Tracked vehicle track wheel wear test device and test method

Abstract

The present invention provides a tracked vehicle roller wear test device and a wear test method based on the tracked vehicle roller wear test device. The tracked vehicle roller wear test device comprises: a base; a bearing device, which is arranged on the base and comprises two bearing surfaces arranged side by side and extending in a first direction, wherein the two bearing surfaces are configured to respectively support two track mechanisms of the tracked vehicle during the tracked vehicle roller wear test, and at least one bearing surface has a side away from the other bearing surface and a side close to the other bearing surface at different heights; and a detection device, which is configured to obtain wear data of the tracked vehicle roller after the tracked vehicle passes on the bearing device. The present invention is conducive to accurately estimating the wear amount of the tracked vehicle roller under actual working conditions.

Description

Technical Field

[0001] The invention relates to the field of vehicle component performance testing, and in particular to a track wheel wear test device and a track wheel wear test method for a crawler vehicle. Background Art

[0002] The track chassis of a tracked vehicle includes guide wheels, supporting rollers, sprocket wheels, drive wheels, and tracks. Among them, the supporting rollers mainly support the mass of the vehicle and the movement. The operating conditions of tracked vehicles are very harsh. During driving and operation, the supporting rollers are subjected to huge alternating impact loads. Under harsh working conditions, the materials of the supporting rollers will deteriorate to varying degrees. The supporting rollers may even suffer from excessive wear, fracture, and other faults, posing major safety hazards to the operation of tracked vehicles. This places high demands on the durability of the track chassis of tracked vehicles, especially the durability of the supporting rollers. When evaluating the durability of the supporting rollers, how to accurately predict the wear of the supporting rollers under extreme working conditions is a difficult problem. Summary of the invention

[0003] The object of the present invention is to provide a track wheel wear test device and a track wheel wear test method for a tracked vehicle.

[0004] A first aspect of the present invention provides a tracked vehicle track wheel wear test device, comprising:

[0005] Pedestal;

[0006] A bearing device is disposed on the base, comprising two bearing surfaces arranged side by side and extending in a first direction, wherein the two bearing surfaces are configured to respectively support two track mechanisms of the tracked vehicle during a roller wear test, and a side of at least one of the bearing surfaces away from the other bearing surface has a different height from a side close to the other bearing surface; and

[0007] The detection device is configured to obtain wear data of the supporting wheels after the tracked vehicle passes on the carrying device.

[0008] According to some embodiments of the present invention, a side of at least one of the bearing surfaces that is away from another bearing surface is higher than a side that is close to another bearing surface.

[0009] According to some embodiments of the present invention, a side of any one of the bearing surfaces that is away from another bearing surface is higher than a side that is close to the other bearing surface.

[0010] According to some embodiments of the present invention, the bearing surface whose side away from the other bearing surface has a different height from the side close to the other bearing surface is an inclined surface.

[0011] According to some embodiments of the present invention, the distance between the two bearing surfaces is adjustable.

[0012] According to some embodiments of the present invention, the carrying device comprises:

[0013] two support rails, the upper surfaces of the two support rails respectively including the two bearing surfaces; and

[0014] A plurality of sleepers are arranged side by side on the base along the first direction, and the two support rails are arranged on the plurality of sleepers.

[0015] According to some embodiments of the present invention, at least one of the two support rails is connected to the plurality of sleepers in a positionally adjustable manner.

[0016] According to some embodiments of the present invention, the road sleeper comprises:

[0017] pillow body; and

[0018] A plurality of groups of first fixing holes are arranged side by side along the length direction of the sleeper body, each group of the first fixing holes includes a plurality of the first fixing holes arranged on the sleeper body along the width direction of the sleeper body, and the two support rails can be selectively fixed to the sleeper through some of the first fixing holes of the plurality of groups of first fixing holes.

