Adjustable rear pneumatic rim device

Abstract

This utility model relates to the field of tire manufacturing technology and proposes an adjustable rear tire rim device. It includes a frame mounted on the ground, and an upper rim assembly and a lower rim assembly mounted on the frame. The upper and lower rim assemblies are arranged correspondingly and are used to fix the tire. The lower rim assembly includes a telescopic cylinder mounted on the frame and a drive unit mounted on the frame to drive the telescopic cylinder. A lower rim base is also provided on the telescopic end of the telescopic cylinder. After the telescopic cylinder extends or retracts, it drives the lower rim base to lift the tire. The upper rim assembly includes an upper rim base threaded onto the frame. The upper rim base abuts against the tire. After the upper rim base rotates threadedly on the frame, it adjusts the distance between the upper and lower rim bases. This solves the problem in the prior art where different tire rim models cannot guarantee stable pressure.

Description

Technical Field

[0001] This utility model relates to the field of tire manufacturing technology, specifically to an adjustable device for the rear pneumatic rim of a tire. Background Technology

[0002] During the tire manufacturing process, after the tire is vulcanized and demolded, the temperature is high and the tire has high plasticity, making it easy to deform and affecting the product quality. It is required that the tire be inflated, cooled and shaped after demolding. Because the previous rear inflator could only adjust the rim position by cylinder, the cylinder pressure was fixed. Different tire rims could not guarantee stable pressure and could only be used for one specification. The production of tires involves multiple specifications and models, which could not guarantee the inflation needs. Utility Model Content

[0003] This invention proposes an adjustable device for the rear inflatable tire rim, which solves the problem in the prior art that different tire rim models cannot guarantee stable pressure.

[0004] The technical solution of this utility model is as follows:

[0005] The rear tire inflation rim adjustable device includes a frame for mounting on the ground, and an upper rim assembly and a lower rim assembly mounted on the frame. The upper and lower rim assemblies are arranged correspondingly and are used to fix the tire. The lower rim assembly includes a telescopic cylinder mounted on the frame and a drive unit mounted on the frame for driving the telescopic cylinder. The telescopic cylinder has a lower rim base on its telescopic end. After the telescopic cylinder extends and retracts, it drives the lower rim base to lift the tire. The upper rim assembly includes an upper rim base threaded on the frame. The upper rim base abuts against the tire. After the upper rim base rotates threadedly on the frame, it is used to adjust the distance between the upper rim base and the lower rim base.

[0006] As a further technical solution, both the upper rim assembly and the lower rim assembly have two sets, which are respectively arranged on the frame.

[0007] As a further technical solution, the upper rim assembly also includes a slide rail mounted on the frame, with the upper rim base slidably mounted on the slide rail.

[0008] As a further technical solution, a limit block is set on the slide rail, and the upper wheel rim base is arranged concentrically with the lower wheel rim base after it abuts against the limit block.

[0009] As a further technical solution, the upper rim assembly also includes a mounting base with a sliding groove. The mounting base is slidably mounted on a slide rail via the sliding groove. The mounting base has a mounting cavity, in which a first gear is rotatably mounted. The mounting base also has a clearance groove for avoiding the rotation of the first gear. The assembly also includes a drive motor mounted on the mounting base. The drive end of the drive motor has a second gear. The second gear meshes with the first gear via the clearance groove. The first gear has a threaded hole, and the upper rim base is threaded into the threaded hole. After the second gear rotates, it drives the upper rim base to move within the mounting cavity.

[0010] As a further technical solution, the drive unit includes a hydraulic cylinder mounted on the frame, a first hydraulic line, one end of which is connected to the hydraulic cylinder and the other end of which is connected to a telescopic cylinder, and a second hydraulic line, one end of which is connected to the first hydraulic line and the other end of which is connected to another telescopic cylinder.

[0011] A first control valve is installed between the two telescopic cylinders on the first hydraulic pipeline, and a second control valve is installed between the telescopic cylinder and the hydraulic cylinder near the hydraulic cylinder on the first hydraulic pipeline.

