Multi-angle obstacle strip mounting device for tire clean test

Abstract

The utility model relates to the field of testing of tire testing machines, in particular to a multi-angle obstacle strip mounting device for a tire clean test. Comprising a fixing frame, a first connecting disc, a pressing block and at least one fixing bolt. The whole fixing frame is of a [-shaped structure. The lower plate is provided with a plurality of round holes, the fixing bolts are in one-to-one correspondence with the round holes, and the fixing bolts are inserted into the round holes; the fixing bolt is sleeved with a nut, and tensioning adjustment is conducted on the fixing bolt by rotating the nut. The pressing block is detachably connected with the first connecting disc, a fixing groove for containing a barrier strip is formed in the lower surface of the pressing block, and the lower surface of the pressing block is in an arc shape. A rubber strip fixing groove is formed in the lower surface of the barrier strip and used for containing a rubber strip. According to the rotary drum punching device, the rotary drum punching link is abandoned, the manpower and material resource cost needed by rotary drum punching is saved, and damage to the integrity of the rotary drum due to punching is avoided.

Description

Technical Field

[0001] This utility model relates to the field of tire testing machine testing, specifically to a multi-angle barrier strip installation device for tire cleat testing. Background Technology

[0002] As the only medium in contact between a vehicle and the ground, the dynamic performance of tires directly affects the overall vehicle's NVH characteristics, driving safety, and comfort. Against the backdrop of the rapid popularization of new energy vehicles and the iterative development of intelligent driving technology, international tire testing standards are increasingly stringent regarding the cleat impact test. This test, by simulating a typical vehicle impacting a speed bump or road protrusion at a certain speed, can accurately assess the tire's vibration absorption performance and impact force transmission characteristics, and is a core verification step in tire forward development.

[0003] Currently, the mainstream CLEAT impact test uses a barrier strip mounted laterally on a pre-drilled drum (drum cross-section as shown in the image). Figure 1 As shown, the balance blocks are symmetrically installed on the other side of the pre-drilled drum surface and then secured with bolts. However, when it comes to angled installation, the curvature of the drum surface must be considered, which means that the baffle strips need to be redesigned, and most importantly, the holes in the drum surface need to be re-drilled. This traditional baffle strip installation method exposes many problems that urgently need to be solved.

[0004] 1) Drilling holes in the drum surface beforehand to fix the barrier strips directly damages the original integrity of the drum surface. As the core component of the testing equipment, the damage to the drum's integrity not only shortens the equipment's lifespan but also significantly increases maintenance costs. In the long run, frequent replacement of damaged drums will undoubtedly impose a heavy economic burden on the company.

[0005] 2) The barrier strips are mostly made of hard metal, making it difficult to achieve a tight fit with the drum surface during installation. In actual impact testing, this loose fit can easily damage the drum surface. Damage to the drum surface not only causes significant losses for the company but also greatly reduces the accuracy of the test results, thus affecting the reliability of tire performance evaluation and causing considerable misguidance in tire research and development.

[0006] 3) The challenges are even more severe when existing CLEAT testing machines need to be equipped with barrier strips of different angles for testing. Due to the curvature of the drum surface, it is difficult to achieve a precise fit between the newly processed barrier strips and the drum contact surface. This not only consumes a lot of time and manpower for repeated adjustments, but also seriously affects the testing schedule, making it difficult for companies to quickly respond to market demands for new tire performance testing, putting them at a disadvantage in the fierce market competition. Utility Model Content

[0007] This utility model provides a multi-angle barrier strip installation device for tire cleat testing. Its purpose is to install barrier strips at multiple angles without drilling holes in the drum surface, ensuring a firm assembly and tight fit with the drum surface. This solves the problems of existing technologies, such as drilling damage to the drum surface and poor fit between the barrier strip and the drum curvature during installation.

