CN111792023B

CN111792023B - Fixed wing unmanned aerial vehicle for farming

Info

Publication number: CN111792023B
Application number: CN202010694858.8A
Authority: CN
Inventors: 王利香; 王东明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-18
Filing date: 2020-07-18
Publication date: 2021-04-13
Anticipated expiration: 2040-07-18
Also published as: CN111792023A

Abstract

The invention relates to the technical field of plant protection unmanned aerial vehicles, and discloses a fixed wing unmanned aerial vehicle for agricultural planting, which comprises a fixed support column, wherein mounting supports are fixedly connected to two sides of the fixed support column, a steering shaft is movably sleeved at the bottom of the fixed support column, a fixer is movably sleeved on the fixed support column, and an upper connecting piece is movably sleeved at the other end of the fixer. Through the arrangement of the limiting block and the deviation correcting device, when the unmanned aerial vehicle normally turns, the clamping block is far away from the limiting block under the action of the elastic piece, and the normal turning of the unmanned aerial vehicle cannot be influenced at the moment; when unmanned aerial vehicle receives external factors influence such as striking and tire off tracking appearing sliding along the runway, can drive wheel fork, steering spindle and jackshaft rotatory, when the jackshaft is rotatory, can drive the stopper and rise or descend for wedge and clutch blocks contact and extrusion, the tire deflection is big more, and the resistance is big more, can restrain the emergence of deflecting, and reduce the deflection of tire, prevent the skew slide of unmanned aerial vehicle.

Description

Fixed wing unmanned aerial vehicle for farming

Technical Field

The invention relates to the technical field of plant protection unmanned aerial vehicles, in particular to a fixed wing unmanned aerial vehicle for agricultural planting.

Background

Plant protection unmanned aerial vehicle, also called unmanned vehicles, the light aircraft of unmanned driving who is used for agriculture and forestry plant protection operation is looked after as the name, in the agricultural production process of modernization, people generally adopt many rotor unmanned aerial vehicle and fixed wing unmanned aerial vehicle to carry out agricultural production, fly through ground remote control or navigation, realize spraying the operation, can spray the medicament, the seed, powder etc., wherein fixed wing unmanned aerial vehicle is because its duration is long again, the advantage that the bearing capacity is strong is by wide application, and the undercarriage is that fixed wing aircraft lower part is used for taking off to descend or supports the aircraft and be used for the ground accessory device that removes when the ground slided, the undercarriage is the only part that supports whole aircraft, therefore it is the aircraft not part that can divide.

But there often still have some problems in the actual use of current fixed wing unmanned aerial vehicle undercarriage: firstly, the front landing gear of the traditional fixed wing aircraft mostly adopts the integrated layout of a buffer and a fixed strut, when the fixed wing unmanned aerial vehicle lands, the fixed wing unmanned aerial vehicle not only needs a larger buffer stroke to cause serious jolting of the unmanned aerial vehicle, but also needs to bear larger impact load and lateral load, the bending moment of the fixed strut is increased, and the fixed strut and a wheel fork are extremely easy to damage; secondly, because the fixed wing unmanned aerial vehicle for plant protection receives the restriction of the environment and the condition in place, when the fixed wing aircraft lands or runs, the tire of its undercarriage bottom receives the striking of ground and easily takes place the condition of lopsidedness, leads to unmanned aerial vehicle can not aim at the runway when the speed reduction is run in, and the aircraft slides out the track easily, and the light person damages unmanned aerial vehicle undercarriage structural component, and the heavy time causes the aircraft to turn on one's side or damage.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the fixed wing unmanned aerial vehicle for agricultural planting, which has the advantages of reducing the buffer stroke of the undercarriage, having good compression resistance and bending resistance, preventing the unmanned aerial vehicle from sideslipping, and solving the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a fixed wing unmanned aerial vehicle for farming, includes the fixed stay, the both sides fixedly connected with installing support of fixed stay, the steering spindle has been cup jointed in the bottom activity of fixed stay, the fixer has been cup jointed in the fixed stay activity, the connecting piece has been cup jointed in the other end activity of fixer, the attenuator has been cup jointed in the middle part activity of going up the connecting piece, the equal fixedly connected with damping spring in both sides of going up the connecting piece, the bottom of attenuator and the middle part fixed connection of connecting piece down, two damping spring's bottom respectively with connecting piece both ends fixed connection down, the wheel fork has been cup jointed in the both sides activity at connecting piece middle part down, the middle part and the steering spindle bottom fixed connection of wheel fork, the bottom fixedly connected with tire of wheel fork.

