CN114197641A - Active tensioning cable net truss structure - Google Patents
Active tensioning cable net truss structure Download PDFInfo
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- CN114197641A CN114197641A CN202210024565.8A CN202210024565A CN114197641A CN 114197641 A CN114197641 A CN 114197641A CN 202210024565 A CN202210024565 A CN 202210024565A CN 114197641 A CN114197641 A CN 114197641A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
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Abstract
The invention discloses a tension cable net truss structure, which mainly solves the problems of weak environmental interference resistance, and poor precision and stability of the existing tension cable net truss structure. The cable net comprises a plurality of active truss components, a plurality of passive truss components, a plurality of inhaul cables and cable net components. The active truss components and the passive truss components are uniformly distributed along the circumference and are arranged in a crossed manner; two ends of each active truss component are correspondingly connected with two ends of two adjacent passive truss components through inhaul cables respectively to form a plurality of closed polygons; the A end of each active truss component is fixed with the B end of the next passive truss component along the circumferential direction; the end A of each passive truss component is connected with the end B of the next active truss component along the circumferential direction; the cable net component is respectively connected with two ends of all the active truss components and the passive truss components, and the upper surface and the lower surface are respectively stretched into a curved surface. The invention can self-adjust precision and self-restrain vibration, greatly compresses volume, lightens weight, and can be applied to aerospace, buildings, robots and space expandable structures.
Description
Technical Field
The invention relates to a tension cable net truss structure, in particular to an actively adjustable tension cable net truss structure which can be used for aerospace, building, robots and space deployable structures.
Background
The wide-band high-gain deployable antenna is an essential device for building mobile satellite communication, deep space exploration, earth observation, very long baseline interferometry, space solar power stations and large space military infrastructure. In order to meet the limit of carrier volume and weight of the rocket, the deployable antenna needs to have the characteristics of small furled volume and light weight; in order to realize high gain and high resolution, the deployable antenna needs to have the characteristics of large size and high precision. At present, the requirements on the caliber of the deployable antenna reach hundreds of meters, and the requirements on the precision reach a submillimeter level. The tension type cable net truss structure is a structure provided on the basis of a tension integral structure technology and mainly comprises a continuous tension cable unit and a discontinuous compression rod unit. The tension type cable net truss structure has the advantages of self-stress balance, extremely light weight, extremely high expansion ratio, low control cost and the like, is widely applied to the fields of buildings, robots and the like, and is also one of the optimal structural schemes of a space expandable structure. However, the tensile cable net truss structure has poor environmental interference resistance, the shape and the dynamic characteristics of the tensile cable net truss structure can change along with the change of the external environment, and the tensile cable net truss structure is difficult to be applied to occasions with high precision and shape retention capacity. Fig. 1 shows a typical tensioned cable net truss structure, which is composed of compression bars and tension cables, and the upper surface of the structure is formed into a paraboloid by applying prestress to the compression bars and the tension cables for reflecting electromagnetic waves, but the structure is easy to deform in a spatially transient thermal environment and to continuously vibrate under dynamic excitation, so that errors are generated on the upper surface of the structure, and the working performance of the structure is affected.
Disclosure of Invention
The invention aims to provide an active tensioning cable net truss structure aiming at the defects of the prior art, so as to realize the precision self-adjustment and vibration self-suppression of the structure and ensure the precision and the shape under the environmental interference.
The technical conception for realizing the aim of the invention is as follows: an active component is designed in the tension cable net truss structure, and the structure has the capacity of adjusting the shape of the structure in real time or generating a vibration suppression signal through the active component.
According to the above thought, the invention provides the following two technical schemes:
the technical scheme 1:
1. the utility model provides an active stretch-draw cable net truss structure, includes a plurality of passive truss subassemblies, a plurality of cable, its characterized in that: the active truss components and all the passive truss components are uniformly inclined at the same angle in the clockwise direction or the anticlockwise direction, and are uniformly distributed and arranged at intervals in the circumferential direction;
the end A and the end B of each active truss component are respectively and correspondingly and fixedly connected with the end A and the end B of two adjacent passive truss components through a guy cable to form a plurality of closed polygons;
the A end of each active truss component is fixedly connected with the B end of the next passive truss component along the inclined direction through a guy cable;
the A end of each passive truss component is fixedly connected with the B end of the next active truss component (1) along the inclined direction through a guy cable.
