A traction device

Abstract

This invention discloses a traction device designed to address the shortcomings of traction devices with a fixed distance between their two traction wheels, which can lead to jamming and damage to the traction object during traction. The invention includes a base and a mounting seat movably mounted on the base. The base connects to a fixed traction wheel, and the mounting seat connects to a movable traction wheel. A traction distance is formed between the movable and fixed traction wheels. A buffer mechanism is correspondingly provided on the movable traction wheel, providing a buffering force to mitigate changes in the traction distance. This traction device avoids the jamming and damage that can occur when copper pipes or wires are clamped between the movable and fixed traction wheels during traction.

Description

Technical Field

[0001] This invention relates to the field of cable processing technology, and more specifically, to a traction device. Background Technology

[0002] During the processing of copper tubes and wires, traction is required to transport them forward while processing. Currently, most methods for traction of copper tubes and wires use traction devices, which clamp the copper tubes and wires between two traction wheels. The rotation of the traction wheels drives the copper tubes and wires forward. However, during traction, the distance between the two traction wheels is fixed, leading to the possibility of the copper tubes and wires getting stuck and damaged. For example, Chinese Patent Application No. 2026104618913 discloses a copper wire hot-melting processing and forming system. Molten copper passes through a holding furnace and a crystallizer to form solid copper wire, which is then pulled out by a traction device. The distance between the two traction wheels of the traction device is fixed, resulting in the possibility of the copper wire getting stuck and damaged during the traction process. Summary of the Invention

[0003] To overcome the above shortcomings, this invention provides a traction device that avoids the phenomenon of jamming and damage that occurs when copper pipes or copper wires are clamped between two traction wheels during traction.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a traction device, including a base and a mounting seat movably mounted on the base, the base being connected to a fixed traction wheel, the mounting seat being connected to a movable traction wheel, a traction gap being formed between the movable traction wheel and the fixed traction wheel, and a buffer mechanism being provided correspondingly to the movable traction wheel, the buffer mechanism providing a buffering force to the movable traction wheel so that the traction gap can buffer changes.

[0005] During copper pipe or wire traction operations, first adjust the distance between the movable and fixed traction wheels by moving the mounting base according to the thickness of the copper pipe or wire, clamping the copper pipe or wire between them. The movable and fixed traction wheels rotate, thus propelling the copper pipe or wire forward to achieve traction. A buffer mechanism provides cushioning force to the movable traction wheel, allowing for buffering changes in the traction distance and preventing jamming that could damage the copper pipe or wire during traction.

[0006] Preferably, a lifting screw driven by a lifting motor is installed on the base, and the lifting screw is connected to the mounting base.

[0007] The lifting motor drives the lifting screw to rotate, thereby pushing the mounting base to move up and down smoothly and reliably.

[0008] Preferably, a drive gear is installed on the output shaft of the lifting motor, and several circumferentially spaced lifting screws are provided. A driven gear is installed on the lifting screw, and the drive gear and the driven gear mesh and drive each other. A screw sleeve is installed on the machine base, and the lifting screw is threadedly connected to the screw sleeve.

[0009] The driving gear on the output shaft of the lifting motor drives the driven gear, which in turn rotates the lifting screw. The lifting screw engages with the threaded sleeve, thus achieving lifting and lowering movement while the lifting screw rotates. Several lifting screws are spaced circumferentially to ensure the smoothness and reliability of the lifting and lowering movement of the mounting base.

[0010] Preferably, the buffer mechanism includes a buffer cylinder and a buffer spring. A lifting block that moves vertically is installed on the top of the buffer cylinder. The buffer spring is installed between the buffer cylinder and the lifting block. The lifting screw is rotatably connected to the lifting block. The buffer cylinder is fastened to the mounting base.

[0011] Under the action of the buffer spring, the lifting block abuts against the top of the buffer cylinder. The buffer mechanism is connected between the lifting screw and the mounting base; the lifting screw's movement drives the mounting base to move up and down. During traction, before jamming occurs, the movable traction wheel is lifted upwards, compressing the buffer spring, thereby increasing the traction distance and preventing jamming during traction. After normal traction, the movable traction wheel returns to its original position under the action of the buffer spring.

[0012] Another option is to install a lifting piston cylinder on the base, with the extension rod of the lifting piston cylinder connected to the mounting base.

[0013] The mounting base is moved by a lifting piston cylinder, ensuring stability and reliability.

[0014] Preferably, the buffer mechanism includes a connecting seat and a buffer spring. The connecting seat is connected to the telescopic rod of the lifting piston cylinder, the telescopic rod of the lifting piston cylinder is connected to a limiting block, the connecting seat is fastened to the mounting seat, the limiting block and the buffer spring are placed between the connecting seat and the mounting seat, and the buffer spring abuts against the mounting seat and the limiting block.

[0015] The buffer spring provides cushioning force to the movable traction wheel, allowing it to move and thus adjust the traction distance, preventing jamming during traction. The lifting piston cylinder telescopic rod is fitted with the connecting seat, enabling mutual sliding between the two. The limit block is positioned on the connecting seat, allowing axial movement and ensuring that the lifting piston cylinder telescopic rod can push and pull the mounting seat.

