Screw pile head cutting-off device with automatic cutting state switching function

Abstract

The invention discloses a screw pile head cutting-off device with an automatic cutting state switching function, and relates to the technical field of screw pile heads, the screw pile head cutting-off device comprises a shell and supporting rods fixedly connected to the corners of the upper surface of the shell; the positioning mechanism is used for positioning the device to the top end of the screw pile head, by arranging the positioning mechanism, the device and the screw pile head can be connected together, and the device can be automatically aligned to the center of the top end of the screw pile head during working, so that when the pile head is subjected to surrounding cutting, the device can be used for cutting the screw pile head. The device can realize perfect circle rotation on the outer surface of the pile head; the cutting mechanism is used for conducting ring cutting work on a screw pile head, the clamping mechanism is used for clamping the device on the outer surface of the screw pile head and enabling the device to stably rotate on the outer surface of the pile head, a fixing box is fixedly connected to the inner wall of the shell, and the positioning mechanism is fixedly connected to the upper portion of the shell through a supporting rod. And the effect of cutting the screw pile heads with different diameters is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of screw pile heads, in particular to a screw pile head cutting device capable of switching cutting states autonomously. Background Art

[0002] Screw pile is a foundation treatment technology widely used in construction projects. The design and construction quality of its pile head directly affect the bearing capacity and stability of the entire pile foundation. The pile head of a screw pile usually refers to the part of the pile body that is connected to the cap or foundation structure. Its function is to transfer the load of the superstructure to the pile body and ensure that the load is evenly distributed during the construction process. The treatment of the pile head is crucial. First, the pile head should be kept flat to ensure that the contact surface with the cap fits tightly to avoid stress concentration caused by unevenness. Secondly, the concrete strength of the pile head must meet the design requirements, and its quality is usually guaranteed through maintenance and testing. In addition, the arrangement of the pile head steel bars must also comply with the specifications to ensure that it is effectively connected to the cap steel bars to enhance the seismic resistance and tensile resistance of the overall structure. After the construction is completed, the pile head is usually cut and cleaned to ensure that there is no debris and loose concrete on its surface. For projects with special geological conditions or high bearing capacity requirements, the pile head may also need to be reinforced, such as adding steel mesh or using high-strength concrete.

[0003] In the process of cutting the screw pile head, when encountering a pile head with a larger diameter and a smaller diameter of the cutting blade, the cutting blade cannot cover the entire cross section of the pile head at one time due to the insufficient diameter of the cutting blade, resulting in multiple cuts to complete the separation of the pile head, which not only prolongs the construction time, but also increases the difficulty of operation and labor costs. At the same time, multiple cuts are likely to cause uneven cuts, or even misalignment or deviation, affecting the connection quality between the pile head and the cap, and thus weakening the stability of the overall structure. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a screw pile head cutting device with autonomous switching cutting state, comprising a shell, and a support rod fixedly connected to the corner of the upper surface of the shell; The positioning mechanism is used to position the device at the top of the screw pile head. By setting the positioning mechanism, the device can be connected to the screw pile head and can automatically align with the center of the top of the screw pile head during operation, so that when the pile head is circumferentially cut, the device can achieve a perfect circular rotation on the outer surface of the pile head; The cutting mechanism is used to perform circumferential cutting on the head of the screw pile. By setting the cutting mechanism, the head of the screw pile can be directly cut and cut off when the diameter of the head of the screw pile is small. At the same time, when the diameter of the head of the screw pile is larger than the diameter of the cutting blade, the circumferential cutting of the head of the screw pile can be realized. The clamping mechanism is used to clamp the device on the outer surface of the screw pile head and enable the device to stably rotate on the outer surface of the pile head. By setting the clamping mechanism, the outer surface of the screw pile head can be clamped when it is necessary to perform circumferential cutting on the screw pile head, thereby increasing the stability of cutting when the device rotates around the screw pile head; A fixing box is fixedly connected to the inner wall of the shell, the positioning mechanism is fixedly connected to the upper part of the shell through a support rod, the cutting mechanism is fixedly connected to the upper surface of the shell, and the clamping mechanism is fixedly connected to the outer surface of the shell; The clamping mechanism comprises a squeezing mechanism, a stabilizing mechanism and a transmission mechanism.

[0005] Preferably, the positioning mechanism includes a connecting block, which is fixedly connected to the top of the support rod, the outer surface of the connecting block is fixedly connected to a first rolling bearing, the inner ring of the first rolling bearing is fixedly connected to an outer shell, the inner wall of the outer shell is fixedly connected to a positioning frame, and the upper surface of the positioning frame is fixedly connected to a pull rod.

[0006] Preferably, a first limiting tube passes through the outer surface of the positioning frame, a piston rod slides tightly in the inner cavity of the first limiting tube, one end of the piston rod located in the inner cavity of the positioning frame is fixedly connected to a clamping plate, a track groove is provided on the upper surface of the positioning frame, a moving rod is fixedly connected to the upper surface of the clamping plate, and the moving rod is slidably connected to the track groove provided on the upper surface of the positioning frame.

