Mechanical-hydraulic leading switch variable-torque rotating-cylinder plunger hydraulic motor and torque-changing method

A technology of hydraulic motor and rotary cylinder, which is applied in the field of mechanical hydraulic pilot switch variable torque rotary cylinder plunger hydraulic motor and variable torque, which can solve the problems of large stroke, instability and slow response speed of variable mechanism

Inactive Publication Date: 2009-04-08
杭州慧翔机电控制工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Mechanical-hydraulic leading switch variable-torque rotating-cylinder plunger hydraulic motor and torque-changing method
  • Mechanical-hydraulic leading switch variable-torque rotating-cylinder plunger hydraulic motor and torque-changing method
  • Mechanical-hydraulic leading switch variable-torque rotating-cylinder plunger hydraulic motor and torque-changing method

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Embodiment Construction

[0060] In conjunction with the accompanying drawings, the present invention will be described in detail below through specific embodiments.

[0061] 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.

[0062] 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, and process pin holes between every two plunger cavities of the plunger cylinder, and the position of the pin holes is the same as The oil distribution valve bodies in the present invention are consistent. The oil distribution assembly of the present invention is installed on the original rear cover and oil distribution plate position of the hydraulic motor, and the pin is inserted into the newly processed pin hole of the plunger cylinder. An ordinary rotar...

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Abstract

The invention relates to a hydraulic motor and a control method thereof, aiming at providing a mechanical-hydraulic guide switch variable torque rotating cylinder plunger hydraulic motor and a torque varying method. The motor comprises a torque output mechanism, a quantitative inclined dish, a plunger cylinder, a plunger, a plunger cavity, an oil distribution valve group, an oil distribution disk and a drive mechanism for mechanical-hydraulic guide switch torque varying. The torque varying method includes the following steps: according to requirements on the size of the output torque, a variable torque regulator is adjusted; the opening time of a high-speed switch high-pressure oil supply valve is controlled; and average torque proportional to the duty ratio is output and the torque varying control is realized. The invention realizes the torque varying control, and has the advantages that the energy is saved, the response speed is increased, the zero crossing problem is avoided, and the like.

Description

technical field [0001] The invention relates to a hydraulic motor and a control method thereof. More specifically, the invention relates to a hydraulic motor with a hydraulic pilot switch and a variable torque rotary cylinder plunger hydraulic motor 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 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 distribut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03C1/247F03C1/34F04B1/26F15B15/08
Inventor 顾临怡
Owner 杭州慧翔机电控制工程有限公司
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