[0016] In another embodiment, the buffer mechanism includes a transverse slide and a buffer spring. The transverse slide is mounted on the mounting base and moves laterally back and forth. Buffer springs are installed on both sides of the transverse slide and between the mounting base. A movable traction wheel is mounted on the transverse slide.

[0017] The movable traction wheel moves laterally back and forth along with the transverse sliding block, causing the movable traction wheel to deviate from the fixed traction wheel, thereby increasing the distance between the movable and fixed traction wheels and preventing jamming during traction that could damage the copper pipe or copper wire.

[0018] Preferably, the base is provided with two opposing sliding grooves, and the two ends of the mounting base are slidably installed in the two sliding grooves respectively.

[0019] The mounting base slides smoothly and reliably along the grooves at both ends.

[0020] Preferably, a pressure sensor is installed between the buffer mechanism and the mounting base.

[0021] The clamping force of the movable traction wheel on the copper pipe or copper wire is detected by a pressure sensor. The pressure sensor is electrically connected to the control system, which is connected to the display. The data detected by the pressure sensor is transmitted to the control system, which processes the data and displays the clamping force on the display, so as to facilitate real-time control of the clamping force.

[0022] Preferably, the fixed traction wheel includes an outer wheel rim and an inner wheel rim that are fitted together. The inner wheel rim is provided with several sliding pins spaced apart circumferentially. An abutment spring is installed between the sliding pins and the inner wheel rim. The inner wall of the outer wheel rim is provided with several positioning grooves spaced apart circumferentially. The two opposite side walls of the positioning grooves are inclined. The ends of the sliding pins are adapted to be inserted into the positioning grooves.

[0023] During the rotation of the fixed traction wheel, when jamming occurs, the friction between the outer wheel rim and the towed object increases, while the inner wheel rim continues to rotate, causing the sliding column to retract. The outer and inner wheel rims slip against each other, preventing excessive torque from damaging the motor. The sliding column slides to the next positioning slot and pops outward. If the jamming disappears at this point, the outer and inner wheel rims continue to rotate synchronously. If the jamming persists, the sliding column continues to retract, and the outer and inner wheel rims slip against each other. This structural design allows the outer and inner wheel rims to slip, preventing jamming and potential motor damage.

[0024] Compared with the prior art, the beneficial effects of the present invention are: (1) The traction device of this application avoids the phenomenon of jamming and damage during the traction process when the copper pipe or copper wire is clamped between the movable traction wheel and the fixed traction wheel; (2) The buffer mechanism has a variety of different structures, which can be freely selected as needed, which is flexible and convenient; (3) The fixed traction wheel includes an outer wheel ring and an inner wheel ring that are fitted together. The outer wheel ring and the inner wheel ring can slip, avoiding jamming and damage to the motor; (4) The clamping force of the movable traction wheel on the copper pipe or copper wire is displayed on the display screen, which makes it easy to control the magnitude of the clamping force in real time. Attached Figure Description

[0025] Figure 1 This is a structural diagram of Embodiment 1 of the present invention.

[0026] Figure 2 This is a partial exploded view of Embodiment 1 of the present invention.

[0027] Figure 3 This is a partial cross-sectional view of Embodiment 1 of the present invention.

[0028] Figure 4 This is a structural diagram of Embodiment 2 of the present invention.

[0029] Figure 5 This is a partial cross-sectional view of Embodiment 2 of the present invention.

[0030] Figure 6 This is a front view of Embodiment 3 of the present invention.

[0031] Figure 7 This is a connection diagram of the transverse sliding block in Embodiment 3 of the present invention.

[0032] Figure 8 These are cross-sectional views of the fixed traction wheel in embodiments 4, 5, and 6 of the present invention.

[0033] In the diagram: 1. Base, 2. Mounting seat, 3. Support platform, 4. Fixed traction wheel, 5. Movable traction wheel, 6. Mounting window, 7. Slide groove, 8. Traction spacing, 9. Traction motor, 10. Rotary shaft, 11. Lifting motor, 12. Lifting screw, 13. Driving gear, 14. Driven gear, 15. Screw sleeve, 16. Upper body, 17. Lower body, 18. Buffer cylinder, 19. Buffer spring, 20. Lifting block, 21. Mounting hole, 22. Flange, 23. Surface bearing, 24. End cover, 25. Lifting piston cylinder, 26. Connecting seat, 27. Connecting hole, 28. Limiting block, 29. Lateral slide, 30. Lateral groove, 31. Support, 32. Slide rod, 33. Outer wheel ring, 34. Inner wheel ring, 35. Slide column, 36. Abutment spring, 37. Positioning groove, 38. Pressure sensor. Detailed Implementation

[0034] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Example 1: A traction device (see Figure 1 , Figure 2 , Figure 3 The device includes a base 1 and a mounting seat 2 that is movably mounted on the base 1. A support platform 3 is mounted on the bottom of the base 1, providing support for the entire device. The base 1 is connected to a fixed traction wheel 4, and the mounting seat 2 is connected to a movable traction wheel 5. An installation window 6 is provided on the base 1. The fixed traction wheel 4 is rotatably mounted at the lower position of the installation window 6, and the mounting seat 2 is raised and lowered to be mounted at the upper position of the installation window 6. The mounting seat 2 has an inverted U-shaped structure, and two opposing sliding grooves 7 are provided on the base 1. The two ends of the mounting seat 2 are slidably mounted in the two sliding grooves 7, which are located on the two opposite side walls of the installation window 6.

