Anti-interference cable sheath stripping device
By designing a cable sheath stripping device that includes a worktable, feeding rollers, drive components, rotating rings, cutting blades, adjustment components, and sheathing components, mechanized stripping of cable sheaths has been achieved, solving the safety hazards in existing technologies and reducing the risk of cuts to workers.
Patent Information
- Application Number
- CN202423048507.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-11
AI Technical Summary
There are safety hazards in the current technology for stripping cable sheaths, as workers are easily cut by sharp knives.
Design an anti-interference cable sheath stripping device, including a worktable, feeding roller, drive assembly, rotating ring, cutting blade, adjustment assembly, sheath breaking assembly and sheath rolling assembly, to remove cable sheaths mechanically and avoid manual operation.
It effectively prevents cuts caused by sharp blades during operation, reduces work risks, and improves operational safety.
Smart Images
Figure CN223540146U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable technology, and in particular to an anti-interference cable sheath stripping device. Background Technology
[0002] A cable is a device used to transmit electrical energy or signals, typically consisting of multiple conductors or bundles. During electrical testing or installation, the outer insulation shield must be stripped to allow the cable cores to be distributed and connected.
[0003] Currently, the common method for stripping cable sheaths is by hand using knives. While this method is simple and direct, it poses certain safety hazards. Workers are prone to cuts from the sharpness of the knives, increasing the risk of injury. Utility Model Content
[0004] To solve the above problems, this utility model provides an anti-interference cable sheath stripping device.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an anti-interference cable sheath stripping device, comprising a frame, a workbench at the top of the frame, a mounting frame on one side of the top surface of the workbench, two horizontally spaced feeding rollers vertically rotatably mounted on the mounting frame, a driving assembly for driving the two feeding rollers to rotate synchronously in opposite directions on the workbench, two vertical plates spaced apart in the middle of the workbench, a mounting plate shared by the two vertical plates near the mounting frame, an opening horizontally opened on the mounting plate, a rotating ring horizontally rotatably mounted in the opening, a rotating assembly for driving the rotating ring to rotate on the mounting plate, a cutting blade slidably mounted on the rotating ring away from the mounting frame, an adjusting assembly for adjusting the sliding position of the cutting blade on the rotating ring, a sheath-breaking assembly between the two vertical plates, and a sheath-rolling assembly on the workbench away from the mounting frame.
[0006] By adopting the above technical solution, a workbench, feeding rollers, drive assembly, rotating ring, rotating assembly, cutting blade, adjusting assembly, sheath-splitting assembly, and sheath-winding assembly are set up. One end of the cable is placed between two feeding rollers, and then the drive assembly drives the cable backward through the rotating ring to the sheath-splitting assembly. The sheath-splitting assembly cuts open the cable sheath, and the sheath-winding assembly strips and winds it away. When the predetermined stripping length is reached, the operator adjusts the position of the cutting blade using the adjusting assembly, so that the cutting blade pierces the cable sheath. Then, the rotating assembly drives the rotating ring to rotate, which in turn drives the cutting blade to rotate, circumferentially cutting the cable sheath. This effectively prevents cuts to operators due to the sharpness of the blades during operation, thereby reducing work risks.
[0007] Furthermore, the rotating ring is provided with a mounting block, the mounting block has a square hole, a square block is slidably disposed in the square hole, and the cutting blade is connected to the square block.
[0008] By adopting the above technical solution, a mounting block and a square hole are set up. The square block slides within the square hole, ensuring the stability of the cutting blade's sliding motion.
[0009] Furthermore, the mounting block has a strip-shaped hole that communicates with a square hole. The adjustment component includes a connecting block that is slidably disposed in the strip-shaped hole and connected to the square block. Fixed blocks are disposed on both sides of the strip-shaped hole on the mounting block. A first threaded rod is rotatably disposed between the two fixed blocks. The connecting block is helically connected to the first threaded rod through a threaded hole. The end of the first threaded rod away from the cutting blade passes through the fixed block and is provided with a rotating handle.
