Ball tooth drill bit assembly

Abstract

The utility model belongs to the technical field of drill bit components, particularly relates to a button drill bit component, and provides the following scheme aiming at the defects that corresponding buffer protection is lacked in the actual use process of the existing technical scheme, so that alloy teeth on a drill bit are easy to break in the actual use process when encountering harder rocks. The drill bit comprises a drill bit body, a plurality of chip grooves are formed in the drill bit body at equal intervals, a plurality of installation grooves are formed in the top of the drill bit body at equal intervals, alloy teeth are connected into the installation grooves in a sliding mode, and the tops of the alloy teeth extend to the position above the drill bit body. According to the drill bit, the stable and good protection effect can be provided for the drill bit body, so that the damage probability of the drill bit body can be greatly reduced in the actual use process, and the drill bit has good practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bit assemblies, in particular to a ball tooth drill bit assembly. Background Art

[0002] The engineering technology of drilling holes with specific requirements in rocks. In mining engineering, holes are often used to load explosives for blasting. Sometimes large-diameter holes are formed by rock drilling, and they are directly used as shafts without blasting. Holes are also used for geological exploration, transporting materials, installing anchors, pipelines, cables and other facilities, or as oil and gas wells in oil production projects. Therefore, rock drilling is also widely used in rock crushing projects related to geology, petroleum, hydropower, transportation, etc.

[0003] According to the announcement number CN213478225U, a ball-tooth drill bit is disclosed, including a drill bit shell and an alloy tooth, a plurality of drill bit teeth are arranged on one side of the drill bit shell, a powder discharge groove is arranged between each of the drill bit teeth, wherein one or more of the powder discharge grooves are provided with a first water outlet, a plurality of tooth holes are arranged on the top of each drill bit tooth and one side of the drill bit shell, and alloy teeth are installed on the tooth holes, a water inlet channel is arranged inside the drill bit shell, and the water inlet channel is connected with the first water outlet, a guide groove is arranged along the end surface direction of one side of the drill bit shell, and one end of the guide groove is located on the powder discharge groove, a second water outlet is arranged inside the drill bit shell, and the second water outlet is connected with the other end of the guide groove, and the second water outlet is connected with the water inlet channel. The utility model device has a simple structure, reduces the contact between the impact surface and the rock, and at the same time improves the water flow and the cooling of the alloy, thereby extending the service life of the drill bit.

[0004] The above technical solution lacks corresponding buffer protection during actual use, so that in actual use, the alloy teeth on the drill bit are prone to tooth breakage when encountering harder rocks, causing damage to the drill bit. Therefore, a ball tooth drill bit assembly is proposed in the present technical solution to solve the above-mentioned problem. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the existing technical solutions lack corresponding buffer protection during actual use, so that in actual use, the alloy teeth on the drill bit are prone to tooth breakage when encountering harder rocks, and a ball tooth drill bit assembly is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A ball-tooth drill bit assembly comprises a drill bit body, a plurality of chip removal grooves are formed on the drill bit body at equal intervals, a plurality of mounting grooves are formed on the top of the drill bit body at equal intervals, and alloy teeth are slidably connected in the mounting grooves, and the tops of the alloy teeth extend to the top of the drill bit body. The drill bit assembly also comprises:

[0008] A connecting mechanism, the connecting mechanism is installed at the bottom of the drill bit body;

[0009] A buffer mechanism, the buffer mechanism is connected to the connecting mechanism, and the buffer mechanism is used to elastically protect the drill bit body;

[0010] The mounting mechanism is connected to the buffer mechanism, and the mounting mechanism is used to be connected to an external pneumatic machine.

[0011] In a possible design, the connection mechanism includes a plurality of connection columns fixedly installed at equal intervals on the bottom of the drill bit body, a same connection plate is fixedly installed at the bottom ends of the plurality of connection columns, and the plurality of connection columns are all connected to the buffer mechanism.

