并联型双吸、排油口轴向柱塞泵有多种工作方式,其结构可通过将两口轴向柱塞泵吸、排油窗口分别改为并联布置的两个窗口加以实现,采用10个柱塞以达到流量均衡的目的.为分析其流量压力输出特性及加载后的工作情况,应用SimulationX软件对液压泵进行建模,并对其不同工作方式下加载不同类型的负载进行仿真实验.仿真结果表明,柱塞在配流盘死点区域与配流窗口接通瞬间,由于通流面积的突变会造成短暂的压力流量冲击现象,转速越高,脉动越大,可通过综合运用减震三角槽减小过渡区域面积等措施减小冲击.液压泵转速进行正反转切换时,也会产生一定的流量压力冲击,转速不可进行瞬时正反转转换.%Parallel dual sucking and discharging axial piston pump has a variety of working methods, its structure could be achieved by changing the axial piston pump suction and action window into two paralleled windows, and 10 plungers were applied to achieve the pur-pose of flow rate equilibrium. In order to analyze the flow pressure output characteristics and the working conditions under loading, Simula-tionX software was used to model the hydraulic pump, and simulate different load application with different working conditions. The simula-tion results show that the moment when the valve plate dead area connected to the assignment window, transient pressure and flow impact phenomenon will occur due to drastic change of flow area, and the higher the speed is, the greater the ripple is. The flow pulse and pressure impact of the single plunger can be reduced through comprehensive use of transitional triangle groove, reducing the transition area and other measures. When the pump rotation is being reversed, it can also produce a certain flow pressure impact. Therefore the instant pump rotating direction change should be disallowed.
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