Wheel impact test fixture

Abstract

This application relates to the field of vehicle crash testing technology and provides a wheel crash testing fixture. The wheel crash testing fixture of this application includes a mounting frame, a lifting frame, and a support beam, and the support beam has a hub mounting portion for fixing the wheel to be tested. The mounting frame includes a base plate for connecting to a barrier and a lifting arm disposed on the base plate; the lifting arm extends away from the base plate, and a support beam connecting the base plate and the lifting arm is disposed below the lifting arm; the lifting frame is swayably disposed at the end of the lifting arm away from the base plate, and the support beam is disposed at the bottom of the lifting frame, and the support beam can move its position in the collision direction of the wheel as the lifting frame swings. The wheel crash testing fixture of this application can effectively simulate the force state of a vehicle wheel during a collision, thus providing a fixture manufacturing solution suitable for crash testing of vehicle wheels.

Description

Technical Field

[0001] This application relates to the field of vehicle collision testing technology, and in particular to a wheel collision testing fixture. Background Technology

[0002] During vehicle operation, there is a risk of collision. The collision safety performance requirements for vehicles, particularly those designed for low-overlap collisions at medium to high speeds, impose stringent safety design requirements. Therefore, professional collision testing equipment is needed to test the vehicle's collision performance under these conditions to ensure that the vehicle as a whole and its components meet collision safety protection requirements.

[0003] In small overlap crash tests, the overlap area between the barrier and the vehicle is only about 25% of the vehicle width, meaning the vehicle's longitudinal beams generally cannot absorb energy. A key force transmission path is that the barrier compresses the wheel, which then impacts the A-pillar. Under this path, the wheel rims of many vehicle models will fracture to varying degrees during the collision, and the degree of rim fracture significantly affects the crash performance under this condition. Due to differences in rim materials, manufacturing processes, and impact locations, the fracture patterns of wheel rims differ, and comparing computer simulations with experimental benchmarks is difficult. Therefore, research on the collision characteristics of wheels is crucial.

[0004] However, verifying the collision characteristics of the wheel subsystem through whole vehicle crash tests is expensive and difficult to conduct on a large scale; and the lack of dedicated crash testing equipment for the wheel subsystem makes it difficult to conduct experimental research on wheel collision characteristics. Utility Model Content

[0005] In view of this, this application aims to provide a wheel collision test fixture, so as to provide a fixture manufacturing solution suitable for collision testing of vehicle wheels.

[0006] To achieve the above objectives, the technical solution of this application is implemented as follows: A wheel collision test fixture includes a mounting frame, a lifting frame, and a support beam, wherein the support beam is provided with a wheel hub mounting part for fixing the wheel to be tested; The mounting frame includes a base plate for connecting to a barrier and a boom disposed on the base plate; the boom extends away from the base plate, and a support beam is provided below the boom connecting the base plate and the boom; the lifting frame is swayably disposed at the end of the boom away from the base plate, the supporting beam is disposed at the bottom of the lifting frame, and the supporting beam can move in position in the collision direction of the wheel as the lifting frame swings.

[0007] Furthermore, the support beam includes a support inclined beam and a support vertical beam; the support inclined beam extends from the bottom of the base plate toward the end of the boom away from the base plate and is connected to the boom, and the support vertical beam is vertically arranged between the support inclined beam and the boom.

[0008] Furthermore, the boom consists of two parallel booms, with a connecting beam between the two booms; the lifting frame is connected to the ends of the two booms.

[0009] Furthermore, the boom is provided with slots arranged along the length of the boom; the lifting frame includes adjusting rods respectively inserted into the slots of the two booms, a swing shaft connected between the two adjusting rods, and two lifting rods spaced apart on the swing shaft; the supporting beam is connected between the bottoms of the two lifting rods, and the length of the adjusting rod inserted into the slot is adjustable.

[0010] Furthermore, the bottom of the boom is provided with a lifting seat, and the lifting seat is provided with a mounting groove arranged along the width direction of the wheel collision test fixture, and the mounting beam is fixedly installed in the mounting groove in an adjustable position.

[0011] Furthermore, the hoisting frame also includes a support rod connected between the two hoisting rods; and / or, the mounting frame also includes a lifting lug disposed at the top of the boom.

[0012] Furthermore, it also includes a support frame disposed below the mounting bracket, the support frame being fixedly mounted on the barrier, and the support frame having a baffle disposed facing the wheel hub mounting portion.

