Traction device for aluminum alloy spiral welded pipe
By designing an aluminum alloy spiral welded pipe traction device including support cavity, clip and spring, the problems of high control and low conveying efficiency of the traction device in the prior art are solved, and a more efficient and stable conveying process is achieved.
Patent Information
- Application Number
- CN202421366448.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The existing aluminum alloy spiral welded pipe traction device is complicated when used in combination with the drive assembly and hydraulic system, which affects the conveying efficiency and is difficult to control, which can easily lead to wrong conveying direction.
Using a traction device including the base, slide rail, support cavity, clip, spring and drive assembly, the support cavity and clip design are used to achieve locking and sliding of aluminum alloy spiral welded pipes using friction, replacing the traditional hydraulic system .
The conveying efficiency of aluminum alloy spiral welded pipes is improved, the difficulty of traction control is reduced, and the accuracy and stability of the conveying direction are ensured.
Smart Images
Figure CN222475316U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aluminum alloy spiral welded pipe processing, in particular to a traction device for aluminum alloy spiral welded pipes. Background Art
[0002] Aluminum and aluminum alloy welding products are characterized by light weight, high strength, large size, high temperature resistance, corrosion resistance, and fatigue resistance, which makes them widely used in aviation, aerospace, automobile, machinery manufacturing, electric power, shipbuilding and chemical industries. At the same time, aluminum alloy has high specific strength, specific modulus, fracture toughness, fatigue strength and stable corrosion resistance, as well as good forming processability and good weldability. Therefore, it is becoming more and more irreplaceable in these fields. In particular, the application of aluminum alloy products has always been particularly extensive in the high-voltage power transmission and distribution industry and the oil transportation industry, mainly used in the manufacture of aluminum alloy casings for metal-enclosed transmission lines for insulating gas. In order to protect channels such as power transmission roads and oil transportation, aluminum alloy welding products are mainly welded pipes, which serve as the aluminum alloy casing of the channel to protect the channel.
[0003] According to the orientation of the weld, aluminum alloy welded pipes are divided into straight welded pipes and spiral welded pipes. Straight welded pipes are welded pipes obtained by first curling the aluminum alloy sheet into a tubular blank in a direction perpendicular to the width of the plate, and then welding the gap of the tubular blank through welding equipment. Threaded welded pipes are welded pipes made by curling the aluminum alloy sheet into a tubular blank at a specific spiral angle, and then welding the gap of the tubular blank. Compared with straight welded steel pipes, spiral welded steel pipes can use aluminum alloy sheets of the same width to produce pipes of various diameters, and the welding direction of the weld of the spiral welded pipe is not a simple vertical or parallel relationship. For this reason, spiral welded pipes exhibit stronger compressive and tensile properties, making aluminum alloy spiral welded pipes widely used in the construction of large-scale transportation pipelines.
