CN214155405U

CN214155405U - Mowing device and unmanned equipment

Info

Publication number: CN214155405U
Application number: CN202022770280.8U
Authority: CN
Inventors: 方楚雄; 陈星�; 翟翔可; 苏吉贤
Original assignee: Guangzhou Xaircraft Technology Co Ltd
Current assignee: Guangzhou Xaircraft Technology Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-09-10
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a grass cutting device and unmanned aerial vehicle relates to the technical field of mowing. The mowing device comprises a mounting seat, a driving mechanism, a tensioning mechanism and a mowing mechanism; the driving mechanism comprises a driving wheel, a driving piece and a transmission assembly; the driving wheel is arranged on the mounting seat, and the driving piece is in transmission connection with the driving wheel; the transmission assembly comprises a transmission part and a plurality of transmission wheels arranged on the mounting seat; the transmission part is sleeved on the driving wheel and the plurality of transmission wheels simultaneously; the mowing mechanism comprises a plurality of mowing assemblies in one-to-one transmission connection with a plurality of transmission wheels, and mowing areas formed when any two adjacent mowing assemblies rotate are partially overlapped; the tensioning mechanism is arranged on the mounting seat and used for tensioning the transmission piece. The mowing device can meet the operation requirements of different operation scenes, can reduce the occurrence of missed cutting, and can also ensure the operation efficiency and quality.

Description

Mowing device and unmanned equipment

Technical Field

The utility model relates to a weeding technical field particularly, relates to a grass cutting device and unmanned aerial vehicle.

Background

Mowers are also known as weed trimmers, lawnmowers, lawn trimmers, and the like. The mower is a mechanical tool for trimming lawns, vegetation and the like, and can effectively liberate hands and improve mowing efficiency. In the prior art, there are generally single-reel mowers, double-reel mowers and multi-reel mowers, and the single-reel mowers have a problem of large occupied space, so that the double-reel or multi-reel mowers are used more frequently to reduce the occupied space and effectively ensure the mowing efficiency.

However, in the prior art, the double-cutter-disc type mower and the multi-cutter-disc type mower have the problems that the operation requirements of different scenes cannot be met, and meanwhile, the phenomenon of cutting missing also exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a grass cutting device, there is the coincidence in its adjacent subassembly of mowing area, can reduce the condition appearance of leaking cutting, and straining device can tension the driving medium effectively simultaneously for the driving medium that is in under various operation scenes remains the tensioning state throughout, thereby when adapting to different operation environment, can also guarantee that the driving medium can stably drive the subassembly of mowing and mow the operation, improves operating efficiency and quality.

Another object of the present invention is to provide an unmanned aerial vehicle, which includes the above mowing device. Therefore, the cutting device can meet the operation requirements of different operation scenes, can reduce the occurrence of the cutting missing situation, and can also ensure the operation efficiency and quality.

The embodiment of the utility model is realized like this:

in a first aspect, the present invention provides a mowing device, comprising:

a mounting seat;

the driving mechanism comprises a driving wheel, a driving piece and a transmission assembly; the driving wheel is arranged on the mounting seat, and the driving piece is in transmission connection with the driving wheel and is used for driving the driving wheel to rotate; the transmission assembly comprises a transmission part and a plurality of transmission wheels arranged on the mounting seat; the transmission part is sleeved on the driving wheel and the plurality of transmission wheels and is used for driving the plurality of transmission wheels to rotate simultaneously;

the mowing mechanism comprises a plurality of mowing assemblies in one-to-one transmission connection with a plurality of transmission wheels, and each mowing assembly is driven by the transmission wheel at the corresponding position to rotate so as to perform mowing operation; the mowing areas formed by any two adjacent mowing assemblies when rotating are partially overlapped;

and the tensioning mechanism is arranged on the mounting seat and is used for tensioning the transmission part.

In an alternative embodiment, the driving wheel is rotatably mounted to the mounting base via a driving shaft, and each of the driving wheels is rotatably mounted to the mounting base via a driving shaft;

every subassembly of mowing all includes installing support and blade, and the transmission shaft that corresponds the position is located to the installing support cover of installing support, and the blade sets up in the installing support, and a plurality of blades are located same mounting height, and the distance between two arbitrary adjacent transmission shafts is less than the tip of two blades of corresponding position and respectively apart from the distance sum of the transmission shaft of corresponding position.

In an alternative embodiment, each mowing assembly comprises two blades, the two blades are respectively arranged at two ends of the mounting bracket at the corresponding position, and the distance between any two adjacent transmission shafts is smaller than the sum of the distances from the end part of any blade of each mowing assembly at the corresponding position to the transmission shaft at the corresponding position.

In an alternative embodiment, the tensioning mechanism includes a base and a tensioning wheel, the base is fixedly connected with the mounting base, and the tensioning wheel is movably disposed on the base along a direction close to or far from the transmission member and is used for cooperating with the transmission member to tension the transmission member.

In an optional embodiment, the base is provided with an installation groove extending towards the transmission member, the tensioning mechanism further comprises a screw rod, the screw rod is accommodated in the installation groove and is in threaded connection with the base, and the tensioning wheel is fixedly connected with the screw rod and used for approaching to or keeping away from the transmission member in the rotation process of the screw rod relative to the base.

In an alternative embodiment, the mowing device further comprises at least one guide wheel, and the guide wheel is rotatably arranged on the mounting seat through a guide wheel shaft; the inner side edge of the transmission piece is matched with the driving wheel and the plurality of driving wheels, and the guide wheel is matched with the outer side edge of the transmission piece.

In an alternative embodiment, the drive wheel and at least one of the plurality of drive wheels are adjustably mounted to the mounting.

