Balance mechanism, test bench and test system

Abstract

The utility model provides a balance mechanism, a test bench and a test system, the number of balance bases is configured to be a plurality, the assembly top surfaces of all the balance bases are located in the same plane, the number of balance frames is configured to be a plurality, each balance frame is connected with at least two balance bases, and the balance bases are located in the same plane. Each balance frame comprises at least two connecting parts and at least one concave part which are connected, the connecting parts of the balance frames are configured to be used for being connected with the assembling top faces of the balance bases, and each concave part of the balance frames is located between every two adjacent balance bases. Balance assistance is formed through balance base points formed by the multiple balance bases at different positions in the annular distribution track, it is guaranteed that the movement assembly of the power mechanism reciprocates accurately along the movement track in the high-speed movement process, movement deviation generated when the movement speed of the movement assembly is too high is prevented, and the service life of the power mechanism is prolonged. Aiming at the characteristics that the damping of the CDC damper is continuously adjustable and the adjusting speed is high, stable test conditions are provided, and higher test requirements are met.

Description

Technical Field

[0001] This application relates to the field of intelligent driving technology, and in particular to balancing mechanisms, test benches, and test systems. Background Technology

[0002] With the continuous development of intelligent chassis technology, the installation volume of CDC dampers in vehicles is increasing. CDC dampers, or Continuous Damping Control, are a type of control system that can automatically adjust and continuously reduce vibrations. Because the damping of CDC dampers is continuously adjustable and the adjustment speed is fast, the testing requirements for test benches regarding the continuously adjustable damping and high-speed motion adjustment characteristics of CDC dampers are becoming more stringent.

[0003] However, existing test benches are prone to motion deviation when testing CDC dampers at high speeds, resulting in low motion stability. This fails to meet the evolving testing requirements and hinders the technological development of CDC dampers. Utility Model Content

[0004] Therefore, it is necessary to provide a balancing mechanism, a test bench, and a test system to address the aforementioned technical problems.

[0005] This application provides a balancing mechanism for a damper test bench, the balancing mechanism comprising:

[0006] The number of balancing bases is configured to be several, and all the balancing bases are distributed along a preset annular distribution trajectory. Each balancing base has an mounting top surface on its base body, and the mounting top surfaces of all the balancing bases are in the same plane.

[0007] A balancing frame, wherein the number of balancing frames is configured to be several, each balancing frame is connected to at least two balancing bases, wherein each balancing frame includes at least two connected portions and at least one recessed portion, the recessed portion being a groove structure, the connected portions of the balancing frame being configured to connect to the mounting top surface of the balancing base, and each recessed portion of the balancing frame being located between two adjacent balancing bases.

[0008] In one embodiment, the balancing mechanism includes:

[0009] A plurality of balancing pads are configured, each balancing pad being configured to fit into a matching recess in the balancing frame, the side of the balancing pad being in force-supported contact with the inner wall of the recess; and / or,

[0010] The number of support elements is configured to be several, and one support element is provided on the mounting top surface of each balance base. Each of the connecting parts of the balance frame is connected to the mounting top surface of the balance base through the support element.

[0011] In one embodiment, the number of balancing bases is even, and the number of balancing bases is configured to be at least two pairs, each pair of balancing bases being matched and connected to one of the balancing frames, wherein each balancing frame has two connecting portions located at both ends and a recess located between the two connecting portions, and the two connecting portions of each balancing frame are connected to the two mounting top surfaces of each pair of balancing bases.

[0012] In one embodiment, the annular distribution trajectory is configured as a square annular trajectory having four vertices, the number of balancing bases is configured to be four, the four balancing bases are respectively disposed at the four vertices of the square annular trajectory, the number of balancing frames is configured to be two, and the two connecting portions of each balancing frame are connected to the two mounting top surfaces of the same pair of balancing bases.

[0013] In one embodiment, the balancing frame includes:

[0014] A connecting plate, wherein at least a portion of the plate body area of ​​the connecting plate is configured to form the connecting portion, wherein the number of the connecting plates is configured to be two;

[0015] A curved panel, wherein at least a portion of the panel body has a recessed curved surface, the curved surface of the curved panel being configured to form the recess, and both ends of the curved panel being connected to the two connecting plates respectively.

