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一、引言轴向柱塞泵的柱塞油缸,工作时不断进行高低压转换。充满低压油的柱塞油缸突然和高压油腔接通时,高压油会瞬间向缸中倒流,产生液压冲击和噪声;同样,充满高压油的柱塞油缸突然和低压油腔接通时。缸中的高压油会瞬间向低压腔膨胀,也会产生液压冲击和噪声。为了消除这种有害现象,常采用带有减震槽的非对称正遮盖度配流盘。据目前有关资料介绍的这种配流盘的设计方法,只能保证在额定的设计工况下完全消除液压冲击。由于轴向柱塞泵变量调节容易,大多做成各种类型的变量泵,并常在变压状态下工作。这样,随着泵的工况调节,配流盘的减震效果会变坏。本文将研究变工况调节的轴向柱塞泵,可以完全消除配流冲击的配流盘的最佳设计方法。
First, the introduction of axial piston pump piston cylinder, continuous high and low pressure conversion work. When the piston cylinder filled with low-pressure oil is suddenly connected to the high-pressure oil chamber, the high-pressure oil will instantly flow back into the cylinder, resulting in hydraulic shock and noise. Similarly, when the high-pressure piston cylinder suddenly and low-pressure oil chamber is connected. The high-pressure oil in the tank will momentarily expand to the low-pressure chamber and also cause hydraulic shock and noise. In order to eliminate this harmful phenomenon, often with shock absorber slot asymmetric positive cover degree of flow plate. According to the present information on the design of this type of flow plate, can only ensure that the rated design conditions completely eliminate the hydraulic impact. As the axial piston pump variable adjustment easy, mostly made of various types of variable displacement pump, and often work in the transformer state. In this way, as the condition of the pump is adjusted, the damping effect of the flow compensator will deteriorate. In this paper, we will study the axial piston pump with variable working conditions, which can completely eliminate the optimal design method of the flow distribution plate.