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 is Part 3 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 3: Haulage driving unit
1 Scope
This part of GB/T 35060 specifies the types and composition, requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage of the haulage driving unit of shear (excluding the open gear transmission part) for the underground coal mining working face.
This part is applicable to the use of electrical speed-adjustable haulage driving unit or hydraulic adjustable speed of the shearer (hereinafter referred to as “shearer”) by longwall mining.
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 3766 Hydraulic fluid power - General rules and safety requirements for systems and their components
GB/T 7233.1-2009 Steel castings - Ultrasonic examination - Part 1: Steel castings for general purposes
GB/T 7935 Hydraulic fluid power - General requirements for hydraulic components
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 11118.1 Hydraulic fluids of L-HL, L-HM, L-HV, L-HS and L-HG type
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 1041.1 Specification for adjustable speed electrical equipment of shearer - Part 1: General specification
MT/T 1041.2 Specification for adjustable speed electrical equipment of shearer - Part 2: Speed-adjustable equipment by variable voltage variable frequency
MT/T 1041.3 Specification for adjustable speed electrical equipment of shearer - Part 3: Speed-adjustable equipment by electromagnetism
MT/T 1041.4 Specification for adjustable speed electrical equipment of shearer - Part 4: Switched reluctance drive
MT 1149 Brake for shearer - Specification
3 Types and composition
3.1 Types
The haulage driving unit may be divided into electrical speed-adjustable haulage driving unit and hydraulic speed-adjustable haulage driving unit according to the speed adjustment mode.
3.2 Composition
The haulage driving unit is composed of haulage adjustable speed unit (hereinafter referred to as adjustable speed unit) and haulage transmission unit (hereinafter referred to as transmission unit). In case of electrical adjustable speed mode, the adjustable speed unit and the transmission unit are two independent components; in case of hydraulic adjustable speed, the transmission unit is divided into a front transmission box (in front of the hydraulic pump) and a rear transmission box (behind the hydraulic motor). The adjustable speed unit and the transmission unit are generally combined in a box, and the rear transmission box may also be an independent component.
4 Electrical speed-adjustable haulage driving unit
4.1 Electrical adjustable speed unit
4.1.1 The electrical adjustable speed unit shall meet the requirements of MT/T 1041.1.
4.1.2 The adjustable speed unit by variable voltage variable frequency shall meet the requirements of MT/T 1041.2.
4.1.3 The adjustable speed unit by electromagnetism shall meet the requirements of MT/T 1041.3.
4.1.4 The switched reluctance drive shall meet the requirements of MT/T 1041.4.
4.1.5 The electrical adjustable speed unit passed the inspection that is carried out according to the above criteria may be directly involved in the assembly of the complete shearer machine.
4.2 Transmission unit
4.2.1 Requirements
4.2.1.1 General requirements
4.2.1.1.1 The transmission unit shall be manufactured according to the drawings and technical documents approved by prescribed procedures.
4.2.1.1.2 Raw materials used for manufacturing the transmission unit shall meet the drawing requirements, and their chemical composition and mechanical properties shall meet the requirements of relevant national and professional standards.
4.2.1.1.3 The model, specification and performance of standard parts and procured parts shall meet the design requirements.
4.2.1.1.4 Parts processed according to the design drawings shall pass the inspection.
4.2.1.2 Assembling requirements
4.2.1.2.1 The assembling shall meet the requirements of JB/T 5000.10.
4.2.1.2.2 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.
4.2.1.2.3 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.
4.2.1.2.4 The axial clearance of axle groups shall meet the requirements of product drawing documents.
4.2.1.2.5 All parts shall be cleaned and washed before assembly.
4.2.1.2.6 The brake in a transmission unit shall meet the requirements of MT 1149.
4.2.1.2.7 The selection of gear lubricating oil shall meet the requirements of JB/T 8831.
4.2.1.2.8 Fasteners shall be tightened according to specified torque.
4.2.1.3 Appearance requirements
4.2.1.3.1 The outer surface of the 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.
4.2.1.3.2 All pipelines shall be arranged neatly and reasonably and fixed firmly.
4.2.1.4 Performance requirements
4.2.1.4.1 No-load running
The no-load running shall meet the following requirements:
a) running stably in two directions without abnormal vibration, noise and temperature rise;
b) no leakage at each joint surface and seal;
c) no fastener looseness on each connection surface.
4.2.1.4.2 Temperature rise
Load operation is proceeded continuously according to the test method specified in 4.2.2.2.3. The operation shall be stable, and there shall be no leakage at each joint seal. The maximum temperature in the transmission gearbox oil tank shall not exceed 95℃, and the maximum temperature rise shall not exceed 70K.
Foreword i
1 Scope
2 Normative references
3 Types and composition
4 Electrical speed-adjustable haulage driving unit
5 Hydraulic speed-adjustable haulage driving unit
6 Marking, packaging, transportation and storage
Annex A (Normative) Conversion between the haulage speed and the haulage force
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 is Part 3 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 3: Haulage driving unit
1 Scope
This part of GB/T 35060 specifies the types and composition, requirements, test methods, inspection rules, as well as marking, packaging, transportation and storage of the haulage driving unit of shear (excluding the open gear transmission part) for the underground coal mining working face.
