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 1 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 1: Complete machine
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 complete machine of shearer for the underground coal mining working face.
This part is applicable to the shearers 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 3836.1 Explosive atmospheres - Part 1: Equipment - General requirements
GB 3836.2 Explosive atmospheres - Part 2: Equipment protection by flameproof enclosures “d”
GB 3836.3 Explosive atmospheres - Part 3: Equipment protection by increased safety “e”
GB 3836.4 Explosive atmospheres - Part 4: Equipment protection by intrinsic safety “i”
GB/T 4026 Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals and conductor terminations
GB/T 6404.1-2005 Acceptance code for gear units - Part 1: Test code for airborne sound
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 13306 Plates
GB/T 13384-2008 General specifications for packing of mechanical and electrical product
GB/T 15663.10-2008 Terms relating to coal mining - Part 10: Winning machinery and developing machinery
GB/T 35060.2 General specification of shearer - Part 2: Cutting transmission unit
GB/T 35060.3 General specification of shearer - Part 3: Haulage driving unit
AQ 1043 Mining products safety label
JB/T 4262 Plastic-sheathed cable entry device for explosion proof electric apparatus
JB/T 8831 Methods for oil selection of industrial enclosed gears
MT/T 83 Drum shearer - Method of type symbolization
MT/T 84 Shearer - Types and basic parameters
MT 113 General test method and determination rules for flame retardancy and antistatic property of polymer products used in coal mines
MT/T 117 Cable protected clamp for shearer
MT 191 Specification for safety performance inspection of rubber pipes used in coal mines
MT/T 321 Helical drum for shearers
MT/T 459 Coal mining machine hydraulic fluid power - General technical conditions
MT 476 YBC series flameproof three phases asynchronous motor for cutting part of shearer
MT 818.2 Cables for coal mine - Part 2: Flexible cables for use with coal cutters of rated voltages up to and including 1.9/3.3kV
MT 818.3 Cables for coal mine - Part 3: Reinforced flexible cables with screen and monitoring cores for use with coal cutters of rated voltages up to and including 1.9/3.3kV
MT 818.4 Cables for coal mine - Part 4: Flexible cables with metallic screens for use with coal cutters of rated-voltages up to 1.9/3.3kV
MT 818.5 Cables for coal mine - Part 5: Movable flexible cables of rated voltage up to and including 0.66/1.14kV
MT/T 913 Hydraulic nuts and high-strength fastener for coal mining machinery
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 15663.10-2008 and the following apply.
3.1
cutting transmission unit
transmission unit for shearer cutting unit
3.2
haulage driving unit
general term for adjustable speed unit and transmission unit of shearer haulage unit
Note: It is a revision of Definition 2.6 in GB/T 15663.10-2008.
3.3
haulage speed
movement speed of shearer along the length direction of working face
Note: It is a revision of Definition 2.8 in GB/T 15663.10-2008.
3.4
working haulage speed
haulage speed at constant haulage force section in term of adjustable speed characteristics of shearer haulage driving unit
3.5
rated working haulage speed
maximum working haulage speed
3.6
transfer haulage speed
haulage speed at constant power (or equivalent to the constant power) section in term of adjustable speed characteristics of shearer haulage driving unit
3.7
rated transfer haulage speed
maximum transfer haulage speed
4 Requirements
4.1 General requirements
4.1.1 The shearer shall be manufactured and installed according to the drawings and technical documents approved by prescribed procedures.
4.1.2 The shearer shall run normally under the following ambient conditions:
a) explosive atmospheres such as gas and coal dust;
b) ambient temperature of 0℃~+40℃;
c) relative humidity of the ambient air of not more than 95% (at 25℃);
d) altitude of not higher than 1 000m.
Note: Shearers used beyond the above ambient conditions may be designed and used according to the agreement between the manufacturer and the user.
4.1.3 The type symbolization of shearers shall meet the requirements of MT/T 83.
4.1.4 The basic parameters of shearers shall meet the requirements of MT/T 84.
4.1.5 Raw materials used for manufacturing shearers shall meet the drawing requirements, and their chemical composition and mechanical properties shall meet the requirements of relevant national and professional standards.
4.1.6 The type, specification and performance of standard parts and procured parts shall meet the design requirements.
4.1.7 Parts processed according to the design drawings shall pass the inspection.
4.1.8 The display screen, display instrument, operation button and handle position of shearer shall facilitate the observation and safe operation.
4.1.9 The shearer shall be provided with the following safety measures:
a) equipped with locking device which may stop the running of working face scraper conveyor;
b) equipped with clutch device to isolate motor and cutting drum reliably;
c) equipped with disconnecting switch with which the power supply can be cut off manually;
d) equipped with emergency stop switch to cut off the power of the shearer in case of emergency;
e) equipped with on-board methane breaker or portable methane detection warning instrument;
f) equipped with start warning signal device;
g) equipped with water-cutoff protection device;
h) equipped with inner- and outer-water-spraying devices;
i) when the inclination angle of the working face is greater than 10°, anti-skid devices shall be set.
4.2 Overall assembly requirements
4.2.1 The electrical equipment shall meet the requirements of GB 3836.1 ~ GB 3836.4 and relevant standards, and shall have the “explosion-proof certificate” issued by the explosion-proof department approved and authorized by the state and the “mining products safety label certificate” issued by organization designated by the state.
4.2.2 The terminal identification of cables and wiring terminal shall meet the requirements of GB/T 4026.
4.2.3 The selection of hydraulic oils shall meet the requirements of GB 11118.1.
4.2.4 The cutting transmission unit shall meet the requirements of GB/T 35060.2.
4.2.5 The haulage driving unit shall meet the requirements of GB/T 35060.3.
4.2.6 The cutting (main) motor shall meet the requirements of MT/T 476.
4.2.7 The cable entry devices shall meet the requirements of JB/T 4262.
4.2.8 The selection of lubricating oil for enclosed gear transmission shall meet the requirements of JB/T 8831.
4.2.9 The polymer products adopted shall meet the requirements of MT 113.
4.2.10 The cable protected clamp of the cable handler shall meet the requirements of MT/T 117, and shall have the "mining products safety label certificate" issued by the organization designated by the state.
4.2.11 The rubber pipes shall meet the requirements of MT 191, and shall have the "mining products safety label certificate" issued by the organization designated by the state.
4.2.12 The helical drum for shearers shall meet the requirements of MT/T 321, and shall have the "mining products safety label certificate" issued by the organization designated by the state.
4.2.13 The flame retardant cables for coal mine shall meet the requirements of MT 818.2 ~ MT 818.5, and shall have the "mining products safety label certificate" issued by the organization designated by the state.
4.2.14 The hydraulic elements shall meet the requirements of MT/T 459.
4.2.15 The hydraulic nuts and their high-strength fasteners shall meet the requirements of MT/T 913.
4.2.16 Fasteners shall be tightened according to the order and torque specified in the design, and hydraulic nuts shall be tightened in the specified manner.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
6 Inspection rules
7 Marking, packaging, transportation and storage
Annex A (Normative) Industrial application test
Annex B (Normative) Judgment criteria for failure of gear teeth
