Constant plunger hydraulic motor with rotary cylinder with electrohydraulic valve variable torque feeding oil

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

Inactive Publication Date: 2007-11-21
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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  • Constant plunger hydraulic motor with rotary cylinder with electrohydraulic valve variable torque feeding oil
  • Constant plunger hydraulic motor with rotary cylinder with electrohydraulic valve variable torque feeding oil
  • Constant plunger hydraulic motor with rotary cylinder with electrohydraulic valve variable torque feeding oil

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Embodiment Construction

[0030] In conjunction with the accompanying drawings, the present invention will be described in detail below.

[0031] An electro-hydraulic switch variable torque oil distribution type rotary cylinder type quantitative 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 drive amplifier, and a brush , induction ring and electronic controller; switch variable torque valve control oil distribution assembly includes plunger and oil distribution valve group, oil distribution valve group consists of front cover plate, valve plate, rear cover plate, high-speed switch high-pressure oil supply valve and high-speed switch Composed of oil discharge / supplement valve; high-speed switch high-pressure oil supply valve and high-speed switch oil discharge / supplement valve are installed on the valve plate; one side of the valve plate is provided with a front c...

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PUM

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Abstract

The invention relates to hydraulic motor which includes the motor shell, the swashplate, the switch torque-change valve and oil controlling component, the electric-mechanism convertor, the driving amplifier, the electric brush, the induction ring and electron controller. The switch torque-change valve and oil controlling component includes the oil distributing valve groups which include the high-speed switch and high-pressure oil supplying valve and the high-speed switch oil drain / supplying valve; every valve is connected with the electric-mechanism convertor which is connected with the driving amplifier; the input of the high-speed switch and high-pressure oil supplying valve is connected with the pressure oil mouth; the output is connected with the plunger piston hollow which is also connected with the spring hollow of the high-speed switch oil drain / supplying valve and the other end is connected with the oil returning mouth. The invention can control by torque instead the switch and save much energy cost; the oil distributing component controlled by valve is installed on the top of the hydraulic motor piston cylinder to improve the driving pressure.

Description

technical field [0001] The invention relates to a hydraulic motor, in particular to an electro-hydraulic switch variable torque oil distribution type rotary cylinder barrel quantitative 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. Relat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B9/107F04B49/00F03C1/02F03C1/08F01B1/02
Inventor 顾临怡李世伦曹建伟王峰
Owner HANGZHOU YUKONG MECHANICAL & ELECTRICAL ENG
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