In an alternative embodiment, at least two of the plurality of driving wheels are adjustably mounted to the mounting base to adjust the distance between two adjacent driving wheels; the mounting seat is provided with a sliding groove which is arranged corresponding to the driving wheel with adjustable position, and a transmission shaft of the driving wheel is in inserting fit with the sliding groove with the corresponding position and can move along the extending direction of the sliding groove so as to be in inserting fit with any position of the sliding groove with adjustable position.

In an optional embodiment, the driving wheel and the driving wheel are belt wheels, and the transmission part is a transmission belt which is sleeved on the driving wheel and the outer sides of the plurality of driving wheels;

alternatively, the first and second electrodes may be,

the driving wheel and the driving wheel are chain wheels, and the driving part is a chain which is sleeved on the outer sides of the driving wheel and the plurality of driving wheels simultaneously.

In a second aspect, the present invention provides an unmanned aerial vehicle, including:

the mowing device comprises a frame body and the mowing device in any one of the previous embodiments, wherein the mowing device is arranged on the frame body and is used for mowing.

The embodiment of the utility model provides an at least possess following advantage or beneficial effect:

the embodiment of the utility model provides a mowing device, which comprises a mounting seat, a driving mechanism, a tensioning mechanism and a mowing mechanism; the driving mechanism comprises a driving wheel, a driving piece and a transmission assembly; the driving wheel is arranged on the mounting seat, and the driving piece is in transmission connection with the driving wheel and is used for driving the driving wheel to rotate; the transmission assembly comprises a transmission part and a plurality of transmission wheels arranged on the mounting seat; the transmission part is sleeved on the driving wheel and the plurality of transmission wheels and is used for driving the plurality of transmission wheels to rotate simultaneously; the mowing mechanism comprises a plurality of mowing assemblies in one-to-one transmission connection with a plurality of transmission wheels, and each mowing assembly is driven by the transmission wheel at the corresponding position to rotate so as to perform mowing operation; the mowing areas formed by any two adjacent mowing assemblies when rotating are partially overlapped; the tensioning mechanism is arranged on the mounting seat and is used for tensioning the transmission part. The mowing area of any adjacent mowing assembly of the mowing device is overlapped, the condition of missed mowing can be reduced, meanwhile, the tensioning mechanism can effectively tension the transmission piece, the transmission piece under various operation scenes is always kept in a tensioning state, the transmission piece can be guaranteed to stably drive the mowing assembly to mow when the mowing device adapts to different operation environments, and operation efficiency and quality are improved.

The embodiment of the utility model also provides an unmanned aerial vehicle, it includes foretell grass cutting device. Therefore, the method can adapt to the operation requirements of different operation scenes so as to reduce the occurrence of the cutting missing situation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present invention at a first viewing angle;

fig. 2 is a schematic structural diagram of an unmanned aerial vehicle at a second viewing angle according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an unmanned aerial vehicle at a third viewing angle according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an unmanned aerial vehicle at a fourth viewing angle according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a mowing device according to an embodiment of the present invention;

fig. 6 is a schematic partial structural view of a mowing device according to an embodiment of the present invention;

fig. 7 is a schematic partial structural view of a mowing device according to an embodiment of the present invention;

fig. 8 is a schematic view of a partial structure of a mowing device according to an embodiment of the present invention;

fig. 9 is a schematic partial structural view of a mowing device according to an embodiment of the present invention;

fig. 10 is a partially exploded view illustrating a mowing assembly of the mowing device according to the embodiment of the present invention;

fig. 11 is a partially exploded view schematically illustrating a mowing assembly of the mowing device according to an embodiment of the present invention;

fig. 12 is a schematic structural view of a tensioning mechanism of a mowing device according to an embodiment of the present invention.

100-unmanned equipment; 101-a frame body; 103-a wheel; 105-an installation space; 107-main beam; 109-secondary beam; 200-a mowing device; 201-a mounting seat; 203-a height adjustment mechanism; 205-a drive mechanism; 207-driving wheel; 209-a drive member; 211-a transmission assembly; 213-a transmission wheel; 215-a transmission member; 217-mowing mechanism; 219-a mowing assembly; 221-a transmission shaft; 227-mounting a bracket; 229-a blade; 231-a tensioning mechanism; 233-base; 234-a fixed seat; 235-a tension wheel; 237-screw; 239-a guide wheel; 241-double nuts; 242-screws; 243-limit sleeve; 247-bearing seats; 249-a receiving cavity; 251-an oil seal seat; 255-a bearing; 259-axle seat boss; 261-protective shell; 262-an installation groove; 263-mating groove; 265-a first mounting plate; 267-a second mounting plate; 269-third mounting plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the related art, a lawn mower can be mounted on an unmanned device for use to automatically perform a mowing operation under a remote control condition, thereby improving mowing efficiency. Lawn mowers typically include, among other things, a mount, a drive mechanism, and a mowing mechanism. The mounting seat is fixedly connected with the unmanned equipment, the driving mechanism and the mowing mechanism are arranged on the mounting seat, the mowing mechanism comprises a plurality of mowing blades, and the mowing blades are in transmission connection with the driving mechanism and used for rotating under the driving action of the driving mechanism so as to perform mowing operation. However, in the related art, the missed cutting phenomenon is likely to occur due to gaps existing in the mowing areas of the plurality of mowing blades; meanwhile, under the severe condition of the operation environment, the stability and the reliability of the mowing blade are poor, and the mowing efficiency and the mowing quality are seriously influenced.

In view of this, the present embodiment provides an unmanned aerial vehicle, wherein a frame body of the unmanned aerial vehicle is provided with a mowing device for mowing, mowing areas of mowing assemblies of the mowing device overlap, so that missed mowing can be reduced, and meanwhile, a transmission member for driving the mowing assembly to move is always in a tensioned state no matter what kind of operating environment is in, so that the mowing assembly can stably and reliably perform mowing operation, and thus, the operating efficiency and quality can be effectively improved. The structure of the unmanned aerial vehicle and the mowing device will be described in detail below.

