CN213083486U - Transmission and aircraft - Google Patents

Abstract

The utility model relates to an aircraft technical field especially relates to a transmission and aircraft. The utility model provides a transmission includes support, drive assembly and installation component, and wherein, the support is connected with perpendicular fin, and drive assembly includes drive division and pivot, and the drive division is fixed on the support, and the relative leg joint of pivot can be driven to the drive division rotates, and installation component is connected with the pivot transmission, and the rudder is installed on installation component. Compared with the traditional transmission device of the steel cable and the roller group, the transmission device has the advantages of simple and exquisite structure, high transmission precision, high reliability and difficult clamping stagnation. The utility model discloses aircraft, through using above-mentioned transmission, simple structure is exquisite, transmission precision is high, the reliability is high, difficult emergence jamming phenomenon and security performance are high.

Description

Transmission and aircraft

Technical Field

The utility model relates to an aircraft technical field especially relates to a transmission and aircraft.

Background

The rudder is a movable airfoil part on a vertical tail wing of an aircraft and is used for realizing the course control of the aircraft and correcting the course and small-angle steering of the aircraft, and the traditional aircraft adopts a transmission device of a steel cable and a roller train to realize the control of the rudder.

The complex steel cable and roller group are arranged between the pilot cab and the rudder, and the transmission device of the steel cable and the roller group has long transmission line, and has many related parts, thereby causing large transmission error and small transmission precision. In addition, the steel cable can be subject to thermal contraction with different degrees under different temperature and climate conditions, so that the transmission device can be stuck, the roller can be subjected to position change and abrasion in long-term use, the transmission device can be stuck, the sticking phenomenon can cause fatal consequences on the control of the rudder, and even cause the death of people and people.

Therefore, the invention is needed to provide a transmission device and an aircraft, so as to solve the problems of more parts, complex structure, large transmission error, easy occurrence of jamming phenomenon and low safety performance of the aircraft.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a transmission, this transmission simple structure is exquisite, transmission precision is high, the reliability is high and difficult emergence jamming phenomenon.

Another object of the utility model is to provide an aircraft, simple structure is exquisite, transmission precision is high, the reliability is high, difficult emergence jamming phenomenon and security performance are high.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a transmission, comprising:

the bracket is used for being connected with the vertical tail wing;

the driving assembly comprises a driving part and a rotating shaft, the driving part is fixed on the bracket, and the driving part can drive the rotating shaft to rotate relative to the bracket; and

and the mounting assembly is in transmission connection with the rotating shaft and is used for mounting a rudder.

Preferably, the driving assembly further comprises a mounting flange, the mounting flange is arranged above the driving portion, the bracket is arranged on the upper surface of the mounting flange, and the bracket and the mounting flange are fixed through a plurality of first fixing pieces.

Preferably, a plurality of the first fixing pieces are uniformly distributed along the circumferential direction of the mounting flange.

Preferably, the bracket is shaped like "Contraband", the bracket includes a first plate, a second plate and a third plate connected in sequence, the mounting flange is fixed to the second plate, and the driving part and the mounting flange are located in a space formed by the first plate, the second plate and the third plate.

Preferably, the driving assembly further comprises a limiting part, the limiting part is arranged on the mounting flange, a limiting hole matched with the limiting part in shape and size of the periphery is formed in the support, and the limiting part is inserted into the limiting hole.

Preferably, the mounting flange, spacing portion and the coaxial setting of pivot, the pivot stretches out in proper order the mounting flange spacing portion with the installation component transmission is connected.

Preferably, the mounting assembly comprises a transmission part, the transmission part is provided with an insertion hole, an internal spline is arranged inside the insertion hole, an external spline matched with the internal spline is arranged on the periphery of the rotating shaft extending out of the limiting part, and the external spline is inserted into the internal spline.

Preferably, the mounting assembly further comprises a second fixing piece, and the rotating shaft extending out of the limiting part is fixed with the transmission part through the second fixing piece.

Preferably, the installation component still includes the installation department, the installation department includes mounting panel, adjusting block and third mounting, the mounting panel with the transmission is connected mutually, place in proper order on the mounting panel the adjusting block with the rudder, the third mounting will the mounting panel the adjusting block with the rudder is fixed, the thickness of adjusting block is adjustable.

An aircraft comprising a transmission as described above.

The utility model has the advantages that:

the utility model provides a transmission includes support, drive assembly and installation component, and the support is connected with perpendicular fin, and drive assembly includes drive division and pivot, and the drive division is fixed on the support, and the relative leg joint of pivot can be driven to the drive division, and the installation component is connected with the pivot transmission, and the rudder is installed on the installation component. Compared with the traditional transmission device of the steel cable and the roller group, the transmission device has the advantages of simple and exquisite structure, high transmission precision, high reliability and difficult clamping stagnation.

