A rubber testing machine wheel and a rubber testing device
By designing a rubber testing machine wheel and simplifying the fixing of the mounting ring using a limiting ring and annular flange, and combining it with a road surface simulation device to conduct dynamic simulation tests on the tread rubber of aircraft tires, the problems of high cost and long cycle in existing technologies have been solved, and efficient and low-cost wear life testing has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHEMCHINA SHUGUANG RUBBER IND RES&DESIGN INST C
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-05
AI Technical Summary
In existing technologies, research on the wear of aircraft tire tread rubber suffers from high costs, long cycles, and inconvenient installation and replacement, making it difficult to effectively reflect the actual usage of tires.
A rubber testing wheel has been designed, including a drum, a mounting ring, and a limiting ring. By cooperating with the annular flange, the fixing method of the mounting ring is simplified. Combined with a road surface simulation device, dynamic simulation tests are conducted, reducing manufacturing costs and improving the ease of assembly and disassembly.
It enables dynamic simulation testing of aircraft tire tread rubber, reflecting wear life, simplifies the disassembly and assembly process of mounting rings, reduces costs, and improves testing efficiency and accuracy.
Smart Images
Figure CN224327913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rubber testing tooling technology, and in particular to a rubber testing wheel and a rubber testing device. Background Technology
[0002] In the aviation tire industry, tire lifespan is generally characterized by the number of takeoffs and landings. In the civilian market, major airlines replace tires when the tread grooves are worn down; the number of tire uses is also a major concern for airlines, as it directly affects the frequency of tire replacements and economic benefits.
[0003] Major aircraft tire manufacturers worldwide conduct research on tire wear life from various perspectives. These include: 1) accumulating data through field use and categorizing it based on runway conditions and pilot operating habits; and 2) conducting Akron wear tests on tread rubber samples. Of these methods, field data accumulation better reflects the actual condition of the tires, but requires a significant amount of field use to accumulate data. Sample-level tests can only provide a comprehensive analysis of theoretical data and wear, but they do not accurately reflect the tire's actual usage.
[0004] For aircraft tires, the component in direct contact with the ground is the tread compound. The tread compound is a pure rubber compound that undergoes high-temperature, high-pressure vulcanization to give it wear resistance and tear resistance. The service life of an aircraft tire is determined by the performance of its tread compound. Therefore, research on tread compound wear is of great significance for aircraft tires.
[0005] Currently, the method typically involves using a road surface simulation device to attach to a tire sample and rotate the sample to detect the wear condition of the rubber on the sample surface. However, tire samples, being whole tires, have a complex manufacturing process, a long production cycle, and high costs. Furthermore, the installation and replacement of tire samples are inconvenient, which is not conducive to studying rubber wear. Utility Model Content
[0006] The purpose of this invention is to provide a rubber testing wheel and a rubber testing device to solve the problems existing in the prior art. By setting the wheel, the rubber part to be tested can be fixed on the wheel, and with the help of the road surface simulation device, dynamic simulation test of aviation tire tread rubber can be carried out. Moreover, it is convenient to disassemble and assemble and has low manufacturing cost.
[0007] To achieve the above objectives, this utility model provides the following solution:
[0008] This utility model provides a rubber testing machine wheel, including a drum body, a mounting ring, and a limiting ring. The drum body includes a cylindrical section structure and an annular flange coaxially connected to one end of the cylindrical section structure. The cylindrical section structure is used to fit onto a test shaft. The outer ring surface of the mounting ring is used to connect a cylindrical rubber part to be tested, and the inner ring surface of the mounting ring fits onto the outer circumferential surface of the cylindrical section structure. One end of the mounting ring abuts against the annular flange. The limiting ring is coaxially and detachably fixed to the other end of the cylindrical section structure and faces the annular flange, with the limiting ring abutting against the other end of the mounting ring.
[0009] As one embodiment, the end of the cylindrical section structure is provided with a first internal threaded hole parallel to its axial direction, and the limiting ring is provided with a first through hole parallel to its axial direction. The first bolt passes through the first through hole and connects with the first internal threaded hole to fix the limiting ring.
[0010] As one embodiment, both the first internal threaded hole and the first through hole are uniformly provided in multiples along the circumferential direction.
[0011] As one embodiment, a second internal threaded hole is provided radially on the circumferential surface of the mounting ring, and a second through hole is provided radially through the circumferential surface of the cylindrical section structure. The second bolt passes through the second through hole and connects with the second internal threaded hole to fix the mounting ring.