[0016] In one embodiment, the curved panel includes a base plate and two upright plates. Both ends of the base plate are connected to one end of each of the two upright plates, and each upright plate is inclined relative to the base plate. This inclined connection between the base plate and the two upright plates forms the recess. The other ends of the two upright plates are connected to two connecting plates, and each upright plate is inclined relative to the connecting plates; and / or,

[0017] The connecting plate and the curved panel are configured as a single-piece structure; and / or,

[0018] A reinforcing corner plate is provided between the curved panel and the connecting plate.

[0019] In one embodiment, the balancing base includes:

[0020] Balance column;

[0021] A balancing top seat, which is mounted on the top of the balancing column, wherein the top of the balancing top seat is configured to form the mounting top surface;

[0022] A balancing base, which is mounted on the bottom of the balancing column;

[0023] A stabilizing base plate is configured as an assembly frame for mounting on a test bench, wherein the cross-sectional area of ​​the stabilizing base plate is larger than the cross-sectional area of ​​the balancing base, which is mounted on the stabilizing base plate.

[0024] In one embodiment, the balancing base includes:

[0025] The system includes several balancing poles, each parallel to the balancing column and arranged circumferentially around it. The top end of each pole is inserted into a balancing top seat, and the bottom end is inserted into a balancing base. The ratio of the diameter of the balancing column to the diameter of the balancing pole is between 5 and 15.

[0026] This application provides a test bench for experimental testing of dampers, the test bench comprising:

[0027] An assembly frame configured to define a motion trajectory, the motion trajectory being a straight line trajectory;

[0028] A power mechanism, comprising a power source and a motion component, wherein the power source is mounted on the assembly frame, and the motion component is movably mounted on the assembly frame along the motion trajectory, the power source and the motion component drive each other to drive the motion component to reciprocate relative to the assembly frame along the motion trajectory at a preset motion speed, and the motion component is configured to be connected to a damper.

[0029] A guiding mechanism is mounted on the assembly frame and configured to form a guiding trajectory, which is a straight trajectory and parallel to the motion trajectory. The motion component is movably assembled relative to the guiding mechanism along the guiding trajectory.

[0030] The balancing mechanism is assembled on the assembly frame, and the guiding mechanism is assembled on the balancing mechanism.

[0031] This application provides a testing system, the testing system comprising:

[0032] The test bench;

[0033] A driver, which is connected to the test bench;

[0034] A controller, the controller being connected to at least one of the test bench and the driver;

[0035] A host computer is connected to at least one of the test bench, the driver, and the controller.

[0036] In the aforementioned balancing mechanism, test bench, and testing system, several balancing bases can cooperate with each other. Each balancing base provides a balancing reference point within the overall balancing mechanism. Utilizing the balancing reference points formed by the different positions of these balancing bases along the circular distribution trajectory, a circular balancing combination structure is ultimately constructed along the circular distribution trajectory, providing balancing assistance. This ensures that the moving components of the power mechanism accurately reciprocate along the motion trajectory during high-speed movement, preventing deviations in motion when the moving components' speed is too high. When the moving components increase their speed, the damper's operating condition is effectively tested. Given the rapid development of CDC dampers, the system provides stable testing conditions for the continuously adjustable and fast-adjusting characteristics of CDC dampers, meeting the higher testing requirements of CDC dampers. Attached Figure Description

[0037] Figure 1 This is a perspective view of a test bench provided in one embodiment of this application.

[0038] Figure 2 For example Figure 1 The first exploded view of the test bench shown.

[0039] Figure 3 For example Figure 1 The second exploded view of the test bench shown.

[0040] Figure 4 This is a perspective view of a balancing mechanism provided in one embodiment of this application.

[0041] Figure 5 This is a partial exploded view of the balancing mechanism provided in one embodiment of this application.

