A split-type hobbing cutter and its disassembly / assembly device

Abstract

A split-type hob and its disassembly / removal device, belonging to the field of mechanical equipment, is used to solve the problem of difficult hob replacement in existing technologies. It includes a cutter ring composed of several arc-shaped cutter segments. Each arc-shaped cutter segment has a wedge fixed to one end and a slanted groove at the other end. The wedges of adjacent arc-shaped cutter segments are inserted into the slanted grooves. Both the wedges and the slanted grooves have through holes for screws to pass through, with the axis of the through holes perpendicular to the axis of the cutter ring. The split-type hob of this invention is easy to fix, and the wedges are easy to disassemble. Any worn arc-shaped cutter segment can be removed for replacement without removing the entire cutter ring, allowing other arc-shaped cutter segments to continue to be used, saving costs. The wedges and slanted grooves cooperate to ensure a stable connection and prevent them from easily falling off during operation.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment, specifically to a split-type hobbing cutter and its assembly / disassembly device. Background Technology

[0002] Tunnel boring machines (TBMs) are currently the mainstream tunnel excavation equipment. Their tunneling capacity comes from the cutterhead at the front end. Several cutters are installed on the cutterhead according to the geological conditions. When the TBM is tunneling, as the cutterhead rotates, the cutters revolve around the central axis of the cutterhead while rotating around their own axis. When the cutters rotate, they crush and break the rock wall, creating a series of grooves until the rock wall is broken and collapses. A TBM can advance tens of meters per day.

[0003] Like the teeth of a tunnel boring machine (TBM), the cutterhead wears at different rates depending on geological conditions, necessitating timely replacement after a certain period of use. Current technology requires stopping the TBM, having workers enter the man-cabin, approach the cutterhead, and then sealing the man-cabin and rear passage. Compressed gas is then injected around the tunnel face to increase the surrounding air pressure, which helps prevent face collapse. Because a complete cutterhead is quite heavy, each replacement requires hoisting equipment, resulting in high labor intensity. Furthermore, the excessively high air pressure exceeds workers' physical limits, making prolonged high-intensity work unsustainable and requiring rest shifts. To avoid decompression sickness from rapid decompression, several hours of decompression are required after each exit from the man-cabin, leading to low work efficiency.

[0004] A split-type hob with a detachable cutter ring and a disassembly / assembly device are proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a split-type hobbing cutter and its disassembly and assembly device.

[0006] The objective of this invention is achieved through the following technical solution: It includes a cutter ring, which is composed of several arc-shaped cutter segments. Each arc-shaped cutter segment has a wedge fixed to one end and a slanted groove opened at the other end. The wedges of two adjacent arc-shaped cutter segments are inserted into the slanted grooves. Both the wedges and the slanted grooves have through holes for screws to pass through, and the axis of the through holes is perpendicular to the axis of the cutter ring.

[0007] Preferably, it also includes a cutter shaft, on which a cutter sleeve is rotatably sleeved. The outer circumferential wall of the cutter sleeve is provided with an annular groove for installing the cutter ring. The annular groove is coaxial with the cutter shaft, and several positioning protrusions are uniformly fixed in the annular groove around the axis.

[0008] The inner side of the arc-shaped blade section is provided with a positioning groove corresponding to the positioning protrusion.

[0009] Preferably, the arc-shaped blade segment is four segments.

[0010] Preferably, the device includes an arc-shaped box, the arc-shaped box is coaxial with the blade ring, and a storage groove, a recycling groove and a number of gripping components are arranged sequentially on the top surface of the arc-shaped box in a direction away from the center. The gripping end of the gripping component points to the center of the arc-shaped box.

[0011] The storage tank is equipped with a lifting component for lifting and storing the arc-shaped blade segment. The lifting direction of the lifting component is perpendicular to the movement direction of the gripping component.

[0012] Preferably, the gripping component includes a first electric telescopic rod, which is installed on the top surface of the arc-shaped box. The telescopic end of the first electric telescopic rod points to the center of the arc-shaped box and is fixedly connected to a first box body. A lower clamping plate is fixedly connected to the bottom surface of the first box body, and an upper clamping plate is hinged to the top surface of the first box body. The other ends of the lower clamping plate and the upper clamping plate both point to the center of the arc-shaped box.

