Active suspension testing device

Abstract

The utility model belongs to the field of active suspension testing of automobiles, and particularly relates to an active suspension testing device. According to the active mount testing device, the position and the angle of the analog loader can be adjusted through the first pose adjusting mechanism, and the analog loader can generate different loading forces, so that the magnitude and the direction of the force actually applied to the active mount can be restored as much as possible; besides, the position and the angle of the active mount can be adjusted by the second pose adjusting mechanism, so that the actual mounting position of the active mount in the automobile can be restored as much as possible, researchers are intended to restore the actual working condition of the active mount in this way, and the accuracy of the active mount test is improved.

Description

Technical Field

[0001] The present application belongs to the field of active suspension testing of automobiles, and specifically relates to an active suspension testing device. Background Art

[0002] The active mount is used to connect the vehicle body and the powertrain. It mainly serves to limit, support and isolate the powertrain. In order to test the performance of the active mount in actual applications, the active mount needs to be tested in advance. In the existing test scheme, there are restrictions on the loading force applied to the active mount and the adjustment of the installation position of the active mount. Therefore, the test results of the active mount are inconsistent with the working condition results of the active mount, affecting the accuracy of the test. Utility Model Content

[0003] One of the invention purposes of the present application is to provide an active suspension test device, which can restore the actual working conditions of the active suspension as much as possible by adjusting different loading forces and changing the direction of applied forces, thereby improving the accuracy of the test.

[0004] According to an embodiment of the present application, a first aspect provides an active suspension test device, the active suspension test device comprising:

[0005] Test rack;

[0006] A first posture adjustment mechanism is arranged on the upper side of the test frame, and the first posture adjustment mechanism is used to adjust the rotation angle relative to the horizontal plane and adjust the position in the horizontal direction;

[0007] A simulation loader, used to generate different loading forces, the simulation loader is arranged at the lower side of the first posture adjustment mechanism and connected to the first posture adjustment mechanism, and the simulation loader is controlled by the first posture adjustment mechanism to adjust the rotation angle relative to the horizontal plane and the position in the horizontal direction;

[0008] An active suspension, disposed at the lower side of the simulated loader, the active suspension being used to bear the force applied by the simulated loader;

[0009] The second posture adjustment mechanism is arranged below the test frame, and is used to adjust the rotation angle relative to the horizontal plane and the position in the vertical direction. The second posture adjustment mechanism is connected to the lower side of the active suspension, and is used to adjust the rotation angle of the active suspension relative to the horizontal plane and the position in the vertical direction.

[0010] In one embodiment, according to the active suspension test device according to the claim, it is characterized in that: the first posture adjustment mechanism includes a sliding assembly and a connecting rod assembly, the sliding assembly is arranged on the upper side of the test frame and can move in the horizontal direction relative to the test frame, one end of the connecting rod assembly is connected to the sliding assembly, and the other end is connected to the simulation loader, the sliding assembly drives the connecting rod assembly to move to change the horizontal position of the simulation loader, and the connecting rod assembly changes the rotation angle of the simulation loader relative to the horizontal direction when it is deformed.

[0011] In one embodiment, the test stand is provided with a slide rail, and the sliding assembly includes a first slide block and a second slide block arranged opposite to each other, and the first slide block and the second slide block move respectively relative to the slide rail;

[0012] The connecting rod assembly includes a first connecting rod assembly and a second connecting rod assembly, wherein one end of the first connecting rod assembly is connected to the first slider, and the other end is connected to the simulation loader; one end of the second connecting rod assembly is connected to the second slider, and the other end is connected to the simulation loader.

[0013] In one embodiment, the first connecting rod assembly and the second connecting rod assembly each include a driving connecting rod and a driven connecting rod, a first connecting assembly is provided at one end of the driving connecting rod for connecting the first sliding block, the first connecting assembly at least includes a rotational freedom around a normal direction of the first connecting assembly and a rotational freedom around a direction perpendicular to the normal of the first connecting assembly, a second connecting assembly is provided between the other end of the driving connecting rod and the driven connecting rod, the second connecting assembly at least includes a rotational freedom around a normal direction of the second connecting assembly and a rotational freedom around a direction perpendicular to the normal of the second connecting assembly.

