Mining punching device

Abstract

The invention discloses a mining punching device which comprises a fixing frame, and a supporting frame is arranged in the fixing frame in a sliding mode. Sliding grooves are formed in the centers of the two sides of the fixing frame, protruding blocks in sliding connection with the sliding grooves are fixedly arranged in the centers of the two sides of the fixing frame, a driving assembly is arranged in the center in the supporting frame, a sleeve is assembled at the bottom of the driving assembly, a drill bit is assembled in the sleeve, and adjusting shafts are fixedly arranged on the two sides of the driving assembly. When the located ground is uneven, in the relative movement process of the fixing frame and the supporting frame, the adjusting shaft can rotate under the action of the driving assembly, the sleeve and the drill bit, the drill bit is kept in the vertical state, and therefore the drilled hole is in the vertical state; and the driving assembly is started to enable the drill bit to rotate for punching work, so that the problem that the drill bit is inclined for punching due to uneven ground is solved.

Description

Technical Field

[0001] The invention relates to the technical field of mining, in particular to a mining drilling device. Background Art

[0002] In mining, vertical drilling is a common drilling method, which is suitable for a variety of situations, especially when precise control of drilling direction and depth is required.

[0003] Chinese Patent Publication No.: CN220815542U discloses a drilling device for blasting in open-pit mines, including a base, universal wheels are arranged on both sides of the bottom of the base, a rotating shaft is fixedly connected inside the universal wheels, adjustment boxes are fixedly connected on both sides of the bottom of the base, electric push rods are fixedly connected inside the two adjustment boxes, a push plate is fixedly connected to the output end of the electric push rod, positioning rods are fixedly connected on both sides of the bottom of the push plate, the bottom of the positioning rod is fixedly connected to a support seat, a slide plate is fixedly connected to the outside of the positioning rod, and a positioning block is fixedly connected to the bottom of the slide plate.

[0004] The above-mentioned device forms a stable support for the overall device through the support plate, but in actual use, the ground on which the device is located may be uneven. When the ground is uneven, when it is supported by the support plate and then the drilling operation is carried out, the uneven ground will cause the drilling device to tilt as a whole, thereby affecting the drilling direction and causing the drilling to be non-vertical or deviate from the designed path, or the center of gravity of the drilling device is unstable due to the uneven ground. During the drilling process, the equipment may shake or tilt, and may even cause the equipment to overturn, causing equipment damage and personal injury.

[0005] Therefore, it is necessary to provide a mining drilling device to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a mining drilling device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mining drilling device, comprising a fixed frame, a support frame slidably arranged in the fixed frame; slide grooves are arranged in the centers of both sides of the fixed frame, and protrusions slidably connected to the slide grooves are fixedly arranged in the centers of both sides of the fixed frame, a driving assembly is arranged in the center of the support frame, a sleeve is assembled at the bottom of the driving assembly, a drill bit is assembled in the sleeve, adjusting shafts are fixedly arranged on both sides of the driving assembly, one end of the adjusting shaft away from the driving assembly is rotatably connected to the support frame, a limiting assembly is arranged in the side wall of the support frame, and the limiting assembly is slidably matched with the adjusting shaft.

[0008] As a further solution of the present invention: the limit assembly includes a limit rod; an L-plate is fixedly arranged at the bottom of the limit rod, the limit rod is slidably arranged in the side wall of the support frame, the L-plate is slidably arranged in the protrusion, and the bottom end of the L-plate slides out of the bottom side wall of the protrusion, and the side wall of the adjustment shaft is provided with a limit hole that is slidably adapted to the limit rod, and the limit holes are arranged in a ring array along the center of the adjustment shaft.

[0009] As a further solution of the present invention: inner tubes are rotatably arranged on both sides of the support frame, the inner tubes are arranged below the adjustment shaft, and the inner tubes are arranged parallel to the adjustment shaft, the end of the inner tube close to the sleeve is elastically slidably connected to the outer tube through an elastic column, and the end of the outer tube away from the inner tube is fixedly provided with an arc plate.