Furthermore, each active truss component comprises an upper active support rod, a lower active support rod, an upper adapter, a lower adapter, two active rod adjusting devices and an actuator, wherein one end of the actuator is fixedly connected with one end of the upper support rod through the upper adapter, and the other end of the actuator is fixedly connected with one end of the lower support rod through the lower adapter; the two active rod adjusting devices are respectively connected with the other ends of the upper supporting rod and the lower supporting rod;
furthermore, each passive truss component comprises a passive support rod and two passive rod adjusting devices, and the two passive rod adjusting devices are fixedly connected to two ends of the passive support rod respectively.
Furthermore, the driving rod adjusting device and the driven rod adjusting device both comprise a rod sleeve body tightening ring and a tail cover plate, and the rod sleeve body is respectively and fixedly connected with the tightening ring and the tail cover plate.
The technical scheme 2 is as follows:
2. the utility model provides an active stretch-draw cable net truss structure, includes a plurality of passive truss subassemblies, a plurality of cable subassemblies and cable net subassembly, its characterized in that: the active truss components and all the passive truss components are uniformly inclined at the same angle in the clockwise direction or the anticlockwise direction, and are uniformly distributed and arranged at intervals in the circumferential direction;
the end A and the end B of each active truss component are respectively and correspondingly and fixedly connected with the end A and the end B of two adjacent passive truss components through a guy cable to form a plurality of closed polygons;
the A end of each active truss component is fixedly connected with the B end of the next passive truss component (2) along the inclined direction through a guy cable (3);
the A end of each passive truss component is fixedly connected with the B end of the next active truss component (1) along the inclined direction through a guy cable;
the cable net components are respectively connected with the A ends and the B ends of all the active truss components and all the passive truss components, and the upper surface and the lower surface are respectively stretched into a curved surface.
Furthermore, the driving rod adjusting device comprises a driving rod sleeve body, a driving hooping ring, a driving tail cover plate and a driving cable net cover plate, wherein the driving rod sleeve body is fixedly connected with the driving hooping ring, the driving tail cover plate and the driving cable net cover plate respectively.
Furthermore, the cable net assembly comprises an upper cable net assembly, a lower cable net assembly and a plurality of vertical cable net assemblies, each cable net assembly comprises a plurality of sections of cables and cable net connecting buckles, and the cables are tightly pressed through one cable net connecting buckle at the staggered nodes; the boundary node of the upper cable net component is hung at the A end of the active truss component or the passive truss component adjacent to the upper cable net component, and the boundary node of the lower cable net component (42) is hung at the B end of the active truss component or the passive truss component adjacent to the lower cable net component; the upper and lower cable net components are connected with each other at the cable net connecting buckle through the vertical cable net component.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has the advantages that the structure has the capabilities of self-adjusting precision and self-inhibiting vibration due to the addition of the active truss component: on one hand, the length of the active truss component can be adjusted to realize compensation of other quasi-static errors such as thermal deformation and the like, so that the structural shape is kept in a high-precision state; on the other hand, the active truss assembly can generate a control waveform according to the vibration response, so that the vibration can be quickly attenuated, and the structural shape is kept in a stable state.
2. The tension self-balancing structural system is formed by adopting the active truss assembly, the passive truss assembly, the inhaul cable and other slender members, so that the average density of the whole structure can be reduced, the mass of the whole structure is reduced, the volume of the whole structure is compressed, and the compression rate of the whole structure can reach over 90 percent.
3. The upper surface and the lower surface of the antenna are respectively stretched into a curved surface through the cable net component, so that the using function of the structure is increased, namely the two curved surfaces can be used as two curved surfaces with different functions, for example, the metal wire nets are respectively paved to form two antenna reflecting surfaces.
