CN107878750B

CN107878750B - Unmanned aerial vehicle for spraying pesticide

Info

Publication number: CN107878750B
Application number: CN201711110569.3A
Authority: CN
Inventors: 刘博文; 刘福珍
Original assignee: Chongqing Dile Jinchi General Machinery Co ltd
Current assignee: CHONGQING DILE JINCHI GENERAL MACHINERY Co.,Ltd.
Priority date: 2017-11-12
Filing date: 2017-11-12
Publication date: 2020-12-22
Anticipated expiration: 2037-11-12
Also published as: CN107878750A

Abstract

The invention discloses an unmanned aerial vehicle for spraying pesticides, wherein a main engine cabin cover is buckled at an opening at the top of a main engine cabin, a lock is embedded in the center of the main engine cabin cover, and the outer end of a lock rod penetrates through a guide hole correspondingly formed in a guide block and can extend into an elastic lock clamp arranged on the inner wall of the top end of the main engine cabin; the inner space of the main cabin is divided into an upper part and a lower part which are mutually independent by a partition plate, the attitude instrument is positioned in the equipment room, a positioning plate at the bottom of the attitude instrument is supported on the partition plate by a shock absorber, the shock absorber comprises an upper guide cylinder, a lower guide cylinder and a spring, the top end of the upper guide cylinder is fixed with the positioning plate, the lower end of the upper guide cylinder is sleeved with the upper end of the lower guide cylinder, and the lower end of the lower guide cylinder is fixed with the partition plate. The locking mechanism has the advantages of reasonable design, simple structure, easy implementation and easy processing, manufacturing and assembly, can ensure the reliability of locking the host cabin cover on the host cabin, and can effectively reduce the influence of flight vibration on the attitude instrument, thereby ensuring the reliability and the service life of the attitude instrument.

Description

Unmanned aerial vehicle for spraying pesticide

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to an unmanned aerial vehicle for spraying pesticides.

Background

At present, unmanned aerial vehicles that automatically spray insecticide generally include host computer cabin, cantilever and power compartment, and the opening at host computer cabin top is sealed by the host computer cabin lid. The existing host cabin cover is usually connected with the host cabin in two ways, one is in a turnover locking type, and the other is in a buckling locking type. Because the reliability of the flip-lock type is poor, the snap-lock type main engine compartment cover is becoming mainstream.

The existing buckling locking type host cabin cover is generally locked by a mode of shifting a lock rod, and the lock rod is reset by the elasticity of a spring. Because the parts are small, the defects of difficult processing and manufacturing, difficult assembly, high production cost and the like exist. In addition, two-point or three-point locking is adopted, on one hand, a plurality of locking points can be operated simultaneously, and the difficulty of operation is increased; on the other hand, the reliability after locking is still insufficient, and the main engine cabin cover may be loosened or abnormal sound may be generated.

The attitude instrument is an important instrument on the pesticide unmanned spraying machine and displays the attitude of the pesticide unmanned spraying machine relative to the horizon. Through the attitude instrument, the ground operator can judge the attitude of the pesticide unmanned spraying machine to be left and right, up and down. The existing attitude instrument is usually installed in a main engine room through a separately manufactured bracket, and the installation mode of the attitude instrument is hard connection. Because unmanned spraying machine of pesticide can receive factors influences such as windage, air current at the in-process of flight, can avoid producing the vibration jolt, and this kind of vibration jolt directly transmits the attitude appearance for through the support, then influences the reliability of attitude appearance gently, makes the control personnel be difficult to accurately control, then can cause the attitude appearance to become flexible or damage seriously.

Disclosure of Invention

In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide an unmanned aerial vehicle for spraying pesticides.

The technical scheme of the invention is as follows: the utility model provides an unmanned aerial vehicle for spraying insecticide is equipped with the gesture appearance in the host computer cabin, and the opening part lock joint host computer hatch cover at host computer cabin top, this host computer hatch cover are the spherical surface structure that central high edge is low, and the shape size of host computer hatch cover suits its characterized in that with the opening at host computer cabin top: the outer edge of the host cabin cover is integrally formed with four flanges which are uniformly distributed according to the circumference, the flanges are arc-shaped, and two adjacent flanges are in smooth transition through depression; a lock is embedded in the center of the host cabin cover, a lock cylinder of the lock downwardly exceeds the bottom surface of the middle part of the host cabin cover, a follow-up block is fixed at the lower end of the lock cylinder, the follow-up block is in a cross shape, four hanging ends of the follow-up block respectively correspond to four guide blocks, the four guide blocks correspond to four depressions of the host cabin cover one by one, the guide blocks are fixed at the positions, close to the corresponding depressions, of the bottom surface of the host cabin cover, each guide block is provided with a lock rod, the inner end of each lock rod is movably connected with the hanging end of the follow-up block, and the outer end of each lock rod penetrates through a guide hole correspondingly formed in the guide block and can extend into an elastic lock clamp arranged on the inner wall of the top end of the host cabin;

