Collision test trolley device

Abstract

The invention discloses a crash test trolley device, and relates to the technical field of vehicles, and the crash test trolley device comprises a trolley main body; at least four wheels; the plurality of suspension mechanisms are respectively arranged on two sides of the trolley main body, each side of the trolley main body is provided with a plurality of suspension mechanisms, the plurality of suspension mechanisms are in one-to-one correspondence with the plurality of wheels, the suspension mechanisms are connected with the corresponding wheels, and the positions of the suspension mechanisms relative to the trolley main body in the second direction are adjustable. The suspension mechanism is fixedly arranged on the trolley main body and is connected with the corresponding wheels, so that the collision test trolley device can better simulate dynamic characteristics in a real vehicle collision process, and the accuracy and representativeness of an experimental result are improved. The position of the suspension mechanism relative to the trolley main body in the second direction is adjustable, so that the collision scenes of various vehicles can be accurately simulated through one collision test trolley device, the universality of the collision test trolley device is improved, and the cost of the collision test is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a collision test trolley device. Background Art

[0002] In the related technology, vehicles need to undergo collision tests before being put into mass production. However, the wheels and frames of the test trolley are rigidly connected, while the wheels and frames of the finished vehicles are connected by a suspension mechanism. In addition, the wheelbase and suspension parameters of different vehicles may be different, which leads to poor versatility of the test trolley and deviations between the collision test results and the collision results of the actual vehicle. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a collision test trolley device to better simulate the dynamic characteristics of a real vehicle collision process, thereby improving the accuracy and representativeness of the experimental results.

[0004] According to an embodiment of the present invention, a collision test trolley device includes: a trolley body; at least four wheels, wherein the multiple wheels are respectively arranged on both sides of the trolley body along a first direction, and each side of the trolley body is provided with multiple wheels, the multiple wheels located on the same side of the trolley body are arranged along a second direction, and the multiple wheels located on one side of the trolley body correspond one-to-one to the multiple wheels located on the other side of the trolley body, and the first direction, the second direction and the height direction of the collision test trolley device are perpendicular to each other; multiple suspension mechanisms, wherein the multiple suspension mechanisms are respectively arranged on both sides of the trolley body, and each side of the trolley body is provided with multiple suspension mechanisms, the multiple suspension mechanisms located on the same side of the trolley body are arranged along the second direction, and the multiple suspension mechanisms located on one side of the trolley body correspond one-to-one to the multiple suspension mechanisms located on the other side of the trolley body, the multiple suspension mechanisms correspond one-to-one to the multiple wheels, and the suspension mechanisms are connected to the corresponding wheels, the suspension mechanisms are adjustable relative to the trolley body along the second direction, and the suspension mechanisms are selectively fixed to the trolley body.

[0005] According to the collision test trolley device of the embodiment of the present invention, by setting a suspension mechanism fixedly mounted on the trolley body and connected to the corresponding wheels, the wheels and the trolley body can be connected through the suspension mechanism, which is conducive to the collision test trolley device to better simulate the dynamic characteristics of the real vehicle collision process (for example: the deformation and energy absorption characteristics of the suspension under impact), thereby improving the accuracy and representativeness of the experimental results. By setting the suspension mechanism to be adjustable relative to the trolley body along the second direction, the collision scenes of various vehicle models can be accurately simulated, thereby improving the versatility of the collision test trolley device and reducing the cost of the collision test.

[0006] In some embodiments of the present invention, the suspension mechanism includes: a first mounting frame, a second mounting frame and a suspension assembly, the first mounting frame and the second mounting frame are adjustable relative to the trolley body along the second direction, and the first mounting frame and the second mounting frame are selectively fixed to the trolley body, the first mounting frame is located above the second mounting frame, the suspension assembly is connected to both the first mounting frame and the second mounting frame, and the suspension assembly is also connected to the corresponding wheels.

[0007] In some embodiments of the present invention, the trolley body is formed with a plurality of first mounting holes, the plurality of first mounting holes are arranged in sequence along the second direction, and the first mounting frame has a second mounting hole that is assembled with the first mounting hole.

[0008] In some embodiments of the present invention, the first mounting frame includes: a top plate, a connecting column and a first connecting plate, the top plate is located above the first connecting plate, the connecting column is fixedly connected between the top plate and the first connecting plate, the first connecting plate and the trolley body are assembled in cooperation, the suspension assembly is located below the top plate, and the suspension assembly and the top plate are connected.

[0009] In some embodiments of the present invention, the trolley body is further formed with a plurality of third mounting holes, the plurality of third mounting holes are arranged in sequence along the second direction, and the second mounting frame has a fourth mounting hole that cooperates with the third mounting holes.

[0010] In some embodiments of the present invention, the second mounting frame includes: a second connecting plate and a first mounting ear, the second connecting plate and the first mounting ear are fixedly connected, the first mounting ear is located on the side of the second connecting plate facing the corresponding wheel along the first direction, the second connecting plate and the trolley body are assembled in cooperation, and the suspension assembly is connected to the first mounting ear.

