CN216058297U - Chassis and intelligent lawn mower - Google Patents

Abstract

The utility model provides a chassis and an intelligent mower, wherein the chassis comprises: a frame; the cutting module is arranged below the frame and comprises a plurality of cutting mechanisms which are sequentially arranged along the bottom surface of the frame, and each cutting mechanism is used for executing cutting task operation; the moving module is arranged below the frame and comprises 3 driving wheels arranged on two opposite sides of the cutting module; 3 driving wheels enclose a triangle; the 3 driving wheels comprise two first driving wheels positioned on the same side of the cutting module and 1 second driving wheel positioned on one side of the cutting module far away from the first driving wheels; the second driving wheel is positioned on the middle line of the two first driving wheels. The embodiment of the application provides a chassis and intelligent lawn mower, and its ability of strideing across the obstacle and climbing is stronger, cutting efficiency is high and the complete machine size is compact.

Description

Chassis and intelligent lawn mower

Technical Field

The utility model relates to the field of intelligent mowers, in particular to a chassis and an intelligent mowers.

Background

The common driving modes of the existing intelligent mower chassis comprise two-wheel drive and four-wheel drive. Further, the two-wheel-drive lawnmower is weak in ability to ride over obstacles and climb slopes. Four-wheel drive mowers are more powerful at crossing obstacles and climbing slopes, but are more costly and inflexible to steer. And the existing intelligent mower adopts a single cutter head arrangement mode. If the diameter of the adopted cutter head is smaller, the cutting diameter of the cutter head is smaller, and then the cutting efficiency of the intelligent mower is not high. If in order to improve cutting efficiency, adopt the great blade disc of diameter, then can be because the diameter increase of blade disc and then make intelligent lawn mower's whole size grow.

Therefore, there is a need for a chassis and an intelligent lawn mower to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application provides a chassis and intelligent lawn mower, its ability of striding over obstacle and climbing is stronger, cutting efficiency is high and the complete machine size is compact.

The above object of the present invention can be achieved by the following technical solutions: a chassis, comprising: a frame; the cutting module is arranged below the frame and comprises at least two cutting mechanisms which are sequentially arranged along the bottom surface of the frame, and each cutting mechanism is used for executing cutting task operation; the moving module is arranged below the frame and comprises 3 driving wheels, and the 3 driving wheels are arranged on two opposite sides of the cutting module along the length direction of the frame; and 3 driving wheels surround a triangle.

As a preferred embodiment, the 3 driving wheels include two first driving wheels located at one side of the cutting module along the length direction of the frame and 1 second driving wheel located at the other side of the cutting module along the length direction of the frame; the second driving wheel is positioned on the middle line of the two first driving wheels.

As a preferred embodiment, the second driving wheel is located behind the first driving wheel in the traveling direction of the chassis; the cutting module is positioned between the two first driving wheels so as to execute cutting task operation between the two first driving wheels.

As a preferred embodiment, the second drive wheel is located in front of the first drive wheel in the direction of travel of the chassis; the cutting module extends towards the second driving wheel along two sides of the width direction of the frame so as to be capable of executing cutting task operation on two sides of the second driving wheel.

In a preferred embodiment, the second driving wheel is a steering rotary driving wheel.

As a preferred embodiment, the method further comprises: and the protection module is arranged on at least one side of the cutting module along the width direction of the frame.

As a preferred embodiment, the method further comprises: the motor and the second driving wheel are arranged in parallel along the length direction of the frame, and the reduction gearbox is positioned between the motor and the second driving wheel; the input end of the reduction gearbox is in transmission connection with the rotating shaft of the motor, and the output end of the reduction gearbox is in transmission connection with the second driving wheel.

In a preferred embodiment, the motor is vertically arranged, and the tail part of the motor faces downwards.

In a preferred embodiment, the height of the tail of the motor from the ground is smaller than the diameter of the second driving wheel.

As a preferred embodiment, the output end of the reduction box is provided with a gear; the gear is in transmission connection with the second driving wheel; the diameter of the gear is smaller than that of the second driving wheel.