[0008] To achieve the above objectives, the technical solution of this utility model is as follows:

[0009] This utility model provides a multi-angle barrier strip installation device for tire Cleat testing, including a fixing frame, a connecting plate, a pressure block and at least one fixing bolt;

[0010] The fixing frame has an overall U-shaped structure, including an upper plate, side plates, and a lower plate; a connecting plate is disposed on the lower surface of the upper plate; the lower plate has several circular holes, and the fixing bolts correspond one-to-one with the circular holes, and the fixing bolts are inserted into the circular holes; nuts are fitted on the fixing bolts, and the tension of the fixing bolts is adjusted by rotating the nuts; the pressure block is detachably connected to the connecting plate, and the lower surface of the pressure block is provided with a fixing groove for fixing one end of the barrier strip, and the lower surface of the pressure block is arc-shaped;

[0011] The lower surface of the barrier strip is provided with a rubber strip fixing groove along its length, and the rubber strip fixing groove is used to accommodate the rubber strip.

[0012] Furthermore, a rubber gasket is attached to the lower surface of the pressure block.

[0013] Furthermore, the top-view projection shape of the obstacle strip is a parallelogram, and the bottom of the obstacle strip adopts an arc design.

[0014] Furthermore, the cross-sectional shape of the rubber strip can be semi-circular, rectangular, triangular, or arc-shaped, and the rubber strip fixing groove matches the rubber strip.

[0015] Furthermore, the connecting plate is fixed to the upper plate of the fixing frame by bolts or clips.

[0016] Furthermore, the fixing method between the connecting disc and the pressure block can be a method of interlocking grooves and protrusions or a snap-fit ​​connection.

[0017] Furthermore, the lower surface of the connecting disc is provided with a groove, and the upper surface of the pressure block is provided with a protrusion that matches the groove of the connecting disc.

[0018] Furthermore, the upper surface of the pressure block is provided with a groove that matches the connecting disc, and the connecting disc matches the groove.

[0019] Furthermore, the top-view projection shape of the groove can be a circle, triangle, rectangle, or other polygons.

[0020] A multi-angle barrier installation device for tire Cleat testing includes a fixing frame, a second connecting plate, and at least one fixing bolt. The lower plate of the fixing frame is provided with circular holes corresponding to the fixing bolts. The bottom of the second connecting plate is arc-shaped, and a second rubber gasket is attached to the lower surface of the second connecting plate. Two nuts are fitted onto the fixing bolts. The balance block is provided with bolt holes corresponding to the fixing bolts, and the balance block is fixed on the fixing bolts.

[0021] The beneficial effects achieved by this utility model are as follows:

[0022] 1) In terms of ease of installation and cost control, this device demonstrates outstanding advantages. Its installation and disassembly process is extremely simple, breaking away from the limitations of traditional methods that require drilling holes in the drum surface. It allows for flexible installation of barrier strips at multiple angles of the drum. This innovative design completely eliminates the need for drilling holes in the drum, significantly reducing the manpower and material costs associated with drilling and preventing damage to the drum's integrity. This extends the lifespan of this core testing equipment from the source, reduces long-term equipment maintenance and replacement costs, and saves companies substantial financial investment.

[0023] 2) From the perspective of test stability and equipment protection, the device fully considers the details of contact with the drum. The part of the barrier strip that contacts the drum surface is carefully covered with a rubber gasket. This ingenious design greatly improves the tightness of the fit between the barrier strip and the drum surface. At the same time, the device firmly restrains the barrier, ensuring that the barrier strip will not shift during the test. In this way, not only is the stability of the test process guaranteed, making the test data more reliable, but damage to the drum surface caused by barrier strip displacement or poor fit is also effectively avoided, further maintaining the good condition of the drum and improving the durability of the test equipment.

[0024] 3) The device also performs exceptionally well in responding to changing testing requirements. When additional obstacle strips at different angles are needed, the operation becomes simple and convenient. Unlike traditional methods, there's no need to spend considerable effort considering the curvature alignment of the new obstacle strip with the drum's contact surface, significantly reducing test preparation time and improving testing efficiency. Companies can quickly respond to market demands for performance testing of new tires at different angles, gaining a competitive edge in the fierce market competition, bringing products that meet market needs to market faster, and enhancing their market competitiveness and industry influence.

[0025] In summary, this utility model, through innovative designs in terms of installation convenience, testing stability, and adaptability to changing testing requirements, comprehensively improves the efficiency and quality of cleat impact testing, bringing a more scientific, reasonable, and efficient solution to the field of tire performance testing. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a cross-sectional diagram of the drum; in the diagram, the dotted line represents the axis of the drum.