[0004] In the production process of aluminum alloy spiral welded pipe, the traction device is an indispensable production device for aluminum alloy spiral welded pipe. The traction device provides power for the movement of aluminum alloy spiral welded pipe, drives the aluminum alloy spiral welded pipe to move, so as to facilitate the manufacture of aluminum alloy spiral. The traction device mainly includes a chuck and a drive component, a hydraulic system installed on the chuck, and the aluminum alloy spiral welded pipe is set in the chuck. The inner wall of the chuck is locked on the aluminum alloy spiral welded pipe by controlling the hydraulic system, and then the drive component is used to drive the chuck and the aluminum alloy spiral welded pipe locked in the chuck to be pulled and moved. Due to the limited movement stroke of the driving component, the driving component needs to drive the chuck to move back and forth. In order to ensure the continuous traction and transportation of the aluminum alloy spiral welded pipe, when the chuck moves toward the conveying direction of the aluminum alloy spiral welded pipe, the chuck is controlled by the hydraulic system to lock the aluminum alloy spiral welded pipe, thereby driving the aluminum alloy spiral welded pipe to be transported along the aluminum alloy spiral welded pipe; on the contrary, when the chuck moves in the direction opposite to the conveying direction of the aluminum alloy spiral welded pipe, it is necessary to control the hydraulic system to release the lock of the chuck to avoid driving the aluminum alloy spiral welded pipe to move in the direction opposite to the conveying direction of the aluminum alloy spiral welded pipe. For this reason, the traction device requires the driving component and the hydraulic system to cooperate to ensure the transportation of the aluminum alloy spiral welded pipe. However, the use of the driving component and the hydraulic system is very cumbersome, and the cooperation is too slow, which will affect the aluminum alloy spiral welded pipe, that is, if the hydraulic system is unlocked too early, it will affect the transportation efficiency; on the contrary, if the hydraulic system is unlocked too late, it will drive the aluminum alloy spiral welded pipe to move in the direction opposite to the conveying direction of the aluminum alloy spiral welded pipe. Therefore, there are shortcomings in the traction device of the aluminum alloy spiral welded pipe, and the traction device still needs to be improved. Summary of the invention
[0005] In view of the deficiencies in the prior art, the utility model provides a traction device for an aluminum alloy spiral welded pipe which improves the conveying efficiency and reduces the difficulty of traction control, so as to overcome the defects in the prior art.
[0006] The technical solution adopted by the utility model is: a traction device for an aluminum alloy spiral welded pipe, comprising a machine base, two slide rails are arranged above the machine base, a first support platform and a second support platform are arranged between the two slide rails, support cavities are opened on the first support platform and the second support platform, one side of the support cavity adopts a truncated cone-shaped cavity structure, the diameter of one end of the support cavity is not greater than the middle diameter of the support cavity, a plurality of clips are arranged in the support cavity, a tubular structure composed of the plurality of clips, the outer wall diameter of the clip gradually increases along one end of the clip toward the middle of the clip, one end of the clip is sleeved in one side of the support cavity, a pressure ring is arranged on one side of the clip, the pressure ring thread is sleeved on the other side of the support cavity, a spring is arranged between the pressure ring and the clip, the two sides of the spring are respectively in contact with the pressure ring and the other end of the clip, and a driving component for driving the first support platform and the second support platform to make a linear reciprocating motion is arranged on the machine base.
[0007] Preferably, the driving assembly includes a threaded rod rotatably arranged on one of the slide rails, a driving motor arranged on one side of the threaded rod, and a slide rod arranged on the other slide rail, the driving motor is connected to the machine base, a first threaded hole is opened on the first support platform, a second threaded hole is opened on the second support platform, the first threaded hole and the second threaded hole are respectively threadedly mounted on the threaded rod, the spiral directions of the first threaded hole and the second threaded hole are opposite, and the first support platform and the second support platform are both provided with a sleeve hole, which is mounted on the slide rod.
[0008] Preferably, support seats are respectively provided on both sides of the threaded rod, and fixed seats are respectively provided on both sides of the sliding rod. The fixed seat and the support seat are respectively installed on two sliding rails, the sliding rod is installed on the fixed seat, and a bearing is mounted on the support seat. The threaded rod is mounted in the bearing, and the outer ring of the bearing and the inner ring of the bearing are respectively installed on the support seat and the threaded rod.
[0009] Preferably, a reduction gear box is arranged between the threaded rod and the machine base, and two meshing gears are arranged in the reduction gear box. The two gears are respectively mounted on the threaded rod and the driving shaft of the driving motor. The driving motor is installed on the side of the reduction gear box away from the first support platform, and the reduction gear box is installed on the machine base.
[0010] Preferably, the two slide rails are tiltedly arranged on the machine base, and the distance between the two slide rails gradually increases in the direction away from the machine base, and the inner sides of the two slide rails are respectively in contact with the bottom of the first support platform and the bottom of the second support platform.
