inspection shall be carried out in any of the following situations: a) Trial type identification of new products or old products transferred to the factory for production; b) After formal production, if there are major deviations in structure, material science, and technology that may affect product performance; d) During normal production, regular (usually 5 years) or cumulative periodic inspection after regular production; d) When the product is stopped for a long time and resumed production; 3) When there is a significant difference between the factory inspection results and the last type inspection results; 4) When the national quality supervision agency issues a requirement for type inspection. 6.1.2 Factory inspection
Factory inspection refers to the various inspections that must be carried out on each product when it is delivered. Factory inspection is in accordance with the provisions of B15622-1995. The durability test (sampling test) is 10,000 reciprocating times. 6.2 Sampling
The sampling plan for batch products shall be in accordance with the provisions of GB/T2828. 6.2.1 Type inspection
a) Qualified quality level (AQL): 2.5;
h) Sampling plan type: one normal sampling plan; sample size: 5 sets.
To: Durability test sample efficiency is allowed to reduce. 6.2.2 Internal cleaning activity inspection
a) Qualified quality level (AQL; 2.5;
b) Sampling plan type: two positive belt sampling plan; c) Inspection level: general inspection level II.
6.3 Judgment rules
According to the provisions of GB/T2828.
Marking, packaging, transportation and storage
Marking, packaging, transportation and storage shall comply with the requirements of 1.9, 1.11 and 3 of GB/7935-1987.
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