[0035] A movable traction wheel 5 is positioned above a fixed traction wheel 4, forming a traction gap 8 between them. A buffer mechanism is correspondingly installed on the movable traction wheel 5, providing a buffering force to mitigate changes in the traction gap 8. A traction motor 9, a geared motor, is mounted on the base 1 to drive the fixed traction wheel 4. The output shaft of the traction motor 9 is coaxially connected to the rotating shaft 10 on the fixed traction wheel 4, which is rotatably mounted on the base 1. The traction motor 9 drives the fixed traction wheel 4, providing stable and reliable traction force.

[0036] A lifting screw 12, driven by a lifting motor 11, is mounted on the base 1 and connected to the mounting base 2. A drive gear 13 is mounted on the output shaft of the lifting motor 11. Several lifting screws 12 are spaced circumferentially around the output shaft of the lifting motor 11, with four screws 12 positioned around this area. A driven gear 14 is mounted on each lifting screw 12, meshing with the drive gear 13. A threaded sleeve 15 is mounted on the base 1, and the lifting screws 12 are threadedly connected to the threaded sleeve 15. The drive gear 13 on the output shaft of the lifting motor 11 drives the driven gear 14, thereby rotating the lifting screws 12. The threaded engagement between the lifting screws 12 and the threaded sleeve 15 allows for simultaneous rotation and lifting / lowering movement of the lifting screws 12. The circumferential spacing of the lifting screws 12 ensures the smoothness and reliability of the lifting / lowering movement of the mounting base 2.

[0037] The base 1 includes an upper body 16 and a lower body 17. A mounting window 6 is located on the lower body 17. The lifting motor 11 and the screw sleeve 15 are both mounted on the top of the upper body 16. The buffer mechanism includes a buffer cylinder 18 and a buffer spring 19. The buffer spring 19 is installed in the buffer cylinder 18. The buffer cylinder 18 and the lifting screw 12 are arranged in a one-to-one correspondence. A lifting block 20 for lifting and moving is installed on the top of the buffer cylinder 18. The buffer spring 19 is installed between the buffer cylinder 18 and the lifting block 20. The lifting screw 12 is rotatably connected to the lifting block 20. The buffer cylinder 18 is securely connected to the mounting base 2. A mounting hole 21 is provided on the lifting block 20. A flange 22 is provided at the lower part of the lifting screw 12. Plane bearings 23 are installed on both the upper and lower sides of the flange 22 on the lifting screw 12. The plane bearings 23 are installed in the mounting hole 21. An end cover 24 is installed on the top of the lifting block 20, and the lifting screw 12 passes through the end cover 24.

[0038] A pressure sensor 38 is installed between the buffer mechanism and the mounting base 2. The pressure sensor 38 is connected between the lower end of the buffer cylinder 18 and the mounting base 2. The pressure sensor 38 detects the clamping force of the movable traction wheel 5 on the copper tube or copper wire. The pressure sensor 38 is electrically connected to the control system, and the control system is connected to the display. The data detected by the pressure sensor 38 is transmitted to the control system, which processes the data and displays the clamping force on the display, so as to facilitate real-time control of the clamping force.

[0039] During the copper pipe or wire traction operation, first adjust the distance between the movable traction wheel 5 and the fixed traction wheel 4 by moving the mounting base 2 according to the thickness of the copper pipe or wire, clamping the copper pipe or wire between the movable traction wheel 5 and the fixed traction wheel 4. The movable traction wheel 5 and the fixed traction wheel 4 rotate, thereby pushing the copper pipe or wire forward to achieve traction. The buffer mechanism provides a buffering force to the movable traction wheel 5, allowing the traction distance 8 to buffer changes, thus avoiding jamming during the traction process and preventing damage to the copper pipe or wire.

[0040] Example 2: A traction device (see Figure 4 , Figure 5 The device includes a base 1 and a mounting seat 2 that is movably mounted on the base 1. A support platform 3 is mounted on the bottom of the base 1, providing support for the entire device. The base 1 is connected to a fixed traction wheel 4, and the mounting seat 2 is connected to a movable traction wheel 5. An installation window 6 is provided on the base 1. The fixed traction wheel 4 is rotatably mounted at the lower position of the installation window 6, and the mounting seat 2 is raised and lowered to be mounted at the upper position of the installation window 6. The mounting seat 2 has an inverted U-shaped structure, and two opposing sliding grooves 7 are provided on the base 1. The two ends of the mounting seat 2 are slidably mounted in the two sliding grooves 7, which are located on the two opposite side walls of the installation window 6.

[0041] A movable traction wheel 5 is positioned above a fixed traction wheel 4, forming a traction gap 8 between them. A buffer mechanism is correspondingly installed on the movable traction wheel 5, providing a buffering force to mitigate changes in the traction gap 8. A traction motor 9, a geared motor, is mounted on the base 1 to drive the fixed traction wheel 4. The output shaft of the traction motor 9 is coaxially connected to the rotating shaft 10 on the fixed traction wheel 4, which is rotatably mounted on the base 1. The traction motor 9 drives the fixed traction wheel 4, providing stable and reliable traction force.