[0011] Preferably, an elastic ring is provided on the side of the clip close to the spring, and arc grooves are provided on the sides of several clips close to the spring, and the elastic rings are interference fit in the arc grooves, thereby clamping the several clips.
[0012] Preferably, a plurality of fixing blocks are provided on a side of the pressure ring away from the spring, the plurality of fixing blocks are evenly arranged on the side of the pressure ring, and the fixing blocks and the pressure ring are an integral structure.
[0013] Preferably, the inner wall diameter of one end of the clip is not larger than the diameter of one end of the support cavity, the taper of one side of the clip matches the taper of one side of the support cavity, and the center line of the support cavity opened on the first support platform and the center line of the support cavity opened on the second support platform are located on the same axis.
[0014] The beneficial effects of the utility model are as follows: first, the utility model limits the movement of a plurality of clips through the provided support cavity, and presses the clips on one side of the support cavity through the provided spring, so that when the aluminum alloy spiral welded pipe passes into the support cavity, the plurality of clips are respectively pressed on the side walls of the aluminum alloy spiral welded pipe, and if the movement direction of the aluminum alloy spiral welded pipe relative to the clip is that the spring is toward the clip, the friction between the clip and the aluminum alloy spiral welded pipe drives the plurality of clips to move away from the spring, and since one side of the support cavity is a truncated cone-shaped cavity structure, under the interference effect of the support cavity on the movement of the clip, the plurality of clips are squeezed toward the aluminum alloy spiral welded pipe, thereby increasing the friction between the plurality of clips and the aluminum alloy spiral welded pipe, so that the aluminum alloy spiral welded pipe is locked between the plurality of clips; conversely, the movement direction of the aluminum alloy spiral welded pipe relative to the clip is that the clip is toward the spring, driving the plurality of clips to move in the direction close to the spring, so as to reduce the friction between the plurality of clips and the aluminum alloy spiral welded pipe, so that the aluminum alloy spiral welded pipe can slide relative to the clip. It can be seen that the hydraulic system is replaced by the support cavity, a number of clips and a spring, which improves the conveying efficiency of the aluminum alloy spiral welded pipe and reduces the difficulty of traction control.
[0015] Secondly, the utility model drives the threaded rod to rotate through the drive motor provided, and through the first threaded hole provided on the first support platform and the second threaded hole provided on the second support platform, the threaded rod drives the first support platform and the second support platform to move in opposite directions, so as to facilitate the continuous pulling of the aluminum alloy spiral welded pipe to move, and the utility model limits the first support platform and the second support platform through the provided sliding rod and the sleeve holes provided on the first support platform and the second support platform to prevent the first support platform and the second support platform from shaking during the movement, thereby improving the traction stability. In addition, the utility model facilitates the support of the threaded rod and the sliding rod through the provided support seat and the fixed seat, so as to facilitate the threaded rod and the sliding rod to remain stable.
[0016] Thirdly, the utility model controls the speed and torque of the transmission between the threaded rod and the drive motor by means of two gears, and protects the transmission between the threaded rod and the drive motor by means of a reduction box to ensure the stability of the transmission. Moreover, the utility model uses an elastic ring to squeeze adjacent clips together, thereby limiting the position of several clips to prevent the clips from falling off. The utility model uses several fixed blocks to facilitate the rotation of the pressure ring, so as to facilitate the removal of the spring and several clips from the support cavity, thereby facilitating the cleaning, maintenance and replacement of the spring and several clips. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model.
[0018] Figure 2It is a cutaway stereogram of the utility model.
[0019] Figure 3 for Figure 2 A magnified schematic diagram of center A.
[0020] Figure 4 It is a schematic diagram of the assembly of the second support platform, the clip, the elastic ring, the spring and the pressure ring in the utility model.
