Rectangular-section hole-repairing drill bit for anti-slide pile

Abstract

The application provides an anti-slide pile rectangular section hole repairing drill bit, and belongs to the technical field of anti-slide pile installation. The anti-slide pile rectangular section hole repairing drill bit solves the technical problem of quick maintenance and repair of the wheels of the anti-slide pile rectangular section hole repairing drill bit and reduces the maintenance cost. The anti-slide pile rectangular section hole repairing drill bit comprises a machine body, two driving shafts are arranged on the two sides of the machine body, one driving shaft is arranged at each end of the machine body, a driving disc is fixedly connected to each driving shaft through a fixing bolt, a drill bit wheel frame is arranged on the circumferential surface of each driving disc, the rotating directions of the two driving discs on the same side are opposite, three fan-shaped slot holes are equidistantly arranged on the outer side of each driving disc, and a limiting mechanism is arranged in each fan-shaped slot hole. In the application, the drill bit wheel frame is conveniently replaced, the equipment downtime maintenance time is reduced, the hole repairing drill bit maintenance efficiency is improved, the use cost is reduced, the risk of project delay caused by component replacement is reduced, and the overall construction efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of anti-slide pile installation technology, and relates to a rectangular section drilling bit for anti-slide piles, particularly a rectangular section drilling bit for anti-slide piles. Background Technology

[0002] Anti-slide piles are widely used in various engineering projects, including slope protection, roadbed construction, foundation pit excavation, and tunnel entrance / exit construction, as an effective measure to resist lateral thrust and mitigate engineering and geological hazards. Anti-slide piles are mainly divided into rectangular cross-section anti-slide piles and circular cross-section anti-slide piles. Among them, rectangular cross-section anti-slide piles are favored in many engineering fields due to their high lateral stiffness and high single pile bearing capacity, which effectively enhances anti-slide force and improves the anti-slide coefficient.

[0003] In existing technologies, the construction of rectangular cross-section anti-slide piles typically involves drilling multiple stacked circular holes in the ground using a drilling rig to create rectangular installation holes. When the required size is reached, a rectangular drill bit is used to refine the holes, making them rectangular. However, during prolonged use, the drill bit's wheel is prone to deformation due to impacts from rocks, affecting work efficiency. Replacing the entire wheel would significantly increase operating costs. Therefore, a rectangular cross-section drill bit for anti-slide piles is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a rectangular section drilling bit for repairing anti-slide piles. The technical problem this invention aims to solve is: how to achieve rapid maintenance and repair of the wheels of the rectangular section drilling bit for repairing anti-slide piles, thereby reducing maintenance costs.

[0005] The objective of this invention can be achieved through the following technical solutions: A rectangular section drilling bit for anti-slide piles includes a body with two drive shafts on both sides and one drive shaft at each end of the body. Each drive shaft is fixedly connected to a drive disc by a fixing bolt. Each drive disc has a drill bit wheel frame on its circumferential surface, and the two drive discs on the same side rotate in opposite directions. Each drive disc has three fan-shaped slots equidistantly spaced on its outer side, and each fan-shaped slot has a limit mechanism. Each drive disc also has a drive mechanism for driving the limit mechanism. The limit mechanism includes a U-shaped frame fixedly connected to the fan-shaped slot. A rotating rod is rotatably sleeved in the middle of the U-shaped frame. A circular hole adapted to the rotating rod is opened on the U-shaped frame. A first rotating rod is fixedly connected to the bottom of the rotating rod. A locking rod is fixedly connected to the other end of the first rotating rod away from the drive disc. A limit block is fixedly connected to the other end of the locking rod. An L-shaped rotating rod is fixedly connected to the other end of the rotating rod.

[0006] The working principle of this invention is as follows: the locking rods of the three limiting mechanisms rotate on the arc-shaped hole. Under the action of the limiting block, the fixing ring and the drive disk are tightly connected and will not separate. In conjunction with the rotation direction of the drive disk, the locking rods slide to the innermost end of the arc-shaped hole, making the limiting mechanism tighter and preventing it from falling off.

[0007] A fixing ring is fixedly connected to the inner circumference of the drill bit wheel frame. Three arc-shaped holes are equally spaced on the circumference of the fixing ring, and the arc-shaped holes are adapted to the limiting mechanism. Each arc-shaped hole has a through hole adapted to the limiting block at one end near the drill bit wheel frame.

[0008] The above structure, through the cooperation of the arc-shaped hole and the limiting mechanism, facilitates the fixing of the drill bit wheel frame and the drive disc.

