Analysis on Cavitation of 312 Backhoe Loader Motor’s Used in Kulami Tunnel

doi:10.3973/j.issn.1672-741X.2015.S2.037

Tunnel Construction ›› 2015, Vol. 35 ›› Issue (S2): 205-208.DOI: 10.3973/j.issn.1672-741X.2015.S2.037

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Analysis on Cavitation of 312 Backhoe Loader Motor’s Used in Kulami Tunnel

WANG Bingchao

(Tunnelingdedicated Equipment Center, China Railway Tunnel Group Co., Ltd., Luoyang 471009, Henan, China)

Received:2015-05-07 Revised:2015-05-26 Online:2015-12-15 Published:2015-12-24

Abstract

Abstract:

Hydraulic components have been used in a lot of advanced machines, such as trolley, backhoe loader, shield machine and so on. A wide variety of problems appear in the use of these machines gradually, and cavitation is one of these. In this paper, the causes for the damage of hydraulic deliver motor of 312 backhoe loader used in Kulami tunnel are analyzed. The air stress in the hydraulic oil is calculated by means of formula estimation, and the stress caused by the air exploding is calculated according to related data. In the end, the damage to the hydraulic components caused by cavitation and the causes of the cavitation are analyzed.

Key words: backhoe loader, hydraulic motor, failure analysis, cavitation

CLC Number:

U 455.3+9

WANG Bingchao. Analysis on Cavitation of 312 Backhoe Loader Motor’s Used in Kulami Tunnel[J]. Tunnel Construction, 2015, 35(S2): 205-208.

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Analysis on Cavitation of 312 Backhoe Loader Motor’s Used in Kulami Tunnel

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