Chassis structure of a six-degree-of-freedom platform
Patent Information
- Application Number
- CN202520924607.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-05-12
AI Technical Summary
[0002]六自由度平台是一种能够在三维空间中实现任意位置和姿态调整的机械装置，广泛应用于虚拟现实、飞行模拟、机器人技术等领域，六自由度平台配备六个独立的执行机构(如电动机或液压缸)，通过调节这些执行机构的伸缩或旋转，实现平台的六个自由度(前后、左右、上下、俯仰、横滚、偏航)，而底盘作为平台的基础部分，承担着支撑、稳定和负载传递的关键作用，底盘的设计通常采用高强度材料(如铝合金或钢)，确保其具备足够的刚性和稳定性，以支撑上部结构和负载，在结构方面，现阶段的底盘结构一般由底板、支撑腿和连接结构等组成，若干个支撑腿股固定在底板的底端，且干个支撑腿主要分布在底板的边缘位置，而边缘支撑腿的设计虽然可以有效承载底板的边缘负载，但在底板的中心区域，尤其是在支撑腿之间的区域，会出现支撑力不足的现象，且当平台在动态状态下运动时，尤其是在快速移动或改变方向时，支撑腿所承受的力也会发生变化，进一步导致某些区域的支撑力不足
[0010]与现有技术相比，本实用新型的有益效果是：该六自由度平台的底盘结构通过设置有六角底盘、三角中台、带盘支撑腿和摆臂式二级加力结构等相互配合的结构，六角底盘的底端中心位置通过三角中台安装带盘支撑腿，且利用摆臂式二级加力结构对六角底盘进行二次支撑，从而在六角底盘边缘位置形成支撑力，其中采用三角中台安装带盘支撑腿的设计，能够有效地将支撑腿的力传递至整个地面，而三角中台在支撑腿、六角底盘之间形成更为均匀的力分布，从而减少六角底盘在受力时的变形，增强了整体的稳定性；其次通过摆臂式二级加力结构的引入，可以进一步增强底盘结构的抗扭转能力，当平台受到外力作用时，摆臂式二级加力结构有效地分散和传递这些作用力，减少底盘因受力不均而导致的扭转变形，并且摆臂式二级加力结构也将底盘中部负载分散到多个边缘支撑点上，避免单一支撑腿承受过大的负载而导致的失效风险，以此确保平台在快速运动时仍能保持良好的稳定性。
Smart Images
Figure CN224809487U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of platform chassis technology, specifically the chassis structure of a six-degree-of-freedom platform. Background Technology
[0002] A six-degree-of-freedom (6DOF) platform is a mechanical device capable of adjusting its position and attitude in three-dimensional space. It is widely used in virtual reality, flight simulation, robotics, and other fields. A 6DOF platform is equipped with six independent actuators (such as electric motors or hydraulic cylinders). By adjusting the extension or rotation of these actuators, the platform achieves its six degrees of freedom (forward, backward, left, right, up, down, pitch, roll, and yaw). The chassis, as the foundation of the platform, plays a crucial role in support, stability, and load transfer. The chassis is typically designed using high-strength materials (such as aluminum alloys or steel) to ensure sufficient rigidity and stability. Qualitatively, to support the superstructure and load, the current chassis structure generally consists of a base plate, support legs, and connecting structures. Several support legs are fixed to the bottom of the base plate, and these support legs are mainly distributed at the edges of the base plate. While the edge support leg design can effectively bear the edge load of the base plate, insufficient support occurs in the central area of the base plate, especially in the area between the support legs. Furthermore, when the platform moves dynamically, especially during rapid movement or changes in direction, the force on the support legs also changes, further leading to insufficient support in certain areas. Utility Model Content
[0003] The purpose of this invention is to provide a chassis structure for a six-degree-of-freedom platform. The bottom center of the hexagonal chassis is equipped with a disc-mounted support leg via a triangular platform, and a swing-arm type two-stage force-adding structure is used to provide secondary support for the hexagonal chassis, thereby forming a supporting force at the edge of the hexagonal chassis to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a chassis structure for a six-degree-of-freedom platform, including a hexagonal chassis, a triangular central platform welded and installed at the center of the bottom end of the hexagonal chassis, and a support leg with a disc welded and installed at the corner of the bottom end of the triangular central platform. A swing-arm type two-stage force-adding structure that can be adjusted downwards is installed at the corner of the top of the hexagonal chassis. A notch is provided at the corner of the hexagonal chassis for the swing-arm type two-stage force-adding structure to adjust its sway.