[0007] Preferably, a sealing ring is slidably connected to the inner cavity of the shell, and the sealing ring is sleeved on the outer surface of the positioning frame. The lower surface of the sealing ring is fixedly connected to a limiting ring, and the inner cavity of the limiting ring is rotatably connected to a first rotating ring. The lower surface of the first rotating ring is fixedly connected to a bent rod, and the end of the bent rod away from the first rotating ring is fixedly connected to a first internal threaded ring.

[0008] Preferably, the cutting mechanism includes a support plate, which is fixedly connected to the upper surface of the shell, and the top of the support plate is fixedly connected to a track frame, a first stepper motor is slidably connected to the inner cavity of the track frame, and a sliding block is symmetrically installed on the outer side of the first stepper motor, and the sliding block is slidably connected to the inner cavity of the track frame, a second internal threaded ring passes through the outer surface of the track frame, and a first reciprocating screw is threadedly connected to the inner cavity of the second internal threaded ring, and the first reciprocating screw is fixedly connected to a rotating block at one end of the first reciprocating screw close to the first stepper motor, and a rotating sleeve is rotatably connected to the outer surface of the rotating block, and the rotating sleeve is fixedly connected to the outer surface of the first stepper motor.

[0009] Preferably, a second stepper motor is fixedly connected to the upper surface of the track frame, a second reciprocating screw is installed on the output end of the second stepper motor through a coupling, the second reciprocating screw is threadedly connected to the first internal threaded ring, the outer surface of the second reciprocating screw is fixedly connected to the first roller, the output end of the first stepper motor is installed with a second rotating rod through a coupling, the bottom end of the second rotating rod is provided with a cutting blade, the cutting blade is located in the inner cavity of the fixed box, the outer surface of the second rotating rod is fixedly connected to the second rolling bearing, the outer surface of the second rolling bearing is fixedly connected to the first sliding rod, the outer surface of the first sliding rod is provided with a limiting groove, and the limiting groove is fixedly connected to the inner surface of the fixed box.

[0010] Preferably, the extrusion mechanism includes a limit frame, the limit frame is fixedly connected to the outer surface of the shell, the inner cavity of the limit frame is rotatably connected to a rotating column, the outer surface of the rotating column is fixedly connected to a rotating frame, the outer side surface of the rotating frame is fixedly connected to a locking plate, the end of the rotating column is symmetrically fixedly connected to a limit ball, the outer surface of the limit ball is rotatably connected to a rotating ring, the upper surface of the rotating ring is fixedly connected to the locking frame, the locking frame is extruded and adapted to the outer surface of the locking plate, the side of the rotating frame away from the rotating column is fixedly connected to a supporting frame, the end of the supporting frame is fixedly connected to a connecting frame, and the inner wall of the connecting frame is fixedly connected to a limit ring.

[0011] Preferably, a cylinder is rotatably connected to the inner cavity of the limit ring, a first extrusion plate is fixedly connected to the outer surface of the limit ring, a second extrusion plate is fixedly connected to the outer surface of the cylinder, a first spring is fixedly connected to the outer side surface of the second extrusion plate, an end of the first spring is fixedly connected to the first extrusion plate, a third rotating rod is fixedly connected to the bottom end of the cylinder, a support frame is fixedly connected to the outer surface of the third rotating rod, a protective frame is fixedly connected to the inner wall of the support frame, a circular ring is fixedly connected to the inner wall of the support frame, and a spherical wheel is rotatably connected to the inner cavity of the circular ring.

[0012] Preferably, the stabilizing mechanism includes a connecting frame, which is fixedly connected to the surface of the connecting frame, and the end of the connecting frame is fixedly connected to a stabilizing box, a second limiting tube is fixedly connected to the inner wall of the stabilizing box, and the second limiting tube and the second limiting tube are slidably connected to the inner cavity of the second limiting tube. The end of the second sliding rod is fixedly connected to a second spring, and the second sliding rod is located on one end of the outer surface of the second limiting tube and is fixedly connected to a limiting column, the outer surface of the limiting column is rotatably connected to a second rotating ring, the outer surface of the second rotating ring is fixedly connected to a connecting rod, and the end of the connecting rod is fixedly connected to an extrusion cylinder.

[0013] Preferably, the transmission mechanism includes a third limiting tube, the third limiting tube is fixedly connected to the upper surface of the stabilization box, the third limiting tube is slidably connected to the inner cavity of the third limiting tube, the end of the third sliding rod is fixedly connected to a third spring, the upper surface of the third sliding rod is fixedly connected to a fixing plate, the end of the fixing plate is fixedly connected to the limiting rod, the outer surface of the limiting rod is rotatably connected to a second roller, the top of the limiting rod is fixedly connected to a handle, and the second roller is connected to the first roller by a belt.

