A tamping mechanism for a head support

Abstract

The utility model provides a kind of tamping mechanism for end support, and the tamping mechanism includes base, swing beam swingable in vertical plane and tamping telescopic beam arranged in the swing beam, first rotating assembly is provided on the base, the end of the swing beam is provided with second rotating assembly, the first rotating assembly is rotatably connected with the second rotating assembly, to drive the swing beam relative to the base horizontal rotation.This tamping mechanism is installed in end support rear portion, and it has the advantages of simultaneously controlling the stability of top plate and roadway side slope, increasing gangue compactness etc..

Description

Technical Field

[0001] This utility model relates to the field of hydraulic support technology for underground mining, specifically a compaction mechanism for end supports. Background Technology

[0002] With the continuous exploitation of coal resources, coal resources are becoming scarce in some parts of my country, while areas with significant coal deposits are located under construction, railways, and waterways. Furthermore, considering environmental protection and ecological restoration, backfilling mining technology is widely used. Installing a compaction mechanism on hydraulic supports is a crucial means of implementing this technology. However, existing compaction mechanisms are generally only installed in the middle of the support, resulting in a limited swing range and filling area. This can easily lead to inadequate compaction of the filling area during backfilling, posing safety hazards such as rockfall and surface subsidence.

[0003] Chinese invention patent CN 102168580 A discloses a compaction mechanism for an end support, addressing issues such as insufficient or weak compaction at the bottom of the filling area. This mechanism adds a swing beam mechanism below the compaction mechanism of the hydraulic support. Controlled by a lower swing beam jack, the swing beam mechanism can cover the area near the bottom of the rock retainer and can cooperate with an upper swing beam mechanism to increase the compaction range of the rock filling. Chinese utility model patent CN205025497U discloses a rock filling mechanism with a large right-hand swing angle, addressing issues such as a dense upper area and a loose lower area. This mechanism uses a compaction jack positioned above a swing jack, with a connecting rod between the swing jack and the compaction jack to increase the rotation angle of the compaction jack.

[0004] However, in the aforementioned patents, the compaction device of the compaction mechanism can only swing up and down, and the compaction range of gangue is limited, which is not conducive to the filling and mining at the beginning and end of the coal mine working face, and poses a safety threat to miners' underground mining operations. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a compaction mechanism for an end support, which is installed at the rear of the end support. This solves the technical problems in the prior art, such as the compaction mechanism only being able to swing up and down, and the limited range of compaction of gangue. It enables the compactor to repeatedly compact the gangue up, down, left, and right, ensuring that the gangue is dense and fully connected to the top.

[0006] This utility model is achieved through the following technical solution:

[0007] A compaction mechanism for an end support includes a base 1, a swing beam 5 that can swing in a vertical plane, and a compaction telescopic beam 6 disposed within the swing beam. A first rotating component is disposed on the base 1, and a second rotating component is disposed at the end of the swing beam. The first rotating component and the second rotating component are rotatably connected to drive the swing beam to rotate horizontally relative to the base 1.

[0008] In one possible embodiment, the first rotating component is a connecting ear plate, and the second rotating component is a hinge seat 2, wherein the connecting ear plate is hinged to the hinge seat 2 via a hinge shaft 8.

[0009] Furthermore, in order to realize the rotation of the second rotating component relative to the first rotating component, the compaction mechanism also includes a first hydraulic cylinder. The first hydraulic cylinder is inclined relative to the base 1, and the end of the first hydraulic cylinder is hinged to the pin lug on the side wall of the base 1. The piston rod of the first hydraulic cylinder is hinged to the pin lug on the side wall of the hinge seat 2.

[0010] Under the action of the hinge seat 2, the linear motion of the first hydraulic cylinder is converted into the horizontal rotational motion of the second rotating component.

[0011] In one possible embodiment, the first rotating component is a driving gear, and the second rotating component includes a driven gear and a hinge seat 2. The driven gear is meshed and driven by the driving gear, and the driven gear is fixedly connected to one end of the hinge seat 2 via a connecting rod. The other end of the hinge seat 2 is fixedly connected to the end of the swing beam. In this configuration, by driving the driving gear to rotate, the driven gear meshes and rotates relative to the driving gear, thereby causing the hinge seat 2 to rotate horizontally relative to the base.

