Novel high-pressure jet grouting two-wing spiral rapid double-pipe drilling coreless drill bit

Abstract

The utility model discloses a novel high-pressure jet grouting two-wing spiral rapid double-pipe drilling coreless drill bit, which belongs to the technical field of coreless drill bits, and comprises an outer pipe, a drill rod connecting plate and a coreless drill bit, the drill rod connecting plate is internally provided with a dismounting device, the dismounting device comprises six spline grooves, and the spline grooves are connected with the outer pipe. Spline plates are inserted into the inner walls of the six spline grooves correspondingly, dismounting and mounting plates are fixedly connected to the surfaces of the six spline plates, and three threaded grooves are formed in the dismounting and mounting plates and the drill rod connecting plate correspondingly. According to the coreless drill rod connecting plate, by arranging the dismounting mounting plate, the spline plate, the spline groove, the self-locking threaded rod, the anti-corrosion connecting rotating plate and the limiting protection ring, when the coreless drill rod needs to be conveniently dismounted and mounted, and meanwhile the stability between the coreless drill rod and the drill rod connecting plate is improved, the dismounting mounting plate with the coreless drill rod is clamped into the drill rod connecting plate; and the spline plate on the surface of the dismounting mounting plate is correspondingly connected and tightly clamped with the spline groove in the drill rod connecting plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of coreless drill bits, in particular to a novel high-pressure rotary jet double-wing spiral fast double-tube drilling coreless drill bit. Background Art

[0002] A coreless drill bit is a drilling tool widely used in geotechnical engineering, oil drilling and other drilling fields. The main purpose of a coreless drill bit is not to obtain complete core samples, but to focus on quickly crushing and cutting drilling objects such as rock and soil, turning them into debris and discharging them out of the borehole through corresponding slag discharge methods, thereby achieving a process of continuous deepening and extension of the borehole, thereby achieving engineering purposes such as building pile foundations, strengthening strata, and constructing water-stop curtains.

[0003] The existing new high-pressure rotary jet two-wing spiral fast double-tube drilling coreless drill bit will wear out after repeated use, and it is inconvenient to disassemble and replace it with the drill rod connecting plate on the drilling equipment. At the same time, during the installation process of the coreless drill bit and the drill rod connecting plate on the drilling equipment, it is only simply fixed, so that the coreless drill bit may swing eccentrically during rotary drilling, which will affect the drilling accuracy and effect. Therefore, a new high-pressure rotary jet two-wing spiral fast double-tube drilling coreless drill bit is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a novel high-pressure rotary jet two-wing spiral fast double-tube drilling coreless drill bit to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of high-pressure rotary jet two-wing spiral fast double-tube drilling coreless drill bit, comprising an outer tube, a drill rod connecting plate and a coreless drill bit, wherein a disassembly and assembly device is provided inside the drill rod connecting plate, and the disassembly and assembly device comprises six spline grooves, the inner walls of the six spline grooves are respectively inserted with spline plates, and the surfaces of the six spline plates are fixedly connected to the disassembly and mounting plates. The disassembly and mounting plate and the drill rod connecting plate are respectively provided with three thread grooves, and the inner walls of the three thread grooves are threadedly connected with self-locking threaded rods. The disassembly and mounting plate and the drill rod connecting plate are respectively provided with three guide slides, one end of the three thread grooves is respectively fixedly connected to an anti-corrosion connecting rotating plate, the surfaces of the three anti-corrosion connecting rotating plates are respectively rotatably connected to a limiting protection ring, one end of the three anti-corrosion connecting rotating plates is respectively fixedly connected to a rotating handle, and the surfaces of the three limit protection rings are respectively fixedly connected to a guide slide.

[0006] When it is required to facilitate the disassembly and assembly of the coreless drill bit while improving the stability between the coreless drill bit and the drill rod connecting plate, the disassembly and assembly plate with the coreless drill bit is clamped in the interior of the drill rod connecting plate, the spline plate on the surface of the disassembly and assembly plate is connected and tightly clamped with the spline groove in the interior of the drill rod connecting plate in correspondence, the close-fitting limit between the two can make the drill rod connecting plate and the coreless drill bit more stable and efficient in the process of transmitting torque, and can further enhance the coaxiality of the connection, then the self-locking screw rod is screwed into the interior of the disassembly and assembly plate and the drill rod connecting plate to realize the fixation therebetween, the self-locking screw rod has better self-locking property, so that the self-locking screw rod can effectively prevent the connection from loosening in the high-torsion drilling process, in the process of screwing the self-locking screw rod, the anticorrosion connecting rotating plate, the limit protection ring and the self-locking screw rod can be moved into the interior of the disassembly and assembly plate and the drill rod connecting plate to realize storage, thereby the sealing and anticorrosion effect of the self-locking screw rod can be realized, and the connection stability of the self-locking screw rod can be ensured as much as possible, under the double connection of the internal spline connection and the external self-locking screw connection, the eccentric swing of the coreless drill bit in the rotating process can be avoided as much as possible, thereby the drilling progress and effect of the coreless drill bit can be ensured, and the disassembly and assembly of the coreless drill bit can be conveniently realized.

