Mine roof support device

Abstract

This utility model belongs to the field of mining and relates to a mine roof support device, including a top beam, an extension plate, and an extension plate moving assembly. The top beam supports the roof. A channel parallel to the plane of the roof is provided between the top beam and the roof. The extension plate is placed in the channel. The extension plate moving assembly is connected to the extension plate and drives the extension plate to move freely in the channel. This utility model provides a mine roof support device that is easy to replace and maintain and can effectively improve safety.

Description

Technical Field

[0001] This utility model belongs to the field of mining and relates to a mine roof support device, and more particularly to a mining mine roof support device. Background Technology

[0002] A mine shaft is a general term encompassing the shafts, chambers, equipment, surface buildings, and structures that form an underground coal mine production system. Sometimes, inclined shafts, vertical shafts, and adits in underground mine development are also referred to as mine shafts. Determining the size of the mining area, the mine's production capacity, and its service life is one of the key issues that must be addressed in the mine's self-design. For large mines with higher fixed asset investments and higher investment per ton of coal, the service life should be longer to maximize the return on investment. A mine roof support device is a support equipment used in coal mining faces, primarily for supporting the roof, preventing roof collapse, and ensuring the safety of the working face. In existing technologies, the extension plates of general mine roof support devices cannot be replaced after damage or breakage, which not only affects the effective support width but also leads to safety hazards caused by support collapse, resulting in considerable inconvenience in use. Utility Model Content

[0003] In order to solve the above-mentioned technical problems in the background art, the present invention provides a mine roof support device that is easy to replace and maintain and can effectively improve safety.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A mine roof support device, characterized in that: the mine roof support device includes a top beam, an extension plate, and an extension plate moving assembly; the top beam is used to support the roof; a channel parallel to the plane of the roof is provided between the top beam and the roof; the extension plate is placed in the channel; the extension plate moving assembly is connected to the extension plate and drives the extension plate to move freely in the channel.

[0006] The aforementioned extension plate moving assembly includes a drive assembly and a connector; the extension plate is connected to the drive assembly via the connector, and the drive assembly is fixedly mounted on the top beam.

[0007] The aforementioned connecting components include a threaded block, a movable plate, a connecting plate, and an insert plate; the movable plate and the extension plate run parallel to each other; a reinforcing rib is provided between the movable plate and the extension plate; the extension plate is connected to the threaded block via the insert plate; the threaded block is connected to the movable plate via the connecting plate; a movable groove is provided on the upper surface of the top beam; the movable plate is embedded in the movable groove and moves along the axial direction of the movable groove; the driving assembly is connected to the threaded block and drives the movable plate and the extension plate to move synchronously and freely in the channel through the threaded block.

[0008] The aforementioned drive assembly includes a lead screw, a first bevel gear, a second bevel gear, and a first motor; the lead screw is placed in a channel; the axis of the lead screw is parallel to the axis of the moving slot; the threaded block is fitted onto the outside of the lead screw and engages with the lead screw thread; the first motor is mounted on the top beam; the first motor is connected to the first bevel gear and drives the first bevel gear to rotate around the axis of the output shaft of the first motor; the first bevel gear meshes with the second bevel gear; the second bevel gear is fixedly mounted on the lead screw and drives the lead screw to rotate synchronously.

[0009] The aforementioned mine roof support device also includes a temporary cover assembly placed between the roof and the extension plate and parallel to the plane of the roof.

[0010] The aforementioned temporary sealing assembly includes a cover plate and a cover plate moving assembly; the cover plate is placed between the top plate and the extension plate and is parallel to the plane of the top plate; the cover plate moving assembly is connected to the cover plate and drives the cover plate to move parallel to the plane of the cover plate.

[0011] The aforementioned cover plate moving assembly includes a support plate, a gear, and a second motor; the support plate is disposed on the top beam or the top plate; the second motor is fixedly disposed on the support plate; the second motor is connected to the gear and drives the gear to rotate around the output shaft of the second motor; the lower surface of the cover plate is provided with a rack that meshes with the gear; the second motor drives the cover plate to move freely along the axial direction of the rack through the gear and the rack.

[0012] The aforementioned cover plate moving assembly also includes a limiting groove disposed on the top of the top beam, wherein the axial direction of the limiting groove is parallel to the axial direction of the rack; the end of the cover plate is embedded in the limiting groove and moves freely along the axial direction of the limiting groove.

[0013] The aforementioned cover plate moving assembly also includes a slider placed in a limiting groove and sliding freely along the axial direction of the limiting groove; the end of the cover plate is connected to the slider.

[0014] The advantages of this utility model are:

[0015] This utility model provides a mine roof support device, including a top beam, an extension plate, and an extension plate moving assembly. The top beam supports the roof. A channel parallel to the plane of the roof is provided between the top beam and the roof. The extension plate is placed in the channel. The extension plate moving assembly is connected to the extension plate and drives the extension plate to move freely in the channel. This utility model, through the driving of the extension plate by the extension plate moving assembly, allows the extension plate to be easily moved in or out of the channel between the top beam and the roof, facilitating replacement or maintenance of the extension plate. This not only ensures the support width of the extension plate but also ensures safety during use. Specifically, this utility model allows for easy replacement of extension plates of different lengths for support by assembling and disassembling the extension plate. Furthermore, during use, a movable cover plate exposes an opening, facilitating internal maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main sectional view of the mine roof support device provided by this utility model;

[0017] Figure 2 This is a side cross-sectional view of the threaded block used in this utility model.

