Rotary excavating drill bit

Abstract

The invention relates to the technical field of engineering drilling, in particular to a rotary drilling bit. A rotary excavating drill bit comprises a rotary excavating drill bit body, the section, in the axial direction of the rotary excavating drill bit body, of the rotary excavating drill bit body is conical, two guide plates are arranged at the bottom of the rotary excavating drill bit body, and the two guide plates are symmetrically arranged with the axis of the rotary excavating drill bit body as the center. The guide plates enable the bottom of the rotary excavating drill bit body to be in an inward concave shape, the two guide plates enable the bottom of the rotary excavating drill bit body to form a triangular cutting opening, and cutting teeth are arranged on the guide plates. The waste pile cutting device has the following effects that one end of a waste pile can be accurately clamped by the triangular cutting opening, the waste pile can be effectively wrapped by the conical concave part, shaking of the waste pile in the cutting process is greatly reduced, the cutting process is more stable, the cutting precision is improved, the cutting speed is increased, and therefore the overall operation efficiency is improved; the cutting process is more stable, and the personal safety of constructors can be guaranteed while the abrasion probability of the rotary excavating drill bit body is reduced.

Description

Technical Field

[0001] This application relates to the technical field of engineering drilling, and in particular to a rotary drilling bit. Background Technology

[0002] Rotary drilling bits are a crucial tool in the field of foundation construction, playing an irreplaceable role in many basic construction projects such as building engineering and bridge engineering. With the rapid development of the social economy, the scale of infrastructure construction is constantly expanding, and the requirements for construction quality and efficiency are also getting higher and higher. The performance of rotary drilling bits is directly related to the effect of drilling and cutting operations, and thus affects the progress and quality of the entire project.

[0003] Traditional rotary drilling bits are typically designed with straight or simple curved cutting edges, a design widely used in scrap pile cutting operations. Straight cutting edges are relatively simple to design, easy to manufacture, and low in cost; while simple curved cutting edges attempt to improve cutting performance by changing the shape of the cutting edge.

[0004] However, in actual abandoned pile cutting operations, traditional rotary drilling bits often cannot effectively fix the abandoned pile. When the drill bit cuts the abandoned pile, the abandoned pile lacks stable support and is prone to shaking under the force of the drill bit. The shaking of the abandoned pile makes the cutting process difficult, which not only affects the cutting accuracy but also greatly reduces the cutting efficiency. Due to the shaking of the abandoned pile, the force on the drill bit during cutting also becomes unstable, which may lead to accelerated wear of the drill bit, shorten its service life, and damage or even breakage of the drill bit can easily threaten the personal safety of construction personnel. Summary of the Invention

[0005] To reduce the shaking of waste piles during the cutting process, improve cutting accuracy and efficiency, make the cutting process more stable, reduce the probability of rotary drilling bit wear, and ensure the personal safety of construction personnel, this application provides a rotary drilling bit.

[0006] This application provides a rotary drilling bit, which adopts the following technical solution: it includes a rotary drilling bit body, the cross-section of the rotary drilling bit body along the axial direction of the rotary drilling bit body is conical, two guide plates are provided at the bottom of the rotary drilling bit body, the two guide plates are symmetrically arranged about the axis of the rotary drilling bit body, the guide plates make the bottom of the rotary drilling bit body concave, the two guide plates make the bottom of the rotary drilling bit body form a triangular cutting edge, and the guide plates are provided with cutting teeth.

[0007] By adopting the above technical solution, the triangular cutting edge can accurately hold one end of the waste pile, while the conical concave shape can effectively wrap the waste pile, greatly reducing the shaking of the waste pile during the cutting process, making the cutting process more stable, improving cutting accuracy and speed, thereby improving the overall work efficiency. The more stable cutting process can reduce the probability of wear on the rotary drilling bit body while ensuring the personal safety of construction personnel.

[0008] Preferably, the guide plate is fan-shaped, the cutting tooth is connected to the guide plate through an adjusting seat, the adjusting seat has a sliding groove that passes through three side walls of the adjusting seat, the sliding groove is used for insertion into the straight side wall of the guide plate, the adjusting seat can be reciprocated and positioned along the length of the straight side wall of the guide plate, and one end of the cutting tooth is connected to the adjusting seat.

