Rotary cylinder plunger hydraulic motor for independently adjusting oil absorption and discharge and torque shift method

An independent adjustment, hydraulic motor technology, applied in the hydraulic pilot switch variable torque rotary cylinder plunger hydraulic motor and variable torque fields, can solve the problems of instability, large variable mechanism stroke, slow response speed, etc.

Inactive Publication Date: 2013-04-24
HANGZHOU YUKONG MECHANICAL & ELECTRICAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in order to switch to the pump working condition to recover the energy in the process of deceleration and braking, the displacement adjustment mechanism of the hydraulic motor must cross the zero point. Stablize

Method used

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  • Rotary cylinder plunger hydraulic motor for independently adjusting oil absorption and discharge and torque shift method
  • Rotary cylinder plunger hydraulic motor for independently adjusting oil absorption and discharge and torque shift method
  • Rotary cylinder plunger hydraulic motor for independently adjusting oil absorption and discharge and torque shift method

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Embodiment Construction

[0084] In conjunction with the accompanying drawings, the present invention will be described in detail below through specific embodiments.

[0085] A kind of machine-hydraulic pilot switch variable torque rotary cylinder plunger hydraulic motor in this specific embodiment is refitted from an ordinary rotary cylinder type quantitative plunger hydraulic motor.

[0086] Remove the back cover and oil distribution plate of the plunger type quantitative hydraulic motor, process the end face of the plunger cylinder into a plane, install the oil distribution assembly of the present invention to the original position of the back cover and oil distribution plate of the hydraulic motor, and the plunger cylinder The cylinder and the oil distribution assembly are connected by pins. An ordinary rotary cylinder plunger type quantitative hydraulic motor has been refitted into a hydraulic motor with a torque-variable function of a machine-hydraulic pilot switch for independent adjustment of o...

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PUM

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Abstract

The invention relates to a hydraulic motor and a control method thereof, and aims to provide a hydraulic pilot switch variable torque rotary cylinder plunger hydraulic motor for independently adjusting oil absorption and discharge and a variable torque method. The hydraulic motor comprises a torque output mechanism, a quantitative tilting tray, a plunger cylinder, a plunger, a plunger cavity, an oil distribution valve set, an oil distribution tray set and an independent oil absorption and discharge adjusting variable torque driving mechanism. The switch variable torque method comprises the following steps of: adjusting a variable torque adjustor according to the requirement of the magnitude of the output torque, controlling the opening time of a high-speed switch and a high-voltage oil supply valve, adjusting and outputting duty ratio in real time, implementing variable torque control on the average torque in positive proportion to the duty ratio, and the like. The invention realizes variable torque control, and has the advantages of saving energy, improving the response speed, avoiding the zero passage problem, changing the driving direction of a pilot valve in positive and negative switching and the like.

Description

technical field [0001] The present invention relates to a hydraulic motor and its control method. More specifically, the present invention relates to a mechanical-hydraulic pilot switch variable torque rotary cylinder plunger hydraulic motor with independent adjustment of oil suction and discharge and a torque variable method. Background technique [0002] The plunger hydraulic motor relies on the pressure oil to act on the plunger so that the output shaft of the motor can move to 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 Most motors use end-face flow distribution, and the main device used in end-face flow 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 distributio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03C1/253F03C1/34F03C1/40
Inventor 李林顾临怡
Owner HANGZHOU YUKONG MECHANICAL & ELECTRICAL ENG
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