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Four-column suspending and rocking hydraulic support

A hydraulic support and floating technology, which is applied in the direction of pillars/supports, mine roof supports, mining equipment, etc., can solve the problems of high labor intensity, inconvenient maintenance, and small working space, so as to improve safety and stability, reduce Intermediate production links, the effect of reducing intermediate links

Inactive Publication Date: 2016-01-06
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Problems existing in the four-link hydraulic support: 1: small working space, small ventilation area, poor safety performance, poor performance, and inconvenient maintenance; One-to-one redesign, trial production and performance testing. After passing the test, the final production of hydraulic supports can be carried out, and the production efficiency is quite low. Three: Due to the structural characteristics of the four-link hydraulic support, it cannot realize modular design and standardization Design, serial design, heavy design workload, long production cycle, high labor intensity and high production cost

Method used

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  • Four-column suspending and rocking hydraulic support
  • Four-column suspending and rocking hydraulic support
  • Four-column suspending and rocking hydraulic support

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: as figure 1 As shown, the four-column floating hydraulic support of the present invention is mainly composed of a top beam 1, a shield beam 2, an elevated frame 3, a base 4, a front suspension hydraulic column 6, a rear suspension hydraulic column 5, a bottom lifting device 7, and a push Device 8, scraper conveyor 9, side protection device 10, telescopic beam device 11, hydraulic control valve group 12, valve group bracket 13, front bridge 14, middle bridge 15 and rear bridge 16. The top beam 1, the shield beam 2, the elevated frame 3, and the base 4 are welded by steel plates or section steel. The front, middle and rear bridges 14, 15, 16 are welded by thick steel plates, and are welded with the base 4 as a whole. The hydraulic control valve group 12 adopts a manual operation valve group or an electro-hydraulic remote control valve group. The hydraulic control valve group 12 is the control center of each action of the support, and can be manually operate...

Embodiment 2

[0023] Embodiment 2: as figure 2 As shown, it is basically the same as Embodiment 1, and the same part is omitted. The difference is that the lower end of the elevating frame 3 at the rear of the support is hinged with the base 4, and a diagonal brace 17 that is used alone or arranged side by side is provided, the upper end is hinged with the elevating frame 3, and the lower end is hinged with the base 4.

Embodiment 3

[0024] Embodiment 3: as image 3 As shown, it is basically the same as Embodiment 1, and the same part is omitted. The difference is that between the shield beam 2 and the base 4 there is an adjusting jack 18 that is used alone or in parallel.

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Abstract

A four-column suspending and rocking hydraulic support comprises a top beam, a shield beam, an elevating frame, a base, four suspending hydraulic stand columns, a bottom lifting device, a pushing device, a sidewall protecting device, a telescopic beam device, a hydraulic control valve bank and a valve bank support. The four suspending hydraulic stand columns are arranged between the top beam and the base in parallel in two rows, the upper ends of the four suspending hydraulic stand columns are connected with the top beam through spherical hinges, and the lower ends of the four suspending hydraulic stand columns are connected with the base through spherical hinges. The telescopic beam device is arranged in the front end of the top beam, and the sidewall protecting device is hinged to the telescopic beam device. The upper end of the shield beam is hinged to the top beam, and the lower end of the shield beam is hinged to the upper end of the elevating frame. The base and the elevating frame are welded into a whole, and a gap bridge and the base are welded into a whole. The front end and the rear end of the pushing device are hinged to a scraper conveyer and the base respectively. The four-column suspending and rocking hydraulic support is suitable for fully-mechanized coal mining faces of underground coal mines, achieves modular design, standardized design and serialized design and has the advantages of being large in working space, ventilating area and working resistance, safe, reliable, good in stability and the like.

Description

technical field [0001] The invention relates to a four-column floating hydraulic support, which is especially suitable for roof support of comprehensive coal mining mechanized working faces in coal mines, and is also suitable for other occasions requiring support. Background technique [0002] Mine support equipment is one of the essential equipment in coal mines. The supporting equipment used in coal mines mainly includes four-bar linkage hydraulic supports, and the upper and lower movement tracks of the top beam of the four-link hydraulic supports are a double-button line. For details, see "Coal Mine Support Manual" published by Coal Industry Press in 1993. "Part Five, Chapter Three, Section Three and the contents of support equipment in the "Eleventh Five-Year Plan" national planning textbook "Mining Machinery" published by China University of Mining and Technology Press in 2010. The four-link hydraulic support started in the 1950s and was introduced into my country's co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D23/04
CPCE21D15/44E21D23/04
Inventor 李炳文洪建云刘俊赵继云陈世其赵亮
Owner CHINA UNIV OF MINING & TECH
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