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Anysis of Hydraulic System on SimbaH252Full Hydraulic Drill Rig Truck

Author: DongJianRong
Tutor: XueShuZuo
School: Hebei University of Science and Technology
Course: Mechanical Engineering
Keywords: drill rig truck A8V pump triple value failure analysis localization of
CLC: TD42
Type: Master's thesis
Year: 2013
Downloads: 21
Quote: 0
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Abstract


The drill rig truck is important mining machine. Along with the increasing of ourcounty’s mining scales, more and larger automatization trucks are used to improve theefficiency of mining. Some famous foreign companies have occupied the major marketbecause it is under-developed in our country on this technique. The major problems ofnational drill rig equipment are manifested as under-developed technique, the badhydraulic system and the inferior spare part quality, which will result many problemswhen working condition becomes worse. The price of foreign products and the cost ofstoring spared parts are expensive, and no sharing technique exists between the mine’sowner, so the cost of import drill rig truck that is used by ours can’t reduce.Dongpang Mountain Mine purchased an import drill rig truck at1988and uses it up tothe present. Through technical renovating and the main spared parts are displaced by thehome’s, the truck characteristics are improved, the efficiency of chiseling hole isincreasing year after year. This paper gives the details discuss emphasized on hydraulicsystem principle of SimbaH252truck, the methods of matching characteristic of thehydraulic system, disable forms of spared parts of the truck, and the approaches of mainspared parts are made by home products. And this paper analyses and discusses theworking principle and the fault eliminating method of the pressure cushion valve which isused in the transmission clutch. The structure, constant pressure principle, disable forms,the examining, and the repairing methods of the A8V pump are analyzed. Also thestructure, working principle, disable forms and the alteration of the combination valve arediscussed. Others hydraulic elements disable forms, and checking and repairing methodsare analyzed and discussed. At last this paper concludes that the main disable reasons ofthe SimbaH252drill truck‘s hydraulic system are the pollution, leaking, temperatureincreasing and the foam bring, and the treating methods are given. So the workingefficiency of the chiseling hole is increased and the reliability of the hydraulic system ofthe truck is obtained.

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CLC: > Industrial Technology > Mining Engineering > Mining machinery > Mining machinery
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