[0014] The present invention provides a screw pile head cutting device with the ability to switch cutting states autonomously. It has the following beneficial effects: 1. The screw pile head cutting device with autonomous switching cutting state can connect the device to the screw pile head by setting a positioning mechanism, and can automatically align with the center of the top of the screw pile head during operation, so that when the pile head is circumferentially cut, the device can realize a perfect circular rotation on the outer surface of the pile head.

[0015] 2. The screw pile head cutting device with autonomous switching cutting state can directly cut and cut off the screw pile head when the screw pile head diameter is small by setting a cutting mechanism. At the same time, it can realize the surrounding cutting of the screw pile head when the screw pile head diameter is larger than the cutting blade diameter.

[0016] 3. The screw pile head cutting device with autonomous switching cutting state can clamp the outer surface of the screw pile head when it is necessary to perform circumferential cutting on the screw pile head by setting a clamping mechanism, thereby increasing the stability during cutting when the device rotates around the screw pile head.

[0017] Fourth, the screw pile head cutting device with autonomous switching cutting state can extrude the outer surface of the screw pile head by setting an extrusion mechanism, and the device can be positioned on the outer surface of the screw pile head by setting two extrusion mechanisms. The rotating column can be limited by setting a limit frame, so that the rotating column drives the rotating frame to rotate stably. By setting a clamping frame and a clamping plate, the clamping plate can be squeezed when the clamping frame rotates, so that the rotating frame can rotate, and when the clamping frame enters the groove of the clamping plate, the rotating frame is prevented from rotating.

[0018] 5. The screw pile head cutting device with autonomous switching cutting state can utilize the force of the rotation of the first roller to apply a friction force to the outer surface of the screw pile head by setting a transmission mechanism, thereby enabling the device to rotate around the screw pile head and adapt to screw pile heads of different diameters and thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the external structure of a screw pile head cutting device capable of switching cutting states autonomously according to the present invention; Figure 2 It is a structural side view of a screw pile head cutting device capable of switching cutting states autonomously according to the present invention; Figure 3 It is a schematic diagram of the positioning mechanism structure of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the positioning mechanism of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure in the middle; Figure 6 It is a schematic diagram of the cutting mechanism structure of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the cutting mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of the clamping mechanism of the present invention; Fig. 9 It is a schematic diagram of the structure of the extrusion mechanism of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the extrusion mechanism of the present invention; Fig.11 It is a schematic diagram of the local structure of the extrusion mechanism of the present invention; Fig.12 It is a schematic diagram of the structure of the stabilizing mechanism of the present invention; Fig.13 It is a schematic diagram of the transmission mechanism structure of the present invention; Fig.14 It is a schematic diagram of the cross-sectional structure of the transmission mechanism of the present invention.

[0020] In the figure: 1, housing; 2, support rod; 3, positioning mechanism; 4, fixing box; 5, cutting mechanism; 6, clamping mechanism; 31, connecting block; 32, first rolling bearing; 33, housing; 34, positioning frame; 35, pull rod; 36, track groove; 37, first limit tube; 38, piston rod; 39, clamping plate; 310, moving rod; 311, sealing ring; 312, limit ring; 313, first rotating ring; 314, bending rod; 315, first internal thread ring; 51. Support plate; 52. Track frame; 53. First stepper motor; 54. Sliding block; 55. Second internal thread ring; 56. First reciprocating screw rod; 57. Rotating block; 58. Rotating sleeve; 59. Second stepper motor; 511. Second reciprocating screw rod; 512. First roller; 513. Second rotating rod; 514. Cutting blade; 515. Second rolling bearing; 516. First sliding rod; 517. Limiting groove; 61. Extrusion mechanism; 62. Stabilization mechanism; 63 , transmission mechanism; 611, limit frame; 612, rotating column; 613, rotating frame; 614, positioning plate; 615, limiting ball; 616, rotating circle; 617, positioning frame; 618, supporting frame; 619, connecting frame; 6110, limiting ring; 6111, first extrusion plate; 6112, cylinder; 6113, second extrusion plate; 6114, first spring; 6115, third rotating rod; 6116, supporting frame; 6117, protective frame; 6118 , annular ring; 6119, spherical wheel; 621, connecting frame; 622, stabilizing box; 623, second limiting tube; 624, second sliding rod; 625, second spring; 626, limiting column; 627, second rotating ring; 628, connecting rod; 629, extrusion cylinder; 631, third limiting tube; 632, third sliding rod; 633, third spring; 634, fixing plate; 635, limiting rod; 636, second roller; 637, handle; 638, belt. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses. The first embodiment, as Figure 1-Figure 14 As shown, the present invention provides a technical solution: a screw pile head cutting device with autonomous switching cutting state, comprising a shell 1, and a support rod 2 fixedly connected to the corner of the upper surface of the shell 1; The positioning mechanism 3 is used to position the device at the top of the screw pile head. By setting the positioning mechanism 3, the device can be connected to the screw pile head and can automatically align with the center of the top of the screw pile head during operation, so that when the pile head is cut around, the device can achieve a perfect circle rotation on the outer surface of the pile head, thereby; The cutting mechanism 5 is used to perform circumferential cutting on the head of the screw pile. By setting the cutting mechanism 5, when the diameter of the head of the screw pile is small, the head of the screw pile can be directly cut and cut off. At the same time, when the diameter of the head of the screw pile is larger than the diameter of the cutting blade, the circumferential cutting of the head of the screw pile can be realized. The clamping mechanism 6 is used to clamp the device on the outer surface of the screw pile head and enable the device to stably rotate on the outer surface of the pile head. By setting the clamping mechanism 6, when it is necessary to perform circumferential cutting on the screw pile head, the outer surface of the screw pile head can be clamped, thereby increasing the stability of cutting when the device rotates around the screw pile head; The inner wall of the housing 1 is fixedly connected with a fixing box 4, the positioning mechanism 3 is fixedly connected to the upper part of the housing 1 through the support rod 2, the cutting mechanism 5 is fixedly connected to the upper surface of the housing 1, and the clamping mechanism 6 is fixedly connected to the outer surface of the housing 1; The clamping mechanism 6 includes a pressing mechanism 61 , a stabilizing mechanism 62 and a transmission mechanism 63 .

