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A height measuring sensor and hydraulic support using the height measuring sensor

A technology of height measurement and sensors, which is applied in mine roof support, hydrostatic leveling, mining equipment, etc., can solve the problems of undisclosed rehydration parts, undisclosed liquid evaporation or overflow in hoses, etc., to achieve flexible and convenient use, reduce The effect of small height errors

Active Publication Date: 2018-05-29
BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, none of the above-mentioned reference documents discloses a structure to prevent the liquid in the hose from evaporating or overflowing, nor does it disclose a special rehydration component.

Method used

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  • A height measuring sensor and hydraulic support using the height measuring sensor
  • A height measuring sensor and hydraulic support using the height measuring sensor
  • A height measuring sensor and hydraulic support using the height measuring sensor

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Experimental program
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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0019] See attached figure 1 , the height measurement sensor is installed on the hydraulic support, and the height is measured by the method of hydrostatic pressure.

[0020] The height measurement sensor basically includes four parts: a pressure sensor, a bottom valve seat, a top member, and a liquid pipeline. The pressure sensor is installed on the bottom valve seat, and is fixed on the base of the hydraulic support through the bottom valve seat; the bottom valve seat is connected with the top component through a liquid pipeline, and the liquid pipeline is filled with liquid; the top component is a liquid storage device and is opened. There is an orifice, which communicates with the outside atmosphere to form an integral liquid circuit, and the pressure of the circuit is measured by a pressure sensor.

[0021] See attached figure 2 , the valve seat part...

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Abstract

The invention discloses a height measuring sensor which comprises a pressure sensor, a liquid pipeline, a bottom end valve seat and a top end member, wherein the bottom end valve seat comprises a liquid replenishing one-way valve; the pressure sensor is arranged in the bottom end valve seat; the bottom end valve seat is connected with the top end member through the liquid pipeline; the top end member is provided with a throttling port and is constructed into a structure with a function of weakening liquid evaporation. According to the height measuring sensor disclosed by the invention, the bottom valve seat structurally comprises two one-way valves which facilitate liquid replenishment and replacement of the pressure sensor, and are flexible and convenient in use; the influence of liquid loss and evaporation on measurement is avoided, so that the bottom valve seat structure is closer to engineering application; the top end member can select three different forms which are suitable for different working occasions; by using the three forms, height error caused by liquid evaporation can be effectively reduced.

Description

technical field [0001] The invention relates to a height measuring sensor, in particular to a measuring sensor used for measuring the height of downhole equipment such as a hydraulic support and a hydraulic support with the measuring sensor. Background technique [0002] With the continuous improvement of the automation level of the fully mechanized mining face in coal mines, the real-time and accurate measurement and reading of mining height data is becoming more and more important. As an important parameter for the control of the working face, it can be combined with the pressure data to reflect the activity rules of the roof and floor in a timely manner, and has a guiding effect on safe production; in addition, the height data is used for monitoring the coal production process, and the automatic monitoring is performed according to the coal cutting depth and height Calculating the coal output of the mine has positive practical significance. [0003] The existing methods ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C5/04E21D23/16
CPCE21D23/16G01C5/04
Inventor 向虎魏冠伟张龙涛李艳杰王伟耿相奎梁凯
Owner BEIJING TIANMA INTELLIGENT CONTROL TECH CO LTD
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