1. The size of the leakage is unstable. Its leakage is not the same at every moment, it changes periodically with the position of the slide and the viewing angle. Because the total flow into the motor at a slow speed is relatively small, the proportion of leakage is relatively large, and the instability of the leakage amount will obviously affect the total flow data affected by the motor, thus making the speed of the motor unstable.
2. The size of the friction is unstable. Normal friction expands with the expansion of the speed, but the frictional resistance in the stationary and slow area of the motor is not this rule, when the impact rate is slightly expanded, the friction resistance not only does not increase, but in turn decreases. On the other hand, the hydraulic motor and load are pushed by the pressure rise after the hydraulic oil is compressed.
3. The motor speed is too low. In the case of too low motor speed, because of the gap in the middle of the machine, the leakage is avoided, and the leakage amount inside each plunger post is different, which will cause the speed of the motor and the middle of the crankshaft to cause discordant slippage, and the macroscopic angle is the crawling condition of the motor.
