Efficient multifunctional rotary drilling rig drill bit

Abstract

The utility model discloses an efficient multifunctional rotary drilling rig drill bit, which relates to the technical field of rotary drilling rig drill bits, and comprises an internal support arranged in a rotary drilling rig drill bit main body, the rotary drilling rig drill bit main body is connected with the internal support in a welding way, and a hollow pipe is arranged in the internal support. According to the device, a telescopic rod is installed so that the telescopic rod can push a rotating support to move under the action of a hydraulic push plate, then a worker can conveniently adjust the distance between a limiting roller and a hole wall, the worker can conveniently and selectively adjust the position of the limiting roller, the device is supported by the limiting roller, and the device is prevented from inclining; the device is guaranteed to be perpendicular to the hole wall, the using requirement of the device is low, the limiting rolling wheels can slide on the hole wall, the device is guaranteed to be perpendicular to the hole wall, the device is prevented from inclining, the using effect of the device is guaranteed, when the limiting rolling wheels are used for limiting and supporting the device, torque cannot be consumed, and the device is made to be lower in requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary drilling rig drill bits, in particular to a high-efficiency and multifunctional rotary drilling rig drill bit. Background Art

[0002] Rotary drilling is a construction technology suitable for drilling holes in building foundation projects. It is widely used in municipal construction, highway bridges, high-rise buildings and other foundation construction projects. It is suitable for drilling holes in dry short spirals, wet rotary buckets and rock core drills with different drilling tools.

[0003] The existing drill bit has poor stability when entering the soft-hard interface and is prone to forming an oblique hole.

[0004] For example, the Chinese authorized patent with announcement number CN 212201905 U (a rotary drilling rig drill bit): a number of guide strips are welded on the upper outer wall of the cylinder, and the guide strips are used to prevent the drill bit from having poor stability when entering the soft-hard interface, which easily forms an inclined hole. A number of spiral strips are welded on the outer wall of the cylinder, and the spiral strips are used to reduce the friction coefficient between the borehole wall and the outer wall of the drill barrel, thereby avoiding severe wear on the outer wall of the drill barrel. A number of circular slag discharge ports are designed at the bottom of the cylinder, and the slag discharge ports are used to discharge rock powder or soil from the cylinder during the drilling process. This technical solution solves the above problems;

[0005] However, the technical solution of the utility model still has some technical problems. The rotary drilling rig drill bit uses the guide bar to drill a secondary inclined groove on the inner wall of the drilled hole, thereby avoiding the formation of an inclined hole when the rotary drilling rig drill bit enters the soft-hard interface through the contact between the inclined groove and the guide bar. However, when the rotary drilling rig drill bit uses the guide bar to drill a secondary inclined groove on the inner wall of the drilled hole, the resistance of the rotary drilling rig drill bit during rotation is increased, resulting in the rotary drilling rig drill bit requiring a larger torque when in use, and having higher usage requirements. In addition, the soil generated when the guide bar drills the inclined groove is difficult to discharge.

[0006] Therefore, a high-efficiency and multifunctional rotary drilling rig drill bit is proposed. Utility Model Content

[0007] The utility model aims to provide a high-efficiency and multifunctional rotary drilling rig drill bit to solve the problem proposed in the above-mentioned background technology that the rotary drilling rig drill bit drills a secondary inclined groove on the inner wall of the drilled hole through a guide bar, thereby avoiding the rotary drilling rig drill bit from forming an inclined hole when entering the soft-hard interface through the contact between the inclined groove and the guide bar. However, when the rotary drilling rig drill bit drills a secondary inclined groove on the inner wall of the drilled hole through the guide bar, the resistance of the rotary drilling rig drill bit during rotation is increased, resulting in the rotary drilling rig drill bit requiring a larger torque when in use, with higher usage requirements, and the soil generated when the guide bar drills the inclined groove is difficult to discharge.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency and multifunctional rotary drilling rig drill bit, comprising a rotary drilling rig drill bit body:

