CN107902069B - Single-drive multi-stage linkage bionic variant aircraft nose cone device - Google Patents
Single-drive multi-stage linkage bionic variant aircraft nose cone device Download PDFInfo
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- CN107902069B CN107902069B CN201711064473.8A CN201711064473A CN107902069B CN 107902069 B CN107902069 B CN 107902069B CN 201711064473 A CN201711064473 A CN 201711064473A CN 107902069 B CN107902069 B CN 107902069B
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- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
Abstract
The invention provides a single-drive multistage-linkage bionic variant aircraft nose cone which comprises a five-stage nose cone shell, an integral transmission device, an interstage deformation device and an interstage connection device, wherein the size of the five-stage nose cone shell is reduced along with the increase of the stage number, the integral transmission device comprises a stepping motor, a five-stage screw and an interstage universal joint, the interstage deformation device mainly comprises a screw nut, an L-shaped sliding groove, an upper sliding block, a straight sliding groove and a lower sliding block, the screw rotates to drive the nut to move, and then a connecting rod drives the upper sliding block to move in the L-shaped sliding groove to achieve stretching and bending, and the interstage connection device moves a roller on the outer side of the lower stage nose cone shell in the sliding groove on the inner side of the upper stage nose cone shell to achieve connection of adjacent nose cones.
Description
Technical Field
The invention relates to the technical field of variant aircraft design and aerospace, in particular to a bionic variant aircraft nose cone device with single drive and multi-stage linkage.
Background
With the development of economy and society, the application of aircrafts is more and more popular. The variant aircraft is an aircraft capable of automatically changing the aerodynamic shape in the flight process, originally originates from the field of bionic design, and has extremely important application in the aerospace flight environment. For decades, the variant vehicles have been developed in great length, and their combination with bionics also exhibit vigorous vitality. The existing variant aircraft can be mainly classified as follows: variable spanwise wing aircraft, variable swept wing aircraft, variable chord wing aircraft, twisted wing aircraft, spanwise curved wing aircraft, and variable airfoil aircraft. However, most of the existing variant aircraft design schemes are designed for the wing change of the aircraft, few and few variant design schemes are designed for the nose cone change, and the existing nose cone devices have the problems or defects of tedious driving, complex deformation and low reliability of unfolding.
Accordingly, there is a need for a single-drive, multi-stage linkage, biomimetic variant aircraft nose cone apparatus that overcomes, or at least alleviates, the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides a single-drive multi-stage linkage bionic variant aircraft nose cone device by combining the research on the bee abdominal deformation. The design comprises a five-stage nose cone, an integral transmission device, an interstage deformation device and an interstage connecting device, can realize the stretching and bending motion of the nose cone in the flying process of the morphing aircraft, and has the advantages of simple driving, easy deformation and high reliability of expansion.
In order to achieve the above object, the present invention provides a biomimetic variant aircraft nose cone device with single-drive multi-stage linkage, comprising: the device comprises a nose cone shell, an interstage deformation device, an interstage connection device and an integral transmission device;
the head cone shell is divided into five-stage head cones which are all structures imitating the abdomen of the bee; the first-stage nose cone is the rear end and has the largest diameter; the fifth-stage nose cone is the front end and is used as a cone top-shaped shell to form the cone top of the aircraft nose cone; the second-stage nose cone, the third-stage nose cone and the fourth-stage nose cone are arranged between the first-stage nose cone and the fifth-stage nose cone, are sequentially arranged along the direction from back to front and are sequentially decreased in diameter; each stage of nose cone of the nose cone shell is penetrated by the integral transmission device, and adjacent two stages of nose cones are connected by the interstage deformation device and the interstage connection device, so that the axial extension and the up-and-down bending of each stage of nose cone are respectively realized, and the whole body of the aircraft nose cone is jointly formed;
the integral transmission includes: the device comprises a stepping motor, a five-stage screw, a five-stage bearing seat and a four-stage universal joint; each level of screw rod in the five-level screw rod is arranged in a mode that one end is fixed and the other end moves, each level of screw rod is supported by a bearing seat of a corresponding level in the five-level bearing seat respectively, and each level of bearing seat is fixedly connected with a head cone of the corresponding level through a support respectively; the stepping motor is connected with one end of the first-stage screw and drives the first-stage screw to rotate; a first-stage universal joint is arranged between two adjacent stages of screw rods, and the previous-stage screw rod drives the next-stage screw rod to rotate through the universal joint, so that the linkage of the five-stage screw rods is realized;
the interstage deformation device comprises a nut, a connecting plate, a connecting rod, an upper sliding block, a lower sliding block, a vertical rod upper base, a small roller, an L-shaped sliding groove, a straight sliding groove, a cross rod, a cylindrical groove and a bearing, wherein the nut is driven by a screw rod and is positioned in the middle, the left end and the right end of the nut are respectively connected with the connecting plate;
the interstage connection device comprises: the roller and the sliding groove are connected by rotating or translating the roller at the outer side of the lower-stage nose cone in the sliding groove at the inner side of the upper-stage nose cone.
