CN208559747U - The main rotor body of single rotor unmanned plane - Google Patents

Abstract

The utility model discloses a kind of main rotor bodies of single rotor unmanned plane, main rotor head including being fixedly connected on unmanned plane main shaft, the main rotor head includes joining in paddle seat, connection has the vertical arm and transverse arm for constituting T-shaped structure in the paddle seat, the vertical arm is fixedly connected on the main shaft, the both ends of the transverse arm are all equipped with the folder of the main paddle for clamping main rotor, one end of the main paddle folder is set in the transverse arm, and the position worn is equipped with thrust bearing and at least one paddle angle contact bearing, two main paddle folders are all rotationally connected with the transverse arm by the thrust bearing and paddle angle contact bearing, the side wall of two main paddle folders is all equipped with paddle clamp arm.The utility model solves the problems, such as the end-play of main rotor by angular contact bearing, guarantees that main rotor shaft in aperistaltic situation, makes main rotor deflection more smoothly can also ensure that the stability of main rotor body when unmanned plane operation.

Description

The main rotor body of single rotor unmanned plane

Technical field

The utility model belongs to air vehicle technique field, more particularly to a kind of single rotor unmanned plane.

Background technique

Single rotor unmanned plane, also referred to as helicopter unmanned plane are gone up to the air by main rotor and are flown, and are changed by tail rotor and are deflected Direction has mobility strong, the fast characteristic of flying speed, so racing compared to more rotors or fixed-wing unmanned plane In field, helicopter unmanned plane is always more popular type, and the main rotor body of helicopter unmanned plane be it is entire nobody The power resources of machine, so main rotor body needs splendid stability, to guarantee the stabilized flight of unmanned plane, main rotor rotation When turning, since centrifugal force is larger, so that the deflection of main rotor may be unable to complete successfully, or deflection cannot reach predetermined angle Degree, the main rotor body of existing helicopter unmanned plane, the deflection connection of main paddle folder are all by installed thrust bearing and general Logical roller bearing is completed, and is had thrust bearing to undertake its centrifugal tension, but since the end-play of thrust bearing is larger, is actually made In, the deflection of main rotor and rotation all have certain error with setting value, it is therefore desirable to one kind can effectively reduce due to Error caused by centrifugal tension, and can guarantee main rotor deflection can be more smooth main rotor body.

Utility model content

The utility model passes through mainly solving the technical problems that provide a kind of main rotor body of single rotor unmanned plane Angular contact bearing solves the problems, such as the end-play of main rotor, guarantees that main rotor shaft in aperistaltic situation, keeps main rotor inclined Turn more smoothly to ensure that the stability of main rotor body when unmanned plane operation.

In order to solve the above technical problems, a technical solution of the use of the utility model is as follows:

A kind of main rotor body of single rotor unmanned plane, the main rotor head including being fixedly connected on unmanned plane main shaft are described Main rotor head is vertically arranged with the main shaft；

The main rotor head includes joining in paddle seat, and connection has vertical arm and transverse arm, connection mistake in the paddle seat in the paddle seat The transverse arm and vertical arm are configured to T-shaped structure, and the vertical arm is fixedly connected on the main shaft, and the both ends of the transverse arm are all set There is the main paddle folder for clamping main rotor, one end of the main paddle folder is set in the transverse arm, and the position worn is equipped with Thrust bearing and at least one paddle angle contact bearing, two main paddle folders are all contacted by the thrust bearing and paddle angle Bearing is rotationally connected with the transverse arm, and the side wall of two main paddles folders is all equipped with paddle clamp arm, and two main paddles folders Paddle clamp arm is relative direction setting, and the main paddle folder is fixed in one end of the paddle clamp arm, and the other end is equipped with linkage bulb；

The main rotor body further includes cross plate, and the cross plate wears and is fixed on the main shaft and is located at the paddle The lower section that joins in seat, the cross plate include oscillating bearing, disk, cross lower wall, cross plate inner ring and cross plate corner connection on cross Contact bearing, disk and cross lower wall are all set in the lateral wall of the cross plate inner ring on the cross, and are located at described ten The both ends of letter disk inner ring, disk is fixedly connected with the cross plate inner ring on the cross, the cross lower wall and the cross plate Inner ring is rotatably connected by cross plate angular contact bearing, and the oscillating bearing is set to the inner sidewall of the cross plate inner ring, and One end where disk on the cross, the inner ring of the oscillating bearing are fixed on the main shaft, and the cross plate passes through institute Stating oscillating bearing can be realized pendulum motion, and the side wall of disk is additionally provided with four linkage bulbs on the cross, wherein opposite two A linkage bulb be overturning bulb, and other two described linkage bulb be phase bulb, the overturning bulb with it is described The linkage bulb of paddle clamp arm one end is connected by connecting rod.

