CN113460175B - Spine-imitating flexible automobile tail - Google Patents
Spine-imitating flexible automobile tail Download PDFInfo
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- CN113460175B CN113460175B CN202110978764.8A CN202110978764A CN113460175B CN 113460175 B CN113460175 B CN 113460175B CN 202110978764 A CN202110978764 A CN 202110978764A CN 113460175 B CN113460175 B CN 113460175B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D35/00—Vehicle bodies characterised by streamlining
- B62D35/007—Rear spoilers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/82—Elements for improving aerodynamics
Abstract
The invention is suitable for the technical field of automobile empennages, in particular to an imitation vertebra flexible joint automobile empennage, which comprises the following components: the flexible joint group is formed by connecting flexible joints contained in a plurality of sets of parallel flexible joint sleeves in a staggered manner; the driving components are respectively arranged in the flexible joints of one set of flexible joint sleeve, and each driving component is also rotationally connected with the adjacent flexible joint; the flexible joint groups are arranged in parallel through the connecting framework, and the tail wing skin covers the flexible joint groups arranged in parallel; the driving assembly is used for driving the flexible joint which is rotationally connected with the driving assembly to rotate relative to the flexible joint where the driving assembly is located so as to change the form of the flexible joint group; the flexible joints contained in different flexible joint sleeves in the flexible joint group are connected in a staggered and tight manner, and the flexible joints are forward layer by layer and do not interfere with each other, rotate smoothly and move stably under the driving of the driving assembly.
Description
Technical Field
The invention belongs to the technical field of automobile empennages, and particularly relates to an imitated vertebra flexible joint automobile empennage.
Background
As early as the 80's of the 20 th century, people began to focus on the gains that could be brought about by the use of wing camber in large civil transport vehicles. But the corresponding content can not be effectively searched in the direction of the automobile bending tail wing. The refitting of the empennage is firstly applied to racing cars, the empennage is developed from the wings, and the negative lift force/downward pressure can be generated by reversely mounting the wings of the airplane. The reasonable change of the shape of the deformed wing is long recognized at home and abroad, the aerodynamic performance control performance of the airplane can be improved, and the time and the range of the airplane are increased. According to the research on the camber-variable wing at home and abroad, a plurality of reference opinions can be obtained, and the research on the camber-variable tail wing is convenient.
The prior sports car tail fin is generally a fixed tail fin or a lifting tail fin, and the performance of the tail fin is not very good.
The bending degree is changed through a common rigid hinge framework, stress concentration is easily formed during force transmission, the framework is complex, and the smooth requirement of wing-shaped deformation cannot be met.
Disclosure of Invention
The embodiment of the invention aims to provide an artificial spine flexible joint automobile empennage, and aims to solve the problems that stress concentration is easily formed during force transmission, a framework is complex and deformation is not smooth when the existing rigid hinge framework is subjected to bending change.
The embodiment of the invention is realized in such a way that the spine-imitating flexible automobile tail wing comprises:
the flexible joint group is formed by connecting flexible joints contained in a plurality of sets of parallel flexible joint sleeves in a staggered manner;
the driving components are respectively arranged in the flexible joints of one set of flexible joint sleeve, and each driving component is also rotationally connected with the adjacent flexible joint;
the flexible joint groups are arranged in parallel through the connecting framework, and the tail wing skin covers the flexible joint groups arranged in parallel;
the driving assembly is used for driving the flexible joint which is rotatably connected with the driving assembly to rotate relative to the flexible joint where the driving assembly is located, so that the form of the flexible joint group is changed.
Further: the empennage skin is made of elastic materials.
Further: the side face of the flexible joint provided with the driving assembly is provided with a connecting part, and a bearing group which is rotatably connected with the connecting part is arranged in the flexible joint which is connected with the connecting part in a staggered manner.
Further: the connecting framework comprises a plurality of connecting rods which are arranged in parallel and are connected with the flexible joint groups, and the flexible joints contained in the flexible joint groups are provided with a plurality of through holes for the connecting rods to penetrate through.
