Novel electro-hydraulic motor

A hydraulic motor and motor technology, applied in the field of hydraulic motors, can solve the problems of not being too high in speed, poor in stability at low speed, difficult to guarantee accuracy, etc.

Pending Publication Date: 2021-01-08
ZHEJIANG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the screw motor is relatively complicated and the price is relatively expensive
The output torque of the axial piston motor is larger than that of the gear motor and the vane motor, and the volumetric efficiency is higher, but the anti-pollution ability is worse than that of the gear motor, and the speed cannot be too high
The single-acting connecting rod radial piston motor has a fi...

Method used

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] refer to Figure 1 to Figure 9 , a new type of electro-hydraulic motor, including motor, pump and hydraulic motor, an initial torque is input from the motor shaft, and the torque is transmitted to the space cam through the meshing transmission of the gear pair, and the space cam on the piston shaft is constrained by the cone roller , so as to generate reciprocating motion; through the reciprocating motion of the piston, the suction and extrusion of water are realized. The pressure port corresponds to the suction port of the hydraulic motor, and the suction port of the hydraulic pump corresponds to the outlet of the hydraulic motor. The fluid pushes the piston in the motor cylinder to move, and then drives the cams on both ends to rotate, converting the pressure energy into rotational mechanical energy, and then the splines on the cam make the motor shaft rotate....

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Abstract

A novel electro-hydraulic motor comprises a motor, a pump and a hydraulic motor. Initial torque is input through a motor shaft, the torque is transmitted to a space cam through meshing transmission ofa gear pair, and a space cam on a piston shaft generates reciprocating motion under the constraint of a bevel roller. Water is sucked in and pressed out through reciprocating motion of the piston, apressing opening of the piston corresponds to a suction opening of the hydraulic motor, a suction opening of the hydraulic pump corresponds to an outlet of the hydraulic motor, and therefore a closedloop between the pump and the hydraulic motor is achieved; high-pressure fluid pushes the piston in a motor cylinder body to move, and then two end face cams are driven to rotate to convert pressure energy into rotating mechanical energy; and splines on the cams enable a motor shaft to rotate. The working efficiency of the novel electro-hydraulic motor is greatly improved, on the other hand, the service life of the electro-hydraulic motor is prolonged, and the novel electro-hydraulic motor has the advantages of being large in torque and small in overall structure.

Description

technical field [0001] The invention relates to a hydraulic motor, which belongs to hydraulic pumps and hydraulic motors in the field of fluid transmission and control. Background technique [0002] The hydraulic motor is the actuator in the hydraulic system, and it is an energy conversion device that converts the hydraulic energy provided by the hydraulic pump into mechanical energy. Hydraulic motors can be divided into two categories, high-speed hydraulic motors and low-speed hydraulic motors. High-speed hydraulic motors include gear motors, screw motors, vane motors, and axial piston motors. Low-speed hydraulic motors include single-acting connecting rod radial piston motors and multi-acting internal curve radial piston motors. The oil inlet and outlet ports of the gear motor are equal, and the leaked oil needs to be led out of the casing through a separate oil drain port. Generally, the gear motor has a large number of teeth, poor sealing performance, and low volumetric...

Claims

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Application Information

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IPC IPC(8): F04B17/03F04B9/04F03C1/30F03C1/28F03C1/32
CPCF03C1/002F03C1/22F04B9/042F04B17/03
Inventor 邢彤郭潇恬吴昊靳金全贾兴稣阮健
Owner ZHEJIANG UNIV OF TECH
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