[0021] Figure 5 This is a schematic diagram of the installation of the threaded rod and the drive motor in the utility model. DETAILED DESCRIPTION
[0022] like Figures 1 to 5As shown, a traction device for an aluminum alloy spiral welded pipe comprises a machine base 1, wherein two slide rails 2 are arranged above the machine base 1, a first support platform 3 and a second support platform 4 are arranged between the two slide rails 2, a support cavity 5 is opened on the first support platform 3 and the second support platform 4, one side of the support cavity 5 adopts a truncated cone-shaped cavity structure, the diameter of one end of the support cavity 5 is not greater than the middle diameter of the support cavity 5, a plurality of clips 6 are arranged in the support cavity 5, a tubular structure composed of the plurality of clips 6, the outer wall diameter of the clip 6 gradually increases along one end of the clip 6 toward the middle of the clip 6, one end of the clip 6 is sleeved in one side of the support cavity 5, a pressure ring 7 is arranged on one side of the clip 6, the pressure ring 7 is threadedly sleeved on the other side of the support cavity 5, a spring 8 is arranged between the pressure ring 7 and the clip 6, the two sides of the spring 8 are respectively in contact with the pressure ring 7 and the clip 6, and a driving component for driving the first support platform 3 and the second support platform 4 to make a linear reciprocating motion is arranged on the machine base 1. When the aluminum alloy spiral welded pipe passes into the supporting cavity 5, the spring 8 squeezes the plurality of clips 6 so that the clips 6 are pressed against the side wall of the aluminum alloy spiral welded pipe. If the movement direction of the aluminum alloy spiral welded pipe relative to the clip 6 is that the clip 6 is toward the spring 8, the friction between the clip 6 and the aluminum alloy spiral welded pipe drives the plurality of clips 6 to move toward the direction close to the spring 8; conversely, if the movement direction of the aluminum alloy spiral welded pipe relative to the clip 6 is that the spring 8 is toward the clip 6, the friction between the clip 6 and the aluminum alloy spiral welded pipe drives the plurality of clips 6 to move away from the spring 8. Since one side of the supporting cavity 5 is a truncated cone-shaped cavity structure, the friction between the clip 6 and the aluminum alloy spiral welded pipe is increased under the interference effect of the supporting cavity 5 on the movement of the clip 6, thereby locking the aluminum alloy spiral welded pipe between the plurality of clips 6. It can be seen that when the movement direction of the aluminum alloy spiral welded pipe relative to the clip 6 is that the spring 8 is toward the clip 6, the friction between the aluminum alloy spiral welded pipe and the clip 6 is small, and the aluminum alloy spiral welded pipe can slide between several clips 6; on the contrary, when the movement direction of the aluminum alloy spiral welded pipe relative to the clip 6 is that the clip 6 is toward the spring 8, the friction between the aluminum alloy spiral welded pipe and the clip 6 is large, and the aluminum alloy spiral welded pipe will be locked between several clips 6. Using the scheme provided in this embodiment, it is convenient to use several clips 6 to pull the aluminum alloy spiral welded pipe to move in a single direction.
[0023] In this embodiment, the driving assembly includes a threaded rod 9 rotatably arranged on one of the slide rails 2, a driving motor 10 arranged on one side of the threaded rod 9, and a slide rod 11 arranged on the other slide rail 2. The driving motor 10 is connected to the machine base 1. A first threaded hole 12 is opened on the first support platform 3, and a second threaded hole 13 is opened on the second support platform 4. The first threaded hole 12 and the second threaded hole 13 are respectively threadedly mounted on the threaded rod 9. The spiral directions of the first threaded hole 12 and the second threaded hole 13 are opposite. To this end, in the process of controlling the rotation of the threaded rod 9, the first support platform 3 and the second support platform 4 are driven to move in opposite directions, so that several clips 6 in the first support platform 3 and the second support platform 4 alternately pull the aluminum alloy spiral welded pipe to move in a single direction. The first support platform 3 and the second support platform 4 are both provided with a sleeve hole 14, and the sleeve hole 14 is mounted on the slide rod 11 to limit the first support platform 3 and the second support platform 4 to prevent shaking during the movement of the first support platform 3 and the second support platform 4, thereby improving the stability of traction.
