Power mechanism, test bench and test system

Abstract

The utility model provides a power mechanism, a test bench and a test system, a motion assembly comprises a motion base and an output part, a power source is in driving cooperation with the motion base and is used for driving the motion base to reciprocate relative to an assembly frame along a motion track at a preset motion speed, and the output part is assembled on the motion base and is used for driving the assembly frame to move. The output component is configured to be connected with a damper, the movement base is provided with at least one guide hole, a floating shaft sleeve is assembled in each guide hole, and the guide holes are configured to be movably assembled with guide mechanisms through the floating shaft sleeves. Based on indirect assembly of the floating shaft sleeve between the guide mechanism and the guide hole, friction force can be greatly reduced when the guide mechanism reciprocates relative to the guide hole, and when the motion base reciprocates along the motion trail, the motion speed can be increased due to the fact that the friction force is greatly reduced. The accurate reciprocating motion of the motion base along the motion trail and the guide trail is ensured, and stable and accurate test conditions are further provided.

Description

Technical Field

[0001] This application relates to the field of intelligent driving technology, and in particular to power 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 cannot meet the evolving testing needs, thus hindering the technological development of CDC dampers. Therefore, providing a motion-stable test bench that can meet higher testing requirements has become a pressing technical problem for those skilled in the art. Utility Model Content

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

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

[0006] A power source configured for mounting on an assembly frame of the test bench, the assembly frame being configured to define a motion trajectory, the motion trajectory being a straight line trajectory;

[0007] A motion assembly includes a motion base and an output component. A power source drives the motion base to reciprocate relative to the assembly frame along the motion trajectory at a preset speed. The output component is mounted on the motion base and is configured to connect to a damper. The motion base has at least one guide hole, and a floating bushing is mounted in each guide hole. The guide hole is configured to movably assemble a guide mechanism through the floating bushing.

[0008] In one embodiment, the motion base includes:

[0009] The main motion seat has at least two main motion seat sidewalls facing different directions, and a plurality of the main motion seat sidewalls are arranged around the circumference of the main motion seat. The top wall of the main motion seat is provided with an output mounting position, and the output component is assembled into the output mounting position of the main motion seat. The main motion seat is configured to open the guide hole.

[0010] The combined motion plate includes at least two motion plate components, the number of which is the same as the number of main body sidewalls of the main motion seat. Each motion plate component is assembled and connected to a matching main body sidewall of the main motion seat, and the plane of each motion plate component is parallel to the motion trajectory. The power source is driven and cooperates with at least one of the main motion seat and the combined motion plate to drive the main motion seat to reciprocate relative to the assembly frame along the motion trajectory at a preset motion speed.

[0011] In one embodiment, the motion base further includes:

[0012] The sliding transmission members, the number of which is the same as the number of the moving plates, each sliding transmission member includes a connecting part and a sliding part that are connected to each other. Each sliding transmission member is fixedly connected to a matching moving plate based on its connecting part, and each sliding transmission member is configured to be movably assembled to the assembly frame of the test bench through its sliding part. Each moving plate is connected to a matching sliding transmission member.

[0013] In one embodiment, the connecting portion of the sliding transmission member is configured as a straight column, and a positioning groove is provided on the outer side of the moving plate. The positioning groove is a straight groove along the longitudinal direction of the moving plate. The positioning groove has a top wall and two side walls connecting the top wall. The top wall of the positioning groove is located at the top of the positioning groove, and the bottom of the positioning groove has a through slot. The connecting portion of the sliding transmission member is configured to be assembled in the positioning groove along the longitudinal direction of the moving plate, and the top of the connecting portion abuts against the top wall of the positioning groove.

[0014] In one embodiment, the motion base further includes:

[0015] An auxiliary motion seat has at least two auxiliary seat sidewalls facing different directions, and a plurality of the auxiliary seat sidewalls are arranged around the circumference of the main motion seat, wherein each of the auxiliary seat sidewalls is parallel to and in the same plane with a matching main seat sidewall of the main motion seat;

[0016] Each of the moving plates has a first snap-fit ​​part and a second snap-fit ​​part on its inner side surface. Each side wall of the main moving seat is snap-fitted to a first snap-fit ​​part of a matching moving plate. Each side wall of the auxiliary moving seat is snap-fitted to a second snap-fit ​​part of a matching moving plate.

