Axial impact oscillation screw drill

Abstract

The invention belongs to the technical field of screw drilling tools, and discloses an axial impact oscillation screw drilling tool which comprises an oscillation screw drilling tool body, a drill rod installed at the output end of the oscillation screw drilling tool body and a drill bit installed at the output end of the drill rod, and a limiting groove is formed in the side, close to the drill rod, of the oscillation screw drilling tool body. The outer side face of the drill rod is movably sleeved with a sleeve, a limiting guide rail is fixedly installed on the outer side face of the sleeve in a circumferential shape, and an elastic telescopic rod is installed on one side of the limiting guide rail. The power assembly, the adjusting assembly and the cooperation between the power assembly and the adjusting assembly and the protection cover plates are utilized, in the initial state, the multiple protection cover plates are all located on the outer side face of the drill bit, the drill bit is actively protected, the drill bit is automatically exposed only when work is needed, the whole process can be completed underground, and when the device does not reach the crushing position, the drill bit is not damaged. Abrasion is avoided, the abrasion process of the drill bit is effectively reduced, the overall service life is prolonged, and the machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of screw drill tools, and particularly relates to an axial impact oscillation screw drill tool. BACKGROUND

[0002] The axial impact oscillation screw drill tool is a special tool for drilling operations, and is commonly used in the exploration and exploitation of resources such as oil and natural gas. Its main feature is to increase the contact force between the drill bit and the stratum through axial impact and oscillation during drilling, thereby improving drilling efficiency, especially in hard rock layers or difficult-to-drill geological conditions. The oscillation function helps to improve energy transmission during drilling and enhance the cutting ability of the drill tool, adapting to different geological environments, especially in complex underground environments such as hard rock layers, dense sandstone and high-pressure strata. Through precise design, the axial impact oscillation screw drill tool not only improves operation efficiency, but also reduces operation failures and downtime, and reduces operation costs.

[0003] Conventional oscillation screw drill tools mainly drill rock layers through drill bits, but during the drilling process, when the drill tool does not reach the drilling position, the drill bit part of the drill tool is in a long-term exposed state, which can cause excessive contact between the drill bit of the drill tool and the rock layer, and thus unnecessary wear and tear. Therefore, how to reduce the wear and tear of the drill bit when it is not working is crucial.

[0004] Meanwhile, during the drilling process of the drill bit, some delayed fragments can adhere to the surface of the drill bit, and special tools are needed to clean the drill bit part before and after each use. The entire cleaning process is relatively cumbersome, and the self-cleaning of the drill bit part cannot be achieved, which affects the overall drilling efficiency. SUMMARY

[0005] The purpose of the present application is to provide an axial impact oscillation screw drill tool to solve the problems raised in the background.

[0006] In order to achieve the above object, the present application provides the following technical scheme: an axial impact oscillating screw drill includes an oscillating screw drill body, a drill rod installed at the output end of the oscillating screw drill body, and a drill bit installed at the output end of the drill rod, a limiting groove is formed on the side of the oscillating screw drill body close to the drill rod, a sleeve is movably sleeved on the outer side of the drill rod, a limiting guide rail is fixedly installed on the outer side of the sleeve in a circumferential shape, an elastic telescopic rod is installed on one side of the limiting guide rail, the other end of the elastic telescopic rod is connected with the drill bit, a protective cover plate is arranged on the outer side of the sleeve, a limiting column is installed at one end of the inner side of the protective cover plate, the protective cover plate is movably clamped between the limiting column and the limiting guide rail, the limiting column moves up and down relative to the limiting guide rail, an adjusting assembly is movably sleeved on the outer side of the drill rod behind the sleeve, the end of the adjusting assembly away from the oscillating screw drill body is connected with the limiting column, a power assembly is movably sleeved on the outer side of the drill rod close to the limiting groove, and the front end of the power assembly is connected with the adjusting assembly.

[0007] When the device is in the working state, the target rock stratum can be broken by the rotation of the drill rod and the rotation of the drill bit to complete the drilling operation.

[0008] When the device is in the initial state, the plurality of protective cover plates are located on the outer side of the drill bit to protect the side of the drill bit, and the device is in the protection state when not working.

[0009] As a further technical scheme of the present application, the power assembly includes a rotating ring, a limiting ring is fixedly installed on the side of the rotating ring close to the limiting groove, the rotating ring is movably clamped between the limiting ring and the limiting groove, and an operating handle is fixedly sleeved on the outer side of the rotating ring.