[0009] By adopting the above technical solution, the fan-shaped design is conducive to forming a specific cutting edge shape; the position of the cutting teeth can be flexibly adjusted, and the cutting teeth can be adjusted to the most suitable position according to the diameter of different waste piles and cutting requirements, which enhances the adaptability of the drill bit to different working conditions and improves the cutting effect.

[0010] Preferably, the outer side of the rotary drilling bit body is provided with annular reinforcing ribs, and multiple annular reinforcing ribs are provided. The multiple annular reinforcing ribs are equally spaced along the axial direction of the rotary drilling bit body, and the annular reinforcing ribs are integrally formed with the rotary drilling bit body body.

[0011] By adopting the above technical solution, the setting of the annular reinforcing rib greatly improves the structural strength of the rotary drilling bit body, enabling it to maintain a stable shape when subjected to large torque and cutting force, avoiding drill bit damage and operational failures caused by circumferential deformation, extending the service life of the drill bit, and improving operational safety.

[0012] Preferably, the outer side of the rotary drilling bit body is provided with a mesh reinforcing rib. The mesh reinforcing rib has a mesh structure and is evenly distributed circumferentially on the outer side of the rotary drilling bit body. The mesh reinforcing rib is welded to the rotary drilling bit body to form a three-dimensional support structure.

[0013] By adopting the above technical solution, the grid reinforcing ribs form a stable support structure, which comprehensively enhances the strength and stability of the rotary drilling bit body, enabling it to cope with complex cutting conditions, reducing damage to the rotary drilling bit body and maintenance costs caused by structural instability, and improving operating efficiency and economic benefits.

[0014] Preferably, the guide plate has multiple adjustment holes on the straight side where the cutting teeth are located. The adjustment seat penetrates the guide plate along its thickness direction. The multiple adjustment holes are equally spaced along the length of the straight side wall of the guide plate. The adjustment seat and the guide plate are connected by an adjustment component, which includes an adjustment bolt and an adjustment nut. The adjustment nut is used to fit onto the adjustment bolt. The adjustment bolt passes through one side wall of the slide groove, the adjustment hole, and the other side wall of the slide groove in sequence and is threadedly connected to the adjustment nut.

[0015] By adopting the above technical solution, the position of the cutting teeth can be flexibly adjusted. According to the diameter of different waste piles and cutting requirements, the cutting teeth can be adjusted to the most suitable position, which enhances the adaptability of the drill bit to different working conditions and improves the cutting effect.

[0016] Preferably, a wear-resistant layer is provided on the concave bottom of the rotary drilling bit body and on the opposite sidewalls of the two guide plates. The wear-resistant layer continuously covers the concave bottom of the rotary drilling bit body and the opposite sidewalls of the guide plates and has a uniform thickness distribution.

[0017] By adopting the above technical solution, the wear-resistant layer effectively reduces the wear rate of the rotary drilling bit body during the cutting process, protects the key parts of the rotary drilling bit body, extends the service life of the rotary drilling bit body, reduces the frequency of replacing the rotary drilling bit body, reduces operating costs, and also ensures the stability of the cutting effect.

[0018] Preferably, the cutting tooth and the adjusting seat are connected by a connecting post. The adjusting seat has a connecting groove on its side wall near the cutting tooth for the connecting post to be inserted. One end of the connecting post is connected to the cutting tooth, and the other end of the connecting post is inserted into the connecting groove and rotatably connected to the adjusting seat. A fixing member is provided on the side of the cutting tooth near the adjusting seat, and the fixing member is used to fix the cutting tooth and the adjusting seat relatively.

[0019] By adopting the above technical solution, the connecting post is inserted into the connecting groove, which ensures the stability and reliability of the connection between the cutting tooth and the adjusting seat. The opening of the connecting groove limits the angle adjustment of the cutting tooth and improves the reliability of the cutting tooth angle adjustment.

