Device for detecting wear resistance of automobile tire

Abstract

The utility model relates to the technical field of tire detection, in particular to a device for detecting the wear resistance of an automobile tire, which is provided with a pure manual screwing adjusting mechanism for supporting the inner side of the tire, eliminating interference hidden dangers, reducing cost and improving reliability. Comprising a workbench, a first side plate, a rotary driving motor, a synchronizing shaft, an adjusting shell, a first inner threaded sleeve, a first threaded rod, a first twisting handle, a conical block, a contact block, a guide frame, a top supporting block, a guide sleeve, a first connecting spring and a testing plate, the first side plate is connected to the right front side of the top end of the workbench, and the rotary driving motor is connected to the upper portion of the outer side of the first side plate; the output end of the rotary driving motor is connected with the middle of the right side of the adjusting shell through a synchronizing shaft, the outer side of the guide frame is connected with the middle of the inner side of the jacking block, the inner side of the guide frame is connected with a contact block, and the contact block movably makes contact with the conical block. The rear side of the top of the workbench is provided with a test plate through an adjusting mechanism.

Description

Technical Field

[0001] This utility model relates to the technical field of tire testing, specifically to a device for testing the wear resistance of automobile tires. Background Technology

[0002] Tires are annular, elastic rubber products that are mounted on various vehicles or machinery and roll on the ground. They are typically mounted on metal rims, supporting the vehicle body, cushioning external impacts, ensuring contact with the road surface, and guaranteeing vehicle performance. Tires are often used under complex and harsh conditions, enduring various deformations, loads, forces, and extreme temperatures during operation. Therefore, they must possess high load-bearing capacity, traction, and cushioning performance. Simultaneously, they are required to have high wear resistance and flexural strength, as well as low rolling resistance and heat generation. Therefore, wear resistance testing is necessary after tire manufacturing.

[0003] An existing tire abrasion resistance testing device, such as the one described in patent publication number CN222979342U, features a second electric push rod and a testing plate. A tire passes through a rotating shaft and is placed on the outside of a top plate. Activating the second electric push rod pushes the top plate into contact with the inside of the tire, facilitating position adjustment. This allows the device to support and fix tires of different sizes, increasing its applicability and practicality. Multiple second electric push rods and top plates can be used simultaneously to test multiple tires. Pulling the pull plates to the sides separates the positioning pin from the inside of the testing plate, then engages the friction pad inside the testing plate. Releasing the pull plates resets the second spring, causing the positioning pin and friction pad to reconnect and fix the pad's position. The operation is simple and quick, facilitating the installation and replacement of the friction pad, thus improving work efficiency.

[0004] However, since the clamping method is achieved by using an electric push rod, the shaft must be continuously rotated, causing wiring interference with the electric push rod and resulting in poor reliability. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a tire wear resistance testing device with a manually operated screw-on adjustment mechanism that supports the inner side of the tire, eliminating potential interference, reducing costs, and improving reliability.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a device for testing the wear resistance of automobile tires, comprising a worktable, a side plate, a rotary drive motor, a synchronous shaft, an adjusting shell, an internal threaded sleeve, a threaded rod, a handle, a conical block, a contact block, a guide frame, a top support block, a guide sleeve, a connecting spring, and a test plate. The top right front side of the worktable is connected to the side plate, and the upper outer side of the side plate is connected to the rotary drive motor. The output end of the rotary drive motor is connected to the middle right side of the adjusting shell via the synchronous shaft. The left side of the adjusting shell... The inner threaded sleeve is screwed to the outer wall of the threaded rod. The outer side of the threaded rod is connected to the inner side of the handle. A conical block is connected to the inner side of the threaded rod. Multiple sets of guide sleeves are evenly connected to the middle of the adjusting shell. The inner wall of the guide sleeve is slidably connected to the outer wall of the guide frame. The outer side of the guide frame is connected to the middle of the inner side of the top support block. A contact block is connected to the inner side of the guide frame. The contact block is in movable contact with the conical block. Each set of guide sleeves on the outer side of the adjusting shell is connected to the corresponding inner side of the top support block. A test plate is set on the rear side of the top of the workbench via the adjusting mechanism.

[0009] Preferably, it also includes contact pads, with a set of contact pads connected to the outer side of each set of top support blocks.