Preferably, the inner ring of the corresponding bearing on the screw is positioned and fixed by the elastic retainer ring and the sleeve at the left end of each stage of screw, and the outer ring of the corresponding bearing on the screw is positioned and fixed by the end cover and the inner bulge of the bearing block; an output shaft of the stepping motor is connected with the first-stage screw through a coupler and a flat key to transmit motion; a universal joint for between the adjacent two-stage screw rod is two ball pair structures, and the lantern ring at universal joint both ends links to each other with the tip of adjacent two-stage screw rod with interference fit.
Preferably, the interstage deformation devices are two groups of devices which are mirror-symmetric relative to the motion symmetric plane of each stage of nose cone, the two groups of interstage deformation devices enable the nut to only translate but not rotate in the process of moving on the screw rod, the stability of deformation of the adjacent two stages of nose cones is ensured, threads on the screw rod are self-locking threads to prevent instability in the process of deformation of each stage of nose cone, two opposite planes of the upper sliding block are respectively provided with a through round hole, one round hole penetrates through the vertical rod, the lower portion of the vertical rod is connected with the lower sliding block, the upper portion of the vertical rod is connected with the upper sliding block, the lower sliding block is limited in the straight sliding groove to ensure that the corresponding upper sliding block only translates but not rotates, the stability of motion of the adjacent two stages of nose cones is ensured, the other round hole penetrates through the cross rod, the outer end of the cross rod is respectively provided with a bearing, the bearing directly forms a rotating pair with the sliding groove on the inner side of the next stage of the nose cone through the columnar groove, the inner end of the cross rod is fixedly connected with the inner end of the other cross rod in a bolt-nut mode.
Preferably, between two adjacent nose cones, two cylindrical convex rollers which are symmetrical about a motion central plane are arranged on the outer side of the nose cone of the next stage, and can rotate or move in a sliding groove on the inner side of the nose cone of the previous stage in a translation mode to realize connection between the two adjacent nose cones.
Preferably, between two adjacent nose cones, the next nose cone provides driven motion for the previous nose cone through the matching of the cylindrical raised roller and the sliding groove, and the next nose cone provides driving motion for the previous nose cone along with the motion of the upper sliding block in the L-shaped sliding groove.
Preferably, when the nut translates forwards from the rear end limit position, the upper sliding block of the interstage deformation device of the stage nose cone translates radially firstly, the lower stage nose cone rotates and bends relative to the upper stage nose cone, and therefore the whole nose cone shell bends, and when the upper sliding block of the interstage deformation device of the stage nose cone translates axially after passing through the corner of the L-shaped sliding groove, the lower stage nose cone translates relative to the upper stage nose cone, and therefore the whole nose cone shell stretches.
Preferably, the screw rods of each stage rotate to drive corresponding nuts to translate, and the connecting plate, the connecting rod, the upper sliding block, the lower sliding block, the vertical rod, the upper base of the vertical rod, the L-shaped sliding groove, the straight sliding groove, the cross rod, the columnar groove and the bearing of each stage of the interstage deformation device are all provided with two.
The invention has the technical effects that:
the invention provides a single-drive multi-stage linkage bionic morphing aircraft nose cone device which has the function of realizing the bending and stretching movement of a morphing aircraft nose cone by utilizing the bending and stretching characteristics of the belly of a bee and imitating the basic structure of the bee, so as to adapt to morphing requirements of the morphing aircraft under special conditions. The device can be used for solving the problems of complicated driving and low unfolding reliability of the existing nose cone device, and has the advantages of high unfolding reliability and simple and convenient driving.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a single-drive multi-stage linkage bionic variant aircraft nose cone device;
FIG. 2 is a schematic diagram of the structure of adjacent stages of the single-drive multi-stage linkage bionic variant aircraft nose cone device of the application;
FIG. 3 is a partial schematic view of the overall transmission of the single drive multi-stage linkage biomimetic variant aircraft nose cone device of the present application;
FIG. 4 is a schematic view of an interstage deformation device of the single-drive multi-stage linkage bionic variant aircraft nose cone device of the application;
FIG. 5 is a schematic view of the interstage connection device of the single-drive multi-stage linkage bionic variant aircraft nose cone device.