[0010] By adopting the above technical solution, a strip hole, a connecting block, a fixing block, and a rotating handle are set. Rotating the rotating handle drives the first threaded rod to rotate. Since the connecting block is spirally connected to the first threaded rod through the threaded hole, the connecting block slides and drives the square block and the cutting blade to slide.
[0011] Furthermore, the mounting frame includes vertical plates spaced apart on the worktable, two horizontal plates spaced vertically between the two vertical plates, and two horizontally spaced rotating shafts arranged vertically between the two horizontal plates, with the feeding rollers respectively fixedly sleeved on the corresponding rotating shafts.
[0012] By adopting the above technical solution, vertical plates, horizontal plates, and rotating shafts are set up to ensure the stability of the feed roller rotation.
[0013] Furthermore, the lower end of the rotating shaft passes through the lower horizontal plate, the drive assembly includes a gear disposed at the lower end of the rotating shaft, the two gears mesh, a drive motor is vertically disposed on the worktable, the output axis of the drive motor is upward and connected to one of the rotating shafts.
[0014] By adopting the above technical solution, gears and a drive motor are set up. The drive motor drives one of the rotating shafts to rotate, which in turn drives the gears and feeding rollers on it to rotate. Since the two gears mesh, they drive the other rotating shaft and feeding roller to rotate synchronously, and the direction of rotation is opposite to the direction of rotation of the rotating shaft directly driven by the drive motor.
[0015] Furthermore, the skin-breaking assembly includes a rotating shaft horizontally rotatably disposed between two upright plates, a support roller fixedly sleeved on the rotating shaft, a top plate commonly disposed on the top of the two upright plates, two sliding rods vertically slidably disposed on the top plate, the lower ends of the two sliding rods being located below the top plate and commonly disposed on a lifting plate, a skin-breaking knife disposed at the bottom of the lifting plate directly above the support roller, a second threaded rod vertically rotatably disposed on the lifting plate, the top plate being helically connected to the second threaded rod through a threaded hole, the top of the second threaded rod being higher than the top of the sliding rod and disposed on a rotating handle.
[0016] By adopting the above technical solution, a rotating shaft, support roller, lifting plate, second threaded rod, and rotating handle are set up. After the cable passes through the rotating ring, the lower part of the cable contacts the top of the support roller, which supports the cable. Rotating the rotating handle drives the second threaded rod to rotate. Since the top plate is spirally connected to the second threaded rod, the second threaded rod descends, causing the lifting plate and the sheath-breaking knife to descend, so that the sheath-breaking knife pierces into the cable sheath. The feeding roller continues to push the cable. Under the support and compression of the support roller, the cable cooperates with the sheath-breaking knife to cut open the cable sheath.
[0017] Furthermore, the rolling assembly includes a winding roller that is horizontally rotatably mounted on the frame, with baffles at both ends of the winding roller, and a rolling motor that is horizontally mounted at the bottom of the worktable, with the output shaft of the rolling motor connected to the winding roller.
[0018] By adopting the above technical solution, a winding roller, a baffle, and a winding motor are set up. After the cable passes through the support roller and the sheath-breaking knife, a slit is cut in the cable sheath. The workers then peel off the end of the cable sheath and connect it to the winding roller. Subsequently, the winding motor is started, so that the subsequently cut cable sheath is wound around the winding roller.
[0019] Furthermore, the feeding roller is provided with an annular groove, and several rubber strips are arranged at intervals in the annular groove.
[0020] By adopting the above technical solution, an annular groove and rubber strip are set to increase the friction between the feeding roller and the cable, thus ensuring the stability of cable conveying.
[0021] Furthermore, the rotating assembly includes a rotating motor horizontally mounted on the mounting plate, a drive wheel is mounted on the output shaft of the rotating motor, and a toothed ring is fixedly sleeved on the outside of the rotating ring, the toothed ring meshing with the drive wheel.
[0022] By adopting the above technical solution, a rotating motor, a drive wheel, and a gear ring are set up. The rotating motor drives the drive wheel to rotate. Since the drive wheel meshes with the gear ring, the rotation of the gear ring causes the rotating ring to rotate.
