A pile cutter for construction engineering

Abstract

The present invention discloses a pile cutter for construction engineering, which relates to the technical field of pile cutters, and comprises a disc, on which connection blocks are arranged in a circular array, on which a hydraulic cylinder is arranged, on which an output end of the hydraulic cylinder is arranged a drill rod, and on one side of the hydraulic cylinder is arranged an adjustment component. The pile cutter for construction engineering can adapt to pile foundations of different positions and shapes by adjusting the working angle of the drill rod, and select the most suitable truncation angle, thereby greatly improving the flexibility of operation, which makes the operation more convenient and can adapt to more diverse construction environments and requirements; different working angles can make the drill rod more accurate and efficient when cutting the pile foundation, and by adjusting the angle, it can be ensured that the drill rod acts on the pile foundation in the best state, reducing energy loss and unnecessary wear during the truncation process, thereby improving the truncation efficiency and truncation quality.

Description

Technical Field

[0001] The invention relates to the technical field of pile cutters, in particular to a pile cutter for construction engineering. Background Art

[0002] In the field of construction engineering, pile foundation construction is a key link to ensure the stability and safety of building structures. With the continuous advancement of construction technology and the increase in diversified construction needs, higher requirements are placed on the efficiency and accuracy of pile foundation cutting operations. Against this background, pile cutters for construction engineering came into being and have become an indispensable equipment in modern pile foundation construction.

[0003] The prior art pile cutters for construction projects usually adopt a fixed or limited adjustable angle drill rod design. This design can meet the basic pile foundation cutting needs to a certain extent, but its flexibility and adaptability are greatly limited when facing pile foundations of different positions and shapes. Specifically, the fixed drill rod cannot be accurately adjusted according to the actual position and shape of the pile foundation, resulting in low cutting efficiency and easy to produce unnecessary energy loss and wear. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a pile cutter for construction engineering, which solves the technical problems mentioned in the background technology.

[0005] To achieve the above object, the present invention is implemented by the following technical scheme: a pile cutter for construction engineering, comprising a disc, a connecting block is arranged in a circumferential array on the disc, a hydraulic cylinder is arranged on the connecting block, a drill rod is arranged at the output end of the hydraulic cylinder, and an adjustment component is arranged on one side of the hydraulic cylinder;

[0006] An adjustment groove for the rotation of the hydraulic cylinder and the drill rod is provided on the inner side of the connecting block, and a first support frame and a second support frame are fixedly connected to the upper and lower ends of the outer side of the connecting block respectively, and positioning holes are provided on the side wall of the first support frame in a circular array, and a rotating shaft is rotatably connected to the first support frame, and a first sliding block slidably connected to the hydraulic cylinder is fixedly connected to the bottom of the rotating shaft, and a first gear is fixedly connected to the top of the rotating shaft, and a gear ring is meshedly connected to the outer end of the first gear, and the gear ring is rotatably installed on the top of the disc, and a second gear is meshedly connected to the outer end of the gear ring, and an adjusting motor fixedly installed on the disc is provided on the top of the second gear.

[0007] As a further optimization of the present technical solution, the upper and lower ends of the hydraulic cylinder are fixedly connected with fixed plates, the lower fixed plate is connected to the second support frame in a transverse sliding manner, the upper fixed plate is connected to the rotating shaft in a transverse sliding manner through a first slider, a connecting plate is provided on the outer side of the fixed plate, the upper and lower ends of the connecting plate are fixedly connected with a U-shaped plate, the upper U-shaped plate is fixedly installed on the rotating shaft, one end of the lower U-shaped plate is rotatably connected to the second support frame, and one end of the outer side of the fixed plate is connected to the U-shaped plate in a transverse sliding manner through a second slider.

[0008] As a further preferred embodiment of the present technical solution, a sleeve is fixedly connected to the outer end of the connecting plate, a plug-in rod is laterally slidably connected to the sleeve, and the other end of the plug-in rod passes through the second slider and is plugged into the positioning hole.

[0009] As a further preferred embodiment of the present technical solution, the inner cavity of the sleeve is provided with a first limit block fixedly mounted on the plug-in rod, a spring sleeved on the plug-in rod is provided on the outer side of the first limit block, a connecting plate is fixedly connected to the outer end of the plug-in rod, and a cylinder fixedly mounted on the connecting plate is provided at the other end of the connecting plate.