[0014] In one embodiment, the second posture adjustment mechanism includes a telescopic component and an angle adjustment component, the telescopic component is connected to the active suspension, the telescopic component is used to change the vertical position of the active suspension, the angle adjustment component is arranged on the test frame and connected to the telescopic component, and the angle adjustment component is used to adjust the rotation angle of the telescopic component relative to the test frame.

[0015] In one embodiment, the telescopic assembly includes a telescopic rod, a telescopic sleeve and a fastener, the telescopic rod can move in a vertical direction relative to the telescopic sleeve, the fastener is used to fix the position of the telescopic rod relative to the telescopic sleeve, the telescopic rod is connected to the active suspension, and the telescopic sleeve is connected to the angle adjustment assembly.

[0016] In one embodiment, the angle adjustment assembly includes a first adjustment seat, a first rotation axis, a second adjustment seat and a second rotation axis, the first adjustment seat is arranged on the test frame, the second adjustment seat is rotatably arranged on the first adjustment seat along a first direction via the first rotation axis, and the telescopic sleeve is rotatably arranged on the second adjustment seat along a second direction via the second rotation axis.

[0017] In one embodiment, the telescopic rod and the fastener are both provided with toothed bars opposite to each other, and after the fastener is engaged with the toothed bar in the telescopic rod, the fastener fixes the telescopic rod to the telescopic sleeve.

[0018] In one embodiment, the number of the telescopic components is the same as the number of the angle adjustment components, and both are three.

[0019] In one embodiment, a mounting plate is further provided between the first posture adjustment mechanism and the simulation loader, and the mounting plate is used to support the simulation loader; and / or, a claw mechanism is further provided between the active suspension and the second posture adjustment mechanism, and the claw mechanism is used to clamp the active suspension; and / or, the simulation loader is an electromagnetic servo actuator; and / or, a stabilizing bar is further provided between the simulation loader and the test frame, and the stabilizing bar is used to stabilize the position of the simulation loader relative to the test frame.

[0020] The active suspension test device of the present application can adjust the position and angle of the simulation loader through the first posture adjustment mechanism. The simulation loader can generate different loading forces, so as to restore the size and direction of the force actually applied to the active suspension as much as possible; in addition, the second posture adjustment mechanism can adjust the position and angle of the active suspension, so as to restore the actual installation position of the active suspension in the car as much as possible. The researchers intend to restore the actual working conditions of the active suspension in this way to improve the accuracy of the active suspension test. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an active suspension test device in one embodiment of the present application;

[0022] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0023] Figure 3 for Figure 1 A partial enlarged schematic diagram of point B in the middle;

[0024] Figure 4 A schematic diagram of a scene arrangement of an active suspension test device in an embodiment;

[0025] Figure 5A schematic diagram of another scene arrangement of an active suspension test device in an embodiment;

[0026] Figure 6 Schematic diagram of another scenario layout of an active suspension test device in an embodiment.

[0027] Description of Figure Numbers:

[0028] 100. test stand; 110. slide rail;

[0029] 200, first posture adjustment mechanism; 210, sliding assembly; 211, first slider; 212, second slider; 220, connecting rod assembly; 221, first connecting rod assembly; 2211, driving connecting rod; 2212, driven connecting rod; 2213, first connecting assembly; 2214, second connecting assembly; 222, second connecting rod assembly;

[0030] 300, simulation loader;

[0031] 400, Active suspension;

[0032] 500, second posture adjustment mechanism; 510, telescopic assembly; 511, telescopic rod; 512, telescopic sleeve; 513, fastener; 520, angle adjustment assembly; 521, first adjustment seat; 522, first rotation axis; 523, second adjustment seat; 524, second rotation axis;

[0033] 610, mounting plate; 620, claw mechanism. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention.

[0036] The structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0037] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] As mentioned in the background, the active suspension is used to connect the vehicle body and the powertrain, and it mainly serves to limit, support and isolate the powertrain. In order to test the performance of the active suspension in actual applications, the active suspension needs to be tested in advance. In the existing test scheme, there are limitations on the loading force applied to the active suspension and the adjustment of the installation position of the active suspension. Therefore, this makes the test results of the active suspension inconsistent with the working condition results of the active suspension, affecting the accuracy of the test. In order to better solve this problem, the researchers in this application proposed an active suspension test device, which improves the accuracy of the active suspension test by restoring the magnitude and direction of the force applied to the active suspension and restoring the actual installation position of the active suspension.

