Novel rotary excavating drill bit connecting box body

Abstract

The utility model relates to the field of rotary drilling rigs, in particular to a novel rotary drilling bit connecting box which comprises a drill bit, a connecting assembly is arranged on the top surface of the drill bit, a limiting assembly is arranged on the top surface of the connecting assembly, the connecting assembly comprises an annular plate arranged on the top surface of the drill bit, and an annular block is arranged on the top surface of the annular plate. The bottom surface of the annular block is in threaded connection with a first limiting bolt, the surface of the annular block is fixedly connected with a reinforcing column, the surface of the reinforcing column is in threaded connection with a limiting bolt, and a hydraulic press is fixed to the top surface of the annular block. The annular block and the reinforcing columns are arranged in the connecting assembly, the multiple sets of reinforcing columns are arranged, the stability between the connecting block and the annular plate and the stability between the connecting block and the drill bit are improved, and the technical problem that due to high-strength rock and high-frequency vibration during drilling, the joint of the drill bit and the connecting box body cracks frequently is solved; and the interior of the drill bit can be cleaned through a hydraulic press and a scraper.

Description

Technical Field

[0001] The utility model relates to the field of rotary drilling rigs, in particular to a novel rotary drilling drill bit connection box. Background Art

[0002] The rotary drilling rig is a construction machine suitable for drilling holes in building foundation projects. It is mainly suitable for construction in sandy soil, clay soil, silty soil and other soil layers, and is widely used in various foundation constructions such as cast-in-place piles, continuous walls, and foundation reinforcement. The drilling head connection box is a component of the connection between the rotary drilling bit and the rotary drilling machine drill rod. It is usually welded from steel into a box body that matches the rotary drilling machine drill rod, and a reinforcement frame is welded on the outer periphery of the box.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: during the use of the rotary drilling bit connection box, the high-strength rock and high-frequency vibration during drilling often cause cracks in the connection between the drill bit and the connection box, which in turn leads to construction interruption and affects on-site construction. Utility Model Content

[0004] In order to improve the problem that during the use of the current rotary drill bit connection box, high-strength rock and high-frequency vibration during drilling often cause cracks in the connection between the drill bit and the connection box, which in turn leads to construction interruption and affects on-site construction, the present application provides a new rotary drill bit connection box.

[0005] The present application provides a new rotary drilling drill bit connection box adopts the following technical scheme: a new rotary drilling drill bit connection box, including a drill bit, a connection assembly is provided on the top surface of the drill bit, and a limit assembly is provided on the top surface of the connection assembly, the connection assembly includes an annular plate arranged on the top surface of the drill bit, and an annular block is provided on the top surface of the annular plate, and a reinforcement column is fixedly connected to the surface of the annular block, and the surface of the reinforcement column is connected to a limit bolt by a thread, a hydraulic pressure is fixed on the top surface of the annular block, and a scraper is fixed on the bottom surface of the hydraulic pressure, a water tank is fixed on the top surface of the annular block, and a connecting pipe is fixed on the surface of the water tank, a flow valve is provided on the surface of the connecting pipe, and a nozzle is provided on the surface of the flow valve.

[0006] It is further provided that a connecting block is fixed on the top surface of the annular block, and a limiting groove is provided on the surface of the connecting block.

[0007] It is further provided that the surface of the scraper is in contact with the inner wall of the drill bit, and the annular plate and the drill bit are an integrated structure.

[0008] It is further provided that the reinforcement columns are provided in a plurality of groups, and the reinforcement columns are symmetrically arranged with each other, and the surfaces of the reinforcement columns are fitted to the inner wall of the annular plate and are fixed by welding.

[0009] It is further configured that the limit assembly includes a cylinder arranged on the top surface of the connecting block, and the upper and lower surfaces of the cylinder are provided with square grooves, the surface of the cylinder is provided with a mounting hole, a U-shaped cylinder is fixed on the surface of the cylinder, a movable block is movably connected inside the U-shaped cylinder, and a limit block is fixed on the side surface of the movable block, a sliding column is fixed on the surface of the movable block, and a spring is provided inside the U-shaped cylinder.

[0010] It is further provided that the diameter of the limit block is equal to the inner diameter of the limit groove, and the limit block and the movable block are an integrated structure.

[0011] Compared with the related art, the new rotary drilling bit connection box provided by the utility model has the following beneficial effects:

[0012] The utility model provides a novel rotary drilling drill bit connection box, in which a connection component is arranged on the surface of the drill bit, and an annular block and a reinforcement column are arranged inside the connection component, and a plurality of groups of reinforcement columns are arranged, thereby improving the stability between the connection block, the annular plate and the drill bit, avoiding the technical problem that high-strength rock and high-frequency vibration during drilling often cause cracking at the connection between the drill bit and the connection box, and the inside of the drill bit can be cleaned by the arranged hydraulic device and scraper, and at the same time, when the drill bit rotates, under the action of centrifugal force, the water inside the water tank flows into the nozzle through the connecting pipe and the flow valve, thereby reducing the dust generated when the drill bit is working.

