CN204264453U - A kind of Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter - Google Patents

A kind of Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter Download PDF

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Publication number
CN204264453U
CN204264453U CN201420605077.7U CN201420605077U CN204264453U CN 204264453 U CN204264453 U CN 204264453U CN 201420605077 U CN201420605077 U CN 201420605077U CN 204264453 U CN204264453 U CN 204264453U
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tail
rotor
core
permanent seat
steering wheel
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CN201420605077.7U
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付维
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SHENZHEN GKXN TECHNOLOGY CO., LTD.
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SHENZHEN WAYULINK TECHNOLOGY Co Ltd
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Abstract

The utility model discloses a kind of Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter, and it comprises transmission device and is pressed from both sides by the tail-rotor of transmission mechanism control displacement, and tail-rotor folder is fixed with tail-rotor; Transmission device comprises steering wheel rocking arm, sliding active joint arm, turning joint permanent seat, permanent seat of loosing core, flange bearing and tail and to loose core axle, one end of steering wheel rocking arm is fixed on tail actuator, the other end of steering wheel rocking arm is provided with guide groove, one end of sliding active joint arm is fixed through this guide groove, the other end of sliding active joint arm is fixed on turning joint permanent seat, turning joint permanent seat with to loose core permanent seat pivot joint, tail axle of loosing core is arranged through the axle center of permanent seat of loosing core.In this transmission device, to be loosed core axle by the push-and-pull of steering wheel rocking arm and sliding active joint arm, turning joint permanent seat and the tail that is connected with permanent seat of loosing core, make tail loose core axle do in the axle center of tail transverse axis left and right back and forth movement, thus realize tail-rotor folder variable pitch contro l.

