A coal mine excavating and supporting device

Abstract

The utility model provides a kind of coal mine excavating supporting device, it is related to supporting equipment technical field, the utility model includes frame body, the frame body is placed in coal mine roadway, for providing support for roadway;Adjusting device, wherein adjusting device is arranged at frame body bottom, for adjusting the support height of frame body, the adjusting device includes: rectangular tube, one side of the rectangular tube is fixedly connected with hole ring, wherein the inner wall of hole ring is slidably connected with bolt;Gear shaft, the gear shaft is rotatably installed on rectangular tube by bearing, wherein gear shaft is placed in hole ring and rectangular tube interior;Chuck, the chuck is fixedly connected on gear shaft, the utility model can freely adjust the support height of frame body by setting adjusting device, reduce when frame body is placed in pit and depression area, frame body height and roadway height are not adapted, cause the gap between frame body and roadway inner wall, cannot effectively provide support for roadway, improve the support effect and use flexibility of frame body.

Description

Technical Field

[0001] This utility model relates to the field of support equipment technology, and in particular to a coal mine excavation support device. Background Technology

[0002] Coal mines are areas where humans extract coal resources in coal-rich mining areas. They are mainly divided into two types: underground coal mines and open-pit coal mines. During the mining process, support structures are needed. Support structures are key equipment used to maintain the stability of coal mine roadways and working faces. They are mainly divided into two categories: roadway support and working face support.

[0003] In the process of coal mine excavation, the most common method is to fix and support the frame in the roadway to achieve the support and reinforcement of the roadway. However, since the ground of the roadway is mostly uneven, with many pits and depressions, the height of the frame may not match the height of the roadway top when it is placed in the pits and depressions. This can cause gaps between the frame and the inner wall of the roadway, which cannot effectively support the roadway and affect the support effect of the coal mine roadway. Utility Model Content

[0004] The technical problem this utility model aims to solve is that when the frame is placed in a pitted area, the height of the frame is not matched with the height of the roadway top, resulting in a gap between the support and the inner wall of the roadway, which cannot effectively provide support for the roadway and affects the support effect on the coal mine roadway.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a coal mine excavation support device, comprising: a frame, which is placed in a coal mine roadway to provide support for the roadway; and an adjustment device, wherein the adjustment device is set at the bottom of the frame to adjust the support height of the frame.

[0006] Preferably, the adjusting device includes: a rectangular tube, one side of which is fixedly connected to a perforated ring, wherein a pin is slidably connected to the inner wall of the perforated ring; a gear shaft, which is rotatably mounted on the rectangular tube via a bearing, wherein the gear shaft is located inside the perforated ring and the rectangular tube; a chuck, which is fixedly connected to the gear shaft, wherein a pin is located inside the chuck to limit the gear shaft, wherein the chuck is made of an absorbent metal material; and a gear rack, which is fixedly connected to the frame, wherein the gear rack is located inside the rectangular tube, wherein the gear meshes with the gear rack.

[0007] The effect achieved by the above components is as follows: By setting up an adjustment device, the frame is first placed on the ground through the rectangular tube and the rack. At this time, the gear shaft is manually rotated, causing the gear shaft to drive the chuck to rotate. During the rotation of the gear shaft, the rack moves away from the rectangular tube, causing the rack to move the frame away from the ground. When the frame moves to the designated position, the inner wall of the perforated ring coincides with the inner wall of any slot in the chuck. At this time, the pin is manually inserted into the chuck and the perforated ring to fix the gear shaft, thereby achieving height adjustment of the frame. This reduces the situation where the frame height is mismatched with the tunnel height when the frame is placed in a pitted area, resulting in a gap between the frame and the tunnel wall, which cannot effectively support the tunnel. This improves the support effect and usage flexibility of the frame.

[0008] Preferably, a magnetic ring is fixed to one side of the pin, wherein the magnetic ring limits the position of the pin by adsorption with the chuck.

[0009] The effect achieved by the above components is that by setting up a magnetic ring, the magnetic ring can limit the pin by adsorbing the chuck, reducing the possibility of the pin sliding and coming out of the hole ring during use.

[0010] Preferably, a rocker arm is fixedly connected to one side of the gear shaft, wherein the surface of the rocker arm is provided with multiple anti-slip protrusions.

[0011] The effect achieved by the above components is that by setting up a rocker arm, personnel can manually rotate the rocker arm to drive the gear shaft to rotate, thereby improving the convenience and stability of manually rotating the gear shaft.

[0012] Preferably, a rubber pad is fixedly connected to the side of the rectangular tube near the toothed rod.