[0023] In summary, this utility model has the following beneficial effects:
[0024] 1. In this application, a workbench, feeding rollers, drive assembly, rotating ring, rotating assembly, cutting blade, adjusting assembly, sheathing assembly, and coiling assembly are provided. One end of the cable is placed between two feeding rollers, and then the drive assembly drives the cable backward through the rotating ring to the sheathing assembly. The sheathing assembly cuts open the cable sheath, and the coiling assembly strips and coils the cable sheath. When the predetermined stripping length is reached, the operator adjusts the position of the cutting blade through the adjusting assembly so that the cutting blade penetrates the cable sheath. Then, the rotating assembly drives the rotating ring to rotate, which in turn drives the cutting blade to rotate, thus circumferentially cutting the cable sheath.
[0025] 2. In this application, gears and a drive motor are provided. The drive motor drives one of the rotating shafts to rotate, which in turn drives the gears and feeding rollers on it to rotate. Since the two gears mesh, they drive the other rotating shaft and feeding roller to rotate synchronously, and the direction of rotation is opposite to the direction of rotation of the rotating shaft directly driven by the drive motor.
[0026] 3. In this application, a rotating shaft, a support roller, a lifting plate, a second threaded rod, and a rotating handle are provided. After the cable passes through the rotating ring, the lower part of the cable contacts the top of the support roller, which supports the cable. Rotating the rotating handle drives the second threaded rod to rotate. Since the top plate is spirally connected to the second threaded rod, the second threaded rod descends, causing the lifting plate and the sheath-breaking knife to descend, so that the sheath-breaking knife pierces into the cable sheath. The feeding roller continues to push the cable, and the cable, supported and squeezed by the support roller, cooperates with the sheath-breaking knife to cut open the cable sheath. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0028] Figure 2 This is a schematic diagram of the mounting frame and feeding roller of this utility model embodiment;
[0029] Figure 3 This is a schematic diagram of the structure of the rotating ring and rotating assembly according to an embodiment of the present invention;
[0030] Figure 4 This is a schematic diagram of the structure of the skin-breaking component and the rotating ring in an embodiment of this utility model;
[0031] Figure 5 yes Figure 4 Enlarged view of part A.
[0032] In the diagram: 10. Frame; 11. Workbench; 20. Mounting frame; 21. Vertical plate; 22. Horizontal plate; 23. Rotating shaft; 30. Feeding roller; 31. Annular groove; 32. Rubber strip; 40. Drive assembly; 41. Gear; 42. Drive motor; 50. Vertical plate; 51. Mounting plate; 52. Rotating ring; 53. Cutting blade; 54. Mounting block; 55. Square block; 56. Strip hole; 60. Rotating assembly; 61. Rotating motor 62. Drive wheel; 63. Gear ring; 70. Adjustment assembly; 71. Connecting block; 72. Fixing block; 73. First threaded rod; 74. Rotating handle; 80. Skin-breaking assembly; 81. Rotating shaft; 82. Support roller; 83. Top plate; 84. Slide rod; 85. Lifting plate; 86. Skin-breaking knife; 87. Second threaded rod; 88. Rotating handle; 90. Skin-rolling assembly; 91. Winding roller; 92. Baffle; 93. Skin-rolling motor. Detailed Implementation
[0033] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0034] like Figure 1-5As shown in the figure, this application discloses an anti-interference cable sheath stripping device, including a frame 10, a workbench 11, a drive assembly 40, a rotating ring 52, a rotating assembly 60, an adjusting assembly 70, a sheath-breaking assembly 80, and a sheath-rolling assembly 90. The workbench 11 is located on top of the frame 10. A mounting frame 20 is provided on one side of the top surface of the workbench 11. Two horizontally spaced feeding rollers 30 are vertically rotatably mounted on the mounting frame 20. The drive assembly 40 is located on the workbench 11 and is used to drive the two feeding rollers 30 to rotate synchronously in opposite directions. One end of the cable is placed between the two feeding rollers 30, and then the cable is driven backward by the drive assembly 40. Two vertical plates 50 are spaced apart in the middle of the workbench 11. The sheath-breaking assembly 80 is located between the two vertical plates 50, and the sheath-rolling assembly 90 is located on the side of the workbench 11 away from the mounting frame 20. The sheath-breaking assembly 80 cuts open the cable sheath, and the sheath is stripped and rolled up by the sheath-rolling assembly 90. Two upright plates 50 are connected to a mounting plate 51 on the side adjacent to the mounting frame 20. The mounting plate 51 has a horizontal opening, within which a rotating ring 52 is horizontally rotatable. A rotating assembly 60 is mounted on the mounting plate 51 to drive the rotating ring 52 to rotate. A cutting blade 53 is slidably mounted on the side of the rotating ring 52 away from the mounting frame 20. An adjusting assembly 70 is mounted on the rotating ring 52 to adjust the sliding position of the cutting blade 53. The cable passes through the rotating ring 52. When the predetermined stripping length is reached, the operator adjusts the position of the cutting blade 53 using the adjusting assembly 70, causing the cutting blade 53 to pierce the cable sheath. Then, the rotating assembly 60 drives the rotating ring 52 to rotate, causing the cutting blade 53 to rotate and circumferentially cut the cable sheath, facilitating its removal. This effectively prevents cuts to workers due to the sharpness of the blade during operation, thus reducing work risks.