[0011] In some embodiments of the present invention, the suspension assembly includes: a connecting arm, a shock absorbing structure, a slider and a swing arm, the upper end of the shock absorbing structure is rotatably provided on the slider around a first axis, the lower end of the shock absorbing structure is rotatably provided on the connecting arm around a second axis, the slider is slidably provided on the top plate along a first direction, the connecting arm is rotatably provided on the second mounting frame around a third axis, the connecting arm is rotatably provided on the swing arm around a fourth axis, the swing arm is connected to the corresponding wheel, and the first axis, the second axis, the third axis and the fourth axis all extend along the second direction.

[0012] In some embodiments of the present invention, the suspension assembly also includes: a driving screw, a first mounting frame having a top plate, the top plate having a strip guide hole extending along a first direction, second mounting ears are fixedly provided on both sides of the top plate along the first direction, the slider is located below the top plate and is partially assembled in the strip guide hole, the slider is formed with a threaded hole extending along the first direction, the driving screw is passed through the second mounting ear and the threaded hole, and the slider is slid by rotating the driving screw.

[0013] In some embodiments of the present invention, the shock absorbing structure, the slider and the connecting arm can be detachably connected.

[0014] In some embodiments of the present invention, the collision test trolley device further includes: a mounting block and an anti-collision structure. Along the second direction, a mounting block is fixedly provided on at least one end of the trolley body, and an anti-collision structure is provided on the side of the mounting block facing away from the trolley body. The position of the anti-collision structure relative to the trolley body is adjustable along the height direction of the collision test trolley device; the trolley body is fixedly provided with at least one of an equipment mounting frame and a counterweight mounting structure.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic structural diagram of a collision test trolley device according to an embodiment of the present invention;

[0018] Figure 2 is a schematic structural diagram of a collision test trolley device (excluding wheels) according to an embodiment of the present invention;

[0019] Figure 3 is a partial structural schematic diagram of a collision test trolley device according to an embodiment of the present invention;

[0020] Figure 4 is a schematic cross-sectional view of a suspension mechanism according to an embodiment of the present invention;

[0021] Figure 5 FIG. 4 is a schematic cross-sectional view of a suspension mechanism according to an embodiment of the present invention at another angle.

[0022] Reference numerals:

[0023] Crash test trolley device 100;

[0024] Trolley body 1;

[0025] Equipment mounting frame 11; counterweight mounting structure 12; upper frame body 13;

[0026] Lower frame 14; "X" beam 141;

[0027] Vertical connecting column 15; reinforcing beam 151; connecting beam 16;

[0028] Wheel 2;

[0029] Suspension mechanism 3;

[0030] First mounting bracket 31; second mounting hole 311;

[0031] Top plate 312; strip-shaped guide hole 3121; second mounting ear 3122;

[0032] Connecting column 313; first connecting plate 314;

[0033] Second mounting bracket 32; fourth mounting hole 321; second connecting plate 322; first mounting ear 323;

[0034] Suspension assembly 33; connecting arm 331;

[0035] Shock absorbing structure 332; coil spring 3321;

[0036] Slider 333; swing arm 334; drive screw 335; adjustment rod 336;

[0037] Rotating portion 34;

[0038] Mounting block 4; height adjustment hole 41;

[0039] Anti-collision structure 5;

[0040] Traction device 6. DETAILED DESCRIPTION

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] Reference below Figure 1-Figure 5 A crash test trolley apparatus 100 according to an embodiment of the present invention is described.

[0043] like Figure 1-Figure 3As shown, the collision test trolley device 100 according to an embodiment of the present invention comprises: a trolley body 1; at least four wheels 2, wherein along a first direction, the plurality of wheels 2 are respectively arranged on both sides of the trolley body 1, and each side of the trolley body 1 is provided with a plurality of wheels 2, the plurality of wheels 2 located on the same side of the trolley body 1 are arranged along a second direction, and the plurality of wheels 2 located on one side of the trolley body 1 correspond to the plurality of wheels 2 located on the other side of the trolley body 1 one to one, and the first direction, the second direction and the height direction of the collision test trolley device 100 are perpendicular to each other; and a plurality of suspension mechanisms 3 , multiple suspension mechanisms 3 are respectively arranged on both sides of the trolley body 1, and each side of the trolley body 1 is provided with multiple suspension mechanisms 3, the multiple suspension mechanisms 3 located on the same side of the trolley body 1 are arranged along the second direction, and the multiple suspension mechanisms 3 located on one side of the trolley body 1 and the multiple suspension mechanisms 3 located on the other side of the trolley body 1 correspond one to one, the multiple suspension mechanisms 3 and the multiple wheels 2 correspond one to one, and the suspension mechanisms 3 are connected to the corresponding wheels 2, the suspension mechanisms 3 are adjustable relative to the trolley body 1 along the second direction, and the suspension mechanisms 3 are selectively fixed to the trolley body 1.

[0044] Among them, the trolley body 1 is the main part of the collision test trolley device 100, and other components can be assembled at the corresponding positions of the trolley body 1 to complete the assembly of the collision test trolley device 100. As some embodiments of the present application, the trolley body 1 may include an upper frame 13 and a lower frame 14. As some embodiments of the present application, the upper frame 13 and the lower frame 14 may be constructed in a rectangular shape. The upper frame 13 and the lower frame 14 may be connected by a plurality of vertical connecting columns 15, and a reinforcing beam 151 may be provided between two adjacent vertical connecting columns 15. The upper frame 13 and the lower frame 14 may be provided with a plurality of connecting beams 16 extending along the first direction, and the plurality of connecting beams 16 are arranged in sequence along the second direction. The lower frame 14 may also be provided with an "X"-shaped beam 141, and the "X"-shaped beam 141 is provided between two adjacent connecting beams 16 to strengthen the structural strength of the lower frame 14, so that the experimental equipment required for the collision test can be reliably assembled on the lower frame 14.