[0010] As a further technical scheme of the present application, oil storage pipes are installed at the upper and lower ends of the side of the rotating ring away from the rotating ring, a piston plate is movably sleeved in the inside of each oil storage pipe, a piston rod is fixedly installed at the end of each piston plate away from the limiting ring, and one end of the piston rod penetrates through one side of the oil storage pipe and is connected with the adjusting assembly.

[0011] As a further technical scheme of the present application, a limiting spring is movably sleeved on the outer side of the piston rod, and the left and right ends of the limiting spring are connected with one end of the piston plate and one end of the inner cavity of the oil storage pipe, respectively.

[0012] As a further technical scheme of the present application, hydraulic oil is filled in one end of the inner cavity of the oil storage pipe and one end of the piston plate, a temporary storage tank is installed at one end of the oil storage pipe, the input end of the temporary storage tank is communicated with the side of the outer side of the oil storage pipe close to the rotating ring, a micro oil pump is built in the temporary storage tank to suck the hydraulic oil in the inside of the oil storage pipe, and the temporary storage tank is not filled with hydraulic oil in the initial state.

[0013] When the drill bit needs to be exposed for rock breaking, the micro oil pumps inside the upper and lower temporary storage tanks are turned on, which generates negative pressure inside the oil storage pipe. This negative pressure draws hydraulic oil into the temporary storage tank, completing the hydraulic oil transfer process. At this time, the piston plate and piston rod move towards the rotating ring, and the limit spring is stretched, applying force to the adjustment component.

[0014] As a further technical solution of the present invention, the adjusting component includes a movable ring, the upper and lower ends of the movable ring near the limiting groove are connected to two piston rods, and the end of the movable ring away from the piston rod is fixedly mounted with a first fixing seat in a circumferential shape.

[0015] As a further technical solution of the present invention, the end of the first fixed seat away from the movable ring is movably connected to a connecting rod through a rotating shaft, and the end of the connecting rod away from the first fixed seat is movably connected to a second fixed seat through a rotating shaft. One end of the second fixed seat is connected to a limiting post.

[0016] When the movable ring moves towards the limiting groove under the action of the piston rod, the connecting rod will not deflect because the inner side of the protective cover plate is blocked by the outer side of the drill bit. The movable ring will then drive the casing to move towards the limiting groove, and drive the limiting guide rail and the protective cover plate on the outer side to move as a whole. The elastic telescopic rod will deform accordingly, and multiple protective covers will move away from the drill bit. When the protective cover plate is no longer above the drill bit, one end of the casing is limited by the protrusion on the vibrating screw drill body and cannot continue to move towards the limiting groove. At this time, the movable ring will continue to move towards the limiting groove.

[0017] Multiple connecting rods deflect in a direction that brings them closer together, and apply tension to the second fixed seat. At this time, multiple limiting posts are subjected to tension from the inside, and the multiple limiting posts are displaced relative to the limiting guide rail, which drives multiple protective cover plates to move closer together. The multiple protective cover plates then retract inward, completing the storage process. At this time, the drill bit can be used to break the rock strata. When not in use, the power component and the adjustment component drive the protective cover plates to automatically reset. At this time, multiple protective cover plates are located on the outer side of the drill bit, which can protect the outer side of the drill bit.

[0018] By utilizing the power and adjustment components and their cooperation with the protective cover plates, multiple protective cover plates are located on the outer side of the drill bit in the initial state, actively protecting the drill bit. The drill bit is automatically exposed only when work is required. The entire process can be completed downhole, so that no wear occurs when the device does not reach the breaking position, effectively reducing the wear process of the drill bit, improving the overall service life, and increasing processing efficiency.

[0019] As a further technical solution of the present invention, when the power component is in the initial state, the adjustment component is also in the initial state. At this time, all protective cover plates are on the outer side of the drill bit. The front end of the drill bit is provided with a top cover plate. A positioning rod is installed in a circumferential shape on the side of the top cover plate near the protective cover plate. When all the protective cover plates are located on the outer side of the drill bit, the top cover plate is movably engaged with the protective cover plate through the positioning rod.

