Polyphase multi-rhythm stepped plunger piston hydraulic motor

A hydraulic motor and plunger technology, applied in the field of hydraulic motors, can solve the problems of leaking hydraulic motor working pressure, hydraulic motor leakage, etc., and achieve the effect of saving energy consumption

Inactive Publication Date: 2009-02-04
HANGZHOU YUKONG MECHANICAL & ELECTRICAL ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relative rotation between the oil distribution plate and the cylinder body, they will wear each other to form an end face gap. The leakage of the hydraulic motor mainly comes from the end face leakage between the oil distribution plate and the cylinder body. major obstacle to stress

Method used

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  • Polyphase multi-rhythm stepped plunger piston hydraulic motor
  • Polyphase multi-rhythm stepped plunger piston hydraulic motor
  • Polyphase multi-rhythm stepped plunger piston hydraulic motor

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Experimental program
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Embodiment Construction

[0027] In conjunction with the accompanying drawings, the present invention will be described in detail below.

[0028] A multi-phase and multi-beat stepping plunger hydraulic motor, including a motor housing and a swash plate, and also includes a switch variable torque valve control oil distribution assembly, an electro-mechanical converter, a rotation angle detection sensor and an electronic controller; a switch variable torque valve Oil control and distribution components include plunger and oil distribution valve group. The oil distribution valve group is composed of front cover plate, valve plate, rear cover plate, high-speed switch high-pressure oil supply valve and high-speed switch oil discharge-fill valve; high-speed switch high-pressure supply valve The oil valve and the high-speed switch oil drain-fill valve are installed on the valve plate; the high-speed switch high-pressure oil supply valve and the high-speed switch oil drain-fill valve are composed of a push rod,...

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PUM

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Abstract

The invention relates to a fluid power motor with polyphase and polystep plunger. It makeup with shell,sloping cam plate,oil distributing unit with switching change-torque value,electromechanical convertor,turn angle detection sensor and electronic controller. Switching change-torque value makeup with plunger piston and nil distributing value group which contains front end plate,valve plate, lower end plate,high speed-optical switching heavy pressure oil valve and high speed-optical switching oil vent / slippage valve. Entry end of high speed-optical switching heavy pressure oil valve connects to pressure oil port and export end connects to cavity of plunger piston. Spring end of high speed-optical switching oil vent / slippage valve connects to cavity of plunger piston. The motor take real-time adjusting on duty cycle and control the switching change-torque. The invention save large quantity of energy and improve driving pressure of fluid power motor by without relative slip between oil distributing unit and end surfave of cylinder body.

Description

technical field [0001] The invention relates to a hydraulic motor, more specifically, to a multi-phase multi-beat stepping plunger hydraulic motor. Background technique [0002] The plunger hydraulic motor relies on the pressure oil to act on the plunger so that the motor output shaft obtains a certain torque. In order to make the plunger communicate with the pressure oil port and the oil return port alternately, a flow distribution device must be used. At present, the plunger hydraulic motor Most of the end face distribution is used, and the main device used in the end face distribution is the oil distribution plate. The oil distribution plate is similar to a plate valve. A plane with two arc-shaped ("waist") windows is attached to the end face of the cylinder block with a flow distribution hole, so that the cylinder block and the oil distribution plate are on the surface perpendicular to the motor shaft. Relatively rotating, the relative positions of the window on the oil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/08F15B21/02
Inventor 顾临怡李世伦曹建伟王峰
Owner HANGZHOU YUKONG MECHANICAL & ELECTRICAL ENG
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