[0028] Figure 2 This is a structural diagram of the new type of fixed barrier strip.

[0029] Figure 3 This is a structural diagram of the new type of fixed balance block.

[0030] Figure 4 This is a schematic diagram of the barrier strip structure of this utility model; wherein, 4a is the left view of the barrier strip, 4b is the front view of the barrier strip, and 4c is the top view of the barrier strip.

[0031] Figure 5 This is a schematic diagram of the rubber strip structure of this utility model; wherein, 5a is the left view of the rubber strip, 5b is the front view of the rubber strip, and 5c is the top view of the rubber strip.

[0032] Figure 6 This is the main view of the combined state of the obstacle strip and the rubber strip.

[0033] Figure 7 This is a schematic diagram of the fixing frame structure of the utility model; wherein, 7a is the left view of the fixing frame, 7b is the front view of the fixing frame, and 7c is the top view of the fixing frame.

[0034] Figure 8 This is a schematic diagram of the connecting plate of this utility model; wherein, 8a is a front view of the connecting plate and 8b is a top view of the connecting plate.

[0035] Figure 9 This is the front view of the new type of fixing bolt assembly.

[0036] Figure 10 This is a schematic diagram of the pressing block structure of this utility model; wherein, 10a is the left view of the pressing block, 10b is the front view of the pressing block, and 10c is the top view of the pressing block.

[0037] Figure 11 This is a schematic diagram of the structure of the rubber gasket of this utility model; wherein, 11a is a front view of the rubber gasket and 11b is a top view of the rubber gasket.

[0038] Figure 12 This is a schematic diagram of the combination of a fixing bolt and a nut of the present invention; wherein, 12a is a top view of the fixing bolt, 12b is a front view of the fixing bolt, and 12c is a front view of the nut.

[0039] Figure 13 This is a schematic diagram of the combination of the second fixing bolt and the second nut of this utility model; wherein, 13a is a top view of the second fixing bolt, 13b is a front view of the second fixing bolt, and 13c is a front view of the second nut.

[0040] Figure 14 This is a schematic diagram of the combination of fixing bolt three, nut three, and nut four of this utility model; wherein, 14a is a top view of fixing bolt three, 14b is a front view of fixing bolt three, and 14c is a front view of nut three and nut four.

[0041] Figure 15 This is a schematic diagram of the combination of fixing bolt four, nut five, and nut six of this utility model; wherein, 15a is a top view of fixing bolt four, 15b is a front view of fixing bolt four, and 15c is a front view of nut five and nut six.

[0042] Figure 16 This is a schematic diagram of the circular rubber gasket structure of the present invention; wherein, 16a is the front view of the circular rubber gasket and 16b is the top view of the circular rubber gasket.

[0043] Figure 17 This is a schematic diagram of the balance block structure of this utility model; wherein, 17a is the left view of the balance block, 17b is the front view of the balance block, and 17c is the top view of the balance block.

[0044] Figure 18 This is a schematic diagram of the second connecting plate of the present invention; wherein, 18a is the left view of the second connecting plate, 18b is the front view of the second connecting plate, and 18c is the top view of the second connecting plate.

[0045] Figure 19 This is a schematic diagram of the second rubber gasket structure of the present invention; wherein, 19a is the front view of the second rubber gasket and 19b is the top view of the second rubber gasket.

[0046] In the diagram: 1. Obstacle strip; 2. Rubber strip; 3. Fixing frame; 4. Connecting plate one; 5. Pressure block; 6. Fixing bolt one; 7. Nut one; 8. Fixing bolt two; 9. Nut two; 10. Balance block; 11. Fixing bolt three; 12. Nut three; 13. Nut four; 14. Fixing bolt four; 15. Nut five; 16. Nut six; 17. Fixing bolt group; 18. Connecting plate two; 19. Circular rubber pad; 20. Rubber pad one; 21. Rubber pad two; 22. Rotary drum. Detailed Implementation

[0047] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. 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 protection scope of this utility model.