[0042] A lifting piston cylinder 25 is mounted on the base 1, and the telescopic rod of the lifting piston cylinder 25 is connected to the mounting base 2. The lifting piston cylinder 25 is mounted on the top of the base 1. The buffer mechanism includes a connecting seat 26 and a buffer spring 19. The connecting seat 26 is fitted with the telescopic rod of the lifting piston cylinder 25. The connecting seat 26 is provided with an inverted T-shaped connecting hole 27. The telescopic rod of the lifting piston cylinder 25 is fitted with the small diameter portion of the connecting hole 27. The telescopic rod of the lifting piston cylinder 25 is connected to a limiting block 28, and the limiting block 28 is fitted with the large diameter portion of the connecting hole 27. The connecting seat 26 is fastened to the mounting base 2. The limiting block 28 and the buffer spring 19 are placed between the connecting seat 26 and the mounting base 2, with the buffer spring 19 abutting between the mounting base 2 and the limiting block 28.

[0043] The lifting piston cylinder 25 drives the mounting base 2 to move stably and reliably. A buffer spring 19 provides a buffering force to the movable traction wheel 5, allowing it to move and thus adjust the traction distance 8, preventing jamming during the traction process. The telescopic rod of the lifting piston cylinder 25 is fitted onto the connecting seat 26, enabling mutual sliding. The limiting block 28 is positioned on the connecting seat 26, allowing axial movement and ensuring the telescopic rod of the lifting piston cylinder 25 can push and pull the mounting base 2. The lifting piston cylinder 25 uses a pneumatic or hydraulic cylinder. The pressure of the medium inside the lifting piston cylinder 25 indicates the clamping force of the movable traction wheel 5 on the copper pipe or wire. A pressure detector is installed on the medium pipeline of the lifting piston cylinder 25 to monitor the pressure in real time, and the pressure is displayed on a monitor for easy control.

[0044] During the copper pipe or wire traction operation, first adjust the distance between the movable traction wheel 5 and the fixed traction wheel 4 by moving the mounting base 2 according to the thickness of the copper pipe or wire, clamping the copper pipe or wire between the movable traction wheel 5 and the fixed traction wheel 4. The movable traction wheel 5 and the fixed traction wheel 4 rotate, thereby pushing the copper pipe or wire forward to achieve traction. The buffer mechanism provides a buffering force to the movable traction wheel 5, allowing the traction distance 8 to buffer changes, thus avoiding jamming during the traction process and preventing damage to the copper pipe or wire.

[0045] Example 3: A traction device (see Figure 6 , Figure 7 The device includes a base 1 and a mounting seat 2 that is movably mounted on the base 1. A support platform 3 is mounted on the bottom of the base 1, providing support for the entire device. The base 1 is connected to a fixed traction wheel 4, and the mounting seat 2 is connected to a movable traction wheel 5. An installation window 6 is provided on the base 1. The fixed traction wheel 4 is rotatably mounted at the lower position of the installation window 6, and the mounting seat 2 is raised and lowered to be mounted at the upper position of the installation window 6. The mounting seat 2 has an inverted U-shaped structure, and two opposing sliding grooves 7 are provided on the base 1. The two ends of the mounting seat 2 are slidably mounted in the two sliding grooves 7, which are located on the two opposite side walls of the installation window 6.

[0046] A movable traction wheel 5 is positioned above a fixed traction wheel 4, forming a traction gap 8 between them. A buffer mechanism is correspondingly installed on the movable traction wheel 5, providing a buffering force to mitigate changes in the traction gap 8. A traction motor 9, a geared motor, is mounted on the base 1 to drive the fixed traction wheel 4. The output shaft of the traction motor 9 is coaxially connected to the rotating shaft 10 on the fixed traction wheel 4, which is rotatably mounted on the base 1. The traction motor 9 drives the fixed traction wheel 4, providing stable and reliable traction force.

[0047] A lifting piston cylinder 25 is installed on the base 1, and the telescopic rod of the lifting piston cylinder 25 is connected to the mounting base 2. The lifting piston cylinder 25 is installed on the top of the base 1. The buffer mechanism includes a transverse slide 29 and a buffer spring 19. The transverse slide 29 is installed on the mounting base 2 and moves laterally back and forth. Buffer springs 19 are installed on both the front and rear sides of the transverse slide 29 and between the transverse slide 29 and the mounting base 2. A movable traction wheel 5 is installed on the transverse slide 29. A transverse groove 30 is provided on the mounting base 2, and the transverse slide 29 is slidably connected to the transverse groove 30. Two supports 31 are provided on both the front and rear sides of the mounting base 2. The supports 31 on the front and rear sides of the mounting base 2 are arranged opposite each other. A slide rod 32 is connected between the supports 31 on the front and rear sides of the mounting base 2. The slide rod 32 is inserted into the transverse slide 29. The buffer spring 19 is fitted onto the slide rod 32. Buffer springs 19 are installed between the front side of the transverse slide 29 and the supports 31, and between the rear side of the transverse slide 29 and the supports 31.