[0019] According to some embodiments of the present invention, at least one of the support rails comprises:

[0020] A bottom plate, fixedly connected to the sleeper;

[0021] an inclined plate disposed obliquely relative to the bottom plate, wherein an upper surface of the inclined plate includes the bearing surface; and

[0022] The rib plate is fixedly connected between the bottom plate and the inclined plate.

[0023] The second aspect of the present invention provides a roller wear test method based on the roller wear test device according to the first aspect of the present invention, comprising:

[0024] Selecting a sample roller from a plurality of rollers of the same production batch, and installing the sample roller on a tracked vehicle;

[0025] performing at least one wear test, each of the wear tests comprising driving the tracked vehicle through the load-bearing device along the first direction on the two load-bearing surfaces;

[0026] Acquiring wear data of the sample rollers of the tracked vehicle after performing the at least one wear test;

[0027] It is determined whether the plurality of track rollers of the same production batch meet the quality evaluation index according to the wear data.

[0028] According to some embodiments of the present invention, obtaining the wear data includes:

[0029] After performing the wear test once or multiple times, obtaining real-time dimension data of the sample roller;

[0030] The real-time wear amounts of the sample rollers are obtained based on the initial dimension data for characterizing the dimensions of the sample rollers in an unworn state and the real-time dimension data. The wear data includes the real-time wear amounts.

[0031] According to some embodiments of the present invention, before performing the wear test, the method further includes:

[0032] Conducting a test run on the tracked vehicle equipped with the sample rollers;

[0033] The dynamic data of the tracked vehicle during the test run are obtained, wherein the dynamic data include the rolling torque of the sample roller, the radial displacement of the sample roller, and the axial displacement of the sample roller.

[0034] According to some embodiments of the present invention, after performing the trial run and before performing the wear test, the method further includes:

[0035] Running-in the tracked vehicle equipped with the sample rollers;

[0036] Acquiring running-in dimension data for characterizing the dimensions of the sample rollers of the tracked vehicle after the running-in and the dynamic data of the tracked vehicle during the running-in process;

[0037] The wear amount of each of the sample rollers after the running-in is obtained according to the initial dimension data and the running-in dimension data.

[0038] According to some embodiments of the present invention, the tracked vehicle is run-in at a maximum driving speed.

[0039] According to some embodiments of the present invention, the wear test is performed on the tracked vehicle at a maximum travel speed on the tracked wheel wear test device.

[0040] According to some embodiments of the present invention, in at least one wear test of all the wear tests performed on the tracked wheel wear testing device, the tracked vehicle stops traveling at least once and performs engineering work while stopped.

[0041] According to some embodiments of the present invention, the quality evaluation index includes the maximum value of the wear amount of the sample roller, the average value of the wear amount of the sample roller and the surface morphology of the sample roller, the maximum value of the wear amount of the sample roller X max and the average wear amount of the sample rollers X avg Satisfies the following relationship:

[0042] X max =MAX[x1,x2,…,x i ,…x n ]

[0043]

[0044] Where n represents the number of sample rollers, x i Represents the wear amount of the i-th sample roller.

[0045] The roller wear test device provided by the embodiment of the present invention can be used to perform wear tests on a tracked vehicle. The bearing surface of the bearing device can simulate the traffic environment of the tracked vehicle under actual working conditions. Compared with the virtual prototype simulation method and the test bench loading method, the working state of the rollers undergoing the wear test is closer to the working state of the rollers under actual working conditions. The detection device can obtain the wear data of the rollers after the tracked vehicle passes on the bearing device. The wear data is closer to the wear condition of the rollers under actual working conditions, which is conducive to accurately estimating the wear amount of the rollers under actual working conditions. The wear data obtained by the roller wear test method provided by the embodiment of the present invention is closer to the wear condition of the rollers under actual working conditions. The location where the roller wear is more serious and the cause of the wear are analyzed based on the above wear data, which is more valuable for reference to the optimal design of the rollers.

[0046] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0048] Figure 1 The invention shows a base and a bearing device of a roller wear test device according to some embodiments of the present invention, and a track chassis of a tracked vehicle that is subjected to a wear test on the roller wear test device.

