A device and method for cold repair of edge defects of conveyor belts

Abstract

This invention discloses a cold repair device and method for conveyor belt edge defects, relating to the field of conveyor belt repair technology. It includes a repair seat mounted on a repair frame, on which a reciprocating screw, a servo motor, and a rotating shaft are installed. The rotating shaft is equipped with two one-way bearings with opposite self-locking directions. The method further includes the following steps: S1: After the repair strip is placed, the overall placement angle of the device is adjusted so that the length direction of the reciprocating screw corresponds to the length direction of the repair strip. The advantages are: The repair strip is adhered using a repair component that can move laterally and longitudinally, and then rolled to remove air bubbles. With the use of a limiting slide, the repair component removes air bubbles only in one specific direction when the reciprocating screw is working. Simultaneously, when processing the sides of the repair strip, the repair component can be rapidly and effectively repaired by increasing the rotation speed through reciprocating hammering.

Description

Technical Field

[0001] This invention relates to the field of conveyor belt repair technology, and in particular to a cold repair device and method for conveyor belt edge defects. Background Technology

[0002] When damage occurs at the edge of a conveyor belt, it needs to be repaired to prevent further damage and extend its service life. Common repair methods include cold repair, which involves first grinding the damaged area with an angle grinder, then cleaning the ground area with a cleaning solution, and then repairing it with a repair strip and repair adhesive. The damaged area is first coated with adhesive twice, then the repair strip is coated with adhesive, and the two are then bonded together. Finally, a pressure roller and hammer are used to remove air bubbles. The pressure roller is used to operate on the parts outside the edges of the repair strip. During operation, a person holds the pressure roller and moves it back and forth in one direction, while the edges are tapped back and forth with a hammer at a certain angle. However, the above air bubble removal operations are all performed manually with different tools, and the pressure, tapping force, and tapping angle applied by the person are not constant and are greatly affected by human factors, thus reducing the effectiveness of air bubble removal and affecting the cold repair effect. Therefore, we propose a cold repair device for conveyor belt edge defects to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to solve the problems mentioned in the background art by providing a cold repair device and method for conveyor belt edge defects.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A cold repair device for edge defects of a conveyor belt includes a repair seat installed on a repair frame. The repair seat is equipped with a reciprocating screw, a servo motor, and a rotating shaft. The rotating shaft is equipped with two one-way bearings with opposite self-locking directions. A transmission structure is sleeved between the reciprocating screw and the corresponding one-way bearing. The reciprocating lead screw one is mounted on a mounting bracket via a ball nut, and the reciprocating lead screw two is rotatably mounted on the mounting bracket. A repair part is installed between the mounting bracket and the reciprocating lead screw two via a movable adjustment component. A reciprocating swing component is installed between the mounting frame and the movable adjustment component; A rotation control component is provided between the reciprocating lead screw and the rotating shaft, and a speed adjustment component is installed between the mounting frame, the reciprocating lead screw and the reciprocating swing component.

[0005] A method for cold repair of edge defects in a conveyor belt, using the aforementioned cold repair device, includes the following steps: S1: After the repair strip is placed, adjust the overall placement angle of the device so that the length direction of the reciprocating screw two corresponds to the length direction of the repair strip, and the repair part is pressed tightly on the repair strip; S2: Turn on the servo motor. The servo motor first drives the one-way bearing that is far away to rotate. At this time, the one-way bearing that is in contact with the reciprocating screw one does not rotate. At this time, the two helical gears drive the reciprocating screw two to rotate. At this time, the speed of the servo motor is low, and the elastic lever does not contact the ring gear. The rotation of the reciprocating screw two drives the repair part to move through the moving seat, the telescopic rod one, and the support frame one. Under the action of the limit slide, when the repair part moves to one end, it can automatically move up to another height. Thus, during the reset process, the repair part does not contact the repair strip. When it moves to the other end, it moves down to the initial position. S3: During operation, multiple pressure roller repairs can be performed on the repair part at one position. When it is necessary to adjust the position along the width of the repair strip, when the repair part is in the initial position, control the rotating shaft to rotate in the opposite direction. At this time, the second reciprocating screw does not rotate, while the first reciprocating screw rotates. The rotation of the first reciprocating screw drives the entire mounting frame to move, so that the distance of each movement does not exceed the thickness of the pressure roller. S4: When repairing the two sides of the repair strip, the rotation speed of the shaft is increased, which increases the rotation speed of the reciprocating screw, thereby increasing the centrifugal force on the elastic locking rod, causing it to engage in the slot, and driving the ring gear to rotate together. The rotation of the ring gear drives the gear to rotate through the transmission gear. S5: The rotation of the gear drives the reciprocating screw three to rotate through the telescopic rod two. The rotation of the reciprocating screw three drives the rack to move back and forth quickly through the ball nut, which in turn drives the oscillating gear to oscillate back and forth within a certain angle, hammering and striking the edge of the repair strip. During this process, the reciprocating screw two is in a rotating state, so that the repair part will still move along the length of the repair strip while oscillating back and forth.