[0039] like Figure 1 As shown, Figure 1 The active suspension test device in one embodiment of the present application is a schematic diagram of the structure. The active suspension test device includes: a test frame 100, a first posture adjustment mechanism 200, a simulation loader 300, an active suspension 400 and a second posture adjustment mechanism 500, wherein the test frame 100 is used to install the first posture adjustment mechanism 200 and the second posture adjustment mechanism 500, the first posture adjustment mechanism 200 is arranged in the test frame 100 and is used to connect with the simulation loader 300, the first posture adjustment mechanism 200 is used to change the position and angle of the simulation loader 300, and the simulation loader 300 is used to generate different forces, through Through the first posture adjustment mechanism 200 and the simulation loader 300, the size and direction of the loading force applied to the active suspension 400 can be restored; the active suspension 400 is arranged below the simulation loader 300, and the second posture adjustment mechanism 500 is used to adjust the position and angle of the active suspension 400, so as to restore the installation position of the active suspension 400 in the car. The researchers intend to restore the setting position of the active suspension 400 in the car and the force acting on the active suspension 400 in this way, so as to improve the accuracy of the active suspension 400 test.

[0040] Specifically, the active suspension test device includes: a test frame 100; a first posture adjustment mechanism 200 is arranged on the upper side of the test frame 100, the first posture adjustment mechanism 200 is used to adjust the rotation angle relative to the horizontal plane and adjust the position in the horizontal direction; a simulation loader 300 is used to generate different loading forces, the simulation loader 300 is arranged on the lower side of the first posture adjustment mechanism 200 and is connected to the first posture adjustment mechanism 200, and the simulation loader 300 is controlled by the first posture adjustment mechanism 200 to adjust the rotation angle relative to the horizontal plane and the position in the horizontal direction; for example, the first posture adjustment mechanism 200 can drive the simulation loader 300 to rotate relative to the horizontal plane, thereby changing the rotation angle of the simulation loader 300 relative to the horizontal plane; in addition, the first posture adjustment mechanism 200 can adjust the position of the simulation loader 300 in the horizontal direction, for example, moving the simulation loader 300 from a first point to a second point, thereby changing the position of the simulation loader 300 in the horizontal direction; in this way, the direction of the force actually applied to the active suspension 400 is simulated and restored. The active suspension 400 is arranged at the lower side of the simulation loader 300, and the active suspension 400 is used to bear the force applied by the simulation loader 300; the second posture adjustment mechanism 500 is arranged below the test frame 100, and the second posture adjustment mechanism 500 is used to adjust the rotation angle relative to the horizontal plane and adjust the position in the vertical direction. The second posture adjustment mechanism 500 is connected to the lower side of the active suspension 400, and the second posture adjustment mechanism 500 is used to adjust the rotation angle of the active suspension 400 relative to the horizontal plane and the position in the vertical direction; for example, the second posture adjustment mechanism 500 can drive the active suspension 400 to rotate relative to the horizontal plane to change the rotation angle of the active suspension 400 relative to the horizontal plane; in addition, the second posture adjustment mechanism 500 can adjust the position of the active suspension 400 in the vertical direction, for example, adjusting the first height of the active suspension 400 to the second height.

[0041] In this embodiment, the first posture adjustment mechanism 200 can adjust the position and angle of the simulated loader 300, for example, the first posture adjustment mechanism 200 can drive the simulated loader 300 to rotate relative to the horizontal plane, thereby changing the angle of the simulated loader 300 relative to the horizontal plane; or the first posture adjustment mechanism 200 can drive the position of the simulated loader 300 in the horizontal plane; the first posture adjustment mechanism 200 adjusts the position and angle of the simulated loader 300 and the magnitude of the force generated by the simulated loader 300, thereby being able to restore as much as possible the magnitude and direction of the force applied to the active suspension 400 by the actual car during operation; in addition, the second posture adjustment mechanism 500 can adjust the position and angle of the active suspension 400, for example, the second posture adjustment mechanism 500 can adjust the rotation angle of the active suspension 400 relative to the horizontal plane and adjust the position of the active suspension in the vertical direction, thereby restoring the actual installation position of the active suspension 400 in the car as much as possible. The researchers intend to restore the actual working conditions of the active suspension 400 in this way and improve the accuracy of the active suspension 400 test.