the inner space of the host cabin is divided into an upper part and a lower part which are mutually independent by a partition board, the upper part is an equipment room, the lower part is a liquid medicine room, the attitude instrument is positioned in the equipment room, the bottom of the attitude instrument is provided with a positioning plate which is rectangular and parallel to the partition board, the bottom of the positioning plate is close to four corners and supported on the partition board by a shock absorber, the shock absorber comprises an upper guide cylinder, a lower guide cylinder and a spring, the top end of the upper guide cylinder is fixed with the positioning plate, the lower end of the upper guide cylinder sleeves the upper end of the lower guide cylinder, the upper guide cylinder and the lower guide cylinder are in sliding fit, the lower end of the lower guide cylinder is fixed with the partition board, the spring is arranged in a closed space formed by the upper guide cylinder and the lower guide cylinder in a surrounding mode, a gap is reserved between the inner side wall of the spring and the inner side wall.

By adopting the technical scheme, the main engine hatch cover is simple in shape, good in attractiveness and easy to process and manufacture. When the mainframe cabin cover is buckled at the opening at the top of the pesticide spraying machine mainframe cabin, the lock cylinder is rotated through the key, the lock cylinder drives the follow-up block to rotate by a certain angle together, when the follow-up block rotates, four lock rods are driven to simultaneously and outwards extend out under the guide of respective guide blocks, until the outer ends of the lock rods extend into the elastic lock clamp on the inner wall of the top end of the mainframe cabin, the key is extracted at the moment, because the four lock rods are all clamped tightly by the corresponding elastic lock clamps, the mainframe cabin cover can be tightly buckled at the top of the mainframe cabin, and loosening or falling cannot occur. The locking main engine cabin cover has few parts, is easy to assemble and has low production cost; on the other hand, four-point simultaneous locking is adopted and the locking is realized by screwing the key, so that the operation is simple and convenient, and the reliability after locking is good. The inside of the main engine room is divided into an upper equipment room and a lower liquid medicine room, so that liquid medicine is stored in the liquid medicine room of the main engine room, an independent medicine box does not need to be hung, the height and the size of the whole machine are greatly reduced, meanwhile, the liquid medicine is isolated from a battery, a controller and the like in the equipment room, and electrical elements in the equipment room cannot be influenced.

The four shock absorbers are used for supporting the attitude instrument so as to resist the vibration transmitted by the main cabin in the flying process. When the spraying machine vibrates and jolts, the main cabin transmits vibration to the attitude instrument, the upper guide cylinder and the lower guide cylinder slide relatively at the moment, the spring stretches and resets repeatedly to play a role in buffering and damping, so that the vibration transmitted to the attitude instrument through the shock absorber is small, and the reliability of the attitude instrument can be ensured. The shock absorber adopts the structure of the invention, has fewer parts, easy processing and manufacturing, convenient assembly and low production cost; the spring and the lower guide cylinder have small clearance, and the spring can be limited to generate deflection by combining sliding fit between the upper guide cylinder and the lower guide cylinder, so that the attitude instrument is effectively prevented from shaking.

In order to facilitate the installation of the follow-up block, the follow-up block is firmly installed, and the follow-up block is sleeved at the lower end of the lock cylinder and is locked by a nut.

In order to facilitate material selection and processing and ensure structural strength, the follow-up block is a stainless steel stamping piece.

The inner end of the lock rod is formed with a hook head through bending, the hook head is connected with the suspended end of the follow-up block in a hanging mode, and the outer end of the lock rod is coated with a layer of rubber. The structure is easy to connect the lock rod and the follow-up block, and the outer end of the lock rod is in contact with the elastic locking clamp by rubber, so that hard-to-hard abrasion can be effectively reduced.

