Jolt test device

Abstract

The utility model relates to the technical field of tests, and discloses a bump test device, which is used for bump tests of vehicles and comprises a test bench base, a console, a rotating member and an obstacle profiling member. A bearing surface for parking a vehicle is formed on the test bench base. The console is connected with a driving part of the vehicle and drives wheels of the vehicle to rotate. The rotating part is rotatably installed on the test bench base and located on the bearing surface, and the rotating part is used for rotating along the axis of the rotating part relative to the test bench base under the driving of the wheel. The obstacle profiling pieces are arranged on the surface of the rotating piece and used for bumping wheels, bumping fall is formed between the obstacle profiling pieces and the surface of the rotating piece, and the multiple obstacle profiling pieces are arranged in the circumferential direction of the rotating piece. According to the bump test device provided by the utility model, the console drives the wheels to rotate so as to drive the rotating member to rotate relative to the test bench base, and the bump fall of the obstacle profiling member on the rotating member is adjusted, so that the accuracy of simulating the actual working condition of the vehicle is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tests, and particularly relates to a bump test device. Background Art

[0002] For a corn harvester, when harvesting corn in the field, the field environment is relatively complex, and the passing road conditions include pits, slopes, stones, etc. When the corn harvester works for a long time under such complex working conditions, each component and the frame will be subjected to load impacts, and the whole machine system will have bumpy vibrations, and even fatigue fractures may occur. Therefore, fully verifying the bumpy vibration conditions of the whole vehicle system, key components and the frame of the corn harvester under complex working conditions is of great significance for improving the stability and durability of the whole machine system of the corn harvester. There are technical problems of low accuracy in simulating actual working conditions in the existing tests. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a bump test device to solve the technical problem of low accuracy in simulating the actual working conditions of vehicles in the existing technology.

[0004] To achieve the above purpose, the utility model provides a bump test device for the bump test of a vehicle. The bump test device includes:

[0005] A test bench base formed with a bearing surface for the vehicle to park;

[0006] A console for connecting the driving parts of the vehicle and driving the wheels of the vehicle to rotate;

[0007] A rotating part rotatably installed on the test bench base and located on the bearing surface. The rotating part is used to rotate relative to the test bench base along the axis of the rotating part under the drive of the wheels;

[0008] An obstacle profiling part arranged on the surface of the rotating part and used to bump the wheels. A bump height difference is formed between the obstacle profiling part and the surface of the rotating part, and a plurality of obstacle profiling parts are arranged along the circumferential direction of the rotating part.

[0009] In an embodiment of the utility model, the vehicle is equipped with a plurality of working implements. The console is used to be electrically connected to the plurality of working implements and used to adjust the working conditions of the working implements.

[0010] In an embodiment of the utility model, the bump test device further includes a base cross beam. One rotating part is arranged on each side of the test bench base along the first horizontal direction of the wheels. The two rotating parts are installed on the test bench base through the base cross beam. A placement space for the wheels to extend into is formed between the two rotating parts. A plurality of installation positions are arranged on the base cross beam, and the placement width of the placement space is adjusted by setting the rotating parts at different installation positions.

[0011] In an embodiment of the present utility model, the bump test device further includes a mounting seat, which is detachably connected to the base cross beam and is formed with a plug hole. The rotating member includes a rotating shaft portion and a drum portion. The axially extending ends of the rotating shaft portion are inserted into the plug holes, and an obstacle profiling member is provided on the drum portion. The drum portion and the rotating shaft portion are integrally formed.

[0012] In an embodiment of the present utility model, a clearance is formed between the two axial ends of the drum portion and the mounting seat.

[0013] In an embodiment of the present utility model, the bump test device further includes a displacement sensing member installed on the test bench base. The displacement sensing member is electrically connected to the control console, and the control console is configured to stop or start the driving member according to the vehicle displacement information fed back by the displacement sensing member.

[0014] In an embodiment of the present utility model, the bump test device further includes safety piles. A plurality of safety piles are provided on both sides of the test bench base along the second horizontal direction. A protection space is formed by enclosing the plurality of safety piles, and the bearing surface is located within the protection space. The safety piles are used to resist the wheels along the second horizontal direction.

[0015] In an embodiment of the present utility model, the bump test device further includes columns. A plurality of columns are arranged circumferentially around the test bench base, and fixing ropes for connecting the vehicle axle are provided on the columns.