The utility model discloses an aircraft, through using above-mentioned transmission, simple structure is exquisite, transmission precision is high, the reliability is high, difficult emergence jamming phenomenon and security performance are high.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an aircraft provided in accordance with a first embodiment;

FIG. 2 is a schematic view showing the connection of the vertical tail, the transmission and the rudder according to the first embodiment;

FIG. 3 is a schematic structural diagram of a transmission according to an embodiment;

FIG. 4 is a schematic structural diagram of a driving assembly according to an embodiment;

FIG. 5 is a schematic structural diagram of a bracket according to a first embodiment;

FIG. 6 is a schematic structural diagram of a mounting assembly provided in accordance with an embodiment;

FIG. 7 is a schematic view showing the connection of the vertical rear wing, the transmission and the rudder according to the second embodiment;

fig. 8 is a partial enlarged view at a in fig. 7.

The figures are labeled as follows:

100-vertical tail; 200-a transmission; 300-rudder; 400-a fuselage; 500-an airfoil; 600-a tail stay; 700-a landing gear;

101-a body; 102-a mounting frame; 103-screw structure; 104-a bearing; 105-a nut structure;

1-a scaffold; 2-a drive assembly; 3-mounting the component;

11-a limiting hole; 12-a first plate; 13-a second plate; 14-a third plate; 15-a second mounting hole; 21-a drive section; 22-a rotating shaft; 23-mounting a flange; 24-a limiting part; 31-a transmission part; 32-a mounting portion;

221-external splines; 231-first mounting holes; 311-plug holes; 312-internal splines; 313-a limit plate; 321-a mounting plate; 322-adjusting block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

This embodiment provides an aircraft, and this aircraft can be unmanned aerial vehicle or have man-machine, and this embodiment explains to unmanned aerial vehicle. For the convenience of understanding the structure of the unmanned aerial vehicle, the structure of the unmanned aerial vehicle is described with reference to fig. 1. As shown in fig. 1, the unmanned aerial vehicle includes a fuselage 400, wings 500, tail stays 600, a landing gear 700, a vertical tail fin 100, and a rudder 300, wherein the wings 500 are disposed on both sides of the fuselage 400, the tail stays 600 extending along the length direction of the fuselage 400 are disposed on each wing 500, and the two tail stays 600 are symmetrically distributed on both sides of the fuselage 400. Every tail stay 600's lower extreme sets up the undercarriage 700 that can receive and release in addition, and when unmanned aerial vehicle need land, undercarriage 700 put down, and the gyro wheel on the undercarriage 700 contacts with the bottom surface, and after unmanned aerial vehicle has taken off successfully, undercarriage 700 withdraws, and unmanned aerial vehicle can effectively avoid wind-force to undercarriage 700's effect at the flight in-process, improves undercarriage 700's life. The rear end of each tail stay 600 is provided with a vertical tail wing 100, the vertical tail wing 100 is provided with a rudder 300 capable of moving relative to the vertical tail wing 100, and the rudder 300 is used for realizing the course control of the unmanned aerial vehicle and finishing the course and small-angle steering of the unmanned aerial vehicle.

The traditional aircraft adopts a transmission device of a steel cable and a roller train to realize the control of a rudder. The complex arrangement of the steel cable, the long transmission line of the transmission device of the steel cable and the roller train between the pilot cab and the rudder leads to large transmission error and small transmission precision due to more related parts. In addition, the steel cable can be subjected to heat shrinkage with different degrees under different temperature and weather conditions, so that the transmission device is blocked, and the roller can be subjected to position change and abrasion in long-term use and also can be blocked. The jamming phenomenon can cause fatal consequences to the steering of the rudder, and even cause the machine to be damaged and the people to be killed.