[0010] As a further preferred embodiment of the present technical solution, the adjustment assembly includes support rods fixedly installed on both sides of the connecting plate, a sliding rod is fixedly connected to the support rod, a movable frame is slidably connected to the sliding rod, and a first damping spring mounted on the sliding rod is arranged on the inner side of the movable frame, a movable rod connected to the hydraulic cylinder is fixedly connected to the inner end of the movable frames on both sides, and a cross bar is fixedly connected to the bottom of the two movable frames.

[0011] As a further preferred embodiment of the present technical solution, a sliding plate is laterally slidably connected to the connecting plate, a row of push rods are rotatably connected to the top of the sliding plate, and the positions of the push rods and the cross bars correspond to each other, and a counterweight is fixedly connected to one end of the push rod.

[0012] As a further preferred embodiment of the present technical solution, a servo motor is fixedly installed at the bottom of the connecting plate, a rotating rod is fixedly connected to the output end of the servo motor, the other end of the rotating rod is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the bottom of the sliding board.

[0013] As a further preferred embodiment of the present technical solution, a mounting plate is fixedly connected to the support rod, a row of movable rods is slidably connected to the mounting plate, a trapezoidal block is fixedly connected to the bottom of the movable rod, and the positions of the trapezoidal block and the movable frame correspond to each other, a second limit block located below the mounting plate is fixedly connected to the outer wall of the movable rod, and a second damping spring mounted on the movable rod is arranged between the mounting plate and the trapezoidal block.

[0014] Compared with the prior art, it has the following beneficial effects:

[0015] By adjusting the working angle of the drill rod, it can adapt to piles of different positions and shapes, and select the most suitable cutting angle, thereby greatly improving the flexibility of the operation, which makes the operation more convenient and can adapt to more diverse construction environments and needs; different working angles can make the drill rod more accurate and efficient when cutting the pile foundation. By adjusting the angle, it can be ensured that the drill rod acts on the pile foundation in the best state, reducing energy loss and unnecessary wear during the cutting process, thereby improving the cutting efficiency and cutting quality; by adjusting the working angle, safety accidents caused by improper equipment position or improper operation can be avoided. At the same time, this design also helps to reduce the vibration and impact of the equipment during operation, thereby further protecting the safety of operators and equipment.

[0016] Driven by the cylinder, the connecting plate can drive the connecting rod and the first limit block to move outward or inward conveniently. This design makes the angle adjustment of the hydraulic cylinder flexible and easy to operate; under the action of the spring, the connecting rod can be accurately inserted into or disengaged from the positioning hole. This precise plug-in mechanism ensures the stability of the hydraulic cylinder after adjusting the angle and avoids unnecessary rotation during work; through the engagement of the connecting rod with the positioning hole, the hydraulic cylinder is effectively fixed during the working process, which greatly reduces the safety hazards caused by equipment shaking or movement, thereby improving the overall safety of pile foundation cutting operations.

[0017] Through the precise control of the servo motor, the rotating rod, the connecting rod and the sliding plate work together to achieve the synchronous reciprocating movement of the push rod and the counterweight. This efficient circulation mechanism enables a row of push rods to intermittently apply force to the crossbar, the mobile frame, the movable rod, the hydraulic cylinder and the drill rod, prompting them to move inward, thereby significantly accelerating the cutting speed of the pile foundation and reducing the operation time; multiple drill rods are evenly distributed around the pile foundation to ensure that the cutting force is evenly distributed on the pile foundation. This design avoids the situation where the pile foundation is unevenly broken or deviates from the predetermined cutting line due to excessive pressure at a single point, thereby improving the cutting quality and effect. At the same time, the precise control of the contact between each drill rod and the pile foundation can more effectively control the release of force during the cutting process and reduce the occurrence of unexpected situations; because the cutting force is evenly distributed on multiple drill rods, the pressure on each drill rod is relatively small, which helps to reduce the wear and failure rate of the equipment and reduces the safety risks caused by equipment failure. At the same time, the precise control of the release of force during the cutting process can also reduce the occurrence of unexpected situations such as sudden breakage or displacement of the pile foundation, thereby ensuring the safety of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2It is a structural schematic diagram of the connecting block, the hydraulic cylinder, the first gear, the gear ring, the regulating motor, and the second gear in the present invention;