[0012] As a further technical solution, the frame includes two columns and a first crossbeam and a second crossbeam disposed between the two columns, with the upper rim assembly located on the first crossbeam and the lower rim assembly located on the second crossbeam.

[0013] As a further technical solution, the bottom of the column has a mounting plate with mounting holes, and also includes a screw for passing through the mounting holes. After the screw passes through the mounting holes, it is used to fix the mounting plate to the ground.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] In this invention, during tire manufacturing, the temperature is high after the tire is vulcanized and demolded, resulting in high plasticity and easy deformation, which affects the product quality of the tire. Therefore, it is necessary to perform inflation, cooling, and shaping treatment after the tire is demolded. However, traditional rear-inflation devices usually rely solely on cylinders to adjust the rim position, and the cylinder pressure is fixed, making it difficult to adapt to the inflation requirements of different tire rim models. Since tire manufacturing involves various specifications and models, this fixed-pressure rear-inflation device cannot meet diverse inflation requirements, leading to limited production efficiency and difficulty in guaranteeing product quality. To solve this problem, this invention proposes a tire rear-inflation rim adjustable device. The device includes a frame installed on the ground, and an upper rim assembly and a lower rim assembly mounted on the frame. The upper and lower rim assemblies are arranged correspondingly to fix the tire. The lower rim assembly includes a telescopic cylinder mounted on the frame and a drive unit that drives the telescopic cylinder. The telescopic end of the telescopic cylinder is provided with a lower rim base. Through the telescopic movement of the telescopic cylinder, the lower rim base can be driven to lift the tire. The upper rim assembly includes an upper rim base threaded onto the frame. By rotating the upper rim base on the frame, the distance between the upper rim base and the lower rim base can be flexibly adjusted to adapt to the inflation requirements of tires of different specifications. This ensures that the tire remains stable during inflation, cooling and shaping after demolding, thereby improving product quality and production efficiency. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the first-view axial structure of this utility model;

[0018] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A;

[0019] Figure 3 for Figure 1 A magnified schematic diagram of the structure at point B;

[0020] Figure 4 This is a schematic diagram of the axial view of the first crossbeam.

[0021] In the diagram: 1. Frame, 2. Upper rim assembly, 3. Lower rim assembly, 4. Telescopic cylinder, 5. Drive unit, 6. Lower rim base, 7. Upper rim base, 8. Slide rail, 9. Limit block, 10. Mounting seat, 11. Slide groove, 12. Mounting cavity, 13. First gear, 14. Clearance groove, 15. Drive motor, 16. Second gear, 17. Threaded hole, 18. Hydraulic cylinder, 19. First hydraulic line, 20. Second hydraulic line, 21. First control valve, 22. Second control valve, 23. Column, 24. First crossbeam, 25. Second crossbeam, 26. Mounting plate, 27. Mounting hole, 28. Screw. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0023] Example

[0024] like Figures 1-4 As shown, the adjustable rear tire rim device includes a frame 1 for mounting on the ground, and an upper rim assembly 2 and a lower rim assembly 3 mounted on the frame 1. The upper rim assembly 2 and the lower rim assembly 3 are arranged correspondingly and are used to fix the tire. The lower rim assembly 3 includes a telescopic cylinder 4 mounted on the frame 1 and a drive unit 5 mounted on the frame 1 for driving the telescopic cylinder 4. The telescopic end of the telescopic cylinder 4 is also provided with a lower rim base 6. After the telescopic cylinder 4 extends and retracts, it drives the lower rim base 6 to lift the tire. The upper rim assembly 2 includes an upper rim base 7 threaded on the frame 1. The upper rim base 7 is used to abut the tire. After the upper rim base 7 rotates threadedly on the frame 1, it is used to adjust the distance between the upper rim base 7 and the lower rim base 6.