[0045] As some embodiments of the present application, the wheels 2 may be provided with four. As some embodiments of the present application, the wheels 2 may be provided with six. However, the present application is not limited thereto, and the wheels 2 may also be provided with other numbers. The present application takes the case where the wheels 2 are provided with four as an example. Along the first direction, i.e. Figure 1 In the Y direction, four wheels 2 are respectively arranged on both sides of the trolley body 1, and two wheels 2 are arranged on each side of the trolley body 1.

[0046] The two wheels 2 located on the same side of the trolley body 1 are arranged along the second direction. Figure 1In the X direction, the two wheels 2 on one side of the trolley body 1 correspond to the two wheels 2 on the other side of the trolley body 1 one by one, that is, along the first direction, any wheel 2 on one side of the trolley body 1 has a corresponding wheel 2 on the other side of the trolley body 1. Such an arrangement can make the number and position of the wheels 2 reasonable, which is beneficial to improve the stability of the collision test trolley device 100 during the measurement process, and can also make the number of wheels 2 consistent with the number of wheels of conventional finished products, so as to better simulate the state during a real vehicle collision. The first direction, the second direction and the height direction of the collision test trolley device 100 are perpendicular to each other, that is, the Y direction, the X direction and the height direction of the collision test trolley device 100 are perpendicular to each other, and the height direction of the collision test trolley device 100 is Figure 1 The Z direction in .

[0047] The suspension mechanism 3 can be set to multiple. As some embodiments of the present application, the suspension mechanism 3 can be set to four. As some embodiments of the present application, the suspension mechanism 3 can be set to six. The present application takes the case where four suspension mechanisms 3 are set as an example. Along the first direction, the four suspension mechanisms 3 are respectively arranged on both sides of the trolley body 1, and two suspension mechanisms 3 are arranged on each side of the trolley body 1. It should be noted that the number of suspension mechanisms 3 can be consistent with the number of wheels 2, that is, one suspension mechanism 3 and one wheel 2 are arranged correspondingly. Such an arrangement can make a suspension mechanism 3 be arranged between any wheel 2 and the trolley body 1, which is conducive to the collision test trolley device 100 to better simulate the dynamic characteristics of the real vehicle collision process (for example: the deformation and energy absorption characteristics of the suspension under impact), thereby improving the accuracy and representativeness of the experimental results.

[0048] Along the second direction, the two suspension mechanisms 3 located on the same side of the trolley body 1 are arranged in sequence, and the multiple suspension mechanisms 3 located on one side of the trolley body 1 correspond to the multiple suspension mechanisms 3 located on the other side of the trolley body 1 one by one. That is to say, along the first direction, any suspension mechanism 3 located on one side of the trolley body 1 has a corresponding suspension mechanism 3 located on the other side of the trolley body 1. Such an arrangement can make the number and position of the suspension mechanisms 3 reasonable, which is beneficial to improving the stability of the collision test trolley device 100 during the measurement process, and can also make the number of wheels 2 and the number of suspension mechanisms 3 consistent with the number of wheels and the number of suspension mechanisms of conventional finished products, thereby better simulating the state during a real vehicle collision.

[0049] As some embodiments of the present application, the wheel 2 is rotatably connected to the corresponding suspension mechanism 3. The suspension mechanism 3 is fixed to the trolley body 1, so that the wheel 2 can be indirectly assembled to the collision test trolley device 100 through the suspension mechanism 3, which is conducive to the collision test trolley device 100 being moved through the wheel 2. As some embodiments of the present application, the suspension mechanism 3 and the trolley body 1 can be connected by bolts. As some embodiments of the present application, the suspension mechanism 3 and the trolley body 1 can be connected by snapping.

[0050] Furthermore, along the second direction, the suspension mechanism 3 can be selectively set at a corresponding position of the trolley body 1, so that the position of the suspension mechanism 3 relative to the trolley body 1 along the second direction is adjustable, thereby making the wheel 2 assembled on the suspension mechanism 3 adjustable along the second direction, thereby smoothly changing the wheelbase of the wheel 2, so that vehicle collision scenarios with a variety of different wheelbases can be accurately simulated, which is beneficial to improving the versatility of the collision test trolley device 100 and reducing the cost of the collision test.

