Splitting type cutter and filling device thereof

Abstract

The utility model provides a split type hob and its filling device convenient for monitoring abrasion belong to the field of shield machine, and it is used for solving the problem of hob abrasion identification and inconvenient replacement in prior art, including the cutter shaft, the circumferential outer wall of cutter shaft is rotatably installed with the cutter sleeve, the circumferential outer wall of cutter sleeve is installed with the cutter ring, the cutter ring is composed of a plurality of cutter segments, the storage cavity for storing the marker is formed in the cutter segment, and the liquid injection port assembly for opening and closing the storage cavity is arranged on the one side of the splicing surface of cutter segment, the cutter segment of any abrasion can be replaced separately, and the whole does not need to be disassembled, is convenient to replace, saves the cost, replaces through the mechanical structure auxiliary, reduces the labor intensity of worker under the high pressure environment, improves the work efficiency, and the marker is injected only when replacing the cutter segment, the color of marker can be adjusted at any time according to the field situation, forms different color combinations, and is convenient for identification.

Description

Technical Field

[0001] The invention relates to the field of shield machines, in particular to a split-type roller cutter and a filling device thereof which are convenient for monitoring wear. Background Art

[0002] The roller cutter is a key component of the shield machine's cutting disc, mounted on the front end of the machine. Like the teeth of the shield machine, the roller cutter consists primarily of a cutter ring, cutter body (sleeve), cutter shaft, bearing, and end caps. As the cutter disk rotates, it drives the roller cutter to crush the rock wall, creating grooves until it collapses and collapses. Consequently, the roller cutter ring itself wears rapidly, with wear and chipping being the most common causes of damage.

[0003] In the existing technology, the wear monitoring of the roller cutter is completed through electrical conduction, hydraulic reduction, etc., which requires connecting cables or pipes to the rear with precise sensors. This is easily restricted by the narrow installation space in the shield machine and is not suitable for some small shield machines. The electronic sensors also have a certain risk of false alarms. Before replacing the roller cutter, in order to prevent the excavated face from collapsing, compressed gas needs to be injected around the face to increase the surrounding air pressure. The staff needs to work under high pressure, and the entire roller cutter is extremely heavy and difficult to carry. The disassembly steps of the roller cutter are cumbersome. If they stay in a high-pressure environment for a long time, it will put a great strain on the body of the staff.

[0004] A split hob and a filling device thereof are proposed, which can identify wear and tear and assist workers in completing replacement. Summary of the Invention

[0005] The object of the present invention is to provide a split hob and a filling device thereof which are convenient for monitoring wear.

[0006] The object of the present invention is achieved through such a technical solution, which includes a knife shaft, a knife sleeve is rotatably mounted on the circumferential outer wall of the knife shaft, and a knife ring is mounted on the circumferential outer wall of the knife sleeve;

[0007] The knife ring is composed of a plurality of knife segments, each of which is provided with a storage cavity for storing identifiers, and a liquid injection port assembly for opening and closing the storage cavity is provided on a spliced ​​surface on one side of the knife segment.

[0008] Preferably, the liquid injection port assembly includes a first through hole, the first through hole is provided on a joint surface on one side of the blade segment, the other end of the first through hole is connected to the storage cavity, a first cylinder is slidably located in the first through hole, the first cylinder and the first through hole are coaxial, one end of the first cylinder away from the storage cavity is open, a first cylinder is fixedly connected to the side of the first cylinder facing the storage cavity, and a plurality of liquid holes are provided on the circumferential outer wall of the first cylinder;

[0009] A mounting seat is fixed in the storage cavity, the first cylinder is slidably located on the mounting seat, one end of the first cylinder passes through the mounting seat and is fixed to a limit block, a spring is sleeved on the first cylinder, one end of the spring contacts the mounting seat, and the other end contacts the first cylinder.

