CN113788164B - Space truss connecting device with bidirectional locking function - Google Patents
Space truss connecting device with bidirectional locking function Download PDFInfo
- Publication number
- CN113788164B CN113788164B CN202111072365.1A CN202111072365A CN113788164B CN 113788164 B CN113788164 B CN 113788164B CN 202111072365 A CN202111072365 A CN 202111072365A CN 113788164 B CN113788164 B CN 113788164B
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- tenon
- crank
- groove
- rack
- hole
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005486 microgravity Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a bidirectional-locking space truss connecting device which comprises a shell, a rotating mechanism and a transmission mechanism, wherein the shell comprises an elastic tenon, a tenon connecting section, a sliding chute, a connecting plate, an opening, a rack groove, a small hole and a semicircular groove, the rotating mechanism comprises a guide rod, a connecting rod, a spring and a crank, and the transmission mechanism comprises a rack, a rotating block and a set screw. The connecting device can simultaneously complete the bidirectional locking of different connected parts at two ends, one end can be connected with the ball head through the tenon, and the other end is connected with the truss rod through the axial joint.
Description
Technical Field
The invention belongs to the technical field of truss structures, and particularly relates to a space truss connecting device capable of being locked in a two-way mode.
Background
With the vigorous development of the aerospace technology and the further increase of the exploration and development requirements of human beings on space resources, the scale, the on-orbit operation magnitude and the task complexity of the corresponding large-scale space structure are also increased sharply. Because large space facilities are difficult to launch and lift off at one time, the on-rail assembly is required after the modules are launched, and the corresponding problems of on-rail assembly and the like are caused.
Currently, the space assembly modes which are more applied comprise outside astronaut cabins and mechanical arm assembly. Due to the special environment of the outer space, the on-orbit assembly task can greatly threaten the safety of astronauts, so that a simple and efficient truss structural member is urgently needed, the assembly time is shortened, the assembly efficiency is improved, and the assembly safety is ensured.
Disclosure of Invention
In view of the above, the present invention provides a two-way locking space truss connection device, which aims to solve the above-mentioned disadvantages.
In order to solve the technical problem, the invention provides a bidirectional locking space truss connecting device, which is characterized by comprising the following components: the device comprises a shell, a rotating mechanism and a transmission mechanism; one end of the space truss connecting device can be connected with a ball head through an elastic tenon, step-shaped tenon holes which are uniformly distributed are formed in the surface of the ball head, the major diameter of each step-shaped tenon hole is the same as the outer diameter of the elastic tenon, the minor diameter of each step-shaped tenon hole is the same as the outer diameter of a tenon connecting section, the other end of each step-shaped tenon hole is connected with a truss rod through an axial joint, a semicircular boss is mounted at one end of each axial joint, a pin hole which is the same as the diameter of a pin is formed in each boss, and the other end of each axial joint is a threaded hole.
Preferably, the shell comprises an elastic tenon, a tenon connecting section, a sliding groove, a connecting plate, an opening, a rack groove, a small hole and a semicircular groove; casing one end is the elasticity tenon, and the other end is the semicircle ring recess, install the axis of rotation on the connecting plate, the connecting plate with the part of casing outer lane contact has been seted up the opening, the opening is used for restricting articulate turned angle, and its width is the same with articulate width, with the casing opposite side that the opening is relative is the rack groove, the casing outer lane is close to semicircle ring recess one side and has been seted up the aperture, semicircle ring recess one side has thin baffle.
Preferably, the rotating mechanism comprises a guide rod, a connecting rod, a spring and a crank; the outer diameter of the guide rod is the same as the inner diameter of the tenon connecting section, one end of the guide rod is connected with the connecting rod through a hinge, the bottom of the guide rod is in contact with a spring, the spring is installed in the sliding groove, one end of the spring is fixed on the connecting plate, the other end of the connecting rod is connected with the crank through a hinge, the crank can drive the guide rod to move in the sliding groove through the connecting rod so as to compress or release the spring, the crank comprises a crank handle, a hinge groove, a shaft center hole and a gear, the shaft center hole is matched with a rotating shaft on the connecting plate, and the crank is rotated by the crank handle to rotate by a certain angle around the rotating shaft so that the gear at the top end rotates by a certain angle around the rotating shaft.
