Large-gap top control mechanism suitable for thin coal seam end support

Abstract

The utility model relates to the technical field of fully-mechanized coal mining equipment matching, in particular to a large-gap roof control mechanism suitable for an end support of a thin coal seam, which comprises an end support basic model, a side guard beam is fixedly mounted on the rear side of the end support basic model through a hinge, and a telescopic guard plate is movably mounted on the rear side of the side guard beam. A telescopic side protection jack is fixedly installed at the bottom of the telescopic protection plate, a telescopic side protection stand column is arranged at the bottom of the side protection beam, a side pushing jack is fixedly installed on the surface of the telescopic side protection stand column, and a pushing jack is fixedly installed in an inner cavity of the end support basic model through a rotating shaft. According to the utility model, the closeness between the end part and the transition part can be increased, and when a gap is generated between the parts, a user can control the telescopic side protection upright post to unfold the side protection beam, so that the side protection beam can seal the gap to prevent gangue from falling off from the gap, thereby improving the intelligentization and unmanned level in the thin coal seam mining process.

Description

Technical Field

[0001] The utility model relates to the technical field of fully mechanized mining equipment matching, in particular to a large-gap top control mechanism suitable for thin coal seam end brackets. Background Art

[0002] Coal mining in my country is developing towards the two extremes of super-large mining height coal seams and extremely thin coal seams. However, under the conditions of changes in factors such as harsh geological conditions, coal seams that are too hard / soft, coal seams that are too deep / shallow, and sudden changes in the scale of mining space, top control mechanisms will be used within the range of extremely thin coal seams allowed for mining by the state.

[0003] With the development of industry, the demand for coal mines in some industries is also increasing day by day. During the mining of thin coal seams, the gangue on the upper part of the coal seam will leak into the tunnel, which can easily threaten the safety of tunnel equipment and personnel. Therefore, people use end components and transition components to protect tunnel equipment and personnel. Because it is necessary to consider ensuring that a certain space is reserved between the transition components and the inner wall of the tunnel at both ends of the working face, there is a large gap between the end components and the transition components. This is a safety issue in the thin coal seam mining process. If it is not handled, gangue leakage is likely to occur, which may cause personal injury. In order to solve the above technical problems, we have designed a large gap top control mechanism suitable for thin coal seam end brackets. Utility Model Content

[0004] The purpose of the utility model is to provide a large gap top control mechanism suitable for thin coal seam end support, which has the advantage of being able to protect large gaps between equipment and solves the problem that large gaps are generated between the end head components and the transition components when the end head components and the transition components support and protect the tunnel.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-gap top control mechanism suitable for an end support of a thin coal seam, comprising a basic type of end support, a side guard beam is fixedly installed on the rear side of the basic type of end support through a hinge, a telescopic guard plate is movably installed on the rear side of the side guard beam, a telescopic side guard jack is fixedly installed on the bottom of the telescopic guard plate, a telescopic side guard column is arranged at the bottom of the side guard beam, a side push jack is fixedly installed on the surface of the telescopic side guard column, a push jack is fixedly installed on the inner cavity of the basic type of end support through a rotating shaft, a main column is fixedly installed on the inner cavity of the basic type of end support through a rotating shaft, and a bottom lifting jack is fixedly installed on the inner cavity of the basic type of end support through a rotating shaft.

[0006] Preferably, a third D-shaped pin is fixedly installed on the output end of the telescopic side guard jack, a third pin shaft is installed through the front side of the third D-shaped pin, and the telescopic side guard jack is fixedly connected to the telescopic guard plate through the third pin shaft.

[0007] Preferably, a first D-shaped pin is fixedly installed on the output end of the side push jack, a first pin shaft is fixedly installed on the front side of the first D-shaped pin, and the output end of the side push jack is basically fixedly connected to the end bracket through the first pin shaft.

[0008] Preferably, second pin shafts are installed through both upper and lower ends of the telescopic side guard column, a second D-shaped pin is movably installed at the bottom of the telescopic side guard column, the bottom of the telescopic side guard column is fixedly connected to the second D-shaped pin through the second pin shaft, and the top of the telescopic side guard column is fixedly connected to the side guard beam through the second pin shaft.

[0009] Preferably, the bottom of the second D-shaped pin is fixedly connected to a column socket plate, and the bottom of the column socket plate is fixedly connected to a positioning protrusion.

