Telescopic strut capable of preventing U-shaped steel from deforming
A type of steel and beam technology, applied in the direction of pillars/supports, mining equipment, earth square drilling and mining, etc., can solve problems such as support deformation, large-scale landslides, and expansion of disaster areas, and achieve the effect of preventing deformation
Inactive Publication Date: 2012-07-11
安阳鑫龙煤业(集团)红岭煤业有限责任公司
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Problems solved by technology
The traditional U-shaped steel frame shed support is often deformed due to excessive pressure in the roadway, which affects the quality of the project and also has a certain impact on safety. The severely deformed steel frame shed support loses its supporting capacity, resulting in roof caving or even large-scale landslides. The disaster area expanded, seriously threatening the safety of underground workers and the entire mine
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[0009] The device consists of four U-shaped steel beams 1, two sets of U-shaped steel clips 2, two π-shaped beams 3 and four single hydraulic props 4, in which every two U-shaped steel beams 1 are connected end to end by U-shaped steel clips 2 to form a Retractable beam. Before use, the telescopic beam can flexibly set the overall length according to the specific size of the steel frame shed support 5 in the roadway. When the left and right pressure of the roadway exceeds a certain value during use, its overall length is shortened, and the shortened value is intuitively displayed by its own scale. The two ends of the telescopic beam are fixed on the upper parts of both ends of the π-shaped beam 3, the opening of the groove of the π-shaped beam 3 is downward, the top of the single hydraulic prop 4 is fixed on the bottom of the groove at both ends of the π-shaped beam 3, and the single hydraulic prop 4 The base is fixed on the roadway floor 6. The single hydraulic prop 4 bears ...
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A telescopic strut capable of preventing U-shaped steel from deforming belongs to the technical field of underground equipment for a coal mine, and relates to a telescopic support device that is used for preventing U-shaped steel from deforming and is used underground in the coal mine. The telescopic strut comprises the technical scheme as follows: the telescopic strut comprises U-shaped steel cross beams, U-shaped steel clips, Pi-shaped beams and individual hydraulic props, wherein every two U-shaped steel cross beams are connected to form a telescopic cross beam, the two ends of which are fixed at the upper parts of the two ends of each Pi-shaped beam; in addition, the top ends of the individual hydraulic props are fixed at the bottoms of grooves formed in the two ends of the Pi-shaped beams, and the bases of the individual hydraulic props are fixed on a laneway bottom plate. The telescopic strut has the advantages as follows: the telescopic strut is used as a deformation-resisting auxiliary device for the laneway steel erecting shed support, can adapt to different cross sections of a laneway, can bear four pressures from the laneway in the upper direction, the lower direction, the left direction and the right direction at the same time, can prevent the steel erecting shed support from deforming to the utmost extent, and can also lead working personnel to visually observe an existential threat through the pressure bearing states of the telescopic cross beam and the hydraulic props so as to develop a treatment solution in time to eliminate disasters and dangers in the bud of accidents.
Description
technical field [0001] The invention belongs to the technical field of coal mine underground equipment, and relates to a scalable U-shaped steel anti-deformation supporting device used in coal mine underground. Background technique [0002] Roof accident is one of the main disasters in coal mines. It is a landslide accident caused by the destruction of supporting equipment under the influence of various pressures on the coal seam, which poses a serious threat to safe production and workers' lives. At present, U-shaped steel frame support is mostly used for underground support. The traditional U-shaped steel frame shed support is often deformed due to excessive pressure in the roadway, which affects the quality of the project and also has a certain impact on safety. The severely deformed steel frame shed support loses its supporting capacity, resulting in roof caving or even large-scale landslides. The disaster area expanded, seriously threatening the safety of underground w...
Claims
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IPC IPC(8): E21D17/01E21D15/51
Inventor 金明乾牛绍鹏路希伟
Owner 安阳鑫龙煤业(集团)红岭煤业有限责任公司