Supporting equipment for coal mine excavation

Abstract

The utility model relates to the technical field of coal mine excavation, and discloses a supporting device for coal mine excavation, which comprises a hydraulic rod, a supporting plate, a hydraulic cylinder and a hydraulic cylinder, the rotating structure is arranged at the bottom of the hydraulic rod and used for supporting the hydraulic rod in a roadway, the rotating structure comprises bottom plates, rotating blocks, rotating plates and extension plates, the bottom plates are symmetrically and fixedly connected to the bottom of the hydraulic rod, the rotating blocks are rotatably connected between the symmetrical bottom plates, the rotating plates are fixedly connected to the side wall faces of the rotating blocks, and the extension plates are fixedly connected to the bottom of the hydraulic rod. The extending plates are movably connected to the wall faces of the rotating plates, the bottoms of the extending plates can make contact with the roadway ground, the hydraulic rods can be fixed to the uneven roadway ground by arranging the rotating structures, and the rotating structures control the positions of the extending plates so that the extending plates can abut against the interior of the roadway, and therefore the positions of the hydraulic rods can be fixed. Therefore, normal supporting can be carried out when the device is installed in an uneven roadway.

Description

Technical Field

[0001] The utility model belongs to the field of coal mine excavation, and in particular relates to a supporting device for coal mine excavation. Background Art

[0002] Tunnel support is a vital part of underground mining activities such as coal mines. It is of great significance to keep the tunnel unobstructed, maintain the stability of surrounding rocks and ensure the safe production of coal mines.

[0003] The commonly used support equipment is often not able to be installed adaptively according to the angle of the roadway ground when installed in the roadway, so there is an urgent need for a support equipment for coal mine excavation that can automatically adapt to the ground in the roadway.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the technical problems existing in the above-mentioned commonly used tunnel support, the basic concept of the technical solution adopted by the utility model is:

[0006] A support device for coal mine excavation, comprising:

[0007] A hydraulic rod, the top of which is fixedly connected with a support plate, which is a rectangular plate;

[0008] The rotating structure is arranged at the bottom of the hydraulic rod and is used to support the hydraulic rod in the tunnel. The rotating structure includes: a base plate, a rotating block, a rotating plate and an extension plate. The base plate is symmetrically fixedly connected to the bottom of the hydraulic rod. The rotating block is rotatably connected between the symmetrical base plates. The rotating plate is fixedly connected to the side wall of each rotating block. The extension plate is movably connected to the wall of each rotating plate. The bottom of the extension plate can contact the tunnel ground.

[0009] As a preferred embodiment of the present invention, the base plate is a semi-capsule-shaped plate, the rotating block is a semi-capsule-shaped block, the rotating blocks are symmetrically arranged between the symmetrical base plates, the rotating plate is a rectangular plate, the extension plate is a plate with an L-shaped cross-section, and the top of the extension plate can fit together with the bottom edge of the rotating plate.

[0010] As a preferred embodiment of the present invention, the rotating structure also includes a rotating groove, a rotating column, a bolt and an anti-slip rod. The rotating groove is opened on the wall of each base plate, the rotating column is rotatably connected in the rotating groove of the wall of each base plate, the bolt is threadedly connected to the top of each rotating plate, and the anti-slip rod is fixedly connected to the bottom of each extension plate.

[0011] As a preferred embodiment of the present invention, the base plate can adapt to the rotation of the rotating column, each rotating column can be fixedly connected to the corresponding rotating block wall, the bolt can pass through the top of the rotating plate, and the bottom of the bolt can be rotatably connected to the corresponding extension plate wall. The anti-slip rod is a rod with a triangular cross-section, and multiple anti-slip rods are evenly arranged at the bottom of each extension plate.

[0012] As a preferred embodiment of the present invention, the rotating structure also includes a load-bearing plate, a staggered block, a staggered groove and a force-dividing block. The load-bearing plate is fixedly connected to the wall surface of the rotating block above each bolt, the staggered block is fixedly connected to the side wall surface of the symmetrical rotating plate, the staggered groove is opened on the wall surface of the rotating plate on the same side as the staggered block, and the force-dividing block is symmetrically fixed on the wall surfaces on both sides of the hydraulic rod, and the symmetrical force-dividing blocks and the symmetrical load-bearing plates are aligned.

