Special drilling machine for preventing water in coal mine tunnel

Abstract

The utility model discloses a special drilling machine for preventing water in a coal mine tunnel, which comprises a first connecting seat, two groups of slidable clamping pieces are arranged in an inner cavity of the first connecting seat in a mirroring manner, each clamping piece comprises a first clamping block and a second clamping block, and the two groups of first clamping blocks are mounted in the inner cavity of the first connecting seat in a sliding manner; the first clamping blocks can achieve distance adjustment through the first driving assembly, the second clamping blocks are integrally formed at one ends of the first clamping blocks, the four sets of balls are rotationally installed on the inner sides of the second clamping blocks, and the four sets of balls are symmetrical pairwise, and the distance between the two sets of first clamping blocks can be adjusted through the first driving assembly; the distance between two sets of clamping pieces arranged in a mirror image mode is adjusted, the drill rod can be clamped, four sets of balls are symmetrical in pairs, every two sets of longitudinally-arranged balls can make contact with a rod body of the drill rod at the same time, the two sets of longitudinally-arranged balls are matched with each other to make linear contact with the drill rod, the drill rod clamping stability is improved, the balls are rotationally installed on the inner side of a second clamping block, and therefore the clamping stability of the drill rod is improved. And rotation and drilling of the drill rod cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling machines, in particular to a special drilling machine for preventing and controlling water in coal mine tunnels. Background Art

[0002] The special drilling machine for water prevention and control in coal mine tunnels is mainly used for water hazard prevention and control in coal mine tunnels, including detecting underground water sources, determining the location and depth of drilling holes, grouting reinforcement, etc. Through the use of drilling machines, water hazard problems in coal mine tunnels can be effectively prevented and controlled to ensure the safe production of coal mines. This type of drilling machine usually uses hydraulic or pneumatic as the power source, and drives the drill rod and drill bit to rotate and advance to drill a hole of a certain depth and diameter in the coal mine tunnel. During the drilling process, the drilling rig's rotation speed, propulsion force and other parameters can be adjusted as needed to adapt to different formation conditions and drilling requirements.

[0003] The drilling machine in the prior art needs to be installed with a clamp seat adapted to the diameter of the drill rod to fix drill rods of different diameters. It is inconvenient to adjust and adapt according to the diameter of the drill rod, and the adaptability is poor. For this reason, we propose a special drilling machine for coal mine tunnel water prevention and control. Utility Model Content

[0004] The utility model aims to provide a special drilling machine for preventing and controlling water in coal mine tunnels, so as to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special drilling machine for coal mine tunnel water prevention and control, comprising a first connecting seat, the inner cavity of the first connecting seat is mirror-imaged with two groups of slidable clamping members, the clamping members include a first clamping block and a second clamping block, the inner cavity of the first connecting seat is slidably installed with two groups of the first clamping blocks, the first clamping blocks can achieve spacing adjustment through a first driving assembly, one end of the first clamping block is integrally formed with the second clamping block, four groups of balls are rotatably installed on the inner side of the second clamping block, and the four groups of balls are symmetrical in pairs.

[0006] Preferably, the first driving assembly includes a first screw and a first motor, the first screw is installed in the inner cavity of the first connecting seat, two groups of the first clamping blocks are respectively mounted on the outside of both ends of the first screw, and the two are threadedly connected, and one end of the first screw is connected to the output end of the first motor.

[0007] Preferably, the first connecting seat is installed on one side of the bottom of the second connecting seat, and the second connecting seat can be rotated by a second driving assembly. The second driving assembly includes a third connecting seat, a tracked vehicle, a first gear, a second gear and a second motor. The third connecting seat is installed on the side of the bottom of the second connecting seat away from the first connecting seat, and the third connecting seat is rotatably connected to the tracked vehicle. A group of the first gears are installed at each end of the third connecting seat shaft, the first gear is meshed with the second gear, the second gear is connected to the output end of the second motor, and the first gear and the second gear are protected by a protective shell.