[0048] The lifting piston cylinder 25 drives the mounting base 2 to move, ensuring stability and reliability. The movable traction wheel 5 moves laterally back and forth along with the transverse sliding block 29, causing it to deviate from the fixed traction wheel 4. This increases the distance between the movable and fixed traction wheels, preventing jamming during traction and thus avoiding damage to the copper pipe or wire. The lifting piston cylinder 25 is either a pneumatic or hydraulic cylinder. The pressure of the medium within the lifting piston cylinder 25 indicates the clamping force of the movable traction wheel 5 on the copper pipe or wire. A pressure detector is installed on the medium pipeline of the lifting piston cylinder 25 to monitor the pressure in real time, and the pressure is displayed on a monitor for easy control.

[0049] During the copper pipe or wire traction operation, first adjust the distance between the movable traction wheel 5 and the fixed traction wheel 4 by moving the mounting base 2 according to the thickness of the copper pipe or wire, clamping the copper pipe or wire between the movable traction wheel 5 and the fixed traction wheel 4. The movable traction wheel 5 and the fixed traction wheel 4 rotate, thereby pushing the copper pipe or wire forward to achieve traction. The buffer mechanism provides a buffering force to the movable traction wheel 5, allowing the traction distance 8 to buffer changes, thus avoiding jamming during the traction process and preventing damage to the copper pipe or wire.

[0050] Example 4: A traction device (see Figure 1 , Figure 2 , Figure 8 The device includes a base 1 and a mounting seat 2 that is movably mounted on the base 1. A support platform 3 is mounted on the bottom of the base 1, providing support for the entire device. The base 1 is connected to a fixed traction wheel 4, and the mounting seat 2 is connected to a movable traction wheel 5. An installation window 6 is provided on the base 1. The fixed traction wheel 4 is rotatably mounted at the lower position of the installation window 6, and the mounting seat 2 is raised and lowered to be mounted at the upper position of the installation window 6. The mounting seat 2 has an inverted U-shaped structure, and two opposing sliding grooves 7 are provided on the base 1. The two ends of the mounting seat 2 are slidably mounted in the two sliding grooves 7, which are located on the two opposite side walls of the installation window 6.

[0051] A movable traction wheel 5 is positioned above a fixed traction wheel 4, forming a traction gap 8 between them. A buffer mechanism is correspondingly installed on the movable traction wheel 5, providing a buffering force to mitigate changes in the traction gap 8. A traction motor 9, a geared motor, is mounted on the base 1 to drive the fixed traction wheel 4. The output shaft of the traction motor 9 is coaxially connected to the rotating shaft 10 on the fixed traction wheel 4, which is rotatably mounted on the base 1. The traction motor 9 drives the fixed traction wheel 4, providing stable and reliable traction force.

[0052] A lifting screw 12, driven by a lifting motor 11, is mounted on the base 1 and connected to the mounting base 2. A drive gear 13 is mounted on the output shaft of the lifting motor 11. Several lifting screws 12 are spaced circumferentially around the output shaft of the lifting motor 11, with four screws 12 positioned around this area. A driven gear 14 is mounted on each lifting screw 12, meshing with the drive gear 13. A threaded sleeve 15 is mounted on the base 1, and the lifting screws 12 are threadedly connected to the threaded sleeve 15. The drive gear 13 on the output shaft of the lifting motor 11 drives the driven gear 14, thereby rotating the lifting screws 12. The threaded engagement between the lifting screws 12 and the threaded sleeve 15 allows for simultaneous rotation and lifting / lowering movement of the lifting screws 12. The circumferential spacing of the lifting screws 12 ensures the smoothness and reliability of the lifting / lowering movement of the mounting base 2.

[0053] The base 1 includes an upper body 16 and a lower body 17. A mounting window 6 is located on the lower body 17. The lifting motor 11 and the screw sleeve 15 are both mounted on the top of the upper body 16. The buffer mechanism includes a buffer cylinder 18 and a buffer spring 19. The buffer spring 19 is installed in the buffer cylinder 18. The buffer cylinder 18 and the lifting screw 12 are arranged in a one-to-one correspondence. A lifting block 20 for lifting and moving is installed on the top of the buffer cylinder 18. The buffer spring 19 is installed between the buffer cylinder 18 and the lifting block 20. The lifting screw 12 is rotatably connected to the lifting block 20. The buffer cylinder 18 is securely connected to the mounting base 2. A mounting hole 21 is provided on the lifting block 20. A flange 22 is provided at the lower part of the lifting screw 12. Plane bearings 23 are installed on both the upper and lower sides of the flange 22 on the lifting screw 12. The plane bearings 23 are installed in the mounting hole 21. An end cover 24 is installed on the top of the lifting block 20, and the lifting screw 12 passes through the end cover 24.

[0054] A pressure sensor 38 is installed between the buffer mechanism and the mounting base 2. The pressure sensor 38 is connected between the lower end of the buffer cylinder 18 and the mounting base 2. The pressure sensor 38 detects the clamping force of the movable traction wheel 5 on the copper tube or copper wire. The pressure sensor 38 is electrically connected to the control system, and the control system is connected to the display. The data detected by the pressure sensor 38 is transmitted to the control system, which processes the data and displays the clamping force on the display, so as to facilitate real-time control of the clamping force.