[0020] Figure 3 It is a structural schematic diagram of the hydraulic cylinder, the drill rod, the fixing plate, the connecting plate and the first supporting frame in the present invention;

[0021] Figure 4 It is a structural schematic diagram of the hydraulic cylinder, the fixed plate, the rotating shaft, the first gear, the first slider, the U-shaped plate, and the second slider in the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the connecting plate, the plug-in rod, the first supporting frame and the U-shaped plate in the present invention;

[0023] Figure 6 Based Figure 5 The enlarged view of point A in the middle;

[0024] Figure 7 It is a structural schematic diagram of the connecting plate, the supporting rod, the sliding rod, the moving frame, the first damping spring, the movable rod, and the sliding plate in the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the slide plate, the push rod, the counterweight, the servo motor, the rotating rod, and the linkage rod in the present invention;

[0026] Fig. 9 It is a structural schematic diagram of the connecting rod, the moving rod, the trapezoidal block and the cross rod in the present invention.

[0027] In the figure: 1, disc; 2, connecting block; 3, hydraulic cylinder; 4, drill rod; 21, adjustment slot; 22, first support frame; 23, second support frame; 24, positioning hole; 25, rotating shaft; 26, first gear; 27, first slider; 28, gear ring; 29, adjusting motor; 210, second gear; 31, fixing plate; 32, connecting plate; 33, U-shaped plate; 34, second slider; 35, sleeve; 36, plug rod; 37, first limit block; 38. connecting plate; 39. cylinder; 310. spring; 41. support rod; 42. slide rod; 43. moving frame; 45. movable rod; 46. first damping spring; 47. cross bar; 48. mounting plate; 49. moving rod; 410. trapezoidal block; 411. second limit block; 412. second damping spring; 413. sliding plate; 414. pushing rod; 415. counterweight block; 416. servo motor; 417. rotating rod; 418. connecting rod. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings of the specification. Obviously, the described embodiments are only 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 making creative work are within the scope of protection of the present invention.

[0029] Embodiment 1: Combination Figure 1-Figure 9 As shown, the present invention provides a technical solution: a pile cutter for construction engineering, comprising a disc 1, a plurality of connecting blocks 2 are evenly arranged around the disc 1, a hydraulic cylinder 3 is installed on each of the connecting blocks 2, and an output end of each hydraulic cylinder 3 is connected to a drill rod 4 for performing a cutting operation. In addition, one side of each hydraulic cylinder 3 is equipped with an adjustment component for adjusting the working angle of the drill rod 4;

[0030] An adjusting groove 21 is provided on the inner side of each connecting block 2 for rotational adjustment of the hydraulic cylinder 3 and the drill rod 4. The upper and lower ends of the outer side of the connecting block 2 are respectively fixedly connected to the first support frame 22 and the second support frame 23. A plurality of positioning holes 24 are provided on the side wall of the first support frame 22 for fixing and positioning other components. A rotating shaft 25 is rotatably connected to the first support frame 22. The bottom of the rotating shaft 25 is fixedly connected to a first slider 27 slidably connected to the hydraulic cylinder 3. The top of the rotating shaft 25 is fixedly connected to a first gear 26. The outer end of the first gear 26 is meshed with a gear ring 28. The gear ring 28 is designed to be rotatably mounted on the top of the disc 1. The outer end of the gear ring 28 is meshed with the second gear 210. The top of the second gear 210 is provided with an adjusting motor 29 fixedly mounted on the disc 1.

[0031] Turning on the adjustment motor 29 can drive the second gear 210 to rotate synchronously. When the second gear 210 rotates, it will drive the meshing ring gear 28 to rotate on the disc 1. The rotation of the ring gear 28 will drive the meshing first gear 26 to rotate, and then the first gear 26 drives the rotating shaft 25 and the first slider 27 to rotate synchronously. Through the movement of the first slider 27, the hydraulic cylinder 3 and the drill rod 4 can rotate synchronously, thereby realizing the adjustment of the working angles of the hydraulic cylinder 3 and the drill rod 4. This adjustment mechanism enables the drill rod 4 to effectively cut off the pile foundation at different working angles, thereby improving the flexibility and efficiency of the operation.

