MT/T 588-1996 Technical requirements for explosion-proof diesel engine rubber-sleeved wheel/toothed rail vehicles for coal mines
Some standard content:
MT/T 588-1996
This standard is formulated in accordance with the "Safety Regulations for Coal Mines" and is equivalent to the "Safety Regulations for Coal Mines" in terms of technical content. When formulating this standard, the characteristics of the underground tunnel structure of my country's coal mines, the current situation of auxiliary transportation and the requirements for future development are combined, and it is as close to international standards as possible to meet the needs of the production and manufacturing of explosion-proof diesel engine rubber sleeve wheel/toothed rail car and the use of coal mines. Appendix A is a prompt appendix.
This standard is proposed by the Science and Technology Education Department of the Ministry of Coal Industry. This standard is under the jurisdiction of the Coal Mine Special Equipment Standardization Technical Committee. This standard is drafted by the Changzhou Research and Trial Production Center of the China Coal Research Institute. The main drafters of this standard are: Tang Yong, Chen Huanying, and Li Yi'e. This standard is entrusted to the Auxiliary Transportation Equipment Branch of the Coal Mine Special Equipment Standardization Technical Committee for interpretation. 45
1 Scope
Coal Industry Standard of the People's Republic of China
Technical Specifications for Explosion-proof Diesel Engine Rubber-sleeved Wheel/Rack-rail Carriages for Coal Mines
MT/T588—1996
This standard specifies the types, basic parameters, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage of explosion-proof diesel engine rubber-sleeved wheel/rack-rail cars.
This standard is applicable to explosion-proof diesel engine rubber-sleeved wheel/rack-rail cars used in various underground coal mines. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of the standard, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB3766—83 General technical conditions for hydraulic systems GB3836--83 Explosion-proof electrical equipment for explosive atmospheres MT113--1995 General test methods and judgment rules for flame retardancy and antistatic properties of polymer products used in underground coal mines "Safety Regulations for Coal Mines" formulated by the Ministry of Energy of the People's Republic of China in 1992 "Technical Inspection Specifications for Explosion-proof Diesel Locomotives for Coal Mines" (Trial) formulated by the Technology Development Corporation of the Ministry of Coal Industry of the People's Republic of China in 1985
3 Definitions
This standard adopts the following definitions:
3.1 Emergency braking unit Emergency braking unit is a braking device that automatically stops in the event of a working brake failure or an emergency in the locomotive (or train) or in an overspeed state. 3.2 Trapped unit
A wheel system device used to prevent vehicles from falling off the track. 3.3 Free time
The time from the start of the action of the control element of the brake mechanism to the start of the brake brake. 3.4 Standard rail
Ordinary rail for railways, commonly used specifications are: 22kg/m, 24kg/m, 30kg/m, 38kg/m. 4 Product classification
4.1 Type: Hydraulic transmission, hydraulic transmission or mechanical transmission rubber sleeve wheel rack railcar. Approved by the Ministry of Coal Industry of the People's Republic of China on December 3, 199646
Implementation on October 3, 1997
4.2 Model:
MT/T 588-1996
(Revision number)
1. Transmission type (supplementary characteristics)
Power (main parameter)
Rubber sleeve wheel/tooth rail (second characteristic)
Diesel engine (first characteristic)
Rail car (product type)
4.3 Basic parameters: See Table 1 for the items. The main technical parameters are determined by the manufacturer. Table 1
Diesel engine power, kw
Maximum adhesion traction, kN
Maximum rack traction, kN
Maximum operating speed, Km/h
Maximum gradeability: rubber-shrouded wheels, (°) rack, (\) Minimum turning radius: horizontal, m vertical, m Maximum braking force (static), kN
Track gauge, mm
Locomotive deadweight, t
Locomotive overall dimensions (length × height × width), mm
Main pump model
Hydraulic motor model
Maximum working pressure, M Pa
Rated working pressure, MPa
Fuel tank capacity, L
Hydraulic oil tank capacity, L
Generator: Model
Power, kw
Voltage, V
Diesel engine: Model
Rated power, kW
Rated speed, r/min
5 Technical requirements
Main technical parameters
5.1 General technical requirements
5.1.1 The railcar shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 5.1.2 The materials used for product parts shall comply with the requirements of the drawings. Only materials that have passed the acceptance test are allowed to be put into production. The non-metallic materials used47
MT/T 588-1996
should have flame retardant and antistatic properties and comply with the provisions of MT113. 5.1.3 The hydraulic system of the locomotive shall comply with the design and relevant requirements of GB3766. 5.1.4 All standard parts and purchased parts used in the product shall comply with the drawings and current and relevant technical conditions and regulations. And pass the inspection (or carry the inspection certificate of the manufacturer).
