Universal tire testing machine

Abstract

The utility model discloses a universal tire testing machine, which is characterized in that a vertical guide groove is arranged on a stand column of a frame body, and the vertical guide groove is matched with a sliding block on a water tank, so that the stability of the water tank during vertical lifting can be improved; an external thread, a positioning disc and a locking disc are arranged on the outer diameter of the rotating sleeve, a multi-position hub is fixed to the external thread in a threaded mode, a middle positioning plate is arranged on the outer diameter of the multi-position hub, and hub assembling faces of multiple models are arranged on the left side and the right side of the middle positioning plate; a user can achieve selective installation on the left side face and the right side face, the same equipment can achieve assembly of hubs of multiple models, rotation air leakage can be avoided by arranging the sealing assembly between the air supply pipe and the rotating sleeve, and the universal tire testing machine is ideal.

Description

Technical Field

[0001] This utility model belongs to the field of automotive repair equipment technology, specifically relating to a general-purpose tire testing machine. Background Technology

[0002] Existing tire repair equipment typically fixes the tire to a rotating device, and while rotating the tire, it locates the leak by visual inspection or by spraying soapy water onto the tire. If the tire leak is hidden or small, it is very difficult to identify the leak in this way.

[0003] Through technological innovation, those skilled in the art have designed a tire testing machine, as disclosed in publication number CN218822979U. This machine features two horizontally aligned rotating sleeves on a frame to clamp and seal the tire. One rotating sleeve has an air supply pipe that supplies air to the tire. A liftable water tank is located at the bottom of the rotating sleeve. The tire is fixed between the two rotating sleeves and inflated by the air supply. The tire is then immersed in the water tank, and the location of any leaks is visible when the tire is rotated. This invention has a simple structure, is easy to use, and allows for rapid detection of tire leaks.

[0004] However, the following new technical problems have arisen in the actual use of the aforementioned equipment: 1. The water tank is fixed in the middle, and because the water tank is full of liquid and has a large weight, it is unstable when moving vertically; 2. When using this type of equipment, the axial rotating part uses a bearing assembly for rotation, but there is air leakage when high pressure is supplied, which affects the effectiveness of leak detection; 3. The existing equipment can only be used to test the same type of tire, which has a narrow range of application and is not conducive to commercial promotion.

[0005] In view of the shortcomings of existing technologies, the technical problem that needs to be solved in this field is: how to design a tire repair machine that can perform multi-model tire inspection and avoid technical problems such as air leakage and pressure loss during inspection. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies, this utility model provides a universal tire testing machine with a novel structural design. It achieves sealed testing by sealing the tire rotation device and uses replaceable components to support various tire models, enabling multiple uses and improving equipment efficiency.

[0007] To achieve the above technical objectives, this utility model adopts the following solution: a universal tire testing machine, comprising a support frame, two rotating sleeves horizontally corresponding and coaxially arranged on the frame, multiple hubs on the rotating sleeves, wherein at least one of the multiple hubs can move laterally to clamp the tire; an air supply pipe is provided on at least one of the multiple hubs to supply air to the inside of the tire; a liftable water tank is provided at the lower part of the rotating sleeves; a vertical guide groove is provided on the side wall of the frame column, the vertical guide groove cooperates with the slider on the water tank, and a lifting drive device is provided at the lower part of the water tank to drive the vertical lifting of the water tank.

[0008] The outer diameter of the rotating sleeve is provided with an external thread, a positioning plate, and a locking plate. Multiple wheel hubs are threadedly fixed on the external thread. A central positioning plate is provided on the outer diameter of the multiple wheel hubs. Multiple wheel hub assembly surfaces of various models are provided on the left and right sides of the central positioning plate.

[0009] The air supply pipe is located at the center of the rotating sleeve, and several sealing components are provided between the air supply pipe and the rotating sleeve.

[0010] An axial sealing hole is provided between the rotating sleeve and the air supply pipe, and the sealing assembly is disposed in the axial sealing hole; the sealing assembly includes an outer ring and an inner ring, and a rubber sealing ring is provided between the outer ring and the inner ring.

[0011] The inner ring has an internal sealing groove on its outer diameter for placing a rubber sealing ring, and the depth of the internal sealing groove is greater than the radius of the rubber sealing ring.

[0012] The frame is equipped with a drive device, which drives the rotating sleeve to rotate through rotation.

[0013] The frame is equipped with a swing frame, and the swing frame is equipped with a support rod positioning device. The support rod positioning device is equipped with a T-shaped support rod, which is used to position the rotating sleeve and the frame.

