Tire wear resistance detection device

Abstract

The utility model belongs to the field of tire production and detection, and particularly discloses a tire wear resistance detection device which comprises a clamping assembly used for clamping a tire, a driving assembly used for driving the clamping assembly to drive the tire to move and a detection assembly used for detecting the wear resistance of the tire. The clamping assembly comprises a first sliding plate arranged in a sliding mode, a rotating disc rotationally connected to the first sliding plate and a plurality of clamping jaws distributed in the circumferential direction of the rotating disc, the clamping jaws are slidably connected to the rotating disc in the radial direction of the rotating disc, telescopic rods are fixed to the clamping jaws, rolling wheels are rotationally connected to the telescopic rods, and the rotating axis of the rolling wheels is parallel to the rotating axis of the rotating disc. The detection assembly comprises a second sliding plate arranged in a sliding mode and a plurality of detection plates installed on the second sliding plate side by side, detection layers are detachably connected to the detection plates, and the materials of the detection layers on the multiple detection plates are different. By adopting the scheme of the utility model, the problem that the wear resistance detection device in the prior art is not suitable for wear resistance detection of tires with various sizes and specifications can be solved.

Description

Technical Field

[0001] The utility model belongs to the field of tire production detection, and specifically relates to a tire wear resistance performance detection device. Background Art

[0002] Tires are important parts of cars. When a car is driving, the tires are always in contact with the ground and will continue to wear. If the tires are excessively worn, problems such as performance degradation and insufficient grip will occur, which is not conducive to the safe driving of the car. Therefore, after the production of car tires is completed, it is often necessary to use wear resistance testing devices to test the wear resistance of the tires.

[0003] When using the existing tire wear test device, the tire is generally placed on the test wheel, and the tire is rotated quickly by rotating the test wheel, so as to perform wear test on the tire. For example, patent CN202321483590.9 discloses a tire wear test tool, which simulates different forms of road surface structures by setting two sets of friction components and tire contact for testing. However, there are still some problems: the friction component is hingedly designed. Although the friction component can be rotated to make the friction area contact the outer wall of the tire, when the tire size specifications vary greatly, after the friction component is rotated, it is difficult for the friction area to completely fit the outer wall of the tire, which is not suitable for wear test of tires of various sizes. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a tire wear resistance testing device to solve the problem that the prior art wear resistance testing device is not suitable for the wear resistance testing of tires of various sizes and specifications.

[0005] According to the embodiment of the utility model, the utility model adopts the following technical solution:

[0006] A tire wear resistance testing device comprises a clamping assembly for clamping a tire, a driving assembly for driving the clamping assembly to drive the tire to move, and a testing assembly for testing the tire wear resistance, wherein the clamping assembly comprises a first sliding plate arranged for sliding, a turntable rotatably connected to the first sliding plate, and a plurality of clamping jaws distributed along the circumference of the turntable, the clamping jaws are connected to the turntable radially and slidably along the turntable, a telescopic rod is fixed to the clamping jaw, a roller is rotatably connected to the telescopic rod, the rotation axis of the roller is parallel to the rotation axis of the turntable, and an embedding groove for the roller to be embedded is provided on the clamping jaw; the testing assembly comprises a second sliding plate arranged for sliding and a plurality of testing plates installed in parallel on the second sliding plate, the arrangement direction of the plurality of testing plates is consistent with the sliding direction of the second sliding plate, the sliding direction of the second sliding plate is perpendicular to the sliding direction of the first sliding plate, and the testing plates are all detachably connected with a testing layer for generating friction with the tire, and the materials of the testing layers on the plurality of testing plates are different.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] In this solution, the tire is clamped by the clamping claws and driven to rotate, so that the tire moves relative to the test plate, simulating the process of the tire driving on the road, and then the degree of tire wear is observed, thereby realizing the wear resistance performance test of the tire.

[0009] Among them, by sliding the clamping jaws relative to the turntable, tires of various sizes and specifications can be adapted for clamping. When the roller is embedded in the embedding groove, the clamping jaw can clamp the tire well and drive the tire to rotate. When the roller extends out of the embedding groove, the tire and the roller are in contact, so that the tire can rotate relative to the turntable. The gripping ability of the tire can be judged to a certain extent through the clamping force between the roller and the tire and the relative movement between the tire and the detection plate.

[0010] By sliding the first slide plate, the tires of different sizes and specifications can be adjusted to abut against the detection plate, and the pressure of the tire relative to the detection plate can be adjusted according to the detection requirements, thereby achieving more accurate detection. In addition, there are multiple detection plates, and the materials of the detection layers are different, which can simulate a variety of different road conditions. By sliding the second slide plate, different detection plates and tires can be adjusted to abut against each other for detection, meeting a variety of detection requirements.

[0011] Furthermore, the detection layer is provided with protrusions or depressions.

[0012] Furthermore, the detection board is detachably connected to the second slide plate.

[0013] Furthermore, a plurality of flexible anti-skid protrusions are fixed on the clamping surface of the clamping jaws.

