Damage-proof PVC pipe pulling device

Abstract

The utility model discloses a kind of PVC pipeline traction devices of preventing injury, including chassis, two discs are provided on chassis, first support rod and second support rod are provided between two discs, first support rod and second support rod are mutually symmetrical parallel arrangement, the outside of first support rod is provided with electric telescopic rod, first conveying mechanism is provided on the telescopic shaft of electric telescopic rod, second conveying mechanism is slidably connected on second support rod, second conveying mechanism and first conveying mechanism are connected by synchronous relative mechanism between, in the utility model, through the cooperation of square shaft and two first bevel gears, and the meshing between the reverse arrangement of two first bevel gears and the two second bevel gears of corresponding position respectively, so that the synchronous relative rotation effect of two transmission rollers on first conveying mechanism and second conveying mechanism is generated, to realize the synchronous same direction conveying effect of first conveying mechanism and second conveying mechanism to PVC pipe material, effectively avoid the problem of pipe material surface damage due to speed difference.

Description

Technical Field

[0001] This utility model relates to the field of traction device technology, and in particular to a damage-resistant PVC pipe traction device. Background Technology

[0002] Application CN222116001U relates to the field of PVC pipe production technology and discloses a traction device for a PVC extruder, including four pillars. A fixed plate is fixedly connected to each of the four pillars, and a lifting column is slidably connected inside each of the four pillars. A mounting plate is fixedly connected to the upper end of each of the four lifting columns. This traction device for a PVC extruder activates multiple electric cylinders simultaneously during operation. Two electric cylinders located within the same connecting frame extend or retract, thereby changing the position of the fixed frame. Since the fixed frame is connected to the conveyor belt, this movement directly changes the position of the conveyor belt, further altering the spacing between the four conveyor belts. This allows it to be used with PVC pipes of different specifications, quickly adapting to PVC pipes of different diameters or wall thicknesses without replacing the entire traction device or making complex mechanical adjustments. This not only improves production efficiency but also reduces production and maintenance costs.

[0003] After searching, it was found that the existing technology has certain defects. The existing technology achieves the traction effect by cooperating with multiple transmission mechanisms, but the position adjustment and drive of each transmission mechanism need to be set independently, resulting in poor synchronization and speed difference, which can damage the surface of PVC pipes. In addition, the cost is high and it is not easy to maintain. Therefore, a damage-proof PVC pipe traction device is needed to meet people's needs. Summary of the Invention

[0004] The purpose of this invention is to provide a damage-resistant PVC pipe traction device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a damage-resistant PVC pipe traction device, comprising a base frame, on which two discs are mounted, and between the two discs are a first support rod and a second support rod, which are arranged symmetrically and parallel to each other. An electric telescopic rod is mounted on the outer side of the first support rod, and a first transmission mechanism is mounted on the telescopic shaft of the electric telescopic rod. A second transmission mechanism is slidably connected to the second support rod, and the second transmission mechanism is connected to the first transmission mechanism through a synchronous relative mechanism. A motor is mounted on the first support rod, and a square shaft is mounted on the output shaft of the motor. Two first bevel gears are axially slidably connected to the square shaft, and the two first bevel gears are arranged in opposite directions and symmetrically to each other. Both the first and second transmission mechanisms consist of a transmission frame, a transmission roller, a driven roller, and a transmission belt. A second bevel gear is connected to each of the two transmission rollers, and the two second bevel gears are arranged in the same direction and symmetrically to each other. Each second bevel gear meshes with a first bevel gear at a corresponding position.

[0006] Preferably, a guide rod is slidably connected inside the second support rod, the guide rod is axially symmetrical with the telescopic shaft of the electric telescopic rod, and the guide rod is connected to the second transmission mechanism.

[0007] Preferably, the synchronous relative mechanism includes a first rack, a second rack, and a gear. The first rack is connected to a first transmission mechanism, the second rack is connected to a second transmission mechanism, and the gear meshes between the first rack and the second rack and is rotatably connected to the disk.

[0008] Preferably, the disk is provided with a positioning shaft, and the center of the gear is rotatably connected to the outer wall of the positioning shaft.

[0009] Preferably, both the first and second conveying mechanisms are provided with positioning plates, and the two positioning plates are respectively arranged on the side of the two first bevel gears away from the second bevel gear.

[0010] Preferably, the positioning plate has a circular hole with the same diameter as the diagonal length of the square shaft, and the first bevel gear has a square hole, with the square shaft fitting inside the square hole.

