CN208947598U - A kind of agricultural unmanned helicopter main rotor system with balance wing - Google Patents

Abstract

The agricultural unmanned helicopter main rotor system with balance wing that the utility model discloses a kind of, including balance wing mechanism, main rotor hub, rotation pitch and main rotor displacement bindiny mechanism；Main rotor hub includes main rotor hub pedestal, and balance wing mechanism includes balance wing seat, and balance wing seat is articulated with the top of main rotor hub pedestal；Rotating pitch includes the rotating disk seat of honour, main rotor displacement bindiny mechanism includes torsion swing arm and torsion connecting rod, one end of torsion swing arm and one end of torsion connecting rod are hinged, and the other end and main rotor hub pedestal of torsion swing arm are hinged, the other end and rotating disk seat of honour universal hinging of torsion connecting rod.The main rotor system of the utility model improves the stability of flight, while avoiding traditional the problem of raising main rotor plate center of gravity because of setting balance wing mechanism, effectively increases the flying quality of unmanned helicopter.

Description

A kind of agricultural unmanned helicopter main rotor system with balance wing

Technical field

The utility model relates to unmanned helicopter, more specifically a kind of main rotation of agricultural unmanned helicopter with balance wing Wing system.

Background technique

In the prior art, agricultural unmanned helicopter is nearly all come by model plane differentiation, usually all inherits the spy of model plane Point, flight strong flexibility, stability is not high, and service life is not grown, it is difficult to meet the requirement of agricultural operation.Especially main rotor system The performance of system has decisive impact the working performance of agricultural unmanned helicopter.

The main rotor system device of agricultural unmanned helicopter mostly uses greatly no balance wing to manipulate in the prior art, sensitivity mistake Height, it is higher to winged control personnel requirement, it is unfavorable for the application and popularizations of agricultural unmanned helicopter；Also have using increase balance wing mechanism come The scheme for reducing sensitivity, increasing flight stability, but due to increasing the center of gravity for balancing wing mechanism and raising main rotor, seriously Influence the flying quality of helicopter.

In addition, there is also bright for the structure of the rotation pitch of agricultural unmanned helicopter main rotor system device in the prior art Aobvious defect generallys use conventional roller bearing and passes connection, because of the conventional inside and outside circle of roller bearing between rotating disk and pitch There are larger axial gaps between roller, and when rotating pitch and doing axially reciprocating, it is dynamic to generate one section of transmitting for axial gap The idle stroke of power reduces helicopter flight smoothness to generate transmitting delay and error；Rotating pitch in work should Carrying radial pressure will also carry the axial compressive force to pump, the rotation pitch of conventionally employed conventional roller bearing It is poor to carry axial pressure, seriously affects the service life of rotation pitch, it is difficult to meet the long-range model plane of take-off weight Agricultural unmanned helicopter.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, provide it is a kind of with balance wing it is agricultural nobody go straight up to Owner's rotor system.

To achieve the above object, the utility model use following technical scheme: it is a kind of with balance wing it is agricultural nobody go straight up to Owner's rotor system, including balance wing mechanism, main rotor hub, rotation pitch and main rotor displacement bindiny mechanism；The master Rotor head includes main rotor hub pedestal, and the balance wing mechanism includes balance wing seat, and the balance wing seat is articulated with the main rotation The top of rotor hub pedestal；The rotation pitch includes the rotating disk seat of honour, and main rotor displacement bindiny mechanism includes torsion pendulum Arm and torsion connecting rod, one end of the torsion swing arm and one end of the torsion connecting rod are hinged, the other end of the torsion swing arm It is hinged with the main rotor hub pedestal, the other end and rotating disk seat of honour universal hinging of the torsion connecting rod.

Its further technical solution are as follows: the main rotor hub further includes main rotor holder, main rotor holder arm, main rotor Axis；The main rotor holder is hingedly set to the two sides of the main rotor hub pedestal, the main rotor holder arm be fastenedly connected in On main rotor holder, the upper end of the main rotor shaft is fixedly connected with the main rotor hub pedestal.

