Self-adaptive high-efficiency drilling bucket

Abstract

The invention relates to the field of drilling buckets, and discloses a self-adaptive high-efficiency drilling bucket. A stress chassis is welded to the inner surface of the lower end of a main stress pipe, the lower surface of a connecting rod is movably sleeved with a self-adaptive sleeve, a reinforcing rod is welded to the outer surface of the end, away from the self-adaptive sleeve, of an external expansion cross beam, a stress plate is welded to the outer surface of the external expansion cross beam, and an external expansion plate is welded to the outer surface of the stress plate. A stress outer pipe is welded to the lower surface of the self-adaptive sleeve, a stress spring is arranged on the outer surface of the supporting column, the fixing nail shrinks inwards, the supporting column extrudes the stress spring into a whole, then the stress outer pipe and the self-adaptive sleeve move upwards, and the external expansion plate is expanded outwards in the inclined direction by the movable shaft corresponding to the lower portion of the external expansion beam. Under the condition that the fixing nails, the drilling bucket shell and the cutting strips can drill holes, the movable cutting strips and the external expansion plate expand the excavation range according to actual conditions under the overall action of soil and the power of the rotary excavation drill rod.

Description

Technical Field

[0001] The invention belongs to the technical field of drilling buckets, and in particular relates to an adaptive high-efficiency drilling bucket. Background Art

[0002] The rotary drill bucket is a commonly used equipment in construction, mainly used for drilling and extracting soil or rock. Its main structure includes a barrel body connected to the square head warehouse, internal soluble slag, a movable bottom door, and a connecting rod door opening mechanism.

[0003] The rotary drill bucket is cylindrical and tends to roll on the ground due to its shape, which may cause instability during construction. Due to the large gravity of the drill bucket, workers cannot effectively assist in fixing it during operation, which increases safety hazards. In addition, mechanical connection becomes relatively difficult, requiring more care during installation and removal to ensure the safety and stability of the equipment. This design challenge requires additional measures to ensure the stability and safety of the operation when using the rotary drill bucket, thereby improving construction efficiency and reducing potential risks.

[0004] Traditional drill buckets usually adopt an integrated design, which may face some challenges during the drilling process. When the drill bucket rubs in hard soil, the hardness and density changes of the soil will exert additional pressure on the drill bucket, resulting in reduced drilling efficiency. In this case, the drill bucket may get stuck or generate excessive friction, which will lead to a series of unexpected situations, such as twisting or even breaking of the drill rod. In addition, the square head end of the rotary drilling rod is prone to deformation when it is subjected to excessive load, which not only affects the accuracy of drilling, but also may cause damage to the equipment, increasing maintenance costs and construction risks. Summary of the invention

[0005] The object of the present invention is to provide an adaptive high-efficiency drilling bucket in order to solve the above-mentioned problems.

[0006] The technical solution adopted by the present invention is as follows: an adaptive high-efficiency drilling bucket, comprising a main force-bearing tube, a force-bearing chassis welded to the inner surface of the lower end of the main force-bearing tube, a connecting rod welded to the lower surface of the center of the force-bearing chassis, an adaptive sleeve movably sleeved on the lower surface of the connecting rod, an outward-expanded beam movably connected to the outer surface of the adaptive sleeve, a reinforcing rod welded to the outer surface of the outward-expanded beam away from the adaptive sleeve, a force plate welded to the outer surface of the outward-expanded beam, an outward-expanded plate welded to the outer surface of the force plate, a force-bearing outer tube welded to the lower surface of the adaptive sleeve, a support column movably sleeved on the inner surface of the force-bearing outer tube, and a stress spring arranged on the outer surface of the support column.

[0007] By adopting the above technical scheme, in the early stage of the rotary drilling rod, the whole work is done on the fixed nail, the drill bucket shell and the cutting strip, and then the drilling is continuously rotated. When the drilling is stable, the fixed nail shrinks inward, and the radius of the upper conical column and the lower conical column is small to large to squeeze the stress strip to move the movable cutting strip outward, thereby increasing the drilling position and thus increasing the efficiency. At the same time, it is judged whether the upper end expansion plate can be expanded outward. The fixed nail shrinks inward, and the support column squeezes the stress spring into one body, and then the stress outer tube and the adaptive sleeve move up, and the corresponding expansion beam is at the bottom of the active axis to expand the expansion plate obliquely, and then the fixed nail, the drill bucket shell and the cutting strip can be drilled. Under the overall action of the soil and the rotary drilling rod power, the movable cutting strip and the expansion plate expand the excavation range according to the actual situation, increase the drilling efficiency, and achieve the effect of adaptive action. The main stress tube provides a stable position for the equipment to drill holes, and the reinforcing rod and the stress plate ensure the stability of the expansion plate under pressure at the drill bucket shell.

