GB 21011-2007 PDF EnglishUS$209.00 · In stock · Download in 9 seconds
GB 21011-2007: Mine man-riding cars with narrow gauge -- Safety requirements Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB 21011-2007: Mine man-riding cars with narrow gauge -- Safety requirements---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB21011-2007Mine manriding cars with narrow gauge.Safety requirements ICS 73.100.40 D93 National Standards of People's Republic of China Mine man safety requirements Released on.2007-07-19 2008-01-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration issued ForewordThe full technical content of this standard is mandatory. This standard deals with the safety of mining vehicles. The hazards not covered by this standard are consistent with GB/T 15706.1 and GB/T 15706.2. About general mechanical, electrical, hydraulic, and pneumatic The hazards of movement and other equipment are not included in this standard. This standard shall be abolished from the date of implementation of the original JB8913-1999 "Safety Requirements for Mining Manned Vehicles". This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Mining Machinery Standardization Technical Committee (SAC/TC88). This standard is drafted by. Luoyang Mining Machinery Engineering Design and Research Institute. Participated in the drafting of this standard. Henan Polytechnic University. The main drafters of this standard. Guo Ming, Zou Shengyong, Yang Xianli, Qi Xinmin, Huang Jialin, Wang Yadong. Mine man safety requirements1 ScopeThis standard specifies the safety requirements for mining vehicles. This standard is a limit imposed on mining vehicles from physical properties and intended use. system. The safety requirements specified in this standard apply to the hazards arising from the various stages of the life of the machine. This standard applies to mine narrow-gauge transport vehicles, including flat lanes and inclined wells (hereinafter referred to as people's vehicles).2 Normative referencesThe terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard. GB/T 1239.4 hot coil cylindrical coil spring technical conditions GB/T 4695 narrow-gauge locomotive vehicle wheel tread shape and size GB 9969.1 General instructions for the use of industrial products GB/T 13306 signage GB/T 15706.1 General principles and design principles of mechanical safety - Part 1. Basic terms and methods (GB/T 15706.1- 2007, ISO 12100-1.2003, IDT) GB/T 15706.2 General principles and design principles of mechanical safety - Part 2. Technical principles (GB/T 15706.2-2007, ISO 12100-2.2003, IDT) GB/T 15822.1 Non-destructive testing - Magnetic particle testing - Part 1. General (GB/T 15822.1-2005, ISO 9934-1.2001, IDT) GB/T 15822.2 Non-destructive testing - Magnetic particle testing - Part 2. Test medium (GB/T 15822.2-2005, ISO 9934-2. 2002, IDT) GB/T 15822.3 Non-destructive testing - Magnetic particle testing - Part 3. Equipment (GB/T 15822.3-2005, ISO 9934-3.2002, IDT) GB 16423 Metallic non-metallic mine safety regulations JB/T 4730.3 Non-destructive testing of pressure equipment - Part 3. Ultrasonic testing JB/T 8296.1 Mine narrow-gauge vehicle open wheelset JB/T 9218 Nondestructive Testing Penetration Testing Coal Mine Safety Regulations (2006 Edition)3 Danger ListThe dangers that mining trucks may cause at various stages due to physical properties and intended use during their lifetime are shown in Table 1. Table 1 Danger List Serial number danger1 Operating position does not conform to ergonomics2 Wheel tread shape and size do not meet the requirements3 wheel-to-rail gauge is out of tolerance, derailed, tracked4 Insufficient strength and unreasonable structure5 car chassis deformation, weld crack6 The guard is not complete or not secure7 Pulling connection device is stuck, disengaged or broken during operation 8 Buffer, shock absorber failure9 springs are permanently deformed10 Vehicles are unstable, tipped, and slipped out 11 The operating mechanism is inflexible or ineffective 12 Brake system failure4 Safety requirements and measures4.1 The safety measures and countermeasures for the intended use of passenger cars shall be consistent with the relevant requirements of GB/T 15706.1. 4.2 Personnel shall comply with the relevant provisions of the “Safety Regulations for Coal Mines” or GB 16423. 4.3 Personnel should be designed according to ergonomic principles to reduce labor intensity and avoid operator fatigue. 4.4 Wheel treads shall comply with the provisions of GB/T 4695, the wheel corresponding to the provisions of JB/T 8296.1, the wheel and rail clearance is not greater than 2mm. 4.5 The thickness of the roof of the car and the front and rear walls shall not be less than 2mm. 4.6 No part of the compartment should have sharp edges, sharp corners and projections that could cause injury. 