[0051] Specifically, the suspension mechanism 3 is connected to the trolley body 1 by bolts, and the suspension mechanism 3 may include a rotating part 34, and the wheel 2 is assembled to the rotating part 34 of the suspension mechanism 3 by bolts, so that the collision test trolley device 100 is assembled. When it is necessary to perform a collision test on the target vehicle model, the number of wheels 2 and suspension mechanisms 3 of the collision test trolley device 100 can be increased or decreased, so that the number of wheels 2 and the number of suspension mechanisms 3 of the collision test trolley device 100 are consistent with the number of wheels and the number of suspension mechanisms of the target vehicle model. The position of the suspension mechanism 3 on the trolley body 1 is adjusted so that the wheelbase of the multiple wheels 2 arranged along the second direction is the same or approximately the same as the wheelbase of the target vehicle model, and the collision test trolley device 100 is controlled to perform a collision test, so that the collision test trolley device 100 can better simulate the dynamic characteristics of the target vehicle model during the collision process, thereby improving the accuracy of the collision test results. The collision test trolley device 100 has a reasonable structure and is easy to assemble, which can not only ensure the accuracy and consistency of the test, but also effectively reduce the manufacturing and maintenance costs.

[0052] Therefore, by setting the suspension mechanism 3 fixedly mounted on the trolley body 1 and connected to the corresponding wheel 2, the wheel 2 can be connected to the trolley body 1 through the suspension mechanism 3, which is conducive to the collision test trolley device 100 to better simulate the dynamic characteristics of the real vehicle collision process (for example: the deformation of the suspension under impact, the force transmission path and energy absorption characteristics, etc.), thereby improving the accuracy and representativeness of the experimental results, and providing more effective reference data for the passive safety design of the vehicle, thereby promoting the development of industry collision test standards. By setting the suspension mechanism 3 to be adjustable relative to the trolley body 1 along the second direction, the collision scenes of various different models of vehicles can be accurately simulated, thereby improving the versatility of the collision test trolley device 100 and reducing the cost of the collision test.

[0053] In some embodiments of the present invention, Figure 3-Figure 5 As shown, the suspension mechanism 3 may include: a first mounting frame 31, a second mounting frame 32 and a suspension assembly 33. The positions of the first mounting frame 31 and the second mounting frame 32 are adjustable relative to the trolley body 1 along the second direction, and the first mounting frame 31 and the second mounting frame 32 are selectively fixed to the trolley body 1, the first mounting frame 31 is located above the second mounting frame 32, the suspension assembly 33 is connected to both the first mounting frame 31 and the second mounting frame 32, and the suspension assembly 33 is also connected to the corresponding wheel 2.

[0054] Among them, along the height direction of the collision test trolley device 100, the first mounting frame 31 is located above the second mounting frame 32. Along the second direction, the positions of the first mounting frame 31 and the second mounting frame 32 relative to the trolley body 1 are adjustable. It should be noted that the positions of the first mounting frame 31 and the second mounting frame 32 relative to the trolley body 1 need to be adjusted synchronously. As some embodiments of the present application, the suspension assembly 33 is slidably connected to the first mounting frame 31, and the suspension assembly 33 is rotatably connected to the second mounting frame 32. As some embodiments of the present application, the suspension assembly 33 is rotatably connected to the first mounting frame 31, and the suspension assembly 33 is slidably connected to the second mounting frame 32.

[0055] By connecting the suspension assembly 33 to both the first mounting frame 31 and the second mounting frame 32, and the suspension assembly 33 is also connected to the corresponding wheel 2, the wheel 2 and the suspension mechanism 3 can be assembled on the trolley body 1 as a whole. The first mounting frame 31 and the second mounting frame 32 can be selectively fixed to the trolley body 1. Such an arrangement allows the first mounting frame 31 and the second mounting frame 32 to be fixed to different positions of the trolley body 1 according to actual needs. By changing the position of the first mounting frame 31 and the second mounting frame 32 relative to the trolley body 1, the position of the wheel 2 relative to the trolley body 1 along the second direction can be changed, thereby changing the wheelbase of the multiple wheels 2 arranged along the second direction, so that the wheelbase of the collision test trolley device 100 is adjusted to be the same or substantially the same as the wheelbase of the target vehicle model, which is conducive to improving the versatility of the collision test trolley device 100, and can also enable the collision test trolley device 100 to better simulate the dynamic characteristics of the target vehicle model during the collision process, and improve the accuracy of the collision test results.

[0056] In some embodiments of the present invention, Figure 3-Figure 5 As shown, the trolley body 1 is formed with a plurality of first mounting holes, which are arranged in sequence along the second direction, and the first mounting frame 31 has a second mounting hole 311 which is assembled with the first mounting hole.

[0057] Among them, the trolley body 1 is formed with a plurality of first mounting holes, and further, the first mounting holes can be arranged on the upper frame 13. The plurality of first mounting holes are arranged in sequence along the second direction. The first mounting frame 31 has a second mounting hole 311, and the second mounting hole 311 is adapted to the first mounting hole so that the first mounting hole and the second mounting hole 311 can be assembled in coordination. Specifically, the position of the first mounting frame 31 on the upper frame 13 is determined according to the wheelbase of the target vehicle model, and the bolts are passed through the first mounting hole and the second mounting hole 311 in sequence, and are screwed with the corresponding nuts, so that the first mounting frame 31 can be fixed at a suitable position of the trolley body 1, thereby achieving the effect of adjusting the wheelbase of the collision test trolley device 100.

[0058] In some embodiments of the present invention, Figure 3-Figure 5 As shown, the first mounting frame 31 may include: a top plate 312, a connecting column 313 and a first connecting plate 314, the top plate 312 is located above the first connecting plate 314, the connecting column 313 is fixedly connected between the top plate 312 and the first connecting plate 314, the first connecting plate 314 and the trolley body 1 are assembled in cooperation, the suspension assembly 33 is located below the top plate 312, and the suspension assembly 33 and the top plate 312 are connected.