[0013] Furthermore, the mounting beam includes two sub-beams that can be fixedly mounted on the lifting frame, and connecting rods respectively disposed on the two sub-beams; the two sub-beams and the two connecting rods are arranged on the same straight line along the width direction of the wheel collision test fixture, and the two connecting rods are located between the two sub-beams; the wheel hub mounting part includes wheel hub connecting flanges respectively disposed on the two connecting rods, and the wheel hub connecting flanges are disposed at the other end of the connecting rods relative to the end connected to the sub-beams, so that the wheel hub can be clamped and fixed between the two wheel hub connecting flanges.

[0014] Furthermore, the end of the beam body connected to the connecting rod is provided with a first connecting flange, and the end of the connecting rod away from the hub connecting flange is provided with a second connecting flange that matches the first connecting flange; the mounting hole on at least one of the first connecting flange and the second connecting flange is configured as an arc-shaped hole that allows the first connecting flange to rotate and adjust relative to the second connecting flange.

[0015] Furthermore, a gasket is sandwiched between the first connecting flange and the second connecting flange.

[0016] Compared with related technologies, this application has the following advantages: (1) The wheel collision test fixture of this application is provided with a mounting frame with a support beam. Since the boom extends from the side of the base plate away from the barrier in a direction away from the base plate, it is basically consistent with the collision direction of the wheel. The support beam is located below the boom and connected between the base plate and the boom. This makes the base plate, boom and support beam together form a triangular support structure, which provides a solid foundation for the hoisting of the hoisting frame. The mounting beam is set at the bottom of the hoisting frame. When the wheel is subjected to the impact test of the collision trolley by the swing of the hoisting frame, the wheel can move its position in the collision direction with the mounting beam, so that the impact force is applied to the wheel. This can well simulate the force state of the wheel when the vehicle is in a collision, thus providing a tooling manufacturing solution suitable for collision testing of vehicle wheels.

[0017] (2) By setting up inclined support beams, a triangular support frame can be formed by the support beams, the boom and the base plate; by setting up vertical support beams between the support beams and the boom, reliable support can be provided for the boom in the height direction, further improving the structural strength of the triangular frame and thus improving the overall structural stability of the mounting frame.

[0018] (3) Arranging two booms in parallel and setting several connecting beams between the two booms will make the two sets of triangular frames form a stable overall structure in the width direction of the entire fixture, providing better space conditions for the hoisting of the hoisting frame and providing a good foundation for the subsequent setting of the load-bearing beam arranged in the width direction of the wheel collision test fixture (i.e., the direction perpendicular to the collision direction).

[0019] (4) By setting slots on the boom and correspondingly setting adjusting rods that can be inserted into the slots for the lifting frame, the adjusting rods can be fixed to the boom by bolts when the insertion length of the adjusting rod is adjusted to a suitable position using the first fastening hole on the boom and the second fastening hole on the adjusting rod. By adjusting the insertion length of the adjusting rod, the position of the entire lifting frame in the collision direction can be changed, thereby adapting to the collision test requirements of wheels of different sizes, and also providing convenient conditions for the subsequent arrangement of the support frame and the obstruction of the wheel by the baffle of the support frame.

[0020] (5) A lifting seat with a mounting groove is set at the bottom of the lifting rod. After the mounting beam is adjusted to a suitable position, it can be fastened to the current position by bolts. By adjusting the fixed position of the mounting beam in the mounting groove, the position adjustment of the mounting beam in the width direction of the wheel collision test fixture is flexibly realized. This not only makes it convenient to adjust the collision test position of the wheel, but also, under the structure of the mounting beam using the following two-part beam body and connecting rod to clamp and fix the wheel, by adjusting the position of the two-part beam body on the corresponding side of the lifting seat, the mounting beam can be adapted to the installation requirements of wheels with different tire widths.

[0021] (6) Connecting several support rods between two parallel booms can effectively connect the two booms into one, thereby improving the overall structural stability of the hoisting frame. Installing lifting lugs at the top of the boom allows for the hoisting of the installation frame and the entire tooling using cranes or other equipment, facilitating the movement and handling of the tooling and its installation on obstacles.

[0022] (7) By configuring a support frame for the tooling, a good blocking structure is provided in front of the wheel's collision movement; during the entire collision test, after the collision trolley hits the wheel, the baffle of the support frame blocks the wheel's movement in time, and the baffle and the collision trolley squeeze the wheel, thus simulating the impact state of the wheel when the vehicle is hit more realistically.

[0023] (8) The mounting beam adopts a multi-segment splicing structure, which can better clamp and fix the wheel hub in the middle position of the mounting beam; the sub-beam is used to connect with the lifting seat at the bottom of the lifting frame, and the connecting rod is used to connect the sub-beam and the wheel hub, which makes it easier to flexibly assemble the various components and better realize the conversion and transition between different installation structures between the lifting seat and the wheel hub. The wheel hub mounting part adopts a structure of two wheel hub connecting flanges, which is not only easy to configure, but also can well adapt to the installation requirements of the wheel hub.

