Roadway supporting device for mining

Abstract

The utility model discloses a mining roadway supporting device which comprises two supporting columns, the two supporting columns are symmetrically arranged and located on the two sides of a mine tunnel respectively, the tops of the supporting columns are connected with fixed arc-shaped tops, the two sides of the tops of the supporting columns are symmetrically provided with movable arc-shaped tops, and the top faces of the fixed arc-shaped tops and the top faces of the movable arc-shaped tops abut against the inner top face of the mine tunnel. One end of the movable arc-shaped top bottom surface is rotatably connected with the strut, a hydraulic rod is connected between the movable arc-shaped top bottom surface and the side surface of the strut, and an auxiliary supporting mechanism is arranged at the bottom of the strut. The movable arc-shaped plate is arranged to be matched with the fixed arc-shaped plate to jointly support the top of the mine tunnel, the supporting area is increased, the good supporting effect is achieved, meanwhile, the movable arc-shaped plate can be folded to a certain degree by shrinking the hydraulic rod before and after use, and therefore the space occupied by the device is reduced, and the device is convenient to use. And therefore, carrying and moving in a mine tunnel are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of mining, in particular to a tunnel supporting device for mining. Background Art

[0002] The Chinese patent published by announcement number: CN212927892U is specifically a support device for mining, including a support seat, a support tube, a support rod buffer mechanism and an arc-shaped support plate, the bottom end of the support tube is fixedly connected to the top of the support seat, the bottom end of the support rod is plugged into the inside of the support tube, the buffer mechanism is provided with the top of the support rod, and the arc-shaped support plate is located at the top of the buffer mechanism. The device drives the threaded lifting column to rotate through a rotating motor, and under the action of the thread, the support rod moves upward inside the support tube, driving the arc-shaped support plate to move upward, and then it is convenient to support the bottom of the tunnel through the arc-shaped support plate, so that the height of the entire device can be adjusted with the height of the mine tunnel.

[0003] However, the contact area between the arc-shaped support plate in the patent and the top surface of the mine tunnel is small, and it is difficult to provide good support for the mine tunnel. Utility Model Content

[0004] The utility model aims to provide a tunnel supporting device for mining, which has the advantages of stable support, not prone to tilting and deformation, and easy to carry, thus solving the problems in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A tunnel support device for mining includes pillars, wherein two pillars are symmetrically arranged and respectively located on both sides of the mine tunnel, the top of the pillar is connected to a fixed arc top, and movable arc tops are symmetrically arranged on both sides of the top of the pillar, the top surfaces of the fixed arc top and the movable arc top are abutted against the inner top surface of the mine tunnel, one end of the bottom surface of the movable arc top is rotatably connected to the pillar, a hydraulic rod is connected between the bottom surface of the movable arc top and the side surface of the pillar, and an auxiliary support mechanism is provided at the bottom of the pillar.

[0007] Preferably, a plurality of rows of supporting steel bars are fixed to the inner top surface of the movable arc-shaped top, and connecting plates are welded to the bottom surfaces of both sides of the movable arc-shaped top and the supporting steel bars.

[0008] Preferably, a first pivot block is provided at the intersection of the pillar and the fixed arc-shaped top, and the pillar is rotatably connected to the end of the connecting plate through the first pivot block. Second pivot blocks are welded to the position of the pillar directly below the first pivot block and the bottom of the connecting plate, and a hydraulic rod is connected between the second pivot blocks, and both ends of the hydraulic rod are rotatably connected to the second pivot blocks.

[0009] Preferably, the first pivot block and the second pivot block are in a right triangle structure.

[0010] Preferably, a mounting groove is provided in the bottom of the pillar, and limiting grooves are respectively provided on three sides of the bottom of the pillar facing the mine tunnel, and the limiting grooves are communicated with the mounting grooves.

[0011] Preferably, the auxiliary support mechanism includes a motor, a threaded rod, a sleeve, a cross bar, a support leg and a foot seat. The motor is fixed to the top of the mounting groove, and a threaded rod is provided at the output end of the motor. The bottom end of the threaded rod penetrates into the bottom of the mounting groove and is rotatably connected to the support.

[0012] Preferably, a sleeve is provided outside the threaded rod, the sleeve is threadedly matched with the threaded rod, a cross bar is fixed to the outer circumference of the sleeve, the cross bars are perpendicular to each other, and one end of the cross bar passes through a limiting groove and is fixedly connected to the support foot.

