CN207476224U

CN207476224U - Robot grass trimmer

Info

Publication number: CN207476224U
Application number: CN201721379619.3U
Authority: CN
Inventors: 孔钊; 韩奎
Original assignee: Suzhou Cleva Precision Machinery and Technology Co Ltd
Current assignee: Suzhou Cleva Precision Machinery and Technology Co Ltd
Priority date: 2017-10-24
Filing date: 2017-10-24
Publication date: 2018-06-12
Anticipated expiration: 2027-10-24

Abstract

The utility model discloses a kind of robot grass trimmer, for automatically walk on the ground and mow, include the wheel of driving robot grass trimmer walking, for the transmission mechanism that wheel is driven to rotate, transmission mechanism includes the first drive and the second drive, wherein the first drive and the second drive are sequentially connected, first driving wheel tube is connected on the first central shaft, first central shaft has the first central axis, transmission mechanism further includes the first mounting base for surrounding and supporting the first central shaft, first mounting base has the first mounting base axis, first central axis and the first mounting base axis is parallel and setting spaced apart, first mounting base is spindle rotationally arranged on the first matrix, transmission mechanism is further included first locking mechanism of first mounting base with respect to the locking of the first matrix.The center distance regulating mechanism is ingenious in design, simple in structure, can be mounted in small space, tensioning operation is simple and easy to do.

Description

Robot grass trimmer

Technical field

The present invention relates to a kind of robot grass trimmer, the robot grass trimmer is for automatically walk on the ground and mows.

Background technology

Grass trimmer is a kind of lawn trimming tool, generally includes casing, wheel group and diced system, can be travelled on lawn And cut meadow.At present, grass trimmer mainly uses the power of petrol engine or electric main system as cutting, by people It pushes to move the reversion on lawn and come up and completes to trim the nursing on meadow.But during using petrol engine, burning can be generated Exhaust gas, and very big noise can be also sent out, serious, multiple pollution is caused to operator and working environment, is especially mowed The region of machine work is typically family meadow, public lawn etc., and the influence to the quality of life of the public is serious.And made using alternating current Grass trimmer for power needs to connect cable work, and use scope is restricted, and with certain risk.Also, no matter vapour Oily formula grass trimmer or alternating current grass trimmer push the labor intensity that it is mowed larger.

Compared with traditional product, robot mowing tool can prevent from colliding for automatically walk function, within the scope of prevent Outlet, auto-returned charging have safety detection and battery capacity detection, have certain climbing capacity, be especially suitable for family front yard The places such as institute, public lawn carry out turf-mown maintenance.Robot grass trimmer can be independently the work that cuts the grass on a lawn of completion, nothing Artificially it must directly control and operate, and power is low, noise is small, pollution-free, the exquisite beauty of shape, and manual operation is greatly lowered.

It is usually toothed belt transmission between the motor and wheel of robot grass trimmer, in order to avoid influencing robot grass trimmer Kinematic accuracy, each side of synchronous belt needs tensioning enough, and the tensioning method of usual synchronous belt has tensioning wheel tensioning, center distance regulation Tensioning；But tensioning wheel is tensioned, and generally requires a set of tension pulley mechanism, installing and using needs sufficiently large space, Wu Fashi With small space；If be tensioned using being realized by adjusting centre-to-centre spacing, while belt tension is ensured, it can not but ensure motor shaft It is parallel with wheel shaft.

Invention content

The purpose of the present invention is to provide a kind of robot grass trimmer, the transmission mechanism of the robot grass trimmer can protected In the case that card motor shaft is parallel with wheel shaft, the adjusting of centre-to-centre spacing between two drives is realized.

For achieving the above object, the present invention provides a kind of robot grass trimmer, for automatically walk on the ground simultaneously It mows, the wheel including driving the robot grass trimmer walking, the transmission mechanism for driving the wheel rotation, the biography Motivation structure includes the first drive and the second drive, wherein first drive is sequentially connected with second drive, First driving wheel tube is connected on the first central shaft, and first central shaft has the first central axis, the transmission mechanism The first mounting base for surrounding and supporting first central shaft is further included, first mounting base has the first mounting base axis, First central axis is parallel with the first mounting base axis and setting spaced apart, first mounting base can turn Dynamic is arranged on the first matrix, and the transmission mechanism further includes first with respect to the locking of the first matrix by first mounting base Locking mechanism.

As being further improved for an embodiment of the present invention, the transmission mechanism includes the of setting spaced apart One drive and the second drive, the transmission belt being stretched between first drive and second drive or transmission Chain.

As being further improved for an embodiment of the present invention, first drive include first gear, described second Drive includes second gear；The first gear and the direct or indirect engaged transmission of the second gear.

As being further improved for an embodiment of the present invention, first drive is driven by motor, in described first Mandrel is motor shaft.

As being further improved for an embodiment of the present invention, first central shaft passes through the two of first mounting base End, the both ends of first central shaft are respectively sleeved on first drive.

As being further improved for an embodiment of the present invention, second driving wheel tube is connected on the second central shaft, institute The second central shaft is stated with the second central axis, the transmission mechanism, which further includes, surrounds and supports the second of second central shaft Mounting base, second mounting base have the second mounting base axis, second central axis and the second mounting base axis Setting parallel and spaced apart, second mounting base are spindle rotationally arranged on the second matrix, and the transmission mechanism is also Including the second locking mechanism for locking opposite second matrix of second mounting base.