[0008] Preferably, the second connecting seat is connected to the third motor through a lifting assembly, and the lifting assembly includes a third motor, a slider, a second screw, a fourth motor and a sliding rod. The slider is slidably connected in the inner cavity of the second connecting seat, and the third motor is installed at the bottom of one end of the slider. The slider is penetrated by the second screw and the two are threadedly connected. The top end of the second screw is connected to the output end of the fourth motor, the slider is penetrated by the sliding rod, and the two are slidably connected, and the second screw and the sliding rod are both installed in the inner cavity of the second connecting seat.

[0009] Preferably, an operating table is installed at one end of the crawler vehicle away from the second connecting seat, and extension parts are integrally formed at the four corners of the crawler vehicle. Each of the four groups of extension parts is installed with a group of hydraulic telescopic rods, and the output end of the hydraulic telescopic rod extends downward and is installed with a support member.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model can adjust the spacing between the two groups of first clamping blocks through the first driving component, that is, adjust the spacing between the two groups of clamping members arranged in mirror image, so as to clamp the drill rod. Since the four groups of balls are symmetrical in pairs, every two groups of longitudinally arranged balls can contact the rod body of the drill rod at the same time, and the two cooperate with each other to form a line contact with the drill rod, thereby improving the stability of clamping the drill rod. In addition, the balls are rotatably installed on the inner side of the second clamping block, which will not affect the rotation and drilling of the drill rod. Compared with the prior art, drill rods of different diameters can be adapted without replacing the clamping seat, which is more efficient.

[0012] 2. The first screw of the utility model is specifically a forward and reverse screw. By starting the first motor, the forward and reverse screws are driven to rotate, which can drive the two groups of first clamping blocks threadedly connected to the two ends thereof to slide along the inner cavity of the first connecting seat, thereby realizing the spacing adjustment of the two groups of first clamping blocks. The second motor is specifically a double-shaft motor. By starting the second motor, the second gear is driven to rotate, so that the first gear meshing with the second gear rotates, and the third connecting seat is driven to rotate, so that the second connecting seat can be rotated to realize the angle adjustment. The protective shell can protect the first gear and the second gear.

[0013] 3. The output end of the third motor of the utility model can be connected to the drill rod, and drilling can be achieved by driving the two to be lowered through the lifting assembly. By starting the fourth motor, the second screw rod is driven to rotate, and the slider threadedly connected to it slides along the slide rod, which can drive the third motor to rise and fall. The operating table can control each component. By extending the hydraulic telescopic rod, the support can be pushed down to contact the ground, thereby improving the stability of the crawler vehicle. The hydraulic telescopic rod needs to cooperate with the hydraulic pump in the prior art to provide power for it. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view of the overall structure of the utility model;

[0015] Figure 2 It is an enlarged view of structure A of the utility model;

[0016] Figure 3 It is a front view of the overall structure of the utility model.

[0017] In the figure: 1, first connecting seat, 2, first clamping block, 3, second clamping block, 4, ball bearing, 5, first screw rod, 6, first motor, 7, second connecting seat, 8, third connecting seat, 9, crawler vehicle, 10, first gear, 11, second gear, 12, second motor, 13, third motor, 14, slider, 15, second screw rod, 16, fourth motor, 17, slide bar, 18, protective shell, 19, operating table, 20, extension piece, 21, hydraulic telescopic rod, 22, support piece. DETAILED DESCRIPTION

[0018] 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.

[0019] Embodiment 1

[0020] Please refer to Figure 1-3 As shown, the utility model provides a special drilling machine for water prevention and control in coal mine tunnels, including a first connecting seat 1, the inner cavity of the first connecting seat 1 is mirror-imaged with two groups of slidable clamping members, the clamping members include a first clamping block 2 and a second clamping block 3, the inner cavity of the first connecting seat 1 is slidably installed with two groups of first clamping blocks 2, the first clamping blocks 2 can achieve spacing adjustment through a first driving assembly, one end of the first clamping block 2 is integrally formed with the second clamping block 3, four groups of balls 4 are rotatably installed on the inner side of the second clamping block 3, and the four groups of balls 4 are symmetrical in pairs.

