Hydraulic down-the-hole drill

Abstract

The utility model provides a hydraulic down-the-hole drill, which belongs to the field of down-the-hole drills and comprises an output shaft, a slag discharge pipe and a drill bit, the slag discharge pipe is arranged outside the output shaft, the drill bit is mounted at the bottom end of the output shaft, a dust collection component is arranged on the outer wall of the output shaft, and an auxiliary component is arranged inside the dust collection component. The dust collecting assembly comprises a dust collecting cover, a driving ring, a connecting rod, a rotating rod, a protruding block and a groove. The dust collecting cover is installed at the top of the drill bit. According to the dust collection device, the dust collection cover and the rotating rod are arranged, chippings generated in the operation process of the drill bit can enter the dust collection cover through surface holes of the dust collection cover, the situation that the chippings are accumulated in the working holes of the drill bit, and the surface of the drill bit is abraded is avoided, and meanwhile when the output shaft rotates, the rotating rod can be driven to rotate; chippings clamped in holes in the surface of the dust collecting cover are damaged, so that the circulation effect of the chippings is guaranteed, and the problem that the surface of a drill bit is abraded by a large number of chippings in the operation process of an existing drilling tool is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of down -the -hole drill, concretely, relates to a hydraulic down -the -hole drill. BACKGROUND

[0002] At present, pneumatic down -the -hole hammer drilling technology is widely used in hydrology and water well drilling, geotechnical engineering construction, geological core drilling, oil and gas and mineral resources exploration and development fields due to its fast mechanical drilling speed, clean hole bottom residue, high drilling efficiency and other advantages, which can effectively improve the drilling speed and construction efficiency, however, due to the need of down -the -hole hammer work for drill rod to drive its rotation, it is difficult to directly cooperate with directional tools, and it is relatively inconvenient to apply in directional well, horizontal well and large displacement well construction, which seriously restricts the popularization and application of pneumatic down -the -hole hammer in the field, therefore, the hydraulic down -the -hole drill emerges as the times require.

[0003] The drill tool includes a drill bit, a reamer, a centralizer and an inner and outer tube, and is also provided with many spare parts, wherein a large amount of debris is generated during the drilling process of the drill bit, and the existing drill tool is worn on the surface of the drill bit during use, thereby increasing the wear rate of the drill bit and increasing the drilling resistance of the drill bit. UTILITARIAN CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a hydraulic down -the -hole drill, which aims at solving the problem that a large amount of debris will cause wear on the surface of the drill bit during the operation of the existing drill.

[0005] The utility model is realized as follows:

[0006] The utility model provides a hydraulic down -the -hole drill, including output shaft, residue discharge pipe and drill bit, the residue discharge pipe is arranged at the outside of output shaft, the drill bit is installed at the bottom of output shaft, the outer wall of output shaft is provided with dust collection assembly, the inside of dust collection assembly is provided with auxiliary assembly.

[0007] The dust collection assembly includes a dust collection cover, a drive ring, a connecting rod, a rotating rod, a protruding block and a groove, the dust collection cover is installed on the top of the drill bit, the drive ring is installed on the outer wall of the output shaft, the connecting rod is fixedly connected to the outer wall of the drive ring, the rotating rod is arranged on the inner wall of the dust collection cover, the protruding block is fixedly connected to the outer wall of the output shaft, and the groove is arranged in the inner wall of the drive ring.

[0008] Preferably, the outer wall of the dust collection cover is uniformly distributed with holes, and the drive ring is located on the outer wall of the dust collection cover and is in sliding connection with the outer wall of the dust collection cover.

[0009] By adopting the above technical scheme, the drive ring can rotate on the surface of the dust collection cover.

[0010] Preferably, one end of the connecting rod is fixedly connected with the outer wall of the rotating rod, and the outer wall of the rotating rod is rotatably connected with the inner wall of the dust collecting cover.

[0011] By adopting the above technical scheme, when the driving ring rotates, the rotating rod can be driven to rotate in the interior of the dust collecting cover through the connecting rod.