The numbers in the figures are as follows:
1. a nose cone shell: 1a first-stage nose cone shell and 1b a fifth-stage nose cone shell;
2. the integral transmission device comprises: 2a, a stepping motor, 2b a screw rod, 2c a bearing seat and 2d a universal joint;
3. the interstage deformation device comprises a nut 3a, a connecting plate 3b, a connecting rod 3c, an upper sliding block 3d, a lower sliding block 3e, a vertical rod 3f, an upper base of the vertical rod 3g, a small roller 3h, a sliding chute 3i L, a straight sliding chute 3j, a cross bar 3k, a cylindrical groove 3l and a bearing 3 m;
4. the interstage connection device: 4a rollers, 4b runners.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments and the directional terms described below with reference to the drawings are exemplary and intended to be used in the explanation of the invention, and should not be construed as limiting the invention. 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. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In one broad embodiment of the invention, a single drive multi-stage linkage biomimetic variant aircraft nose cone apparatus comprises: the device comprises a nose cone shell, an interstage deformation device, an interstage connection device and an integral transmission device;
the head cone shell is divided into five-stage head cones which are all structures imitating the abdomen of the bee; the first-stage nose cone is the rear end and has the largest diameter; the fifth-stage nose cone is the front end and is used as a cone top-shaped shell to form the cone top of the aircraft nose cone; the second-stage nose cone, the third-stage nose cone and the fourth-stage nose cone are arranged between the first-stage nose cone and the fifth-stage nose cone, are sequentially arranged along the direction from back to front and are sequentially decreased in diameter; each stage of nose cone of the nose cone shell is penetrated by the integral transmission device, and adjacent two stages of nose cones are connected by the interstage deformation device and the interstage connection device, so that the axial extension and the up-and-down bending of each stage of nose cone are respectively realized, and the whole body of the aircraft nose cone is jointly formed;
the integral transmission includes: the device comprises a stepping motor, a five-stage screw, a five-stage bearing seat and a four-stage universal joint; each level of screw rod in the five-level screw rod is arranged in a mode that one end is fixed and the other end moves, each level of screw rod is supported by a bearing seat of a corresponding level in the five-level bearing seat respectively, and each level of bearing seat is fixedly connected with a head cone of the corresponding level through a support respectively; the stepping motor is connected with one end of the first-stage screw and drives the first-stage screw to rotate; a first-stage universal joint is arranged between two adjacent stages of screw rods, and the previous-stage screw rod drives the next-stage screw rod to rotate through the universal joint, so that the linkage of the five-stage screw rods is realized;
the interstage deformation device comprises a nut, a connecting plate, a connecting rod, an upper sliding block, a lower sliding block, a vertical rod upper base, a small roller, an L-shaped sliding groove, a straight sliding groove, a cross rod, a cylindrical groove and a bearing, wherein the nut is driven by a screw rod and is positioned in the middle, the left end and the right end of the nut are respectively connected with the connecting plate;
the interstage connection device comprises: the roller and the sliding groove are connected by rotating or translating the roller at the outer side of the lower-stage nose cone in the sliding groove at the inner side of the upper-stage nose cone.
The invention has the function of realizing the bending and stretching movement of the nose cone of the morphing aircraft by utilizing the bending and stretching characteristics of the belly of the bee and imitating the basic structure of the bee so as to adapt to the morphing requirements of the morphing aircraft under special conditions. The device can be used for solving the problems of complicated driving and low unfolding reliability of the existing nose cone device, and has the advantages of high unfolding reliability and simple and convenient driving.
The invention provides a bionic variant aircraft nose cone device with single-drive multi-stage linkage, and the specific implementation mode of the invention is further described with reference to the accompanying drawings 1-5.
