CN201558537U

CN201558537U - Model helicopter control system

Info

Publication number: CN201558537U
Application number: CN2009203533939U
Authority: CN
Inventors: 罗之洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-31
Filing date: 2009-12-31
Publication date: 2010-08-25
Anticipated expiration: 2019-12-31

Abstract

The utility model provides a model helicopter control system simultaneously having stability and controllability, which relates to the field of coaxial and dual rotor helicopters. The utility model aims to overcome the defects of the prior art. The system comprises a control actuating mechanism, a transmission mechanism, a control mechanism and a rotor mechanism. The rotor mechanism comprises an upper rotor and a lower rotor which are coaxially arranged up and down along a main shaft and respectively controlled by inner and outer shafts to rotate. The improvement on the structure lies in that the control mechanism comprises a Ball self-balance mechanism controlling the upper rotor and a Ball-Hill control structure controlling the lower rotor, and the rotor mechanism is controlled by the control actuating mechanism through the transmission mechanism and the control mechanism. In the utility model, the upper rotor performing a balance function is automatically controlled by the Ball self-balance mechanism having strong stability, and the lower rotor performing a function for controlling directions is actively controlled by the Ball-Hill control structure having high sensitivity.

Description

A kind of model helicopter control system

Technical field

The utility model relates to coaxial double-rotary wing model helicopter field, the model helicopter control system of saying so more specifically and having stability and handling concurrently.

Background technology

Existing model helicopter with coaxial double-rotary wing structure, as PCT application international publication number is that WO02/064425 A2 and Chinese patent publication number are CN1496923A, two rotors are installed in rotating shaft, and one is used to turn to control, and one is used for balance control.What flexibly performance and stability depended primarily on that balanced controls adopt is balance slurry (WO02/064425 A2) or counterweight (CN1496923A), adopts balance pulp grinder structure to possess balance simultaneously and turns to the effect of control two aspects, flexible but less stable; Adopt balance weight mechanism stability that large increase has been arranged, but slow in reacting, be applicable to that the model plane beginner is suitable for.But the member of these two kinds of structures is many, and the fault rate height to the degrees of coordination designing requirement height of rotor up and down, needs the parameter of regulating more loaded down with trivial details, and cost is high and use inconvenient.

For above-mentioned existing toy helicopter structure, its performance is in two extremely, otherwise is exactly too stable, otherwise is exactly too flexible, can only be applicable to the ABC of player or the senior player of model plane.And model plane control experience is arranged for part, but technology does not also reach the intermediate player of senior player's level, and this two type toy is all inapplicable, that is to say to have lacked a kind of other helicopter model plane structure of intergrade from being stabilized to flexible transition in the prior art.

The utility model content

Technical problem to be solved in the utility model is the defective that overcomes prior art, and a kind of possess simultaneously stability and handling model helicopter control system are provided.

The utility model is achieved through the following technical solutions its above-mentioned purpose.

Model helicopter control system provided by the utility model, comprise control actuating unit, transmission mechanism, controlling organization and rotor mechanism four parts, described rotor mechanism for distribute up and down along main shaft, coaxial installation and respectively by the last rotor and the following rotor of interior outer shaft control rotation, the structure of its improvement is that described controlling organization comprises that control goes up Bel's self-balancing mechanism of rotor and control Bel-Xi La control structure two parts of rotor down, and the control actuating unit is successively by transmission mechanism and controlling organization control rotor mechanism.The utility model still adopts rotor to play balanced action, employing be stability very strong Bel's self-balancing mechanism control automatically.Following rotor play controlling party to effect, adopt the very high Bel-Xi La control structure of sensitivity to carry out ACTIVE CONTROL.The utility model is not when carrying out ACTIVE CONTROL, and Bel's self-balancing mechanism can be corrected external environment automatically, as air-flow etc., to the disturbance of helicopter, makes it can keep good stability.When carrying out ACTIVE CONTROL, as turn to etc., highly sensitive Bel-Xi La control structure can provide handling fully to helicopter.

