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在机器转轴的转动方向经常交变的场合,使用齿轮油泵或摆线油泵润滑各传动副,会出现“反转不上油”的现象,为此,我们把泵体的油路作了如图所示的改动。当轴1按箭头方向旋转时,腔6形成真空,单向阀2打开,3、4关闭,油从进油口被吸入,泵入压力腔7,单向阀5打开,油从出油口被泵出; 当轴1反向旋转时,腔7形成真空,单向阀4打开,2、5关闭,油从进油口被吸入,泵入压力腔6,单向阀3打开,油从出油口被泵出。注意: (1)弹簧刚度要选择合适; (2)装配时间用钢球铆一下接触的孔口,以使配合密实。我们选用的钢球是φ10,弹簧是0.8×10×18,Q81-1;钢球是φ8,弹簧是0.6×7×18,Q81-1。使
In the machine shaft rotation direction often alternating occasions, the use of gear pump or cycloid oil pump lubrication of transmission, there will be a “reverse oiling” phenomenon, for which we pump the oil made as shown The changes shown. When the shaft 1 is rotated in the direction of the arrow, the chamber 6 is evacuated, the check valve 2 is opened, the valves 3 and 4 are closed, the oil is sucked in from the oil inlet, pumped into the pressure chamber 7, the check valve 5 is opened, When the shaft 1 is rotated in the reverse direction, the chamber 7 forms a vacuum, the check valve 4 is opened, the valve 2 is closed, the oil is sucked in from the oil inlet 6, the pressure chamber 6 is opened, the check valve 3 is opened, The oil outlet is pumped out. Note: (1) the spring stiffness to choose the right; (2) assembly time riveted the ball with a hole in contact with the dense. We use the ball is φ10, the spring is 0.8 × 10 × 18, Q81-1; ball is φ8, the spring is 0.6 × 7 × 18, Q81-1. Make