[0025] In this embodiment, during tire manufacturing, the tire reaches a high temperature after vulcanization and demolding, resulting in high plasticity and a tendency to deform, thus affecting tire product quality. Therefore, inflation, cooling, and shaping treatments are necessary after demolding. However, traditional rear-inflation devices typically rely solely on cylinders to adjust the rim position, and the cylinder pressure is fixed, making it difficult to adapt to the inflation requirements of different tire rim models. Since tire manufacturing involves various specifications and models, this fixed-pressure rear-inflation device cannot meet diverse inflation requirements, leading to limited production efficiency and difficulty in guaranteeing product quality. To solve this problem, this invention proposes a rear-inflation rim adjustable device. This device includes a frame 1 mounted on the ground, and an upper rim assembly 2 and a lower rim assembly 3 mounted on the frame 1. The upper rim assembly 2 and lower rim assembly 3 are arranged correspondingly to fix the tire. The lower rim assembly 3 includes a telescopic cylinder 4 mounted on the frame 1 and a drive unit 5 for driving the telescopic cylinder 4. A lower rim base 6 is located on the telescopic end of the telescopic cylinder 4. The telescopic movement of the telescopic cylinder 4 can lift the tire by driving the lower rim base 6. The upper rim assembly 2 includes an upper rim base 7 threaded onto the frame 1. By rotating the upper rim base 7 threaded onto the frame 1, the distance between the upper rim base 7 and the lower rim base 6 can be flexibly adjusted to accommodate the inflation requirements of tires of different specifications. This ensures the tire remains stable during inflation, cooling, and shaping after demolding, improving product quality and production efficiency.

[0026] Furthermore, both the upper rim assembly 2 and the lower rim assembly 3 have two sets, which are respectively arranged on the frame 1.

[0027] In this embodiment, the upper rim assembly 2 and the lower rim assembly 3 are both set into two groups, respectively arranged on both sides of the frame 1, which can simultaneously perform inflation, cooling and shaping operations on two tires, further improving production efficiency while ensuring the inflation requirements of tires of different specifications.

[0028] Furthermore, the upper rim assembly 2 also includes a slide rail 8 mounted on the frame 1, and the upper rim base 7 is slidably mounted on the slide rail 8.

[0029] In this embodiment, the upper rim assembly 2 also includes a slide rail 8 mounted on the frame 1. The upper rim base 7 is mounted on the slide rail 8 via a sliding device and can move smoothly along the slide rail 8. This allows the upper rim assembly 2 and the lower rim assembly 3 to be misaligned during maintenance, thereby increasing the maintenance space and further improving the adaptability and operational stability of the device.

[0030] Furthermore, a limit block 9 is provided on the slide rail 8, and the upper wheel rim base 7 is arranged concentrically with the lower wheel rim base 6 after it abuts against the limit block 9.

[0031] In this embodiment, a limiting block 9 is provided on the slide rail 8. When the upper wheel rim base 7 abuts against the limiting block 9, it can ensure that the upper wheel rim base 7 and the lower wheel rim base 6 are in a concentric arrangement, thereby ensuring that the tire is subjected to uniform force during the inflation, cooling and shaping process, and further improving the quality and consistency of the tire.

[0032] Furthermore, the upper rim assembly 2 also includes a mounting base 10, which has a sliding groove 11. The mounting base 10 is slidably mounted on the slide rail 8 via the sliding groove 11. The mounting base 10 has a mounting cavity 12, in which a first gear 13 is rotatably mounted. The mounting base 10 also has a clearance groove 14 for avoiding the rotation of the first gear 13. The assembly also includes a drive motor 15 mounted on the mounting base 10. The drive end of the drive motor 15 is provided with a second gear 16. The second gear 16 meshes with the first gear 13 via the clearance groove 14. The first gear 13 has a threaded hole 17, in which the upper rim base 7 is threadedly mounted. After the second gear 16 rotates, it drives the upper rim base 7 to move within the mounting cavity 12.

[0033] In this embodiment, the upper rim assembly 2 further includes a mounting base 10, which has a sliding groove 11 and is slidably mounted on the slide rail 8 of the frame 1 via the sliding groove 11. The mounting base 10 has a mounting cavity 12 inside, within which a first gear 13 is rotatably mounted. The mounting base 10 also has a clearance groove 14 to allow the first gear 13 to rotate. Furthermore, a drive motor 15 is mounted on the mounting base 10. A second gear 16 is mounted on the drive end of the drive motor 15, and the second gear 16 meshes with the first gear 13 via the clearance groove 14. The first gear 13 has a threaded hole 17 at its center, and the upper rim base 7 is threadedly mounted in this threaded hole 17. When the drive motor 15 operates, the second gear 16 rotates and, through meshing, drives the first gear 13 to rotate. Since the first gear 13 is threadedly connected to the upper rim base 7, the upper rim base 7 will move along the thread direction within the mounting cavity 12. In this way, the distance between the upper rim base 7 and the lower rim base 6 can be precisely adjusted to adapt to the inflation requirements of tires of different specifications, ensuring that the tires remain stable during inflation, cooling and shaping processes, and further improving tire product quality and production efficiency.