[0020] Preferably, the fastener includes two fixed connecting ears and a fixing bolt. The two fixed connecting ears are symmetrically arranged on both sides of the end of the cutting tooth near the adjusting seat. The adjusting seat has a threaded hole for the fixing bolt to pass through. There are multiple threaded holes, which are spaced at equal angles along the circumference of the connecting column. The fixing bolt passes through the fixed connecting ear and then into the threaded hole.

[0021] By adopting the above technical solution, the angle of the cutting tooth can be adjusted as needed and then fixed with fixing bolts. This adjustable angle design allows the cutting tooth to be adjusted to the optimal cutting angle according to the material and hardness of different waste piles, improving cutting efficiency and effect, while ensuring the stability of the cutting tooth during operation and reducing wear and damage caused by the shaking of the cutting tooth.

[0022] Preferably, the rotary drilling bit body has a spiral slag discharge channel, the spiral direction of the spiral slag discharge channel is consistent with the rotation direction of the rotary drilling bit body, and the rotary drilling bit body has a slag discharge outlet, which is located on the rotary drilling bit body away from the cutting edge.

[0023] By adopting the above technical solution, the design of the spiral slag discharge channel ensures that the slag generated during the cutting process can be discharged from the drill bit quickly and in a timely manner, avoiding the problems of increased cutting resistance and equipment damage caused by the accumulation of slag in the drill bit, improving the continuity and efficiency of the operation, and also ensuring the normal operation of the drill bit.

[0024] Preferably, a waste residue storage box is provided at one end of the rotary drilling bit body away from the cutting edge. One side of the waste residue storage box is connected to the slag discharge outlet, and a tilting box cover is detachably provided on the other side of the waste residue storage box. A pump is integrated into one side of the waste residue storage box.

[0025] By adopting the above technical solutions, the waste storage tank and pump setup enable the waste to be effectively collected and treated, avoiding the pollution caused by the random discharge of waste. At the same time, the pump speeds up the slag discharge, further improving operational efficiency and ensuring the environmental friendliness and efficiency of the entire operation.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The triangular cutting edge can precisely hold one end of the waste pile, while the conical concave shape can effectively wrap the waste pile, greatly reducing the shaking of the waste pile during the cutting process, making the cutting process more stable, improving cutting accuracy and speed, thereby improving the overall work efficiency. The more stable cutting process can reduce the probability of wear on the rotary drilling bit body while ensuring the personal safety of construction personnel. 2. The annular reinforcing ribs significantly improve the structural strength of the rotary drilling bit body, enabling it to maintain a stable shape under high torque and cutting forces. This prevents damage and operational malfunctions caused by circumferential deformation, extends the bit's service life, and improves operational safety. 3. The wear-resistant layer effectively reduces the wear rate of the rotary drilling bit body during the cutting process, protects the key parts of the rotary drilling bit body, extends the service life of the rotary drilling bit body, reduces the frequency of replacing the rotary drilling bit body, reduces operating costs, and also ensures the stability of the cutting effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 yes Figure 1 A magnified view of part A in the middle; Figure 3 This is a partial structural schematic diagram of Embodiment 1 of this application; Figure 4 This is a cross-sectional schematic diagram of the overall structure of Embodiment 1 of this application; Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0028] Explanation of reference numerals in the attached drawings: 110, Rotary drilling bit body; 111, Wear-resistant layer; 112, Spiral slag discharge channel; 113, Waste slag temporary storage box; 114, Slag discharge outlet; 115, Tilting box cover; 116, Pump; 117, Annular reinforcing rib; 118, Mesh reinforcing rib; 119, Embedded end; 120, Guide plate; 121, Cutting edge; 122, Adjusting hole; 130, Cutting tooth; 131, Connecting column; 132, Fixing component; 1321, Fixed connecting ear; 1322, Fixing bolt; 140, Adjusting seat; 141, Slide groove; 142, Adjusting component; 1421, Adjusting bolt; 1422, Adjusting nut; 143, Connecting groove; 144, Threaded hole. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] This application discloses a rotary drilling bit for reducing the shaking of waste piles during the cutting process, improving cutting accuracy and efficiency, making the cutting process more stable, reducing the probability of wear on the rotary drilling bit body, and ensuring the personal safety of construction personnel.