[0012] In one possible design, the connecting mechanism includes a support plate slidably connected to a plurality of connecting columns, the connecting column is sleeved with a compression spring located above the support plate, and the top and bottom ends of the compression spring are respectively fixedly connected to the bottom of the drill bit body and the bottom of the support plate, a support column is fixedly installed at the top center position of the support plate, a buffer groove is provided at the bottom of the drill bit body, the top of the support column extends into the buffer groove and a piston plate is fixedly installed, the piston plate is slidably connected to the inner wall of the buffer groove, a rubber ring is fixedly installed on the top of the piston plate, the rubber ring is sealingly and slidably connected to the inner wall of the buffer groove, a plurality of ventilation holes are evenly spaced on the piston plate, and the top of the mounting mechanism passes through the connecting plate and is connected to the bottom of the support plate.

[0013] In a possible design, a plurality of trimming teeth are fixedly installed at equal intervals around the outer circumference of the drill bit body.

[0014] In a possible design, a buffer rubber column is fixedly mounted on the bottom inner wall of the mounting groove, and the top end of the buffer rubber column is fixedly connected to the bottom of the alloy tooth.

[0015] In one possible design, the mounting mechanism includes a mounting column fixedly mounted on the bottom of the support plate, the bottom end of the mounting column passes through the connecting plate and extends to the bottom of the connecting plate, a joint is fixedly mounted on the bottom end of the mounting column, and a conical protective tube is fixedly mounted on the top of the joint.

[0016] In the present application, a joint is first used to connect with an externally powered pneumatic tool, and then the pneumatic tool is started to drive the drill bit body to rotate. When the drill bit body is grooving in the rock mass, the drill bit body will be subjected to pressure, and at this time, multiple compression springs can be put in a stressed state. The compression springs in a stressed state can be used to elastically protect the drill bit body, and when the piston plate slides in the buffer groove, the gas in the buffer groove can be squeezed. At this time, the gas can be discharged to the outside through multiple vents, and the area of ​​the vents is much smaller than the area of ​​the piston plate. Therefore, when the piston plate slides in the buffer groove, a certain damping can be formed. The effect can improve the stability of the drill bit body, and prevent the drill bit body from being subjected to excessive restoring force of the compression spring, which causes severe shaking of the drill bit body. Trimming teeth are arranged around the drill bit body, which can prevent the side of the drill bit body from directly contacting the inner wall of the hole groove when grooving, so that the drill bit body can be provided with a good protection effect, and the buffer rubber column can be used to provide certain buffering protection for the alloy teeth, and the buffer rubber column has conventional elasticity and good stability, so it can stably support the alloy teeth so that the alloy teeth have stable excavation ability.

[0017] In the utility model, the ball-tooth drill bit assembly can utilize a connection mechanism composed of a plurality of connection columns and a connection plate through a connection mechanism, and after being connected with a buffer mechanism, it can provide a displacement space for the connection mechanism when it moves, so as to facilitate buffer protection when the drill bit assembly is used for grooving;

[0018] In the utility model, the ball-tooth drill bit assembly can generate a certain pressure during the grooving process of the drill bit body through the buffer mechanism, and at this time, multiple compression springs can be put in a stressed state. The drill bit body can be elastically protected by the compression springs in the stressed state, and when the piston plate slides in the buffer groove, the gas in the buffer groove can be squeezed. At this time, the gas can be discharged outward through multiple vents, and the area of ​​the vent is much smaller than the area of ​​the piston plate. Therefore, when the piston plate slides in the buffer groove, a certain damping effect can be formed, so the stability of the drill bit body can be improved, and the drill bit body is prevented from being subjected to excessive return elastic force of the compression spring, resulting in violent shaking of the drill bit body.

[0019] In the utility model, the ball-tooth drill bit assembly can be connected to an external power pneumatic tool by using a joint through an installation mechanism, so as to realize a stable connection with the drill bit body, thereby realizing a stable drive of the drill bit body, so that the drill bit body can operate stably;

[0020] After being connected to an external pneumatic tool, the utility model can provide a stable and good protection effect for the drill bit body during the subsequent grooving process, thereby greatly reducing the probability of damage to the drill bit body during actual use, so it has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional schematic diagram of the overall structure of a ball-tooth drill bit assembly proposed by the utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the overall structure of a ball-tooth drill bit assembly proposed by the utility model when viewed from above;

[0023] Figure 3 A three-dimensional schematic diagram of the connection structure between the drill bit body and the alloy teeth of a ball-tooth drill bit assembly proposed by the utility model;

[0024] Figure 4 The utility model provides a three-dimensional schematic diagram of the connection structure of a drill bit body, a support column and a piston plate of a ball-tooth drill bit assembly.