[0010] Preferably, the adjustment mechanism includes a second side plate, a second threaded rod, a second lever, a constraint sleeve, a slide, and a second internal threaded sleeve. The top rear side of the workbench is connected to the bottom side of the second side plate. The inner side of the upper part of the second side plate is connected to the second internal threaded sleeve. The inner wall of the second internal threaded sleeve is screwed to the outer wall of the second threaded rod. The rear side of the second threaded rod is connected to the middle front side of the second lever. A set of constraint sleeves is connected to the left and right sides of the upper part of the second side plate. The inner wall of the constraint sleeve is slidably connected to the outer wall of the slide. The second threaded rod and the front side of the slide are connected to the rear side of the test plate via an installation mechanism.

[0011] Preferably, the installation mechanism includes an installation sleeve, an inner frame, bolts, and nuts. The front side of the threaded rod is rotatably connected to the middle of the rear side of the installation sleeve. The front sides of the two sets of slides are respectively connected to the left and right sides of the rear side of the installation sleeve. The inner side of the installation sleeve is detachably installed to the outer side of the inner frame. The front side of the inner frame is connected to the middle of the rear side of the test plate. Multiple sets of bolts pass through the installation sleeve and the inner frame simultaneously and are detachably screwed on the protruding side by nuts.

[0012] Preferably, it also includes an anti-slip wheel, a top block, an extension plate, a second connecting spring, a slide rod, and a pull tab. The anti-slip wheel is connected to the outer front part of the second threaded rod, and the extension plate is connected to the upper middle part of the rear end of the mounting sleeve. The bottom side of the extension plate is connected to the top side of the top block via the second connecting spring. The inner middle part of the extension plate is vertically slidably connected to the outer side of the slide rod. The top side of the slide rod is connected to the middle part of the bottom side of the pull tab, and the bottom side of the slide rod is connected to the middle part of the top side of the top block.

[0013] Preferably, it also includes a bracket and a connecting bearing, wherein the outer side of the middle part of the synchronous shaft is connected to the inner side of the connecting bearing, and the bottom side of the connecting bearing is connected to the corresponding position on the top side of the worktable via the bracket.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a device for testing the wear resistance of automobile tires, which has the following beneficial effects:

[0016] The inner ring of the tire to be tested is placed outside multiple sets of support blocks. With the adjusting shell fixed, the screwdriver is turned to rotate the threaded rod. The threaded rod engages with the inner threaded sleeve, causing the conical block to rotate inward. The conical block then makes contact with multiple sets of contact blocks. The sliding constraint of the guide sleeve's inner guide frame causes the contact blocks to overcome the elastic force of the connecting spring and move radially outward. This causes multiple sets of support blocks to move outward together, supporting the tire to the corresponding position on the inner side. After adjustment, the inner threaded sleeve and threaded rod are self-locking, and the friction between the conical block and the contact blocks is large enough to be overcome by non-human external force. During testing, the rotary drive motor runs, and the synchronous shaft rotates stably under the connection of the side plate, thereby driving the tire to rotate. The friction is detected by the adjustment mechanism and the test plate. The screw-on adjustment mechanism is set to be purely manual to support the inner side of the tire, eliminating interference risks, reducing costs, and improving reliability. Attached Figure Description

[0017] Figure 1 This is an axial view illustrating the structure of this utility model.

[0018] Figure 2 This utility model Figure 1 The left view;

[0019] Figure 3 This utility model Figure 1 Top view;

[0020] Figure 4 This utility model Figure 2 Front view of section B.

[0021] The following are labels in the attached diagram: 1. Workbench; 2. Side plate one; 3. Rotary drive motor; 4. Synchronous shaft; 5. Adjusting housing; 6. Internal threaded sleeve one; 7. Threaded rod one; 8. Tightener one; 9. Conical block; 10. Contact block; 11. Guide frame; 12. Top support block; 13. Guide sleeve; 14. Connecting spring one; 15. Test plate; 16. Contact pad; 17. Side plate two; 18. Threaded rod two; 19. Tightener two; 20. Constraint sleeve; 21. Slide; 22. Mounting sleeve; 23. Embedded frame; 24. Bolt; 25. Nut; 26. Anti-slip wheel; 27. Top block; 28. Extension plate; 29. ​​Connecting spring two; 30. Slide rod; 31. Pull plate; 32. Bracket; 33. Connecting bearing; 34. Internal threaded sleeve two. Detailed Implementation

[0022] 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.