Preferably, the transmission mechanism comprises a rack, a rotating block and a set screw; the recess the same with rack groove size is seted up to the rack both sides, and installs through the draw-in groove on the casing, the rack with articulate gear mesh mutually, turning block one end is the ring channel, rack one end is inlayed in the ring channel, the turning block other end is the less bolt of diameter, it is fixed that the bolt can accomplish circumference in inserting axial joint's the pinhole, rotation prevention, the curved surface groove has been seted up to the turning block surface, the curved surface inslot is installed holding screw and can is slided in the curved surface inslot.
Compared with the prior art, the invention has the following technical effects:
1. the connecting device can simultaneously complete the bidirectional locking of different connected parts at two ends.
2. The connecting device is strong in universality, two ends of the connecting device can be connected with ball heads of different types and trusses of different sizes, the sizes of the tenon holes of the different ball heads are consistent only by ensuring, and the diameter of the threaded hole of the radial joint can also be changed according to trusses of different sizes.
3. The connection mode is simple and efficient, the connection rigidity can be guaranteed, and falling is avoided.
4. The assembly process is simple, a great number of installation and fixing modes are not needed, the installation and the disassembly can be realized only by manually shifting the crank, and the truss assembling device is very suitable for truss assembling work under the space microgravity condition.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a space truss attachment arrangement;
FIG. 2 is a sectional view of the housing;
FIG. 3 is a three-dimensional schematic view of the crank;
FIG. 4 is a three-dimensional schematic view of a rack;
FIG. 5 is a three-dimensional schematic view of a turning block;
FIG. 6 is a schematic view of an axial joint configuration;
FIG. 7 is a schematic view of a ball head structure;
FIG. 8 is a schematic view of a ball head assembly;
FIG. 9 is a schematic view of a space truss module assembly;
in the drawings: 1. a housing; 11. an elastic tenon; 12. a tenon joint section; 13. a chute; 14. a connecting plate; 15. a rotating shaft; 16. an opening; 17. a rack slot; 18. a small hole; 19. a semicircular groove; 2. a rotating mechanism; 21. a guide bar; 22. a connecting rod; 23. a spring; 24. a crank; 241. a crank handle; 242. a hinge slot; 243. a shaft center hole; 244. a gear; 3. a transmission mechanism; 31. a rack; 311. a groove; 32. rotating the block; 321. an annular groove; 322. a curved groove; 323. a bolt; 33. tightening the screw; 4. a ball head; 41. a tenon hole; 5. an axial joint; 51. a semicircular boss; 52. a pin hole; 53. a threaded hole; 6. a truss rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1 to 7, the present invention discloses a bi-directional locking space truss connection device, including: the device comprises a shell 1, a rotating mechanism 2 and a transmission mechanism 3; one end of the space truss connecting device can be connected with the ball head 4 through the elastic tenon 11, step-shaped tenon holes 41 which are uniformly distributed are formed in the surface of the ball head, the large diameter of each step-shaped tenon hole 42 is the same as the outer diameter of the elastic tenon 22, the small diameter of each step-shaped tenon hole is the same as the outer diameter of the tenon connecting section 12, the other end of each step-shaped tenon hole is connected with the truss rod 6 through the axial joint 5, a semicircular boss 51 is installed at one end of the axial joint 5, a pin hole 52 which is the same as the diameter of the bolt 323 is formed in the semicircular boss 51, and the other end of the axial joint 5 is a threaded hole 53.