[0018] In the picture:

[0019] 1-Top beam; 2-Top plate; 3-Extension plate; 4-Cover plate; 5-Support plate; 6-Gear; 7-Second motor; 8-Threaded block; 9-Reinforcing rib; 10-Moving plate; 11-Screw rod; 12-First bevel gear; 13-Second bevel gear; 14-First motor; 16-Slider; 17-Connecting plate; 18-Limiting groove; 22-Insertion plate. Detailed Implementation

[0020] See Figure 1 This utility model provides a mine roof support device, including a top beam 1, an extension plate 3, and an extension plate moving assembly; the top beam 1 is used to support the roof 2; a channel parallel to the plane of the roof 2 is provided between the top beam 1 and the roof 2; the extension plate 3 is placed in the channel; the extension plate moving assembly is connected to the extension plate 3 and drives the extension plate 3 to move freely in the channel.

[0021] The extension plate moving assembly includes a drive assembly and a connector; the extension plate 3 is connected to the drive assembly via the connector, and the drive assembly is fixedly mounted on the top beam 1. (Continue to see...) Figure 1 The connecting components used in this implementation include a threaded block 8, a movable plate 10, a connecting plate 17, and an insert plate 22; the movable plate 10 runs parallel to the extension plate 3; a reinforcing rib 9 is provided between the movable plate 10 and the extension plate 3. The reinforcing rib 9 allows the movable plate 10 and the extension plate 3 to form a single unit, improving the smoothness of movement of the extension plate 3. For example, the reinforcing rib may be V-shaped or W-shaped. See also... Figure 2In this invention, the extension plate 3 is connected to the threaded block 8 via an insert plate 22; the threaded block 8 is connected to the movable plate 10 via a connecting plate 17; a movable groove is provided on the upper surface of the top beam 1; the movable plate 10 is embedded in the movable groove and moves along the axial direction of the movable groove; the drive assembly is connected to the threaded block 8 and drives the movable plate 10 and the extension plate 3 to move synchronously and freely in the channel via the threaded block 8. For example, a slot is provided on the top of the threaded block 8, and an insert plate 22 matching the slot is provided on the lower surface of the movable plate 10. The insert plate 22 is inserted into the slot for quick installation. For example, the reinforcing rib 9 can be connected to the extension plate via screws or bolts, which is very convenient to use. That is, when different lengths or sizes of extension plates 3 are needed, the connecting screws can be loosened directly to separate the reinforcing rib 9 from the extension plate 3, and then the extension plate 3 can be pulled out from the threaded block 8, enabling the selection, replacement, or use of extension plates 3 of different lengths.

[0022] See Figure 1 For example, the extension plate moving assembly uses two sets, which can drive different extension plates 3 to perform translational movements respectively. When in use, the extension plate moving assembly can cause the first motor 14 to drive the first bevel gear 12 on its shaft to rotate, the first bevel gear 12 to drive the second bevel gear 13 meshing with it to rotate, the second bevel gear 13 to drive the lead screw 11 to rotate, and the lead screw 11 to drive the threaded blocks 8 at both ends to move outward, so that the threaded blocks 8 can drive the top extension plate 3 to move together, and the bottom connecting plate 17 can drive the moving plate 10 to move together, so that the reinforcing rib 9 between the moving plate 10 and the extension plate 3 can move together, so that the reinforcing rib 9 can strengthen the support effect of the extension plate 3.

[0023] The drive assembly includes a lead screw 11, a first bevel gear 12, a second bevel gear 13, and a first motor 14; the lead screw 11 is placed in the channel; the axis of the lead screw 11 is parallel to the axis of the moving groove; a threaded block 8 is fitted on the outside of the lead screw 11 and threadedly engages with the lead screw 11; the first motor 14 is mounted on the top beam 1; the first motor 14 is connected to the first bevel gear 12 and drives the first bevel gear 12 to rotate around the axis of the output shaft of the first motor 14; the first bevel gear 12 meshes with the second bevel gear 13; the second bevel gear 13 is fixedly mounted on the lead screw 11 and drives the lead screw 11 to rotate synchronously.

