Outburst prevention device for underground coal mine drilling construction

Abstract

The utility model discloses a coal mine underground drilling construction outburst prevention device in the technical field of drilling construction outburst prevention, which comprises a bottom plate, a handrail arranged on the left side wall of the bottom plate, two groups of first electric telescopic rods arranged at the top of the bottom plate, a top plate arranged at the tops of the two groups of first electric telescopic rods, and a fixing plate arranged at the top of the top plate. The top of the top plate is slidably connected with a movable plate and a sliding plate, the right side wall of the movable plate is provided with a damping assembly and two buffering damping assemblies, the right side wall of the sliding plate is provided with a motor, and the output end of the motor is connected with a drill rod. Under the action of the damping assembly and the buffering damping assembly, the drilling rod can play a role in damping and buffering during drilling, vibration of the drilling rod can be reduced, gas outburst caused by vibration generated during drilling is prevented, and safety production of a coal mine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-burst technology in drilling construction, in particular to an anti-burst device for underground drilling construction in a coal mine. Background Art

[0002] Coal and gas outburst is a type of special gas outburst phenomenon, that is, under the action of pressure, broken coal and gas suddenly erupt from the coal body into the mining space in large quantities. Coal and gas outburst is a powerful natural disaster in underground coal mine production. It seriously threatens the safe production of coal mines and is extremely destructive. At present, most underground drilling construction in coal mines uses drill rods for drilling, but the existing drill rods vibrate greatly during drilling, and gas is easy to outburst, thus affecting the safe production of coal mines. Therefore, we propose a coal mine underground drilling construction anti-outburst device. Utility Model Content

[0003] The utility model aims to provide a coal mine underground drilling construction anti-burst device to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal mine underground drilling construction anti-burst device, comprising a base plate, four groups of moving wheels are arranged at the bottom of the base plate, a handrail is arranged on the left side wall of the base plate, two groups of first electric telescopic rods are arranged on the top of the base plate, a top plate is arranged on the top of the two groups of first electric telescopic rods, a fixed plate is arranged on the top of the top plate, a moving plate and a sliding plate are slidably connected on the top of the top plate, a second electric telescopic rod is arranged on the right side wall of the fixed plate, one end of the second electric telescopic rod is connected to the left side wall of the moving plate, a shock absorbing assembly is arranged on the right side wall of the moving plate, two groups of buffer damping assemblies are arranged on the right side wall of the moving plate, a motor is arranged on the right side wall of the sliding plate, and a drill rod is connected to the output end of the motor.

[0005] Furthermore, the shock absorbing assembly includes two groups of fixed blocks provided on the right side wall of the movable plate, the two groups of fixed blocks are connected to the opposite side walls with sliding rods, the outer walls of the sliding rods are sleeved with two groups of sliding blocks, the two groups of sliding blocks are provided with springs away from the side walls, one ends of the two groups of springs are respectively connected to the opposite side walls of the two groups of fixed blocks, the right side walls of the two groups of sliding blocks are hinged with connecting rods, and one ends of the two groups of connecting rods are hinged to the left side wall of the sliding plate.

[0006] Furthermore, a guide groove is provided on the right side wall of the movable plate, and a guide block matching the guide groove is provided on the left side walls of the two groups of sliding blocks.

[0007] Furthermore, the buffer damping assembly includes a buffer sleeve provided on the right side wall of the movable plate, a piston head is slidably connected inside the buffer sleeve, a damping medium is provided on the left side of the buffer sleeve, a piston rod is provided on the right side wall of the piston head, one end of the piston rod passes through the right side wall of the buffer sleeve and is connected to the left side wall of the sliding plate, a damping spring is sleeved on the outer wall of the piston rod, one end of the damping spring is connected to the right side wall of the buffer sleeve, and the other end of the damping spring is connected to the left side wall of the sliding plate.

[0008] Furthermore, a limiting groove is provided on the top of the top plate, and limiting blocks matching the limiting groove are provided on the bottom of the sliding plate and the movable plate.

[0009] Furthermore, the bottom plate is arranged in an L shape.