[0009] An internal bracket is arranged inside the drill bit body of the rotary drilling rig, the drill bit body of the rotary drilling rig is welded to the internal bracket, a hollow tube is installed inside the internal bracket, a telescopic rod is installed inside the internal bracket, the telescopic rod is slidably connected to the internal bracket, the hollow tube and the drill bit body of the rotary drilling rig through a slot, a rotating bracket is installed at one end of the telescopic rod, the rotating bracket is rotatably connected to the telescopic rod, a limiting roller is installed inside the rotating bracket, and the limiting roller is rotatably connected to the rotating bracket;

[0010] An upper connecting bracket is arranged at the upper end of the rotary drilling rig drill bit body, the rotary drilling rig drill bit body is welded to the upper connecting bracket, a control bracket is installed on the upper end of the upper connecting bracket, the control bracket is welded to the upper connecting bracket, an adjusting screw is installed inside the control bracket, the adjusting screw is connected to the control bracket by threads, a hydraulic push plate is rotatably installed on the lower end of the adjusting screw, and a limited top screw is installed on the upper end of the control bracket.

[0011] Preferably, a convenient handle is installed on the upper end of the adjusting screw rod, and the convenient handle is fixedly connected to the adjusting screw rod.

[0012] Preferably, a mounting plate is installed on the upper end of the upper connecting bracket, and the mounting plate is welded to the upper connecting bracket.

[0013] Preferably, a connecting cross plate is installed on the upper end of the mounting plate, and the connecting cross plate is welded to the mounting plate.

[0014] Preferably, a mounting and fixing plate is installed on the upper end of the connecting cross plate, and the mounting and fixing plate is welded to the connecting cross plate.

[0015] Preferably, a drill tooth is installed at the lower end of the rotary drilling rig drill bit body, and the drill tooth is fixedly connected to the rotary drilling rig drill bit body.

[0016] Preferably, a guide boss is provided at the upper end of the internal bracket, and the guide boss and the internal bracket are configured as an integrally formed structure.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model installs a telescopic rod so that the rotating bracket can be pushed to move under the action of the hydraulic push plate, so that the staff can adjust the distance between the limit roller and the hole wall, and the staff can selectively adjust the position of the limit roller so that the limit roller supports the device to prevent the device from being skewed, and ensure that the device is perpendicular to the hole wall. The use requirements of the device are relatively low. The installation of the limit roller can make it slide on the hole wall to ensure that the device is perpendicular to the hole wall, avoid skew of the device, and ensure the use effect of the device. When the limit roller supports the device in a limited position, it will not consume torque, so that the device is more demanding;

[0019] 2. The utility model can press down the hydraulic push plate by installing an adjusting screw rod, so that the hydraulic push plate pushes the hydraulic oil to move, and then the hydraulic oil pushes the telescopic rod to move, so that the limiting roller is in close contact with the hole wall, reducing the difficulty of using the device and making it more convenient to install. The diversion boss can facilitate the better discharge of mud from the device and prevent mud from being blocked inside the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the internal three-dimensional structure of a drill bit of a high-efficiency and multifunctional rotary drilling rig of the utility model;

[0021] Figure 2 This is a three-dimensional upward view of a drill bit of a high-efficiency and multifunctional rotary drilling rig of the utility model;

[0022] Figure 3 It is a three-dimensional top view of a drill bit of a high-efficiency and multifunctional rotary drilling rig of the utility model;

[0023] Figure 4 This is a connection diagram of the telescopic rod and the internal bracket of the utility model.

[0024] In the figure: 1. The drill bit body of the rotary drilling rig; 2. The telescopic rod; 3. The rotating bracket; 4. The limit roller; 5. The internal bracket; 6. The hollow tube; 7. The upper connecting bracket; 8. The mounting plate; 9. The control bracket; 10. The limit top screw; 11. The adjusting screw rod; 12. The hydraulic push plate; 13. The convenient handle; 14. The connecting cross plate; 15. The mounting fixing plate; 16. The drill teeth; 17. The guide boss. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1-4 The utility model provides an embodiment: a high-efficiency multifunctional rotary drilling rig drill bit, comprising a rotary drilling rig drill bit body 1:

