Buffering device for gangue blocking support of inclined coal seam

Abstract

The utility model discloses an inclined coal seam waste rock blocking support buffering device which comprises a plurality of spring buffers, one end of each spring buffer is connected with a base of a waste rock blocking support, and the other end of each spring buffer is connected with a lower waste rock blocking plate of the waste rock blocking support. The inclined coal seam gangue blocking support buffering device solves the problems that in the implementation process of existing gob-side entry retaining, a gangue blocking support is prone to toppling over due to impact of a rock layer of a gob caving zone, a gangue blocking plate deforms, efficient arrangement of the gob-side entry retaining is difficult to adapt, and stability is poor.

Description

Technical Field

[0001] The utility model belongs to the technical field of gob-side lane retaining support equipment in coal mines and relates to a buffer device for a sloped coal seam gangue retaining support. Background Art

[0002] With the continuous increase in the intensity of coal mining in my country, the situation of coal resources has become increasingly tense, and the disadvantages of the traditional mining method of leaving coal pillars in sections have become increasingly significant. In order to improve the coal recovery rate, reduce resource waste, and alleviate the problems of mining tension, more and more mines have begun to adopt and promote the mining technology of leaving tunnels along the goaf. The mining technology of leaving tunnels along the goaf can realize the rational development of coal resources, improve the coal recovery rate, improve the maintenance of tunnels, reduce the amount of tunnel excavation, improve the safety level of mines and improve the technical and economic benefits of mines. In order to improve the construction efficiency of leaving tunnels along the goaf and further realize the automation and mechanization of supporting equipment, the utility model relates to a set of coal mine leaving tunnels along the goaf support equipment, which is used to isolate the goaf area and the gangue of the wall of the leaving tunnels along the goaf, and realize the automation of the implementation of leaving tunnels along the goaf.

[0003] At present, most coal mines use ordinary gangue retaining supports beside the roadway. When facing the impact of gangue, the following situations are prone to occur: (1) Ordinary gangue retaining supports are prone to tipping over when facing the pushing effect of the rock layer in the collapsed zone of the goaf on the inclined coal seam, which makes it difficult to recover the gangue retaining supports on the working face. (2) The gangue retaining plates of ordinary gangue retaining supports are impacted by the collapsed rock layer in the goaf, causing the retaining plates to deform and unable to recover on their own. The original space cannot be maintained, resulting in a slowdown in the implementation of the goaf-side roadway retention and the inability to achieve efficient arrangement of the goaf-side roadway retention. (3) During the recovery process of ordinary gangue retaining supports, the goaf-side gangue collapses with them, affecting the swinging of the supports and the subsequent flexible mold casting.

[0004] Therefore, it is necessary to design a gangue retaining support that uses a spring buffer device to prevent gangue collision, so as to solve the problem of gangue in inclined coal seams colliding with the gangue retaining support. Utility Model Content

[0005] The utility model aims to provide a buffer device for a gangue retaining support of an inclined coal seam, so as to solve the problems that the gangue retaining support is easily overturned and the gangue retaining plate is deformed by the impact of the rock layer in the collapse zone of the goaf during the implementation of the existing goaf retaining, and it is difficult to adapt to the efficient arrangement of the goaf retaining and has poor stability.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a buffer device for an inclined coal seam gangue retaining support, comprising a plurality of spring buffers, one end of each of the spring buffers being connected to the base of the gangue retaining support, and the other end of the spring buffer being connected to the lower gangue retaining plate of the gangue retaining support.

[0007] As a preferred technical solution of the utility model, two ends of the spring buffer are respectively connected to the base of the rock baffle support and the lower rock baffle plate through pins.

[0008] As a preferred technical solution of the utility model, the base of the rock retaining bracket and the lower rock retaining plate are both provided with connecting seats, and the pin shaft is arranged on the corresponding connecting seats.

[0009] As a preferred technical solution of the present utility model, a plurality of the spring buffers are arranged at equal intervals.