[0024] (9) A first connecting flange located on the sub-beam and a second connecting flange located on the connecting rod are provided in pairs, so that the connection between the sub-beam and the connecting rod can be reliably achieved using bolts. The mounting holes on one of the first and second connecting flanges are designed as arc-shaped holes with an arc distribution, which facilitates flexible adjustment of the relative angle between the connecting rod and the sub-beam and avoids the situation where the mounting holes on the first and second connecting flanges cannot be aligned.

[0025] (10) Adding a gasket between the first connecting flange and the second connecting flange can provide a good buffering and isolation effect, preventing the impact force of the wheel from being strongly transmitted to the sub-beam and the lifting frame, thereby improving the durability of the wheel collision test fixture. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application. The directional terms such as front / back, up / down, etc., used therein are only used to indicate relative positional relationships and do not constitute an improper limitation of this application. In the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of the wheel collision test fixture described in the embodiments of this application; Figure 2 This is a schematic diagram of the assembly structure of the mounting frame, lifting frame, and supporting beam described in the embodiments of this application; Figure 3 for Figure 2 A schematic diagram showing the disassembled structure of each component; Figure 4 for Figure 1 The front view of the wheel collision test fixture shown; Figure 5 for Figure 1 The side view of the wheel collision test fixture shown; Figure 6 for Figure 3 The diagram shows the assembly structure of the mounting beam and the hub. Figure 7 for Figure 6 The diagram shows the disassembled structure of each component.

[0027] Explanation of reference numerals in the attached figures: 1. Barrier; 10. Chassis; 100. Mounting slot; 2. Mounting bracket; 20. Base plate; 200. Mounting hole; 21. Lifting arm; 210. Slot; 211. First fastening hole; 22. Supporting inclined beam; 23. Supporting upright beam; 24. Connecting crossbeam; 25. Lifting lug; 3. Lifting frame; 30. Swing shaft; 31. Adjusting rod; 310. Second fastening hole; 32. Lifting rod; 330. Support crossbar; 331. Support diagonal bar; 34. Lifting seat; 340. Mounting groove; 341. Third fastening hole; 4. Mounting beam; 40. Sub-beam body; 400. Fourth fastening hole; 401. First connecting flange; 41. Connecting rod; 410. Hub connecting flange; 411. Second connecting flange; 42. Gasket; 5. Wheel hub; 500. Wheel hub mounting holes; 6. Support frame; 600. Baffle. Detailed Implementation

[0028] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0030] Furthermore, it should be stated in the description of this application that if terms indicating orientation or positional relationship, such as "up," "down," "left," "right," "front," "rear," "inner," and "outer," appear, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and for clarity and conciseness of expression, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this application. Taking the wheel collision test fixture described in this application as an example, the directional terms such as "up," "down," "left," "right," "front," and "rear" used in the embodiments are defined based on the fixture's vertical direction (also known as the height direction), horizontal direction (also known as the width direction), and front-back direction (also known as the length direction, which is also the collision direction of the collision tester moving to conduct the collision test on the wheel). Specifically, as shown in the accompanying drawings, the X direction is the vehicle's front-back direction, where the side pointed by the arrow is "front," and the opposite is "rear." The Y direction is the vehicle's left-right direction, where the side pointed by the arrow is "left," and the opposite is "right." The Z direction represents the vehicle's vertical movement, with the arrow pointing in one direction being "up" and the arrow pointing out the other being "down."

[0031] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joint," and "connector" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances. The qualifying terms such as "first," "second," "A," "B," "C," and "D" appearing in the description of this application are merely for distinguishing similar features in different locations, attributions, or uses, in order to avoid ambiguity and confusion, and should not be construed as indicating or implying relative importance.

[0032] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] In small overlap crash tests, the overlap area between the barrier and the vehicle is only about 25% of the vehicle width, and the vehicle's longitudinal beams generally cannot participate in energy absorption. A key force transmission path is that the barrier compresses the wheel, which then impacts the A-pillar. Under this path, the wheel rims of many vehicle models will fracture to varying degrees during the collision, and the degree of rim fracture significantly affects the crash performance under this condition. Due to differences in rim materials, manufacturing processes, and impact locations, the fracture patterns of wheel rims vary, and comparing computer simulations with experimental benchmarks is difficult. Therefore, research on the collision characteristics of wheels is crucial.

