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Position: Chinese Standard in English/GB/T 35060.2-2018
GB/T 35060.2-2018   General specification of shearer--Part 2: Cutting transmission unit (English Version)
Standard No.: GB/T 35060.2-2018 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 5500 words Price(USD):120.0 remind me the price change

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Implemented on:2018-12-1 Delivery: via email in 1 business day
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Standard No.: GB/T 35060.2-2018
English Name: General specification of shearer--Part 2: Cutting transmission unit
Chinese Name: 滚筒采煤机通用技术条件 第2部分:截割传动装置
Chinese Classification: D98    Coal mine special equipment
Professional Classification: GB    National Standard
ICS Classification: 73.100.99 73.100.99    Other mining equipment 73.100.99
Issued by: SAIC AND SAC
Issued on: 2018-05-14
Implemented on: 2018-12-1
Status: valid
Language: English
File Format: PDF
Word Count: 5500 words
Price(USD): 120.0
Delivery: via email in 1 business day
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. GB/T 35060 consists of the following four parts under the general title General specification of shearer: ——Part 1: Complete machine; ——Part 2: Cutting transmission unit; ——Part 3: Haulage driving unit; ——Part 4: Electric control system. This part is Part 2 of GB/T 35060. This part is developed in accordance with the rules given in GB/T 1.1-2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights. This part was proposed by and is under the jurisdiction of China Coal Industry Association. General specification of shearer - Part 2: Cutting transmission unit 1 Scope This part of GB/T 35060 specifies the requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage of the cutting transmission unit of shearer for the underground coal mining working face. This part is applicable to the cutting transmission unit of shearer used by longwall mining (hereinafter referred to as “shearer”). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 3480.5 Calculation of load capacity of spur and helical gears - Part 5: Strength and quality of materials GB/T 7233.1-2009 Steel castings - Ultrasonic examination - Part 1: Steel castings for general purposes GB/T 9450 Steels - Determination and verification of the depth of carburized and hardened cases GB/T 10111 Generation of random numbers and procedures applied to sampling inspection for product quality GB/T 11352-2009 Carbon steel castings for general engineering purpose GB/T 11354 Determination of nitrided case depth and metallographic microstructure examination for steel and iron parts GB/T 11365 Accuracy of bevel and hypoid gears GB/T 13306 Plates GB/T 13384 General specifications for packing of mechanical and electrical product GB/T 13924 Inspection code for accuracy of involute cylindrical gears GB/T 35060.1 General specification of shearer - Part 1: Complete machine JB/T 5000.10 Heavy mechanical general techniques and standards - Part 10: Assembly JB/T 5943 Construction machinery - General specifications for welding parts JB/T 8831 Methods for oil selection of industrial enclosed gears JB/T 9172 Gear nitriding and nitrocarburizing process and its quality control MT/T 784 DO type floating seals for winning machinery 3 Requirements 3.1 General requirements 3.1.1 The cutting transmission unit shall be manufactured according to the drawings and technical documents approved by prescribed procedures. 3.1.2 Raw materials used for manufacturing the cutting transmission unit shall meet the drawing requirements. 3.1.3 The model, specification and performance of standard parts and procured parts shall meet the design requirements. 3.1.4 Parts processed according to the design drawings shall pass the inspection. 3.2 Assembling requirements 3.2.1 The assembling shall meet the requirements of JB/T 5000.10. 3.2.2 The shell shall meet the following requirements: a) the quality grade of steel castings meets the requirements of Grade II quality criteria specified in GB/T 7233.1-2009, Clause 5; b) the surface quality of steel castings meets the requirements of GB/T 11352-2009, 4.5; c) the quality of welding parts meets the requirements of JB/T 5943; d) there is no viscous sand, welding slag, scrap iron, oil stain and other foreign matters in the shell; e) the pressure-bearing shell and waterway pipeline are free from leakage after subjecting to the pressure test at a pressure that is 1.5 times of the rated pressure for 5min; f) the shell used as oil tank shall not leak before assembly; g) rust-proof treatment shall be carried out for the shell. 3.2.3 The gear shall meet the following requirements: a) the gear materials and heat treatment quality shall be inspected according to GB/T 3480.5, GB/T 9450, GB/T 11354 and JB/T 9172; b) the accuracy of involute cylindrical gears shall be inspected according to GB/T 13924; c) the accuracy of bevel gears shall be inspected according to GB/T 11365; d) the gear surface hardness, effective hardened layer depth, metallographic structure and machining accuracy shall meet the requirements of product technical documents. 