[0010] As a preferred technical solution of the present utility model, a plurality of the spring buffers are arranged at unequal intervals.

[0011] The beneficial effects of the utility model are as follows: (1) The utility model is a buffer device for a inclined coal seam gangue retaining support, in which a spring buffer device is installed between the gangue retaining plate and the base, which can cope with the stronger gangue impact of the inclined coal seam, reduce the risk of the gangue retaining support toppling, and enhance the stability of the gangue retaining support to ensure efficient coal mining and goaf-side tunneling arrangement. (2) The utility model is a buffer device for a inclined coal seam gangue retaining support, in which a spring buffer device is installed between the gangue retaining plate and the base, which can cope with the rock stratum in the collapse zone of the goaf squeezing the gangue retaining support, so that the gangue retaining plate cannot be restored after deformation. (3) The utility model is a buffer device for a inclined coal seam gangue retaining support, in which a spring buffer device is installed between the gangue retaining plate and the base, and when the squeezing of the rock stratum in the collapse zone of the goaf weakens, the spring buffer device will reset the gangue retaining plate to ensure the normal posture of the gangue retaining support, and will not affect the subsequent swinging frame and flexible mold casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0013] Figure 1 It is a schematic diagram of the assembly of the inclined coal seam gangue retaining support buffer device and the gangue retaining support of the utility model;

[0014] Figure 2 The utility model is an assembly diagram of an inclined coal seam gangue retaining support buffer device.

[0015] In the figure: 1. spring buffer, 2. lower rock baffle plate, 3. upper rock baffle plate, 4. base, 5. top beam, 6. column, 7. pin shaft, 8. connecting seat. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0018] Example 1

[0019] like Figure 1 As shown, the inclined coal seam gangue retaining support buffer device of the utility model comprises a plurality of spring buffers 1, one end of each spring buffer 1 is connected to the base 4 of the gangue retaining support, and the other end of the spring buffer 1 is connected to the lower gangue retaining plate 2 of the gangue retaining support.

[0020] The spring buffer 1 is connected to the lower rock baffle plate 2 through a base 4 fixed to the rock baffle support. After all components are connected, the structure is simple and has an anti-collision function.

[0021] When working along the goaf and retaining the lane, in the process of lowering and moving the rock retaining support, the operating column 6 is extended and retracted, driving the upper rock retaining plate 3 connected to the top beam 5 to slide up and down, and the lower rock retaining plate 2 is connected and fixed to the base 4 of the rock retaining support and the lower rock retaining plate 2 through the spring buffer device 1, and does not move with the lifting and lowering of the rock retaining support. This not only ensures that the rock retaining support can adapt to the changes in the thickness of different coal seams, but also always ensures that the goaf and the lane retaining working space are isolated.

[0022] like Figure 2 As shown, a plurality of spring buffers 1 can be flexibly arranged between the lower rock baffle plate 2 and the base 4 of the rock baffle support, which can not only mitigate the impact of the rock in the collapse zone on the rock baffle plate, but also enhance the deformation resistance of the rock baffle plate (the lower rock baffle plate 2 and the upper rock baffle plate 3).

[0023] Combination Figure 1 As shown, the utility model is a buffer device for inclined coal seam gangue retaining support, which fixes the lower gangue retaining plate 2 and the base 4 through the spring buffer 1 and improves the impact resistance of the gangue retaining plate to prevent the gangue retaining plate from deforming. Figure 2 From the perspective of structure, a stable triangular structure is formed between the spring buffer 1, the lower gangue retaining plate 2 and the base 4. When the gangue retaining support is applied to the inclined coal seam, the lateral force exerted by the gangue falling from the roof on the lower gangue retaining plate 2 will be buffered by the spring buffer 1, thereby enhancing the deformation resistance of the gangue retaining plate, buffering the impact force of the gangue on the base 4, and enhancing the anti-overturning ability of the gangue retaining support.

