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Dual cycloid hydraulic motor

A hydraulic motor and double cycloid technology, applied in the field of hydraulic motors, can solve the problems of small output torque, low mechanical efficiency, and short life, and achieve the effect of large output torque, small loss of mechanical efficiency, and long service life

Inactive Publication Date: 2006-11-15
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still defects such as small displacement, small output torque, low mechanical efficiency, and short life.

Method used

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  • Dual cycloid hydraulic motor
  • Dual cycloid hydraulic motor
  • Dual cycloid hydraulic motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as image 3 , Figure 4Shown, a double cycloid hydraulic motor. The motor is mainly composed of output shaft 1, distribution shaft 10, front end cover 2, machine base 3, spline coupling 4, housing 5, outer rotor 6, pin teeth 7, inner rotor 8, rear end cover 9, etc. components. The inner rotor 8 is a short epicycloid wheel or disc; the pin teeth 7 are eccentric pin teeth, which are positioned by holes and rotate eccentrically. ; The outer rotor 6 is a short hypocycloid ring gear, and the inner rotor 8 is eccentrically arranged relative to the outer rotor 6 . When the inner rotor is a disk, the eccentricity of the pin teeth is equal to the eccentricity of the inner rotor; 1 / 2. The inner rotor 8, the pin teeth 7, and the outer rotor 6 form a plurality of independent closed tooth chambers 11, and these closed tooth chambers 11 are both high pressure chambers and oil discharge chambers. The distribution shaft 10 and the output shaft 1 are an integral shaft structu...

Embodiment 2

[0032] Such as Figure 5 , Figure 6 As shown, a double cycloid hydraulic motor is mainly composed of an output shaft 1, a front end cover 2, a distribution valve 10, a front base 3, a spline coupling 4, a casing 5, and a hypocycloid outer rotor 6 , needle teeth 7, epicycloid inner rotor 8, rear frame 12, rear end cover 9 and other components. The outer rotor 6 is a short-width hypocycloid wheel, the inner rotor 8 is a short-width epicycloid wheel or a disc, and the pin teeth 7 are eccentric pin teeth. The output shaft 1 is fixedly connected with the hypocycloidal outer rotor 6; the pin teeth are positioned by holes and rotate eccentrically, and the centers of the positioning holes of the pin teeth 7 are distributed on the circle centered on the rotation center of the outer rotor; the inner rotor 8 is relative to the outer rotor 6 Eccentric setting. When the inner rotor is a disk, the eccentricity of the pin teeth is equal to the eccentricity of the inner rotor; when the in...

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Abstract

A double-cycloid hydraulic motor comprises a output shaft, front and back end caps, a distributing valve, a motor base, internal and external rotors and several pin teeth. The output shaft is connected with the internal rotor each other. The pin teeth disposed between the external and internal rotors are engaged with the external and internal rotors at the same time. Between the internal and external rotors and the pin teeth are formed several independent enclosed tooth cavities, which are in communication with the distributing valve separately and then in communication with the fuel inlet and outlet through the distributing valve.

Description

technical field [0001] The invention relates to a hydraulic transmission device, in particular to a hydraulic motor. technical background [0002] figure 1 Shown is an existing planetary rotor type cycloidal motor, which is mainly composed of an output shaft, a flow distribution shaft, a housing, a spline coupling, a cycloidal rotor, a stator, a front end cover and a rear end cover. The distribution shaft is the output shaft, the tooth shape of the cycloidal rotor is a short epicycloid, and the tooth shape of the stator is an arc. with Z 1 The cycloidal rotor with three teeth is the external tooth pinion, and has Z 2 The stator with four teeth, that is, the inner ring gear, meshes to form a Z 2 a closed volume. These closed volumes are connected to the inlet and outlet ports through the distribution shaft, and the distribution shaft acts as a switching valve, controlling the connection or disconnection between the inlet and outlet ports and each closed volume, which mak...

Claims

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Application Information

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IPC IPC(8): F15B15/12F03C2/00
Inventor 林菁
Owner SHANGHAI NORMAL UNIVERSITY
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