[0006] Compared with existing technologies, the advantages of this invention are: 1: The repair strip is applied using a repair component that can move horizontally and vertically, and then rolled to remove air bubbles. With the use of a limiting slide, the repair component removes air bubbles only in one specific direction when the reciprocating screw is working. At the same time, when processing the two sides of the repair strip, the repair component can be quickly and effectively repaired by increasing the rotation speed and hammering it back and forth.

[0007] 2: The lateral and longitudinal movement of the repair part can be achieved simply by changing the rotation direction of the shaft. At the same time, by changing the rotation speed of the shaft, it is possible to control whether the reciprocating screw two drives the reciprocating screw three to rotate when it rotates, which facilitates the removal of air bubbles from the repair strip as needed. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of a cold repair device and method for conveyor belt edge defects proposed in this invention; Figure 2 for Figure 1 A schematic diagram of the repair frame after it has been rotated at a certain angle; Figure 3 for Figure 1 A schematic diagram of the repair seat after it has been rotated a certain angle; Figure 4 for Figure 1 A schematic diagram of the middle limit slide plate after it has been rotated to a certain angle; Figure 5 for Figure 5 A schematic diagram of a single limiting slide plate after it has rotated a certain angle; Figure 6 for Figure 4 A schematic diagram of the central rotating shaft after it has been rotated by a certain angle; Figure 7 for Figure 6 Enlarged structural diagram of section A; Figure 8 for Figure 4 A schematic diagram of the repaired part after it has been rotated at a certain angle; Figure 9 for Figure 6 A structural schematic diagram of a portion of a reciprocating lead screw; Figure 10 for Figure 9 Schematic diagram of the mounting bracket; Figure 11 for Figure 9 A schematic diagram of the structure after removing the limiting slide plate on one side; Figure 12 for Figure 11 Enlarged structural diagram of section B; Figure 13 for Figure 11 Schematic diagram of the structure of the middle support frame; Figure 14 for Figure 6 A schematic diagram of the two parts of the reciprocating lead screw; Figure 15 for Figure 14 A schematic diagram showing the repaired part rotated at a certain angle. Figure 16 for Figure 1 A schematic diagram showing the servo motor section after it has rotated a certain angle. Figure 17 for Figure 16 A schematic diagram of the structure of the moving base section; Figure 18 for Figure 1 A schematic diagram of the repair seat after it has been rotated at a certain angle; Figure 19 for Figure 17 A schematic diagram showing the two parts of the telescopic rod after being rotated at a certain angle; Figure 20 for Figure 19 A schematic diagram of the central transmission gear section after it has been rotated by a certain angle; Figure 21 for Figure 20 A schematic diagram of the structure of the second support frame.

[0009] In the diagram: 1. Repair frame; 2. Repair seat; 3. Reciprocating screw one; 4. Servo motor; 5. Rotating shaft; 6. One-way bearing; 7. Transmission structure; 8. Mounting frame; 9. Reciprocating screw two; 10. Limiting slide plate; 11. Round shaft; 12. Moving seat; 13. Telescopic rod one; 14. Support frame one; 15. Repair part; 16. Reciprocating screw three; 17. Rack; 18. Swing gear; 19. Telescopic rod two; 20. Strip groove; 21. Card seat; 22. Helical gear; 23. Support frame two; 24. Ring gear; 25. Card slot; 26. Elastic locking rod; 27. Transmission gear; 28. Gear. Detailed Implementation