The guide block is L-shaped, the transverse section of the guide block is fixedly attached to the bottom surface of the host cabin cover, and the longitudinal section of the guide block is provided with a guide hole. The guide block with the structure is simple in shape, easy to machine and manufacture, reliable in strength and free of deformation or damage.

In order to facilitate material selection, processing and assembly and ensure structural strength, the guide block is a stainless steel stamping part and is fixedly bonded with the bottom surface of the host cabin cover.

In order to ensure that the liquid medicine is uniform and avoid overlarge surging to influence the flight of the whole machine, the inside of the liquid medicine chamber is divided into four independent chambers by criss-cross wallboards, and two adjacent chambers are communicated through holes formed in the bottoms of the wallboards.

An upper guide post is arranged on the inner top wall of the upper guide barrel, the upper end of the spring is sleeved on the upper guide post, a lower guide post is arranged on the inner bottom wall of the lower guide barrel, and the lower end of the spring is sleeved on the lower guide post. The upper end and the lower end of the spring with the above structure are sleeved with the corresponding guide pillars, so that the spring can be further ensured to stretch in the up-down direction, and the damping effect is remarkable.

In order to facilitate the disassembly and the assembly, the upper guide cylinder is firmly installed, an upper annular boss is integrally formed on the periphery of the top end of the upper guide cylinder, and the upper annular boss is fixed with the positioning plate through a plurality of bolts uniformly distributed according to the circumference.

In order to facilitate the disassembly and assembly, the lower guide cylinder is firmly installed, a lower annular boss is integrally formed at the periphery of the bottom end of the lower guide cylinder, and the lower annular boss is fixed with the partition plate through a plurality of bolts uniformly distributed according to the circumference.

Has the advantages that: the locking device has the advantages of reasonable design, simple structure, easy implementation, easy processing, manufacture and assembly, capability of ensuring the locking reliability of the host cabin cover on the host cabin while effectively reducing the production cost, and convenient and labor-saving operation; the space for storing the liquid medicine can be reserved in the main engine room, so that the height and the size of the whole machine are greatly reduced; the attitude instrument is supported by the four shock absorbers distributed according to the rectangle, so that the installation firmness of the attitude instrument is ensured, the influence of flight vibration on the attitude instrument is effectively reduced, and the reliability and the service life of the attitude instrument are ensured.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a bottom view of the main engine compartment cover.

Fig. 3 is a schematic view of the installation of the attitude instrument.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in fig. 1 and 2, the main engine compartment cover 1 is a spherical structure with a high center and a low edge, four flanges 1a are integrally formed at the outer edge of the main engine compartment cover 1 and are uniformly distributed according to the circumference, the flanges 1a are arc-shaped, and two adjacent flanges 1a are smoothly transited through a recess 1 b. An opening is arranged at the top of the main engine room 6, the shape and the size of the opening are matched with those of the main engine room cover 1, and the main engine room cover 1 is buckled at the opening at the top of the main engine room 6 to seal the opening. The inner space of the main cabin 6 is divided into an upper part and a lower part which are mutually independent by a partition plate 10, wherein the upper part is an equipment chamber, and the lower part is a medicine liquid chamber. The inside of liquid medicine room is separated into four independent cavities by vertically and horizontally staggered's wallboard, and the through-hole intercommunication of seting up through the wallboard bottom between the two adjacent cavities.

As shown in fig. 1 and 2, a lock is embedded in the center of the main body hatch 1, and a lock cylinder 2 of the lock extends downward beyond the bottom surface of the middle of the main body hatch 1. The lower end of the lock core 2 is provided with a follow-up block 3, the follow-up block 3 is in a cross shape and is formed by punching stainless steel, and the follow-up block 3 is sleeved at the lower end of the lock core 2 and is locked by a nut.

As shown in fig. 1 and 2, four free ends of the follower block 3 correspond to four guide blocks 4, the four guide blocks 4 correspond to four recesses 1b of the main engine compartment cover 1 one by one, and the guide blocks 4 are disposed on the bottom surface of the main engine compartment cover 1 near the corresponding recesses 1 b. The guide block 4 is in an L shape, preferably a stainless steel stamping piece, the transverse section of the guide block 4 is attached to the bottom surface of the main engine hatch cover 1 and is fixed by bonding, and the longitudinal section of the guide block 4 is provided with a guide hole. Every guide block 4 all is equipped with a locking lever 5, and the inner of locking lever 5 is formed with the eave tile through buckling, and this eave tile articulates with the unsettled end of follow-up block 3 mutually, forms swing joint, and the guiding hole that corresponds to seting up on guide block 4 is passed to the outer end of locking lever 5 to can stretch into in the elasticity collet 7 that sets up on the inner wall of mainframe cabin 6 top. The number of the elastic locking clips 7 is four, the elastic locking clips are corresponding to the locking rods 5 one by one, and the elastic locking clips 7 are preferably fixed with the main cabin 6 through bonding. The outer end of the lock rod 5 is coated with a layer of rubber to play a role of protection.

