CN210083582U - Locking device of space deployable truss - Google Patents
Locking device of space deployable truss Download PDFInfo
- Publication number
- CN210083582U CN210083582U CN201920790454.1U CN201920790454U CN210083582U CN 210083582 U CN210083582 U CN 210083582U CN 201920790454 U CN201920790454 U CN 201920790454U CN 210083582 U CN210083582 U CN 210083582U
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- rotor
- locking device
- pin
- groove
- locking
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Abstract
The utility model relates to a locking device of space deployable truss, including the gland, a housing, the rotor, a pair of dead lock round pin, the spiral spring in plane, wire rope, the gland lid fits on the casing, be equipped with the holding tank in the casing, be equipped with the pivot that extends to the notch direction in the middle part of holding tank, the shaft hole has been seted up in the middle of the rotor, the rotor is located in the pivot through the axle eye cover, be equipped with the wire casing on the outer circumference of rotor, wire rope coiling is fixed in the wire casing, set up a pair of symmetrical through wires hole on the lateral wall of holding tank, wire rope's one end stretches out from the through wires hole and exposes outside the casing, the wire rope other end is fixed; a groove is formed in the rotor, the flat spiral spring is arranged in the groove and connected with the rotating shaft in a sleeved mode, the upper end of the locking pin is inserted into the annular clamping groove in a plugged mode, and the bottom of the locking pin is installed in the symmetrical installation holes. The device has the advantages of simple structure, safety, reliability, easy installation and use and effective locking of the truss.
Description
Technical Field
The utility model relates to a technical field of truss structure can expand in space especially relates to a locking device of truss can expand in space.
Background
With the rapid development of aerospace engineering, the space structure is increasingly huge, and the problem that the payload volume of a carrier is limited is urgently needed to be solved, while the space expandable structure can simultaneously meet the requirements of large size, large folding ratio and light weight, and is fixed in a load cabin of the carrier in a folded state, when the carrier needs to work, the carrier is gradually expanded by using a driving device, and finally, the carrier is locked by a locking device and then keeps in a working state. The space truss expandable structure effectively overcomes the problem of limited volume of the spacecraft, improves the carrying capacity of the spacecraft, saves the launching cost, improves the safety of space exploration, and is widely applied to the structure of the spacecraft.
The expandable truss structure has the characteristics of light weight, high flexibility and the like, is easy to excite to cause vibration in the working process, and meanwhile, the hinges can generate the phenomena of contact, collision, sliding and the like, so that the structure is loosened, the stability and the positioning accuracy of the structure are greatly influenced, and even the whole mechanism is damaged and collapsed. In order to improve the stability of the truss structure during operation and ensure the stable linkage between all the truss parts after the structure is unfolded, a complete, feasible and effective locking device is necessary.
Disclosure of Invention
An object of the utility model is to provide a simple structure, safe and reliable, installation convenient to use's locking device of space deployable truss can launch the appointed state when the truss, locks the truss effectively.
In order to achieve the purpose, the utility model adopts the technical scheme that, a locking device of space expandable truss, including the gland, a housing, the rotor, a pair of dead lock round pin, the spiral spring in plane, wire rope, be equipped with the holding tank in the casing, the gland covers on the notch of holding tank through the bolt, be equipped with the pivot that extends to the notch direction in the middle part of holding tank, the shaft hole has been seted up in the middle of the rotor, the rotor is located in the pivot through the shaft hole cover, be equipped with the wire casing on the outer circumference of rotor, wire rope coiling is fixed in the wire casing, set up a pair of symmetrical through wires hole on the lateral wall of holding tank, wire rope's one end stretches out from the through wires hole and exposes outside the casing, the wire rope other end; a groove is formed in the rotor, the flat spiral spring is arranged in the groove and connected with the rotating shaft in a sleeved mode, a pair of locking pins are inserted into an annular clamping groove in the outer circumference of the rotor through pins at the upper ends of the locking pins, and the locking pins are installed in symmetrical installation holes in the shell through circular truncated cone seats at the bottoms of the locking pins.