[0055] The fixed traction wheel 4 includes an outer wheel rim 33 and an inner wheel rim 34 fitted together. The inner wheel rim 34 is securely mounted on the rotating shaft 10. Several sliding pillars 35 are circumferentially spaced on the inner wheel rim 34. Abutment spring 36 is installed between the sliding pillars 35 and the inner wheel rim 34. Several positioning grooves 37 are circumferentially spaced on the inner wall of the outer wheel rim 33, with more positioning grooves 37 than sliding pillars 35. The two opposite sidewalls of the positioning grooves 37 are inclined. The ends of the sliding pillars 35 have a trapezoidal structure and are fitted into the positioning grooves 37. During the rotation of the fixed traction wheel 4, when encountering jamming, the friction between the outer wheel rim 33 and the pulled object increases, while the inner wheel rim 34 continues to rotate, causing the sliding pillars 35 to retract. The outer wheel rim 33 and the inner wheel 34 slip against each other, preventing excessive torque from damaging the motor. The sliding pillars 35 slide to the next positioning groove 37 and pop outwards. If the jamming disappears at this point, the outer wheel rim 33 and the inner wheel rim 34 continue to rotate synchronously. If the jamming persists, the slide bar 35 continues to retract, causing the outer wheel rim 33 and the inner wheel rim 34 to slip against each other. This structural design allows the outer wheel rim 33 and the inner wheel rim 34 to slip, preventing jamming from damaging the motor.

[0056] During the copper pipe or wire traction operation, first adjust the distance between the movable traction wheel 5 and the fixed traction wheel 4 by moving the mounting base 2 according to the thickness of the copper pipe or wire, clamping the copper pipe or wire between the movable traction wheel 5 and the fixed traction wheel 4. The movable traction wheel 5 and the fixed traction wheel 4 rotate, thereby pushing the copper pipe or wire forward to achieve traction. The buffer mechanism provides a buffering force to the movable traction wheel 5, allowing the traction distance 8 to buffer changes, thus avoiding jamming during the traction process and preventing damage to the copper pipe or wire.

[0057] Example 5: A traction device (see Figure 4 , Figure 8The device includes a base 1 and a mounting seat 2 that is movably mounted on the base 1. A support platform 3 is mounted on the bottom of the base 1, providing support for the entire device. The base 1 is connected to a fixed traction wheel 4, and the mounting seat 2 is connected to a movable traction wheel 5. An installation window 6 is provided on the base 1. The fixed traction wheel 4 is rotatably mounted at the lower position of the installation window 6, and the mounting seat 2 is raised and lowered to be mounted at the upper position of the installation window 6. The mounting seat 2 has an inverted U-shaped structure, and two opposing sliding grooves 7 are provided on the base 1. The two ends of the mounting seat 2 are slidably mounted in the two sliding grooves 7, which are located on the two opposite side walls of the installation window 6.

[0058] A movable traction wheel 5 is positioned above a fixed traction wheel 4, forming a traction gap 8 between them. A buffer mechanism is correspondingly installed on the movable traction wheel 5, providing a buffering force to mitigate changes in the traction gap 8. A traction motor 9, a geared motor, is mounted on the base 1 to drive the fixed traction wheel 4. The output shaft of the traction motor 9 is coaxially connected to the rotating shaft 10 on the fixed traction wheel 4, which is rotatably mounted on the base 1. The traction motor 9 drives the fixed traction wheel 4, providing stable and reliable traction force.

[0059] A lifting piston cylinder 25 is mounted on the base 1, and the telescopic rod of the lifting piston cylinder 25 is connected to the mounting base 2. The lifting piston cylinder 25 is mounted on the top of the base 1. The buffer mechanism includes a connecting seat 26 and a buffer spring 19. The connecting seat 26 is fitted with the telescopic rod of the lifting piston cylinder 25. The connecting seat 26 is provided with an inverted T-shaped connecting hole 27. The telescopic rod of the lifting piston cylinder 25 is fitted with the small diameter portion of the connecting hole 27. The telescopic rod of the lifting piston cylinder 25 is connected to a limiting block 28, and the limiting block 28 is fitted with the large diameter portion of the connecting hole 27. The connecting seat 26 is fastened to the mounting base 2. The limiting block 28 and the buffer spring 19 are placed between the connecting seat 26 and the mounting base 2, with the buffer spring 19 abutting between the mounting base 2 and the limiting block 28.

[0060] The lifting piston cylinder 25 drives the mounting base 2 to move stably and reliably. A buffer spring 19 provides a buffering force to the movable traction wheel 5, allowing it to move and thus adjust the traction distance 8, preventing jamming during the traction process. The telescopic rod of the lifting piston cylinder 25 is fitted onto the connecting seat 26, enabling mutual sliding. The limiting block 28 is positioned on the connecting seat 26, allowing axial movement and ensuring that the telescopic rod of the lifting piston cylinder 25 can push and pull the mounting base 2.

[0061] The lifting piston cylinder 25 is a pneumatic or hydraulic cylinder. The clamping force of the movable traction wheel 5 on the copper pipe or copper wire is reflected by the pressure of the medium inside the lifting piston cylinder 25. A pressure detector is installed on the medium pipeline of the lifting piston cylinder 25 to monitor the pressure in real time and display the pressure on the display for easy control.