Drawings
FIG. 1 is a schematic view of a tensioned cable net truss structure of the prior art;
fig. 2 is a schematic structural view of an active tensioned cable net truss according to claim 1;
fig. 3 is a schematic structural view of an active tensioned cable net truss according to claim 2 of the present invention;
FIG. 4 is a schematic structural view of the active truss assembly of FIGS. 2 and 3;
FIG. 5 is a schematic structural view of the passive truss assembly of FIGS. 2 and 3;
FIG. 6 is a schematic structural view of the cable assembly of FIG. 3;
FIG. 7 is a schematic structural diagram of an active lever adjusting device according to claim 1;
FIG. 8 is a schematic structural diagram of a passive rod adjusting device according to claim 1;
fig. 9 is a schematic view of the configuration of the cable tie buckle of fig. 6.
FIG. 10 is a schematic structural diagram of an active lever adjusting device according to claim 2 of the present invention;
fig. 11 is a schematic structural diagram of a passive rod adjusting device in the technical scheme 2 of the invention.
Detailed Description
Embodiments and effects of the present invention will be described in further detail below with reference to the accompanying drawings.
Example 1:
referring to fig. 2, the active tensioned cable network truss structure of the present example includes a plurality of active truss assemblies 1, a plurality of passive truss assemblies 2, and a plurality of tension cables 3. The active truss assemblies 1 and all the passive truss assemblies 2 are uniformly inclined at the same angle in the clockwise direction or the anticlockwise direction and are uniformly distributed along the circumferential direction, and the active truss assemblies and the passive truss assemblies are arranged in a crossed manner; the end A and the end B of each active truss assembly 1 are respectively and correspondingly and fixedly connected with the end A and the end B of two adjacent passive truss assemblies 2 through a guy cable 3 to form a plurality of closed polygons; the A end of each active truss assembly 1 is fixedly connected with the B end of the next passive truss assembly 2 along the inclined direction through a pull rope 3; the A end of each passive truss component 2 is fixedly connected with the B end of the next active truss component 1 along the inclined direction through a guy cable 3, and a closed tension structure system is formed. All the guy wires 3 can adopt steel wire ropes or Kevlar ropes or carbon fiber ropes or poly-fiber imine ropes, and the Kevlar ropes are adopted in the embodiment but not limited.
Referring to fig. 4, each active truss assembly 1 of the present example includes an upper active support bar 12a, a lower active support bar 12b, an upper rotary joint 14a, a lower rotary joint 14b, two active bar adjusting devices 11, and an actuator 13, wherein one end of the actuator 13 is fixedly connected to one end of the upper support bar 12a through the upper rotary joint 14a, and the other end is fixedly connected to one end of the lower support bar 12b through the lower rotary joint 14 b; the two active lever adjusting devices 11 are respectively connected to the other ends of the upper support lever 12a and the lower support lever 12 b. All the active support rods 12 are made of carbon fiber composite materials or aluminum alloy materials or titanium alloy materials, and all the actuators 13 are piezoelectric ceramic actuators.
Referring to fig. 5, each passive truss assembly 2 of the present example includes a passive support bar 21 and two passive bar adjusting devices 22, and the two passive bar adjusting devices 22 are respectively and fixedly connected to two ends of the passive support bar 21. All the passive support rods 22 are made of carbon fiber composite materials or aluminum alloy materials or titanium alloy materials;
referring to fig. 7, each driving rod adjusting device 11 of this embodiment includes a driving rod sleeve body 111, a driving clamping ring 112 and a driving tail cover plate 113, where the driving rod sleeve body 111 is respectively fastened to the driving clamping ring 112 and the driving tail cover plate 113, and the driving rod sleeve body 111 and the driving tail cover plate 113 are both provided with a plurality of through holes for fixing a cable, the driving clamping ring 112 and the driving rod sleeve body 111 are both provided with a threaded structure and an engagement structure in interference fit, and at least one of the threaded structures of the driving rod sleeve body 111 is provided with a slot, so that when the driving clamping ring 112 and the driving rod sleeve body 111 are engaged with each other, the driving rod sleeve body 111 is elastically deformed, and the slot is reduced to achieve fastening.