[0059] Among them, along the height direction of the collision test trolley device 100, the top plate 312, the connecting column 313 and the first connecting plate 314 are arranged in sequence, the top plate 312 is located above the first connecting plate 314, and the connecting column 313 is fixedly connected between the top plate 312 and the first connecting plate 314. As some embodiments of the present application, the top plate 312 and the connecting column 313, and the connecting column 313 and the first connecting plate 314 are connected by welding. As some embodiments of the present application, the top plate 312 and the connecting column 313, and the connecting column 313 and the first connecting plate 314 are connected by bolts.

[0060] Further, a second mounting hole 311 is formed on the first connecting plate 314, and the second mounting hole 311 is assembled with the first mounting hole, so that the first mounting frame 31 is assembled with the trolley body 1 through the first connecting plate 314. Along the height direction of the collision test trolley device 100, the suspension assembly 33 is located below the top plate 312, and the suspension assembly 33 is connected to the top plate 312. As some embodiments of the present application, the suspension assembly 33 and the top plate 312 are movably connected, and further, the suspension assembly 33 is positionally variable relative to the top plate 312 along the first direction. Such an arrangement can change the position of the suspension assembly 33 in the first direction, and the wheel 2 arranged on the suspension assembly 33 can move along the first direction with the suspension assembly 33.

[0061] It should be noted that, along the first direction, the multiple wheels 2 located on one side of the trolley body 1 and the multiple wheels 2 located on the other side of the trolley body 1 correspond one to one, and the corresponding pair of wheels 2 simultaneously move toward the direction close to the corresponding second mounting frame 32, or simultaneously move toward the direction away from the corresponding second mounting frame 32. Such a setting can smoothly change the wheelbase of the corresponding pair of wheels 2, so that the wheelbase of the collision test trolley device 100 is adjusted to be the same or approximately the same as the wheelbase of the target vehicle model, which is beneficial to improving the versatility of the collision test trolley device 100, and can also enable the collision test trolley device 100 to better simulate the dynamic characteristics of the target vehicle model during the collision process, thereby improving the accuracy of the collision test results.

[0062] In some embodiments of the present invention, Figure 3-Figure 5 As shown, the trolley body 1 is further formed with a plurality of third mounting holes, which are arranged in sequence along the second direction, and the second mounting frame 32 has a fourth mounting hole 321 which is assembled with the third mounting hole.

[0063] Among them, the trolley body 1 is also formed with a plurality of third mounting holes, and further, the third mounting holes can be arranged on the lower frame 14. Along the second direction, the plurality of third mounting holes are arranged in sequence. The second mounting frame 32 has a fourth mounting hole 321, and the fourth mounting hole 321 is adapted to the third mounting hole so that the fourth mounting hole 321 and the third mounting hole can be assembled in coordination. Specifically, the position of the second mounting frame 32 on the lower frame 14 is determined according to the wheelbase of the target vehicle model, and the bolts are passed through the fourth mounting hole 321 and the third mounting hole in sequence, and are screwed with the corresponding nuts, so that the second mounting frame 32 can be fixed at a suitable position of the trolley body 1, thereby achieving the effect of adjusting the wheelbase of the collision test trolley device 100. It should be noted that the position of the second mounting frame 32 moves synchronously with the position of the first mounting frame 31.

[0064] In some embodiments of the present invention, Figure 3-Figure 5 As shown, the second mounting frame 32 may include: a second connecting plate 322 and a first mounting ear 323, the second connecting plate 322 and the first mounting ear 323 are fixedly connected, the first mounting ear 323 is located on the side of the second connecting plate 322 facing the corresponding wheel 2 along the first direction, the second connecting plate 322 and the trolley body 1 are assembled in cooperation, and the suspension assembly 33 and the first mounting ear 323 are connected.

[0065] Wherein, as some embodiments of the present application, the second connecting plate 322 and the first mounting ear 323 are welded and connected. As some embodiments of the present application, the second connecting plate 322 and the first mounting ear 323 are connected by bolts. When the second mounting frame 32 is assembled on the trolley body 1, the second connecting plate 322 and the first mounting ear 323 are arranged along the first direction, and, along the first direction, the first mounting ear 323 is located on the outside of the second connecting plate 322, that is, along the first direction, the first mounting ear 323 is located on the side of the second connecting plate 322 facing the corresponding wheel 2. Such an arrangement can make the structural arrangement of the second mounting frame 32 reasonable, which is conducive to reducing the difficulty of assembling the second mounting frame 32, and facilitates the coordinated assembly of the second connecting plate 322 and the trolley body 1, and the coordinated assembly of the suspension assembly 33 and the first mounting ear 323.

[0066] As some embodiments of the present application, the second connecting plate 322 and the trolley body 1 can be connected by bolts. As some embodiments of the present application, the second connecting plate 322 and the trolley body 1 can be connected by snapping. As some embodiments of the present application, the suspension assembly 33 and the first mounting ear 323 can be pivotally connected, for example: there can be two first mounting ears 323, the suspension assembly 33 can have a through hole, at least a part of the suspension assembly 33 is arranged between the two first mounting ears 323, and the rotating shaft passes through the two first mounting ears 323 and the through hole, so as to achieve the effect of assembling the suspension assembly 33 to the trolley body 1 through the second mounting frame 32.