[0014] The beneficial effects of this utility model are as follows: A vertical guide groove is provided on the frame column, which cooperates with the slider on the water tank to improve the stability of the water tank during vertical lifting; an external thread, a positioning plate, and a locking plate are provided on the outer diameter of the rotating sleeve; multiple wheel hubs are threadedly fixed on the external thread; a central positioning plate is provided on the outer diameter of the multiple wheel hubs; and multiple wheel hub assembly surfaces of various models are provided on the left and right sides of the central positioning plate; users can selectively install on the left and right sides; the same device can assemble multiple wheel hub models; and by providing a sealing component between the air supply pipe and the rotating sleeve, air leakage during rotation can be avoided, making it an ideal universal tire testing machine. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 3 for Figure 2 Enlarged schematic diagram of the structure of region A in the middle;

[0018] Figure 4 This is a schematic diagram of the internal structure of the sealing assembly;

[0019] In the attached image:

[0020] 1. Gantry frame; 11. Base; 12. Crossbeam; 13. Air supply pipe; 14. Rotating sleeve; 15. Positioning plate; 16. Driven gear plate; 17. Frame column; 18. Axial sealing hole; 2. Water tank; 21. Vertical guide groove; 22. Lifting cylinder; 3. Fixed multi-position wheel hub; 31. Central positioning plate; 32. Station 13; 33. Station 14; 34. Station 15; 35. Station 16; 4. Movable multi-position wheel. 5. Hub, 51. Swing frame, 52. Positioning frame, 53. T-shaped positioning rod, 6. Lateral drive cylinder, 61. Drive rod, 7. Drive motor, 71. Drive gear plate, 8. Air supply branch pipe, 81. Pressure relief branch pipe, 82. Pressure relief valve, 83. Air supply valve, 84. Pressure gauge, 9. Sealing assembly, 91. Inner ring, 92. Internal sealing groove, 93. Outer ring, 94. Rubber sealing ring, 10. Locking disc, 101. Locking force application point. Detailed Implementation

[0021] As shown in the attached drawings, this utility model is a general tire testing machine, which includes a gantry frame 1 that can provide support. The bottom of the gantry frame 1 is provided with a base 11 and a crossbeam 12.

[0022] Two rotating sleeves 14 are horizontally arranged on the left and right sides of the gantry frame 1, respectively for mounting a fixed multi-position wheel hub 3 and a movable multi-position wheel hub 4. The fixed multi-position wheel hub 3 and the movable multi-position wheel hub 4 are coaxially arranged. Figure 2 , 3 As shown, the fixed multi-position wheel hub 3 and the movable multi-position wheel hub 4 have the same cross-sectional structure, including a central positioning plate 31 on the outer diameter. Multiple wheel hub assembly surfaces of various models are provided on the left and right sides of the central positioning plate 31. In this embodiment, taking the fixed multi-position wheel hub 3 as an example, the left side of the central positioning plate 31 has workstations 13 (32) and 14 (33), and the right side has workstations 15 (34) and 16 (35). The movable multi-position wheel hub 4 is symmetrically arranged with the fixed multi-position wheel hub 3.

[0023] Through the above structural design, multiple tire models can be installed on the same multi-position wheel hub assembly. To achieve this functional expansion, this invention must also design the movable multi-position wheel hub 4 and the fixed multi-position wheel hub 3 as quick-installation structures, allowing for symmetrical installation and fixation on both sides. Figure 3 As shown, the outer diameter of the rotating sleeve 14 is provided with an external thread, a positioning plate 15 and a locking plate 10. The locking plate 10 is also provided with a locking force point 101 for applying force to the suspension tool. The movable multi-position hub 4 and the fixed multi-position hub 3 are suspended and fixed on the outer diameter of the rotating sleeve 14 and locked by the locking plate 10.

[0024] An air supply pipe 13 is installed on the inner side of the left-side frame column of the gantry frame 1. A rotating sleeve 14 is installed around the air supply pipe 13. An air supply branch pipe 8 and a pressure relief branch pipe 81 are connected to the air supply pipe 13. An air supply valve 83 and a pressure relief valve 82 are installed on the air supply branch pipe 8 and the pressure relief branch pipe 81, respectively. A pressure gauge 84 is also installed on the air supply branch pipe 8 to display the air supply pressure.

[0025] A driven gear 16 is also provided on the rotating sleeve 14 on one side of the fixed multi-position hub 3. With the above structure, the fixed multi-position hub 3 can be rotated under the drive of the drive gear 71 on the drive motor 7.

[0026] A transverse drive cylinder 6 is fixed on the right-side frame column 17 of the gantry frame 1. The drive rod 61 of the transverse drive cylinder 6 is connected to a rotating sleeve 14, on which a movable multi-position wheel hub 4 is fixed. The axial movement of the movable multi-position wheel hub 4 can be achieved by driving the transverse drive cylinder 6, and the relative movement between the fixed multi-position wheel hub 3 and the movable multi-position wheel hub 4 can achieve the clamping of the tire.

