Mine supporting device

Abstract

The utility model belongs to the field of mine supporting, and relates to a mine supporting device which comprises an arch-shaped supporting frame, a stress monitoring assembly, a position adjusting assembly and a controller. An arc-shaped strip hole is formed in the arch-shaped supporting frame; the position adjusting assembly is arranged in the arc-shaped strip hole and freely slides in the arc-shaped strip hole. The stress monitoring assembly is connected with the position adjusting assembly and moves synchronously with the position adjusting assembly. The stress monitoring assembly is connected with the controller. The utility model provides a mine supporting device which can timely and comprehensively obtain stress data and is higher in safety.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mine support field relates to a mine support device, especially in a mine support device with stress detection mechanism. BACKGROUND

[0002] The mine support device refers to the support measures and equipment used for protecting personnel, equipment and mine body in the mining process, which mainly resists the pressure of the mine by setting support in the mine, prevents the mine collapse, and thus ensures the safety and smooth progress of the mining work. In the process of mine exploitation, due to the complex geological conditions and frequent mining activities, the stress state in the mine will change significantly, if the mine support device cannot detect stress, when the support structure is subjected to excessive pressure, it is impossible to find and take measures to deal with in time, which may lead to the failure of the support structure and further cause mine collapse and other safety accidents. SUMMARY

[0003] In order to solve the above technical problems existing in the background art, the utility model provides a mine support device which can obtain stress data in time and comprehensively and has higher safety.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A mine support device, characterized in that: the mine support device comprises an arc support frame, a stress monitoring assembly, a position adjusting assembly and a controller; the arc support frame is provided with an arc strip hole; the position adjusting assembly is placed in the arc strip hole and can slide in the arc strip hole; the stress monitoring assembly is connected with the position adjusting assembly and moves synchronously with the position adjusting assembly; the stress monitoring assembly is connected with the controller.

[0006] The stress monitoring assembly comprises a detection plate, a stress sensor, a groove and a contact plate; the detection plate is arc-shaped as a whole; the detection plate is connected with the position adjusting assembly and moves synchronously with the position adjusting assembly; the upper surface of the detection plate is provided with a groove, and the stress sensor is placed in the groove and connected with the controller; the contact plate covers the upper surface of the detection plate.

[0007] The stress monitoring assembly is one or more groups, and the number of the stress monitoring assemblies corresponds to the number of the position adjusting assemblies.

[0008] The position adjusting assembly comprises a fixing piece and a fastening bolt arranged on the fixing piece; the fixing piece is placed in the arc strip hole and can slide in the arc strip hole; the detection plate is fixedly arranged on the fixing piece.

[0009] The mine supporting device further comprises a first support and a second support which are completely identical in structure; the arc-shaped support frame is arranged on the top of the first support and the top of the second support; and the controller is fixedly arranged on the side wall of the first support or the second support.

[0010] The mine supporting device further comprises a connecting assembly; the arc-shaped support frame is connected to the top of the first support and the top of the second support through the connecting assembly.

[0011] The connecting assembly comprises a mounting block, a U-shaped groove and a bolt; the mounting block is arranged on the bottom of the arc-shaped support frame; the top of the first support and the top of the second support are respectively provided with the U-shaped groove; the mounting block is inserted into the U-shaped groove from the opening of the U-shaped groove; and the bolt penetrates through the U-shaped groove and the mounting block.

[0012] The mine supporting device further comprises a lifting assembly which is arranged in the first support and can be lifted along the axial direction of the first support; and the U-shaped groove is fixedly arranged on the top of the lifting assembly.

[0013] The lifting assembly comprises a lifting sleeve, a lead screw and a driving motor; the driving motor is arranged in the first support; the lead screw is arranged in the first support along the axial direction of the first support and is connected to the driving motor; the lifting sleeve is sleeved on the lead screw and is threadedly connected to the lead screw; the side wall of the lifting sleeve is fixedly provided with a guide block; the inner wall of the first support is provided with a guide groove along the axial direction of the first support; the guide block is arranged in the guide groove and can move along the axial direction of the guide groove; the U-shaped groove is fixedly arranged on the top of the lifting sleeve; and the driving motor drives the lifting sleeve to be lifted along the axial direction of the first support through the lead screw, and the driving motor is connected to the controller.

