CN203735069U

CN203735069U - Intelligent hay mower

Info

Publication number: CN203735069U
Application number: CN201420055582.9U
Authority: CN
Inventors: 强尼·鲍瑞那图
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2014-01-28
Filing date: 2014-01-28
Publication date: 2014-07-30
Anticipated expiration: 2024-01-28

Abstract

The utility model provides an intelligent hay mower which comprises a shell body, a walking motor, a cutting motor, a controller, cutting elements and a battery pack. A containing cavity is formed in the shell body in a hollowed mode, and the shell body comprises a shell body bottom and an opposite shell body top. The walking motor is arranged in the containing cavity. The cutting motor is arranged in the containing cavity. The controller is arranged in the containing cavity and controls the intelligent hay mower to walk and work automatically. The cutting elements are arranged at the shell body bottom and driven by the cutting motor to do rotating and cutting work. The battery pack provides power for the intelligent hay mower. The intelligent hay mower is provided with crawler belts, the crawler belts are driven by the walking motor to drive the intelligent hay mower to walk, and the shortest distance from the cutting elements of the intelligent hay mower to the outer edge of a machine body of the intelligent hay mower is smaller than 10 cm. Therefore, more grassland outside a boundary can be cut by the intelligent hay mower, and the intelligent hay mower can have the better traction capacity and the better cross-country maneuvering characteristics through the crawler belts.

Description

Intelligent mower

Technical Field

The utility model relates to an intelligent mower.

Background

A lawnmower is a lawn-trimming tool that typically includes a wheel set, a housing, and a cutting system capable of riding on a lawn and cutting the lawn. At present, a mower mainly uses a gasoline engine or an alternating current mains supply system as cutting power and finishes lawn care and trimming by manually pushing the mower to walk back and forth on a lawn. However, when a gasoline engine is used, combustion exhaust gas is generated, and great noise is generated, which causes serious and multiple pollution to operators and working environment, and especially, the working area of the mower is usually household grassland, public greenbelts and the like, which has serious influence on the quality of life of the public. The lawn mower using the commercial power as the power needs to be connected with a cable for working, so that the application range is limited and certain dangerousness is realized. Moreover, the labor intensity for pushing the mower to cut grass is higher no matter the gasoline type mower or the commercial power mower.

Compared with the traditional products, the intelligent mower has the automatic walking function, can prevent collision, prevents the outgoing line within the range, automatically returns to charge, has the safety detection and the battery power detection, has certain climbing capacity, and is particularly suitable for being used in places such as family courtyards and public greenbelts to trim and maintain the lawn. The intelligent mower can automatically finish the work of trimming the lawn without manual direct control and operation, has low power, low noise, no pollution and exquisite and attractive appearance, and greatly reduces manual operation.

The appearance of intelligent lawn mower brings great convenience to users, and users can be relieved from heavy gardening nursing work. When the intelligent lawn mower is used, a working area of the intelligent lawn mower needs to be set in a lawn, and the intelligent lawn mower can cut in a reciprocating mode in the working area. However, in practice, the working area of the lawn is smaller than the actual working area of the lawn, and the area of the lawn outside the working area is larger, which requires a lot of manpower and time for the user to handle. Therefore, users expect an intelligent lawn mower that can cut off a larger remaining lawn area outside the preset area to further reduce the burden of lawn care labor on the users.

SUMMERY OF THE UTILITY MODEL

For overcoming prior art's defect, the utility model aims to solve the problem that a can amputate more intelligent lawn mowers of surplus lawn area outside presetting the work area is provided, further alleviates the burden of user's lawn nursing labour.

In order to solve the above problem, the technical scheme of the utility model is that: an intelligent lawn mower for automatically walking and mowing grass on a ground surface, comprising: the shell is hollow in the shell to form an accommodating cavity and comprises a shell bottom and an opposite shell top; a traveling motor installed in the accommodating chamber; a cutting motor installed in the receiving chamber; the controller is arranged in the accommodating cavity and used for controlling the intelligent mower to automatically walk and work; the cutting element is arranged at the bottom of the shell and is driven by the cutting motor to perform rotary cutting work; a battery pack for providing energy for the intelligent mower; the intelligent mower is characterized in that two sides of the intelligent mower are provided with crawler belts, the crawler belts are driven by a walking motor to drive the intelligent mower to walk, and the shortest distance from a cutting element of the intelligent mower to the outer edge of the mower body is less than 10 cm.