[0025] In the figure: 1. drill bit body; 2. chip removal groove; 3. alloy teeth; 4. buffer rubber column; 5. connecting column; 6. compression spring; 7. trimming teeth; 8. connecting plate; 9. support plate; 10. mounting column; 11. joint; 12. frustum protective tube; 13. support column; 14. buffer groove; 15. piston plate; 16. rubber ring; 17. vent hole. DETAILED DESCRIPTION

[0026] 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.

[0027] Example 1

[0028] Reference Figure 1-4 A drill bit assembly comprises a drill bit body 1, a connecting mechanism, a buffer mechanism and a mounting mechanism. A plurality of chip removal grooves 2 are evenly spaced on the drill bit body 1, a plurality of mounting grooves are evenly spaced on the top of the drill bit body 1, and alloy teeth 3 are slidably connected in the mounting grooves, and the tops of the alloy teeth 3 extend to the top of the drill bit body 1, the connecting mechanism is installed at the bottom of the drill bit body 1, the buffer mechanism is connected to the connecting mechanism, the buffer mechanism is used to elastically protect the drill bit body 1, the mounting mechanism is connected to the buffer mechanism, and the mounting mechanism is used to connect to an external pneumatic machine.

[0029] The connecting mechanism includes a plurality of connecting columns 5 fixedly installed at an equal interval at the bottom of the drill bit body 1, and a same connecting plate 8 is fixedly installed at the bottom ends of the plurality of connecting columns 5. The plurality of connecting columns 5 are all connected to the buffer mechanism. The connecting mechanism composed of the plurality of connecting columns 5 and the connecting plate 8 can provide displacement space for the connecting mechanism when it moves after being connected to the buffer mechanism, so as to facilitate buffer protection when the drill bit assembly is used for grooving.

[0030] The connecting mechanism includes a support plate 9 slidably connected to a plurality of connecting columns 5, a compression spring 6 located above the support plate 9 is sleeved on the connecting column 5, and the top and bottom ends of the compression spring 6 are fixedly connected to the bottom of the drill bit body 1 and the bottom of the support plate 9 respectively, a support column 13 is fixedly installed at the top center position of the support plate 9, a buffer groove 14 is provided at the bottom of the drill bit body 1, the top of the support column 13 extends into the buffer groove 14 and a piston plate 15 is fixedly installed, the piston plate 15 is slidably connected to the inner wall of the buffer groove 14, a rubber ring 16 is fixedly installed on the top of the piston plate 15, the rubber ring 16 is sealingly and slidably connected to the inner wall of the buffer groove 14, a plurality of vent holes 17 are evenly spaced on the piston plate 15, the top of the mounting mechanism passes through the connecting plate 8 and is connected to the The bottom of the support plate 9 is connected, and a certain pressure will be generated during the grooving process of the drill bit body 1. At this time, multiple compression springs 6 can be put in a stressed state. The compression springs 6 in the stressed state can be used to elastically protect the drill bit body 1, and when the piston plate 15 slides in the buffer groove 14, the gas in the buffer groove 14 can be squeezed. At this time, the gas can be discharged outward through multiple air vents 17, and the area of ​​the air vents 17 is much smaller than the area of ​​the piston plate 15. Therefore, when the piston plate 15 slides in the buffer groove 14, a certain damping effect can be formed, so the stability of the drill bit body 1 can be improved, and the drill bit body 1 is prevented from being subjected to excessive reset elastic force of the compression spring 6, which causes violent shaking of the drill bit body 1.

[0031] The mounting mechanism includes a mounting column 10 fixedly mounted on the bottom of the support plate 9, the bottom end of the mounting column 10 passes through the connecting plate 8 and extends to the bottom of the connecting plate 8, a joint 11 is fixedly mounted on the bottom end of the mounting column 10, and a frustum protective tube 12 is fixedly mounted on the top of the joint 11. The joint 11 can be connected to an external power pneumatic tool such as an air hammer, so that the drill bit body 1 can be stably connected, thereby achieving stable driving of the drill bit body 1, so that the drill bit body 1 can operate stably.