[0012] Preferably, the inner diameter length of the groove is adapted to the outer diameter length of the protrusion, the inner diameter height of the groove is greater than the outer diameter height of the protrusion, and the outer wall of the protrusion is slidably connected with the inner wall of the groove.

[0013] By adopting the above technical scheme, the protrusion can slide in the interior of the groove, and when the output shaft drives the protrusion to rotate, the driving ring can be driven to rotate through the groove.

[0014] Preferably, the auxiliary assembly comprises a shell, a rotating rod, a reset spring, a knocking plate, a limiting plate and a hitting plate, the shell is fixedly connected with the top of the inner wall of the dust collecting cover, the rotating rod is installed at the bottom of the shell, the reset spring is arranged in the interior of the shell, the knocking plate is fixedly connected with the bottom end of the rotating rod, the limiting plate is fixedly connected with the bottom of the shell, and the hitting plate is fixedly connected with the top end of the rotating rod.

[0015] Preferably, the top end of the rotating rod penetrates through the bottom of the shell and extends to the interior of the shell, and the outer wall of the rotating rod is rotatably connected with the penetrated inner wall of the shell.

[0016] By adopting the above technical scheme, the rotating rod can rotate in the interior of the shell.

[0017] Preferably, the top and bottom of the reset spring are fixedly connected with the top of the inner wall of the shell and the top of the rotating rod respectively, and the knocking plate and the hitting plate are located on the same horizontal line.

[0018] By adopting the above technical scheme, when the rotating rod drives the hitting plate to rotate and collide with the knocking plate, the reset spring will be subjected to external force through the rotating rod until the hitting plate is separated from the knocking plate, and at this time, the reset spring will drive the knocking plate to reset through the rotating rod.

[0019] The present application has the following beneficial effects:

[0020] 1. By arranging the dust collecting cover and the rotating rod, the debris generated during the operation of the drill bit can enter the interior of the dust collecting cover through the surface holes of the dust collecting cover, so that the debris is prevented from accumulating in the working holes of the drill bit and causing abrasion on the surface of the drill bit, and meanwhile, the output shaft can drive the rotating rod to rotate when the output shaft rotates, so that the debris stuck in the surface holes of the dust collecting cover can be broken, thereby ensuring the flow effect of the debris and solving the problem that the existing drill tool can cause abrasion on the surface of the drill bit during operation.

[0021] 2. By setting up a striking plate and a hitting plate, when the rotating rod rotates, it will drive the hitting plate to rotate. When the hitting plate rotates, it will collide with the striking plate. The impact force generated by the collision will be transmitted to the inside of the dust collection hood, causing the debris stuck on the surface of the dust collection hood to separate from the dust collection hood, thus preventing the debris from clogging the surface of the dust collection hood. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of a hydraulic down-the-hole drill provided by an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of a hydraulic down-the-hole drill provided by an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of a dust collection hood for a hydraulic down-the-hole drill bit provided by an embodiment of this utility model;

[0026] Figure 4 This is a utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0027] Figure 5 This is a schematic diagram of the internal structure of a hydraulic down-the-hole drill drive ring provided by an embodiment of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of an auxiliary component for a hydraulic down-the-hole drill provided by an embodiment of this utility model.

[0029] In the diagram: 1. Output shaft; 2. Slag discharge pipe; 3. Drill bit; 4. Dust collection assembly; 401. Dust collection hood; 402. Drive ring; 403. Connecting rod; 404. Rotating rod; 405. Protrusion; 406. Groove; 5. Auxiliary assembly; 501. Housing; 502. Rotating rod; 503. Return spring; 504. Striking plate; 505. Limiting plate; 506. Impact plate. Detailed Implementation

[0030] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment. Obviously, the described embodiment is part of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0031] Referring to Figures 1-6 A hydraulic down-the-hole drill comprises an output shaft 1, a slag discharge pipe 2 and a drill bit 3, the slag discharge pipe 2 is arranged outside the output shaft 1, the drill bit 3 is installed at the bottom end of the output shaft 1, the outer wall of the output shaft 1 is provided with a dust collection assembly 4, and the inside of the dust collection assembly 4 is provided with an auxiliary assembly 5.