Referring to fig. 8, the passive rod adjusting device 22 of this embodiment includes a passive rod sleeve body 221, a passive tightening ring 222 and a passive tail cover plate 223, where the passive rod sleeve body 221 is respectively fastened to the passive tightening ring 222 and the passive tail cover plate 223, and a plurality of through holes for fixing a cable are formed on the passive rod sleeve body 221 and the passive tail cover plate 223, the passive tightening ring 222 and the passive rod sleeve body 221 are respectively provided with a thread structure and an engagement structure in interference fit, and at least one groove is formed in the thread structure of the passive rod sleeve body 221, so that when the passive tightening ring 222 and the passive rod sleeve body 221 are engaged with each other, the passive rod sleeve body 221 is elastically deformed, and the groove is reduced to achieve fastening.
Example 2:
referring to fig. 3, the active tensioned cable network truss structure of the present example includes a plurality of active truss assemblies 1, a plurality of passive truss assemblies 2, a plurality of cable assemblies 3, and cable network assemblies 4. The active truss assemblies 1 and all the passive truss assemblies 2 are uniformly inclined at the same angle in the clockwise direction or the anticlockwise direction and are uniformly distributed along the circumferential direction, namely the active truss assemblies and the passive truss assemblies are arranged in a crossed manner; the end A of each active truss assembly 1 is fixedly connected with the ends A of two adjacent passive truss assemblies 2 through a guy cable 3, and the end B of each active truss assembly 1 is correspondingly fixed with the ends B of two adjacent passive truss assemblies 2 through a guy cable 3 to form a plurality of closed polygons; the A end of each active truss component 1 is fixedly connected with the B end of the next passive truss component 2 along the inclined direction through a guy cable 3; the A end of each passive truss component 2 is fixedly connected with the B end of the next active truss component 1 along the inclined direction through a guy cable 3; the cable net component 4 is respectively connected with the ends A and the ends B of all the active truss components 1 and all the passive truss components 2, and the upper surface and the lower surface are respectively stretched into a curved surface.
Referring to fig. 6, the cable net assembly 4 of the present example includes two upper and lower cable net assemblies 41 and 42 and a plurality of vertical cable net assemblies 43, each cable net assembly includes a plurality of sections of cables 45 and cable net connecting buckles 44, and each section of cables 45 is compressed by one cable net connecting buckle 44 at an alternate node; each boundary node of the upper cable net assembly 41 is respectively hung at the end A of the active truss assembly 1 or the passive truss assembly 2 which is closest to the node, and each boundary node of the lower cable net assembly 42 is respectively hung at the end B of the active truss assembly 1 or the passive truss assembly 2 which is closest to the node; the two upper and lower cable net assemblies are interconnected at cable net connection links 44 by vertical cable net assemblies 43.
Referring to fig. 9, the cable net connecting buckle 44 of the present embodiment includes a buckle upper cover 441 and a buckle lower cover 442, wherein the buckle upper cover 441 and the buckle lower cover 442 are provided with semicircular slots for accommodating cable nets, the slots are provided with raised ribs 443 for compressing the cables 45, and the buckle lower cover 442 is provided with through holes 444 for fixing the vertical cable net assemblies 43.
Referring to fig. 10, the active lever adjusting device 11 of this embodiment includes an active lever sleeve body 111, an active tightening ring 112, an active tail cover plate 113 and an active cable mesh cover plate 114, wherein the active lever sleeve body 111 is respectively fastened to the active tightening ring 112, the active tail cover plate 113 and the active cable mesh cover plate 114, a plurality of through holes for fixing cables are respectively formed on the active lever sleeve body 111 and the active tail cover plate 113, the active tightening ring 112 and the active lever sleeve body 111 are respectively provided with a mutually engaged threaded structure and an interference fit engagement structure, at least one of the threaded structures of the active lever sleeve body 111 is provided with a slot, so that when the active tightening ring 112 and the active lever sleeve body 111 are mutually engaged, the active lever sleeve body 111 is elastically deformed, the slot is reduced, fastening is achieved, the active cable mesh cover plate 114 and the active lever sleeve body 111 are respectively provided with active semi-circular slots 115 matching the number of the hanging cables, the active cable net cover plate 114 is also provided with active threaded holes 116 which are vertical to the active semicircular grooves and are matched with the active semicircular grooves in number, and the active threaded holes are used for installing screws to adjust and press the cable net.