[0048] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0049] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0050] This invention provides a multi-angle barrier strip mounting device and a balance block mounting device for tire cleat testing, used to assist in the installation of barrier strip 1 and balance block 10, respectively. The barrier strip 1 and balance block 10 are symmetrically mounted on both sides of the surface of the drum 22. The barrier strip 1 is used for tire cleat testing, and the balance block 10 is responsible for ensuring the balance of the drum 22 during rotation. This invention enables multi-angle installation of the barrier strip 1 and the balance block 10 without drilling holes in the surface of the drum 22, ensuring a secure assembly and tight fit with the drum surface without damaging the surface of the drum 22. Adding barrier strips 1 at other angles can also be completed quickly and easily, without worrying about the fit between the newly processed barrier strip 1 and the curved contact surface of the drum 22.

[0051] Example 1

[0052] When used to fix the barrier strip 1, the multi-angle barrier strip mounting device includes a fixing frame 3, a connecting plate 4, a pressure block 5, and at least one fixing bolt, as shown in the figure. Figure 2 , 4 As shown in Figure 15.

[0053] The fixing frame 3 has an overall U-shaped structure, including an upper plate, side plates, and a lower plate; the connecting plate 4 is disposed on the lower surface of the upper plate; the lower plate has several circular holes, and the fixing bolts correspond one-to-one with the circular holes, the fixing bolts are inserted into the circular holes, and the heads of the fixing bolts are located between the upper plate and the lower plate; a nut is fitted onto the fixing bolt, the nut is located between the head of the fixing bolt and the lower plate, the nut rests on the upper surface of the lower plate, and the tension of the fixing bolt is adjusted by rotating the nut; the pressure block 5 is detachably connected to the connecting plate 4, and the lower surface of the pressure block 5 is provided with a fixing groove, the fixing groove is used to fix one end of the obstacle strip 1 (i.e., each end of the obstacle strip 1 requires a pressure block 5 for fixing and limiting), the inclination angle of the fixing groove is 0 to 60 degrees; the inclination angle of the fixing groove refers to the angle between the axis of the fixing groove and the long side of the pressure block 5 (e.g., ...). Figure 10 As shown in c), 0 degrees means the barrier strip 1 is horizontally positioned, and the other angles are inclined. The lower surface of the pressure block 5 is arc-shaped, conforming to the surface curvature of the drum 22. A rubber pad 20 is attached to the lower surface of the pressure block 5. It is worth noting that the pressure block 5 with a fixing groove for the appropriate tilt angle needs to be selected according to the required tilt angle of the barrier strip 1 to be installed; that is, this embodiment requires multiple pressure blocks 5, and the tilt angle of the fixing groove of each pressure block 5 is different.

[0054] When assembling the barrier strip 1, two sets of multi-angle barrier strip installation devices are required and fixed on both sides of the drum 22 respectively to press and fix the barrier strip 1 to the surface of the drum 22.

[0055] In this embodiment, there are two fixing bolts, named fixing bolt one 6 and fixing bolt two 8 respectively. The number of fixing bolts can also be other. The number of holes in the lower plate is equal to the number of fixing bolts, meaning the lower plate in this embodiment has two holes. Fixing bolt one 6 and fixing bolt two 8 are inserted into the two holes respectively. The heads of fixing bolt one 6 and fixing bolt two 8 are both located between the upper and lower plates. A nut one 7 is fitted onto fixing bolt one 6, and a nut two 9 is fitted onto fixing bolt two 8. Both nuts one 7 and two 9 are located between the upper and lower plates.

[0056] The top-view projection shape of the obstacle strip 1 is a parallelogram. The obstacle strip 1 is made of metal. The lower surface of the obstacle strip 1 is provided with a rubber strip fixing groove along the length direction. The rubber strip fixing groove extends from one end of the obstacle strip 1 to the other end and is used to accommodate the rubber strip 2. The bottom of the obstacle strip 1 adopts an arc design, which can meet the curvature of the surface of the drum 22 when placed at multiple angles. For the obstacle strip 1, different lengths and arcs need to be designed for different angles to ensure that the left and right sides are flush with the outer edge of the drum 22.