Fig. 1 is a schematic overall structure diagram of a single-drive multi-stage linkage bionic variant aircraft nose cone device. The nose cone device comprises a nose cone shell 1, an integral transmission device 2, an interstage deformation device 3 and an interstage connecting device 4. The head cone shell 1 is divided into 5 stages, the first-stage head cone shell link 1a is used as the rear part, the diameter is maximum, and the diameter is decreased from the rear part to the front part. The interstage deformation device 3 comprises thirteen parts, and the interstage connecting device 4 comprises two parts, and the three parts are respectively arranged between two adjacent stage of nose cone shells. The whole transmission device 2 penetrates through the five-stage nose cone and is fixedly connected with the nose cone shells of all stages by the bearing seat for fixing.
Fig. 2 is a schematic diagram of the structure of the adjacent stages of the bionic variant aircraft nose cone device with single-drive multi-stage linkage. The shaft bearing seat 2c and the screw rod 2b are coaxial with the corresponding-stage head cone shell and are fixedly connected to the head cone shell through a support (the support is not shown); the nut 3a moves on the screw 2b and realizes the deformation of the head cone shell of the next stage relative to the next stage through the cooperation of the interstage deformation device 3 and the interstage connecting device 4.
FIG. 3 is a partial schematic view of the overall transmission of the single-drive multi-stage linkage bionic variant aircraft nose cone device of the application. The screw rod 2b in the shaft system is driven by the motor 2a to rotate, the screw rod 2b is connected with the screw rod 2b corresponding to the next-stage nose cone through the universal joint 2d, and the rotation is transmitted step by step so as to realize the linkage between the whole five-stage nose cones.
Fig. 4 is a schematic view of an interstage deformation device of the single-drive multistage-linkage bionic variant aircraft nose cone device, a nut 3a is connected with a connecting plate 3b, the connecting plate 3b and a connecting rod 3c form a revolute pair, the connecting rod 3c also translates and rotates along with the movement of the nut 3a along a screw rod 2b, the other end of the connecting rod 3c is connected with an upper sliding block 3d to drive the upper sliding block 3d to move in a L-shaped sliding groove 3i, the upper sliding block 3d is connected with a lower sliding block 3e through a vertical rod 3f, the lower sliding block 3e is limited to translate in a straight sliding groove 3j, so that the movement of the upper sliding block 3d is limited to only do translation movement, the upper end of the vertical rod 3f is provided with an upper base 3g, the upper surface of the upper base 3g of the vertical rod is provided with 2 x 3 arranged small rollers 3h for reducing the friction of the axial translation of the upper sliding block 3d and the vertical rod 3f along the sliding groove, the two upper sliding blocks 3d which are axially symmetrical by bolts 3k, and can pass through two cylindrical cross rods 3k and can be matched with a lower cross rod l through a one-stage cone bearing, and the nut 3c and can be matched with a lower cross rod which can rotate relative to the inner side of a first-stage cone.
FIG. 5 is a schematic view of the interstage connection device of the single-drive multi-stage linkage bionic variant aircraft nose cone device. The inner side of the upper-stage head cone shell is provided with a sliding groove 4b, and a roller 4a on the outer side of the lower-stage head cone shell can freely move in the sliding groove. Thereby two adjacent head cone shells are connected.
The motion form and the corresponding deformation process of the bionic variant aircraft nose cone device with single-drive multi-stage linkage are specifically described below.
A bionic variant aircraft nose cone device with single-drive multi-stage linkage mainly adopts the motion mode of simulating the motion of a bee belly to realize stretching and downward bending motion, interstage deformation is realized by the coordination of an interstage deformation device and an interstage connecting device, and multi-stage linkage and integral deformation are realized by an integral transmission device.