Referring to fig. 11, the passive rod adjusting device 22 of the present embodiment includes a passive rod sleeve body 221, a passive tightening ring 222, a passive tail cover plate 223 and a passive cable net cover plate 224, wherein the passive rod sleeve body 221 is respectively fastened to the passive tightening ring 222, the passive tail cover plate 223 and the passive cable net cover plate 224, a plurality of through holes for fixing cables are respectively formed on the passive rod sleeve body 221 and the passive tail cover plate 223, the passive tightening ring 222 and the passive rod sleeve body 221 are respectively provided with a mutually engaged threaded structure and an interference fit engagement structure, at least one slot is formed in the threaded structure of the passive rod sleeve body 221, so that when the active tightening ring 222 and the active rod sleeve body 221 are mutually engaged, the passive rod sleeve body 221 is elastically deformed, the slot is reduced, fastening is achieved, the passive cable net cover plate 224 and the passive rod sleeve body 221 are respectively provided with passive semi-circular slots 225 matching the number of the cable net, the passive cable net cover plate 224 is also provided with passive threaded holes 226 which are vertical to the passive semicircular grooves and are matched with the passive semicircular grooves in number, and the passive threaded holes are used for installing screws to adjust and press the cable net.
The active tensioned cable mesh truss structures of embodiments 1 and 2 described above both have the ability to self-adjust with precision and to self-suppress vibrations. When the structure works for a long time or the environmental temperature changes to generate mechanical relaxation and thermal deformation behaviors, so that quasi-static errors occur, the actuator 13 can adjust the control voltage according to the error magnitude and change the length of the active truss component 1, so that the self-stress state of the structure and the boundary of the cable net component are adjusted to correct the structure deformation and improve the quasi-static precision of the structure; when the structure is vibrated by the environmental interference, the actuator 13 can adjust the control voltage according to the vibration response process, so that the interior of the active truss component 1 generates a waveform for inhibiting vibration, the vibration is quickly attenuated, and the structure shape is kept in a stable state.
The foregoing description is only exemplary of the invention and is not intended to limit the invention to the particular forms disclosed, but it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an active stretch-draw cable net truss structure, includes a plurality of passive truss subassemblies (2), a plurality of cable (3), its characterized in that: the truss structure is characterized by further comprising a plurality of active truss components (1), wherein the active truss components (1) and all the passive truss components (2) are uniformly inclined at the same angle in the clockwise direction or the anticlockwise direction and are uniformly distributed in the circumferential direction, and the active truss components (1) and the passive truss components (2) are arranged in a crossed mode;
the end A and the end B of each active truss component (1) are respectively and correspondingly and fixedly connected with the end A and the end B of two adjacent passive truss components (2) through a guy cable (3) to form a plurality of closed polygons;
the A end of each active truss component (1) is fixedly connected with the B end of the next passive truss component (2) along the inclined direction through a guy cable (3);
the A end of each passive truss component (2) is fixedly connected with the B end of the next active truss component (1) along the inclined direction through a guy cable (3).
2. The structure of claim 1, wherein:
each driving truss assembly (1) comprises an upper driving support rod (12a) and a lower driving support rod (12b), an upper adapter (14a) and a lower adapter (14b), two driving rod adjusting devices (11) and an actuator (13), wherein one end of the actuator (13) is fixedly connected with one end of the upper support rod (12a) through the upper adapter (14a), and the other end of the actuator is fixedly connected with one end of the lower support rod (12b) through the lower adapter (14 b); the two active rod adjusting devices (11) are respectively connected to the other ends of the upper supporting rod (12a) and the lower supporting rod (12 b);
each passive truss component (2) comprises a passive support rod (21) and two passive rod adjusting devices (22), wherein the two passive rod adjusting devices (22) are fixedly connected to two ends of the passive support rod (21) respectively.