[0013] As a preferred embodiment of the present invention, the staggered block is an arc-shaped block, the staggered groove can adapt to the size of the staggered block, the staggered block is arranged on the front wall of one of the rotating plates, and the staggered block on the other rotating plate wall is located on the rear wall of this rotating plate.

[0014] As a preferred embodiment of the present invention, the wall surface of the hydraulic rod is also provided with a folding structure, which includes a limiting groove, a receiving groove, a locking frame and a limiting rod. The limiting groove is symmetrically opened on the front and rear wall surfaces of the hydraulic rod, and the receiving groove is opened at the bottom of each force component block. The locking frame is slidably connected in the receiving groove, and the limiting rod is symmetrically fixedly connected at the top of the locking frame.

[0015] As a preferred embodiment of the present invention, the limiting groove is a rectangular groove, the receiving groove is also a rectangular groove, the locking frame is a rectangular frame, the receiving groove can adapt to the height of the locking frame, the limiting rod is an inverted L-shaped rod, and the symmetrical limiting rods can slide along the corresponding limiting groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up a rotating structure, the hydraulic rod can be fixed on the uneven tunnel ground. The rotating structure controls the position of the extension plate so that the extension plate contacts the tunnel and thus fixes the position of the hydraulic rod. Therefore, this solution can be installed in an uneven tunnel and can also provide normal support.

[0018] 2. By setting up a folding structure, the position of the symmetrical rotating plate can be fixed by the automatically descending locking frame when it is stored. The staggered blocks can be staggered from the staggered grooves, and the folding structure can facilitate the storage of the device.

[0019] The specific implementation of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the attached figure:

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 This is an exploded view of the bottom structure of the hydraulic rod of the utility model;

[0023] Figure 3 This is a three-dimensional diagram of the rotating block of the utility model;

[0024] Figure 4 This is an exploded view of the hydraulic rod and lock frame of the utility model.

[0025] In the figure: 20, hydraulic rod; 21, support plate; 22, limit groove; 23, receiving groove; 24, locking frame; 25, limit rod; 30, bottom plate; 31, rotating groove; 32, rotating column; 33, rotating block; 34, bearing plate; 35, bolt; 36, rotating plate; 37, offset block; 38, offset groove; 39, force distribution block; 40, extension plate; 41, anti-slip bar. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0027] like Figure 1 、 Figure 2 and Figure 4 As shown, a supporting device for coal mine excavation includes: a hydraulic rod 20, the top of the hydraulic rod 20 is fixedly connected to a support plate 21, and the support plate 21 is a rectangular plate. This is an existing technology and will not be described in detail here.

[0028] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the rotating structure is arranged at the bottom of the hydraulic rod 20 to support the hydraulic rod 20 in the tunnel. The rotating structure includes: a base plate 30, a rotating block 33, a rotating plate 36 and an extension plate 40. The base plate 30 is symmetrically fixedly connected to the bottom of the hydraulic rod 20, the rotating block 33 is rotatably connected between the symmetrical base plates 30, the rotating plate 36 is fixedly connected to the side wall of each rotating block 33, and the extension plate 40 is movably connected to the wall of each rotating plate 36. The bottom of the extension plate 40 can contact the tunnel ground.