[0032] In the embodiment of the present invention, by starting the adjustment motor 29, the second gear 210 can be driven to rotate synchronously. Subsequently, the second gear 210 will drive the gear ring 28 meshing therewith, and the gear ring 28 is rotatably installed on the disc 1. The rotation of the gear ring 28 will drive the first gear 26 meshing therewith to rotate. The rotation of the first gear 26 will then drive the rotating shaft 25 and the first slider 27 to rotate synchronously. Through the action of the first slider 27, the hydraulic cylinder 3 and the drill rod 4 will also rotate synchronously. Such a design allows us to accurately adjust the working angles of the hydraulic cylinder 3 and the drill rod 4. By adjusting these angles, the drill rod 4 can cut the pile foundation at different working angles. Adjusting the working angle of the drill rod 4 means that the most suitable cutting angle can be selected according to the specific position and shape of the pile foundation. This adjustment capability greatly improves the flexibility of the operation. , making the operation more convenient and able to adapt to more diverse construction environments and needs. Different working angles can make the drill rod 4 more accurate and efficient when cutting the pile foundation. By adjusting the angle, it can be ensured that the drill rod 4 acts on the pile foundation in the best state, reducing energy loss and unnecessary wear during the cutting process, thereby improving the cutting efficiency and cutting quality. Traditional cutting operations may require multiple adjustments to the equipment position or angle to achieve effective cutting of the pile foundation. The present design can easily achieve this goal by adjusting the working angles of the hydraulic cylinder 3 and the drill rod 4, greatly reducing the difficulty and complexity of the operation. In addition, by adjusting the working angle, safety accidents caused by improper equipment position or improper operation can be avoided. At the same time, this design also helps to reduce the vibration and impact of the equipment during operation, thereby further protecting the safety of operators and equipment.

[0033] Embodiment 2: Combination Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, on the basis of the first embodiment, the upper and lower ends of the hydraulic cylinder 3 are respectively fixedly connected with fixed plates 31, wherein the lower fixed plate 31 is connected to the second support frame 23 by a transverse sliding manner, and the upper fixed plate 31 is connected to the rotating shaft 25 by a first slider 27 to achieve a transverse sliding connection, and a connecting plate 32 is specially provided on the outer side of the fixed plate 31, and the upper and lower ends of the connecting plate 32 are respectively fixedly connected with U-shaped plates 33, the upper U-shaped plate 33 is fixedly mounted on the rotating shaft 25, and one end of the lower U-shaped plate 33 is connected to the second support frame 23 by a rotating manner, and in addition, one end of the outer side of the fixed plate 31 is connected to the U-shaped plate 33 by a second slider 34 to achieve a transverse sliding connection;

[0034] The outer end of the connecting plate 32 is fixedly connected with a sleeve 35, and the upper part of the sleeve 35 is laterally slidably connected with a plug-in rod 36, and the other end of the plug-in rod 36 passes through the second slider 34 and is plugged into the positioning hole 24;

[0035] In the inner cavity of the sleeve 35, a first limit block 37 fixedly mounted on the plug rod 36 is provided, and a spring 310 sleeved on the plug rod 36 is provided on the outer side of the first limit block 37. Under the elastic force of the spring 310, the first limit block 37 and the plug rod 36 are pushed to move toward the first support frame 22. The outer end of the plug rod 36 is fixedly connected to a connecting plate 38, and the other end of the connecting plate 38 is provided with a cylinder 39 fixedly mounted on the connecting plate 32. When the angle of the hydraulic cylinder 3 needs to be adjusted, the connecting plate 38 is driven to move outward by the cylinder 39, so that the connecting plate 38 drives the connecting rod 36 and the first limit block 37 to move outward, and compresses the spring 310, so that the end of the connecting rod 36 disengages from the positioning hole 24, so that the connecting rod 36 is no longer engaged in the positioning hole 24, and then the hydraulic cylinder 3 is rotated to a suitable angle, and the cylinder 39 is turned on to drive the connecting plate 38 to move inward, so that the connecting plate 38 drives the connecting rod 36 and the first limit block 37 to move inward, so that the end of the connecting rod 36 is inserted into the positioning hole 24, completing the restriction of the hydraulic cylinder 3 and preventing it from rotating during work, affecting the subsequent cutting operation of the pile foundation.