[0010] As a further solution of the present invention: a fixing box is provided on the outer periphery of the inner tube, and a partition is provided on the inner wall of the bottom end of the fixing box and located above the inner tube, the fixing box is fixedly connected to the inner wall of the support frame, an airbag is provided in the fixing box, the bottom end of the airbag is fixed to the partition, a pressure plate is fixedly provided on the top of the airbag, a circular block is fixedly provided on the end of the pressure plate away from the support frame, a pressure rod is slidably provided in the circular block, and the end of the pressure rod away from the circular block is fixedly connected to the sleeve.

[0011] As a further solution of the present invention: an airway is arranged in the inner tube, and an air hole connected with the fixing box is arranged on the side wall of the inner tube close to the fixing box, so that the fixing box and the airway are connected, and a through hole is arranged in the center of the partition, so that the airbag is connected with the airway through the through hole, the fixing box and the air hole.

[0012] As a further solution of the present invention: one end of the inner tube away from the outer tube is drivingly connected to the adjusting shaft.

[0013] As a further solution of the present invention: a resistance plate is slidably attached to the top of the adjustment shaft, and the resistance plate is fixedly embedded in the inner wall of the support frame.

[0014] As a further solution of the present invention: one end of the adjusting shaft away from the driving assembly rotates and passes through the side wall of the supporting frame, the top of the fixed frame is slidably connected with a square plate, the square plate is arranged on one side of the adjusting shaft, a positioning plate is fixedly arranged on the side of the square plate close to the adjusting shaft, the bottom of the positioning plate is elastically connected with a positioning column, and a positioning hole that slides with the positioning column is arranged on the periphery of the end of the adjusting shaft.

[0015] As a further solution of the present invention: the end array of the adjustment shaft away from the driving assembly is provided with a tooth groove, the square plate is provided with teeth that cooperate with the tooth groove transmission, and the side wall of the support frame is provided with a guide rail that cooperates with the square plate in sliding connection.

[0016] As a further solution of the present invention: the guide rail includes a first channel; a second channel is arranged on the side of the first channel close to the adjusting shaft, a connected lifting portion is arranged at the top end of the first channel and the second channel, and a connected falling portion is arranged at the bottom end of the first channel and the second channel.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: through the cooperation of the adjusting shaft and the limit assembly, when in use, when the ground is uneven, during the relative movement of the fixed frame and the supporting frame, the adjusting shaft will rotate under the action of the driving assembly, the sleeve and the drill bit, so that the drill bit remains in a vertical state, thereby making the drilled hole in a vertical state. When the drill bit rotates to the vertical state, the driving assembly is started to rotate the drill bit to perform the drilling work, thereby avoiding the problem that the drill bit is tilted due to the uneven ground when drilling. When the L-plate contacts the bottom of the slide groove, and the protrusion continues to move so that the L-plate moves and contracts into the protrusion, the movement of the L-plate pushes the limit rod to move toward the limit hole, and extends into the limit hole to limit the position of the adjusted shaft after rotation, thereby maintaining the stability of the drill bit when drilling, thereby avoiding the safety problems that are easy to occur due to the rotation of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention.

[0019] Figure 2 It is a structural schematic diagram of a cross-section of the middle portion of the adjusting shaft in the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the limiting hole in the present invention.

[0021] Figure 4 For the present invention Figure 2 Schematic diagram of the structure at A in the middle.

[0022] Figure 5 It is a schematic diagram of the structure of the positioning column and the positioning groove in the present invention.

[0023] Figure 6 It is a structural schematic diagram of the resistance plate in the present invention.

[0024] Figure 7 It is a structural schematic diagram of the guide rail in the present invention.

[0025] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at B in the figure.

[0026] Fig. 9 It is a schematic diagram of the structure of the airbag in the present invention.

[0027] Fig.10It is a structural schematic diagram of a cross-section of the middle portion of the inner tube in the present invention.