[0012] The beneficial effects of this utility model are as follows: By rotating the first rotating component and the second rotating component, the swing beam can be further rotated horizontally relative to the base 1 on the basis of the existing vertical swing. It can swing up and down or left and right independently, and can also perform a compaction action by rotating up, down, left and right, increasing the compaction angle and range of the gangue filling, thereby ensuring the gangue filling effect of the roof and the sidewalls of the roadway. Attached Figure Description

[0013] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0014] Figure 1 This is a three-dimensional structural diagram of the compaction mechanism for the end support of this utility model;

[0015] Figure 2This is a front view structural diagram of the compaction mechanism for the end support of this utility model;

[0016] Figure 3 This is a top view of the compaction mechanism for the end support of this utility model;

[0017] Figure 4 yes Figure 3 The sectional view of FF in the image.

[0018] In the diagram: 1. Base; 2. Hinge seat; 3. Second hydraulic cylinder; 4. First hydraulic cylinder; 5. Swing beam; 6. Compacting telescopic beam; 7. Compacting cylinder; 8. Hinge shaft; 9. 10. 11. 12. 13. 14. Pin; 15. Hinge shaft. Detailed Implementation

[0019] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0020] Example 1

[0021] Figure 1-4 Embodiments of this utility model are shown.

[0022] like Figure 2 As shown, a compaction mechanism for an end support includes a base 1, a swing beam 5 that can swing in a vertical plane, and a compaction telescopic beam 6 disposed within the swing beam.

[0023] The base 1 is also provided with a first rotating component, and the end of the swing beam is provided with a second rotating component. The first rotating component and the second rotating component are rotatably connected to drive the swing beam 5 to rotate horizontally relative to the base 1.

[0024] Since the second rotating component is connected to the swing beam, when the second rotating component rotates relative to the first rotating component, the swing beam also rotates accordingly, thereby achieving horizontal rotation of the swing beam relative to the base, that is, realizing the left and right swing of the swing beam. Furthermore, since the swing beam 5 itself can swing in the vertical plane, this compaction mechanism has both horizontal and vertical degrees of freedom.

[0025] It is understandable that in actual use, the swing beam can be controlled to swing up and down individually, or to swing left and right individually, or to perform a rotating compaction action in all directions, thereby increasing the compaction angle and range of the gangue filling, and thus ensuring the gangue filling effect of the roof and roadway sidewalls.

[0026] Example 2

[0027] This embodiment provides a specific implementation of the first rotating component and the second rotating component.

[0028] In this embodiment, the first rotating component is a connecting ear plate, and the second rotating component is a hinge seat 2. The connecting ear plate is hinged to the hinge seat 2 via a hinge shaft 8.

[0029] It is understood that in order to realize the rotation of the hinge seat 2 relative to the connecting ear plate, the compaction mechanism further includes a first hydraulic cylinder 4. The first hydraulic cylinder 4 is inclined relative to the base 1, and the end of the first hydraulic cylinder 4 is hinged to the pin ear plate on the side wall of the base 1. The piston rod of the first hydraulic cylinder 4 is hinged to the pin ear plate on the side wall of the hinge seat 2.

[0030] like Figure 1-4 As shown, the length of the pin lug on the side wall of the base 1 is greater than the length of the pin lug on the side wall of the hinge seat 2, so that the first hydraulic cylinder 4 can be tilted relative to the base 1. When the piston rod of the first hydraulic cylinder 4 extends, it applies an oblique force to the hinge seat 2, thereby pushing the hinge seat 2 to rotate horizontally relative to the connecting lug.

[0031] That is, under the action of the hinge seat 2, the linear motion of the first hydraulic cylinder 4 is converted into the horizontal rotational motion of the swing beam. At the same time, since the swing beam itself can swing in the vertical direction, the swing range of the swing beam is expanded.