[0024] Specifically, support seats 15 are respectively provided on both sides of the threaded rod 9, and fixed seats 16 are respectively provided on both sides of the sliding rod 11. The fixed seats 16 and the support seats 15 are respectively installed on the two sliding rails 2, and the sliding rod 11 is installed on the fixed seats 16. A bearing is mounted on the support seat 15, and the threaded rod 9 is mounted in the bearing. The outer ring of the bearing and the inner ring of the bearing are respectively installed on the support seat 15 and the threaded rod 9, so as to support the threaded rod 9 and the sliding rod 11.
[0025] Please refer again Figure 1 , 2 and 5. A reduction gear box 17 is arranged between the threaded rod 9 and the machine base 1. Two meshing gears 18 are arranged in the reduction gear box 17. The two gears 18 are respectively mounted on the threaded rod 9 and the driving shaft of the driving motor 10. The driving motor 10 is installed on the side of the reduction gear box 17 away from the first support platform 3. The reduction gear box 17 is installed on the machine base 1. The transmission between the threaded rod 9 and the driving motor 10 is transmitted through the two gears 18. By controlling the transmission ratio between the two gears 18, the speed and torque of the transmission between the threaded rod 9 and the driving motor 10 can be conveniently adjusted. The transmission between the threaded rod 9 and the driving motor 10 is protected by the reduction gear box 17 to ensure the stability of the transmission.
[0026] In this embodiment, the two slide rails 2 are obliquely arranged on the machine base 1, and the distance between the two slide rails 2 gradually increases in the direction away from the machine base 1. The inner sides of the two slide rails 2 are respectively in contact with the bottom of the first support platform 3 and the bottom of the second support platform 4. The two slide rails 2 form a V-shaped structure, so that during the sliding process of the first support platform 3 and the second support platform 4, the two slide rails 2 can continue to support the first support platform 3 and the second support platform 4, so as to facilitate the use of the first support platform 3 and the second support platform 4 for traction operations.
[0027] Please refer again Figure 3 and 4 The side of the clip 6 close to the spring 8 is provided with an elastic ring 19, and the sides of several clips 6 close to the spring 8 are provided with arc grooves 20. The elastic ring 19 is interference fit in the arc groove 20, thereby clamping the several clips 6. For this reason, when the aluminum alloy spiral welded pipe is not set in the support cavity 5, the adjacent clips 6 are fitted together under the extrusion of the elastic ring 19, thereby limiting the several clips 6 to prevent the clips 6 from falling off.
[0028] Specifically, a plurality of fixing blocks 21 are provided on the side of the pressure ring 7 away from the spring 8. The fixing blocks 21 are evenly arranged on the side of the pressure ring 7. The fixing blocks 21 are an integral structure with the pressure ring 7. By twisting the fixing blocks 21, the pressure ring 7 is driven to rotate, so as to facilitate the removal of the spring 8 and the plurality of clips 6 from the support cavity 5, thereby facilitating the cleaning, maintenance and replacement of the spring 8 and the plurality of clips 6.
[0029] In this embodiment, the inner wall diameter of one end of the clamp 6 is not larger than the diameter of one end of the support cavity 5, so that the clamp and the side wall of the aluminum alloy spiral welded pipe can contact each other, and the taper of one side of the clamp 6 matches the taper of one side of the support cavity 5, so that one side of the clamp 6 can fit on the support cavity 5. The center line of the support cavity 5 opened on the first support platform 3 and the center line of the support cavity 5 opened on the second support platform 4 are located on the same axis to avoid shaking of the aluminum alloy spiral welded pipe when the first support platform 3 and the second support platform 4 alternately pull the aluminum alloy spiral welded pipe, so as to improve the stability of pulling the aluminum alloy spiral welded pipe.