3.2.4 The axial clearance of axle groups shall meet the requirements of product drawing documents. 3.2.5 The adopted DO type floating seals shall meet the requirements of MT/T 784. 3.2.6 All parts shall be cleaned and washed before assembly. 3.2.7 The selection of lubricating oil shall meet the requirements of JB/T 8831. 3.2.8 Fasteners shall be tightened according to specified torque. 3.3 Appearance requirements The outer surface of the cutting transmission unit shall be smooth and free of sharp edges, flashes, burrs, cracks and other defects, and shall be sprayed (coated) with anti-rust primer according to the drawing requirements. The paint surface shall be uniform in thickness and firm in combination without peeling and falling off. 3.4 Performance requirements 3.4.1 Operation of clutch mechanism The clutch mechanism shall be flexible in operation, full in stroke and reliable in action. 3.4.2 No-load running The no-load running shall meet the following requirements: a) operating stably without abnormal vibration, noise and temperature rise; b) no leakage at each joint surface and seal; c) no fastener looseness on each connection surface; d) the turning direction of the output shaft meets the design requirements; e) the output shaft speed meets the requirements of design (technical documents for supply). 3.4.3 Temperature rise After continuous and stable running according to the test method specified in 4.2.4, there shall be no leakage at each joint seal, the maximum oil temperature in oil tank shall not exceed 100℃, and the maximum temperature rise shall not exceed 75K. 3.4.4 Overload After loading at 125% of the rated power of the cutting (main) motor for 10min, the operation shall be stable, without violent vibration, abnormal noise and temperature rise. 3.5 Mass The mass shall meet the design requirements, with an error not exceeding ±5%. 4 Test methods 4.1 Appearance inspection Visual inspection. 4.2 Performance test 4.2.1 Test conditions Install the cutting transmission unit on a test stand to close to the horizontal position. Inject oil into the oil tank according to the specified oil quality and level, and supply power and cooling water according to the design requirements (the water inlet temperature is not lower than 10℃). The turning direction of the output shaft shall comply with the technical documents. Note: The “twin trawling test method” is allowed to be adopted, i.e. the output shafts of the left and right cutting transmission units of the twin-drum shearer are connected by couplings, the input shaft of the cutting transmission unit serving as the tested piece is connected with the cutting (main) motor or the test strand drive motor and the other cutting transmission unit serving as a companion test piece is in a speed- accelerating running state, and its input shaft end is connected with a test stand loading device. For the single-drum shearer, two cutting transmission units of the same model may be connected in the same way. The twin trawling test method may also be used to compensate for the loss of power in the mechanical closed test strand. 4.2.2 Test for operation of clutch mechanism Operate the clutch mechanism for separation and reunion for 5 times. 4.2.3 No-load running test After the cutting transmission unit operates without load continuously for 120min, observe the operation situation and leakage at each seal, and measure and record the temperature rise. 4.2.4 Temperature rise test Operate the cutting transmission unit with load continuously at 50% of the rated power of cutting (main) motor for 60min, 75% of the rated power of cutting (main) motor for 60min, and 100% of the rated power of cutting (main) motor for 30min. In the process of operation, observe the operation situation and leakage at each seal, measure and record the oil temperature in oil tank and the ambient temperature. 4.2.5 Overload test After the temperature rise test, load at 125% of the rated power of cutting (main) motor continuously for 10min. 4.3 Mass Measure by conventional weighing method. 5 Inspection rules 5.1 Inspection classification The inspection is classified into end-of-manufacturing inspection and type inspection. 5.2 End-of-manufacturing inspection 5.2.1 The cutting transmission units shall be subjected to end-of-manufacturing inspection one by one. 5.2.2 For the end-of-manufacturing inspection items, see Table 1. 5.2.3 If all the end-of-manufacturing inspection items are acceptable, the cutting transmission unit is regarded as passing the end-of-manufacturing inspection. If there is rejected item, the transmission unit is allowed to be repaired or readjusted for re-inspection. If the re-inspection result is acceptable, the inspection item is judged as acceptable.