[0022] The positioning mechanism 3 includes a connecting block 31, which is fixedly connected to the top of the support rod 2. The outer surface of the connecting block 31 is fixedly connected to a first rolling bearing 32, the inner ring of the first rolling bearing 32 is fixedly connected to a shell 33, the inner wall of the shell 33 is fixedly connected to a positioning frame 34, and the upper surface of the positioning frame 34 is fixedly connected to a pull rod 35. By providing the first rolling bearing 32, stable rotation can be generated between the connecting block 31 and the shell 33, thereby enabling stable rotation between the shell 1 and the positioning mechanism 3. By providing the pull rod 35, it is convenient for operators to install the device on the head of the screw pile. The top of the positioning frame 34 is penetrated by a first limiting tube 37 on the outer surface of the positioning frame 34, and a piston rod 38 is tightly slidably arranged in the inner cavity of the first limiting tube 37. One end of the piston rod 38 located in the inner cavity of the positioning frame 34 is fixedly connected with a clamping plate 39, and a track groove 36 is provided on the upper surface of the positioning frame 34. A moving rod 310 is fixedly connected to the upper surface of the clamping plate 39, and the moving rod 310 is slidably connected to the track groove 36 provided on the upper surface of the positioning frame 34. By setting the first limiting tube 37, the piston rod 38 can be limited, so that the piston rod 38 can generate stable lateral movement in the inner cavity of the first limiting tube 37. The piston rod 38 It is in tight contact with the inner wall of the first limiting tube 37, so when air flows through the first limiting tube 37, the piston rod 38 will be squeezed. By setting the clamping plate 39, when the piston rod 38 is affected by the air pressure and moves, the clamping plate 39 can be moved toward the outer surface of the screw pile head, and then under the action of multiple clamping plates 39, the clamping work of the screw pile head is completed. By setting the track groove 36 and the moving rod 310, the clamping plate 39 can be stably moved. A sealing ring 311 is slidably connected to the inner cavity of the shell 33. The sealing ring 311 is sleeved on the outer surface of the positioning frame 34, and the lower surface of the sealing ring 311 is fixed A limit ring 312 is connected, and a first rotating ring 313 is rotatably connected to the inner cavity of the limit ring 312. A bent rod 314 is fixedly connected to the lower surface of the first rotating ring 313. The end of the bent rod 314 away from the first rotating ring 313 is fixedly connected to the first internal threaded ring 315. By setting a sealing ring 311, the air between the outer shell 33 and the positioning frame 34 can be squeezed when moving upward, thereby changing the internal air pressure. By setting the first rotating ring 313, a stable rotation can be generated in the inner cavity of the limit ring 312, so that the bent rod 314 and the first internal threaded ring 315 can rotate around the outer shell 33.