5.1.5 All electrical appliances shall comply with the requirements of GB3836, and the locomotive shall have a permit for going down the shaft. 5.1.6 Sharp edges and sharp angles that are easily touched by people and hands shall be blunted. 5.1.7 Lighting must be installed in the direction of locomotive operation to ensure that there is 21x illumination at 60m in front of the locomotive. A red light must be installed at the rear of the locomotive, and the visibility distance shall not be less than 60m.
5.1.8 The sound of the locomotive horn is greater than 105dB (A) 5.2 Locomotive performance requirements
5.2.1 Driver's cab:
5.2.1.1 The driver's cab door shall be equipped with a protective chain (rod). The front window of the driver's cab should have a wide field of vision and be able to clearly observe the signals and lines ahead. 5.2.1.2 The noise level at the driver's head position should not exceed 90dB (A) 5.2.1.3 Both the main and auxiliary driver's cabs of the locomotive can control and operate the locomotive. When one driver's cab controls and operates the locomotive, the control device of the other driver's cab should be automatically locked and the operation is invalid, but both driver's cabs can operate the safety brake device at the same time. The operating handle should have an automatic return to zero mechanism.
5.2.1.4 The driver's cab should be equipped with diesel engine monitoring protection, gas automatic detection alarm, power (oil) off device, hydraulic oil pressure gauge, cooling water temperature gauge and other indicating instruments.
5.2.1.5 There must be more than one portable fire extinguisher in the driver's cab, and it can be easily taken out from the vehicle for use. 5.2.2 Transmission system:
5.2.2.1 The gearbox should be run-in tested after assembly. a) The gear meshing contact spots shall not be less than 60% along the tooth length and not less than 45% along the tooth height; b) The gear transmission shall be smooth, without abnormal sound and vibration; c) Oil leakage is not allowed at the sealing of the gearbox joint surface. 5.2.2.2 The precision of the transmission system mating parts shall meet the design and use requirements. 5.2.2.3 The gearbox shall not have leakage and meet the process requirements. 5.2.2.4 The structural design and layout of each clutch and brake in the transmission system must be safe and reasonable, and the action must be accurate, sensitive and reliable. 5.2.3 Rubber sleeve wheel:
5.2.3.1 The tensile strength of the rubber sleeve wheel material shall be greater than 35MPa, and the friction coefficient shall be no less than 0.4. 5.2.3.2 The rubber sleeve wheel material shall be flame retardant and antistatic and shall comply with the provisions of MT113. 5.2.3.3 The surface of the rubber sleeve wheel shall be free of spots, bubbles, cracks and the bonding strength with metal shall be greater than 15MPa. 5.2.3.4 The structural design of the rubber sleeve wheel shall be convenient for loading and unloading. 5.2.4 Power unit:
5.2.4.1 The power unit of the locomotive is an explosion-proof low-pollution diesel engine. The surface temperature of any part shall not exceed 150℃. 5.2.4.2 The exhaust gas of the diesel engine must be cooled, and the exhaust temperature at its outlet shall not be greater than 70℃. 5.2.4.3 Within the rated power range of the diesel engine, the carbon dioxide (CO) in the undiluted engine exhaust should be less than 1000ppm, and the nitrogen oxide (NO) should be less than 800ppm. The exhaust outlet of the exhaust gas should be downward, and a dilution device should be used at the exhaust outlet to dilute the exhaust gas with more than 15 times the air.