[0034] However, verifying the collision characteristics of the wheel subsystem through whole vehicle crash tests is expensive and difficult to conduct on a large scale; and the lack of dedicated crash testing equipment for the wheel subsystem makes it difficult to conduct experimental research on wheel collision characteristics.

[0035] In view of the above-mentioned problems in the related technologies, this application innovatively proposes a brand-new wheel collision test fixture, which can provide a fixture manufacturing solution suitable for collision testing of vehicle wheels.

[0036] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0037] Embodiments of this application provide a wheel collision testing fixture, applied to collision testing scenarios specifically targeting vehicle wheels; one exemplary structure is as follows: Figure 1 , Figure 2 and Figure 3 As shown.

[0038] Overall, the wheel collision test fixture includes a mounting frame 2, a lifting frame 3, and a support beam 4, with the support beam 4 having a hub mounting portion for fixing the wheel to be tested. The mounting frame 2 includes a base plate 20 that can connect to a barrier 1, and a lifting arm 21 mounted on the base plate 20. The lifting arm 21 extends away from the base plate 20, and a support beam connecting the base plate 20 and the lifting arm 21 is located below the lifting arm 21. The lifting frame 3 is swayably mounted at the end of the lifting arm 21 away from the base plate 20, and the support beam 4 is located at the bottom of the lifting frame 3, and the support beam 4 can move in the collision direction of the wheel as the lifting frame 3 swings.

[0039] Based on the overall design concept described above, by setting up a mounting frame 2 with a support beam, and since the boom 21 extends from the side of the base plate 20 away from the barrier 1 in a direction away from the base plate 20, which is basically consistent with the collision direction of the wheel, and the support beam is located below the boom 21 and connects the base plate 20 and the boom 21, the base plate 20, the boom 21 and the support beam together form a triangular support structure, providing a solid foundation for the hoisting of the lifting frame 3; the mounting beam 4 is set at the bottom of the lifting frame 3, and by swinging the lifting frame 3, when the wheel is subjected to the impact test of the collision trolley, the wheel can move its position in the collision direction with the mounting beam 4, so that the impact force is evenly applied to the wheel, which can well simulate the force state of the wheel when the vehicle is in a collision, thus providing a tooling manufacturing solution suitable for collision testing of vehicle wheels.

[0040] Based on the above overall design concept, such as Figure 1 As shown, in terms of overall design, the wheel collision test fixture in this embodiment mainly includes a barrier 1, a mounting frame 2, a lifting frame 3, a supporting beam 4, and a support frame 6. Of course, in order to successfully complete the wheel test, a collision trolley is also required, and the aforementioned wheel collision test fixture also needs to be fixedly mounted on a sturdy barrier 1.

[0041] In specific configuration, multiple mounting slots 100 can be horizontally arranged on the barrier 1, with nuts installed in the mounting slots 100. Multiple mounting holes 200 can be formed on the base plate 20 of the mounting frame 2. Bolts passing through the mounting holes 200 are screwed into the nuts located in the mounting slots 100 to fix the base plate 20 in the mounting slots 100, achieving reliable fixation of the base plate 20 on the barrier 1. Furthermore, by adjusting the position of the nuts in the mounting slots 100, or by selecting different mounting slots 100, the fixed position of the base plate 20 on the barrier 1 can be flexibly adjusted. Similarly, the support frame 6 can also be fixed to the nuts in the mounting slots 100 using bolts. To improve the robustness of the barrier 1, a chassis 10 can be installed at the bottom of the barrier 1, and support legs can be added to the bottom of the support frame 6, allowing the support legs to support the chassis 10. During the collision test, the collision trolley travels rapidly in the direction shown by X in the figure, impacting the wheels located on the support beam 4.

[0042] It should be noted that based on the above overall design concept, the technical solution of this application can adopt a variety of different specific implementation structures, forms or configuration sequences. For example, two or three of the above-mentioned jibs 21 can be arranged at intervals in the width direction of the wheel collision test tooling, or only one can be arranged; the lifting frame 3 can adopt different structural forms such as "H" shape and "day" shape. The specific setting sequence, assembly method, etc. of the mounting frame 2, the lifting frame 3, the loading beam 4, etc. can also be flexibly adjusted. For the parts required for the implementation of the overall solution but not involved in the above overall settings, reasonable and flexible designs can be made by referring to the mature setting means in the art, the actual situation during implementation, etc., which will not be elaborated here. The following specific implementation solutions of this embodiment are only one of the better ones among the many solutions that can be formed by the above various combinations and their variations. In actual implementation, those skilled in the art can make flexible adjustments and improvements in combination with the actual situation. Obviously, the many solutions that can be formed by the combinations and variations of the above various specific forms, as well as the specific implementation solutions of this embodiment, are all within the protection scope of this application.