[0030] The method of using this product is as follows: Figures 1 to 5 As shown, first, check whether the power supply of the drive motor 10 is connected normally. According to the processing requirements of the aluminum alloy spiral welded pipe, set the speed of the drive motor 10 to control the pulling speed of the aluminum alloy spiral welded pipe, and pass one end of the aluminum alloy spiral welded pipe into the support cavity 5 opened by the first support platform 3 and the second support platform 4 respectively. Then, start the drive motor 10, and drive the threaded rod 9 to rotate through the two gears 18. Since the spiral directions of the first threaded hole 12 and the second threaded hole 13 are opposite, the first support platform 3 and the second support platform 4 are driven to move in opposite directions, so that the first support platform 3 and the second support platform 4 The multiple clips 6 alternately pull the aluminum alloy spiral welded pipe to move in a single direction to continuously pull the aluminum alloy spiral welded pipe to move. In addition, during the operation of the drive motor 10, observe the processing of the aluminum alloy spiral welded pipe, and adjust the speed of the drive motor 10 appropriately according to the processing conditions to meet the needs of continuous processing of the aluminum alloy spiral welded pipe.
[0031] In addition, in order to control the alternation of several clips 6 in the first support platform 3 and the second support platform 4, the drive motor 10 should be able to switch between forward rotation and reverse rotation or a steering control mechanism should be installed between the threaded rod 9 and the drive motor 10. The switching between forward rotation and reverse rotation of the drive motor 10 can be controlled by switching the current direction. The steering control mechanism installed between the threaded rod 9 and the drive motor 10 is a common mechanical component. Both are commonly used steering schemes, so they are not listed in this embodiment.
[0032] In this embodiment, the movement of the plurality of clips 6 is restricted by the support cavity 5, and the clips 6 are pressed on one side of the support cavity 5 by the spring 8. Therefore, when the aluminum alloy spiral welded pipe passes into the support cavity 5, the plurality of clips 6 are respectively pressed on the side wall of the aluminum alloy spiral welded pipe. If the movement direction of the aluminum alloy spiral welded pipe relative to the clip 6 is that the spring 8 is toward the clip 6, the friction between the clip 6 and the aluminum alloy spiral welded pipe drives the plurality of clips 6 to move away from the spring 8. Since one side of the support cavity 5 is a truncated cone-shaped cavity structure In the structure, under the interference of the support cavity 5 on the movement of the clips 6, several clips 6 are squeezed toward the aluminum alloy spiral welded pipe, thereby increasing the friction between the several clips 6 and the aluminum alloy spiral welded pipe, so that the aluminum alloy spiral welded pipe is locked between the several clips 6; on the contrary, the movement direction of the aluminum alloy spiral welded pipe relative to the clips 6 is the clips 6 toward the spring 8, driving the several clips 6 to move toward the direction close to the spring 8, so as to reduce the friction between the several clips 6 and the aluminum alloy spiral welded pipe, so that the aluminum alloy spiral welded pipe can slide relative to the clips 6. It can be seen that the hydraulic system is replaced by the support cavity 5, the several clips 6 and the spring 8, which improves the transportation efficiency of the aluminum alloy spiral welded pipe and reduces the difficulty of traction control.
[0033] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.
Claims
1. A traction device for an aluminum alloy spiral welded pipe, comprising a machine base (1), characterized in that: Two slide rails (2) are arranged above the machine base (1), a first support platform (3) and a second support platform (4) are arranged between the two slide rails (2), a support cavity (5) is provided on the first support platform (3) and the second support platform (4), one side of the support cavity (5) adopts a truncated cone-shaped cavity structure, the diameter of one end of the support cavity (5) is not greater than the middle diameter of the support cavity (5), a plurality of clips (6) are arranged in the support cavity (5), the plurality of clips (6) form a tubular structure, the outer wall diameter of the clip (6) is along the clip ( One end of the clamp (6) gradually becomes larger toward the middle of the clamp (6), one end of the clamp (6) is sleeved in one side of the support cavity (5), a pressure ring (7) is provided on one side of the clamp (6), the pressure ring (7) is threadedly sleeved on the other side of the support cavity (5), a spring (8) is provided between the pressure ring (7) and the clamp (6), the two sides of the spring (8) are respectively in contact with the pressure ring (7) and the other end of the clamp (6), and a driving component is provided on the machine base (1) for driving the first support platform (3) and the second support platform (4) to perform linear reciprocating motion.