Its further technical solution are as follows: the rotation pitch includes pitch ontology, angle touching ball bearing, center knuckle axis It holds, seat, lower fixed screw and upper fixed screw under rotating disk；The pitch ontology is equipped with mounting hole, and ball axis is touched at the angle It holds and is embedded in the mounting hole, the lower fixed screw is fastenedly connected in the edge of mounting hole, to compress the angle touching ball axis It holds；Seat is embedded in the inner hole of the angle touching ball bearing under the rotating disk, and the center knuckle bearing is embedded in the rotation Under disk in the fixation hole of seat；The rotating disk seat of honour is fastenedly connected by fixed screw and seat under the rotating disk.

Its further technical solution are as follows: main rotor displacement bindiny mechanism further includes lower link, upper connecting rod and double end Swing arm；The double end swing arm is articulated on the main rotor holder arm, and the both ends of the lower link are respectively and in the rotating disk Seat and the double end swing arm universal hinging, the both ends of the upper connecting rod are universal with the double end swing arm and the balance wing seat respectively Hingedly.

Its further technical solution are as follows: the balance wing mechanism further includes balance wing bar, balance wing plate and second level swing arm； The second level swing arm is articulated with the both ends of balance wing seat, and the balance wing bar passes through the balance wing seat and is fixedly connected on described two In grade swing arm, the balance wing plate is fixedly connected on the both ends of the balance wing bar.

Its further technical solution are as follows: the balance wing mechanism further includes sliding shoe, guide post, level-one swing arm, actively connects Bar and second level even the rod；The guide post is fixedly connected on the top of the main rotor hub pedestal, and the sliding shoe is slidably socketed In in the guide post, the sliding shoe two sides are hinged with the level-one swing arm, one end of the level-one swing arm and the active One end of connecting rod is hinged, the other end of the level-one swing arm and one end universal hinging of the second level even the rod, the second level even the rod Other end universal hinging in the second level swing arm, the other end of the drive connecting rod and the torsion swing arm are hinged.

The beneficial effect of the utility model compared with prior art is: the utility model it is a kind of with balance wing it is agricultural nobody Helicopter Main rotor system improves the stability of flight, simultaneously by the way that balance wing mechanism is arranged at the top of main rotor hub pedestal Traditional the problem of raising main rotor plate center of gravity because of setting balance wing mechanism is avoided, flying for unmanned helicopter is effectively increased Row performance.It is slided in addition, being arranged the sliding shoe for balancing wing mechanism in independent guide post, avoids traditional balance wing machine Interference problem of the radial force that structure sliding block generates when moving along main rotor shaft to main rotor shaft.In addition, the rotation of rotation pitch Disk ontology is avoided and is inclined using the agricultural unmanned helicopter rotation of tradition of common rolling bearing using angle touching ball bearing transmitting movement The axial gap being driven between the rotating disk and pitch of swash plate is excessive and the poor influence service life of axial compressive force load-carrying properties Problem improves rotation pitch transmitting accuracy of action and timeliness, improves the durability of rotation pitch.

The above description is merely an outline of the technical solution of the present invention, in order to better understand the utility model technology Means can be implemented in accordance with the contents of the specification, and in order to allow above and other purpose of the utility model, feature and excellent Point can be more clearly understood, and special below to lift preferred embodiment, detailed description are as follows.

Detailed description of the invention

Fig. 1 is a kind of solid of the agricultural unmanned helicopter main rotor system specific embodiment with balance wing of the utility model Figure；

Fig. 2 is part in a kind of agricultural unmanned helicopter main rotor system specific embodiment with balance wing of the utility model Perspective view；

Fig. 3 is to balance in a kind of agricultural unmanned helicopter main rotor system specific embodiment with balance wing of the utility model The partial exploded view of wing mechanism；

Fig. 4 is to rotate in a kind of agricultural unmanned helicopter main rotor system specific embodiment with balance wing of the utility model The schematic diagram of the section structure of pitch；

Fig. 5 is to rotate in a kind of agricultural unmanned helicopter main rotor system specific embodiment with balance wing of the utility model The assembling schematic diagram of pitch.

