Drilling rig for underground coal mine geological survey water prevention and control

Abstract

The drilling rig comprises a vehicle body, a walking mechanism, a supporting mechanism and a drill bit mechanism, the vehicle body is provided with a mounting platform, the walking mechanism is connected with the bottom of the vehicle body to drive the vehicle body to move, and the supporting mechanism is connected with the vehicle body to support the vehicle body; the drill bit mechanism is located on the installation platform and comprises a drill bit, a support, a connecting piece and a driving piece, the driving piece is located at the first end of the support, the drill bit is in transmission connection with the driving piece through the connecting piece, the second end of the support is slidably connected with the installation platform, and a lead screw is arranged on the support and is in transmission connection with the driving piece. The lead screw is in transmission connection with the connecting piece to guarantee stable feeding of the drill bit. The drilling rig for underground coal mine geological survey water prevention and control has the advantages of being stable in feeding and convenient to move.

Description

Technical Field

[0001] The invention relates to the technical field of ground surveying and water prevention and control, and in particular to a drilling device for ground surveying and water prevention and control in underground coal mines. Background Art

[0002] Coal mines are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, it is generally chosen to dig tunnels underground to mine coal. This is an underground coal mine. For underground coal mines, geological exploration and the collection of various parameters and hydrogeological materials are required. The relevant technical method is to drill holes in the mine through drilling equipment, and then test the rocks in the boreholes. It is inconvenient to replace the drill bit of the drilling equipment, which reduces efficiency. It is inconvenient to move it by manpower, which increases labor intensity. The feed force is provided by the cylinder separately, and the feed is not stable, which is easy to damage the drill bit. The motor is easy to cause gas explosion, which poses a safety hazard. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention provides a drilling device for underground water prevention and control in underground coal mines, which has the advantages of stable feeding and convenient movement.

[0005] According to the embodiment of the present invention, the drilling device for underground coal mine ground surveying and water prevention and control includes a vehicle body, a traveling mechanism, a supporting mechanism and a drill mechanism, the vehicle body has a mounting platform, the traveling mechanism is connected to the bottom of the vehicle body to drive the vehicle body to move, the supporting mechanism is connected to the vehicle body to support the vehicle body, the drill mechanism is located on the mounting platform, the drill mechanism includes a drill bit, a bracket, a connecting member and a driving member, the driving member is located at a first end of the bracket, the drill bit is transmission-connected to the driving member through the connecting member, the second end of the bracket is slidably connected to the mounting platform, a first screw is arranged on the bracket, the first screw is transmission-connected to the driving member, and the first screw is transmission-connected to the connecting member to ensure stable feeding of the drill bit.

[0006] The drilling device for underground coal mine water control according to the embodiment of the present invention has the advantages of stable feeding and convenient movement.

[0007] In some embodiments, the driving member includes a first motor, a driving shaft and a reducer, the first motor is located at the first end of the bracket, the output shaft of the first motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the driving shaft.

[0008] In some embodiments, the connecting member includes a driven shaft, a connecting block and a chuck. The driven shaft is transmission-connected to the driving member. The connecting block is sleeved on the outside of the driven shaft and can slide relative to the driven shaft. The connecting block is threadedly connected to the lead screw. The chuck is connected to one end of the driven shaft away from the driving member, and the chuck is used to clamp the drill bit.

[0009] In some embodiments, the connecting member further includes a first gear and a second gear, the first gear is sleeved on the driving shaft, the second gear is sleeved on the lead screw, the first gear is meshed with the second gear, and the axial direction of the driving shaft is parallel to the axial direction of the lead screw.

[0010] In some embodiments, the lead screw is a trapezoidal lead screw, the first nut is connected to the connecting block, and the first nut is sleeved on the trapezoidal lead screw and threadedly connected to the trapezoidal lead screw.

[0011] In some embodiments, the walking mechanism includes wheels, a drive shaft and a second motor, the second motor is located at the bottom of the vehicle body, the second motor is drivingly connected to the drive shaft, the wheels are connected to both ends of the drive shaft, and the wheels are connected to the bottom of the vehicle body.

[0012] In some embodiments, the walking mechanism further includes a shock absorber, the shock absorber is located at the bottom of the vehicle body, and the drive shaft passes through the shock absorber and is connected to the wheel.

