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A mechanical throttling speed regulating valve with adjustable damping hole

A technology of throttling speed regulation and damping holes, which is applied in the direction of mechanical equipment, fluid pressure actuators, servo motor components, etc., can solve the problems of the system that cannot quickly build up pressure, damage to hydraulic components, stalling, etc., and achieve compact structure and control The effect of high precision and accurate pressure control

Active Publication Date: 2021-08-27
BEIJING INST OF SPECIALIZED MACHINERY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is: how to solve the problem that the system cannot quickly build up pressure during the rapid closing of the spool, so that the hydraulic actuator will stall when it moves from high speed to low speed, or cause the system to hold pressure and cause damage to hydraulic components

Method used

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  • A mechanical throttling speed regulating valve with adjustable damping hole

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Embodiment Construction

[0020] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Such as figure 1 As shown, a mechanical throttling speed regulating valve with an adjustable damping hole provided by the present invention includes: a roller 1, a valve core 2, a retaining ring 3, a sealing ring 4, a guide belt 5, a valve body 6, and a return spring 9 , a nut 10, an O-ring 11 and a plug-in check valve; wherein, the valve body 6 is provided with a plunger chamber required for the sliding of the valve core 2, and the valve body 6 is provided with a positive oil chamber 7 and an anti-oil chamber 8. The two communicate through the flow area of ​​the valve core 2. There is an undercut groove at the connection between the oil port of the positive oil chamber 7 and the reverse oil chamber 8 and the pl...

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Abstract

The invention relates to a mechanical throttling speed regulating valve with an adjustable damping hole, which belongs to the technical field of hydraulic system control. The invention designs a mechanical throttling speed regulating valve with an adjustable damping hole, which can be used for throttling and deceleration at the end of the hydraulic actuator stroke, has accurate pressure control, can realize rapid pressure build-up and rapid deceleration of the hydraulic system, and can accurately adjust the The terminal speed of the actuator. It can be used for throttling and speed regulation of hydraulic actuators such as hydraulic cylinders. The invention has the advantages of compact structure, high control precision, easy realization, strong operability, safety and stability, and the like.

Description

technical field [0001] The invention belongs to the technical field of hydraulic system control, and in particular relates to a mechanical throttling speed regulating valve with adjustable damping holes. Background technique [0002] In the hydraulic system, in order to meet the rapid response and pressure change of the hydraulic actuator in different stroke states, it is necessary to adjust the flow and pressure in real time during the movement of the hydraulic actuator. For example, the hydraulic cylinder of the hydraulic actuator, especially under high load, the hydraulic cylinder rotates rapidly around the rotating shaft and extends out. When the movement changes from high speed to low speed, if the hydraulic system cannot establish the corresponding pressure demand in time and effectively, the load will be damaged. The speed is out of control, resulting in a serious accident. The commonly used electro-hydraulic proportional control throttle speed regulating valve, due ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 杨凯强张振华陈亮李春萍王飞
Owner BEIJING INST OF SPECIALIZED MACHINERY
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