Further: the flexible joint group comprises two sets of flexible joint sleeves, namely a positive flexible joint sleeve and a negative flexible joint sleeve, and the positive flexible joint sleeve and the negative flexible joint sleeve are arranged in parallel.
Further: the flexible joint group comprises three flexible joint sleeves, namely a set of positive flexible joint sleeve and two sets of reverse flexible joint sleeves, wherein two sides of the positive flexible joint sleeve are respectively arranged in parallel with the two sets of reverse flexible joint sleeves which are oppositely arranged.
Further: the flexible joint comprises a positive flexible joint, a negative flexible joint, a double convex flexible joint or a double concave flexible joint, the positive flexible joint is a front concave cone, and the negative flexible joint is a back concave cone.
Further: the driving assemblies are electrically connected with a controller, the controller is used for controlling the driving assemblies to drive the flexible joints connected with the driving assemblies to rotate by different angles so as to change the form of the flexible joint group, and the outer arc surfaces of the flexible joint group are always kept smooth.
The spine-imitating flexible section automobile empennage provided by the embodiment of the invention adopts a connection mode of staggered connection between flexible sections contained in different flexible section sleeves; the shapes of the flexible joints which are connected in a staggered manner are opposite, the flexible joints and the flexible joints are combined to form a spindle shape, the flexible joint group is formed by combining a plurality of spindle shapes and arranging the spindle shapes in a front-back mode, the flexible joint groups which are arranged in parallel form a basic structure of the tail wing, and the smooth structure is formed by covering the skin of the tail wing, so that the wind resistance is favorably reduced; the flexible joints contained in different flexible joint sleeves in the flexible joint group are closely connected in a staggered manner, are forward layer by layer and do not interfere with each other, smoothly rotate and stably move under the driving of the driving assembly; the driving components embedded in the flexible joint sleeve containing the driving components are uniform and are hidden in the flexible joint, so that the internal space of the flexible joint is reasonably utilized; the flexible connection mode enables the bending deformation of the empennage to run smoothly without resistance.
Drawings
FIG. 1 is a perspective view of an empennage of an imitated spinal flexible joint automobile provided by an embodiment of the invention;
FIG. 2 is a side view of an exemplary embodiment of the present invention showing an empennage of a spinal-like flexible joint;
FIG. 3 is a side view of a spindle-shaped assembly provided by an embodiment of the present invention;
FIG. 4 is a schematic perspective view of a flexible joint assembly provided by an embodiment of the present invention;
FIG. 5 is a schematic view of an assembly structure of a positive flexible joint sleeve provided by an embodiment of the present invention;
FIG. 6 is a schematic view of an assembly structure of an anti-flexible joint sleeve according to an embodiment of the present invention;
FIG. 7 is an exploded view of a positive flexible cuff provided by an embodiment of the present invention;
fig. 8 is an exploded view of an anti-compliant cuff provided in accordance with an embodiment of the present invention.
In the drawings: 100-flexible joint group, 110-positive flexible joint sleeve, 120-negative flexible joint sleeve, 1-first flexible joint, 2-second flexible joint, 3-third flexible joint, 4-fourth flexible joint, 5-fifth flexible joint, 6-sixth flexible joint, 7-seventh flexible joint, 8-eighth flexible joint, 9-ninth flexible joint, 10-tenth flexible joint, 11-driving component, 12-bearing and 13-connecting framework.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, a structural diagram of an automobile empennage with a spine-like flexible joint provided in an embodiment of the present invention is shown, where the automobile empennage with a spine-like flexible joint includes: the flexible joint group 100 is formed by connecting flexible joints contained in a plurality of sets of parallel flexible joint sleeves in a staggered manner; the driving components are respectively arranged in the flexible joints of one set of flexible joint sleeve, and each driving component is also rotationally connected with the adjacent flexible joint; the flexible joint groups 100 are arranged in parallel through the connecting framework 13, and the tail wing skin covers the flexible joint groups arranged in parallel; the driving assembly is used for driving the flexible joint which is rotationally connected with the driving assembly to rotate relative to the flexible joint where the driving assembly is located so as to change the form of the flexible joint group; so as to obtain the down force provided by the automobile tail wing and change the resistance force borne by the tail wing under different driving road conditions.