[0013] In some embodiments, a guide rail is provided on the mounting platform, the bracket slides along the guide rail, the first end of the double-acting cylinder is connected to the bracket, and the other end of the double-acting cylinder is connected to the vehicle body, the double-acting cylinder is used to push the bracket to move along the extension direction of the guide rail, and a handle is provided on one side of the vehicle body, and the extension direction of the handle is parallel to the extension direction of the guide rail.

[0014] In some embodiments, the vehicle body also includes a first reversing valve, a second reversing valve, a second reversing valve, a third reversing valve, a second pressure regulating valve and a third pressure regulating valve, the first reversing valve is located on the vehicle body and connected to the double-acting cylinder, the second reversing valve and the second pressure regulating valve are located on the vehicle body and connected to the first motor, the third reversing valve and the third pressure regulating valve are located on the handle and connected to the second motor.

[0015] In some embodiments, the support mechanism includes a support screw, a support nut and a support pad, the support nut is connected to the outer side wall of the vehicle body, the support screw passes through the support nut and is threadedly connected to the support nut, and the support pad is located at the end of the support screw.

[0016] The application has the following advantages: the cooperation between the driving part and the mounting platform makes it more convenient to replace the drill bit and improves the efficiency; the use of compressed air drive reduces the safety hazard of explosion and has the ability of overload protection to protect the equipment; the spiral feed is smoother and the drill bit is not easily damaged; the burden on the equipment is small; and the setting of shock absorbers improves the passability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an axonometric diagram of a drilling device for underground coal mine water prevention and control according to an embodiment of the present invention.

[0018] Figure 2 The present invention is a cross-sectional schematic diagram of a drill bit mechanism of a drilling device for underground coal mine water prevention and control according to an embodiment of the present invention.

[0019] Figure 3 It is a structural schematic diagram of a vehicle body of a drilling device for underground coal mine water prevention and control according to an embodiment of the present invention.

[0020] Figure 4 It is a schematic top view of a drilling device for underground coal mine water prevention and control according to an embodiment of the present invention.

[0021] Figure 5 yes Figure 4 AA plane section view.

[0022] Figure 6 yes Figure 3 A partial enlarged view of point A.

[0023] Figure 7 yes Figure 5 A partial enlarged view of point B

[0024] Reference numerals: 1, vehicle body; 11, mounting platform; 111, guide rail; 12, double-acting cylinder; 13, handle;

[0025] 2. Traveling mechanism; 21. Wheel; 22. Drive shaft; 23. Second motor; 24. Shock absorber;

[0026] 3. Support mechanism; 31. Support screw; 32. Support nut; 33. Support pad;

[0027] 4. Drill mechanism; 41. Drill; 42. Bracket; 43. First lead screw; 431. First nut; 44. First motor; 45. Driving shaft; 451. First gear; 452. Second gear; 46. Speed ​​reducer; 47. Driven shaft; 48. Connecting block; 49. Chuck;

[0028] 5. First reversing valve; 6. Second reversing valve; 7. Third reversing valve; 61. Second pressure regulating valve; 71. Third pressure regulating valve. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] According to the embodiment of the present invention, the drilling device for underground coal mine ground surveying and water prevention and control includes a vehicle body 1, a traveling mechanism 2, a supporting mechanism 3 and a drill mechanism 4. The vehicle body 1 has a mounting platform 11. The traveling mechanism 2 is connected to the bottom of the vehicle body 1 to drive the vehicle body 1 to move. The supporting mechanism 3 is connected to the vehicle body 1 to support the vehicle body 1. The drill mechanism 4 is located on the mounting platform 11. The drill mechanism 4 includes a drill bit 41, a bracket 42, a connecting member and a driving member. The driving member is located at a first end of the bracket 42. The drill bit 41 is connected to the driving member through a connecting member. The second end of the bracket 42 is slidably connected to the mounting platform 11. A first lead screw 43 is arranged on the bracket 42. The first lead screw 43 is connected to the driving member through a connecting member. The first lead screw 43 is connected to the connecting member through a connecting member to ensure stable feeding of the drill bit 41. The walking mechanism 2 drives the vehicle body 1 to move so as to facilitate the movement of the drill bit 41. The supporting mechanism 3 is used to improve the stability of the vehicle body 1 when the drill bit 41 is working. The drill bit mechanism 4 is on the mounting platform 11 of the vehicle body 1. The bracket 42 slides along the mounting platform 11 to facilitate the replacement of the drill bit 41 and improve efficiency. The combination of the first screw 43, the connecting piece and the bracket 42 can ensure the smooth feeding of the drill bit 41 and avoid damage to the drill bit 41.