[0067] In some embodiments of the present invention, Figure 3-Figure 5 As shown, the suspension assembly 33 may include: a connecting arm 331, a shock absorbing structure 332, a slider 333 and a swing arm 334, the upper end of the shock absorbing structure 332 is rotatably provided on the slider 333 around a first axis, the lower end of the shock absorbing structure 332 is rotatably provided on the connecting arm 331 around a second axis, the slider 333 is slidably provided on the top plate 312 along a first direction, the connecting arm 331 is rotatably provided on the second mounting frame 32 around a third axis, the connecting arm 331 is rotatably provided on the swing arm 334 around a fourth axis, the swing arm 334 is connected to the corresponding wheel 2, and the first axis, the second axis, the third axis and the fourth axis all extend along the second direction.

[0068] Among them, along the height direction of the collision test trolley device 100, the shock-absorbing structure 332 has an upper end and a lower end, the upper end of the shock-absorbing structure 332 is rotatably provided on the slider 333 around a first axis, and the lower end of the shock-absorbing structure 332 is rotatably provided on the connecting arm 331 around a second axis. As some embodiments of the present application, the upper end of the shock-absorbing structure 332 and the slider 333, and the lower end of the shock-absorbing structure 332 and the connecting arm 331 can be connected by a rotating shaft, so that the slider 333, the shock-absorbing structure 332 and the connecting arm 331 can move in coordination.

[0069] The first mounting frame 31 may have a top plate 312, and a slider 333 may be slidably disposed on the top plate 312 along the first direction. As some embodiments of the present application, the top plate 312 has a strip guide hole 3121 extending along the first direction. At least a portion of the slider 333 is assembled in the strip guide hole 3121, so that the strip guide hole 3121 can guide the slider 333, so that the slider 333 may be slidably disposed on the top plate 312 along the first direction. The connecting arm 331 may be rotatably disposed on the second mounting frame 32 around a third axis, and further, the connecting arm 331 may be rotatably disposed on the first mounting ear 323 around the third axis. The connecting arm 331 may be rotatably disposed on the swing arm 334 around a fourth axis. As some embodiments of the present application, the connecting arm 331 and the first mounting ear 323, and the connecting arm 331 and the swing arm 334 may be connected by a rotating shaft, so that the connecting arm 331 and the swing arm 334 may move in coordination.

[0070] The swing arm 334 is connected to the corresponding wheel 2 so that the position of the wheel 2 along the first direction can be adjusted through the slider 333 , the shock absorbing structure 332 , the connecting arm 331 and the swing arm 334 . Specifically, the control slider 333 slides along the first direction, and the upper end of the shock absorbing structure 332 rotates around the first axis to change the position of the shock absorbing structure 332. The lower end of the shock absorbing structure 332 rotates around the second axis to make the connecting arm 331 rotate around the third axis as the shock absorbing structure 332 moves. The connecting arm 331 is rotatably arranged on the swing arm 334 around the fourth axis. When the connecting arm 331 rotates, the swing arm 334 can be driven to move, so that the swing arm 334 can be moved to a corresponding position to change the position of the corresponding wheel 2, and then the wheelbase of a pair of wheels 2 corresponding to each other along the first direction can be changed, so that the wheelbase of the collision test trolley device 100 is adjusted to be the same or approximately the same as the wheelbase of the target vehicle model, which is beneficial to improving the versatility of the collision test trolley device 100, and can also enable the collision test trolley device 100 to better simulate the dynamic characteristics of the target vehicle model during the collision process, and improve the accuracy of the collision test results.

[0071] In some embodiments of the present invention, Figure 5 As shown, the suspension assembly 33 may also include: a driving screw 335, a first mounting frame 31 having a top plate 312, the top plate 312 having a strip guide hole 3121 extending along a first direction, second mounting ears 3122 are fixedly provided on both sides of the top plate 312 along the first direction, a slider 333 is located below the top plate 312 and is partially assembled in the strip guide hole 3121, the slider 333 is formed with a threaded hole extending along the first direction, the driving screw 335 is penetrated through the second mounting ear 3122 and the threaded hole, and the slider 333 is slid by rotating the driving screw 335.

[0072] Among them, two second mounting ears 3122 may be provided, and along the first direction, the two second mounting ears 3122 are respectively provided on both sides of the top plate 312. As some embodiments of the present application, the second mounting ears 3122 and the top plate 312 may be welded and connected. As some embodiments of the present application, the second mounting ears 3122 and the top plate 312 may be snap-connected. The top plate 312 has a strip guide hole 3121, and the strip guide hole 3121 extends along the first direction. Along the height direction of the collision test trolley device 100, the slider 333 is located below the top plate 312, and a portion of the slider 333 is assembled in the strip guide hole 3121, so that the strip guide hole 3121 can guide the slider 333, which is conducive to the portion of the slider 333 being able to slide in the strip guide hole 3121.