[0028] In the figure: 1. fixed frame; 2. support frame; 3. adjustment shaft; 4. drive assembly; 5. sleeve; 6. drill bit; 7. square plate; 8. tooth groove; 9. positioning plate; 10. guide rail; 101. first channel; 102. return part; 103. lifting part; 104. second channel; 11. fixed box; 12. circular block; 13. inner tube; 131. airway; 14. outer tube; 15. arc plate; 16. pressure rod; 17. airbag; 18. limit rod; 19. limit hole; 20. slide groove; 201. bump; 21. L plate; 22. resistance plate; 23. positioning column; 24. pressure plate. DETAILED DESCRIPTION

[0029] See also Figure 1-Figure 10 In the embodiment of the present invention, the mining drilling device includes a fixed frame 1, preferably, a support frame 2 is slidably arranged in the fixed frame 1, a slide groove 20 is arranged at the center of both sides of the fixed frame 1, and a protrusion 201 slidably connected to the slide groove 20 is fixedly arranged at the center of both sides of the fixed frame 1, and a cylinder is assembled on the side walls of both sides of the support frame 2, and the telescopic output end of the cylinder is fixedly connected to the top of the fixed frame 1, and universal wheels are installed at the four corners of the bottom of the fixed frame 1, so that the drilling device has the function of moving, and support legs are installed at the four corners of the bottom of the support frame 2, so that the support frame 2 has stability when drilling, and a driving component 4 is arranged in the center of the support frame 2, and a sleeve 5 is assembled at the bottom of the driving component 4, and a drill bit 6 is assembled in the sleeve 5, and an adjusting shaft 3 is fixedly arranged on both sides of the driving component 4, and the end of the adjusting shaft 3 away from the driving component 4 is rotatably connected to the support frame 2.

[0030] Preferably, when the fixed frame 1 and the supporting frame 2 are in a horizontal state, the center of gravity of the driving assembly 4 is perpendicular to the central axis of the adjusting shaft 3, and the central axes of the sleeve 5 and the drill bit 6 are perpendicular to the central axis of the adjusting shaft 3. In this way, when the fixed frame 1 and the supporting frame 2 are not in a horizontal state, the driving assembly 4, the sleeve 5, and the drill bit 6 will rotate to a vertical state under the action of the adjusting shaft 3, thereby ensuring that when the ground at the drilling position is uneven, the drill bit 6 remains in a vertical state for drilling, thereby avoiding drilling when the drill bit 6 is tilted, resulting in the hole being tilted and inconsistent with the predetermined hole. The problem of this problem may occur during the drilling process, or during the drilling process, the center of gravity of the drilling device is unstable due to the uneven ground, which makes it easy to shake or tilt, and may even cause the problem of overturning; the driving component 4 is a prior art, and the specific driving component 4 can realize the function of pushing the sleeve 5 toward the fixed frame 1 and retracting it away from the fixed frame 1. At the same time, it can also drive the sleeve 5 to rotate. When the sleeve 5 rotates, it will drive the drill bit 6 to rotate. When the drill bit 6 rotates, drilling can be performed. The relevant structure and working principle of the driving component 4 will not be described in detail here.

[0031] During specific use, in the initial state, the protrusion 201 is at the top position in the slide groove 20, the bottoms of the fixed frame 1 and the support frame 2 are flush, and the support legs are higher than the height of the universal wheels. When drilling, the device is moved to a predetermined position, and then the cylinder output end is started to contract, so that the fixed frame 1 moves upward relative to the support frame 2, so that the support frame 2 contacts the ground through the support legs, and the support frame 2 is stably supported by the support legs. When the ground is uneven, during the relative movement of the fixed frame 1 and the support frame 2, the adjusting shaft 3 will rotate under the action of the driving assembly 4, the sleeve 5, and the drill bit 6, so that the drill bit 6 remains in a vertical state, so that the drilled holes are in a vertical state. When the drill bit 6 rotates to a vertical state, the driving assembly 4 is started to rotate the drill bit 6 to perform the drilling work, thereby avoiding the problem that the drill bit 6 is tilted due to the uneven ground when drilling.

