Features Of Hydraulic Motors

From the point of view of energy conversion, hydraulic pumps and hydraulic motors are hydraulic components that work reversibly, and the input of working fluid to any hydraulic pump can make it become a hydraulic motor condition; Conversely, when the spindle of the hydraulic motor is driven and rotated by an external torque, it can also become a hydraulic pump working condition. Because they have the same basic structural elements - a closed and periodically variable volume and a corresponding oil distribution mechanism. However, due to the different working conditions of hydraulic motors and hydraulic pumps, their performance requirements are also different, so there are still many differences between the same type of hydraulic motor and hydraulic pump. First of all, the hydraulic motor should be able to reverse and reverse, so its internal structure is required to be symmetrical; The speed range of the hydraulic motor needs to be large enough, especially for its minimum stable speed. Therefore, it usually uses rolling bearings or hydrostatic plain bearings; Secondly, because the hydraulic motor works under the condition of input pressure oil, it does not have to have self-priming ability, but it needs a certain initial tightness to provide the necessary starting torque. Due to these differences, hydraulic motors and hydraulic pumps are structurally similar, but they cannot work reversibly.