[0010] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0011] Reference Figures 1-21 A cold repair device for conveyor belt edge defects includes a repair frame 1, the repair frame 1 being shaped as follows: Figure 2 As shown, a horizontal plate is integrally formed on the top. During the modification process, the area to be repaired on the conveyor belt can be brought into contact with the horizontal plate, which provides support for the repair area. A repair seat 2 is installed on the repair frame 1. The upper end of the repair frame 1 is circular and has a threaded hole. The repair seat 2 is threaded onto the upper part of the repair frame 1. The purpose of the thread is to facilitate the adjustment of the angle of the repair seat 2 according to the specific position of the repair strip, making it easier to use. Furthermore, the overall height of the repair frame 1 is adjustable. For example, the bottom of the repair frame can be set as two plates, with a cylinder and a telescopic rod between the two plates. The operation of the cylinder drives the telescopic rod to extend, thereby adjusting the height. Figure 2As can be seen, the upper and lower parts of the repair frame 1 are connected by a rod. Furthermore, the rod can be rotated and set at the lower part during use, but a locking function must be provided to keep it in a fixed state before and after rotation. The locking function is existing technology, such as fixing a disc on the rod and threading a locking rod on the disc. When it is necessary to fix it, tighten the locking rod to tighten and lock its lower end to the lower end of the repair frame 1.

[0012] Reference Figures 1-21 The repair base 2 is rotatably mounted with a reciprocating lead screw 3 and a rotating shaft 5. Four support blocks are fixedly mounted on the lower surface of the repair base 2. The support blocks are arranged in pairs, and the shapes of the support blocks in different groups are different. The reciprocating lead screw 3 is rotatably mounted on one group of support blocks, and the rotating shaft 5 is rotatably mounted on the other group of support blocks. A servo motor 4 is fixedly mounted on the repair base 2, and one end of the rotating shaft 5 is fixedly mounted on the drive end of the servo motor 4. Two one-way bearings 6 are mounted on the rotating shaft 5, and the two one-way bearings 6 have opposite self-locking directions. A transmission structure 7 is sleeved between the reciprocating lead screw 3 and the corresponding one-way bearing 6. The transmission structure 7 can be an existing chain drive or belt drive. A cover can also be provided to isolate and protect the transmission structure 7.

[0013] The reciprocating screw 3 is mounted with a mounting bracket 8 via a ball nut, and the mounting bracket 8 is slidably connected to the repair seat 2. The mounting bracket 8 includes an annular seat, an L-shaped rod bracket, a large disc, and a small disc. The annular seat is mounted on the reciprocating screw 3 via a ball nut, and four L-shaped rod brackets are fixedly mounted on the annular seat. The lower ends of two L-shaped rod brackets are fixedly mounted on a large disc, and a stepped slide rod is fixedly mounted on each of the two L-shaped rod brackets. Two stepped strip grooves are symmetrically opened on the lower surface of the repair seat 2, and the stepped slide rods cooperate with the corresponding stepped strip grooves. The lower ends of the other two L-shaped rod brackets are fixedly set with corresponding limiting slide plates 10. Two small discs are fixedly set on the large disc near the telescopic rod 19, and the transmission gears 27 and 28 are respectively rotatably set on the corresponding small discs.

[0014] Reference Figures 1-21A reciprocating screw 2 9 is rotatably mounted on the mounting frame 8. A repair component 15 is mounted between the mounting frame 8 and the reciprocating screw 2 9 via a movable adjustment component. The repair component 15 includes vertical plates, a shaft, and a pressure roller. Two vertical plates are fixedly sleeved on the round shaft 11, and a pressure roller is rotatably mounted between the two vertical plates via the shaft. The movable adjustment component is used to control the repair component 15 to apply pressure to the repair area only in one direction. The movable adjustment component includes a sliding adjustment assembly, a round shaft 11, a moving seat 12, and a telescopic assembly. The moving seat 12 is mounted on the reciprocating screw 2 9 via a ball nut. The lower end of the moving seat 12 is mounted on the round shaft 11 via the telescopic assembly. The repair component 15 is fixedly sleeved on the round shaft 11. The telescopic assembly includes a telescopic rod 13 and a support frame 14. The telescopic rod 13 is fixedly mounted on the lower surface of the moving seat 12, and the lower end of the telescopic rod 13 is fixedly mounted on the support frame 14. The support frame 14 is equipped with a rotating shaft 11. The support frame 14 includes a connecting rod, a circular block 1, a diagonal rod, and a circular block 2. The lower end of the telescopic rod 13 is fixedly mounted with a connecting rod, and the end face of the connecting rod is an inverted U-shape. Two circular blocks 1 are fixedly mounted on the lower end of the connecting rod. Each of the two circular blocks 1 is fixedly mounted with a circular block 2 through a diagonal rod. The reciprocating screw 3 16 is rotatably mounted on the two circular blocks 2. The circular blocks 1 are rotatably mounted with the rotating shaft 11. The two circular blocks 1 are located on both sides of the rack 17. A sliding adjustment assembly is installed between the rotating shaft 11 and the mounting frame 8. The sliding adjustment assembly includes a limiting slide plate 10. Two limiting slide plates 10 are symmetrically fixedly mounted on the mounting frame 8. A sliding groove is opened on the side of the two limiting slide plates 10 that are close to each other, and the two ends of the rotating shaft 11 slide on the corresponding sliding grooves.