[0016] In an embodiment of the present utility model, the bump test device further includes a data acquisition mechanism and sensors. The data acquisition mechanism and the sensors are electrically connected, and the data acquisition mechanism is configured to collect vibration signals of the vehicle frame through the sensors.

[0017] In an embodiment of the present utility model, the test bench base includes a flat slope portion and a slope portion. The bearing surface is provided on the flat slope portion. The slope portion is arranged along the length direction of the test bench base and is connected to the flat slope portion. The slope portion gradually tapers in height from the first end close to the flat slope portion to the second end away from the flat slope portion to form a gentle slope, and the height of the second end of the slope portion is adapted to that of the flat slope portion;

[0018] and / or,

[0019] The number of the obstacle profiling members is multiple, and the convex surfaces of each obstacle profiling member are all different;

[0020] and / or,

[0021] The number of the obstacle profiling members is multiple, and the bump height differences between the surfaces of each obstacle profiling member and the rotating member are all different.

[0022] Through the above technical solutions, the bump test device provided by the embodiment of the present utility model has the following beneficial effects:

[0023] The bump test device in this embodiment is used for the bump test of vehicles. The bump test device includes a test bench base, a console, a rotating member, and an obstacle profiling member. A bearing surface for the vehicle to park is formed on the test bench base. The rotating member is rotatably arranged on the bearing surface, and a plurality of obstacle profiling members are formed on the surface of the rotating member. The plurality of obstacle profiling members are arranged along the circumferential direction of the rotating member. When a bump test needs to be carried out on the vehicle, first drive the vehicle onto the bearing surface of the test bench base so that the wheels are correspondingly pressed against the rotating member, and then start the driving member through the console. Drive the wheels to rotate through the driving member. The rotating wheels can drive the rotating member to rotate relative to the test bench base. Since there is a bump height difference formed between the obstacle profiling member and the surface of the rotating member, when the wheel contacts the obstacle profiling member, the vehicle will generate bumps. Further, different bump test effects can be achieved by adjusting the bump height difference of the obstacle profiling member. When the bump height differences of the plurality of obstacle profiling members are different, different bump effects can be fed back to the vehicle when the wheels contact, and the actual working conditions of the vehicle can be better simulated. The bump test device of the present utility model drives the wheels to rotate through the console to drive the rotating member to rotate relative to the test bench base, without the need for additional external components to drive the rotating member, can effectively simulate the actual bump working conditions of the vehicle, and effectively improves the accuracy of simulating the actual working conditions of the vehicle by adjusting the bump height difference of the obstacle profiling member on the rotating member.

[0024] Other features and advantages of the embodiments of the present utility model will be described in detail in the subsequent specific embodiment part. Brief Description of the Drawings

[0025] The drawings are used to provide a further understanding of the embodiments of the present utility model, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present utility model, but do not constitute a limitation to the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts. In the drawings:

[0026] Figure 1 It is a schematic structural diagram of the vehicle cooperating with the test bench base according to the present utility model;

[0027] Figure 2 It is a schematic structural diagram of the bump test device according to the present utility model;

[0028] Figure 3 It is a schematic structural diagram of the test bench base according to the present utility model;

[0029] Figure 4 It is a schematic structural diagram of the rotating member according to the present utility model.

[0030] Description of the Reference Numerals

[0031] 1 Test bench base 6 Mounting seat

[0032] 11 Loading surface 7 Displacement sensing element

[0033] 12 Flat slope part 8 Safety pile

[0034] 13 Slope part 9 Column

[0035] 2 Control console 10 Fixed rope

[0036] 3 Rotating part 20 Data acquisition mechanism

[0037] 31 Rotating shaft part 30 Driving control lead

[0038] 32 Drum part 40 Displacement sensing signal wire

[0039] 4 Obstacle profiling part 50 Data acquisition signal wire

[0040] 5 Base cross beam 100 Wheel Detailed implementation manners

[0041] The following will describe in detail the detailed implementation manners of the present utility model with reference to the accompanying drawings. It should be understood that the detailed implementation manners described herein are only for explaining and illustrating the present utility model, and are not used to limit the present utility model.

[0042] The following describes a bump test device according to the present utility model with reference to the accompanying drawings.