The interstage deforming device 3 and the interstage connecting device 4 can achieve bending and telescopic deforming movement of the interstage, along with rotation of the screw 2b, the nut 3a and the connecting plate 3b translate along the axial direction to drive the connecting rod 3c to move, the connecting rod 3c drives the upper sliding block 3d to move in the L-shaped sliding groove 3i, due to the fact that the vertical rod 3f, the upper sliding block 3d and the lower sliding block 3e move in a consistent mode, and the lower sliding block 3e is limited to translate in the straight sliding groove 3j, the upper sliding block 3d can only translate in the L-shaped sliding groove 3i, the two upper sliding blocks 3d penetrate through the cross rod 3k, the outer end of the cross rod 3k serves as a shaft and is supported by the bearing 3m to form a rotation pair with the cylindrical groove 3l in the lower stage head cone, translation of the upper sliding block 3d can be converted into translation of one point on the lower stage head cone shell, due to the axial symmetry of the structure, the deforming device 3 provides movement of one line on the upper line of the lower stage head cone, when the upper sliding block 3d and the upper sliding groove 3d move along the axial direction, the axial direction of the upper sliding groove 3b, the upper sliding block 3d, the roller of the upper sliding groove 3b and the upper sliding cone 3d, the roller of the upper sliding groove 3b, the upper sliding block 3b can achieve axial direction, the translation of the interstage cone 3b, the translation of the roller, the roller of the roller 3b, the roller of the roller, the upper sliding block 3b, the roller of the upper sliding.
The linkage deformation of the whole nose cone can be realized through the integral transmission device. The first-stage screw rod is driven to rotate by the stepping motor 2a, so that the deformation between the front two-stage nose cones is realized; rotation is transmitted between the screw rods through the universal joints, linkage deformation is carried out between all levels, and integral deformation is achieved.
A bionic variant aircraft nose cone device with single-drive multi-stage linkage simulates bees to perform telescopic motion and downward bending motion, is simple in drive, realizes the bending and telescopic motion of a nose cone sequentially under the control of single drive, and meets the requirement of an air-conditioning variant aircraft on the deformation of the nose cone. The deformation condition of the nose cone can be accurately controlled through a driving source, the displacement and the pose of the nose cone can be uniquely and accurately determined, and the deformation reliability of the nose cone is also ensured. A bionic variant aircraft nose cone device with single-drive multi-stage linkage has the advantages of simple unfolding drive and high reliability.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A bionic variant aircraft nose cone device with single drive and multi-stage linkage is characterized by comprising a nose cone shell, an interstage deformation device, an interstage connection device and an integral transmission device;
the head cone shell is divided into five-stage head cones which are all structures imitating the abdomen of the bee; the first-stage nose cone is the rear end and has the largest diameter; the fifth-stage nose cone is the front end and is used as a cone top-shaped shell to form the cone top of the aircraft nose cone; the second-stage nose cone, the third-stage nose cone and the fourth-stage nose cone are arranged between the first-stage nose cone and the fifth-stage nose cone, are sequentially arranged along the direction from back to front and are sequentially decreased in diameter; each stage of nose cone of the nose cone shell is penetrated by the integral transmission device, and adjacent two stages of nose cones are connected by the interstage deformation device and the interstage connection device, so that the axial extension and the up-and-down bending of each stage of nose cone are respectively realized, and the whole body of the aircraft nose cone is jointly formed;
the integral transmission includes: the device comprises a stepping motor, a five-stage screw, a five-stage bearing seat and a four-stage universal joint; each level of screw rod in the five-level screw rod is arranged in a mode that one end is fixed and the other end moves, each level of screw rod is supported by a bearing seat of a corresponding level in the five-level bearing seat respectively, and each level of bearing seat is fixedly connected with a head cone of the corresponding level through a support respectively; the stepping motor is connected with one end of the first-stage screw and drives the first-stage screw to rotate; a first-stage universal joint is arranged between two adjacent stages of screw rods, and the previous-stage screw rod drives the next-stage screw rod to rotate through the universal joint, so that the linkage of the five-stage screw rods is realized;
the interstage deformation device comprises a nut, a connecting plate, a connecting rod, an upper sliding block, a lower sliding block, a vertical rod upper base, a small roller, an L-shaped sliding groove, a straight sliding groove, a cross rod, a cylindrical groove and a bearing, wherein the nut is driven by a screw rod and is positioned in the middle, the left end and the right end of the nut are respectively connected with the connecting plate;
the interstage connection device comprises: the roller and the sliding groove are connected by rotating or translating the roller at the outer side of the lower-stage nose cone in the sliding groove at the inner side of the upper-stage nose cone.
2. The single-drive multi-stage linkage bionic variant aircraft nose cone device according to claim 1, characterized in that: the left end of each screw rod is used for positioning and fixing the inner ring of the corresponding bearing on the screw rod by an elastic retainer ring and a sleeve, and the outer ring of the corresponding bearing on the screw rod is positioned and fixed by an end cover and an inner bulge of a bearing seat; an output shaft of the stepping motor is connected with the first-stage screw through a coupler and a flat key to transmit motion; a universal joint for between the adjacent two-stage screw rod is two ball pair structures, and the lantern ring at universal joint both ends links to each other with the tip of adjacent two-stage screw rod with interference fit.