5.2.4.4 Within the rated power range of the diesel engine, the temperature of the diesel engine water cooling system shall not exceed 95° when it works at full load for one hour. 5.2.4.5 Each component of the diesel engine intake and exhaust system must be subjected to a 0.8MPa water pressure test, and the pressure must be maintained for 3 to 5 minutes without leakage. 5.2.4.6 The diesel engine intake and exhaust system must be equipped with explosion-proof fences. The thickness of the fence plate should be no less than 1mm, and the width (along the intake or exhaust airflow direction) should be no less than 50mm. It must be made of corrosion-resistant and wear-resistant materials, and the gap between the fence plates should not be greater than 0.5mm, the explosion-proof surface size of the fence plate and its attached frame should be no less than 25mm, the effective width of all explosion-proof joints between the support frame parts and other parts of the intake and exhaust systems shall not be less than 13mm, and the flatness of the joint surface shall not exceed 0.15mm. 5.2.4.7 The fuel tank shall be able to withstand a 0.3MPa water pressure test. A refueling hole and a vent shall be set on the fuel tank. The vent shall have a mechanism to prevent fuel leakage when the tank is overturned. The fuel system shall be equipped with a stop valve and an oil level indicator. 5.2.5 Hydraulic system:
5.2.5.1 All hydraulic components shall be tested according to the test specifications of the components before they can be used. 5.2.5.2 All high and low pressure pipelines and joints of the hydraulic system shall be pressure tested at 1.5 times the rated working pressure for 5 minutes before assembly, and no leakage shall be allowed.
5.2.5.3 All parts should be free of burrs before assembly, and wiped with silk cloth after cleaning. Hydraulic steel pipes must be pickled, phosphated, and flushed with the working fluid used by the product. They can only be assembled after passing the test. 5.2.5.4 The hydraulic pipelines should be arranged neatly, and the hoses are not allowed to twist or make sharp turns. 5.2.5.5 The hydraulic oil tank must be equipped with an oil level indicator, and the oil temperature in the tank must not exceed 70°5.2.6 Braking system
5.2.6.1 The locomotive must be equipped with three sets of brake devices: working brake, parking brake and emergency brake. The emergency brake device must be both manually and automatically released.
5.2.6.2 The emergency brake device shall meet the following conditions: a) It can automatically apply the brake when the running speed exceeds the maximum rated speed of the locomotive by 15%; b) The idle time when the brake is applied shall not exceed 0.7s; c) When running downward at the maximum design speed on the maximum load and maximum slope, the braking distance shall not exceed the equivalent of 6s travel at this speed
d) When running upward at the minimum load and maximum slope, the braking deceleration shall not exceed 5m/s. 5.2.6.3 The static braking force of the emergency brake device shall not be less than 1.5 to 2 times the rated traction of the locomotive. 5.2.6.4 Under the rated load and rated operating speed, the braking distance of the working brake device shall meet the following requirements: a) When operating with adhesion drive, the braking distance for transporting goods shall not exceed 40m, and for transporting people shall not exceed 20m; b) When operating with rack drive, the braking distance shall not exceed 15m. 5.2.6.5 The emergency brake device shall be designed to be fail-safe. When the system pressure disappears, the system shall be in a braking state. 5.2.6.6 The connecting rods of the locomotive shall be made of low-carbon high-quality steel, and the breaking strength shall have a safety factor of not less than 13 when transporting people and not less than 10 when transporting goods. During the type test, a sampling pull-off test must be carried out, and those that do not meet the requirements shall not be used. 5.2.7 Electrical system:
5.2.7.1 All electrical equipment on the locomotive must be flameproof or intrinsically safe and comply with the relevant provisions of GB3836. 5.2.7.2 The cables or wires used shall be made of oil-resistant and flame-retardant materials that meet national standards. All wires must be fixed by appropriate methods.