In order to solve the above problem, as shown in fig. 2, the unmanned aerial vehicle of this embodiment further includes a transmission device 200, the vertical tail 100 is connected to the rudder 300 through the transmission device 200, and the transmission device 200 can drive the rudder 300 to rotate a certain angle relative to the vertical tail 100. As shown in fig. 3 and 4, the transmission 200 of the present embodiment includes a bracket 1, a driving assembly 2 and a mounting assembly 3, wherein the bracket 1 is connected with the vertical tail 100, the driving component 2 comprises a driving part 21 and a rotating shaft 22, the driving part 21 is fixed on the bracket 1, the driving part 21 can drive the rotating shaft 22 to rotate relative to the bracket 1, the mounting component 3 is in transmission connection with the rotating shaft 22, the rudder 300 is mounted on the mounting component 3, when the driving part 21 works, the driving part 21 drives the rotating shaft 22 to rotate relative to the bracket 1, the rotating shaft 22 drives the mounting component 3 and the rudder 300 to rotate relative to the bracket 1, so that the rudder 300 generates deflection of a required flight control angle, thereby realizing the control of the rudder 300 of the unmanned aerial vehicle, compared with the traditional transmission device of a steel cable and a roller group, the transmission device 200 has the advantages of simple and exquisite structure, high transmission precision, high reliability and difficult clamping stagnation. The driving unit 21 of the present embodiment may be a single motor, or may be a structure in which a motor and a speed reducer are integrated into a whole, or any structure that can realize rotation output. In addition, the transmission device 200 mentioned in the present embodiment can be applied not only to the unmanned aerial vehicle, but also to other types of aircrafts.

In order to realize a more stable installation of the driving assembly 2 on the bracket 1, the driving assembly 2 further includes a mounting flange 23, the mounting flange 23 is disposed above the driving portion 21, the bracket 1 is fixed on an upper surface of the mounting flange 23, and the bracket 1 and the mounting flange 23 are fixed by a plurality of first fixing members. Through setting up mounting flange 23, can effectively enlarge the region that sets up first mounting, through setting up a plurality of first mountings, can realize fixing drive assembly 2 at support 1 more stably. Preferably, the plurality of first fixing pieces are uniformly distributed along the circumferential direction of the mounting flange 23, so that the stress of each first fixing piece is uniform, the damage of some first fixing pieces caused by overlarge stress can be avoided, the longer service life of each first fixing piece can be ensured, and the better fixing effect of the first fixing pieces on the support 1 and the mounting flange 23 is realized.

Specifically, as shown in fig. 4, four first mounting holes 231 are formed in the bracket 1, as shown in fig. 5, four second mounting holes 15 are formed in the bracket 1, when the bracket 1 is placed on the upper surface of the mounting flange 23, each first mounting hole 231 and each second mounting hole 15 are arranged opposite to each other one by one, the first fixing component in this embodiment may be a bolt and a nut, a screw of the bolt passes through the first mounting hole 231 and the second mounting hole 15, the nut is screwed onto the screw from a free end of the screw, and the bolt head of the bolt is matched with the nut, so that the effect of clamping and fixing the bracket 1 and the mounting flange 23 is achieved. Of course, in other embodiments, the first fixing component may also be a screw, a pin, or the like, which can fix the bracket 1 and the mounting flange 23. In other embodiments, the bracket 1 and the mounting flange 23 may also be fixed by welding, which can reduce the number of first fixing components, and can effectively reduce the number of parts of the transmission device 200.

Preferably, as shown in fig. 5, the bracket 1 is "Contraband", the bracket 1 includes a first plate 12, a second plate 13, and a third plate 14 that are connected in sequence, the mounting flange 23 is fixed to the second plate 13, the driving portion 21 and the mounting flange 23 are located in a space formed by the first plate 12, the second plate 13, and the third plate 14, the bracket 1 can shield the driving portion 21 and the mounting flange 23 well, on one hand, the aesthetic property of the transmission device 200 can be ensured, on the other hand, the bracket 1 can protect the driving portion 21 and the mounting flange 23, and damage to the driving portion 21 and the mounting flange 23 caused by other parts of the transmission device 200 or external impurities is avoided.

Preferably, as shown in fig. 4, the mounting flange 23 of the present embodiment has a regular quadrangular prism structure, and since the mounting flange 23 has four side surfaces, an operator can easily fix the mounting flange 23 on the bracket 1 by holding the oppositely disposed side surfaces with hands, and the mounting flange 23 can be prevented from being loosened from the operator's hands. Preferably, two adjacent side surfaces of the mounting flange 23 are connected by a chamfer or a rounded transition, so as to avoid the two adjacent side surfaces forming a sharp corner to scratch an operator or other parts of the transmission device 200, and ensure the personal safety of the operator and the service life of other parts of the transmission device 200.

