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A low-speed high-torque compound hydraulic motor

A low-speed, high-torque, hydraulic motor technology, applied in the direction of servo motors, servo motor components, fluid pressure actuators, etc., can solve the problems affecting the reliability and practicability of the drive system, increase the complexity of the drive system, etc., and achieve hydraulic control The principle is simple and reliable, easy to lock, and the effect of increasing the output torque

Active Publication Date: 2022-03-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can reduce the output speed and increase the output torque to a certain extent, it increases the complexity of the drive system and affects the reliability and practicability of the drive system.

Method used

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  • A low-speed high-torque compound hydraulic motor
  • A low-speed high-torque compound hydraulic motor
  • A low-speed high-torque compound hydraulic motor

Examples

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Embodiment Construction

[0033] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0034] Such as figure 1 As shown, the present invention includes a mechanical transmission mechanism and a hydraulic control circuit, and the mechanical transmission mechanism and the hydraulic control circuit are connected in oil through joints, hoses, etc.;

[0035] The mechanical transmission mechanism includes an outer casing, a cylinder body 1, several transmission groups and an internal gear shaft 5, the cylinder body 1, the transmission group and the internal gear shaft 5 are all located in the outer casing, and the internal gear shaft 5 is a hollow shaft with a hollow inner cavity , the cylinder body 1 is coaxially and fixedly installed in the hollow inner cavity of the internal gear shaft 5, and the outer peripheral surface of the cylinder body 1 is evenly provided with a plurality of cylindrical cavities along the circumference, an...

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PUM

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Abstract

The invention discloses a low-speed high-torque composite hydraulic motor. The invention includes a mechanical transmission mechanism and a hydraulic control circuit, the mechanical transmission mechanism is connected with the hydraulic control circuit; the mechanical transmission mechanism includes an outer casing, a cylinder body, several transmission groups and internal gear shafts, and the cylinder body, transmission group and internal gear shafts are all located at In the outer casing, the inner gear shaft is a hollow shaft, and the cylinder body is installed in the inner gear shaft. The outer peripheral surface of the cylinder body is provided with a plurality of cylindrical cavities along the circumference, and each cylindrical cavity is arranged radially along the cylinder body; each cylindrical cavity The cavity is connected to the internal gear shaft through a transmission group, and each cylindrical cavity communicates with its own hydraulic control circuit. The invention uses the reciprocating work of the hydraulic cylinder to drive the fixed axis of the gear to rotate, and the large reduction ratio of the internal gear transmission can reduce the output speed of the hydraulic motor to a very low level, and at the same time greatly increase the output torque, which is suitable for driving with ultra-low speed and high torque. The slewing mechanism has working characteristics, and the hydraulic control principle is simple and reliable, and it is easy to lock.

Description

technical field [0001] The invention belongs to the technical field of hydraulic motor design and control, and in particular relates to a low-speed high-torque composite hydraulic motor driven jointly by a hydraulic cylinder and a gear mechanism. Background technique [0002] A hydraulic motor is a hydraulic actuator that outputs rotary motion. According to the rated speed, hydraulic motors can be divided into two categories: high speed and low speed. The low-speed hydraulic motor has low speed and large output torque, so the corresponding deceleration device can be omitted, and it can be directly connected with the working mechanism. The traditional low-speed hydraulic motor mainly adopts radial plunger structure, which is composed of stator, cylinder body, oil distribution shaft and plunger. Its working principle is: when the pressure oil enters the bottom of the plunger in the cylinder body, the plunger It protrudes outwards and tightly bears against the inner wall of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/06F15B11/08F15B13/044
CPCF15B15/063F15B11/08F15B13/044F15B2013/0448F15B2211/205
Inventor 王林翔韩宇翔
Owner ZHEJIANG UNIV