Tire testing equipment for testing anti-puncturing tire

Abstract

The utility model relates to the technical field of tire testing, and discloses a tire testing device for anti-puncture tire testing, which comprises a rack, a hydraulic cylinder is fixedly connected to the top wall of the rack, the output end of the hydraulic cylinder penetrates through the inner top wall of the rack and is fixedly connected with a support plate, the lower side of a driving gear is meshed with a fluted disc, and the fluted disc is connected with a driving motor. A driving motor is fixedly connected to the lower side of the rear wall of the connecting plate, the output end of the driving motor penetrates through the inner rear wall of the fluted disc and is fixedly connected with a first bevel gear, a plurality of second bevel gears are meshed with the periphery of the first bevel gear, and threaded rods are fixedly connected to the ends, away from each other, of the second bevel gears; the peripheries of the multiple threaded rods are in threaded connection with moving blocks, a plurality of through grooves are formed in the front wall of the fluted disc, and the front ends of the multiple moving blocks penetrate through the through grooves and are fixedly connected with abutting rods. According to the utility model, the condition that tires with different specifications encounter nails during rotation can be simulated, so that the anti-puncturing test of the tires is more reliable.

Description

Technical Field

[0001] This utility model relates to the field of tire testing technology, and in particular to a tire testing device for puncture-resistant tire testing. Background Technology

[0002] Tires are an indispensable and important component of vehicles such as cars, motorcycles, and ships. They are mainly used to support the weight of the vehicle, provide traction, and absorb shocks. Since tires are in direct contact with the ground during vehicle operation, but the ground environment is complex, sharp objects such as nails may puncture the tires, thus affecting their normal use. Therefore, tires are usually tested for puncture resistance during production.

[0003] A search revealed Chinese Patent Publication No. CN216449178U, which discloses a tire testing device for puncture-resistant tire testing. The device includes a testing support platform, a multi-directional clamping mechanism, and a friction rotation mechanism. The multi-directional clamping mechanism comprises a motion cavity, a transmission screw, a force-transmitting threaded cylinder, and a supporting clamping plate. The friction rotation mechanism includes a transmission roller, a bearing plate, and a rotation supply component. This invention, through the friction rotation mechanism, allows the transmission roller's surface to closely contact the tire tread when the multi-directional clamping mechanism is used to fix the tire. When puncture resistance testing of different tire treads is required, the rotation supply component in the friction rotation mechanism drives the transmission roller to rotate rapidly, ensuring full contact between its roller surface and the tire tread. The friction force drives the tire to rotate, achieving automatic tire tread replacement. This facilitates puncture resistance testing of different tire treads by operators, saving significant labor and improving work efficiency.

[0004] However, the tire puncture resistance testing device in this application uses a transmission gear to drive the tire to rotate. Since the specifications of the transmission gear are fixed, it cannot be flexibly applied to tires of different specifications. Furthermore, during the test, staff need to use a handheld air gun or other equipment to insert nails into the tire, which cannot simulate the puncture resistance effect when the tire encounters nails or other sharp objects during vehicle operation. Therefore, the test results of this device are unreliable. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a tire testing device for puncture-resistant tire testing, aiming to improve the problem that the existing technology cannot simulate the puncture-resistant effect of tires in actual use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tire testing device for puncture-resistant tire testing, comprising a frame, a hydraulic cylinder fixedly connected to the top wall of the frame, the output end of the hydraulic cylinder penetrating the inner top wall of the frame and fixedly connected to a support plate, an electric push rod fixedly connected to the rear side of the top wall of the support plate, a connecting plate fixedly connected to the output end of the electric push rod, a servo motor fixedly connected to the upper side of the rear wall of the connecting plate, a drive gear fixedly connected to the output end of the servo motor penetrating the connecting plate, a gear plate meshing with the lower side of the drive gear, a drive motor fixedly connected to the lower side of the rear wall of the connecting plate, a bevel gear fixedly connected to the output end of the drive motor penetrating the inner rear wall of the gear plate, a plurality of bevel gears meshing with the outer circumference of the bevel gear, threaded rods fixedly connected to the far ends of the plurality of bevel gears, moving blocks threadedly connected to the outer circumferences of the plurality of threaded rods, a plurality of through slots opened on the front wall of the gear plate, and abutment rods fixedly connected to the front ends of the plurality of moving blocks penetrating the through slots.