[0014] The mine supporting device further comprises an anchor rod which penetrates through the first support; and the axial direction of the anchor rod is non-parallel to the axial direction of the first support.

[0015] The advantages of the mine supporting device are as follows:

[0016] The mine supporting device comprises an arc-shaped support frame, a stress monitoring assembly, a position adjusting assembly and a controller; the arc-shaped support frame is provided with an arc-shaped slot; the position adjusting assembly is arranged in the arc-shaped slot and can slide in the arc-shaped slot; the stress monitoring assembly is connected to the position adjusting assembly and moves synchronously with the position adjusting assembly; and the stress monitoring assembly is connected to the controller. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a front view sectional structure schematic diagram of the mine supporting device provided by the utility model;

[0018] Figure 2 is an enlarged structure schematic diagram of the arc-shaped support frame adopted by the utility model;

[0019] Figure 3 is Figure 2 enlarged structure schematic diagram at A in the middle;

[0020] Figure 4 is a sectional structure schematic diagram of the first support adopted by the utility model;

[0021] in the drawing:

[0022] 1-arc-shaped support frame; 2-detection plate; 3-fixing piece; 4-arc-shaped strip hole; 5-mounting block; 6-U-shaped groove; 7-first support; 8-second support; 9-lifting sleeve; 10-controller; 11-alarm; 12-contact plate; 13-tightening bolt; 14-screw hole; 15-groove; 16-stress sensor; 17-bolt; 18-anchor rod; 19-guiding block; 20-screw rod; 21-driving motor. DETAILED DESCRIPTION

[0023] Referring to Figure 1 , the utility model provides a kind of mine supporting device, including arc-shaped support frame 1, stress monitoring component, position adjustment component and controller 10;Arc-shaped support frame 1 is provided with arc-shaped strip hole 4;Position adjustment component is placed in arc-shaped strip hole 4 and in arc-shaped strip hole 4 from like sliding;Stress monitoring component is connected with position adjustment component and moves synchronously with position adjustment component;Stress monitoring component is connected with controller 10.

[0024] Stress monitoring component includes detection plate 2, stress sensor 16, groove 15 and contact plate 12;Detection plate 2 is overall arc-shaped;Detection plate 2 is connected with position adjustment component and moves synchronously with position adjustment component;The upper surface of detection plate 2 is provided with groove 15, and stress sensor 16 is placed in groove 15 and connected with controller 10;Contact plate 12 is covered on the upper surface of detection plate 2.Exemplarily, contact plate 12 is arc surface structure, can be made of magnesite concrete material, when the stress of mine top changes, contact plate 12 is subjected to pressure, and the pressure is transmitted to stress sensor 16 in detection plate 2, and stress sensor 16 converts the stress or strain received into electrical signal and outputs to controller 10, and the processing system inside controller 10 processes and analyzes the stress data collected to assess the stress state of mine top, when data exceeds preset threshold, can issue alarm to remind staff through exemplary alarm 11 to avoid causing mine collapse and other safety accidents.

[0025] The stress monitoring assembly is one or more sets, and the number of stress monitoring assemblies corresponds to the number of position adjusting assemblies.

[0026] The position adjusting assembly comprises a fixing member 3 and a fastening bolt 13 arranged on the fixing member 3; the fixing member 3 is arranged in the arc-shaped strip hole 4 and can slide in the arc-shaped strip hole 4; and the detection plate 2 is fixedly arranged on the fixing member 3. The fixing member 3 is slid along the arc-shaped support frame 1, so that the position of the detection plate 2 can be adjusted. The adjustment can be required according to the change of the geological conditions in the mine, comprehensive stress data can be obtained by arranging detection points at different positions, and stronger support can be provided for the safety management of the mine; and the fixing member 3 after the position adjustment can be locked by loosening the fastening bolt 13, thereby effectively providing a stable support platform.