Preferably, as shown in fig. 4, the driving assembly 2 further includes a limiting portion 24, the limiting portion 24 is disposed on the mounting flange 23, as shown in fig. 5, the bracket 1 is provided with a limiting hole 11 matching with the outer peripheral shape and size of the limiting portion 24, as shown in fig. 3, the limiting portion 24 is inserted into the limiting hole 11. Because the peripheral shape and the size of the limiting part 24 are matched with the shape and the size of the limiting hole 11, the driving assembly 2 and the support 1 can be quickly preassembled and positioned, the alignment precision of the first mounting holes 231 and each second mounting hole 15 is improved, and the mounting efficiency of the driving assembly 2 and the support 1 is improved. Drive assembly 2 is at the in-process of drive rudder 300 motion, rudder 300 also can act on a reaction force to pivot 22 and drive division 21 because inertia, preferably, be the higher clearance fit of precision between spacing portion 24 and the spacing hole 11, spacing hole 11 can effectively restrict spacing portion 24 in the motion of circumference, can avoid pivot 22 to take place great swing and the pivot 22 rupture phenomenon that leads to, improve pivot 22's life, guarantee transmission 200's normal use.

Preferably, in order to make the arrangement of each part in the driving assembly 2 more compact, as shown in fig. 4, the mounting flange 23, the limiting portion 24 and the rotating shaft 22 are coaxially arranged, and the rotating shaft 22 sequentially extends out of the mounting flange 23 and the limiting portion 24 to be in transmission connection with the mounting assembly 3.

For the sake of understanding the structure of the mounting unit 3, the structure of the mounting unit 3 will now be described with reference to fig. 3 and 6. As shown in fig. 3, the mounting assembly 3 includes a transmission portion 31 and a mounting portion 32 connected to each other, wherein the transmission portion 31 is in transmission connection with the rotating shaft 22, and the mounting portion 32 is used for fixing the rudder 300. In order to realize better power and torque transmission between the transmission part 31 and the rotating shaft 22, as shown in fig. 4 and 6, an insertion hole 311 is formed in the transmission part 31, an internal spline 312 is arranged inside the insertion hole 311, an external spline 221 matched with the internal spline 312 is arranged on the periphery of the rotating shaft 22 extending out of the limiting part 24, and the external spline 221 is inserted into the internal spline 312.

As shown in fig. 3 and 6, the transmission portion 31 includes an installation body and a limiting plate 313, the insertion hole 311 is formed in the installation body and is a through hole, and the limiting plate 313 covers an upper opening of the insertion hole 311 and is fixed to the installation body by a screw or a pin. When the rotating shaft 22 is inserted into the inserting hole 311, the upper surface of the rotating shaft 22 is abutted to the lower surface of the limiting plate 313, the lower surface of the mounting body is arranged in a gap with the upper surface of the limiting portion 313, when the rotating shaft 22 drives the mounting component 3 to rotate, the lower surface of the mounting body and the upper surface of the limiting portion 313 can be prevented from generating a friction phenomenon, the rotating precision of the mounting component 3 relative to the support 1 is improved, the service lives of the mounting body and the limiting portion 313 can be prolonged, and the normal operation of the transmission device 200 is ensured.

Since the flight attitude of the drone is variable, if the upper end of the drone faces the ground in fig. 1, there will be a problem that the transmission portion 31 falls off from the rotating shaft 22. In order to solve the above problem, preferably, installation component 3 still includes the second mounting, and the pivot 22 that stretches out spacing portion 24 is fixed mutually through the second mounting with transmission portion 31, and the relative motion of transmission portion 31 and pivot 22 along the axis direction can effectively be restricted to the second mounting, and when unmanned aerial vehicle flies under multiple gesture, can guarantee that transmission portion 31 can not drop from pivot 22. In particular, the second fixing member may be a pin, a bolt, or a screw.

To describe the structure of the mounting portion 32 in detail, as shown in fig. 3, the mounting portion 32 includes a mounting plate 321, an adjusting block 322, and a third fixing member, the mounting plate 321 is connected to the transmission portion 31, the adjusting block 322 and the rudder 300 are sequentially placed on the mounting plate 321, and the third fixing member fixes the mounting plate, the adjusting block 322, and the rudder 300. Because the rudder 300 has machining errors and installation errors, the position of the rudder 300 installed on the transmission device 200 along the vertical direction is not accurate, and the fine adjustment of the position of the rudder 300 along the vertical direction can be realized by adjusting the thickness of the adjusting block 322. Specifically, the mounting error between the rudder 300 and the mounting portion 32 during assembly can be reduced or eliminated by replacing the adjusting blocks 322 with different thicknesses or grinding the upper and lower surfaces of the adjusting blocks 322, so as to facilitate the mounting of the rudder 300 and the transmission 200. The transmission 200 of this embodiment can realize through first mounting that drive assembly 2 is connected with dismantling of support 1, can realize through the third mounting that rudder 300 is connected with dismantling of installation component 3, so the transmission 200 of this embodiment can install on different aircraft to with the aircraft phase-match of different models, commonality and adaptability are better.