[0031] The technical solutions in the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. The described embodiments are only possible technical implementations of the present invention, but are not limited thereto. Other embodiments obtained by those skilled in the art in conjunction with the embodiments of the present invention without creative effort are also within the protection scope of the present invention.

[0032] Example 1 refer to Figures 1-4A rotary drilling bit includes a rotary drilling bit body 110. Two guide plates 120 are provided at the bottom of the rotary drilling bit body 110. The two guide plates 120 are symmetrically arranged with the axis of the rotary drilling bit body 110 as the center. The guide plates 120 make the bottom of the rotary drilling bit body 110 concave. The cross section of the rotary drilling bit body 110 along the axial direction of the rotary drilling bit body 110 is conical. That is, the rotary drilling bit body 110 has a concave conical structure as a whole, which achieves the significant effect of fixing the waste pile and improving cutting stability and efficiency when cutting waste piles.

[0033] Furthermore, the guide plate 120 is fan-shaped, and the arc side of the guide plate 120 is closely connected to the inner wall of the rotary drilling bit body 110. The fan-shaped design of the two guide plates 120 is conducive to forming a specific cutting edge 121 shape. The straight side of the two guide plates 120 forms a triangular cutting edge 121 at the bottom of the rotary drilling bit body 110. The triangular cutting edge 121 can accurately hold one end of the waste pile, while the conical concave shape can effectively wrap the waste pile, greatly reducing the shaking of the waste pile during the cutting process, making the cutting process more stable, improving cutting accuracy and speed, thereby improving the overall work efficiency. The more stable cutting process can reduce the probability of wear on the rotary drilling bit body 110 while ensuring the personal safety of construction personnel.

[0034] In addition, wear-resistant layers 111 are provided on the concave bottom of the rotary drill bit body 110 and on the opposite sidewalls of the two guide plates 120. The wear-resistant layers 111 continuously cover the concave bottom of the rotary drill bit body 110 and the opposite sidewalls of the guide plates 120 with uniform thickness. The wear-resistant layers 111 can be made of cemented carbide material and are attached to the concave bottom and the sidewalls of the guide plates 120 by spraying or embedding to reduce wear during the cutting process and extend service life. Ceramic coating can also be used as the wear-resistant layer 111. The setting of the wear-resistant layer 111 effectively reduces the wear rate of the rotary drill bit during the cutting process, protects the key parts of the drill bit, extends the service life of the drill bit, reduces the frequency of drill bit replacement, reduces operating costs, and also ensures the stability of the cutting effect.

[0035] Furthermore, the guide plate 120 is provided with a cutting tooth 130, which is connected to the guide plate 120 through an adjusting seat 140. The adjusting seat 140 can be made of cast iron, which has good wear resistance and strength, or it can be made of alloy material to further improve performance. The adjusting seat 140 is provided with a sliding groove 141, which runs through the three side walls of the adjusting seat 140 for insertion into the straight side wall of the guide plate 120. The adjusting seat 140 can be positioned and reciprocated along the length of the straight side wall of the guide plate 120. One end of the cutting tooth 130 is connected to the adjusting seat 140, so that the position of the cutting tooth 130 can be flexibly adjusted. According to the diameter of different waste piles and cutting requirements, the cutting tooth 130 can be adjusted to the most suitable position, which enhances the adaptability of the drill bit to different working conditions and improves the cutting effect.

[0036] The adjusting seat 140 is fitted onto the straight side of the guide plate 120 via a sliding groove 141, allowing it to slide on the guide plate 120. When the position of the cutting tooth 130 needs to be adjusted, the adjusting seat 140 can be moved to a suitable position and then fixed. Specifically, the straight side of the guide plate 120 where the cutting tooth 130 is located has multiple adjusting holes 122. The adjusting seat 140 penetrates the guide plate 120 along its thickness direction, and the multiple adjusting holes 122 are evenly spaced along the length of the straight side wall of the guide plate 120. The adjusting seat 140 and the guide plate 120 are connected by an adjusting member 142, which includes an adjusting bolt 1421 and an adjusting nut 1422. The adjusting nut 1422 is used to fit onto the adjusting bolt 1421. The adjusting bolt 1421 passes through one side wall of the slide groove 141, the adjusting hole 122, and the other side wall of the slide groove 141 in sequence, and is then threadedly connected to the adjusting nut 1422. In this way, the adjusting seat 140 can be easily fixed at different positions of the guide plate 120 to adapt to different cutting requirements, ensuring that the cutting tooth 130 can maintain a stable working state under different working conditions, thereby improving the accuracy and efficiency of cutting. In this embodiment, each adjusting seat 140 is provided with two sets of adjusting components 142 to further improve the connection stability between the adjusting seat 140 and the guide plate 120.

