Secondary rocker fully-mechanized coal mining hydraulic support
A technology of hydraulic support and secondary rocker, which is used in mine roof support, mining equipment, earthwork drilling and other directions, can solve the limitation of effective coal mining height range of floating hydraulic support, affect the normal use of support, support dumping and sliding To avoid problems such as shifting, to achieve the effect of a large range of effective coal mining heights, preventing dumping and skewing, and facilitating installation
Inactive Publication Date: 2017-02-15
XUZHOU SHENAN MINE MACHINERY TECH CO LTD
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Problems solved by technology
Since the moving jack stroke of the floating hydraulic support pushing device has only one moving distance, there is no extra stroke to adjust the change of the beam end distance, so the effective coal mining height range of the floating hydraulic support is limited
However, there is a bridge at the rear of the floating hydraulic support near the column, which structurally limits the stroke of the jack, so the floating hydraulic support will be restricted when used in fully mechanized mining face, and only one can be implemented. One side support method
[0003] In the process of moving the floating hydraulic support, the support may fall and slide along the inclination and direction of the working surface, which will affect the normal use of the support. Therefore, the present invention has improved
Method used
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Embodiment
[0032]Embodiment: A secondary rocker fully mechanized mining hydraulic support of the present invention is mainly composed of a top beam 1, a cover beam 2, a horse 3, a base 4, an adjustment jack 5, two suspended hydraulic columns 6, a bottom lifting device 7, a large Stroke pushing device 8, scraper conveyor 9, side protection device 10, telescopic beam device 11, main pipeline assembly 12, hydraulic control valve group 13, valve group bracket 14, front bridge 15, middle bridge 16, rear bridge 17, frame adjustment jack 18, base front hinged shaft 19, base rear hinged shaft 20, immediately hinged shaft 21, shield beam hinged shaft 22 etc. form. The top beam 1, the cover beam 2, the bridge 3, and the base 4 are welded by steel plates and section steel. The front bridge 15, the middle bridge 16 and the rear bridge 17 are welded by thick steel plates and welded with the base 4 as a whole. The main pipeline assembly 12 is composed of a liquid inlet pipe, a liquid return pipe and ...
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The invention relates to a secondary rocker fully-mechanized coal mining hydraulic support. A large stroke push unit is used for adjusting changes of the beam end distance; as the jack pushing stroke is increased, the secondary rocker fully-mechanized coal mining hydraulic support can achieve full-stroke effective coal mining height; and in addition, an adjusting jack is installed on a standing stance to adjust the distance between adjacent supports, and the anti-falling and anti-sliding effect is achieved.
Description
technical field [0001] The invention relates to a secondary rocker fully mechanized mining 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] The invention is an improved secondary rocker fully mechanized mining hydraulic support aimed at the problems existing in the floating hydraulic support. When the floating hydraulic support is mining coal at different heights, the beam end distance (the distance between the front end of the hydraulic support top beam and the coal wall) changes. In order to prevent the shearer from cutting the top beam during coal mining, it is necessary to ensure that the support has enough space. Beam end distance. Because the moving jack stroke of the floating hydraulic support pushing device has only one frame-moving step distance, there is no extra stroke to adjust the change o...
Claims
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Login to View More IPC IPC(8): E21D23/04E21D23/18E21D23/26
CPCE21D23/04E21D23/0409E21D23/18E21D23/26
Inventor 洪建云刘俊李宇洋李炳文
Owner XUZHOU SHENAN MINE MACHINERY TECH CO LTD