Fig. 1 is a schematic structural diagram of an unmanned aerial vehicle 100 provided in this embodiment at a first viewing angle; fig. 2 is a schematic structural diagram of the unmanned aerial vehicle 100 provided in this embodiment at a second viewing angle; fig. 3 is a schematic structural diagram of the unmanned aerial vehicle 100 provided in this embodiment at a third viewing angle; fig. 4 is a schematic structural diagram of the unmanned device 100 according to the present embodiment at a fourth viewing angle. Referring to fig. 1 to 4, in the present embodiment, the unmanned aerial vehicle 100 is provided for carrying a mowing device 200 to perform mowing operation under a remote control condition, so as to improve mowing efficiency and save labor cost. Of course, in other embodiments, the mowing device 200 may be used alone or mounted on a structure such as an automobile, a cart, or an unmanned aerial vehicle; meanwhile, the unmanned aerial vehicle 100 may be equipped with other working devices, for example, a spraying device for agricultural spraying work, and the like, which is not limited in the present embodiment.

In detail, referring to fig. 1 to 4 again, in the present embodiment, the unmanned aerial vehicle 100 is an unmanned vehicle, and the unmanned aerial vehicle 100 specifically includes a frame 101, four wheels 103 disposed on two sides of the frame 101, and a mowing device 200. The frame body 101 includes two main beams 107 disposed oppositely and at an interval, and a plurality of sub-beams 109 disposed between the two main beams 107. The four wheels 103 are oppositely arranged on one side of the two main beams 107 away from each other in pairs, and the four wheels 103 form an installation space 105 below the frame body 101. The mowing device 200 is fixedly connected to the main beam 107, and is specifically disposed in the installation space 105, so that mowing operation can be performed during movement of the unmanned aerial vehicle 100.

Fig. 5 is a schematic structural diagram of the grass cutting device 200 according to the present embodiment; fig. 6 is a first schematic structural diagram of the mowing device 200 according to the present embodiment; fig. 7 is a second schematic structural view of the mowing device 200 according to the present embodiment; fig. 8 is a third schematic structural view of the mowing device 200 according to the present embodiment. Referring to fig. 5 to 8, in the present embodiment, the grass cutting device 200 specifically includes a mounting base 201, a driving mechanism 205, a grass cutting mechanism 217, and a tensioning mechanism 231.

In detail, the mounting seat 201 is a thin plate-shaped oval plate-shaped structure, the mounting seat 201 is used for being fixedly connected with the main beam 107 of the frame body 101, and the width of the mounting seat 201 can be matched with the size of the mounting space 105, or can be slightly smaller or larger than the size of the mounting space 105, so that the mounting seat 201 can carry the mowing mechanism 217 to perform mowing operation. Of course, in other embodiments, the structure and shape of the mounting base 201 may be adjusted as needed, and for example, the shape may be selected from a disk shape, a rectangular parallelepiped shape of a thin sheet, and the like, so that the driving mechanism 205 and the mowing mechanism 217 may be stably mounted.

In detail, the driving mechanism 205 includes a driving wheel 207, a driving member 209, and a transmission assembly 211. The driving wheel 207 is rotatably disposed on the mounting base 201, the driving member 209 can be selected as a motor, an output shaft of the motor is in transmission connection with the driving wheel 207, and when the motor rotates forward or backward, the motor can drive the output shaft to rotate, so as to drive the driving wheel 207 to rotate relative to the mounting base 201. The transmission assembly 211 comprises a plurality of transmission wheels 213 and a transmission member 215, and each transmission wheel 213 is rotatably disposed on the mounting base 201 and can rotate relative to the mounting base 201. The transmission member 215 is simultaneously sleeved on the driving wheel 207 and the plurality of transmission wheels 213, so that when the motor rotates forward or backward, the output shaft of the motor can drive the driving wheel 207 to rotate relative to the mounting base 201, thereby driving the transmission member 215 to move, and further simultaneously driving the plurality of transmission wheels 213 to rotate relative to the mounting base 201.

Corresponding to the structure of the transmission assembly 211, the mowing mechanism 217 specifically includes a plurality of mowing assemblies 219 corresponding to the plurality of transmission wheels 213, each mowing assembly 219 is in transmission connection with the transmission wheel 213 at the corresponding position, so that when the motor rotates forwards or backwards, the mowing assemblies 219 at the corresponding positions can be directly driven to rotate by the plurality of transmission wheels 213 for mowing. Meanwhile, any two adjacent mowing assemblies 219 may have a partial overlap in mowing area formed when rotating around the driving wheel 213. The grass cutting device 200 can save the installation space 105 of the installation seat 201 and effectively ensure the grass cutting efficiency through the matching arrangement of the plurality of transmission wheels 213 and the plurality of grass cutting assemblies 219. Moreover, the grass cutting areas formed by any two adjacent grass cutting assemblies 219 are overlapped, so that the problem of missed cutting can be effectively reduced.

In detail, the tensioning mechanism 231 is disposed on the mounting seat 201, and can be used for tensioning the transmission member 215. Therefore, the transmission member 215 under various working environments is in a tensioning state, so that the transmission member can adapt to different working environments, the normal operation of the transmission operation can be ensured, and the stable and reliable operation of the mowing assembly 219 can be ensured, so that the efficiency and the quality of the mowing operation can be ensured.

That is, the installation seat 201, the driving mechanism 205, the tensioning mechanism 231 and the mowing mechanism 217 are matched, so that the mowing device 200 can not only adapt to different working environments, but also reduce the occurrence of missed cutting and improve the working efficiency and quality. The structure of each mechanism is further explained below.