[0049] Figure 2The figure shows the contact state between the track rollers of the crawler chassis and the track links when a tracked vehicle is subjected to a wear test on the track roller wear test device according to some embodiments of the present invention.

[0050] Figure 3 The structures of the sleepers according to some embodiments of the present invention are shown.

[0051] Figure 4 The structures of the support rails of some embodiments of the present invention are shown.

[0052] Figure 5 A flow chart showing a method for testing roller wear according to some embodiments of the present invention is shown.

[0053] Figures 1 to 5 In the figure, each reference numeral represents:

[0054] 1. Base; 2. Sleeper; 21. Lifting ring; 22. First fixing hole; 3. Support rail; 31. Bottom plate; 32. Inclined plate; 33. Rib plate; 34. Second fixing hole; 4. Bolt; 5. Crawler chassis; 51. Supporting wheel; 52. Chain track section; 53. Track shoe. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, these technologies, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0057] In the description of the present invention, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0058] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0059] In the related art, in order to predict the wear of the track rollers under severe working conditions and to perform quality control on the track rollers, during the design stage of the track rollers, the stress conditions of the track chassis of the tracked vehicle under different working conditions are usually analyzed with the help of finite element software and multi-body dynamics software, a virtual prototype simulation model of the track chassis is established, and the strength and stress state of the track rollers in the track chassis are simulated and analyzed to provide a reference for the optimal design of the track rollers; during the manufacturing stage of the track rollers, the track roller assembly is usually subjected to a loading test on a test bench, and the wear conditions of the track rollers in actual use are predicted based on the test results.

[0060] In the process of implementing the technical solution of the present invention, the inventors found that for the virtual prototype simulation method, due to the influence of factors such as incomplete test condition settings and inaccurate load collection, there is a certain degree of error between the virtual prototype model and the actual track chassis, which makes it difficult to reflect the actual working state of the supporting roller; for the test bench loading method, the loading test of the supporting roller assembly conducted on the test bench alone deviates greatly from the working state of the supporting roller in the actual working condition to a certain extent, and it is difficult to reflect key indicators such as the wear amount of the supporting roller. Therefore, the virtual prototype simulation method and the test bench loading method are not conducive to accurately estimating the wear amount of the supporting roller under harsh working conditions.

[0061] In order to improve the limitations of the above methods in the design and manufacture of track rollers and to better control the quality of track rollers, such as Figures 1 to 4 As shown, some embodiments of the present invention provide a tracked vehicle track roller wear test device, including a base 1, a bearing device and a detection device. The track roller wear test device can be used as a whole vehicle test site for predicting the wear amount of the track roller under actual working conditions.

[0062] The base 1 is used for limiting and fixing the bearing device, and can be made of concrete material so that the base 1 has sufficient strength and stability. The bearing device is arranged on the base 1. The bearing device includes two bearing surfaces arranged side by side and extending along a first direction. The two bearing surfaces are configured to respectively support the two track mechanisms of the tracked vehicle to pass during the roller wear test. The side of at least one bearing surface away from the other bearing surface is different in height from the side close to the other bearing surface to simulate the passage environment of the tracked vehicle under actual working conditions. When conducting the roller wear test, the tracked vehicle passes on the bearing device along the first direction. In order to facilitate the tracked vehicle to enter the bearing device from outside the roller wear device or to drive out of the roller wear device from the bearing device, a ramp can be set at a corresponding position on the base 1. The detection device is configured to obtain the wear data of the roller 51 after the tracked vehicle passes on the bearing device.

[0063] The track roller wear test device provided in the embodiment of the present invention can be used to carry out wear tests on a complete tracked vehicle. The bearing surface of the bearing device can simulate the traveling environment of the tracked vehicle under actual working conditions. Compared with the virtual prototype simulation method and the test bench loading method, the working state of the track roller undergoing the wear test is closer to the working state of the track roller under actual working conditions. The detection device can obtain the wear data of the track roller after the tracked vehicle passes on the bearing device. The wear data is closer to the wear condition of the track roller under actual working conditions, which is conducive to accurately estimating the wear amount of the track roller under actual working conditions.