[0021] In this embodiment, the distance between the two groups of first clamping blocks 2 can be adjusted through the first driving component, that is, the distance between the two groups of mirror-image-arranged clamping members can be adjusted, so that the drill rod can be clamped. Since the four groups of balls 4 are symmetrical in pairs, every two groups of longitudinally arranged balls 4 can contact the rod body of the drill rod at the same time, and the two cooperate with each other to form a line contact with the drill rod, thereby improving the stability of clamping the drill rod, and the balls are rotatably installed on the inner side of the second clamping block 3, which will not affect the rotation and drilling of the drill rod. Compared with the prior art, drill rods of different diameters can be adapted without replacing the clamp seat, which is more efficient.

[0022] Please refer to Figure 1-3 As shown, the first driving assembly includes a first screw rod 5 and a first motor 6, the first screw rod 5 is installed in the inner cavity of the first connecting seat 1, and two groups of first clamping blocks 2 are respectively sleeved on the outside of the two ends of the first screw rod 5, and the two are threadedly connected, one end of the first screw rod 5 is connected to the output end of the first motor 6, the first connecting seat 1 is installed on one side of the bottom of the second connecting seat 7, and the second connecting seat 7 can be rotated by the second driving assembly, the second driving assembly includes a third connecting seat 8, a crawler 9, a first gear 10, a second gear 11 and a second motor 12, the third connecting seat 8 is installed on the side of the bottom of the second connecting seat 7 away from the first connecting seat 1, the third connecting seat 8 is rotatably connected to the crawler 9, a group of first gears 10 are respectively installed at both ends of the shaft of the third connecting seat 8, the first gear 10 is meshed with the second gear 11, the second gear 11 is connected to the output end of the second motor 12, and the first gear 10 and the second gear 11 are protected by a protective shell 18.

[0023] In this embodiment, the first screw 5 is specifically a forward and reverse screw. By starting the first motor 6, the forward and reverse screws are driven to rotate, which can drive the two groups of first clamping blocks 2 threadedly connected to the two ends thereof to slide along the inner cavity of the first connecting seat 1, thereby realizing the spacing adjustment of the two groups of first clamping blocks 2. The second motor 12 is specifically a double-shaft motor. By starting the second motor 12, the second gear 11 is driven to rotate, and the first gear 10 meshing with it is rotated, which drives the third connecting seat 8 to rotate, so that the second connecting seat 7 can be rotated to realize its angle adjustment. The protective shell 18 can protect the first gear 10 and the second gear 11.

[0024] Please refer to Figure 1-3As shown, the second connecting seat 7 is connected to the third motor 13 through a lifting assembly. The lifting assembly includes the third motor 13, a slider 14, a second screw 15, a fourth motor 16 and a slide bar 17. The slider 14 is slidably connected in the inner cavity of the second connecting seat 7. The third motor 13 is installed at the bottom of one end of the slider 14. The slider 14 is penetrated by the second screw 15, and the two are threadedly connected. The top of the second screw 15 is connected to the output end of the fourth motor 16. The slider 14 is penetrated by the slide bar 17, and the two are slidably connected. The second screw 15 and the slide bar 17 are both installed in the inner cavity of the second connecting seat 7. An operating table 19 is installed at one end of the crawler vehicle 9 away from the second connecting seat 7. Extension pieces 20 are integrally formed at the four corners of the crawler vehicle 9. Each of the four groups of extension pieces 20 is installed with a group of hydraulic telescopic rods 21. The output end of the hydraulic telescopic rod 21 extends downward and is installed with a support piece 22.

[0025] In this embodiment, the output end of the third motor 13 can be connected to the drill rod, and drilling can be achieved by driving the two to be lowered through the lifting assembly. By starting the fourth motor 16, the second screw 15 is driven to rotate, and the slider 14 threadedly connected to it slides along the slide rod 17, which can drive the third motor 13 to rise and fall. The operating table 19 can control each component. By extending the hydraulic telescopic rod 21, the support member 22 can be pushed down to contact the ground, thereby improving the stability of the crawler vehicle 9. The hydraulic telescopic rod 21 needs to cooperate with the hydraulic pump in the prior art to provide it with power.