[0005] Preferably, the disc-supported legs are provided in three parts, and the three disc-supported legs are symmetrical about the vertical center reference plane of the triangular platform.
[0006] Preferably, the disc-supported leg, the triangular central platform, and the hexagonal chassis are all made of alloy steel components.
[0007] Preferably, the width of the notch is 15cm to 20cm.
[0008] Preferably, the swing arm type two-stage force-adding structure includes a right-angle seat bolted to the top corner of the hexagonal chassis, a rotating shaft rotatably mounted inside the right-angle seat, a column head fixed at one end of the rotating shaft, and a hollow straight arm fixed on the outer wall of one side of the column head, wherein a support foot is hinged to the end of the hollow straight arm away from the column head.
[0009] Preferably, the bottom of the support foot is provided with a through hole that extends completely through it.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: The chassis structure of this six-degree-of-freedom platform is composed of a hexagonal chassis, a triangular central platform, disc-mounted support legs, and a swing-arm type two-stage force-adding structure that work together. The disc-mounted support legs are installed at the center of the bottom of the hexagonal chassis via the triangular central platform, and the swing-arm type two-stage force-adding structure provides secondary support for the hexagonal chassis, thereby forming a supporting force at the edge of the hexagonal chassis. The design of installing the disc-mounted support legs on the triangular central platform can effectively transfer the force of the support legs to the entire ground, and the triangular central platform forms a more uniform force between the support legs and the hexagonal chassis. The uniform force distribution reduces the deformation of the hexagonal chassis under stress, enhancing overall stability. Secondly, the introduction of the swing-arm two-stage load-bearing structure further enhances the chassis structure's torsional resistance. When the platform is subjected to external forces, the swing-arm two-stage load-bearing structure effectively disperses and transmits these forces, reducing torsional deformation of the chassis caused by uneven stress. Furthermore, the swing-arm two-stage load-bearing structure also distributes the load in the middle of the chassis to multiple edge support points, avoiding the risk of failure caused by excessive load on a single support leg. This ensures that the platform maintains good stability during rapid movement. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0012] Figure 2 This is a side view of the structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0015] Figure 5 This is a three-dimensional cross-sectional structural diagram of the present invention.
[0016] In the diagram: 1. Support leg with disc; 2. Triangular central platform; 3. Hexagonal chassis; 4. Swing arm type two-stage force-adding structure; 401. Right angle seat; 402. Rotating shaft; 403. Column head; 404. Hollow straight arm; 405. Support foot; 406. Through hole; 5. Notch. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0018] Please see Figure 1-5 The present invention provides an embodiment of a six-degree-of-freedom platform chassis structure, including a hexagonal chassis 3, a triangular central platform 2 welded and installed at the center of the bottom end of the hexagonal chassis 3, and a plate-supported leg 1 welded and installed at the corner of the bottom end of the triangular central platform 2. The triangular central platform 2, as the core component connecting the hexagonal chassis 3 and the plate-supported leg 1, can effectively transmit and distribute the load and enhance the overall load-bearing capacity of the platform.
[0019] The hexagonal chassis 3 exhibits superior torsional resistance, effectively resisting the influence of external torque and distributing the load evenly when under stress.
[0020] The hexagonal chassis 3 is equipped with a swing arm type two-stage force-adding structure 4 that can be adjusted downwards at the top corners. The hexagonal chassis 3 is provided with a notch 5 for the swing arm type two-stage force-adding structure 4 to be tilted and adjusted at the corners.
[0021] The disc-shaped support leg 1 is provided with three disc-shaped support legs 1. The three disc-shaped support legs 1 are symmetrical about the vertical center reference plane of the triangular platform 2. The disc-shaped bottom of the disc-shaped support leg 1 can increase the contact area with the ground, thereby improving the overall stability. The disc-shaped support leg 1, the triangular platform 2, and the hexagonal base 3 are all made of alloy steel components. The width of the notch 5 is 15cm to 30cm. Alloy steel has high tensile strength and yield strength and can withstand large loads and impacts.