3. The structure of claim 2, wherein: the driving rod adjusting device (11) comprises a driving rod sleeve body (111), a driving hooping ring (112) and a driving tail cover plate (113), wherein the driving rod sleeve body (111) is respectively and tightly connected with the driving hooping ring (112) and the driving tail cover plate (113), a plurality of through holes for fixing a guy cable are formed in the driving rod sleeve body (111) and the driving tail cover plate (113), the driving hooping ring (112) and the driving rod sleeve body (111) are respectively provided with a thread structure and an engagement structure in interference fit, which are meshed with each other, at least one groove is formed in the thread structure of the driving rod sleeve body (111), so that when the driving hooping ring (112) and the driving rod sleeve body (111) are engaged with each other, the driving rod sleeve body (111) is elastically deformed, the groove is reduced, and fastening is realized.
4. The structure of claim 2, wherein: passive pole adjusting device (22), including passive pole cover body (221), passive hoop ring (222) and passive afterbody apron (223), this passive pole cover body (221) respectively with passive hoop ring (222) and passive afterbody apron (223) fastening connection, and all open the several through-hole of fixed cable on passive pole cover body (221) and the passive afterbody apron (223), passive hoop ring (222) and passive pole cover body (221) all are equipped with intermeshing's helicitic texture and interference fit's interlock structure, the helicitic texture department of passive pole cover body (221) is at least a fluting, make passive hoop ring (222) and passive pole cover body (221) when interlocking each other, passive pole cover body (221) take place elastic deformation, the fluting is reduced, realize the fastening.
5. The structure of claim 2, wherein:
all the active supporting rods (12) and all the passive supporting rods (22) are made of carbon fiber composite materials or aluminum alloy materials or titanium alloy materials;
all the inhaul cables (3) are steel wire ropes, Kevlar ropes, carbon fiber ropes or poly-fiber imine ropes.
All actuators (13) are piezoelectric ceramic actuators.
6. The utility model provides an active stretch-draw cable net truss structure, includes a plurality of passive truss subassemblies (2), a plurality of cable subassemblies (3) and cable net subassembly (4), its characterized in that: the truss structure is characterized by further comprising a plurality of active truss components (1), wherein the active truss components (1) and all the passive truss components (2) are uniformly inclined at the same angle in the clockwise direction or the anticlockwise direction and are uniformly distributed in the circumferential direction, and the active truss components (1) and the passive truss components (2) are arranged in a crossed mode;
the end A and the end B of each active truss component (1) are respectively and correspondingly and fixedly connected with the end A and the end B of two adjacent passive truss components (2) through a guy cable (3) to form a plurality of closed polygons;
the A end of each active truss component (1) is fixedly connected with the B end of the next passive truss component (2) along the inclined direction through a guy cable (3);
the A end of each passive truss component (2) is fixedly connected with the B end of the next active truss component (1) along the inclined direction through a guy cable (3);
the cable net component (4) is respectively connected with the ends A and the ends B of all the active truss components (1) and all the passive truss components (2), and the upper surface and the lower surface are respectively stretched into a curved surface.
7. The structure of claim 6, wherein: the cable net assembly (4) comprises an upper cable net assembly (41), a lower cable net assembly (42) and a plurality of vertical cable net assemblies (43), each cable net assembly comprises a plurality of sections of cables (45) and cable net connecting buckles (44), and the cables (45) are compressed through one cable net connecting buckle (44) at the staggered nodes; each boundary node of the upper cable net assembly 41 is respectively hung at the end A of the active truss assembly 1 or the passive truss assembly 2 which is closest to the node, and each boundary node of the lower cable net assembly 42 is respectively hung at the end B of the active truss assembly 1 or the passive truss assembly 2 which is closest to the node; the upper and lower cable net assemblies are connected to each other at cable net connecting buckles (44) through vertical cable net assemblies (43).
8. The structure of claim 6, wherein: the cable net connecting buckle (44) comprises a buckle upper cover (441) and a buckle lower cover (442), wherein semicircular grooves for accommodating cable nets are formed in the buckle upper cover (441) and the buckle lower cover (442), convex ribs (443) are arranged in the grooves and used for compressing the cables (45), and through holes (444) for fixing the vertical cable net components (43) are formed in the buckle lower cover (442).