[0037] The cutting tooth 130 and the adjusting seat 140 are connected by a connecting post 131. A connecting groove 143 is provided on the side wall of the adjusting seat 140 near the cutting tooth 130 for the connecting post 131 to be inserted. One end of the connecting post 131 is connected to the cutting tooth 130, and the other end is inserted into the connecting groove 143 and rotatably connected to the adjusting seat 140. The connecting post 131 is cylindrical to ensure the stability and reliability of the connection. A fixing member 132 is provided on the side of the cutting tooth 130 near the adjusting seat 140. The fixing member 132 is used to keep the cutting tooth 130... The connecting post 130 and the adjusting seat 140 are relatively fixed. The fixing member 132 includes two fixing connecting ears 1321 and fixing bolts 1322. The two fixing connecting ears 1321 are symmetrically arranged on both sides of the end of the cutting tooth 130 near the adjusting seat 140. The adjusting seat 140 is provided with threaded holes 144 for the fixing bolts 1322 to pass through. Multiple threaded holes 144 are provided. The multiple threaded holes 144 are opened at equal angles along the circumference of the connecting post 131. After the fixing bolts 1322 pass through the fixing connecting ears 1321, they pass into the threaded holes 144.

[0038] In this way, the angle of the cutting tooth 130 can be adjusted as needed and then fixed with the fixing bolt 1322. This adjustable angle design allows the cutting tooth 130 to be adjusted to the optimal cutting angle according to the material and hardness of different waste piles, improving cutting efficiency and effect, while ensuring the stability of the cutting tooth 130 during operation and reducing wear and damage caused by the shaking of the cutting tooth 130.

[0039] In addition, a spiral slag discharge channel 112 is provided inside the rotary drilling bit body 110. The spiral direction of the spiral slag discharge channel 112 is consistent with the rotation direction of the rotary drilling bit body 110. A slag discharge outlet 114 is provided on the rotary drilling bit body 110. The slag discharge outlet 114 is located on the rotary drilling bit body 110 away from the cutting edge 121. The spiral slag discharge channel 112 utilizes centrifugal force and spiral diversion technology to quickly discharge the waste slag generated by cutting, thereby improving operating efficiency.

[0040] The design of the spiral slag discharge channel 112 ensures that the slag generated during the cutting process can be discharged from the drill bit in a timely and rapid manner, avoiding the problems of increased cutting resistance and equipment damage caused by the accumulation of slag inside the drill bit, improving the continuity and efficiency of the operation, and also ensuring the normal operation of the drill bit. A slag storage box 113 is provided at the end of the rotary drilling bit body 110 away from the cutting edge 121. One side of the slag storage box 113 is connected to the slag discharge outlet 114, and the other side of the slag storage box 113 is detachably equipped with a tilting cover 115. 3. A pump 116 is integrated on one side to accelerate the flow of waste residue into the temporary storage box and improve the slag discharge efficiency. The waste residue temporary storage box 113 can collect the discharged waste residue. When cleaning is required, the tipping box cover 115 can be opened. In this embodiment, both the waste residue temporary storage box 113 and the tipping box cover 115 are cylindrical. The tipping box cover 115 has an embedded end 119 extending from the end near the waste residue temporary storage box 113. The embedded end 119 is embedded in the waste residue temporary storage box 113, and the embedded end 119 is threadedly connected to the inner wall of the waste residue temporary storage box 113.

[0041] The installation of waste storage box 113 and pump 116 enables the effective collection and treatment of waste, avoiding pollution to the environment caused by the random discharge of waste. At the same time, pump 116 speeds up the discharge speed, further improving the efficiency of operation and ensuring the environmental protection and high efficiency of the entire operation process.

