An expandable triangular prism space truss unit structure

Abstract

The application discloses an extensible three-prism space truss unit structure for space truss erection, which is composed of a truss beam, an octagonal joint frame, a rod group A, a rod group B, a locking nut and the like, the truss beam comprises a sliding block, a spring, a spring seat, a spring seat fixing pin, the octagonal joint frame comprises a right-angle joint, a 45-degree joint and a joint magnet, and the rod group comprises a rod group main body and a magnet. The application provides a certain method for the erection of a space structure, considers the installation problems of the load on the truss, and meanwhile, the truss unit can be extended to a corresponding degree according to actual conditions, so that different requirements can be met.

Description

Technical Field

[0001] This invention relates to the field of space trusses, and more specifically to an expandable triangular prism space truss unit structure. Technical Background

[0002] With the continuous maturation of future aerospace technologies and the exploration of space resources, large-scale truss-type space structures are a future development trend. For example, large-scale solar arrays, large experimental payload platforms, and large space mirrors all rely on space truss structures. As the skeleton of large-scale space facilities, space trusses must possess characteristics such as high strength, convenient installation, good stability, and scalability. For the on-orbit construction of large-area space trusses, robotic arm-assisted installation is the mainstream trend. Triangular prism space truss unit structures possess the aforementioned advantages, while also facilitating robotic arm-assisted installation and promoting expansion and docking between trusses. Summary of the Invention

[0003] The purpose of this invention is to provide an expandable triangular prism space truss unit structure for space truss assembly.

[0004] The basic technical solution of this invention: This invention discloses an expandable spatial truss unit structure, including a truss beam, an octagonal joint frame, rod group A, rod group B, and a locking nut. The truss beam includes a slider, a spring, a spring seat, and a spring seat fixing pin. A groove is milled on the upper part of the beam, and the lower surface is machined into two symmetrical sides with an included angle of 60°. The two ends of the beam are divided into an active docking beam and a passive docking beam. The slider, spring, spring seat, and spring seat fixing pin are all installed at the active docking beam end. The octagonal joint frame includes a right-angle joint, a 45° joint, and a joint magnet. Rod group A includes a rod group body and a rod group magnet. Rod group B includes a rod group body and a rod group magnet. The passive docking end of the truss beam is installed on the octagonal joint frame. When the truss is assembled, the active end of the truss beam docks with the passive end of another truss beam. Rod groups A and B are connected to the octagonal joint through locking nuts.

[0005] Furthermore, in the docking of the active docking end and the passive docking end of the truss beam, two pairs of sliders are integrated with the spring and spring seat, inserted through the hole of the active docking beam, and then the spring seat fixing pin is screwed in from the hole at the end of the active docking beam to fix the position of the spring seat and prevent the spring seat from rotating axially and moving horizontally. During the process of inserting the active docking beam into the octagonal joint frame, the slider is first compressed along with the spring, and when it reaches the corresponding hole, the slider pops out and locks in place.

[0006] Furthermore, the truss beam trapezoidal groove structure is similar to the milling machine loading platform structure, and with the help of a dedicated space load fixture, it can effectively fix various space loads.

[0007] Furthermore, the truss beam has a length of 3 meters, member group A has a length of 0.85 meters, member group B has a length of 1.26 meters, and the three members of member group A are connected to the three truss beams through octagonal joints and straight joints to form an equilateral triangle. The length of member group A after connecting with the octagonal joints and straight joints is 1 meter. The length of each segment of the truss beam after being divided into three equal parts is 1 meter. The length of member group B after connecting with the octagonal joints and 45° joints is... The three elements, namely meter, form an isosceles right triangle. The first octagonal joint of each truss beam is connected to the second octagonal joint of the adjacent truss beam by rod group B, which serves to support rod group A and the truss beam. The triangular prism space truss unit formed by rod group A, rod group B and the truss beam is more stable.