As an improvement of the utility model, be equipped with screw and pressure spring in the symmetry mounting hole of casing, screw thread fixes in the mounting hole, and the terminal surface of screw passes through pressure spring looks butt with the round platform seat of the dead round pin of lock.
As an improvement of the utility model, the shape of gland, rotor and casing is cylindrical, and the casing highly is greater than the height of rotor, and the rotor can be wrapped up to the casing, and the space deployable truss is a cube, sets up this locking device on the continuous adjacent four faces of space deployable truss, and the wire rope that is located on same locking device fixes in setting up in the rope hole at the one side diagonal both ends of space deployable truss.
As an improvement of the utility model, the outer circumference of rotor is provided with two wire casings, and ring groove sets up between two wire casings, and the protrusion is equipped with two slopes according to 180 distributions on ring groove, and the incline direction and the angle on two slopes keep unanimous.
As an improvement of the present invention, the height of the ring groove on the outer circumference of the rotor is consistent with the height of the symmetrical mounting holes located on the inner circumference of the housing.
As an improvement of the utility model, the dead round pin of lock includes round platform seat, round pin post, pin, locating piece, and the bottom of round pin post is located to the round platform seat, and the upper end of round pin post is located to the pin, and on the lateral wall of round platform seat was located to the locating piece protrusion, the slip inclined plane that is equipped with the downward sloping in top one side of pin to the back that lies in the slip inclined plane on the pin is equipped with the locking plane, sets up a spacing groove on the mounting hole lateral wall of casing, and the locating piece card is located in the spacing groove.
As an improvement of the utility model, the inclination on the slip inclined plane on the pin keeps unanimous with the inclination on the slope on the ring groove, and after the rotor rotated certain angle, the slip inclined plane on the pin contacted with laminating mutually on the slope.
As an improvement of the utility model, the inboard middle part of gland is equipped with the constant head tank, and the gland closes the back with the casing lid mutually, and the top of pivot is arranged in the constant head tank.
As an improvement of the utility model, the equipartition is equipped with a plurality of screw thread through-holes on the gland, on the holding cell wall of casing the equipartition be equipped with the screw thread blind hole of the position looks adaptation of screw thread through-hole, adopt bolt threaded connection in screw thread through-hole and screw thread blind hole for gland and casing fixed connection.
Compared with the prior art, the utility model discloses an overall structure design benefit, rational in infrastructure stability, compact, easily preparation is realized, realizes with low costs, through rotor, dead round pin of lock, casing, flat spiral spring, pressure spring, wire rope isotructure's combined action, it is spacing to stabilize connection structure between each part of the deployable truss after expanding completely, ensures the stable in structure reliability of truss.
Drawings
Fig. 1 is an exploded view of a locking device according to a preferred embodiment of the present invention.
Fig. 2 is a schematic structural view of a housing in the locking device according to the preferred embodiment of the present invention.
Fig. 3 is a first schematic structural diagram of a rotor in the locking device according to the preferred embodiment of the present invention.
Fig. 4 is a schematic structural diagram ii of a rotor in the locking device according to the preferred embodiment of the present invention.
Fig. 5 is a schematic structural view of a slope in a rotor of a locking device according to a preferred embodiment of the present invention.
Fig. 6 is a first schematic structural view of a dead lock pin in the locking device according to the preferred embodiment of the present invention.
Fig. 7 is a second schematic structural view of a dead bolt in the locking device according to the preferred embodiment of the present invention.
Fig. 8 is a third schematic structural view of a dead lock pin in the locking device according to the preferred embodiment of the present invention.
Fig. 9 is a schematic view of an installation structure of the locking device and the expandable truss according to the preferred embodiment of the present invention.
In the figure: 1-gland, 2-shell, 3-rotor, 4-dead lock pin, 5-rotating shaft, 6-screw, 7-wire groove, 8-annular clamping groove, 9-slope, 10-round pedestal, 11-pin column, 12-pin, 13-sliding inclined plane, 14-stop plane, 15-positioning block and 16-pressure spring.