[0027] The internal bracket 5 is arranged inside the main body 1 of the rotary drilling rig drill bit. The main body 1 of the rotary drilling rig drill bit is welded to the internal bracket 5. A hollow tube 6 is installed inside the internal bracket 5. A telescopic rod 2 is installed inside the internal bracket 5. The telescopic rod 2 is slidably connected with the internal bracket 5, the hollow tube 6 and the main body 1 of the rotary drilling rig drill bit through a card slot. The telescopic rod 2 is installed so that it can push the rotating bracket 3 to move under the action of the hydraulic push plate 12, so as to facilitate the staff to adjust the distance between the limit roller 4 and the hole wall, and facilitate the staff to selectively adjust the position of the limit roller 4 so that the limit roller 4 The device is supported to prevent the device from being skewed, and the device is ensured to be perpendicular to the hole wall, and the use requirements of the device are relatively low. A rotating bracket 3 is installed at one end of the telescopic rod 2, and the rotating bracket 3 is rotatably connected to the telescopic rod 2. A limiting roller 4 is installed inside the rotating bracket 3. The installation of the limiting roller 4 can make it slide on the hole wall to ensure that the device is perpendicular to the hole wall, avoid the device from being skewed, and ensure the use effect of the device. The limiting roller 4 does not consume torque when limiting the device, making the device more demanding. The limiting roller 4 is rotatably connected to the rotating bracket 3, and hydraulic oil is arranged inside the hollow tube 6;

[0028] An upper connecting bracket 7 is arranged at the upper end of the rotary drilling rig drill bit body 1. The rotary drilling rig drill bit body 1 is welded to the upper connecting bracket 7. A control bracket 9 is installed on the upper end of the upper connecting bracket 7. The control bracket 9 is welded to the upper connecting bracket 7. An adjusting screw 11 is installed inside the control bracket 9. The installation of the adjusting screw 11 can press down the hydraulic push plate 12, so that the hydraulic push plate 12 pushes the hydraulic oil to move, and then the hydraulic oil pushes the telescopic rod 2 to move, so that the limiting roller 4 is in close contact with the hole wall, reducing the difficulty of using the device and making the device more convenient. The adjusting screw 11 is connected to the control bracket 9 by threads, and the lower end of the adjusting screw 11 is rotatably installed with a hydraulic push plate 12, and the upper end of the control bracket 9 is installed with a limiting top screw 10.

[0029] See also Figure 1 , Figure 2 , Figure 3 and Figure 4A convenient handle 13 is installed at the upper end of the adjusting screw rod 11, and the convenient handle 13 is fixedly connected to the adjusting screw rod 11. A mounting plate 8 is installed at the upper end of the upper connecting bracket 7, and the mounting plate 8 is welded to the upper connecting bracket 7. A connecting cross plate 14 is installed at the upper end of the mounting plate 8, and the connecting cross plate 14 is welded to the mounting plate 8. A mounting fixing plate 15 is installed at the upper end of the connecting cross plate 14, and the mounting fixing plate 15 is welded to the connecting cross plate 14. A drill tooth 16 is installed at the lower end of the drill bit body 1 of the rotary drilling rig, and the drill tooth 16 is fixedly connected to the drill bit body 1 of the rotary drilling rig. A guide boss 17 is provided at the upper end of the internal bracket 5. The provision of the guide boss 17 can facilitate better discharge of soil from the device and prevent soil from being blocked inside the device. The guide boss 17 and the internal bracket 5 are arranged as an integrally formed structure.