[0012] As one embodiment, both the second internal threaded hole and the second through hole are uniformly arranged in multiple rows along the circumference; along the axial direction of the drum body, both the second internal threaded hole and the second through hole are arranged in multiple rows at intervals.
[0013] As one embodiment, the first internal threaded hole and the second through hole are alternately arranged along the circumference of the drum body.
[0014] In one embodiment, a groove is provided on the outer circumferential wall of the mounting ring, and the mounting ring is used for vulcanization connection with the rubber part to be tested, wherein the rubber part to be tested is embedded in the groove.
[0015] As one embodiment, the groove includes an axial groove and a circumferential groove that are perpendicular to each other, and the bottom of the axial groove and the bottom of the circumferential groove are both arc-shaped structures.
[0016] In one embodiment, the circumferential inner wall of the cylindrical section structure is connected to the cylindrical connecting part by an annular connecting plate, and a bearing is provided on the inner wall of the cylindrical connecting part, which is used to be sleeved on the test shaft.
[0017] This utility model also provides a rubber testing device, including the rubber testing wheel as described above.
[0018] This utility model has the following technical advantages over the prior art:
[0019] This invention, by setting up a wheel, fixes the rubber part to be tested onto the wheel. Combined with a road surface simulation device, it enables dynamic simulation testing of aircraft tire tread rubber, reflecting the wear life of the tread rubber. Based on the test results, operators can apply high-performance tread rubber to aircraft tire products. Furthermore, this invention utilizes a limiting ring and annular flange to axially limit the mounting ring, preventing axial movement during rotation and thus avoiding interference with test results. Additionally, the structure and connection methods of the limiting ring and drum, and the mounting ring and drum, are relatively simple, resulting in lower manufacturing costs and easier assembly and disassembly of the mounting ring, thereby improving testing efficiency.
[0020] Other technical solutions of this utility model also have the following technical effects:
[0021] In this invention, a groove is provided on the outer circumferential wall of the mounting ring. After the mounting ring and the rubber part to be tested are vulcanized and connected, the inner surface of the rubber part to be tested is embedded in the groove, which can improve the connection strength between the rubber part to be tested and the mounting ring and avoid relative rotation between the rubber part to be tested and the mounting ring. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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 these drawings without creative effort.
[0023] Figure 1 This is a cross-sectional structural schematic diagram of the rubber testing machine wheel in one embodiment of the present invention;
[0024] Figure 2 This is a cross-sectional view of the drum body in one embodiment of the present invention;
[0025] Figure 3 This is a front view of the drum body in one embodiment of the present invention;
[0026] Figure 4 This is a schematic diagram of the mounting ring in one embodiment of the present invention;
[0027] Figure 5 This is a partial cross-sectional view of the mounting ring in one embodiment of the present invention.
[0028] Figure 6 This is a schematic diagram showing the unfolded planar surface of the mounting ring in one embodiment of the present invention;
[0029] Figure 7 for Figure 4 A magnified schematic diagram of the structure of part A in the diagram;
[0030] Figure 8 This is a schematic diagram of the limiting ring in one embodiment of the present invention.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Drum body; 101. Cylindrical section structure; 102. Annular flange; 103. Annular connecting plate; 104. Cylindrical connecting part; 105. First internal threaded hole; 106. Second through hole;
[0033] 2. Mounting ring; 201. Second internal threaded hole; 202. Groove;
[0034] 3. Limiting ring; 301. First through hole;
[0035] 4. The rubber part to be tested;
[0036] 5. First bolt;
[0037] 6. Second bolt;
[0038] 7. Bearings. Detailed Implementation
[0039] 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.
[0040] The purpose of this invention is to provide a rubber testing wheel and a rubber testing device to solve the problems existing in the prior art. By setting the wheel, the rubber part to be tested can be fixed on the wheel, and with the help of the road surface simulation device, dynamic simulation test of aviation tire tread rubber can be carried out. Moreover, it is convenient to disassemble and assemble and has low manufacturing cost.
[0041] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0042] Example 1:
[0043] like Figures 1 to 8As shown, this embodiment provides a rubber testing wheel, including a drum body 1, a mounting ring 2, and a limiting ring 3. The drum body 1, mounting ring 2, and limiting ring 3 can all be made of steel. The drum body 1 includes a cylindrical section structure 101 and an annular flange 102 coaxially connected to one end of the cylindrical section structure 101. The cylindrical section structure 101 is fitted onto a test shaft, allowing the drum body 1 to rotate on the test shaft. The outer ring surface of the mounting ring 2 is used to connect a cylindrical rubber part 4 to be tested, and the inner ring surface of the mounting ring 2 is fitted onto the outer circumferential surface of the cylindrical section structure 101. One end of the mounting ring 2 abuts against the annular flange 102. The limiting ring 3 is coaxially and detachably fixed to the other end of the cylindrical section structure 101, facing the annular flange 102, and abuts against the other end of the mounting ring 2.