In a preferred embodiment, the outer diameter of the second driving wheel is smaller than the outer diameter of the first driving wheel, and the outer diameter of the second driving wheel is 100 mm to 200 mm.

As a preferred embodiment, the cutting module comprises at least two of the cutting mechanisms; the outer diameter of the cutting mechanism is 100 mm to 300 mm; the cutting size of the cutting module is not less than 200 mm; the longitudinal dimension of the cutting module along the length direction of the frame is smaller than the cutting dimension of the cutting module along the width direction of the frame.

As a preferred embodiment, the cutting module comprises 3 cutting mechanisms, and the 3 cutting mechanisms are arranged in parallel in the width direction of the frame.

As a preferred embodiment, 3 cutting mechanisms are arranged in parallel and obliquely in the width direction of the carriage.

As a preferred embodiment, 3 cutting mechanisms are arranged in a staggered manner in the width direction of the carriage.

An intelligent lawn mower, comprising: such as the chassis described above.

The application provides a chassis and intelligent lawn mower's beneficial effect is: the chassis and the intelligent mower thereof are provided with a cutting module and a moving module; the cutting module comprises a plurality of cutting mechanisms which are sequentially arranged along the bottom surface of the frame, and each cutting mechanism is used for executing cutting task operation. The cutting size of the whole cutting module can be larger than that of a single cutting mechanism through a plurality of cutting mechanisms; thereby improving the cutting efficiency on one hand and enabling the whole machine to be compact in size on the other hand. The moving module comprises 3 driving wheels, and the 3 driving wheels are arranged on two opposite sides of the cutting module along the length direction of the frame; and 3 driving wheels surround a triangle. Therefore, the chassis has stronger capacity of crossing obstacles and climbing through the three driving wheels, the probability of maintaining and processing abnormal events of the machine is reduced, and the working efficiency is improved. Therefore, the embodiment of the application provides a chassis and an intelligent mower thereof, and the chassis has the advantages of stronger obstacle crossing and climbing capacity, high cutting efficiency and compact overall size.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a bottom view of a chassis according to a first embodiment of the present application;

FIG. 2 is a bottom view of the chassis according to the second embodiment of the present application;

FIG. 3 is a schematic view of a plurality of cutting mechanisms in a cutting module according to an embodiment of the present disclosure arranged side by side along a straight line;

FIG. 4 is a schematic view of a plurality of cutting mechanisms in a cutting module according to an embodiment of the present disclosure, arranged side by side along a straight line and inclined;

FIG. 5 is a schematic diagram of a plurality of cutting mechanisms in a cutting module according to an embodiment of the present disclosure arranged in a staggered manner;

FIG. 6 is a side view of the chassis according to the first embodiment of the present application;

FIG. 7 is a top view of the chassis according to the first embodiment of the present application;

fig. 8 is a sectional view taken along a-a of fig. 7.

Description of reference numerals:

11. a frame; 13. a cutting mechanism; 15. a cutting module; 16. a drive wheel; 18. a first drive wheel; 19. a second drive wheel; 21. a motor; 23. a reduction gearbox; 25. a gear; 27. and a protection module.

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 to 8. The chassis provided by one embodiment of the application comprises a frame 11; the cutting module 15 is arranged below the frame 11 and comprises at least two cutting mechanisms 13 which are sequentially arranged along the bottom surface of the frame 11, and each cutting mechanism 13 is used for executing cutting task operation; the moving module is arranged below the frame 11 and comprises 3 driving wheels 16, and the 3 driving wheels 16 are arranged on two opposite sides of the cutting module 15 along the length direction of the frame 11; the 3 driving wheels 16 enclose a triangle.