[0073] As some embodiments of the present application, the driving screw 335 may have an external thread, and the slider 333 forms a threaded hole, the threaded hole may have an internal thread, the external thread and the internal thread are adapted to each other, and the threaded hole extends along a first direction, and the driving screw 335 is inserted into the second mounting ear 3122 and the threaded hole. By rotating the driving screw 335, the slider 333 can be driven to slide, thereby controlling the movement of the shock absorbing structure 332, the connecting arm 331 and the swing arm 334, thereby achieving the effect of changing the wheelbase of the corresponding pair of wheels 2, and thereby adjusting the wheelbase of the collision test trolley device 100 to be the same or approximately the same as the wheelbase of the target vehicle model, thereby improving the versatility of the collision test trolley device 100.

[0074] As some embodiments of the present application, second mounting ears 3122 are fixedly provided on both sides of the top plate 312 along the first direction, and the suspension assembly 33 may include two adjustment rods 336, the second mounting ears 3122 have internal threads, and the adjustment rods 336 have external threads, and the two adjustment rods 336 are respectively passed through the two second mounting ears 3122 and are screwed with the corresponding second mounting ears 3122. Along the first direction, one end of the two adjustment rods 336 facing the slider 333 abuts against the slider 333, and the two adjustment rods 336 are rotated synchronously to move in the same direction, thereby driving the slider 333 to slide in the strip guide hole 3121.

[0075] In some embodiments of the present invention, Figure 3 As shown, the shock absorbing structure 332 and the slider 333 and the connecting arm 331 can be detachably connected.

[0076] Among them, the shock absorbing structure 332 is detachably connected to the slider 333, and the shock absorbing structure 332 is detachably connected to the connecting arm 331, so that the shock absorbing structure 332 of the collision test trolley device 100 can be replaced according to the suspension stiffness and damping characteristics of the target vehicle model. By replacing the shock absorbing structure 332, it is beneficial to achieve the effect of adjusting the stiffness and damping characteristics of the shock absorbing structure 332, thereby realizing the collision test trolley device 100 to simulate various complex application scenarios, so as to better adapt to the testing requirements of different road conditions.

[0077] Furthermore, the shock absorbing structure 332 may include a coil spring 3321, which is detachably arranged. According to the suspension stiffness and damping characteristics required by the test, the coil spring 3321 on the shock absorbing structure 332 may be replaced separately, thereby achieving the effect of adjusting the stiffness and damping characteristics of the shock absorbing structure 332 of the collision test trolley device 100, and also helping to reduce the manufacturing and maintenance costs of the collision test trolley device 100. It should be noted that the multiple shock absorbing structures 332 of the collision test trolley device 100 are the same to improve the stability of the collision test trolley device 100 during the experiment.

[0078] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the collision test trolley device 100 may further include: a mounting block 4 and an anti-collision structure 5. Along the second direction, a mounting block 4 is fixedly provided on at least one end of the trolley body 1, and an anti-collision structure 5 is provided on the side of the mounting block 4 facing away from the trolley body 1. The position of the anti-collision structure 5 relative to the trolley body 1 along the height direction of the collision test trolley device 100 is adjustable.

[0079] Wherein, as some embodiments of the present application, a mounting block 4 is fixedly provided at one end of the trolley body 1 along the second direction. As some embodiments of the present application, a mounting block 4 is fixedly provided at both ends of the trolley body 1 along the second direction. The mounting block 4 can be used to install honeycomb aluminum (not shown in the figure). As some embodiments of the present application, a plurality of height adjustment holes 41 may be provided on the mounting block 4, and part of the honeycomb aluminum is assembled in the height adjustment hole 41. After the honeycomb aluminum is set at a suitable position of the height adjustment hole 41, the long bolts can be passed through the mounting block 4 and the honeycomb aluminum in turn, and fastened with the corresponding nuts, so that the honeycomb aluminum can be fixed to the mounting block 4, so that the experimenter can observe the collision situation intuitively.

[0080] As some embodiments of the present application, the anti-collision structure 5 can be constructed as an anti-collision plate. Along the second direction, the side of the mounting block 4 away from the trolley body 1 is provided with an anti-collision structure 5, and along the height direction of the collision test trolley device 100, the position of the anti-collision structure 5 relative to the trolley body 1 is adjustable, so that the anti-collision structure 5 can be set at a suitable position of the collision test trolley device 100 as needed, which is conducive to accurately simulating the dynamic characteristics of a real vehicle collision process.

[0081] In some embodiments of the present invention, Figure 1-Figure 2 As shown, the trolley body 1 is fixedly provided with at least one of an equipment mounting frame 11 and a counterweight mounting structure 12 .

[0082] Among them, as some embodiments of the present application, the trolley body 1 is fixedly provided with an equipment mounting frame 11. As some embodiments of the present application, the trolley body 1 is fixedly provided with a counterweight mounting structure 12. As some embodiments of the present application, the trolley body 1 is fixedly provided with an equipment mounting frame 11 and a counterweight mounting structure 12. The present application is explained by taking the trolley body 1 being fixedly provided with an equipment mounting frame 11 and a counterweight mounting structure 12 as an example. The equipment mounting frame 11 can be assembled on the lower frame 14, and the equipment mounting frame 11 can be used to install vehicle-mounted equipment that records collision data, such as: sensors, cameras, etc. As some embodiments of the present application, the counterweight mounting structure 12 can be constructed as a counterweight bolt hole, and the counterweight block is assembled to the trolley body 1 through the counterweight mounting structure 12, which can achieve the effect of adjusting the mass of the collision test trolley device 100, thereby more accurately simulating the dynamic characteristics of a real vehicle collision process.