As shown in fig. 1 and 3, a posture instrument 9 is arranged in the equipment room, the posture instrument 9 is positioned above a partition plate 10, a positioning plate 11 is arranged at the bottom of the posture instrument 9, the positioning plate 11 is fixedly connected with the posture instrument 9, and the positioning plate 11 is rectangular and parallel to the partition plate 10. Four shock absorbers 8 which are distributed in a rectangular shape are arranged between the positioning plate 11 and the partition plate 10, the four shock absorbers 8 correspond to four corners of the positioning plate 11, and the bottom of the positioning plate 11 is supported on the partition plate 10 by the shock absorbers 8 near the four corners.

As shown in fig. 3, the damper 8 includes an upper guide sleeve 8a, a lower guide sleeve 8b and a spring 8c, the upper guide sleeve 8a is a cylindrical structure with a closed upper end and an open lower end, an upper annular boss is integrally formed on the periphery of the top end of the upper guide sleeve 8a, and the upper annular boss is fixed to the positioning plate 11 by a plurality of bolts uniformly distributed according to the circumference. The lower guide cylinder 8b is a cylinder structure with an open upper end and a closed lower end, a lower annular boss is integrally formed at the periphery of the bottom end of the lower guide cylinder 8b, and the lower annular boss is fixed with the partition plate 10 through a plurality of bolts uniformly distributed according to the circumference. The lower end of the upper guide cylinder 8a sleeves the upper end of the lower guide cylinder 8b, and the two are in sliding fit.

As shown in fig. 3, a spring 8c is arranged in a closed space formed by the upper guide cylinder 8a and the lower guide cylinder 8b, the spring 8c is a compression spring, a gap is formed between the spring 8c and the inner side wall of the lower guide cylinder 8b, and the specific size of the gap is determined according to actual needs. The upper end of the spring 8c abuts against the inner top wall of the upper guide cylinder 8a, an upper guide post 12 is fixedly arranged on the inner top wall of the upper guide cylinder 8a, and the upper end of the spring 8c is sleeved on the upper guide post 12. The lower end of the spring 8c abuts against the inner bottom wall of the lower guide cylinder 8b, a lower guide post 13 is fixedly arranged on the inner bottom wall of the lower guide cylinder 8b, and the lower end of the spring 8c is sleeved on the lower guide post 13.

The structure not described in the present invention is the same as the prior art, and is not described herein.

The working principle of the locking of the host cabin cover is as follows:

when the host cabin cover 1 is buckled at an opening at the top of the host cabin 6, the lock cylinder 2 is rotated by a key, the lock cylinder 2 drives the follow-up block 3 to rotate together by a certain angle, the follow-up block 3 rotates and simultaneously drives the four lock rods 5 to simultaneously extend outwards under the guidance of the respective guide blocks 4 until the outer ends of the lock rods 5 extend into the elastic lock clamp 7 on the inner wall at the top end of the host cabin, the key is pulled out at the moment, and the host cabin cover 1 can be tightly buckled at the top of the host cabin 6 because the four lock rods 5 are all tightly bitten by the corresponding elastic lock clamps 7, so that looseness or falling cannot occur. When the lock needs to be unlocked, a key is inserted to reversely rotate the lock cylinder.