[0015] Reference Figures 1-21 A reciprocating swing component is installed between the mounting frame 8 and the movable adjustment component. This reciprocating swing component controls the repair piece 15 to reciprocate within a certain angle when repairing the edge, hammering the repair area. During the hammering process, the repair piece 15 continues to move in a specific direction. The reciprocating swing component includes a reciprocating screw 16, a swing assembly, and a telescopic rod 19. The lower end of the support frame 14 is rotatably mounted with the reciprocating screw 16. A swing assembly is installed between the reciprocating screw 16 and the round shaft 11. The swing assembly includes a rack 17 and swing teeth. The wheel 18 and the middle part of the reciprocating screw 16 are provided with reciprocating threads. A rack 17 is installed on the reciprocating screw 16 through a ball nut. A swing gear 18 that meshes with the rack 17 is fixedly installed on the round shaft 11. One end of the reciprocating screw 16 passes through the support frame 14 and is fixedly installed with a telescopic rod 19. One end of the telescopic rod 19 is fixedly set to the mounting frame 8. The telescopic rod 19 is multi-sectioned, which allows the support frame 14 to move in the length direction of the reciprocating screw 19. Other structures with the same function can also be used to replace it. The end of the reciprocating lead screw 9 closest to the servo motor 4 is smooth, and a rotation control component is provided between this part and the rotating shaft 5. The rotation control component includes a sliding rotation assembly, a transmission assembly, and a support assembly. The sliding rotation assembly is mounted on the rotating shaft 5, and a one-way bearing 6 away from the transmission structure 7 is sleeved on the sliding rotation assembly. The sliding rotation assembly includes a strip groove 20 and a retainer 21. Multiple strip grooves 20 are provided on the rotating shaft 5, and the retainer 21 is slidably sleeved on the multiple strip grooves 20. The one-way bearing 6 is sleeved on the outside of the retainer 21. The retainer 21 is hollow with both ends connected. Multiple strip slide rods are integrally formed inside, and the strip slide rods slide on the corresponding strip grooves 20. A transmission assembly is installed between the one-way bearing 6 and the reciprocating lead screw 9. The transmission assembly includes a helical gear 22. A helical gear 22 is fixedly installed on both the one-way bearing 6 and the reciprocating lead screw 9, and the two helical gears 22 mesh with each other. A support assembly is installed between the mounting frame 8 and the helical gear 22 on the rotating shaft 5. A support assembly is installed between the transmission assembly and the mounting frame 8. The support assembly includes a support frame 23 and an annular support groove. The support frame 23 is fixedly installed on the mounting frame 8. The support frame 23 is composed of a U-shaped rod and an annular rod body. One end of the U-shaped rod is fixed to the annular rod body, and the other end is fixed to the mounting frame 8. The annular rod body is located in the annular support groove. An annular support groove is opened on the helical gear 22 located on the rotating shaft 5. The end face of the annular support groove is stepped, and one end of the support frame 23 is located in the annular support groove.

[0016] Reference Figures 1-21 A speed-regulating component is installed between the mounting bracket 8, the reciprocating lead screw 9, and the reciprocating oscillating component. This component controls the operation of the reciprocating oscillating component based on the rotational speed of the reciprocating lead screw 9. The speed-regulating component includes a ring gear 24, a speed-changing engagement assembly, a transmission gear 27, and a gear 28. The ring gear 24, transmission gear 27, and gear 28 are rotatably mounted on the mounting bracket 8, and the transmission gear 27 meshes simultaneously with the ring gear 24 and gear 28. The ring gear 24 is hollow and connected at both ends, and the smooth portion of the reciprocating lead screw 9 engages with the ring gear 24. A speed-changing engagement assembly is provided between 4. The speed-changing engagement assembly includes a slot 25 and an elastic lever 26. Multiple slots 25 are equally spaced on the inner wall of the ring gear 24. Multiple elastic levers 26 are fixedly installed on the reciprocating screw 9, and one end of the elastic lever 26 cooperates with the corresponding slot 25. The gear 28 is fixedly set with the telescopic rod 19. The elastic lever 26 is an elastic and telescopic rod that rotates with the rotation of the reciprocating screw 9. When the centrifugal force increases, one end of it will be locked into the slot 25, thereby driving the ring gear 24 to rotate.