Preferably, one surface of the crawler belt, which is in contact with the ground, is provided with a reinforced anti-skid rib.

Preferably, the surface of the crawler belt, which is in contact with the ground, is made of a soft material.

Preferably, the soft material is rubber.

Preferably, the structure of the crawler belt is a metal rubber hinge type.

Preferably, the metal rubber hinge is a double pin type.

Preferably, the crawler is detachably mounted on the intelligent mower.

Preferably, the intelligent mower further comprises a driving shaft driven to rotate by the cutting motor, and a rotating disc arranged on the driving shaft and rotating along with the driving shaft, wherein the cutting element is arranged at the edge of the rotating disc.

Preferably, the rotating disc is pivotally provided with a plurality of cutting elements which are equidistantly distributed along the circumference of the rotating disc.

Preferably, the cutting element has a rotation axis, and the rotation axis has different distances from both sides of the body.

Preferably, the two sides of the intelligent mower are symmetrically provided with crawler frames for mounting a crawler, and each crawler frame comprises a bottom, a top and side walls.

Preferably, the bottom and the top of the track frame are matched and connected with the track, and the front and the back of the side wall of the track frame are respectively provided with a guide wheel and a driving wheel.

Preferably, the intelligent mower has a trimming mode in which the intelligent mower walks along the boundary line and cuts.

Compared with the prior art, the utility model discloses a track is installed to intelligent lawn mower both sides, thereby the track passes through walking motor drive and drives the walking of intelligent lawn mower, and the shortest distance at intelligent lawn mower cutting element to fuselage outside border sets up to being less than 10 cm. Because the crawler belt is used for replacing the wheel set to drive the intelligent mower to walk, the structure of the crawler belt is greatly different from that of the wheel set, and a user hardly touches a cutting element of the intelligent mower, so that the safety of the user can be well protected, and the safety requirement is met. Meanwhile, the distance from the cutting element to the outer edge of the machine body can be set to be less than 10cm, so that the cutting element is arranged to be closer to the outer edge of the machine body under the condition of the same width of the machine body, and the intelligent mower can obtain a larger cutting range. The intelligent lawn mower can cut more residual lawn area outside the boundary line, thereby further reducing the labor burden of a user in nursing the lawn outside the boundary line.

In addition, when the crawler belt is used as the walking device of the intelligent mower, compared with the intelligent mower using the wheel set as the walking device, the crawler belt has a larger contact area with the lawn, so that the pressure of the whole intelligent mower on the lawn surface is greatly reduced, and the damage to the lawn is reduced. In addition, when the wheel set is used as walking equipment, the contact between the wheel set and the lawn surface is point contact, the pressure on the lawn is large, and when the wheel set slips due to insufficient adhesion to the lawn surface, the wheel set can tear the grass on the lawn, so that the lawn is greatly damaged. The reinforced anti-slip ribs are arranged on the supporting surface of the track, the contact area with the ground is large, the friction force is larger, the track is not easy to slip, and the adhesive force between the track and the ground is increased. And when the crawler belt is used as the walking equipment of the intelligent mower, the intelligent mower can have better off-road maneuverability, and the performances of climbing, crossing ditches and the like are better.

Drawings

Fig. 1 is a schematic perspective view of a crawler-type intelligent mower provided by an embodiment of the present invention;

fig. 2 is a schematic view of the tracked intelligent mower shown in fig. 1 from a bottom perspective.

Wherein,

10 case 20 rotating disk 30 guide wheel

12 casing top 22 cutting element 32 drive wheel

14 casing bottom 24 crawler 34 walking motor

16 cutting motor 26 track frame 100 intelligent mower

18 drive axle 28 track frame side wall

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The lawn mower of the embodiment is an intelligent robot lawn mower, comprises a battery pack for providing working energy, and further comprises an intelligent control system, and can automatically walk on a lawn and mow the lawn under the unattended condition.