The technical scheme shows that: the chassis described in the embodiment of the present application is provided with a cutting module 15 and a moving module; the cutting module 15 includes a plurality of cutting mechanisms 13 sequentially arranged along the bottom surface of the frame 11, and each cutting mechanism 13 is used for performing a cutting task operation. The cutting size of the whole cutting module 15 can be larger than that of the single cutting mechanism 13 through the plurality of cutting mechanisms 13; thereby improving the cutting efficiency on one hand and enabling the whole machine to be compact in size on the other hand. The moving module comprises 3 drive wheels 16. The 3 drive wheels 16 are disposed on opposite sides of the cutting module 15 along the length of the carriage 11. The 3 driving wheels 16 enclose a triangle. Therefore, the chassis has stronger capacity of crossing obstacles and climbing through the three driving wheels 16, the probability of maintaining and processing abnormal events of the machine is reduced, and the working efficiency is improved.

In the present embodiment, the vehicle body frame 11 has a frame structure as a whole. As shown in fig. 1, for example, the frame 11 has a flat rectangular configuration as a whole. Further, the frame 11 has front and rear ends that are opposite to each other in the traveling direction of the frame 11. For example, as shown in fig. 1, the carriage 11 moves rightward. The front end of the frame 11 is located on the right side. The rear end of the frame 11 is located on the left side.

In the present embodiment, the cutting module 15 is provided below the carriage 11. For example, as shown in fig. 1 and 2, fig. 1 shows a bottom view of a chassis according to a first embodiment of the present application. Fig. 2 shows a bottom view of the chassis according to the second embodiment of the present application. As shown in fig. 1, the cutting module 15 is disposed on the bottom surface of the carriage 11.

Further, the cutting module 15 includes a plurality of cutting mechanisms 13 sequentially arranged along the bottom surface of the frame 11. The plurality may be 2, 3, 4, 5, etc., and this application does not specify so. As shown in fig. 1 and 2, the cutting module 15 includes 2 cutting mechanisms 13. Specifically, fig. 1 shows a schematic structural view of the chassis described in the first embodiment of the present application. Fig. 2 shows a schematic structural view of the chassis described in the second embodiment of the present application.

Further, the chassis of this application embodiment still includes: a protection module 27. The protection module 27 is provided on at least one side of the cutting module 15 in the width direction of the frame 11. For example, as shown in fig. 1, the width direction of the vehicle body frame 11 is the vertical direction. The protection module 27 is one. The one protection module 27 is provided to the upper side edge of the frame 11. The protection module 27 is used to protect the user from being cut by the cutting module 15 at the side edge of the frame 11. Further, the protection module 27 is a shield provided on the cutting module 15.

Further, in the first embodiment, the second drive wheel 19 is located in front of the first drive wheel 18 in the direction of travel of the chassis. For example, as shown in fig. 1, the chassis moves to the right. The second drive wheel 19 is located to the right of the first drive wheel 18. That is, in the first embodiment, 1 secondary driving wheel 19 serves as a front wheel. The two primary drive wheels 18 serve as rear wheels. And the 1 second driving wheel 19 is a steering rotary driving wheel for controlling the rotation of the chassis and further controlling the moving direction of the chassis. Further, the cutting module 15 extends toward both sides of the second drive wheel 19 in the width direction of the frame 11 to be able to perform a cutting task operation on both sides of the second drive wheel 19. I.e. the cutting modules 15 are arranged at the side of the chassis. The cutting module 15 is closer to the edge of the chassis, and for the edge area of the lawn, the front side of the edge of the cutting area of the cutting module 15 is pressed without wheels (that is, the front side of the edge of the cutting area of the cutting module 15 is pressed without the second driving wheel 19), so that the cutting module 15 can cut grass without edge leakage, and the middle missed cutting part of the chassis can be cut through the chassis for multiple times due to grass pressing by the second driving wheel 19). Specifically, the cutting module 15 includes a plurality of cutting mechanisms 13 arranged side by side in the lateral direction of the carriage 11. The cutting mechanism 13 can thus be arranged on the side of the frame 11. And the cutting area of the cutting module 15 is closer to the edge of the frame 11. Since the cutting module 15 is capable of performing cutting tasks on both sides of the secondary drive wheel 19, the front side of the edge of the cutting area of the cutting module 15 is wheel-free and thus cutting to the edge is achieved without grass leakage. For missed cuts of the cutting module 15 due to the grass pressing of the second driving wheel 19 to be made by the chassis for a number of cuts, such an arrangement is better suited for a random cutting mode.