[0042] Icon labels:

[0043] 10000, Assembly frame; 20000, Power mechanism; 30000, Guiding mechanism; 40000, Balancing mechanism;

[0044] 11000, Frame main body; 12000, Outer protective cover; 12100, First unit cover; 12200, Second unit cover;

[0045] 41000, Balancing base; 42000, Balancing frame; 43000, Balancing pad; 44000, Supporting element;

[0046] 41100, Balance column; 41200, Balance top mount; 41300, Balance base; 41400, Stable base plate; 41500, Balance pole;

[0047] 42010, Connecting part; 42020, Recessed part;

[0048] 42100, Connecting plate; 42200, Curved panel;

[0049] 42210, base plate; 42220, vertical plate; 42230, reinforcing corner plate. Detailed Implementation

[0050] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0051] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0052] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0056] See Figures 1 to 5 As shown, this application provides a test bench for damper experimental testing. The test bench includes an assembly frame 10000, a power mechanism 20000, a guide mechanism 30000, and a balancing mechanism 40000. The assembly frame 10000 serves as the assembly base for the power mechanism 20000, guide mechanism 30000, and balancing mechanism 40000. The specific dimensions and structure of the assembly frame 10000 can be specifically designed based on the assembly requirements of the power mechanism 20000, guide mechanism 30000, and balancing mechanism 40000. The assembly frame 10000 is configured to define a linear motion trajectory, which limits the movement of the power mechanism 20000.

[0057] The assembly frame 10000 includes a frame body 11000 and an outer protective cover 12000. The outer protective cover 12000 includes a first unit cover 12100 and a second unit cover 12200, which together constitute the outer protective cover 12000. The inner cavity of the first unit cover 12100 is configured to form a first frame unit space. The inner cavity of the second unit cover 12200 is configured to form a second frame unit space, and at least a portion of the second unit cover 12200 is a viewing area. Therefore, when the damper moves within the second frame unit space, the movement of the damper can be observed using the viewing area.

[0058] The power mechanism 20000 includes a power source and a motion component. The power source is mounted on the assembly frame 10000, and the motion component is mounted on the assembly frame 10000 along a motion trajectory. The power source and the motion component drive each other. The power source can adopt different types of power such as electromagnetic power and mechanical power. The power source provides the energy source for the motion of the motion component. Thus, the power source can drive the motion component to reciprocate relative to the assembly frame 10000 along the motion trajectory at a preset motion speed. This motion speed can be adjusted according to actual needs. Thus, when the motion component is connected to the damper, the motion of the motion component can synchronously drive the damper to move at the same speed. This method is used to control the damper to simulate operation and test the working condition of the damper.

[0059] During the operational testing of the damper by the aforementioned motion component, the guide mechanism 30000 further provides guiding assistance to the motion component, and the balancing mechanism 40000 further provides balancing assistance to the motion component. Specifically, the guide mechanism 30000 is mounted on the assembly frame 10000 and is configured to form a guide trajectory. The guide trajectory is a straight line and parallel to the motion trajectory. The motion component is movably assembled relative to the guide mechanism 30000 along the guide trajectory. The balancing mechanism 40000 is mounted on the assembly frame 10000, and at least one of the guide mechanism 30000 and the power mechanism 20000 is mounted on the balancing mechanism 40000.

[0060] The guiding aid is mainly used to ensure that the moving components move accurately along the motion trajectory during high-speed movement, and to prevent the movement of the moving components from deviating when the movement speed is too high. The balancing mechanism 40000 is mainly used to ensure that the moving components maintain stability during high-speed movement, and to prevent the moving components from becoming unstable relative to the assembly frame 10000 when the movement speed is too high, which would lead to deviation of the movement.

[0061] Therefore, it can be seen that the guiding and balancing assistance provided by the guiding mechanism 30000 and the balancing mechanism 40000 to the power mechanism 20000 can ensure that the motion components of the power mechanism 20000 maintain high precision and high stability during the motion test of the damper. When the motion component increases its speed, it can also effectively test the working condition of the damper. In the context of the rapid development of CDC dampers, it provides stable test conditions for the characteristics of CDC dampers that the damping is continuously adjustable and the adjustment speed is fast, thus meeting the higher test requirements of CDC dampers.

[0062] Regarding the aforementioned balancing mechanism 40000, in one embodiment, the balancing mechanism 40000 includes a balancing base 41000 and a balancing frame 42000. The number of balancing bases 41000 is configured to be several, all distributed along a preset annular distribution trajectory. Each balancing base 41000 has an mounting surface on its top, and all mounting surfaces of the balancing bases 41000 are in the same plane. Therefore, the several balancing bases 41000 can cooperate with each other, and each balancing base 41000 can provide a balancing base point in the overall balancing mechanism 40000. Utilizing the balancing base points formed by the different positions of the several balancing bases 41000 in the annular distribution trajectory, a ring-shaped balancing assembly structure is ultimately formed along the annular distribution trajectory.