[0024] The mine roof support device also includes a temporary cover assembly positioned between the roof 2 and the extension plate 3 and parallel to the plane of the roof 2. Exemplarily, the temporary cover assembly includes a cover plate 4 and a cover plate moving assembly; the cover plate 4 is positioned between the roof 2 and the extension plate 3 and parallel to the plane of the roof 2; the cover plate moving assembly is connected to the cover plate 4 and drives the cover plate 4 to move parallel to the plane of the cover plate 4. See also Figure 1The cover plate moving assembly used in this utility model includes a support plate 5, a gear 6, and a second motor 7; the support plate 5 is set on the top beam 1 or the top plate 2; the second motor 7 is fixedly set on the support plate 5; the second motor 7 is connected to the gear 6 and drives the gear 6 to rotate around the output shaft of the second motor 7; a rack that meshes with the gear 6 is provided on the lower surface of the cover plate 4; the second motor 7 drives the cover plate 4 to move freely along the axis of the rack through the gear 6 and the rack. In addition, in order to limit the position of the cover plate 4, the cover plate moving assembly adopted in this utility model also includes a limiting groove 18 set on the top of the top beam 1 and a slider 16 placed in the limiting groove 18 and sliding freely along the axial direction of the limiting groove 18; the axial direction of the limiting groove 18 is parallel to the axial direction of the rack; the end of the cover plate 4 is connected to the slider 16 and moves freely along the axial direction of the limiting groove 18 through the slider 16, which facilitates the temporary closing or opening and closing of the top of the top beam 1 by the cover plate 4, and facilitates the replacement or maintenance of the top beam 1 and the extension plate moving assembly, and prevents coal blocks or gangue in the mine from sliding down the top plate 2 and causing unnecessary damage or safety accidents.

Claims

1. A mine roof support apparatus, characterised in that: The mine roof support device includes a top beam (1), an extension plate (3), and an extension plate moving assembly; the top beam (1) is used to support the roof (2); a channel parallel to the plane of the roof (2) is provided between the top beam (1) and the roof (2); the extension plate (3) is placed in the channel; the extension plate moving assembly is connected to the extension plate (3) and drives the extension plate (3) to move freely in the channel.

2. The mine roof support device of claim 1, wherein: The extension plate moving assembly includes a driving assembly and a connector; the extension plate (3) is connected to the driving assembly through the connector, and the driving assembly is fixedly mounted on the top beam (1).

3. The mine roof support device of claim 2, wherein: The connector includes a threaded block (8), a movable plate (10), a connecting plate (17), and a insert plate (22); the movable plate (10) runs parallel to the extension plate (3); a reinforcing rib (9) is provided between the movable plate (10) and the extension plate (3); the extension plate (3) is connected to the threaded block (8) through the insert plate (22); the threaded block (8) is connected to the movable plate (10) through the connecting plate (17); a movable groove is provided on the upper surface of the top beam (1); the movable plate (10) is embedded in the movable groove and moves along the axial direction of the movable groove; the drive assembly is connected to the threaded block (8) and drives the movable plate (10) and the extension plate (3) to move synchronously and freely in the channel through the threaded block (8).

4. The mine roof support device of claim 3, wherein: The drive assembly includes a lead screw (11), a first bevel gear (12), a second bevel gear (13), and a first motor (14); the lead screw (11) is placed in the channel; the axial direction of the lead screw (11) is parallel to the axial direction of the moving groove; the threaded block (8) is fitted on the outside of the lead screw (11) and threadedly engages with the lead screw (11); the first motor (14) is mounted on the top beam (1); the first motor (14) is connected to the first bevel gear (12) and drives the first bevel gear (12) to rotate around the output shaft of the first motor (14); the first bevel gear (12) meshes with the second bevel gear (13); the second bevel gear (13) is fixedly mounted on the lead screw (11) and drives the lead screw (11) to rotate synchronously.

5. A mine roof support apparatus as claimed in claim 1 or 2 or 3 or 4 wherein: The mine roof support device also includes a temporary cover assembly placed between the roof (2) and the extension plate (3) and parallel to the plane of the roof (2).

6. The mine roof support device of claim 5, wherein: The temporary sealing assembly includes a cover plate (4) and a cover plate moving assembly; the cover plate (4) is placed between the top plate (2) and the extension plate (3) and is parallel to the plane of the top plate (2); the cover plate moving assembly is connected to the cover plate (4) and drives the cover plate (4) to move parallel to the plane of the cover plate (4).

7. The mine roof support device of claim 6, wherein: The cover plate moving assembly includes a support plate (5), a gear (6), and a second motor (7); the support plate (5) is mounted on the top beam (1) or the top plate (2); the second motor (7) is fixedly mounted on the support plate (5); the second motor (7) is connected to the gear (6) and drives the gear (6) to rotate around the output shaft of the second motor (7); the lower surface of the cover plate (4) is provided with a rack that meshes with the gear (6); the second motor (7) drives the cover plate (4) to move freely along the axis of the rack through the gear (6) and the rack.

8. The mine roof support device of claim 7, wherein: The cover plate moving assembly also includes a limiting groove (18) provided on the top of the top beam (1), the axis of the limiting groove (18) being parallel to the axis of the rack; the end of the cover plate (4) is embedded in the limiting groove (18) and moves freely along the axis of the limiting groove (18).

9. The mine roof support device of claim 8, wherein: The cover plate moving assembly also includes a slider (16) placed in the limiting groove (18) and sliding freely along the axial direction of the limiting groove (18); the end of the cover plate (4) is connected to the slider (16).

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