[0062] The fixed traction wheel 4 includes an outer wheel rim 33 and an inner wheel rim 34 fitted together. The inner wheel rim 34 is securely mounted on the rotating shaft 10. Several sliding pillars 35 are circumferentially spaced on the inner wheel rim 34. Abutment spring 36 is installed between the sliding pillars 35 and the inner wheel rim 34. Several positioning grooves 37 are circumferentially spaced on the inner wall of the outer wheel rim 33, with more positioning grooves 37 than sliding pillars 35. The two opposite sidewalls of the positioning grooves 37 are inclined. The ends of the sliding pillars 35 have a trapezoidal structure and are fitted into the positioning grooves 37. During the rotation of the fixed traction wheel 4, when encountering jamming, the friction between the outer wheel rim 33 and the pulled object increases, while the inner wheel rim 34 continues to rotate, causing the sliding pillars 35 to retract. The outer wheel rim 33 and the inner wheel 34 slip against each other, preventing excessive torque from damaging the motor. The sliding pillars 35 slide to the next positioning groove 37 and pop outwards. If the jamming disappears at this point, the outer wheel rim 33 and the inner wheel rim 34 continue to rotate synchronously. If the jamming persists, the slide bar 35 continues to retract, causing the outer wheel rim 33 and the inner wheel rim 34 to slip against each other. This structural design allows the outer wheel rim 33 and the inner wheel rim 34 to slip, preventing jamming from damaging the motor.

[0063] During the copper pipe or wire traction operation, first adjust the distance between the movable traction wheel 5 and the fixed traction wheel 4 by moving the mounting base 2 according to the thickness of the copper pipe or wire, clamping the copper pipe or wire between the movable traction wheel 5 and the fixed traction wheel 4. The movable traction wheel 5 and the fixed traction wheel 4 rotate, thereby pushing the copper pipe or wire forward to achieve traction. The buffer mechanism provides a buffering force to the movable traction wheel 5, allowing the traction distance 8 to buffer changes, thus avoiding jamming during the traction process and preventing damage to the copper pipe or wire.

[0064] Example 6: A traction device (see Figure 6 , Figure 7 , Figure 8 The device includes a base 1 and a mounting seat 2 that is movably mounted on the base 1. A support platform 3 is mounted on the bottom of the base 1, providing support for the entire device. The base 1 is connected to a fixed traction wheel 4, and the mounting seat 2 is connected to a movable traction wheel 5. An installation window 6 is provided on the base 1. The fixed traction wheel 4 is rotatably mounted at the lower position of the installation window 6, and the mounting seat 2 is raised and lowered to be mounted at the upper position of the installation window 6. The mounting seat 2 has an inverted U-shaped structure, and two opposing sliding grooves 7 are provided on the base 1. The two ends of the mounting seat 2 are slidably mounted in the two sliding grooves 7, which are located on the two opposite side walls of the installation window 6.

[0065] A movable traction wheel 5 is positioned above a fixed traction wheel 4, forming a traction gap 8 between them. A buffer mechanism is correspondingly installed on the movable traction wheel 5, providing a buffering force to mitigate changes in the traction gap 8. A traction motor 9, a geared motor, is mounted on the base 1 to drive the fixed traction wheel 4. The output shaft of the traction motor 9 is coaxially connected to the rotating shaft 10 on the fixed traction wheel 4, which is rotatably mounted on the base 1. The traction motor 9 drives the fixed traction wheel 4, providing stable and reliable traction force.

[0066] A lifting piston cylinder 25 is installed on the base 1, and the telescopic rod of the lifting piston cylinder 25 is connected to the mounting base 2. The lifting piston cylinder 25 is installed on the top of the base 1. The buffer mechanism includes a transverse slide 29 and a buffer spring 19. The transverse slide 29 is installed on the mounting base 2 and moves laterally back and forth. Buffer springs 19 are installed on both the front and rear sides of the transverse slide 29 and between the transverse slide 29 and the mounting base 2. A movable traction wheel 5 is installed on the transverse slide 29. A transverse groove 30 is provided on the mounting base 2, and the transverse slide 29 is slidably connected to the transverse groove 30. Two supports 31 are provided on both the front and rear sides of the mounting base 2. The supports 31 on the front and rear sides of the mounting base 2 are arranged opposite each other. A slide rod 32 is connected between the supports 31 on the front and rear sides of the mounting base 2. The slide rod 32 is inserted into the transverse slide 29. The buffer spring 19 is fitted onto the slide rod 32. Buffer springs 19 are installed between the front side of the transverse slide 29 and the supports 31, and between the rear side of the transverse slide 29 and the supports 31.

[0067] The mounting base 2 is moved by the lifting piston cylinder 25, ensuring stability and reliability. The movable traction wheel 5 moves laterally back and forth along with the transverse sliding block 29, causing the movable traction wheel 5 to deviate from the fixed traction wheel 4, thereby increasing the distance between the movable traction wheel 5 and the fixed traction wheel 4. This prevents jamming during traction and avoids damage to the copper pipe or copper wire.

