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Mechanical throttling governing 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 hydraulic component damage, stall, and the system cannot quickly build up pressure, etc., to achieve high control accuracy, The effect of accurate pressure control and compact structure

Active Publication Date: 2020-02-21
BEIJING INST OF SPECIALIZED MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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  • Mechanical throttling governing 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 embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0021] Such as figure 1 As shown, the present invention provides a mechanical throttle valve with adjustable damping holes, including: roller 1, valve core 2, elastic retaining ring 3, sealing ring 4, guide belt 5, valve body 6, return spring 9 , Nut 10, O-ring 11 and cartridge check valve; among them, the valve body 6 is provided with a plunger cavity required for the sliding of the valve core 2, and the valve body 6 is provided with a positive oil cavity 7 and an anti-oil cavity 8. The two are communicated through the flow area of ​​the valve core 2. There are undercut grooves at the connection between the oil ports of the positive oil chamber 7 and the anti-oil chamber 8 and the plunger chamber in the valve body 6. The upper part o...

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Abstract

The invention relates to a mechanical throttling governing valve with an adjustable damping hole and belongs to the technical field of hydraulic system control. The mechanical throttling governing valve with the adjustable damping hole is designed and can be used for throttling deceleration of the stroke tail end of a hydraulic executing element, pressure control is accurate, fast pressure establishment and fast deceleration of a hydraulic system are achieved, and the tail end speed of the hydraulic executing element can be accurately adjusted. The mechanical throttling governing valve can beused for throttling governing of hydraulic executing element such as a hydraulic oil cylinder. The mechanical throttling governing valve has the beneficial effects of being compact in structure, highin control precision, easy to achieve, high in operability, safe, stable and the like.

Description

Technical field [0001] The invention belongs to the technical field of hydraulic system control, and specifically relates to a mechanical throttle speed regulating valve with adjustable damping holes. Background technique [0002] In the hydraulic system, in order to satisfy the rapid response of the speed and pressure changes 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. Such as hydraulic actuator hydraulic cylinder, especially under high load, the hydraulic cylinder quickly rotates around the shaft and extends. When the high speed is quickly changed to low speed, if the hydraulic system cannot establish the corresponding pressure demand in time and effectively, it will cause the load The speed is out of control, causing serious accidents. The electro-hydraulic proportional control throttle speed control valve is commonly used. Due to the influence of signal conve...

Claims

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Application Information

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Patent Type & Authority Applications(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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