[0010] Preferably, a protrusion is fixed on the joint surface on one side of the blade segment, and a groove is provided on the joint surface on the other side of the blade segment. The protrusions of two adjacent blade segments are inserted into the groove. A first screw hole is provided on the protrusion, and a second screw hole matching the first screw hole is provided in the groove. The first screw hole and the second screw hole are coaxial and both point to the center of the blade ring.

[0011] Preferably, the device includes a storage unit for storing the blade segments, disassembly units for disassembly screws are installed on both sides of the storage unit, and an injection unit for injecting the marker into the storage cavity is also provided on one side of the storage unit.

[0012] Preferably, the storage unit includes a storage cylinder, the axis of the storage cylinder is parallel to the ground, a first outlet is formed on the circumferential outer wall of the storage cylinder, a central axis column is fixedly connected to the storage cylinder, a mounting groove is formed on the circumferential side wall of the central axis column, the opening side of the mounting groove faces the first opening, a first telescopic rod is installed in the mounting groove, the telescopic end of the first telescopic rod points to the first outlet, and a gripper is fixedly connected to the first telescopic rod;

[0013] A main ring is rotatably mounted on the central axis column. The main ring and the central axis column are coaxial with the storage tube. The circumferential outer wall of the main ring fits with the circumferential inner wall of the storage tube. A plurality of placement grooves for the clamping knife segments are provided on the circumferential outer wall of the main ring around the axis. An avoidance opening for the clamping hand to pass through is provided at the bottom of the placement groove, and the avoidance opening is connected to the installation groove.

[0014] Preferably, a gear ring is fixed on the inner circumferential wall of the main ring, a first rotating power source is installed on the end face of the central shaft column, the axis of the first rotating power source is parallel to the axis of the central shaft column, a first gear is fixed on the output shaft of the first rotating power source, and the first gear is engaged with the gear ring.

[0015] Preferably, the injection unit includes a liquid storage cylinder, which is fixedly connected to the storage cylinder, and the liquid storage cylinder and the storage cylinder are coaxial, and the storage cylinder and the placement slot are open on the side facing the liquid storage cylinder, and a plurality of liquid storage chambers are opened around the axis in the liquid storage cylinder, and a second telescopic rod is installed on the end face of the liquid storage chamber facing the placement slot, and the telescopic direction of the second telescopic rod points to the placement slot, and an electric-controlled nozzle is installed on the telescopic end of the second telescopic rod, and the electric-controlled nozzle is located on the rotation track of the placement slot and can be extended into the first through hole, and the other end of the electric-controlled nozzle is connected to the liquid storage chamber through a flexible pipe.

[0016] Preferably, the disassembly unit includes two sets of disassembly components symmetrically arranged on both sides of the first outlet;

[0017] The disassembly components each include a first box body, two first box bodies are respectively fixed to the end surfaces of both sides of the storage cylinder, the length direction of the first box body is directed toward the center of the knife segment, and the two first box bodies are further fixed to the side facing the center of the knife segment to which the second cylinder is attached, the axis lines of the two second cylinders are respectively directed toward the two ends of the knife segment and are coaxial with the first screw hole and the second screw hole respectively;

[0018] A third telescopic rod is installed in each of the first box bodies, the axis of the third telescopic rod is coaxial with the second cylinder, the telescopic end of the third telescopic end is installed with a second rotational power source, a screwdriver is fixedly connected to the output shaft of the second rotational power source, and the other end of the screwdriver extends from the second cylinder and points to the first screw hole or the second screw hole.

[0019] Preferably, the front end of the screwdriver is made of magnetic material.

[0020] Due to the adoption of the above technical solution, the present invention has the following advantages:

[0021] 1. The present invention can replace any worn blade segments individually without disassembling the entire blade, which is convenient for replacement and saves costs. The mechanical structure assists replacement, reduces the labor intensity of workers in high-pressure environments, and improves work efficiency. The marker is injected only when the blade segment is replaced, and the color of the marker can be adjusted at any time according to the on-site situation to form different color combinations for easy identification.