[0043] Specifically, as Figure 2 and Figure 3 shown, in some of the more preferred exemplary implementation forms, the support beam of this embodiment includes a support inclined beam 22 and a support vertical beam 23. Among them, the support inclined beam 22 extends from the bottom of the base plate 20 towards the end of the jib 21 away from the base plate 20 and is connected to the jib 21, and the support vertical beam 23 is vertically arranged between the support inclined beam 22 and the jib 21; the specific number of the support vertical beams 23 can be flexibly selected. In this embodiment, between each group of jibs 21 and the support inclined beam 22, three support vertical beams 23 are arranged at intervals in the front-back direction of the tooling, which can greatly improve. The support strength of the support beam for the jib 21.

[0044] By setting the support inclined beam 22 arranged obliquely, a triangular support frame can be formed by the support inclined beam 22, the jib 21 and the base plate 20; by setting the support vertical beam 23 arranged vertically between the support inclined beam 22 and the jib 21, reliable support for the jib 21 can be formed in the height direction, further improving the structural strength of the triangular frame, and thus improving the overall structural stability of the mounting frame 2.

[0045] As previously mentioned, the number of the jibs 21 can be flexibly set within a reasonable range. In this embodiment, as Figure 3As shown, in some preferred exemplary embodiments, there are two booms 21 arranged in parallel, and three connecting beams 24 are provided between the two booms 21. Based on the above arrangement of the booms 21, the lifting frame 3 of this embodiment is connected to the ends of the two booms 21. Arranging the two booms 21 in parallel and providing several connecting beams 24 between the two booms 21 makes the two sets of triangular frames form a stable overall structure in the width direction of the entire fixture, providing better space conditions for the lifting of the lifting frame 3, and providing a good foundation for the subsequent setting of the mounting beam 4 arranged along the width direction of the wheel collision test fixture (i.e., the direction perpendicular to the collision direction).

[0046] Continue as Figure 2 and Figure 3 As shown, in some preferred exemplary embodiments, the boom 21 of this embodiment is provided with slots 210 arranged along the length of the boom 21; meanwhile, the lifting frame 3 includes adjusting rods 31 respectively inserted into the slots 210 of the two booms 21, a swing shaft 30 connected between the two adjusting rods 31, and two lifting rods 32 spaced apart on the swing shaft 30. Based on the above configuration, the supporting beam 4 of this embodiment is connected between the bottoms of the two lifting rods 32, and the length of the adjusting rods 31 inserted into the slots 210 is adjustable.

[0047] By providing a slot 210 on the boom 21 and a corresponding adjusting rod 31 that can be inserted into the slot 210 for the lifting frame 3, and utilizing the first fastening hole 211 on the boom 21 and the second fastening hole 310 on the adjusting rod 31, the adjusting rod 31 can be fixed to the boom 21 with bolts when the insertion length of the adjusting rod 31 is adjusted to a suitable position. By adjusting the insertion length of the adjusting rod 31, the position of the entire lifting frame 3 in the collision direction can be changed, thereby adapting to the collision test requirements of wheels of different sizes, and also providing convenient conditions for the subsequent arrangement of the support frame 6 and the obstruction of the wheel by the baffle 600 of the support frame 6.

[0048] In some preferred exemplary embodiments, a lifting seat 34 may be provided at the bottom of the lifting rod 32, and a mounting groove 340 arranged along the width direction of the wheel collision test fixture may be provided on the lifting seat 34, and the mounting beam 4 may be adjusted and fixed in the mounting groove 340. With the lifting seat 34 having the mounting groove 340 at the bottom of the lifting rod 32, and utilizing the third fastening hole 341 opened on the wall plate of the mounting groove 340, and the corresponding fourth fastening hole 400 provided on the mounting beam 4, after the mounting beam 4 is adjusted to a suitable position in the width direction of the wheel collision test fixture, it can be fastened to the current position by bolts. By adjusting the fixed position of the mounting beam 4 in the mounting groove 340, the position adjustment of the mounting beam 4 in the width direction of the wheel collision test fixture is flexibly realized. This not only makes it convenient to adjust the collision test position of the wheel, but also, with the mounting beam 4 using the following structure of clamping and fixing the wheel with two sets of beams 40 and connecting rods 41, by adjusting the position of the two sets of beams 40 on the corresponding side of the lifting seat 34, the mounting beam 4 can adapt to the installation requirements of wheels with different tire widths.