3. The single-drive multistage-linkage bionic morphing aircraft nose cone device as claimed in claim 2, wherein the interstage morphing devices are two groups of devices which are mirror-symmetric relative to the motion symmetric plane of each stage of nose cone, the two groups of interstage morphing devices enable the nut to only translate but not rotate in the process of moving on the screw rod, so as to ensure the stability of the deformation of the adjacent two stages of nose cone, the screw thread on the screw rod is a self-locking screw thread to prevent the instability in the deformation process of each stage of nose cone, two opposite planes of the upper sliding block are respectively provided with a through circular hole, one circular hole penetrates through the vertical rod, the lower sliding block is connected to the lower part of the vertical rod, the upper part of the vertical rod is connected with the upper sliding block, the lower sliding block is limited in the straight sliding chute, so as to ensure the stability of the motion of the adjacent two stages of nose cone, the other circular hole penetrates through the cross rod, the outer end of the cross rod is respectively provided with a bearing, the bearing is directly connected with the sliding chute on the inner side of the lower stage of the nose cone through the cylindrical groove, the inner end of the cross rod is fixedly connected with the inner end of the corresponding cross rod in.
4. The single-drive multi-stage linkage biomimetic variant aircraft nose cone device according to claim 3, characterized in that: between two adjacent head cones, two cylindrical raised rollers which are symmetrical about a motion central plane are arranged on the outer side of the head cone of the next stage, and can rotate or move in a sliding groove on the inner side of the head cone of the previous stage in a translation manner, so that the connection between the two adjacent head cones is realized.
5. The single-drive multi-stage linkage bionic variant aircraft nose cone device as claimed in claim 4, wherein between two adjacent nose cones, the next nose cone provides driven motion for the previous nose cone through the matching of a cylindrical raised roller and a sliding groove, and the next nose cone provides driving motion for the previous nose cone along with the motion of an upper sliding block in an L-shaped sliding groove.
6. The single-drive multistage-linkage bionic variant aircraft nose cone device as claimed in claim 5, wherein when the nut translates forwards from the rear end limit position, the upper sliding block of the interstage deformation device of the adjacent two-stage nose cone translates radially firstly, the lower stage nose cone rotates and bends relative to the upper stage nose cone at the moment, so that the whole nose cone shell bends, and when the upper sliding block of the interstage deformation device of the adjacent two-stage nose cone translates axially after passing through a corner of the L-shaped sliding groove, the lower stage nose cone translates relative to the upper stage nose cone, so that the whole nose cone shell extends.
7. The single-drive multi-stage linkage bionic morphing aircraft nose cone device according to claim 6, wherein each stage of screw rod rotates to drive the corresponding nut to translate, and two connecting plates, connecting rods, upper sliding blocks, lower sliding blocks, vertical rods, vertical rod upper bases, L-shaped sliding grooves, straight sliding grooves, transverse rods, columnar grooves and bearings are arranged on each stage of interstage morphing device.
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| CN201711064473.8A CN107902069B (en) | 2017-11-02 | 2017-11-02 | Single-drive multi-stage linkage bionic variant aircraft nose cone device |
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| CN201711064473.8A CN107902069B (en) | 2017-11-02 | 2017-11-02 | Single-drive multi-stage linkage bionic variant aircraft nose cone device |
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| CN108910011B (en) * | 2018-05-08 | 2020-11-13 | 清华大学 | Space-expandable aircraft deformation nose cone with embedded segmented shell |
| CN111846286B (en) * | 2020-08-04 | 2022-03-01 | 北京理工大学 | Multi-stage driving connecting rod type head cone variant mechanism |
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| CN106275368B (en) * | 2016-10-28 | 2018-05-29 | 清华大学 | A kind of bionic Aircraft based on marmem driving deforms nose cone device |
| CN106741822B (en) * | 2016-11-04 | 2019-07-26 | 清华大学 | Aircraft containing parallel institution deforms nose cone |
| CN106828862B (en) * | 2017-01-12 | 2019-08-16 | 清华大学 | It is a kind of that nose cone device is deformed by motor and the aircraft of hydraulic combined driving |
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