浅谈径向柱塞泵的革新方案

• 作 者: 路法增
• 出 处: 机床与液压
• 发表日期: 1979年04期
• 关键词: 柱塞 径向柱塞泵 滚针轴承 外环 偏心轴 油压机 吸油 阀组 半周 进油

我厂的908型63吨油压机上采用的是老式的三柱塞径向泵,其打油原理如图1所示。三个偏心轮分别推动三个柱塞完成打油动作。柱塞由阀套和进油阀组成,柱塞回程由弹簧推回,完成吸油动作。泵在空载时滚针轴承外环不受力,泵在工作时,偏心轴每转一周,外环有半周不受力,外环在不受力时与偏心轴一起回转,由于惯性关系,即使受力时轴承外环也经常相对活塞滑动,所以活塞的进油阀磨损很快,一般两三个月就要更换一次。

I plant the Model 908 63 tons of hydraulic machine is used on the old three-piston radial pump, the oil hit the principle shown in Figure 1. Three eccentric wheel to promote the three plunger to complete the oil action. The plunger is composed of a valve sleeve and an oil inlet valve, and the plunger return stroke is pushed back by a spring to complete the oil absorption action. Pump in the no-load outer ring when the needle bearing force is not in force, the pump at work, the eccentric shaft per revolution, the outer ring half a week without force, the outer ring with the eccentric shaft without force rotation, due to inertia, Even when the force bearing outer ring is often relatively sliding relative to the piston, so the piston inlet valve wear quickly, usually two to three months to be replaced once.