[0068] The lifting piston cylinder 25 is a pneumatic or hydraulic cylinder. The clamping force of the movable traction wheel 5 on the copper pipe or copper wire is reflected by the pressure of the medium inside the lifting piston cylinder 25. A pressure detector is installed on the medium pipeline of the lifting piston cylinder 25 to monitor the pressure in real time and display the pressure on the display for easy control.

[0069] The fixed traction wheel 4 includes an outer wheel rim 33 and an inner wheel rim 34 fitted together. The inner wheel rim 34 is securely mounted on the rotating shaft 10. Several sliding pillars 35 are circumferentially spaced on the inner wheel rim 34. Abutment spring 36 is installed between the sliding pillars 35 and the inner wheel rim 34. Several positioning grooves 37 are circumferentially spaced on the inner wall of the outer wheel rim 33, with more positioning grooves 37 than sliding pillars 35. The two opposite sidewalls of the positioning grooves 37 are inclined. The ends of the sliding pillars 35 have a trapezoidal structure and are fitted into the positioning grooves 37. During the rotation of the fixed traction wheel 4, when encountering jamming, the friction between the outer wheel rim 33 and the pulled object increases, while the inner wheel rim 34 continues to rotate, causing the sliding pillars 35 to retract. The outer wheel rim 33 and the inner wheel 34 slip against each other, preventing excessive torque from damaging the motor. The sliding pillars 35 slide to the next positioning groove 37 and pop outwards. If the jamming disappears at this point, the outer wheel rim 33 and the inner wheel rim 34 continue to rotate synchronously. If the jamming persists, the slide bar 35 continues to retract, causing the outer wheel rim 33 and the inner wheel rim 34 to slip against each other. This structural design allows the outer wheel rim 33 and the inner wheel rim 34 to slip, preventing jamming from damaging the motor.

[0070] During the copper pipe or wire traction operation, first adjust the distance between the movable traction wheel 5 and the fixed traction wheel 4 by moving the mounting base 2 according to the thickness of the copper pipe or wire, clamping the copper pipe or wire between the movable traction wheel 5 and the fixed traction wheel 4. The movable traction wheel 5 and the fixed traction wheel 4 rotate, thereby pushing the copper pipe or wire forward to achieve traction. The buffer mechanism provides a buffering force to the movable traction wheel 5, allowing the traction distance 8 to buffer changes, thus avoiding jamming during the traction process and preventing damage to the copper pipe or wire.

[0071] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. A traction device, characterized in that, It includes a base and a mounting base that is movable on the base. The base is connected to a fixed traction wheel, and the mounting base is connected to a movable traction wheel. A traction gap is formed between the movable traction wheel and the fixed traction wheel. A buffer mechanism is provided for the movable traction wheel. The buffer mechanism provides a buffering force to the movable traction wheel so that the traction gap can be buffered to change.

2. The traction device according to claim 1, characterized in that, A lifting screw driven by a lifting motor is installed on the base, and the lifting screw is connected to the mounting base.

3. A traction device according to claim 2, characterized in that, A drive gear is installed on the output shaft of the lifting motor, and several lifting screws are spaced circumferentially. A driven gear is installed on the lifting screw, and the drive gear and the driven gear mesh to drive each other. A screw sleeve is installed on the machine base, and the lifting screw is threadedly connected to the screw sleeve.

4. A traction device according to claim 2, characterized in that, The buffer mechanism includes a buffer cylinder and a buffer spring. A lifting block that moves up and down is installed on the top of the buffer cylinder. The buffer spring is installed between the buffer cylinder and the lifting block. The lifting screw is rotatably connected to the lifting block. The buffer cylinder is fastened to the mounting base.

5. A traction device according to claim 1, characterized in that, A lifting piston cylinder is installed on the base, and the extension rod of the lifting piston cylinder is connected to the mounting base.

6. A traction device according to claim 5, characterized in that, The buffer mechanism includes a connecting seat and a buffer spring. The connecting seat is connected to the telescopic rod of the lifting piston cylinder. The telescopic rod of the lifting piston cylinder is connected to a limiting block. The connecting seat is fastened to the mounting seat. The limiting block and the buffer spring are placed between the connecting seat and the mounting seat, and the buffer spring abuts against the mounting seat and the limiting block.

7. A traction device according to claim 5, characterized in that, The buffer mechanism includes a transverse slide and buffer springs. The transverse slide is mounted on the mounting base and moves laterally back and forth. Buffer springs are installed on both sides of the transverse slide and between the mounting base. The movable traction wheel is mounted on the transverse slide.

8. A traction device according to claim 1, characterized in that, The base is provided with two opposing sliding grooves, and the two ends of the mounting base are slidably installed in the two sliding grooves respectively.

9. A traction device according to claim 1, characterized in that, A pressure sensor is installed between the buffer mechanism and the mounting base.

10. A traction device according to any one of claims 1 to 9, characterized in that, The fixed traction wheel includes an outer wheel rim and an inner wheel rim that are fitted together. Several sliding pins are arranged circumferentially on the inner wheel rim. Abutment spring is installed between the sliding pins and the inner wheel rim. Several positioning grooves are arranged circumferentially on the inner wall of the outer wheel rim. The two opposite side walls of the positioning grooves are inclined. The ends of the sliding pins are fitted into the positioning grooves.

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