Top beam waste rock blocking device for thin coal seam hydraulic support

Abstract

The utility model relates to the technical field of mining hydraulic supports, and discloses a top beam waste rock blocking device for a thin coal seam hydraulic support, which comprises a waste rock blocking plate rotationally connected with the lower surface of a top beam and a reinforcing piece fixedly connected with one side face of the waste rock blocking plate. The gangue blocking plate is made of rubber or polyurethane materials; the reinforcing piece comprises two sets of supporting plates which are perpendicular to each other, the first set of supporting plates comprises a first front supporting plate and a second front supporting plate which are arranged at an interval and are parallel, the second set of supporting plates comprises two front connecting plates which are arranged at an interval and are parallel, and the two front connecting plates are parallel to each other. The two front connecting plates are both located between the first front supporting plate and the second front supporting plate. According to the utility model, the belt is used as a basic gangue blocking plate, and the mutually vertical supporting plates are arranged on the belt as reinforcing pieces; the waste rock blocking device is small in mass, easy to operate and not prone to deformation when impacted.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic supports for mines, in particular to a top beam gangue blocking device for hydraulic supports in thin coal seams. Background Art

[0002] Coal mining working faces, especially those in front of hydraulic supports in thin coal seams, are prone to gangue surges due to coal mining, which in turn congests the coal mining working face. In special cases, large amounts of gangue will be ejected at an extremely fast speed, posing a threat to the lives of personnel, so the design of a top beam gangue retaining device is essential. The traditional top beam gangue retaining device is welded with steel plates as a whole. This type of gangue retaining device is heavy and extremely difficult to use on site by a single worker. It also has poor plasticity and cannot be used after being deformed by long-term impact or high-speed impact of large amounts of gangue. Therefore, a top beam gangue retaining device that is lightweight, easy to operate, and not easily deformed is needed. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a top beam rock retaining device for a thin coal seam hydraulic support, which utilizes a belt as a basic rock retaining plate and arranges mutually perpendicular support plates on the belt as reinforcements; the rock retaining device has a smaller mass, is easier to operate, and is not easily deformed by impact.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a top beam rock-blocking device for a thin coal seam hydraulic support, comprising a rock-blocking plate rotatably connected to the lower surface of the top beam, and a reinforcement member fixedly connected to one side of the rock-blocking plate; the rock-blocking plate is made of rubber or polyurethane; the reinforcement member comprises two groups of support plates arranged perpendicular to each other, the first group of support plates comprises a first front support plate and a second front support plate arranged at a distance, the first front support plate and the second front support plate are parallel, the second group of support plates comprises two front connecting plates arranged at a distance, the two front connecting plates are parallel, and the two front connecting plates are both located between the first front support plate and the second front support plate; a column is connected to the lower surface of the top beam, and the bottom of the column is connected to the base of the hydraulic support.

[0005] Furthermore, one end of the two front connecting plates is fixedly connected to the first front supporting plate, and the other end of the two front connecting plates is fixedly connected to the second front supporting plate.

[0006] Furthermore, a second reinforcement member having the same position and size is provided on the other side of the rock baffle plate corresponding to the reinforcement member; and the first front support plate is provided close to the top beam relative to the second front support plate.

[0007] Furthermore, the second reinforcement includes a first rear support plate corresponding to the first front support plate, a second rear support plate corresponding to the second front support plate, and a rear connecting plate corresponding to the front connecting plate; the first front support plate is fixedly connected to the first rear support plate by bolts; the second front support plate is fixedly connected to the second rear support plate by bolts; and the front connecting plate is fixedly connected to the rear connecting plate by bolts.

[0008] Furthermore, the rock baffle plate adopts a belt, and the thickness of the rock baffle plate is 8mm.

[0009] Furthermore, an ear plate is provided on the lower surface of the top beam, a connecting plate is provided at the front of the rock baffle plate, one end of the connecting plate away from the rock baffle plate is fixedly connected to a fixing plate, the fixing plate corresponds to the ear plate, and a pin shaft is provided through the fixing plate and the ear plate.

[0010] Furthermore, a third rear support plate parallel to the second group of support plates is provided on one side of the rock baffle plate close to the column. One end of the third rear support plate is connected to the second rear support plate by bolts, and the other end extends toward the end of the rock baffle plate away from the top beam.

[0011] Furthermore, a rotating column is provided through the second front support plate, one end of the rotating column close to the top beam is fixedly connected to the clamping plate, and the other end of the rotating column is fixedly connected to the handle; a top beam hole is provided on the clamping plate corresponding to the top beam; when the rock-blocking plate is lifted up and abuts against the top beam, the clamping plate can be clamped with the top beam hole.