[0013] The utility model provides a novel rotary drilling drill bit connection box body, which adopts a limit assembly on the top of the connection block, by arranging a U-shaped cylinder and a limit block inside the limit assembly, by sliding the movable block, the movable block drives the limit block to slide, and the limit block is separated from the limit groove, so that the drill bit can be disassembled, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural schematic diagram of a preferred embodiment of a new rotary drilling bit connection box provided by the utility model;

[0015] Figure 2 This is the front view of the utility model;

[0016] Figure 3 This is a bottom view of the utility model;

[0017] Figure 4 It is a rear sectional view of the utility model.

[0018] Numbers in the figure: 1. drill bit; 2. connecting assembly; 201. annular plate; 202. annular block; 203. limiting groove; 204. reinforcing column; 205. limiting bolt; 206. hydraulic pressure; 207. scraper; 208. water tank; 209. connecting pipe; 210. flow valve; 211. nozzle; 212. connecting block; 3. limiting assembly; 301. cylinder; 302. square groove; 303. mounting hole; 304. U-shaped cylinder; 305. movable block; 306. limiting block; 307. sliding column; 308. spring. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings show typical embodiments of the present invention.

[0020] Embodiment 1:

[0021] like Figure 1-4 As shown, the new rotary drilling bit connection box of the utility model comprises a drill bit 1, a connecting component 2 is provided on the top surface of the drill bit 1, and a limiting component 3 is provided on the top surface of the connecting component 2, the connecting component 2 comprises an annular plate 201 arranged on the top surface of the drill bit 1, and an annular block 202 is provided on the top surface of the annular plate 201, and a reinforcing column 204 is fixedly connected to the surface of the annular block 202, and a limiting bolt 205 is connected to the surface of the reinforcing column 204 by a threaded connection, a hydraulic pressure 206 is fixed on the top surface of the annular block 202, and a scraper 207 is fixed on the bottom surface of the hydraulic pressure 206, a water tank 208 is fixed on the top surface of the annular block 202, and a connecting pipe 209 is fixed on the surface of the water tank 208, a flow valve 210 is provided on the surface of the connecting pipe 209, and a nozzle 211 is provided on the surface of the flow valve 210.

[0022] like Figure 1-4 As shown, a connection block 212 is fixed on the top surface of the annular block 202 , and a limiting groove 203 is provided on the surface of the connection block 212 .

[0023] like Figure 1-4 As shown, the surface of the scraper 207 is in contact with the inner wall of the drill bit 1 , and the annular plate 201 and the drill bit 1 are an integrated structure.

[0024] like Figure 1-4 As shown, a plurality of reinforcement columns 204 are provided, and the reinforcement columns 204 are symmetrically arranged with each other, and the surfaces of the reinforcement columns 204 are in contact with the inner wall of the annular plate 201 and are fixed by welding.

[0025] During implementation, the annular block 202 and the reinforcement column 204 are set, and the reinforcement column 204 is set in multiple groups, which improves the stability between the connecting block 212 and the annular plate 201 and the drill bit 1, avoids high-strength rocks and high-frequency vibrations during drilling, which often cause cracks at the connection between the drill bit and the connecting box. At the same time, the inside of the drill bit 1 needs to be cleaned. By starting the hydraulic cylinder 206, the hydraulic cylinder 206 pushes the scraper 207 to slide, and the scraper 207 scrapes the inner wall of the drill bit 1 to facilitate cleaning of the drill bit 1. The flow valve 210 is opened. When the drill bit 1 rotates, under the action of centrifugal force, the water inside the water tank 208 flows into the nozzle 211 through the connecting pipe 209 and the flow valve 210, thereby reducing the dust generated when the drill bit 1 is working.

[0026] Embodiment 2:

[0027] like Figure 1-4 As shown, on the basis of embodiment 1, the utility model provides a technical solution: the limit assembly 3 includes a cylinder 301 arranged on the top surface of the connecting block 212, and the upper and lower surfaces of the cylinder 301 are provided with square grooves 302, the surface of the cylinder 301 is provided with a mounting hole 303, a U-shaped cylinder 304 is fixed on the surface of the cylinder 301, the interior of the U-shaped cylinder 304 is movably connected with a movable block 305, and the side surface of the movable block 305 is fixed with a limit block 306, the surface of the movable block 305 is fixed with a sliding column 307, and the interior of the U-shaped cylinder 304 is provided with a spring 308.

[0028] like Figure 1-4 As shown, the diameter of the limiting block 306 is equal to the inner diameter of the limiting groove 203, and the limiting block 306 and the movable block 305 are an integrated structure.

[0029] During implementation, when it is necessary to separate the connecting block 212 from the cylinder 301, the sliding column 307 is slid, and the sliding column 307 drives the movable block 305 to slide, and the movable block 305 drives the limit block 306 to separate from the limit groove 213, and the drill bit 1 and the connecting block 212 are slid, so that the connecting block 212 can be separated from the cylinder 301, which is convenient for disassembly and replacement of the drill bit 1.

[0030] In this embodiment: a YT1-45Z / 6 hydraulic press 206 is used.