[0042] Further, in one embodiment, see Figure 1 As shown, the first posture adjustment mechanism 200 includes a sliding assembly 210 and a connecting rod assembly 220. The sliding assembly 210 is arranged on the upper side of the test frame 100 and can move in the horizontal direction relative to the test frame 100. One end of the connecting rod assembly 220 is connected to the sliding assembly 210, and the other end is connected to the simulation loader 300. The sliding assembly 210 drives the connecting rod assembly 220 to move to change the horizontal position of the simulation loader 300. When the connecting rod assembly 220 is deformed, the rotation angle of the simulation loader 300 relative to the horizontal direction is changed.

[0043] In this embodiment, the researchers achieve horizontal position change through the sliding assembly 210, and achieve angular position change through the rotation of the connecting rod assembly 220. Specifically, when the horizontal position of the simulated loader 300 needs to be adjusted, the sliding assembly 210 drives the connecting rod assembly 220 to move in the horizontal direction, and the position of the simulated loader 300 is changed by changing the position of the connecting rod assembly 220; when the rotation angle of the simulated loader 300 needs to be adjusted, the connecting rod assembly 220 is deformed, for example, the connecting rod assembly 220 can be deformed when rotating around the sliding assembly 210 to change the rotation angle of the simulated loader 300 relative to the horizontal plane; or the connecting rod assembly 220 can be partially folded and deformed to change the rotation angle of the simulated loader 300 relative to the horizontal plane.

[0044] Furthermore, in one embodiment, see Figure 2As shown, the test frame 100 is provided with a slide rail 110, and the sliding assembly 210 includes a first slider 211 and a second slider 212 arranged opposite to each other, and the first slider 211 and the second slider 212 move respectively relative to the slide rail 110; the connecting rod assembly 220 includes a first connecting rod assembly 221 and a second connecting rod assembly 222, one end of the first connecting rod assembly 221 is connected to the first slider 211, and the other end is connected to the simulation loader 300; one end of the second connecting rod assembly 222 is connected to the second slider 212, and the other end is connected to the simulation loader 300.

[0045] In this embodiment, the researchers changed the position of the first link assembly 221 and the second link assembly 222 in the link assembly 220 by moving the first slider 211 and the second slider 212 in the sliding assembly 210 relative to the slide rail 110 in the test frame 100, thereby changing the horizontal position of the simulation loader 300; at the same time, the first link assembly 221 and the second link assembly 222 can be deformed separately, for example, the first link assembly 221 can be deformed by rotating around the first slider 211 or part of the links in the first link assembly 221 can be partially folded and deformed; the second link assembly 222 can be deformed by rotating around the second slider 212 or part of the links in the second link assembly 222 can be folded and deformed, so that the simulation loader 300 can achieve position changes at various angles.

[0046] In one embodiment, the first connecting rod assembly 221 and the second connecting rod assembly 222 each include a driving connecting rod 2211 and a driven connecting rod 2212. A first connecting assembly 2213 is provided at one end of the driving connecting rod 2211 for connecting to the first slider 211. The first connecting assembly 2213 includes at least a rotational degree of freedom around a normal direction of the first connecting assembly 2213 and a rotational degree of freedom around a direction perpendicular to the normal of the first connecting assembly 2213. A second connecting assembly 2214 is provided between the other end of the driving connecting rod 2211 and the driven connecting rod 2212. The second connecting assembly 2214 includes at least a rotational degree of freedom around a normal direction of the second connecting assembly 2214 and a rotational degree of freedom around a direction perpendicular to the normal of the second connecting assembly 2214.