The utility model is installed difference in functionality respectively on two rotors mechanism makes helicopter possessing under the prerequisite of stabilized flight, can control flexibly.Certainly under this total utility model design, also Bel's self-balancing mechanism can be installed in down on the rotor, Bel-Xi La control structure is installed on the rotor.Bel's self-balancing mechanism or Bel-Xi La control structure can be installed in respectively rotor structure above or below.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the internal structure schematic diagram of Fig. 1;

Fig. 3 is the STRUCTURE DECOMPOSITION figure of Fig. 1;

Fig. 4 is the partial enlarged drawing of A part among Fig. 2;

Fig. 5 is the STRUCTURE DECOMPOSITION figure of Fig. 4;

Fig. 6 is the partial enlarged drawing of B part among Fig. 2;

Fig. 7 is the STRUCTURE DECOMPOSITION figure of Fig. 6;

Fig. 8 be Bel-Xi La control structure around the rotating shaft structure of lifting up;

Fig. 9 is for driving the structural representation of Bel-Xi La control structure;

Figure 10 is the control structure schematic diagram of following rotor;

Figure 11 is the side view of Fig. 1;

Figure 12 is the utility model main shaft power system architecture schematic diagram.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described further.

A kind of two-rotor model helicopter as shown in Figure 1 is equipped with decorative shell 9 at the front end of body 6, and the rear end is equipped with empennage mechanism 7, and the main shaft 8 at middle part drives the balance sysmte 1 and steering 2 relative counter-rotatings of helicopters, shown in arrow among the figure.Fig. 2 is the structure after the structure among Fig. 1 is removed decorative shell 9, can find out the mounting structure of its inner each several part more in detail.

Detailed member as shown in Figure 3, whole two-rotor model helicopter can split into eight major parts: the balance sysmte 1 that is made of last rotor 12 and Bel's self-balancing mechanism 11; By the steering 2 of descending rotor 22, Bel-Xi La control structure 21 and wobbler 23 to constitute; 3, three steering wheels of control actuating unit that are made of three steering wheels 31,32 and 33 are distributed on the same circle, and relative angle is 120 °; The flying power mechanism 4 that constitutes by motor 41 and gear 42; The circuit structure 5 that constitutes by wireless transceiver circuit 51 and battery 52; By left and right sides frame 61,63, undercarriage 63 and between the body 6 that constitutes of syndeton; The empennage mechanism 7 that constitutes by caudal wing shaft 71, screw 72, balance wing 73, the hang down wing 74 and support bar 75; And by interior axle 81 and the outer shaft 82 nested main shafts that constitute 8.

The detailed structure of balance sysmte 1 is in conjunction with Fig. 4 and shown in Figure 5, Bel's self-balancing mechanism 11 comprises balancing pole 111 and is installed in the counterweight 112 at balancing pole 111 two ends, last rotor 12 comprises that rotor presss from both sides 121 and two and goes up rotary blade 122, and last rotor presss from both sides 121 two ends clamping rotary blades 122.Bel's self-balancing mechanism 11 and last rotor 12 are installed in the top of the interior axle 81 of main shaft 8 respectively by the

rotating shaft

113 and 123 perpendicular to main shaft 8, both do not connect at grade and by self-balancing pull bar 13.The rotating

shaft

113 and 123 of Bel's self-balancing mechanism 11 and last rotor 12 is parallel to each other, and all can fascinate around each axis of rotation, shown in arrow among Fig. 4.The last rotor of last rotor 12 presss from both sides 121 middle parts and forms a shaped as frame structure 124, shaped as frame structure 124 by rotating shaft 123 turning sets on interior 81.Top at interior axle 81 is provided with an axle bed 811, has groove 812 in the middle of the axle bed 811, fascinates up and down in axle bed 811 by 113 of rotating shafts in Bel's self-balancing mechanism 11 middle parts, and balancing pole 111 can slide in groove 812.Self-balancing pull bar 13 two ends are provided with