5.2.8 Rack rail device and clamping rail system:
5.2.8.1 In order to ensure the normal and smooth transition between the locomotive adhesion operation and rack rail operation, a rack rail introduction device must be installed. 5.2.8.2 In order to ensure the normal meshing between the rack driving wheel and the rack on the locomotive, the meshing overlap between the rack driving wheel and the rack should be greater than 1.5 when the slope is less than 8°, and greater than 1.8 when the slope is not less than 8°. 5.2.8.3 The connection between the rack and the rack should be installed strictly according to the design requirements. 5.2.8.4 The track used for the locomotive should be ordinary steel rails of not less than 22kg/m. The laying quality of ordinary rails should meet the requirements of Article 328 of the "Coal Mine Safety Regulations".
5.2.8.5 The rail clamping device of the locomotive should be safe and reliable. For ordinary rails, guardrails should be installed on slopes greater than 10° to prevent the locomotive from falling off the track. 5.2.8.6 Rack rails must be laid on slopes greater than 5°. 5.2.9 Appearance quality requirements:
5.2.9.1 All non-matching surfaces shall be painted with anti-rust paint, and all exposed processing matching surfaces shall be painted with anti-rust grease. 5.2.9.2 After the locomotive is assembled, all inlets and outlets shall be tightly sealed with plastic plugs, and anti-rust primer and topcoat shall be sprayed according to the requirements of the drawings. The paint layer shall be uniform and coordinated, and there shall be no peeling or shedding. 6 Test methods
6.1 No-load commissioning and running test of the whole machine
MT/T 588—1996
a) The locomotive shall be erected with sleepers, the wheels shall be suspended in the air, and the locomotive shall be run for 2 hours. Observe the working condition of the locomotive, and whether the temperature rise, noise and movement meet the design requirements;
b) The locomotive shall be tested on the flat track of the test field for 60 minutes each in forward and backward directions under full equipment, and check whether the rotation direction and acceleration and deceleration of the wheels are consistent with the control handle; c) The locomotive shall enter and exit the rack section smoothly.
6.2 Traction force test
Use a dynamometer with a measurement accuracy of not less than ±1.0% to measure the locomotive adhesion drive traction and locomotive rack traction, and measure 3 times in the main and assistant cabs respectively.
6.3 Traction speed test
a) On a horizontal straight track, measure the maximum traction speed of the locomotive during adhesion drive, and operate 3 times in the main and assistant cabs respectively; b) Drive the rack on the rack and measure the maximum traction speed of the locomotive, and operate 3 times in the main and assistant cabs respectively. 6.4 Curve passing performance test
When the locomotive pulls the rated load and passes through the specified horizontal and vertical curves, it should ensure that the locomotive and the connected vehicles are reliably connected, the turning is flexible, and climbing or derailing is not allowed. 6.5 Climbing performance test
a) On the specified maximum slope of adhesion drive, the locomotive pulls the rated load and conducts a continuous uphill and downhill operation test for 4 hours, which should meet the design requirements;
b) On the specified maximum slope of rack drive, the locomotive pulls the rated load and conducts a continuous uphill and downhill operation test for 4 hours, which should meet the design requirements.