[0013] The effect achieved by the above components is that by setting rubber pads, the rack can be separated from the surface of the rectangular tube, reducing the possibility of large collisions and wear between the rack and the surface of the rectangular tube during movement.

[0014] Preferably, the surface of the rectangular tube is provided with multiple reinforcing ribs, wherein the reinforcing ribs are made of nickel-based alloy material.

[0015] The effect achieved by the above components is that by setting reinforcing ribs, the strength of the rectangular tube can be increased, reducing the possibility of deformation or breakage of the rectangular tube when subjected to excessive force.

[0016] Preferably, a plurality of conical blocks are fixedly connected to the side of the rectangular tube away from the frame, and the plurality of conical blocks are arranged at equal intervals.

[0017] The effect achieved by the above-mentioned components is that, by setting the conical block, when the rectangular tube is placed on the ground, the conical block can be inserted into the soil to limit the rectangular tube and reduce the possibility of the rectangular tube sliding.

[0018] Preferably, the inner wall of the hole in the rectangular tube is slidably connected with a rivet.

[0019] The effect achieved by the above components is that by setting rivets, personnel can insert the rivets into the ground through the holes of the rectangular tube to provide limit and reinforcement for the rectangular tube, further improving the placement stability of the rectangular tube and reducing the occurrence of displacement of the rectangular tube.

[0020] The beneficial effects of this utility model are:

[0021] By setting an adjustment device, the support height of the frame can be freely adjusted, reducing the situation where the frame height is not compatible with the roadway height when the frame is placed in a pit or uneven area, resulting in a gap between the frame and the inner wall of the roadway and failing to effectively support the roadway. This improves the support effect and flexibility of the frame. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the cone-shaped block of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the rectangular tube of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the chuck of this utility model.

[0027] Legend: 1. Frame; 2. Adjustment device; 21. Rectangular tube; 22. Hole ring; 23. Pin; 24. Magnetic ring; 25. Conical block; 26. Rivet; 27. Reinforcing rib; 28. Rubber pad; 29. ​​Gear rack; 210. Gear shaft; 211. Chuck; 212. Rocker arm. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Figure 1-4 The coal mine excavation support device shown includes: a frame 1, which is placed in a coal mine roadway to provide support for the roadway; and an adjustment device 2, which is located at the bottom of the frame 1 to adjust the support height of the frame 1.

[0031] Figure 2 , Figure 3 and Figure 4 The adjustment device 2 shown includes: a rectangular tube 21, with a perforated ring 22 fixedly connected to one side of the rectangular tube 21, wherein a pin 23 is slidably connected to the inner wall of the perforated ring 22; a gear shaft 210, which is rotatably mounted on the rectangular tube 21 via bearings, wherein the gear shaft 210 is located inside the perforated ring 22 and the rectangular tube 21; a chuck 211, which is fixedly connected to the gear shaft 210, wherein the pin 23 is located inside the chuck 211 to limit the gear shaft 210, wherein the chuck 211 is made of a metal-absorbing material; and a gear 29, which is fixedly connected to the frame 1, wherein the gear 29 is located inside the rectangular tube 21, wherein the gear meshes with the gear 29. By setting the adjustment device 2, the frame 1 is first placed on the ground via the rectangular tube 21 and the gear 29. Manually rotate the gear shaft 210 to drive the chuck 211 to rotate. During the rotation, the gear shaft 210 drives the rack 29 to move away from the rectangular cylinder 21, which in turn drives the frame 1 to move away from the ground. When the frame 1 moves to the designated position, the inner wall of the perforated ring 22 coincides with the inner wall of any slot in the chuck 211. At this point, manually insert the pin 23 into the chuck 211 and the perforated ring 22 to fix the gear shaft 210. This allows for height adjustment of the frame 1, reducing the mismatch between the height of the frame 1 and the tunnel height when the frame 1 is placed in a pitted area, which could cause gaps between the frame 1 and the tunnel wall and prevent effective support for the tunnel. This improves the support effect and flexibility of the frame 1.

[0032] Figure 2 , Figure 3 and Figure 4A magnetic ring 24 is fixedly connected to one side of the pin 23 shown. The magnetic ring 24 limits the pin 23 by adsorbing with the chuck 211. By setting the magnetic ring 24, the magnetic ring 24 can limit the pin 23 by adsorbing with the chuck 211, reducing the possibility of the pin 23 sliding and dislodging from the hole ring 22 during use. A rocker arm 212 is fixedly connected to one side of the gear shaft 210. The surface of the rocker arm 212 is provided with multiple anti-slip protrusions. By setting the rocker arm 212, the operator can manually rotate the rocker arm 212 to drive the gear shaft 210 to rotate, improving the convenience and stability of manually rotating the gear shaft 210.