[0008] Furthermore, in the docking of the rod assembly and the octagonal connector frame, the locking nut is located on the end face of the rod assembly. The length of the threaded section of the locking nut is twice the length of the threaded section of the octagonal connector. During installation, the magnet on the end face of the rod assembly and the magnet on the end face of the octagonal connector attract each other to determine the position. After attraction, the locking nut is rotated until the bottom of the threaded section of the octagonal connector is reached, thus completing the locking installation of the rod assembly and the octagonal connector.

[0009] Furthermore, the octagonal joint frame is installed on the passive connection end of the truss beam, and this installation process is completed on the ground.

[0010] Furthermore, the scalability of the triangular prism space truss unit structure is such that truss expansion is carried out on the basis of the regular triangular prism space truss unit. Truss expansion includes longitudinal and transverse expansion. Longitudinal expansion is carried out along the direction of the crossbeam, and transverse expansion is carried out along the direction perpendicular to the crossbeam.

[0011] The present invention achieves the following technical effects compared to the prior art:

[0012] 1. The truss joint is fixed on the truss beam. When performing horizontal and vertical expansion connections, the joint is not a separate connection component. It is only necessary to connect the rod group with the beam, which improves the connection efficiency.

[0013] 2. The extended regular triangular prism truss structure adopts a rectangular structure with grooves for the main beam, which can effectively fix various spatial loads.

[0014] 3. The extended truss load surface is planar, and spatial loads can be easily fixed on the truss, resulting in better stability.

[0015] 4. The octagonal joint frame is installed as a whole with the truss beams during the ground stage, and then packaged with other components into the space environment. This allows complex work to be completed on the ground, facilitating the construction of the truss in space. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 Schematic diagram of a triangular prism space truss unit structure

[0018] Figure 2 Schematic diagram of octagonal connector structure

[0019] Figure 3 Schematic diagram of the passive connection end structure of the truss beam

[0020] Figure 4 Schematic diagram of the active connection end structure of the truss beam

[0021] Figure 5 Internal schematic diagram of the active connection end of the truss beam

[0022] Figure 6 Schematic diagram of the rod assembly structure

[0023] Figure 7 Schematic diagram of beam connection

[0024] Figure 8 Cross-sectional view of trapezoidal groove of crossbeam

[0025] Figure 9 Truss unit expansion diagram

[0026] In the diagram: 1 is the truss beam, 2 is the octagonal joint frame, 3 is rod group A, 4 is rod group B, 5 is the lock nut, 6 is the octagonal joint 45° joint, 7 is the octagonal joint right angle joint, 8 is the octagonal joint end face magnet, 9 is the octagonal joint frame hole, 10 is the slider, 11 is the spring, 12 is the spring seat, 13 is the spring seat fixing pin, and 14 is the rod group magnet. Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The structural composition of the present invention is as follows Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6, Figure 7 , Figure 8 and Figure 9 As shown. The spatial truss unit structure includes a truss beam (1), an octagonal joint frame (2), a rod group A (3), a rod group B (4), and a locking nut (5). The truss beam (1) includes a slider (10), a spring (11), a spring seat (12), and a spring seat fixing pin (13). The upper part of the beam is milled with a groove, and the lower surface is machined into two symmetrical sides with an included angle of 60°. The two ends of the beam are divided into an active docking beam and a passive docking beam. The slider (10), spring (11), spring seat (12), and spring seat fixing pin (13) are all Installed on the active docking beam end; the octagonal joint frame (2) includes a right-angle joint (7), a 45° joint (6), and a joint magnet (8); the rod group A (3) includes the rod group body and the rod group magnet (14); the rod group B (4) includes the rod group body and the rod group magnet (14); the passive docking end of the truss beam is installed on the octagonal joint frame (2). When the truss is erected, the active end of the truss beam docks with the passive end of another truss beam. The rod group A (3) and the rod group B (4) are connected to the octagonal joint frame (2) through the locking nut (5).

[0029] The active docking end of the truss beam docks with the passive docking end. Two pairs of sliders (10) are connected to the spring (11) and spring seat (12) as one unit. They are inserted from the holes of the active docking beam. Then the spring seat fixing pin (13) is screwed into the hole at the end of the active docking beam to fix the position of the spring seat and prevent the spring seat from rotating axially and moving horizontally. During the process of inserting the active docking beam into the octagonal joint frame, the slider (10) is compressed along with the spring (11). When it reaches the corresponding hole, the slider pops out and locks.