[0027] The mine supporting device further comprises a first support 7 and a second support 8 which has the same structure as the first support 7; the arc-shaped support frame 1 is arranged on the top of the first support 7 and the top of the second support 8; and the controller 10 is fixedly arranged on the side wall of the first support 7 or the side wall of the second support 8. Exemplarily, an alarm 11 connected with the controller 10 is further arranged outside the first support 7 or the second support 8.

[0028] The mine supporting device further comprises a connecting assembly; the arc-shaped support frame 1 is connected with the top of the first support 7 and the top of the second support 8 through the connecting assembly. Exemplarily, the connecting assembly comprises a mounting block 5, a U-shaped groove 6 and a bolt 17; the mounting block 5 is arranged at the bottom of the arc-shaped support frame 1; the top of the first support 7 and the top of the second support 8 are respectively provided with the U-shaped groove 6; the mounting block 5 is inserted into the U-shaped groove 6 from the opening of the U-shaped groove 6; and the bolt 17 penetrates through the U-shaped groove 6 and the mounting block 5. Exemplarily, screw holes 14 are formed on both sides of the mounting block 5, and both sides of the U-shaped groove 6 are connected with the screw holes 14 through the bolt 17 (that is, the bolt 17 is not entirely penetrated, but adopts a split structure to be fixed respectively), so that the arc-shaped support frame 1 can be disassembled with the first support 7 and the second support 8.

[0029] The mine supporting device further comprises a lifting assembly arranged in the first support 7 and capable of freely lifting along the axial direction of the first support 7, and the U-shaped groove 6 is fixedly arranged on the top of the lifting assembly. For example, the lifting assembly comprises a lifting sleeve 9, a lead screw 20 and a driving motor 21. The driving motor 21 is arranged in the first support 7. The lead screw 20 is arranged in the first support 7 along the axial direction of the first support 7 and is connected with the driving motor 21. The lifting sleeve 9 is sleeved on the outside of the lead screw 20 and is threadedly connected with the lead screw 20. The side wall of the lifting sleeve 9 is fixedly provided with a guide block 19. The inner wall of the first support 7 is provided with a guide groove along the axial direction of the first support 7. The guide block 19 is arranged in the guide groove and moves along the axial direction of the guide groove. The U-shaped groove 6 is fixedly arranged on the top of the lifting sleeve 9. The driving motor 21 drives the lifting sleeve 9 to freely lift along the axial direction of the first support 7 through the lead screw 20, and the driving motor 21 is connected with a controller 10. The driving motor 21 can drive the lead screw 20 to rotate, so that the lifting sleeve 9 moves up and down along the lead screw 20, thereby driving the arcuate support frame 1 to adjust the height, so as to adapt to different sizes of mine holes.

[0030] The mine supporting device further comprises an anchor rod 18 penetrating through the first support 7. The axial direction of the anchor rod 18 is non-parallel to the axial direction of the first support 7. One side of the first support 7 and the second support 8 is fixedly arranged in the rock body of the mine side wall through the anchor rod 18, so as to enhance the supporting capacity. For example, the anchor head part of the anchor rod 18 is in a conical structure, so as to be more easily inserted into the rock or coal body and be fixedly arranged.

[0031] In use, the detection plate 2 on the arcuate support frame 1 is in contact with the top of the mine, the position of the detection plate 2 is adjusted, and then the position of the detection plate 2 is fastened through the fastening bolt 13. Subsequently, the lead screw 20 is driven to rotate by the driving motor 21 in the first support 7 and the second support 8, so that the lifting sleeve 9 moves up and down along the lead screw 20, thereby driving the arcuate support frame 1 to adjust the height, so as to adapt to different sizes of mine holes. One side of the first support 7 and the second support 8 is fixedly arranged in the rock body of the mine side wall through the anchor rod 18. When the stress of the top of the mine changes, the contact plate 12 is subjected to pressure and transmits the pressure to the stress sensor 16 in the detection plate 2. The stress sensor 16 converts the received stress or strain into an electrical signal and outputs the electrical signal to the controller 10. The processing system in the controller 10 processes and analyzes the collected stress data, so as to evaluate the stress state of the top of the mine. When the data exceeds a preset threshold value, the controller 10 controls the alarm 11 to issue an alarm to remind the staff, so as to avoid causing safety accidents such as mine collapse.

