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Primary-secondary vane structure of hydraulic motor

A vane structure and hydraulic motor technology, applied in the field of hydraulic components, can solve the problems of fatigue damage, wear, affecting the service life of the vane motor, etc., and achieve the effect of improving the service life.

Pending Publication Date: 2018-11-27
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The vane hydraulic motor is a widely used hydraulic motor. The vane is closely attached to the inner surface of the stator to form a closed pressure chamber for oil suction and oil discharge, and generates rotary motion to achieve work. The vane of the existing vane hydraulic motor The contact surface between the top and the stator is large, and the wear is serious; the spring is installed at the root of the blade, which is prone to fatigue damage and affects the service life of the blade motor

Method used

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  • Primary-secondary vane structure of hydraulic motor
  • Primary-secondary vane structure of hydraulic motor
  • Primary-secondary vane structure of hydraulic motor

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Embodiment Construction

[0015] A blade structure for a hydraulic motor according to the present invention is shown in the figure. The sub-blade 5 is inserted into the lower middle position of the mother blade 2, and then the sub-blade and the mother blade are installed between the stator 1 and the rotor 7, wherein the mother blade 2 There is an oil channel 6 between the root of the rotor and the rotor 7, and the installation position of the mother blade 2 and the daughter blade 5 is a tooth-shaped structure, which increases the oil film area between the mother blade 2 and the daughter blade 5, and plays a better supporting role. There are two symmetrical long oil holes 3 in the blade 2, allowing the oil in the oil passage 6 to enter the arc-shaped groove on the top of the mother blade 2 from the long oil holes 3, so as to realize the up and down movement of the mother blade 2. The pressure is balanced. The long oil hole 3 includes two sections of thickness. When the hydraulic oil enters the thicker se...

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Abstract

The invention designs a primary-secondary vane structure of a hydraulic motor. The primary-secondary vane structure comprises a stator, a primary vane, a secondary vane and a rotor; a long oil hole and a short oil hole are respectively formed in the primary vane; an oil channel is arranged between the bottom of the primary vane and the rotor. The primary-secondary vane structure of the hydraulic motor has the advantages that the vane structure is symmetrical and meets the positive and negative rotating requirement of the hydraulic motor; during a working process, the primary vane is clung to an inner wall of the stator and does not fall off, so that a sealing chamber is formed so as to realize the normal work of the hydraulic motor; no spring is arranged on the root part of the vane and the service life of the vane is prolonged.

Description

technical field [0001] The invention relates to the field of hydraulic components, and specifically designs a blade structure for a hydraulic motor. Background technique [0002] The vane hydraulic motor is a widely used hydraulic motor. The vane is closely attached to the inner surface of the stator to form a closed pressure chamber for oil suction and oil discharge, and generates rotary motion to achieve work. The vane of the existing vane hydraulic motor The contact surface between the tip and the stator is relatively large, and the wear is serious; the spring installed at the root of the blade is prone to fatigue damage, which affects the service life of the blade motor. Contents of the invention [0003] Aiming at the existing technical defects, the present invention proposes a blade structure for hydraulic motors that ensures that the top of the blade does not separate from the stator and reduces blade wear, and is suitable for low-speed and high-speed continuous rot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03C2/30
CPCF03C2/304
Inventor 王晓晶孙宇微沈志琦
Owner HARBIN UNIV OF SCI & TECH
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