[0043] As shown in Figure 1 、 Figure 2 and Figure 3 In this embodiment, a bump test device for a vehicle is proposed. The bump test device includes a test bench base 1, a control console 2, a rotating part 3 and an obstacle profiling part 4. A loading surface 11 for parking the vehicle is formed on the test bench base 1. The control console 2 is used to connect to the driving part of the vehicle and drive the wheels 100 of the vehicle to rotate. The rotating part 3 is rotatably mounted on the test bench base 1 and is located on the loading surface 11. The rotating part 3 is used to rotate relative to the test bench base 1 along the axis of the rotating part 3 under the drive of the wheels 100. The obstacle profiling part 4 is arranged on the surface of the rotating part 3 and is used to bump the wheels 100. A bump height difference is formed between the surface of the obstacle profiling part 4 and the surface of the rotating part 3. A plurality of obstacle profiling parts 4 are arranged along the circumferential direction of the rotating part 3. Wherein the first horizontal direction is the front-back direction in the figure, the second horizontal direction is the left-right direction in the figure, and the first horizontal direction is perpendicular to the second horizontal direction.

[0044] The bump test device of the present utility model is applicable to the corn harvester in the prior art, and can simulate the complex road environment in the field to test the stability and durability of the whole vehicle. The driving member adopts the engine in the prior art. When performing bump tests on different vehicles, it only needs to be connected to the driving systems of different vehicles through the driving control lead wire 30 connected to the console 2. Among them, both the console 2 and the data acquisition mechanism 20 can be realized by using the computer in the prior art.

[0045] The bump test device in this embodiment is used for the bump test of a vehicle. The bump test device includes a test bench base 1, a console 2, a rotating member 3, and an obstacle profiling member 4. A bearing surface 11 for the vehicle to park is formed on the test bench base 1. The rotating member 3 is rotatably arranged on the bearing surface 11. A plurality of obstacle profiling members 4 are formed on the surface of the rotating member 3, and the plurality of obstacle profiling members 4 are arranged circumferentially along the rotating member 3. When a bump test needs to be performed on the vehicle, first drive the vehicle onto the bearing surface 11 of the test bench base 1 so that the wheels 100 are correspondingly pressed against the rotating member 3. Then, start the driving member through the console 2, and drive the wheels 100 to rotate through the driving member. The rotating wheels 100 can drive the rotating member 3 to rotate relative to the test bench base 1. Since there is a bump height difference formed between the obstacle profiling member 4 and the surface of the rotating member 3, when the wheels 100 contact the obstacle profiling member 4, the vehicle will generate bumps, which can simulate the actual working conditions of the vehicle. Further, different bump test effects can be achieved by adjusting the bump height difference of the obstacle profiling member 4. When the bump height differences of the plurality of obstacle profiling members 4 are different, different bump effects can be fed back to the vehicle when the wheels 100 contact, which can better simulate the actual working conditions of the vehicle. The bump test device of the present utility model drives the wheels 100 to rotate through the console 2 to drive the rotating member 3 to rotate relative to the test bench base 1, without the need for additional external components to drive the rotating member 3, can effectively simulate the actual bump working conditions of the vehicle, and effectively improves the accuracy of simulating the actual working conditions of the vehicle by adjusting the bump height difference of the obstacle profiling member 4 on the rotating member 3.

[0046] Such as Figure 1 And Figure 2As shown, in this embodiment, four wheels 100 are provided on the vehicle. A rotating member 3 is provided in front of and behind each wheel 100. The bump test device further includes a base cross beam 5. On both sides of the test bench base 1 along the first horizontal direction of the wheel 100, a rotating member 3 is provided. The two rotating members 3 are installed on the test bench base 1 through the base cross beam 5. A placement space for the wheel 100 to extend into is formed between the two rotating members 3, which can form a certain limiting effect on the wheel 100, making it not easy for the wheel 100 to slip off the rotating member 3. A plurality of installation positions are provided on the base cross beam 5 along the first horizontal direction. By setting the rotating member 3 at different installation positions, the placement width of the placement space can be adjusted. Specifically, installation holes can be provided at different installation positions, and the width of the placement space can be adjusted by fixing the rotating member 3 at the installation holes at different positions. Further, the installation holes can also be waist-shaped holes. Different positions of the waist-shaped holes correspond to different installation positions, which can improve the flexibility of adjusting the placement width of the placement space. According to wheels 100 of different sizes, the rotating member 3 can be adjusted to different installation hole positions, so as to realize the adjustment of the distance between the two rotating members 3, making the placement width of the placement space adapt to the wheel 100, which is beneficial to improving the stability of the relative movement between the wheel 100 and the rotating member 3.

