Pressure stabilizing and liquid supplying method capable of adapting to hydraulic support movement

A hydraulic support and liquid supply technology, which is applied in the direction of pillars/supports, fluid pressure actuation devices, fluid pressure actuation system components, etc., can solve problems such as pressure fluctuations in the support and machine speed system, and avoid pressure Effects of wave phenomenon, stable liquid supply, and increased operating speed

Active Publication Date: 2018-01-19
山西理工智联科技有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, the current liquid supply control technology only aims at constant pressure liquid supply, without considering the working conditions of support follow-up speed and system pressure fluctuations

Method used

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  • Pressure stabilizing and liquid supplying method capable of adapting to hydraulic support movement
  • Pressure stabilizing and liquid supplying method capable of adapting to hydraulic support movement
  • Pressure stabilizing and liquid supplying method capable of adapting to hydraulic support movement

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Embodiment Construction

[0026] Specific embodiments of the present invention will be described in detail below in conjunction with specific drawings. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be regarded as isolated, and they can be combined with each other to achieve better technical effects. In the drawings of the following embodiments, the same reference numerals appearing in each drawing represent the same features or components, which can be applied in different embodiments.

[0027] During the specific action process of the hydraulic support, the liquid supply flow rate has a direct impact on the action speed of the support and the system pressure change, and different types of support actions have different demands on the liquid supply flow. The guiding ideology of the steady-pressure liquid supply theory in the action process of the support is: according to the specific action characteristics of a sin...

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Abstract

The invention relates to the technical field of working face hydraulic systems and provides a pressure stabilizing and liquid supplying method capable of adapting to hydraulic support movement. The support system hydraulic process is divided into three stages, namely, a system liquid leakage stage, an energy accumulator liquid supplying stage and a pump liquid supplying stage; support movement andpressure changing in the three stages are analyzed correspondingly to obtain the pressure stabilizing and liquid supplying flow quantity; and executable liquid supplying strategies are further formedaccording to the pressure stabilizing and liquid supplying flow quantity, and output of the liquid supplying flow quantity is specifically achieved through an executing mechanism. According to the pressure stabilizing and liquid supplying method capable of adapting to hydraulic support movement, by judging the conditions such as support movement and pressure changing, in order to increase the support movement speed and stabilize the hydraulic system pressure, liquid is efficiently and stably supplied in the hydraulic support movement process; in the liquid supplying optimizing process, the movement speed of a support is maintained and slightly increased, and when movement is completed, the set unloading pressure is right achieved, and the pressure fluctuation phenomenon is effectively avoided; and the propelling speed of the coal mine working face can be increased, the equipment loss of a hydraulic system is reduced, and the application prospects are considerable.

Description

technical field [0001] The invention relates to the technical field of working face hydraulic systems, in particular to a method for stabilizing and supplying liquid adapted to the action of a hydraulic support. Background technique [0002] The hydraulic system of the working face includes a hydraulic support system and a liquid supply system. The function of the hydraulic support is to follow the shearer to cut coal and follow up in time to ensure the roof support and normal advancement of the working face; the liquid supply system is the hydraulic support system. The function of the power source is to output sufficient high-pressure emulsion to ensure the rapid and stable operation of the hydraulic support following the shearer. [0003] The liquid supply goal of the hydraulic system of the working face is to provide sufficient emulsion to keep the pressure of the hydraulic system at a high pressure, so as to increase the action speed of the hydraulic support. The curren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F15B21/02E21D15/45
Inventor 付翔王然风董志勇曹文艳
Owner 山西理工智联科技有限公司
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