Description

A kind of Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter
Technical field
The utility model belongs to aircraft manufacture field, in IPC classification, belong to the large class of B64, is specifically related to a kind of Drawing-Core tail-rotor hub distance changing mechanism of the industrial grade electric unmanned helicopter for agriculture and forestry plant protection (plant protection) operation.
Background technology
Along with depopulated helicopter is in the applied research of every profession and trade, people all the more now depopulated helicopter are day by day remarkable in the effect of social production and life various aspects.Use modern new and high technology mechanical equipment, can not only increase work efficiency and quality, reduction operating cost, the risk of personnel's operation can also be reduced, the protection security of the lives and property.Wherein, agricultural depopulated helicopter is have a lot of advantages compared with conventional equipment for plant protection operation, and its operating efficiency is 8 times that prevent and treat most effective overhead atomizing cone operating efficiency in the equipment for plant protection of current ground, is 30 times of artificial knapsack sprayer operating efficiency.Because traditional equipment for plant protection falls behind, add that using method is improper, can not evenly dispenser; cause agricultural chemicals degree of utilization extremely low; only have the agricultural chemicals of about 30% to be used effectively, the agricultural chemicals of about 70% does not only play the effect of pest control, also causes gross pollution to ecology environment.Agricultural depopulated helicopter adopts ultra low volume spray, and can save the water of 90% and the agricultural chemicals of 30%, pesticide efficacy reaches more than 60%, and the cost completing same working area is also lower than traditional agricultural machinery.
General; for agriculture and forestry plant protection operation agricultural depopulated helicopter, mainly comprise flying platform (fixed-wing, single rotor, many rotors), GPS fly control, spraying mechanism three part, by ground remote control or GPS fly control; realize spraying operation, can spraying agent, seed, pulvis etc.
Wherein, traditional tail-rotor hub displacement that existing agricultural depopulated helicopter uses, as shown in Figure 1, its tail-rotor structure 2 that there is drive mechanism 1 and controlled displacement by drive mechanism 1, wherein, drive mechanism 1 adopts connecting rod slider-type structure usually, this traditional drive mechanism is complicated, and transmission line is tortuous, and slide block transmission has when axial displacement work and radially wobbles interference, displacement efficiency moves two sections of obviously decay at slide block, makes displacement effect present nonlinearities change.Slide block swings interference and causes the stressed increasing of steering wheel, and the torsion of displacement loss increases, and affect the smooth and easy and effect of displacement, steering wheel wearing and tearing increasing, have impact on the service life of Servo-controller, can make vector operation failure time serious.
For this reason, one section of application number is the patent of invention of 201410274415.8, disclose one to take photo by plane helicopter adjustable tail distance changing mechanism, it comprises tail displacement adjusting seat, described tail displacement adjusting seat is installed tail displacement adjustment slide block, tail displacement adjustment slide block is arranged on tail-rotor turning cylinder, installs tail-rotor hub in the end of tail-rotor turning cylinder; Arrange guide groove in the both sides of described tail displacement adjusting seat, arrange orienting lug in the both sides of tail displacement adjustment slide block, orienting lug is arranged in guide groove; Put connecting portion at the bottom equipment of described tail displacement adjusting seat, connecting portion is connected with pull bar by bearing.Described tail displacement adjustment slide block is fixed on tail-rotor turning cylinder by nut.Described displacement adjusting seat and tail displacement adjustment slide block are fixed by the bolt be arranged in guide groove.Although this invention decreases the diastema of physical construction, simplify physical construction, its slide block transmission still has when axial displacement work and radially wobbles interference, and displacement efficiency moves two sections of obviously decay at slide block, makes displacement effect present nonlinearities change.
Utility model content
Therefore, for above-mentioned problem, the utility model provides a kind of Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter, simplify existing tail distance changing mechanism, achieve displacement Linear transmission, thus improve displacement efficiency and steering wheel service life, and then solve the deficiency of prior art.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is, a kind of Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter, comprises transmission device and is pressed from both sides by the tail-rotor of transmission mechanism control displacement, and tail-rotor folder is fixed with tail-rotor; Wherein, described transmission device comprises steering wheel rocking arm, sliding active joint arm, turning joint permanent seat, permanent seat of loosing core, flange bearing and tail and to loose core axle, one end of steering wheel rocking arm is fixed on tail actuator, the other end of steering wheel rocking arm is provided with guide groove, one end of sliding active joint arm is fixed through this guide groove, the other end of sliding active joint arm is fixed on turning joint permanent seat, turning joint permanent seat and a pivot joint of fixedly loosing core, tail is arranged through the axle center of axle permanent seat of loosing core; Steering wheel rocking arm, sliding active joint arm, turning joint permanent seat, permanent seat of loosing core, flange bearing and tail axle of loosing core to be connected formation transmission device by screw, to be loosed core axle by the push-and-pull of steering wheel rocking arm and sliding active joint arm, turning joint permanent seat and the tail that is connected with permanent seat of loosing core, make tail loose core axle do in the axle center of tail transverse axis left and right back and forth movement, thus realize tail-rotor folder variable pitch contro l.
Further, this Drawing-Core tail-rotor hub distance changing mechanism also comprises coda wave casing, the side of coda wave casing arranges tail-rotor structure, the opposite side of coda wave casing connects tail actuator, transmission device runs through coda wave casing and tail actuator and arranges, concrete, the steering wheel rocking arm rotary connection of transmission device is in tail actuator, and the tail of transmission device axle of loosing core is arranged through the axle center of coda wave casing and tail-rotor structure successively.