It further says, the connecting rod includes that the body of rod and two bulbs for being respectively arranged on the body of rod both ends are buckled, the company Bar is connect by the bulb button with the linkage bulb.

It further says, one end of the body of rod has right-handed thread, and the other end has left hand thread, two balls Head button is threadedly connected to the body of rod.

It further says, the paddle angle contact bearing is double row angular contact bearing, described at two main paddle folders The quantity of double row angular contact bearing is all two, and two angular contact bearings are located at the fixation position of the paddle clamp arm Two sides.

It further says, the thrust bearing is located between two paddle angle contact bearings.

Further say, the main rotor body further includes phase retainer, the phase retainer include phase arm and Transmission arm, the phase arm and the transmission arm are hinged, and the phase arm and the transmission arm can in being rotated in same plane, The free end of the phase arm, which is articulated in the main shaft or the paddle seat, to be joined, and the free end of the transmission arm is articulated with the phase Position bulb.

It further says, there are two threaded hole, two threaded holes for one end tool of the paddle clamp arm equipped with linkage bulb It arranges by horizontal direction, the linkage bulb can be installed on any threaded hole.

It further says, the cross plate angular contact bearing is double row angular contact bearing.

It further says, the transverse arm joined in the paddle seat has the through-hole axially penetrated through along it, is installed with cross in the transverse arm Axis, the main paddle folder are rotationally connected with the horizontal axis.

It further says, the vertical arm joined in the paddle seat has blind hole, and the excessively described blind hole of connection is worn simultaneously in the paddle seat It is fixed on the main shaft.

The utility model has the beneficial effects that

One, the main rotor body of the utility model completes being rotatably connected for main paddle folder by using angular contact bearing, The problem of end-play of main rotor is able to solve by angular contact bearing avoids the axial of main rotor from wriggling, matching thrust axis It holds, the further stability for guaranteeing main rotor guarantees the overturning that main rotor can be smooth, in addition also uses angular contact at cross plate Bearing, the same with main rotor, angular contact bearing is while guaranteeing rotary motion, moreover it is possible to effectively avoid axial wriggling, mention The precision of height transmission, being capable of more accurately control force with this；

Two, the main rotor body of the utility model realizes the phase holding of overturning and the rotation of main rotor by cross plate, The oscillating bearing of cross plate can be realized any angle deflection of cross plate, and the deflection of main paddle folder is driven by connecting rod, and then control The deflection of main rotor processed；Be additionally provided with phase retainer between cross plate and main rotor, phase retainer be able to maintain main rotor with The relative positional relationship of cross plate, while phase retainer has the phase arm and transmission arm being hinged, and it passes through bulb It is connect with main paddle folder and cross plate, in main rotor rotation, to the no any influence of the deflection of main rotor；

Three, the main rotor body of the utility model, one end of paddle clamp arm are set that there are two threaded holes by horizontal direction, thus Linkage bulb is set to replace installation site, thus the replacement of position can set the range of the deflection angle of main rotor It is fixed；In addition, linkage component is respectively arranged on the bulb button at body of rod both ends with the body of rod and two, and one end of the body of rod has dextrorotation spiral shell Line, and the other end has left hand thread, two bulb buttons are threadedly connected to the body of rod, rotate the body of rod can be realized its two Precession or the back-out simultaneously of the bulb button at end, keeps the adjusting of length of connecting rod more easy.

Four, the main rotor body of the utility model wherein the transverse arm joined has the through-hole axially penetrated through, and is equipped in through-hole Horizontal axis, two main paddle folders are respectively arranged on the both ends of horizontal axis, and when main rotor rotation, the centrifugal tension generated acts on cross simultaneously Axis, the centrifugal force on both sides is cancelled out each other at this time, without this power to be applied on middle fire main shaft, can prevent from causing main shaft It is displaced or damages.