In the description of the present invention, unless otherwise noted, directional terms such as left, right, front, rear, up and down, etc., are referred to with reference to the direction in which the intelligent lawn mower 100 shown in fig. 1 travels normally.

Fig. 1 and fig. 2 show an intelligent lawn mower 100 provided by the embodiment of the present invention, where the intelligent lawn mower 100 includes a housing 10, a cavity is formed in the housing 10, and a plurality of mutually supporting components are accommodated in the cavity, so as to support the intelligent lawn mower 100 for realizing various functions.

The housing 10 includes a housing top 12 and an opposing housing bottom 14, the housing bottom 14 mounting a cutting motor 16, a drive shaft 18 driven for rotation by the cutting motor 16, a rotatable disk 20 disposed on the drive shaft 18 and rotatable with the drive shaft 18, an edge of the rotatable disk 20 pivotally mounting at least one cutting member 22 such that the cutting member 22 is rotatable about the pivot axis relative to the rotatable disk 20. In general, the motor may directly drive the driving shaft to rotate, or may drive the driving shaft to rotate through a transmission mechanism such as a gear or a turbine.

In this embodiment, a plurality of cutting elements 22, preferably three in this embodiment, are pivotally mounted to the edge of the rotatable disk 20 and are equally spaced around the circumference of the rotatable disk 20 to provide a balance between cutting capacity and load for the mower, and thus high cutting efficiency. Of course, the number of cutting elements 22 provided may be set as desired, i.e. there may be two cutting elements, symmetrically arranged with respect to the rotating disc; or four, five cutting elements, etc., equally spaced along the circumference of the rotary disk 20. In the present embodiment, the cutting motor 16 is an electric motor, but a gasoline engine or a diesel engine may be used instead of the electric motor, which is well known to those skilled in the art.

Of course, the intelligent mower 100 may be provided without the turn disc 20, with the cutting element 22 being directly eccentrically disposed on the housing bottom 14. The number of the cutting members 22 may be one or more, and the rotating shaft of the cutting member 22 may have different distances from both sides of the body due to the eccentric arrangement.

As shown in fig. 2, the intelligent lawn mower 100 is symmetrically provided with track frames 26 for mounting the tracks 24 on both sides, and the track frames 26 include a bottom, a top and side walls. The bottom and top of the track frame 26 are coupled to the track 24, and the side walls 28 of the track frame 26 are provided with leading wheels 30 and driving wheels 32, respectively, in front and rear. The housing bottom 14 is also provided with a pair of travel motors 34, the pair of travel motors 34 being used to drive the drive wheels 32 on the side tracks 24, respectively. The travel motor 34 drives the driving wheel 32 and ultimately the crawler belt 24 to operate, and the intelligent lawn mower 100 performs a cutting operation under the driving of the crawler belt 24. As is known, when an obstacle such as a tree is encountered during the cutting operation of the intelligent lawn mower 100, the direction is automatically turned. When the intelligent lawn mower 100 needs to turn, the difference in the tracks is usually used to turn the intelligent lawn mower 100, that is, the track on one side of the intelligent lawn mower 100 turns fast, and the track on the other side of the intelligent lawn mower turns slow. The difference of the tracks is formed by cutting off partial power of the track on one side and increasing the speed of the track on the other side, which is called separation steering and is used for quick and small-angle steering. And secondly, the power is completely cut off, the crawler on one side is braked, and the crawler on the other side rotates to form the rotation of the crawler on one side and the rotation of the crawler on the other side, which is called the pivot steering and is used for the slow-speed large-angle steering. And the other mode is a mode for realizing the fast pivot steering, namely, one side of the crawler belt rotates forwards, and the other side of the crawler belt rotates backwards, so that the fast pivot steering can be realized.