The damping working principle of the attitude instrument is as follows:

when the spraying machine vibrates and bumps, the main cabin 6 transmits vibration to the attitude instrument 9 through the partition plate 10, the upper guide cylinder and the lower guide cylinder slide relatively at the moment, the spring 8c repeatedly stretches and resets to play a role in buffering and damping, so that the vibration transmitted to the attitude instrument 9 through the shock absorber 8 is very small, and the reliability of the attitude instrument 9 can be ensured.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides an unmanned aerial vehicle for spraying insecticide is equipped with gesture appearance (9) in host computer cabin (6), and the opening part at host computer cabin (6) top is buckled and is adorned host computer cabin cover (1), and this host computer cabin cover (1) is the spherical surface structure that central high edge is low, and the shape size of host computer cabin cover (1) suits its characterized in that with the opening at host computer cabin (6) top: the outer edge of the host cabin cover (1) is integrally formed with four flanges (1a) which are uniformly distributed according to the circumference, the flanges (1a) are arc-shaped, and two adjacent flanges (1a) are smoothly transited through a recess (1 b); a lock is embedded in the center of the host cabin cover (1), a lock core (2) of the lock downwardly exceeds the bottom surface of the middle part of the host cabin cover (1), a follow-up block (3) is fixed at the lower end of the lock core (2), the follow-up block (3) is in a cross shape, the four suspension ends of the follow-up block (3) are respectively corresponding to four guide blocks (4), and the four guide blocks (4) are in one-to-one correspondence with four recesses (1b) of the hatch cover of the main engine, the guide blocks (4) are fixed on the bottom surface of the host cabin cover (1) close to the corresponding depressions (1b), each guide block (4) is provided with a lock rod (5), the inner end of the lock rod (5) is movably connected with the suspended end of the follow-up block (3), the outer end of the lock rod (5) passes through a guide hole correspondingly formed on the guide block (4), and can extend into an elastic locking clip (7) arranged on the inner wall of the top end of the main engine room (6);

the inner space of the host cabin (6) is divided into an upper part and a lower part which are mutually independent by a partition plate (10), the upper part is an equipment room, the lower part is a liquid medicine room, the attitude instrument (9) is positioned in the equipment room, a positioning plate (11) is arranged at the bottom of the attitude instrument (9), the positioning plate (11) is rectangular and is parallel to the partition plate (10), the bottom of the positioning plate (11) is supported on the partition plate (10) by a shock absorber (8) close to four corners, the shock absorber (8) comprises an upper guide cylinder (8a), a lower guide cylinder (8b) and a spring (8c), the top end of the upper guide cylinder (8a) is fixed with the positioning plate (11), the lower end of the upper guide cylinder (8a) sleeves the upper end of the lower guide cylinder (8b) and is in sliding fit with the upper guide cylinder and the lower guide cylinder, the lower end of the lower guide cylinder (8b) is fixed with the partition plate (10), the spring (8c) is arranged in a closed space formed by, a gap is formed between the spring (8c) and the inner side wall of the lower guide cylinder (8b), the upper end of the spring (8c) is abutted against the inner top wall of the upper guide cylinder (8a), and the lower end of the spring (8c) is abutted against the inner bottom wall of the lower guide cylinder (8 b); the follow-up block (3) is sleeved at the lower end of the lock cylinder (2) and is locked by a nut; the follow-up block (3) is a stainless steel stamping piece; the inner end of the lock rod (5) is bent to form a hook head, the hook head is connected with the suspended end of the follow-up block (3) in a hanging mode, and the outer end of the lock rod (5) is coated with a layer of rubber; the guide block (4) is L-shaped, the transverse section of the guide block (4) is fixedly attached to the bottom surface of the host cabin cover (1), and the longitudinal section of the guide block (4) is provided with a guide hole; the guide block (4) is a stainless steel stamping part, and the guide block (4) is fixedly bonded with the bottom surface of the main engine hatch cover (1); the interior of the liquid medicine chamber is divided into four independent chambers by criss-cross wall plates, and two adjacent chambers are communicated through holes formed in the bottoms of the wall plates; an upper guide post (12) is arranged on the inner top wall of the upper guide barrel (8a), the upper end of a spring (8c) is sleeved on the upper guide post (12), a lower guide post (13) is arranged on the inner bottom wall of the lower guide barrel (8b), and the lower end of the spring (8c) is sleeved on the lower guide post (13).

2. A drone for spraying pesticides, according to claim 1, characterised in that: an upper annular boss is integrally formed on the periphery of the top end of the upper guide cylinder (8a), and the upper annular boss is fixed with the positioning plate (11) through a plurality of bolts uniformly distributed according to the circumference.

3. A drone for spraying pesticides according to claim 1 or 2, characterised in that: a lower annular boss is integrally formed at the periphery of the bottom end of the lower guide cylinder (8b), and the lower annular boss is fixed with the partition plate (10) through a plurality of bolts uniformly distributed according to the circumference.