[0057] The length of the rubber strip 2 is the same as that of the barrier strip 1. The cross-sectional shape of the rubber strip 2 can be designed in various ways, such as semi-circular, rectangular, triangular, or arc-shaped. The rubber strip 2 matches the rubber strip fixing groove of the barrier strip 1, and is embedded in the rubber strip fixing groove of the barrier strip 1. The rubber strip 2 is used to conform to the curved surface of the drum 22. In traditional designs, the barrier strip 1 is in direct contact with the drum 22. However, since it is difficult to achieve a perfect fit between the barrier strip 1 and the curved surface of the drum 22, gaps are likely to appear between them. When the tire collides with the barrier strip 1, the barrier strip 1 will shift at the gap, and then impact the drum 22 under the push of the tire. Over time, this is very likely to cause damage to the surface of the drum 22. The design of the rubber strip 2 in this patent, which conforms to the curved surface of the drum 22, can effectively avoid the above problems and ensure the stability and integrity of the drum 22 during use.

[0058] The connecting disc 4 is fixed to the upper plate of the fixing frame 3 by bolts or clips (not shown in the figure, this connection method is common and easy to implement by those skilled in the art, and will not be described in detail here), preferably by bolt fixing; in this embodiment, taking bolt fixing as an example: the upper plate of the fixing frame 3 is provided with a number of bolt holes, preferably four bolt holes, and the connecting disc 4 is provided with corresponding bolt holes, specifically, the connecting disc 4 is provided with four screw holes, all of which are provided with internal threads that match the fixing bolt group 17, so as to achieve fixing; during assembly, the fixing bolt group 17 passes through the bolt holes to fix the connecting disc to the lower surface of the upper plate; wherein, the fixing bolt group 17 is a number of bolts of the same type.

[0059] The diameter of the two round holes on the lower plate of the fixing frame 3 is larger than the diameter of the bolt hole of the connecting plate 4, and the four screw holes on the upper plate of the fixing frame 3 are located between the two round holes on the lower plate.

[0060] The connection between the connecting disc 4 and the pressure block 5 can be fixed by either a groove and a protrusion engaging with each other or by a snap-fit ​​connection. It is recommended to use the groove and protrusion engaging method, as this makes replacing the pressure block 5 more convenient. This embodiment uses this method as an example for explanation. Snap-fit ​​connections are more common and easily implemented by those skilled in the art, and will not be elaborated upon here.

[0061] Furthermore, the lower surface of the connecting disc 4 is provided with a groove, and the upper surface of the pressure block 5 is provided with a protrusion that matches the groove of the connecting disc 4; during assembly, the protrusion is embedded into the groove to achieve the purpose of fastening and fixing.

[0062] Furthermore, the upper surface of the pressure block 5 is provided with a groove that matches the connecting disc 4, and the connecting disc 4 matches the groove; when fixing the pressure block 5, align the groove with the connecting disc 4, and fasten the pressure block 5 onto the connecting disc 4 to achieve fixation; this connection method is recommended to be used first, and this article will use this connection method as an example.

[0063] The top-view projection shape of the groove can be a circle, triangle, rectangle, or other polygons, etc. The attached figure uses a circle as an example, but this should not be regarded as a limitation and should be selected according to the actual situation.

[0064] The bottom of the pressure block 5 is provided with a rectangular chamfered fixing groove that can be inclined and penetrated at multiple angles to accommodate the inclined barrier strip 1; the bottom of the pressure block 5 is arc-shaped, conforming to the surface curvature of the drum 22, and a rubber pad is attached to the lower surface.

[0065] The rubber gasket 20 is divided into two parts, which are respectively set on both sides of the fixing groove of the pressure block 5.

[0066] Example 2

[0067] When used to fix the balance block 10, the balance block mounting device includes a fixing frame 3, a connecting plate 2 18, and at least one fixing bolt. The balance block mounting device is derived from a multi-angle obstacle strip mounting device. The lower plate of the fixing frame (3) has circular holes corresponding to the fixing bolts. Two nuts are fitted onto each fixing bolt. The balance block 10 has bolt holes corresponding to the fixing bolts. Figure 3 , 16 As shown in ~19.

[0068] The structure of the fixing frame 3 is exactly the same as that in Embodiment 1, and will not be described again in this embodiment.

[0069] The top-view projection shape of the connecting plate 2 18 and the connection method between the connecting plate 2 18 and the upper plate of the fixing frame 3 are exactly the same as those in Embodiment 1, and will not be repeated in this embodiment. The difference is that the bottom of the connecting plate 2 18 is arc-shaped to fit the curvature of the surface of the drum 22; a rubber gasket 21 is attached to the lower surface of the connecting plate 2 18 to ensure complete fit with the surface of the drum 22 without any gap.