Detailed Description
For the purposes of promoting an understanding and appreciation of the invention, the invention will be further described and illustrated in connection with the accompanying drawings.
As shown in fig. 1-9, for the locking device of the space expandable truss shown in the preferred embodiment of the present invention, including a gland 1, a housing 2, a rotor 3, a pair of locking pins 4, a spiral spring, a pressure spring 16, and a steel wire rope, a holding tank is provided in the housing 2, the gland 1 is covered on the notch of the holding tank through a bolt, a rotating shaft 5 extending towards the notch is provided in the middle of the holding tank, a shaft hole is provided in the middle of the rotor 3, the rotor 3 is sleeved in the rotating shaft 5 through the shaft hole, the rotor 3 can rotate in the rotating shaft 5, a wire casing 7 is provided on the outer circumference of the rotor 3, the steel wire rope is wound and fixed in the wire casing 7, a pair of symmetrical wire through holes is provided on the sidewall of the holding tank, one end of the steel wire rope is extended out from the wire through hole and exposed outside the housing; a groove is arranged in the rotor 3, a flat spiral spring is arranged in the groove and is connected with the rotating shaft 5 in a sleeved mode, the flat spiral spring can achieve the effect of automatically contracting the steel wire rope on the rotor 3, a pair of symmetrical mounting holes used for fixing the locking pin 4 are formed in the side wall of the shell 2, an annular clamping groove 8 used for clamping the locking pin 4 is formed in the outer circumference of the rotor 3, connecting threads are arranged on the outer section of each mounting hole, the locking pin 4 is inserted into the shell 2 from the corresponding mounting hole, a round pedestal 10 at the bottom of the locking pin 4 is located in the corresponding mounting hole, a pin 12 at the upper end of the locking pin 4 is inserted into the annular clamping groove 8, the locking pin 4 can slide in the annular clamping groove 8, a screw 6 is connected with the outer section of the corresponding mounting hole in a threaded mode, the end face of the screw 6 is abutted to the round pedestal 10 of the locking pin 4 through a pressure spring 16, and the combined effect of the pressure spring 16 and, the dead lock pin 4 is retained within the housing 2.
The gland 1, the rotor 3 and the shell 2 are all cylindrical, the height of the shell 2 is larger than that of the rotor 3, the shell 2 can wrap the rotor 3, the space expandable truss is a cube, the locking devices are arranged on four continuous and adjacent surfaces of the space expandable truss, steel wire ropes on the same locking device are fixed in rope holes arranged at two ends of a diagonal line of one surface of the space expandable truss, and therefore after the expandable truss is completely expanded, the locking device is used for stabilizing the connection structure among all parts of the expandable truss, and the stability and the reliability of the structure of the truss are ensured.
Two wire grooves 7 are formed in the outer circumference of the rotor 3, an annular clamping groove 8 is formed between the two wire grooves 7, two slopes 9 distributed according to 180 degrees are arranged on the annular clamping groove 8 in a protruding mode, the inclination directions and the angles of the two slopes 9 are kept consistent, and the protruding height of each slope 9 is kept consistent with the height of the outer side wall of the rotor 3.
The height of the annular clamping groove 8 on the outer circumference of the rotor 3 is consistent with the height of the symmetrical mounting holes on the inner circumference of the shell 2, so that the locking pin 4 can be horizontally mounted between the annular clamping groove 8 and the mounting holes, and the locking pin 4 is guaranteed to have a good locking effect on the rotor 3.
