Characteristics of hydraulic motor
From the energy conversion point of view, hydraulic pumps and hydraulic motors are reversible hydraulic components, to any kind of hydraulic pump input working fluid, can make it into the hydraulic motor condition; the other hand, when the hydraulic motor spindle from the outside When the torque is driven to rotate, it can also change to hydraulic pump condition. Because they have the same basic structural elements - a closed and cyclically variable volume and the corresponding oiling mechanism. However, due to the different working conditions of the hydraulic motor and the hydraulic pump, their performance requirements are also different, so there are still many differences between the same type of hydraulic motor and the hydraulic pump. First, the hydraulic motor should be able to be positive and reverse, thus requiring its internal structure symmetry; hydraulic motor speed range needs to be large enough, especially for its minimum steady speed has certain requirements. Therefore, it usually adopts the rolling bearing or the hydrostatic sliding bearing. Secondly, the hydraulic motor does not need to have the self-priming capability because it works under the condition of the input pressure oil, but it needs some initial sealing to provide the necessary starting torque. Because of these differences, the hydraulic motor and the hydraulic pump are similar in structure but can not work reversibly.
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