The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail It describes in detail bright as after.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the main rotor body of the utility model；

Fig. 2 is the structural schematic diagram of the main rotor head of the utility model；

Fig. 3 is the middle schematic diagram of main rotor head；

Fig. 4 is the schematic diagram at the main paddle folder of main rotor head；

Fig. 5 is the portion the A enlarged drawing of Fig. 4；

Fig. 6 is the structural schematic diagram of the cross plate of the utility model；

Fig. 7 is the decomposition texture schematic diagram of the cross plate of the utility model；

Fig. 8 is the cross-sectional view of the cross plate of the utility model；

Fig. 9 is the cross-sectional view (another swing angle) of the cross plate of the utility model；

Figure 10 is the schematic diagram of the connecting rod of the utility model；

Figure 11 is the schematic diagram of the main paddle folder of the main rotor head of the utility model；

Figure 12 is the structural schematic diagram of the phase retainer of the utility model；

Each section label is as follows in attached drawing:

Main shaft 1, main rotor head 302, connection 3021, vertical arm 30211, transverse arm 30212, main paddle press from both sides 3022, thrust axis in paddle seat Hold 3023, paddle angle contact bearing 3024, paddle clamp arm 3025, linkage bulb 3027, through-hole 302121, horizontal axis 30213, threaded hole 30252, cross plate 303, oscillating bearing 3031, disk 3032, cross lower wall 3033, cross plate inner ring 3034, cross plate on cross Angular contact bearing 3035, overturning bulb 30321, phase bulb 30322, connecting rod 3028, the body of rod 30281, bulb buckle 30282, paddle The fixation position 30251 of clamp arm, phase retainer 3029, phase arm 30291, transmission arm 30292.

Specific embodiment

The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear Define.

Embodiment: a kind of main rotor body of single rotor unmanned plane includes being fixedly connected on unmanned owner as shown in Figure 1: The main rotor head 302 of axis 1, the main rotor head are vertically arranged with the main shaft；

As shown in Fig. 2 to Fig. 5: the main rotor head includes joining 3021 in paddle seat, and connection has vertical arm 30211 in the paddle seat With transverse arm 30212, the excessively described transverse arm of connection and vertical arm are configured to T-shaped structure in the paddle seat, and the vertical arm is fixedly connected In the main shaft, the both ends of the transverse arm are all equipped with the folder of the main paddle for clamping main rotor 3022, and one end of the main paddle folder is worn It is placed on the transverse arm, and the position worn is equipped with thrust bearing 3023 and at least one paddle angle contact bearing 3024, two A main paddle folder is all rotationally connected with the transverse arm, two masters by the thrust bearing and paddle angle contact bearing The side wall of paddle folder is all equipped with paddle clamp arm 3025, and the paddle clamp arm of two main paddle folders is relative direction setting, the paddle clamp arm One end be fixed on the main paddle folder, the other end is equipped with linkage bulb 3027；

The transverse arm joined in the paddle seat has the through-hole 302121 axially penetrated through along it, is installed with horizontal axis in the transverse arm 30213, the main paddle folder is rotationally connected with the horizontal axis；

The vertical arm joined in the paddle seat has blind hole, and the excessively described blind hole of connection wears and is fixed on the master in the paddle seat Axis.

The paddle clamp arm is equipped with one end tool of linkage bulb there are two threaded hole 30252, and two threaded holes press level Direction arrangement, the linkage bulb can be installed on any threaded hole, can set main rotor by two threaded holes The range of flip angle；

As shown in Figure 6 and Figure 7: the main rotor body further includes cross plate 303, and the cross plate wears and is fixed on institute It states main shaft and is located at the lower section that joins in the paddle seat, the cross plate includes oscillating bearing 3031, on cross under disk 3032, cross Disk 3033, cross plate inner ring 3034 and cross plate angular contact bearing 3035, disk and cross lower wall are all set in institute on the cross The lateral wall of cross plate inner ring is stated, and is located at the both ends of the cross plate inner ring, disk and the cross plate on the cross Inner ring is fixedly connected, and the cross lower wall is rotatably connected with the cross plate inner ring by cross plate angular contact bearing, described Oscillating bearing is set to the inner sidewall of the cross plate inner ring, and is located at one end on the cross where disk, the oscillating bearing Inner ring be fixed on the main shaft；

As shown in Figure 8 and Figure 9: the cross plate can be realized pendulum motion by the oscillating bearing, on the cross The side wall of disk is additionally provided with four linkage bulbs, wherein two opposite linkage bulbs are overturning bulb 30321, and other two A linkage bulb is phase bulb 30322, and the linkage bulb of the overturning bulb and paddle clamp arm one end passes through connecting rod 3028 connect, the rotation of main paddle folder described in the wobble drive by the cross plate.