[0017] Reference Figures 1-21A method for cold repair of edge defects in a conveyor belt, using the aforementioned cold repair device, includes the following steps: S1: After the repair strip is placed, adjust the overall placement angle of the device so that the length direction of the reciprocating screw 9 corresponds to the length direction of the repair strip, and the repair part 15 is pressed on the repair strip; S2: Start the servo motor 4. The servo motor 4 first drives the one-way bearing 6, which is far away, to rotate. At this time, the one-way bearing 6, which is in cooperation with the reciprocating screw 3, does not rotate. At this time, the two helical gears 22 drive the reciprocating screw 9 to rotate. At this time, the speed of the servo motor 4 is low. The elastic lever 26 does not contact the ring gear 24. The rotation of the reciprocating screw 9 drives the repair part 15 to move through the moving seat 12, the telescopic rod 13, and the support frame 14. Under the action of the limiting slide plate 10, the repair part 15 can automatically move up to another height when it moves to one end. Then, during the reset process, the repair part 15 does not contact the repair strip. When it moves to the other end, it moves down to the initial position. S3: During operation, the repair part 15 can be selected to perform multiple pressure roller repairs at one position. When it is necessary to adjust the position along the width direction of the repair strip, when the repair part 15 is in the initial position, control the rotating shaft 5 to rotate in the opposite direction. At this time, the reciprocating screw 2 9 does not rotate, and the reciprocating screw 1 3 rotates. The rotation of the reciprocating screw 1 3 drives the mounting frame 8 to move as a whole, so that the distance of each movement does not exceed the thickness of the pressure roller. S4: When repairing the two sides of the repair strip, the rotation speed of the rotating shaft 5 is increased, which increases the rotation speed of the reciprocating screw 9, thereby increasing the centrifugal force on the elastic locking rod 26, which engages in the locking groove 25, and drives the ring gear 24 to rotate together. The rotation of the ring gear 24 drives the gear 28 to rotate through the transmission gear 27. S5: The rotation of gear 28 drives the reciprocating screw 3 16 to rotate through the telescopic rod 2 19. The rotation of the reciprocating screw 3 16 drives the rack 17 to move back and forth quickly through the ball nut, which in turn drives the oscillating gear 18 to oscillate back and forth quickly within a certain angle, hammering the edge of the repair strip. During this process, the reciprocating screw 2 9 is in a rotating state, so that the repair part 15 will still move along the length of the repair strip while oscillating back and forth.

[0018] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cold repair device for conveyor belt edge defects, comprising a repair seat (2) mounted on a repair frame (1), characterized in that, The repair seat (2) is equipped with a matching reciprocating screw (3), servo motor (4), and rotating shaft (5), and two one-way bearings (6) with opposite self-locking directions are installed on the rotating shaft (5), and a transmission structure (7) is sleeved between the reciprocating screw (3) and the corresponding one-way bearing (6). The reciprocating screw 1 (3) is mounted with a mounting bracket (8) via a ball nut. The reciprocating screw 2 (9) is rotatably mounted on the mounting bracket (8). A repair part (15) is installed between the mounting bracket (8) and the reciprocating screw 2 (9) via a movable adjustment component. A reciprocating swing component is installed between the mounting bracket (8) and the movable adjustment component; A rotation control component is provided between the reciprocating lead screw (9) and the rotating shaft (5), and a speed adjustment component is installed between the mounting frame (8), the reciprocating lead screw (9), and the reciprocating swing component.

2. The cold repair device for conveyor belt edge defects according to claim 1, characterized in that, The upper part of the repair frame (1) is circular and has a threaded hole, and the repair seat (2) is threadedly installed on the upper part of the repair frame (1).