[0012] The beneficial effects of the utility model are as follows: the utility model arranges a belt and a reinforcement, utilizes the belt as a basic rock baffle plate, arranges mutually perpendicular support plates on the belt as reinforcement members, and the two are combined to form a rock baffle device; the rock baffle device has a small mass, is easy to operate, is not easily deformed or damaged by impact, and has a long service life; the arrangement of a second reinforcement member and a third rear support plate 18 is beneficial to improving the impact resistance and service life of the rock baffle plate 8, reducing the degree of deformation after impact, and improving the deformation recovery ability; the arrangement of a clamping plate 15, a rotating column 14 and a handle 17 facilitates the folding and lowering of the rock baffle plate 8. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a side view of the structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model;

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

[0017] In the figure: 1. hydraulic support base; 2. top beam; 3. column; 4. ear plate; 5. fixing plate; 6. connecting plate; 7. pin shaft; 8. rock baffle plate; 9. first front support plate; 901. first rear support plate; 10. bolt; 11. nut; 12. front connecting plate; 1201. rear connecting plate; 13. second front support plate; 1301. second rear support plate; 14. rotating column; 15. clamping plate; 16. fastening screw; 17. handle; 18. third rear support plate; 19. top beam hole. DETAILED DESCRIPTION

[0018] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0019] Example:

[0020] like Figure 1-Figure 4 As shown, a top beam rock-blocking device for a thin coal seam hydraulic support comprises a rock-blocking plate 8 rotatably connected to the lower surface of the top beam 2, and a reinforcing member fixedly connected to one side of the rock-blocking plate 8; the rock-blocking plate 8 is made of rubber or polyurethane; the reinforcing member comprises two groups of support plates arranged perpendicular to each other, the first group of support plates comprises a first front support plate 9 and a second front support plate 13 arranged at a distance, the first front support plate 9 and the second front support plate 13 are parallel, the second group of support plates comprises two front connecting plates 12 arranged at a distance, the two front connecting plates 12 are parallel, and the two front connecting plates 12 are both located between the first front support plate 9 and the second front support plate 13; the front part refers to the end of the rock-blocking plate 8 close to the top beam 2, and the rear part refers to the end of the rock-blocking plate 8 away from the top beam 2; the lower surface of the top beam 2 is connected to a column 3, and the bottom of the column 3 is connected to the hydraulic support base 1; as shown Figure 1 Shown is the right side view, Figure 1 The left end is the front end of the hydraulic support; the first group of support plates are arranged along the left and right directions of the hydraulic support, and the second group of support plates are arranged along the front and back directions of the hydraulic support.

[0021] One end of the two front connecting plates 12 is fixedly connected to the first front supporting plate 9 , and the other end is fixedly connected to the second front supporting plate 13 , both by welding.

[0022] A second reinforcement member having the same position and size is provided on the other side of the rock baffle plate 8 corresponding to the reinforcement member; the first front support plate 9 is provided close to the top beam 2 relative to the second front support plate 13 .

[0023] The second reinforcement includes a first rear support plate 901 corresponding to the first front support plate 9, a second rear support plate 1301 corresponding to the second front support plate 13, and a rear connecting plate 1201 corresponding to the front connecting plate 12; the first front support plate 9 is fixedly connected to the first rear support plate 901 by bolts 10, and the bolts 10 pass through the first front support plate 9 and the first rear support plate 901 in sequence and are threadedly connected to the nuts 11; the second front support plate 13 is fixedly connected to the second rear support plate 1301 by bolts 10, and the bolts 10 pass through the second front support plate 13 and the second rear support plate 1301 in sequence and are threadedly connected to the nuts 11; the front connecting plate 12 is fixedly connected to the rear connecting plate 1201 by bolts 10.

[0024] In this embodiment, the rock baffle plate 8 is a mining conveyor belt, and the thickness of the rock baffle plate 8 is 8 mm; mining conveyor belts are usually made of rubber or polyurethane, have a certain elasticity, are light in weight, and are not easily deformed by impact.

[0025] An ear plate 4 is provided on the lower surface of the top beam 2, a connecting plate 6 is provided at the front of the gangue baffle plate 8, and a fixing plate 5 is fixedly connected to one end of the connecting plate 6 away from the gangue baffle plate 8. The fixing plate 5 corresponds to the ear plate 4, and a pin shaft 7 is provided through the fixing plate 5 and the ear plate 4.

[0026] A third rear support plate 18 parallel to the second group of support plates is provided on one side of the rock baffle plate 8 close to the column 3. One end of the third rear support plate 18 is connected to the second rear support plate 1301 through a bolt 10, and the other end extends to the end of the rock baffle plate 8 away from the top beam 2; the bolt 10 passes through the second front support plate 13, the second rear support plate 1301 and the third rear support plate 18 in sequence and is threadedly connected with the nut 11; by providing the second reinforcement and the third rear support plate 18, it is beneficial to improve the impact resistance and service life of the rock baffle plate 8, reduce the degree of deformation after impact, and improve the deformation recovery ability.