[0022] 2. The present invention can determine whether the roller is worn by the color of the slag, and can also determine the specific worn roller according to the color of the dye. It is easy to use, the results are intuitive, and it is not easy to have false alarms; the dye is directly stored inside the cutter segment, without the need for complex cable pipes and sensors to be connected to the rear console, and is not easily restricted by the size of the installation space on the front side of the shield machine, and is very suitable for small-diameter shield machines.

[0023] Other advantages, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings of the present invention are described below.

[0025] Figure 1 It is a working schematic diagram of the present invention.

[0026] Figure 2 It is an exploded view of the hob of the present invention.

[0027] Figure 3 It is a schematic diagram of the blade segment of the present invention.

[0028] Figure 4 for Figure 3 Enlarged view of point A.

[0029] Figure 5 Schematic diagram of the filling device of the present invention.

[0030] Figure 6 Schematic diagram of the storage unit of the present invention.

[0031] Figure 7 Schematic diagram of the storage cartridge of the present invention.

[0032] Figure 8 It is a schematic diagram of the central axis column of the present invention.

[0033] Figure 9 Schematic diagram of the main ring of the present invention.

[0034] Figure 10 Schematic diagram of the liquid injection unit of the present invention.

[0035] Figure 11 Schematic diagram of the liquid storage chamber of the present invention.

[0036] Figure 12 It is a schematic diagram of the disassembly unit of the present invention.

[0037] In the figure: 1. Blade shaft; 2. Blade sleeve; 3. Blade segment; 4. Storage chamber; 5. First through hole; 6. First cylinder; 7. First cylinder; 8. Liquid hole; 9. Mounting seat; 10. Limit block; 11. Spring; 12. Bump; 13. Groove; 14. First screw hole; 15. Second screw hole; 16. Storage cylinder; 17. First outlet; 18. Central axis column; 19. Mounting slot; 20. First telescopic rod; 21. Clamp; 22. Main ring; 23. Placement slot; 24. Avoidance; 25. Ring gear; 26. First rotational power source; 27. First gear; 28. Liquid storage cylinder; 29. ​​Liquid storage chamber; 30. Second telescopic rod; 31. Electric control nozzle; 32. First box body; 33. Second cylinder; 34. Third telescopic rod; 35. Second rotational power source; 36. Screwdriver. DETAILED DESCRIPTION

[0038] The present invention will be further described below with reference to the accompanying drawings and examples.

[0039] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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 devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0040] like Figures 1 to 3 As shown, a split hob that is convenient for monitoring wear includes a cutter shaft 1, a cutter sleeve 2 is rotatably mounted on the circumferential outer wall of the cutter shaft 1, and a cutter ring is mounted on the circumferential outer wall of the cutter sleeve 2;

[0041] The knife ring is composed of a plurality of knife segments 3, each of which is provided with a storage cavity 4 for storing markers, and a liquid injection port assembly for opening and closing the storage cavity 4 is provided on the joint surface of one side of the knife segment 3.

[0042] In this embodiment, the cutter housing 2 of the present invention is rotatably mounted on the circumferential outer wall of the cutter shaft 1 via a bearing. The cutter housing 2 is provided with a mounting ring groove for mounting a cutter ring, which is fixed to the cutter housing 2 via a plurality of screws. When the shield machine is excavating, the cutterhead at the front end of the shield machine rotates. The cutterhead is equipped with a plurality of rollers. The cutter rings of the rollers directly contact the rock wall of the tunnel face. The cutter rings break the rock wall by rolling, and the cutter rings are very susceptible to wear.

