液压泵有齿轮泵、叶片泵、柱塞泵、螺杆泵等,在工程机械液压系统中,齿轮泵应用较多。介绍齿轮泵工作原理,齿轮泵性能参数,分析影响其性能的结构因素和使用因素,研究相应的改进措施,以期更好地发挥齿轮泵的工作性能。 Hydraulic pump gear pump, vane pump, piston pump, screw pump, hydraulic system in construction machinery, gear pump applications more. Introduce the working principle of the gear pump, the performance parameters of the gear pump, analyze the structural factors and the factors that affect its performance, and study the corresponding improvement measures in order to give better play to the performance of the gear pump.