[0049] Similar to the arrangement of the boom 21 described above, the number of lifting rods 32 in the lifting frame 3 can also be flexibly selected; preferably, consistent with the arrangement of the boom 21, two lifting rods 32 are also arranged at intervals in the width direction of the tooling; each lifting rod 32 has a lifting seat 34 at its bottom; in this way, when the supporting beam 4 adopts the following two sub-beams 40, one sub-beam 40 is fixed in the mounting groove 340 of each lifting seat 34.

[0050] Based on the aforementioned arrangement of two suspension rods 32 at intervals, preferably, the hoisting frame 3 of this embodiment further includes support rods connecting the two suspension rods 32. The specific number and arrangement of the support rods can be flexibly arranged; in this embodiment, a horizontal support bar 330 is horizontally arranged between the two suspension rods 32, and an inclined support bar 331 is respectively arranged between the top of the support bar 330 and the tops of the two suspension rods 32, forming a stable triangular support structure. Connecting several support rods between the two parallel suspension rods 32 can effectively connect the two suspension rods 32 into a single unit, thereby improving the overall structural stability of the hoisting frame 3.

[0051] In addition, the mounting frame 2 in this embodiment also includes lifting lugs 25 disposed on the top of the boom 21; by providing lifting lugs 25 on the top of the boom 21, the mounting frame 2 and the entire tooling can be hoisted using equipment such as cranes, which facilitates the movement and transportation of the tooling and its installation on obstacles. The specific number of lifting lugs 25 can be flexibly selected. In this embodiment, each boom 21 is provided with two lifting lugs 25 at intervals. When two booms 21 are arranged in parallel on the base plate 20, four lifting lugs 25 are arranged on the entire mounting frame 2, which facilitates the stable transportation of the mounting frame 2 and the entire wheel collision test tooling using cranes, forklifts, etc.

[0052] Continue as Figure 4 and Figure 5 As shown, in some preferred exemplary embodiments, the wheel collision test fixture of this embodiment further includes a support frame 6 disposed below the mounting frame 2. The support frame 6 can be fixedly mounted on the barrier 1, and the support frame 6 has a baffle 600 facing the wheel hub mounting portion. By configuring the support frame 6 for the fixture, a good blocking structure is provided in front of the wheel's collision-induced movement; during the entire collision test, after the collision trolley impacts the wheel, the baffle 600 of the support frame 6 timely blocks the wheel's movement, and the baffle 600 and the collision trolley compress the wheel, thereby more realistically simulating the impact state of the wheel when the vehicle is hit.

[0053] Regarding the specific configuration of the supporting beam 4, there are naturally several different structural options to choose from; for example, a single beam structure or a split beam structure can be used. In this embodiment, as... Figure 6 and Figure 7 As shown, the mounting beam 4 includes two sub-beams 40 that can be fixedly mounted on the lifting frame 3, and connecting rods 41 respectively disposed on the two sub-beams 40. The two sub-beams 40 and the two connecting rods 41 are arranged in a straight line along the width direction of the wheel collision test fixture, with the two connecting rods 41 located between the two sub-beams 40. In this configuration, the wheel hub mounting part of this embodiment includes wheel hub connecting flanges 410 respectively disposed on the two connecting rods 41. The wheel hub connecting flanges 410 are disposed at the other end of the connecting rods 41, relative to one end of the connecting sub-beam 40; thus, the wheel hub 5 can be clamped and fixed between the two wheel hub connecting flanges 410.

[0054] When installing the wheel hub 5, bolts are passed through the hub mounting holes 500 on the hub 5 and the mounting holes on the hub connecting flange 410, and nuts are used to securely install the hub 5 onto the connecting rod 41. It can be seen that the multi-segment splicing structure of the mounting beam 4 better clamps and fixes the wheel hub 5 in the middle position of the mounting beam 4; the sub-beam 40 is used to connect with the lifting seat 34 at the bottom of the lifting frame 3, and the connecting rod 41 is used to connect the sub-beam 40 and the hub 5, which facilitates flexible assembly between components and better realizes the transition between different installation structures of the lifting seat 34 and the hub 5. The hub mounting part adopts a structure of two hub connecting flanges 410, which not only facilitates configuration but also adapts well to the installation requirements of the hub 5.