The structure and the size of the pair of locking pins 4 are completely consistent. The two locking pins 4 respectively comprise a round pedestal 10, a pin 11, a pin 12 and a positioning block 15, the round pedestal 10 is arranged at the bottom of the pin 11, the locking pins 4 are clamped in the mounting holes through the round pedestal 10, the pin 12 is arranged at the upper end of the pin 11, the locking pins 4 are inserted into the annular clamping grooves 8 through the pin 12, the positioning block 15 is convexly arranged on the side wall of the round pedestal 10, a downward-inclined sliding inclined plane 13 is arranged on one side of the top end of the pin 12, a stopping plane 14 is arranged on the pin 12 and positioned on the back of the sliding inclined plane 13, the width of the stopping plane 14 is set at 3mm, the stopping plane 14 is always abutted against the groove bottom of the annular clamping grooves 8, a limiting groove is formed in the side wall of the mounting hole of the shell 2, the positioning block 15 is clamped in the limiting groove, the mounting position of the locking pins 4 in the mounting holes can be effectively limited through the positioning block.
The inclination angle of the sliding inclined plane 13 on the pin 12 is consistent with the inclination angle of the slope 9 on the ring-shaped clamping groove 8, the preferred inclination angle is 25 degrees, after the rotor 3 rotates for a certain angle, the sliding inclined plane 13 on the pin 12 is attached to and abutted against the slope 9, the locking pin 4 is limited by the slope 9 to further rotate, and therefore the locking effect on the rotor 3 is achieved.
The inboard middle part of gland 1 is equipped with the constant head tank, and gland 1 closes the back with casing 2 lid mutually, and the top of pivot 5 is arranged in the constant head tank, can realize the axial spacing to pivot 5 through the constant head tank, avoids pivot 5 to take place to deflect.
The equipartition is equipped with a plurality of screw thread through-holes on gland 1, and the equipartition is equipped with the screw thread blind hole with the position looks adaptation of screw thread through-hole on the holding cell wall of casing 2, adopts bolt threaded connection in screw thread through-hole and screw thread blind hole for gland 1 and casing 2 fixed connection.
The length of the steel wire rope changes according to the rotation angle of the rotor 3, the length of the steel wire rope changes within the range of 476mm-529mm, the movable angle of the rotor 3 is 159 degrees, and the length change of the steel wire rope and the angle change of the rotor 3 are in a linear relation.
The external diameter of gland 1 and casing 2 is 60mm, and the round pin post 11 diameter of locking round pin 4 is 6mm, and the external diameter of rotor 3 is 48mm, and wire rope's diameter is 2 mm.
In the unfolding process of the unfoldable truss, the steel wire rope is firstly stretched and then shortened, in the stretching process of the steel wire rope, the steel wire rope drives the rotor 3 to rotate, the rotor 3 drives the pair of locking pins 4 to rotate, and after the rotor 3 rotates for 159 degrees, the locking pins 4 limit the rotor 3 to be incapable of rotating any more due to the double actions of the slopes 9 in the annular clamping grooves 8 in the rotor 3 and the pressure springs, so that the rotor 3 can be locked.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.
Claims (9)
1. A locking device of a space expandable truss is characterized in that: the steel wire rope winding and fixing device comprises a gland, a shell, a rotor, a pair of locking pins, a flat spiral spring and a steel wire rope, wherein an accommodating groove is formed in the shell, the gland is covered on a notch of the accommodating groove through a bolt, a rotating shaft extending towards the notch direction is arranged in the middle of the accommodating groove, a shaft hole is formed in the middle of the rotor, the rotor is arranged in the rotating shaft through the shaft hole in a sleeved mode, a wire groove is formed in the outer circumference of the rotor, the steel wire rope is wound and fixed in the wire groove, a pair of symmetrical wire through holes are formed in the side wall of the accommodating groove, one end of the steel wire rope extends out of; a groove is formed in the rotor, the flat spiral spring is arranged in the groove and connected with the rotating shaft in a sleeved mode, a pair of locking pins are inserted into an annular clamping groove in the outer circumference of the rotor through pins at the upper ends of the locking pins, and the locking pins are installed in symmetrical installation holes in the shell through circular truncated cone seats at the bottoms of the locking pins.