[0023] Example

[0024] Please see Figures 1-4 A device for testing the wear resistance of automobile tires includes a workbench 1, a side plate 2, a rotary drive motor 3, a synchronous shaft 4, an adjusting shell 5, an internal threaded sleeve 6, a threaded rod 7, a handle 8, a conical block 9, a contact block 10, a guide frame 11, a top support block 12, a guide sleeve 13, a connecting spring 14, and a test plate 15. The side plate 2 is connected to the front right side of the top of the workbench 1. The rotary drive motor 3 is connected to the upper outer side of the side plate 2. The output end of the rotary drive motor 3 is connected to the middle right side of the adjusting shell 5 via the synchronous shaft 4. The left inner side of the adjusting shell 5 is screwed to the outer wall of the threaded rod 7 via an internal threaded sleeve 6. The outer side of the threaded rod 7 is connected to the inner side of the handle 8. A conical block 9 is connected to the inner side of the threaded rod 7. Multiple sets of guide sleeves 13 are evenly connected to the middle circumference of the adjusting shell 5. The inner wall of the guide sleeve 13 is slidably connected to the outer wall of the guide frame 11. The outer side of the guide frame 11 is connected to the middle of the inner side of the top support block 12. A contact block 10 is connected to the inner side of the guide frame 11. The contact block 10 is in movable contact with the conical block 9. Each set of guide sleeves 13 on the outer side of the adjusting shell 5... Connecting springs 14 are connected to the outer sides of the corresponding top support blocks 12. A test plate 15 is set on the rear side of the top of the workbench 1 via an adjustment mechanism. The inner ring side of the tire to be tested is placed outside the multiple sets of top support blocks 12. With the adjusting shell 5 fixed, the screw handle 8 is turned to rotate the threaded rod 7. The threaded rod 7 is screwed into the inner threaded sleeve 6. The threaded rod 7 drives the conical block 9 to rotate inward. The conical block 9 makes contact with multiple sets of contact blocks 10. The sliding constraint is achieved by the inner guide frame 11 of the guide sleeve 13. The contact block 10 moves radially outward against the elastic force of the connecting spring 14, thereby causing multiple sets of support blocks 12 to move outward together and support the tire to the corresponding position on the inner side of the tire. After adjustment, it is fixed by the self-locking of the inner threaded sleeve 6 and the threaded rod 7. The friction between the conical block 9 and the contact block 10 is large enough to be overcome by non-human external force. During the test, the rotary drive motor 3 runs, and the synchronous shaft 4 rotates stably under the connection of the side plate 2, thereby driving the tire to rotate. The friction is detected by the adjustment mechanism in conjunction with the test plate 15.

[0025] It also includes contact pads 16, with a set of contact pads 16 connected to the outer side of each set of top support blocks 12; the inner side of the tire can be contacted through the contact pads 16 to avoid slippage and improve stability.

[0026] The adjustment mechanism includes a second side plate 17, a second threaded rod 18, a second handle 19, a constraint sleeve 20, a slide 21, and a second internal threaded sleeve 34. The top rear side of the worktable 1 is connected to the bottom side of the second side plate 17. The inner side of the upper part of the second side plate 17 is connected to the second internal threaded sleeve 34. The inner wall of the second internal threaded sleeve 34 is screwed to the outer wall of the second threaded rod 18. The rear side of the second threaded rod 18 is connected to the middle front side of the second handle 19. A set of constraint sleeves 20 is connected to the left and right sides of the upper part of the second side plate 17 respectively. The inner wall of the constraint sleeve 20 is screwed to the outer wall of the second threaded rod 18. The outer wall of the slide 21 is slidably connected, and the threaded rod 18 is connected to the front side of the slide 21 and the rear side of the test plate 15 via the installation mechanism. It is supported by the rear side of the side plate 17. By turning the handle 19, the handle 19 can drive the threaded rod 18 to rotate. The threaded rod 18 is screwed into the inner threaded sleeve 34. It is slidably constrained by the slide 21 and the constraint sleeve 20 on both sides. It can drive the test plate 15 to move back and forth via the installation mechanism, and is fixed in the corresponding position by the threaded rod 18 and the inner threaded sleeve 34.

[0027] The mounting mechanism includes a mounting sleeve 22, an inner frame 23, bolts 24, and nuts 25. The front side of the threaded rod 18 is rotatably connected to the middle of the rear side of the mounting sleeve 22. The front sides of the two sets of slides 21 are respectively connected to the left and right sides of the rear side of the mounting sleeve 22. The inner side of the mounting sleeve 22 is detachably installed to the outer side of the inner frame 23. The front side of the inner frame 23 is connected to the middle of the rear side of the test plate 15. Multiple sets of bolts 24 pass through the mounting sleeve 22 and the inner frame 23 simultaneously, and can be detachably screwed on the protruding side by nuts 25. After the inner frame 23 of the top support block 12 is inserted into the mounting sleeve 22, the holes and slots correspond, and multiple sets of bolts 24 can pass through the mounting sleeve 22 and the inner frame 23 simultaneously, and can be screwed on the protruding side by nuts 25, thereby fixing the top support block 12 and facilitating loading and unloading.