[0031] The advantages of this technical solution in practical applications include but are not limited to the following:

[0032] 1. The connection assembly 2 is provided with an annular block 202 and a reinforcement column 204. The reinforcement column 204 is provided in multiple groups, which improves the stability between the connection block 212, the annular plate 201 and the drill bit 1, and avoids the technical problem that high-strength rocks and high-frequency vibrations during drilling often cause cracks at the connection between the drill bit and the connection box. The hydraulic press 206 and the scraper 207 are provided to clean the inside of the drill bit 1. At the same time, when the drill bit 1 rotates, under the action of centrifugal force, the water in the water tank 208 flows into the nozzle 211 through the connecting pipe 209 and the flow valve 210, thereby reducing the dust generated when the drill bit 1 is working;

[0033] 2. By arranging a U-shaped cylinder 304 and a limiting block 306 inside the limiting assembly 3, the movable block 305 is slid, so that the movable block 305 drives the limiting block 306 to slide, and the limiting block 306 is separated from the limiting groove 213, so that the drill bit 1 can be disassembled, which is more convenient to use.

[0034] The present technical solution adopts the arrangement of the annular block 202 and the reinforcement column 204, and the reinforcement column 204 is provided with multiple groups, which improves the stability between the connection block 212, the annular plate 201 and the drill bit 1, avoids high-strength rock and high-frequency vibration during drilling, which often causes cracks at the connection between the drill bit and the connection box. At the same time, when the inside of the drill bit 1 needs to be cleaned, the hydraulic pressure 206 is started, and the hydraulic pressure 206 pushes the scraper 207 to slide, and the scraper 207 scrapes the inner wall of the drill bit 1, which is convenient for cleaning the drill bit 1, and the flow valve 210 is opened, and the drill bit 1 is cleaned. When the drill head 1 rotates, under the action of centrifugal force, the water inside the water tank 208 flows into the nozzle 211 through the connecting pipe 209 and the flow valve 210, reducing the dust generated when the drill bit 1 is working. When it is necessary to separate the connecting block 212 from the cylinder 301, the sliding column 307 is slid, and the sliding column 307 drives the movable block 305 to slide, and the movable block 305 drives the limit block 306 to separate from the limit groove 213. The drill bit 1 and the connecting block 212 are slid, so that the connecting block 212 can be separated from the cylinder 301, which is convenient for disassembling and replacing the drill bit 1.

[0035] The above are only exemplary embodiments of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the disclosure of the specification and the truth of practice, it will be easy for those skilled in the art to think of other embodiments of the present disclosure. This application is intended to cover any variation, use or adaptive change of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field not recorded in the present disclosure.

Claims

1. A novel rotary drilling drill bit connection box, comprising a drill bit (1), characterized in that: A connecting component (2) is provided on the top surface of the drill bit (1), and a limiting component (3) is provided on the top surface of the connecting component (2); The connection assembly (2) comprises an annular plate (201) arranged on the top surface of the drill bit (1), and an annular block (202) is arranged on the top surface of the annular plate (201), and a reinforcing column (204) is fixedly connected to the surface of the annular block (202), and a limiting bolt (205) is connected to the surface of the reinforcing column (204) by threaded connection, a hydraulic pressure (206) is fixed to the top surface of the annular block (202), and a scraper (207) is fixed to the bottom surface of the hydraulic pressure (206), a water tank (208) is fixed to the top surface of the annular block (202), and a connecting pipe (209) is fixed to the surface of the water tank (208), a flow valve (210) is arranged on the surface of the connecting pipe (209), and a nozzle (211) is arranged on the surface of the flow valve (210).

2. The novel rotary drilling drill bit connection box according to claim 1 is characterized in that: A connection block (212) is fixed on the top surface of the annular block (202), and a limiting groove (203) is provided on the surface of the connection block (212).

3. The new rotary drilling drill bit connection box according to claim 1 is characterized in that: The surface of the scraper (207) is in contact with the inner wall of the drill bit (1), and the annular plate (201) and the drill bit (1) are an integrated structure.

4. The novel rotary drilling drill bit connection box according to claim 1 is characterized in that: The reinforcement columns (204) are provided in multiple groups, and the reinforcement columns (204) are arranged symmetrically with each other. The surfaces of the reinforcement columns (204) are fitted to the inner wall of the annular plate (201) and are fixed by welding.

5. The novel rotary drilling drill bit connection box according to claim 1 is characterized in that: The limiting assembly (3) comprises a cylinder (301) arranged on the top surface of the connecting block (212), and the upper and lower surfaces of the cylinder (301) are both provided with square grooves (302), the surface of the cylinder (301) is provided with a mounting hole (303), a U-shaped cylinder (304) is fixed on the surface of the cylinder (301), a movable block (305) is movably connected inside the U-shaped cylinder (304), a limiting block (306) is fixed on the side surface of the movable block (305), a sliding column (307) is fixed on the surface of the movable block (305), and a spring (308) is provided inside the U-shaped cylinder (304).

6. The novel rotary drilling drill bit connection box according to claim 5 is characterized in that: The diameter of the limiting block (306) is equal to the inner diameter of the limiting groove (203), and the limiting block (306) and the movable block (305) are an integrated structure.

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