Preferably, the inside of the fixed support is provided with a controller, the bottom of the controller is fixedly connected with a motor, an output shaft end of the motor is fixedly connected with an intermediate shaft, the middle part of the intermediate shaft is provided with threads, the middle part of the intermediate shaft is in threaded connection with a limiting block, and the two sides of the limiting block are provided with deviation rectifying devices fixedly connected with the fixed support.

Preferably, the stopper includes the stopper main part, the threaded through-hole has been seted up at the middle part of stopper main part, the left and right sides fixedly connected with wedge of stopper main part, the equal fixedly connected with slide bar in middle part of both sides around the stopper main part.

Preferably, the deviation correcting device comprises a slide rail, a slide groove is formed in the middle of the slide rail, two sets of T-shaped slide blocks which are symmetrically mounted up and down are movably sleeved inside the slide groove, one side of each of the two sets of T-shaped slide blocks is fixedly connected with a clamping block, and the middle of the outer side of each of the two sets of clamping blocks is fixedly connected with an elastic part fixedly connected with the slide rail.

Preferably, an electromagnet is arranged inside the fixture block, and a friction block is fixedly mounted on the wedge-shaped surface of the fixture block.

Preferably, the middle part of the wheel fork is movably sleeved with a cross rod, and the middle part of the wheel fork is fixedly connected with the bottom end of the steering shaft through the cross rod.

Preferably, the slide bar is a vertical slide bar with a rectangular cross section, and a vertical rectangular slide way matched with the slide bar is arranged in the fixed strut.

The invention has the following beneficial effects:

1. separately set up through fork and fixed bolster for the fork passes through the steering spindle and forms the rocking arm, and not only effectual reduction the buffer stroke, reduced unmanned aerial vehicle jolts from top to bottom, when unmanned aerial vehicle fell to the ground and need bear great vertical load and horizontal load in addition, the homoenergetic is stretched through damping spring, attenuator, and the absorbed energy has reduced the moment of flexure and the load of fixed bolster and fork, has good bending resistance, compressive capacity.

2. Through the arrangement of the limiting block and the deviation correcting device, when the unmanned aerial vehicle normally turns, the clamping block is far away from the limiting block under the action of the elastic piece, and the normal turning of the unmanned aerial vehicle cannot be influenced at the moment; when unmanned aerial vehicle receives external factors influence such as striking and tire off tracking appearing sliding along the runway, can drive wheel fork, steering spindle and jackshaft rotatory, when the jackshaft is rotatory, can drive the stopper and rise or descend for wedge and clutch blocks contact and extrusion, the tire deflection is big more, and the resistance is big more, can restrain the emergence of deflecting, and reduce the deflection of tire, prevent the skew slide of unmanned aerial vehicle.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a rear view of the structure of the present invention;

FIG. 4 is a schematic view of the internal structure of the fixing support according to the present invention;

FIG. 5 is an enlarged view of the structure A of the present invention;

FIG. 6 is a schematic view of a structural stop of the present invention;

fig. 7 is a schematic diagram of a structural fixture block of the present invention.

