Head-to-tail alternate leading hydraulic support
A hydraulic support, alternate head and tail technology, applied in mine roof support, mining equipment, earthwork drilling and other directions, can solve problems such as imperfection
Inactive Publication Date: 2020-09-01
GUIZHOU NORMAL UNIVERSITY
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Problems solved by technology
As far as the current advanced hydraulic support is concerned, although it is better than the traditional support method, it is a newborn after all, and there are still many imperfections
Method used
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[0030] The specific implementation, structure, features and effects of the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
[0031] see Figure 1-14A head-to-tail alternate leading hydraulic support, characterized in that: the two sides of the upper ends of the support A1 and the support B4 are respectively fixedly connected by the hydraulic column A2 and the hydraulic column B5, and the middle part of the upper end is inserted into the X-shaped support beam 3, and the support A1 , Bracket B4 is composed of beam A6, positioning hole 7, hydraulic column seat A8, miniature device 9, hydraulic column C10, hydraulic column seat B11, beam B12, support column A13, shaft A14, chute A15, support column B16, positioning Composed of pin 17, chute B18, chute C19, positioning pin sleeve 20, and chuck A21, the left and right ends of the beam A6 are respectively fixedly connected to the hydraulic column base A8, and ...
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The invention discloses a head and tail alternate type advanced hydraulic support. The two sides of the upper ends of a support A and a support B are fixedly connected through hydraulic columns A andhydraulic columns B, an X supporting beam is clamped into the portion between the middles of the upper ends of the support A and the support B, the left ends and the right ends of cross beams A are fixedly connected with hydraulic column seats A separately, hydraulic columns C are mounted on the two hydraulic column seats A separately, hydraulic column seats B are mounted on the two hydraulic columns C separately, cross beams B are fixedly mounted between the two hydraulic column seats B, the two hydraulic column seats A and the two hydraulic column seats B are fixedly connected with four fineshrinking devices separately, shafts A are inserted into the middle portions of supporting columns A and supporting columns B and connected with the middle portions to form X shapes, clamping heads Aare arranged at the upper ends of the supporting columns A and the supporting columns B separately, positioning pin bushes are arranged at the lower ends of the supporting columns A and the supporting columns B separately, and the clamping heads A and the positioning pin bushes are clamped into sliding grooves B and sliding grooves C formed in the cross beams A and the cross beams B separately. Multiple times of repeated propping are not needed, and the operation is completed only through one time of supporting.
Description
technical field [0001] The invention belongs to the technical field of industrial and mining machinery, and in particular relates to a head-to-tail alternate leading hydraulic support. Background technique [0002] In the current production of raw coal underground in coal mines, the comprehensive mechanized coal mining face can be said to be a highly mechanized and automated configuration from the perspective of coal stripping, coal removal, and coal transportation. The life safety of employees has been greatly guaranteed, and the production efficiency is extremely high. However, the advance support of the upper return air lane and the lower transport lane has not changed much, and people's attention is not high. The original support methods for the upper and lower exits are: single hydraulic prop with metal hinged top beam support, double row of wooden columns plus beam support, single hydraulic prop plate beam support, bolt anchor net support, U-shaped steel frame Shed s...
Claims
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IPC IPC(8): E21D23/04E21D23/16
CPCE21D23/04E21D23/16
Inventor 张帅张振国蔡雄飞王济黄启芬谢雅典孙媛媛
Owner GUIZHOU NORMAL UNIVERSITY