Foreword i 1 Scope 2 Normative references 3 Requirements 4 Test methods 5 Inspection rules 6 Marking, packaging, transportation and storage
Referred in GB/T 35060.2-2018:
*GB/T 3480.5-2021 Calculation of load capacity of spur and helical gears—Part 5:Strength and quality of materials
*GB/T 7233.1-2009 Steel castings—Ultrasonic examination—Part 1:Steel castings for general purposes
*GB/T 9450-2005 Steels—Determination and verification of the depth of carburized and hardened cases
*GB/T 10111-2008 Generation of random numbers and procedures applied to sampling inspection for product quality
*GB/T 11352-2009 Carbon steel castings for general engineering purpose
*GB/T 11354-2005 Determination of nitrided case depth and metallographic microstructure examination for steel and iron parts
*GB/T 11365-2019 Bevel gears—ISO system of accuracy
*GB/T 13306-2011 Plate
*GB/T 13384-2008 General specifications for packing of mechanical and electrical product
*GB/T 13924-2008 Inspection code for accuracy of involute cylindrical gears
*GB/T 35060.1-2018 General specification of shearer--Part 1: Complete machine
*JB/T 5000.10-2007 Heavy Machinery General Technical Conditions --Part 10: Assembly
*JB/T 5943-2018
*JB/T 8831-2001 Methods for oil selection of industrial enclosed gears
*JB/T 9172-1999 Gear nitriding and nitrocaburizing process and its quality control
*MT/T 784-2011 DO type floting seals for winning machinery
GB/T 35060.2-2018 is referred in:
*GB/T 35060.1-2018 General specification of shearer--Part 1: Complete machine
*Q/BQB 518-2018 Wire rod used for steel fibre
Code of China
Standard
GB/T 35060.2-2018  General specification of shearer--Part 2: Cutting transmission unit (English Version)
Standard No.GB/T 35060.2-2018
Statusvalid
LanguageEnglish
File FormatPDF
Word Count5500 words
Price(USD)120.0
Implemented on2018-12-1
Deliveryvia email in 1 business day
Detail of GB/T 35060.2-2018
Standard No.
GB/T 35060.2-2018
English Name
General specification of shearer--Part 2: Cutting transmission unit
Chinese Name
滚筒采煤机通用技术条件 第2部分:截割传动装置
Chinese Classification
D98
Professional Classification
GB
ICS Classification
Issued by
SAIC AND SAC
Issued on
2018-05-14
Implemented on
2018-12-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
5500 words
Price(USD)
120.0
Keywords
GB/T 35060.2-2018, GB 35060.2-2018, GBT 35060.2-2018, GB/T35060.2-2018, GB/T 35060.2, GB/T35060.2, GB35060.2-2018, GB 35060.2, GB35060.2, GBT35060.2-2018, GBT 35060.2, GBT35060.2
Introduction of GB/T 35060.2-2018
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. GB/T 35060 consists of the following four parts under the general title General specification of shearer: ——Part 1: Complete machine; ——Part 2: Cutting transmission unit; ——Part 3: Haulage driving unit; ——Part 4: Electric control system. This part is Part 2 of GB/T 35060. This part is developed in accordance with the rules given in GB/T 1.1-2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights. This part was proposed by and is under the jurisdiction of China Coal Industry Association. General specification of shearer - Part 2: Cutting transmission unit 1 Scope This part of GB/T 35060 specifies the requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage of the cutting transmission unit of shearer for the underground coal mining working face. This part is applicable to the cutting transmission unit of shearer used by longwall mining (hereinafter referred to as “shearer”). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 3480.5 Calculation of load capacity of spur and helical gears - Part 5: Strength and quality of materials GB/T 7233.1-2009 Steel castings - Ultrasonic examination - Part 1: Steel castings for general purposes GB/T 9450 Steels - Determination and verification of the depth of carburized and hardened cases GB/T 10111 Generation of random numbers and procedures applied to sampling inspection for product quality GB/T 11352-2009 Carbon steel castings for general engineering purpose GB/T 11354 Determination of nitrided case depth and metallographic microstructure examination for steel and iron parts GB/T 11365 Accuracy of bevel and hypoid gears GB/T 13306 Plates GB/T 13384 General specifications for packing of mechanical and electrical product GB/T 13924 Inspection code for accuracy of involute cylindrical gears GB/T 35060.1 General specification of shearer - Part 1: Complete machine JB/T 5000.10 Heavy mechanical general techniques and standards - Part 10: Assembly JB/T 5943 Construction machinery - General specifications for welding parts JB/T 8831 Methods for oil selection of industrial enclosed gears JB/T 9172 Gear nitriding and nitrocarburizing process and its quality control MT/T 784 DO type floating seals for winning machinery 3 Requirements 3.1 General requirements 3.1.1 The cutting transmission unit shall be manufactured according to the drawings and technical documents approved by prescribed procedures. 3.1.2 Raw materials used for manufacturing the cutting transmission unit shall meet the drawing requirements. 3.1.3 The model, specification and performance of standard parts and procured parts shall meet the design requirements. 3.1.4 Parts processed according to the design drawings shall pass the inspection. 3.2 Assembling requirements 3.2.1 The assembling shall meet the requirements of JB/T 5000.10. 3.2.2 The shell shall meet the following requirements: a) the quality grade of steel castings meets the requirements of Grade II quality criteria specified in GB/T 7233.1-2009, Clause 5; b) the surface quality of steel castings meets the requirements of GB/T 11352-2009, 4.5; c) the quality of welding parts meets the requirements of JB/T 5943; d) there is no viscous sand, welding slag, scrap iron, oil stain and other foreign matters in the shell; e) the pressure-bearing shell and waterway pipeline are free from leakage after subjecting to the pressure test at a pressure that is 1.5 times of the rated pressure for 5min; f) the shell used as oil tank shall not leak before assembly; g) rust-proof treatment shall be carried out for the shell. 