As shown in Figure 10: the connecting rod includes that the body of rod 30281 and two bulbs for being respectively arranged on the body of rod both ends are buckled 30282, the connecting rod is buckled by the bulb and is connect with the linkage bulb；

One end of the body of rod has right-handed thread, and the other end has left hand thread, and two bulb button screw threads connect It is connected to the body of rod, rotating the body of rod can be realized bulb button precession or the back-out simultaneously at its both ends.

As shown in figure 11: the paddle angle contact bearing is double row angular contact bearing, described at two main paddle folders The quantity of double row angular contact bearing is all two, and two angular contact bearings are located at the fixation position of the paddle clamp arm 30251 two sides.

The thrust bearing is located between two paddle angle contact bearings.

As shown in figs. 1 and 12: the main rotor body further includes phase retainer 3029, and the phase retainer includes Phase arm 30291 and transmission arm 30292, the phase arm and the transmission arm are hinged, and the phase arm and the transmission arm It can be in being rotated in same plane, the free end of the phase arm, which is articulated in the main shaft or the paddle seat, to be joined, the transmission arm Free end be articulated with the phase bulb, the phase retainer be able to maintain on the main rotor head and the cross disk it Between relative positional relationship, and main rotor head rotate when can be stable drive cross on disc spins.

The cross plate angular contact bearing is double row angular contact bearing.

The course of work and working principle of the utility model are as follows:

Main rotor body completes being rotatably connected for main paddle folder by using angular contact bearing, passes through angular contact bearing energy The end-play for enough solving the problems, such as main rotor, avoids the axial of main rotor from wriggling, and matching thrust bearing is further to guarantee master The stability of rotor guarantees the overturning that main rotor can be smooth, in addition angular contact bearing is also used at cross plate, with main rotor one Sample, angular contact bearing is while guaranteeing rotary motion, moreover it is possible to axial wriggling effectively avoided, the precision of transmission is improved, with This being capable of more accurately control force；

Main rotor body realizes the phase holding of overturning and the rotation of main rotor, the oscillating bearing of cross plate by cross plate Any angle deflection that can be realized cross plate, the deflection of main paddle folder is driven by connecting rod, and then controls the deflection of main rotor；Ten Phase retainer is additionally provided between letter disk and main rotor, phase retainer is able to maintain main rotor and the relative position of cross plate is closed System, while phase retainer has the phase arm and transmission arm being hinged, and it is pressed from both sides by bulb and main paddle and cross plate connects It connects, in main rotor rotation, to the no any influence of the deflection of main rotor；

One end of paddle clamp arm is set by horizontal direction there are two threaded hole, so that the bulb that enables to link replaces installation site, Thus the replacement of position can set the range of the deflection angle of main rotor；In addition, linkage component has the body of rod and two A bulb button for being respectively arranged on body of rod both ends, and one end of the body of rod have right-handed thread, and the other end have left hand thread, two Bulb button is threadedly connected to the body of rod, and rotating the body of rod can be realized bulb button precession or the back-out simultaneously at its both ends, makes The adjusting of length of connecting rod is more easy.

Middle transverse arm has the through-hole axially penetrated through, and horizontal axis is equipped in through-hole, and two main paddle folders are respectively arranged on horizontal axis Both ends, when main rotor rotation when, generate centrifugal tension simultaneously act on horizontal axis, the centrifugal force on both sides mutually supports at this time Disappear, without this power to be applied on middle fire main shaft, the displacement for causing main shaft can be prevented or damaged.

The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all Equivalent structure transformation made based on the specification and figures of the utility model, it is relevant to be applied directly or indirectly in other Technical field is also included in the patent protection scope of the utility model.