[0013] A rotating shaft is rotatably installed inside the first box. The axis of the rotating shaft is perpendicular to the bottom surface of the first box. Several levers are fixedly connected to the outer circumference of the rotating shaft around the axis. A through groove is also opened on the side of the first box facing the center of the arc-shaped box. The other end of the lever extends out of the first box through the through groove. A second motor is also installed inside the first box. The output shaft of the second motor is fixedly connected to the rotating shaft.

[0014] The gripping assembly also includes a second electric telescopic rod, which is installed above the first electric telescopic rod. The axis of the second electric telescopic rod is parallel to the first electric telescopic rod. The telescopic end of the second electric telescopic rod points to the center of the arc-shaped box and is hinged to a first hinge rod. The other end of the first hinge rod is hinged to the top surface of the upper clamping plate.

[0015] Preferably, the lifting assembly includes several third electric telescopic rods, which are installed inside the storage tank. The telescopic direction of the third electric telescopic rods is perpendicular to the bottom surface of the storage tank. The telescopic ends of the third electric telescopic rods point out of the storage tank and are fixed to a support plate. Several arc-shaped blade segments are stacked on the support plate.

[0016] Preferably, the top surface of the arc-shaped box is also equipped with two sets of screw removal components, which are located on both sides of the storage slot.

[0017] Each screw removal assembly includes a second housing, and a first cylinder is fixed to the side of the second housing facing the center of the arc-shaped box. The axis lines of the two first cylinders are perpendicular to each other and both point to the center of the arc-shaped box.

[0018] The second box contains a first slider, on which a first motor is mounted. A screwdriver is fixed to the output shaft of the first motor. The other end of the screwdriver extends from the first cylinder and is coaxial with the first cylinder. The second box also contains a fourth electric telescopic rod. The telescopic end of the fourth electric telescopic rod points to the center of the arc-shaped box and is fixed to the first slider.

[0019] Preferably, the device includes a base, an arc-shaped box placed on the base, and a fifth electric telescopic rod installed on the base. The telescopic end of the fifth electric telescopic rod is perpendicular to the base and fixedly connected to the bottom surface of the arc-shaped box.

[0020] Preferably, the tip of the screwdriver is made of a magnetic material.

[0021] Preferably, a camera is installed on the side of the arc-shaped box facing the center, and a remote control panel is installed on the other side of the arc-shaped box away from the center.

[0022] Because of the adoption of the above technical solution, the present invention has the following advantages:

[0023] 1. The split-type hob of the present invention is easy to fix, and the inclined block is easy to disassemble. Any worn arc-shaped cutter segment can be removed for replacement without removing the entire cutter ring. Other arc-shaped cutter segments can continue to be used, saving costs. The inclined block and the inclined groove cooperate to ensure a stable connection and are not easy to fall off during operation.

[0024] 2. If the hob is worn and needs to be replaced, only the worn arc-shaped cutter section can be removed, without removing the entire cutter shaft and cutter sleeve from the cutter head. This eliminates the need for hoisting equipment, reduces replacement steps, reduces labor intensity, and improves replacement efficiency.

[0025] 3. This invention enables remote control of the cutter replacement process, eliminating the need for workers to enter the pressurized chamber for cutter replacement, thus reducing potential safety hazards and ensuring worker safety. Furthermore, the machinery can operate for extended periods inside the chamber without the need for high air pressure, thereby improving efficiency.

[0026] 4. When the dial block of the present invention rotates, it can rotate the arc-shaped blade segment until the worn arc-shaped blade segment is rotated to the side where the arc-shaped box is located. When it rotates to the worn position, because there is a gap due to wear, the dial block can no longer maintain contact with the outer circumference of the arc-shaped blade segment, so it can no longer rotate the arc-shaped blade segment. The worn position can be determined by the dial block.

[0027] After determining the wear location, the first and second electric telescopic rods extend forward a distance again, so that the lever contacts the wear location again. The lever can continue to move the worn arc-shaped blade segment. At this time, the lever is used to fine-tune the arc-shaped blade segment so that the screw removal assembly is aligned with the arc-shaped blade segment.

[0028] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0029] The accompanying drawings of this invention are described below.

[0030] Figure 1 This is an exploded view of the split-type hobbing cutter of the present invention.

[0031] Figure 2 This is a schematic diagram of the split hobbing cutter of the present invention.

[0032] Figure 3 This is a schematic diagram of the disassembly and assembly device of the present invention.

[0033] Figure 4 This is a schematic diagram of the base of the present invention.

[0034] Figure 5 This is a schematic diagram of the lifting assembly of the present invention.

[0035] Figure 6 This is a schematic diagram of the grasping component of the present invention.