[0031] The drilling device for underground coal mine water control according to the embodiment of the present invention has the advantages of stable feeding and convenient movement.

[0032] In some embodiments, the driving member includes a first motor 44, a driving shaft 45 and a reducer 46. The first motor 44 is located at the first end of the bracket 42, the output shaft of the first motor 44 is connected to the input shaft of the reducer 46, and the output shaft of the reducer 46 is connected to the driving shaft 45.

[0033] Specifically, the first motor 44 drives the driving shaft 45 to rotate, and the reducer 46 can adjust the torque and increase the stability of the transmission to protect the first motor 44 .

[0034] In some embodiments, the connecting member includes a driven shaft 47, a connecting block 48 and a chuck 49. The driven shaft 47 is transmission-connected to the driving member. The connecting block 48 is sleeved on the outside of the driven shaft 47 and can slide relative to the driven shaft 47. The connecting block 48 is threadedly connected to the first screw 43. The chuck 49 is connected to one end of the driven shaft 47 away from the driving member. The chuck 49 is used to clamp the drill bit 41.

[0035] Specifically, the driven shaft 47 is driven to rotate by the driving shaft 45, the driving shaft 45 and the driven shaft 47 are coaxial, the connecting block 48 is sleeved on the driven shaft 47 and can slide relative to the driven shaft 47, the first lead screw 43 and the connecting block 48 are threadedly connected so that rotating the lead screw can drive the connecting block 48 to move relative to the first lead screw 43, the chuck 49 is a three-jaw chuck 49, the three-jaw chuck 49 clamps the drill bit 41, the driven shaft 47 rotates to drive the chuck 49 and then drives the drill bit 41 to rotate, the first lead screw 43 on the bracket 42 constrains the position of the connecting block 48 and then the connecting block 48 can constrain the driven shaft 47 from shaking, ensuring that the driven shaft 47 will not shake during the drilling process of the drill bit 41, making the feeding more stable.

[0036] In some embodiments, the connecting member also includes a first gear 451 and a second gear 452. The first gear 451 is sleeved on the driving shaft 45, and the second gear 452 is sleeved on the screw. The first gear 451 is meshed with the second gear 452, and the axial direction of the driving shaft 45 is parallel to the axial direction of the screw.

[0037] Specifically, the first gear 451 is fixed on the driving shaft 45 and rotates with the driving shaft 45, the second gear 452 is mounted on the lead screw and rotates with the lead screw, the driving shaft 45 drives the first gear 451 to rotate, the first gear 451 drives the second gear 452 and the lead screw to rotate, the rotation of the lead screw can drive the connecting block 48 to move relative to the lead screw, and the driven shaft 47 passing through the connecting block 48 is constrained and blocked by the connecting block 48, thereby preventing the driven shaft 47 from shaking.

[0038] In some embodiments, the lead screw is a trapezoidal lead screw, the first nut 431 is connected to the connecting block 48, and the first nut 431 is sleeved on the trapezoidal lead screw and is threadedly connected to the trapezoidal lead screw.

[0039] Specifically, the first lead screw 43 adopts a trapezoidal lead screw to obtain higher positioning accuracy, provide smooth linear motion and realize precise feeding. When the trapezoidal lead screw stops rotating, it can achieve self-locking to a certain extent to maintain the position of the connecting block 48. The first nut 431 is fixed to the connecting block 48, and the first nut 431 is threadedly connected to the trapezoidal lead screw. As the trapezoidal lead screw rotates, the first nut 431 moves relative to the trapezoidal lead screw, and the first nut 431 drives the connecting block 48 to move relative to the trapezoidal lead screw and the driven shaft 47.

[0040] In some embodiments, the walking mechanism 2 includes wheels 21, a drive shaft 22 and a second motor 23. The second motor 23 is located at the bottom of the vehicle body 1, and the second motor 23 is transmission-connected to the drive shaft 22. The wheels 21 are connected to both ends of the drive shaft 22, and the wheels 21 are connected to the bottom of the vehicle body 1.

