Auxiliary supporting device of horizontal type six-degree-of-freedom test platform
The auxiliary support device addresses gravity-induced deviations in six-degree-of-freedom test platforms by providing anti-gravity support and maintaining accurate orientation through a sliding plate and height adjustment mechanism, improving experimental precision.
Patent Information
- Application Number
- CN202420833250.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-19
AI Technical Summary
The active end of a six-degree-of-freedom test platform is significantly affected by gravity during experiments under complex boundary conditions, leading to deviations in experimental results.
An auxiliary support device with a support mechanism and connecting mechanism, including a sliding plate, height adjustment portion, and elastic units, which follows the movement of the test platform to provide anti-gravity support and maintain accurate orientation.
The auxiliary support device stabilizes the active end of the test platform, reducing gravity-induced deviations and enhancing experimental accuracy by ensuring consistent contact and alignment with the test platform.
Smart Images
Figure CN222267203U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge construction, in particular to an auxiliary supporting device of a horizontal six-degree-of-freedom test platform. Background Art
[0002] The tower-beam damper is an important device that can reduce the vibration amplitude in the building structure. In the field of bridge construction, the tower-beam damper is generally installed horizontally between the main beam and the main tower to reduce the vibration amplitude between the main beam and the main tower, thereby playing a role in protecting the bridge.
[0003] In the real force simulation experiment of the tower-beam damper, the force performance of the tower-beam damper under complex boundary conditions such as tension, compression, bending, shear and torsion is generally obtained by observing the movement of the active end of the tower-beam damper in the six-degree-of-freedom test platform. However, the active end in the six-degree-of-freedom test platform itself is greatly affected by gravity and will also deviate downward in a static state, making it impossible to accurately load the real force conditions between the components. Utility Model Content
[0004] The present application provides an auxiliary support device for a horizontal six-degree-of-freedom test platform, which can solve the technical problem in the prior art that when testing the stress performance of bridge components under complex boundary conditions such as tension, compression, bending, shear and torsion, the active end of the six-degree-of-freedom test platform is greatly affected by gravity, resulting in deviations in the experimental results.
[0005] The embodiment of the present application provides an auxiliary support device for a horizontal six-degree-of-freedom test platform, comprising:
[0006] A support mechanism, the support mechanism comprising a substrate support and a sliding plate arranged above the substrate support and capable of sliding horizontally on the substrate support, a first sliding guide rail perpendicular to the sliding direction of the sliding plate is arranged on the surface of the sliding plate, and a height adjustment portion for adjusting its own height and tilt angle along with the movement direction of the active end of the six-degree-of-freedom test platform is arranged above the first sliding guide rail;
[0007] A connecting mechanism includes a connecting portion arranged on the top of the height adjustment portion for connecting to the movable end of the six-degree-of-freedom test platform.
[0008] In one embodiment, a second sliding guide rail is disposed on the upper surface of the substrate support.
[0009] In one embodiment, a second sliding block is disposed in the second sliding guide rail, and a top of the second sliding block is connected to a bottom of the sliding plate.
[0010] In one embodiment, a first sliding block is disposed in the first sliding guide rail, and a top of the first sliding block is connected to a bottom of the height adjustment portion.
[0011] In one embodiment, the height adjustment portion includes an adjustment base plate connected to the top of the first sliding block.
[0012] In one embodiment, a plurality of elastic units are arranged on the adjusting base plate.
[0013] In one embodiment, the top of the elastic unit is connected to the bottom of the connecting portion.
[0014] In one embodiment, the connecting portion includes a connecting bottom plate fixedly connected to the top of the elastic unit and a connecting piece located on the connecting bottom plate.
[0015] In one embodiment, the connecting member includes a vertical connecting plate vertically arranged on the connecting base plate and a reaction force unit located on a side of the vertical connecting plate away from the six-degree-of-freedom test platform.
[0016] In one embodiment, the vertical connecting plate is provided with a connecting unit for detachably connecting to a movable end of a six-degree-of-freedom test platform.
[0017] The beneficial effects brought by the technical solution provided by the embodiments of the present application include:
[0018] In the auxiliary support device of the horizontal six-degree-of-freedom test platform provided by itself, the base support is placed on the ground and used in conjunction with the connecting part, which can be connected and provide an anti-gravity support to the active end of the six-degree-of-freedom test platform to prevent the active end of the six-degree-of-freedom test platform from falling due to gravity in a static state, causing errors in the experimental results. The sliding plate and the first sliding guide rail can ensure the different sliding directions of the auxiliary support device in this application. In conjunction with the height adjustment part, the auxiliary support device in this application can always follow the movement direction of the active end of the six-degree-of-freedom test platform to adjust its own orientation and height, thereby further improving the accuracy of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0020] Figure 1 A schematic diagram of the structure of an auxiliary support device for a horizontal six-degree-of-freedom test platform provided in an embodiment of the present application;
[0021] Figure 2 A front view of an auxiliary support device of a horizontal six-degree-of-freedom test platform provided in an embodiment of the present application;
[0022] Figure 3 A side view of an auxiliary support device for a horizontal six-degree-of-freedom test platform provided in an embodiment of the present application.