[0043] When wear cracks appear on the cutter segment 3, the storage cavity 4 will rupture, and the marker in the storage cavity 4 will flow out and fall into the debris that has fallen from the broken rock wall of the tunnel face. The debris is then transported to the rear side through the conveyor belt under the shield machine. The staff can determine whether the roller cutter is worn by observing the color of the debris. It is easy to use, the results are intuitive, and false alarms are not likely to occur. When the cutter segment 3 needs to be replaced after being worn, first take out a new cutter segment 3, open the liquid injection port assembly, and inject dye or other colored liquid markers into the storage cavity 4, and then replace the worn old cutter segment 3. The storage cavity 4 can store dye or other colored liquid markers, and different colored dyes are selected for different cutter segments 3.

[0044] The present invention can replace any worn blade segment 3 individually without disassembling the entire blade, which facilitates replacement, saves costs and improves efficiency. In addition, the dye is directly stored inside the blade segment 3 without the need for complex cable pipes and sensors to be connected to the rear console. It is not easily restricted by the size of the installation space on the front side of the shield machine and is very suitable for small-diameter shield machines.

[0045] like Figures 3 and 4 As shown, the liquid injection port assembly includes a first through hole 5, which is provided on a joint surface of one side of the blade segment 3. The other end of the first through hole 5 is connected to the storage cavity 4. A first cylinder 6 is slidably located in the first through hole 5. The first cylinder 6 is coaxial with the first through hole 5. The end of the first cylinder 6 away from the storage cavity 4 is open. A first cylinder 7 is fixedly connected to the side of the first cylinder 6 facing the storage cavity 4. A plurality of liquid holes 8 are provided on the circumferential outer wall of the first cylinder 6.

[0046] A mounting seat 9 is fixedly connected to the storage cavity 4, and the first cylinder 7 is slidably located on the mounting seat 9. One end of the first cylinder 7 passes through the mounting seat 9 and is fixedly connected to a limit block 10. A spring 11 is sleeved on the first cylinder 7. One end of the spring 11 is in contact with the mounting seat 9, and the other end is in contact with the first cylinder 6.

[0047] In this embodiment, in the initial state, the first cylinder 6 is located in the first through hole 5, and the liquid hole 8 is blocked by the side wall of the first through hole 5. When dye needs to be added, the electronically controlled nozzle 31 is inserted into the first through hole 5, pushing the first cylinder 6 back. The spring 11 is compressed, and the liquid hole 8 retreats into the storage chamber 4. After the electronically controlled nozzle 31 is aligned with the open side of the first cylinder 6, the electronically controlled nozzle 31 sprays the dye, and the dye flows through the first cylinder 6 and the liquid hole 8 into the storage chamber 4.

[0048] When the filling is completed, the electronically controlled nozzle 31 withdraws from the first through hole 5, the spring 11 is released, pushing the first cylinder 6 to slide, and the liquid hole 8 is blocked by the side wall of the first through hole 5 again, completing the sealing of the storage chamber 4.

[0049] like Figures 2 to 3 As shown, a protrusion 12 is fixed to the splicing surface on one side of the blade segment 3, and a groove 13 is provided on the splicing surface on the other side of the blade segment 3. The protrusions 12 of the two adjacent blade segments 3 are inserted into the groove 13. A first screw hole 14 is provided on the protrusion 12, and a second screw hole 15 that cooperates with the first screw hole 14 is provided in the groove 13. The first screw hole 14 and the second screw hole 15 are coaxial and both point to the center of the knife ring.

[0050] In this embodiment, the blade segments 3 are positioned relative to each other by means of the protrusions 12 and the grooves 13. The protrusions 12 and the grooves 13 are all beveled. After unscrewing the screws at both ends, the blade segments 3 can be directly slid out.

[0051] like Figure 5 As shown, a filling device for a split hob includes a storage unit for storing the cutter segments 3, a disassembly unit with disassembly screws installed on both sides of the storage unit, and an injection unit for injecting a marker into the storage cavity 4 is also provided on one side of the storage unit.

[0052] In this embodiment, when the blade segment 3 needs to be replaced, the worker carries the device into the man cabin and places the device on the hob to be disassembled. After the disassembly unit removes the screws, the storage unit removes the old blade segment 3 and places it into the storage unit. Then, the injection unit adds dye to any new blade segment 3, and then pushes out the new blade segment 3 and installs it on the hob.