[0009] The outer circumference of the drill bit frame is fixedly connected with multiple inclined fixing sleeves at equal intervals, and each inclined fixing sleeve is fixedly fitted with a grinding drill bit.

[0010] With the above structure, the grinding drill bit on the inclined fixed sleeve is replaceable, which facilitates the modification of the drill hole and makes it suitable for anti-slip piles; The driving mechanism includes a first fixed cylinder fixedly connected to the middle of the outer side of the driving disk, and a rotating ring is rotatably sleeved on the side of the outer circumference of the first fixed cylinder near the driving disk, and three vertical holes are equally spaced on the circumference of the rotating ring, and one end of each L-shaped rotating rod is slidably connected in the adjacent vertical holes. The driving mechanism also includes a second fixed cylinder fixedly connected to the outside of the rotating ring. An internal gear is fixedly connected to the inner circumference of the second fixed cylinder, and an annular oblique tooth is fixedly connected to the outer circumference of the second fixed cylinder.

[0011] With the above structure, the rotation of the second fixed cylinder causes the L-shaped rotating rods of the three limiting mechanisms to rotate, so that the limiting blocks slide on the arc-shaped holes, thereby fixing and separating the drill bit wheel frame, which facilitates the disassembly and installation of the drill bit wheel frame.

[0012] The outer end of the first fixed cylinder is fixedly connected to a protective ring, and a rotating shaft is rotatably sleeved on one side of the protective ring. A rotating bolt is fixedly connected to the outer end of the rotating shaft, and a small gear is fixedly sleeved on the inner side of the rotating bolt. The small gear meshes with the internal gear.

[0013] With the above structure, the rotation of the pinion gear enables the second fixed cylinder and rotating ring of the drive mechanism to rotate, thereby controlling the limit mechanism.

[0014] Two slide rods are fixedly connected to the inner circumference of the drill bit wheel frame. A protrusion is fixedly connected to the other end of each slide rod. The same T-shaped inclined block is slidably fitted on the circumferential surface of the two slide rods. A circular hole adapted to the slide rod is opened on the T-shaped inclined block. The T-shaped inclined block is adapted to the annular inclined tooth. A spring is fitted on the end of each slide rod near the drill bit wheel frame.

[0015] With the above structure, the T-shaped inclined block and spring are used to ensure that after the drill bit wheel frame is connected to the drive disc, the second fixed cylinder will not loosen and reverse during operation, causing the limit mechanism to operate, while the drill bit wheel frame is prone to loosening.

[0016] The drill bit wheel frames of the two drive discs on the same side of the machine body are oriented in opposite directions. A connecting frame is provided in the middle of the top of the machine body, and a hydraulic connector is provided at one end of the top of the machine body.

[0017] Compared with the prior art, the rectangular section drilling bit for anti-slide piles of the present invention has the following advantages: 1. In this invention, by employing the technical means of drill bit wheel frame, arc-shaped hole limiting mechanism, drive mechanism, rotating bolt and pinion, the rotation of the pinion causes the rotating ring of the drive mechanism to rotate, driving the three limiting mechanisms to operate, thereby achieving rapid fastening or separation of the drill bit wheel frame, making the drill bit wheel frame easy to replace. This effectively solves the problems mentioned in the background art, thereby realizing convenient replacement of the drill bit wheel frame, reducing equipment downtime for maintenance, improving the maintenance efficiency of hole-repairing drill bits, reducing usage costs, reducing the risk of project delays caused by component replacement, and improving overall construction efficiency.

[0018] 2. In this invention, by setting up T-shaped inclined blocks, springs, and annular inclined teeth, the drive mechanism will not loosen after the drill bit wheel frame is installed. At the same time, when the drive disc drives the drill bit wheel frame to rotate, the limiting mechanism and the arc-shaped hole will make the drill bit wheel frame more stable and secure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a rectangular cross-section drilling bit for anti-slide piles proposed in this invention; Figure 2 A schematic diagram of the structure of the rectangular cross-section drill bit wheel frame for anti-slide piles proposed in this invention; Figure 3 A rectangular cross-section drilling bit for repairing anti-slide piles is proposed for this invention. Figure 2 An enlarged structural diagram at point A; Figure 4 A schematic diagram of the outer side of the drive disc of a rectangular cross-section drill bit for anti-slide piles, as proposed in this invention; Figure 5A schematic diagram of the limiting mechanism structure of a rectangular cross-section drilling bit for anti-slide piles proposed in this invention; Figure 6 A schematic diagram of a rectangular cross-section drill bit drive mechanism for anti-slide piles proposed in this invention; Figure 7 A rectangular cross-section drilling bit for repairing anti-slide piles is proposed for this invention. Figure 6 An enlarged structural diagram at point B.