[0032] See also Figure 2-Figure 6In order to keep the drill bit 6 automatically rotated to a vertical state and maintain stability during drilling, preferably, a limit assembly is provided in the side wall of the support frame 2, the limit assembly is slidably matched with the adjustment shaft 3, and the limit assembly includes a limit rod 18; an L plate 21 is fixedly provided at the bottom of the limit rod 18, the limit rod 18 is slidably provided in the side wall of the support frame 2, the L plate 21 is slidably provided in the protrusion 201, and the bottom end of the L plate 21 slides out of the bottom side wall of the protrusion 201, and the side wall of the adjustment shaft 3 is provided with a limit rod 18. 18 corresponds to the limit hole 19 of the sliding adaptation, and the limit hole 19 is arranged in a plurality of groups in a circular array along the center of the adjustment shaft 3; in the initial state, the limit rod 18 is below the limit hole 19, and the L plate 21 is located near the bottom of the protrusion 201, and the end of the L plate 21 away from the limit rod 18 protrudes from the bottom of the protrusion 201 and extends into the slide groove 20, and the length of the L plate 21 protruding from the protrusion 201 is equal to the length of the limit rod 18 extending into the limit hole 19; when in use, when punching, the cylinder is used to make the fixed The frame 1 and the support frame 2 move relative to each other, so that the protrusion 201 slides relatively in the slide groove 20 toward the bottom direction of the slide groove 20. In this process, under the gravity of the driving component 4, the sleeve 5 and the drill bit 6, the adjusting shaft 3 rotates. When the L plate 21 contacts the bottom of the slide groove 20, and the protrusion 201 continues to move, the L plate 21 moves and contracts into the protrusion 201. The movement of the L plate 21 pushes the limiting rod 18 to move toward the limiting hole 19, and extends into the limiting hole 19 to adjust the position of the adjusting shaft 3 after rotation. The limit position is set to maintain the stability of the drill bit 6 when drilling, avoiding the safety problems that are easy to occur due to the rotation of the drill bit 6; when the drilling is completed, the fixed frame 1 and the support frame 2 are moved and reset by the cylinder, and then the protrusion 201 is moved and reset, and the L plate 21 and the limit rod 18 are moved and reset in the direction away from the limit hole 19 under the action of gravity, and then the adjustment shaft 3 restores the rotation condition, so that when drilling next time, the adjustment shaft 3 can rotate to allow the drill bit 6 to adjust automatically.

[0033] See also Figure 2 , Figure 5 , Figure 6 Preferably, a resistance plate 22 is slidably fitted on the top of the adjusting shaft 3, and the resistance plate 22 is fixedly embedded in the inner wall of the supporting frame 2. The setting of the resistance plate 22 ensures that the adjusting shaft 3 has a certain resistance when rotating, thereby preventing the adjusting shaft 3 from rotating at a high speed without resistance, which may easily cause the driving component 4 to swing back and forth.

[0034] See also Figure 1-Figure 3 , Fig. 9 , Fig.10Preferably, inner tubes 13 are rotatably arranged on both sides of the support frame 2, and the inner tube 13 is arranged below the adjusting shaft 3 and close to the fixed frame 1, and the inner tube 13 is arranged parallel to the adjusting shaft 3. The end of the inner tube 13 close to the sleeve 5 is elastically slidably connected with the outer tube 14 through an elastic column, and the end of the outer tube 14 away from the inner tube 13 is fixedly provided with an arc plate 15, and the outer tube 14 is sleeved on the periphery of the inner tube 13. When the arc plate 15 is in contact with the sleeve 5, the arc plate 15 can stabilize the sleeve 5, because the drill bit 6 will vibrate during the drilling process, and the vibration of the drill bit 6 will be transmitted to the sleeve 5, and then to the driving assembly 4, and when the arc plate 15 is in contact with the sleeve 5, the arc plate 15 cooperates with the outer tube 14 and the inner tube 13 to limit and absorb the vibration generated by the sleeve 5, so as to avoid the problem that the sleeve 5 generates large vibration, resulting in faster wear of the drill bit 6 and the driving assembly 4 or even damage.

[0035] Further, preferably, the outer periphery of the inner tube 13 is provided with a fixing box 11, the bottom end of the fixing box 11 is sealed and rotatably connected to the inner tube 13, and the inner wall of the bottom end of the fixing box 11 is located above the inner tube 13 and is provided with a partition, the fixing box 11 is fixedly connected to the inner wall of the support frame 2, an airbag 17 is provided in the fixing box 11, the bottom end of the airbag 17 is fixed to the partition, the top end of the airbag 17 is fixedly provided with a pressure plate 24, and the end of the pressure plate 24 away from the support frame 2 is fixedly provided with A circular block 12 is provided with a pressure rod 16 which is slidably arranged inside the circular block 12. The end of the pressure rod 16 away from the circular block 12 is fixedly connected to the sleeve 5. An air passage 131 is provided in the inner tube 13. An air hole which is connected to the fixed box 11 is provided on the side wall of the inner tube 13 close to the fixed box 11. The fixed box 11 and the air passage 131 are connected through the air hole. A through hole is provided in the center of the partition, so that the airbag 17 is connected to the air passage 131 through the through hole, the fixed box 11 and the air hole.