The shell 1 comprises an elastic tenon 11, a tenon connecting section 12, a sliding groove 13, a connecting plate 14, a rotating shaft 15, an opening 16, a rack groove 17, a small hole 18 and a semicircular groove 19; the casing 1 one end is elasticity tenon 11, and the other end is semicircle ring groove 19, installs axis of rotation 15 on the connecting plate 14, and opening 16 has been seted up with the part of 1 outer lane contact of casing to connecting plate 14, and the opening is used for restricting the turned angle of crank 24, and its width is the same with crank 24's width, and the casing opposite side relative with opening 16 is rack slot 17, and casing 1 outer lane is close to semicircle ring groove 19 one side and has seted up aperture 18, and there is thin baffle semicircle ring groove 19 one side.
The rotating mechanism 2 comprises a guide rod 21, a connecting rod 22, a spring 23 and a crank 24; the outer diameter of the guide rod 21 is the same as the inner diameter of the tenon connecting section 12, one end of the guide rod 21 is hinged to the connecting rod 22, the bottom of the guide rod 21 is in contact with the spring 23, the spring is installed in the sliding groove 13, one end of the spring is fixed on the connecting plate 14, the other end of the connecting rod 22 is connected with the crank 24 through a hinge, the crank 24 can drive the guide rod 21 to move in the sliding groove 13 through the connecting rod 22 so as to compress or release the spring 23, the crank 24 comprises a crank handle 241, a hinge groove 242, a shaft center hole 243 and a gear 244, the shaft center hole 243 is matched with the rotating shaft 15 on the connecting plate 14, and the gear 244 at the top end can rotate a certain angle around the rotating shaft 15 by rotating the crank handle 241.
The transmission mechanism 3 comprises a rack 31, a rotating block 32 and a set screw 33; the two sides of the rack 31 are provided with grooves 311 with the same size as the rack groove 17 and are arranged on the shell 1 through clamping grooves, the rack 31 is meshed with a gear 244 on the crank 24, one end of the rotating block 32 is an annular groove 321, one end of the rack 31 is embedded in the annular groove 321, the other end of the rotating block 32 is a bolt 323 with a smaller diameter, the bolt 323 can be inserted into a pin hole 52 of the axial joint 5 to complete circumferential fixation and prevent rotation, a curved groove 322 is formed in the outer surface of the rotating block 32, and a set screw 33 arranged in the curved groove 322 can slide in the groove.
The specific working process of the invention is as follows:
when assembling the space truss, the crank handle 241 is shifted to rotate the crank 24 by a certain angle around the rotating shaft 15, one end of the crank 24 drives the guide rod 21 to horizontally move in the sliding slot 13 through the connecting rod 22, at this time, the guide rod 21 is separated from the tenon connecting section 12 and enters the sliding slot 13, the spring 23 is extruded, at the same time, the other end of the crank 24 is driven by the gear 244 to move the rack 31 engaged therewith to the leftmost end, because one end of the rack 31 is embedded in the annular slot 321 and limited by the set screw 33, the horizontal movement of the rack 31 drives the rotating block 32 to horizontally move and rotate along the annular slot direction, at this time, the bolt 323 at the other end of the rotating block 32 is separated from the jack 52 of the axial joint 5, referring to the position shown in fig. 1, the joint assembling work can be performed, because the tenon connecting section 12 is made of elastic material, the elastic tenon 11 can be inserted into the tenon hole 41 of the bulb 4, and the other end inserts the axial joint 5 into the connecting device shell 1 and rotates 180 degrees to contact with the thin baffle plate, thereby completing the assembly work.
After the joint is assembled, the crank 24 is loosened, the guide rod 21 can be rebounded to the tenon connecting section 12 under the action of the elastic force due to the action of the elastic force of the spring 23, the position shown in fig. 8 is referred to, at the moment, the guide rod 21 at one end of the connecting device shell 1 enters the elastic connecting section 12 under the action of the thrust of the spring 23, the connection safety between the shell 1 and the ball head 4 is ensured, the connection rigidity is improved, the bolt 323 at the tail end of the rotating block 32 can rotate to move towards one end close to the radial joint 5 under the driving of the gear 244 at the upper end of the crank 24 at the other end, and enters the jack 52 of the radial joint 5 to complete circumferential fixation and prevent rotation, the connection reliability of the connecting device in the axial direction is ensured by the semicircular boss 51, and the circumferential connection reliability of the connecting device is ensured by the bolt 323.