Appended drawing reference

100, wing mechanism is balanced；1001, wing plate is balanced；1002, wing bar is balanced；1003, balance wing seat；1004, sliding shoe； 1005, guide post；1006, level-one swing arm；1007, drive connecting rod；1008, second level even the rod；1009, second level swing arm；200, it rotates Pitch；2001, pitch ontology；2002, the rotating disk seat of honour；2003, ball bearing is touched at angle；2004, center knuckle bearing； 2005, seat under rotating disk；2006, lower fixed screw；2007, upper fixed screw；2008, connective pole mounting hole is driven；3001, main Rotor head pedestal；3002, main rotor holder；3003, main rotor holder arm；3004, main rotor shaft；4001, lower link；4002, Upper connecting rod；4003, torsion connecting rod；4004, torsion swing arm；4005, double end swing arm.

Specific embodiment

In order to more fully understand the technology contents of the utility model, combined with specific embodiments below to the skill of the utility model Art scheme is further described and illustrates, but not limited to this.

It should be appreciated that herein, relational terms such as first and second and the like are used merely to an entity/behaviour Work/object is distinguished with another entity/operation/object, without necessarily requiring or implying these entity/operation/objects Between there are any actual relationship or orders.

It is also understood that the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, So that the process, method, article or the system that include a series of elements not only include those elements, but also including not having The other element being expressly recited, or further include for this process, method, article or the intrinsic element of system.Do not having In the case where having more limitations, the element that is limited by sentence "including a ...", it is not excluded that include the element process, There is also other identical elements in method, article or system.

As shown in Figs. 1-5, the utility model provides a kind of agricultural unmanned helicopter main rotor system with balance wing, packet Include balance wing mechanism 100, main rotor hub, rotation pitch 200 and main rotor displacement bindiny mechanism；Main rotor hub includes main rotation Rotor hub pedestal 3001, balance wing mechanism 100 includes balance wing seat 1003, and balance wing seat 1003 is articulated with main rotor hub pedestal 3001 top；Rotating pitch 200 includes the rotating disk seat of honour 2002, and main rotor displacement bindiny mechanism includes torsion swing arm 4004 With torsion connecting rod 4003, one end of torsion swing arm 4004 and one end of torsion connecting rod 4003 are hinged, torsion swing arm 4004 it is another End is hinged with main rotor hub pedestal 3001, the other end and 2002 universal hinging of the rotating disk seat of honour of torsion connecting rod 4003.

By the setting of whole machine balancing wing mechanism 100 at 3001 top of main rotor hub pedestal, avoid traditional because increasing balance Wing operating-controlling mechanism, raising main rotor center of gravity influences Helicopter flight performance problem.

Further, main rotor hub further includes main rotor holder, main rotor holder arm 3003, main rotor shaft 3004；Main rotation Wing holder 3002 is hingedly set to the two sides of main rotor hub pedestal 3001, and main rotor holder arm 3003 is fastenedly connected to be pressed from both sides in main rotor On seat 3002, the upper end of main rotor shaft 3004 is fixedly connected with main rotor hub pedestal 3001.

Further, rotation pitch 200 includes pitch ontology 2001, angle touching ball bearing 2003, center knuckle bearing 2004, seat 2005, lower fixed screw 2006 and upper fixed screw 2007 under rotating disk；Pitch ontology 2001 is equipped with installation Hole, angle touching ball bearing 2003 are embedded in mounting hole, and lower fixed screw 2006 is fastenedly connected in the edge of mounting hole, to compress angle Touch ball bearing 2003；Seat 2005 is embedded in the inner hole of angle touching ball bearing 2003 under rotating disk, and center knuckle bearing 2004 is embedded in Under rotating disk in the fixation hole of seat 2005；The rotating disk seat of honour 2002 passes through upper fixed screw 2007 and seat 2005 under rotating disk It is fastenedly connected, and compresses the outer ring of center knuckle bearing 2004 and the inner ring of angle touching ball bearing 2003 simultaneously, rotate pitch 200 Lower end by drive connective pole mounting hole 2008 connect with the Servo-controller hinge of unmanned helicopter.