[0047] In this embodiment, the first connecting assembly 2213 and the second connecting assembly 2214 can change the posture of the first connecting rod assembly 221 and the second connecting rod assembly 222 relative to the horizontal plane at multiple angles. Figure 4 As shown, in Figure 4In the embodiment, the driving link 2211 in the first link assembly 221 can be rotated around a direction perpendicular to the normal direction of the first link assembly 2213 and around a direction perpendicular to the normal direction of the second link assembly 2214 through the first link assembly 2213, and the driving link 2211 in the second link assembly 222 can be rotated around a direction perpendicular to the normal direction of the first link assembly 2213 and around a direction perpendicular to the normal direction of the second link assembly 2214 through the first link assembly 2213, respectively, so that the simulation loader 300 is coaxially arranged with the active suspension 400. In this embodiment, the first connecting component 2213 and the second connecting component 2214 can both include a rotating kinematic pair connected in series, such as a rotating shaft. Taking the first connecting component 2213 as an example, one of the kinematic pairs can realize rotation around the normal direction of the first connecting component 2213, and the other kinematic pair can realize rotation around the normal direction perpendicular to the first connecting component 2213; in addition, the first connecting component 2213 and the second connecting component 2214 can also be a ball-jointed kinematic pair or a universal joint, etc.

[0048] In another embodiment, see Figure 1 As shown, the second posture adjustment mechanism 500 includes a telescopic component 510 and an angle adjustment component 520, wherein the telescopic component 510 is connected to the active suspension 400, the telescopic component 510 is used to change the vertical position of the active suspension 400, and the angle adjustment component 520 is arranged on the test frame 100 and connected to the telescopic component 510, and the angle adjustment component 520 is used to adjust the rotation angle of the telescopic component 510 relative to the test frame 100.

[0049] In this embodiment, the researchers use the telescopic assembly 510 to adjust the height position of the active suspension 400 in the vertical direction, and use the angle adjustment assembly 520 to adjust the angle position of the telescopic assembly 510, thereby adjusting the angle of the active suspension 400. The telescopic assembly 510 and the angle adjustment assembly 520 can jointly adjust the position and angle of the active suspension 400, thereby restoring the layout position of the active suspension 400 in the car. It should be noted that the angle adjustment assembly 520 can be achieved through electric control or mechanical rotation.

[0050] Further, in one embodiment, see Figure 3 As shown, the telescopic assembly 510 includes a telescopic rod 511, a telescopic sleeve 512 and a fastener 513. The telescopic rod 511 can move in the vertical direction relative to the telescopic sleeve 512. The fastener 513 is used to fix the position of the telescopic rod 511 relative to the telescopic sleeve 512. The telescopic rod 511 is connected to the active suspension 400, and the telescopic sleeve 512 is connected to the angle adjustment assembly 520.

[0051] In this embodiment, the researchers change the vertical position of the active suspension 400 by the relative movement of the telescopic rod 511 in the telescopic assembly 510 relative to the telescopic sleeve 512. After determining the vertical position of the active suspension 400, the fastener 513 fixes the position of the telescopic rod 511 relative to the telescopic sleeve 512. For example, a bolt is provided in the fastener 513, and the position of the telescopic rod 511 relative to the telescopic sleeve 512 is controlled by the bolt.

[0052] In one embodiment, a toothed bar is disposed on one side of the telescopic rod 511 and the fastener 513 opposite to each other. After the fastener 513 is engaged with the toothed bar in the telescopic rod 511 , the fastener 513 fixes the telescopic rod 511 to the telescopic sleeve 512 .

[0053] In this embodiment, the researchers set a toothed bar on the opposite side of the telescopic rod 511 and the fastener 513, and the meshing movement of the toothed bar can more accurately control the change in the distance of the telescopic rod 511 in the vertical direction.

[0054] In one embodiment, see Figure 3 As shown, the angle adjustment assembly 520 includes a first adjustment seat 521, a first rotating shaft 522, a second adjustment seat 523 and a second rotating shaft 524. The first adjustment seat 521 is set on the test frame 100, the second adjustment seat 523 is rotatably set on the first adjustment seat 521 along the first direction through the first rotating shaft 522, and the telescopic sleeve 512 is rotatably set on the second adjustment seat 523 along the second direction through the second rotating shaft 524.

[0055] In this embodiment, the researchers set the angle adjustment component 520 to be a structure composed of an adjustment seat and an axis, so as to achieve angle control of the active suspension 400 relative to the horizontal plane. Specifically, when it is necessary to change the angle of the active suspension 400 relative to the horizontal plane, the second adjustment seat 523 can rotate around the first rotation axis 522 to achieve rotation in the first direction, and the telescopic sleeve 512 can also rotate around the second rotation axis 524 to achieve rotation in the second direction. Through this angle adjustment method, the rotation angle of the active suspension 400 relative to the horizontal plane is changed.