[0032] The dust collection assembly 4 comprises a dust collection cover 401, a driving ring 402, a connecting rod 403, a rotating rod 404, a protruding block 405 and a groove 406, the dust collection cover 401 is installed at the top of the drill bit 3, the outer wall of the dust collection cover 401 is uniformly distributed with holes, the driving ring 402 is installed on the outer wall of the output shaft 1, the driving ring 402 is located on the outer wall of the dust collection cover 401 and is in sliding connection with the outer wall of the dust collection cover 401, the driving ring 402 can rotate on the surface of the dust collection cover 401, the connecting rod 403 is fixedly connected to the outer wall of the driving ring 402, the rotating rod 404 is arranged on the inner wall of the dust collection cover 401, one end of the connecting rod 403 away from the driving ring 402 is fixedly connected to the outer wall of the rotating rod 404, the outer wall of the rotating rod 404 is in rotary connection with the inner wall of the dust collection cover 401, when the driving ring 402 rotates, the rotating rod 404 can be driven by the connecting rod 403 to rotate in the inside of the dust collection cover 401, the protruding block 405 is fixedly connected to the outer wall of the output shaft 1, the groove 406 is formed in the inside of the driving ring 402, the inner diameter length of the groove 406 is matched with the outer diameter length of the protruding block 405, the inner diameter height of the groove 406 is greater than the outer diameter height of the protruding block 405, and the outer wall of the protruding block 405 is in sliding connection with the inner wall of the groove 406, the protruding block 405 can slide in the inside of the groove 406, when the output shaft 1 drives the protruding block 405 to rotate, the driving ring 402 can be driven by the groove 406 to rotate.

[0033] By arranging the dust collection cover 401 and the rotating rod 404, the debris generated in the operation process of the drill bit 3 can enter the inside of the dust collection cover 401 through the holes on the surface of the dust collection cover 401, so that the debris is prevented from accumulating in the working holes of the drill bit 3 and causing abrasion on the surface of the drill bit 3, and meanwhile, the output shaft 1 can drive the rotating rod 404 to rotate when rotating, so that the debris stuck in the holes on the surface of the dust collection cover 401 can be broken, thereby ensuring the flow effect of the debris and solving the problem that the existing drill can cause abrasion on the surface of the drill bit 3 due to a large amount of debris in the operation process.

[0034] The auxiliary assembly 5 comprises a shell 501, a rotating rod 502, a reset spring 503, a knocking plate 504, a limiting plate 505 and a hitting plate 506, the shell 501 is fixedly connected to the inner wall top of the dust collecting cover 401, the rotating rod 502 is installed at the bottom of the shell 501, the top end of the rotating rod 502 penetrates through the bottom of the shell 501 and extends to the inside of the shell 501, the outer wall of the rotating rod 502 is rotationally connected with the penetrated inner wall of the shell 501, the rotating rod 502 can rotate in the inside of the shell 501, the reset spring 503 is arranged in the inside of the shell 501, the top and bottom of the reset spring 503 are fixedly connected with the inner wall top of the shell 501 and the top of the rotating rod 502 respectively, the knocking plate 504 is fixedly connected to the bottom end of the rotating rod 502, the limiting plate 505 is fixedly connected to the bottom of the shell 501, the hitting plate 506 is fixedly connected to the top end of the rotating rod 404, the knocking plate 504 and the hitting plate 506 are located on the same horizontal line, when the rotating rod 404 drives the hitting plate 506 to rotate and collide with the knocking plate 504, an external force is applied to the reset spring 503 through the rotating rod 502, until the hitting plate 506 is separated from the knocking plate 504, at this time, the reset spring 503 drives the knocking plate 504 to reset through the rotating rod 502.