[0036] In the embodiment of the present invention, during the process of adjusting the angle of the hydraulic cylinder 3, the connecting plate 38 needs to be moved outward by the action of the cylinder 39. This action will drive the plug rod 36 and the first limit block 37 to move outward together, and compress the spring 310 at the same time. As the spring 310 is compressed, the end of the plug rod 36 will be disengaged from the positioning hole 24, so that the plug rod 36 is no longer engaged in the positioning hole 24. After completing this step, the hydraulic cylinder 3 can be rotated to a suitable angle. After the rotation is completed, the cylinder 39 is started again, this time to move the connecting plate 38 inward. As the connecting plate 38 moves inward, the plug rod 36 and the first limit block 37 will also move inward, and finally the end of the plug rod 36 is reinserted into the positioning hole 24. Through such an operation, we have successfully restricted the hydraulic cylinder 3 and ensured that it will not rotate unnecessarily during operation. Such measures are crucial for subsequent pile foundation cutting operations, because they not only ensure the accuracy of the cutting operation, but also greatly improve the safety of the operation.

[0037] Example 3: Combination Figure 7 , Figure 8 , Fig. 9As shown, on the basis of the second embodiment, the design of the adjustment component includes support rods 41 fixedly mounted on both sides of the connecting plate 32, the support rods 41 are fixedly connected with slide rods 42, the slide rods 42 are slidably connected with a moving frame 43, and the inner side of the moving frame 43 is provided with a first damping spring 46 sleeved on the slide rod 42 to ensure that the moving frame 43 can obtain appropriate resistance during the sliding process on the slide rod 42, the inner side ends of the moving frames 43 on both sides are fixedly connected with movable rods 45 connected with the hydraulic cylinder 3 to ensure that the hydraulic cylinder 3 can effectively control the movement of the moving frame 43, and the bottoms of the two moving frames 43 are fixedly connected with cross bars 47 to enhance the stability and bearing capacity of the structure;

[0038] The connecting plate 32 is laterally slidably connected with a slide plate 413, and a row of push rods 414 are rotatably connected to the top of the slide plate 413. The positions of these push rods 414 and the cross bar 47 correspond to each other, ensuring that the push rods 414 can accurately contact the cross bar 47. A counterweight block 415 is fixedly connected to one end of the push rod 414. The counterweight block 415 can drive the push rod 414 to rotate outward by its own gravity, thereby pushing the cross bar 47. This design not only simplifies the mechanical structure, but also improves the response speed of the system and the accuracy of operation.

[0039] A servo motor 416 is fixedly installed at the bottom of the connecting plate 32, and a rotating rod 417 is fixedly connected to the output end of the servo motor 416. The other end of the rotating rod 417 is rotatably connected to a connecting rod 418. The other end of the connecting rod 418 is rotatably connected to the bottom of the sliding plate 413. By turning on the servo motor 416 to drive the rotating rod 417 to rotate synchronously, the rotating rod 417 cooperates with the connecting rod 418 to drive the sliding plate 413 to move back and forth on the connecting plate 32. This reciprocating movement enables the sliding plate 413 to drive the push rod 414 and the counterweight block 415 to move back and forth synchronously, thereby realizing the cross bar 47 and the moving plate 413. Precise control of the movable frame 43, the movable rod 45 and the hydraulic cylinder 3. When the push rod 414 moves to one side of the cross bar 47, it can intermittently push the cross bar 47, the movable frame 43, the movable rod 45 and the hydraulic cylinder 3 to move inward, and compress the first damping spring 46 to absorb the impact energy during the movement. When the push rod 414 moves to the other side, the push rod 414 rotates under the blocking force of the cross bar 47. As the push rod 414 moves and slides past the cross bar 47, the push rod 414 is reset under the gravity of the counterweight block 415, ensuring the stability and reliability of the system.