[0035] Specifically, the mounting frame 20 horizontally includes vertical plates 21 spaced apart on the worktable 11. Two horizontal plates 22 are vertically spaced between the two vertical plates 21. Two horizontally spaced rotating shafts 23 are vertically rotatable between the two horizontal plates 22. Feed rollers 30 are fixedly sleeved on their respective rotating shafts 23 to ensure the stability of the feed rollers 30's rotation. An annular groove 31 is formed on the feed roller 30, which engages with the cable to prevent cable deviation. Several rubber strips 32 are spaced apart within the annular groove 31 to increase the friction between the feed roller 30 and the cable, ensuring stable cable transport. The lower end of the rotating shaft 23 passes through the lower horizontal plate 22. The drive assembly 40 includes a gear 41 disposed at the lower end of the rotating shaft 23. The two gears 41 mesh. A drive motor 42 is vertically disposed on the worktable 11. The output shaft of the drive motor 42 is upward and connected to one of the rotating shafts 23. The drive motor 42 drives one of the rotating shafts 23 to rotate, thereby driving the gear 41 and the feeding roller 30 on it to rotate. Since the two gears 41 mesh, the other rotating shaft 23 and the feeding roller 30 are driven to rotate synchronously, and the rotation direction is opposite to the rotation direction of the rotating shaft 23 directly driven by the drive motor 42.
[0036] During setup, a mounting block 54 is provided on the rotating ring 52, and a square hole is formed on the mounting block 54. The length direction of the square hole is perpendicular to the orientation of the circular hole in the rotating ring 52. A square block 55 is slidably disposed within the square hole, and the cutting blade 53 is connected to the square block 55. The square block 55 and the cutting blade 53 slide synchronously to ensure the stability of the sliding of the cutting blade 53. A strip hole 56 is formed on the mounting block 54, and the strip hole 56 communicates with the square hole. The adjusting component 70 includes a connecting block 71 that is slidably disposed within the strip hole 56 and connected to the square block 55. The connecting block 71 and the square block 55 slide synchronously. Fixing blocks 72 are provided on both sides of the strip hole 56 on the mounting block 54. A first threaded rod 73 is rotatably provided between the two fixing blocks 72. The connecting block 71 is screwed to the first threaded rod 73 through the threaded hole. The end of the first threaded rod 73 away from the cutting blade 53 passes through the fixing block 72 and is provided with a rotating handle 74. Rotating the rotating handle 74 drives the first threaded rod 73 to rotate, so that the connecting block 71 slides and drives the square block 55 and the cutting blade 53 to slide.
[0037] The rotating assembly 60 includes a rotating motor 61 horizontally mounted on the mounting plate 51. A drive wheel 62 is mounted on the output shaft of the rotating motor 61. A toothed ring 63 is fixedly sleeved on the outside of the rotating ring 52. The toothed ring 63 meshes with the drive wheel 62. The rotating motor 61 drives the drive wheel 62 to rotate, which causes the toothed ring 63 to rotate and drive the rotating ring 52 to rotate.
