A multi-step filling hydraulic support for the front roof beam
A technology of hydraulic support and front top beam, which is applied in the direction of mine roof supports, filling materials, mining equipment, etc., and can solve the problems of not forming a closed space for filling, unable to guarantee the solidification time of the rear filling, and unable to realize multi-step shifting. , to achieve the effect of ensuring the setting time
Active Publication Date: 2016-03-23
CATERPILLAR ZHENGZHOU
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Problems solved by technology
[0002] In the prior art, the four-column paste-filled hydraulic support used for goaf filling has the following disadvantages or deficiencies: 1) Since the support cannot be moved in multiple steps, the solidification time of the rear filling cannot be guaranteed; 2) The stability of the support is not stable High; 3) No filling confined space is formed
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[0008] In order to deeply understand the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0009] See attached figure 1 And attached figure 2 The rear end of the front top beam 1 of the front top beam multi-step filling hydraulic support provided by the present invention is a box body with an opening, the free end of the telescopic beam 3 extends into the box body, the rear end of the telescopic beam 3, the rear end The front end of the top beam 4 and the upper end of the upper link 7 are connected at one point, the front end of the telescopic beam jack 2 is connected to the front top beam 1, the rear end of the telescopic beam jack 2 is connected to the front end of the rear top beam 4, and the telescopic beam jack 2 Under the action of , the front top beam 1 produces relative movement relative to the telescopic beam 3, so that the front top beam 1 has a telescopic distance, a...
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The invention discloses a multi-step-pitch filling hydraulic support of a front top beam which is used for filling a worked out section and belongs to the technical field of underground coal mine comprehensive mechanization coal face timbering equipment. The back end of a front top beam of the support is provided with an open box body. A free end of a flexible beam extends into the box body. The back end of the flexible beam, the front end of a back top beam and the upper end of an upper connecting rod are connected into one point. The front end of a flexible beam jack is connected to the front top beam. The back end of the flexible beam jack is connected to the front end of the back top beam. Under the action of the flexible beam jack, the front top beam produces relative movement to the flexible beam, the front top beam is enabled to possess a flexible distance, and the flexible distance can be gradually regulated. Under the action of the flexible beam jack on the support, the front top beam produces relative movement to the flexible beam, the front top beam is enabled to possess a flexible distance, and the flexible distance can be gradually regulated. Therefore, multi-step-pitch support movement of the support is achieved and setting time of back filling is guaranteed.
Description
technical field [0001] The invention relates to the technical field of support equipment for comprehensive mechanized coal mining working faces in underground coal mines, in particular to a multi-step filling hydraulic support for front top beams used for filling goafs. Background technique [0002] In the prior art, the four-column paste-filled hydraulic support used for goaf filling has the following disadvantages or deficiencies: 1) Since the support cannot be moved in multiple steps, the solidification time of the rear filling cannot be guaranteed; 2) The stability of the support is not stable High; 3) No filling confined space is formed. Contents of the invention [0003] In order to solve the above problems, the present invention proposes a front top beam multi-step filling hydraulic support that can realize multi-step shifting, has high stability and has the ability to fill confined spaces. [0004] The rear end of the front roof beam multi-step filling hydraulic s...
Claims
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IPC IPC(8): E21D23/04E21D23/03E21D23/16E21F15/00
Inventor 魏连河贾洪现郭振宇夏亮秦树振付超赵凤微崔磊史磊何武曹银苟郑永强梁鹤
Owner CATERPILLAR ZHENGZHOU