4.7 There is no permanent deformation after the test load of the chassis underframe with 3 times the maximum static load, and the welds shall be free from cracks. 4.8 The front and rear walls of the head car shall have an observation window; the front wall of the trailer shall also have an observation window. 4.9 The comfort factor of the vehicle shall not be less than 0.3 and shall be calculated according to formula (1). K =S/N (1) In the formula. K---comfort coefficient; S---car floor area in square meters (m2); N---Number of seats, the unit is one. 4.10 The protective railings should be installed at the entrance of the carriage and should not fall off during operation. 4.11 There should be protective armrests on both sides of the passenger seat. The carriage should be able to transport the stretcher carrying the wounded. 4.12 The main drawbar, connecting device and pin shaft shall be subjected to tensile test. The breaking force of the test shall not be less than 13 times of the maximum static load. 4.13 The main drawbar, pin shaft, claw and wedge box shall be inspected for flaw detection, and the result shall not exceed JB/T 4730.3, JB/T 9218, The provisions of Class I defects in GB/T 15822. 4.14 The connector, the head and the steering gear of the vehicle shall have damping devices. 4.15 The resistance value of the buffer device shall be calibrated, and the parts shall be free of permanent deformation or damage after calibration. The resistance values of the two buffers are different. Should be greater than 15%. 4.16 Buffer wood should use red pine or other materials with the same resistance value as red pine. It should not affect the resistance within 40mm of the cut surface. Defects such as cracks and scorpions. 4.17 Buffer wire ropes shall be in the form of single-layer round strands and interactive turns with a safety factor of not less than 3. 4.18 The spring shall be compressed (stretched) 3 times under the test load and its permanent deformation shall not exceed 0.5% of the free height. 4.19 The vehicle should be stable and reliable during operation and should not be tilted horizontally or vertically. 4.20 After the vehicle group is listed, it should be able to pass the curve with the smallest radius of curvature. 4.21 Each moving part should be flexible and coordinated, and the reset should be accurate and reliable. 4.22 The running speed of the group of people and vehicles. the inclined wells should not exceed 5m/s, and the lanes should not exceed 3m/s. 4.23 The alleys are generally not equipped with brakes. When installation is required, the sliding distance after braking should be less than 20m. 4.24 When the inclined shaft car train is in operation, the braking device of each car should be flexible and reliable. In the first car in the direction of travel, there should be a fast Fast, reliable manual brakes. 4.25 The claws and wedge boxes shall be subjected to static load test. The test load shall be three times the maximum braking force and shall not be permanently deformed after the test. 4.26 The claws and wedge boxes are flexible and laterally movable, and the amount of movement is 20mm~25mm. 4.27 The idle travel time of the inclined car and the human car brake. the holding rail type is not more than 0.2s, and the claw type is not more than 0.3s. Dropping claws (or claws) on both sides The time difference is no more than 0.02s. 4.28 Average braking deceleration of the inclined well car under the same braking resistance. no load should be greater than 30m/s2, full load is 10m/s2~ 13m/s2. 4.29 Trains consisting of design requirements shall be subjected to zero-speed decoupling test. During the test, the movements of all parts shall be in place, and each car shall be clawed. brake. 4.30 When the zero-speed decoupling brake is applied, the angle between the claw and the top surface of the rail is 70°～75°, and one side of the tooth piece should bite the full height of the side of the rail head. One side should not be less than 2/3. 4.31 When the claw is dropped, the distance between its tip and the plane above the sleeper shall not be less than 70 mm. 4.32 After braking the vehicle, all parts shall be free from defects such as cracks, deformation, distortion and open welding. The brake frame shall be able to return to its position. 4.33 Inclined wells should be equipped with flexible and reliable flat road locking devices.5 Determination of safety requirements and measures5.1 Test equipment. a) a test machine with an accuracy of not less than ±1% and a minimum division value of not more than 2kN; b) a spring testing machine with an accuracy of not less than ±1% and a minimum division value of not more than 0.1 kN; c) Steel tape measure and steel ruler with graduation value of 1mm, vernier caliper... ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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