[0044] In use, the mounting ring 2 and the rubber part 4 to be tested are connected using a vulcanization integral molding technology. The setting of the vulcanization mold and the implementation of the vulcanization process are well known to those skilled in the art, and this embodiment will not elaborate on the vulcanization connection process between the mounting ring 2 and the rubber part 4. Then, the mounting ring 2 is fitted onto the cylindrical section structure 101 of the drum body 1; next, the limiting ring 3 is fixed to the other end of the cylindrical section structure 101, using the limiting ring 3 to press and fix the mounting ring 2, preventing axial shaking during rotation. Finally, the surface of the road surface simulation device is brought into contact with the surface of the rubber part 4 to be tested. The road surface simulation device is activated, causing the rubber part 4, the mounting ring 2, and the drum body 1 to rotate, conducting a wear test on the rubber part 4. After a set rotation time, the road surface simulation device is stopped, and the wear condition of the rubber part 4 is observed. The road surface simulation device is an existing device, and its structure will not be described in detail in this embodiment.
[0045] Therefore, this embodiment, by setting up a wheel and fixing the rubber part 4 to be tested on the wheel, can conduct dynamic simulation tests of aviation tire tread rubber in conjunction with a road surface simulation device, reflecting the wear life of aviation tire tread rubber. Based on the test results, operators can apply high-performance tread rubber to aviation tire products. Furthermore, in this embodiment, the limiting ring 3 and the annular flange 102 can axially limit the mounting ring 2, preventing it from moving axially during rotation and affecting the test results. In addition, the structure and connection method of the limiting ring 3 and the drum body 1, and the mounting ring 2 and the drum body 1, are relatively simple in this embodiment, resulting in lower manufacturing costs and easier assembly and disassembly of the mounting ring 2, thus improving test efficiency.
[0046] In this embodiment, the inner diameter of the mounting ring 2 is matched with the outer diameter of the cylindrical section structure 101, and the two are in a clearance fit, allowing the mounting ring 2 to slide onto the cylindrical section structure 101. Furthermore, the axial dimension of the mounting ring 2 is equal to the axial dimension of the cylindrical section structure 101.
[0047] like Figure 2 , Figure 3As shown, in this embodiment, the end of the cylindrical section structure 101 is provided with a first internal threaded hole 105 parallel to its axial direction, and the limiting ring 3 is provided with a first through hole 301 parallel to its axial direction. The first bolt 5 passes through the first through hole 301 and connects with the first internal threaded hole 105 to fix the limiting ring 3. In order to ensure the connection strength between the cylindrical section structure 101 and the limiting ring 3, in this embodiment, multiple first internal threaded holes 105 and first through holes 301 are evenly provided along the circumference, usually not less than 4. In this embodiment, 6 first internal threaded holes 105 and 6 first through holes 301 are provided.
[0048] like Figure 4 , Figure 5 As shown, in this embodiment, a second internal threaded hole 201 is radially provided on the circumferential surface of the mounting ring 2, and a radially penetrating second through hole 106 is provided on the circumferential surface of the cylindrical section structure 101. The second bolt 6 passes through the second through hole 106 from the inside of the cylindrical section structure 101 and connects with the second internal threaded hole 201 to fix the mounting ring 2, preventing relative rotation of the mounting ring 2 relative to the cylindrical section structure 101 and ensuring the consistency of rotation between the drum body 1 and the mounting ring 2. After the second bolt 6 is connected, its end will not protrude from the second internal threaded hole 201 onto the outer surface of the mounting ring 2. To ensure the connection strength between the cylindrical section structure 101 and the mounting ring 2, multiple second internal threaded holes 201 and second through holes 106 are uniformly provided circumferentially. In this embodiment, there are typically no fewer than four second internal threaded holes 201 and second through holes 106 along the circumferential direction. In this embodiment, there are six second internal threaded holes 201 and second through holes 106 along the circumferential direction. Along the circumferential direction of the drum body 1, the first internal threaded holes 105 and second through holes 106 are alternately arranged. Furthermore, along the axial direction of the drum body 1, the second internal threaded holes 201 and second through holes 106 are arranged in multiple rows at intervals. In this embodiment, the second internal threaded holes 201 and second through holes 106 are arranged in two rows at intervals, and each row has six second internal threaded holes 201 or second through holes 106. During the vulcanization process of the rubber part 4 to be tested and the mounting ring 2, the second internal threaded holes 201 can be prevented from being blocked by the rubber part 4 to be tested through tooling design.