[0053] like Figures 6 to 9 As shown, the storage unit includes a storage cylinder 16, the axis of which is parallel to the ground. A first outlet 17 is formed on the outer circumferential wall of the storage cylinder 16. A central column 18 is fixedly connected to the storage cylinder 17. A mounting groove 19 is formed on the circumferential side wall of the central column 18. The opening side of the mounting groove 19 faces the first opening 17. A first telescopic rod 20 is mounted in the mounting groove 19. The telescopic end of the first telescopic rod 20 points to the first outlet 17 and is fixedly connected to a gripper 21.

[0054] A main ring 22 is rotatably mounted on the central axis column 18. The main ring 22 and the central axis column 18 are coaxial with the storage tube 16. The outer circumferential wall of the main ring 22 fits in with the inner circumferential wall of the storage tube 16. A plurality of placement grooves 23 for holding the knife segments 3 are opened on the outer circumferential wall of the main ring 22 around the axis. An avoidance opening 24 for the clamping hand 21 to pass through is opened at the bottom of the placement groove 23, and the avoidance opening 24 is connected to the installation groove 19.

[0055] In this embodiment, the main ring 22 is driven to rotate. After any empty placement slot 23 moves to the first opening 17, the main ring 22 stops rotating, and the first telescopic rod 20 extends, sequentially passing through the avoidance opening 24 and the first outlet 17 to the outside of the storage tube 16. The disassembly unit removes the screws of the blade segment 3, and the clamping hand 21 clamps the old blade segment 3. The first telescopic rod 20 retracts, pulling the blade segment 3 back into the placement slot 23 and locking it. Finally, the first telescopic rod 20 retracts into the installation slot 19, and the main ring 22 can continue to rotate.

[0056] The main ring 22 rotates, and the placement groove with the new blade segment 3 moves to the first opening 17. The first telescopic rod 20 extends, and the clamping hand 21 clamps the new blade segment 3, pushes it out of the placement groove, and places it on the hob cutter ring. The disassembly unit screws on the original screws.

[0057] like Figures 6 to 9As shown, a gear ring 25 is fixedly connected to the inner circumferential wall of the main ring 22, and a first rotary power source 26 is installed on the end face of the central shaft column 18. The axis of the first rotary power source 26 is parallel to the axis of the central shaft column 18, and a first gear 27 is fixedly connected to the output shaft of the first rotary power source 26, and the first gear 27 is engaged with the gear ring 25.

[0058] In this embodiment, the first rotational power source 26 is generally a servo motor. The first rotational power source 26 drives the first gear 27 , the first gear 27 drives the ring gear 25 , and the ring gear 25 drives the main ring 22 to rotate.

[0059] like Figures 10 and 11 As shown, the injection unit includes a liquid storage cylinder 28, the liquid storage cylinder 28 is fixedly connected to the storage cylinder 16, the liquid storage cylinder 28 and the storage cylinder 16 are coaxial, the storage cylinder 16 and the placement groove 23 are open on the side facing the liquid storage cylinder 28, and a plurality of liquid storage chambers 29 are opened around the axis in the liquid storage cylinder 28, and a second telescopic rod 30 is installed on the end face of the liquid storage chamber 29 facing the placement groove 23, and the telescopic direction of the second telescopic rod 30 points to the placement groove 23, and an electric-controlled nozzle 31 is installed on the telescopic end of the second telescopic rod 30, and the electric-controlled nozzle 31 is located on the rotation trajectory of the placement groove 23 and can be extended into the first through hole 5, and the other end of the electric-controlled nozzle 31 is connected to the liquid storage chamber 29 through a flexible pipe.