[0017] The guide hole is provided in at least one of the main motion seat and the auxiliary motion seat.

[0018] In one embodiment, the first snap-fit ​​portion is configured as a first snap-fit ​​groove, the first snap-fit ​​groove having a groove top wall and a groove bottom wall that are opposite each other along the longitudinal direction of the moving plate, and the first snap-fit ​​groove having two through slots that are opposite each other along the transverse direction of the moving plate, the main moving seat being snap-fitted into the first snap-fit ​​groove, and the top of the main moving seat being in limiting contact with the groove top wall of the first snap-fit ​​groove, and the bottom of the main moving seat being in limiting contact with the groove bottom wall of the first snap-fit ​​groove.

[0019] In one embodiment, the second snap-fit ​​portion is configured as a second snap-fit ​​groove, the second snap-fit ​​groove having a groove top wall and a groove bottom wall that are opposite each other along the longitudinal direction of the moving plate, and the second snap-fit ​​groove having two through slots that are opposite each other along the transverse direction of the moving plate, the auxiliary motion seat being snap-fitted into the second snap-fit ​​groove, and the top of the auxiliary motion seat being in limiting contact with the groove top wall of the second snap-fit ​​groove, and the bottom of the auxiliary motion seat being in limiting contact with the groove bottom wall of the second snap-fit ​​groove.

[0020] In one embodiment, the moving plate includes:

[0021] Intermediate plate;

[0022] A top plate is connected to the top of the middle plate. A first snap-fit ​​portion is disposed on the top plate. The top plate is configured to be connected to the side wall of the main body seat of the main body moving seat via the first snap-fit ​​portion.

[0023] A bottom plate is connected to the bottom of the middle plate, and a second snap-fit ​​portion is disposed on the bottom plate. The bottom plate is configured to be connected to the auxiliary seat sidewall of the auxiliary motion seat via the second snap-fit ​​portion.

[0024] This application provides a test bench for experimental testing of dampers, the test bench comprising:

[0025] An assembly frame configured to define a motion trajectory, the motion trajectory being a straight line trajectory;

[0026] The power mechanism is assembled on the assembly frame;

[0027] A guiding mechanism is mounted on the assembly frame. The motion component is movably mounted to the guiding mechanism through the guide hole and the floating bushing. The guiding mechanism is configured to form a guide trajectory, which is a straight trajectory and is parallel to the motion trajectory. The motion component is configured to move relative to the guiding mechanism along the guide trajectory.

[0028] A balancing mechanism is assembled to the assembly frame, and at least one of the guiding mechanism and the power mechanism is assembled to the balancing mechanism.

[0029] This application provides a testing system, the testing system comprising:

[0030] The test bench;

[0031] A driver, which is connected to the test bench;

[0032] A controller, the controller being connected to at least one of the test bench and the driver;

[0033] A host computer is connected to at least one of the test bench, the driver, and the controller.

[0034] In the aforementioned power mechanism, test bench, and testing system, the motion base has at least one guide hole, and a floating bushing is installed in each guide hole. The guide hole is configured to movably assemble a guide mechanism through the floating bushing. Therefore, the corresponding structure of the guide mechanism can movably pass through the floating bushing within the guide hole. Based on the indirect assembly of the floating bushing between the guide mechanism and the guide hole, the friction force is greatly reduced when the guide mechanism reciprocates relative to the guide hole. Thus, when the motion base reciprocates along the motion trajectory, the movement speed can be increased due to the significantly reduced friction force. This guide mechanism, based on the formed guide trajectory, ensures that the motion base accurately reciprocates along both the motion trajectory and the guide trajectory, thereby providing stable and accurate testing conditions. Attached Figure Description

[0035] Figure 1 This is a perspective view of a test bench provided in one embodiment of this application.

[0036] Figure 2 For example Figure 1 The first exploded view of the test bench shown.

[0037] Figure 3 For example Figure 1 The second exploded view of the test bench shown.

[0038] Figure 4 This is a perspective view of a power mechanism provided in one embodiment of this application.

[0039] Figure 5 For example Figure 4 The first exploded view of the power mechanism shown.

[0040] Figure 6 This is a partial perspective view of the power mechanism provided in one embodiment of this application.

[0041] Figure 7 For example Figure 6 The first exploded view of the local power mechanism shown.

