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针对一类轮边独立驱动的液压传动平地机,在对其偏载工况进行静力学分析的基础上,研究了同步性能对牵引力的影响及原因,给出了无同步功能相对于有同步功能时牵引力损失的边界条件,推导了偏载力大小、作用角度、作用点及前轮转向角等参数与牵引力损失之间的函数关系,并讨论了在边界条件满足的情况下,各参数对牵引力损失的影响趋势。以提高平地机同步性能为目标,提出了基于液压同步装置的解决方案。研究结果表明:前轮转向角、等效驱动轮中心到外负载垂直方向分量的距离及负载力对牵引力损失呈单调递增影响;偏载合力与竖直方向的夹角对牵引力损失呈单调递减影响;平地机施工时偏载力与竖直方向的夹角一般小于45°,在没有同步功能的情况下,边界条件易于满足,即在较大范围的偏载作业工况下,牵引力都存在一定损失,实际作业效率降低。
Based on the statics analysis of the partial load condition of a hydraulic geared motor driven independently by the wheels, the influence of synchronizing performance on the traction force and the reason are studied. The relationship between traction force loss and traction force loss is derived as a function of the boundary conditions of the traction force loss, and the relationship between the traction force and the traction force The impact of loss trends. In order to improve the synchronous performance of the grader, the solution based on the hydraulic synchronizer is put forward. The results show that the distance and the load force of the front wheel steering angle and the vertical component of the equivalent driving wheel center to the external load increase monotonously with the loss of traction force. The angle between the partial load force and the vertical direction has a monotone decreasing effect on the traction loss ; When the grader is under construction, the angle between the eccentric load and the vertical direction is generally less than 45 °. Under the condition of no synchronization function, the boundary conditions are easy to meet. That is to say, under a wide range of partial load operating conditions, Loss, the actual operating efficiency is reduced.