[0008] In a preferred embodiment, an upper conical column is welded to the lower surface of the stress spring, and a lower conical column is welded to the lower surface of the upper conical column.

[0009] By adopting the above technical solution, the upper conical column and the lower conical column respectively adopt conical structures, which facilitates the extension and retraction of the movable cutting strip under force.

[0010] In a preferred embodiment, a fixing nail is welded to the lower surface of the lower conical column, and a supporting ring is movably sleeved on the outer surface of the upper end of the fixing nail.

[0011] By adopting the above technical solution, the radius of the fixing nail gradually decreases from the middle to the upper and lower sides, and gradually becomes a cone at the lower end, which increases the pressure, facilitates the stability of the operation and the quality of the drilling, and the support ring facilitates the support of the drill bucket shell and the stability of the fixation.

[0012] In a preferred embodiment, a drill bucket shell is welded to the upper surface of the support ring, and a cutting strip is welded to the outer surface of the drill bucket shell.

[0013] By adopting the above technical solution, the drill bucket shell facilitates the fixing of the cutting strip for drilling, and also facilitates the placement of the external expansion plate and the movable cutting strip, so that the drilling is performed better as a whole.

[0014] In a preferred embodiment, a movable cutting strip is movably inserted into the outer surface of the drill bucket shell, a stress strip is welded to the outer surface of the movable cutting strip, and the outer expansion plate is correspondingly inserted into the inner surface of the drill bucket shell.

[0015] By adopting the above technical solution, the fixing pins are retracted inwards, and the radii of the upper conical column and the lower conical column are small to large to squeeze the stress strip to move the movable cutting strip outwards, increase the drilling position, and thus increase the efficiency, while judging whether the upper end expansion plate can be expanded outwards.

[0016] In a preferred embodiment, a sleeve is welded to the lower surface of the main load-bearing tube, an auxiliary tray is movably connected to the inner surface of the sleeve, and an oblique gradient ring is welded to the middle lower surface of the auxiliary tray.

[0017] By adopting the above technical solution, the rotation of the main force-bearing tube drives the overall rotation below. After the force-bearing chassis rotates and the corresponding auxiliary tray is consistent up and down, one side of each blade of the force-bearing chassis is stuck in the auxiliary tray and rotates synchronously. When it is necessary to take out the excess soil, it is lifted up for a while and rotated in the opposite direction. The auxiliary tray does not move under the friction of the external soil. The force-bearing chassis rotates to contact with the adjacent blades of the auxiliary tray and get stuck at the lower end, thereby supporting the soil and lifting it out as a whole. When the outward expansion plate expands outward, the gap generated by the adaptive sleeve and the upper end of the outward expansion beam is stabilized by inserting an oblique gradient ring.

[0018] In a preferred embodiment, a main load-bearing plate is welded to the inner surface of the upper end of the main load-bearing tube, and a square sleeve is welded to the main load-bearing plate away from the outer surface of the main load-bearing tube.

[0019] By adopting the above technical solution, the main load-bearing plate and the square casing are consistent with the traditional drill bucket, providing a position for the square head connection of the rotary drilling drill pipe, and at the same time providing a stable load-bearing position for rotary drilling.

[0020] In a preferred embodiment, a drill bucket casing is movably sleeved on the outer surface of the main force-bearing tube, and a lower cutting plate is welded on the lower surface of the drill bucket casing.

[0021] By adopting the above technical solution, the drill bucket casing is sleeved on the main load-bearing pipe, and the internal groove limits the front end of the drill bucket casing to sink to be flush with the support ring, and the whole is pressed down to facilitate drilling. When the lower cutting plate rotates with the side oblique bar to drill, it provides better pressure, facilitates force, and facilitates drilling.

[0022] In a preferred embodiment, a side oblique strip is welded on the outer surface of the drill bucket casing, and a stabilizing strip is welded on the outer surface of the drill bucket casing.

[0023] By adopting the above technical solution, the side inclined bar provides a stable transverse groove when the equipment is drilling, ensuring the stability of the drilling, and one end of the stabilizing bar contacts the ground for easy placement.