[0027] A rotating column 14 is provided through the second front support plate 13, and one end of the rotating column 14 close to the top beam 2 is fixedly connected to the clamping plate 15 by a fastening screw 16, and the other end of the rotating column 14 is fixedly connected to the handle 17 by a fastening screw 16, and the rotating column 14 is perpendicular to the rock-blocking plate 8; a top beam hole 19 is provided on the top beam 2 corresponding to the clamping plate 15; when the rock-blocking plate 8 is lifted and abutted against the top beam 2, the clamping plate 15 can be clamped with the top beam hole 19; by providing the clamping plate 15, the rotating column 14 and the handle 17, it is convenient to fold up and drop the rock-blocking plate 8.

[0028] When it is necessary to block the rock, the handle 17 is rotated to rotate the clamping plate 15 out of the top beam hole 19, and then the rock blocking plate 8 is dropped; the top beam hole 19 can be of a size comparable to that of the clamping plate 15, and a cavity is provided above the top beam hole 19. After the clamping plate 15 enters the top beam hole 19, it is rotated in the cavity to be clamped with the top beam hole 19.

[0029] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A top beam gangue blocking device for a thin coal seam hydraulic support, characterized in that: The invention comprises a rock baffle plate (8) rotatably connected to the lower surface of the top beam (2), and a reinforcing member fixedly connected to a side surface of the rock baffle plate (8); the rock baffle plate (8) is made of rubber or polyurethane; the reinforcing member comprises two groups of support plates arranged perpendicular to each other, the first group of support plates comprising a first front support plate (9) and a second front support plate (13) arranged at a distance, the first front support plate (9) and the second front support plate (13) being parallel, and the second group of support plates comprising two front connecting plates (12) arranged at a distance, the two front connecting plates (12) being parallel, and both of the two front connecting plates (12) being located between the first front support plate (9) and the second front support plate (13); the lower surface of the top beam (2) is connected to a column (3), and the bottom of the column (3) is connected to a hydraulic support base (1).

2. The top beam gangue retaining device for a thin coal seam hydraulic support according to claim 1, characterized in that: One end of the two front connecting plates (12) is fixedly connected to the first front supporting plate (9), and the other end of the two front connecting plates (12) is fixedly connected to the second front supporting plate (13).

3. The top beam gangue retaining device for a thin coal seam hydraulic support according to claim 2, characterized in that: A second reinforcement member having the same position and size is provided on the other side of the rock baffle plate (8) corresponding to the reinforcement member; and the first front support plate (9) is provided close to the top beam (2) relative to the second front support plate (13).

4. The top beam gangue retaining device for a thin coal seam hydraulic support according to claim 3 is characterized in that: The second reinforcement comprises a first rear support plate (901) corresponding to the first front support plate (9), a second rear support plate (1301) corresponding to the second front support plate (13), and a rear connecting plate (1201) corresponding to the front connecting plate (12); the first front support plate (9) is fixedly connected to the first rear support plate (901) by bolts (10); the second front support plate (13) is fixedly connected to the second rear support plate (1301) by bolts (10); and the front connecting plate (12) is fixedly connected to the rear connecting plate (1201) by bolts (10).

5. The top beam gangue retaining device for a thin coal seam hydraulic support according to claim 1, characterized in that: The slag baffle plate (8) is a belt, and the thickness of the slag baffle plate (8) is 8 mm.

6. The top beam gangue retaining device for a thin coal seam hydraulic support according to claim 1, characterized in that: A lug plate (4) is provided on the lower surface of the top beam (2), a connecting plate (6) is provided at the front of the gangue baffle plate (8), a fixing plate (5) is fixedly connected to one end of the connecting plate (6) away from the gangue baffle plate (8), the fixing plate (5) corresponds to the lug plate (4), and a pin shaft (7) is provided through the fixing plate (5) and the lug plate (4).

7. The top beam gangue retaining device for a thin coal seam hydraulic support according to claim 4, characterized in that: A third rear support plate (18) parallel to the second group of support plates is provided on one side of the rock baffle plate (8) close to the column (3); one end of the third rear support plate (18) is connected to the second rear support plate (1301) via a bolt (10), and the other end extends toward an end of the rock baffle plate (8) away from the top beam (2).

8. The top beam gangue retaining device for a thin coal seam hydraulic support according to claim 1, characterized in that: A rotating column (14) is provided through the second front support plate (13); one end of the rotating column (14) close to the top beam (2) is fixedly connected to the clamping plate (15), and the other end of the rotating column (14) is fixedly connected to the handle (17); a top beam hole (19) is provided on the top beam (2) corresponding to the clamping plate (15); when the gangue baffle plate (8) is lifted up and abuts against the top beam (2), the clamping plate (15) can be clamped with the top beam hole (19).

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