[0010] Preferably, the number of the side thrust jacks and the number of the telescopic side guard columns are both three, the number of the main columns is two, and the number of the telescopic side guard jacks is four.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model can increase the sealing performance between the end component and the transition component through the cooperation of the side guard beam, the telescopic guard plate, the telescopic side guard jack, the telescopic side guard column, the column socket plate and the side push jack. When a gap is generated between the components, the user can operate the telescopic side guard column to unfold the side guard beam so that the side guard beam can seal the gap to prevent gangue from falling from the gap, thereby improving the intelligence and unmanned level in the thin coal seam mining process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 It is a schematic cross-sectional view of the structure of the utility model;

[0015] Figure 3 It is a schematic diagram of a left side cross-sectional view of the structure of the utility model;

[0016] Figure 4 It is a left side schematic diagram of the structure of the utility model.

[0017] In the figure: 1. Basic type of end bracket; 2. Side guard beam; 3. Telescopic guard plate; 4. Telescopic side guard jack; 5. Telescopic side guard column; 6. First pin shaft; 7. First D-shaped pin; 8. Second pin shaft; 9. Second D-shaped pin; 10. Third pin shaft; 11. Third D-shaped pin; 12. Column socket plate; 13. Main column; 14. Sliding jack; 15. Bottom lifting jack; 16. Side push jack. DETAILED DESCRIPTION

[0018] See also Figure 1-Figure 4 A large-gap top control mechanism suitable for an end support of a thin coal seam comprises a basic end support 1, a side guard beam 2 is fixedly installed on the rear side of the basic end support 1 through a hinge, a telescopic guard plate 3 is movably installed on the rear side of the side guard beam 2, a telescopic side guard jack 4 is fixedly installed on the bottom of the telescopic guard plate 3, a telescopic side guard column 5 is arranged at the bottom of the side guard beam 2, a side push jack 16 is fixedly installed on the surface of the telescopic side guard column 5, a push jack 14 is fixedly installed on the inner cavity of the basic end support 1 through a rotating shaft, a main column 13 is fixedly installed on the inner cavity of the basic end support 1 through a rotating shaft, and a bottom lifting jack 15 is fixedly installed on the inner cavity of the basic end support 1 through a rotating shaft.

[0019] See also Figure 2 and Figure 3 A third D-shaped pin 11 is fixedly installed on the output end of the telescopic side guard jack 4, and a third pin shaft 10 is installed through the front side of the third D-shaped pin 11. The telescopic side guard jack 4 is fixedly connected to the telescopic guard plate 3 through the third pin shaft 10. By setting the third D-shaped pin 11, it is convenient to connect the telescopic side guard jack 4 to the telescopic guard plate 3.

[0020] See also Figure 2 and Figure 3 The output end of the side push jack 16 is fixedly installed with a first D-type pin 7, and the front side of the first D-type pin 7 is fixedly installed with a first pin shaft 6. The output end of the side push jack 16 is fixedly connected to the basic type of the end bracket 1 through the first pin shaft 6. By setting the first D-type pin 7, it is convenient to connect the side push jack 16 with the basic type of the end bracket 1.

[0021] See also Figure 2 and Figure 3 The upper and lower ends of the telescopic side guard column 5 are penetrated by second pin shafts 8, and the bottom of the telescopic side guard column 5 is movably installed with a second D-shaped pin 9. The bottom of the telescopic side guard column 5 is fixedly connected to the second D-shaped pin 9 through the second pin shaft 8, and the top of the telescopic side guard column 5 is fixedly connected to the side guard beam 2 through the second pin shaft 8. By setting the second pin shaft 8, it is convenient to connect the telescopic side guard column 5 with the end bracket basic type 1 and the second D-shaped pin 9. By setting the second D-shaped pin 9, the support angle of the telescopic side guard column 5 can be adjusted.

[0022] See also Figure 3 and Figure 4 The bottom of the second D-shaped pin 9 is fixedly connected with a column socket plate 12, and the bottom of the column socket plate 12 is fixedly connected with a positioning protrusion. By setting the positioning protrusion, the stability of the connection between the column socket plate 12 and the ground can be increased to prevent the column socket plate 12 from being displaced at will.

[0023] See also Figure 1 , Figure 2 , Figure 3and Figure 4 The number of the side thrust jacks 16 and the telescopic side guard columns 5 is three, the number of the main columns 13 is two, the number of the telescopic side guard jacks 4 is four, and the telescopic side guard columns 5 are installed in an inverted manner.