[0070] In this embodiment, there are two fixing bolts, which are named fixing bolt three 11 and fixing bolt four 14 respectively.

[0071] Nuts 12 and 13 are fitted onto the fixing bolt 11. The internal threads of nuts 12 and 13 are in opposite directions. During assembly, nuts 12 and 13 are positioned between the balance block 10 and the lower plate of the fixing frame 3. Nut 12 rotates upward to engage with the head of the fixing bolt 11 and clamp the balance block 10. Nut 13 rotates downward to press against the lower plate, lifting the balance block 10 and reducing the distance between the head of the fixing bolt 11 and the upper plate of the fixing frame 3. With the cooperation of the connecting disc 18, the balance block mounting device is fixed to the edge of the drum 22.

[0072] The fixing bolt 4 14 is fitted with nuts 5 15 and 6 16, and the internal threads of nuts 5 15 and 6 16 are turned in opposite directions. During assembly, the way nuts 5 15 and 6 16 are set on the fixing bolt 4 14 is the same as the way nuts 3 12 and 4 13 are set on the fixing bolt 3 11, which will not be described again.

[0073] The balance block 10 is provided with two bolt holes that match the circular holes on the lower plate of the fixing frame 3. Fixing bolts 11 and 14 pass through the two bolt holes and are fastened. The upper surface of the balance block 10 is provided with two circular grooves, which are used to accommodate the heads of fixing bolts 11 and 14, respectively, to ensure that the upper surface of the heads is flush with the upper surface of the balance block 10. The balance block 10 can fit tightly against the inner edge of the drum 22.

[0074] During tire cleat testing, a barrier bar 1 and two balance blocks 10 are generally required. The two balance blocks 10 are fixed to both sides of the drum using two sets of balance block mounting devices.

[0075] The total mass of the two balance blocks 10 and the two sets of balance block mounting devices is equal to the total mass of the one obstacle bar 1 and the two sets of multi-angle obstacle bar mounting devices.

[0076] The upper surface of the heads of the fixing bolts 6, 8, 11, and 14 is a smooth circle, and each has a circular rubber pad 19 attached to it.

[0077] Specifically, the implementation method of this utility model is as follows:

[0078] 1) The barrier strip 1 and the rubber strip 2 are tightly glued together. The barrier strip 1 is placed at a certain angle according to the experimental requirements to ensure that the two ends of the barrier strip 1 are aligned with the end face of the drum 22 of the CLEAT tester.

[0079] 2) Select a pressure block 5 with a suitable tilt angle fixing groove, tightly attach the rubber gasket 20 to the lower surface of the clamping pressure block 5, fasten the fixing groove of the clamping pressure block 5 onto the barrier strip 1 and press it firmly onto the surface of the drum 22; fix the connecting plate 4 to the lower surface of the upper plate of the clamping bracket 3 by fixing bolt group 17, and then align the groove on the upper surface of the pressure block 5 to complete the combination of the connecting plate 4 and the pressure block 5;

[0080] 3) Tightly attach the circular rubber pad 19 to the upper surface of the head of fixing bolt 6 and fixing bolt 8. Screw nut 7 into fixing bolt 6 and nut 9 into fixing bolt 8. Then, pass fixing bolt 6 and fixing bolt 8 through the two circular holes on the lower plate of the clamp fixing frame 3 from top to bottom. Place the heads of fixing bolt 6 and fixing bolt 8 with the attached rubber pad against the lower surface of the edge of the drum 22. Tighten nuts 7 and 9 downwards to complete the left clamp fastening. Specifically, fit the side plate of the fixing frame 3 against the outer edge of the drum 22 and continuously rotate nut 7 downwards to gradually reduce the distance between the head of fixing bolt 6 and the upper plate of the fixing frame 3. Finally, under the synergistic action of fixing bolt 6 and pressure block 5, the multi-angle obstacle strip installation device is clamped and fixed to the edge of the drum 22.