[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] 21000, motion components;

[0046] 21100, Motion base; 21200, Output component;

[0047] 21110, Main motion seat; 21120, Combined motion plate; 21130, Auxiliary motion seat; 21140, Guide hole;

[0048] 21121. Moving plate; 21122. Positioning groove; 21123. First snap-fit ​​part; 21124. Second snap-fit ​​part; 21125. Middle plate; 21126. Top plate; 21127. Bottom plate;

[0049] 31000, guide column component; 33000, sliding transmission component;

[0050] 33100, Connecting part; 33200, Sliding part. Detailed Implementation

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] See Figures 1 to 7 As shown, 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. Regarding the aforementioned test bench for damper experimental testing, the test bench may include 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 basis for the power mechanism 20000, the guide mechanism 30000, and the balancing mechanism 40000. The specific dimensions and structure of the assembly frame 10000 can be specifically set based on the assembly requirements of the power mechanism 20000, the guide mechanism 30000, and the balancing mechanism 40000. The assembly frame 10000 needs to be configured to define a motion trajectory, which is a linear trajectory, and the motion trajectory is used to define the movement mode of the power mechanism 20000.

[0058] 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.

[0059] In one embodiment, the power mechanism 20000 may include a power source and a motion component 21000. The power source is mounted on the assembly frame 10000, and the motion component 21000 is movably mounted on the assembly frame 10000 along a motion trajectory. The power source and the motion component 21000 drive each other. The power source may adopt different types of power such as electromagnetic power or mechanical power. The power source provides the energy source for the motion of the motion component 21000. Thus, the power source can drive the motion component 21000 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 21000 is connected to the damper, the motion of the motion component 21000 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.

[0060] During the damper operation test performed by the aforementioned motion component 21000, the guide mechanism 30000 further provides guiding assistance to the motion component 21000, and the balancing mechanism 40000 further provides balancing assistance to the motion component 21000. 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 21000 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.

[0061] The guiding aid is mainly used to ensure that the motion component 21000 moves accurately along the motion trajectory during high-speed motion, and to prevent the motion component 21000 from deviating when the motion speed is too high. The balancing mechanism 40000 is mainly used to ensure that the motion component 21000 maintains stability during high-speed motion, and to prevent the motion component 21000 from becoming unstable relative to the assembly frame 10000 when the motion speed is too high, which would lead to deviation of motion.

[0062] Therefore, the guiding and balancing assistance provided to the power mechanism 20000 by the guide mechanism 30000 and the balancing mechanism 40000 ensures that both the motion component 21000 and the damper maintain high precision and stability during motion testing of the damper. Even when the motion component 21000 increases its speed, it can effectively test the damper's operating conditions. Given the rapid development of CDC dampers, the continuously adjustable and fast-adjusting characteristics of CDC dampers provide stable testing conditions, meeting the higher testing requirements of CDC dampers.

[0063] Regarding the aforementioned power mechanism 20000, the motion component 21000 of the power mechanism 20000 can adopt various structures, mainly for facilitating the installation of the damper. In one embodiment, the motion component 21000 includes a motion base 21100 and an output component 21200. The power source is driven to cooperate with the motion base 21100 to drive the motion base 21100 to reciprocate relative to the assembly frame 10000 along the motion trajectory at a preset motion speed. The output component 21200 is assembled on the motion base 21100 and is configured to be connected to the damper. The motion base 21100 has at least one guide hole 21140, and a floating bushing is assembled in each guide hole 21140. The guide hole 21140 is configured to movably assemble the guide mechanism 30000 through the floating bushing.

[0064] At this time, the power source drives the motion base 21100 to reciprocate relative to the assembly frame 10000 along the motion trajectory at a preset speed. The output component 21200 is mounted on the motion base 21100 and is configured to connect to the damper. Therefore, when the power source drives the motion component 21000 to reciprocate relative to the assembly frame 10000 along the motion trajectory at a preset speed, the movement of the motion component 21000 can synchronously drive the output component 21200 and the damper to move at the same speed. The output component 21200 can be configured as a structure that facilitates connection or installation of the damper, such as a column, and is not limited here.