Example two

The present embodiment provides a transmission device 200 and an aircraft, the transmission device 200 and the aircraft have substantially the same corresponding structures as the embodiments, and the main differences are as follows: there are different structures for restricting the transmission portion 31 from falling off the rotation shaft 22.

As shown in fig. 7, the vertical rear wing 100 includes a body 101, a mounting bracket 102, a screw 103, and a nut 105. Support 1 and body 101's lower part fixed connection, the upper portion of body 101 is provided with mounting bracket 102, the bottom of rudder 300 is fixed on transmission 200's installation component 3, the top of rudder 300 is provided with screw structure 103, the top of screw structure 103 passes and stretches out mounting bracket 102, be provided with nut structure 105 on screw structure 103's the free end, cooperation through nut structure 105 and installation component 3, can restrict the relative motion of rudder 300 and perpendicular fin 100 along the axis direction, avoid rudder 300 to drop from perpendicular fin 100, guarantee that this aircraft can carry out the flight of arbitrary gesture.

Preferably, as shown in fig. 8, in order to avoid the wear of the screw structure 103 and the mounting frame 102, the vertical tail 100 further includes a bearing 104, the bearing 104 is disposed between the mounting frame 102 and the screw structure 103, and the bearing 104 can ensure the relatively smooth rotation of the rudder 300 relative to the vertical tail 100.

It is noted that the basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (10)

1. A transmission, comprising:

a bracket (1) for connection to a vertical tail (100);

the driving assembly (2) comprises a driving part (21) and a rotating shaft (22), the driving part (21) is fixed on the bracket (1), and the driving part (21) can drive the rotating shaft (22) to rotate relative to the bracket (1); and

the mounting component (3) is in transmission connection with the rotating shaft (22), and the mounting component (3) is used for mounting the rudder (300).

2. The transmission of claim 1, wherein the drive assembly (2) further comprises a mounting flange (23), the mounting flange (23) is disposed above the drive portion (21), the bracket (1) is disposed on an upper surface of the mounting flange (23), and the bracket (1) and the mounting flange (23) are fixed by a plurality of first fixing members.

3. A transmission arrangement according to claim 2, characterised in that a plurality of said first fixing members are evenly distributed along the circumference of said mounting flange (23).

4. Transmission according to claim 2, characterized in that said support (1) is of the "Contraband" type, said support (1) comprising a first plate (12), a second plate (13) and a third plate (14) connected in series, said mounting flange (23) being fixed to said second plate (13), said driving portion (21) and said mounting flange (23) being located in the space formed by said first plate (12), said second plate (13) and said third plate (14).

5. The transmission device according to claim 2, wherein the driving assembly (2) further comprises a limiting portion (24), the limiting portion (24) is arranged on the mounting flange (23), a limiting hole (11) matched with the limiting portion (24) in shape and size is formed in the support (1), and the limiting portion (24) is inserted into the limiting hole (11).

6. The transmission device according to claim 5, characterized in that the mounting flange (23), the limiting portion (24) and the rotating shaft (22) are coaxially arranged, and the rotating shaft (22) sequentially extends out of the mounting flange (23) and the limiting portion (24) to be in transmission connection with the mounting assembly (3).

7. The transmission device according to claim 5, characterized in that the mounting component (3) comprises a transmission part (31), the transmission part (31) is provided with an insertion hole (311), an internal spline (312) is arranged inside the insertion hole (311), an external spline (221) matched with the internal spline (312) is arranged on the periphery of the rotating shaft (22) extending out of the limiting part (24), and the external spline (221) is inserted into the internal spline (312).

8. The transmission device according to claim 7, wherein the mounting assembly (3) further comprises a second fixing member, and the rotating shaft (22) extending out of the limiting portion (24) is fixed with the transmission portion (31) through the second fixing member.

9. The transmission device according to claim 7 or 8, characterized in that the mounting assembly (3) further comprises a mounting portion (32), the mounting portion (32) comprises a mounting plate (321), an adjusting block (322) and a third fixing member, the mounting plate (321) is connected with the transmission portion (31), the adjusting block (322) and the rudder (300) are sequentially placed on the mounting plate (321), the third fixing member fixes the mounting plate (321), the adjusting block (322) and the rudder (300), and the thickness of the adjusting block (322) is adjustable.

10. An aircraft comprising a transmission according to any one of claims 1 to 9.

Images