[0022] The swing-arm type two-stage force-adding structure 4 includes a right-angle seat 401 bolted to the top corner of the hexagonal chassis 3, a rotating shaft 402 rotatably mounted inside the right-angle seat 401, a column head 403 fixed at one end of the rotating shaft 402, and a hollow straight arm 404 fixed on the outer wall of one side of the column head 403. Since the column head 403 and the right-angle seat 401 are rotatably connected through the rotating shaft 402, the user can adjust the angle and position of the hollow straight arm 404 according to actual needs, allowing it to move freely within a certain range. When multiple swing-arm type two-stage force-adding structures 4 are used together, they can effectively distribute and transmit the load from the center position of the hexagonal chassis 3.
[0023] The hollow straight arm 404 is hinged to a support foot 405 at the end away from the column head 403, and the bottom of the support foot 405 is provided with a through hole 406 that is completely through.
[0024] When installing the swing arm type two-stage force-adding structure 4 and the hexagonal chassis 3, the right-angle seat 401 is bolted to the top of the hexagonal chassis 3, and the hollow straight arm 404 passes through the notch 5, while the support foot 405 is in contact with the ground. In order to ensure that the support foot 405 is stably connected to the ground, bolts and through holes 406 can be used to fix the support foot 405 to the ground.
[0025] In this embodiment, during use, first check whether the upper and lower surfaces of the hexagonal chassis 3 are smooth and free of obvious scratches or deformation. Then, remove the triangular platform 2 and weld it to the center of the bottom of the hexagonal chassis 3 to ensure that it will not shift under load. Next, place the disc-supported leg 1 at the corner of the bottom of the triangular platform 2 and weld the mating surfaces of the disc-supported leg 1 and the triangular platform 2. During this process, it is necessary to ensure that the welding angle of the disc-supported leg 1 is correct to prevent the platform and hexagonal chassis 3 from tilting. Finally, bolt the swing-arm type two-stage force-adding structure 4 to the hexagonal chassis. At the top of 3, adjust the angle of the swing-arm type two-stage force-adding structure 4 to ensure that the swing-arm type two-stage force-adding structure 4 can distribute the platform load and remain stable when under force; after all components are installed, check the tightness of all connection points to ensure that there are no loose parts, especially the connection between the disc support leg 1 and the triangular central platform 2 and the hexagonal chassis 3, and make sure the connection is firm; before actual use, conduct a load test, and observe the stability of the chassis structure and the stress on each component by gradually applying the load to ensure that the platform remains stable under the maximum load and there is no obvious deformation or tilting.
Claims
1. The chassis structure of a six-degree-of-freedom platform, characterized in that: It includes a hexagonal chassis (3), a triangular platform (2) welded and installed at the center of the bottom of the hexagonal chassis (3), and a support leg (1) with a disc welded and installed at the corner of the bottom of the triangular platform (2). A swing arm type two-stage force-adding structure (4) that can be adjusted downward is installed at the corner of the top of the hexagonal chassis (3). A notch (5) is provided at the corner of the hexagonal chassis (3) for the swing arm type two-stage force-adding structure (4) to adjust the swing.
2. The chassis structure of the six-degree-of-freedom platform according to claim 1, characterized in that: The disc-supported leg (1) is provided in three parts, and the three disc-supported legs (1) are symmetrical about the vertical center reference plane of the triangular platform (2).
3. The chassis structure of the six-degree-of-freedom platform according to claim 2, characterized in that: The disc-supported leg (1), the triangular central platform (2), and the hexagonal chassis (3) are all made of alloy steel components.
4. The chassis structure of the six-degree-of-freedom platform according to claim 1, characterized in that: The width of the notch (5) is 15cm to 30cm.
5. The chassis structure of the six-degree-of-freedom platform according to claim 1, characterized in that: The swing arm type two-stage force-adding structure (4) includes a right-angle seat (401) bolted to the top corner of the hexagonal chassis (3), a rotating shaft (402) rotatably installed inside the right-angle seat (401), a column head (403) fixed at one end of the rotating shaft (402), and a hollow straight arm (404) fixed on the outer wall of one side of the column head (403). The hollow straight arm (404) is hinged to a support foot (405) at the end away from the column head (403).
6. The chassis structure of the six-degree-of-freedom platform according to claim 5, characterized in that: The bottom of the support foot (405) is provided with a through hole (406) that is completely through.