[0065] In one embodiment, the guide mechanism 30000 includes at least one guide post 31000. For example, two guide posts 31000 that cooperate with each other in parallel are provided. The guide posts 31000 are straight posts and are configured to form a guide trajectory. Therefore, the main motion seat 21110 and the auxiliary motion seat 21130 may be provided with guide holes 21140, and all guide posts 31000 are movably inserted into the guide holes 21140.

[0066] Each guide hole 21140 can be fitted with a floating bushing, and the guide post 31000 is movably inserted into the floating bushing within the guide hole 21140. Based on the indirect assembly of the floating bushing between the guide post 31000 and the guide hole 21140, the friction force is greatly reduced when the guide post 31000 reciprocates relative to the guide hole 21140. Therefore, when the moving base 21100 reciprocates along the motion trajectory, the motion speed can be increased due to the greatly reduced friction force. The guide post 31000 can ensure that the moving base 21100 reciprocates accurately along the motion trajectory and the guide trajectory based on the formed guide trajectory, thereby providing stable and accurate test conditions.

[0067] In one embodiment, the motion base 21100 includes a main motion base 21110 and a combined motion plate 21120. The main motion base 21110 has at least two main base sidewalls facing different directions. Several main base sidewalls are arranged around the main motion base 21110 circumferentially. For example, the main motion base 21110 has two main base sidewalls facing opposite directions, i.e., the two main base sidewalls are located on opposite sides of the main motion base 21110. The top wall of the main base 21110 is provided with an output mounting position, and an output component 21200 is assembled to the output mounting position of the main motion base 21110. When the output component 21200 is a column, it can be vertically assembled to the output mounting position of the main motion base 21110. For example, the output component 21200 can be directly and vertically connected to the output mounting position of the main motion base 21110, or it can be indirectly assembled to the output mounting position of the main motion base 21110 via a pad, block, or the like.

[0068] The combined motion plate 21120 includes at least two motion plate components 21121. The number of motion plate components 21121 is the same as the number of main body sidewalls of the main motion seat 21110. For example, the combined motion plate 21120 has two motion plate components 21121, and the two motion plate components 21121 are matched with the two main body sidewalls of the main motion seat 21110. At this time, each motion plate component 21121 is assembled and connected to a matching main body sidewall of the main motion seat 21110, and the plane of each motion plate component 21121 is parallel to the motion trajectory. Among them, several moving plates 21121 are movably assembled on the assembly frame 10000 along the motion trajectory. The power source is driven and cooperated with at least one of the main moving seat 21110 and the combined moving plate 21120. For example, the power source is connected to the combined moving plate 21120, and then indirectly connected to the main moving seat 21110 through the combined moving plate 21120, thereby driving the main moving seat 21110 to reciprocate relative to the assembly frame 10000 along the motion trajectory at a preset motion speed.

[0069] In one embodiment, the motion base 21100 further includes sliding transmission members 33000. The number of sliding transmission members 33000 is the same as the number of motion plates 21121. Each sliding transmission member 33000 includes a connecting portion 33100 and a sliding portion 33200 that are interconnected. The connecting portion 33100 and the sliding portion 33200 can be configured with different shapes as needed, such as plate-shaped, column-shaped, spherical, etc., without limitation. Each sliding transmission member 33000 is fixedly connected to a matching motion plate 21121 based on its connecting portion 33100, and each sliding transmission member 33000 is movably assembled to the assembly frame 10000 based on its sliding portion 33200. Therefore, each motion plate 21121 can be movably assembled to the assembly frame 10000 along a motion trajectory via a matching sliding transmission member 33000.

[0070] In one embodiment, the connecting portion 33100 of the sliding transmission member 33000 is configured as a straight column, such as a cylinder or prism. In this case, a positioning groove 21122 can be provided on the outer surface of the moving plate 21121. The shape and size of the positioning groove 21122 can be adapted to the connecting portion 33100 of the sliding transmission member 33000. For example, the positioning groove 21122 is a straight groove along the longitudinal direction of the moving plate 21121. The positioning groove 21122 has a groove top wall and a connecting portion 33100. The top wall of the groove has two side walls. At this time, the top wall of the positioning groove 21122 is located at the top of the positioning groove 21122. The bottom of the positioning groove 21122 has a through groove, which makes the positioning groove 21122 open in the longitudinal direction, forming a groove structure that is enclosed on three sides and open on one side, rather than a groove structure that is enclosed on all four sides in the circumferential direction in the conventional case. The connecting part 33100 of the sliding transmission member 33000 is configured to be assembled in the positioning groove 21122 along the longitudinal direction of the moving plate 21121.