[0023] The cutting mechanism 5 includes a support plate 51, which is fixedly connected to the upper surface of the shell 1, and a track frame 52 is fixedly connected to the top of the support plate 51. A first stepper motor 53 is slidably connected to the inner cavity of the track frame 52, and a sliding block 54 is symmetrically installed on the outer side of the first stepper motor 53. The sliding block 54 is slidably connected to the inner cavity of the track frame 52. A second internal thread ring 55 runs through the outer surface of the track frame 52, and a first reciprocating screw rod 56 is threadedly connected to the inner cavity of the second internal thread ring 55. A rotating block 57 is fixedly connected to one end of the first reciprocating screw rod 56 close to the first stepper motor 53, and a rotating sleeve 58 is rotatably connected to the outer surface of the rotating block 57. The rotating sleeve 58 is fixedly connected to the first stepper motor 53. The outer surface of the stepper motor 53 can limit the first stepper motor 53 by setting the track frame 52, so that the first stepper motor 53 can generate stable movement in its inner cavity, thereby changing the distance between the first stepper motor 53 and the screw pile head. By setting the sliding block 54, the sliding stability of the first stepper motor 53 in the inner cavity of the track frame 52 can be increased. By setting the second internal thread ring 55, the first reciprocating screw rod 56 can be limited, so that the first reciprocating screw rod 56 can generate lateral movement in the inner cavity of the second internal thread ring 55 when rotating, thereby pulling and squeezing the first stepper motor 53, and finally changing the position of the first stepper motor 53 in the inner cavity of the track frame 52. The upper surface of the track frame 52 is fixedly connected with the first A second stepper motor 59 is provided, and a second reciprocating screw rod 511 is installed at the output end of the second stepper motor 59 through a coupling. The second reciprocating screw rod 511 is threadedly connected to the first internal thread ring 315. The outer surface of the second reciprocating screw rod 511 is fixedly connected with the first roller 512. By setting the second stepper motor 59, the second reciprocating screw rod 511 can produce a slow rotation when working. By setting the second reciprocating screw rod 511, the first internal thread ring 315 can produce an up and down movement effect on the outer surface of the second reciprocating screw rod 511 when rotating. A section of non-threaded area is provided on the top of the second reciprocating screw rod 511. When the first internal thread ring 315 moves to the non-threaded area, it will no longer move on the second reciprocating screw rod. The outer surface of the reciprocating screw rod 511 moves upward, and only when the second reciprocating screw rod 511 is reversed, it will move downward again. The output end of the first stepper motor 53 is installed with a second rotating rod 513 through a coupling, and the bottom end of the second rotating rod 513 is provided with a cutting blade 514, and the cutting blade 514 is located in the inner cavity of the fixed box 4. The outer surface of the second rotating rod 513 is fixedly connected with a second rolling bearing 515, and the outer surface of the second rolling bearing 515 is fixedly connected with a first sliding rod 516. The outer surface of the first sliding rod 516 is sleeved with a limiting groove 517, and the limiting groove 517 is fixedly connected to the inner surface of the fixed box 4. By setting the second rotating rod 513, when the first stepper motor 53 starts to work,The second rotating rod 513 drives the cutting blade 514 to rotate, so that the cutting blade 514 cuts the head of the screw pile. By setting the second rolling bearing 515, the first sliding rod 516 will not rotate when the second rotating rod 513 rotates. By setting the limiting groove 517, the first sliding rod 516 can be limited so that the first sliding rod 516 can move laterally in the inner cavity of the limiting groove 517, so that the first stepper motor 53 can move laterally stably.

[0024] The extrusion mechanism 61 includes a limit frame 611, which is fixedly connected to the outer surface of the shell 1. A rotating column 612 is rotatably connected to the inner cavity of the limit frame 611. A rotating frame 613 is fixedly connected to the outer surface of the rotating column 612. A locking plate 614 is fixedly connected to the outer side of the rotating frame 613. The ends of the rotating column 612 are symmetrically fixedly connected to a limit ball 615. The outer surface of the limit ball 615 is rotatably connected to a rotating ring 616. The upper surface of the rotating ring 616 is fixedly connected to a locking frame 617. The locking frame 617 is squeezed and adapted with the outer surface of the locking plate 614. The side of the rotating frame 613 away from the rotating column 612 is fixedly connected to a support frame 618. The end of 618 is fixedly connected with a connecting frame 619, and the inner wall of the connecting frame 619 is fixedly connected with a limiting ring 6110. By setting the squeezing mechanism 61, the outer surface of the screw pile head can be squeezed, and the two squeezing mechanisms 61 are set to achieve the effect of positioning the device on the outer surface of the screw pile head. By setting the limiting frame 611, the rotating column 612 can be limited, so that the rotating column 612 drives the rotating frame 613 to produce stable rotation. By setting the locking frame 617 and the locking plate 614, when the locking frame 617 rotates, the locking plate 614 can be squeezed, so that the rotating frame 613 can rotate, and when the locking frame 617 enters the groove of the locking plate 614, the rotating frame is prevented from rotating. 613 generates rotation, the inner cavity of the limit ring 6110 is rotatably connected to a cylinder 6112, the outer surface of the limit ring 6110 is fixedly connected to a first extrusion plate 6111, the outer surface of the cylinder 6112 is fixedly connected to a second extrusion plate 6113, the outer side surface of the second extrusion plate 6113 is fixedly connected to a first spring 6114, the end of the first spring 6114 is fixedly connected to the first extrusion plate 6111, the bottom end of the cylinder 6112 is fixedly connected to a third rotation rod 6115, the outer surface of the third rotation rod 6115 is fixedly connected to a support frame 6116, the inner wall of the support frame 6116 is fixedly connected to a protective frame 6117, the inner wall of the support frame 6116 is fixedly connected to a circular Ring 6118, the inner cavity of the circular ring 6118 is rotatably connected with a spherical wheel 6119, and by setting a limiting ring 6110, the cylinder 6112 can be limited so that the cylinder 6112 can rotate stably. By setting a first extrusion plate 6111, a second extrusion plate 6113 and a first spring 6114, the cylinder 6112 can always be subjected to an extrusion force, so that the third rotating rod 6115 drives the support frame 6116 to rotate and move toward the outer surface of the screw pile head. By setting a circular ring 6118, the spherical wheel 6119 can be limited so that the spherical wheel 6119 can rotate stably, and when contacting and rotating around the screw pile head, the spherical wheel 6119 rolls on the outer surface of the screw pile head.

