JB/T 2500-1997 This standard is a revision of ZB D93 003-88 "Pneumatic winch" and JB/T 2500-92 "JQH type pneumatic winch", and is integrated into one. This standard specifies the type and basic parameters, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage of winches driven by piston and gear pneumatic motors. This standard is applicable to pneumatic winches used for auxiliary lifting or towing of heavy objects in mines, oil drilling, ships and places with flammable gases. JB/T 2500-1997 Pneumatic winch JB/T2500-1997 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T2500-1997
Pneumatic Winch
Published on March 4, 1997
Ministry of Machinery Industry of the People's Republic of China
Implemented on October 1, 1997
JB/T2500-1997
This standard is a revision of ZBD93003-88 "Pneumatic Winch" and JB/T2500-92 "JQH Pneumatic Winch", and is integrated into one.
This standard revises the content of 4.7 in the technical requirements of ZBD93003-88 "Pneumatic Winch", and modifies the accuracy of the transmission gear of the winch according to GB10095-88 "Involute Cylindrical Gear Accuracy", and uses the number set method to convert it into: not less than 998 level This standard shall be implemented from October 1, 1997. From the date of implementation of this standard, ZBD93003-88 and JB/T2500-92 shall be invalidated. This standard is proposed and managed by the National Technical Committee for Standardization of Mining Machinery. The responsible drafting unit of this standard is Shanghai Dongfeng Machinery Factory. The participating drafting units of this standard are Chongqing Mining Machinery Factory and Luoyang Mining Machinery Research Institute. The main drafters of this standard are Mao Jiwei, Pan Baozhu, Rong Xiaojun, Guo Ming and Huang Liping. This standard is entrusted to the National Technical Committee for Standardization of Mining Machinery for interpretation. 1 Scope
Machinery Industry Standard of the People's Republic of China
Pneumatic Winch
JB/T2500-1997
Replaces ZBD93003-88
JBT2500-92
This standard specifies the type and basic parameters, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage of winches driven by piston and gear pneumatic motors. This standard applies to pneumatic winches used for auxiliary lifting or towing of heavy objects in mines, oil drilling, ships and places with flammable gases. 2 Referenced standardswww.bzxz.net
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB191—90
GB1009588
GB/T 1330691
GB/T1338492
JB/T612592
3 Types and basic parameters
3.1 Type
Packaging, storage and transportation diagrams
Precision of involute cylindrical gears
General technical conditions for packaging of electromechanical products
Test method for JQH type pneumatic winch
Pneumatic winches are divided into three types: pneumatic winches with single-support piston-type pneumatic motor drive, pneumatic winches with double-support piston-type pneumatic motor drive and pneumatic winches with gear-type pneumatic motor drive.
3.2 Model Indication Method
JQ□□-
Wire Rope Speed ​​m/min
Rated Wire Rope Tension KN
Drum Support Type: Single Support No Code: Double Support: SH-Piston Pneumatic Motor Drive: C-Gear Pneumatic Motor Drive Pneumatic Winch
Winches
Product Model Example:
a) Standard drum piston pneumatic winch with rated tension of 5kN and wire rope speed of 48m/min is represented as: JQH-5×48
Approved by the Ministry of Machinery Industry on March 4, 1997
1 997-10-01 implementation
JB/T2500-1997
b) The double-support drum piston pneumatic winch with a rated tension of 34kN and a wire rope speed of 21m/min is represented by: JOHS-34X21
c) The standard drum gear pneumatic winch with a rated tension of 10kN and a wire rope speed of 12m/min is represented by: JQC-10×12
Basic parameters
The basic parameters of the winch shall comply with the provisions of Table 1Table 1
JQH-5×48
JQH-10X×24
J OH-20×24
JQHS-5×12
JQHS-7×18
JQHS-14X45
JQHS-23X35
JQHS-30X20
JQHS-34×21
JQHS-45X17
JQHS-50X12
JOC-5X24
JQC-10X×12
JQC-20×6
Rated tension
1Wire rope speed deviation ±5%:
2Air consumption Rate deviation ±8%:
3d is the wire rope diameter
4 Technical requirements
Wire rope speed
Basic parameters of winch
Rated air intake pressure
Air consumption rate
m/(min/kw)
Rope capacity
The winch shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 4.2
Any technical requirements not specified in this standard shall comply with the provisions of the relevant current national standards or industry standards. The meshing rotor gear accuracy of the gear-type pneumatic motor shall not be lower than the 7th grade specified in GB10095-88. The transmission gear accuracy of the winch shall not be lower than the 998th grade specified in GB10095-88. The working surface roughness R value of the piston pneumatic winch cylinder is 1.6μm. The working surface roughness R value of the rotary valve (main valve) of the piston pneumatic winch is 1.6μm. Geared pneumatic winches should be equipped with oil misters and mufflers. Drum diameter
≥15d
JB/T2500-1997
4.8 The pneumatic motor housing casting of the geared pneumatic winch should be subjected to secondary annealing. 4.9 The height of the edge of the winch drum above the outermost wire rope should be no less than 2.5 times the diameter of the wire rope. 4.10 When the winch is working, the number of safe circles of the wire rope on the drum should be no less than 2 full circles. 4.11 The brake operation should be flexible and reliable, and the braking torque should be no less than 1.25 times the rated static torque. 4.12 The manual brake device of the winch should be able to self-lock during braking, and the pneumatically controlled winch should be in a braking state when it is out of air. 4.13 The operating force of the handle should not be greater than 156N, and the operating force of the foot should not be greater than 222N, and not less than 36N. 4.14 The travel of the two-way handle from the middle position should not exceed 300mm; the travel of the one-way handle should not exceed 600mm: the travel of the pedal should not exceed 250mm.