[0027] With the above structural configuration, the tire can be clamped between the fixed multi-position wheel hub 3 and the movable multi-position wheel hub 4. Air is then supplied to the tire via the air supply branch pipe 8. After air supply is complete, the tire can rotate 360 ​​degrees in place to locate leaks. To achieve this rotation function, a drive motor 7 is installed on the frame column 17 of the gantry 1. The drive motor is equipped with a drive gear 71. The driven gear 16 on the fixed multi-position wheel hub 3 is driven to rotate via a chain and the drive gear 71.

[0028] However, during leak testing, high-pressure gas fills the tire. At this time, the rotating sleeve 14 and the air supply pipe 13 are assembled using a bearing, which uses a common sealing ring, resulting in air leakage. This leakage affects the detection of tire leaks. To improve this problem, this invention provides an axial sealing hole 18 between the air supply pipe 13 and the rotating sleeve 14, and several sealing components 9 are installed within the axial sealing hole 18. Figure 4As shown, the sealing assembly 9 includes an outer ring 93 and an inner ring 91, with a rubber sealing ring 94 disposed between the outer ring 93 and the inner ring 91. Furthermore, an internal sealing groove 92 is provided on the outer diameter of the inner ring 91 to accommodate the rubber sealing ring 94, and the depth of the internal sealing groove 92 is greater than the radius of the rubber sealing ring 94. This structure further constrains the rubber sealing ring 94, making it less likely to detach. This structure effectively prevents air leakage between the rotating sleeve 14 and the air supply pipe 13.

[0029] A fixed multi-position wheel hub 3 has an air supply pipe 13 on one side to supply air to the inside of the tire; a liftable water tank 2 is provided at the lower part of the rotating sleeve 14; a vertical guide groove 21 is provided on the side wall of the frame column 17, and the vertical guide groove 21 cooperates with the slider on the water tank 2. This design improves the stability of the water tank 2 when it moves vertically.

[0030] A crossbeam 12 is installed on the gantry frame 1. Two lifting cylinders 22 are hinged and fixed on the crossbeam 12 as lifting drive devices. They are used to realize the vertical lifting of the water tank 2. The water tank 2 is driven by the lifting cylinders 22 to achieve vertical lifting, so that the water comes into contact with the inflated tire and the tire leak point is detected.

[0031] Furthermore, in this invention, after inflation, the tire clamping and fixing is only achieved by the lateral drive cylinder 6. During inflation, the tire cannot be stably clamped by the fixed multi-position wheel hub 3 and the movable multi-position wheel hub 4. Therefore, this invention provides a swing frame 5 on the gantry 1. The swing frame 5 has a support rod 54 fixed inside. Axial support can be achieved by swinging the swing frame 5 to a certain position through the support rod 54. However, since the support rod 54 in the prior art is a rod of equal diameter, it is easy to slip out inside the swing frame 5. This invention designs a T-shaped positioning rod 52 to prevent it from slipping out disorderly.

[0032] This utility model stabilizes the fixed structure of the water tank and effectively avoids air leakage between the rotating sleeve 14 and the air supply pipe 13. It can also enable the same equipment to test different models of tires, increasing the scope of application and making it more conducive to commercial promotion.

Claims

1. A universal tire testing machine, comprising a support frame, wherein two rotating sleeves are horizontally aligned and coaxially arranged on the frame, characterized in that: The rotating sleeve is equipped with multiple wheel hubs, at least one of which can move laterally to clamp the tire; at least one of the multiple wheel hubs is equipped with an air supply pipe to supply air to the tire; the lower part of the rotating sleeve is equipped with a liftable water tank; the side wall of the frame column is equipped with a vertical guide groove, which cooperates with the slider on the water tank; the lower part of the water tank is equipped with a lifting drive device to vertically lift the water tank; the outer diameter of the rotating sleeve is equipped with an external thread, a positioning plate and a locking plate; the external thread is threaded to fix multiple wheel hubs; the outer diameter of the multiple wheel hubs is equipped with a central positioning plate; multiple wheel hub assembly surfaces of various models are provided on the left and right sides of the central positioning plate.

2. The universal tire testing machine as described in claim 1, characterized in that: The air supply pipe is located at the center of the rotating sleeve, and several sealing components are provided between the air supply pipe and the rotating sleeve.

3. A universal tire testing machine as described in claim 2, characterized in that: An axial sealing hole is provided between the rotating sleeve and the air supply pipe, and the sealing assembly is disposed in the axial sealing hole; the sealing assembly includes an outer ring and an inner ring, and a rubber sealing ring is provided between the outer ring and the inner ring.

4. A universal tire testing machine as described in claim 3, characterized in that: The inner ring has an internal sealing groove on its outer diameter for placing a rubber sealing ring, and the depth of the internal sealing groove is greater than the radius of the rubber sealing ring.

5. A universal tire testing machine as described in claim 1, characterized in that: The frame is equipped with a swing frame, and the swing frame is equipped with a support rod positioning device. The support rod positioning device is equipped with a T-shaped support rod, which is used to position the rotating sleeve and the frame.

Images