[0063] It should be noted that the ring-shaped balance assembly structure is not a continuous ring, but rather a discontinuous ring-shaped balance assembly structure formed by the number and distribution density of the balance bases 41000 in the ring distribution trajectory. The purpose is to adjust the number, distribution density, and distribution method of the balance bases 41000 according to actual support requirements, so as to form a targeted and stable balance support force. This ensures that the moving component is provided with stable balance support during high-speed movement, and prevents the assembly of the moving component relative to the assembly frame 10000 from becoming unstable when the moving component's speed is too high, thus preventing deviation from the movement.

[0064] The number of balance frames 42000 is configured to be several. The function of the balance frames 42000 is to connect the aforementioned balance bases 41000, so that each independent balance base 41000 can be connected by the balance frames 42000 to form one or more relatively stable integral structures. For example, each balance frame 42000 is connected to at least two balance bases 41000. Each balance frame 42000 includes at least two connected parts 42010 and at least one recessed part 42020. The recessed part 42020 is a groove structure. The recessed part 42020 can be used to avoid the movement of the moving component. That is, the moving component can enter and exit the recessed part 42020 during high-speed reciprocating motion. The connected parts 42010 of the balance frame 42000 are configured to connect with the mounting top surface of the balance base 41000. Each recessed part 42020 of the balance frame 42000 is located between two adjacent balance bases 41000. Therefore, some structures of the motion component can move between adjacent balance bases 41000, thereby forming a balanced support on different sides of the motion component through the adjacent balance bases 41000, ensuring the balance effect during the motion process.

[0065] In one embodiment, the balancing mechanism 40000 may include a balancing pad 43000 or a support element 44000, etc. The number of balancing pads 43000 is configured to be plurality of, each balancing pad 43000 being configured to be fitted into a matching recess 42020 of the balancing frame 42000. The side of the balancing pad 43000 is in force-supported contact with the inner wall of the recess 42020, thereby providing force support to the overall frame structure of the balancing frame 42000. This prevents deformation of the balancing frame 42000 due to large impact forces exerted on it during high-speed movement of the moving components, and avoids reduced stability of the balancing support due to deformation of the balancing frame 42000. The number of support elements 44000 is configured to be several, with one support element 44000 provided on the mounting top surface of each balance base 41000. Each connection part 42010 of the balance frame 42000 is connected to the mounting top surface of the balance base 41000 through the support element 44000. The support element 44000 can be assembled from components such as bolts and nuts, with the purpose of stably connecting the balance frame 42000 and the balance base 41000.

[0066] The number and arrangement of the balancing bases 41000 and the balancing frames 42000 can be set according to actual conditions. For example, in one embodiment, the number of balancing bases 41000 is even, and the number of balancing bases 41000 is configured to be at least two pairs. Each pair of balancing bases 41000 is matched and connected to a balancing frame 42000. Each balancing frame 42000 has two connecting portions 42010 located at both ends and a recess 42020 located between the two connecting portions 42010. The two connecting portions 42010 of each balancing frame 42000 are connected to the two mounting top surfaces of each pair of balancing bases 41000.

[0067] The circular distribution trajectory can be configured as a square circular trajectory, which is equivalent to a circular trajectory formed along the edge of a square. Therefore, the square circular trajectory has four vertex portions. The number of balance bases 41000 is configured to be four, and the four balance bases 41000 are respectively set at the four vertex portions of the square circular trajectory. The number of balance frames 42000 is configured to be two, and the two connecting portions 42010 of each balance frame 42000 are connected to the two mounting top surfaces of the same pair of balance bases 41000.

[0068] In one embodiment, the balance frame 42000 includes a connecting plate 42100 and a curved panel 42200. At least a portion of the plate area of ​​the connecting plate 42100 is configured to form a connecting portion 42010, wherein two connecting plates 42100 are configured. At least a portion of the plate area of ​​the curved panel 42200 has a recessed curved surface, the curved surface of which is configured to form a recess 42020. Both ends of the curved panel 42200 are respectively connected to the two connecting plates 42100. Therefore, a complete balance frame 42000 can be constituted by one curved panel 42200 and two connecting plates 42100.