2. The traction device for the aluminum alloy spiral welded pipe according to claim 1 is characterized in that: The driving assembly comprises a threaded rod (9) rotatably arranged on one of the slide rails (2), a driving motor (10) arranged on one side of the threaded rod (9), and a slide rod (11) arranged on the other slide rail (2); the driving motor (10) is connected to the machine base (1); a first threaded hole (12) is provided on the first support platform (3); a second threaded hole (13) is provided on the second support platform (4); the first threaded hole (12) and the second threaded hole (13) are respectively threadedly mounted on the threaded rod (9); the spiral directions of the first threaded hole (12) and the second threaded hole (13) are opposite; the first support platform (3) and the second support platform (4) are both provided with a sleeve hole (14); and the sleeve hole (14) is sleeved on the slide rod (11).
3. The traction device for the aluminum alloy spiral welded pipe according to claim 2 is characterized in that: Support seats (15) are respectively arranged on both sides of the threaded rod (9), and fixed seats (16) are respectively arranged on both sides of the slide rod (11). The fixed seats (16) and the support seats (15) are respectively mounted on the two slide rails (2). The slide rod (11) is mounted on the fixed seats (16). A bearing is sleeved on the support seat (15), and the threaded rod (9) is sleeved in the bearing. The outer ring of the bearing and the inner ring of the bearing are respectively mounted on the support seat (15) and the threaded rod (9).
4. The traction device for the aluminum alloy spiral welded pipe according to claim 2 is characterized in that: A reduction box (17) is arranged between the threaded rod (9) and the machine base (1), and two meshing gears (18) are arranged in the reduction box (17). The two gears (18) are respectively mounted on the threaded rod (9) and the drive shaft of the drive motor (10). The drive motor (10) is mounted on a side of the reduction box (17) away from the first support platform (3), and the reduction box (17) is mounted on the machine base (1).
5. The traction device for the aluminum alloy spiral welded pipe according to claim 1, characterized in that: The two slide rails (2) are arranged obliquely on the machine base (1), and the distance between the two slide rails (2) gradually increases in the direction away from the machine base (1). The inner side surfaces of the two slide rails (2) are respectively in contact with the bottom of the first support platform (3) and the bottom of the second support platform (4).
6. The traction device for the aluminum alloy spiral welded pipe according to claim 1, characterized in that: The side of the clip (6) close to the spring (8) is provided with an elastic ring (19), and the sides of the plurality of clips (6) close to the spring (8) are provided with arc grooves (20), and the elastic ring (19) is interference fit in the arc groove (20), thereby clamping the plurality of clips (6).
7. The traction device for the aluminum alloy spiral welded pipe according to claim 1, characterized in that: A plurality of fixing blocks (21) are provided on a side of the pressure ring (7) away from the spring (8); the fixing blocks (21) are evenly arranged on the side of the pressure ring (7); and the fixing blocks (21) and the pressure ring (7) are an integral structure.
8. The traction device for the aluminum alloy spiral welded pipe according to claim 1, characterized in that: The inner wall diameter of one end of the clip (6) is not greater than the diameter of one end of the support cavity (5), the taper of one side of the clip (6) matches the taper of one side of the support cavity (5), and the center line of the support cavity (5) opened on the first support platform (3) and the center line of the support cavity (5) opened on the second support platform (4) are located on the same axis.