Power device

Abstract

The invention relates to a power device. The power device comprises a pump which comprises a pump body; a rotor is arranged in the pump body; the two ends of a long diameter direction of the rotor are provided with a plurality of oil guiding channels communicated with the two sides of the peripheral direction of the rotor; the oil guiding channels at each end are arranged at intervals in the axial direction of the rotor; a partitioning part located between every two adjacent oil guiding channels at the same end of the rotor is used for being in supporting fit with a partition plate; a sealing block is movably assembled in the rotor in the long diameter direction in a guiding manner; the sealing block is provided with a first position avoiding the oil guiding channels and a second positioning moving outwards under the effects of the centrifugal force to block the oil guiding channels in the movement travel of the sealing block; and the rotor is provided with a spring applying the acting force onto the sealing block to make the sealing block located at the first position. The power device can reduce the starting load of a motor.

Description

technical field [0001] The invention relates to a power device. Background technique [0002] As a common power device, hydraulic power mainly includes a motor and a pump driven by the motor, and the performance of the pump directly determines the performance of the power device. Existing pumps such as the "pump" disclosed in Chinese patent CN101749228A include a base on which a pump body is provided. Extended rotor, the cross-section of the rotor has two points of tangency with the inner cavity of the cylindrical bore. There is a hole on the outer periphery of the pump body, and a baffle is installed at the hole to guide and move. The baffle divides the hole into a liquid inlet and a liquid outlet. The rotor is a cylinder. [0003] When in use, the rotor rotates clockwise, and the cavities on both sides of the rotor communicate with the liquid inlet and the liquid outlet respectively. The cavity connected with the liquid inlet is a low-pressure chamber, and the cavity con...

AI Technical Summary

Problems solved by technology

The existing problem of this kind of pump is: the rotor is driven by the motor to rotate, corresponding to the motor, the start-up load is large, not only the power consumption but also the loss of the motor is large, and in the prior art, when the motor is started, the low pressure cavity The motor is already filled with hydraulic oil, and the start of the motor can only be completed by working on the hydraulic oil, which increases the starting load of the motor, which not only leads to an increase in the minimum power when the motor is selected, but also affects the normal energy consumption of the motor

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