[0014] Furthermore, the detection plate includes a mounting portion for connecting with the second slide plate and a positioning portion arranged on the mounting portion, the length and width of the positioning portion are smaller than the mounting portion, and the detection layer is sleeved on the positioning portion.

[0015] Furthermore, a plurality of positioning posts are fixed on the positioning portion, and positioning grooves for the positioning posts to be inserted are provided on the detection layer.

[0016] Furthermore, the detection component also includes a sliding third slide plate, the second slide plate is slidably connected to the third slide plate, the sliding direction of the third slide plate is perpendicular to the rotation axis of the turntable, and the sliding direction of the third slide plate is also perpendicular to the sliding direction of the first slide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0018] Figure 2 for Figure 1 Enlarged view of part A.

[0019] In the figure: 1. first slide plate; 2. turntable; 3. clamping claw; 4. embedding groove; 5. third slide plate; 6. second slide plate; 7. mounting portion; 8. detection layer; 9. positioning portion; 10. positioning column; 11. detection plate; 12. protrusion; 13. telescopic rod; 14. roller; 15. anti-slip bump. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below with reference to the accompanying drawings, and specific implementation methods are given.

[0021] like Figure 1 As shown, the tire wear resistance testing device includes a frame, the frame is provided with a clamping assembly for clamping the tire, a driving assembly for driving the clamping assembly to drive the tire to move, and a detection assembly for detecting the tire wear resistance, the clamping assembly includes a first slide plate 1 that is slidably arranged, a turntable 2 that is rotatably connected to the first slide plate 1, and a plurality of clamping claws 3 distributed along the circumference of the turntable 2, and a cylinder for driving the first slide plate 1 to slide is fixed on the frame. In this embodiment, the first slide plate 1 is vertically slidably connected to the frame, and the rotation axis of the turntable 2 is perpendicular to the sliding direction of the first slide plate 1. Figure 1 Taking the direction shown in as an example, the rotation axis of the turntable 2 is in the left-right direction, and a motor for driving the turntable 2 to rotate is fixed on the first slide plate 1. The clamping jaws 3 are connected to the turntable 2 by sliding along the radial direction of the turntable 2, and the clamping jaws 3 are used to clamp the tire from the inner side of the tire hub. In this embodiment, the clamping jaws 3 with a clamping function in the prior art can be selected, and the turntable 2 is fixed with a cylinder for driving the clamping jaws 3 to slide.

[0022] Combination Figure 2 As shown, a telescopic rod 13 is fixed on the clamping jaw 3, and a roller 14 is rotatably connected to the telescopic rod 13. The rotation axis of the roller 14 is parallel to the rotation axis of the turntable 2. An embedding groove 4 for the roller 14 to be embedded is provided on the clamping jaw 3. Specifically, the telescopic rod 13 is fixed in the embedding groove 4, and the telescopic rod 13 can directly select an electric telescopic rod in the prior art.

[0023] The detection assembly includes a second slide plate 6 which is slidably arranged and a plurality of detection plates 11 which are installed in parallel on the second slide plate 6. The arrangement direction of the plurality of detection plates 11 is consistent with the sliding direction of the second slide plate 6. The sliding direction of the second slide plate 6 is perpendicular to the sliding direction of the first slide plate 1. Figure 1 Taking the direction shown in as an example, the second slide plate 6 is connected to the frame by sliding along the left-right direction. In this embodiment, two detection plates 11 are taken as an example. The two detection plates 11 are also arranged along the left-right direction. A cylinder for driving the second slide plate 6 to slide is fixed on the frame. By sliding the second slide plate 6, the detection plate 11 can be driven to move under the tire, switching the detection plate 11 used for contact detection with the tire.

[0024] The detection plate 11 is detachably connected with a detection layer 8 for generating friction with the tire. The detection layers 8 on the multiple detection plates 11 are made of different materials. Specifically, the detection layer 8 can be made of materials such as asphalt boards or cement boards that simulate road materials. The detection plate 11 includes a mounting portion 7 for connecting with the second slide plate 6 and a positioning portion 9 arranged on the mounting portion 7. The mounting portion 7 and the positioning portion 9 are both rectangular. The length and width of the positioning portion 9 are smaller than the mounting portion 7. The detection layer 8 is sleeved on the positioning portion 9. A number of positioning posts 10 are fixed on the positioning portion 9, and a positioning groove for the positioning posts 10 to be inserted is provided on the detection layer 8.

[0025] When in use, the tire is placed on the clamping jaws 3, and the position of the clamping jaws 3 is adjusted so that the clamping jaws 3 clamp the tire from the inner side of the tire, and in the initial state, the roller 14 is embedded in the embedding groove 4. The first slide plate 1 is slid so that the tire and the detection plate 11 located below it are against each other, and then the turntable 2 is rotated, the turntable 2 drives the tire to rotate, and the tire moves relative to the detection plate 11, simulating the process of the tire driving on the road, and the staff observes the wear degree of the tire based on this.

[0026] After testing the wear resistance of the tire relative to a testing plate 11, the second slide plate 6 can be slid to switch a different testing plate 11 under the tire and test again, or the testing layer 8 can be replaced and tested again.