[0007] As a preferred scheme, the surface of the outer pipe is provided with spiral blades, and the surface of the outer pipe is provided with a plurality of outer pipe nozzles.

[0008] As a preferred scheme, the inner pipe is arranged in the outer pipe, and the surface of the inner pipe is provided with a plurality of inner pipe nozzles.

[0009] As a preferred scheme, the six spline grooves are arranged on the inner wall of the drill rod connecting plate.

[0010] As a preferred scheme, the disassembly and assembly plate is clamped in the interior of the drill rod connecting plate, and the bottom of the disassembly and assembly plate is fixedly connected with the top of the three coreless drill bits.

[0011] As a preferred scheme, the guide sliding plate is in sliding connection with the guide sliding groove.

[0012] By arranging the guide sliding groove and the guide sliding plate, the guide sliding plate can move on the inner wall of the guide sliding groove, and the guide sliding groove can provide the guide sliding plate with limiting and guiding effects, so that the disassembly device can more accurately realize the disassembly and replacement function in the process of disassembling and replacing the coreless drill bit, thereby guaranteeing the disassembly and replacement function of the disassembly device.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] The utility model provides a disassembly and installation plate, a spline plate, a spline groove, a self-locking threaded rod, an anti-corrosion connecting rotating plate and a limit protection ring. When it is necessary to facilitate the disassembly and installation of the coreless drill bit and improve the stability between the coreless drill bit and the drill rod connecting plate, the disassembly and installation plate with the coreless drill bit is clamped into the inside of the drill rod connecting plate, and the spline plate on the surface of the disassembly and installation plate is connected with the spline groove inside the drill rod connecting plate and tightly clamped. The fit and limit between the two can make the drill rod connecting plate and the coreless drill bit more stable and efficient in the process of transmitting torque, and can further enhance the coaxiality of the connection. After that, the self-locking threaded rod is twisted to screw it into the inside of the disassembly and installation plate and the drill rod connecting plate to achieve fixation between the two, and self-locking The threaded rod has better self-locking performance, which enables the self-locking threaded rod to effectively prevent the connection from loosening during high-torsion drilling. During the twisting of the self-locking threaded rod, the anti-corrosion connection rotating plate, the limit protection ring and the self-locking threaded rod can be moved to the inside of the disassembly and assembly plate and the drill rod connecting plate for storage, thereby achieving a sealing and anti-corrosion effect on the self-locking threaded rod and ensuring the connection stability of the self-locking threaded rod as much as possible. Under the dual connection of the internal spline connection and the external self-locking threaded connection, the eccentric swing of the coreless drill bit during the rotation process can be avoided as much as possible, thereby ensuring the drilling progress and effect of the coreless drill bit, and also making it convenient to realize the disassembly and assembly of the coreless drill bit.

[0015] The utility model provides a guide slot and a guide slide, and the guide slide can move on the inner wall of the guide slot, and the guide slot can provide a limiting and guiding function for the guide slide, so that the disassembly and assembly device can more accurately realize the disassembly and replacement function during the process of disassembling and replacing the coreless drill bit, thereby providing a guarantee for the disassembly and assembly device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model in a frontal perspective;

[0017] Figure 2 This is a structural diagram of the disassembly and assembly device of the utility model;

[0018] Figure 3 This is a schematic diagram of the top cross-section of the disassembly and assembly device of the utility model;

[0019] Figure 4 For this utility model Figure 3 Schematic diagram of the structure enlarged at point A.

[0020] In the figure: 1, outer tube; 2, spiral blade; 3, outer tube spout; 4, inner tube; 5, inner tube spout; 6, drill rod connecting plate; 7, drill bit; 8, dismounting device; 801, spline groove; 802, spline plate; 803, dismounting and mounting plate; 804, threaded groove; 805, self-locking threaded rod; 806, guide sliding groove; 807, anticorrosion connecting rotating plate; 808, limiting protection ring; 809, rotating handle; 810, guide sliding plate. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with examples.