[0030] The rod assembly and the octagonal connector bracket (2) are connected. The locking nut (5) is located on the end face of the rod assembly. The length of the threaded section of the locking nut (5) is twice the length of the threaded section of the octagonal connector. During installation, the magnet (14) on the end face of the rod assembly and the magnet (8) on the end face of the octagonal connector attract each other to determine the position. After attraction, rotate the locking nut (5) until the bottom of the threaded section of the octagonal connector, and complete the locking installation of the rod assembly and the octagonal connector bracket (2).

[0031] The triangular prism space truss unit structure can be expanded. Truss expansion is always based on the regular triangular prism space truss unit. Truss expansion includes longitudinal and transverse expansion. Longitudinal expansion occurs along the direction of the crossbeams, and transverse expansion occurs perpendicular to the crossbeams. A schematic diagram of the expanded structure is shown below. Figure 9 As shown.

Claims

1. A triangular prism space truss unit structure for constructing space trusses, comprising truss beams, octagonal joint frames, rod group A, rod group B, and locking nuts, characterized in that, The truss beam includes a slider, a spring, a spring seat, and a spring seat fixing pin. A groove is milled on the top of the beam, and the lower surface is machined into two symmetrical sides. The beam is divided into an active docking beam and a passive docking beam at both ends. The slider, spring, spring seat, and spring seat fixing pin are all installed at the active docking beam end. The octagonal joint frame includes a right-angle joint, a 45° joint, and a joint magnet. Rod group A includes a rod group body and a rod group magnet. Rod group B includes a rod group body and a rod group magnet. The passive docking end of the truss beam is installed on the octagonal joint frame. During truss construction, the active end of the truss beam docks with the passive end of another truss beam. Rod groups A and B are connected to the octagonal joint frame via locking nuts.

2. The triangular prism space truss unit structure for constructing space trusses according to claim 1, characterized in that, The active and passive docking ends of the truss beam are connected by two pairs of sliders, springs, and spring seats as one unit. They are inserted through the holes of the active docking beam. Then, the spring seat fixing pin is screwed into the hole at the end of the active docking beam to fix the position of the spring seat and prevent the spring seat from rotating axially and moving horizontally. During the process of inserting the active docking beam into the octagonal joint frame, the sliders are compressed along with the springs. When they reach the corresponding holes, the sliders pop out and lock.

3. A triangular prism space truss unit structure for constructing space trusses according to claim 1, characterized in that, The truss beam is 3 meters long. Member A is 0.85 meters long, and member B is 1.26 meters long. Members A are connected to the three truss beams via right-angle joints on an octagonal joint frame, forming an equilateral triangle. Member A connected to the octagonal joint frame via straight joints has a length of 1 meter. Each segment of the truss beam, after being divided into three equal parts, has a length of 1 meter. Member B connected to the octagonal joint frame via 45° joints has a length of... The three elements form an isosceles right triangle. The first octagonal joint frame of each truss beam is connected to the second octagonal joint frame of the adjacent truss beam by rod group B, which serves to support rod group A and the truss beam. The triangular prism space truss unit formed by rod group A, rod group B and the truss beam has greater stability.

4. A triangular prism space truss unit structure for constructing space trusses according to claim 1, characterized in that, The locking nut is located on the end face of the rod assembly. The length of the threaded section of the locking nut is twice the length of the threaded section on the end face of the octagonal connector bracket. During installation, the magnet on the end face of the rod assembly and the magnet on the end face of the octagonal connector bracket attract each other to determine the position. After attraction, rotate the locking nut until the bottom of the threaded section of the octagonal connector bracket is reached, thus completing the locking installation of the rod assembly and the octagonal connector bracket.

5. A triangular prism space truss unit structure for constructing space trusses according to claim 1, characterized in that, The octagonal joint bracket is installed at the passive connection end of the truss beam, and this installation process is completed on the ground.

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