[0024] In a preferred embodiment, the outer surface of the square casing is provided with a fixing hole, and the upper surface of the drill bucket casing is provided with a stress-bearing groove.

[0025] By adopting the above technical solution, the fixing hole facilitates the fixation of the square head of the rotary drilling drill rod, and the force-bearing groove facilitates the insertion of the main force-bearing plate, so that the whole can be rotated for drilling.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] 1. In the early stage of the rotary drilling rod, the whole work is done on the fixed nail, the drill bucket shell and the cutting strip, and then the hole is continuously rotated. When the drilling is stable, the fixed nail shrinks inward, and the radius of the upper conical column and the lower conical column is small to large to squeeze the stress strip to move the movable cutting strip outward, increase the drilling position, and thus increase the efficiency. At the same time, it is judged whether the upper end expansion plate can be expanded outward. The fixed nail shrinks inward, and the support column squeezes the stress spring into one, and then the stressed outer tube and the adaptive sleeve move up, and the corresponding expansion beam expands the expansion plate obliquely at the lower active axis, and then the fixed nail, the drill bucket shell and the cutting strip can be used for drilling. Under the overall action of the soil and the power of the rotary drilling rod, the movable cutting strip and the expansion plate expand the excavation range according to the actual situation, increase the drilling efficiency, and achieve the effect of adaptive action;

[0028] Second, the cutting strips and movable cutting strips at the lower end are used to loosen the soil when the soil density is high in the early stage, and the outer expansion plate at the upper end is used to quickly expand and cut, and then the side inclined strips and stabilizing strips are used to squeeze the soil. Through the analysis of different situations, different contact operations are carried out to increase the efficiency of the drill bucket;

[0029] 3. One end of the stabilizing bar touches the ground, which is convenient for placement. When the square head of the rotary drilling rod is adjusted, the lower cutting plate assists in force, which is convenient for stabilization. At the same time, when the main force-bearing pipe and the drill bucket casing are connected, the drill bucket casing sinks to ensure stability, avoiding the traditional completely cylindrical drill bucket, which causes the mechanical operation connection to need to constantly adjust the access position, which is time-consuming and labor-intensive.

[0030] 4. The lower end adopts a tapered design to facilitate drilling. The equipment operation process is basically the same as the traditional drill bucket. There is no need for unnecessary learning and instructions, which is more convenient for construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a front view of the overall appearance of the device of the present invention;

[0032] Figure 2 It is a schematic diagram of the bottom of the overall appearance of the device in the present invention;

[0033] Figure 3 This is a disassembled diagram of the overall structure of the device in the present invention;

[0034] Figure 4 This is a schematic diagram of the appearance of the drill bucket casing of the equipment in the present invention;

[0035] Figure 5 It is a schematic diagram of the internal appearance of the device in the present invention;

[0036] Figure 6 A top view of the adaptive drilling bucket structure of the device in the present invention;

[0037] Figure 7It is an external side view of the adaptive drilling bucket structure of the equipment in the present invention.

[0038] Markings in the figure: 1. Main load-bearing tube; 2. Load-bearing chassis; 3. Connecting rod; 4. Adaptive sleeve; 5. Outward expansion beam; 6. Reinforcement rod; 7. Load-bearing plate; 8. Outward expansion plate; 9. Load-bearing outer tube; 10. Support column; 11. Stress spring; 12. Upper conical column; 13. Lower conical column; 14. Support ring; 15. Fixing nail; 16. Drill bucket shell; 17. Cutting strip; 18. Movable cutting strip; 19. Load-bearing strip; 20. Casing; 21. Auxiliary tray; 22. Oblique gradient sleeve; 23. Main load-bearing plate; 24. Square casing; 25. Drill bucket casing; 26. Lower cutting plate; 27. Side oblique strip; 28. Stabilizing strip; 29. ​​Load-bearing groove; 30. Fixing hole. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example:

[0041] Reference Figure 1-7 A self-adaptive high-efficiency drilling bucket comprises a main force-bearing tube 1, a force-bearing chassis 2 is welded to the inner surface of the lower end of the main force-bearing tube 1, a connecting rod 3 is welded to the lower surface of the center of the force-bearing chassis 2, an adaptive sleeve 4 is movably sleeved on the lower surface of the connecting rod 3, an outward-expanding cross beam 5 is movably connected to the outer surface of the adaptive sleeve 4, a reinforcing rod 6 is welded to the outer surface of the outward-expanding cross beam 5 away from the adaptive sleeve 4, a force-bearing plate 7 is welded to the outer surface of the outward-expanding cross beam 5, an outward-expanding plate 8 is welded to the outer surface of the force-bearing plate 7, a force-bearing outer tube 9 is welded to the lower surface of the adaptive sleeve 4, a support column 10 is movably sleeved on the inner surface of the force-bearing outer tube 9, and a stress spring 11 is arranged on the outer surface of the support column 10.