The track 24 is constructed in the form of a metal rubber hinge, wherein the metal rubber hinge is a double pin hinge. The metal rubber hinged track has several rubber rings vulcanized on metal pins and press fitted into the pin holes of track shoe, so that there is no direct friction between the pin and the pin hole, and only the rubber rings produce elastic torsion during torsion, resulting in low noise and long service life. The end connector for the double-pin metal rubber track is connected with the two pins of the two track shoes, so that the stress condition is good, and the disassembly and the assembly are more convenient. The surface of the crawler belt 24 contacting with the ground is made of soft materials, such as rubber, so that the abrasion of the crawler belt 24 on the lawn when the intelligent mower 100 walks can be reduced. Meanwhile, one surface of the crawler 24, which is in contact with the ground, is provided with a reinforced anti-skid rib so as to improve the firmness of the crawler plate and the adhesive force between the crawler 24 and the ground. To facilitate maintenance, the tracks 24 are removably mounted to the intelligent mower 100.

Safety issues are an important consideration for the design and manufacture of intelligent mowers. For example, when a common wheeled intelligent mower is operated, if a child grabs the mower by hand from the outer edge of the mower body for curiosity, fingers of the child can extend into the bottom of the mower, and if the blade is designed to be too close to the outer edge of the mower body, the fingers of the child can be cut by the mower blade, so that danger is caused. International safety regulations require that the distance from the blade to the outer edge of the body be set to be no less than 12cm for a standard wheeled smart mower to protect the safety of the user or touch.

Because the intelligent mower 100 designed at present does not adopt a wheel set as a walking device, but adopts the crawler belt 24, the safety condition and the condition of using the wheel set are different. When the track 24 is used as a walking device, the track frame side wall 28 can prevent a user or other touch persons from inserting hands into the mower and being cut by the rotating blade, so that the safety of the user or the touch persons is greatly guaranteed, and the requirements of international safety regulations are met. Because the blades are no less than 12cm from the outer edge of the body without the safety requirements of the reel mower using the crawler 24, the cutting element 22 of the intelligent mower 100 can be set to be less than 10cm from the outer edge of the body.

The outer edge of the body refers to the lateral outermost part of the intelligent mower 100, which may be, but is not limited to, the following cases: when the intelligent mower 100 consists of a machine body and an outer floating cover arranged on the machine body, the outer edge of the machine body refers to the edge of the outer floating cover; secondly, when the intelligent mower 100 only comprises the main body and is not provided with the outer floating cover, the outer edge of the main body is the outer edge of the shell; thirdly, when the crawler belt 24 of the intelligent mower 100 is installed on the outermost side of the machine body and is in an exposed state, the outer edge of the machine body refers to the outermost edge of the crawler belt 24.

The numerical values of the distances mentioned herein refer to the shortest distance of the blade to the outer edge of the body. Fig. 2 is an illustration of the third case of the outer edge definition mentioned above, in which case the shortest distance of the blade to the outer edge of the fuselage is the shortest distance of the blade to the outer edge of the track 24. For further explanation, the shortest distance is the distance represented by the letter d in the figure. And more specifically, the distance between the outermost edge of cutting member 22 and the outermost edge of track 24 when cutting member 22 is rotated such that its outermost edge is parallel to the outermost edge of track 24. Thus, in the case of this embodiment, the distance d of the cutting element 22 from the outer edge of the fuselage can be set to a value of less than 10 cm.

As is well known to those skilled in the art, before the intelligent lawn mower 100 works, a path planning needs to be performed to preset a working area for the intelligent lawn mower 100, and then the intelligent lawn mower 100 can move back and forth in the preset working area to perform a cutting operation, so that great convenience is brought to a user, and trouble of lawn care is eliminated. However, in practice, the preset working area is often smaller than the actual area of the lawn. Thus, there is a remaining circle of uncut grass outside the predetermined area, which requires the user to perform maintenance by himself.