[0064] In some embodiments, a side of at least one bearing surface that is farther from another bearing surface is higher than a side that is closer to the other bearing surface.

[0065] like Figure 2 As shown, in some embodiments, a side of any one bearing surface away from another bearing surface is higher than a side close to the other bearing surface.

[0066] like Figure 2 As shown, in some embodiments, the bearing surface whose side away from the other bearing surface and the side close to the other bearing surface have different heights is an inclined surface.

[0067] According to the above setting of the bearing surface, Figure 2As shown, when the tracked vehicle enters the load-bearing device, at least a portion of the track shoe 53 of the tracked vehicle fits with the load-bearing surface. For at least one of the two track mechanisms of the tracked vehicle, only a portion of the supporting roller 51 contacts the chain track segment 52, and the other portion is separated from the chain track segment 52. The contact area between the supporting roller 51 and the chain track segment 52 is reduced, and the pressure on the contact surface is increased, which is conducive to simulating the working state of the supporting roller 51 under harsh working conditions, such as the working state of the supporting roller 51 when the tracked vehicle is traveling on a grooved terrain, so that the wear data obtained by the supporting roller wear test device is closer to the wear condition of the supporting roller under actual working conditions.

[0068] In order to meet the requirements of tracked vehicles of different models for roller wear testing, in some embodiments, the distance between the two load-bearing surfaces is adjustable.

[0069] like Figure 1 As shown, in some embodiments, the bearing device includes two support rails 3 and a plurality of sleepers 2. The upper surfaces of the two support rails 3 respectively include two bearing surfaces. The plurality of sleepers 2 are arranged side by side on the base 1 along a first direction, and the two support rails 3 are disposed on the plurality of sleepers 2.

[0070] On the basis of setting two support rails 3 and a plurality of sleepers 2, as one of the specific forms of adjustable distance between two bearing surfaces, in some embodiments, at least one of the two support rails 3 is connected to a plurality of sleepers 2 in an adjustable manner.

[0071] like Figure 3 As shown, in some embodiments, the sleeper 2 includes a sleeper body and multiple groups of first fixing holes 22. The multiple groups of first fixing holes 22 are arranged side by side along the length direction of the sleeper body, and each group of first fixing holes 22 includes multiple first fixing holes 22 arranged on the sleeper body along the width direction of the sleeper body. In order to achieve that at least one of the two support rails 3 is positionally adjustable and connected to multiple sleepers 2, the two support rails 3 can be selectively fixed to the sleeper 2 through some of the multiple groups of first fixing holes 22 to meet the requirements of the wear test of the supporting wheels of different models of tracked vehicles. Two lifting rings 21 can also be set on both sides of the sleeper body to facilitate the lifting and replacement of different sleepers 2 according to different models of tracked vehicles.

[0072] like Figure 4As shown, in some embodiments, at least one support rail 3 includes a base plate 31, an inclined plate 32 and a rib plate 33. The base plate 31 is fixedly connected to the sleeper 2. A second fixing hole 34 may be provided on the base plate 31, and the support rail 3 is fixedly connected to the sleeper 2 by bolts 4. The inclined plate 32 is inclined relative to the base plate 31, and the upper surface of the inclined plate 32 includes a bearing surface. The size of the angle between the inclined plate 32 and the base plate 31 can be set accordingly according to the track gauge of the tracked vehicle or the ruggedness of the work site when the tracked vehicle is traveling. The rib plate 33 is fixedly connected between the base plate 31 and the inclined plate 32 to enhance the strength of the support rail 3. The aforementioned support rail 3 can be welded using steel plates of corresponding sizes according to the structure and model of the tracked vehicle to be tested, and the required travel distance of the tracked vehicle in the track wear test.