In this embodiment, as shown in fig. 1, there are five flexible joint groups 100, each of the flexible joint groups 100 includes two sets of flexible joint sleeves, each set of flexible joint sleeve includes five flexible joints, and fig. 2 is a side view thereof. As shown in figure 3, the shapes of the flexible joints which are connected in a staggered way among different flexible joint sleeves are opposite correspondingly, two flexible joint sleeves are combined in a spindle shape, and the flexible joint groups are formed by combining a plurality of spindle shapes in a front-back arrangement mode. As shown in fig. 4, the two sets of flexible joint sleeves included in the flexible joint group are respectively a positive flexible joint sleeve and a negative flexible joint sleeve, and form a quasi-symmetrical structure as a whole; five flexible joints contained in each set are spliced end to end in sequence without connection; the positive flexible joint sleeve comprises a positive flexible joint, and the negative flexible joint sleeve comprises a negative flexible joint, particularly an anterior concave type and a posterior concave type vertebral body which imitate vertebrates in nature. As shown in fig. 5, the driving assembly 11 is installed in the flexible joint of the positive flexible joint sleeve, and each output end of the driving assembly 11 is connected with the latter flexible joint in the positive flexible joint sleeve; each driving assembly is used for driving the flexible joint which is rotationally connected with the driving assembly to rotate relative to the flexible joint where the driving assembly is located so as to promote the flexible deformation of the tail wing of the flexible-section automobile and change the bending degree of the tail wing, thereby obtaining the downward pressure provided by the automobile tail wing and changing the resistance borne by the tail wing, which are required by the automobile under different driving road conditions; the driving requirements of the automobile on various road conditions are met, and the driving pleasure of the automobile is expanded. The covering empennage skin forms a whole smooth structure, and wind resistance is reduced.
As shown in fig. 4, the flexible joints contained in the flexible joint sleeve are spliced end to end in sequence without connection, so that a certain rotating gap is arranged at the splicing position between the flexible joints, and the splicing position of the flexible joints is different from the traditional hinge structure; and the flexible joint has simple structure. The flexible joints contained in different flexible joint sleeves are closely connected in a staggered manner, are forward layer by layer and do not interfere with each other, rotate smoothly, and move stably under the driving of the driving assembly; the driving components embedded in the flexible joint sleeve containing the driving components are uniform and are hidden in the flexible joint, so that the internal space of the flexible joint is reasonably utilized; the mode of staggered connection between the front flexible joint sleeve and the back flexible joint sleeve ensures that the bending deformation of the empennage is smooth and unimpeded.
When the tail wing bending device works, the driving assembly 11 drives the flexible sections to perform relative rotation movement, so that the tail wing bending degree is changed; in a certain camber variation range, the down force of the wing profile is increased along with the increase of the relative camber of the wing profile; the lift-drag ratio of the airfoil decreases along with the increase of the maximum relative camber of the airfoil; the requirement of a straight road for low resistance and the requirement of a curved road for high and low pressure are met, and the driving performance of the automobile with the spine-like flexible automobile tail fin is fully guaranteed.
In one embodiment, the driving assembly comprises a controller and an electric motor or a motor, the electric motor or the motor is electrically connected with the controller, and the controller is embedded in any flexible joint or arranged in a gap between the connecting frameworks 13; the flexible joint is used for controlling each driving component to drive the flexible joint connected with the driving component to rotate by different angles so as to change the form of the flexible joint group 100, and the outer cambered surface of the flexible joint group 100 is always kept smooth.