[0029] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the base plate 30 is a semi-capsule-shaped plate, the rotating block 33 is a semi-capsule-shaped block, and the rotating block 33 is symmetrically arranged between the symmetrical base plates 30. The rotating plate 36 is a rectangular plate, and the extension plate 40 is a plate with an L-shaped cross-section. The top of the extension plate 40 can fit with the bottom edge of the rotating plate 36. The rotating structure also includes a rotating groove 31, a rotating column 32, a bolt 35 and an anti-slip bar 41. The rotating groove 31 is opened on the wall of each base plate 30, and the rotating column 32 is rotatably connected to the rotating groove 31 on the wall of each base plate 30. The bolt 35 is threadedly connected to the top of each rotating plate 36, and the anti-slip bar 41 is fixedly connected to the bottom of each extension plate 40. The base plate 30 can adapt to the rotation of the rotating column 32, and each rotating column 32 can be fixedly connected to the wall of the corresponding rotating block 33. The bolt 35 can pass through the top of the rotating plate 36, and the bottom of the bolt 35 can fit with the corresponding extension plate The wall surface of the plate 40 is rotatably connected, and the anti-slip rod 41 is a rod with a triangular cross-section. A plurality of anti-slip rods 41 are evenly arranged at the bottom of each extension plate 40. The rotating structure also includes a load-bearing plate 34, a staggered block 37, a staggered groove 38 and a force-dividing block 39. The load-bearing plate 34 is fixedly connected to the wall surface of the rotating block 33 above each bolt 35. The staggered block 37 is fixedly connected to the side wall surface of the symmetrical rotating plate 36. The staggered groove 38 is opened on the wall surface of the rotating plate 36 on the same side as the staggered block 37. The force-dividing block 39 is symmetrically fixedly connected on the wall surfaces of both sides of the hydraulic rod 20. The symmetrical force-dividing blocks 39 and the symmetrical load-bearing plates 34 are aligned in position. The staggered block 37 is an arc-shaped block. The staggered groove 38 can adapt to the size of the staggered block 37. The staggered block 37 is arranged on the front wall surface of one of the rotating plates 36, and the staggered block 37 on the wall surface of the other rotating plate 36 is located on the rear wall surface of this rotating plate 36;

[0030] During specific use, the symmetrical extension plate 40 is first turned over with the rotating column 32 as the center and placed in the roadway. Then, the power supply of the hydraulic rod 20 is turned on. When the power supply is turned on, the hydraulic rod 20 drives the support plate 21 to move upward and support the upper part of the roadway. When placed in an uneven roadway, the bolt 35 is rotated. The bolt 35 moves downward through the threaded connection with the rotating plate 36. The extension plate 40 can move synchronously with the bolt 35. The extension plate 40 can drive the anti-slip rod 41 to contact the roadway ground, thereby fixing the hydraulic rod 20 in the uneven roadway.

[0031] To sum up, by setting up a rotating structure, the hydraulic rod 20 can be fixed on the uneven tunnel ground. The rotating structure controls the position of the extension plate 40 so that the extension plate 40 contacts the tunnel and thus fixes the position of the hydraulic rod 20. Therefore, this solution can be installed in an uneven tunnel and can also provide normal support.

[0032] like Figure 1 、 Figure 2 and Figure 4As shown, the wall surface of the hydraulic rod 20 is further provided with a folding structure, which includes a limiting groove 22, a receiving groove 23, a locking frame 24 and a limiting rod 25. The limiting groove 22 is symmetrically opened on the front and rear wall surfaces of the hydraulic rod 20, and the receiving groove 23 is respectively opened at the bottom of each force component 39. The locking frame 24 is slidably connected in the receiving groove 23. The limiting rod 25 is symmetrically fixedly connected at the top of the locking frame 24. The limiting groove 22 is a rectangular groove, the receiving groove 23 is also a rectangular groove, and the locking frame 24 is a rectangular frame. The receiving groove 23 can adapt to the height of the locking frame 24. The limiting rod 25 is an inverted L-shaped rod. The symmetrical limiting rods 25 can slide along the corresponding limiting groove 22;

[0033] When the lock is in use and needs to be stored, the symmetrical rotating plate 36 is turned downward with the rotating column 32 as the center. As the rotating block 33 rotates to face the plane downward, the locking frame 24 will slide down from the receiving groove 23 due to inertia. When the locking frame 24 moves, it will drive the limiting rod 25 to slide along the limiting groove 22. The locking frame 24 can frame the symmetrical rotating column 32 in its cavity.

[0034] In summary, by setting up a folding structure, the automatically descending locking frame 24 can fix its position when the symmetrical rotating plate 36 is stored, and the staggered block 37 can be staggered from the staggered groove 38, and the folding structure can facilitate the storage of the device.

[0035] Working principle: First, flip the symmetrical extension plate 40 with the rotating column 32 as the center and place it in the tunnel, then start the power of the hydraulic rod 20. When the power is turned on, the hydraulic rod 20 will drive the support plate 21 to move upward and support the top of the tunnel. When placed in an uneven tunnel, rotate the bolt 35, and the bolt 35 will move downward through the threaded connection with the rotating plate 36. The extension plate 40 can move synchronously with the bolt 35. The extension plate 40 can drive the anti-slip rod 41 to resist the tunnel ground, thereby fixing the hydraulic rod 20 in the uneven tunnel.