[0033] Figure 2 , Figure 3 and Figure 4 A rubber pad 28 is fixedly connected to the side of the rectangular tube 21 near the toothed rod 29. By setting the rubber pad 28, the toothed rod 29 can be separated from the surface of the rectangular tube 21, reducing the possibility of large collision and wear between the toothed rod 29 and the surface of the rectangular tube 21 during movement. The surface of the rectangular tube 21 is provided with multiple reinforcing ribs 27, which are made of nickel-based alloy. By setting the reinforcing ribs 27, the strength of the rectangular tube 21 can be increased, reducing the possibility of deformation or breakage of the rectangular tube 21 when subjected to excessive force.

[0034] Figure 2 , Figure 3 and Figure 4 Multiple conical blocks 25 are fixedly connected to the side of the rectangular tube 21 away from the frame 1. The multiple conical blocks 25 are arranged at equal intervals. By setting the conical blocks 25, when the rectangular tube 21 is placed on the ground, the conical blocks 25 can be inserted into the soil to limit the rectangular tube 21 and reduce the possibility of the rectangular tube 21 sliding. Rivets 26 are slidably connected to the inner wall of the hole of the rectangular tube 21. By setting the rivets 26, personnel can insert the rivets 26 into the ground through the hole of the rectangular tube 21 to limit and reinforce the rectangular tube 21, further improving the placement stability of the rectangular tube 21 and reducing the possibility of the rectangular tube 21 shifting.

[0035] Working principle: First, place the frame 1 on the ground via the rectangular cylinder 21 and the gear 29. Then, manually rotate the rocker arm 212 to drive the gear shaft 210 to rotate, which in turn drives the chuck 211 to rotate. During the rotation, the gear shaft 210 drives the gear 29 to move away from the rectangular cylinder 21, which in turn drives the frame 1 to move away from the ground. When the frame 1 moves to the designated position, the inner wall of the perforated ring 22 coincides with the inner wall of any slot in the chuck 211. At this point, manually insert the pin 23 into the chuck 211 and the perforated ring 22 to fix the gear shaft 210, thereby adjusting the height of the frame 1 and moving it to a position that fits against the top wall of the tunnel for support and reinforcement.

[0036] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A coal mine excavation support device, characterized in that it comprises: A frame (1) is placed in a coal mine roadway to provide support for the roadway; Adjustment device (2), wherein the adjustment device (2) is set at the bottom of the frame (1) and is used to adjust the support height of the frame (1); The adjusting device (2) includes: a rectangular tube (21), a perforated ring (22) is fixedly connected to one side of the rectangular tube (21), wherein a pin (23) is slidably connected to the inner wall of the perforated ring (22); Gear shaft (210), which is rotatably mounted on rectangular tube (21) by bearing, wherein gear shaft (210) is placed inside the perforated ring (22) and rectangular tube (21); A chuck (211) is fixed to a gear shaft (210), wherein a pin (23) is placed inside the chuck (211) to limit the gear shaft (210), wherein the chuck (211) is made of a metal material that can absorb metal. A rack (29) is fixed to the frame (1), wherein the rack (29) is placed inside the rectangular tube (21), and a gear meshes with the rack (29).

2. The coal mine excavation support device according to claim 1, characterized in that: A magnetic ring (24) is fixed to one side of the pin (23), wherein the magnetic ring (24) limits the pin (23) by adsorbing with the chuck (211).

3. A coal mine excavation support device according to claim 2, characterized in that: A rocker arm (212) is fixedly connected to one side of the gear shaft (210), wherein the surface of the rocker arm (212) is provided with multiple anti-slip protrusions.

4. A coal mine excavation support device according to claim 3, characterized in that: A rubber pad (28) is fixedly connected to the side of the rectangular tube (21) near the toothed rod (29).

5. A coal mine excavation support device according to claim 4, characterized in that: The surface of the rectangular tube (21) is provided with multiple reinforcing ribs (27), wherein the reinforcing ribs (27) are made of nickel-based alloy material.

6. A coal mine excavation support device according to claim 5, characterized in that: The rectangular tube (21) is fixedly connected to a plurality of conical blocks (25) on the side away from the frame (1), and the plurality of conical blocks (25) are arranged at equal distances.

7. A coal mine excavation support device according to claim 6, characterized in that: The inner wall of the hole of the rectangular tube (21) is slidably connected with rivets (26).

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