论文部分内容阅读
在齿轮泵中,常在侧板上开卸荷槽以避免困油,卸荷槽的位置对齿轮泵的性能有很大的影响。然而,关于卸荷槽的位置还未给出一个确定的设计准则。为了确定卸荷槽的位置,必须弄清楚齿轮泵工作中的困油现象。在本研究中,用一个特制的固定侧板型外啮合齿轮泵作被试件,通过其上安装的半导体型压力传感器测量了主动齿轮和从动齿轮所形成的困油区中的压力。试验揭示了卸荷槽的位置和侧隙尺寸对困油区中的压力上升幅值和泵的性能的影
In the gear pump, often on the side plate to open the trough to avoid oil trapped, unloading trough position on the gear pump performance has a great impact. However, a definite design criterion has not yet been given regarding the location of the relief groove. In order to determine the location of unloading trough, we must clarify the work of the gear pump trapped in oil phenomenon. In this study, a specially designed fixed-side plate-type external gear pump was used as the test piece, and the pressure in the puddle formed by the driving gear and the driven gear was measured by a semiconductor-type pressure sensor mounted thereon. The test revealed the location of unloading trough and the size of the backlash on the pressure rise in the trapped oil zone and pump performance