[0073] like Figure 5 As shown, some embodiments of the present invention also provide a roller wear test method based on the aforementioned roller wear test device, comprising: extracting a sample roller from a plurality of rollers of the same production batch, and installing the sample roller on a tracked vehicle; performing at least one wear test, each wear test comprising causing the tracked vehicle to travel along a first direction on two load-bearing surfaces through a load-bearing device; obtaining wear data of the sample roller of the tracked vehicle after performing at least one wear test; and judging whether the plurality of rollers of the same production batch meet the quality evaluation index based on the wear data.

[0074] In the aforementioned step of performing at least one wear test, the tracked vehicle travels through the carrying device along the first direction on the two carrying surfaces, and may travel through the carrying device in a forward manner or in a backward manner.

[0075] The roller wear test method provided by the present invention has the corresponding advantages of the above-mentioned roller wear test device because it uses the above-mentioned roller wear test device. In addition, since the wear data obtained by the roller wear test method is closer to the wear condition of the roller under actual working conditions, the position where the roller wear is more serious and the cause of the wear are analyzed based on the above-mentioned wear data, which is more valuable for reference to the optimal design of the roller.

[0076] In some embodiments, obtaining wear data includes: obtaining real-time dimensional data of a sample roller after each wear test or multiple wear tests; obtaining the real-time wear amount of the sample roller based on initial dimensional data for characterizing the size of the sample roller in an unworn state and the real-time dimensional data of all times, the wear data including the real-time wear amount of all times.

[0077] In some embodiments, before the wear test is performed, the roller wear test method further includes: conducting a test run on a tracked vehicle equipped with a sample roller; and obtaining dynamic data of the tracked vehicle during the test run, the dynamic data including the rolling torque of the sample roller, the radial displacement of the sample roller, and the axial displacement of the sample roller. Based on the dynamic data of the tracked vehicle during the test run, the test setting can be associated with the actual working condition corresponding to the test setting, so as to obtain the influence of different working conditions on the wear of the rollers.

[0078] In some embodiments, after the trial run and before the wear test, the roller wear test method further includes: running-in a tracked vehicle equipped with sample rollers; obtaining running-in dimension data for characterizing the dimensions of the sample rollers of the tracked vehicle after the running-in and the dynamic data of the tracked vehicle during the running-in process; and obtaining the amount of wear of each sample roller after the running-in based on the initial dimension data and the running-in dimension data. The running-in process of the tracked vehicle can be carried out on a firm, dry, uneven, non-paved road surface. By running-in the tracked vehicle and obtaining the running-in dimension data and the dynamic data of the tracked vehicle during the running-in process, the wear data of the sample rollers in the running-in wear stage can be obtained, which is conducive to the quality evaluation of the rollers from the perspective of the entire wear cycle of the rollers.

[0079] In some embodiments, the tracked vehicle is run-in at a maximum travel speed.

[0080] In some embodiments, a tracked vehicle is subjected to a wear test on a roller wear test apparatus at maximum travel speed.

[0081] Running-in or performing wear tests on tracked vehicles at maximum speed can allow the track rollers to operate as close to their limit conditions as possible, which helps to more accurately predict the amount of wear on the track rollers under actual operating conditions.

[0082] In order to be closer to the actual working conditions of the crawler vehicle, in some embodiments, in at least one wear test of all wear tests performed on the track wheel wear test device, the crawler vehicle stops driving at least once and performs engineering work when stopped. The specific form of the engineering work is determined according to the type of crawler vehicle, for example, for a crawler excavator, an excavation operation can be performed; for a crawler crusher, a crushing operation can be performed.

[0083] In some embodiments, the quality evaluation index includes the maximum wear amount of the sample roller, the average wear amount of the sample roller, and the surface morphology of the sample roller, so as to evaluate the quality of the roller from the perspective of wear amount.

[0084] The maximum wear value of the sample roller is X maxand the average wear amount of the sample rollers X avg It can be expressed by formula (1) and formula (2) respectively:

[0085] X max =MAX[x1,x2,…,x i ,…x n ] (1)

[0086]

[0087] Where n represents the number of sample rollers, x i Represents the wear amount of the i-th sample roller.