[0055] Furthermore, in this embodiment, one end of the connecting rod 41 connected to the sub-beam 40 is provided with a first connecting flange 401, and the end of the connecting rod 41 away from the hub connecting flange 410 is provided with a second connecting flange 411 that matches the first connecting flange 401. Preferably, the mounting hole on at least one of the first connecting flange 401 and the second connecting flange 411 is configured as an arc-shaped hole that allows the first connecting flange 401 to rotate relative to the second connecting flange 411 for adjustment. By pairing the first connecting flange 401 on the sub-beam 40 and the second connecting flange 411 on the connecting rod 41, the connection and installation between the sub-beam 40 and the connecting rod 41 can be reliably achieved using bolts. Designing the mounting hole on one of the first connecting flange 401 and the second connecting flange 411 as an arc-shaped hole facilitates flexible adjustment of the relative angular position between the connecting rod 41 and the sub-beam 40, avoiding the situation where the mounting holes on the first connecting flange 401 and the second connecting flange 411 cannot be aligned.

[0056] Based on the above configuration, a gasket 42 can also be sandwiched between the first connecting flange 401 and the second connecting flange 411. Adding a gasket 42 between the first connecting flange 401 and the second connecting flange 411 provides a good buffering and isolation effect, preventing the impact force from the wheel from being forcefully transmitted to the sub-beam 40 and the lifting frame 3, thereby improving the durability of the wheel collision test fixture.

[0057] Based on the above overall setup and combined with traditional wheel collision testing methods, it is evident that the wheel collision testing fixture of this application can significantly reduce the collision testing cost of the wheel subsystem. To improve the simulation accuracy of the wheel subsystem and ensure it aligns with the failure modes of whole-vehicle testing, and considering the high cost of whole-vehicle testing and the tendency for wheel subsystem issues to lead to experimental failures and significant waste, this application creatively proposes the aforementioned collision testing fixture specifically designed for wheel subsystems.

[0058] This tooling can significantly improve the accuracy of wheel simulation at a lower cost. By benchmarking experiments on the wheel subsystem, it optimizes existing wheel hub materials and modeling methods, thereby greatly improving the consistency between simulation and experiment and achieving the goal of low cost.

[0059] To address the challenges posed by small overlap conditions to vehicle collision safety design and improve the accuracy of wheel subsystem simulation, this ingenious fixture design utilizes a forklift's extension into the top lug 25 of the boom 21 to enable rapid fixing and disassembly of the fixture and barrier 1, significantly reducing installation and disassembly time. After the fixture is fixed, the wheel can be easily installed, and its fore-and-aft position can be adjusted using the forward and backward extension function of the adjusting rod 31 in the slot 210. The wheel's position in the width direction of the fixture can be changed by adjusting the left and right position of the beam 40 in the mounting groove 340, ensuring a tight fit between the wheel and the baffle 600 of the support frame 6, effectively reducing secondary impacts and thus improving simulation accuracy.

[0060] Furthermore, this fixture can adapt to tests on wheels of different sizes, significantly enhancing its applicability. Simultaneously, the fixture supports tests on the entire wheel with tires on the hub 5, as well as separate crash tests on the hub 5, offering high versatility and flexibility in testing. More importantly, by adjusting the left-right position of the supporting beam 4 on the lifting frame 3, or by adjusting the left-right position of the entire fixture on the barrier 1, it is possible to precisely impact 1 / 2 or 1 / 3 of the wheel's area.

[0061] The lifting frame 3 of this tooling is oscillatingly mounted on the mounting frame 2, which effectively reduces the constraint on the wheels in the event of an impact, making them more flexible. In addition, the connecting rod 41 on the supporting beam 4 is detachable, making it easy to replace, thereby significantly reducing the overall maintenance or replacement cost of the tooling.

[0062] The mounting bracket 2 in this fixture is fixed using a triangular support structure, which ensures the overall stability of the mounting bracket 2 thanks to its excellent stability. Steel can be used for the main body of the fixture, which not only significantly reduces manufacturing costs but also guarantees the structural strength, stability, and reliability of the fixture. The wheel hub 5 is securely fixed to the mounting beam 4 at the desired wheel installation position via two matching disc-shaped hub connecting flanges 410 on the connecting rod 41 and bolts.

[0063] In the experiment, the wheels were impacted by a collision trolley and other devices, causing them to come into contact with contact components such as the baffle 600 on the support frame 6, simulating wheel deformation and breakage. Subsequently, simulation technology was used to accurately calibrate the wheel's material and modeling method, and these parameters were applied to the whole vehicle simulation, which can effectively improve the accuracy of the whole vehicle simulation.

[0064] In summary, the wheel collision test fixture of this embodiment, by setting up a mounting frame 2 with a support beam, and since the boom 21 extends from the side of the base plate 20 away from the barrier 1 in a direction away from the base plate 20, which is basically consistent with the collision direction of the wheel, and the support beam is located below the boom 21 and connected between the base plate 20 and the boom 21, the base plate 20, the boom 21 and the support beam together form a triangular support structure, providing a solid foundation for the hoisting of the lifting frame 3. The mounting beam 4 is set at the bottom of the lifting frame 3. By swinging the lifting frame 3, when the wheel is subjected to the impact test of the collision trolley, the wheel can move its position in the collision direction with the mounting beam 4, so that the impact force is evenly applied to the wheel, which can well simulate the force state of the wheel when the vehicle is in a collision, thus providing a fixture manufacturing solution suitable for collision testing of vehicle wheels.