[0035] By arranging the knocking plate 504 and the hitting plate 506, when the rotating rod 404 rotates, the hitting plate 506 is driven to rotate, the hitting plate 506 collides with the knocking plate 504 when rotating, the impact force generated by the collision is transmitted to the inside of the dust collecting cover 401, so that the debris clamped on the surface of the dust collecting cover 401 is separated from the dust collecting cover 401, and the surface of the dust collecting cover 401 is prevented from being blocked by the debris.

[0036] The working principle of the hydraulic down-the-hole drill is as follows: an external driving source drives the drill bit 3 to work through the output shaft 1, when the output shaft 1 rotates, the driving ring 402 is driven to rotate through the convex block 405 and the concave groove 406, so that the connecting rod 403 drives the rotating rod 404 to rotate through the driving ring 402, at this time, the debris clamped in the hole on the surface of the dust collecting cover 401 is broken by the rotating rod 404, and is discharged through the discharge pipe 2 under the action of the compressed air in the dust collecting cover 401.

[0037] The preferred embodiments of the utility model are described above only, and are not used for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A hydraulic down-the-hole drill comprising an output shaft (1), a discharge pipe (2) arranged outside the output shaft (1), and a drill bit (3) mounted to the bottom end of the output shaft (1), characterized in that: The outer wall of the output shaft (1) is provided with a dust collection assembly (4), and the inside of the dust collection assembly (4) is provided with an auxiliary assembly (5); The dust collection assembly (4) comprises a dust collection cover (401), a driving ring (402), a connecting rod (403), a rotating rod (404), a protruding block (405) and a groove (406), the dust collection cover (401) is installed at the top of the drill bit (3), the driving ring (402) is installed on the outer wall of the output shaft (1), the connecting rod (403) is fixedly connected to the outer wall of the driving ring (402), the rotating rod (404) is arranged on the inner wall of the dust collection cover (401), the protruding block (405) is fixedly connected to the outer wall of the output shaft (1), and the groove (406) is arranged in the inside of the driving ring (402).

2. A hydraulic down-the-hole drill according to claim 1, characterized in that: The outer wall of the dust collection cover (401) is uniformly provided with holes, the driving ring (402) is located on the outer wall of the dust collection cover (401) and is in sliding connection with the outer wall of the dust collection cover (401).

3. A hydraulic down-the-hole drill according to claim 2, characterized in that: The outer wall of the rotating rod (404) is in rotary connection with the inner wall of the dust collection cover (401).

4. A hydraulic down-the-hole drill according to claim 3, characterized in that: The inner diameter length of the groove (406) is matched with the outer diameter length of the protruding block (405), the inner diameter height of the groove (406) is greater than the outer diameter height of the protruding block (405), and the outer wall of the protruding block (405) is in sliding connection with the inner wall of the groove (406).

5. The hydraulic down-the-hole drill according to claim 1, characterized in that: The auxiliary assembly (5) comprises a shell (501), a rotating rod (502), a reset spring (503), a knocking plate (504), a limiting plate (505) and a hitting plate (506), the shell (501) is fixedly connected to the top of the inner wall of the dust collection cover (401), the rotating rod (502) is installed at the bottom of the shell (501), the reset spring (503) is arranged in the inside of the shell (501), the knocking plate (504) is fixedly connected to the bottom end of the rotating rod (502), the limiting plate (505) is fixedly connected to the bottom of the shell (501), and the hitting plate (506) is fixedly connected to the top end of the rotating rod (404).

6. A hydraulic down-the-hole drill according to claim 5, characterized in that: The top end of the rotating rod (502) penetrates through the bottom of the shell (501) and extends into the inside of the shell (501), and the outer wall of the rotating rod (502) is in rotary connection with the penetrated inner wall of the shell (501).

7. A hydraulic down-the-hole drill according to claim 6, characterized in that: The top and bottom of the reset spring (503) are fixedly connected to the top of the inner wall of the shell (501) and the top of the rotating rod (502) respectively, and the knocking plate (504) and the hitting plate (506) are located on the same horizontal line.

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