[0083] As some embodiments of the present application, Figure 1 As shown, the collision test trolley device 100 may include a traction device 6, and a driving device (for example, a driving trolley) may be assembled with the collision test trolley device 100 through the traction device 6, thereby driving the collision test trolley device 100 to move, so that the collision test trolley device 100 can perform collision tests at different driving speeds.

[0084] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0085] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A collision test trolley device, characterized in that: include: Trolley body; At least four wheels, along a first direction, a plurality of the wheels are respectively arranged on both sides of the trolley body, and a plurality of the wheels are arranged on each side of the trolley body, the plurality of the wheels located on the same side of the trolley body are arranged along a second direction, and the plurality of the wheels located on one side of the trolley body and the plurality of the wheels located on the other side of the trolley body correspond one to one, and the first direction, the second direction and the height direction of the collision test trolley device are perpendicular to each other; A plurality of suspension mechanisms, wherein the plurality of suspension mechanisms are respectively arranged on both sides of the trolley body, and each side of the trolley body is provided with a plurality of suspension mechanisms, the plurality of suspension mechanisms located on the same side of the trolley body are arranged along the second direction, and the plurality of suspension mechanisms located on one side of the trolley body and the plurality of suspension mechanisms located on the other side of the trolley body correspond one-to-one, the plurality of suspension mechanisms correspond one-to-one to the plurality of wheels, and the suspension mechanisms are connected to the corresponding wheels, the position of the suspension mechanisms relative to the trolley body along the second direction is adjustable, and the suspension mechanisms are selectively fixed to the trolley body.

2. The collision test trolley device according to claim 1, characterized in that: The suspension mechanism includes: a first mounting frame, a second mounting frame and a suspension assembly, the first mounting frame and the second mounting frame are adjustable relative to the trolley body along the second direction, and the first mounting frame and the second mounting frame are selectively fixed to the trolley body, the first mounting frame is located above the second mounting frame, the suspension assembly is connected to the first mounting frame and the second mounting frame, and the suspension assembly is also connected to the corresponding wheels.

3. The collision test trolley device according to claim 2, characterized in that: The trolley body is formed with a plurality of first mounting holes, which are arranged in sequence along the second direction, and the first mounting frame has a second mounting hole that is assembled with the first mounting hole.

4. The collision test trolley device according to claim 2, characterized in that: The first mounting frame includes: a top plate, a connecting column and a first connecting plate, the top plate is located above the first connecting plate, the connecting column is fixedly connected between the top plate and the first connecting plate, the first connecting plate and the trolley body are assembled in cooperation, the suspension assembly is located below the top plate, and the suspension assembly is connected to the top plate.

5. The collision test trolley device according to claim 2, characterized in that: The trolley body is further formed with a plurality of third mounting holes, which are arranged in sequence along the second direction, and the second mounting frame has a fourth mounting hole which is assembled with the third mounting holes.

6. The collision test trolley device according to claim 5, characterized in that: The second mounting frame includes: a second connecting plate and a first mounting ear, the second connecting plate and the first mounting ear are fixedly connected, the first mounting ear is located on the side of the second connecting plate facing the corresponding wheel along the first direction, the second connecting plate and the trolley body are assembled in cooperation, and the suspension assembly is connected to the first mounting ear.

7. The collision test trolley device according to claim 4, characterized in that: The suspension assembly includes: a connecting arm, a shock absorbing structure, a slider and a swing arm, the upper end of the shock absorbing structure is rotatably provided on the slider around a first axis, the lower end of the shock absorbing structure is rotatably provided on the connecting arm around a second axis, the slider is slidably provided on the top plate along the first direction, the connecting arm is rotatably provided on the second mounting frame around a third axis, the connecting arm is rotatably provided on the swing arm around a fourth axis, the swing arm is connected to the corresponding wheel, and the first axis, the second axis, the third axis and the fourth axis all extend along the second direction.

8. The collision test trolley device according to claim 7, characterized in that: The suspension assembly also includes: a driving screw, the first mounting frame has a top plate, the top plate has a strip guide hole extending along the first direction, second mounting ears are fixedly provided on both sides of the top plate along the first direction, the slider is located below the top plate and is partially assembled in the strip guide hole, the slider is formed with a threaded hole extending along the first direction, the driving screw is passed through the second mounting ear and the threaded hole, and the slider is slid by rotating the driving screw.

9. The collision test trolley device according to claim 7, characterized in that: The shock absorbing structure and the sliding block and the connecting arm can be detachably connected.

10. The collision test trolley device according to any one of claims 2 to 6, characterized in that: Also includes: A mounting block and an anti-collision structure, wherein the mounting block is fixedly provided at at least one end of the trolley body along the second direction, and the anti-collision structure is provided on the side of the mounting block away from the trolley body, and the position of the anti-collision structure is adjustable relative to the trolley body along the height direction of the collision test trolley device; and at least one of an equipment mounting frame and a counterweight mounting structure is fixedly provided on the trolley body.

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