In the figure: 1. fixing a strut; 2. mounting a bracket; 3. a holder; 4. an upper connecting piece; 5. a damper; 6. a damping spring; 7. a lower connecting piece; 8. a steering shaft; 9. a wheel fork; 10. a tire; 11. a controller; 12. a motor; 13. an intermediate shaft; 14. a thread; 15. a limiting block; 1501. a stopper body; 1502. a threaded through hole; 1503. a wedge block; 1504. a slide bar; 16. a deviation correcting device; 1601. a slide rail; 1602. a chute; 1603. a T-shaped slider; 1604. a clamping block; 1605. an elastic member; 17. an electromagnet; 18. a friction block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1-7, a fixed wing unmanned aerial vehicle for agricultural planting, comprising a fixed strut 1, two sides of the fixed strut 1 are fixedly connected with a mounting bracket 2, a steering shaft 8 is movably sleeved at the bottom of the fixed strut 1, a fixer 3 is movably sleeved at the fixed strut 1, an upper connecting piece 4 is movably sleeved at the other end of the fixer 3, a damper 5 is movably sleeved at the middle of the upper connecting piece 4, damping springs 6 are fixedly connected at two sides of the upper connecting piece 4, the bottom end of the damper 5 is fixedly connected with the middle of a lower connecting piece 7, the bottom ends of the two damping springs 6 are respectively fixedly connected with two ends of the lower connecting piece 7, wheel forks 9 are movably sleeved at two sides of the middle of the lower connecting piece 7, the middle of the wheel forks 9 is fixedly connected with the bottom end of the steering shaft 8, and tires 10 are fixedly connected with.

Wherein, the inside of fixed stay 1 is equipped with controller 11, the bottom fixedly connected with motor 12 of controller 11, the output shaft end fixedly connected with jackshaft 13 of motor 12, the middle part of jackshaft 13 is provided with screw thread 14, the middle part threaded connection of jackshaft 13 has stopper 15, the both sides of stopper 15 be equipped with in fixed stay 1 fixed connection's deviation correcting device 16, when unmanned aerial vehicle need turn to, turn to through controller 11 control motor 12 rotation, 16 pause work of deviation correcting device of simultaneous control.

Wherein, stopper 15 includes stopper main part 1501, screw through-hole 1502 has been seted up at the middle part of stopper main part 1501, the left and right sides fixedly connected with wedge 1503 of stopper main part 1501, the equal fixedly connected with slide bar 1504 in middle part of stopper main part 1501 front and back both sides, when tire 10 slides along the runway and receives external factors influence such as striking and the tire 10 off tracking appears, can drive wheel fork 9, steering spindle 8, and jackshaft 13 is rotatory, when jackshaft 13 is rotatory, can drive stopper 15 and rise or descend, make wedge 1503 and the contact of clutch blocks 18 and extrude, tire 10 deflects big more, the resistance is big more, can restrain the emergence of deflecting, and reduce the deflection of tire 10.

Wherein, deviation correcting device 16 includes slide rail 1601, and spout 1602 has been seted up at the middle part of slide rail 1601, and the inside activity of spout 1602 has cup jointed the T shape slider 1603 of two sets of longitudinal symmetry installation, the equal fixedly connected with fixture block 1604 in one side of two sets of T shape sliders 1603, the equal fixedly connected with in middle part in the two sets of fixture blocks 1604 outsides and slide rail 1601 fixed connection's elastic component 1605, when unmanned aerial vehicle normally turns to, stopper 15 is kept away from under the effect of elastic component 1605 to fixture block 1604, can not influence unmanned aerial vehicle's normal steering.

Wherein, the inside of fixture block 1604 is provided with electro-magnet 17, and fixture block 1604's wedge face department fixed mounting has a clutch blocks 18, and when unmanned aerial vehicle orientation and the direction of falling to the ground is normal, controller 11 control electro-magnet 17 circular telegram for upper and lower fixture block 1604 is close to each other and presss from both sides tight wedge 1503, prevents that unmanned aerial vehicle from taking place the condition emergence of tire 10 deflection because tire 10 and ground striking or receive the slide influence when falling to the ground.

Wherein, the horizontal pole has been cup jointed in the middle part activity of wheel fork 9, the middle part of wheel fork 9 is passed through horizontal pole and 8 bottom fixed connections of steering spindle, separately set up through wheel fork 9 and fixed prop 1, make wheel fork 9 pass through steering spindle 8 and form the rocking arm, not only effectual reduction buffer stroke, unmanned aerial vehicle's jolting from top to bottom has been reduced, and when unmanned aerial vehicle fell to the ground and need bear great vertical load and horizontal load, the homoenergetic is through damping spring 6, attenuator 5 is tensile, the energy absorption, good bending resistance has, the compressive capacity.