[0049] like Figures 5-7As shown, to improve the connection strength between the rubber part 4 under test and the mounting ring 2 and to prevent relative rotation between them, a groove 202 is provided on the outer circumferential wall of the mounting ring 2 in this embodiment. After the mounting ring 2 and the rubber part 4 under test are vulcanized together, the inner surface of the rubber part 4 under test is embedded in the groove 202. In this embodiment, the width of the groove 202 is 2mm, the groove depth is 2mm, and the radius of the arc-shaped structure at the bottom of the groove 202 is 1mm. The groove 202 includes an axial groove parallel to the axial direction and a circumferential groove along the circumferential direction. The axial groove and the circumferential groove are perpendicular to each other, and the bottom of both the axial groove and the bottom of the circumferential groove are arc-shaped structures. In the planar development view of the outer circumferential surface of the mounting ring 2, the interval between adjacent axial grooves and adjacent circumferential grooves is 10mm (the distance between the centerlines of adjacent grooves 202).
[0050] The circumferential inner wall of the cylindrical section structure 101 is connected to the cylindrical connecting part 104 through the annular connecting plate 103. The inner wall of the cylindrical connecting part 104 is provided with a bearing 7, which is used to be sleeved on the test shaft. In order to ensure the stability of the connection with the test shaft, two bearings 7 are provided at intervals in this embodiment.
[0051] Example 2:
[0052] This embodiment provides a rubber testing device, including the rubber testing wheel as shown in Embodiment 1.
[0053] Any adaptive changes made according to actual needs are within the protection scope of this utility model.
[0054] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A rubber testing wheel, characterized in that, include: The drum body includes a cylindrical section structure and an annular flange coaxially connected to one end of the cylindrical section structure; The cylindrical section structure is used to be fitted onto the test shaft; The mounting ring has an outer ring surface for connecting a cylindrical rubber part to be tested, and an inner ring surface for fitting onto the outer circumferential surface of the cylindrical section structure; one end of the mounting ring abuts against the annular flange. And a limiting ring, which is coaxially and detachably fixed to the other end of the cylindrical section structure and is directly opposite the annular flange. The limiting ring abuts against the other end of the mounting ring.
2. The rubber testing wheel according to claim 1, characterized in that, The end of the cylindrical section structure is provided with a first internal threaded hole parallel to its axial direction, and the limiting ring is provided with a first through hole parallel to its axial direction. The first bolt passes through the first through hole and connects with the first internal threaded hole to fix the limiting ring.
3. The rubber testing wheel according to claim 2, characterized in that, Both the first internal threaded hole and the first through hole are evenly provided in multiples along the circumference.
4. The rubber testing wheel according to claim 3, characterized in that, The mounting ring has a second internal threaded hole radially arranged on its circumferential surface, and the cylindrical section structure has a second through hole radially extending on its circumferential surface. The second bolt passes through the second through hole and connects with the second internal threaded hole to fix the mounting ring.
5. The rubber testing wheel according to claim 4, characterized in that, Both the second internal threaded hole and the second through hole are evenly arranged in multiple rows along the circumference; along the axial direction of the drum body, both the second internal threaded hole and the second through hole are arranged in multiple rows at intervals.
6. The rubber testing wheel according to claim 5, characterized in that, Along the circumference of the drum body, the first internal threaded hole and the second through hole are alternately arranged.
7. The rubber testing wheel according to any one of claims 1 to 6, characterized in that, The outer circumferential wall of the mounting ring is provided with a groove, and the mounting ring is used to vulcanize and connect with the rubber part to be tested, and the rubber part to be tested is embedded in the groove.
8. The rubber testing wheel according to claim 7, characterized in that, The groove includes perpendicular axial grooves and circumferential grooves, and the bottom of both the axial groove and the bottom of the circumferential groove are arc-shaped structures.
9. The rubber testing wheel according to claim 8, characterized in that, The circumferential inner wall of the cylindrical section structure is connected to the cylindrical connecting part by an annular connecting plate. A bearing is provided on the inner wall of the cylindrical connecting part, and the bearing is used to be sleeved on the test shaft.
10. A rubber testing apparatus, characterized in that, Includes the rubber testing wheel as described in any one of claims 1 to 9.