[0024] When in use, the user first controls the equipment to unfold so that the end support basic type 1 can support the thin coal seam. When mining the coal seam, it is necessary to regularly adjust the positions or the spacing between several end support basic types 1, so that the end parts at both ends of the thin coal seam will have a large gap with the transition part. Then the staff first adjusts the angle of the side guard beam 2 according to the gap size between the end parts and the transition part during the mining process. Then the user controls the telescopic side guard column 5 so that the output end of the telescopic side guard column 5 can drive the second D-shaped pin 9 to move downward through the second pin shaft 8 until the second D-shaped pin 9 can drive The column nest 12 supports the equipment. When supporting the equipment, the user adjusts the telescopic length of the telescopic side guard column 5 to adjust the deployment angle of the side guard beam 2, thereby increasing the closedness of the top of the end bracket basic type 1. When the equipment needs to be pushed, the user first controls the side push jack 16 so that the side push jack 16 can support the side guard beam 2 by driving the telescopic side guard column 5 to prevent the side guard beam 2 from shrinking. At the same time, the user controls the telescopic side guard column 5 to drive the column nest 12 to move upward, thereby releasing the support limit of the equipment, so that the push jack 14 can push the equipment.

[0025] To sum up: the large gap top control mechanism suitable for thin coal seam end support, through the cooperation of the end support basic type 1, side guard beam 2, telescopic guard plate 3, telescopic side guard jack 4, telescopic side guard column 5 and column socket plate 12, solves the problem that a large gap will be generated between the end head component and the transition component when they support and protect the tunnel.

Claims

1. A large clearance roof control mechanism for end supports of thin coal seams, comprising a basic type of end support (1), characterized in that: A side guard beam (2) is fixedly installed on the rear side of the basic end bracket (1) via a hinge, a telescopic guard plate (3) is movably installed on the rear side of the side guard beam (2), a telescopic side guard jack (4) is fixedly installed on the bottom of the telescopic guard plate (3), a telescopic side guard column (5) is provided at the bottom of the side guard beam (2), a side push jack (16) is fixedly installed on the surface of the telescopic side guard column (5), a push jack (14) is fixedly installed on the inner cavity of the basic end bracket (1) via a rotating shaft, a main column (13) is fixedly installed on the inner cavity of the basic end bracket (1) via a rotating shaft, and a bottom lifting jack (15) is fixedly installed on the inner cavity of the basic end bracket (1) via a rotating shaft.

2. According to claim 1, a large clearance top control mechanism for thin coal seam end support, characterized in that: A third D-shaped pin (11) is fixedly installed at the output end of the telescopic side guard jack (4), a third pin shaft (10) is installed through the front side of the third D-shaped pin (11), and the telescopic side guard jack (4) is fixedly connected to the telescopic guard plate (3) via the third pin shaft (10).

3. The large clearance top control mechanism for thin coal seam end support according to claim 1 is characterized by: The output end of the side thrust jack (16) is fixedly mounted with a first D-shaped pin (7), the front side of the first D-shaped pin (7) is fixedly mounted with a first pin shaft (6), and the output end of the side thrust jack (16) is fixedly connected to the end bracket basic model (1) via the first pin shaft (6).

4. The large clearance top control mechanism for thin coal seam end support according to claim 1 is characterized by: A second pin shaft (8) is installed through both upper and lower ends of the telescopic side guard column (5); a second D-shaped pin (9) is movably installed at the bottom of the telescopic side guard column (5); the bottom of the telescopic side guard column (5) is fixedly connected to the second D-shaped pin (9) via the second pin shaft (8); and the top of the telescopic side guard column (5) is fixedly connected to the side guard beam (2) via the second pin shaft (8).

5. The large clearance top control mechanism for thin coal seam end support according to claim 4 is characterized in that: The bottom of the second D-shaped pin (9) is fixedly connected to a column socket plate (12), and the bottom of the column socket plate (12) is fixedly connected to a positioning protrusion.

6. The large clearance roof control mechanism for thin coal seam end support according to claim 1 is characterized by: The number of the side thrust jacks (16) and the number of the telescopic side guard columns (5) are both three, the number of the main columns (13) is two, and the number of the telescopic side guard jacks (4) is four.

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