Specifically, the controller is electrically connected with an automobile storage battery, supplies power to the motor and controls the rotating speed of the motor; according to different driving road conditions, the automobile center console sends corresponding instructions to the controller, the controller outputs different level signals to the motor, the motor is controlled to rotate at different angles, and then the flexible joint connected with the motor is driven to rotate at different angles to change the form of the flexible joint group 100. The storage battery can be independently arranged to be used as a standby power supply to supply power to the motor, so that the safety and the stability of the automobile tail fin are improved. The controller shown may be a conventional servo motor controller or may be a programmable logic controller.
In another scenario of this embodiment, the flexible segments 100 have three or four sets, and are juxtaposed through the connecting frame 13. Each set of flexible joint set 100 comprises two sets of flexible joint sleeves, and each set of flexible joint sleeve comprises five flexible joints. As shown in fig. 4, the two sets of flexible joint sleeves included in the flexible joint group are respectively a positive flexible joint sleeve and a negative flexible joint sleeve, and form a quasi-symmetrical structure as a whole; five flexible joints contained in each set are spliced end to end in sequence without connection; the positive flexible joint sleeve comprises a positive flexible joint, and the negative flexible joint sleeve comprises a negative flexible joint, particularly an anterior concave type and a posterior concave type vertebral body which imitate vertebrates in nature. As shown in fig. 5, the driving assembly 11 is installed in the flexible joints of the positive flexible joint sleeve and drives each flexible joint to perform relative rotation movement, the number of the flexible joint groups 100 of the present embodiment may also be more than five, and when the number of the flexible joint groups 100 is large, the strength of the automobile tail is high, the support to the tail skin is stronger, the requirement is lower, but the design of the automobile light weight is not favorable.
In another scenario, the number of the flexible joints included in the flexible joint sleeve can be six or seven, the specific number can be flexibly selected according to the design requirement of the automobile tail wing, and the connection mode and the driving mode of the flexible joint sleeve are the same as the mode when the number of the flexible joints is five; and will not be described in detail herein. The bending degree of the front tail wing and the rear tail wing is changed by realizing the flexible deformation of the tail wing of the flexible section automobile, so that the down force provided by the automobile tail wing and the resistance force borne by the tail wing, which are required by automobiles under different driving road conditions, are obtained; the driving requirements of the automobile on various road conditions are met, and the driving pleasure of the automobile is expanded.
In another embodiment, in order to meet the requirement of smooth deformation of the tail wing of the automobile and reduce stress concentration, the tail wing skin is made of elastic materials, such as polyester fibers.
In another embodiment, as shown in fig. 4 to 6, the flexible joint with the driving assembly is provided with a connecting portion on a side surface thereof, and a bearing set rotatably connected with the connecting portion is installed in the flexible joint staggered with the connecting portion.
Specifically, the connecting part consists of a connecting shaft fixedly arranged on the side surface of the flexible joint containing the driving assembly; the bearing group includes a plurality of bearings 12, a plurality of bearings 12 fix side by side with in the flexible festival of connecting portion staggered connection, a plurality of bearings 12 can bear the radial load of flexible festival cover deformation in-process, make flexible festival junction be different from traditional hinge structure, be difficult for forming stress concentration.
In another embodiment, as shown in fig. 1, the connecting frame 13 includes a plurality of connecting rods arranged in parallel and connecting each flexible joint group, and the flexible joints included in the flexible joint groups are provided with a plurality of through holes for the connecting rods to pass through.