[0010] Compared with the prior art, the beneficial effect of the utility model is that under the action of the shock absorbing component and the buffer damping component, the drill rod can play a damping and buffering effect when drilling, thereby reducing the vibration of the drill rod, preventing the vibration generated by drilling from causing gas to burst, and improving the safe production of coal mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the buffer sleeve of the utility model.

[0013] In the figure: 1. moving wheel; 2. bottom plate; 3. first electric telescopic rod; 4. top plate; 5. drill rod; 6. motor; 7. sliding plate; 8. shock absorbing assembly; 80. fixed block; 81. spring; 82. slider; 83. slide rod; 84. connecting rod; 9. buffer damping assembly; 90. buffer sleeve; 91. damping medium; 92. piston head; 93. piston rod; 94. damping spring; 10. moving plate; 11. second electric telescopic rod; 12. fixed plate. DETAILED DESCRIPTION

[0014] 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.

[0015] Embodiment 1:

[0016] See also Figure 1The utility model provides a technical solution: a coal mine underground drilling construction anti-burst device, comprising a bottom plate 2, the bottom plate 2 is arranged in an L shape, four groups of moving wheels 1 are arranged at the bottom of the bottom plate 2, a handrail is arranged on the left side wall of the bottom plate 2, two groups of first electric telescopic rods 3 are arranged on the top of the bottom plate 2, a top plate 4 is arranged on the top of the two groups of first electric telescopic rods 3, a fixed plate 12 is arranged on the top of the top plate 4, a moving plate 10 and a sliding plate 7 are slidably connected at the top of the top plate 4, a limiting groove is arranged on the top of the top plate 4, and the bottoms of the sliding plate 7 and the moving plate 10 are both provided with limiting blocks matching the limiting groove. Under the action of the limiting groove and the limiting block, the sliding plate 7 and the moving plate 10 move more stably on the top of the top plate 4, a second electric telescopic rod 11 is arranged on the right side wall of the fixed plate 12, one end of the second electric telescopic rod 11 is connected to the left side wall of the moving plate 10, a shock absorbing assembly 8 is arranged on the right side wall of the moving plate 10, and two groups of buffer damping assemblies 9 are arranged on the right side wall of the moving plate 10. A motor 6 is arranged on the right side wall of the sliding plate 7, and a drill rod 5 is connected to the output end of the motor 6.

[0017] See also Figure 1 The shock absorbing assembly 8 includes two groups of fixed blocks 80 provided on the right side wall of the movable plate 10, and the two groups of fixed blocks 80 are connected to the opposite side walls with sliding rods 83. The outer wall of the sliding rod 83 is sleeved with two groups of sliding blocks 82. A guide groove is opened on the right side wall of the movable plate 10, and the left side walls of the two groups of sliding blocks 82 are provided with guide blocks matching the guide groove. Under the action of the guide groove and the guide block, the sliding block 82 moves more stably on the outer wall of the sliding rod 83. The two groups of sliding blocks 82 are provided with springs 81 away from the side walls, and one end of the two groups of springs 81 is respectively connected to the opposite side walls of the two groups of fixed blocks 80. The right side walls of the two groups of sliding blocks 82 are hinged with connecting rods 84, and one end of the two groups of connecting rods 84 are hinged to the left side wall of the sliding plate 7.

[0018] See also Figure 2 The buffer damping assembly 9 includes a buffer sleeve 90 provided on the right side wall of the movable plate 10, a piston head 92 is slidably connected inside the buffer sleeve 90, a damping medium 91 is provided on the left side of the buffer sleeve 90, a piston rod 93 is provided on the right side wall of the piston head 92, one end of the piston rod 93 passes through the right side wall of the buffer sleeve 90 and is connected to the left side wall of the sliding plate 7, a damping spring 94 is sleeved on the outer wall of the piston rod 93, one end of the damping spring 94 is connected to the right side wall of the buffer sleeve 90, and the other end of the damping spring 94 is connected to the left side wall of the sliding plate 7.