[0081] 4) Repeat steps 2) and 3) to secure the right clamp, and finally fix the obstacle bar 1 by using two sets of multi-angle obstacle bar installation devices;

[0082] 5) A balance block 10 is provided on the drum 22 at a position relative to the obstacle bar 1180°, that is, the fixed position of the balance block 10 is symmetrical with respect to the fixed position of the obstacle bar 1 relative to the drum 22: the rubber pad 21 is tightly pasted on the lower surface of the connecting plate 18, and the connecting plate 18 is fixed to the lower surface of the upper plate of the clamp fixing frame 3 by the fixing bolt group 17, pressing the connecting plate 18 to the surface of the drum 22;

[0083] 6) Tightly attach the circular rubber pad 19 to the upper surface of the head of fixing bolt 3 11 and fixing bolt 4 14. Screw fixing bolt 3 11 and fixing bolt 4 14 into the balance block 10 from top to bottom until they are flush with the upper surface of the balance block 10. Screw nuts 3 12 and 4 13 into fixing bolt 3 11 in sequence and tighten nuts 3 12. Screw nuts 5 15 and 6 16 into fixing bolt 4 14 in sequence and tighten nuts 5 15. Pass fixing bolt 3 11 and fixing bolt 4 14 through the circular hole in the lower plate of the clamp fixing frame 3. Tightly attach the balance block 10 to the lower surface of the edge of the drum 22. Tighten nuts 4 13 and 6 16 downwards to complete the left clamp fastening.

[0084] 7) Repeat steps 5) and 6) to tighten the right clamp, thereby securing the two balance blocks 10.

[0085] Perform the test using the normal cleat test procedure.

[0086] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A multi-angle barrier strip mounting device for tire CLEAT testing, characterized in that: It includes a fixing frame (3), a connecting plate (4), a pressure block (5), and at least one fixing bolt; The fixing frame (3) is a U-shaped structure, including an upper plate, a side plate and a lower plate; the connecting plate (4) is set on the lower surface of the upper plate; the lower plate is provided with a number of round holes, and the fixing bolts correspond one-to-one with the round holes, and the fixing bolts are inserted into the round holes; a nut is sleeved on the fixing bolt, and the tension of the fixing bolt is adjusted by rotating the nut; the pressure block (5) is detachably connected to the connecting plate (4), and the lower surface of the pressure block (5) is provided with a fixing groove, which is used to fix one end of the barrier strip (1), the inclination angle of the fixing groove is 0~60 degrees, and the lower surface of the pressure block (5) is arc-shaped; The lower surface of the barrier strip (1) is provided with a rubber strip fixing groove, which is used to accommodate the rubber strip (2).

2. The multi-angle barrier strip installation device for tire CLEAT testing according to claim 1, characterized in that: A rubber gasket (20) is attached to the lower surface of the pressure block (5).

3. The multi-angle barrier strip installation device for tire CLEAT testing according to claim 1, characterized in that: The top-view projection shape of the obstacle strip (1) is a parallelogram, and the bottom of the obstacle strip (1) is designed with an arc.

4. The multi-angle barrier strip installation device for tire CLEAT testing according to claim 1, characterized in that: The cross-sectional shape of the rubber strip (2) can be semi-circular, rectangular, triangular or arc-shaped, and the rubber strip fixing groove matches the rubber strip (2).

5. The multi-angle barrier strip installation device for tire CLEAT testing according to claim 1, characterized in that: The connecting plate (4) is fixed to the upper plate of the fixing frame (3) by bolts or buckles.

6. The multi-angle barrier strip installation device for tire CLEAT testing according to claim 1, characterized in that: The fixing method between the connecting disc (4) and the pressure block (5) can be either the groove and the protrusion interlocking or the snap-fit ​​connection.

7. A multi-angle barrier strip installation device for tire CLEAT testing according to claim 6, characterized in that: The lower surface of the connecting disc (4) is provided with a groove, and the upper surface of the pressure block (5) is provided with a protrusion that matches the groove of the connecting disc (4).

8. A multi-angle barrier strip installation device for tire CLEAT testing according to claim 6, characterized in that: The upper surface of the pressure block (5) is provided with a groove that matches the connecting disc (4), and the connecting disc (4) matches the groove.

9. A multi-angle barrier strip mounting device for tire cleat testing according to claim 7 or 8, characterized in that: The top-view projection shape of the groove can be a circle, triangle, rectangle, or other polygons.

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