In the second embodiment, the second drive wheel 19 is located behind the first drive wheel 18 in the direction of travel of the chassis. For example, as shown in fig. 2, the chassis moves to the right. The second drive wheel 19 is located to the left of the first drive wheel 18. That is, in the second embodiment, one secondary driving wheel 19 serves as a rear wheel. The two primary drive wheels 18 serve as front wheels. And the second driving wheel 19 is a steering rotary driving wheel for controlling the rotation of the chassis and thus the moving direction of the chassis. In this way, in the present embodiment, since the two drive wheels 16 are provided at the front end of the vehicle body frame 11, the chassis has a strong ability to ride over obstacles and climb a slope. Further, the cutting module 15 is located between the two second driving wheels 19 to enable a cutting task operation to be performed between the two first driving wheels 18. I.e. the cutting module 15 is arranged between the two primary driving wheels 18_，Front side of middle position of cutting area of cutting module 15 is pressed grass without wheel_，The middle part of the cutting area can be completely cut, and the arrangement is more suitable for a path planning cutting mode. Specifically, the cutting module 15 includes a plurality of cutting mechanisms 13 arranged side by side in the lateral direction of the carriage 11. In this way the cutting means 13 can be arranged between the two second drive wheels 19. And the cutting mechanism 13 cuts the middle position of the working area. And the front side of the cutting mechanism 13 is free from wheel grass pressing, so that the middle part of the cutting area can be completely cut.

Further, as shown in fig. 3, 4, and 5, the cutting module 15 includes 3 cutting mechanisms 13. Further, a plurality of cutting mechanisms 13 are sequentially arranged along the bottom surface of the carriage 11. Specifically, as shown in fig. 3, 4, 5. Fig. 3 is a schematic diagram illustrating a plurality of cutting mechanisms 13 arranged side by side along a straight line in the cutting module 15 according to the embodiment of the present application. In this fig. 3, the cutting module 15 comprises 3 cutting mechanisms 13. The 3 cutting mechanisms 13 are arranged side by side in the width direction of the carriage 11. Specifically, the 3 cutting mechanisms 13 are linearly arranged in parallel in the up-down direction. Further, fig. 4 shows a schematic diagram of a plurality of cutting mechanisms 13 in the cutting module 15 according to the embodiment of the present application, which are arranged in parallel and obliquely along a straight line. In this fig. 4, the cutting module 15 comprises 3 cutting mechanisms 13. The 3 cutting mechanisms 13 are arranged side by side obliquely in the width direction of the carriage 11. Specifically, the 3 cutting mechanisms 13 are arranged side by side along a straight line extending obliquely upward. Further, fig. 5 shows a schematic diagram of a plurality of cutting mechanisms 13 in the cutting module 15 according to the embodiment of the present application, which are staggered back and forth. In this fig. 5, the cutting module 15 comprises 3 cutting mechanisms 13. The 3 cutting mechanisms 13 are arranged in a staggered manner in the width direction of the carriage 11. Specifically, the two cutting mechanisms 13 above the 3 cutting mechanisms 13 are arranged in parallel along a straight line extending obliquely upward, and the cutting mechanism 13 located at the lowest position is staggered leftwards. As shown in fig. 3 to 5, the cutting size of the entire cutting module 15 can be made larger than that of the single cutting mechanism 13 by the plurality of cutting mechanisms 13. Specifically, the cutting size of the entire cutting module 15 may be a cutting range in which the cutting module 15 performs a cutting task operation. In fig. 3 to 5, the cutting dimension of the cutting module 15 is the dimension of the cutting module 15 in the transverse direction of the vehicle frame 11. Specifically, in fig. 3 to 5, the lateral direction of the vehicle frame 11 is the up-down direction. The cutting dimension of the cutting module 15 thus becomes the dimension of the cutting module 15 in the up-down direction. As shown in fig. 3, the cutting dimension of the entire cutting module 15 is the sum of the diameters of the 3 cutting mechanisms 13. Further, as shown in fig. 4 and 5, the cutting size of the entire cutting module 15 is smaller than the sum of the diameters of the 3 cutting mechanisms 13. Further, each cutting mechanism 13 is used to perform a cutting task operation. Each cutting mechanism 13 may be a cutter head. The cutter head is rotatably arranged on the bottom surface of the frame 11. So that the cutting task can be performed when the cutter disc rotates.