[0028] It also includes an anti-slip wheel 26, a top block 27, an extension plate 28, a connecting spring 29, a slide rod 30, and a pull tab 31. The anti-slip wheel 26 is connected to the outer front part of the threaded rod 28. The extension plate 28 is connected to the upper middle part of the rear end of the mounting sleeve 22. The bottom side of the extension plate 28 is connected to the top side of the top block 27 via the connecting spring 29. The inner middle part of the extension plate 28 is vertically slidably connected to the outer side of the slide rod 30. The top side of the slide rod 30 is connected to the middle bottom side of the pull tab 31. The bottom side of the slide rod 30 is connected to the middle top side of the top block 27. By holding the pull tab 31, the slide rod 30 slides upward on the inner side of the extension plate 28, which can overcome the elasticity of the connecting spring 29 and lift the top block 27, thereby releasing the restriction on the anti-slip wheel 26 and facilitating the rotation of the threaded rod 28. After releasing the pull tab 31, under the elastic action of the connecting spring 29, the top block 27 can be connected downward and pressed against the anti-slip wheel 26 to prevent the threaded rod 28 from rotating without external force.

[0029] It also includes a bracket 32 ​​and a connecting bearing 33. The outer side of the middle part of the synchronous shaft 4 is connected to the inner side of the connecting bearing 33, and the bottom side of the connecting bearing 33 is connected to the corresponding position on the top side of the worktable 1 via the bracket 32. With the support of the bracket 32, the synchronous shaft 4 can be rotated and constrained by the connecting bearing 33, thereby improving stability.

[0030] In summary, when using a vehicle tire wear resistance testing device, the inner ring side of the tire to be tested is placed outside multiple sets of top support blocks 12. With the adjusting shell 5 fixed, turning the handle 8 causes the threaded rod 7 to rotate. The threaded rod 7 is screwed into the inner threaded sleeve 6, causing the conical block 9 to rotate inward. The conical block 9 then makes contact with multiple sets of contact blocks 10. The sliding constraint of the inner guide frame 11 of the guide sleeve 13 causes the contact blocks 10 to overcome the elastic force of the connecting spring 14 and move radially outward, thereby causing multiple sets of top support blocks 12 to rotate inward. The support blocks 12 move outward together, thus supporting the tire to the corresponding position on the inner side. Contact pad 16 allows for contact with the inner side of the tire, preventing slippage. After adjustment, the inner threaded sleeve 6 and threaded rod 7 are self-lockingly fixed. The friction between the conical block 9 and the contact block 10 is sufficiently strong to be overcome by non-human external force. After inserting the inner bracket 23 of the support block 12 into the mounting sleeve 22, the holes and slots correspond, allowing multiple bolts 24 to simultaneously pass through the mounting sleeve 22 and the inner bracket 23. The protruding side is secured by the nut 25. The screw thread secures the top support block 12, which is supported by the rear of the side plate 17. The sliding rod 30 slides upwards on the inner side of the extension plate 28 via the gripping pull tab 31, overcoming the spring force of the connecting spring 29 to lift the top block 27, thus releasing the restriction on the anti-slip wheel 26 and facilitating the rotation of the threaded rod 18. Tightening the handle 19 rotates the threaded rod 18. The threaded rod 18, screwed into the inner threaded sleeve 34, is slidably constrained by the sliding brackets 21 and constraint sleeves 20 on both sides, and can be moved by the installation mechanism. The test plate 15 moves back and forth and is fixed in the corresponding position by the threaded rod 18 and the internal threaded sleeve 34. Under the elastic action of the connecting spring 29, the top block 27 can be connected downward and pressed against the anti-slip wheel 26 to prevent the threaded rod 18 from rotating without external force. During the test, the rotation drive motor 3 runs and the synchronous shaft 4 rotates stably under the connection of the side plate 2, which in turn drives the tire to rotate. Under the support of the bracket 32, the synchronous shaft 4 can be rotated by the connecting bearing 33, which cooperates with the friction detection of the test plate 15.