[0023] In the figure: 1, base support; 101, second sliding guide rail; 102, second slider; 2, sliding plate; 201, first sliding guide rail; 202, first slider; 3, height adjustment part; 301, adjustment bottom plate; 302, elastic unit; 4, connecting part; 401, connecting bottom plate; 402, vertical connecting plate; 403, reaction force unit; 404, connecting unit; 405, bottom support. DETAILED DESCRIPTION
[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0025] An embodiment of the present application provides an auxiliary support device for a horizontal six-degree-of-freedom test platform, which can solve the technical problem in the prior art that, during a real force simulation experiment, the active end of the six-degree-of-freedom test platform is affected by gravity, resulting in deviations in the experimental results.
[0026] Figure 1 is a schematic diagram of the structure of an auxiliary support device of a horizontal six-degree-of-freedom test platform provided in an embodiment of the present application, such as Figure 1 As shown, the auxiliary support device structure of the horizontal six-degree-of-freedom test platform in the present application includes a supporting mechanism and a connecting mechanism. The six-degree-of-freedom test platform generally includes a fixed end and a movable end. The supporting mechanism is mainly used to connect with the ground, and change its own height and tilt angle following the normal movement of the movable end of the six-degree-of-freedom test platform, so as to always keep the auxiliary support device in the present application in contact with the six-degree-of-freedom test platform. The connecting mechanism is mainly used to stably connect the auxiliary support device in the present application with the movable end of the six-degree-of-freedom test platform.
[0027] The supporting mechanism includes a base support 1 and a sliding plate 2 which is arranged above the base support 1 and can slide horizontally on the base support 1. A first sliding guide rail 201 which is perpendicular to the sliding direction of the sliding plate 2 is arranged on the surface of the sliding plate 2. A height adjustment part 3 which is used to adjust its own height and inclination angle along the movement direction of the active end of the six-degree-of-freedom test platform is arranged above the first sliding guide rail 201; the connecting mechanism includes a connecting part 4 which is arranged on the top of the height adjustment part 3 for connecting with the active end of the six-degree-of-freedom test platform.
[0028] When using the auxiliary support device in the present application, first place the support mechanism in the auxiliary support device in the present application on the ground or a carrier to ensure the stable placement of the auxiliary support device body, and then connect the connecting mechanism to the movable end of the six-degree-of-freedom test platform. When the movable end of the six-degree-of-freedom test platform begins to displace due to the force between the structures, the support mechanism remains stationary, and the sliding plate 2 and the height adjustment part 3 adjust their own orientation according to the horizontal torsion of the movable end of the six-degree-of-freedom test platform. At the same time, the height adjustment part 3 can also adjust its own height and inclination angle with the longitudinal movement of the movable end of the six-degree-of-freedom test platform, and provide the six-degree-of-freedom test platform with a certain anti-gravity support.
[0029] Furthermore, Figure 2 A front view of an auxiliary support device for a horizontal six-degree-of-freedom test platform provided in an embodiment of the present application, wherein a second sliding guide rail 101 is provided on the upper surface of the base support 1, a second slider 102 is provided in the second sliding guide rail 101, and the top of the second slider 102 is connected to the bottom of the sliding plate 2. A first slider 202 is provided in the first sliding guide rail 201, and the top of the first slider 202 is connected to the bottom of the height adjustment part 3. The horizontal directions of the first sliding guide rail 201 and the second sliding guide rail 101 are arranged perpendicular to each other and do not affect each other. Through the arrangement of the first slider 202 and the second slider 102, the sliding plate 2 can move horizontally on the base support 1, and the height adjustment part 3 can move horizontally on the sliding plate 2 perpendicular to the movement direction of the sliding plate 2, thereby ensuring at least four horizontal movement directions of the auxiliary support device in the present application. The sliding guide rail and the slider are commonly used components in the prior art, including various forms, and there is no specific limitation in the present application, and no further elaboration is given here.