Finally, a plurality of fitting assemblies are connected together by the truss bars 6 to form a complete space truss module, see fig. 9.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (2)
1. A bi-directionally locking space truss attachment apparatus, comprising: the space truss connecting device comprises a shell, a rotating mechanism and a transmission mechanism, wherein one end of the space truss connecting device can be connected with a ball head through an elastic tenon, the surface of the ball head is provided with step-shaped tenon holes which are uniformly distributed, the major diameter of each step-shaped tenon hole is the same as the outer diameter of the elastic tenon, the minor diameter of each step-shaped tenon hole is the same as the outer diameter of a tenon connecting section, the other end of each step-shaped tenon hole is connected with a truss rod through an axial joint, one end of each axial joint is provided with a semicircular boss, each boss is provided with a pin hole with the same diameter as a pin, and the other end of each axial joint is a threaded hole;
the rotating mechanism comprises a guide rod, a connecting rod, a spring and a crank, the outer diameter of the guide rod is the same as the inner diameter of the tenon connecting section, one end of the guide rod is connected with the connecting rod through a hinge, the bottom surface of the guide rod is in contact with the spring, the spring is installed in the chute, one end of the spring is fixed on the connecting plate, the other end of the connecting rod is connected with the crank through a hinge, the crank can drive the guide rod to move in the chute through the connecting rod so as to compress or release the spring, the crank comprises a crank handle, a hinge groove, a shaft center hole and a gear, the shaft center hole is matched with a rotating shaft on the connecting plate, and the crank is rotated for a certain angle around the rotating shaft by rotating the crank handle so as to rotate the gear at the top end for a certain angle around the rotating shaft;
drive mechanism includes rack, turning block, holding screw, the recess the same with rack groove size is seted up to the rack both sides, and installs through the draw-in groove on the casing, the rack with epaxial gear mesh mutually, turning block one end is the ring channel, rack one end is inlayed in the ring channel, the turning block other end is the less bolt of diameter, the bolt can be inserted and accomplish circumference fixed in axial joint's the pinhole, prevents to rotate, the curved surface groove has been seted up to the turning block surface, the holding screw is installed to the curved surface inslot and can be slided in the curved surface inslot.
2. The space truss connecting device with the bidirectional locking function as claimed in claim 1, wherein the housing comprises an elastic tenon, a tenon connecting section, a sliding groove, a connecting plate, an opening, a rack groove, a small hole and a semicircular groove, one end of the housing is the elastic tenon, the other end of the housing is the semicircular groove, a rotating shaft is mounted on the connecting plate, the connecting plate is provided with the opening in contact with the outer ring of the housing, the opening is used for limiting the rotation angle of the crank and has the width the same as that of the crank, the other side of the housing opposite to the opening is the rack groove, the outer ring of the housing is provided with the small hole on one side close to the semicircular groove, and a thin baffle is arranged on one side of the semicircular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072365.1A CN113788164B (en) | 2021-09-14 | 2021-09-14 | Space truss connecting device with bidirectional locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072365.1A CN113788164B (en) | 2021-09-14 | 2021-09-14 | Space truss connecting device with bidirectional locking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113788164A CN113788164A (en) | 2021-12-14 |
| CN113788164B true CN113788164B (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111072365.1A Expired - Fee Related CN113788164B (en) | 2021-09-14 | 2021-09-14 | Space truss connecting device with bidirectional locking function |
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| CN (1) | CN113788164B (en) |
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Granted publication date: 20220902 |