大温差环境下某特种车辆液压锁紧回路故障分析  

Fault Analysis of Hydraulic Locking Circuit of a Special Vehicle in Large Temperature Difference Environment

作　　者：雷凯文 屈武斌 王跃进 张根源 LEI Kaiwen;QU Wubin;WANG Yuejin;ZHANG Genyuan(Northwest Institute of Mechanical&Electrial Engineering,Xianyang Shaanxi 712099,China)

机构地区：[1]西北工程机电研究所,陕西咸阳712099

出　　处：《机床与液压》2024年第13期237-240,共4页Machine Tool & Hydraulics

摘　　要：通过对某特种车辆液压锁紧回路在大温差环境中的故障现象进行分析,建立计算模型并设计试验工装进行实装验证,结果表明:在大温差环境下,液压锁紧回路内流体介质压力变化明显,当处于温度上升段时,回路内压力会超过双向液压锁最大开启压力,与该回路设计值相比差值较大。最后,提出大温差条件下该故障的解决措施,试验验证了增大液压锁控制比或手动降低锁紧回路油压的方式能够解决该故障,对工程设计与应用具备一定的参考性。By analyzing the fault phenomenon of hydraulic locking circuit of a special vehicle in a large temperature difference environment,the calculation model was established and the test fixture was designed to verify.It is shown that in the environment of large temperature difference,the pressure change of fluid medium in the hydraulic locking circuit is obvious,which exceeds the maximum opening pressure of the two-way hydraulic lock when the temperature is rising,and the difference is large compared with the design value of the circuit.Finally,the measures to solve the fault under the condition of large temperature difference were put forward.The test proves that the method of increasing the hydraulic lock control ratio or manually reducing the oil pressure of the lock circuit can solve the fault.It provides certain reference for engineering design and application.

关 键 词：液压锁紧回路 双向液压锁 大温差环境 故障分析 

分 类 号：TH137.5[机械工程—机械制造及自动化]