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Mining thin-layer coal hydraulic support

A hydraulic support and thin-layer technology, which is applied in the direction of mine roof supports, pillars/supports, mining equipment, etc., can solve the problems of hydraulic rod and hydraulic chamber surface motion pair wear, entry into the hydraulic chamber, leakage, etc., to reduce work The effect of increasing time, improving airtightness, and improving work efficiency

Pending Publication Date: 2022-04-08
石校舆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the hydraulic support supports the coal rock formation. However, due to the long-term mining of coal resources underground, the underground mining environment is harsh, and a large amount of dust and oozing hydraulic oil are often attached to the surface of the hydraulic ejector rod supporting the hydraulic support. The hydraulic support changes the support structure, and the hydraulic ejector rod also changes accordingly. At the same time, the hydraulic oil mixed with dust may enter the hydraulic chamber, resulting in wear and leakage of the kinematic pair between the hydraulic rod and the surface of the hydraulic chamber;

Method used

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  • Mining thin-layer coal hydraulic support
  • Mining thin-layer coal hydraulic support
  • Mining thin-layer coal hydraulic support

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Experimental program
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Effect test

specific Embodiment approach

[0037] As a specific embodiment of the present invention, the linkage module 3 includes:

[0038] No. 1 connecting rod 31;

[0039] Chute 32, slider 33;

[0040] No. 1 fixed rod 34, No. 2 fixed rod 35;

[0041] The No. 1 connecting rod 31 is hinged with the mining thin-bed coal hydraulic support body 2; the No. 1 connecting rod 31 is fixedly connected with the No. 1 fixed rod 34; the No. 1 fixed rod 34 passes through the slider 33 and the chute 32 Sliding connection; the chute 32 is fixedly connected with the thin-bed coal hydraulic support body 2 for mining; the extension of the slider 33 is fixedly connected with the second fixed rod 35 .

[0042] As a specific embodiment of the present invention, the wiping module 4 includes:

[0043] A scraper ring 41, which is slidably connected to the body 2 of the mining thin-bed coal hydraulic support;

[0044] The fixed plate 42; the fixed plate 42 is fixedly connected with the wiper ring 41; the fixed plate 42 is fixedly connecte...

Embodiment approach

[0050] As a specific embodiment of the present invention, the main hydraulic rod of the thin-bed coal hydraulic support body 2 for mining is provided with a sealing scraper ring 5;

[0051]After the coal mining is completed, the mining thin-bed coal hydraulic support body 2 returns to the transport state. When the main hydraulic rod resets the stroke, the sealing scraper ring 5 sleeved on the main hydraulic rod will direct the main hydraulic pressure straight to the main hydraulic rod during the main hydraulic rod reset stroke. The dust on the surface of the rod and the leaked hydraulic oil are wiped again, which further reduces the dust entering the hydraulic cavity, reduces the phenomenon of friction pairs between the hydraulic cavity and the hydraulic rod being stuck, further improves the cleaning effect, and further reduces the mine The maintenance cost of the thin-bed coal hydraulic support body 2; at the same time, the sealing scraper ring 5 is set on the main hydraulic r...

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Abstract

The invention belongs to the technical field of hydraulic supports for coal mines, and particularly relates to a mining thin-layer coal hydraulic support which is characterized in that a cleaning unit is used for cleaning dust and seeping hydraulic oil on the mining thin-layer coal hydraulic support; the cleaning unit is located on the mining thin-layer coal hydraulic support body. The cleaning unit comprises a connecting rod module and a scraping module; the connecting rod module is connected with the wiping module; the scraping module is driven by the connecting rod module, the scraping module scrapes and cleans the mining thin-layer coal hydraulic support body, dust and seeping hydraulic oil on the surface of a main hydraulic rod of the mining thin-layer coal hydraulic support body are scraped and cleaned, and the situation that the dust on the surface of the main hydraulic rod enters a hydraulic cavity along with the main hydraulic rod is avoided; therefore, the friction pair between the main hydraulic cavity and the main hydraulic supporting rod is blocked, the cleanliness of the surface of the main hydraulic rod is improved, the working time of the mining thin-layer coal hydraulic support body is prolonged, and the maintenance cost of the mining thin-layer coal hydraulic support body is reduced.

Description

technical field [0001] The invention belongs to the technical field of hydraulic supports for coal mines, in particular to a thin-bed coal hydraulic support for mines. Background technique [0002] In the prior art, the hydraulic support supports the coal rock formation. However, due to the long-term mining of coal resources underground, the underground mining environment is harsh, and a large amount of dust and oozing hydraulic oil are often attached to the surface of the hydraulic ejector rod supporting the hydraulic support. The hydraulic support changes the support structure, and the hydraulic ejector rod also changes accordingly. At the same time, the hydraulic oil mixed with dust may enter the hydraulic chamber, resulting in wear and leakage of the kinematic pair between the hydraulic rod and the surface of the hydraulic chamber; [0003] In view of this, in order to overcome the above-mentioned technical problems, the present invention designs a kind of thin-bed coa...

Claims

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Application Information

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IPC IPC(8): E21D23/04E21D15/51E21F5/04B08B1/00B08B5/02
Inventor 石校舆刘一宇
Owner 石校舆