[0020] When the device is in its initial state, i.e., when multiple protective covers are located on the outer side of the drill bit, the positioning rod on the top cover can be aligned with the corresponding position on the protective cover and engaged. At this time, the top cover can protect the front end of the drill bit. By rotating the operating handle, the power component can be rotated relative to the limiting groove. At this time, the corresponding adjusting component and casing rotate accordingly, ultimately causing multiple protective covers to shift relative to the drill bit, completing the self-cleaning process.

[0021] By reusing the coordination process of the power unit, adjustment unit, and protective cover, that is, through the device's reset process and the active rotation of the power unit, the protective cover rotates relative to the drill bit, allowing the drill bit to complete self-cleaning in a protected state. The entire self-cleaning process can be completed quickly before and after each use without the need for special tools, reducing preparation time and improving overall processing efficiency.

[0022] The beneficial effects of this invention are as follows:

[0023] (1) By utilizing the power assembly and adjustment assembly and their cooperation with the protective cover plate, the present invention enables multiple protective cover plates to be located on the outer side of the drill bit in the initial state, and to actively protect the drill bit. The drill bit is automatically exposed only when it is needed to work. The whole process can be completed downhole, so that the device will not be worn when it reaches the crushing position, effectively reducing the wear process of the drill bit, improving the overall service life, and improving the processing efficiency.

[0024] (2) The present invention reuses the cooperation process of the power component, the adjustment component and the protective cover plate. That is, through the reset process of the device and the active rotation of the power component, the protective cover plate is rotated relative to the drill bit, so that the drill bit can complete self-cleaning in the protective state. The entire self-cleaning process does not require special tools and can be completed quickly before and after each use, reducing preparation time and improving overall processing efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention with the top cover plate in a separated state;

[0026] Figure 2This is a separate schematic diagram of the oscillating screw drill body of the present invention;

[0027] Figure 3 This is a partial cross-sectional view of the power component structure of the present invention;

[0028] Figure 4 This is a schematic diagram showing the protective cover and top cover of the present invention in a mating state;

[0029] Figure 5 This is a schematic diagram illustrating the fit between the sleeve and the limiting guide rail structure of the present invention;

[0030] Figure 6 This is a separate schematic diagram of the adjustment component structure of the present invention.

[0031] In the diagram: 1. Vibrating screw drill body; 2. Drill rod; 3. Drill bit; 4. Limiting groove; 5. Power assembly; 501. Rotating ring; 502. Limiting ring; 503. Operating handle; 504. Temporary storage box; 505. Oil storage pipe; 506. Piston plate; 507. Piston rod; 508. Limiting spring; 6. Protective cover plate; 7. Top cover plate; 8. Positioning rod; 9. Limiting post; 10. Cleaning tank; 11. Casing; 12. Elastic telescopic rod; 13. Limiting guide rail; 14. Adjustment assembly; 141. Movable ring; 142. First fixed seat; 143. Second fixed seat; 144. Connecting rod. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1 to 6As shown in the embodiment of the present invention, an axial impact oscillating screw drill includes an oscillating screw drill body 1, a drill rod 2 installed at the output end of the oscillating screw drill body 1, and a drill bit 3 installed at the output end of the drill rod 2. A limiting groove 4 is formed on the side of the oscillating screw drill body 1 near the drill rod 2. A sleeve 11 is movably sleeved on the outer surface of the drill rod 2. A limiting guide rail 13 is fixedly installed on the outer surface of the sleeve 11 in a circumferential shape. An elastic telescopic rod 12 is installed on one side of the limiting guide rail 13. The other end of the elastic telescopic rod 12 is connected to the drill bit 3. The sleeve 1... The outer side of the drill rod 1 is provided with a protective cover plate 6. One end of the inner side of the protective cover plate 6 is equipped with a limiting post 9. The protective cover plate 6 is movably engaged with the limiting guide rail 13 through the limiting post 9. The limiting post 9 moves up and down relative to the limiting guide rail 13. The outer side of the drill rod 2 is movably sleeved with an adjustment component 14 located behind the casing 11. The end of the adjustment component 14 away from the vibrating screw drill body 1 is connected to the limiting post 9. The end of the outer side of the drill rod 2 near the limiting groove 4 is movably sleeved with a power component 5. The front end of the power component 5 is connected to the adjustment component 14.

[0034] When the device is in operation, the target rock formation can be broken by rotating the drill rod 2 and driving the drill bit 3 to rotate, thus completing the drilling operation.

[0035] When the device is in its initial state, multiple protective covers 6 are located on the outer side of the drill bit 3 to protect the side of the drill bit 3. At this time, the device is in a protective state when it is not in operation.