[0034] Furthermore, the drive unit 5 includes a hydraulic cylinder 18 mounted on the frame 1, a first hydraulic line 19, one end of which is connected to the hydraulic cylinder 18 and the other end of which is connected to a telescopic cylinder 4, and a second hydraulic line 20, one end of which is connected to the first hydraulic line 19 and the other end of which is connected to another telescopic cylinder 4.

[0035] A first control valve 21 is provided between the two telescopic cylinders 4 on the first hydraulic line 19, and a second control valve 22 is provided between the telescopic cylinder 4 and the hydraulic cylinder 18 on the first hydraulic line 19.

[0036] In this embodiment, the drive unit 5 uses a hydraulic system to achieve precise control of the telescopic cylinder 4, adapting to the inflation requirements of tires of different sizes. Specifically, the drive unit 5 includes a hydraulic cylinder 18 mounted on the frame 1, and a first hydraulic line 19 and a second hydraulic line 20 connected to the hydraulic cylinder 18. One end of the first hydraulic line 19 is connected to the hydraulic cylinder 18, and the other end is connected to a telescopic cylinder 4; one end of the second hydraulic line 20 is connected to the first hydraulic line 19, and the other end is connected to another telescopic cylinder 4. Through this connection method of hydraulic lines, the two telescopic cylinders 4 can be driven simultaneously or separately by the hydraulic cylinder 18 to achieve coordinated or independent actions.

[0037] To achieve precise control over the movement of the telescopic cylinders 4, a first control valve 21 is installed between the two telescopic cylinders 4 on the first hydraulic line 19, and a second control valve 22 is installed between the telescopic cylinder 4 closest to the hydraulic cylinder 18 and the hydraulic cylinder 18 on the first hydraulic line 19. These two control valves allow for the adjustment of the flow rate and pressure of hydraulic oil to the two telescopic cylinders 4, thereby achieving precise control over the telescopic speed and distance of the telescopic cylinders 4.

[0038] Furthermore, the frame 1 includes two columns 23 and a first crossbeam 24 and a second crossbeam 25 disposed between the two columns 23. The upper rim assembly 2 is located on the first crossbeam 24, and the lower rim assembly 3 is located on the second crossbeam 25.

[0039] In this embodiment, the frame 1 includes two vertically arranged columns 23, and a first crossbeam 24 and a second crossbeam 25 respectively connected between the two columns 23. The first crossbeam 24 and the second crossbeam 25 are arranged in parallel and are used to install the upper rim assembly 2 and the lower rim assembly 3, respectively. Specifically, the upper rim assembly 2 is installed on the first crossbeam 24 and its position is adjusted by a slide rail 8 and a drive device; the lower rim assembly 3 is installed on the second crossbeam 25 and includes a telescopic cylinder 4 and a lower rim base 6. The telescopic cylinder 4 is controlled by a hydraulic drive unit 5 to extend and retract, thereby driving the lower rim base 6 to lift the tire. This frame 1 structural design not only provides stable support for the upper rim assembly 2 and the lower rim assembly 3, but also makes the layout of the entire device more reasonable through layered arrangement, facilitating operation and maintenance, while also improving space utilization and ensuring the stability and reliability of the tire during inflation, cooling and shaping processes.

[0040] Furthermore, the bottom of the column 23 has a mounting plate 26 with mounting holes 27, and also includes a screw 28 for passing through the mounting holes 27. After passing through the mounting holes 27, the screw 28 is used to fix the mounting plate 26 to the ground.