[0020] In the diagram, 1. Machine body; 101. Connecting frame; 102. Hydraulic connector; 2. Drill bit wheel frame; 201. Inclined fixing sleeve; 202. Grinding drill bit; 203. Fixing ring; 204. Arc-shaped hole; 205. Spring; 206. T-shaped inclined locking block; 207. Slide rod; 3. Drive disc; 301. Fixing bolt; 302. Fan-shaped slot; 4. Limiting mechanism; 401. U-shaped frame; 402. First rotating rod; 403. Locking rod; 404. Limiting block; 405. L-shaped rotating rod; 5. Drive mechanism; 501. First fixing cylinder; 502. Rotating ring; 503. Vertical hole; 504. Internal gear; 505. Annular inclined locking tooth; 506. Second fixing cylinder; 6. Protective ring; 601. Rotating bolt; 602. Small gear. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] like Figures 1-7 As shown, a rectangular section drilling bit for anti-slide piles includes a body 1. Two drive shafts are arranged on both sides of the body 1, and one drive shaft is also arranged at each end of the body 1. Each drive shaft is fixedly connected to a drive disc 3 by a fixing bolt 301. A drill bit wheel frame 2 is provided on the circumferential surface of each drive disc 3, and the two drive discs 3 on the same side rotate in opposite directions. Three fan-shaped slots 302 are equally spaced on the outer side of each drive disc 3, and a limit mechanism 4 is provided in each fan-shaped slot 302. A drive mechanism 5 for driving the limit mechanism 4 is also provided on the outer side of each drive disc 3. The limit mechanism 4 includes a fixed... A U-shaped frame 401 is fixedly connected to the fan-shaped slot 302. A rotating rod is rotatably sleeved in the middle of the U-shaped frame 401. A round hole adapted to the rotating rod is opened on the U-shaped frame 401. A first rotating rod 402 is fixedly connected to the bottom of the rotating rod. A locking rod 403 is fixedly connected to the other end of the first rotating rod 402 away from the drive disk 3. A limit block 404 is fixedly connected to the other end of the locking rod 403. An L-shaped rotating rod 405 is fixedly connected to the other end of the rotating rod. With the setting of the limiting mechanism 4, when the L-shaped rotating rod 405 is driven to rotate, the first rotating rod 402 will also carry the limit block 404 and the locking rod 403.

[0023] In this invention, a fixing ring 203 is fixedly connected to the inner circumference of the drill bit wheel frame 2. Three arc-shaped holes 204 are equally spaced on the circumference of the fixing ring 203, and the arc-shaped holes 204 are adapted to the limiting mechanism 4. Each arc-shaped hole 204 has a through hole adapted to the limiting block 404 at one end near the drill bit wheel frame 2. The through hole facilitates the insertion of the limiting block 404. After being inserted into the arc-shaped hole 204, it will not fall off.

[0024] In this invention, a plurality of inclined fixing sleeves 201 are fixedly connected at equal intervals on the outer circumference of the drill bit frame 2, and a grinding drill bit 202 is fixedly fitted inside each inclined fixing sleeve 201.

[0025] In this invention, the driving mechanism 5 includes a first fixed cylinder 501 fixedly connected to the middle of the outer side of the driving disk 3. A rotating ring 502 is rotatably sleeved on the side of the outer circumference of the first fixed cylinder 501 close to the driving disk 3. Three vertical holes 503 are equally spaced on the circumference of the rotating ring 502. One end of each L-shaped rotating rod 405 is slidably connected in the adjacent vertical hole 503. When the rotating ring 502 rotates, the L-shaped rotating rod 405 slides in the rotating ring 502, which can drive the L-shaped rotating rod 405 to rotate, thereby driving the limiting mechanism 4 to operate.

[0026] In this invention, the driving mechanism 5 further includes a second fixed cylinder 506 fixedly connected to the outside of the rotating ring 502. An internal gear 504 is fixedly connected to the inner circumference of the second fixed cylinder 506, and an annular oblique tooth 505 is fixedly connected to the outer circumference of the second fixed cylinder 506.