[0047] As Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the bump test device further includes a mounting seat 6. The mounting seat 6 is detachably connected to the base cross beam 5 and is formed with a plug hole. The rotating member 3 includes a rotating shaft portion 31 and a roller portion 32. The axially extending ends of the rotating shaft portion 31 are inserted into the plug holes. An obstacle profiling member 4 is provided on the roller portion 32. The roller portion 32 and the rotating shaft portion 31 are integrally formed, and the cooperation stability is good, avoiding wear caused by relative movement between the roller portion 32 and the rotating shaft portion 31 due to the roller portion 32 being movably connected to the rotating shaft portion 31, resulting in easy loss of the workpiece. On the one hand, the detachably provided mounting seat 6 is beneficial to adjusting the placement width of the placement space by adjusting the position of the mounting seat 6 on the base cross beam 5. On the other hand, it is also convenient to disassemble and replace the rotating member 3 on the mounting seat 6, facilitating the simulation of bump conditions under different working conditions by replacing different rotating members 3, and also being beneficial to the maintenance and replacement of the rotating member 3. Among them, the connection mode between the roller portion 32 and the obstacle profiling member 4 in the present utility model adopts a welding form. Of course, other connection forms can also be adopted. Fixing holes are also provided on the mounting seat 6. Bolts sequentially pass through the fixing holes and the mounting holes to connect and fix the mounting seat 6, the base cross beam 5, and the test bench base 1.

[0048] In this embodiment, a clearance is formed between the two axial ends of the drum part 32 and the mounting seat 6. The purpose of setting this clearance is, on the one hand, to avoid wear between the workpieces caused by the contact between the drum part 32 and the mounting seat 6, and on the other hand, to avoid the interference caused by the contact between the drum part 32 and the mounting seat 6 from affecting the normal rotation of the rotating part 3, thereby affecting the accuracy of the bump test.

[0049] As Figure 1 and Figure 2 shown, in this embodiment, the bump test device further includes a displacement sensor 7 mounted on the test bench base 1. The displacement sensor 7 is electrically connected to the console 2. The displacement sensor 7 is used to detect the displacement information of the vehicle according to the displacement information of the vehicle fed back by the displacement sensor 7. Specifically, it can be set on the wheel 100 to detect the displacement information of the wheel 100, and stop or start the driving part. When the distance value is equal to or exceeds the predetermined value, the displacement sensor 7 transmits a pause signal to the console 2, and the console 2 closes the driving part according to the pause signal. In this embodiment, by using the displacement sensor 7 to monitor the relative distance between the left rear wheel 100 and the displacement sensor 7 in real time, it can be ensured that during the bump test of the vehicle, if the wheel 100 moves away from the initial position and approaches the displacement sensor 7, the displacement sensor 7 can timely feedback the pause signal to the console 2 through the displacement sensing signal line 40, and stop the driving part through the console 2 to avoid the vehicle continuing to drive along the first horizontal direction and getting off the test bench base 1, causing a test accident. In this embodiment, the displacement sensor 7 is set between the front and rear wheels 100. Of course, the displacement sensor 7 can also be set at other positions, as long as it can monitor the change of the distance between the wheel 100 and the displacement sensor 7 in the first horizontal direction in real time. The displacement sensor adopts a displacement sensor in the prior art.

[0050] As Figure 1 and Figure 2 shown, in this embodiment, the bump test device further includes safety piles 8. A plurality of safety piles 8 are arranged on both sides of the test bench base 1 along the second horizontal direction. A protective space is formed between the plurality of safety piles 8, and the bearing surface 11 is located within the protective space. The safety piles 8 are used to resist the wheels 100 along the second horizontal direction, which can prevent the vehicle from shifting and avoid the wheels 100 from slipping off the test bench base 1 along the second horizontal direction during the process of rotating in cooperation with the rotating part 3. Among them, in this embodiment, one safety pile 8 is arranged on the left or right side of each wheel 100. In other embodiments, multiple safety piles 8 can be set on the left or right side of each wheel 100 to further improve the protection effect.