[0032] The present application can be used in the technical field of drill bit assemblies, and can also be used in other fields applicable to the present application.

[0033] Example 2

[0034] refer to Figure 3, improved on the basis of embodiment 1: a ball-tooth drill bit assembly, which is applied to the technical field of drill bit assemblies, a plurality of trimming teeth 7 are fixedly installed at equal intervals around the outer circle of the drill bit body 1, and the trimming teeth 7 are arranged around the drill bit body 1. When grooving, it can prevent the side of the drill bit body 1 from directly contacting the inner wall of the hole groove opened, so it can provide a good protection effect for the drill bit body 1.

[0035] A buffer rubber column 4 is fixedly installed on the bottom inner wall of the mounting groove, and the top of the buffer rubber column 4 is fixedly connected to the bottom of the alloy tooth 3. The buffer rubber column 4 can provide a certain buffering protection for the alloy tooth 3, and the buffer rubber column 4 has good stability while having conventional elasticity. Therefore, it can stably support the alloy tooth 3 so that the alloy tooth 3 has a stable excavation ability.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ball-tooth drill bit assembly, comprising a drill bit body (1), a plurality of chip removal grooves (2) are formed at equal intervals on the drill bit body (1), a plurality of mounting grooves are formed at equal intervals on the top of the drill bit body (1), and alloy teeth (3) are slidably connected in the mounting grooves, and the tops of the alloy teeth (3) extend to the top of the drill bit body (1), characterized in that: The drill bit assembly also includes: A connecting mechanism, the connecting mechanism being mounted on the bottom of the drill bit body (1); A buffer mechanism, the buffer mechanism is connected to the connecting mechanism, and the buffer mechanism is used to elastically protect the drill bit body (1); The mounting mechanism is connected to the buffer mechanism, and the mounting mechanism is used to be connected to an external pneumatic machine.

2. A ball-tooth drill bit assembly according to claim 1, characterized in that: The connection mechanism comprises a plurality of connection columns (5) fixedly mounted at equal intervals on the bottom of the drill bit body (1), a same connection plate (8) being fixedly mounted at the bottom ends of the plurality of connection columns (5), and the plurality of connection columns (5) are all connected to the buffer mechanism.

3. A ball-tooth drill bit assembly according to claim 2, characterized in that: The connection mechanism comprises a support plate (9) slidably connected to a plurality of connection columns (5); a compression spring (6) located above the support plate (9) is sleeved on the connection column (5); and the top and bottom ends of the compression spring (6) are fixedly connected to the bottom of the drill bit body (1) and the bottom of the support plate (9) respectively; a support column (13) is fixedly installed at the center position of the top of the support plate (9); a buffer groove (14) is provided at the bottom of the drill bit body (1); the top of the support column (13) extends into the buffer groove (14) and is fixedly installed with a piston plate (15); the piston plate (15) is slidably connected to the inner wall of the buffer groove (14); a rubber ring (16) is fixedly installed on the top of the piston plate (15); the rubber ring (16) is sealingly slidably connected to the inner wall of the buffer groove (14); a plurality of ventilation holes (17) are evenly spaced on the piston plate (15); and the top of the installation mechanism passes through the connection plate (8) and is connected to the bottom of the support plate (9).

4. A ball-tooth drill bit assembly according to claim 3, characterized in that: A plurality of trimming teeth (7) are fixedly mounted at equal intervals around the outer circumference of the drill bit body (1).

5. A ball-tooth drill bit assembly according to claim 3, characterized in that: A buffer rubber column (4) is fixedly mounted on the inner wall of the bottom of the mounting groove, and the top of the buffer rubber column (4) is fixedly connected to the bottom of the alloy tooth (3).

6. A button drill bit assembly according to claim 3, characterized in that: The mounting mechanism comprises a mounting column (10) fixedly mounted on the bottom of the support plate (9), the bottom end of the mounting column (10) passes through the connecting plate (8) and extends to the bottom of the connecting plate (8), a joint (11) is fixedly mounted on the bottom end of the mounting column (10), and a truncated cone protective tube (12) is fixedly mounted on the top of the joint (11).

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