[0060] In this embodiment, the liquid storage cylinder 28 is fixed, the main ring 22 rotates, and several new blade segments 3 are clamped in the placement groove 23. When the main ring 22 rotates, it drives the blade segment 3 to move, and the liquid injection port components of the blade segment 3 are all aligned with the direction of the liquid storage chamber 29. Different liquid storage chambers 29 store dyes of different colors. When the blade segment 3 needs to be replaced, select a blade segment 3 and move it to the liquid storage chamber 29. The second telescopic rod 30 drives the electric control nozzle 31 to extend, and the electric control nozzle 31 is inserted into the first through hole 5. The liquid injection port component is opened to inject liquid, and then the blade segment 3 is released for installation.

[0061] like Figure 5 、 Figure 12 As shown, the disassembly unit includes two sets of disassembly components symmetrically arranged on both sides of the first outlet 17;

[0062] Each of the disassembly assemblies includes a first box body 32, and two first box bodies 32 are respectively fixed to the end faces of the storage cylinder 16 on both sides. The length direction of each of the first box bodies 32 points to the center of the blade segment 3. The two first box bodies 32 are also fixed to the side facing the center of the blade segment 3. The axis lines of the two second cylinders 33 point to the two ends of the blade segment 3 and are coaxial with the first screw hole 14 and the second screw hole 15 respectively.

[0063] A third telescopic rod 34 is installed in the first box body 32. The axis of the third telescopic rod 34 is coaxial with the second cylinder 33. The telescopic end of the third telescopic end 34 is installed with a second rotational power source 35. A screwdriver 36 is fixed to the output shaft of the second rotational power source 35. The other end of the screwdriver 36 extends from the second cylinder 33 and points to the first screw hole 14 or the second screw hole 15.

[0064] In this embodiment, the two ends of the blade segment 3 are fixed to the blade sleeve 2 by two screws respectively. The staff places the storage cylinder 16 on the hob to be replaced. The staff rotates the hob so that the first screw hole 14 and the second screw hole 15 of the blade segment 3 are aligned with the two sets of disassembly components.

[0065] The third telescopic rod 34 extends, driving the second rotational power source 35 to move. The second rotational power source 35 is usually a servo motor. The second rotational power source 35 drives the screwdriver 36 to rotate. The screwdriver 36 extends from the second cylinder 33 and extends into the first screw hole 14 or the second screw hole 15 to unscrew the screw. The third telescopic rod 34 retracts, and the screwdriver 36 pulls out the screw and temporarily places it in the second cylinder 33. After waiting for the blade segment 3 to be replaced, the third telescopic rod 34 extends again, and the screwdriver 36 pushes the screw out of the second cylinder 33 and pushes it back into the first screw hole 14 or the second screw hole 15. The second rotational power source 35 rotates, and the screwdriver 36 tightens the screw again.

[0066] like Figure 12 As shown, the front end of the screwdriver 36 is made of magnetic material.

[0067] In this embodiment, the magnetic material ensures that the screwdriver 36 can pull the screw to move.

[0068] 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, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A split hob that is easy to monitor wear, characterized in that: It comprises a knife shaft, a knife sleeve is rotatably mounted on the outer circumference wall of the knife shaft, and a knife ring is mounted on the outer circumference wall of the knife sleeve; The knife ring is composed of a plurality of knife segments, each of which is provided with a storage cavity for storing markers, and a liquid injection port assembly for opening and closing the storage cavity is provided on the joint surface of one side of the knife segment; The liquid injection port assembly includes a first through hole, the first through hole is opened on the joint surface of one side of the blade segment, the other end of the first through hole is connected to the storage cavity, a first cylinder is slidably located in the first through hole, the first cylinder and the first through hole are coaxial, the first cylinder is open at one end away from the storage cavity, a first cylinder is fixedly connected to the side of the first cylinder facing the storage cavity, and a plurality of liquid holes are opened on the circumferential outer wall of the first cylinder; A mounting seat is fixed in the storage cavity, the first cylinder is slidably located on the mounting seat, one end of the first cylinder passes through the mounting seat and is fixed to a limit block, a spring is sleeved on the first cylinder, one end of the spring contacts the mounting seat, and the other end contacts the first cylinder.