6.6 Braking performance test
6.6.1 Brake release sensitivity check.
6.6.2 Maximum static braking force test.
A dynamometer with a measurement accuracy of not less than ±1.0% is connected in series between the emergency brake device and the tensioning device to put the brake device in a braking state. The static braking force of the brake device is measured three times in a row, which should meet the requirements of 5.2.6.3 of this standard. 6.6.3 Speed limit test of centrifugal speed limiter. www.bzxz.net
On a special centrifugal speed limiter test bench, rotate the centrifugal speed limiter rotor. When the speed limiter is activated, record the action speed value and test it continuously for 5 times. The allowable error of the measured value is ±5% of the specified value. The test should comply with the provisions of a in 5.2.6.2. 6.6.4 Emergency brake device brake application idle time test. Use an idle tester, attach a metal contact to the release valve and the brake block to connect with the tester, release the brake with the release valve, and the time displayed by the tester is the idle time. The test should comply with the provisions of b in 5.2.6.2 of this standard. 6.6.5 Emergency brake device load release test. On the maximum slope, carry the maximum load on the safety brake device and slide down the slope to perform a landslide braking test. Take the average value of the three tests. The test results should comply with the provisions of a and c in 5.2.6.2 of this standard. 6.6.6 Locomotive working brake test.
a) The locomotive is driven on the maximum slope of adhesion, pulling the rated load and running downhill at the rated speed for working brake. The test shall comply with the provisions of a in 5.2.6.2 of this standard.
b) The locomotive is driven on the maximum slope of rack rail, pulling the rated load and running downhill at the rated speed for working brake. The test shall comply with the provisions of b in 5.2.6.4 of this standard.
6.7 Loading performance test
MT/T 588—1996
The power unit and power transmission unit of the locomotive run at full load for 2h. After the test, the power unit and power transmission unit shall meet the design requirements. All components are not allowed to be damaged, and the gears shall not have pitting, peeling, bonding, etc. 6.8 Carrying capacity test (ton-kilometer test) The locomotive pulls a load of more than 10t at a speed of about 2m/s and runs 300t.km on the test site. The locomotive should be fault-free and everything should be normal.
6.9 Noise test
When using a sound level meter with a measurement accuracy of not less than 2%, place the sound level meter above the driver's head in the cab, measure the maximum value of the noise of the locomotive under various working conditions, and the test should comply with the provisions of 5.2.1.2 of this standard. 6.10 Temperature rise test
The locomotive is continuously operated with heavy load until the thermal balance is measured. The oil temperature of the gearbox and hydraulic oil shall not be greater than 70°, and the cooling water temperature of the diesel engine shall not exceed 95°C.
6.11 Electrical safety protection test
It shall be carried out in accordance with the provisions of the "Technical Inspection Specifications for Explosion-proof Diesel Locomotives for Coal Mines" (Trial). 6.12 Explosion-proof and purification performance test
The explosion-proof testing center designated by the ministry shall conduct the test in accordance with the "Technical Inspection Specifications for Explosion-proof Diesel Locomotives for Coal Mines (Trial)". 6.13 Locomotive type test
In addition to the above factory performance test, a durability test shall also be conducted, and the main components shall run continuously for 500 hours under full load without failure. 7 Inspection rules
7.1 Locomotive inspection is divided into factory inspection and type inspection, and the inspection items are carried out according to Table 2. Table 2
Basic requirements
Appearance quality
Inspection items
(including three leaks: water leakage, oil leakage, air leakage)No-load operation
Load operation (ton-kilometer test)
Temperature rise test
Traction
Traction speed
Working brake
Parking brake
Emergency braking force
Emergency brake idle time
Automatic speed dispatching device
Braking distance: Emergency brake
Working brake
Braking deceleration
Technical requirements
5.1 and 5.2
Inspection method
According to drawings and technology
Document provisions
6.2.7 and 6.2.8
Inspection type
Inspection items
Passing performance curve
Entry and exit rack and rack section
Climbing performance rubber sleeve wheel
Rack wheel
Diesel engine explosion-proof purification performance
Explosion-proof performance of electrical components and systems
Signal and communication
Safety facilities such as fire prevention and automatic monitoring devices Noise
Strength of connecting rods and other connecting parts
Durability test
MT/T 588—1996
Table 2 (end)
Technical requirements
Note: In the table, "√" indicates mandatory inspection items; "" indicates no inspection items. Inspection method
Inspection type
Each locomotive shall undergo factory inspection. After passing the inspection, it can be shipped with product certificate and explosion-proof certificate attached. 7.2
7.3 Type inspection shall be carried out in the following cases. a) When new products are trial-produced or old products are transferred to the factory for production ; b) When the structure, material, or process of a formally produced product has a significant change that affects the product performance; c) When production is resumed after being suspended for more than 3 years; d) In normal production, it is conducted once every 5 years; e) When the national quality supervision agency requires type inspection. Type
7.4 If any of the inspection items in Table 2 fails, it is allowed to repeat the test and inspection after adjustment and overhaul. If it still fails, the product is judged to be unqualified.