ball pivot cover

131 and 132, are mounted on Bel's self-balancing mechanism 11 respectively and are connected with 134 with ball pivot head 133 on the last rotor 12.Because the connection of self-balancing pull bar 13 makes Bel's self-balancing mechanism 11 and last rotor 12 fascinate synchronously in the process of flight, if the disturbance because of extraneous factor in the flight course causes main shaft 8 to tilt with respect to last rotor 12, Bel's self-balancing mechanism 11 can be corrected angle between main shaft 8 and the last rotor 12 by centrifugal principle so, keep both vertical, thereby play stable effect.Detailed operation principle can be with reference to the introduction of Chinese patent CN1496923A.

In conjunction with and the details of the visible described Bel of Fig. 6 and Fig. 7-Xi La control structure 21, the fin 212 that it comprises direction control lever 211 and is installed in direction control lever 211 two ends, following rotor 22 and Bel-Xi La control structure 21 is installed in the bottom of the outer shaft 82 of main shaft 8 respectively by the rotating

shaft

223 and 213 perpendicular to main shaft, both are vertical mutually and connect control actuating unit 3 by transmission mechanism respectively; The rotating shaft 223 of following rotor 22 and Bel-Xi La control structure 21 is parallel to each other with 213 and is vertical, the rotating shaft 223 of following rotor 22 and the dead in line of following rotor 22, and following rotor 22 rotates around its axis, shown in arrow among Fig. 6.Bel-Xi La control structure 21 can be fascinated around its rotating shaft 213, shown in arrow among Fig. 6.

Following rotor 22 comprises 221 and two following rotary blades 222 of two following rotor folders, following rotor presss from both sides 221 front end clamping rotary blades 222, in the rotating shaft 223 of the following rotor of terminal insertion, side at rotor folder 221 also is provided with eccentricity control end 224, wobbler 23 go up dish 232 by linkage connect 224 controls of eccentricity control end down rotor 22 rotate around its rotating shaft 223.The middle part of the direction control lever 211 of described Bel-Xi La control structure 21 is socketed on the main shaft 8 by a frame structure and rotates, frame structure comprises inner frame 214 and the outside framework two parts that are made of

framing component

215 and 216, inner frame 214 is lifted up around the rotating shaft 213 of Bel-Xi La control structure 21, outside framework is lifted up around direction control lever 211 axis, the direction that interior housing is lifted up is vertical mutually, as shown in Figure 8.Be fixedly mounted on the outside framework to control lever 211, rotation is plugged on the inner frame 214, and outside framework rotates and drives 211 rotations of direction control lever, and wobbler 23 connects the angle of outside framework two ends controlling party to the fin 212 of control lever end by linkage.

Described transmission mechanism comprises three groups of

linkages

24,25,26 and wobbler; The outer shaft 82 of wobbler and main shaft 8 is rotatably assorted by ball pivot 234, comprises upper lower burrs 232,231, and upper lower burrs 232,231 is rotatably assorted with ball pivot 234 by the spring 233 that is embedded in the wobbler center.Lower wall 231 sides stretch out three ball pivot nodes and an orientation lever 238, orientation lever 238 are fixed on guide slot 239 on the body and are limited in the groove and vertically slide, in conjunction with Fig. 3 and shown in Figure 11.The ball pivot node of lower wall 231 connects steering wheel 33 by first group of linkage 26 (comprising three connecting rods); Last dish 232 sides four the ball pivot nodes that stretch out, four ball pivot nodes are vertical mutually, last dish 232 two relative ball pivot nodes constitute one group, connect the eccentricity control end 224 of rotors 22 down by second group of linkage 25, the framing component 215 of the outside framework by the 3rd group of linkage 24 closure control levers 211 middle parts.