[0026] Working principle: First, by starting the first motor 6 and driving the forward and reverse screws to rotate, the two groups of first clamping blocks 2 threadedly connected to the two ends thereof can be driven to slide along the inner cavity of the first connecting seat 1, so as to achieve the spacing adjustment of the two groups of first clamping blocks 2. The second motor 12 is specifically a double-output shaft motor. By starting the second motor 12, the second gear 11 is driven to rotate, so that the first gear 10 meshing with it is rotated, and the third connecting seat 8 is driven to rotate, so that the second connecting seat 7 can be rotated to achieve its angle adjustment. The protective shell 18 can protect the first gear 10 and the second gear 11. The output end of the third motor 13 can be connected to the drill rod, and the two can be lowered by the lifting assembly to achieve drilling. By starting the fourth motor 16, the second screw 15 is driven to rotate, so that the slider 14 threadedly connected to it slides along the slide rod 17, so as to drive the third motor 13 to be lifted and lowered. The operating table 19 can control each component. By extending the hydraulic telescopic rod 21, the support member 22 can be pushed down to contact the ground, thereby improving the stability of the crawler vehicle 9. The hydraulic telescopic rod 21 needs to cooperate with the hydraulic pump in the prior art to provide power for it.

[0027] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A special drilling machine for preventing and controlling water in coal mine tunnels, comprising a first connecting seat (1), characterized in that: The inner cavity of the first connecting seat (1) is mirror-imaged with two groups of slidable clamping members, and the clamping members include a first clamping block (2) and a second clamping block (3). The inner cavity of the first connecting seat (1) is slidably mounted with two groups of the first clamping blocks (2), and the spacing of the first clamping blocks (2) can be adjusted by a first driving component. The second clamping block (3) is integrally formed at one end of the first clamping block (2), and four groups of balls (4) are rotatably mounted on the inner side of the second clamping block (3), and the four groups of balls (4) are symmetrical in pairs.

2. A special drilling machine for coal mine tunnel water prevention and control according to claim 1, characterized in that: The first driving assembly comprises a first screw rod (5) and a first motor (6); the first screw rod (5) is installed in the inner cavity of the first connecting seat (1); two groups of the first clamping blocks (2) are respectively sleeved on the outside of the two ends of the first screw rod (5), and the two are threadedly connected; one end of the first screw rod (5) is connected to the output end of the first motor (6).

3. A special drilling machine for coal mine tunnel water prevention and control according to claim 2, characterized in that: The first connecting seat (1) is installed on one side of the bottom of the second connecting seat (7); the second connecting seat (7) can be rotated by a second driving assembly; the second driving assembly comprises a third connecting seat (8), a crawler (9), a first gear (10), a second gear (11) and a second motor (12); the third connecting seat (8) is installed on one side of the bottom of the second connecting seat (7) away from the first connecting seat (1); the third connecting seat (8) is rotatably connected to the crawler (9); a group of the first gear (10) is installed at each end of the shaft of the third connecting seat (8); the first gear (10) is meshed with the second gear (11); the second gear (11) is connected to the output end of the second motor (12); the first gear (10) and the second gear (11) are protected by a protective shell (18).

4. A special drilling machine for coal mine tunnel water prevention and control according to claim 3, characterized in that: The second connecting seat (7) is connected to the third motor (13) through a lifting assembly, and the lifting assembly includes the third motor (13), a slider (14), a second screw rod (15), a fourth motor (16) and a slide rod (17). The slider (14) is slidably connected in the inner cavity of the second connecting seat (7), and the third motor (13) is installed at the bottom of one end of the slider (14). The slider (14) is penetrated by the second screw rod (15), and the two are threadedly connected. The top end of the second screw rod (15) is connected to the output end of the fourth motor (16), and the slider (14) is penetrated by the slide rod (17), and the two are slidably connected. The second screw rod (15) and the slide rod (17) are both installed in the inner cavity of the second connecting seat (7).

5. A special drilling machine for coal mine tunnel water prevention and control according to claim 3, characterized in that: An operating platform (19) is installed at one end of the crawler vehicle (9) away from the second connecting seat (7); four corners of the crawler vehicle (9) are integrally formed with extension pieces (20); each of the four groups of extension pieces (20) is installed with a group of hydraulic telescopic rods (21); the output end of the hydraulic telescopic rod (21) extends downward and is installed with a support piece (22).

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