[0069] The curved panel 42200 can be configured as a U-shape or similar structure, thereby forming a recess 42020 in the middle of the curved panel 42200. In one embodiment, the curved panel 42200 may include a base plate 42210 and two upright plates 42220. The two ends of the base plate 42210 are respectively connected to one end of the two upright plates 42220, and each upright plate 42220 is inclined relative to the base plate 42210. The angle of the inclined connection can be set to 60 degrees. An angle between 60° and 120°, for example, 90° or about 90°, is used to form a recess 42020 by the inclined connection of the base plate 42210 and the two upright plates 42220. The other ends of the two upright plates 42220 are respectively connected to the two connecting plates 42100, and each upright plate 42220 is inclined relative to the connecting plate 42100. The angle of the inclined connection can be set between 60° and 120°, for example, 90° or about 90°.

[0070] The connecting plate 42100 and the curved panel 42200 are configured as a single-piece structure, or the base plate 42210 and the two upright plates 42220 can also be configured as a single-piece structure, so that each balancing frame 42000 can be configured as a single-piece structure. A reinforcing corner plate 42230 may also be provided between the curved panel 42200 and the connecting plate 42100.

[0071] In one embodiment, the balancing base 41000 includes a balancing column 41100, a balancing top seat 41200, a balancing base 41300, and a stabilizing base plate 41400. The stabilizing base plate 41400 serves as the assembly base for the balancing column 41100, the balancing top seat 41200, and the balancing base 41300. The balancing top seat 41200 is assembled on the top of the balancing column 41100, and the top of the balancing top seat 41200 is configured to form an assembly top surface. The balancing base 41300 is assembled on the balancing column 41100. At the bottom of 00, the stable base plate 41400 is configured as an assembly frame 10000 for mounting on the test bench. The cross-sectional area of ​​the stable base plate 41400 is larger than that of the balance base 41300. The balance base 41300 is mounted on the stable base plate 41400. Based on its larger cross-sectional area, the stable base plate 41400 provides a more stable assembly foundation for the balance column 41100, the balance top seat 41200, and the balance base 41300, so that the entire balance base 41000 has a stable overall structure.

[0072] In addition, in one embodiment, the balancing base 41000 may further include balancing uprights 41500. The number of balancing uprights 41500 is configured to be several, all parallel to the balancing column 41100, and arranged around the balancing column 41100 circumferentially. The top end of each balancing upright 41500 is inserted into the balancing top seat 41200, and the bottom end of each balancing upright 41500 is inserted into the balancing base 41300. The ratio of the diameter of the balancing column 41100 to the diameter of the balancing upright 41500 is between 5 and 15, meaning the balancing upright 41500 is thinner than the balancing column 41100.

[0073] Since several balance rods 41500 are arranged around the balance column 41100, the assembly of the balance top seat 41200 and the balance base 41300 can be further reinforced around the balance column 41100. During the high-speed movement of the moving components, the moving components may exert a large impact force on the balance frame 42000 and different balance bases 41000. In order to avoid the balance column 41100, balance top seat 41200, balance base 41300 and stable base plate 41400 of the balance base 41000 having a stable assembly state under a large impact force, several circumferentially distributed balance rods 41500 can form force support for the balance top seat 41200 and balance base 41300 at different positions around the balance column 41100, ensuring that all components of the balance base 41000 have a stable assembly state, thereby ensuring that the high-demand test conditions for the damper can be provided through the high-speed movement of the moving components.

[0074] This application provides a testing system, which includes a test bench, a driver, a controller, and a host computer. The driver is connected to the test bench, the controller is connected to at least one of the test bench and the driver, and the host computer is connected to at least one of the test bench, the driver, and the controller. Since the specific structure, functional principle, and technical effects of the aforementioned balancing mechanism 40000 and the test bench have been described in detail above, they will not be repeated here. Any technical details regarding the aforementioned balancing mechanism 40000 and the test bench can be found in the foregoing description.

[0075] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0076] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A balancing mechanism, characterized in that, The balancing mechanism includes: The number of balancing bases is configured to be several, and all the balancing bases are distributed along a preset annular distribution trajectory. Each balancing base has an mounting top surface on its base body, and the mounting top surfaces of all the balancing bases are in the same plane. A balancing frame, wherein the number of balancing frames is configured to be several, each balancing frame is connected to at least two balancing bases, wherein each balancing frame includes at least two connected portions and at least one recessed portion, the recessed portion being a groove structure, the connected portions of the balancing frame being configured to connect to the mounting top surface of the balancing base, and each recessed portion of the balancing frame being located between two adjacent balancing bases.

