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Valve-based pressure regulation method

A technology of pressure adjustment and adjustment method, which is applied in the direction of fluid pressure actuators, servo motor components, servo meter circuits, etc., and can solve problems such as impact on load, load impact, and unfavorable hydraulic systems, so as to reduce impact and reduce pressure fluctuating effect

Active Publication Date: 2020-09-11
SHANGHAI SHUNNUO MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. When the hydraulic oil pressure from the hydraulic system fluctuates, the hydraulic oil at the outlet oil of the pressure reducing valve will also fluctuate proportionally, which will cause large fluctuations in the actuator, which will affect the work and use of the actuator. Life is unfavorable, and it will generate a lot of noise, and it will also affect the load connected to the actuator
[0007] 2. When the operation of the load connected to the actuator fluctuates, the pressure of the hydraulic oil at the oil inlet of the above pressure reducing valve will also fluctuate, which is not good for the hydraulic system and will also have a great impact on the load at the same time

Method used

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Embodiment Construction

[0056] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0057] The embodiment of the present invention discloses a pressure adjustment method based on a valve device. The pressure adjustment method is used to adjust the pressure in time when the pressure of the hydraulic system where the valve device is located fluctuates greatly. The valve device is a booster valve or Pressure reducing valve, the valve device includes a main valve 100, a pilot valve 200 and an active drive mechanism installed on the main valve, the main valve 100 includes a main valve body 10 and a main valve core 20 arranged in the main valve body 10; The valve body 10 is provided with an oil inlet 11 and an oil outlet 12. The oil inlet 11 communicates with the system pipeline of the hydraulic system, and the oil out...

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Abstract

The invention discloses a pressure regulating method based on a valve device. The method comprises the following steps of acquiring rated pressure set in a hydraulic system; acquiring actual pressurein the hydraulic system; comparing the actual pressure with the rated pressure to obtain a comparison result; and making a choice whether a main valve core is driven by an active driving mechanism tochange the flow passage section formed between an oil inlet and an oil outlet according to the comparison result. The main valve core is actively driven by the active driving mechanism, so that the pressure fluctuation of the oil outlet is reduced, and the influence of the pressure fluctuation on an actuating element can be minimized.

Description

technical field [0001] The invention relates to the technical field of hydraulic control, in particular to a pressure regulating method based on a valve device. Background technique [0002] Hydraulic systems are used in all areas of industry, technology and life. Generally, the hydraulic system includes hydraulic oil storage equipment (such as oil tank), hydraulic power mechanism (such as hydraulic pump), hydraulic control components (such as reversing valve, relief valve, pressure reducing valve, boosting valve, etc.), execution Components (such as hydraulic cylinders, hydraulic motors, etc.) and hydraulic lines connecting the above components and equipment. Among them, the hydraulic oil storage device is used to provide the required hydraulic oil for the whole system, the hydraulic power mechanism is used to absorb the hydraulic oil to supply the hydraulic oil to the actuator, and the actuator converts the kinetic energy of the hydraulic oil into mechanical energy to dri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
CPCF15B13/02F15B2211/505F15B2211/526
Inventor 王爱菊
Owner SHANGHAI SHUNNUO MACHINERY