[0036] Figure 7 This is a cross-sectional view of the first box body of the present invention.

[0037] Figure 8 This is a schematic diagram of the second housing of the present invention.

[0038] In the diagram: 1. Arc-shaped blade segment; 2. Wedge block; 3. Wedge groove; 4. Screw; 5. Through hole; 6. Blade shaft; 7. Blade sleeve; 8. Annular groove; 9. Positioning protrusion; 10. Positioning groove; 11. Arc-shaped box; 12. Storage slot; 13. Recycling slot; 14. First electric telescopic rod; 15. First box body; 16. Lower clamping plate; 17. Upper clamping plate; 18. Rotating shaft; 19. Pulley block; 20. Through slot; 21. Second electric telescopic rod; 22. First hinge rod; 23. Third electric telescopic rod; 24. Support plate; 25. Second box body; 26. First cylinder; 27. First slider; 28. First motor; 29. ​​Screwdriver; 30. Fourth electric telescopic rod; 31. Base; 32. Fifth electric telescopic rod; 33. Second motor; 34. Camera; 35. Remote control panel. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0040] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the embodiments of the present invention, it should be noted that unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0041] like Figures 1 to 2 As shown, a split hob includes a cutter ring, which is composed of several arc-shaped cutter segments 1. One end of each arc-shaped cutter segment 1 is fixed with a wedge block 2, and the other end is provided with a wedge groove 3. The wedge blocks 2 of two adjacent arc-shaped cutter segments 1 are inserted into the wedge groove 3. Both the wedge block 2 and the wedge groove 3 are provided with through holes 5 for screws 4 to pass through. The axis of the through hole 5 is perpendicular to the axis of the cutter ring.

[0042] In this embodiment, the arc-shaped blade segments 1 can be assembled into a blade ring, and the inclined blocks 2 of two adjacent arc-shaped blade segments 1 are inserted into the inclined grooves 3. The screws 4 are inserted into the through holes 5 to fix the two adjacent arc-shaped blade segments 1 together.

[0043] The split-type hob of this invention is easy to fix, and the inclined block is easy to disassemble. Any worn arc-shaped cutter segment can be removed for replacement without removing the entire cutter ring. Other arc-shaped cutter segments can continue to be used, saving costs. The inclined block and the inclined groove cooperate to ensure a stable connection and prevent it from falling off during operation.

[0044] like Figures 1 to 2 As shown, it also includes a cutter shaft 6, on which a cutter sleeve 7 is rotatably sleeved. An annular groove 8 for installing a cutter ring is provided on the outer circumference of the cutter sleeve 7. The annular groove 8 is coaxial with the cutter shaft 6. Several positioning protrusions 9 are uniformly fixed in the annular groove 8 around the axis.

[0045] The inner side of the arc-shaped blade section 1 is provided with a positioning groove 10 corresponding to the positioning protrusion 9.

[0046] In this embodiment, the cutterhead of the tunnel boring machine has several slots. The cutter shaft 6 is installed in the slots of the tunnel boring machine. The cutter sleeve 7 is installed on the cutter shaft 6 through bearings. The arc-shaped cutter segment 1 is inserted into the annular groove 8 and then fixed in the annular groove 8 by screws 4. The positioning groove 10 engages with the positioning protrusion 9 to ensure that the arc-shaped cutter segment 1 will not shake in the annular groove 8. When the excavation work is carried out, the arc-shaped cutter segment 1 and the cutter sleeve 7 rotate together.

[0047] If the hob is worn and needs to be replaced, only the worn arc-shaped cutter section 1 can be removed without removing the cutter shaft from the cutter head, reducing labor intensity and improving replacement efficiency.

[0048] like Figure 1 As shown, the arc-shaped blade segment 1 is preferably four segments.

[0049] In this embodiment, the four arc-shaped blade segments 1 are the easiest to fix and disassemble with each other.

[0050] like Figures 3 to 5 As shown, the device includes an arc-shaped box 11, which is coaxial with the blade ring. On the top surface of the arc-shaped box 11, a storage groove 12, a recycling groove 13 and several gripping components are arranged in sequence along the direction away from the center. The gripping end of the gripping component points to the center of the arc-shaped box 11.

[0051] The storage tank 12 is equipped with a lifting component for the arc-shaped blade segment 1 that is lifted and stored. The lifting direction of the lifting component is perpendicular to the movement direction of the gripping component.