There should be no oil leakage and obvious air leakage at the seals of the winch. The contact area of ​​the brake belt should not be less than 70% of the effective contact area. 4.16
4.17 The working air pressure of the pneumatic motor is 0.414~0.69MPa4.18 The pneumatic motor should meet the following characteristics:
a) It can be forward and reverse stepless speed regulation;
b) It can withstand frequent impact loads:
c) It can automatically reduce the speed until it stops in case of short-term overload, and the internal heat is not generated: Once the overload is released, it can operate normally. 4.19 When the pneumatic motor is working, the temperature of the bearing seat and the lubricating oil should not exceed 75℃. 4.20 The piston ring and the oil ring are in the piston groove, and the opening angle is not less than 90°. 4.21 In normal operation, the average sound pressure level of the noise at 1m away from the outer contour of the product without silencer shall not exceed the provisions of Table 2. Table 2 Permissible noise value of winch
Rated pulling force of winch
Average sound pressure level
4.22 The exposed non-processed metal surface shall be painted, and the coating shall be uniform without defects such as bubbles, flow marks, wrinkles, and peeling. The exposed processed metal surface shall have an anti-rust layer, and the internal non-processed metal surface shall be painted with oil-resistant paint. 4.23 Scope of supply of complete sets:
a) The whole product with the control method specified in the contract; b) Necessary spare parts;
c) Random technical documents: instruction manual, product certificate, packing list. 4.24 Under normal working conditions, the service life of the product before the first overhaul: winch driven by piston pneumatic motor shall not be less than 1100h winch driven by gear pneumatic motor shall not be less than 2200h. 4.25 Under the condition that the user complies with the provisions of storage and maintenance, the manufacturer shall repair or replace parts for the user free of charge if the product is damaged or cannot work properly due to poor manufacturing within 12 months from the date of shipment or within 6 months from the date of use. 5 Test method
The fully assembled product shall be tested in accordance with JB/T6125 at the manufacturer. 5.1
JB/T2500-1997
5.2 The user shall install, debug and operate according to the instruction manual. 6 Inspection rules
6.1 Each product shall be inspected and qualified by the manufacturer before it can be shipped. 6.2 The factory inspection shall check whether each product meets 4.10, 4.11, 4.15, 4.22, 4.23 requirements, and perform rated load inspection. 6.3 Type inspection
6.3.1 Type test should be carried out in any of the following cases: a) Trial and identification of new products or transferred products; b) When there are major changes in structure, materials, and processes that affect product performance; c) Once every 5 years in normal production.
6.3.2 In addition to meeting the factory inspection requirements, products should also be checked for compliance with the provisions of 4.13, 4.14, 4.17, 4.19, and 4.21. 6.3.3 Measure the gas consumption rate of the product to see if it complies with the provisions of Table 1. 6.3.4 If the type inspection results do not meet the requirements of this standard, the doubled number of products should be re-inspected according to the same outline, and the re-inspection results shall be the final results.
7. Label, packaging, transportation and storage
7.1 Each product should have a product label fixed in a conspicuous position. Its type and size should comply with the requirements of GB/T13306 and indicate the following contents: a) Manufacturer name or trademark:
b) Product model and name:
c) Main technical parameters;
d) Factory number and manufacturing date.
7.2 After the product passes the inspection, the lubricating oil in the air motor must be discharged, and the packaging should be rainproof and moisture-proof. 7.3 The packaging of the product should meet the transportation requirements. 7.4 The accompanying documents should include the installation diagram, instruction manual, certificate of conformity and packing list, and should be sealed in a plastic bag and packed in a box. 5 The packaging, storage and transportation graphic labels of the product should comply with the provisions of GB191. 7.5
The product should be stored indoors.
Mechanical Industry Standard
Pneumatic Twist
JB/T2500—1997
Published and issued by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2 Shouti South Road, Beijing, Postal Code 100044)*
2Words 10000
Format 880X12301/16Printing Sheet 1/2
First Edition in July 1997First Printing in July 1997Price 500 Yuan
Print Quantity 1-500
97-088
Mechanical Industry Standard Service Network: http:/kvwwJB.ac.cn6007
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.