[0088] The surface morphology of the sample roller mainly considers whether there are surface defects such as cracks, pits or metal blocks on the surface of the sample roller.

[0089] The following is a further description of the track roller wear test method provided by the present invention through specific examples.

[0090] Sample rollers are selected from a plurality of rollers of the same production batch, initial dimension data of the sample rollers are obtained, and the sample rollers are respectively installed on tracked vehicles according to the test sequence.

[0091] The tracked vehicle equipped with the sample rollers is tested at the highest driving speed to obtain the rolling torque of the sample rollers, the radial displacement of the sample rollers and the axial displacement of the sample rollers during the test run of the tracked vehicle.

[0092] The tracked vehicle equipped with the sample rollers is run-in at the maximum driving speed to obtain the run-in dimension data of the tracked vehicle and the rolling torque of the sample rollers of the tracked vehicle during the run-in process, the radial displacement of the sample rollers and the axial displacement of the sample rollers; and based on the initial dimension data and the run-in dimension data, the wear amount of each sample roller after the run-in is obtained.

[0093] A plurality of wear tests are performed, each of which includes causing the tracked vehicle to travel along a first direction on two load-bearing surfaces through a load-bearing device. After each 10 wear tests, real-time dimensional data of the sample roller is obtained. Based on the initial dimensional data of the sample roller and the previous real-time dimensional data, the previous real-time wear amount of the sample roller is obtained as the wear data.

[0094] Determine whether multiple rollers in the same production batch meet the quality evaluation indicators based on wear data:

[0095] If the maximum wear value of the sample roller is X maxIf the wear amount of the sample roller does not exceed 20% of the size of the sample roller in the unworn state, and the average wear amount of the sample roller does not exceed 10% of the size of the sample roller in the unworn state, and there are no surface defects such as cracks, pits or metal blocks on the surface of the sample roller, then multiple rollers of the same production batch meet the durability requirements under the actual working conditions corresponding to the test settings.

[0096] If the maximum value of the wear of the sample rollers, the average value of the wear of the sample rollers and the surface morphology of the sample rollers do not meet any of the above conditions, then multiple rollers from the same production batch may not meet the durability requirements under the actual working conditions corresponding to the test settings, and it is necessary to further evaluate the quality of the rollers of this production batch in combination with other forms of wear tests to determine whether the design or manufacturing of the rollers should be optimized.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solution for protection of the present invention.

Claims

1. A tracked vehicle track wheel wear test device, characterized in that: include: Base (1); A bearing device is arranged on the base (1), comprising two bearing surfaces arranged side by side and extending in a first direction, the two bearing surfaces being configured to respectively support the two crawler mechanisms of the crawler vehicle for passage in a roller wear test, the side of at least one bearing surface away from the other bearing surface being different in height from the side close to the other bearing surface, the bearing surface with a side away from the other bearing surface being different in height from the side close to the other bearing surface being an inclined surface, so that after the crawler vehicle enters the bearing device, at least a portion of the track shoe (53) of the crawler vehicle fits against the bearing surface, a portion of the roller (51) of at least one crawler mechanism of the crawler vehicle contacts the track link (52), and another portion is separated from the track link (52); and The detection device is configured to obtain wear data of the rear supporting wheels (51) of the tracked vehicle after the tracked vehicle passes on the carrying device.

2. The track roller wear test device according to claim 1, characterized in that: A side of at least one of the bearing surfaces that is away from the other bearing surface is higher than a side that is close to the other bearing surface.

3. The track roller wear test device according to claim 2, characterized in that: A side of any one of the bearing surfaces that is away from the other bearing surface is higher than a side that is close to the other bearing surface.

4. The track roller wear test device according to claim 1, characterized in that: The distance between the two bearing surfaces is adjustable.