When the intelligent mower 100 uses the crawler belt 24 as a walking device, a user or other touch persons cannot stretch into the mower by hands to touch the blades of the mower, so that the risk of being cut by the blades of the mower is avoided, the safety performance is high, and the requirements of international safety regulations are met. This eliminates the need to limit the minimum distance of the cutting element 22 from the outer edge of the fuselage to ensure safety. Therefore, the shortest distance of the cutting element 22 of the tracked intelligent lawnmower 100 to the outer edge of the body in the present design is set to be less than 10 cm. The cutting element 22 may be positioned closer to the outer edge of the body for the track-type intelligent lawnmower 100 than for the reel-type intelligent lawnmower. Thus, the tracked intelligent mower 100 has a larger cutting range than the wheeled intelligent mower for the same width of the body. In this way, when the cutting operation is performed in the trimming mode in the preset working area, the intelligent lawn mower 100 can travel along the boundary line and perform cutting. Because the crawler-type intelligent mower with the same body width has a larger cutting range than the wheel-type intelligent mower, the crawler-type intelligent mower can cut more lawns outside the boundary line compared with the wheel-type intelligent mower, so that the residual lawns outside the boundary line are less, and the labor burden of a user in trimming and nursing the uncut lawn areas outside the boundary line is further reduced.

In addition, the crawler belt 24 is used as the walking device of the intelligent mower 100, compared with the intelligent mower using the wheel set as the walking device, the crawler belt 24 has a larger contact area with the lawn, so that the pressure of the whole intelligent mower 100 on the lawn surface is greatly reduced, and the damage to the lawn is reduced. In addition, when the wheel set is used as walking equipment, the contact between the wheel set and the lawn surface is point contact, the pressure on the lawn is large, and when the wheel set slips due to insufficient adhesion to the lawn surface, the wheel set can tear the grass on the lawn, so that the lawn is greatly damaged. The reinforced anti-slip ribs are arranged on the supporting surface of the track 24, the contact area with the ground is large, the friction force is larger, the track is not easy to slip, and the adhesive force between the track and the ground is increased. Moreover, when the crawler belt 24 is used as a traveling device of the intelligent mower 100, the mower can have better off-road maneuverability, and the performance of climbing, crossing a ditch and the like is better.

It will be appreciated by those skilled in the art that other embodiments of the present invention are possible, as long as the technical spirit of the present invention is the same as or similar to the present invention, or any changes and substitutions based on the present invention are within the scope of the present invention.

Claims

1. An intelligent lawn mower for automatically walking and mowing grass on a ground surface, comprising:

the shell is hollow in the shell to form an accommodating cavity and comprises a shell bottom and an opposite shell top;

a traveling motor installed in the accommodating chamber;

a cutting motor installed in the receiving chamber;

the controller is arranged in the accommodating cavity and used for controlling the intelligent mower to automatically walk and work;

the cutting element is arranged at the bottom of the shell and is driven by the cutting motor to perform rotary cutting work;

a battery pack for providing energy for the intelligent mower; the intelligent mower is characterized in that the intelligent mower is provided with a crawler belt, the crawler belt is driven by a walking motor to drive the intelligent mower to walk, and the shortest distance from a cutting element of the intelligent mower to the outer edge of the machine body of the intelligent mower is less than 10 cm.

2. The intelligent lawn mower of claim 1, wherein: the intelligent mower further comprises a driving shaft driven to rotate by the cutting motor, and a rotating disc arranged on the driving shaft and rotating along with the driving shaft, wherein the cutting element is arranged on the edge of the rotating disc.

3. The intelligent lawn mower of claim 2, wherein: a plurality of cutting elements are arranged on the rotating disc in a pivot mode and are distributed at equal intervals along the circumferential direction of the rotating disc.

4. The intelligent lawn mower of claim 1, wherein: the cutting element is provided with a rotating shaft, and the distance between the rotating shaft and the two sides of the machine body is unequal.

5. The intelligent lawn mower of claim 1, wherein: the intelligent mower is characterized in that crawler frames used for mounting a crawler are symmetrically arranged on two sides of the intelligent mower, and each crawler frame comprises a bottom, a top and a side wall.

6. The intelligent mower of claim 5, wherein: the bottom and the top of the crawler frame are connected with the crawler in a matching mode, and the front portion and the rear portion of the side wall of the crawler frame are respectively provided with a guide wheel and a driving wheel.

7. The intelligent lawn mower of claim 1, wherein: and one surface of the crawler belt, which is in contact with the ground, is provided with a reinforced anti-skid rib.