[0052] In this embodiment, the cutterhead of the tunnel boring machine has several slots. Split-type cutterheads are installed in the slots of the tunnel boring machine and rotate with the rotation of the cutterhead. When the cutterheads are worn out after long-term use and cannot continue to tunnel, the worn cutterheads need to be removed. The workers first put the arc-shaped box 11 into the manhole using hoisting equipment. The inside of the arc-shaped box 11 is aligned with the cutterhead of the tunnel boring machine. The workers close the manhole and inject compressed gas into the space at the cutterhead position to increase the air pressure. The air pressure is used to ensure that the tunnel face does not collapse.

[0053] The cutter head rotates, moving the cutter head that needs to be replaced to the personnel compartment. The arc-shaped box 11 can be raised or lowered. The operator adjusts the arc-shaped box 11 according to the actual height, aligns it with the split cutter head that needs to be replaced, and the gripping component extends and enters the mounting slot of the cutter head to grab and remove the worn arc-shaped cutter segment 1 without removing the entire cutter head. When the gripping component retracts to above the recovery slot 13, it opens, and the arc-shaped cutter segment 1 falls into the recovery slot 13. The lifting component lifts the new arc-shaped cutter segment 1, and the gripping component extends again to hold the new arc-shaped cutter segment 1 and insert it into the annular groove 8 to fix the new arc-shaped cutter segment 1. The replacement is then complete.

[0054] like Figures 6 to 7As shown, the gripping assembly includes a first electric telescopic rod 14, which is installed on the top surface of the arc-shaped box 11. The telescopic end of the first electric telescopic rod 14 points to the center of the arc-shaped box 11 and is fixedly connected to a first box body 15. A lower clamping plate 16 is fixedly connected to the bottom surface of the first box body 15, and an upper clamping plate 17 is hinged to the top surface of the first box body 15. The other ends of the lower clamping plate 16 and the upper clamping plate 17 both point to the center of the arc-shaped box 11.

[0055] A rotating shaft 18 is rotatably installed inside the first box 15. The axis of the rotating shaft 18 is perpendicular to the bottom surface of the first box 15. Several levers 19 are fixedly connected to the outer circumference of the rotating shaft 18 around the axis. A through groove 20 is also provided on the side of the first box 15 facing the center of the arc-shaped box 11. The other end of the lever 19 extends out of the first box 15 through the through groove 20. A second motor 33 is also installed inside the first box 15. The output shaft of the second motor is fixedly connected to the rotating shaft 18.

[0056] The gripping assembly also includes a second electric telescopic rod 21, which is installed above the first electric telescopic rod 14. The axis of the second electric telescopic rod 21 is parallel to the first electric telescopic rod 14. The telescopic end of the second electric telescopic rod 21 points to the center of the arc-shaped box 11 and is hinged to a first hinge rod 22. The other end of the first hinge rod 22 is hinged to the top surface of the upper clamping plate 17.

[0057] In this embodiment, the cutterhead of the tunnel boring machine has several slots. The split-type cutter head is installed on the cutterhead of the tunnel boring machine. When the split-type cutter head moves to the man cabin position, the axis of the split-type cutter head is perpendicular to the ground. The first electric telescopic rod 14 and the second electric telescopic rod 21 extend out, driving the first box 15 to extend into the installation slot. The lower clamping plate 16 extends to the lower side of the arc-shaped cutter section 1, and the upper clamping plate 17 extends to the upper side of the arc-shaped cutter section 1.

[0058] The second electric telescopic rod 21 extends and retracts, driving the first hinge rod 22. The first hinge rod 22 drives the upper clamping plate 17 to press down or lift up, thereby controlling whether the upper clamping plate 17 cooperates with the lower clamping plate 16 to clamp.

[0059] The first electric telescopic rod 14 and the second electric telescopic rod 21 extend out. After the lower clamping plate 16 and the upper clamping plate 17 approach the arc-shaped blade segment 1, they do not close and clamp it at first. At this time, the lever 19 extends out through the groove 20 and abuts against the intact outer circumference of the arc-shaped blade segment 1. The second motor 33 drives the rotating shaft 18 to rotate. The rotating shaft 18 drives the lever 19. When the lever 19 rotates, it can move the arc-shaped blade segment 1 to rotate. The arc-shaped blade segment 1 rotates until the worn arc-shaped blade segment 1 is rotated to the side where the arc-shaped box 11 is located. When it rotates to the worn position, because there is a gap due to wear, the lever 19 can no longer maintain contact with the outer circumference of the worn arc-shaped blade segment 1, and thus cannot continue to move the worn arc-shaped blade segment 1 to rotate.