[0022] The following examples are used to illustrate the utility model, but cannot be used to limit the protection scope of the utility model. The conditions in the examples can be further adjusted according to specific conditions, and simple improvement of the method of the utility model under the concept premise of the utility model all belong to the range required to be protected by the utility model.

[0023] Please refer to Figure 1-4The utility model provides a new type of high-pressure rotary jet two-wing spiral fast double-tube drilling coreless drill bit, including an outer tube 1, a drill rod connecting plate 6 and a coreless drill bit 7. The drill rod connecting plate 6 is provided with a disassembly and assembly device 8 inside. The disassembly and assembly device 8 includes six spline grooves 801. The inner walls of the six spline grooves 801 are respectively inserted with spline plates 802. The surfaces of the six spline plates 802 are fixedly connected with a disassembly and assembly plate 803. The disassembly and assembly plate 803 and the drill rod connecting plate 6 are respectively provided with three threaded grooves 804. The inner walls of the three threaded grooves 804 are threadedly connected with self-locking threaded rods 805. The disassembly and assembly plate 803 and the drill rod connecting plate 6 are respectively provided with three guide grooves. 806, one end of the three threaded grooves 804 is respectively fixedly connected with an anti-corrosion connecting rotating plate 807, the surfaces of the three anti-corrosion connecting rotating plates 807 are respectively rotatably connected with a limited protection ring 808, one end of the three anti-corrosion connecting rotating plates 807 is respectively fixedly connected with a rotating handle 809, and the surfaces of the three limit protection rings 808 are respectively fixedly connected with a guide slide 810. By arranging the disassembly and assembly of the mounting plate 803, the spline plate 802, the spline groove 801, the self-locking threaded rod 805, the anti-corrosion connecting rotating plate 807 and the limit protection ring 808, when it is necessary to facilitate the disassembly and assembly of the coreless drill bit 7 and improve the stability between the coreless drill bit 7 and the drill rod connecting plate 6, the coreless drill bit 7 will be The disassembly and installation plate 803 of the core drill bit 7 is clamped in the interior of the drill rod connecting plate 6, and the spline plate 802 on the surface of the disassembly and installation plate 803 is correspondingly connected with the spline groove 801 inside the drill rod connecting plate 6 and tightly engaged. The fit limit between the two will make the drill rod connecting plate 6 and the coreless drill bit 7 more stable and efficient in the process of transmitting torque, and can also further enhance the coaxiality of the connection. Then, the self-locking threaded rod 805 is twisted to screw it into the disassembly and installation plate 803 and the drill rod connecting plate 6 to achieve fixation between the two. The self-locking threaded rod 805 has better self-locking performance, so that the self-locking threaded rod 805 can effectively prevent the connection during high-torsion drilling. Loosening, during the screwing of the self-locking threaded rod 805, the anti-corrosion connecting rotating plate 807, the limit protection ring 808 and the self-locking threaded rod 805 can be moved to the inside of the disassembly and assembly plate 803 and the drill rod connecting plate 6 for storage, thereby achieving the sealing and anti-corrosion effect of the self-locking threaded rod 805, and at the same time ensuring the connection stability of the self-locking threaded rod 805 as much as possible. Under the dual connection of the internal spline connection and the external self-locking threaded connection, the eccentric swing of the coreless drill bit 7 during the rotation process can be avoided as much as possible, thereby providing a guarantee for the drilling progress and effect of the coreless drill bit 7, and the coreless drill bit 7 can also be conveniently disassembled and assembled.

[0024] The surface of the outer tube 1 is provided with spiral blades 2 , and the surface of the outer tube 1 is provided with a plurality of outer tube nozzles 3 .

[0025] An inner tube 4 is provided inside the outer tube 1 , and a plurality of inner tube nozzles 5 are provided on the surface of the inner tube 4 .

[0026] Six spline grooves 801 are formed on the inner wall of the drill rod connecting plate 6 .

[0027] The disassembly and installation plate 803 is clamped inside the drill rod connecting plate 6 , and the bottom of the disassembly and installation plate 803 is fixedly connected to the tops of the three coreless drill bits 7 .