[0036] like Figure 1 and Figure 3 As shown, the power assembly 5 includes a rotating ring 501. A limiting ring 502 is fixedly installed on the side of the rotating ring 501 near the limiting groove 4. The rotating ring 501 is movably engaged with the limiting groove 4 through the limiting ring 502. An operating handle 503 is fixedly sleeved on the outer side of the rotating ring 501. Oil storage pipes 505 are installed at both the upper and lower ends of the side of the rotating ring 501 away from the rotating ring 501. A piston plate 506 is movably sleeved inside each oil storage pipe 505. A piston rod 507 is fixedly installed at the end of each piston plate 506 away from the limiting ring 502. One end of the piston rod 507 passes through one side of the oil storage pipe 505 and is connected to the adjustment assembly. The parts 14 are connected to each other. The outer side of the piston rod 507 is movably sleeved with a limit spring 508. The left and right ends of the limit spring 508 are respectively connected to one end of the piston plate 506 and one end of the inner cavity of the oil storage pipe 505. One end of the inner cavity of the oil storage pipe 505 and one end of the piston plate 506 are filled with hydraulic oil. A temporary storage box 504 is installed at one end of the oil storage pipe 505. The input end of the temporary storage box 504 is connected to the side of the outer side of the oil storage pipe 505 near the rotating ring 501. The temporary storage box 504 has a built-in micro oil pump for drawing hydraulic oil from the inside of the oil storage pipe 505. The temporary storage box 504 is not filled with hydraulic oil in the initial state.

[0037] When the drill bit 3 needs to be exposed for rock breaking, the micro oil pumps inside the upper and lower temporary storage tanks 504 are turned on, which generates negative pressure inside the oil storage pipe 505. At this time, the negative pressure can draw hydraulic oil into the temporary storage tank 504, completing the hydraulic oil transfer process. At this time, the piston plate 506 and piston rod 507 move towards the rotating ring 501. At this time, the limit spring 508 is stretched and applies force to the adjusting component 14.

[0038] like Figure 1 and Figure 6 As shown, the adjustment assembly 14 includes a movable ring 141. The upper and lower ends of the movable ring 141 near the limiting groove 4 are connected to two piston rods 507. The end of the movable ring 141 away from the piston rod 507 is circumferentially fixedly mounted with a first fixed seat 142. The end of the first fixed seat 142 away from the movable ring 141 is movably connected to a connecting rod 144 via a rotating shaft. The end of the connecting rod 144 away from the first fixed seat 142 is movably connected to a second fixed seat 143 via a rotating shaft. One end of the second fixed seat 143 is connected to the limiting post 9.

[0039] Example: When the movable ring 141 moves toward the direction of the limiting groove 4 under the action of the piston rod 507, the inner side of the protective cover plate 6 is blocked by the outer side of the drill bit 3, so the connecting rod 144 will not deflect. The movable ring 141 then moves the casing 11 toward the direction of the limiting groove 4, and moves the limiting guide rail 13 and the protective cover plate 6 on the outer side to move. The elastic telescopic rod 12 deforms accordingly. At this time, multiple protective covers 6 move away from the drill bit 3. When the protective cover plate 6 is no longer above the drill bit 3, one end of the casing 11 is limited by the protrusion on the body 1 of the oscillating screw drill tool, and cannot continue to move toward the direction of the limiting groove 4. At this time, the movable ring 141 continues to move toward the direction of the limiting groove 4.

[0040] Multiple connecting rods 144 deflect in a direction that moves closer to each other and apply tension to the second fixed seat 143. At this time, multiple limiting posts 9 are subjected to tension from the inside and move relative to the limiting guide rail 13. This causes multiple protective cover plates 6 to move closer to each other and retract inward, completing the storage process. At this time, the drill bit 3 can be used to break the rock layer. When not in use, the power component 5 and the adjustment component 14 drive the protective cover plates 6 to automatically reset. At this time, multiple protective cover plates 6 are located on the outer side of the drill bit 3, thus protecting the outer side of the drill bit 3.

[0041] By utilizing the power assembly 5 and the adjustment assembly 14, and their cooperation with the protective cover plate 6, multiple protective cover plates 6 are located on the outer side of the drill bit 3 in the initial state, actively protecting the drill bit 3. The drill bit 3 is automatically exposed only when work is required. The entire process can be completed downhole, so that no wear occurs when the device does not reach the breaking position, effectively reducing the wear process of the drill bit 3, improving the overall service life, and increasing processing efficiency.

