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Characteristics Of Hydraulic Motors
Feb 09, 2018
From the point of view of energy conversion, hydraulic pump and hydraulic motor are reversible working hydraulic components, input working liquid to any kind of hydraulic pump can make it become hydraulic motor working condition, conversely, when the main shaft of hydraulic motor is driven by external torque, it can also be changed into hydraulic pump working condition. Because they have the same basic structural elements-airtight and can cycle change volume and the corresponding oil distribution mechanism. However, because the hydraulic motor and hydraulic pump working conditions are different, their performance requirements are not the same, so the same type of hydraulic motors and hydraulic pumps, there are still many differences. First, the hydraulic motor should be able to be positive and reverse, so that the internal structure of symmetry, hydraulic motor speed range needs to be large enough, especially for its minimum stable speed has certain requirements. Therefore, it is usually used in rolling bearings or hydrostatic bearings, and then the hydraulic motor because of the input pressure oil work, so do not have to have self-priming ability, but the need for a certain initial tightness, in order to provide the necessary starting torque. Because of these differences, the hydraulic motor and hydraulic pump are similar in structure, but can not work reversible.

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