This part is applicable to the use of electrical speed-adjustable haulage driving unit or hydraulic adjustable speed of the shearer (hereinafter referred to as “shearer”) by longwall mining.
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 3766 Hydraulic fluid power - General rules and safety requirements for systems and their components
GB/T 7233.1-2009 Steel castings - Ultrasonic examination - Part 1: Steel castings for general purposes
GB/T 7935 Hydraulic fluid power - General requirements for hydraulic components
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 11118.1 Hydraulic fluids of L-HL, L-HM, L-HV, L-HS and L-HG type
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 1041.1 Specification for adjustable speed electrical equipment of shearer - Part 1: General specification
MT/T 1041.2 Specification for adjustable speed electrical equipment of shearer - Part 2: Speed-adjustable equipment by variable voltage variable frequency
MT/T 1041.3 Specification for adjustable speed electrical equipment of shearer - Part 3: Speed-adjustable equipment by electromagnetism
MT/T 1041.4 Specification for adjustable speed electrical equipment of shearer - Part 4: Switched reluctance drive
MT 1149 Brake for shearer - Specification
3 Types and composition
3.1 Types
The haulage driving unit may be divided into electrical speed-adjustable haulage driving unit and hydraulic speed-adjustable haulage driving unit according to the speed adjustment mode.
3.2 Composition
The haulage driving unit is composed of haulage adjustable speed unit (hereinafter referred to as adjustable speed unit) and haulage transmission unit (hereinafter referred to as transmission unit). In case of electrical adjustable speed mode, the adjustable speed unit and the transmission unit are two independent components; in case of hydraulic adjustable speed, the transmission unit is divided into a front transmission box (in front of the hydraulic pump) and a rear transmission box (behind the hydraulic motor). The adjustable speed unit and the transmission unit are generally combined in a box, and the rear transmission box may also be an independent component.
4 Electrical speed-adjustable haulage driving unit
4.1 Electrical adjustable speed unit
4.1.1 The electrical adjustable speed unit shall meet the requirements of MT/T 1041.1.
4.1.2 The adjustable speed unit by variable voltage variable frequency shall meet the requirements of MT/T 1041.2.
4.1.3 The adjustable speed unit by electromagnetism shall meet the requirements of MT/T 1041.3.
4.1.4 The switched reluctance drive shall meet the requirements of MT/T 1041.4.
4.1.5 The electrical adjustable speed unit passed the inspection that is carried out according to the above criteria may be directly involved in the assembly of the complete shearer machine.
4.2 Transmission unit
4.2.1 Requirements
4.2.1.1 General requirements
4.2.1.1.1 The transmission unit shall be manufactured according to the drawings and technical documents approved by prescribed procedures.
4.2.1.1.2 Raw materials used for manufacturing the transmission unit shall meet the drawing requirements, and their chemical composition and mechanical properties shall meet the requirements of relevant national and professional standards.
4.2.1.1.3 The model, specification and performance of standard parts and procured parts shall meet the design requirements.
4.2.1.1.4 Parts processed according to the design drawings shall pass the inspection.
4.2.1.2 Assembling requirements
4.2.1.2.1 The assembling shall meet the requirements of JB/T 5000.10.
4.2.1.2.2 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.
4.2.1.2.3 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.
4.2.1.2.4 The axial clearance of axle groups shall meet the requirements of product drawing documents.
4.2.1.2.5 All parts shall be cleaned and washed before assembly.
4.2.1.2.6 The brake in a transmission unit shall meet the requirements of MT 1149.
4.2.1.2.7 The selection of gear lubricating oil shall meet the requirements of JB/T 8831.
4.2.1.2.8 Fasteners shall be tightened according to specified torque.
4.2.1.3 Appearance requirements
4.2.1.3.1 The outer surface of the 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.
4.2.1.3.2 All pipelines shall be arranged neatly and reasonably and fixed firmly.
4.2.1.4 Performance requirements
4.2.1.4.1 No-load running
The no-load running shall meet the following requirements:
a) running stably in two directions without abnormal vibration, noise and temperature rise;
b) no leakage at each joint surface and seal;
c) no fastener looseness on each connection surface.
4.2.1.4.2 Temperature rise
Load operation is proceeded continuously according to the test method specified in 4.2.2.2.3. The operation shall be stable, and there shall be no leakage at each joint seal. The maximum temperature in the transmission gearbox oil tank shall not exceed 95℃, and the maximum temperature rise shall not exceed 70K.
Contents of GB/T 35060.3-2018
Foreword i
1 Scope
2 Normative references
3 Types and composition
4 Electrical speed-adjustable haulage driving unit
5 Hydraulic speed-adjustable haulage driving unit
6 Marking, packaging, transportation and storage
Annex A (Normative) Conversion between the haulage speed and the haulage force