The 3rd group of linkage 24 of the framing component 215 of the outside framework of going up dish 232 and direction control lever 211 middle parts of described connection wobbler 23 comprises the lower link 242 that is connected dish 232, the last connecting rod 241 of the framing component 215 of the outside framework of closure control lever and galianconism connect the leverage 243 of connecting rod 241 in lower link 242, the long-armed connection, the fulcrum 244 of leverage 243 is located on the outer shaft 82 of main shaft, as shown in Figure 9, be expression more clearly, Fig. 9 only illustrates one group of mechanism.When last dish 232 tilts, can spur lower link 242, the action amplification that lower link 242 will be gone up dish 232 inclinations by leverage 243 is delivered to connecting rod 241, and last connecting rod 241 drives outside frameworks and rotates, thereby changes the pitch of fin 212.More outstanding handling in order to have, the utility model makes wobbler 23 have higher sensitivity by the action that leverage 243 amplifies wobbler 23.

Second group of linkage 25 of the eccentricity control end 224 of going up dish 232 and following rotor 22 of described connection wobbler 23 comprises the lower link 252 that is connected dish, the last connecting rod 251 of the eccentricity control end 224 of rotor 22 and long-armed connection lower link 252, galianconism connect the leverage 253 of going up connecting rod 251 under connecting, the fulcrum 254 of leverage 253 is located on the outer shaft 82 of main shaft, as shown in figure 10, be expression more clearly, Figure 10 only illustrates one group of mechanism.When last dish 232 tilts, can spur lower link 252, lower link 252 will be gone up actions that dish 232 tilts by leverage 253 and dwindle and be delivered to connecting rod 251, and last connecting rod 251 drives eccentricity control ends 224, thus the pitch of rotor 22 under the change.Because in flight course, the pitch of following rotor 22 changes does not have fin 212 greatly, in order to adopt two pitch of same wobbler 23 controls to change different structures, the utility model dwindles the action of wobbler 23 by leverage 253, make structure more simplify, and have higher stablizing.Adopt said structure, the utlity model has the equal flexibility of WO02/064425A2, but structure more simplifies, and than the Stability Analysis of Structures of WO02/064425 A2.

For leverage 243 can rotate synchronously with main shaft, the utility model on the outer shaft 82 of main shaft, wobbler 23 connects between the 3rd group of linkage 24 of outside frameworks and is provided with two shelves posts 28 that extend along main shaft 8 directions.

As shown in figure 11, the action of centrifugal force drive that Bel's self-balancing mechanism 11 is produced by rotation is gone up rotor 12 and is fascinated synchronously, corrects the non-equilibrium state of helicopter in flight course automatically, keeps fuselage stable.By fascinating up and down of wobbler 23, the control down pitch of the fin of rotor 22 and Bel-Xi La control structure 21 changes, and the rising of control helicopter, descends and action such as spiral.

The interior

outer shaft

81,82 of main shaft 8 of the present utility model provides rotary power by a motor 41,

outer shaft

81,82 relative counter-rotatings in described motor 41 drives respectively by gear 42, as shown in figure 12.Gear 42 comprises the driving gear 421 that is fixed on the machine shaft, by a pinion 422 and the band gear that small pulley 423 coaxial rotation constitute, is fixed on the gear wheel 424 on the outer shaft 82, big belt wheel 425 and be with 426 synchronously on the axle 81 in being fixed on; Described gear wheel 424 pinion mates 422 are with 426 to be enclosed within on big belt wheel 425 and the small pulley 423 synchronously; Driving gear 421 is by band gear drive gear wheel 424 and big belt wheel 425 relative backwards rotation.

Claims

1. model helicopter control system, comprise control actuating unit, transmission mechanism, controlling organization and rotor mechanism four parts, described rotor mechanism for distribute up and down along main shaft, coaxial installation and respectively by the last rotor and the following rotor of interior outer shaft control rotation, it is characterized in that described controlling organization comprises that control goes up Bel's self-balancing mechanism of rotor and control Bel-Xi La control structure two parts of rotor down, the control actuating unit is successively by transmission mechanism and controlling organization control rotor mechanism.