[0041] Specifically, the wheels 21 of the walking mechanism 2 are arranged on both sides of the bottom of the vehicle body 1, and the driving shaft 22 passes through the two wheels 21. When the driving shaft 22 rotates, the two wheels 21 are driven to rotate accordingly. The second motor 23 and the driving shaft 22 can be connected by a belt transmission, and the output end of the second motor 23 drives the belt and then drives the driving shaft 22 to rotate. The second motor 23 controls the rotation speed and rotation direction of the wheels 21.

[0042] In some embodiments, the traveling mechanism 2 further includes a shock absorber 24 , which is located at the bottom of the vehicle body 1 , and the driving shaft 22 passes through the shock absorber 24 and is connected to the wheel 21 .

[0043] Specifically, the shock absorber 24 can protect the drive shaft 22, reduce the vibration transmission of the drive shaft 22 and the wheel 21 to the vehicle body 1, and thus extend the service life of the vehicle body 1. The shock absorber 24 can also reduce the swaying and jumping of the vehicle during driving to improve the handling of the vehicle body 1.

[0044] In some embodiments, a guide rail 111 is set on the mounting platform 11, the bracket 42 slides along the guide rail 111, the first end of the double-acting cylinder 12 is connected to the bracket 42, and the other end of the double-acting cylinder 12 is connected to the vehicle body 1, and the double-acting cylinder 12 is used to push the bracket 42 to move along the extension direction of the guide rail 111. A handle 13 is set on one side of the vehicle body 1, and the extension direction of the handle 13 is parallel to the extension direction of the guide rail 111.

[0045] Specifically, a hole for the drill bit 41 to pass through is arranged in the center of the mounting platform 11, and guide rails 111 are arranged on both sides of the hole. The bracket 42 slides on the guide rails 111 to change the position of the drill bit 41 relative to the vehicle body 1. When the drill bit 41 needs to be replaced, the drill bit 41 retracts into the bracket 42, and the bracket 42 moves relative to the mounting platform 11, which facilitates the removal of the drill bit 41 and improves the replacement efficiency. The bracket 42 moves toward the handle 13 of the vehicle body 1 on the mounting platform 11 to maintain the balance of the vehicle body 1. The user relies on the cooperation of the pressing handle 13 and the support mechanism 3 to keep the vehicle body 1 balanced during the movement of the bracket 42 relative to the vehicle body 1. The double-acting cylinder 12 can realize bidirectional movement. The double-acting cylinder 12 connects the bracket 42 and the vehicle body 1 and pushes the bracket 42 to move relative to the vehicle body 1, realizing the automatic movement of the bracket 42, reducing manual participation, and being more labor-saving and safe.

[0046] In some embodiments, the vehicle body 1 also includes a first reversing valve 5, a second reversing valve 6, a second reversing valve 6, a third reversing valve 7, a second pressure regulating valve 61 and a third pressure regulating valve 71. The first reversing valve 5 is located on the vehicle body 1 and is connected to the double-acting cylinder 12. The second reversing valve 6 and the second pressure regulating valve 61 are located on the vehicle body 1 and are connected to the first motor 44. The third reversing valve 7 and the third pressure regulating valve 71 are located on the handle 13 and are connected to the second motor 23.

[0047] Specifically, the first reversing valve 5 controls the double-acting cylinder 12 to change the working direction of the cylinder, the second reversing valve 6 is connected to the second motor 23, the second motor 23 is driven by compressed air, and the second pressure regulating valve 61 controls the flow of compressed air entering the second motor 23 to ensure the stability of the output pressure. The second reversing valve 6 and the second pressure regulating valve 61 cooperate to make the feeding process safer and smoother. The third reversing valve 7 and the third pressure regulating valve 71 are arranged on the handle 13 to facilitate the staff to adjust the moving speed of the wheel 21 when pushing the vehicle body 1 to move, reduce labor intensity and improve passability. The staff can continuously push and guide the vehicle body 1 to move without leaning over or pausing to change the speed of the vehicle body 1.

[0048] In some embodiments, the support mechanism 3 includes a support screw 31, a support nut 32 and a support pad 33. The support nut 32 is connected to the outer wall of the vehicle body 1, the support screw 31 passes through the support nut 32 and is threadedly connected to the support nut 32, and the support pad 33 is located at the end of the support screw 31.