[0024] Therefore, compared with the prior art, the utility model has the following advantages: (1) The utility model is a buffer device for a gangue retaining support for an inclined coal seam, which can reduce the squeezing of the gangue retaining support by the rock layer in the collapsed zone of the goaf in the inclined coal seam, so that the gangue retaining support can move and pull normally. (2) The utility model is a buffer device for a gangue retaining support for an inclined coal seam, in which the gangue retaining plate and the base are connected by a buffer device, which can effectively separate the stress conditions of the two components, reduce the lateral force on the base, and enhance the anti-tilting ability of the gangue retaining support. (3) The utility model is a buffer device for a gangue retaining support for an inclined coal seam, which can rely on the buffer device to reset the gangue retaining plate after the gangue retaining plate is squeezed by the rock layer in the collapsed zone of the goaf, so as to prevent the gangue retaining plate from being deformed and damaged, and the buffer device is simple, takes up a small installation space, and is convenient for equipment maintenance.

[0025] Example 2

[0026] Similar to Example 1, in Example 2, the inclined coal seam gangue retaining support buffer device of the utility model includes multiple spring buffers 1, one end of each spring buffer 1 is connected to the base 4 of the gangue retaining support, and the other end of the spring buffer 1 is connected to the lower gangue retaining plate 2 of the gangue retaining support.

[0027] like Figure 2 As shown, different from Example 1, in the inclined coal seam gangue retaining support buffer device of Example 2 of the utility model, a connecting seat 8 is provided on the base 4 of the gangue retaining support and the lower gangue retaining plate 2, and the two ends of the spring buffer 1 are respectively arranged on the base 4 of the gangue retaining support and the lower gangue retaining plate 2 through a pin shaft 7, which is convenient for disassembly and assembly.

[0028] Example 3

[0029] Similar to Example 2, in Example 3, the inclined coal seam gangue retaining support buffer device of the utility model includes multiple spring buffers 1, one end of each spring buffer 1 is connected to the base 4 of the gangue retaining support, and the other end of the spring buffer 1 is connected to the lower gangue retaining plate 2 of the gangue retaining support.

[0030] like Figure 2 As shown, a connecting seat 8 is provided on the base 4 of the rock baffle support and the lower rock baffle plate 2, and both ends of the spring buffer 1 are respectively provided on the base 4 of the rock baffle support and the lower rock baffle plate 2 through a pin shaft 7, so that disassembly and assembly are convenient.

[0031] Different from Example 2, in Example 3 of the utility model of the inclined coal seam gangue retaining support buffer device, the spring buffers 1 can be arranged at equal intervals or at unequal intervals, as long as it is ensured that the lower gangue retaining plate 2 can be provided with buffer support.

[0032] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall be within the scope of protection of the claims attached to the utility model without departing from the spirit and scope of the utility model.

Claims

1. The inclined coal seam gangue retaining support buffer device is characterized by: It comprises a plurality of spring buffers (1), one end of each of the spring buffers (1) being connected to a base (4) of a rock-blocking support, and the other end of the spring buffer (1) being connected to a lower rock-blocking plate (2) of the rock-blocking support.

2. The inclined coal seam gangue retaining support buffer device according to claim 1 is characterized in that: The two ends of the spring buffer (1) are respectively connected to the base (4) of the rock baffle support and the lower rock baffle plate (2) through a pin shaft (7).

3. The inclined coal seam gangue retaining support buffer device according to claim 2 is characterized in that: A connecting seat (8) is provided on the base (4) of the rock baffle support and the lower rock baffle plate (2), and the pin shaft (7) is provided on the corresponding connecting seat (8).

4. The inclined coal seam gangue retaining support buffer device according to claim 3 is characterized in that: A plurality of the spring buffers (1) are arranged at equal intervals.

5. The inclined coal seam gangue retaining support buffer device according to claim 4, characterized in that: The plurality of spring buffers (1) are arranged at non-equidistant intervals.

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