3. The cold repair device for conveyor belt edge defects according to claim 2, characterized in that, The movable adjustment component includes a sliding adjustment component, a round shaft (11), a movable seat (12), and a telescopic component. The movable seat (12) is installed on the reciprocating screw (9) via a ball nut. The lower end of the movable seat (12) is installed on the round shaft (11) via the telescopic component. The repair part (15) is fixedly sleeved on the round shaft (11). A sliding adjustment component is installed between the round shaft (11) and the mounting bracket (8). The sliding adjustment assembly includes a limiting slide plate (10). Two limiting slide plates (10) are symmetrically fixed on the mounting frame (8). Sliding grooves are opened on the side of the two limiting slide plates (10) that are close to each other, and the two ends of the round shaft (11) slide on the corresponding sliding grooves respectively. The telescopic assembly includes a telescopic rod (13) and a support frame (14). The telescopic rod (13) is fixedly installed on the lower surface of the movable seat (12), and the support frame (14) is fixedly installed at the lower end of the telescopic rod (13). The round shaft (11) and the support frame (14) are rotatably connected.

4. The cold repair device for conveyor belt edge defects according to claim 3, characterized in that, The reciprocating swing component includes a reciprocating screw three (16), a swing assembly, and a telescopic rod two (19). The lower part of the support frame one (14) is rotatably mounted with the reciprocating screw three (16). The swing assembly is installed between the reciprocating screw three (16) and the round shaft (11). One end of the reciprocating screw three (16) passes through the support frame one (14) and is fixedly mounted with the telescopic rod two (19). One end of the telescopic rod two (19) is fixedly set with the mounting frame (8). The swing assembly includes a rack (17) and a swing gear (18). The middle part of the reciprocating screw three (16) is provided with a reciprocating thread. The rack (17) is installed on the reciprocating screw three (16) by a ball nut. The swing gear (18) that meshes with the rack (17) is fixedly installed on the round shaft (11).

5. A cold repair device for conveyor belt edge defects according to claim 4, characterized in that, The rotation control component includes a sliding rotation component, a transmission component, and a support component. The sliding rotation component is installed on the rotating shaft (5), and a one-way bearing (6) away from the transmission structure (7) is sleeved on the sliding rotation component. A transmission component is installed between the one-way bearing (6) and the reciprocating screw (9), and a support component is installed between the transmission component and the mounting frame (8). The sliding rotation assembly includes a strip groove (20) and a retainer (21). The rotating shaft (5) has multiple strip grooves (20), and the multiple strip grooves (20) are slidably fitted onto the retainer (21). A one-way bearing (6) is fitted onto the outside of the retainer (21). The card holder (21) is a hollow structure with both ends connected. Multiple strip-shaped slide rods are integrally formed inside, and the strip-shaped slide rods slide on the corresponding strip-shaped slide grooves (20). The transmission assembly includes a helical gear (22), and a helical gear (22) is fixedly installed on both the one-way bearing (6) and the reciprocating screw (9), and the two helical gears (22) mesh with each other. The support assembly is installed between the helical gear (22) on the mounting bracket (8) and the rotating shaft (5).

6. A cold repair device for conveyor belt edge defects according to claim 5, characterized in that, The support assembly includes a second support frame (23) and an annular support groove. The second support frame (23) is fixedly installed on the mounting frame (8). An annular support groove is provided on the helical gear (22) located on the rotating shaft (5). The end face of the annular support groove is stepped, and one end of the second support frame (23) is located in the annular support groove. The second support frame (23) is composed of a U-shaped rod and a ring rod. One end of the U-shaped rod is fixed to the ring rod, and the other end is fixed to the mounting frame (8). The ring rod is located in the ring support groove.

7. A cold repair device for conveyor belt edge defects according to claim 6, characterized in that, The speed adjustment component includes a ring gear (24), a speed engagement assembly, a transmission gear (27), and a gear (28). The ring gear (24), the transmission gear (27), and the gear (28) are rotatably mounted on the mounting bracket (8). The transmission gear (27) meshes with the ring gear (24) and the gear (28) simultaneously. The ring gear (24) is hollow with both ends connected. A speed engagement assembly is provided between the smooth part of the reciprocating screw two (9) and the ring gear (24). The gear (28) is fixedly set with the telescopic rod two (19). The speed-changing engagement assembly includes a slot (25) and an elastic lever (26). Multiple slots (25) are equally spaced on the inner wall of the ring gear (24). Multiple elastic levers (26) are fixedly installed on the reciprocating screw (9), and one end of the elastic lever (26) is engaged with the corresponding slot (25).