[0030] Based on the activity direction of the six-degree-of-freedom test platform, in this application, the number of sliding plates 2 can be appropriately increased. When the number of sliding plates 2 is one, the first sliding guide rail 201 and the second sliding guide rail 101 are perpendicular to each other. When the number of sliding plates 2 is multiple, the sliding guide rails on the multiple sliding plates 2 can be inclined to each other, that is, a certain angle is formed between the multiple sliding guide rails in a top-down perspective. Similarly, although the more sliding plates 2 there are, the higher the degree of freedom of the auxiliary support device in this application, the height of the auxiliary support device will also increase accordingly, which may cause the overall stability of the support device body to decrease. Therefore, the actual number of sliding plates 2 set is determined according to usage requirements.
[0031] Furthermore, for a smaller six-degree-of-freedom test platform, the single first sliding guide rail 201 and the second sliding guide rail 101 respectively arranged on the base support 1 and the sliding plate 2 can meet the basic horizontal sliding requirements. However, for a large six-degree-of-freedom test platform that is heavy in itself, a single sliding guide rail is relatively weak and has limited force-bearing capacity, and may not be able to guide and slide stably. Therefore, in one embodiment of the present application, the number of the first sliding guide rail 201 and the second sliding guide rail 101 are both two, and the two first sliding guide rails 201 are arranged parallel to each other, and the two second sliding guide rails 101 are arranged parallel to each other. At this time, the number of the first slider 202 and the second slider 102 also needs to be increased accordingly.
[0032] Furthermore, the height adjustment part 3 includes an adjustment base plate 301 connected to the top of the first slider 202, and a plurality of elastic units 302 are arranged on the adjustment base plate 301. The top of the elastic unit 302 is connected to the bottom of the connecting part 4. In one embodiment of the present application, four elastic units 302 are arranged on the upper surface of the adjustment base plate 301, and the four elastic units 302 are respectively arranged at the four corners of the adjustment base plate 301. The movable end of the six-degree-of-freedom test platform will float up and down when subjected to longitudinal force. At this time, the elastic unit 302 adjusts its own height and tilt angle following the longitudinal movement of the movable end in the six-degree-of-freedom test platform, so that the connecting part 4 always follows the movable end of the six-degree-of-freedom test platform. In one embodiment of the application, the elastic member is a nitrogen cylinder, and the expansion and contraction amount of the nitrogen cylinder can be freely changed according to the movement amount of the movable end in the six-degree-of-freedom test platform. At the same time, the compression amount of each nitrogen cylinder can be different to adapt to the turning angle requirements of different tilt angles of the movable end in the six-degree-of-freedom test platform.
[0033] Furthermore, Figure 3 A side view of an auxiliary support device for a horizontal six-degree-of-freedom test platform provided in an embodiment of the present application, wherein the top of the elastic unit 302 is connected to the bottom of the connecting part 4, and the elastic unit 302 drives the connecting part 4 to perform longitudinal movement along with the movable end in the six-degree-of-freedom test platform. The connecting part 4 includes a connecting base plate 401 fixedly connected to the top of the elastic unit 302 and a connecting member located on the connecting base plate 401, the connecting member includes a vertical connecting plate 402 vertically arranged on the connecting base plate 401 and a reaction force unit 403 located on the side of the vertical connecting plate 402 away from the six-degree-of-freedom test platform, the connecting base plate 401 is horizontally arranged to directly receive the longitudinal force of the elastic unit 302, the vertical connecting plate 402 is vertically arranged at the center point of the vertical connecting plate 402, and the vertical connecting plate 402 is arranged parallel to the plane of the movable end in the six-degree-of-freedom test platform to ensure that the force on the connecting part 4 is uniform, and the reaction force unit 403 is arranged on the side of the vertical connecting plate 402 away from the six-degree-of-freedom test platform.
[0034] In most cases, the six-degree-of-freedom test platform will apply a thrust to the vertical connecting plate 402 toward the reaction unit 403. Therefore, the reaction unit 403 in the present application can not only serve as a support member for the vertical connecting plate 402, but also as a reaction member for the auxiliary support device as a whole in the present application to prevent the vertical connecting plate 402 from tilting or collapsing due to long-term stress. In the embodiment of the present application, the reaction unit 403 can be set in the form of a reaction seat, or it can be a plurality of support ribs arranged along the width direction of the vertical connecting plate 402, one side of the support rib is parallel to the vertical connecting plate 402 and fixedly connected, the bottom side of the support rib is fixedly connected to the connecting bottom plate 401, and a plurality of support ribs are arranged equidistantly.