[0038] In its specific configuration, the cable sheathing assembly 80 includes a rotating shaft 81 horizontally rotatably positioned between two vertical plates 50. A support roller 82 is fixedly sleeved on the rotating shaft 81. After the cable passes through the rotating ring 52, the lower part of the cable contacts the top of the support roller 82, which supports the cable. The support roller 82 has a circumferentially oriented support groove that engages with the cable to prevent it from shifting. A top plate 83 is shared at the top of the two vertical plates 50. Two sliding rods 84 are vertically slidable on the top plate 83. The lower ends of the two sliding rods 84 are located below the top plate 83 and share a lifting plate 85. The lifting plate 85 and the sliding rods 84 rise and fall synchronously. A cable sheathing knife 86 is positioned at the bottom of the lifting plate 85, directly above the support roller 82. As the lifting plate 85 and the cable sheathing knife 86 descend, the cable sheathing knife 86 pierces into the cable sheath. The feeding roller 30 continues to push the cable, and under the support and compression of the support roller 82, the cable sheath is cut open by the cable sheathing knife 86. A second threaded rod 87 is vertically rotatably mounted on the lifting plate 85. The top plate 83 is screwed to the second threaded rod 87 through a threaded hole. The top of the second threaded rod 87 is higher than the top of the slide bar 84 and is equipped with a rotating handle 88. Rotating the rotating handle 88 drives the second threaded rod 87 to rotate, causing the second threaded rod 87 to rise and fall, thereby driving the lifting plate 85 to rise and fall.
[0039] The cable sheath assembly 90 includes a winding roller 91 horizontally rotatably mounted on the frame 10. Baffles 92 are provided at both ends of the winding roller 91. A winding motor 93 is horizontally mounted at the bottom of the worktable 11. The output shaft of the winding motor 93 is connected to the winding roller 91. After the cable passes through the support roller 82 and the sheath-breaking knife 86, a slit is cut in the cable sheath. The operator then peels off the end of the cable sheath and connects it to the winding roller 91. The winding motor 93 is then started, causing the subsequently cut cable sheath to be wound around the winding roller 91. Specifically, screw holes are provided on the winding roller 91. The end of the cable sheath is peeled open, and a hole is drilled using an electric drill. A screw is then passed through the hole and screwed into it to connect the cable sheath to the winding roller 91.
[0040] The operating principle of the anti-interference cable sheath stripping device in this embodiment is as follows: One end of the cable is placed between two feeding rollers 30, and then the drive motor 42 is started to drive the two feeding rollers 30 to rotate, driving the cable backward through the rotating ring 52 to the support roller 82. The support roller 82 supports the cable. Rotating the handle 88 drives the second threaded rod 87 to rotate, causing the second threaded rod 87 to descend, which in turn drives the lifting plate 85 and the sheath-breaking knife 86 to descend, allowing the sheath-breaking knife 86 to pierce into the cable sheath. The feeding rollers 30 continue to push the cable, cutting a slit in the cable sheath. After the operator strips the end of the cable sheath, it is connected to the winding roller 91. Then, the winding motor 93 is started, so that the subsequently cut cable sheath is wound around the winding roller 91. Once the predetermined stripping length is reached, the operator rotates the handle 74 to rotate the first threaded rod 73, causing the connecting block 71 to slide and drive the square block 55 and the cutting blade 53 to slide. The cutting blade 53 pierces the cable sheath. Then, the rotating motor 61 is started to drive the drive wheel 62 to rotate, causing the toothed ring 63 to rotate and drive the rotating ring 52 and the cutting blade 53 to rotate, thus circumferentially cutting the cable sheath and making it easier to remove the cable sheath.
