Self-walking coal mine roadway temporary supporting structure and self-walking method
A coal mine roadway and temporary support technology, which is applied in the direction of mine roof support, mining equipment, earthwork drilling and mining, etc., can solve the problems of coal mining efficiency and long installation time in coal mining face roadway collapse, so as to increase practicability and increase Applicability, the effect of increasing the area
Pending Publication Date: 2021-01-29
GUIZHOU PANJIANG MINING MACHINERY
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a self-propelled coal mine roadway temporary support structure and a self-propelled method, to ensure that at least one group of hydraulic supports supports the top of the coal mining face, and to solve the problem of using traditional hydraulic supports. It takes too long to install the support and operation method in the coal mining face, which leads to the collapse of the coal mining face roadway and low coal mining efficiency
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[0030] refer to figure 1 , the present embodiment provides a self-propelled coal mine roadway temporary support structure, which includes a number of door-shaped outrigger groups 1 of not less than 4 groups; the door-shaped outrigger groups 1 are arranged in sequence, and each The door-shaped outrigger group 1 can be expanded and contracted in the vertical direction; several pressure-bearing longitudinal beams 2 are arranged on the upper top of the door-shaped outrigger group 1; the length of each pressure-bearing longitudinal beam 2 needs to span at least three groups A door-shaped outrigger group 1; a walking hydraulic jack 3 is also arranged between the door-shaped outrigger groups in the middle.
[0031] There are four sets of door-shaped outriggers 1, which are arranged in sequence from the direction of the coal mining work to the outside of the roadway: the first door-shaped outriggers 1A, the second door-shaped outriggers 1B, the third door-shaped outriggers 1C, The fo...
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The invention discloses a self-walking coal mine roadway temporary supporting structure, and belongs to the field of coal mining supporting equipment. The structure comprises at least four door-shapedsupporting leg sets; the door-shaped supporting leg sets are sequentially arranged, and each door-shaped supporting leg set can stretch out and draw back in the vertical direction; a plurality of pressure-bearing longitudinal beams are arranged at the upper tops of the door-shaped supporting leg sets; the length of each pressure-bearing longitudinal beam at least needs to cross over three door-shaped supporting leg sets; and a walking hydraulic jack is arranged between the door-shaped supporting leg sets in the middle. According to the structure, it is guaranteed that at least one hydraulic support can support the top of a coal face, and the problems that when a traditional hydraulic support and an operation method are used on the coal face, the mounting time is overlong, and then the roadway collapse of the coal face and low coal mining efficiency are caused are solved.
Description
technical field [0001] The invention relates to the field of support equipment for coal mine mining, in particular to a self-propelled coal mine roadway temporary support structure and a self-propelled method. Background technique [0002] Due to the complexity of my country's national conditions and geological conditions of coal fields, blasting and fully mechanized mining are still the most important mining methods in coal mines. Most blasting working faces use single hydraulic props and hinged top beams to support the top, and some coal mines also use metal props or wooden pillars for support. During the excavation process, when the fully mechanized excavator exceeds a certain distance from the support structure, the coal cutting should be stopped, and then the mining area should be cleaned up, and the top of the roadway in the goaf should be supported by hydraulic supports, metal pillars or wooden pillars. Coal mining can only be resumed after protection. This process ...
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IPC IPC(8): E21D23/04E21D23/16E21D23/20
CPCE21D23/04E21D23/16E21D23/20
Inventor 王正王金强贾卫峰王炎易勇王旭
Owner GUIZHOU PANJIANG MINING MACHINERY