[0065] The above description is merely a preferred embodiment of this application. Detailed explanations of configurations, examples of specific structural arrangements, and descriptions of assembly and connection methods are provided to ensure sufficient disclosure so that those skilled in the art can better implement this application, and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A wheel collision testing fixture, characterized in that: It includes a mounting frame (2), a lifting frame (3) and a supporting beam (4), and the supporting beam (4) is provided with a hub mounting part for fixing the wheel to be tested; The mounting frame (2) includes a base plate (20) that can be connected to the barrier (1) and a boom (21) provided on the base plate (20); the boom (21) extends away from the base plate (20) and a support beam connecting the base plate (20) and the boom (21) is provided below the boom (21); The lifting frame (3) is swayably disposed at one end of the boom (21) away from the base plate (20), the mounting beam (4) is disposed at the bottom of the lifting frame (3), and the mounting beam (4) can move in position in the collision direction of the wheel as the lifting frame (3) swings.

2. The wheel collision test fixture according to claim 1, characterized in that: The support beam includes a support inclined beam (22) and a support vertical beam (23); The supporting inclined beam (22) extends from the bottom of the base plate (20) toward the end of the boom (21) away from the base plate (20) and is connected to the boom (21). The supporting upright beam (23) is vertically arranged between the supporting inclined beam (22) and the boom (21).

3. The wheel collision test fixture according to claim 1, characterized in that: The booms (21) are two parallel booms, and a connecting beam (24) is provided between the two booms (21); the lifting frame (3) is connected to the ends of the two booms (21).

4. The wheel collision test fixture according to claim 3, characterized in that: The boom (21) is provided with slots (210) arranged along the length of the boom (21); the lifting frame (3) includes adjusting rods (31) respectively inserted into the slots (210) of the two booms (21), a swing shaft (30) connected between the two adjusting rods (31), and two lifting rods (32) spaced apart on the swing shaft (30). The mounting beam (4) is connected between the bottoms of the two hanging rods (32), and the length of the adjusting rod (31) inserted into the slot (210) is adjustable.

5. The wheel collision test fixture according to claim 4, characterized in that: The bottom of the boom (32) is provided with a lifting seat (34), and the lifting seat (34) is provided with a mounting groove (340) arranged along the width direction of the wheel collision test fixture. The mounting beam (4) is fixedly installed in the mounting groove (340) in an adjustable position.

6. The wheel collision test fixture according to claim 4, characterized in that: The hoisting frame (3) further includes a support rod connected between the two hoisting rods (32); and / or, the mounting frame (2) further includes a lug (25) provided on the top of the boom (21).

7. The wheel collision test fixture according to claim 1, characterized in that: It also includes a support frame (6) disposed below the mounting bracket (2), the support frame (6) being fixedly mounted on the barrier (1), and the support frame (6) having a baffle (600) disposed facing the wheel hub mounting portion.

8. The wheel collision test fixture according to any one of claims 1 to 7, characterized in that: The mounting beam (4) includes two sub-beams (40) that can be fixedly mounted on the hoisting frame (3) respectively, and connecting rods (41) that are respectively disposed on the two sub-beams (40). The two sub-beams (40) and the two connecting rods (41) are arranged on the same straight line along the width direction of the wheel collision test fixture, and the two connecting rods (41) are located between the two sub-beams (40); The hub mounting part includes hub connecting flanges (410) respectively provided on the two connecting rods (41). Relative to one end of the connecting beam (40), the hub connecting flanges (410) are provided at the other end of the connecting rods (41), and the hub (5) of the wheel can be clamped and fixed between the two hub connecting flanges (410).

9. The wheel collision test fixture according to claim 8, characterized in that: The beam body (40) is provided with a first connecting flange (401) at one end of the connecting rod (41), and a second connecting flange (411) matching the first connecting flange (401) is provided at the other end of the connecting rod (410) away from the hub connecting flange (410). The mounting hole on at least one of the first connecting flange (401) and the second connecting flange (411) is configured as an arc-shaped hole that allows the first connecting flange (401) to rotate relative to the second connecting flange (411).

10. The wheel collision test fixture according to claim 9, characterized in that: A gasket (42) is sandwiched between the first connecting flange (401) and the second connecting flange (411).

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