[0042] To enhance the structural strength of the rotary drilling bit body 110, multiple annular reinforcing ribs 117 are provided on its outer side. These ribs are evenly spaced along the drill bit's axial direction and are integrally formed with the drill bit body. The annular reinforcing ribs 117 are typically made of the same steel as the drill bit body 110 and are integrally formed with the body through casting, thus strengthening the body's circumferential strength and preventing circumferential deformation during cutting. Alternatively, pre-fabricated annular reinforcing ribs 117 can be welded to the body. The inclusion of these annular reinforcing ribs significantly improves the structural strength of the rotary drilling bit body 110, enabling it to maintain a stable shape under high torque and cutting forces. This prevents drill bit damage and operational malfunctions caused by circumferential deformation, extends the drill bit's service life, and improves operational safety.

[0043] The implementation principle of a rotary drilling bit according to an embodiment of this application is as follows: The rotary drilling bit has a unique conical concave structure and a triangular cutting edge 121 design. The triangular cutting edge 121 can accurately hold one end of the waste pile, while the conical concave structure can effectively wrap the waste pile, greatly reducing the shaking of the waste pile during the cutting process, making the cutting process more stable, improving cutting accuracy and speed, thereby improving the overall work efficiency. The more stable cutting process can reduce the probability of wear on the rotary drilling bit body 110 while ensuring the personal safety of construction personnel; the setting of the annular reinforcing rib 117 greatly improves the structural strength of the rotary drilling bit body 110. The adjustable cutting teeth 130 can adapt to cutting waste piles of different diameters. The spiral slag discharge channel 112 and waste slag storage box 113 ensure smooth discharge and collection of waste slag, further improving operational performance and significantly enhancing the cutting capabilities of the drill bit. The wear-resistant layer 111 effectively reduces the wear rate of the rotary drill bit body 110 during cutting, protecting key components, extending its service life, reducing replacement frequency, lowering operating costs, and ensuring stable cutting performance. The wear-resistant layer 111 effectively reduces the wear rate of the rotary drill bit body 110 during cutting, protecting key components, extending its service life, reducing replacement frequency, lowering operating costs, and ensuring stable cutting performance. The adjustable cutting teeth 130 can adapt to cutting waste piles of different diameters. The spiral slag discharge channel 112 and waste slag storage box 113 ensure smooth discharge and collection of waste slag, further improving operational performance and demonstrating significant improvements in waste pile cutting.

[0044] Example 2 refer to Figure 5 The difference from Embodiment 1 is that the outer side of the rotary drilling bit body 110 is provided with a grid reinforcing rib 118. The grid reinforcing rib 118 has a grid structure and is evenly distributed circumferentially on the outer side of the rotary drilling bit body 110. The grid reinforcing rib 118 is welded to the rotary drilling bit body 110 to form a three-dimensional support structure. The grid reinforcing rib 118 forms a stable support structure, which comprehensively enhances the strength and stability of the rotary drilling bit body 110, enabling it to cope with complex cutting conditions, reducing damage and maintenance costs of the rotary drilling bit body 110 caused by structural instability, and improving operating efficiency and economic benefits.

[0045] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotary drilling bit, comprising a rotary drilling bit body (110), characterized in that: The rotary drilling bit body (110) has a tapered cross section along the axial direction of the rotary drilling bit body (110). The bottom of the rotary drilling bit body (110) is provided with two guide plates (120). The two guide plates (120) are symmetrically arranged with the axis of the rotary drilling bit body (110) as the center. The guide plates (120) make the bottom of the rotary drilling bit body (110) concave. The two guide plates (120) form a triangular cutting edge (121) at the bottom of the rotary drilling bit body (110). The guide plates (120) are provided with cutting teeth (130).

2. A rotary drilling bit according to claim 1, characterized in that: The guide plate (120) is fan-shaped. The cutting tooth (130) is connected to the guide plate (120) through the adjusting seat (140). The adjusting seat (140) is provided with a sliding groove (141). The sliding groove (141) passes through the three side walls of the adjusting seat (140). The sliding groove (141) is used for the straight side wall of the guide plate (120) to be inserted. The adjusting seat (140) can be reciprocated and positioned along the length direction of the straight side wall of the guide plate (120). One end of the cutting tooth (130) is connected to the adjusting seat (140).