[0040] The support rod 41 is fixedly connected with a mounting plate 48, and a row of moving rods 49 are slidably connected to the mounting plate 48. A trapezoidal block 410 is fixedly connected to the bottom of the moving rod 49, and the positions of the trapezoidal block 410 and the moving frame 43 correspond to each other, ensuring the precise fit between the moving frame 43 and the trapezoidal block 410. The outer wall of the moving rod 49 is fixedly connected with a second limit block 411 located below the mounting plate 48, which is used to limit the moving range of the moving rod 49, ensuring the safety and reliability of the system. A second damping spring 412 is provided between the mounting plate 48 and the trapezoidal block 410. When the push rod 414 pushes the cross bar 47. When the movable frame 43 and the movable rod 45 move inward, the movable frame 43 moves from one trapezoidal block 410 to another trapezoidal block 410. When the movable frame 43 moves, it can push the trapezoidal block 410 and the movable rod 49 to move downward, and compress the second damping spring 412 to absorb the energy during the movement. After the movable frame 43 slides over the trapezoidal block 410, the trapezoidal block 410 is reset under the elastic force of the second damping spring 412, and at the same time, the bottom end of the movable frame 43 is pushed to fit with the trapezoidal block 410 under the elastic force of the first damping spring 46, thereby ensuring the precise control and stable operation of the system.

[0041] In the embodiment of the present invention, the servo motor 416 is started to drive the rotating rod 417 to perform synchronous rotational motion. During the movement, the rotating rod 417 closely cooperates with the connecting rod 418 to act on the sliding plate 413, so that it performs regular reciprocating sliding on the connecting plate 32. The reciprocating motion of the sliding plate 413 will drive the push rod 414 and the counterweight block 415 to perform corresponding synchronous reciprocating motion. When the push rod 414 moves to one side of the cross bar 47, a row of push rods 414 can The invention can intermittently apply force to the cross bar 47, the movable frame 43, the movable rod 45, the hydraulic cylinder 3 and the drill rod 4, so that they move inward and compress the first damping spring 46. As a result of this series of actions, the drill rod 4 moves toward the pile foundation and finally comes into close contact with the outer wall of the pile foundation. When all the drill rods 4 are in close contact with the outer wall of the pile foundation, they can apply pressure to the pile foundation synchronously or almost synchronously, thereby significantly accelerating the cutting speed and reducing the operation time. Multiple drill rods 4 are evenly distributed around the pile foundation, which can ensure the cutting speed. The breaking force is evenly distributed on the pile foundation, avoiding uneven pile foundation rupture or deviation from the predetermined truncation line due to excessive single-point pressure, thereby improving the truncation quality and effect. By accurately controlling the contact between each drill rod 4 and the pile foundation, the force release during the truncation process can be more effectively controlled to reduce the occurrence of unexpected situations, such as sudden rupture or deviation of the pile foundation, thereby ensuring the safety of the operators. Since the truncation force is evenly distributed on multiple drill rods 4, the pressure on each drill rod 4 is relatively small, which helps to reduce the wear and failure rate of the equipment and extend the service life of the equipment. In addition, this method can adapt to pile foundations of different diameters and shapes by simply adjusting the number and position of the drill rods 4, thereby improving the versatility and flexibility of the equipment. When the push rod 414 moves to the other side, the push rod 414 rotates under the blocking force of the cross bar 47. As the push rod 414 moves and slides past the cross bar 47, the push rod 414 is reset under the gravity of the counterweight block 415, and so on. The whole process forms an efficient circulation mechanism.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pile cutter for construction engineering, comprising a disc (1), characterized in that: The disk (1) is provided with connecting blocks (2) in a circular array, the connecting blocks (2) are provided with a hydraulic cylinder (3), the output end of the hydraulic cylinder (3) is provided with a drill rod (4), and one side of the hydraulic cylinder (3) is provided with an adjustment component; An adjusting groove (21) for the hydraulic cylinder (3) and the drill rod (4) to rotate is provided on the inner side of the connecting block (2); a first support frame (22) and a second support frame (23) are fixedly connected to the upper and lower ends of the outer side of the connecting block (2), respectively; a locating hole (24) is provided on the side wall of the first support frame (22) in a circumferential array; a rotating shaft (25) is rotatably connected to the first support frame (22); a first sliding block (27) slidably connected to the hydraulic cylinder (3) is fixedly connected to the bottom of the rotating shaft (25); a first gear (26) is fixedly connected to the top of the rotating shaft (25); an outer end of the first gear (26) is meshingly connected to a gear ring (28), and the gear ring (28) is rotatably mounted on the top of the disc (1); an outer end of the gear ring (28) is meshingly connected to a second gear (210), and an adjusting motor (29) fixedly mounted on the disc (1) is provided on the top of the second gear (210).