[0071] Since the positioning groove 21122 forms a groove structure that is enclosed on three sides and open on one side, the top of the connecting part 33100 can mutually limit and abut against the top wall of the positioning groove 21122. During the movement of the sliding transmission member 33000 relative to the assembly frame 10000 based on its sliding part 33200, as the sliding transmission member 33000 moves towards the top along its movement trajectory, the top of the connecting part 33100 can be pressed more tightly against the top wall of the positioning groove 21122, thereby ensuring the sliding... When the sliding transmission component 33000 and the moving plate 21121 move toward the top, they maintain absolute synchronous movement. Even when the movement speed is high, the acceleration is large, and the force between them is also large, the mutual limiting contact between the top of the connecting part 33100 and the top wall of the positioning groove 21122 can ensure that the sliding transmission component 33000 and the moving plate 21121 maintain absolute synchronous movement when moving toward the top, thereby providing superior test conditions and meeting the higher test requirements of the CDC damper.

[0072] In addition to the main motion seat 21110, in one embodiment, the motion base 21100 also includes an auxiliary motion seat 21130. The auxiliary motion seat 21130 has at least two auxiliary seat sidewalls facing different directions. Several auxiliary seat sidewalls are arranged around the main motion seat 21110 circumferentially. For example, the auxiliary motion seat 21130 has two auxiliary seat sidewalls facing opposite directions, i.e., the two auxiliary seat sidewalls are located on opposite sides of the auxiliary motion seat 21130. Each auxiliary seat sidewall of the auxiliary motion seat 21130 is parallel to and in the same plane as a matching main seat sidewall of the main motion seat 21110. At least one of the main motion seat 21110 and the auxiliary motion seat 21130 has the guide hole 21140.

[0073] Each moving plate 21121 has a first engaging portion 21123 and a second engaging portion 21124 on its inner side surface. Each main body sidewall of the main moving seat 21110 is engaged with the first engaging portion 21123 of a matching moving plate 21121, and each auxiliary sidewall of the auxiliary moving seat 21130 is engaged with the second engaging portion 21124 of a matching moving plate 21121. For example, both moving plates 21121 have a first engaging portion 21123 and a second engaging portion 21124 on their inner side surfaces. The two main body sidewalls of the main moving seat 21110 are engaged with the first engaging portions 21123 of the two moving plates 21121, and the two auxiliary sidewalls of the auxiliary moving seat 21130 are engaged with the second engaging portions 21124 of the two moving plates 21121, respectively.

[0074] In one embodiment, the first snap-fit ​​portion 21123 is configured as a first snap-fit ​​groove, the first snap-fit ​​groove having a groove top wall and a groove bottom wall that are opposite each other along the longitudinal direction of the moving plate 21121, and the first snap-fit ​​groove having two through slots that are opposite each other along the transverse direction of the moving plate 21121, the main moving seat 21110 is snap-fitted into the first snap-fit ​​groove, and the top of the main moving seat 21110 is in limiting contact with the groove top wall of the first snap-fit ​​groove, and the bottom of the main moving seat 21110 is in limiting contact with the groove bottom wall of the first snap-fit ​​groove.

[0075] The second snap-fit ​​portion 21124 is configured as a second snap-fit ​​groove. The second snap-fit ​​groove has a groove top wall and a groove bottom wall that are opposite each other along the longitudinal direction of the moving plate 21121. The second snap-fit ​​groove also has two through slots that are opposite each other along the transverse direction of the moving plate 21121. The auxiliary motion seat 21130 is snap-fitted into the second snap-fit ​​groove. The top of the auxiliary motion seat 21130 is in limiting contact with the groove top wall of the second snap-fit ​​groove, and the bottom of the auxiliary motion seat 21130 is in limiting contact with the groove bottom wall of the second snap-fit ​​groove.