[0035] Furthermore, a connecting unit 404 for detachably connecting to the movable end of the six-degree-of-freedom test platform is provided on the vertical connecting plate 402. The connecting unit 404 is in direct contact with the movable end of the six-degree-of-freedom test platform and realizes a detachable connection. In the implementation manner of the present application, the setting manner of the connecting unit 404 includes but is not limited to the following manner: the connecting unit 404 is a plurality of connecting screw holes provided on the vertical connecting plate 402 and penetrating the vertical connecting plate 402, so as to facilitate the bolt connection of the connecting unit 404 with the movable end of the six-degree-of-freedom test platform, or the connecting unit 404 is a snap-fitting part provided on the vertical connecting plate 402 to fit the contour of the movable end of the six-degree-of-freedom test platform to realize a snap-fit connection, etc. In the present application, the connecting unit 404 can realize a stable and detachable connection between the connecting part 4 and the movable end of the six-degree-of-freedom test platform, and there is no specific restriction on its specific setting manner.
[0036] Furthermore, in one embodiment of the present application, a bottom support member 405 is provided on one side of the vertical connecting plate 402 close to the six-degree-of-freedom test platform, and the bottom support member 405 is also used to support the vertical connecting plate 402 to prevent the vertical connecting plate 402 from becoming unstable when subjected to force. However, the height of the bottom support member 405 needs to be lower than the connection position of the active end of the six-degree-of-freedom test platform to prevent obstruction to the normal connection between the vertical connecting plate 402 and the active end of the six-degree-of-freedom test platform.
[0037] The auxiliary support device of the horizontal six-degree-of-freedom test platform in the present application has a simple structure, can help support the active end of the six-degree-of-freedom test platform, help the active end of the six-degree-of-freedom test platform to offset gravity, reduce the gravity drop deviation of the active end of the six-degree-of-freedom test platform, and improve the accuracy of the experimental results. It has a simple structure and can be reused, which is convenient for later maintenance and replacement.
[0038] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0039] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0040] The above is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.
Claims
1. An auxiliary support device for a horizontal six-degree-of-freedom test platform, characterized in that: include: A support mechanism, the support mechanism comprising a base support (1) and a sliding plate (2) arranged above the base support (1) and capable of sliding horizontally on the base support (1), a first sliding guide rail (201) perpendicular to the sliding direction of the sliding plate (2) being arranged on the surface of the sliding plate (2), and a height adjustment portion (3) for adjusting its own height and tilt angle according to the movement direction of the active end of the six-degree-of-freedom test platform being arranged above the first sliding guide rail (201); A connecting mechanism comprises a connecting portion (4) arranged on the top of the height adjustment portion (3) for connecting to a movable end of a six-degree-of-freedom test platform.
2. The auxiliary support device of a horizontal six-degree-of-freedom test platform according to claim 1, characterized in that: The upper surface of the base support (1) is provided with a second sliding guide rail (101).
3. The auxiliary support device of a horizontal six-degree-of-freedom test platform according to claim 2, characterized in that: A second sliding block (102) is arranged inside the second sliding guide rail (101), and the top of the second sliding block (102) is connected to the bottom of the sliding plate (2).
4. The auxiliary support device of a horizontal six-degree-of-freedom test platform according to claim 1, characterized in that: A first sliding block (202) is arranged inside the first sliding guide rail (201), and the top of the first sliding block (202) is connected to the bottom of the height adjustment part (3).
5. The auxiliary support device of a horizontal six-degree-of-freedom test platform according to claim 4, characterized in that: The height adjustment portion (3) comprises an adjustment base plate (301) connected to the top of the first sliding block (202).
6. The auxiliary support device of a horizontal six-degree-of-freedom test platform according to claim 5, characterized in that: A plurality of elastic units (302) are arranged on the adjusting bottom plate (301).
7. The auxiliary support device of a horizontal six-degree-of-freedom test platform according to claim 6, characterized in that: The top of the elastic unit (302) is connected to the bottom of the connecting portion (4).
8. The auxiliary support device of a horizontal six-degree-of-freedom test platform according to claim 7, characterized in that: The connecting portion (4) comprises a connecting bottom plate (401) fixedly connected to the top of the elastic unit (302) and a connecting piece located on the connecting bottom plate (401).
9. The auxiliary support device of a horizontal six-degree-of-freedom test platform according to claim 8, characterized in that: The connecting member comprises a vertical connecting plate (402) vertically arranged on the connecting bottom plate (401) and a reaction force unit (403) located on a side of the vertical connecting plate (402) away from the six-degree-of-freedom test platform.
10. The auxiliary support device of a horizontal six-degree-of-freedom test platform according to claim 9, characterized in that: The vertical connection plate (402) is provided with a connection unit (404) for detachably connecting to a movable end of a six-degree-of-freedom test platform.