[0028] The guide slide 810 is slidably connected to the guide groove 806. By setting the guide groove 806 and the guide slide 810, the guide slide 810 can move on the inner wall of the guide groove 806. The guide groove 806 can provide limiting and guiding functions for the guide slide 810, so that the disassembly and assembly device 8 can more accurately realize the disassembly and replacement function during the process of disassembling the coreless drill bit 7, thereby providing a guarantee for the disassembly and replacement function of the disassembly and assembly device 8.

[0029] The working principle and usage process of the utility model are as follows: when it is necessary to facilitate the disassembly and assembly of the coreless drill bit 7 and improve the stability between the coreless drill bit 7 and the drill rod connecting plate 6, the disassembly and mounting plate 803 with the coreless drill bit 7 is clamped into the inside of the drill rod connecting plate 6. At this time, the spline plate 802 on the surface of the disassembly and mounting plate 803 will correspond to the spline groove 801 inside the drill rod connecting plate 6 and tightly engage. Then, the self-locking threaded rod 805 is twisted to screw it into the disassembly and mounting plate 803 and the inside of the drill rod connecting plate 6 to achieve fixation between the two. During the twisting process of the self-locking threaded rod 805, the anti-corrosion connecting rod fixedly connected to the self-locking threaded rod 805 The plate 807 will rotate inside the limit protection ring 808, and at the same time, the limit protection ring 808 will also move along with the self-locking threaded rod 805 toward the inside of the disassembly and assembly plate 803 and the drill rod connecting plate 6. The guide slide 810 fixedly connected to the limit protection ring 808 will also move and be accommodated inside the disassembly and assembly plate 803 and the drill rod connecting plate 6, thereby achieving sealing and corrosion protection for the self-locking threaded rod 805. Under the dual connection of the internal spline connection and the external self-locking threaded connection, the disassembly and assembly plate 803 can be firmly installed on the drill rod connecting plate 6, thereby enabling the coreless drill bit 7 and the drill rod connecting plate 6 to be conveniently and firmly disassembled and assembled.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel high-pressure rotary jet double-wing spiral rapid double-tube drilling coreless drill bit, comprising an outer tube (1), a drill rod connecting plate (6) and a coreless drill bit (7), characterized in that: The drill rod connecting plate (6) is provided with a disassembly and assembly device (8) inside. The disassembly and assembly device (8) includes six spline grooves (801). The inner walls of the six spline grooves (801) are respectively inserted with spline plates (802). The surfaces of the six spline plates (802) are fixedly connected with a disassembly and assembly mounting plate (803). The insides of the disassembly and assembly mounting plate (803) and the drill rod connecting plate (6) are respectively provided with three thread grooves (804). The inner walls of the three thread grooves (804) are threadedly connected with self-locking threaded rods (805). Three guide grooves (806) are respectively provided inside the mounting plate (803) and the drill rod connecting plate (6), one end of the three threaded grooves (804) is respectively fixedly connected to an anti-corrosion connecting rotating plate (807), the surfaces of the three anti-corrosion connecting rotating plates (807) are respectively rotatably connected to a limit protection ring (808), one end of the three anti-corrosion connecting rotating plates (807) is respectively fixedly connected to a rotating handle (809), and the surfaces of the three limit protection rings (808) are respectively fixedly connected to a guide slide plate (810).

2. A novel high-pressure jet grouting two-wing spiral rapid double-tube drilling coreless drill bit according to claim 1, characterized in that: The surface of the outer tube (1) is provided with spiral blades (2), and the surface of the outer tube (1) is provided with a plurality of outer tube nozzles (3).

3. A novel high-pressure jet grouting two-wing spiral rapid double-tube drilling coreless drill bit according to claim 2, characterized in that: An inner tube (4) is provided inside the outer tube (1), and a plurality of inner tube nozzles (5) are provided on the surface of the inner tube (4).

4. The novel high-pressure jet grouting two-wing spiral rapid double-tube drilling coreless drill bit according to claim 1 is characterized by: The six spline grooves (801) are formed on the inner wall of the drill rod connecting plate (6).

5. The novel high-pressure jet grouting two-wing spiral rapid double-tube drilling coreless drill bit according to claim 1 is characterized by: The disassembly and installation plate (803) is clamped inside the drill rod connecting plate (6), and the bottom of the disassembly and installation plate (803) is fixedly connected to the tops of the three coreless drill bits (7).

6. The novel high-pressure jet grouting two-wing spiral rapid double-tube drilling coreless drill bit according to claim 1 is characterized by: The guide slide plate (810) is slidably connected to the guide slide groove (806).

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