[0013] Preferably, a foot base is fixed to the bottom surface of the support leg, and the foot base abuts against the ground of the mine tunnel.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model provides a movable arc plate to cooperate with the fixed arc plate to support the mine tunnel roof, thereby increasing the support area and achieving a good support effect. At the same time, the movable arc plate can be folded to a certain extent by retracting the hydraulic rod before and after use, thereby reducing the space occupied by the device, making it easier to carry and move in the mine tunnel.

[0016] 2. The utility model is provided with supporting feet and foot seats to increase the force-bearing area between the pillar and the ground, thereby making the pillar more stable and less likely to tilt or fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the axonometric drawing of the overall structure of the utility model;

[0018] Figure 2 It is a side view of the overall structure of the utility model;

[0019] Figure 3 It is a plan view of the auxiliary support mechanism of the utility model;

[0020] Figure 4 For the utility model Figure 1 Enlarged view of point A in the middle.

[0021] In the figure: 1. pillar; 11. limiting groove; 2. fixed arc top; 3. movable arc top; 31. supporting steel bar; 32. connecting plate; 4. hydraulic rod; 5. auxiliary support mechanism; 51. motor; 52. threaded rod; 53. sleeve; 54. cross bar; 55. support foot; 56. foot seat; 6. first pivot block; 7. second pivot block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to solve the problem that the contact area between the supporting device and the top surface of the mine tunnel in the prior art is small and the mine tunnel cannot be effectively supported, the following technical solution is given. Please refer to Figure 1-4 ;

[0024] A tunnel support device for mining includes a pillar 1, wherein two pillars 1 are symmetrically arranged and respectively located on both sides of the mine tunnel, a fixed arc top 2 is connected to the top of the pillar 1, and movable arc tops 3 are symmetrically arranged on both sides of the top of the pillar 1, the top surfaces of the fixed arc top 2 and the movable arc top 3 are abutted against the inner top surface of the mine tunnel, one end of the bottom surface of the movable arc top 3 is rotatably connected to the pillar 1, a hydraulic rod 4 is connected between the bottom surface of the movable arc top 3 and the side surface of the pillar 1, and an auxiliary support mechanism 5 is provided at the bottom of the pillar 1.

[0025] Several rows of supporting steel bars 31 are fixed to the inner top surface of the movable arc-shaped top 3 , and connecting plates 32 are welded to the bottom surfaces of both sides of the movable arc-shaped top 3 and the supporting steel bars 31 .

[0026] Specifically, the support steel bars 31 are provided to increase the bearing pressure of the movable arc top 3 and prevent the movable arc top 3 from being deformed by pressure.

[0027] A first pivot block 6 is provided at the intersection of the pillar 1 and the fixed arc-shaped top 2. The pillar 1 is rotatably connected to the end of the connecting plate 32 through the first pivot block 6. Second pivot blocks 7 are welded to the position of the pillar 1 directly below the first pivot block 6 and the bottom of the connecting plate 32. A hydraulic rod 4 is connected between the second pivot blocks 7. Both ends of the hydraulic rod 4 are rotatably connected to the second pivot block 7 respectively; the first pivot block 6 and the second pivot block 7 are in a right-angled triangle structure.

[0028] Specifically, when the hydraulic rod 4 is extended, the piston drives the connecting plate 32 to expand upward, so that the movable arc top 3 abuts against the top of the mine tunnel, thereby increasing the contact area with the top of the mine tunnel and making the support more stable; the first pivot block 6 and the second pivot block 7 are arranged in a right-angled triangle structure to better disperse the force and avoid deformation or damage caused by pressure.

[0029] A mounting groove is arranged in the bottom of the pillar 1, and three sides of the bottom of the pillar 1 facing the mine tunnel are respectively provided with limiting grooves 11, and the limiting grooves 11 are communicated with the mounting groove.