2. The balancing mechanism according to claim 1, characterized in that, The balancing mechanism includes: A plurality of balancing pads are configured, each balancing pad being configured to fit into a matching recess in the balancing frame, the side of the balancing pad being in force-supported contact with the inner wall of the recess; and / or, The number of support elements is configured to be several, and one support element is provided on the mounting top surface of each balance base. Each of the connecting parts of the balance frame is connected to the mounting top surface of the balance base through the support element.

3. The balancing mechanism according to claim 1, characterized in that, The number of the balancing bases is even, and the number of the balancing bases is configured to be at least two pairs. Each pair of the balancing bases is matched and connected to one of the balancing frames. Each balancing frame has two connecting portions located at both ends and a recess located between the two connecting portions. The two connecting portions of each balancing frame are connected to the two mounting top surfaces of each pair of balancing bases.

4. The balancing mechanism according to claim 3, characterized in that, The annular distribution trajectory is configured as a square annular trajectory having four vertices. The number of balancing bases is configured to be four, with the four balancing bases respectively disposed at the four vertices of the square annular trajectory. The number of balancing frames is configured to be two, with the two connecting portions of each balancing frame connected to the two mounting top surfaces of the same pair of balancing bases.

5. The balancing mechanism according to claim 1, characterized in that, The balancing framework includes: A connecting plate, wherein at least a portion of the plate body area of ​​the connecting plate is configured to form the connecting portion, wherein the number of the connecting plates is configured to be two; A curved panel, wherein at least a portion of the panel body has a recessed curved surface, the curved surface of the curved panel being configured to form the recess, and both ends of the curved panel being connected to the two connecting plates respectively.

6. The balancing mechanism according to claim 5, characterized in that, The curved panel includes a base plate and two upright plates. Both ends of the base plate are connected to one end of each of the two upright plates, and each upright plate is connected at an angle relative to the base plate. This angled connection between the base plate and the two upright plates forms the recessed portion. The other ends of the two upright plates are connected to two connecting plates, and each upright plate is connected at an angle relative to the connecting plates; and / or, The connecting plate and the curved panel are configured as a single-piece structure; and / or, A reinforcing corner plate is provided between the curved panel and the connecting plate.

7. The balancing mechanism according to claim 1, characterized in that, The balancing base includes: Balance column; A balancing top seat, which is mounted on the top of the balancing column, wherein the top of the balancing top seat is configured to form the mounting top surface; A balancing base, which is mounted on the bottom of the balancing column; A stabilizing base plate is configured as an assembly frame for mounting on a test bench, wherein the cross-sectional area of ​​the stabilizing base plate is larger than the cross-sectional area of ​​the balancing base, which is mounted on the stabilizing base plate.

8. The balancing mechanism according to claim 7, characterized in that, The balancing base includes: The system includes several balancing poles, each parallel to the balancing column and arranged circumferentially around it. The top end of each pole is inserted into a balancing top seat, and the bottom end is inserted into a balancing base. The ratio of the diameter of the balancing column to the diameter of the balancing pole is between 5 and 15.

9. A test bench, characterized in that, The test bench includes: An assembly frame configured to define a motion trajectory, the motion trajectory being a straight line trajectory; A power mechanism, comprising a power source and a motion component, wherein the power source is mounted on the assembly frame, and the motion component is movably mounted on the assembly frame along the motion trajectory, the power source and the motion component drive each other to drive the motion component to reciprocate relative to the assembly frame along the motion trajectory at a preset motion speed, and the motion component is configured to be connected to a damper. A guiding mechanism is mounted on the assembly frame and configured to form a guiding trajectory, which is a straight trajectory and parallel to the motion trajectory. The motion component is movably assembled relative to the guiding mechanism along the guiding trajectory. The balancing mechanism as described in any one of claims 1-8, wherein the balancing mechanism is assembled to the assembly frame, and the guiding mechanism is assembled to the balancing mechanism.

10. A testing system, characterized in that, The testing system includes: The test bench as described in claim 9; A driver, which is connected to the test bench; A controller, the controller being connected to at least one of the test bench and the driver; A host computer is connected to at least one of the test bench, the driver, and the controller.

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