[0049] Specifically, the support nut 32 is fixed to the side of the vehicle body 1 where the wheel 21 is installed, and the support screw 31 passes through the support nut 32. Rotating the support screw 31 can change the distance between the support screw 31 and the ground. The end of the support screw 31 contacts the ground, so a support pad 33 is arranged at the end of the support screw 31 to protect the support screw 31. Patterns can be set on the support pad 33 to increase friction and ensure the support effect of the support screw 31 on the vehicle body 1. There can be two support nuts 32, and the support screw 31 passes through the two support nuts 32 in sequence, which can ensure that the support screw 31 is perpendicular to the ground and evenly received, and prevent the support screw 31 from tilting itself and damaging the internal thread of the support nut 32.

[0050] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0054] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0055] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A drilling device for underground coal mine water control, characterized in that: include: a vehicle body having a mounting platform; A walking mechanism, the walking mechanism is connected to the bottom of the vehicle body to drive the vehicle body to move; A supporting mechanism, the supporting mechanism is connected to the vehicle body to support the vehicle body; A drill mechanism, wherein the drill mechanism is located on the mounting platform, and the drill mechanism comprises a drill bit, a bracket, a connecting piece and a driving piece, wherein the driving piece is located at a first end of the bracket, the drill bit is drivingly connected to the driving piece via the connecting piece, the second end of the bracket is slidably connected to the mounting platform, a first lead screw is arranged on the bracket, the first lead screw is drivingly connected to the driving piece, and the lead screw is drivingly connected to the connecting piece to ensure stable feeding of the drill bit.

2. The drilling device for underground coal mine water control according to claim 1, characterized in that: The driving member includes a first motor, a driving shaft and a reducer. The first motor is located at the first end of the bracket. The output shaft of the first motor is connected to the input shaft of the reducer. The output shaft of the reducer is connected to the driving shaft.

3. The drilling device for underground coal mine water control according to claim 2 is characterized in that: The connecting member includes a driven shaft, a connecting block and a chuck. The driven shaft is connected to the driving member in a transmission manner. The connecting block is sleeved on the outside of the driven shaft and can slide relative to the driven shaft. The connecting block is threadedly connected to the lead screw. The chuck is connected to one end of the driven shaft away from the driving member. The chuck is used to clamp the drill bit.

4. The drilling device for underground coal mine water control according to claim 2, characterized in that: It also includes a first gear and a second gear, the first gear is sleeved on the driving shaft, the second gear is sleeved on the lead screw, the first gear is meshed with the second gear, and the axial direction of the driving shaft is parallel to the axial direction of the lead screw.

5. The drilling device for underground coal mine water control according to claim 3, characterized in that: The lead screw is a trapezoidal lead screw, the first nut is connected to the connecting block, and the first nut is sleeved on the trapezoidal lead screw and is threadedly connected to the trapezoidal lead screw.

6. The drilling device for underground coal mine water control according to claim 2, characterized in that: The walking mechanism includes wheels, a drive shaft and a second motor, wherein the second motor is located at the bottom of the vehicle body, the second motor is drivingly connected to the drive shaft, the wheels are connected to both ends of the drive shaft, and the wheels are connected to the bottom of the vehicle body.

7. The drilling device for underground coal mine water control according to claim 6, characterized in that: The vehicle also includes a shock absorber, which is located at the bottom of the vehicle body, and the drive shaft passes through the shock absorber and is connected to the wheel.

8. The drilling device for underground coal mine water control according to claim 6, characterized in that: A guide rail is arranged on the mounting platform, the bracket slides along the guide rail, the first end of the double-acting cylinder is connected to the bracket, and the other end of the double-acting cylinder is connected to the vehicle body, the double-acting cylinder is used to push the bracket to move along the extension direction of the guide rail, and a handle is arranged on one side of the vehicle body, and the extension direction of the handle is parallel to the extension direction of the guide rail.

9. The drilling device for underground coal mine water control according to claim 8, characterized in that: It also includes a first reversing valve, a second reversing valve, a third reversing valve, a second pressure regulating valve and a third pressure regulating valve. The first reversing valve is located on the vehicle body and connected to the double-acting cylinder. The second reversing valve and the second pressure regulating valve are located on the vehicle body and connected to the first motor. The third reversing valve and the third pressure regulating valve are located on the handle and connected to the second motor.

10. The drilling device for underground coal mine water control according to claim 1, characterized in that: The support mechanism includes a support screw, a support nut and a support pad, wherein the support nut is connected to the outer side wall of the vehicle body, the support screw passes through the support nut and is threadedly connected to the support nut, and the support pad is located at the end of the support screw.

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