2. A split hob that is easy to monitor wear as claimed in claim 1, characterized in that: A protrusion is fixed on the splicing surface on one side of the blade segment, and a groove is provided on the splicing surface on the other side of the blade segment. The protrusions of two adjacent blade segments are inserted into the groove. A first screw hole is provided on the protrusion, and a second screw hole matching the first screw hole is provided in the groove. The first screw hole and the second screw hole are coaxial and both point to the center of the knife ring.

3. A filling device for filling the split hob cutter for easy wear monitoring according to claim 2, characterized in that: The utility model comprises a storage unit for storing the knife segments, a disassembly unit for disassembly screws being installed on both sides of the storage unit, and a liquid injection unit for injecting a marker into the storage cavity being also arranged on one side of the storage unit.

4. A filling device according to claim 3, characterized in that: The storage unit includes a storage cylinder, the axis of the storage cylinder is parallel to the ground, a first outlet is formed on the circumferential outer wall of the storage cylinder, a central axis column is fixedly connected to the storage cylinder, a mounting groove is formed on the circumferential side wall of the central axis column, the opening side of the mounting groove faces the first opening, a first telescopic rod is installed in the mounting groove, the telescopic end of the first telescopic rod points to the first outlet, and a gripper is fixedly connected to the first telescopic rod; A main ring is rotatably mounted on the central axis column. The main ring and the central axis column are coaxial with the storage tube. The circumferential outer wall of the main ring fits with the circumferential inner wall of the storage tube. A plurality of placement grooves for the clamping knife segments are provided on the circumferential outer wall of the main ring around the axis. An avoidance opening for the clamping hand to pass through is provided at the bottom of the placement groove, and the avoidance opening is connected to the installation groove.

5. A filling device according to claim 4, characterized in that: A gear ring is fixedly connected to the inner circumferential wall of the main ring, a first rotating power source is installed on the end face of the central shaft column, the axis of the first rotating power source is parallel to the axis of the central shaft column, a first gear is fixedly connected to the output shaft of the first rotating power source, and the first gear is meshed with the gear ring.

6. A filling device according to claim 5, characterized in that: The injection unit includes a liquid storage cylinder, which is fixedly connected to the storage cylinder, and the liquid storage cylinder and the storage cylinder are coaxial, and the storage cylinder and the placement groove are open on the side facing the liquid storage cylinder, and a plurality of liquid storage chambers are opened around the axis in the liquid storage cylinder, and a second telescopic rod is installed on the end face of the liquid storage chamber facing the placement groove, and the telescopic direction of the second telescopic rod points to the placement groove, and an electric-controlled nozzle is installed on the telescopic end of the second telescopic rod, and the electric-controlled nozzle is located on the rotation track of the placement groove and can be extended into the first through hole, and the other end of the electric-controlled nozzle is connected to the liquid storage chamber through a flexible pipe.

7. A filling device according to claim 6, characterized in that: The disassembly unit includes two sets of disassembly components symmetrically arranged on both sides of the first outlet; The disassembly components each include a first box body, two first box bodies are respectively fixed to the end surfaces of both sides of the storage cylinder, the length direction of the first box body is directed toward the center of the knife segment, and the two first box bodies are further fixed to the side facing the center of the knife segment to which the second cylinder is attached, the axis lines of the two second cylinders are respectively directed toward the two ends of the knife segment and are coaxial with the first screw hole and the second screw hole respectively; A third telescopic rod is installed in each of the first box bodies, the axis of the third telescopic rod is coaxial with the second cylinder, the telescopic end of the third telescopic end is installed with a second rotational power source, a screwdriver is fixedly connected to the output shaft of the second rotational power source, and the other end of the screwdriver extends from the second cylinder and points to the first screw hole or the second screw hole.

8. A filling device according to claim 7, characterized in that: The front end of the screwdriver is made of magnetic material.

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