How is the hydraulic motor driven?

The hydraulic final drive motor is a high-pressure oil that enters the low-pressure oil, and the pump draws in low-pressure oil to discharge high-pressure oil. The drive shaft of the hydraulic motor is connected to the drive shaft of the pump (coaxial), which drives the pump to rotate when the hydraulic motor rotates.

The hydraulic pump and the hydraulic motor are hydraulic components that can be used for reversible work. When any working fluid is input to any hydraulic pump, it can be turned into a hydraulic motor working condition; otherwise, when the main shaft of the hydraulic travel motor is driven to rotate by an external torque, Can be changed to hydraulic pump conditions. Because they have the same basic structural elements, the closed and periodically variable volume and the corresponding oil distribution mechanism.

There are still many differences between hydraulic motors and hydraulic pumps of the same type. Due to the different working conditions of the final drives and the hydraulic pump, the performance requirements are different. First, the hydraulic motor should be able to be positive and reverse, thus requiring the internal structure to be symmetrical; the speed range of the hydraulic motor needs to be large enough, especially for its The minimum stable speed has certain requirements. Therefore, it usually uses rolling bearings or hydrostatic sliding bearings; secondly, the hydraulic motor does not have to have self-priming capability because it operates under input pressure oil conditions, but requires a certain initial sealing to provide the necessary starting torque. It is precisely because of these differences that the hydraulic motor and the hydraulic pump are similar in structure but cannot be reversible.

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