5. The track roller wear test device according to any one of claims 1 to 4, characterized in that: The carrying device comprises: Two support rails (3), the upper surfaces of the two support rails (3) respectively comprising the two bearing surfaces; and A plurality of sleepers (2) are arranged side by side on the base (1) along the first direction, and the two support rails (3) are arranged on the plurality of sleepers (2).

6. The track roller wear test device according to claim 5, characterized in that: At least one of the two support rails (3) is connected to the plurality of sleepers (2) in a positionally adjustable manner.

7. The track roller wear test device according to claim 6, characterized in that: The road sleeper (2) comprises: pillow body; and A plurality of groups of first fixing holes (22) are arranged side by side along the length direction of the sleeper body, each group of the first fixing holes (22) comprises a plurality of the first fixing holes (22) arranged on the sleeper body along the width direction of the sleeper body, and the two support rails (3) can be selectively fixed to the sleeper (2) through some of the first fixing holes (22) of the plurality of groups of the first fixing holes (22).

8. The track roller wear test device according to claim 5, characterized in that: At least one of the support rails (3) comprises: A bottom plate (31) fixedly connected to the sleeper (2); an inclined plate (32) arranged obliquely relative to the bottom plate (31), wherein the upper surface of the inclined plate (32) includes the bearing surface; and The rib plate (33) is fixedly connected between the bottom plate (31) and the inclined plate (32).

9. A method for testing the wear of a track roller based on the track roller wear testing device according to any one of claims 1 to 8, characterized in that: include: Selecting a sample roller from a plurality of rollers of the same production batch, and installing the sample roller on a tracked vehicle; performing at least one wear test, each of the wear tests comprising driving the tracked vehicle through the load-bearing device along the first direction on the two load-bearing surfaces; Acquiring wear data of the sample rollers of the tracked vehicle after performing the at least one wear test; Determining whether a plurality of the track rollers of the same production batch meet the quality evaluation index according to the wear data; Wherein, in at least one wear test of all the wear tests performed on the track wheel wear test device, the tracked vehicle stops traveling at least once and performs engineering work while stopping traveling.

10. The method for testing the wear of a track roller according to claim 9, characterized in that: Acquiring the wear data includes: After performing the wear test once or multiple times, obtaining real-time dimension data of the sample roller; The real-time wear amounts of the sample rollers are obtained based on the initial dimension data for characterizing the dimensions of the sample rollers in an unworn state and the real-time dimension data. The wear data includes the real-time wear amounts.

11. The method for testing the wear of a track roller according to claim 10, characterized in that: Before carrying out the wear test, it also includes: Conducting a test run on the tracked vehicle equipped with the sample rollers; The dynamic data of the tracked vehicle during the test run are obtained, wherein the dynamic data include the rolling torque of the sample roller, the radial displacement of the sample roller, and the axial displacement of the sample roller.

12. The method for testing the wear of a track roller according to claim 11, characterized in that: After the test run and before the wear test, the method further includes: Running-in the tracked vehicle equipped with the sample rollers; Acquiring running-in dimension data for characterizing the dimensions of the sample rollers of the tracked vehicle after the running-in and the dynamic data of the tracked vehicle during the running-in process; The wear amount of each of the sample rollers after the running-in is obtained according to the initial dimension data and the running-in dimension data.

13. The method for testing the wear of a track roller according to claim 12, characterized in that: The tracked vehicle is run-in at a maximum travel speed.

14. The method for testing wear of a track roller according to any one of claims 9 to 13, characterized in that: The wear test is performed on the tracked vehicle at a maximum travel speed on the track wheel wear test device.

15. The method for testing the wear of a track roller according to any one of claims 9 to 13, characterized in that: The quality evaluation index includes the maximum wear amount of the sample roller, the average wear amount of the sample roller and the surface morphology of the sample roller. The maximum wear amount of the sample roller is X max and the average wear amount of the sample rollers X avg Satisfies the following relationship: Where n represents the number of sample rollers, x i Represents the wear amount of the i-th sample roller.

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