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Large-displacement integrated rotor and stator pair cycloid hydraulic motor

A technology of hydraulic motor and rotating stator is applied in the field of cycloid hydraulic motor and integral rotating stator pair cycloid hydraulic motor, which can solve the problems of unfavorable flatness at both ends, affecting the comprehensive performance of the motor, and difficulty in processing. The dimensional accuracy and position accuracy are easy, the theoretical position accuracy is easy to guarantee, and the overall assembly is good.

Inactive Publication Date: 2014-03-05
ZHENJIANG DALI HYDRAULIC MOTOR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to the applicant's knowledge, the existing integral rotor-stator pair is mainly used in shaft valve distribution cycloidal hydraulic motors. At present, the length of the integral rotor-stator pair is less than 66mm, and the maximum nominal displacement of the motor is 500. Increasing the displacement requires an increase in rotation speed. The length of the stator pair is difficult to process before the heat treatment of the stator. The seven broaching processes have a protruding inner cavity. In addition, the length is too long to ensure the flatness of the two ends of the plane, which may affect the motor. comprehensive performance

Method used

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Embodiment 1

[0026] The large-displacement integrated rotor-stator pair cycloidal hydraulic motor of this embodiment has compact radial dimensions, and the length of the integral rotor-stator pair is greater than 65mm, such as the nominal displacement of the motor is 630 or 740, etc., and its structure is as follows figure 1 As shown, it mainly includes output shaft 1, front cover 4, body shell 11, linkage shaft 16, spacer 13, front stator 14, rotor 15, rear stator 26, rear cover 18, etc. The stator is spliced ​​by two split parts, and the two split stators are sealed by an O-ring, and the rotor is a whole. The assembly structure of the integral rotor stator pair is as follows: figure 2 As shown in the figure, the front stator 1, O-ring 2, front stator 3, and rotor 4 are shown in the figure, and the meshing diagram of the integral rotor stator pair is shown in image 3 As shown, the stator 1 and the rotor 2 in the figure.

[0027] figure 1 The internal spline of the rotor 15 is a disco...

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Abstract

The invention relates to a large-displacement integrated rotor and stator pair cycloid hydraulic motor as well as a method for machining the large-displacement integrated rotor and stator pair cycloid hydraulic motor, and belongs to the technical field of hydraulic transmission. The integrated rotor and stator pair cycloid hydraulic motor is large in displacement, and a rotor and stator pair is long, so that the integrated rotor and stator pair cycloid hydraulic motor can not be machined by a conventional method. A stator of an integrated rotor and stator pair consists of two split stators which are spliced, wherein the two split stators are sealed through an O-shaped sealing ring; a rotor is integrated; the lengths of the two split stators can be different. According to the large-displacement integrated rotor and stator pair cycloid hydraulic motor and the method for machining the large-displacement integrated rotor and stator pair cycloid hydraulic motor, the displacement of the motor can be increased; the integrated rotor and stator pair is high in manufacturability; the performance of the large-displacement motor is proven to be stable; the requirements of a large-displacement axial valve flow distribution cycloid hydraulic motor are met.

Description

technical field [0001] The invention relates to a cycloidal hydraulic motor which converts hydraulic energy to mechanical energy through the meshing pair of a cycloidal pinwheel group, in particular to a large-displacement integrated rotor-stator pair cycloidal hydraulic motor, which belongs to the technical field of hydraulic transmission. Background technique [0002] The cycloidal hydraulic motor is a low-speed high-torque motor, which has the advantages of small size, high unit power density, high efficiency, and wide speed range, so it has been widely used, and it has become more widely used with the development of industry and agriculture. [0003] The basic structure of the cycloidal hydraulic motor is that the body shell or the back cover is equipped with a liquid inlet and a return port, and one end is equipped with a cycloidal pinwheel meshing pair and a flow distribution mechanism. The flow distribution mechanism can be placed before or after the cycloidal pinwheel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03C2/08B23P15/00
Inventor 王志生张智敏翁爱光张常青
Owner ZHENJIANG DALI HYDRAULIC MOTOR
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