In one embodiment, the cutting module 15 includes at least two cutting mechanisms 13. I.e. the cutting module 15 comprises two or more cutting mechanisms 13. Further, the outer diameter of the cutting mechanism 13 is 100 mm to 300 mm. The cutting means 13 is for example a small-diameter cutter head. The cutting diameter of the small-diameter cutter disc is 100 mm to 300 mm. The cutting module 15 with a large cutting range is formed by sequentially arranging a plurality of small-diameter cutterheads. Specifically, the cutting size of the cutting module 15 is not less than 200 mm. Preferably, the cutting module 15 may have cutting sizes of 300 mm to 320 mm, 340 mm to 360 mm, 460 mm to 480 mm, and 520 mm to 540 mm. Further, the cutter head of the existing intelligent mower is a single cutter head. The mowing width of the cutterhead is generally 140 mm to 220 mm, so that mowing efficiency is low. The cutting module 15 of the chassis according to the embodiment of the present application has a cutting size of not less than 200 mm. Further, the cutting module 15 of the chassis according to the embodiment of the present application may have a cutting size of 300 mm to 320 mm, 340 mm to 360 mm, 460 mm to 480 mm, and 520 mm to 540 mm. The cutting module 15 of the cutterhead according to the present embodiment of the application is such that the cutting size of the whole cutting module 15 is larger than that of a single cutting mechanism 13 by means of a plurality of cutting mechanisms 13; thereby improving the cutting efficiency.

Further, the longitudinal dimension of the cutting module 15 in the length direction of the frame 11 is smaller than the cutting dimension of the cutting module 15 in the width direction of the frame 11. That is, the longitudinal dimension of the cutting module 15 may be the dimension of the cutting module 15 along the length of the frame 11. For example, as shown in fig. 3 to 5, the longitudinal direction of the vehicle body frame 11 is the left-right direction. The longitudinal dimension of the cutting module 15 is the left-right direction. Further, as shown in fig. 3, the cutting module 15 has a longitudinal dimension a 1. The cutting size of the cutting module 15 is W1. As shown in fig. 4, the cutting module 15 has a longitudinal dimension a 2. The cutting size of the cutting module 15 is W2. As shown in fig. 5, the cutting module 15 has a longitudinal dimension a 3. The cutting size of the cutting module 15 is W3. As shown in fig. 3, the cutting module 15 has a cutting size W1. As shown in fig. 3, a1 is less than W1. As shown in fig. 4, a2 is less than W2. As shown in fig. 5, a3 is less than W3. The length of the frame 11 can be reduced by making the longitudinal dimension of the cutting module 15 smaller than the cutting dimension of the cutting module 15, that is, as shown in fig. 3 to 5, the dimension of the cutting module 15 in the left-right direction is smaller than the dimension in the up-down direction, so that the space of the frame 11 in the left-right direction occupied by the cutting module 15 is reduced, and the size of the frame 11 in the left-right direction is reduced, and the structure is compact.