[0036] When in use, in the initial state, the pressure rod 16 is in a position close to the driving assembly 4, the circular block 12 is in the top position of the fixed box 11, the pressure plate 24 is in the top position inside the fixed box 11, the airbag 17 is in an extended state, the outer tube 14 is in a position close to the support frame 2 on the inner tube 13, and the arc-shaped opening position on the arc plate 15 corresponds to the side wall of the sleeve 5; when the driving assembly 4 is started to drive the sleeve 5 to move downward, and the drill bit 6 moves to perform drilling work, in this process, the sleeve 5 moves downward to drive the pressure rod 16 to move downward, and the pressure rod 16 moves downward to push the circular block 12 to move downward, and the circular block 12 moves downward to drive the pressure plate 24 to move downward, and the downward movement of the pressure plate 24 causes the airbag 17 to contract under force, thereby causing the gas in the airbag 17 to enter the fixed box 11 through the through hole, and then enter the airway 131 through the air hole, thereby causing the outer tube 14 to move downward away from the support frame 2 and contact with the sleeve 5. The side wall of the sleeve 5 is fitted, and because the gas is compressible and the surfaces of the arc plate 15 and the sleeve 5 are both smoothly arranged, when the sleeve 5 rotates, there will be no problem of getting stuck due to the fitting of the arc plate 15. In this way, when the drill bit 6 is drilling a hole, when the drill bit 6 vibrates and transmits it to the sleeve 5, the arc plate 15 is subjected to a force and will deviate in the direction of the outer tube 14, thereby absorbing the stress on the sleeve 5, and stabilizing the sleeve 5 by the arc plate 15 to ensure that the sleeve 5 will not vibrate to a large extent during the drilling process of the drill bit 6. Of course, an elastic column between the outer tube 14 and the inner tube 13 can be arranged in the airway 131, and the elastic column and the airway 131 are slidably connected, so that after the gas in the airbag 17 enters the airway 131, the outer tube 14 is pushed in the direction of the arc plate 15 by pushing the elastic column, so that when the arc plate 15 is fitted with the sleeve 5, when the sleeve 5 vibrates, the stress can be effectively absorbed by the action of the elastic column.

[0037] Preferably, the end of the inner tube 13 away from the outer tube 14 is connected to the adjusting shaft 3 through a belt drive, and the belt is arranged in the side wall of the support frame 2. In this way, when the adjusting shaft 3 rotates under the action of the driving assembly 4, the sleeve 5, and the drill bit 6, the rotation of the adjusting shaft 3 causes the inner tube 13 to rotate synchronously through the action of the belt, so that the arc plate 15 always maintains a corresponding fit with the sleeve 5. Of course, the diameter of the belt on the adjusting shaft 3 is the same as the diameter on the inner tube 13.

[0038] See also Figure 1 , Figure 3 , Figure 7 , Figure 8Preferably, one end of the adjusting shaft 3 away from the driving assembly 4 rotates and passes through the side wall of the supporting frame 2, and the end of the adjusting shaft 3 away from the driving assembly 4 is provided with a tooth groove 8 in a ring array along the center of the adjusting shaft 3, and the top of the fixed frame 1 is slidably connected with a square plate 7, the square plate 7 is arranged on one side of the adjusting shaft 3, and the square plate 7 is provided with teeth that cooperate with the tooth groove 8 for transmission, and the teeth are provided with multiple groups on the square plate 7, and when the teeth are engaged with the tooth groove 8, the adjusting shaft 3 will rotate 20°, and a positioning plate 9 is fixedly provided on the side of the square plate 7 close to the adjusting shaft 3, and a positioning column 23 is elastically connected to the bottom of the positioning plate 9 through a spring, and the center of the positioning column 23 corresponds to the top center of the adjusting shaft 3, and a positioning hole that slidably cooperates with the positioning column 23 is provided on the periphery of the end of the adjusting shaft 3, and a guide rail 10 that is slidably connected and cooperates with the square plate 7 is provided on the side wall of the supporting frame 2, and a slider is provided on the side of the square plate 7 close to the supporting frame 2, and the square plate 7 slidably cooperates with the guide rail 10 through the slider.