[0060] After the wear position is determined by the lever 19, the first electric telescopic rod 14 and the second electric telescopic rod 21 extend forward again to make the lever 19 contact the wear position of the arc-shaped blade segment 1 again. The lever 19 can continue to move the worn arc-shaped blade segment 1. At this time, the movement is used to fine adjust the arc-shaped blade segment 1 so that the screw removal assembly is aligned with the arc-shaped blade segment 1, and then the disassembly begins.

[0061] like Figure 5 As shown, the lifting assembly includes several third electric telescopic rods 23, which are installed in the storage tank 12. The telescopic direction of the third electric telescopic rods 23 is perpendicular to the bottom surface of the storage tank 12. The telescopic end of the third electric telescopic rods 23 points out of the storage tank 12 and is fixedly connected to a support plate 24. Several arc-shaped blade segments 1 are stacked on the support plate 24.

[0062] In this embodiment, the third electric telescopic rod 23 extends, driving the support plate 24 to rise, and the support plate 24 lifts the arc-shaped blade segment 1 in sequence.

[0063] like Figure 3 , Figure 8 As shown, two sets of screw removal assemblies are also installed on the top surface of the arc-shaped box 11, and the two sets of screw removal assemblies are located on both sides of the storage slot 12 respectively.

[0064] Each screw removal assembly includes a second housing 25. A first cylinder 26 is also fixed to the side of the second housing 25 facing the center of the arc-shaped box 11. The axis lines of the two first cylinders 26 are perpendicular to each other and both point to the center of the arc-shaped box 11.

[0065] A first slider 27 is slidably installed inside the second box 25. A first motor 28 is installed on the first slider 27. A screwdriver 29 is fixedly connected to the output shaft of the first motor 28. The other end of the screwdriver 29 extends from the first cylinder 26 and is coaxial with the first cylinder 26. A fourth electric telescopic rod 30 is also installed inside the second box 25. The telescopic end of the fourth electric telescopic rod 30 points to the center of the arc-shaped box 11 and is fixedly connected to the first slider 27.

[0066] In this embodiment, four arc-shaped blade segments 1 are preferred. Therefore, the included angle between the through holes of the arc-shaped blade segments 1 is 90°, and the included angle between the two sets of screw removal components is also 90°. After the lever 19 finely adjusts the position of the arc-shaped blade segments 1, the first cylinder 26 is aligned with the through hole 5, and the first cylinder 26 is connected to the through hole 5.

[0067] The fourth electric telescopic rod 30 drives the first slider 27 to move forward, the first slider 27 drives the screwdriver 29 to move forward, the screwdriver 29 can be inserted into the through hole 5 of the arc-shaped blade section 1, the first motor 28 drives the screwdriver 29 to rotate, and can unscrew the screw 4, the fourth electric telescopic rod 30 drives the first slider 27 to move backward, and the screwdriver 29 pulls the screw 4 back into the first cylinder 26.

[0068] like Figure 4 As shown, the device includes a base 31, an arc-shaped box 11 placed on the base 31, and a fifth electric telescopic rod 32 installed on the base 31. The telescopic end of the fifth electric telescopic rod 32 is perpendicular to the base 31 and is fixedly connected to the bottom surface of the arc-shaped box 11.

[0069] In this embodiment, the cutterhead of the tunnel boring machine has several slots, and the split-type cutterhead is installed in the slots of the tunnel boring machine and rotates with the rotation of the cutterhead. The base 31 and the arc-shaped box 11 are placed in the manning cabin. The cutterhead drives the split-type cutterhead to move to the manning cabin. The fifth electric telescopic rod 32 drives the arc-shaped box 11 to rise and fall, and disassembles the split-type cutterheads at different heights.

[0070] like Figure 8 As shown, the front end of the screwdriver 29 is made of magnetic material.

[0071] In this embodiment, the front end of the screwdriver 29 is made of magnet, which can attract and hold the screw.

[0072] like Figures 2 to 3 As shown, a camera 34 is installed on the side of the arc-shaped box 11 facing the center, and a remote control panel 35 is installed on the other side of the arc-shaped box 11 away from the center.