[0041] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A device for stripping the sheath of an anti-interference cable, characterized in that: The system includes a frame (10), a workbench (11) on top of the frame (10), a mounting frame (20) on one side of the top surface of the workbench (11), two horizontally spaced feeding rollers (30) vertically rotatably mounted on the mounting frame (20), a drive assembly (40) for driving the two feeding rollers (30) to rotate synchronously in opposite directions on the workbench (11), two vertical plates (50) spaced apart in the middle of the workbench (11), and a mounting plate (51) shared by the two vertical plates (50) on the side adjacent to the mounting frame (20). (51) An opening is provided horizontally on the upper part, and a rotating ring (52) is horizontally rotatably arranged in the opening. A rotating component (60) for driving the rotating ring (52) to rotate is provided on the mounting plate (51). A cutting blade (53) is slidably arranged on the side of the rotating ring (52) away from the mounting frame (20). An adjusting component (70) for adjusting the sliding position of the cutting blade (53) is provided on the rotating ring (52). A skin-breaking component (80) is arranged between the two upright plates (50). A skin-rolling component (90) is arranged on the side of the workbench (11) away from the mounting frame (20).
2. The anti-interference cable sheath stripping device according to claim 1, characterized in that: The rotating ring (52) is provided with a mounting block (54), the mounting block (54) is provided with a square hole, a square block (55) is slidably disposed in the square hole, and the cutting blade (53) is connected to the square block (55).
3. The anti-interference cable sheath stripping device according to claim 2, characterized in that: The mounting block (54) has a strip hole (56) that communicates with a square hole. The adjusting component (70) includes a connecting block (71) that is slidably disposed in the strip hole (56) and connected to the square block (55). Fixing blocks (72) are provided on both sides of the strip hole (56) on the mounting block (54). A first threaded rod (73) is rotatably disposed between the two fixing blocks (72). The connecting block (71) is helically connected to the first threaded rod (73) through a threaded hole. The end of the first threaded rod (73) away from the cutting blade (53) passes through the fixing block (72) and is provided with a rotating handle (74).
4. The anti-interference cable sheath stripping device according to claim 1, characterized in that: The mounting frame (20) includes vertical plates (21) spaced apart on the workbench (11), two horizontal plates (22) spaced vertically between the two vertical plates (21), and two horizontally spaced rotating shafts (23) arranged vertically between the two horizontal plates (22). The feeding rollers (30) are respectively fixedly sleeved on the corresponding rotating shafts (23).
5. The anti-interference cable sheath stripping device according to claim 4, characterized in that: The lower end of the rotating shaft (23) passes through the lower horizontal plate (22). The drive assembly (40) includes a gear (41) disposed at the lower end of the rotating shaft (23). The two gears (41) mesh. A drive motor (42) is vertically disposed on the worktable (11). The output axis of the drive motor (42) is upward and connected to one of the rotating shafts (23).
6. The anti-interference cable sheath stripping device according to claim 1, characterized in that: The skin-breaking assembly (80) includes a rotating shaft (81) horizontally rotatably disposed between two upright plates (50). A support roller (82) is fixedly sleeved on the rotating shaft (81). A top plate (83) is commonly disposed on the top of the two upright plates (50). Two sliding rods (84) are vertically slidably disposed on the top plate (83). The lower ends of the two sliding rods (84) are located below the top plate (83) and are commonly disposed on a lifting plate (85). A skin-breaking knife (86) is disposed at the bottom of the lifting plate (85) directly above the support roller (82). A second threaded rod (87) is vertically rotatably disposed on the lifting plate (85). The top plate (83) is helically connected to the second threaded rod (87) through a threaded hole. The top of the second threaded rod (87) is higher than the top of the sliding rod (84) and is provided with a rotating handle (88).
7. The anti-interference cable sheath stripping device according to claim 1, characterized in that: The rolling assembly (90) includes a winding roller (91) that is horizontally rotatably mounted on the frame (10). The winding roller (91) has baffles (92) at both ends. The bottom of the worktable (11) is horizontally mounted with a rolling motor (93). The output shaft of the rolling motor (93) is connected to the winding roller (91).
8. The anti-interference cable sheath stripping device according to claim 1, characterized in that: The feeding roller (30) has an annular groove (31) and several rubber strips (32) are spaced apart in the annular groove (31).
9. The anti-interference cable sheath stripping device according to claim 1, characterized in that: The rotating assembly (60) includes a rotating motor (61) horizontally mounted on a mounting plate (51). A drive wheel (62) is mounted on the output shaft of the rotating motor (61). A toothed ring (63) is fixedly sleeved on the rotating ring (52), and the toothed ring (63) meshes with the drive wheel (62).