2. control system according to claim 1, it is characterized in that described Bel's self-balancing mechanism comprises balancing pole and the counterweight that is installed in the balancing pole two ends, last rotor and Bel's self-balancing mechanism are installed in the top of the interior axle of main shaft respectively by the rotating shaft perpendicular to main shaft, both do not connect at grade and by the self-balancing pull bar; The rotating shaft of last rotor and Bel's self-balancing mechanism is parallel to each other, and all can fascinate around each axis of rotation.

3. control system according to claim 1, it is characterized in that described Bel-Xi La control structure comprises direction control lever and the fin that is installed in direction control lever two ends, following rotor and Bel-Xi La control structure is installed in the bottom of the outer shaft of main shaft respectively by the rotating shaft perpendicular to main shaft, both are vertical mutually and connect the control actuating unit by transmission mechanism respectively; The rotating shaft of following rotor and Bel-Xi La control structure is parallel to each other and is vertical, and the rotating shaft of following rotor overlaps with the backspin wing axis, and following rotor rotates around its axis, and Bel-Xi La control structure can be fascinated around its rotating shaft.

4. control system according to claim 3 is characterized in that described control actuating unit comprises three steering wheels, and transmission mechanism comprises three groups of linkages and wobbler; The outer shaft of wobbler and main shaft is rotatably assorted by ball pivot, comprise upper lower burrs, lower wall side stretch out three ball pivot nodes and an orientation lever, the guide slot that orientation lever is fixed on the body is limited in slip vertically in the groove, and the ball pivot node of lower wall connects steering wheel by one group of linkage; Last dish side four the ball pivot nodes that stretch out, four ball pivot nodes are vertical mutually, and two ball pivot nodes that last dish dish is relative constitute one group and connect rotor or direction control lever down by one group of linkage respectively.

5. control system according to claim 4, it is characterized in that rotor comprises two following rotor folders and two following rotary blades down, following rotor folder front end clamping rotary blade, in the rotating shaft of the following rotor of terminal insertion, the side that presss from both sides at rotor also is provided with the eccentricity control end, and the dish of going up of wobbler rotates around its rotating shaft by rotor under the control of linkage connection eccentricity control end.

6. control system according to claim 4, the linkage that it is characterized in that described connection wobbler and direction control lever comprises the lower link that is connected dish, the last connecting rod of closure control lever and galianconism connect the leverage of connecting rod in lower link, the long-armed connection, and the fulcrum of leverage is located on the main shaft; The linkage of described connection wobbler and following rotor comprises the lower link that is connected dish, and the last connecting rod of rotor and long-armed connection lower link, galianconism connect the leverage of going up connecting rod under connecting, and the fulcrum of leverage is located on the main shaft.

7. control system according to claim 6, the middle part that it is characterized in that described control lever is socketed on the main shaft by a frame structure rotates, frame structure comprises inner frame and outside framework two parts, inner frame is lifted up around the rotating shaft of Bel-Xi La control structure, outside framework is lifted up around direction control lever axis, the direction control lever is fixedly mounted on the outside framework, and wobbler connects the angle of outside framework two ends controlling party to the fin of control lever end by linkage.

8. control system according to claim 7 is provided with two shelves posts that extend along major axes orientation between the linkage that it is characterized in that on the described main shaft, wobbler connects outside framework.

9. according to each described control system of claim 1 to 8, it is characterized in that the interior outer shaft of described main shaft provides rotary power by a motor, the relative counter-rotating of outer shaft in described motor drives respectively by gear.

10. control system according to claim 6, it is characterized in that described gear comprises the driving gear that is fixed on the machine shaft, by a pinion and the band gear that the small pulley coaxial rotation constitutes, be fixed on the gear wheel on the outer shaft, axle is gone up big belt wheel and synchronous band in being fixed on; Described gear wheel pinion mate, band is enclosed within on big belt wheel and the small pulley synchronously; Driving gear is by band gear drive gear wheel and the big relative backwards rotation of belt wheel.