[0025] The stabilizing mechanism 62 includes a connecting frame 621, which is fixedly connected to the surface of the connecting frame 619, and a stabilizing box 622 is fixedly connected to the end of the connecting frame 621, and a second limiting tube 623 is fixedly connected to the inner wall of the stabilizing box 622, and the second limiting tube 623, the inner cavity of the second limiting tube 623 is slidably connected to a second sliding rod 624, and the end of the second sliding rod 624 is fixedly connected to a second spring 625, and the second sliding rod 624 is located at one end of the outer surface of the second limiting tube 623 and is fixedly connected to a limiting column 626, the outer surface of the limiting column 626 is rotatably connected to a second rotating ring 627, and the outer surface of the second rotating ring 627 is fixedly connected to a connecting rod 626. The connecting rod 628 has an end fixedly connected with an extrusion cylinder 629. By setting a second limiting tube 623, the second sliding rod 624 can be limited so that the second sliding rod 624 can move stably in the inner cavity of the second limiting tube 623. By setting a second spring 625, the second sliding rod 624 can be squeezed so that the second sliding rod 624 is always subjected to an extrusion force toward the outer surface of the screw pile head. By setting a limiting column 626, the second rotating ring 627 can drive the connecting rod 628 and the extrusion cylinder 629 to rotate stably, so that when the device rotates around the screw pile head, the extrusion cylinder 629 is in tight contact with the outer surface of the screw pile head and rotates.

[0026] The transmission mechanism 63 includes a third limiting tube 631, which is fixedly connected to the upper surface of the stabilizing box 622. A third sliding rod 632 is slidably connected to the inner cavity of the third limiting tube 631. A third spring 633 is fixedly connected to the end of the third sliding rod 632. A fixing plate 634 is fixedly connected to the upper surface of the third sliding rod 632. A limiting rod 635 is fixedly connected to the end of the fixing plate 634. A second roller 636 is rotatably connected to the outer surface of the limiting rod 635. A handle 637 is fixedly connected to the top of the limiting rod 635. The second roller 636 is connected to the first roller 512 via a belt 638. By setting the transmission mechanism 63, the force of the rotation of the first roller 512 can be used to move the device in a certain direction. A friction force is applied to the outer surface of the screw pile head, so that the device can rotate around the screw pile head and can adapt to screw pile heads of different diameters and thicknesses. By setting the third limiting tube 631, the third sliding rod 632 can be limited, so that the third sliding rod 632 can produce lateral movement in the inner cavity of the third limiting tube 631. By setting the third spring 633, the third sliding rod 632 can be pulled so that the third sliding rod 632 is always subjected to a pulling force toward the inner wall of the third limiting tube 631. By setting the second roller 636 and the belt 638, when the first roller 512 rotates, the belt 638 also rotates, thereby applying a friction force on the outer surface of the screw pile head, and finally causing the device to rotate around the screw pile head.

