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Working face hydraulic support multi-dimensional positioning system and method

A technology of hydraulic support and positioning system, which is applied in the direction of mine roof support, earth square drilling, mining equipment, etc., which can solve the problems of many installed equipment, difficult maintenance, poor reliability, etc., and achieve the effect of strengthening the management of the working face and ensuring safety

Pending Publication Date: 2021-12-14
CCTEG COAL MINING RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has a lot of equipment installed, difficult maintenance, coal dust and coal seam fluctuations on the working face seriously affect the laser measurement, and the reliability is poor
[0005] To sum up, the existing support positioning methods for fully mechanized coal mining face have great limitations, and it is difficult to realize the working face support system due to the constraints of complex environments such as large vibration, insufficient light, large coal dust, and limited space in the fully mechanized mining face. The accurate positioning of the space makes the forward movement of the support in the fully mechanized coal mining face in actual production mostly rely on manual operation based on experience, resulting in uneven support, poor reliability and low efficiency

Method used

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  • Working face hydraulic support multi-dimensional positioning system and method
  • Working face hydraulic support multi-dimensional positioning system and method

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Embodiment 1

[0030] The working surface involved in this embodiment, such as figure 1 As shown, it includes a scraper conveyor 1 , several hydraulic supports 2 connected to the scraper conveyor 1 , and push rods 3 connecting the scraper conveyor 1 and the hydraulic supports 2 . The scraper conveyor 1 includes a machine head 11 and several chutes 12 connected to the machine head 11 . Each chute 12 corresponds to a hydraulic support 2 . The hydraulic support 2 includes a base 21 , a front connecting rod 22 , a rear connecting rod 23 , a shield beam 24 , a balance jack 25 and a top beam 26 . Balance jack 25, front connecting rod 22, rear connecting rod 23 are connected on the base 21 successively from front to back, and one end of front connecting rod 22, rear connecting rod 23 is fixed on the base 21, and the other end connects an end of cover beam 24, and the cover The other end of the beam 24 is hinged to one end of the top beam 26 . One end of the balance jack 25 is fixed on the base 2...

Embodiment 2

[0044] Based on the same inventive concept, this embodiment discloses a multi-dimensional positioning method for a working face hydraulic support, using any one of the above-mentioned multi-dimensional positioning systems for a working face hydraulic support, such as figure 2 shown, including the following steps:

[0045] S1. Establish the coordinate system of the head 11 of the scraper conveyor 1 through the inertial navigation module 4 .

[0046] Install the inertial navigation module 4 at the center position of the head 11 of the scraper conveyor 1, set the center position as the coordinate origin O, the direction passing through the origin O pointing to the tail is the positive direction of the X-axis, and passing the origin O points to the fully mechanized mining work The direction of surface advancement is the positive direction of the Y axis, and the direction passing through the origin O and vertically upward to the coal seam roof is the positive direction of the Z ax...

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Abstract

The invention relates to a working face hydraulic support multi-dimensional positioning system and method. The working face hydraulic support multi-dimensional positioning system comprises an inertial navigation module, a chute acceleration sensor, a stroke sensor, a hydraulic support acceleration sensor, a monitoring substation and a main control module. The inertial navigation module is used for monitoring the position of a machine head of a scraper conveyor; the chute acceleration sensor is used for monitoring the displacement of a chute relative to the machine head so as to determine the position of the chute; the stroke sensor is used for determining the position of a base of the hydraulic support according to the position of the chute; the hydraulic support acceleration sensor is used for monitoring the spatial orientation and posture of the hydraulic support; the monitoring substation is used for monitoring numerical values of the stroke sensor and the hydraulic support acceleration sensor and transmitting the numerical values to the main control module; and the main control module is used for positioning the scraper conveyor and the hydraulic support according to the data of the monitoring substation. The working face hydraulic support multi-dimensional positioning system and method is simple and easy to implement, has high accuracy and is not influenced by illumination and coal dust.

Description

technical field [0001] The invention relates to a multi-dimensional positioning system and method for a hydraulic support of a working face, belonging to the technical field of underground coal mining, and in particular to automatic mining of a working face where the inclination angle of the coal seam changes greatly and conditions of upward or downward movement exist. Background technique [0002] my country's underground coal mining mostly adopts the wall system coal mining method. The working face is the main place for coal mining. The working face is generally 150-300m long. The top plate is supported by placing fully mechanized mining hydraulic supports. Below the top beam of the hydraulic support is a scraper conveyor. The scraper conveyor is hinged by several fixed-length chutes. The rear of each chute corresponds to a hydraulic support. The length of the chute is the same as the hydraulic pressure. The support width is the same, when the working front moves, the chute ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D23/12E21F17/18
CPCE21D23/12E21F17/18
Inventor 范志忠徐刚黄志增潘黎明
Owner CCTEG COAL MINING RES INST
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