[0042] like Figure 1 and Figure 4 As shown, when the power assembly 5 is in the initial state, the adjustment assembly 14 is also in the initial state. At this time, all the protective cover plates 6 are on the outer side of the drill bit 3. The front end of the drill bit 3 is provided with a top cover plate 7. The top cover plate 7 is circumferentially mounted with a positioning rod 8 on the side near the protective cover plate 6. When all the protective cover plates 6 are located on the outer side of the drill bit 3, the top cover plate 7 is movably engaged with the protective cover plate 6 through the positioning rod 8.

[0043] Example: When the device is in the initial state, that is, when multiple protective cover plates 6 are located on the outer side of the drill bit 3, the positioning rod 8 on the top cover plate 7 can be aligned with the corresponding position on the protective cover plate 6 and locked in place. At this time, the top cover plate 7 can protect the front end of the drill bit 3. By rotating the operating handle 503, the power component 5 can be rotated relative to the limiting groove 4. At this time, the corresponding adjusting component 14 and the sleeve 11 rotate accordingly, and finally drive the multiple protective cover plates 6 to move relative to the drill bit 3, completing the self-cleaning process.

[0044] By reusing the coordination process of the power component 5, the adjustment component 14, and the protective cover plate 6, that is, by resetting the device and actively rotating the power component 5, the protective cover plate 6 is rotated relative to the drill bit 3, so that the drill bit 3 can complete self-cleaning in a protected state. The entire self-cleaning process can be completed quickly before and after each use without the need for special tools, reducing preparation time and improving overall processing efficiency.

[0045] Working principle and usage process:

[0046] When the device is in operation, the target rock formation can be broken by rotating the drill rod 2 and driving the drill bit 3 to rotate, thus completing the drilling operation.

[0047] When the device is in its initial state, multiple protective covers 6 are located on the outer side of the drill bit 3 to protect the side of the drill bit 3. At this time, the device is in a protective state when it is not in operation.

[0048] When it is necessary to expose the drill bit 3 for rock breaking, the micro oil pumps inside the upper and lower temporary storage tanks 504 are turned on, which generates negative pressure inside the oil storage pipe 505. At this time, the negative pressure can draw hydraulic oil into the temporary storage tank 504, completing the hydraulic oil transfer process. At this time, the piston plate 506 and piston rod 507 move towards the rotating ring 501. At this time, the limit spring 508 is stretched and applies force to the adjusting component 14.

[0049] When the movable ring 141 moves toward the limiting groove 4 under the action of the piston rod 507, the connecting rod 144 will not deflect because the inner side of the protective cover plate 6 is blocked by the outer side of the drill bit 3. The movable ring 141 then drives the casing 11 to move toward the limiting groove 4, and drives the limiting guide rail 13 and the protective cover plate 6 on the outer side to move. The elastic telescopic rod 12 deforms accordingly. At this time, multiple protective covers 6 move away from the drill bit 3. When the protective cover plate 6 is no longer above the drill bit 3, one end of the casing 11 is limited by the protrusion on the vibrating screw drill body 1 and cannot continue to move toward the limiting groove 4. At this time, the movable ring 141 continues to move toward the limiting groove 4.

[0050] Multiple connecting rods 144 deflect in the direction of mutual approach and apply tension to the second fixed seat 143. At this time, multiple limiting posts 9 are subjected to tension from the inside and move relative to the limiting guide rail 13. This causes multiple protective cover plates 6 to move closer to each other and retract inward to complete the storage process. At this time, the drill bit 3 can be used to break the rock layer. When not in use, the power component 5 and the adjustment component 14 drive the protective cover plates 6 to automatically reset. At this time, multiple protective cover plates 6 are located on the outer side of the drill bit 3, which can protect the outer side of the drill bit 3.