[0027] Working principle: When in use, the operator pulls the pull rod 35, and the outer shell 33 is sleeved on the outer surface of the screw pile head, and a plurality of clamping plates 39 are sleeved on the outer surface of the screw pile head. Then the operator connects the second stepping motor 59 to the power supply and turns on the switch, so that the second reciprocating screw 511 rotates. When the second reciprocating screw 511 rotates, the first internal threaded ring 315 moves upward. Under the pressure, the sealing ring 311 moves upward in the inner cavity of the outer shell 33 and the positioning frame 34, thereby compressing the air inside. Under the action of pressure, the air enters the interior through the opening of the first limiting tube 37, thereby causing the piston rod 38 to move laterally, and finally causing the clamping plates 39 to squeeze the outer surface of the screw pile head, thereby achieving the positioning of the screw pile head. When the diameter of the screw pile head is small, the operator connects the first stepper motor 53 to the power supply and turns on the switch, so that the second rotating rod 513 drives the cutting blade 514 to rotate, and then the operator rotates the first reciprocating screw rod 56, so that the sliding block 54 on the outer side of the first stepper motor 53 moves horizontally in the inner cavity of the track frame 52, so that the cutting blade 514 cuts the screw pile head; When the diameter of the screw pile head is larger, the operator repeats the above work until the cutting blade 514 can no longer move, and then the operator rotates the rotating frame 613 and connects the positioning frame 617 with the positioning plate 614. Under the influence of the elastic potential energy of the first spring 6114, the third rotating rod 6115 drives the supporting frame 6116 to rotate, and makes the spherical wheel 6119 tightly contact with the outer surface of the screw pile head. At the same time, under the action of the second spring 625, the second sliding rod 624 drives the limiting column 626 to move toward the outer surface of the screw pile head, so that the extrusion cylinder 629 contacts with the outer surface of the screw pile head. Then the operator pulls the handle 637 and makes the belt 638 contact with the outer surface of the screw pile head. When the first roller 512 rotates, it will drive the belt 638 to rotate, thereby generating a friction force with the outer surface of the screw pile head. The friction force will drive the device to rotate around the screw pile head, so that the cutting blade 514 surrounds and cuts the screw pile head.

[0028] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A screw pile head cutting device with autonomous switching cutting state, characterized in that: include: A housing (1), and a support rod (2) fixedly connected to a corner of an upper surface of the housing (1); A positioning mechanism (3) for positioning the device at the top of the screw pile head; A cutting mechanism (5) for performing a circular cutting operation on the head of the screw pile; A clamping mechanism (6) is used to clamp the device on the outer surface of the screw pile head and enable the device to stably rotate on the outer surface of the pile head; A fixing box (4) is fixedly connected to the inner wall of the shell (1), the positioning mechanism (3) is fixedly connected to the upper part of the shell (1) via a support rod (2), the cutting mechanism (5) is fixedly connected to the upper surface of the shell (1), and the clamping mechanism (6) is fixedly connected to the outer surface of the shell (1); The clamping mechanism (6) comprises a squeezing mechanism (61), a stabilizing mechanism (62) and a transmission mechanism (63).

2. A screw pile head cutting device with autonomous switching cutting state according to claim 1, characterized in that: The positioning mechanism (3) comprises a connecting block (31), the connecting block (31) is fixedly connected to the top end of the support rod (2), the outer surface of the connecting block (31) is fixedly connected to a first rolling bearing (32), the inner ring of the first rolling bearing (32) is fixedly connected to a housing (33), the inner wall of the housing (33) is fixedly connected to a positioning frame (34), and the upper surface of the positioning frame (34) is fixedly connected to a pull rod (35).

3. A screw pile head cutting device with autonomous switching cutting state according to claim 2, characterized in that: A first limiting tube (37) passes through the outer surface of the positioning frame (34); a piston rod (38) slides tightly in the inner cavity of the first limiting tube (37); one end of the piston rod (38) located in the inner cavity of the positioning frame (34) is fixedly connected to a clamping plate (39); a track groove (36) is provided on the upper surface of the positioning frame (34); a moving rod (310) is fixedly connected to the upper surface of the clamping plate (39); and the moving rod (310) is slidably connected to the track groove (36) provided on the upper surface of the positioning frame (34).

4. A screw pile head cutting device with autonomous switching cutting state according to claim 3, characterized in that: A sealing ring (311) is slidably connected to the inner cavity of the shell (33), the sealing ring (311) is sleeved on the outer surface of the positioning frame (34), the lower surface of the sealing ring (311) is fixedly connected to a limiting ring (312), the inner cavity of the limiting ring (312) is rotatably connected to a first rotating ring (313), the lower surface of the first rotating ring (313) is fixedly connected to a bent rod (314), and one end of the bent rod (314) away from the first rotating ring (313) is fixedly connected to a first internal threaded ring (315).

5. A screw pile head cutting device with autonomous switching cutting state according to claim 4, characterized in that: The cutting mechanism (5) comprises a support plate (51), the support plate (51) being fixedly connected to the upper surface of the housing (1), the top end of the support plate (51) being fixedly connected to a track frame (52), the inner cavity of the track frame (52) being slidably connected to a first stepper motor (53), the outer side surface of the first stepper motor (53) being symmetrically mounted with a sliding block (54), the sliding block (54) being slidably connected to the inner cavity of the track frame (52), the outer surface of the track frame (52) being penetrated by a second internal thread ring (55), the inner cavity of the second internal thread ring (55) being threadedly connected to a first reciprocating screw rod (56), one end of the first reciprocating screw rod (56) close to the first stepper motor (53) being fixedly connected to a rotating block (57), the outer surface of the rotating block (57) being rotatably connected to a rotating sleeve (58), the rotating sleeve (58) being fixedly connected to the outer surface of the first stepper motor (53).