[0030] Working principle: when in use, the staff installs the device on the lower end of the rotating shaft of the rotary drilling rig, and then uses the device to drill. Before drilling, the staff twists the adjusting screw 11 to make the adjusting screw 11 push the hydraulic push plate 12 to move downward, and then the hydraulic push plate 12 squeezes the hydraulic oil, so that the hydraulic oil pushes the telescopic rod 2 to move, thereby making the limiting roller 4 extend a part of the device, so that the outside of the limiting roller 4 slightly exceeds the outside of the drill head body 1 of the rotary drilling rig, and then use the limiting top screw 10 to limit the adjusting screw 11, and then the rotary drilling rig controls the device to drill the ground. When drilling, the limiting roller 4 moves with the rotation of the device, and the limiting roller 4 gradually contacts the hole wall to support the device to prevent the device from tilting during drilling. The telescopic rod 2 is installed in the device so that it can push the rotating bracket 3 to move under the action of the hydraulic push plate 12, and then It is convenient for the staff to adjust the distance between the limit roller 4 and the hole wall, and it is convenient for the staff to selectively adjust the position of the limit roller 4, so that the limit roller 4 supports the device to prevent the device from being skewed, and ensure that the device is perpendicular to the hole wall, and the use requirements of the device are relatively low. Installing the limit roller 4 can make it slide on the hole wall, ensure that the device is perpendicular to the hole wall, avoid skewing the device, and ensure the use effect of the device. The limit roller 4 will not consume torque when limiting the device, making the device more demanding. Installing the adjusting screw 11 can press down the hydraulic push plate 12, so that the hydraulic push plate 12 pushes the hydraulic oil to move, and then the hydraulic oil pushes the telescopic rod 2 to move, so that the limit roller 4 is in close contact with the hole wall, reducing the difficulty of using the device and making the installation more convenient. The provision of the guide boss 17 can facilitate the better discharge of soil from the device and prevent soil from being blocked inside the device.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A high-efficiency and multifunctional rotary drilling rig drill bit, comprising a rotary drilling rig drill bit body (1), characterized in that: An internal bracket (5) is arranged inside the rotary drilling rig drill bit body (1), the rotary drilling rig drill bit body (1) is welded to the internal bracket (5), a hollow tube (6) is installed inside the internal bracket (5), a telescopic rod (2) is installed inside the internal bracket (5), the telescopic rod (2) and the internal bracket (5), the hollow tube (6) and the rotary drilling rig drill bit body (1) are all slidably connected through a slot, a rotating bracket (3) is installed at one end of the telescopic rod (2), the rotating bracket (3) is rotatably connected to the telescopic rod (2), a limiting roller (4) is installed inside the rotating bracket (3), and the limiting roller (4) is rotatably connected to the rotating bracket (3); An upper connecting bracket (7) is arranged at the upper end of the rotary drilling rig drill bit body (1); the rotary drilling rig drill bit body (1) is welded to the upper connecting bracket (7); a control bracket (9) is installed at the upper end of the upper connecting bracket (7); the control bracket (9) is welded to the upper connecting bracket (7); an adjusting screw (11) is installed inside the control bracket (9); the adjusting screw (11) is connected to the control bracket (9) by threads; a hydraulic push plate (12) is rotatably installed at the lower end of the adjusting screw (11); and a limit screw (10) is installed at the upper end of the control bracket (9).

2. The high-efficiency and multifunctional rotary drilling rig drill bit according to claim 1, characterized in that: A convenient handle (13) is installed at the upper end of the adjusting screw rod (11), and the convenient handle (13) is fixedly connected to the adjusting screw rod (11).

3. The high-efficiency and multifunctional rotary drilling rig drill bit according to claim 1, characterized in that: A mounting plate (8) is mounted on the upper end of the upper connecting bracket (7), and the mounting plate (8) is welded to the upper connecting bracket (7).

4. The high-efficiency and multifunctional rotary drilling rig drill bit according to claim 3, characterized in that: A connecting cross plate (14) is installed at the upper end of the mounting plate (8), and the connecting cross plate (14) is welded to the mounting plate (8).

5. The high-efficiency and multifunctional rotary drilling rig drill bit according to claim 4, characterized in that: A mounting and fixing plate (15) is installed on the upper end of the connecting cross plate (14), and the mounting and fixing plate (15) is welded to the connecting cross plate (14).

6. The high-efficiency and multifunctional rotary drilling rig drill bit according to claim 1, characterized in that: A drill tooth (16) is installed at the lower end of the rotary drilling rig drill bit body (1), and the drill tooth (16) is fixedly connected to the rotary drilling rig drill bit body (1).

7. The high-efficiency and multifunctional rotary drilling rig drill bit according to claim 1, characterized in that: A flow guide boss (17) is provided at the upper end of the internal bracket (5), and the flow guide boss (17) and the internal bracket (5) are arranged as an integrally formed structure.

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