[0007] Optionally, a base is fixedly connected to the middle of the bottom wall of the frame, and one end of a bidirectional screw is rotatably connected to the side wall of the base. The other end of the bidirectional screw passes through the other side wall of the base. Sliding grooves are provided on both sides of the top wall of the base. Clamping plates are threaded to both ends of the two bidirectional screws. The upper part of the two clamping plates passes through the sliding grooves. A placement groove is provided in the middle of the top wall of the base.

[0008] Optionally, an electric push rod two is fixedly connected to the front side of the top wall of the support plate, and the output end of the electric push rod two is rotatably connected to a limit plate.

[0009] Optionally, the connecting plate is configured as a T-shaped plate, and the upper part of the support plate is slidably connected to the inner wall of the support plate.

[0010] Optionally, all of the movable blocks are rectangular blocks and are slidably connected to the inner wall of the through groove.

[0011] Optionally, the lower parts of both clamping plates are rectangular plates and are slidably connected to the inner wall of the groove.

[0012] This utility model has the following beneficial effects:

[0013] 1. In this utility model, through the combined action of the drive motor, bevel gear one, bevel gear two, threaded rod, moving block, abutment rod, through groove, servo motor, gear, gear plate and hydraulic cylinder, it is possible to simulate the situation of tires of different specifications encountering nails when rotating, making the tire puncture prevention test more reliable.

[0014] 2. In this utility model, through the combined action of the base, placement groove, bidirectional screw, sliding groove and clamping plate, when the nail is placed in the placement groove, rotating the bidirectional screw can drive the clamping plates on both sides to approach and clamp the nail at the same time. Attached Figure Description

[0015] Figure 1 This is a perspective view of a tire testing device for puncture-resistant tire testing proposed in this utility model;

[0016] Figure 2 This is a bottom view of a tire testing device for puncture-resistant tire testing proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the connection structure of the toothed disc in a tire testing device for puncture-resistant tire testing proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the internal structure of the base in a tire testing device for puncture-resistant tire testing proposed in this utility model.

[0019] Legend:

[0020] 1. Frame; 2. Hydraulic cylinder; 3. Support plate; 4. Electric push rod one; 5. Electric push rod two; 6. Connecting plate; 7. Servo motor; 8. Drive gear; 9. Gear plate; 10. Abutment rod; 11. Through slot; 12. Limiting plate; 13. Base; 14. Bidirectional screw; 15. Clamping plate; 16. Threaded rod; 17. Moving block; 18. Drive motor; 19. Bevel gear one; 20. Bevel gear two; 21. Placement slot; 22. Slide groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-4 This utility model provides an embodiment of a tire testing device for puncture-resistant tire testing, comprising a frame 1, a hydraulic cylinder 2 fixedly connected to the top wall of the frame 1, the output end of the hydraulic cylinder 2 penetrating the inner top wall of the frame 1 and fixedly connected to a support plate 3, a base 13 installed and connected to the middle of the inner bottom wall of the frame 1, a circular placement groove 21 formed in the middle of the top wall of the base 13, the base 13 being located at the center of the frame 1, and the placement groove 21 being located at the center of the base 13. In actual use, to better simulate puncture tire testing, the base 13 can be mounted on the frame 1 in multiple positions, such as moving back and forth or left and right relative to the surface of the frame 1. The movement of the base 13 realizes the relative movement between the tire and the nail in the puncture-resistant tire test, thus better simulating reality.

[0023] When testing puncture-resistant tires, after securing the tire, the staff can place a nail in the placement slot 21 on the base 13. Then, the hydraulic cylinder 2 is activated to move the support plate 3 fixed at the output end downward. When the support plate 3 moves downward, it can move the connected tire downward and impact it with the nail, thus enabling the puncture resistance test.