[0030] The auxiliary support mechanism 5 includes a motor 51, a threaded rod 52, a sleeve 53, a cross bar 54, a support leg 55 and a foot seat 56. The motor 51 is fixed to the top of the mounting groove, and the output end of the motor 51 is provided with a threaded rod 52. The bottom end of the threaded rod 52 penetrates into the bottom of the mounting groove and is rotatably connected to the support pillar 1; a sleeve 53 is provided outside the threaded rod 52, and the sleeve 53 is threadedly matched with the threaded rod 52. A cross bar 54 is fixed to the outer peripheral surface of the sleeve 53. The cross bars 54 are perpendicular to each other. One end of the cross bar 54 passes through the limiting groove 11 and is fixedly connected to the support leg 55. The bottom surface of the support leg 55 is fixed with a foot seat 56, and the foot seat 56 abuts against the ground of the mine tunnel.

[0031] Specifically, the support legs 55 are dispersedly arranged around the pillar 1 to increase the force-bearing area of ​​the entire device and the ground. At the same time, the pillar 1 is not easy to tilt or fall, making the support more stable.

[0032] Working principle: During installation, the pillar 1 is vertically set up on both sides of the mine tunnel so that the fixed arc top 2 is against the top surface of the mine tunnel, and then the hydraulic rod 4 is started. The piston of the hydraulic rod 4 extends out and drives the connecting plate 32 to rotate upward around the first pivot block 6 through the second pivot block 7, thereby driving the movable arc top 3 to rotate upward until the top surface of the movable arc top 3 is against the top surface of the mine tunnel, so that the top surface of the mine tunnel is supported over a large area by the fixed arc top 2 and the movable arc top 3, thereby enhancing the stability of the mine tunnel, and then the motor 51 is started, and the motor 51 drives the threaded rod 52 to rotate, thereby driving the sleeve 53 to move downward, and the sleeve 53 drives the support leg 55 to move downward through the cross bar 54 until the foot seat 56 is against the ground of the mine tunnel, so that the pillar 1 is not easy to tilt, and the support stability is further improved.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel support device for mining, comprising a support column (1), characterized in that: The pillars (1) are symmetrically provided with two and are respectively located on both sides of the mine tunnel, the top of the pillar (1) is connected to a fixed arc top (2), and movable arc tops (3) are symmetrically provided on both sides of the top of the pillar (1), the top surfaces of the fixed arc top (2) and the movable arc top (3) are in contact with the inner top surface of the mine tunnel, one end of the bottom surface of the movable arc top (3) is rotatably connected to the pillar (1), a hydraulic rod (4) is connected between the bottom surface of the movable arc top (3) and the side surface of the pillar (1), and an auxiliary support mechanism (5) is provided at the bottom of the pillar (1); a plurality of rows of supporting steel bars (31) are fixed to the inner top surface of the movable arc top (3), and connecting plates (32) are welded to the bottom surfaces of both sides of the movable arc top (3) and the supporting steel bars (31); A first pivot block (6) is provided at the intersection of the support column (1) and the fixed arc-shaped top (2); the support column (1) is rotatably connected to the end of the connecting plate (32) via the first pivot block (6); a second pivot block (7) is welded to the support column (1) directly below the first pivot block (6) and to the bottom of the connecting plate (32); a hydraulic rod (4) is connected between the second pivot blocks (7); and both ends of the hydraulic rod (4) are rotatably connected to the second pivot block (7); A mounting groove is provided in the bottom of the support (1), and three side surfaces of the bottom of the support (1) facing the mine tunnel are respectively provided with limit grooves (11), and the limit grooves (11) are communicated with the mounting groove. The auxiliary support mechanism (5) comprises a motor (51), a threaded rod (52), a sleeve (53), a cross bar (54), a support foot (55) and a foot seat (56). The motor (51) is fixed at the top of the mounting groove, and the output end of the motor (51) is provided with a threaded rod (52). The bottom end of the threaded rod (52) penetrates into the bottom of the mounting groove and is rotatably connected to the support (1); a sleeve (53) is provided outside the threaded rod (52), and the sleeve (53) and the threaded rod (52) are threadedly matched. A cross bar (54) is fixed to the outer peripheral surface of the sleeve (53), and the cross bars (54) are perpendicular to each other. One end of the cross bar (54) penetrates through the limit groove (11) and is fixedly connected to the support foot (55).

2. A mining tunnel support device according to claim 1, characterized in that: The first pivot block (6) and the second pivot block (7) are in a right-angled triangle structure.

3. A mining tunnel support device according to claim 2, characterized in that: A foot base (56) is fixed to the bottom surface of the support leg (55), and the foot base (56) abuts against the ground of the mine tunnel.

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