Referring to fig. 5 to 8 again, in the present embodiment, the driving wheel 213 and the driving wheel 207 of the driving mechanism 205 are both belt wheels, and the belt wheels are specifically wheel bodies having tooth-like structures on the outer sides. Correspondingly, the transmission member 215 is a transmission belt sleeved on the driving wheel 207 and the outer sides of the transmission wheels 213, the inner side of the transmission belt is provided with a tooth-shaped structure which can be matched with the tooth-shaped structure on the outer side of the belt wheel, so that when the transmission belt is sleeved on the outer sides of the transmission wheels 213 and the driving wheel 207, the inner side of the transmission belt can be meshed with the tooth-shaped structures of the transmission wheels 213 and the driving wheel 207, thereby ensuring that when the motor rotates forwards or backwards, the output shaft of the motor can stably drive the driving wheel 207 to rotate, and the driving wheel 207 can stably drive the transmission belt to move, so that the transmission wheels 213 can drive the mowing assembly 219 at the corresponding position to perform mowing operation, thereby ensuring mowing efficiency and quality.

Of course, in other embodiments, the driving wheel 213 and the driving wheel 207 can be configured as chain wheels, and correspondingly, the transmission member 215 can be configured as a chain that is simultaneously sleeved outside the driving wheel 207 and the plurality of driving wheels 213. Through the setting of chain and sprocket for when motor corotation or reversal, the output shaft of motor can drive the sprocket and rotate, thereby drives the chain and rotates, and then drives subassembly 219 of mowing and mow the operation.

Fig. 9 is a fourth schematic structural diagram of the mowing device 200 according to the present embodiment. Referring to fig. 5 to 9, in the present embodiment, the transmission assembly 211 specifically includes two transmission wheels 213, and the two transmission wheels 213 are disposed at an interval on the mounting base 201 and both can rotate relative to the mounting base 201. Moreover, the two driving wheels 213 are respectively located at two sides of the driving wheel 207, form a triangle structure with the driving wheel 207, and have the same distance with the driving wheel 207, so that the driving member 215 is disposed in an isosceles or equilateral triangle shape to ensure the stability of the transmission.

Correspondingly, the grass cutting mechanism 217 comprises two grass cutting assemblies 219, and the two grass cutting assemblies 219 are arranged in one-to-one correspondence with the two transmission wheels 213. Meanwhile, the transmission member 215 is simultaneously sleeved outside the two transmission wheels 213, so that when the motor rotates forward or backward, the two mowing assemblies 219 can be simultaneously driven to synchronously rotate in the same direction for mowing. Of course, in other embodiments, the number of the transmission wheels 213 may also be selected to be multiple, for example, three, four, or even more, and the embodiment is not limited; meanwhile, the installation position of the transmission wheel 213 can be adjusted according to the working environment, which is not limited in this embodiment.

Fig. 10 is a partially exploded view illustrating a first mowing assembly 219 of the mowing device 200 according to the present embodiment; fig. 11 is a partially exploded schematic view of a mowing assembly 219 of the mowing device 200 according to the present embodiment. Referring to fig. 10 and 11, in the present embodiment, each mowing assembly 219 is sleeved outside the transmission shaft 221 at a corresponding position to rotate along with the rotation of the transmission shaft 221.

In detail, each mowing assembly 219 comprises a mounting bracket 227 and a blade 229, wherein the mounting bracket 227 is sleeved outside the transmission shaft 221 and is fixedly connected with the transmission shaft 221 so as to rotate under the driving of the transmission shaft 221. Meanwhile, the blades 229 are disposed on the mounting bracket 227, and the blades 229 of different mowing assemblies 219 are all located at the same mounting height, so that mowing planes of the blades 229 are located on the same horizontal plane. Meanwhile, when the distance between any two adjacent transmission shafts 221 is smaller than the sum of the distances from the end parts of the two blades 229 at the corresponding positions to the transmission shafts 221 at the corresponding positions, namely the sum of the distances from each blade 229 to the transmission shaft 221 to which the blade 229 is mounted in the two blades 229 of the two adjacent mowing assemblies 219 is smaller than the distance between the two transmission shafts 221 to which the two blades 229 are mounted, it is indicated that mowing areas of the two mounting brackets 227 are overlapped when the two mounting brackets 227 rotate, and therefore the occurrence of a missing cutting phenomenon is effectively reduced.

Specifically, the mounting bracket 227 is bent to reduce the occupied space of the mounting bracket 227 so as to adapt to a narrower working environment. The mounting bracket 227 specifically includes a first mounting plate 265, a second mounting plate 267, and a third mounting plate 269 that are connected in this order. The first mounting plate 265 and the third mounting plate 269 are respectively located at two ends of the second mounting plate 267, and the connecting ends of the first mounting plate 265 and the third mounting plate 269 with the second mounting plate 267 are obliquely arranged, and the tail ends of the first mounting plate 265 and the third mounting plate 269 are arranged in parallel with the second mounting plate 267, so that the whole mounting bracket 227 is approximately in a convex bending structure. Correspondingly, each mowing assembly 219 comprises two blades 229, the two blades 229 are respectively arranged at two ends of the mounting bracket 227 at corresponding positions, one blade 229 is fixedly connected with the tail end of the first mounting plate 265, the other blade 229 is fixedly connected with the tail end of the third mounting plate 269 and extends in the horizontal direction, and the distances between the two blades 229 and the transmission shaft 221 are the same, so that the blades 229 at the two ends can perform mowing operation on the same plane, and the mowing efficiency is ensured. Of course, in other embodiments, the distances between the two blades 229 and the transmission shaft 221 may be different, so as to ensure that the mowing operation can be performed normally, and the embodiment is not limited.