6. A screw pile head cutting device with autonomous switching cutting state according to claim 5, characterized in that: A second stepper motor (59) is fixedly connected to the upper surface of the track frame (52); a second reciprocating screw rod (511) is installed at the output end of the second stepper motor (59) via a coupling; the second reciprocating screw rod (511) is threadedly connected to the first internal thread ring (315); a first roller (512) is fixedly connected to the outer surface of the second reciprocating screw rod (511); a second rotating rod (513) is installed at the output end of the first stepper motor (53) via a coupling; a cutting blade (514) is provided at the bottom end of the second rotating rod (513); the cutting blade (514) is located in the inner cavity of the fixed box (4); a second rolling bearing (515) is fixedly connected to the outer surface of the second rolling bearing (515); a first sliding rod (516) is fixedly connected to the outer surface of the first sliding rod (516); a limiting groove (517) is sleeved on the outer surface of the first sliding rod (516); the limiting groove (517) is fixedly connected to the inner surface of the fixed box (4).

7. A screw pile head cutting device with autonomous switching cutting state according to claim 6, characterized in that: The extrusion mechanism (61) comprises a limit frame (611), the limit frame (611) is fixedly connected to the outer surface of the shell (1), a rotating column (612) is rotatably connected to the inner cavity of the limit frame (611), a rotating frame (613) is fixedly connected to the outer surface of the rotating column (612), a locking plate (614) is fixedly connected to the outer side surface of the rotating frame (613), and a limit ball (615) is symmetrically fixedly connected to the end of the rotating column (612), and the limit ball (615) is fixedly connected to the outer surface of the rotating column (612). ) is rotatably connected to the outer surface of a rotating ring (616), the upper surface of the rotating ring (616) is fixedly connected to a positioning frame (617), the positioning frame (617) is extruded and adapted to the outer surface of the positioning plate (614), the side of the rotating frame (613) away from the rotating column (612) is fixedly connected to a supporting frame (618), the end of the supporting frame (618) is fixedly connected to a connecting frame (619), and the inner wall of the connecting frame (619) is fixedly connected to a limiting ring (6110).

8. The screw pile head cutting device with autonomous switching cutting state according to claim 7, characterized in that: A cylinder (6112) is rotatably connected to the inner cavity of the limiting ring (6110), a first extrusion plate (6111) is fixedly connected to the outer surface of the limiting ring (6110), a second extrusion plate (6113) is fixedly connected to the outer surface of the cylinder (6112), a first spring (6114) is fixedly connected to the outer side surface of the second extrusion plate (6113), an end of the first spring (6114) is fixedly connected to the first extrusion plate (6111), a third rotating rod (6115) is fixedly connected to the bottom end of the cylinder (6112), a support frame (6116) is fixedly connected to the outer surface of the third rotating rod (6115), a protective frame (6117) is fixedly connected to the inner wall of the support frame (6116), a circular ring (6118) is fixedly connected to the inner wall of the support frame (6116), and a spherical wheel (6119) is rotatably connected to the inner cavity of the circular ring (6118).

9. The screw pile head cutting device with autonomous switching cutting state according to claim 8, characterized in that: The stabilizing mechanism (62) comprises a connecting frame (621), the connecting frame (621) being fixedly connected to the surface of the connecting frame (619), the end of the connecting frame (621) being fixedly connected to a stabilizing box (622), the inner wall of the stabilizing box (622) being fixedly connected to a second limiting tube (623), the second limiting tube (623), the inner cavity of the second limiting tube (623) being slidably connected to a second sliding rod (624), the end of the second sliding rod (624) being fixedly connected to a second spring (625), one end of the second sliding rod (624) being located on the outer surface of the second limiting tube (623) being fixedly connected to a limiting column (626), the outer surface of the limiting column (626) being rotatably connected to a second rotating ring (627), the outer surface of the second rotating ring (627) being fixedly connected to a connecting rod (628), and the end of the connecting rod (628) being fixedly connected to an extrusion cylinder (629).

10. The screw pile head cutting device with autonomous switching cutting state according to claim 9, characterized in that: The transmission mechanism (63) comprises a third position limiting tube (631), the third position limiting tube (631) is fixedly connected to the upper surface of the stabilizing box (622), a third sliding rod (632) is slidably connected to the inner cavity of the third position limiting tube (631), the end of the third sliding rod (632) is fixedly connected to a third spring (633), the upper surface of the third sliding rod (632) is fixedly connected to a fixing plate (634), the end of the fixing plate (634) is fixedly connected to a position limiting rod (635), the outer surface of the position limiting rod (635) is rotatably connected to a second roller (636), the top of the position limiting rod (635) is fixedly connected to a handle (637), and the second roller (636) is connected to the first roller (512) via a belt (638).

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