[0027] In this invention, a protective ring 6 is fixedly connected to the outer end of the first fixed cylinder 501, and a rotating shaft is rotatably sleeved on one side of the protective ring 6. A rotating bolt 601 is fixedly connected to the outer end of the rotating shaft, and a small gear 602 is fixedly sleeved on the inner side of the rotating bolt 601. The small gear 602 meshes with the inner gear 504. By rotating the rotating bolt 601, the small gear 602 drives the inner gear 504 to rotate, thereby causing the drive mechanism 5 to operate and drive the limiting mechanism 4 to fix and separate the drill bit wheel frame 2.

[0028] In this invention, two slide rods 207 are fixedly connected to the inner circumference of the drill bit wheel frame 2. A protrusion is fixedly connected to the other end of each slide rod 207. The same T-shaped inclined block 206 is slidably fitted on the circumferential surface of the two slide rods 207. A circular hole adapted to the slide rod 207 is opened on the T-shaped inclined block 206. The T-shaped inclined block 206 is adapted to the annular inclined tooth 505. A spring 205 is fitted on the end of each slide rod 207 near the drill bit wheel frame 2. Through the cooperation of the spring 205, the T-shaped inclined block 206 and the annular inclined tooth 505, the drive mechanism 5 will not loosen when the device is operating, thus improving stability. The drill bit wheel frame 2 will only become tighter and tighter.

[0029] In this invention, the drill bit wheel frames 2 of the two drive discs 3 on the same side of the machine body 1 are in opposite directions, a connecting frame 101 is provided at the middle of the top of the machine body 1, and a hydraulic connector 102 is provided at one end of the top of the machine body 1.

[0030] The working principle of this invention is as follows: When the drill bit is used for rectangular hole repair of anti-slide piles, it is connected to the repair equipment and, through the hydraulic pipeline, causes the machine body 1 to drive six drive discs 3 and the drill bit wheel frame 2 to rotate. The drill bit wheel frames 2 on both sides of the machine body 1 rotate in opposite directions. The limiting mechanism 4, drive mechanism 5, arc-shaped hole 204, annular oblique locking teeth 505, and T-shaped oblique locking blocks 206 on each drive disc 3 are adapted to the rotation direction, ensuring that the drill bit wheel frame 2 remains secure and does not loosen during rotation. After prolonged use... When the drill bit wheel frame 2 is deformed and needs to be replaced, push the T-shaped inclined block 206 to separate it from the annular inclined tooth 505. Then, rotate the rotating bolt 601 at the protective ring 6 through the hexagonal sleeve, causing the pinion 602 to rotate. Under the action of the internal gear 504, the vertical hole 503 of the second fixed cylinder 506 rotates accordingly. Since the L-shaped rotating rods 405 of the three limiting mechanisms 4 slide in the vertical hole 503, when the rotating ring 502 rotates, the L-shaped rotating rods 405 of the three limiting mechanisms 4 will rotate around the vertical hole 503. The rotation of its own rotating rod causes the first rotating rod 402 and the locking rod 403 to rotate as well, allowing the locking rod 403 to slide in the arc-shaped hole 204 until they both slide to the end of the arc-shaped hole 204 closest to the edge of the drill bit wheel frame 2. At this point, the drill bit wheel frame 2 and the fixing ring 203 can be separated from the drive disc 3, allowing the replacement of the drill bit wheel frame 2. After aligning the arc-shaped hole 204 of the new drill bit wheel frame 2 with the limiting block 404 and fitting it, the rotating bolt 601 at the protective ring 6 is rotated using a tool, causing the pinion 602 to engage its internal teeth. The rotation of wheel 504, second fixed cylinder 506, and rotating ring 502 causes the three limiting mechanisms 4 to lock the arc-shaped hole 204 again. At the same time, the T-shaped oblique block 206 slides on the annular oblique tooth 505, so that the second fixed cylinder 506 and rotating ring 502 will not rotate in opposite directions, ensuring the stability of the drill bit wheel frame 2. When the drive disc 3 drives the drill bit wheel frame 2 to rotate, the limiting mechanism 4 and the arc-shaped hole 204 become increasingly tighter due to the direction of rotation, so that there will be no loosening during use, thus improving stability.

[0031] In summary, in this invention, the small gear 602 drives the internal gear 504 to rotate, causing the rotating ring 502 to rotate, which in turn drives the limiting mechanism 4 to rotate. This causes the locking rods 403 of the three limiting mechanisms 4 to engage in the arc-shaped hole 204. In conjunction with the limiting block 404, the fixed ring 203 will not separate from the drive disk 3. At the same time, during the rotation of the drive disk 3, due to the rotation direction of the drive disk 3, the locking rods 403 will only become increasingly tighter in the arc-shaped hole 204, without any loosening. Furthermore, the engagement of the T-shaped oblique locking block 206 and the annular oblique locking tooth 505 ensures that the second fixed cylinder 506 will not loosen, further guaranteeing the stability of the drive mechanism 5 and making the limiting mechanism 4 even less likely to loosen. This improves the stability of the drill bit wheel frame 2 during rotation, thereby enabling rapid replacement and maintenance of the drill bit wheel frame 2, reducing manual labor intensity, and lowering the cost of subsequent maintenance.