7.5 The locomotive shall be There is a product certificate issued by the quality inspection department. 8 Marking, packaging, transportation, storage
8.1 Marking:
The locomotive should have a nameplate and an explosion-proof "EX" embossed mark fixed in a conspicuous position. The nameplate should have the following content: a) locomotive model and name;
b) main technical parameters;
c) factory serial number, factory date,
d) explosion-proof certificate number;
e) manufacturer name.
8 .2 Packaging:
8.2.1 The packaging of the locomotive should be waterproof and moisture-proof and meet the loading requirements of railway and road transportation. 8.2.2 The text and logo on the outside of the packaging box should be neat and clear, and the content is as follows: a) Receiving unit and address;
b) Product model and name;
c) Manufacturer's name and address,
d) Packing box dimensions: length × width × height; e) Packing gross weight, net weight;
f) Operation mark.
MT/T 588—1996
8.2.3 The technical documents randomly sent to the user should be packed in the same moisture-proof packaging bag and placed in the main box. The documents include: a) Product certificate (1 copy);
b) Product use and maintenance manual (1 copy); c) Packing list (1 copy);
d) User opinion solicitation letter (1 copy).
8.3 During transportation, the main parts of the locomotive shall not be inverted or placed sideways. All parts shall be waterproof and moisture-proof to ensure that the items are not damaged. During winter transportation, the media in all water tanks, oil tanks and all pipelines must be drained to prevent the equipment from freezing and cracking. 8.4 When the equipment is stored for a long time, it should be placed in a well-ventilated, dry place without corrosive gases. 53
MT/T588—1996
Appendix A
(Suggested Appendix)
References
Ministry of Coal Industry (85) Coal Technology No. 132 "Technical Inspection Specifications for Explosion-proof Diesel Locomotives for Coal Mines (Trial)" 543 During transportation, the main parts of the locomotive must not be inverted or placed sideways. All parts should be waterproof and moisture-proof to ensure that the items are not damaged. In winter transportation, the media in all water tanks, oil tanks and all pipelines must be drained to prevent the equipment from freezing and cracking. 8.4 When the equipment is stored for a long time, it should be placed in a well-ventilated, dry place without corrosive gases. 53
MT/T588—1996
Appendix A
(Suggested Appendix)
References
Ministry of Coal Industry (85) Coal Technology No. 132 "Technical Inspection Specifications for Explosion-proof Diesel Locomotives for Coal Mines (Trial)" 543 During transportation, the main parts of the locomotive must not be inverted or placed sideways. All parts should be waterproof and moisture-proof to ensure that the items are not damaged. In winter transportation, the media in all water tanks, oil tanks and all pipelines must be drained to prevent the equipment from freezing and cracking. 8.4 When the equipment is stored for a long time, it should be placed in a well-ventilated, dry place without corrosive gases. 53
MT/T588—1996
Appendix A
(Suggested Appendix)
References
Ministry of Coal Industry (85) Coal Technology No. 132 "Technical Inspection Specifications for Explosion-proof Diesel Locomotives for Coal Mines (Trial)" 54
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