Further; described tail actuator comprises tail actuator body, steering wheel permanent seat and steering wheel over cap; one end of steering wheel rocking arm is rotatable is arranged at tail actuator body interior; tail actuator body is located on steering wheel permanent seat; steering wheel permanent seat is fixedly connected with coda wave casing by screw, and the top that steering wheel over cap is covered on tail actuator body is with by airtight for this tail actuator body.
Further, described tail-rotor structure comprises tail transverse axis fixed type bearing, tail transverse axis, tail pushing seat, tail-rotor folder push-pull arm, tail-rotor folder, tail T head and tail oar, one end of tail transverse axis is fixed on coda wave casing through after tail transverse axis fixed type bearing, the other end of tail transverse axis is fixedly connected with tail T head, tail T head is connected with tail pushing seat by tail-rotor folder push-pull arm, tail pushing seat presss from both sides with tail-rotor and is connected, tail-rotor folder fixed clamp tail-rotor.Tail transverse axis, tail pushing seat, tail-rotor folder push-pull arm, tail-rotor folder, tail T head are linked together by screw.Tail to be loosed core in axle center that axle is inserted into tail transverse axis and is arranged.
Further, described tail transverse axis is heat treated stiffened hollow shaft.
Drawing-Core tail-rotor hub distance changing mechanism of the present utility model operationally, the steering wheel rocking arm of transmission device drives connected tail to loose core axle, make tail loose core axle do in the axle center of tail transverse axis left and right back and forth movement, and then make tail pushing seat promote tail-rotor folder push-pull arm, and then realize tail-rotor folder variable pitch contro l.Because this structure belongs to Linear transmission, thus improve displacement efficiency, the controlling in agricultural depopulated helicopter course and manoevreability are significantly improved.In addition, do not have excessive interference in displacement process, whole displacement process linearly distributes, and enhances controlling and the manoevreability in helicopter course.Meanwhile, the utility model structure is simple, is easy to realize, will has good practicality.
Accompanying drawing explanation
Fig. 1 is the block diagram of the tail-rotor hub distance changing mechanism of prior art;
Fig. 2 is the block diagram of Drawing-Core tail-rotor hub distance changing mechanism of the present utility model;
Fig. 3 is the exploded drawings of Drawing-Core tail-rotor hub distance changing mechanism of the present utility model;
Fig. 4 is the exploded drawings (with installation boost line) of Drawing-Core tail-rotor hub distance changing mechanism of the present utility model.
Detailed description of the invention
Now with detailed description of the invention, the utility model is further illustrated by reference to the accompanying drawings.
As a concrete example, see Fig. 2, Fig. 3 and Fig. 4, the component names of each label representative in diagram is as follows: 601: coda wave casing, 602: tail transverse axis, 603: tail T head, 604: tail-rotor presss from both sides, 605: tail-rotor, 606: tail pushing seat, 607:M3 hexagon socket head cap screw, 608: tail is loosed core axle, 609: flange bearing, 610: permanent seat of loosing core, 611:M3 hexagon socket head cap screw, 612: turning joint permanent seat, 613: sliding active joint arm, 614: steering wheel rocking arm, 615: steering wheel permanent seat, 616: tail actuator body, 617: tail actuator over cap, 618: tail transverse axis fixed type bearing, 619: tail-rotor folder push-pull arm.
Concrete, Drawing-Core tail-rotor hub distance changing mechanism of the present utility model, comprises coda wave casing 601, steering wheel permanent seat 615, tail actuator body 617, steering wheel rocking arm 614, sliding active joint arm 613, turning joint permanent seat 612, permanent seat 610 of loosing core, flange bearing 609, tail looses core axle 608, tail transverse axis fixed type bearing 617, tail transverse axis 602, tail pushing seat 606, tail-rotor folder push-pull arm 618, tail-rotor folder 604, tail T 603.
Wherein, tail actuator body 617, steering wheel over cap 616 and steering wheel permanent seat 615 form tail actuator; tail actuator body 617 is located on steering wheel permanent seat 615; steering wheel permanent seat 615 is fixedly connected with coda wave casing 601 by screw, and the top that steering wheel over cap 616 is covered on tail actuator body 617 is with by airtight for this tail actuator body 617.Steering wheel rocking arm 614, sliding active joint arm 613, turning joint permanent seat 612, permanent seat 610 of loosing core, flange bearing 609, tail axle 608 of loosing core forms transmission device of the present utility model by screw.Tail transverse axis fixed type bearing 618, tail transverse axis 602, tail pushing seat 606, tail-rotor folder push-pull arm 619, tail-rotor folder 604, tail T 603 and tail-rotor 605 form tail-rotor structure.In the present embodiment, tail transverse axis 602 is heat treated stiffened hollow shaft.The structure of tail T 603 is join shape in cross.Flange bearing 609 is axle core permanent seat bearings.
During assembling, described tail actuator body 617 is installed on steering wheel permanent seat 615, and is fixed by screw and coda wave casing 601.Tail actuator body 617, steering wheel over cap 616 and steering wheel permanent seat 615 form tail actuator.Steering wheel rocking arm 614, sliding active joint arm 613, turning joint permanent seat 612, permanent seat 610 of loosing core, flange bearing 609, tail axle 608 of loosing core is connected by screw and is connected into driving joint group (transmission device).Tail transverse axis 602, tail pushing seat 606, tail-rotor folder push-pull arm 619, tail-rotor folder 604, tail T 603 are linked together by screw.Tail transverse axis 602 is installed on coda wave casing 601 through after tail transverse axis fixed type bearing 618.Tail axle 608 of loosing core is inserted in the axle center of tail transverse axis 602.The structure of Fig. 2 is formed through upper described assembling.
Operationally, to be loosed core axle 608 by steering wheel rocking arm 614 push-and-pull and sliding active joint arm 613, turning joint permanent seat 612, loose core permanent seat 610 and coupled tail, make tail loose core 608 do in tail transverse axis 602 axle center left and right back and forth movement, and then make tail pushing seat 606 promote tail-rotor folder push-pull arm 619, thus realize tail-rotor and press from both sides 604 variable pitch contro l.Because this structure belongs to Linear transmission, thus improve displacement efficiency, the controlling in depopulated helicopter course and manoevreability are significantly improved.
The Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter of the present utility model, adopt said structure, its tail center shaft realizes linear reciprocation and moves displacement, and displacement process is linear, without interfering retardance; Meanwhile, reduce actuator load and wearing and tearing, extend its service life.In addition, the utility model enormously simplify tail-rotor hub distance changing mechanism, reduces mechanical wear, increases flight reliability.
Although specifically show in conjunction with preferred embodiment and describe the utility model; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.

