一、CB-B型齿轮泵的卸荷槽在外啮合齿轮泵中,两齿轮的重叠系数通常大于1(ε>1),所以在其相啮合的两对齿之间所封闭的容积部分,会产生困油现象(图1)。若不采取措施来消除这种困油现象,将会引起困油容积中的油液压力急剧上升,使泵轴轴承的负荷也急剧增加,并产生振动、压力波动、噪音及工作油液发热等现象;同 First, the CB-B type gear pump unloading tank In the external gear pump, the overlap coefficient of two gears is usually greater than 1 (ε> 1), so in the two parts of the meshing between the closed volume portion will be Resulting in trapped oil phenomenon (Figure 1). If you do not take measures to eliminate this trapped oil phenomenon, will cause the oil pressure in the oil trapped in a sharp increase in the load on the shaft bearings also increased sharply, and produce vibration, pressure fluctuations, noise and working fluid fever Phenomenon; the same