[0024] Reference Figures 1-4 An electric push rod 4 is fixedly connected to the rear side of the top wall of the support plate 3. A connecting plate 6 is fixedly connected to the output end of the electric push rod 4. The connecting plate 6 is a T-shaped plate. The upper part of the connecting plate 6 is slidably connected to the inner wall of the support plate 3. A servo motor 7 is fixedly connected to the upper side of the rear wall of the connecting plate 6. The output end of the servo motor 7 passes through the connecting plate 6 and is fixedly connected to a drive gear 8. A gear disk 9 meshes with the lower side of the drive gear 8. The gear disk 9 is rotatably connected to the connecting plate 6. A drive motor 18 is fixedly connected to the lower side of the rear wall of the connecting plate 6. The output end of the drive motor 18 passes through the inner rear wall of the gear disk 9 and is fixedly connected to a bevel gear 19. Multiple bevel gears 20 mesh with the outer circumference of the bevel gear 19. Threaded rods 16 are fixedly connected to the far ends of the multiple bevel gears 20. The far ends of the multiple threaded rods 16 are rotatably connected to the inner wall of the gear disk 9. Moving blocks 17 are threadedly connected to the outer circumference of the multiple threaded rods 16. A section is opened on the front wall of the gear disk 9. There are multiple through slots 11, multiple bevel gears 20, threaded rods 16, moving blocks 17, and the through slots 11 are all evenly distributed in a ring. The multiple moving blocks 17 are all rectangular blocks and are slidably connected to the inner wall of the through slots 11. The front ends of the multiple moving blocks 17 all penetrate through the through slots 11 and are fixedly connected to L-shaped abutment rods 10. The abutment rods 10 and moving blocks 17 are all tightened and fixed by bolts. An electric push rod 25 is fixedly connected to the front side of the top wall of the support plate 3. The output end of the electric push rod 25 is rotatably connected to a limit plate 12. One end of a bidirectional screw 14 is rotatably connected to the side wall of the base 13. The other end of the bidirectional screw 14 penetrates through the other side wall of the base 13. Slide grooves 22 are opened on both sides of the top wall of the base 13. The two bidirectional screws 14 are threaded to both ends with L-shaped clamping plates 15. The lower part of the two clamping plates 15 are rectangular plates and are slidably connected to the inner wall of the slide grooves 22. The upper part of the two clamping plates 15 penetrates through the slide grooves 22.

[0025] When the worker places the nail in the placement groove 21, the double-acting screw 14 can drive the clamping plates 15 on both sides to move. Since the clamping plates 15 slide on the inner wall of the slide groove 22, the slide groove 22 can limit the clamping plates 15, so that the clamping plates 15 will not rotate with the rotation of the double-acting screw 14. This allows the two clamping plates 15 to come closer to each other and clamp and fix the nail in the placement groove 21, thereby achieving effective clamping and fixing of nails of different specifications.

[0026] After the nails are fixed, the workers can install the abutment rods 10 onto the corresponding moving blocks 17 using bolts according to the position of the gap on the tire hub. Then, the tire is placed on the outer periphery of the abutment rods 10, so that multiple abutment rods 10 pass through the gap on the tire hub. Then, the drive motor 18 is started, which drives the bevel gear 19 fixed at the output end to rotate. When the bevel gear 19 rotates, it drives multiple bevel gears 20 meshing on the outer periphery to rotate. When the bevel gears 20 rotate, they drive the corresponding threaded rods 16 to rotate. Since the threaded rods 16 also drive the connected moving blocks 17 to move when they rotate, and since the moving blocks 17 slide in the through grooves 11, the through grooves 11 can restrict the moving blocks 17. This prevents the movable block 17 from rotating with the threaded rod 16. Therefore, when the threaded rod 16 rotates, it can drive the movable block 17 to move along the threaded rod 16. As multiple threaded rods 16 rotate, multiple connected movable blocks 17 can move closer or further away simultaneously. When multiple movable blocks 17 move away simultaneously, they can drive the corresponding abutting rod 10 to move away simultaneously, thereby abutting and limiting the tire from the inside. Then, the servo motor 7 is started to drive the gear 8 to drive the gear plate 9 to rotate, thereby driving the abutting tire to rotate. Under the action of the hydraulic cylinder 2, the rotating tire can be driven to move down and collide with the nail, thereby simulating the situation where the tire encounters a nail while rotating, making the tire puncture prevention test more reliable.