Claims (5)

1. a Drawing-Core tail-rotor hub distance changing mechanism for agricultural depopulated helicopter, comprises transmission device and is pressed from both sides by the tail-rotor of transmission mechanism control displacement, and tail-rotor folder is fixed with tail-rotor; It is characterized in that:
Described transmission device comprises steering wheel rocking arm, sliding active joint arm, turning joint permanent seat, permanent seat of loosing core, flange bearing and tail and to loose core axle, one end of steering wheel rocking arm is fixed on tail actuator, the other end of steering wheel rocking arm is provided with guide groove, one end of sliding active joint arm is fixed through this guide groove, the other end of sliding active joint arm is fixed on turning joint permanent seat, turning joint permanent seat with to loose core permanent seat pivot joint, tail axle of loosing core is arranged through the axle center of permanent seat of loosing core;
Steering wheel rocking arm, sliding active joint arm, turning joint permanent seat, permanent seat of loosing core, flange bearing and tail are loosed core and to be connected formation transmission device by screw, to be loosed core axle by the push-and-pull of steering wheel rocking arm and sliding active joint arm, turning joint permanent seat and the tail that is connected with permanent seat of loosing core, make tail loose core axle do in the axle center of tail transverse axis left and right back and forth movement, thus realize tail-rotor folder variable pitch contro l.
2. the Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter according to claim 1, it is characterized in that: this Drawing-Core tail-rotor hub distance changing mechanism also comprises coda wave casing, the side of coda wave casing arranges tail-rotor structure, the opposite side of coda wave casing connects tail actuator, and the tail of transmission device axle of loosing core is arranged through the axle center of coda wave casing and tail-rotor structure successively.
3. the Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter according to claim 2; it is characterized in that: described tail actuator comprises tail actuator body, steering wheel permanent seat and steering wheel over cap; one end of steering wheel rocking arm is rotatable is arranged at tail actuator body interior; tail actuator body is located on steering wheel permanent seat; steering wheel permanent seat is fixedly connected with coda wave casing by screw, and the top that steering wheel over cap is covered on tail actuator body is with by airtight for this tail actuator body.
4. the Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter according to claim 2, it is characterized in that: described tail-rotor structure comprises tail transverse axis fixed type bearing, tail transverse axis, tail pushing seat, tail-rotor folder push-pull arm, tail-rotor folder, tail T head and tail oar, one end of tail transverse axis is fixed on coda wave casing through after tail transverse axis fixed type bearing, the other end of tail transverse axis is fixedly connected with tail T head, tail T head is connected with tail pushing seat by tail-rotor folder push-pull arm, tail pushing seat presss from both sides with tail-rotor and is connected, tail-rotor folder fixed clamp tail-rotor.
5. the Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter according to claim 4, is characterized in that: described tail transverse axis is heat treated stiffened hollow shaft.
CN201420605077.7U 2014-10-20 2014-10-20 A kind of Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter Active CN204264453U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420605077.7U CN204264453U (en) 2014-10-20 2014-10-20 A kind of Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter

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Application Number Priority Date Filing Date Title
CN201420605077.7U CN204264453U (en) 2014-10-20 2014-10-20 A kind of Drawing-Core tail-rotor hub distance changing mechanism of agricultural depopulated helicopter

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105599898A (en) * 2016-02-26 2016-05-25 天峋创新(北京)科技有限公司 Three-rotor-wing tail rotor hub of unmanned helicopter
CN105836122A (en) * 2016-05-20 2016-08-10 辽宁辽飞航空科技有限公司 Multi-flight mode oil-driven variable-pitch multi-rotor aircraft
CN105857578A (en) * 2016-05-20 2016-08-17 辽宁辽飞航空科技有限公司 Pitch-variable system for oil-driven multi-rotor wing aircraft
CN106467165A (en) * 2015-08-19 2017-03-01 清远市清新区立丰航空植保科技有限公司 A kind of agricultural depopulated helicopter main rotor system device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106467165A (en) * 2015-08-19 2017-03-01 清远市清新区立丰航空植保科技有限公司 A kind of agricultural depopulated helicopter main rotor system device
CN106467165B (en) * 2015-08-19 2019-03-15 安徽天神农业航空科技有限公司 A kind of agricultural unmanned helicopter main rotor system device
CN105599898A (en) * 2016-02-26 2016-05-25 天峋创新(北京)科技有限公司 Three-rotor-wing tail rotor hub of unmanned helicopter
CN105836122A (en) * 2016-05-20 2016-08-10 辽宁辽飞航空科技有限公司 Multi-flight mode oil-driven variable-pitch multi-rotor aircraft
CN105857578A (en) * 2016-05-20 2016-08-17 辽宁辽飞航空科技有限公司 Pitch-variable system for oil-driven multi-rotor wing aircraft

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Effective date of registration: 20160219

Address after: 518000 Guangdong city of Shenzhen province Nanshan District Ke Feng Lu No. 2 idiopathic information building A building 801-805 unit on the North

Patentee after: SHENZHEN GKXN TECHNOLOGY CO., LTD.

Address before: 518000 Guangdong city of Shenzhen province Nanshan District Ke Feng Lu No. 2 idiopathic information building A building unit on the eighth floor of South 801-808

Patentee before: SHENZHEN WAYULINK TECHNOLOGY CO., LTD.