In the present embodiment, the moving module is provided below the vehicle body frame 11. Further, the moving module comprises 3 driving wheels 16 arranged on opposite sides of the cutting module 15. As shown in fig. 1, for example, the moving module includes 3 driving wheels 16 provided at the front and rear sides of the cutting module 15. Therefore, the chassis has stronger capacity of crossing obstacles and climbing through the three driving wheels 16, the probability of maintaining and processing abnormal events of the machine is reduced, and the working efficiency is further improved. Further, the 3 driving wheels 16 enclose a triangle. Thus, one of the 3 drive wheels 16 can be used as a steering rotary drive wheel, so that various complex terrains can be overcome by the 3 drive wheels 16 enclosing a triangle. For example, soft terrain, dense grass, etc., can be overcome, resulting in enhanced ability to traverse obstacles and climb slopes.

In one embodiment, the 3 drive wheels 16 include two first drive wheels 18 located on one side of the cutting module 15 along the length of the frame 11 and 1 second drive wheel 19 located on the other side of the cutting module 15 along the length of the frame 11. The second drive wheel 19 is located on the middle line of the two first drive wheels 18. The secondary drive wheel 19 can thus be used as a steering rotary drive wheel.

Further, in the first embodiment, the outer diameter D2 of the second drive wheel 19 is smaller than the outer diameter D1 of the first drive wheel 18. That is, when the second driving wheel 19 is a front wheel and the first driving wheel 18 is a rear wheel, the outer diameter D2 of the second driving wheel 19 is smaller than the outer diameter D1 of the first driving wheel 18. Thus, the diameter of the second driving wheel 19 as the steering driving wheel 16 is smaller than that of the first driving wheel 18, so that the volume of the rotating driving wheel is smaller, the weight is lighter, the length of the frame in the longitudinal direction is smaller, and the chassis structure is more compact and lighter. For example, as shown in fig. 6 and 7, the longitudinal direction of the frame is the left-right direction. The secondary drive pulley 19 is located on the right side. And the dimension of the vehicle frame 11 in the left-right direction is smaller. Further, the diameter of the second drive wheel 19 as the steering drive wheel 16 is smaller relative to the first drive wheel 18, and thus the resistance received by the steering drive wheel 16 is smaller. Specifically, first, the contact area of the steering drive wheel 16 with the ground is smaller, and thus the steering friction of the ground surface to be overcome for steering the steering drive wheel 16 is smaller. Secondly, the area of the steering driving wheel 16 contacting with the turf on the ground in the vertical direction is smaller, so that the resistance arm of the turf received by the steering driving wheel 16 is smaller, and the steering resistance of the turf required to be overcome by the steering driving wheel 16 is smaller.

Further, the outer diameter D2 of the second driver 19 is 100 mm to 200 mm. Specifically, the outer diameter D2 of the second drive wheel 19 is greater than 60 millimeters and less than the outer diameter D1 of the first drive wheel 18. Since the step height of the intelligent mower is mostly 50 mm to 100 mm, and the obstacle crossing height of the driving wheel 16 is 0.5 times of the diameter of the driving wheel, the minimum diameter of the driving wheel 16 is 100 mm to 200 mm through the obstacle of 50 mm to 100 mm.