[0032] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A rectangular cross-section drilling bit for repairing anti-slide piles, comprising a body (1), characterized in that, Two drive shafts are provided on both sides of the machine body (1), and a drive shaft is provided at both ends of the machine body (1). Each drive shaft is fixedly connected to a drive disk (3) by a fixing bolt (301). A drill wheel frame (2) is provided on the circumferential surface of each drive disk (3). The rotation directions of the two drive disks (3) on the same side are opposite. Three fan-shaped slots (302) are equally spaced on the outer side of each drive disk (3). A limit mechanism (4) is provided in each fan-shaped slot (302). A drive mechanism (5) for driving the limit mechanism (4) is provided on the outer side of each drive disk (3). The limit mechanism (4) includes a U-shaped frame (4) fixedly connected to the fan-shaped slot (302). 01), a rotating rod is rotatably sleeved in the middle of the U-shaped frame (401). A round hole adapted to the rotating rod is opened on the U-shaped frame (401). A first rotating rod (402) is fixed at one end of the rotating rod near the machine body (1). A clamping rod (403) is fixedly connected to the other end of the first rotating rod (402) away from the drive disc (3). A limit block (404) is fixedly connected to the other end of the clamping rod (403). An L-shaped rotating rod (405) is fixedly connected to the other end of the rotating rod. A fixing ring (203) is fixedly connected to the inner circumference of the drill bit wheel frame (2). Three arc-shaped holes (204) are opened at equal intervals on the circumference of the fixing ring (203). The arc-shaped holes (204) are aligned with the limit mechanism (4). For each of the arc-shaped holes (204), a through hole adapted to the limiting block (404) is opened at one end near the drill bit wheel frame (2); the driving mechanism (5) includes a first fixed cylinder (501) fixedly connected to the middle of the outer side of the driving disk (3), and a rotating ring (502) is rotatably sleeved on the outer circumference of the first fixed cylinder (501) near the driving disk (3), and three vertical holes (503) are opened at equal intervals on the circumference of the rotating ring (502), and one end of each of the L-shaped rotating rods (405) is slidably connected in the adjacent vertical holes (503); the driving mechanism (5) also includes a second fixed cylinder (506) fixedly connected to the outer side of the rotating ring (502), the second fixed cylinder (506) is slidably ... An internal gear (504) is fixedly connected to the inner circumference of the fixed cylinder (506), and an annular oblique tooth (505) is fixedly connected to the outer circumference of the second fixed cylinder (506). Two slide rods (207) are fixedly connected to the inner circumference of the drill bit wheel frame (2). A protrusion is fixedly connected to the other end of each slide rod (207). The same T-shaped oblique block (206) is slidably sleeved on the circumferential surface of the two slide rods (207). A round hole adapted to the slide rod (207) is opened on the T-shaped oblique block (206). The T-shaped oblique block (206) is adapted to the annular oblique tooth (505). A spring (205) is sleeved on the end of each slide rod (207) near the drill bit wheel frame (2).

2. The rectangular section drilling bit for repairing anti-slide piles according to claim 1, characterized in that, The outer circumference of the drill bit frame (2) is fixedly connected with multiple inclined fixing sleeves (201) at equal intervals, and each inclined fixing sleeve (201) is fixedly fitted with a grinding drill bit (202).

3. The rectangular section drilling bit for repairing anti-slide piles according to claim 2, characterized in that, The first fixed cylinder (501) is fixedly connected to a protective ring (6) at its outer end, and a rotating shaft is rotatably sleeved on one side of the protective ring (6), and a rotating bolt (601) is fixedly connected to the outer end of the rotating shaft, and a small gear (602) is fixedly sleeved on the inner side of the rotating bolt (601), and the small gear (602) meshes with the internal gear (504).

4. The rectangular section drilling bit for repairing anti-slide piles according to claim 1, characterized in that, The drill bit wheel frames (2) of the two drive discs (3) on the same side of the machine body (1) are in opposite directions. A connecting frame (101) is provided at the middle of the top of the machine body (1), and a hydraulic connector (102) is provided at one end of the top of the machine body (1).

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