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Hyyol型齿轮油泵由于结构简单,制造方便,成本低,目前仍广泛用于各种磨床液压传动中,但这种泵压力脉动大、噪音大、寿命低,影响了磨削光洁度的提高,尤其是平面磨床用的泵流量较大,如M7130平磨用的泵是25×100(公斤/厘米~2×公升/分),这些矛盾就更加突出了。为了改进这些缺点,我们设计制造了含油轴承斜齿轮泵,并进行了试验,从初步试验结果来看,这种泵保持了齿轮泵结构简单,制造方便,成本低的优点,在性能上又有了很大的改进;压力脉动小,噪音较低,寿命也较长,适用于一般磨床液压传动。现将试验情况介绍如下。
Because of its simple structure, easy manufacture and low cost, Hyyol gear oil pumps are still widely used in hydraulic drives of various grinding machines. However, such pumps have large pressure fluctuations, high noise, and low service life, which affects the improvement of grinding finish, especially The flow rate of the pump used for surface grinders is relatively large. For example, the pump used for M7130 flat grinding is 25×100 (kg/cm~2×liter/min), and these contradictions become more prominent. In order to improve these shortcomings, we designed and manufactured oil-bearing bevel gear pumps and conducted tests. From the results of preliminary tests, this type of pump maintains the advantages of simple gear pump structure, convenient manufacture, and low cost. Great improvement; small pressure pulsation, low noise, long life, suitable for general grinder hydraulic drive. Now introduce the test situation as follows.