3. A rotary drilling bit according to claim 1, characterized in that: The outer side of the rotary drilling bit body (110) is provided with annular reinforcing ribs (117), and multiple annular reinforcing ribs (117) are provided. The multiple annular reinforcing ribs (117) are equally spaced along the axial direction of the rotary drilling bit body (110), and the annular reinforcing ribs (117) are integrally formed with the main body of the rotary drilling bit body (110).

4. A rotary drilling bit according to claim 1, characterized in that: The outer side of the rotary drilling bit body (110) is provided with a grid reinforcing rib (118). The grid reinforcing rib (118) has a grid structure and is evenly distributed circumferentially on the outer side of the rotary drilling bit body (110). The grid reinforcing rib (118) is welded to the rotary drilling bit body (110) to form a three-dimensional support structure.

5. A rotary drilling bit according to claim 2, characterized in that: The guide plate (120) is provided with a plurality of adjustment holes (122) on the straight side of the cutting teeth (130). The adjustment seat (140) penetrates the guide plate (120) along the thickness direction of the guide plate (120). The plurality of adjustment holes (122) are equally spaced along the length direction of the straight side wall of the guide plate (120). The adjustment seat (140) and the guide plate (120) are connected by an adjustment component (142). The adjustment component (142) includes an adjustment bolt (1421) and an adjustment nut (1422). The adjustment nut (1422) is used to fit onto the adjustment bolt (1421). The adjustment bolt (1421) passes through one side wall of the slide groove (141), the adjustment hole (122), and the other side wall of the slide groove (141) in sequence and is threadedly connected to the adjustment nut (1422).

6. A rotary drilling bit according to claim 1, characterized in that: Wear-resistant layers (111) are provided on the concave bottom of the rotary drilling bit body (110) and the opposite sidewalls of the two guide plates (120). The wear-resistant layers (111) continuously cover the concave bottom of the rotary drilling bit body (110) and the opposite sidewalls of the guide plates (120) and have a uniform thickness.

7. A rotary drilling bit according to claim 5, characterized in that: The cutting tooth (130) and the adjusting seat (140) are connected by a connecting post (131). The adjusting seat (140) has a connecting groove (143) on the side wall near the cutting tooth (130) for the connecting post (131) to be inserted. One end of the connecting post (131) is connected to the cutting tooth (130), and the other end of the connecting post (131) is inserted into the connecting groove (143) and rotatably connected to the adjusting seat (140). A fixing member (132) is provided on the side of the cutting tooth (130) near the adjusting seat (140). The fixing member (132) is used to fix the cutting tooth (130) and the adjusting seat (140) relatively.

8. A rotary drilling bit according to claim 7, characterized in that: The fastener (132) includes two fixed connecting ears (1321) and a fixing bolt (1322). The two fixed connecting ears (1321) are symmetrically arranged on both sides of the end of the cutting tooth (130) near the adjusting seat (140). The adjusting seat (140) has a threaded hole (144) for the fixing bolt (1322) to pass through. There are multiple threaded holes (144), which are equally spaced along the circumference of the connecting post (131). The fixing bolt (1322) passes through the fixed connecting ears (1321) and then into the threaded hole (144).

9. A rotary drilling bit according to claim 8, characterized in that: The rotary drilling bit body (110) is provided with a spiral slag discharge channel (112), the spiral direction of the spiral slag discharge channel (112) is consistent with the rotation direction of the rotary drilling bit body (110), and the rotary drilling bit body (110) is provided with a slag discharge outlet (114), the slag discharge outlet (114) is located on the rotary drilling bit body (110) away from the cutting edge (121).

10. A rotary drilling bit according to claim 9, characterized in that: The rotary drilling bit body (110) is provided with a waste residue storage box (113) at one end away from the cutting port (121). One side of the waste residue storage box (113) is connected to the slag discharge outlet (114). The other side of the waste residue storage box (113) is provided with a detachable tilting box cover (115). A pump (116) is integrated on one side of the waste residue storage box (113).

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