[0051] When the device is in its initial state, i.e., when all the protective covers 6 are located on the outer side of the drill bit 3, the positioning rod 8 on the top cover 7 can be aligned with the corresponding position on the protective cover 6 and locked in place. At this time, the top cover 7 can protect the front end of the drill bit 3. By rotating the operating handle 503, the power component 5 can be rotated relative to the limiting groove 4. At this time, the corresponding adjusting component 14 and the sleeve 11 rotate accordingly, ultimately causing the multiple protective covers 6 to move relative to the drill bit 3, thus completing the self-cleaning process.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An axial impact oscillating screw drill, comprising an oscillating screw drill body (1), a drill rod (2) mounted on the output end of the oscillating screw drill body (1), and a drill bit (3) mounted on the output end of the drill rod (2), characterized in that: A limiting groove (4) is provided on the side of the oscillating screw drill body (1) near the drill rod (2). A sleeve (11) is movably sleeved on the outer side of the drill rod (2). A limiting guide rail (13) is fixedly installed on the outer side of the sleeve (11) in a circumferential shape. An elastic telescopic rod (12) is installed on one side of the limiting guide rail (13). The other end of the elastic telescopic rod (12) is connected to the drill bit (3). A protective cover plate (6) is provided on the outer side of the sleeve (11). A limiting post (9) is installed on one end of the inner side of the protective cover plate (6). The cover plate (6) is movably engaged with the limiting guide rail (13) through the limiting post (9). The limiting post (9) moves up and down relative to the limiting guide rail (13). The outer side of the drill rod (2) is movably sleeved with an adjustment component (14) located behind the casing (11). The end of the adjustment component (14) away from the vibrating screw drill body (1) is connected to the limiting post (9). The end of the outer side of the drill rod (2) near the limiting groove (4) is movably sleeved with a power component (5). The front end of the power component (5) is connected to the adjustment component (14).

2. The axial impact oscillating screw drill according to claim 1, characterized in that: The power assembly (5) includes a rotating ring (501), and a limiting ring (502) is fixedly installed on the side of the rotating ring (501) near the limiting groove (4). The rotating ring (501) is movably engaged with the limiting groove (4) through the limiting ring (502). An operating handle (503) is fixedly sleeved on the outer side of the rotating ring (501).

3. The axial impact oscillating screw drill according to claim 2, characterized in that: Oil storage pipes (505) are installed at both the upper and lower ends of the rotating ring (501) away from the rotating ring (501). A piston plate (506) is movably sleeved inside the oil storage pipe (505). A piston rod (507) is fixedly installed at the end of the piston plate (506) away from the limiting ring (502). One end of the piston rod (507) passes through one side of the oil storage pipe (505) and is connected to the adjusting component (14).

4. The axial impact oscillating screw drill according to claim 3, characterized in that: A limiting spring (508) is movably sleeved on the outer side of the piston rod (507), and the left and right ends of the limiting spring (508) are respectively connected to one end of the piston plate (506) and one end of the inner cavity of the oil reservoir (505).

5. The axial impact oscillating screw drill according to claim 4, characterized in that: One end of the inner cavity of the oil storage pipe (505) and one end of the piston plate (506) are filled with hydraulic oil. A temporary storage box (504) is installed at one end of the oil storage pipe (505). The input end of the temporary storage box (504) is connected to the side of the outer surface of the oil storage pipe (505) near the rotating ring (501). The temporary storage box (504) is equipped with a micro oil pump for drawing hydraulic oil from the inside of the oil storage pipe (505). The temporary storage box (504) is not filled with hydraulic oil in the initial state.

6. The axial impact oscillating screw drill according to claim 5, characterized in that: The adjustment assembly (14) includes a movable ring (141), the upper and lower ends of the movable ring (141) near the limiting groove (4) are connected to two piston rods (507), and the end of the movable ring (141) away from the piston rod (507) is circumferentially fixedly mounted with a first fixed seat (142).

7. An axial impact oscillating screw drill according to claim 6, characterized in that: The end of the first fixed seat (142) away from the movable ring (141) is movably connected to the connecting rod (144) via a rotating shaft. The end of the connecting rod (144) away from the first fixed seat (142) is movably connected to the second fixed seat (143) via a rotating shaft. One end of the second fixed seat (143) is connected to the limiting post (9).

8. An axial impact oscillating screw drill according to claim 1, characterized in that: When the power assembly (5) is in the initial state, the adjustment assembly (14) is also in the initial state. At this time, all the protective cover plates (6) are on the outer side of the drill bit (3). The front end of the drill bit (3) is provided with a top cover plate (7). The top cover plate (7) is circumferentially mounted with a positioning rod (8) on the side of the top cover plate (7) close to the protective cover plate (6). When all the protective cover plates (6) are located on the outer side of the drill bit (3), the top cover plate (7) is movably engaged with the protective cover plate (6) through the positioning rod (8).

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