Claims

1. A mine support device, characterized in that: The mine support device includes an arc-shaped support frame (1), a stress monitoring component, a position adjustment component, and a controller (10); the arc-shaped support frame (1) is provided with an arc-shaped slot (4); the position adjustment component is placed in the arc-shaped slot (4) and slides freely in the arc-shaped slot (4); the stress monitoring component is connected to the position adjustment component and moves synchronously with the position adjustment component; the stress monitoring component is connected to the controller (10).

2. The mine support device according to claim 1, characterized in that: The stress monitoring component includes a detection plate (2), a stress sensor (16), a groove (15), and a contact plate (12); the detection plate (2) is generally arc-shaped; the detection plate (2) is connected to the position adjustment component and moves synchronously with the position adjustment component; the upper surface of the detection plate (2) is provided with a groove (15), the stress sensor (16) is placed in the groove (15) and connected to the controller (10); the contact plate (12) covers the upper surface of the detection plate (2).

3. The mine support device according to claim 2, characterized in that: The stress monitoring components are one or more sets, and the number of stress monitoring components corresponds to the number of position adjustment components.

4. The mine support device according to claim 3, characterized in that: The position adjustment assembly includes a fixing member (3) and a fastening bolt (13) disposed on the fixing member (3); the fixing member (3) is placed in the arc-shaped slot (4) and slides freely in the arc-shaped slot (4); the detection plate (2) is fixedly disposed on the fixing member (3).

5. The mine support device according to claim 1, 2, 3, or 4, characterized in that: The mine support device also includes a first support (7) and a second support (8) with the same structure as the first support (7); the bow-shaped support frame (1) is mounted on the top of the first support (7) and the top of the second support (8); the controller (10) is fixedly mounted on the side wall of the first support (7) or the side wall of the second support (8).

6. The mine support device according to claim 5, characterized in that: The mine support device also includes a connecting component; the bow-shaped support frame (1) is connected to the top of the first support (7) and the top of the second support (8) respectively through the connecting component.

7. The mine support device according to claim 6, characterized in that: The connecting assembly includes a mounting block (5), a U-shaped groove (6), and a bolt (17); the mounting block (5) is placed at the bottom of the bow-shaped support frame (1); the top of the first support (7) and the top of the second support (8) are respectively provided with U-shaped grooves (6); the mounting block (5) is inserted into the U-shaped groove (6) through the opening of the U-shaped groove (6); the bolt (17) passes through the U-shaped groove (6) and the mounting block (5) respectively.

8. The mine support device according to claim 7, characterized in that: The mine support device also includes a lifting assembly placed inside the first support (7) and freely raised and lowered along the axial direction of the first support (7), and the U-shaped groove (6) is fixedly installed on the top of the lifting assembly.

9. The mine support device according to claim 8, characterized in that: The lifting assembly includes a lifting sleeve (9), a lead screw (20), and a drive motor (21); the drive motor (21) is placed inside the first support (7); the lead screw (20) is placed inside the first support (7) along the axial direction of the first support (7) and connected to the drive motor (21); the lifting sleeve (9) is fitted outside the lead screw (20) and threadedly engaged with the lead screw (20); a guide block (19) is fixedly provided on the side wall of the lifting sleeve (9); a guide groove is provided on the inner wall of the first support (7) along the axial direction of the first support (7); the guide block (19) is placed in the guide groove and moves along the axial direction of the guide groove; the U-shaped groove (6) is fixedly provided on the top of the lifting sleeve (9); the drive motor (21) drives the lifting sleeve (9) to move freely up and down along the axial direction of the first support (7) through the lead screw (20); the drive motor (21) is connected to the controller (10).

10. The mine support device according to claim 9, characterized in that: The mine support device also includes an anchor rod (18) that penetrates the first support (7); the axial direction of the anchor rod (18) is not parallel to the axial direction of the first support (7).

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