As shown in fig. 4 to 8, in a first scenario of an embodiment, the flexible joint group 100 includes two sets of the flexible joint sleeves, which are a positive flexible joint sleeve 110 and a negative flexible joint sleeve 120, respectively, and the positive flexible joint sleeve 110 and the negative flexible joint sleeve 120 are arranged in parallel and are connected in a staggered manner through a plurality of flexible joints included in the positive flexible joint sleeve and the negative flexible joint sleeve, respectively. Specifically, the positive flexible joint sleeve 110 is formed by sequentially splicing four positive flexible joints and one biconvex flexible joint end to end, and the negative flexible joint sleeve 120 is formed by sequentially splicing four negative flexible joints and one biconvex flexible joint end to end; 110-positive flexible joint sleeve, 120-negative flexible joint sleeve, wherein the four positive flexible joints are respectively a fourth flexible joint 4, a sixth flexible joint 6, an eighth flexible joint 8 and a tenth flexible joint 10 which are sequentially spliced; the four anti-flexible joints are respectively a first flexible joint 1, a third flexible joint 3, a fifth flexible joint 5 and a seventh flexible joint 7 which are sequentially spliced; the two double convex flexible joints are respectively the second flexible joint 2 in the positive flexible joint sleeve and the ninth flexible joint 9 in the negative flexible joint sleeve.
In this embodiment, as shown in fig. 4, the flexible joints in the positive flexible joint sleeve 110 and the negative flexible joint sleeve 120 are staggered and connected specifically as follows: the second flexible joint 2 in the positive flexible joint sleeve 110 is screwed with the third flexible joint 3 in the reverse flexible joint sleeve 120 through the bearing 12, the fourth flexible joint 4 is screwed with the fifth flexible joint 5 through the bearing 12, the sixth flexible joint 6 is screwed with the seventh flexible joint 7 through the bearing 12, and the eighth flexible joint 8 is screwed with the ninth flexible joint 9 through the bearing 12; the second flexible joint 2 of the positive flexible joint sleeve 110 is fixedly connected with the first flexible joint 1 of the negative flexible joint sleeve 120 through a bolt; the fourth flexible joint 4 is fixedly connected with the third flexible joint 3 through a bolt; the sixth flexible joint 6 is fixedly connected with the fifth flexible joint 5 through a bolt; the eighth flexible joint 8 is fixedly connected with the seventh flexible joint 7 through a bolt; the tenth flexible joint 10 is fixedly connected with the ninth flexible joint 9 through bolts. Overall structure is simple, and the installation degree of difficulty is low, and the mode of connecting through the bearing, can effectively avoid among the car fin camber accommodation process because the stress concentration phenomenon that the transmission arouses, still makes accommodation process more smooth and easy, also can cooperate in coordination with the flexible of fin covering, improves fin covering and flexible festival group 100's fatigue resistance ability.
In the second scenario, the flexible joint group 100 includes three flexible joint sleeves, which are a set of positive flexible joint sleeve and two sets of reverse flexible joint sleeves, respectively, the positive flexible joint sleeve is sandwiched between the two sets of reverse flexible joint sleeves, and two sides of a flexible joint included in the positive flexible joint sleeve are respectively connected with flexible joints included in the two sets of reverse flexible joint sleeves arranged oppositely in a staggered manner. Compared with two sets of flexible joint groups 100, the flexible joint group 100 formed by three sets of flexible joint sleeves has higher stability, but is more complex to install; the connection mode of the positive flexible sleeve and the negative flexible sleeve is the same as that of the positive flexible sleeve and the negative flexible sleeve in the first scene, and the description is omitted here.
In a third scenario, the flexible segments include a positive flexible segment, a negative flexible segment, a double-convex flexible segment or a double-concave flexible segment, the positive flexible segment is a front concave cone, and the negative flexible segment is a back concave cone; the flexible joint in the middle of the flexible joint sleeve can adopt a biconvex flexible joint or a biconcave flexible joint, and the head and tail flexible joints can also adopt biconvex flexible joints or positive and negative flexible joints.
As mentioned above, the flexible segments in the positive flexible sleeve and the negative flexible sleeve are connected in an interlaced manner, including but not limited to the embodiment of the present embodiment; the smooth change of the automobile tail wing form and the dispersion of the transmission stress can be realized by adopting a structure similar to a positive flexible joint, a negative flexible joint, a double-convex flexible joint or a double-concave flexible joint.