Meanwhile, when each mowing assembly 219 comprises two blades 229 arranged at two ends of the mounting bracket 227, the distance between any two adjacent drive shafts 221 is smaller than the sum of the distances from the end of any blade 229 of the two mowing assemblies 219 at the corresponding positions to the drive shaft 221 at the corresponding positions, that is, the distance from any blade 229 of one mowing assembly 219 to the drive shaft 221 at which the blade 229 is mounted is always smaller than the sum of the distances from any blade 229 of the other mowing assembly 219 to the drive shaft 221 at which the blade 229 is mounted, so that the blades 229 of the two adjacent mowing assemblies 219 can form a situation that two mowing areas have partial overlap as shown in fig. 4, thereby effectively reducing the occurrence of missed mowing situations.

It should be noted that in the present embodiment, since the two mowing assemblies 219 rotate synchronously and in the same direction and all the blades 229 are displaced by the same mounting height, the initial positions of the mounting brackets 227 of the two mowing assemblies 219 can be set to be perpendicular to each other or at an angle to avoid collision of the two mowing assemblies 219 during mowing operation.

It should be noted that, in this embodiment, the maximum dimension of the lawn mowing surface overlapped in the middle can be set to 15mm, that is, the distance between the overlapped parts of the blades 229 is 15mm at the widest dimension, so as to effectively reduce the occurrence of the skip-cutting condition, and at the same time, ensure that the two driving wheels 213 can be driven precisely by the driving member 215, and effectively prevent the blades 229 from interfering with each other when the mounting bracket 227 rotates. Of course, in other embodiments, the size of the mowing area of the middle overlapping portion may be adjusted according to requirements, so as to ensure that each mowing assembly 219 can efficiently perform mowing operation, and the present embodiment is not limited.

More specifically, referring to fig. 10 again, in the present embodiment, the mowing assembly 219 further includes a bearing seat 247, a bearing 255, an oil seal seat 251, and a shaft seat boss 259. The shaft seat boss 259 is fixedly connected with the second mounting plate 267, the shaft seat boss 259 has a cavity, and the transmission shaft 221 can penetrate through the cavity to be fixedly connected with the second mounting plate 267. The bearing seat 247 and the oil seal seat 251 are sleeved on the outer side of the transmission shaft 221 and used for being matched with the mounting seat 201, the bearing seat 247 is provided with an accommodating cavity 249, a bearing 255 is arranged in the accommodating cavity 249, and the bearing 255 is located between the oil seal seat 251 and the bearing seat 247 so as to ensure the smoothness of the transmission shaft 221 in the rotating process and reduce the friction force on the transmission shaft 221. Of course, in this embodiment, the mowing assembly 219 further includes an oil seal member and a snap spring having a conventional structure, which is not described in this embodiment again.

Meanwhile, referring to fig. 11 again, in the embodiment, the blades 229 are specifically flail knives, one end of one blade 229 is fixedly connected to the first mounting plate 265 through a fixing member, the other end of the one blade 229 extends in a direction away from the first mounting plate 265, one end of the other blade 229 is fixedly connected to the third mounting plate 269 through a fixing member, the other end of the other blade 229 extends in a direction away from the third mounting plate 269, and the fixing member may be a matching structure of the screw 242 and the double nut 241. Through the arrangement of the flail knife, the trimmed lawn is relatively flat and can retract in time when encountering obstacles, the blade 229 and the mowing shaft are protected, and damage is reduced. It should be noted that, in this embodiment, each blade 229 is further provided with a limiting sleeve 243, and the limiting sleeve 243 is sleeved outside the screw 242 for limiting the movement position of the blade 229 at the corresponding position, so as to ensure the normal operation of the mowing operation. Of course, in other embodiments, the blade 229 may be a general sheet-like structure having a blade edge, and the present embodiment is not limited thereto.

Referring again to fig. 5-8, in order to fully ensure that the mowing areas formed by any two adjacent mowing assemblies 219 rotating around the driving wheel 213 can have partial overlapping under various environments, in the present embodiment, the driving wheel 207 and at least one of the driving wheels 213 can be adjustably mounted to the mounting base 201. For example, at least two driving wheels 213 of the plurality of driving wheels 213 can be adjustably mounted to the mounting base 201 to adjust the distance between the two driving wheels 213, so as to adjust the overlapping size of the mowing area between the two driving wheels; for another example, when the plurality of driving wheels 213 are all adjustably mounted on the mounting seat 201, the position of the mowing assembly 219 in transmission connection with the driving wheels 213 is adjustable, so that the distance between any two adjacent mowing devices 200 is adjustable, and further, any two adjacent mowing areas are overlapped, and further, the occurrence of the missed mowing phenomenon is reduced; meanwhile, in the embodiment, since the number of the transmission wheels 213 is specifically two, in the embodiment, two transmission wheels 213 are specifically arranged to be mounted on the mounting seat 201 in a position-adjustable manner, so that the mowing areas of two opposite mowing devices 200 can be partially overlapped, and the occurrence of missed mowing situation can be further reduced; moreover, when the grass cutting device 200 of the present embodiment is used for cutting weeds in different working environments or with different hardness or depth, the reaction force of the weeds on the grass cutting assemblies 219 is different, and the overlapping portion of the grass cutting areas of two adjacent grass cutting assemblies 219 is also different to ensure a continuous and complete grass cutting surface.

Of course, in other embodiments, the installation position of the driving wheel 207 may be adjustable, and when the driving wheel 207 is adjustably installed on the installation seat 201, the position of the driving wheel 207 relative to the installation seat 201 changes, so as to adapt to more complex working environments, for example, when working in a working environment with a narrow space, the position of the driving wheel 207 may be adjusted to be closer to the transmission wheel 213, so that the space occupied by the whole transmission assembly 211 is smaller, thereby meeting the working requirements of the working environment, ensuring the mowing efficiency and quality, and reducing the occurrence of missed mowing situations.