[0041] In this embodiment, the bottom of the column 23 is provided with a mounting plate 26, and the mounting plate 26 is provided with mounting holes 27. By inserting the screw 28 into the mounting hole 27 and tightening it, the mounting plate 26 can be firmly fixed to the ground, thereby ensuring the stability and reliability of the entire frame 1 and preventing the frame 1 from shaking during the tire inflation, cooling and shaping process, which would affect the operating accuracy and product quality.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An adjustable rear pneumatic tire rim device, characterized in that, The device includes a frame (1) for mounting on the ground, and an upper rim assembly (2) and a lower rim assembly (3) mounted on the frame (1). The upper rim assembly (2) and the lower rim assembly (3) are arranged correspondingly and are used to fix the tire. The lower rim assembly (3) includes a telescopic cylinder (4) mounted on the frame (1) and a drive unit mounted on the frame (1) for driving the telescopic cylinder (4). (5) A lower rim base (6) is also provided on the telescopic end of the telescopic cylinder (4). After the telescopic cylinder (4) is telescopic, it is used to drive the lower rim base (6) to lift the tire. The upper rim assembly (2) includes an upper rim base (7) threaded on the frame (1). The upper rim base (7) is used to abut the tire. After the upper rim base (7) is threaded on the frame (1), it is used to adjust the distance between the upper rim base (7) and the lower rim base (6).

2. The adjustable rear pneumatic rim device according to claim 1, characterized in that, The upper rim assembly (2) and the lower rim assembly (3) each have two sets, and are respectively arranged on the frame (1).

3. The adjustable rear pneumatic rim device according to claim 1, characterized in that, The upper rim assembly (2) also includes a slide rail (8) disposed on the frame (1), and the upper rim base (7) is slidably disposed on the slide rail (8).

4. The adjustable rear pneumatic rim device according to claim 3, characterized in that, The slide rail (8) is provided with a limiting block (9), and the upper wheel rim base (7) abuts against the limiting block (9) and is arranged concentrically with the lower wheel rim base (6).

5. The adjustable rear pneumatic rim device according to claim 3, characterized in that, The upper rim assembly (2) further includes a mounting base (10), which has a groove (11). The mounting base (10) is slidably mounted on the slide rail (8) through the groove (11). The mounting base (10) has a mounting cavity (12), in which a first gear (13) is rotatably mounted. The mounting base (10) also has a clearance groove (14) for avoiding the rotation of the first gear (13). The assembly also includes a drive motor (15) mounted on the mounting base (10). The drive end of the drive motor (15) is provided with a second gear (16). The second gear (16) meshes with the first gear (13) through the clearance groove (14). The first gear (13) has a threaded hole (17). The upper rim base (7) is threaded into the threaded hole (17). After the second gear (16) rotates, it drives the upper rim base (7) to move within the mounting cavity (12).

6. The adjustable rear pneumatic rim device according to claim 1, characterized in that, The drive unit (5) includes a hydraulic cylinder (18) mounted on the frame (1), and a first hydraulic line (19), one end of which is connected to the hydraulic cylinder (18) and the other end of which is connected to a telescopic cylinder (4). It also includes a second hydraulic line (20), one end of which is connected to the first hydraulic line (19) and the other end of which is connected to another telescopic cylinder (4). A first control valve (21) is provided between the two telescopic cylinders (4) on the first hydraulic line (19), and a second control valve (22) is provided between the telescopic cylinder (4) and the hydraulic cylinder (18) near the hydraulic cylinder (18) on the first hydraulic line (19).

7. The adjustable rear pneumatic rim device according to claim 1, characterized in that, The frame (1) includes two columns (23) and a first crossbeam (24) and a second crossbeam (25) disposed between the two columns (23). The upper rim assembly (2) is located on the first crossbeam (24), and the lower rim assembly (3) is located on the second crossbeam (25).

8. The adjustable rear pneumatic rim device according to claim 7, characterized in that, The column (23) has a mounting plate (26) at its bottom, and the mounting plate (26) has a mounting hole (27). It also includes a screw (28) for passing through the mounting hole (27). After the screw (28) passes through the mounting hole (27), it is used to fix the mounting plate (26) to the ground.

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