[0051] As Figure 1As shown, in this embodiment, the bump test device further includes columns 9. A plurality of columns 9 are arranged circumferentially along the test bench base 1. A fixing rope 10 for connecting the vehicle's upper axle is provided on the columns 9. One column 9 is provided at each of the four corners of the test bench base 1. A fixing rope 10 is provided at the top of the column 9. One end of the fixing rope 10 is connected to the column 9, and the other end is fixed to the vehicle's axle. The axle is fixed by four fixing ropes 10 to jointly play a role in restraining and fixing the vehicle, preventing the vehicle from detaching from the test bench base 1 during the bump test. Among them, the number of columns 9 and fixing ropes 10 may not be only set to four, and the number of columns 9 and fixing ropes 10 can be adjusted according to actual needs. In addition, other devices or methods can also be used to fix the vehicle, as long as the effect of fixing the vehicle can be achieved. The fixing rope 10 can be an iron chain in the prior art.

[0052] As Figure 1 shown, in this embodiment, the bump test device further includes a data acquisition mechanism 20 and sensors. The sensors can be arranged on the vehicle frame. The data acquisition mechanism 20 is electrically connected to the sensors. The data acquisition mechanism 20 is used to collect the vibration information of the vehicle frame through the sensors. The number of sensors is multiple, including acceleration sensors and strain sensors. The acceleration sensors and strain sensors are connected to the data acquisition mechanism 20 through data acquisition signal lines 50. The data acquisition mechanism 20 can collect and monitor the bump test situation of the vehicle in real time.

[0053] As Figure 1 shown, in this embodiment, the test bench base 1 includes a flat slope portion 12 and a slope portion 13. The bearing surface 11 is arranged on the flat slope portion 12. The slope portion 13 is arranged along the length direction of the test bench base 1 and is connected to the flat slope portion 12. The slope portion 13 forms a gentle slope with a gradually decreasing height from the first end close to the flat slope portion 12 to the second end away from the flat slope portion 12. The height of the second end of the slope portion 13 is adapted to that of the flat slope portion 12. Along the second horizontal direction, slope portions 13 are provided at both the front and rear ends of the slope portion 13. The arrangement of the slope portion 13 facilitates the vehicle to drive onto the flat slope portion 12 through the slope portion 13, eliminating the need to lift the vehicle onto the test bench base 1 separately, reducing the operation difficulty and operation cost.

[0054] In this embodiment, a plurality of working implements are carried on the vehicle. The console 2 is used to be electrically connected to the plurality of working implements and is used to adjust the working conditions of the working implements. Among them, the working implements include a plurality of rotating system components such as a cutting table, a straw returning machine, and a peeling machine. When driving the wheels 100 to rotate through the console 2, the cutting table, the straw returning machine, and the peeling machine can be selectively turned on to simulate the vibration of the whole vehicle when multiple transmission systems are in operation, so as to more realistically reflect the bump situation of the vehicle under actual working conditions.

[0055] As Figure 4As shown, preferably, the number of the obstacle profiling members 4 is three. The obstacle profiling members 4 are respectively a fan-shaped protrusion, a triangular protrusion, and a circular protrusion. The fan-shaped protrusion, the triangular protrusion, and the circular protrusion are arranged at intervals on the surface of the rotating member 3 and have different bump height differences.

[0056] Among them, the number of the obstacle profiling members is multiple, and the convex surfaces of each obstacle profiling member are different. The number of the obstacle profiling members is multiple, and the bump height differences between the surfaces of each obstacle profiling member and the rotating member are different. The obstacle profiling members 4 with different shapes have different bump effects on the wheel 100, and can expand the solutions for simulating the bump test road surface. Further, setting different obstacle profiling members 4 with different bump height differences can also achieve different bump effects, further expanding the solutions for simulating the bump test road surface. The interval distance between the multiple obstacle profiling members 4 also affects the bump effect of the wheel 100. By setting different interval distances for the multiple obstacle profiling members 4, the solutions for simulating the bump test road surface can also be expanded.

[0057] It should be noted that the number of the obstacle profiling members 4 can be set according to actual needs, or multiple obstacle profiling members 4 with the same shape can be arranged on the surface of the rotating member 3, with different bump height differences or different interval distances between the multiple obstacle profiling members 4. The factors that can affect the number of solutions for simulating the bump test road surface can be combined to obtain more solutions.