That is, in the present embodiment, on one hand, the grass cutting device 200 can save the installation space 105 of the installation seat 201 and effectively ensure the grass cutting efficiency by the cooperation of the plurality of transmission wheels 213 and the plurality of grass cutting assemblies 219; on the other hand, the driving wheel 207 and at least one of the driving wheels 213 are mounted on the mounting base 201 in an adjustable position, so that the positions of the driving wheel 207 or the driving wheels 213 can be adjusted when the lawn mower is used in a scene with a complicated structure, such as a narrow space, uneven ground flatness, or different grass plants, so as to meet different scene requirements, thereby ensuring high-efficiency mowing operation and reducing missing cutting; moreover, when the positions of the transmission wheels 213 are adjustable, the overlapping of mowing areas can be realized by adjusting the positions of any two adjacent transmission wheels 213, so that the occurrence of missed mowing can be further reduced.

It should be noted that, in other embodiments, both of the two driving wheels 213 may be only rotatably mounted on the mounting base 201; meanwhile, one driving wheel 213 can only rotate relative to the mounting base 201, and the other driving wheel 213 not only rotates relative to the mounting base 201, but also can move relative to the mounting base 201, so that the requirement of overlapping mowing areas can be met, and the embodiment is not limited.

More specifically, in order to ensure that the mounting positions of the driving wheels 213 on the mounting base 201 are adjustable, in this embodiment, a sliding groove may be respectively formed in the corresponding position of the mounting base 201, and the sliding groove may be a long groove, a curved groove, or even a special-shaped groove, which may satisfy the requirement that the distance between two adjacent driving wheels 213 is adjustable. In this embodiment, a long groove is specifically selected, and the long groove is a through groove penetrating through two sides of the mounting seat 201, and the transmission shaft 221 of each transmission wheel 213 is in inserting fit with the long groove at a corresponding position and can move along the extending direction of the long groove to be in inserting fit with any position of the long groove in a position-adjustable manner, so that the mowing areas of the two mowing assemblies 219 are overlapped, and further, the missing cutting phenomenon is reduced.

It should be noted that, in this embodiment, the two driving wheels 213 can be connected to the wall body at the position of the long slot of the mounting base 201 through the shaft base by a bolt, and the distance between the two mowing assemblies 219 can be adjusted by adjusting the mounting position of the shaft base relative to the long slot, so as to adapt to more operation scenes and reduce the occurrence of the missed cutting phenomenon.

Of course, in other embodiments, a guide rail may be provided at the installation position of the transmission wheel 213 of the installation base 201, and the transmission shaft 221 of the transmission wheel 213 is provided with a roller structure, so that the transmission shaft 221 can be slidably engaged with the slide rail to adjust the installation position of the transmission shaft relative to the installation base 201; alternatively, a plurality of mounting holes may be formed around the mounting position of the driving wheel 213 of the mounting seat 201, and the plurality of mounting holes are arranged in an annular array or irregularly, so that the driving wheel 213 may be matched with the mounting hole at any position to adjust the mounting position thereof, which is not limited in this embodiment.

Referring to fig. 4 to 8 again, in the present embodiment, the mounting base 201 has a first side and a second side, wherein the first side is a side close to the frame 101 of the unmanned aerial vehicle 100, and the second side is a side far from the frame 101 of the unmanned aerial vehicle 100. The driving member 209, the driving wheel 207, the transmission member 215 and the plurality of transmission wheels 213 are disposed on the first side, the driving wheel 207 is rotatably disposed on the first side of the mounting base 201 via a driving shaft, and each transmission wheel 213 is rotatably disposed on the mounting base 201 via a transmission shaft 221. Meanwhile, the transmission shaft 221 of each transmission wheel 213 penetrates from the first side to the second side, and the mowing assemblies 219 are disposed on the second side and are connected with the portion, extending out of the transmission shaft 221 of the transmission wheel 213, of the corresponding position, so as to rotate under the driving of the transmission wheel 213 to perform mowing operation. The driving mechanism 205 and the mowing assembly 219 are respectively arranged at two sides of the mounting seat 201, so that on one hand, the space at two sides of the mounting seat 201 can be fully utilized, and the space occupied by the whole mowing device 200 is reduced to adapt to more complex working environment; on the other hand, the two are arranged on two sides of the mounting seat 201 and separated by the mounting seat 201, and the mounting seat 201 can protect structures such as the driving part 209, the driving wheel 207, the transmission wheel 213 and the transmission part 215 of the driving mechanism 205, so that the driving mechanism 205 is prevented from being damaged in the rotation process of the mowing assembly 219, and the service life of each part is prolonged.

Of course, in other embodiments, the driving mechanism 205 and the mowing assembly 219 may be disposed on the first side or the second side of the mounting base 201, so as to ensure that the mowing assembly 219 can normally operate to mow grass, and the present embodiment is not limited thereto.

Optionally, in this embodiment, the driving mechanism 205 further includes a protective casing 261, the protective casing 261 is covered on the outer side of the driving mechanism 205 and is fixedly connected to the first side of the mounting base 201, so as to form a protective structure together with the first side of the mounting base 201 and wrapping the driving wheel 207, the transmission wheel 213 and the transmission member 215, thereby further ensuring the safety of the driving mechanism 205 and ensuring the service life thereof. Meanwhile, it should be noted that the motor may be fixedly connected to the protective housing 261, and an output shaft of the motor extends into the protective housing 261 from the protective housing 261 to be fixedly connected to a driving shaft of the driving wheel 207, so that when the motor rotates forward and backward, the driving wheel 207 may be driven to rotate, and further the driving member 215 and the driving wheel 213 may be driven to move in sequence, so that the mowing assembly 219 may perform mowing operation.