[0032] Example 3

[0033] This embodiment provides another specific embodiment of the first rotating component and the second rotating component.

[0034] In this embodiment, the first rotating component is a driving gear, and the second rotating component includes a driven gear and a hinge seat 2. The driven gear is meshed and connected to the driving gear, and the driven gear is fixedly connected to one end of the hinge seat 2 through a connecting rod. The other end of the hinge seat (2) is fixedly connected to the end of the swing beam.

[0035] It is understood that the compaction mechanism also includes a rotary actuator, the output shaft of which is connected to the drive gear.

[0036] In this method, the drive gear is driven to rotate by a rotary actuator, which in turn drives the driven gear to mesh and rotate relative to the drive gear. This causes the hinge seat 2 to rotate horizontally relative to the base, thereby enabling the swing beam 5 to swing in the horizontal dimension.

[0037] Example 4

[0038] The difference between this embodiment and embodiments 1, 2, or 3 is that the compaction mechanism further includes a second hydraulic cylinder 3, which is hinged to the top of the hinge seat 2, and its piston rod is hinged to the top of the swing beam 5.

[0039] The swing beam 5 includes a swing beam plate and swing beam bodies disposed on both sides of the swing beam plate. The swing beam plate is hinged to the hinge seat 2, and the piston rod of the second hydraulic cylinder 3 is hinged to the swing beam body.

[0040] The compaction telescopic beam 5 includes a compaction plate and a compaction cylinder 7. The compaction cylinder 7 is installed inside the swing beam 5, and its piston rod is connected to the compaction plate.

[0041] Specifically, the second hydraulic cylinder 3 controls the swing beam to swing up and down in the vertical plane. The extension and retraction of the compaction cylinder 7 drives the reciprocating movement of the compaction plate, thereby achieving the compaction of the gangue.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A compaction mechanism for an end support, the compaction mechanism comprising a base (1), a swing beam (5) capable of swinging in a vertical plane, and a compaction telescopic beam (6) disposed within the swing beam, characterized in that: A first rotating component is provided on the base (1), and a second rotating component is provided at the end of the swing beam. The first rotating component and the second rotating component are rotatably connected to drive the swing beam to rotate horizontally relative to the base (1).

2. The compaction mechanism according to claim 1, characterized in that: The first rotating component is a connecting ear plate, and the second rotating component is a hinge seat (2). The connecting ear plate is hinged to the hinge seat (2) via a hinge shaft (8).

3. The compaction mechanism according to claim 2, characterized in that: It also includes a first hydraulic cylinder, which is inclined relative to the base (1), and the end of the first hydraulic cylinder is hinged to the pin lug on the side wall of the base (1), and the piston rod of the first hydraulic cylinder is hinged to the pin lug on the side wall of the hinge seat (2).

4. The compaction mechanism according to claim 1, characterized in that: The first rotating component is a driving gear, and the second rotating component includes a driven gear and a hinge seat (2). The driven gear is meshed with the driving gear and is connected to it. The driven gear is fixedly connected to one end of the hinge seat (2) through a connecting rod, and the other end of the hinge seat (2) is fixedly connected to the end of the swing beam.

5. The compaction mechanism according to claim 4, characterized in that: It also includes a rotary actuator, the output shaft of which is connected to the drive gear.

6. The compaction mechanism according to any one of claims 2-5, characterized in that: It also includes a second hydraulic cylinder (3) which is hinged to the top of the hinge seat (2) and whose piston rod is hinged to the top of the swing beam (5).

7. The compaction mechanism according to claim 6, characterized in that: The swing beam includes a swing beam plate and swing beam bodies disposed on both sides of the swing beam plate. The swing beam plate is hinged to the hinge seat (2), and the piston rod of the second hydraulic cylinder (3) is hinged to the swing beam body.

8. The compaction mechanism according to claim 6, characterized in that: The compaction telescopic beam (6) includes a compaction plate and a compaction cylinder (7). The compaction cylinder (7) is installed inside the swing beam (5), and its piston rod is connected to the compaction plate.

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