[0056] Also, see Figure 5 As shown, in Figure 5 In the present invention, the researchers adjusted the telescopic sleeve 512 to rotate relative to the second rotating shaft 524, so that the telescopic sleeve 512 became inclined.

[0057] Also see Figure 6As shown, the researchers adjusted the relative horizontal rotation angle and horizontal position of the simulated loader 300 through the first posture adjustment mechanism 200, and adjusted the relative horizontal rotation angle and vertical position of the active suspension 400 through the second posture adjustment mechanism 500, so that the simulated loader 300 and the active suspension 400 are arranged on different axes, thereby restoring another scene arrangement of the active suspension 400 in the car. It should be noted that the first direction and the second direction can be set according to actual needs, for example, the first direction and the second direction can be two directions perpendicular to each other.

[0058] In one embodiment, the number of the telescopic components 510 and the number of the angle adjustment components 520 are the same, and both are three.

[0059] In this embodiment, the researchers set the number of telescopic components 510 and angle adjustment components 520 to be the same, that is, three each, so as to achieve more stable support for the active suspension 400.

[0060] In one embodiment, see Figure 1 As shown, a mounting plate 610 is further arranged between the first posture adjustment mechanism 200 and the simulation loader 300, and the mounting plate 610 is used to support the simulation loader 300; and / or, a claw mechanism 620 is further arranged between the active suspension 400 and the second posture adjustment mechanism 500, and the claw mechanism 620 is used to clamp the active suspension 400; the simulation loader 300 is an electromagnetic servo actuator; and / or, a stabilizing bar is further arranged between the simulation loader 300 and the test frame 100, and the stabilizing bar is used to limit the position of the simulation loader 300 relative to the test frame 100.

[0061] In the present embodiment, a mounting plate 610 is provided between the first posture adjustment mechanism 200 and the simulation loader 300, and the fixing of the simulation loader 300 is achieved through the mounting plate 610. In addition, a claw mechanism 620 is provided between the active suspension 400 and the second posture adjustment mechanism 500, and the active suspension 400 can be fixed through the claw mechanism 620. The second posture adjustment mechanism 500 is connected to the claw mechanism 620 to change the position of the active suspension 400. In addition, the simulation loader 300 is an electromagnetic servo actuator, which can generate different loading forces through programming control, thereby restoring the force that the active suspension 400 is subjected to in actual conditions, thereby improving the accuracy of the test. In addition, a stabilizing bar is also provided between the simulation loader 300 and the test frame 100, which can limit the position change of the simulation loader 300 relative to the test frame 100.

[0062] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An active suspension test device, characterized in that: The active suspension test device comprises: Test stand (100); A first posture adjustment mechanism (200) is arranged on the upper side of the test frame (100), the first posture adjustment mechanism (200) being used to adjust the rotation angle relative to the horizontal plane and to adjust the position in the horizontal direction; a simulation loader (300) for generating different loading forces, the simulation loader (300) being arranged at the lower side of the first posture adjustment mechanism (200) and connected to the first posture adjustment mechanism (200), the simulation loader (300) being controlled by the first posture adjustment mechanism (200) to adjust the rotation angle relative to the horizontal plane and the position in the horizontal direction; An active suspension (400) is arranged at the lower side of the simulated loader (300), and the active suspension (400) is used to bear the force applied by the simulated loader (300); A second posture adjustment mechanism (500) is arranged below the test frame (100), the second posture adjustment mechanism (500) is used to adjust the rotation angle relative to the horizontal plane and the position in the vertical direction, the second posture adjustment mechanism (500) is connected to the lower side of the active suspension (400), the second posture adjustment mechanism (500) is used to adjust the rotation angle of the active suspension (400) relative to the horizontal plane and the position in the vertical direction.

2. The active suspension test device according to claim 1, characterized in that: The first posture adjustment mechanism (200) comprises a sliding assembly (210) and a connecting rod assembly (220); the sliding assembly (210) is arranged on the upper side of the test frame (100) and can move in the horizontal direction relative to the test frame (100); one end of the connecting rod assembly (220) is connected to the sliding assembly (210), and the other end is connected to the simulation loader (300); the sliding assembly (210) drives the connecting rod assembly (220) to move to change the horizontal position of the simulation loader (300); when the connecting rod assembly (220) is deformed, the rotation angle of the simulation loader (300) relative to the horizontal direction is changed.