[0031] This rotary drive motor 3 is a commercially available device known to those skilled in the art, and is equipped with a corresponding control system to fulfill its function. Here, we are simply using it without making any structural or functional improvements, and we will not go into detail about it here.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the wear resistance of automobile tires, characterized in that, The system includes a workbench (1), a side plate (2), a rotary drive motor (3), a synchronous shaft (4), an adjusting shell (5), an internal threaded sleeve (6), a threaded rod (7), a handle (8), a conical block (9), a contact block (10), a guide frame (11), a top support block (12), a guide sleeve (13), a connecting spring (14), and a test plate (15). The top right front side of the workbench (1) is connected to the side plate (2), and the upper outer side of the side plate (2) is connected to the rotary drive motor (3). The output end of the rotary drive motor (3) is connected to the middle right side of the adjusting shell (5) via the synchronous shaft (4). The inner left side of the adjusting shell (5) is connected to the outer wall of the threaded rod (7) via the internal threaded sleeve (6). The screw connection is as follows: the outer side of the threaded rod (7) is connected to the inner side of the handle (8), and the inner side of the threaded rod (7) is connected to the conical block (9). Multiple sets of guide sleeves (13) are evenly connected to the middle of the adjusting shell (5). The inner wall of the guide sleeve (13) is slidably connected to the outer wall of the guide frame (11). The outer side of the guide frame (11) is connected to the middle of the inner side of the top support block (12). The inner side of the guide frame (11) is connected to the contact block (10). The contact block (10) is in active contact with the conical block (9). The outer side of each set of guide sleeves (13) on the outer side of the adjusting shell (5) is connected to the outer side of the corresponding top support block (12) with a connecting spring (14). A test plate (15) is set on the rear side of the top of the workbench (1) through the adjustment mechanism.

2. The automobile tire abrasion resistance testing device according to claim 1, characterized in that: It also includes contact pads (16), with a set of contact pads (16) connected to the outer side of each set of top support blocks (12).

3. The automobile tire abrasion resistance testing device according to claim 1, characterized in that: The adjustment mechanism includes a second side plate (17), a second threaded rod (18), a second handle (19), a constraint sleeve (20), a slide (21), and a second internal threaded sleeve (34). The top rear side of the workbench (1) is connected to the bottom side of the second side plate (17). The inner side of the upper part of the second side plate (17) is connected to the second internal threaded sleeve (34). The inner wall of the second internal threaded sleeve (34) is screwed to the outer wall of the second threaded rod (18). The rear side of the second threaded rod (18) is connected to the middle front side of the second handle (19). A set of constraint sleeves (20) is connected to the left and right sides of the upper part of the second side plate (17). The inner wall of the constraint sleeve (20) is slidably connected to the outer wall of the slide (21). The second threaded rod (18) and the front side of the slide (21) are connected to the rear side of the test plate (15) through the installation mechanism.

4. The automobile tire wear resistance testing device according to claim 3, characterized in that: The installation mechanism includes an installation sleeve (22), an inner frame (23), bolts (24) and nuts (25). The front side of the threaded rod (18) is rotatably connected to the middle of the rear side of the installation sleeve (22). The front sides of the two sets of slides (21) are respectively connected to the left and right sides of the rear side of the installation sleeve (22). The inner side of the installation sleeve (22) is detachably installed to the outer side of the inner frame (23). The front side of the inner frame (23) is connected to the middle of the rear side of the test plate (15). Multiple sets of bolts (24) pass through the installation sleeve (22) and the inner frame (23) simultaneously, and are detachably screwed on the protruding side by nuts (25).

5. The automobile tire abrasion resistance testing device according to claim 3, characterized in that: It also includes anti-slip wheel (26), top block (27), extension plate (28), connecting spring 2 (29), slide rod (30) and pull plate (31). The anti-slip wheel (26) is connected to the outer front part of the threaded rod 2 (18). The extension plate (28) is connected to the upper middle side of the rear end of the mounting sleeve (22). The bottom side of the extension plate (28) is connected to the top side of the top block (27) via the connecting spring 2 (29). The inner middle part of the extension plate (28) is vertically slidably connected to the outer side of the slide rod (30). The top side of the slide rod (30) is connected to the middle bottom side of the pull plate (31). The bottom side of the slide rod (30) is connected to the middle top side of the top block (27).

6. The automobile tire abrasion resistance testing device according to claim 1, characterized in that: It also includes a bracket (32) and a connecting bearing (33). The outer side of the middle part of the synchronous shaft (4) is connected to the inner side of the connecting bearing (33), and the bottom side of the connecting bearing (33) is connected to the corresponding position on the top side of the worktable (1) via the bracket (32).

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