In another embodiment, based on the spine-imitated flexible section automobile empennage, a vehicle is provided, wherein the vehicle comprises the spine-imitated flexible section automobile empennage, and flexible sections contained in different flexible section sleeves in a flexible section group are connected in a staggered manner; the shapes of the flexible joints which are connected in a staggered mode are opposite correspondingly, the flexible joints and the flexible joints are combined to form a spindle shape, the flexible joint group is formed by combining a plurality of spindle shapes and arranging the spindle shapes in a front-back mode, the flexible joint groups which are arranged in parallel form a basic structure of the empennage, the empennage skin is covered to form a whole smooth structure, and wind resistance is reduced; the flexible joints contained in different flexible joint sleeves in the flexible joint group are closely connected in a staggered manner, are forward layer by layer and do not interfere with each other, rotate smoothly and move stably under the driving of the driving assembly; the driving components embedded in the flexible joint sleeve containing the driving components are uniform and are hidden in the flexible joint, so that the internal space of the flexible joint is reasonably utilized; the flexible connection mode enables the bending deformation of the empennage to run smoothly without resistance.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. Imitative flexible festival car fin of vertebra, its characterized in that, imitative flexible festival car fin of vertebra includes:
the flexible joint group is formed by connecting flexible joints contained in a plurality of sets of parallel flexible joint sleeves in a staggered manner;
the driving components are respectively arranged in the flexible joints of one set of flexible joint sleeve, and each driving component is also rotationally connected with the adjacent flexible joint;
the flexible joint groups are arranged in parallel through the connecting framework, and the tail wing skin covers the flexible joint groups arranged in parallel;
the driving assembly is used for driving the flexible joint which is rotatably connected with the driving assembly to rotate relative to the flexible joint where the driving assembly is located, so that the form of the flexible joint group is changed.
2. The simulated spinal flexible pitch automobile empennage of claim 1 wherein the empennage skin is of a resilient material.
3. The spine-imitating flexible joint automobile empennage as claimed in claim 1 or 2, wherein the side surface of the flexible joint provided with the driving assembly is provided with a connecting part, and a bearing set which is rotatably connected with the connecting part is arranged in the flexible joint which is staggered with the connecting part.
4. The spine-like flexible joint automobile empennage as claimed in claim 1, wherein the connecting framework comprises a plurality of connecting rods which are arranged in parallel and are connected with the flexible joint groups, and the flexible joints contained in the flexible joint groups are provided with a plurality of through holes for the connecting rods to penetrate through.
5. The spine-like flexible automobile empennage as claimed in claim 1, wherein the flexible joint group comprises two sets of the flexible joint sleeves, namely a positive flexible joint sleeve and a negative flexible joint sleeve, and the positive flexible joint sleeve and the negative flexible joint sleeve are arranged in parallel.
6. The spine-like flexible automobile empennage according to claim 1, wherein the flexible joint group comprises three sets of flexible joint sleeves, namely a set of positive flexible joint sleeve and two sets of reverse flexible joint sleeves, and two sides of the positive flexible joint sleeve are respectively arranged in parallel with the two sets of reverse flexible joint sleeves which are oppositely arranged.
7. The simulated spinal flexible joint automobile empennage as claimed in claim 1, wherein the flexible joint comprises a forward flexible joint, a backward flexible joint, a biconvex flexible joint or a biconcave flexible joint, the forward flexible joint is a forward concave cone, and the backward flexible joint is a backward concave cone.
8. The spine-like flexible joint automobile empennage as claimed in claim 1, wherein the driving components are electrically connected with a controller, the controller is used for controlling each driving component to drive the flexible joint which is rotationally connected with the driving component to rotate by different angles so as to change the shape of the flexible joint group, and the outer cambered surface of the flexible joint group is always kept smooth.
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| CN202110978764.8A CN113460175B (en) | 2021-08-25 | 2021-08-25 | Spine-imitating flexible automobile tail |
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