[0011] The beneficial effects of this utility model are:

[0012] In this invention, the square shaft cooperates with two first bevel gears, and the two first bevel gears are arranged in opposite directions and mesh with two second bevel gears at corresponding positions, so that the two transmission rollers on the first and second transmission mechanisms produce a synchronous relative rotation effect. This achieves the synchronous and unidirectional transmission effect of PVC pipes by the first and second transmission mechanisms, effectively avoiding the problem of pipe surface damage caused by speed difference.

[0013] This invention achieves synchronous relative movement between the first and second transmission mechanisms by setting up a single electric telescopic rod, thereby enabling adaptive adjustment of the distance between the two transmission mechanisms according to the different outer diameters of the PVC pipes. Compared with the prior art, this effectively reduces costs and makes maintenance more convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a damage-resistant PVC pipe traction device proposed in this utility model;

[0015] Figure 2 This is a top sectional view of the PVC pipe traction device for preventing damage according to this utility model.

[0016] Figure 3 This is a schematic diagram of the square axis side cross-sectional structure of a PVC pipe traction device for preventing damage according to this utility model.

[0017] Figure 4 This utility model proposes a damage-resistant PVC pipe traction device. Figure 3 Enlarged structural diagram at point A in the middle;

[0018] Figure 5 This utility model proposes a damage-resistant PVC pipe traction device. Figure 3 Enlarged structural diagram at point B.

[0019] In the diagram: 1. Base frame; 2. Disc; 3. First support rod; 4. Second support rod; 5. Electric telescopic rod; 6. First conveying mechanism; 7. Second conveying mechanism; 8. Synchronous relative mechanism; 9. Motor; 10. Square shaft; 11. First bevel gear; 12. Conveyor frame; 13. Drive roller; 14. Driven roller; 15. Conveyor belt; 16. Second bevel gear; 17. Guide rod; 18. First rack; 19. Second rack; 20. Gear; 21. Positioning shaft; 22. Positioning plate; 23. Round hole; 24. Square hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-5A damage-resistant PVC pipe traction device includes a base frame 1, on which two discs 2 are mounted. A first support rod 3 and a second support rod 4 are positioned between the two discs 2. The first support rod 3 and the second support rod 4 are arranged symmetrically and parallel to each other. An electric telescopic rod 5 is mounted on the outer side of the first support rod 3. A first transmission mechanism 6 is mounted on the telescopic shaft of the electric telescopic rod 5. A second transmission mechanism 7 is slidably connected to the second support rod 4. The second transmission mechanism 7 and the first transmission mechanism 6 are connected by a synchronous relative mechanism 8. A motor 9 is mounted on the first support rod 3. A square shaft 10 is mounted on the output shaft of the motor 9. Two first bevel gears 11 are axially slidably connected to the square shaft 10. The two first bevel gears 11 are arranged in opposite directions and symmetrically to each other. Both the first transmission mechanism 6 and the second transmission mechanism 7 consist of a transmission frame 12, a transmission roller 13, a driven roller 14, and a transmission belt 15. A second bevel gear 16 is connected to each of the two transmission rollers 13. The two second bevel gears 16 are arranged in the same direction and symmetrically to each other. Each second bevel gear 16 meshes with a corresponding first bevel gear 11.

[0022] Through the cooperation of the square shaft 10 with the two first bevel gears 11, and the reverse arrangement of the two first bevel gears 11 and their meshing with the two corresponding second bevel gears 16, the power of the drive motor 9 is activated, causing the square shaft 10 to rotate axially. This causes the two first bevel gears 11 to rotate in the same direction, meshing with the corresponding second bevel gears 16. This causes the two second bevel gears 16 to drive the corresponding transmission rollers 13 to rotate. The two transmission rollers 13 on the first transmission mechanism 6 and the second transmission mechanism 7 rotate synchronously relative to each other, thus achieving synchronous and unidirectional transmission of PVC pipes by the first transmission mechanism 6 and the second transmission mechanism 7. This effectively avoids the problem of pipe surface damage caused by speed difference. Through the setting of the synchronous relative mechanism 8, the synchronous relative movement between the first transmission mechanism 6 and the second transmission mechanism 7 is achieved by a single electric telescopic rod 5. This allows for adaptive adjustment of the distance between the two transmission mechanisms according to the different outer diameters of the PVC pipes. Furthermore, the axial sliding effect of the two first bevel gears 11 on the square shaft 10 ensures the smooth movement of the first transmission mechanism 6 and the second transmission mechanism 7. Compared with the prior art, this effectively reduces costs and makes maintenance more convenient.

[0023] Specifically, in this embodiment, a guide rod 17 is slidably connected inside the second support rod 4. The guide rod 17 is axially symmetrical with the telescopic shaft of the electric telescopic rod 5. The guide rod 17 is connected to the second transmission mechanism 7, ensuring that the second transmission mechanism 7 and the first transmission mechanism 6 move in the same horizontal direction, while also ensuring the connection between the second transmission mechanism 7 and the second support rod 4.