[0027] Working principle: In actual use, the operator can place the tire on the outer periphery of the abutment rod 10, so that multiple abutment rods 10 pass through the gap on the tire hub. Then, the drive motor 18 is started to drive the bevel gear 19 to rotate. When the bevel gear 19 rotates, it can drive multiple meshing bevel gears 20 and threaded rod 16 to rotate. When the threaded rod 16 rotates, it can drive multiple moving blocks 17 and abutment rods 10 to move away simultaneously, thereby abutting and limiting the tire from the inside. Then, the operator can place the nail in the placement groove 21. By rotating the bidirectional screw 14, the clamping plates 15 on both sides can be driven to move closer and clamp the nail. Then, the servo motor 7 is started to drive the gear 8 to drive the gear plate 9 to rotate, thereby driving the abutment tire to rotate. Under the action of the hydraulic cylinder 2, the rotating tire can be driven to move down and collide with the nail, thereby simulating the situation of the tire encountering a nail when rotating, making the tire puncture prevention test more reliable.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tire testing device for puncture-resistant tire testing, comprising a frame (1), characterized in that: A hydraulic cylinder (2) is fixedly connected to the top wall of the frame (1). The output end of the hydraulic cylinder (2) passes through the inner top wall of the frame (1) and is fixedly connected to a support plate (3). An electric push rod (4) is fixedly connected to the rear side of the top wall of the support plate (3). A connecting plate (6) is fixedly connected to the output end of the electric push rod (4). A servo motor (7) is fixedly connected to the upper side of the rear wall of the connecting plate (6). A drive gear (8) is fixedly connected to the output end of the servo motor (7) through the connecting plate (6). A gear plate (9) meshes with the lower side of the drive gear (8). The rear wall of the connecting plate (6) A drive motor (18) is fixedly connected to the lower side. The output end of the drive motor (18) passes through the inner rear wall of the gear disk (9) and is fixedly connected to a bevel gear (19). Multiple bevel gears (20) mesh with the outer circumference of the bevel gear (19). Threaded rods (16) are fixedly connected to the far ends of the multiple bevel gears (20). Moving blocks (17) are threadedly connected to the outer circumference of the multiple threaded rods (16). Multiple through slots (11) are opened on the front wall of the gear disk (9). The front ends of the multiple moving blocks (17) pass through the through slots (11) and are fixedly connected to abutment rods (10).

2. The tire testing equipment for puncture-resistant tire testing according to claim 1, characterized in that: A base (13) is installed and connected to the middle of the bottom wall of the frame (1). One end of a bidirectional screw (14) is rotatably connected to the side wall of the base (13). The other end of the bidirectional screw (14) passes through the other side wall of the base (13). Slide grooves (22) are provided on both sides of the top wall of the base (13). Both ends of the two bidirectional screws (14) are threaded with clamps (15). The upper part of the two clamps (15) passes through the slide grooves (22). A placement groove (21) is provided in the middle of the top wall of the base (13).

3. The tire testing equipment for puncture-resistant tire testing according to claim 1, characterized in that: The front side of the top wall of the support plate (3) is fixedly connected to an electric push rod (5), and the output end of the electric push rod (5) is rotatably connected to a limit plate (12).

4. The tire testing equipment for puncture-resistant tire testing according to claim 1, characterized in that: The connecting plate (6) is configured as a T-shaped plate, and the upper part of the support plate (3) is slidably connected to the inner wall of the support plate (3).

5. A tire testing device for puncture-resistant tire testing according to claim 1, characterized in that: The multiple movable blocks (17) are all rectangular blocks and are slidably connected to the inner wall of the through groove (11).

6. A tire testing device for puncture-resistant tire testing according to claim 2, characterized in that: The lower parts of the two clamping plates (15) are rectangular plates and are slidably connected to the inner wall of the groove (22).

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