Claims (10)

1. a kind of main rotor body of single rotor unmanned plane, it is characterised in that: the master including being fixedly connected on unmanned plane main shaft (1) Rotor head (302), the main rotor head are vertically arranged with the main shaft；

The main rotor head includes connection (3021) in paddle seat, and connection has vertical arm (30211) and transverse arm (30212) in the paddle seat, The excessively described transverse arm of connection and vertical arm are configured to T-shaped structure in the paddle seat, and the vertical arm is fixedly connected on the main shaft, institute The both ends for stating transverse arm are all equipped with main paddle folder (3022) for clamping main rotor, and one end of the main paddle folder is set in the cross Arm, and the position worn is equipped with thrust bearing (3023) and at least one paddle angle contact bearing (3024), described in two Main paddle folder is all rotationally connected with the transverse arm by the thrust bearing and paddle angle contact bearing, what two main paddles pressed from both sides Side wall is all equipped with paddle clamp arm (3025), and the paddle clamp arm of two main paddle folders is that relative direction is arranged, and the one of the paddle clamp arm The main paddle folder is fixed at end, and the other end is equipped with linkage bulb (3027)；

The main rotor body further includes cross plate (303), and the cross plate wears and is fixed on the main shaft and is located at described The lower section joined in paddle seat, the cross plate include oscillating bearing (3031), disk (3032), cross lower wall (3033), ten on cross Letter disk inner ring (3034) and cross plate angular contact bearing (3035), disk and cross lower wall are all set in the cross on the cross The lateral wall of disk inner ring, and the both ends of the cross plate inner ring are located at, disk and the cross plate inner ring are solid on the cross Fixed connection, the cross lower wall are rotatably connected with the cross plate inner ring by cross plate angular contact bearing, the joint shaft The inner sidewall set on the cross plate inner ring is held, and is located at one end on the cross where disk, the inner ring of the oscillating bearing It is fixed on the main shaft, the cross plate can be realized pendulum motion by the oscillating bearing, the side wall of disk on the cross Four linkage bulbs are additionally provided with, wherein two opposite linkage bulbs are overturning bulb (30321), and described in other two The bulb that links is phase bulb (30322), and the linkage bulb of the overturning bulb and paddle clamp arm one end passes through connecting rod (3028) it connects.

2. the main rotor body of single rotor unmanned plane according to claim 1, it is characterised in that: the connecting rod includes the body of rod (30281) and two bulb buttons (30282) for being respectively arranged on the body of rod both ends, the connecting rod by the bulb buckle with it is described Link bulb connection.

3. the main rotor body of single rotor unmanned plane according to claim 2, it is characterised in that: one end of the body of rod has There is right-handed thread, and the other end has left hand thread, two bulb buttons are threadedly connected to the body of rod.

4. the main rotor body of single rotor unmanned plane according to claim 1, it is characterised in that: the paddle angle engagement shaft It holds as double row angular contact bearing, the quantity of the double row angular contact bearing at two main paddle folders is all two, and two The angular contact bearing is located at the two sides of the fixation position (30251) of the paddle clamp arm.

5. the main rotor body of single rotor unmanned plane according to claim 4, it is characterised in that: the thrust bearing is located at Between two paddle angle contact bearings.

6. the main rotor body of single rotor unmanned plane according to claim 1, it is characterised in that: the main rotor body is also Including phase retainer (3029), the phase retainer includes phase arm (30291) and transmission arm (30292), the phase Arm and the transmission arm are hinged, and the phase arm and the transmission arm can in being rotated in same plane, the phase arm from It is articulated in the main shaft or the paddle seat and is joined by end, the free end of the transmission arm is articulated with the phase bulb.

7. the main rotor body of single rotor unmanned plane according to claim 1, it is characterised in that: the paddle clamp arm is equipped with connection One end tool of dynamic bulb is there are two threaded hole (30252), and two threaded holes are arranged by horizontal direction, the linkage bulb energy Enough it is installed on any threaded hole.

8. the main rotor body of single rotor unmanned plane according to claim 1, it is characterised in that: the cross plate angular contact Bearing is double row angular contact bearing.

9. the main rotor body of single rotor unmanned plane according to claim 1, it is characterised in that: the cross joined in the paddle seat Arm has the through-hole (302121) axially penetrated through along it, is installed with horizontal axis (30213) in the transverse arm, and the main paddle folder rotatably connects It is connected to the horizontal axis.

10. the main rotor body of single rotor unmanned plane according to claim 1, it is characterised in that: join in the paddle seat Vertical arm has blind hole, and the excessively described blind hole of connection wears and is fixed on the main shaft in the paddle seat.