Fig. 12 is a schematic structural diagram of the tensioning mechanism 231 of the grass cutting device 200 according to the present embodiment. Referring to fig. 6 to 8 and fig. 12, in the present embodiment, the tensioning mechanism 231 specifically includes a base 233 and a tensioning wheel 235, the base 233 is fixedly disposed at the first end of the mounting base 201, and the tensioning wheel 235 is movably disposed on the base 233 along a direction close to or away from the transmission member 215, and is used for cooperating with the transmission member 215 to tension the transmission member 215. For example, when the drive member 215 is too loose, the tensioning wheel 235 may be driven adjacent to the drive member 215 and into engagement with the drive member 215 to tension the drive member 215; similarly, when the transmission member 215 is too tight, the transmission wheel 213 is hard to rotate normally, and the tensioning wheel 235 can be driven to be away from the transmission member 215, so that the transmission member 215 returns to the normal tightness, and the orderly mowing operation is ensured.

More specifically, in the present embodiment, a mounting groove 262 is formed on a side of the base 233 away from the mounting seat 201, and the mounting groove 262 extends in a direction toward the transmission member 215. And a screw 237 is movably arranged in the mounting groove 262, and the screw 237 is in threaded fit with the base 233. The tension wheel 235 is fixedly connected with the screw 237 through the fixed seat 234, when the tightness of the transmission member 215 needs to be adjusted, the screw 237 can be rotated, so that the screw 237 moves relative to the base 233, and the tension wheel 235 is driven to move in the direction close to and away from the transmission member 215, so as to tension the transmission member 215, and ensure the normal operation of mowing operation.

It should be noted that, in this embodiment, the tension wheel 235 has a fitting groove 263, and when the tension wheel 235 is fitted with the transmission member 215, the transmission member 215 is inserted into and fitted with the fitting groove 263, so as to ensure the stability and reliability of the transmission member 215 during the process of tensioning the transmission member 215 by the tension wheel 235.

It should be noted that, in the present embodiment, the tension wheel 235 is specifically engaged with the outer edge of the transmission member 215. Since the inner edge of the transmission member 215 needs to be engaged with the toothed structure of the transmission wheel 213, when the tension wheel 235 is engaged with the outer edge of the transmission member 215, the tightness of the transmission member 215 can be effectively adjusted, and the stability and reliability of the transmission member 215 during the movement can be ensured. Of course, in other embodiments, the tension wheel 235 can be engaged with the inner edge of the transmission member 215, and the embodiment is not limited thereto.

Referring to fig. 5 to 8 again, in the present embodiment, the lawn mowing device 200 further includes at least one guide wheel 239, for example, specifically, two guide wheels 239 are selected in the present embodiment, and the two guide wheels 239 are rotatably disposed on the mounting base 201 through the guide wheel shafts, and one guide wheel 239 is located between one of the two driving wheels 213 and the driving wheel 207, and the other guide wheel 239 is located between the other of the two driving wheels 213 and the driving wheel 207. Meanwhile, the inner edge of the transmission member 215 is simultaneously matched with the driving wheel 207 and the plurality of transmission wheels 213, and the two guide wheels 239 are matched with the outer edge of the transmission member 215, so that the transmission member 215 is in a tight state and is used for increasing the wrap angle of the transmission member 215, ensuring that the transmission member 215 has no sliding in the transmission process and ensuring the stability and the reliability of the transmission member 215. Of course, in other embodiments, the number and the installation position of the guide wheels 239 may also be selected and adjusted according to requirements, for example, three or four guide wheels may be selected, so as to ensure the transmission stability of the transmission member 215, and the embodiment is not limited.

Referring to fig. 1 to 5 again, in the embodiment, the mowing device 200 is further provided with a height adjusting mechanism 203 according to requirements, one end of the height adjusting mechanism 203 is connected to the mounting seat 201, and the other end of the height adjusting mechanism 203 is connected to the main beam 107 of the frame body 101, so as to adjust the distance between the mowing assembly 219 and the main beam 107, thereby facilitating adjustment of the mowing height of the mowing assembly 219 to meet the operation requirements of grass plants in different scenes and different types. It should be noted that the height adjusting mechanism 203 may be selected as an electric jack structure, and may be selected as a linear adjusting structure such as an air cylinder, which may be selected as required, and this embodiment is not described again.

It should be further noted that the number of the height adjusting mechanisms 203 may be selected to be plural, which may be adjusted and selected according to the size of the mounting seat 201, in this embodiment, two height adjusting mechanisms 203 are selected to be arranged at intervals, and in other embodiments, three, four, or more height adjusting mechanisms may also be selected, which is not limited in this embodiment.

The following describes in detail the installation process and the operation principle of the mowing device 200 and the unmanned aerial vehicle 100 according to the embodiment of the present invention:

when the grass cutting device 200 is installed, the driving wheel 207 is installed on the installation base 201 through the driving shaft and is in transmission connection with the driving piece 209, then the two transmission wheels 213 are installed on the installation base 201 through the transmission shaft 221, the installation positions of the transmission wheels 213 are adjusted to proper positions, the transmission piece 215 is sleeved outside the two transmission wheels 213 and the driving wheel 207, and the guide wheel 239 and the tensioning mechanism 231 are installed on the installation base 201, so that the guide wheel 239 and the tensioning wheel 235 are matched with the outer side edge of the transmission piece 215; then, two blades 229 are respectively arranged on two sides of a mounting bracket 227 to form a mowing assembly 219 in an assembling manner, and the two mowing assemblies 219 are respectively fixedly connected with the transmission shafts 221 at corresponding positions; secondly, adjusting the mounting positions of the two transmission wheels 213 and the two mounting brackets 227 at corresponding positions to ensure that the mowing areas of the blades 229 are partially overlapped and the two mounting brackets 227 are vertically arranged in an initial state; finally, the protective housing 261 is covered on the driving wheel 207, the transmission member 215 and the transmission wheel 213. In the process of mounting the unmanned aerial vehicle 100, the mounted mowing device 200 may be mounted to the main beam 107 via the height adjustment mechanism 203.