[0024] Specifically, in this embodiment, the synchronous relative mechanism 8 includes a first rack 18, a second rack 19, and a gear 20. The first rack 18 is connected to the first transmission mechanism 6, the second rack 19 is connected to the second transmission mechanism 7, and the gear 20 meshes between the first rack 18 and the second rack 19 and is rotatably connected to the disk 2, thereby achieving the synchronous relative movement effect between the second transmission mechanism 7 and the first transmission mechanism 6.

[0025] Specifically, in this embodiment, a positioning shaft 21 is provided on the disk 2, and the center of the gear 20 is rotatably connected to the outer wall of the positioning shaft 21, providing a stable fulcrum for the rotation of the gear 20.

[0026] Specifically, in this embodiment, both the first conveying mechanism 6 and the second conveying mechanism 7 are provided with positioning plates 22. The two positioning plates 22 are respectively arranged on the side of the two first bevel gears 11 away from the second bevel gear 16, providing a limit for the first bevel gears 11, ensuring the meshing stability between the first bevel gears 11 and the second bevel gears 16, and preventing the first bevel gears 11 and the second bevel gears 16 from separating during the movement of the first conveying mechanism 6 and the second conveying mechanism 7.

[0027] Specifically, in this embodiment, the positioning plate 22 has a circular hole 23, the diameter of which is the same as the diagonal length of the square shaft 10. The first bevel gear 11 has a square hole 24, and the square shaft 10 is fitted into the square hole 24. The circular hole 23 provides space for the axial rotation of the square shaft 10 and also provides support for the square shaft 10. The square hole 24 facilitates the square shaft 10 to drive the first bevel gear 11 to rotate radially and also helps the first bevel gear 11 to slide axially on the square shaft 10.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A damage-resistant PVC pipe traction device, comprising a base frame (1), characterized in that: The base frame (1) is provided with two discs (2), and a first support rod (3) and a second support rod (4) are provided between the two discs (2). The first support rod (3) and the second support rod (4) are arranged symmetrically and parallel to each other. An electric telescopic rod (5) is provided on the outside of the first support rod (3). A first transmission mechanism (6) is provided on the telescopic shaft of the electric telescopic rod (5). A second transmission mechanism (7) is slidably connected to the second support rod (4). The second transmission mechanism (7) and the first transmission mechanism (6) are connected by a synchronous relative mechanism (8). A motor (9) is provided on the first support rod (3). (9) has a square shaft (10) on its output shaft. Two first bevel gears (11) are axially slidably connected on the square shaft (10). The two first bevel gears (11) are arranged in opposite directions and symmetrically to each other. The first conveying mechanism (6) and the second conveying mechanism (7) are both composed of a conveying frame (12), a transmission roller (13), a driven roller (14) and a conveyor belt (15). The two transmission rollers (13) are each connected to a second bevel gear (16). The two second bevel gears (16) are arranged in the same direction and symmetrically to each other. Each second bevel gear (16) meshes with the first bevel gear (11) at the corresponding position.

2. The PVC pipe traction device for preventing damage according to claim 1, characterized in that: The second support rod (4) is slidably connected to a guide rod (17). The guide rod (17) is axially symmetrical with the telescopic shaft of the electric telescopic rod (5). The guide rod (17) is connected to the second transmission mechanism (7).

3. The PVC pipe traction device for preventing damage according to claim 1, characterized in that: The synchronous relative mechanism (8) includes a first rack (18), a second rack (19) and a gear (20). The first rack (18) is connected to the first transmission mechanism (6), the second rack (19) is connected to the second transmission mechanism (7), and the gear (20) meshes between the first rack (18) and the second rack (19) and is rotatably connected to the disk (2).

4. The PVC pipe traction device for preventing damage according to claim 1, characterized in that: The disk (2) is provided with a positioning shaft (21), and the center of the gear (20) is rotatably connected to the outer wall of the positioning shaft (21).

5. A damage-resistant PVC pipe traction device according to claim 1, characterized in that: The first conveying mechanism (6) and the second conveying mechanism (7) are each provided with a positioning plate (22), and the two positioning plates (22) are respectively arranged on the side of the two first bevel gears (11) away from the second bevel gear (16).

6. A damage-resistant PVC pipe traction device according to claim 5, characterized in that: The positioning plate (22) has a circular hole (23) with the same diameter as the diagonal length of the square shaft (10). The first bevel gear (11) has a square hole (24) and the square shaft (10) is fitted into the square hole (24).

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