8. A cold repair device for conveyor belt edge defects according to claim 7, characterized in that, The lower surface of the repair seat (2) is fixedly equipped with four support blocks, which are in pairs and have different shapes. The reciprocating screw (3) is rotatably mounted on one set of support blocks, and the rotating shaft (5) is rotatably mounted on another set of support blocks. The lower surface of the repair seat (2) is symmetrically provided with two stepped strip grooves. The mounting frame (8) includes an annular seat, an L-shaped rod frame, a large disc, and a small disc. The reciprocating screw (3) is mounted with an annular seat via a ball nut. Four L-shaped rod frames are fixedly mounted on the annular seat. The lower ends of two L-shaped rod frames are fixedly mounted on a large disc, and a stepped slide bar is fixedly mounted on each of the two L-shaped rod frames. The stepped slide bar is matched with the corresponding stepped strip groove. The lower ends of the other two L-shaped rod frames are fixedly set with the corresponding limiting slide plate (10). Two small discs are fixedly set on the large disc near the telescopic rod (19), and the transmission gear (27) and gear (28) are respectively rotated on the corresponding small discs.

9. A cold repair device for conveyor belt edge defects according to claim 8, characterized in that, The repair component (15) includes a vertical plate, a shaft, and a pressure roller. Two vertical plates are fixedly sleeved on the round shaft (11), and a pressure roller is rotatably installed between the two vertical plates through the shaft. The support frame 1 (14) includes a connecting rod, a circular block 1, an inclined rod, and a circular block 2. The lower end of the telescopic rod 1 (13) is fixedly installed with a connecting rod, and the end face of the connecting rod is an inverted U-shape. The lower end of the connecting rod is fixedly installed with two circular blocks 1. Each of the two circular blocks 1 is fixedly installed with a circular block 2 through an inclined rod. The reciprocating screw 3 (16) is rotatably installed on the two circular blocks 2. The circular blocks 1 and the circular shaft (11) are rotatably connected. The two circular blocks 1 are located on both sides of the rack (17).

10. A method for cold repair of edge defects of a conveyor belt, using the cold repair device according to claim 9, characterized in that, Includes the following steps: S1: After the repair strip is placed, adjust the overall placement angle of the device so that the length direction of the reciprocating screw 2 (9) corresponds to the length direction of the repair strip, and the repair part (15) is pressed on the repair strip; S2: Start the servo motor (4). The servo motor (4) first drives the one-way bearing (6) that is far away to rotate. At this time, the one-way bearing (6) that is in cooperation with the reciprocating screw (3) does not rotate. At this time, the reciprocating screw (9) is driven to rotate through the cooperation of the two helical gears (22). At this time, the speed of the servo motor (4) is low. The elastic lever (26) does not contact the ring gear (24). The reciprocating screw (9) rotates and drives the repair part (15) to move through the moving seat (12), the telescopic rod (13), and the support frame (14). Under the action of the limiting slide plate (10), the repair part (15) can automatically move up to another height when it moves to one end. In the reset process, the repair part (15) does not contact the repair strip. When it moves to the other end, it moves down to the initial position. S3: During operation, the repair part (15) can be selected to perform multiple pressure roller repairs at one position. When it is necessary to adjust the position along the width direction of the repair strip, when the repair part (15) is in the initial position, control the rotating shaft (5) to rotate in the opposite direction. At this time, the reciprocating screw two (9) does not rotate, and the reciprocating screw one (3) rotates. The rotation of the reciprocating screw one (3) drives the mounting frame (8) to move as a whole, so that the distance of each movement does not exceed the thickness of the pressure roller. S4: When repairing the two sides of the repair strip, the rotation speed of the rotating shaft (5) is increased, which increases the rotation speed of the reciprocating screw (9), thereby increasing the centrifugal force on the elastic locking rod (26), which engages in the locking groove (25), and drives the ring gear (24) to rotate together. The rotation of the ring gear (24) drives the gear (28) to rotate through the transmission gear (27); S5: The gear (28) rotates and drives the reciprocating screw (16) to rotate through the telescopic rod (19). The reciprocating screw (16) rotates and drives the rack (17) to move back and forth quickly through the ball nut, which in turn drives the swing gear (18) to swing back and forth quickly within a certain angle, and hammers the edge of the repair strip. During this process, the reciprocating screw (9) is in a rotating state, so that the repair part (15) will still move along the length direction of the repair strip while swinging back and forth.

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