[0039] When in use, in the initial state, the top of the square plate 7 is flush with the top of the support frame 2, at this time the teeth are not engaged with the tooth grooves 8, the slider is at the bottom end of the guide rail 10, at this time the square plate 7 is farthest away from the adjustment shaft 3, and the positioning column 23 is adapted to the positioning hole; when the driving cylinder drives the fixed frame 1 to move upward, the fixed frame 1 moves the square plate 7 upward, the fixed frame 1 moves upward so that the positioning plate 9 moves upward, the positioning plate 9 moves so that the positioning column 23 is separated from the positioning hole, at this time, the adjustment shaft 3 can be rotated, when the protrusion 201 and the slide groove 20 conflicts, the fixed frame 1 stops moving, and the support frame 2 forms a stable contact with the ground through the support legs. At this time, the slider moves to the top position of the guide rail 10, and the square plate 7 moves toward the adjustment shaft 3 through the cooperation of the slider and the guide rail 10, and the teeth move to above the tooth groove 8 closest to the relative position, that is, the teeth are not engaged with the tooth groove 8; when the fixed frame 1 moves downward to reset, the fixed frame 1 drives the square plate 7 to move downward. At this time, the downward movement of the square plate 7 will make the teeth engage with the tooth groove 8, thereby causing the adjustment shaft 3 to rotate. When the slider moves to the bottom of the guide rail 10, the teeth are separated from the tooth grooves 8, and at this time the positioning column 23 has not yet moved to the top center of the adjusting shaft 3. Then, the adjusting shaft 3 can form a reciprocating swing effect under the action of the driving assembly 4. When the slider moves to the bottom of the guide rail 10, the square plate 7 will be offset a certain distance away from the adjusting shaft 3, so that the positioning plate 9 moves with the square plate 7, and then the positioning column 23 corresponds to the top center of the adjusting shaft 3. When the positioning column 23 does not correspond to the positioning hole, the positioning column 23 The periphery of the adjustable shaft 3 is compressed in the side wall of the positioning plate 9, and the reciprocating swinging adjusting shaft 3 causes the positioning hole to rotate to a position corresponding to the positioning column 23. When the positioning column 23 corresponds to the positioning hole, the positioning column 23 elastically extends into the positioning hole to limit the relative position of the adjusting shaft 3, thereby avoiding the situation in which the adjusting shaft 3 is not limited when the device is moved, causing the driving assembly 4, sleeve 5, and drill bit 6 to shake, which may easily cause the driving assembly 4, sleeve 5, and drill bit 6 to shake significantly and cause the device to tip over.

[0040] See also Figure 7Preferably, the guide rail 10 includes a first channel 101; a second channel 104 is provided on one side of the first channel 101 close to the adjusting shaft 3, a connected lifting portion 103 is provided at the top of the first channel 101 and the second channel 104, and a connected falling portion 102 is provided at the bottom of the first channel 101 and the second channel 104; the first channel 101 and the second channel 104 are arranged in a vertical state, the falling portion 102 and the lifting portion 103 have the same shape, and both have pointed ends, the pointed end of the falling portion 102 faces downward and is located on one side of the first channel 101, and the pointed end of the lifting portion 103 faces upward and is located on one side of the second channel 104, so that in use, when the square plate 7 moves upward, the slider moves from the bottom end of the first channel 101 to the top end of the first channel 101, and when the slider is in the first channel 101, there is a gap between the square plate 7 and the adjusting shaft 3 The teeth are also separated from the adjusting shaft 3, so when the square plate 7 moves upward, the teeth are engaged with the tooth grooves 8; when the slider moves to the top of the first channel 101, it then moves to the top position corresponding to the second channel 104 under the action of the lifting part 103. At this time, the square plate 7 moves toward the adjusting shaft 3 and slides with the adjusting shaft 3, and the teeth are above the tooth grooves 8. When the square plate 7 moves downward to reset, the slider moves downward in the second channel 104. During this process, the teeth will mesh with the tooth grooves 8 and drive the adjusting shaft 3 to rotate, so that when the square plate 7 moves upward, the teeth will not interfere with the rotation adjustment function of the adjusting shaft 3. When the square plate 7 moves downward, the meshing cooperation of the teeth and the tooth grooves 8 is achieved, and the effect of automatic adaptation of the positioning hole to the positioning column 23 is achieved, thereby avoiding the problem that the positioning hole and the positioning column 23 do not correspond to each other due to uneven ground and cannot be automatically adapted.