[0042] In the early stage of the rotary drilling drill rod, the fixed nail 15, the drill bucket shell 16, and the cutting strip 17 are worked on, and then the drilling is continuously rotated. When the drilling is stable, the fixed nail 15 shrinks inward, and the radius of the upper conical column 12 and the lower conical column 13 is small to large to squeeze the stress strip 19 to move the active cutting strip 18 outward, increase the drilling position, and thus increase the efficiency. At the same time, it is determined whether the upper end expansion plate 8 can be expanded outward. The fixed nail 15 shrinks inward, the support column 10 squeezes the stress spring 11 into one, and then the stress outer tube 9 and the adaptive When the sleeve 4 moves upward, the corresponding outward expansion beam 5 expands the outward expansion plate 8 obliquely at the movable axis below, so that the fixing nail 15, the drill bucket shell 16, and the cutting strip 17 can drill holes. According to the soil and the overall effect of the rotary drilling drill rod power, the movable cutting strip 18 and the outward expansion plate 8 expand the excavation range according to the actual situation, increase the drilling efficiency, and achieve an adaptive effect. The main force-bearing pipe 1 provides a stable position for the equipment to drill holes, and the reinforcing rod 6 and the force-bearing plate 7 ensure the stability of the outward expansion plate 8 pressed down at the drill bucket shell 16.

[0043] Reference Figure 1-7 An upper conical column 12 is welded to the lower surface of the stress spring 11 , and a lower conical column 13 is welded to the lower surface of the upper conical column 12 .

[0044] The upper conical column 12 and the lower conical column 13 adopt conical structures to facilitate the expansion and contraction of the movable cutting strip 18 under force.

[0045] Reference Figure 1-7 A fixing nail 15 is welded on the lower surface of the lower conical column 13, and a supporting ring 14 is movably sleeved on the outer surface of the upper end of the fixing nail 15.

[0046] The radius of the fixing nail 15 gradually decreases from the middle to the upper and lower sides, and gradually becomes a cone at the lower end, which increases the pressure, facilitates the operation stability and drilling quality, and the support ring 14 facilitates the support of the drill bucket shell 16 and the stability of the fixation.

[0047] Reference Figure 1-7 A drill bucket shell 16 is welded to the upper surface of the support ring 14 , and a cutting strip 17 is welded to the outer surface of the drill bucket shell 16 .

[0048] The drill bucket shell 16 facilitates the fixing of the cutting strip 17 for drilling, and also facilitates the placement of the outer expansion plate 8 and the movable cutting strip 18, so that the drilling can be performed better as a whole.

[0049] Reference Figure 1-7 A movable cutting strip 18 is movably inserted into the outer surface of the drill bucket shell 16 , a stress strip 19 is welded to the outer surface of the movable cutting strip 18 , and the outer expansion plate 8 is correspondingly inserted into the inner surface of the drill bucket shell 16 .

[0050] The fixing nail 15 shrinks inwards, and the radius of the upper conical column 12 and the lower conical column 13 increases from small to large, squeezing the stress strip 19 to move the movable cutting strip 18 outwards, increasing the drilling position, thereby increasing the efficiency, and at the same time judging whether the upper end expansion plate 8 can be expanded outwards.

[0051] Reference Figure 1-3 A sleeve 20 is welded on the lower surface of the main load-bearing tube 1 , an auxiliary tray 21 is movably connected to the inner surface of the sleeve 20 , and an oblique gradient collar 22 is welded on the middle lower surface of the auxiliary tray 21 .