[0058] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0059] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0061] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A bump test device for a vehicle bump test, characterized in that: The bump test device comprises: A test bench base (1) is formed with a bearing surface (11) for parking the vehicle; A control console (2) for connecting to a driving member of the vehicle and driving the wheels (100) of the vehicle to rotate; A rotating member (3) is rotatably mounted on the test bench base (1) and is located on the bearing surface (11); the rotating member (3) is used to rotate relative to the test bench base (1) along the axis of the rotating member (3) under the drive of the wheel (100); An obstacle profiling member (4) is arranged on the surface of the rotating member (3) and is used to bump the wheel (100), a bump height difference is formed between the obstacle profiling member (4) and the surface of the rotating member (3), and a plurality of the obstacle profiling members (4) are arranged along the circumference of the rotating member (3).

2. The bump test device according to claim 1, characterized in that: The vehicle is equipped with a plurality of working machines and the control console (2) is used to be electrically connected to the plurality of working machines and to adjust the working conditions of the working machines.

3. The bump test device according to claim 1, characterized in that: The bump test device further comprises a base crossbeam (5); a rotating member (3) is respectively arranged on both sides of the test bench base (1) along the first horizontal direction of the wheel (100); the two rotating members (3) are mounted on the test bench base (1) via the base crossbeam (5); a storage space for the wheel (100) to extend into is formed between the two rotating members (3); a plurality of mounting positions are arranged on the base crossbeam (5); and the storage width of the storage space is adjusted by arranging the rotating member (3) at different mounting positions.

4. The bump test device according to claim 3, characterized in that: The bump test device also includes a mounting seat (6), the mounting seat (6) is detachably connected to the base cross beam (5) and is formed with a plug-in hole, the rotating member (3) includes a rotating shaft portion (31) and a roller portion (32), the ends of the rotating shaft portion (31) extending in the axial direction are both plugged into the plug-in hole, the obstacle profiling member (4) is arranged on the roller portion (32), and the roller portion (32) and the rotating shaft portion (31) are integrally formed.

5. The bump test device according to claim 4, characterized in that: An escape gap is formed between the two ends of the roller portion (32) along the axial direction and the mounting seat (6).

6. The bump test device according to any one of claims 1 to 5, characterized in that: The bump test device also includes a displacement sensor (7) installed on the test bench base (1), the displacement sensor (7) being electrically connected to the control console (2), and the control console (2) being used to shut down or start the driving element according to the vehicle displacement information fed back by the displacement sensor (7).

7. The bump test device according to any one of claims 1 to 5, characterized in that: The bump test device also includes safety piles (8), a plurality of the safety piles (8) are arranged on both sides of the test bench base (1) along the second horizontal direction, a protection space is enclosed between the plurality of safety piles (8), the bearing surface (11) is located in the protection space, and the safety piles (8) are used to resist the wheel (100) along the second horizontal direction.

8. The bump test device according to any one of claims 1 to 5, characterized in that: The bump test device also includes a column (9), a plurality of the columns (9) are arranged along the circumference of the test bench base (1), and a fixing rope (10) connected to the vehicle axle is provided on the column (9).

9. The bump test device according to any one of claims 1 to 5, characterized in that: The bump test device also includes a data acquisition mechanism (20) and a sensor. The data acquisition mechanism (20) is electrically connected to the sensor. The data acquisition mechanism (20) is used to acquire vibration signals of the vehicle frame through the sensor.

10. The bump test device according to any one of claims 1 to 5, characterized in that: The test bench base (1) comprises a flat slope portion (12) and a slope portion (13), the bearing surface (11) is arranged on the flat slope portion (12), the slope portion (13) is arranged along the length direction of the test bench base (1) and is connected to the flat slope portion (12), the slope portion (13) gradually decreases in height from a first end close to the flat slope portion (12) to a second end away from the flat slope portion (12) to form a gentle slope, and the second end of the slope portion (13) is adapted to the height of the flat slope portion (12); and / or, The number of the obstacle profiling members (4) is plural, and the convex surfaces of the obstacle profiling members (4) are all different; and / or, The number of the obstacle profiling members (4) is multiple, and the bump height difference between each obstacle profiling member (4) and the surface of the rotating member (3) is different.

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