[0027] In addition, after the roller 14 is driven to extend out of the embedded groove 4 by the telescopic rod 13, the tire and the roller 14 are in contact, so that the tire can rotate relative to the turntable 2. The tire's gripping ability can be judged to a certain extent through the contact force between the roller 14 and the tire and the relative movement between the tire and the detection plate 11. Specifically, when the contact force between the roller 14 and the inner side of the tire is fixed, if the tire's gripping ability is insufficient, the tire can rotate with the turntable 2, but if the tire's gripping ability is strong, the tire may rotate relative to the turntable 2. Based on this observation, the staff can make a preliminary judgment on the tire's gripping ability to a certain extent.

[0028] In another embodiment of the present invention, the detection layer 8 is provided with a protrusion 12 or a depression. Figure 1 Taking the shown example, in this embodiment, taking the protrusion 12 provided on the detection layer 8 as an example, different road conditions can be simulated through the design of the protrusion 12 and the depression, such as the presence of speed bumps, potholes, etc. on the road surface. Since the detection layer 8 can be replaced, the flat road conditions or the road conditions with protrusions 12 or depressions can be simulated and detected, thereby improving the detection accuracy.

[0029] In another embodiment of the present invention, the detection plate 11 is detachably connected to the second slide plate 6 . Specifically, the mounting portion 7 of the detection plate 11 is bolted to the second slide plate 6 , which also facilitates replacement and maintenance of the detection plate 11 .

[0030] In another embodiment of the utility model, a plurality of flexible anti-skid protrusions 15 are fixed on the clamping surface of the clamping jaw 3. Specifically, the anti-skid protrusions 15 can be made of rubber blocks. Through the design of the anti-skid protrusions 15, the contact area between the clamping jaw 3 and the tire and the friction of the contact surface are increased to better clamp the tire.

[0031] In another embodiment of the present invention, Figure 1 As shown, the detection assembly also includes a sliding third slide plate 5. Specifically, the third slide plate 5 is slidably connected to the frame, a cylinder for driving the third slide plate 5 to slide is fixed to the frame, and the second slide plate 6 is slidably connected to the third slide plate 5. The sliding direction of the third slide plate 5 is perpendicular to the rotation axis of the turntable 2. Through the design of the third slide plate 5, the turntable 2 can be kept stationary, that is, the tire on the turntable 2 can be kept stationary, and the third slide plate 5 drives the detection plate 11 located on the second slide plate 6 to slide, and the relative movement of the tire and the detection plate 11 can also be achieved. In this embodiment, the wear resistance performance of the local area of ​​the tire can be tested by adjusting the contact position between the tire and the detection plate 11 and then moving the detection plate 11.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A tire wear resistance testing device, comprising a clamping assembly for clamping a tire, a driving assembly for driving the clamping assembly to drive the tire to move, and a testing assembly for testing the tire wear resistance, characterized in that: The clamping assembly includes a first sliding plate arranged for sliding, a turntable rotatably connected to the first sliding plate, and a plurality of clamping jaws distributed along the circumference of the turntable, the clamping jaws are connected to the turntable in a radially sliding manner, a telescopic rod is fixed to the clamping jaw, a roller is rotatably connected to the telescopic rod, the rotation axis of the roller is parallel to the rotation axis of the turntable, and an embedding groove for the roller to be embedded is provided on the clamping jaw; the detection assembly includes a second sliding plate arranged for sliding and a plurality of detection plates installed in parallel on the second sliding plate, the arrangement direction of the plurality of detection plates is consistent with the sliding direction of the second sliding plate, the sliding direction of the second sliding plate is perpendicular to the sliding direction of the first sliding plate, and the detection layers for generating friction with the tire are detachably connected to the detection plates, and the detection layers on the plurality of detection plates are made of different materials.

2. The tire wear resistance testing device according to claim 1, characterized in that: The detection layer is provided with protrusions or depressions.

3. The tire wear resistance testing device according to claim 2, characterized in that: The detection plate is detachably connected to the second slide plate.

4. The tire wear resistance testing device according to claim 1, characterized in that: A plurality of flexible anti-skid protrusions are fixed on the clamping surface of the clamping jaws.

5. The tire wear resistance testing device according to claim 1, characterized in that: The detection plate comprises a mounting portion for connecting with the second slide plate and a positioning portion arranged on the mounting portion, the length and width of the positioning portion are smaller than the mounting portion, and the detection layer is sleeved on the positioning portion.

6. The tire wear resistance testing device according to claim 5, characterized in that: A plurality of positioning posts are fixed on the positioning part, and positioning grooves for inserting the positioning posts are provided on the detection layer.

7. The tire wear resistance testing device according to claim 1, characterized in that: The detection assembly also includes a sliding third slide plate, the second slide plate is slidably connected to the third slide plate, the sliding direction of the third slide plate is perpendicular to the rotation axis of the turntable, and the sliding direction of the third slide plate is also perpendicular to the sliding direction of the first slide plate.

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