[0052] The rotation of the main force-bearing tube 1 drives the overall rotation below. After the force-bearing chassis 2 rotates and corresponds to the auxiliary tray 21, each blade of the force-bearing chassis 2 is stuck in the auxiliary tray 21 and rotates synchronously. When it is necessary to take out the excess soil, it is lifted up for a while and rotated in the opposite direction. The auxiliary tray 21 does not move under the friction of the external soil. The force-bearing chassis 2 rotates to contact the adjacent blades of the auxiliary tray 21 and get stuck at the lower end, thereby supporting the soil and lifting it out as a whole. When the outward expansion plate 8 expands outward, the gap generated by the adaptive sleeve 4 and the upper end of the outward expansion beam 5 is stabilized by inserting the oblique gradient ring 22.

[0053] Reference Figure 1-3 A main load-bearing plate 23 is welded on the inner surface of the upper end of the main load-bearing tube 1 , and a square sleeve 24 is welded on the main load-bearing plate 23 away from the outer surface of the main load-bearing tube 1 .

[0054] The main load-bearing plate 23 and the square casing 24 are consistent with the traditional drill bucket, providing a position for the connection of the square head of the rotary drilling drill pipe and providing a stable load-bearing position for rotary drilling.

[0055] Reference Figure 1-3 A drill bucket casing 25 is movably sleeved on the outer surface of the main load-bearing pipe 1 , and a lower cutting plate 26 is welded on the lower surface of the drill bucket casing 25 .

[0056] The drill bucket casing 25 is sleeved on the main force-bearing pipe 1, and the internal groove limits the front end of the drill bucket casing 25 to sink to be flush with the support ring 14, and the whole is pressed down to facilitate drilling. When the lower cutting plate 26 rotates with the side oblique bar 27 to drill, it provides better pressure, facilitates force, and facilitates drilling.

[0057] Reference Figure 1-3 A side oblique strip 27 is welded on the outer surface of the drill bucket casing 25 , and a stabilizing strip 28 is welded on the outer surface of the drill bucket casing 25 .

[0058] The side oblique bar 27 provides a stable transverse groove when the equipment is drilling, ensuring the stability of the drilling. One end of the stabilizing bar 28 contacts the ground for easy placement.

[0059] Reference Figure 1-3 A fixing hole 30 is provided on the outer surface of the square sleeve 24 , and a stress bearing groove 29 is provided on the upper surface of the drill bucket sleeve 25 .

[0060] The fixing hole 30 facilitates the fixing of the square head of the rotary drilling drill rod, and the force bearing groove 29 facilitates the main force bearing plate 23 to be inserted, so that the whole can be rotated for drilling.

[0061] The implementation principle of an adaptive high-efficiency drilling bucket embodiment of the present invention is:

[0062] The drill bucket is placed on the ground, and one end of the stabilizing bar 28 contacts the ground for easy placement. When the square head of the rotary drilling rod is adjusted to the position, the cutting plate 26 assists in force bearing, which is convenient for stabilization. At the same time, the main force-bearing pipe 1 and the drill bucket casing 25 are connected, and the internal notch limits the front end of the drill bucket casing 25 to sink until it can be flush with the support ring 14 to ensure stability. After the square head of the rotary drilling rod is fixed to the square casing 24, the square casing 24 is fixed and pressed down under strong pressure. The rotation of the main force-bearing pipe 1 drives the overall rotation below. After the force-bearing chassis 2 rotates and the corresponding auxiliary tray 21 is consistent up and down, the force-bearing bottom One side of each blade of the disk 2 is stuck in the auxiliary tray 21 and rotates synchronously. In the early stage of the rotary drilling drill rod, the fixed nail 15, the drill bucket shell 16, and the cutting strip 17 are worked, and then the drilling is continuously rotated. When the drilling is stable, the fixed nail 15 shrinks inward, and the radius of the upper conical column 12 and the lower conical column 13 is small to large to squeeze the stress strip 19 to move the active cutting strip 18 outward, increase the drilling position, and thus increase the efficiency. At the same time, it is determined whether the upper end expansion plate 8 can be expanded outward. The fixed nail 15 shrinks inward, the support column 10 squeezes the stress spring 11 into one body, and then the stress outer tube 9 , the adaptive sleeve 4 moves up, and the corresponding outward expansion beam 5 expands the outward expansion plate 8 obliquely at the lower movable axis, so that the fixing nail 15, the drill bucket shell 16, and the cutting strip 17 can drill holes. Under the overall action of the soil and the power of the rotary drilling drill rod, the movable cutting strip 18 and the outward expansion plate 8 expand the excavation range according to the actual situation, increase the drilling efficiency, and achieve the adaptive effect. The gap generated at the upper end of the adaptive sleeve 4 and the outward expansion beam 5 is stabilized by the oblique gradient ring 22 inserted to ensure the effect. The drill bucket continues to press down, and the main force plate 23 is stuck in the force groove After 29, the side oblique bar 27 rotates to continue drilling. When it is necessary to take out the excess soil, it is lifted up for a while and rotated in the opposite direction. The auxiliary tray 21 does not move under the external soil friction. The force-bearing chassis 2 rotates to contact the adjacent blades of the auxiliary tray 21 and get stuck at the lower end, thereby supporting the soil and lifting it out as a whole. When the side oblique bar 27 rotates to drill, the lower cutting plate 26 provides better pressure, facilitates force, and facilitates drilling. The side oblique bar 27 provides a stable transverse groove for the equipment to drill holes, thereby ensuring the stability of the holes. One end of the stabilizing bar 28 contacts the ground for easy placement.

