洗扫车倾箱过程举升油缸瞬态液压力的研究  

Study on the Lifting Cylinder Transient Pressure During Tilting Tank Process for Washing Truck

作　　者：张少波 ZHANG Shao-bo(Hebei Coal Mine Mechanical Engineering Technology Research Center,Shijiazhuang 050000,China)

机构地区：[1]河北省煤矿机械工程技术研究中心,河北石家庄050000

出　　处：《液压气动与密封》2022年第2期20-22,共3页Hydraulics Pneumatics & Seals

摘　　要：研究了洗扫车卸载时举升油缸的瞬态液压力。首先针对垃圾箱倾翻过程中的受力情况,建立箱体的受力模型及力矩平衡方程,然后对力矩平衡方程进行研究,计算举升油缸的瞬态液压力关于倾翻角度的一阶导数,得出倾箱过程中,油缸瞬态液压力的变化趋势,结果表明:举升油缸瞬态液压力受到箱体的倾翻角度、油缸铰接点和箱体铰接点等多种因素的影响,合理布置箱体的结构,可使得瞬态液压力的极值点处于倾箱过程的初始状态。这为洗扫车箱体结构设计提供了参考,也为确定洗扫车液压系统溢流压力提供了理论基础。The transient pressure of lifting cylinder during unloading by washing truck is studied, the stress model of the box and moment balance equations are established, and then the moment balance equation, calculating lifting oil cylinder transient fluid pressure on the first derivative of tilting angle, it is concluded that in the process of tilting box, cylinder transient fluid pressure change trend, the results show that the transient fluid pressure lifting oil cylinder by the tilting angle of box body is various, cylinder hinged point and body hinged points in a variety of factors, such as enclosure structure, rational distribution of extreme value point of the transient fluid pressure may be in the initial state of the process of tilting box. This provides a reference for the structural design of the cleaning truck box and a theoretical basis for determining the overflow pressure of the cleaning truck hydraulic system.

关 键 词：瞬态液压力 力矩 倾翻角度 极值点 

分 类 号：TH137[机械工程—机械制造及自动化]