3.2.3 The gear shall meet the following requirements: a) the gear materials and heat treatment quality shall be inspected according to GB/T 3480.5, GB/T 9450, GB/T 11354 and JB/T 9172; b) the accuracy of involute cylindrical gears shall be inspected according to GB/T 13924; c) the accuracy of bevel gears shall be inspected according to GB/T 11365; d) the gear surface hardness, effective hardened layer depth, metallographic structure and machining accuracy shall meet the requirements of product technical documents. 3.2.4 The axial clearance of axle groups shall meet the requirements of product drawing documents. 3.2.5 The adopted DO type floating seals shall meet the requirements of MT/T 784. 3.2.6 All parts shall be cleaned and washed before assembly. 3.2.7 The selection of lubricating oil shall meet the requirements of JB/T 8831. 3.2.8 Fasteners shall be tightened according to specified torque. 3.3 Appearance requirements The outer surface of the cutting transmission unit shall be smooth and free of sharp edges, flashes, burrs, cracks and other defects, and shall be sprayed (coated) with anti-rust primer according to the drawing requirements. The paint surface shall be uniform in thickness and firm in combination without peeling and falling off. 3.4 Performance requirements 3.4.1 Operation of clutch mechanism The clutch mechanism shall be flexible in operation, full in stroke and reliable in action. 3.4.2 No-load running The no-load running shall meet the following requirements: a) operating stably without abnormal vibration, noise and temperature rise; b) no leakage at each joint surface and seal; c) no fastener looseness on each connection surface; d) the turning direction of the output shaft meets the design requirements; e) the output shaft speed meets the requirements of design (technical documents for supply). 3.4.3 Temperature rise After continuous and stable running according to the test method specified in 4.2.4, there shall be no leakage at each joint seal, the maximum oil temperature in oil tank shall not exceed 100℃, and the maximum temperature rise shall not exceed 75K. 3.4.4 Overload After loading at 125% of the rated power of the cutting (main) motor for 10min, the operation shall be stable, without violent vibration, abnormal noise and temperature rise. 3.5 Mass The mass shall meet the design requirements, with an error not exceeding ±5%. 4 Test methods 4.1 Appearance inspection Visual inspection. 4.2 Performance test 4.2.1 Test conditions Install the cutting transmission unit on a test stand to close to the horizontal position. Inject oil into the oil tank according to the specified oil quality and level, and supply power and cooling water according to the design requirements (the water inlet temperature is not lower than 10℃). The turning direction of the output shaft shall comply with the technical documents. Note: The “twin trawling test method” is allowed to be adopted, i.e. the output shafts of the left and right cutting transmission units of the twin-drum shearer are connected by couplings, the input shaft of the cutting transmission unit serving as the tested piece is connected with the cutting (main) motor or the test strand drive motor and the other cutting transmission unit serving as a companion test piece is in a speed- accelerating running state, and its input shaft end is connected with a test stand loading device. For the single-drum shearer, two cutting transmission units of the same model may be connected in the same way. The twin trawling test method may also be used to compensate for the loss of power in the mechanical closed test strand. 4.2.2 Test for operation of clutch mechanism Operate the clutch mechanism for separation and reunion for 5 times. 4.2.3 No-load running test After the cutting transmission unit operates without load continuously for 120min, observe the operation situation and leakage at each seal, and measure and record the temperature rise. 4.2.4 Temperature rise test Operate the cutting transmission unit with load continuously at 50% of the rated power of cutting (main) motor for 60min, 75% of the rated power of cutting (main) motor for 60min, and 100% of the rated power of cutting (main) motor for 30min. In the process of operation, observe the operation situation and leakage at each seal, measure and record the oil temperature in oil tank and the ambient temperature. 4.2.5 Overload test After the temperature rise test, load at 125% of the rated power of cutting (main) motor continuously for 10min. 4.3 Mass Measure by conventional weighing method. 5 Inspection rules 5.1 Inspection classification The inspection is classified into end-of-manufacturing inspection and type inspection. 5.2 End-of-manufacturing inspection 5.2.1 The cutting transmission units shall be subjected to end-of-manufacturing inspection one by one. 5.2.2 For the end-of-manufacturing inspection items, see Table 1. 5.2.3 If all the end-of-manufacturing inspection items are acceptable, the cutting transmission unit is regarded as passing the end-of-manufacturing inspection. If there is rejected item, the transmission unit is allowed to be repaired or readjusted for re-inspection. If the re-inspection result is acceptable, the inspection item is judged as acceptable.
Contents of GB/T 35060.2-2018
Foreword i 1 Scope 2 Normative references 3 Requirements 4 Test methods 5 Inspection rules 6 Marking, packaging, transportation and storage
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Keywords:
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