2. A pile cutter for construction engineering according to claim 1, characterized in that: The upper and lower ends of the hydraulic cylinder (3) are fixedly connected to a fixing plate (31); the lower fixing plate (31) is slidably connected to the second support frame (23) in a transverse manner; the upper fixing plate (31) is slidably connected to the rotating shaft (25) in a transverse manner via a first sliding block (27); a connecting plate (32) is arranged outside the fixing plate (31); the upper and lower ends of the connecting plate (32) are fixedly connected to a U-shaped plate (33); the upper U-shaped plate (33) is fixedly mounted on the rotating shaft (25); one end of the lower U-shaped plate (33) is rotatably connected to the second support frame (23); and one end of the outer side of the fixing plate (31) is slidably connected to the U-shaped plate (33) in a transverse manner via a second sliding block (34).

3. A pile cutter for construction engineering according to claim 2, characterized in that: The outer end of the connecting plate (32) is fixedly connected to a sleeve (35), and a plug-in rod (36) is laterally slidably connected to the sleeve (35). The other end of the plug-in rod (36) passes through the second slider (34) and is plugged into the positioning hole (24).

4. A pile cutter for construction engineering according to claim 3, characterized in that: The inner cavity of the sleeve (35) is provided with a first limit block (37) fixedly mounted on the plug rod (36); the outer side of the first limit block (37) is provided with a spring (310) sleeved on the plug rod (36); the outer end of the plug rod (36) is fixedly connected to a connecting plate (38); the other end of the connecting plate (38) is provided with a cylinder (39) fixedly mounted on the connecting plate (32).

5. A pile cutter for construction engineering according to claim 4, characterized in that: The adjustment assembly comprises a support rod (41) fixedly mounted on both sides of the connecting plate (32), a slide rod (42) fixedly connected to the support rod (41), a moving frame (43) slidably connected to the slide rod (42), a first damping spring (46) sleeved on the slide rod (42) being arranged inside the moving frame (43), a movable rod (45) connected to the hydraulic cylinder (3) being fixedly connected to the inner ends of the moving frames (43) on both sides, and a cross bar (47) being fixedly connected to the bottoms of the two moving frames (43).

6. A pile cutter for construction engineering according to claim 5, characterized in that: A sliding plate (413) is slidably connected to the connecting plate (32) in a transverse direction. A row of push rods (414) is rotatably connected to the top of the sliding plate (413). The positions of the push rods (414) and the cross bar (47) correspond to each other. A counterweight block (415) is fixedly connected to one end of the push rod (414).

7. A pile cutter for construction engineering according to claim 6, characterized in that: A servo motor (416) is fixedly mounted on the bottom of the connecting plate (32); a rotating rod (417) is fixedly connected to the output end of the servo motor (416); the other end of the rotating rod (417) is rotatably connected to a connecting rod (418); and the other end of the connecting rod (418) is rotatably connected to the bottom of the sliding plate (413).

8. A pile cutter for construction engineering according to claim 7, characterized in that: A mounting plate (48) is fixedly connected to the support rod (41), a row of moving rods (49) is slidably connected to the mounting plate (48), a trapezoidal block (410) is fixedly connected to the bottom of the moving rod (49), and the positions of the trapezoidal block (410) and the moving frame (43) correspond to each other, a second limiting block (411) located below the mounting plate (48) is fixedly connected to the outer wall of the moving rod (49), and a second damping spring (412) sleeved on the moving rod (49) is arranged between the mounting plate (48) and the trapezoidal block (410).

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