9. The structure of claim 6, wherein: the driving rod adjusting device (11) comprises a driving rod sleeve body (111), a driving hooping ring (112), a driving tail cover plate (113) and a driving cable net cover plate (114), wherein the driving rod sleeve body (111) is respectively and fixedly connected with the driving hooping ring (112), the driving tail cover plate (113)) and the driving cable net cover plate (114), a plurality of through holes for fixing cables are formed in the driving rod sleeve body (111) and the driving tail cover plate (113), mutually meshed threaded structures and interference fit engagement structures are arranged on the driving hooping ring (112) and the driving rod sleeve body (111), at least one groove is formed in the threaded structure of the driving rod sleeve body (111), so that when the driving hooping ring (112) and the driving rod sleeve body (111) are mutually engaged, the driving rod sleeve body (111) is elastically deformed, the groove is reduced, fastening is realized, and driving cable net cover plate (114) and the driving rod sleeve body (111) are respectively provided with driving cable net grooves (115) matched with the number of the hitching cable net ) And active threaded holes (116) which are vertical to the active semicircular grooves and are matched with the active semicircular grooves in number are formed in the active cable net cover plate (114) and are used for installing screws to adjust and press the cable net.
10. The structure of claim 6, wherein: the passive rod adjusting device (22) comprises a passive rod sleeve body (221), a passive hooping ring (222), a passive tail cover plate (223) and a passive cable net cover plate (224), wherein the passive rod sleeve body (221) is respectively and fixedly connected with the passive hooping ring (222), the passive tail cover plate (223) and the passive cable net cover plate (224), a plurality of through holes for fixing cables are formed in the passive rod sleeve body (221) and the passive tail cover plate (223), mutually meshed threaded structures and interference fit engagement structures are arranged on the passive hooping ring (222) and the passive rod sleeve body (221), at least one groove is formed in the threaded structure of the passive rod sleeve body (221), so that when the active hooping ring (222) and the active rod sleeve body (221) are mutually engaged, the passive rod sleeve body (221) is elastically deformed, the groove is reduced, fastening is realized, and passive cable net cover plate (224) and the passive rod sleeve body (221) are respectively provided with passive grooves (225) matched with the number of hitching cable nets ) And passive threaded holes (226) which are vertical to the passive semicircular grooves and are matched with the passive semicircular grooves in number are also formed in the passive cable net cover plate (224) and are used for installing screws to adjust and press the cable net.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210024565.8A CN114197641A (en) | 2022-01-07 | 2022-01-07 | Active tensioning cable net truss structure |
| CN202210295864.5A CN114457920A (en) | 2022-01-07 | 2022-03-23 | Active stretching cable net truss structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210024565.8A CN114197641A (en) | 2022-01-07 | 2022-01-07 | Active tensioning cable net truss structure |
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| CN202210024565.8A Pending CN114197641A (en) | 2022-01-07 | 2022-01-07 | Active tensioning cable net truss structure |
| CN202210295864.5A Pending CN114457920A (en) | 2022-01-07 | 2022-03-23 | Active stretching cable net truss structure |
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| JP2533976B2 (en) * | 1991-02-22 | 1996-09-11 | 株式会社巴コーポレーション | Truss structure |
| CN101761133A (en) * | 2009-12-15 | 2010-06-30 | 河南大学 | Truss structure with self-adjusting function of disaster prevention |
| CN103790233A (en) * | 2014-01-21 | 2014-05-14 | 浙江大学 | Stretching and drawing integral structure in shape similar to frustum of regular hexagonal prism |
| CN108897239B (en) * | 2018-06-29 | 2021-03-26 | 北京控制工程研究所 | Spacecraft two-stage attitude control simulation system |
| CN109236025B (en) * | 2018-11-06 | 2023-10-13 | 郑州英格瑞膜建筑技术有限公司 | Combined steel cable net system |
| CN111395534B (en) * | 2020-03-25 | 2021-03-23 | 浙江大学 | 30-rod spherical tensioning integral movable structure |
| CN113428386A (en) * | 2021-06-30 | 2021-09-24 | 北京空间飞行器总体设计部 | On-orbit overlong truss structure deformation control device |
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2022
- 2022-01-07 CN CN202210024565.8A patent/CN114197641A/en active Pending
- 2022-03-23 CN CN202210295864.5A patent/CN114457920A/en active Pending
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| CN114457920A (en) | 2022-05-10 |
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