[0076] Therefore, during the movement of the several moving plates 21121 relative to the assembly frame 10000 based on the sliding transmission member 33000, when the several moving plates 21121 move towards the top along the movement trajectory, the top of the main moving seat 21110 and the top wall of the first locking groove will press against each other more tightly. This ensures that the main moving seat 21110 and the moving plates 21121 maintain absolute synchronous movement when moving towards the top. Even when the movement speed is very high, the acceleration is very large, and the force between the two is also very large, the mutual limiting contact between the top of the main moving seat 21110 and the top wall of the first locking groove can still ensure that the main moving seat 21110 and the moving plates 21121 maintain absolute synchronous movement when moving towards the top, thereby providing superior test conditions and meeting the above-mentioned higher test requirements of the CDC damper.

[0077] Similarly, when several moving plates 21121 move towards the top along the movement trajectory, the top of the auxiliary moving seat 21130 and the top wall of the second locking groove will press against each other more tightly, thereby ensuring that the auxiliary moving seat 21130 and the moving plates 21121 maintain absolute synchronous movement when moving towards the top. Even when the movement speed is very high, the acceleration is very large, and the force between the two is also very large, the mutual limiting contact between the top of the auxiliary moving seat 21130 and the top wall of the second locking groove can still ensure that the auxiliary moving seat 21130 and the moving plates 21121 maintain absolute synchronous movement when moving towards the top.

[0078] Similarly, when several moving plates 21121 move towards the bottom along the movement trajectory, the bottom of the main moving seat 21110 and the bottom wall of the first locking groove will press against each other more tightly, thereby ensuring that the main moving seat 21110 and the moving plates 21121 maintain absolute synchronous movement when moving towards the bottom. Even when the movement speed is very high, the acceleration is very large, and the force between the two is also very large, the mutual limiting contact between the bottom of the main moving seat 21110 and the bottom wall of the first locking groove can still ensure that the main moving seat 21110 and the moving plates 21121 maintain absolute synchronous movement when moving towards the bottom.

[0079] Meanwhile, as several moving plates 21121 move towards the bottom along the movement trajectory, the bottom of the auxiliary moving seat 21130 and the bottom wall of the second locking groove will press against each other more tightly, thereby ensuring that the auxiliary moving seat 21130 and the moving plates 21121 maintain absolute synchronous movement when moving towards the bottom. Even when the movement speed is very high, the acceleration is very large, and the force between the two is also very large, the mutual limiting contact between the bottom of the auxiliary moving seat 21130 and the bottom wall of the second locking groove can still ensure that the auxiliary moving seat 21130 and the moving plates 21121 maintain absolute synchronous movement when moving towards the bottom.

[0080] In one embodiment, the motion plate 21121 may include a middle plate 21125, a top plate 21126, and a bottom plate 21127. These three parts constitute the motion plate 21121 and can be integrally formed to constitute the motion plate 21121. The top plate 21126 is connected to the top of the middle plate 21125, and a first engaging portion 21123 is provided on the top plate 21126. The top plate 21126 is configured to connect to the side wall of the main body seat 21110 via the first engaging portion 21123. The bottom plate 21127 is connected to the bottom of the middle plate 21125, and the second snap-fit ​​part 21124 is provided on the bottom plate 21127. The bottom plate 21127 is configured to be connected to the auxiliary seat side wall of the auxiliary motion seat 21130 through the second snap-fit ​​part 21124.

[0081] 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.

[0082] 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 power mechanism, characterized in that, The power mechanism includes: A power source configured for mounting on an assembly frame of a test bench, the assembly frame being configured to define a motion trajectory, the motion trajectory being a straight line trajectory; A motion assembly includes a motion base and an output component. A power source drives the motion base to reciprocate relative to the assembly frame along the motion trajectory at a preset speed. The output component is mounted on the motion base and is configured to connect to a damper. The motion base has at least one guide hole, and a floating bushing is mounted in each guide hole. The guide hole is configured to movably assemble a guide mechanism through the floating bushing.

2. The power mechanism according to claim 1, characterized in that, The motion base includes: The main motion seat has at least two main motion seat sidewalls facing different directions, and a plurality of the main motion seat sidewalls are arranged around the circumference of the main motion seat. The top wall of the main motion seat is provided with an output mounting position, and the output component is assembled into the output mounting position of the main motion seat. The main motion seat is configured to open the guide hole. The combined motion plate includes at least two motion plate components, the number of which is the same as the number of main body sidewalls of the main motion seat. Each motion plate component is assembled and connected to a matching main body sidewall of the main motion seat, and the plane of each motion plate component is parallel to the motion trajectory. The power source is driven and cooperates with at least one of the main motion seat and the combined motion plate to drive the main motion seat to reciprocate relative to the assembly frame along the motion trajectory at a preset motion speed.