The power of Servo-controller first by hinge is transmitted to pitch ontology 2001 when work, then from pitch ontology 2001 outer rings for being transmitted to angle touching ball bearing 2003 are transmitted to its inner ring by in-between ball, then touch ball bearing from angle 2003 inner ring is transmitted on the rotating disk seat of honour 2002.

The rotating disk ontology of pitch 200 is rotated using angle touching 2003 transmitting of ball bearing movement, is avoided using common rolling The axial gap being driven between the rotating disk and pitch of the agricultural unmanned helicopter rotation pitch 200 of the tradition of dynamic bearing is excessive With the poor influence service life problem of axial compressive force load-carrying properties.Improve rotation pitch 200 transmit accuracy of action and Timeliness improves the durability of rotation pitch 200.

Further, main rotor displacement bindiny mechanism further includes lower link 4001, upper connecting rod 4002 and double end swing arm 4005；Double end swing arm 4005 is articulated on main rotor holder arm 3003, the both ends of lower link 4001 respectively with the rotating disk seat of honour 2002 and 4005 universal hinging of double end swing arm, the both ends of upper connecting rod 4002 respectively with double end swing arm and the universal hinge of balance wing seat 1003 It connects.

Further, balance wing mechanism 100 further includes balance wing bar 1002, balance wing plate 1001 and second level swing arm 1009；Second level swing arm 1009 is articulated with the both ends of balance wing seat 1003, and balance wing bar 1002 passes through the fixed company of balance wing seat 1003 It connects in second level swing arm 1009, balance wing plate 1001 is fixedly connected on the both ends of balance wing bar 1002.

Further, balance wing mechanism 100 further includes sliding shoe 1004, guide post 1005, level-one swing arm 1006, active Connecting rod 1007 and second level even the rod 1008；Guide post 1005 is fixedly connected on the top of main rotor hub pedestal 3001, sliding shoe 1004 are slidably socketed in guide post 1005, and 1004 two sides of sliding shoe are hinged with level-one swing arm 1006, and the one of level-one swing arm 1006 Hold, the other end of level-one swing arm 1006 and one end universal hinging of second level even the rod hinged with one end of drive connecting rod 1007, second level For the other end universal hinging of connecting rod in second level swing arm 1009, the other end of drive connecting rod 1007 and torsion swing arm 4004 are hinged. It balances and provides displacement power by drive connecting rod 1007 when wing mechanism 100 works.

The sliding shoe 1004 for balancing wing mechanism 100 is arranged in independent guide post 1005 and is slided, is avoided traditional The radial force that balance 100 sliding block of wing mechanism generates when moving along main rotor shaft 3004 shows the interference problem of main rotor shaft 3004 Work improves the flying quality of helicopter.

The course of work of entire main rotor system is as follows: all components described above first remove pitch ontology 2001, angle touching ball bearing 2003 outer ring and lower fixed screw 2006 other than, in unmanned helicopter flight all with main rotor 3004 high speed rotation of axis, and pitch 200 is rotated then by driving connective pole mounting hole 2008 to connect with Servo-controller hinge.From And the movement of Servo-controller has driven the movement of entire rotation pitch 200, and pitch 200 is rotated further through swing arm and connecting rod Movement is transmitted to respectively on main rotor holder 3002 and balance wing bar 1002, control main rotor holder 3002 and balance wing are passed through The angle change of bar 1002 controls the variation of the screw pitch of main rotor and balance wing, so that realizing makes that unmanned helicopter accordingly The purpose of movement.

In summary: a kind of agricultural unmanned helicopter main rotor system with balance wing of the utility model passes through in main rotor Setting balance wing mechanism 100, improves the stability of flight at the top of hub pedestal 3001, while avoiding traditional because setting balances Wing mechanism 100 and the problem of raise main rotor plate center of gravity, effectively increase the flying quality of unmanned helicopter.In addition, will balance The setting of sliding shoe 1004 of wing mechanism 100 is slided in independent guide post 1005, and it is sliding to avoid traditional balance wing mechanism 100 Interference problem of the radial force that block generates when moving along main rotor shaft 3004 to main rotor shaft 3004.In addition, rotation pitch 200 rotating disk ontology avoids the agricultural nothing of tradition using common rolling bearing using angle touching 2003 transmitting of ball bearing movement The axial gap that is driven is excessive between the rotating disk and pitch of people's helicopter rotation pitch 200 and axial compressive force load-carrying properties Poor influence service life problem improves rotation pitch 200 and transmits accuracy of action and timeliness, improves rotation The durability of pitch 200.

