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

A hydraulic motor and rotary cylinder technology, which is applied in the field of hydraulic motors, can solve problems such as hydraulic motor leakage and leakage of hydraulic motor working pressure, and achieve the effects of energy saving and switch variable torque control

Inactive Publication Date: 2009-09-09
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 Oil discharge and replenishment valves; the high-speed switch high-pressure oil supply valve and the high-speed switch oil discharge and replenishment valve are both installed on the valve plate; one side of the valve plate is close t...

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PUM

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Abstract

The invention relates to a hydraulic motor and aims at providing an electro-hydraulic switch variable torque oil distribution type rotary cylinder type quantitative plunger hydraulic motor. The motor includes a motor housing, a swash plate, a switch variable torque valve-controlled oil distribution assembly, an electro-mechanical converter, a drive amplifier, a brush, an induction ring and an electronic controller; the switch variable torque valve-controlled oil distribution assembly includes an oil distribution valve The oil distribution valve group includes a high-speed switch high-pressure oil supply valve and a high-speed switch oil discharge / fill valve; each valve is connected to an electro-mechanical converter, and each electro-mechanical converter is connected to a drive amplifier; the high-speed switch high-voltage supply valve The inlet port of the oil valve is connected to the pressure oil port, and the outlet port is connected to the plunger chamber of the plunger; one end of the spring chamber of the high-speed switch oil discharge / fill valve is connected to the plunger chamber of the plunger, and the other end is connected to the oil return port . The invention realizes switch variable torque control and saves a lot of energy consumption; the valve-controlled oil distribution component is directly installed on the end face of the hydraulic motor plunger cylinder body, which greatly improves the driving pressure of the hydraulic motor.

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 Patents(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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