[0019] Working principle: the drilling device can be moved under the action of the moving wheel 1, the first electric telescopic rod 3 drives the top plate 4 to move upward, the top plate 4 drives the drill rod 5 to move upward, the second electric telescopic rod 11 drives the moving plate 10 to move, the moving plate 10 drives the sliding plate 7 to move, the sliding plate 7 drives the drill rod 5 to move, the motor 6 drives the drill rod 5 to rotate to perform the drilling operation, and the drill rod 5 will vibrate when drilling, the sliding plate 7 will squeeze the connecting rod 84, the connecting rod 84 drives the slider 82 to move on the outer wall of the sliding rod 83, the slider 82 can squeeze the spring 81, the sliding plate 7 squeezes the piston rod 93 and the damping spring 94, the piston rod 93 drives the piston head 92 to squeeze the damping medium 91, and under the action of the damping spring 94 and the spring 81, it can play a damping and buffering effect, thereby reducing the vibration of the drill rod 5 and preventing the vibration caused by drilling from causing gas to protrude.

[0020] 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 coal mine underground drilling construction outburst prevention device, comprising a bottom plate (2), wherein the bottom of the bottom plate (2) is provided with four sets of moving wheels (1), characterized in that: The left side wall of the bottom plate (2) is provided with a handrail, the top of the bottom plate (2) is provided with two groups of first electric telescopic rods (3), the tops of the two groups of first electric telescopic rods (3) are provided with a top plate (4), the top of the top plate (4) is provided with a fixed plate (12), the top of the top plate (4) is slidably connected with a movable plate (10) and a sliding plate (7), the right side wall of the fixed plate (12) is provided with a second electric telescopic rod (11), one end of the second electric telescopic rod (11) is connected to the left side wall of the movable plate (10), the right side wall of the movable plate (10) is provided with a shock absorbing assembly (8), the right side wall of the movable plate (10) is provided with two groups of buffer damping assemblies (9), the right side wall of the sliding plate (7) is provided with a motor (6), and the output end of the motor (6) is connected with a drill rod (5).

2. The device for preventing outbursts during underground drilling construction in coal mines according to claim 1 is characterized in that: The shock absorbing assembly (8) comprises two groups of fixed blocks (80) provided on the right side wall of the movable plate (10), the two groups of fixed blocks (80) are connected to the opposite side walls with sliding rods (83), the outer walls of the sliding rods (83) are sleeved with two groups of sliding blocks (82), the two groups of sliding blocks (82) are provided with springs (81) away from the side walls, one end of the two groups of springs (81) are respectively connected to the opposite side walls of the two groups of fixed blocks (80), the right side walls of the two groups of sliding blocks (82) are hinged with connecting rods (84), one end of the two groups of connecting rods (84) are hinged to the left side wall of the sliding plate (7).

3. The device for preventing outbursts during underground drilling construction in coal mines according to claim 2 is characterized in that: The right side wall of the movable plate (10) is provided with a guide groove, and the left side walls of the two groups of sliding blocks (82) are provided with guide blocks matching the guide groove.

4. The device for preventing outbursts during underground drilling construction in coal mines according to claim 1 is characterized in that: The buffer damping assembly (9) comprises a buffer sleeve (90) provided on the right side wall of the movable plate (10), a piston head (92) being slidably connected inside the buffer sleeve (90), a damping medium (91) being provided on the left side inside the buffer sleeve (90), a piston rod (93) being provided on the right side wall of the piston head (92), one end of the piston rod (93) passing through the right side wall inside the buffer sleeve (90) and being connected to the left side wall of the sliding plate (7), a damping spring (94) being sleeved on the outer wall of the piston rod (93), one end of the damping spring (94) being connected to the right side wall of the buffer sleeve (90), and the other end of the damping spring (94) being connected to the left side wall of the sliding plate (7).

5. The device for preventing outbursts during underground drilling construction in coal mines according to claim 1 is characterized in that: The top of the top plate (4) is provided with a limiting groove, and the bottoms of the sliding plate (7) and the movable plate (10) are both provided with limiting blocks matching the limiting groove.

6. The device for preventing outbursts during underground drilling construction in coal mines according to claim 1, characterized in that: The bottom plate (2) is arranged in an L shape.

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