[0036] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A support device for coal mine excavation, characterized in that: include: A hydraulic rod (20), the top of which is fixedly connected with a support plate (21), which is a rectangular plate; The rotating structure is arranged at the bottom of the hydraulic rod (20) and is used to support the hydraulic rod (20) in the tunnel. The rotating structure includes: a bottom plate (30), a rotating block (33), a rotating plate (36) and an extension plate (40). The bottom plate (30) is symmetrically fixedly connected to the bottom of the hydraulic rod (20), the rotating block (33) is rotatably connected between the symmetrical bottom plates (30), the rotating plate (36) is fixedly connected to the side wall surface of each rotating block (33), and the extension plate (40) is movably connected to the wall surface of each rotating plate (36). The bottom of the extension plate (40) can contact the tunnel ground.

2. A support device for coal mine excavation according to claim 1, characterized in that: The base plate (30) is a semi-capsule-shaped plate, the rotating block (33) is a semi-capsule-shaped block, the rotating block (33) is symmetrically arranged between the symmetrical base plates (30), the rotating plate (36) is a rectangular plate, and the extension plate (40) is a plate with an L-shaped cross-section, and the top of the extension plate (40) can be in contact with the bottom edge of the rotating plate (36).

3. The support equipment for coal mine excavation according to claim 1, characterized in that: The rotating structure further comprises a rotating groove (31), a rotating column (32), a bolt (35) and an anti-slip rod (41), wherein the rotating groove (31) is opened on the wall surface of each base plate (30), the rotating column (32) is rotatably connected in the rotating groove (31) on the wall surface of each base plate (30), the bolt (35) is threadedly connected to the top of each rotating plate (36), and the anti-slip rod (41) is fixedly connected to the bottom of each extension plate (40).

4. The support equipment for coal mine excavation according to claim 3, characterized in that: The bottom plate (30) can adapt to the rotation of the rotating column (32), each rotating column (32) can be fixedly connected to the wall of the corresponding rotating block (33), the bolt (35) can pass through the top of the rotating plate (36), and the bottom of the bolt (35) can be rotatably connected to the wall of the corresponding extension plate (40), and the anti-slip rod (41) is a rod with a triangular cross-section, and multiple anti-slip rods (41) are evenly arranged at the bottom of each extension plate (40).

5. The support equipment for coal mine excavation according to claim 3, characterized in that: The rotating structure also includes a load-bearing plate (34), a staggered block (37), a staggered groove (38) and a force-dividing block (39). The load-bearing plate (34) is fixedly connected to the wall surface of the rotating block (33) above each bolt (35). The staggered block (37) is fixedly connected to the side wall surface of the symmetrical rotating plate (36). The staggered groove (38) is opened on the wall surface of the rotating plate (36) on the same side as the staggered block (37). The force-dividing block (39) is symmetrically fixedly connected to the wall surfaces on both sides of the hydraulic rod (20). The symmetrical force-dividing blocks (39) and the symmetrical load-bearing plate (34) are aligned in position.

6. The support equipment for coal mine excavation according to claim 5, characterized in that: The staggered block (37) is an arc-shaped block, and the staggered groove (38) can adapt to the size of the staggered block (37). The staggered block (37) is set on the front wall of one of the rotating plates (36), and the staggered block (37) on the wall of the other rotating plate (36) is located on the rear wall of this rotating plate (36).

7. The support equipment for coal mine excavation according to claim 1, characterized in that: The wall surface of the hydraulic rod (20) is also provided with a folding structure, which includes a limiting groove (22), a receiving groove (23), a locking frame (24) and a limiting rod (25). The limiting groove (22) is symmetrically opened on the front and rear wall surfaces of the hydraulic rod (20), the receiving groove (23) is opened at the bottom of each force component block (39), the locking frame (24) is slidably connected in the receiving groove (23), and the limiting rod (25) is symmetrically fixedly connected to the top of the locking frame (24).

8. The support equipment for coal mine excavation according to claim 7, characterized in that: The limiting groove (22) is a rectangular groove, the receiving groove (23) is also a rectangular groove, the locking frame (24) is a rectangular frame, the receiving groove (23) can adapt to the height of the locking frame (24), the limiting rod (25) is an inverted L-shaped rod, and the symmetrical limiting rods (25) can slide along the corresponding limiting groove (22).

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