When the unmanned aerial vehicle 100 is used for mowing, the unmanned aerial vehicle 100 is controlled to move to a specified position, then the driving piece 209 is started, so that the driving piece 209 rotates forwards or backwards to drive the output shaft to rotate, the driving shaft is driven to rotate, the transmission piece 215 is driven to move, the two transmission wheels 213 are driven to rotate synchronously and in the same direction, and the two mowing assemblies 219 rotate synchronously and in the same direction to mow.

In the above process, on one hand, the grass cutting device 200 can save the installation space 105 of the installation seat 201 and simultaneously effectively ensure the grass cutting efficiency by the matching arrangement of the plurality of transmission wheels 213 and the plurality of grass cutting assemblies 219; on the other hand, the driving wheel 207 and at least one of the plurality of driving wheels 213 are mounted on the mounting base 201 in an adjustable position, and when the driving wheel 207 and the driving wheels 213 are used in scenes with narrow space or complex structures, the positions of the driving wheel 207 and the driving wheels 213 can be adjusted, so that different scene requirements can be used, the efficient proceeding of mowing operation is ensured, and the occurrence of missed cutting is reduced; moreover, when the positions of the transmission wheels 213 are adjustable, the overlapping of mowing areas can be realized by adjusting the positions of any two adjacent transmission wheels 213, so that the occurrence of missed mowing is further reduced; meanwhile, since the transmission member 215 can be tensioned by the tensioning wheel 235 all the time, the mowing device 200 can ensure that the transmission member 215 is in the tensioned state under any working environment, thereby ensuring that the mowing assembly 219 can stably and reliably perform mowing operation under various working environments, and improving environmental adaptability, mowing efficiency and mowing quality.

To sum up, the embodiment of the utility model provides a grass cutting device 200 and unmanned aerial vehicle 100, its operation demand that can be according to adaptable different operation scenes, and can reduce the emergence of the condition of cutting neglected to can improve operating efficiency and quality.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mowing device, comprising:

a mounting seat;

the driving mechanism comprises a driving wheel, a driving piece and a transmission assembly; the driving wheel is arranged on the mounting seat, and the driving piece is in transmission connection with the driving wheel and is used for driving the driving wheel to rotate; the transmission assembly comprises a transmission part and a plurality of transmission wheels arranged on the mounting base; the transmission part is sleeved on the driving wheel and the plurality of driving wheels at the same time and is used for driving the plurality of driving wheels to rotate at the same time;

the mowing mechanism comprises a plurality of mowing assemblies in one-to-one transmission connection with the transmission wheels, and each mowing assembly is driven by the transmission wheel at the corresponding position to rotate so as to perform mowing operation; the mowing areas formed by any two adjacent mowing assemblies when rotating are partially overlapped;

and the tensioning mechanism is arranged on the mounting seat and is used for tensioning the transmission piece.

2. The mowing device according to claim 1, wherein:

the driving wheel is rotatably arranged on the mounting seat through a driving shaft, and each driving wheel is rotatably arranged on the mounting seat through a transmission shaft;

each mowing assembly comprises a mounting support and blades, the mounting support is sleeved on the corresponding position of the transmission shaft, the blades are arranged on the mounting support, the blades are located at the same mounting height, and the distance between any two adjacent transmission shafts is smaller than the sum of the distances between the end portions of the two blades at the corresponding positions and the end portions of the two blades at the corresponding positions.

3. The mowing device according to claim 2, wherein:

each mowing assembly comprises two blades, the two blades are respectively arranged at two ends of the mounting bracket at corresponding positions, and the distance between any two adjacent transmission shafts is smaller than the sum of the distances from the end part of any blade in the two mowing assemblies at corresponding positions to the transmission shafts at corresponding positions.

4. The mowing device according to claim 1, wherein:

the tensioning mechanism comprises a base and a tensioning wheel, the base is fixedly connected with the mounting base, and the tensioning wheel is movably arranged on the base along a direction close to or far away from the transmission part and is used for being matched with the transmission part to tension the transmission part.

5. The mowing device according to claim 4, wherein:

the base is provided with a mounting groove extending towards the transmission part, the tensioning mechanism further comprises a screw rod, the screw rod is accommodated in the mounting groove and is in threaded connection with the base, and the tensioning wheel is fixedly connected with the screw rod and is used for approaching or departing from the transmission part in the process that the screw rod rotates relative to the base.

6. A mowing device according to any one of claims 1 to 5, wherein:

the mowing device further comprises at least one guide wheel, and the guide wheel is rotatably arranged on the mounting seat through a guide wheel shaft; the inner side edge of the transmission piece is matched with the driving wheel and the plurality of driving wheels, and the guide wheel is matched with the outer side edge of the transmission piece.

7. A mowing device according to any one of claims 1 to 5, wherein:

the driving wheel and at least one of the driving wheels are arranged on the mounting seat in a position-adjustable manner.

8. The mowing device according to claim 7, wherein:

at least two of the driving wheels are arranged on the mounting seat in a position-adjustable manner so as to adjust the distance between two adjacent driving wheels; the mounting seat is provided with a sliding groove which is arranged corresponding to the driving wheel with the adjustable position, and a transmission shaft of the driving wheel is in inserting fit with the sliding groove with the corresponding position and can move along the inner part of the sliding groove so as to be in inserting fit with any position of the sliding groove with the adjustable position.

9. A mowing device according to any one of claims 1 to 5, wherein:

the driving wheels and the driving wheels are belt wheels, and the transmission part is a driving belt which is sleeved on the driving wheels and the outer sides of the driving wheels;

alternatively, the first and second electrodes may be,

the driving wheel and the driving wheel are chain wheels, and the driving part is a chain which is sleeved on the driving wheel and the outer sides of the driving wheels simultaneously.

10. An unmanned device, comprising:

a frame and a mowing device according to any one of claims 1 to 9, wherein the mowing device is arranged on the frame and used for mowing.