The above-mentioned technology contents that the utility model is only further illustrated with embodiment, in order to which reader is easier to understand, But the embodiments of the present invention is not represented is only limitted to this, any technology done according to the utility model extends or recreation, By the protection of the utility model.The protection scope of the utility model is subject to claims.

Claims (6)

1. a kind of agricultural unmanned helicopter main rotor system with balance wing, which is characterized in that including balancing wing mechanism, main rotor Hub, rotation pitch and main rotor displacement bindiny mechanism；The main rotor hub includes main rotor hub pedestal, the balance wing machine Structure includes balance wing seat, and the balance wing seat is articulated with the top of the main rotor hub pedestal；The rotation pitch includes rotation The turntable seat of honour, main rotor displacement bindiny mechanism include torsion swing arm and torsion connecting rod, one end of the torsion swing arm and institute The one end for stating torsion connecting rod is hinged, and the other end of the torsion swing arm and the main rotor hub pedestal are hinged, the torsion connecting rod The other end and rotating disk seat of honour universal hinging.

2. a kind of agricultural unmanned helicopter main rotor system with balance wing according to claim 1, which is characterized in that institute Stating main rotor hub further includes main rotor holder, main rotor holder arm, main rotor shaft；The main rotor holder is hingedly set to described The two sides of main rotor hub pedestal, the main rotor holder arm are fastenedly connected on main rotor holder, the upper end of the main rotor shaft It is fixedly connected with the main rotor hub pedestal.

3. a kind of agricultural unmanned helicopter main rotor system with balance wing according to claim 1, which is characterized in that institute State rotation pitch include pitch ontology, angle touching ball bearing, center knuckle bearing, seat under rotating disk, lower fixed screw and Upper fixed screw；The pitch ontology is equipped with mounting hole, and the angle touching ball bearing is embedded in the mounting hole, described lower solid The edge that fastened by screw is connected to mounting hole is determined, to compress the angle touching ball bearing；Seat is embedded in the angle under the rotating disk In the inner hole for touching ball bearing, the center knuckle bearing is embedded under the rotating disk in the fixation hole of seat；In the rotating disk Seat is fastenedly connected by fixed screw and seat under the rotating disk.

4. a kind of agricultural unmanned helicopter main rotor system with balance wing according to claim 2, which is characterized in that institute Stating main rotor displacement bindiny mechanism further includes lower link, upper connecting rod and double end swing arm；The double end swing arm is articulated with the master On rotor holder arm, the both ends of the lower link are described respectively with the rotating disk seat of honour and the double end swing arm universal hinging The both ends of upper connecting rod respectively with the double end swing arm and the balance wing seat universal hinging.

5. a kind of agricultural unmanned helicopter main rotor system with balance wing according to claim 1, which is characterized in that institute Stating balance wing mechanism further includes balance wing bar, balance wing plate and second level swing arm；The second level swing arm is articulated with balance wing seat Both ends, the balance wing bar pass through the balance wing seat and are fixedly connected in the second level swing arm, and the balance wing plate is fixed to be connected It is connected to the both ends of the balance wing bar.

6. a kind of agricultural unmanned helicopter main rotor system with balance wing according to claim 5, which is characterized in that institute Stating balance wing mechanism further includes sliding shoe, guide post, level-one swing arm, drive connecting rod and second level even the rod；The guide post is fixed It is connected to the top of the main rotor hub pedestal, the sliding shoe is slidably socketed in the guide post, the sliding shoe two sides It is hinged with the level-one swing arm, one end of the level-one swing arm and one end of the drive connecting rod are hinged, the level-one swing arm One end universal hinging of the other end and the second level even the rod, the other end universal hinging of the second level even the rod is in the second level swing arm On, the other end of the drive connecting rod and the torsion swing arm are hinged.