Coal mine railway loading hydraulic traction system up the application of the device

Coal mine railway loading traction system the application of hydraulic tension bridle device - 2018 09 - 01 Qian Jun abstract: the current tension bridle device to improve coal mine railway loading system, using hydraulic transmission way solving the problem of wire rope tension bridle. Wire rope loose, hydraulic prop contraction, accumulator release; When the wire rope tight, hydraulic prop, accumulator energy storage. Add energy to pump automatically switches according to the stress status, keep the wire rope is always in the loading drawing need to maintain a certain state of tension bridle. Key words: rise up, Hydraulic pressure; Accumulator 1 coal mine railway loading status quo analysis of traction system. 1 the status quo of the traction system of loading current rail loading there are two main types of traction. The first: the locomotive traction load; The second: use a reverse winch tows loading. The first method although good, but need to railway locomotive power, waste of manpower and material resources. Therefore, the second drawing method is widely accepted. 1. 2 loading have positive traction and traction system constitute the second side hook traction in two ways, it constitutes a basic same winch of main components of main and auxiliary machinery, auxiliary components including wire rope, orientation theory, block, when tight device, roller, pressure roller and so on. 1. 3 loading traction system when tight up device faults in the system of device has been all adopt the heavy hammer tower increase adjustment way hammer, its shortcomings: ( 1) Short trip, when tight device ( The general & le; 1 meter) ； （ 2) , new steel wire rope up after shortening is difficult and not safe; （ 3) , maintenance, heavy hammer tower and increase or decrease in heavy hammer is trival, manual labor intensity big, easy to cause personal injury. 2 improve traction research purpose when tight device to solve a set of simple operation, easy maintenance rail loading traction system device, to improve the worker labor intensity, ensure safety and efficiency, heavy hammer rise device was used to overcome shortcomings. Through research in many ways using hydraulic transmission way when tight problem is the most ideal way. 3 working principle of the principle of hydraulic transmission way: wire rope loose, hydraulic prop contraction, accumulator release; When the wire rope tight, hydraulic prop, accumulator energy storage. Add energy to pump according to the stress condition of automatic switch, make the steel wire rope always stay in a certain state of tension bridle. 4 system structure of this system is mainly composed of hydraulic prop electric pump station accumulator ( See figure 1) 。 4. 1 electric pump station electric pump station by valve type axial plunger pump and combined with flow valve, tank of a small hydraulic pump station, etc. With ultra-high voltage, small volume, light weight, compact structure, convenient operation, etc. The pump for duplex quantitative pump. Implementation in low voltage, high and low pressure oil supply at the same time, get big traffic, speed up the schedule; High pressure, high pressure oil pump only, can obtain ultra-high pressure, at this point, the low pressure pump light oil, can reduce the power loss, and oil can reduce fever. 4. 2 hydraulic prop hydraulic prop hydraulic drive motion inertia small, small volume, light weight, fast response, convenient operation, can automatically realize overload protection, easy to achieve linear motion. 4. 3 accumulator using the most widely used bag type accumulator by changing the airbag prefi lled nitrogen volume in the oil chamber of hydraulic oil in the accumulator to become has certain hydraulic pressure oil, the accumulator has good sealing, high efficiency, high sensitivity, compact structure, light weight, easy maintenance, small motion inertia. 5 system applications use effect and the conclusion. 1 application system using the system, respectively, in 2009 in xu mining group QuanTai coal mine railway loading system and in 2010, xu mining group company marketing nangang coal yard loading system in use is safe, stable and reliable system operation. To achieve the system improvement, function and technical index. 5. 2 series advantage system maintenance quantity is small, safe, stable and reliable performance; Replace the wire rope wheel is simple and convenient; Bigger new wire rope allowance, relatively simple and safe operation; Protect wire rope used in ideal condition, prolong service life. 5. 3 conclusion updated system, improve the work efficiency, reduce the labor intensity, convenient for marshalling, loading operations. Improve the level of the modernization of enterprise management and production safety, for the development of the coal mine railway loading system gradually improve laid a foundation. Obvious economic benefits and social benefits, and the larger promotion and application value.