3. The power mechanism according to claim 2, characterized in that, The motion base also includes: The sliding transmission members, the number of which is the same as the number of the moving plates, each sliding transmission member includes a connecting part and a sliding part that are connected to each other. Each sliding transmission member is fixedly connected to a matching moving plate based on its connecting part, and each sliding transmission member is configured to be movably assembled to the assembly frame of the test bench through its sliding part. Each moving plate is connected to a matching sliding transmission member.

4. The power mechanism according to claim 3, characterized in that, The connecting part of the sliding transmission member is configured as a straight column. The outer side of the moving plate is provided with a positioning groove. The positioning groove is a straight groove along the longitudinal direction of the moving plate. The positioning groove has a top wall and two side walls connecting the top wall. The top wall of the positioning groove is located at the top of the positioning groove. The bottom of the positioning groove has a through slot. The connecting part of the sliding transmission member is configured to be assembled in the positioning groove along the longitudinal direction of the moving plate. The top of the connecting part is mutually limited and abuts against the top wall of the positioning groove.

5. The power mechanism according to claim 2, characterized in that, The motion base also includes: An auxiliary motion seat has at least two auxiliary seat sidewalls facing different directions, and a plurality of the auxiliary seat sidewalls are arranged around the circumference of the main motion seat, wherein each of the auxiliary seat sidewalls is parallel to and in the same plane with a matching main seat sidewall of the main motion seat; Each of the moving plates has a first snap-fit ​​part and a second snap-fit ​​part on its inner side surface. Each side wall of the main moving seat is snap-fitted to a first snap-fit ​​part of a matching moving plate. Each side wall of the auxiliary moving seat is snap-fitted to a second snap-fit ​​part of a matching moving plate. The guide hole is provided in at least one of the main motion seat and the auxiliary motion seat.

6. The power mechanism according to claim 5, characterized in that, The first snap-fit ​​portion is configured as a first snap-fit ​​groove, the first snap-fit ​​groove having a groove top wall and a groove bottom wall that are opposite each other along the longitudinal direction of the moving plate, and the first snap-fit ​​groove having two through slots that are opposite each other along the transverse direction of the moving plate, the main moving seat being snap-fitted into the first snap-fit ​​groove, and the top of the main moving seat being in limiting contact with the groove top wall of the first snap-fit ​​groove, and the bottom of the main moving seat being in limiting contact with the groove bottom wall of the first snap-fit ​​groove.

7. The power mechanism according to claim 5, characterized in that, The second snap-fit ​​portion is configured as a second snap-fit ​​groove, the second snap-fit ​​groove having a groove top wall and a groove bottom wall that are opposite each other along the longitudinal direction of the moving plate, and the second snap-fit ​​groove having two through slots that are opposite each other along the transverse direction of the moving plate, the auxiliary moving seat being snap-fitted into the second snap-fit ​​groove, and the top of the auxiliary moving seat being in limiting contact with the groove top wall of the second snap-fit ​​groove, and the bottom of the auxiliary moving seat being in limiting contact with the groove bottom wall of the second snap-fit ​​groove.

8. The power mechanism according to claim 5, characterized in that, The moving plate includes: Intermediate plate; A top plate is connected to the top of the middle plate. A first snap-fit ​​portion is disposed on the top plate. The top plate is configured to be connected to the side wall of the main body seat of the main body moving seat via the first snap-fit ​​portion. A bottom plate is connected to the bottom of the middle plate, and a second snap-fit ​​portion is disposed on the bottom plate. The bottom plate is configured to be connected to the auxiliary seat sidewall of the auxiliary motion seat via the second snap-fit ​​portion.

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; The power mechanism as described in any one of claims 1-8 is assembled to the assembly frame; A guiding mechanism is mounted on the assembly frame. The motion component is movably mounted to the guiding mechanism through the guide hole and the floating bushing. The guiding mechanism is configured to form a guide trajectory, which is a straight trajectory and is parallel to the motion trajectory. The motion component is configured to move relative to the guiding mechanism along the guide trajectory. A balancing mechanism is assembled to the assembly frame, and at least one of the guiding mechanism and the power 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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