The sliding rod 1504 is a vertical sliding rod with a rectangular cross section, a vertical rectangular slide matched with the sliding rod 1504 is arranged inside the fixed support 1, and the sliding rod 1504 is matched with the slide, so that the intermediate shaft 13 can drive the limiting block 15 to ascend or descend to extrude the friction block 18.

According to the working principle, when the unmanned aerial vehicle normally turns, the clamping block 1604 is far away from the limiting block 15 under the action of the elastic piece 1605, and the normal turning of the unmanned aerial vehicle cannot be influenced at the moment; when unmanned aerial vehicle received external factors influence such as striking and tire 10 off tracking along the runway slip, can drive fork 9, steering spindle 8 and jackshaft 13 rotatory, when jackshaft 13 is rotatory, can drive stopper 15 and rise or descend for

wedge

1503 and 18 contacts of clutch blocks and extrudees, tire 10 deflects big more, and the resistance is big more, can restrain the emergence of deflecting, and reduce the deflection of tire 10, prevent the skew slide of unmanned aerial vehicle.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fixed wing unmanned aerial vehicle for farming, includes fixed stay (1), the both sides fixedly connected with installing support (2) of fixed stay (1), steering spindle (8), its characterized in that have been cup jointed in the bottom activity of fixed stay (1): the fixing strut (1) is movably sleeved with a fixer (3), the other end of the fixer (3) is movably sleeved with an upper connecting piece (4), the middle part of the upper connecting piece (4) is movably sleeved with a damper (5), two sides of the upper connecting piece (4) are fixedly connected with damping springs (6), the bottom end of the damper (5) is fixedly connected with the middle part of a lower connecting piece (7), the bottom ends of the two damping springs (6) are respectively fixedly connected with two ends of the lower connecting piece (7), two sides of the middle part of the lower connecting piece (7) are movably sleeved with a wheel fork (9), the middle part of the wheel fork (9) is fixedly connected with the bottom end of a steering shaft (8), the bottom of the wheel fork (9) is fixedly connected with a tire (10), a controller (11) is arranged in the fixing strut (1), and a motor (12) is fixedly connected with the bottom of the controller (11), an intermediate shaft (13) is fixedly connected with an output shaft end of the motor (12), threads (14) are arranged in the middle of the intermediate shaft (13), a limiting block (15) is connected with the threads in the middle of the intermediate shaft (13), and deviation rectifying devices (16) fixedly connected with the fixed supporting columns (1) are arranged on two sides of the limiting block (15).

2. The fixed-wing drone for agricultural planting according to claim 1, characterized in that: the limiting block (15) comprises a limiting block main body (1501), a threaded through hole (1502) is formed in the middle of the limiting block main body (1501), wedge blocks (1503) are fixedly connected to the left side and the right side of the limiting block main body (1501), and sliding rods (1504) are fixedly connected to the middle of the front side and the middle of the rear side of the limiting block main body (1501).

3. The fixed-wing drone for agricultural planting according to claim 1, characterized in that: deviation correcting device (16) includes slide rail (1601), spout (1602) have been seted up at the middle part of slide rail (1601), the inside activity of spout (1602) has cup jointed two sets of T shape slider (1603) of symmetry installation from top to bottom, and is two sets of equal fixedly connected with fixture block (1604) in one side of T shape slider (1603), two sets of equal fixedly connected with in the middle part in fixture block (1604) outside and slide rail (1601) fixed connection's elastic component (1605).

4. The fixed-wing drone for agricultural planting according to claim 3, characterized in that: an electromagnet (17) is arranged inside the clamping block (1604), and a friction block (18) is fixedly mounted on the wedge-shaped surface of the clamping block (1604).

5. The fixed-wing drone for agricultural planting according to claim 1, characterized in that: the middle part of the wheel fork (9) is movably sleeved with a cross rod, and the middle part of the wheel fork (9) is fixedly connected with the bottom end of the steering shaft (8) through the cross rod.

6. The fixed-wing drone for agricultural planting according to claim 2, characterized in that: the sliding rod (1504) is a vertical sliding rod with a rectangular cross section, and a vertical rectangular slide way matched with the sliding rod (1504) is arranged in the fixed strut (1).