In one embodiment, the chassis of embodiments of the present application further comprises: a motor 21 arranged in parallel with the second driving wheel 19 along the length direction of the frame 11, and a reduction box 23 positioned between the motor 21 and the second driving wheel 19. For example, as shown in fig. 7 and 8, the motor 21 is arranged in parallel on the left side of the second drive pulley 19. The motor 21 and the secondary drive pulley 19 are located on the left and right sides of the reduction gearbox 23, respectively. The motor 21 is in transmission connection with the second driving wheel 19, so that the second driving wheel 19 can be driven to rotate by the motor 21. Further, the input end of the reduction box 23 is in transmission connection with the rotating shaft of the motor 21, and the output end of the reduction box 23 is in transmission connection with the second driving wheel 19. As shown in fig. 8, for example, a reduction gearbox 23 is located between the secondary drive pulley 19 and the motor 21. The input end of the reduction box 23 is the left end. The left end of the reduction box 23 is in transmission connection with a rotating shaft of the motor 21. The output end of the reduction box 23 is the right end. The right end of the reduction gearbox 23 is in transmission connection with the second driving wheel 19. Further, the motor 21 is vertically arranged and the tail of the motor 21 faces downward. The tail of the motor 21 is the side of the motor 21 away from the rotating shaft. I.e. the rotational axis of the motor 21 extends upwards. Further, a gear 25 is arranged on the output end of the reduction gearbox 23; the gear 25 is in transmission connection with the second driving wheel 19. And an inverted U-shaped structure is formed among the motor 21, the reduction gearbox 23 and the second driving wheel 19. Therefore, firstly, the tail part of the motor 21 faces to the lower side, and the distance H1 between the tail part of the motor 21 and the ground is small, so that the height H of the whole machine is small, and the compact arrangement of the whole machine is realized. Specifically, as shown in fig. 8, for example, the distance H1 between the tail of the motor 21 and the ground is the height of the tail of the motor 21. The height of the tail of the motor 21 from the ground is less than the diameter of the second driving wheel 19. Secondly, the tail part of the motor 21 faces to the lower side, and the gravity center of the motor 21 is inclined to the lower side, so that the gravity center of the whole machine is lowered, and the stability of the whole machine is improved. Thirdly, the gear 25 of the reduction box 23 is opposite to the center of the second driving wheel 19, and the longitudinal dimension H2 of the gear 25 of the reduction box 23 is small, so that the height H of the whole machine is small, and the compact arrangement of the whole machine is realized. In particular, the diameter of the gear 25 is smaller than the diameter of said second driving wheel 19.

Further, this application embodiment still provides an intelligent lawn mower, and it includes: such as the chassis described above. The intelligent mower has the advantages of strong obstacle crossing and climbing capacity, high cutting efficiency and compact overall size.

It should be noted that, in the description of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is considered as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. A chassis, characterized in that it comprises:

a frame;

the cutting module is arranged below the frame and comprises at least two cutting mechanisms which are sequentially arranged along the bottom surface of the frame, and each cutting mechanism is used for executing cutting task operation;

the moving module is arranged below the frame and comprises 3 driving wheels, and the 3 driving wheels are arranged on two opposite sides of the cutting module along the length direction of the frame; and 3 driving wheels surround a triangle.

2. The chassis of claim 1, wherein 3 of the drive wheels comprise two first drive wheels located on one side of the cutting module along the length of the frame and 1 second drive wheel located on the other side of the cutting module along the length of the frame; the second driving wheel is positioned on the middle line of the two first driving wheels.

3. The chassis of claim 2, wherein the second drive wheel is located rearward of the first drive wheel in a direction of travel of the chassis; the cutting module is positioned between the two first driving wheels so as to execute cutting task operation between the two first driving wheels.

4. The chassis of claim 2, wherein the second drive wheel is located forward of the first drive wheel in a direction of travel of the chassis; the cutting module extends towards the second driving wheel along two sides of the width direction of the frame so as to be capable of executing cutting task operation on two sides of the second driving wheel.

5. The chassis of any of claims 2 to 4, wherein the second drive wheel is a steerable rotary drive wheel.

6. The chassis of any of claims 2 to 4, wherein the cutting module comprises at least two of the cutting mechanisms; the outer diameter of each cutting mechanism is 100 mm to 300 mm; the cutting size of the cutting module is not less than 200 mm; the longitudinal dimension of the cutting module along the length direction of the frame is smaller than the cutting dimension of the cutting module along the width direction of the frame.

7. The chassis of any one of claims 2 to 4, wherein the cutting module comprises 3 cutting mechanisms, the 3 cutting mechanisms being arranged side by side in a width direction of the frame.

8. The chassis of any one of claims 2 to 4, wherein 3 of the cutting mechanisms are arranged side by side obliquely in the width direction of the frame.

9. The chassis of any one of claims 2 to 4, wherein 3 of the cutting mechanisms are staggered across the width of the frame.

10. An intelligent lawn mower, comprising: the chassis of any one of claims 1 to 9.

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