3. The active suspension test device according to claim 2, characterized in that: The test stand (100) is provided with a slide rail (110), and the sliding assembly (210) comprises a first slide block (211) and a second slide block (212) which are arranged opposite to each other, and the first slide block (211) and the second slide block (212) respectively move relative to the slide rail (110); The connecting rod assembly (220) includes a first connecting rod assembly (221) and a second connecting rod assembly (222), wherein one end of the first connecting rod assembly (221) is connected to the first slider (211), and the other end is connected to the simulation loader (300); one end of the second connecting rod assembly (222) is connected to the second slider (212), and the other end is connected to the simulation loader (300).

4. The active suspension test device according to claim 3, characterized in that: The first connecting rod assembly (221) and the second connecting rod assembly (222) both include a driving connecting rod (2211) and a driven connecting rod (2212), one end of the driving connecting rod (2211) is provided with a first connecting assembly (2213) for connecting the first sliding block (211), the first connecting assembly (2213) at least includes a rotational freedom around a normal direction of the first connecting assembly (2213) and a rotational freedom around a direction perpendicular to the normal of the first connecting assembly (2213), a second connecting assembly (2214) is provided between the other end of the driving connecting rod (2211) and the driven connecting rod (2212), the second connecting assembly (2214) at least includes a rotational freedom around a normal direction of the second connecting assembly (2214) and a rotational freedom around a direction perpendicular to the normal of the second connecting assembly (2214).

5. The active suspension test device according to claim 1, characterized in that: The second posture adjustment mechanism (500) comprises a telescopic component (510) and an angle adjustment component (520); the telescopic component (510) is connected to the active suspension (400); the telescopic component (510) is used to change the vertical position of the active suspension (400); the angle adjustment component (520) is arranged on the test frame (100) and connected to the telescopic component (510); the angle adjustment component (520) is used to adjust the rotation angle of the telescopic component (510) relative to the test frame (100).

6. The active suspension test device according to claim 5, characterized in that: The telescopic assembly (510) comprises a telescopic rod (511), a telescopic sleeve (512) and a fastener (513); the telescopic rod (511) can move in a vertical direction relative to the telescopic sleeve (512); the fastener (513) is used to fix the position of the telescopic rod (511) relative to the telescopic sleeve (512); the telescopic rod (511) is connected to the active suspension (400); and the telescopic sleeve (512) is connected to the angle adjustment assembly (520).

7. The active suspension test device according to claim 6, characterized in that: The angle adjustment assembly (520) comprises a first adjustment seat (521), a first rotating shaft (522), a second adjustment seat (523) and a second rotating shaft (524); the first adjustment seat (521) is arranged on the test frame (100); the second adjustment seat (523) is rotatably arranged on the first adjustment seat (521) along a first direction via the first rotating shaft (522); and the telescopic sleeve (512) is rotatably arranged on the second adjustment seat (523) along a second direction via the second rotating shaft (524).

8. The active suspension test device according to claim 6, characterized in that: The telescopic rod (511) and the fastener (513) are both provided with toothed bars opposite to each other, and after the fastener (513) is engaged with the toothed bar in the telescopic rod (511), the fastener (513) fixes the telescopic rod (511) to the telescopic sleeve (512).

9. The active suspension test device according to claim 6, characterized in that: The number of the telescopic components (510) is the same as the number of the angle adjustment components (520), and both are three.

10. The active suspension test device according to claim 1, characterized in that: A mounting plate (610) is further provided between the first posture adjustment mechanism (200) and the simulation loader (300), and the mounting plate (610) is used to support the simulation loader (300); and / or, a claw mechanism (620) is further provided between the active suspension (400) and the second posture adjustment mechanism (500), and the claw mechanism (620) is used to clamp the active suspension (400); and / or, the simulation loader (300) is an electromagnetic servo actuator; and / or, a stabilizing bar is further provided between the simulation loader (300) and the test frame (100), and the stabilizing bar is used to stabilize the position of the simulation loader (300) relative to the test frame (100).

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