[0073] In this embodiment, when changing the tool, the manhole needs to be closed and the operation inside the manhole needs to be pressurized. The air pressure ensures that the working face does not collapse. The staff can check the situation from the rear through the camera 34 and remotely control the operation of the invention, which is safer.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A disassembling device for split type milling cutter, the split type milling cutter comprising a cutter ring, the cutter ring being composed of a plurality of arc-shaped cutter segments, each of the arc-shaped cutter segments being fixed with an inclined block at one end and being provided with an inclined recess at the other end, the inclined blocks of two adjacent arc-shaped cutter segments being inserted into the inclined recesses, and each of the inclined blocks and the inclined recesses being provided with a through hole for a screw, the axis of the through hole being perpendicular to the axis of the cutter ring; characterized in that, The device comprises an arc-shaped box coaxial with the knife ring, a storage groove, a recovery groove and a plurality of grabbing assemblies are sequentially arranged on the top surface of the arc-shaped box in the direction away from the center of the circle, and the grabbing end of the grabbing assembly points to the center of the arc-shaped box; A jacking assembly for jacking the arc-shaped knife segment stored in the storage groove is arranged in the storage groove, and the jacking direction of the jacking assembly is perpendicular to the movement direction of the grabbing assembly; The grabbing assembly comprises a first electric telescopic rod, the first electric telescopic rod is installed on the top surface of the arc-shaped box, the telescopic end of the first electric telescopic rod points to the center of the arc-shaped box, and a first box body is fixedly connected to the telescopic end, a lower clamping plate is fixedly connected to the bottom surface of the first box body, an upper clamping plate is hingedly connected to the top surface of the first box body, and the other ends of the lower clamping plate and the upper clamping plate both point to the center of the arc-shaped box; A rotating shaft is rotatably installed in the first box body, the shaft center line of the rotating shaft is perpendicular to the bottom surface of the first box body, a plurality of push blocks are fixedly connected to the circumferential outer wall of the rotating shaft around the shaft center line, a through groove is formed in the side of the first box body facing the center of the arc-shaped box, the other ends of the push blocks extend out of the first box body through the through groove, a second motor is installed in the first box body, and the output shaft of the second motor is fixedly connected to the rotating shaft; The grabbing assembly further comprises a second electric telescopic rod, the second electric telescopic rod is installed above the first electric telescopic rod, the shaft center line of the second electric telescopic rod is parallel to the first electric telescopic rod, the telescopic end of the second electric telescopic rod points to the center of the arc-shaped box, and a first hinge rod is hingedly connected to the telescopic end, and the other end of the first hinge rod is hingedly connected to the top surface of the upper clamping plate.

2. A disassembling device of a split type milling cutter according to claim 1, wherein The jacking assembly comprises a plurality of third electric telescopic rods, the third electric telescopic rods are installed in the storage groove, the telescopic direction of the third electric telescopic rods is perpendicular to the bottom surface of the storage groove, the telescopic end of the third electric telescopic rods points to the outside of the storage groove, and a supporting plate is fixedly connected to the telescopic end, and a plurality of arc-shaped knife segments are stacked on the supporting plate.

3. The disassembling device of a split type milling cutter according to claim 1, wherein Two groups of screw dismounting assemblies are installed on the top surface of the arc-shaped box, and the two groups of screw dismounting assemblies are respectively located on the two sides of the storage groove; Each screw dismounting assembly comprises a second box body, a first cylinder is fixedly connected to the side of the second box body facing the center of the arc-shaped box, the shaft center lines of the two first cylinders are perpendicular to each other and both point to the center of the arc-shaped box; A first sliding block is slidably installed in the second box body, a first motor is installed on the first sliding block, a screwdriver is fixedly connected to the output shaft of the first motor, the other end of the screwdriver extends out of the first cylinder, the screwdriver is coaxial with the first cylinder, a fourth electric telescopic rod is installed in the second box body, the telescopic end of the fourth electric telescopic rod points to the center of the arc-shaped box, and the telescopic end is fixedly connected to the first sliding block.

4. The disassembling device of a split type milling cutter according to claim 1, wherein The device comprises a base, the arc-shaped box is placed on the base, a fifth electric telescopic rod is installed on the base, the telescopic end of the fifth electric telescopic rod is perpendicular to the base, and the bottom surface of the arc-shaped box is fixedly connected to the telescopic end.

5. The disassembling device of a split type milling cutter according to claim 3, wherein The front end of the screwdriver is made of magnetic material.

6. The disassembling device of segmented cutter according to claim 1, characterized in that, A camera is installed on the side of the arc-shaped box facing the center, and a remote control panel is installed on the other side of the arc-shaped box away from the center.

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