2. The spatial deployable truss locking device as claimed in claim 1, wherein the housing has symmetrical mounting holes in which screws and compression springs are disposed, the screws are threadedly secured in the mounting holes, and end faces of the screws are abutted against the circular truncated cone seats of the dead-lock pins by the compression springs.
3. The locking device of a space expandable truss as claimed in claim 2, wherein the gland, the rotor and the housing are all cylindrical in shape, the height of the housing is greater than that of the rotor, the housing can wrap the rotor, the space expandable truss is a cube, the locking device is provided on four consecutive adjacent faces of the space expandable truss, and the wire ropes on the same locking device are fixed in the rope holes provided on two diagonal ends of one face of the space expandable truss.
4. The locking device for the space expandable truss as claimed in claim 2 or 3, wherein the rotor is provided with two slots on the outer circumference, the ring slot is provided between the two slots, two slopes distributed at 180 ° are projected on the ring slot, and the inclination direction and angle of the two slopes are kept consistent.
5. The locking device for a space expandable truss according to claim 4 wherein the height of said ring-shaped slots on the outer circumference of the rotor is maintained at the same height as the symmetrical mounting holes on the inner circumference of the housing.
6. The spatial expandable truss locking device as claimed in claim 5, wherein the locking pin comprises a circular base, a pin, and a positioning block, the circular base is disposed at the bottom of the pin, the pin is disposed at the upper end of the pin, the positioning block is protruded from the sidewall of the circular base, a downwardly inclined sliding slope is disposed at one side of the top end of the pin, a stop plane is disposed at the back of the sliding slope on the pin, a limit groove is disposed on the sidewall of the mounting hole of the housing, and the positioning block is locked in the limit groove.
7. The spatial deployable truss locking device as claimed in claim 6, wherein the angle of inclination of the sliding ramp on the pin is coincident with the angle of inclination of the ramp on the ring slot.
8. The locking device for the space expandable truss as claimed in claim 7, wherein the inner middle part of the pressing cover is provided with a positioning groove, and the top end of the rotating shaft is positioned in the positioning groove after the pressing cover is combined with the housing.
9. The locking device for a space-expandable truss according to claim 8, wherein the pressing cover is uniformly provided with a plurality of threaded through holes, the accommodating groove wall of the housing is uniformly provided with threaded blind holes matched with the threaded through holes, and the pressing cover is fixedly connected with the housing by adopting bolt threads to be connected in the threaded through holes and the threaded blind holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920790454.1U CN210083582U (en) | 2019-05-29 | 2019-05-29 | Locking device of space deployable truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920790454.1U CN210083582U (en) | 2019-05-29 | 2019-05-29 | Locking device of space deployable truss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210083582U true CN210083582U (en) | 2020-02-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920790454.1U Expired - Fee Related CN210083582U (en) | 2019-05-29 | 2019-05-29 | Locking device of space deployable truss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210083582U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112722327A (en) * | 2020-12-14 | 2021-04-30 | 兰州空间技术物理研究所 | Constant moment scroll spring unfolding and locking mechanism |
| CN113089931A (en) * | 2021-04-13 | 2021-07-09 | 谯红 | Spoke type cable truss structure reinforced by carbon fiber cables |
-
2019
- 2019-05-29 CN CN201920790454.1U patent/CN210083582U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112722327A (en) * | 2020-12-14 | 2021-04-30 | 兰州空间技术物理研究所 | Constant moment scroll spring unfolding and locking mechanism |
| CN113089931A (en) * | 2021-04-13 | 2021-07-09 | 谯红 | Spoke type cable truss structure reinforced by carbon fiber cables |
| CN113089931B (en) * | 2021-04-13 | 2024-01-09 | 谯红 | Spoke type cable truss structure reinforced by carbon fiber cables |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nanjing Monte tech Environmental Protection Technology Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020320000111 Denomination of utility model: A locking device for space deployable truss Granted publication date: 20200218 License type: Common License Record date: 20201105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 Termination date: 20210529 |