[0063] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adaptive high-efficiency drilling bucket, comprising a main force-bearing tube (1), characterized in that: A load-bearing chassis (2) is welded to the inner surface of the lower end of the main load-bearing tube (1), a connecting rod (3) is welded to the central lower surface of the load-bearing chassis (2), an adaptive sleeve (4) is movably sleeved on the lower surface of the connecting rod (3), an outward-expanding cross beam (5) is movably connected to the outer surface of the adaptive sleeve (4), a reinforcing rod (6) is welded to the outer surface of the outward-expanding cross beam (5) away from the adaptive sleeve (4), a load-bearing plate (7) is welded to the outer surface of the outward-expanding cross beam (5), an outward-expanding plate (8) is welded to the outer surface of the load-bearing plate (7), a load-bearing outer tube (9) is welded to the lower surface of the adaptive sleeve (4), a support column (10) is movably sleeved on the inner surface of the load-bearing outer tube (9), and a stress spring (11) is arranged on the outer surface of the support column (10).

2. The adaptive high-efficiency drilling bucket according to claim 1, characterized in that: An upper conical column (12) is welded to the lower surface of the stress spring (11), and a lower conical column (13) is welded to the lower surface of the upper conical column (12).

3. An adaptive high-efficiency drilling bucket as claimed in claim 2, characterized in that: A fixing nail (15) is welded to the lower surface of the lower conical column (13), and a supporting ring (14) is movably sleeved on the outer surface of the upper end of the fixing nail (15).

4. The adaptive high-efficiency drilling bucket according to claim 3, characterized in that: A drill bucket shell (16) is welded to the upper surface of the support ring (14), and a cutting strip (17) is welded to the outer surface of the drill bucket shell (16).

5. The adaptive high-efficiency drilling bucket according to claim 4, characterized in that: A movable cutting strip (18) is movably inserted into the outer surface of the drill bucket shell (16), a stress-bearing strip (19) is welded to the outer surface of the movable cutting strip (18), and the outer expansion plate (8) is correspondingly inserted into the inner surface of the drill bucket shell (16).

6. The adaptive high-efficiency drilling bucket according to claim 1, characterized in that: A sleeve (20) is welded on the lower surface of the main force-bearing tube (1), an auxiliary tray (21) is movably connected to the inner surface of the sleeve (20), and an oblique gradient collar (22) is welded on the middle lower surface of the auxiliary tray (21).

7. The adaptive high-efficiency drilling bucket according to claim 1, characterized in that: A main load-bearing plate (23) is welded to the inner surface of the upper end of the main load-bearing tube (1), and a square sleeve (24) is welded to the outer surface of the main load-bearing plate (23) away from the main load-bearing tube (1).

8. The adaptive high-efficiency drilling bucket according to claim 1, characterized in that: The outer surface of the main force-bearing tube (1) is movably sleeved with a drill bucket sleeve (25), and the lower surface of the drill bucket sleeve (25) is welded with a lower cutting plate (26).

9. The adaptive high-efficiency drilling bucket according to claim 8, characterized in that: A side oblique strip (27) is welded on the outer surface of the drill bucket sleeve (25), and a stabilizing strip (28) is welded on the outer surface of the drill bucket sleeve (25).

10. The adaptive high-efficiency drilling bucket according to claim 8, characterized in that: The outer surface of the square sleeve (24) is provided with a fixing hole (30), and the upper surface of the drill bucket sleeve (25) is provided with a stress-bearing groove (29).

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