Claims

1. A mining drilling device, comprising a fixed frame, in which a support frame is slidably arranged; characterized in that: Slide grooves are provided at the centers of both sides of the fixed frame, and protrusions slidably connected to the slide grooves are fixedly provided at the centers of both sides of the fixed frame. A driving assembly is provided at the center of the support frame, a sleeve is assembled at the bottom of the driving assembly, and a drill bit is assembled in the sleeve. Adjustment shafts are fixedly provided on both sides of the driving assembly, and one end of the adjustment shaft away from the driving assembly is rotatably connected to the support frame. A limiting assembly is provided in the side wall of the support frame, and the limiting assembly slidably cooperates with the adjustment shaft.

2. The mining drilling device according to claim 1, characterized in that: The limit assembly includes a limit rod; an L-plate is fixedly arranged at the bottom of the limit rod, the limit rod is slidably arranged in the side wall of the support frame, the L-plate is slidably arranged in the protrusion, and the bottom end of the L-plate slides out of the bottom side wall of the protrusion, and a limit hole corresponding to the limit rod and slidingly adapted is arranged on the side wall of the adjustment shaft, and a plurality of groups of the limit holes are arranged in a circular array along the center of the adjustment shaft.

3. The mining drilling device according to claim 2, characterized in that: Inner tubes are rotatably arranged on both sides of the support frame, the inner tubes are arranged below the adjustment shaft and parallel to the adjustment shaft, one end of the inner tube close to the sleeve is elastically slidably connected to the outer tube through an elastic column, and an arc plate is fixedly arranged on one end of the outer tube away from the inner tube.

4. The mining drilling device according to claim 3, characterized in that: The outer sleeve of the inner tube is provided with a fixing box, and the inner wall of the bottom end of the fixing box is provided with a partition above the inner tube, the fixing box is fixedly connected to the inner wall of the support frame, an airbag is provided in the fixing box, the bottom end of the airbag is fixed to the partition, the top of the airbag is fixedly provided with a pressure plate, the end of the pressure plate away from the support frame is fixedly provided with a circular block, a pressure rod is slidably provided in the circular block, and the end of the pressure rod away from the circular block is fixedly connected to the sleeve.

5. The mining drilling device according to claim 4, characterized in that: An airway is arranged in the inner tube, and an air hole connected with the fixing box is arranged on the side wall of the inner tube close to the fixing box. The fixing box and the airway are connected through the air hole. A through hole is arranged at the center of the partition, so that the airbag is connected with the airway through the through hole, the fixing box and the air hole.

6. The mining drilling device according to claim 3, characterized in that: One end of the inner tube away from the outer tube is drivingly connected to the adjusting shaft.

7. The mining drilling device according to claim 1, characterized in that: A resistance plate is slidably fitted on the top of the adjustment shaft, and the resistance plate is fixedly embedded in the inner wall of the support frame.

8. The mining drilling device according to claim 1, characterized in that: One end of the adjusting shaft away from the driving assembly rotates and passes through the side wall of the supporting frame, and the top of the fixed frame is slidably connected with a square plate, and the square plate is arranged on one side of the adjusting shaft. A positioning plate is fixedly arranged on the side of the square plate close to the adjusting shaft, and a positioning column is elastically connected to the bottom of the positioning plate, and a positioning hole that slides with the positioning column is arranged on the periphery of the end of the adjusting shaft.

9. The mining drilling device according to claim 8, characterized in that: The end array of the adjusting shaft away from the driving assembly is provided with a tooth groove, the square plate is provided with teeth matched with the tooth groove transmission, and the side wall of the supporting frame is provided with a guide rail matched with the square plate in sliding connection.

10. The mining drilling device according to claim 9, characterized in that: The guide rail includes a first channel; a second channel is arranged on one side of the first channel close to the adjustment shaft, a connected lifting portion is arranged at the top of the first channel and the second channel, and a connected falling portion is arranged at the bottom of the first channel and the second channel.

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