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Automatic variable valve of hydraulic motor

An automatic variable, hydraulic motor technology, used in servo motor components, fluid pressure actuation devices, fluid pressure actuation system safety, etc., can solve problems such as system damage and system failure, and achieve the protection of hydraulic components. Effect

Pending Publication Date: 2018-08-17
青岛力克川液压机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new hydraulic motor overload automatic reset valve, which aims to solve the problem of system failure caused by overload and system damage

Method used

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  • Automatic variable valve of hydraulic motor
  • Automatic variable valve of hydraulic motor
  • Automatic variable valve of hydraulic motor

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0019] Such as figure 1 A hydraulic motor automatic variable valve is shown, which includes a valve body 100, a high-pressure oil chamber 300 and a core chamber 400 arranged in the valve body and communicated through a through hole 200, and a variable oil passage 500 is arranged in the valve body to connect the core chamber 400, the core cavity is provided with a variable control spool 410 for controlling the high pressure oil chamber and the variable oil circuit on and off, and the variable control valve is provided with an automatic valve for automatically resetting the variable control spool when the motor exceeds the load. Reset the control spool 420, the variable oil circuit controls the variable control spool to move in the core ca...

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Abstract

The invention discloses an automatic variable valve of a hydraulic motor. The automatic variable valve comprises a valve body as well as a high-pressure oil cavity and a core cavity which are formed in the valve body and communicate with each other through a through hole, wherein a variable oil path controls a variable control valve element to move in the core cavity, so that communication betweenthe high-pressure oil cavity and the variable oil path is realized; system high-pressure oil in the high-pressure oil cavity enters the variable oil path to realize motor variable control; and when load is too great, the system high-pressure oil pushes the variable control valve element to return under matching of an automatic-return control valve element, so that communication between the high-pressure oil cavity and the variable oil path is cut off. In case of exceeding the load, conversion between high speed and low speed is realized, so that large-torque power output is realized, and caterpillar band driving equipment is automatically converted to work under a low-speed large-torque state, and therefore, system damages caused by system fault as load is exceeded are avoided.

Description

technical field [0001] The invention relates to the field of hydraulic motors, in particular to an automatic variable valve. Background technique [0002] At present, the traditional hydraulic motor control generally adopts the throttling valve to regulate the speed, which may cause a large amount of energy loss, and the speed regulation cannot be adjusted immediately. After assembly, the structural volume is still relatively large, and the pipeline connection is complicated. The seal between the pipeline and the pipeline is also easily damaged, and the manufacturing cost is also increased. [0003] Therefore, the prior art still needs further improvement and development. Contents of the invention [0004] The purpose of the present invention is to provide a new hydraulic motor overload automatic reset valve, aiming to solve the problem of system failure caused by overload and system damage. [0005] The technical solutions adopted are: [0006] An automatic variable va...

Claims

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Application Information

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IPC IPC(8): F15B13/02F15B20/00
CPCF15B13/02F15B20/00
Inventor 王金铂邵作顺高兵武
Owner 青岛力克川液压机械有限公司
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