As being further improved for an embodiment of the present invention, set between first drive and second drive Jackshaft is equipped with, third drive and the 4th drive, the third drive and described first are socketed on the central shaft Tensioning has the first transmission belt between drive, and being tensioned between the 4th drive and second drive has the second transmission Band.

As being further improved for an embodiment of the present invention, first mounting base is perpendicular to first mounting base Section in the plane of axis is circle.

As being further improved for an embodiment of the present invention, first drive is driving wheel or driven wheel.

As being further improved for an embodiment of the present invention, the robot grass trimmer includes the first motor and the second electricity Machine, using the direction of travel of the robot grass trimmer as reference, the first motor by the first sets of transmission mechanism driving left side before, Wheel rotates synchronously afterwards, and the second motor is rotated synchronously by the forward and backward wheel on the second sets of transmission mechanism driving right side.

As being further improved for an embodiment of the present invention, first sets of transmission mechanism and/or second set of driver Structure includes the multistage transmission mechanism.

As being further improved for an embodiment of the present invention, first sets of transmission mechanism and second set of driver Structure structure is identical.

Compared with prior art, the beneficial effects of the present invention are：Due to the first central axis and the first mounting base axis Setting parallel and spaced apart, i.e. the first central shaft and the first mounting base eccentric setting are by rotating the first mounting base The adjusting of centre-to-centre spacing between two drives can be completed, the center distance regulating mechanism is ingenious in design, simple in structure, can be mounted on In small space, the adjusting of centre-to-centre spacing is easy to operation, and the is also can guarantee while ensureing and adjusting two drive centre-to-centre spacing One central axis and the first mounting base axis are parallel, so as to reduce the abrasion of transmission mechanism, extend transmission mechanism service life.

Description of the drawings

Fig. 1 is the vertical view for the robot grass trimmer that the specific embodiment of the invention provides.

Fig. 2 is that robot grass trimmer shown in FIG. 1 removes the vertical view after upper shell.

Fig. 3 is sectional view of the robot grass trimmer shown in Fig. 2 along P-P directions.

Fig. 4 is the longitudinal sectional view of the pulley assemblies of robot grass trimmer shown in Fig. 2.

Some specific embodiment parties of detailed description of the present invention by way of example rather than limitation with reference to the accompanying drawings hereinafter Formula.Same or similar component or part are denoted with identical reference numeral in attached drawing.It should be appreciated by those skilled in the art that What these attached drawings were not necessarily drawn to scale.

Specific embodiment

Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously The present invention is not limited, structure that those of ordinary skill in the art are made according to these embodiments, method or functionally Transformation is all contained in protection scope of the present invention.

It is to be appreciated that in the description of the present invention, term " first ", " second " etc. are only used for description purpose, without It is understood that indicate or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Define as a result, " the One ", one or more this feature can be expressed or be implicitly included to the feature of " second ".

In the present invention unless specifically defined or limited otherwise, the terms such as term " connected ", " connection " should do broad sense reason Solution, for example, it may be locking connection or being detachably connected or integral；It can be directly connected, can also pass through Intermediary is indirectly connected, and can be the interaction relationship of connection inside two elements or two elements.For this field Those of ordinary skill for, can understand the concrete meaning of above-mentioned term in the present invention as the case may be.

In the present invention unless specifically defined or limited otherwise, fisrt feature second feature it " on " or it " under " It can be in direct contact including the first and second features, it is not to be in direct contact but pass through it that can also include the first and second features Between other characterisation contact.

In the present invention unless specifically defined or limited otherwise, term " more " refers to two or more.

Term " preceding " " rear " " left side " " right side " is using robot grass trimmer direction of travel as reference.These indicating positions or position are closed The term of system, including but not limited to " preceding " " rear " " left side " " right side ", description merely for convenience rather than instruction imply meaning Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the present invention's Limitation.

Incorporated by reference to Fig. 1 and Fig. 2, embodiment of the present invention provide a kind of robot grass trimmer 100, on the ground from It is dynamic to walk and mow.Robot grass trimmer 100 includes housing 20, and housing 20 is equipped at least two motors and at least four wheels Son, using the direction of travel F of robot grass trimmer 100 as reference, the first motor B1 passes through the first sets of transmission mechanism driving left side Forward and backward wheel rotates synchronously, and the second motor B2 is rotated synchronously by the forward and backward wheel on the second sets of transmission mechanism driving right side.

Specifically, the first wheel X1 is left side front-wheel, Second wheel X2 is left side rear wheel, and third round X3 is behind right side Wheel, fourth wheel X4 are right side front wheel, and the first motor B1 leads to the first sets of transmission mechanism and drives the first wheel X1, Second wheel X2 same Step rotation, the second motor B2 drive third round X3, fourth wheel X4 to rotate synchronously by the second sets of transmission mechanism.

Incorporated by reference to Fig. 2 and Fig. 3, the first motor B1 and the second motor B2 structures are identical, below with one of them the first motor It is described for B1.

First motor B1 is fixed in the first motor cabinet C1, the first motor B1 and the first motor cabinet C1 eccentric settings.Tool Body, there is the first motor B1 the first motor shaft E1, the first motor shaft E1 to have the first electrical axis, and the first motor cabinet C1 has First motor cabinet axis, the first motor cabinet axis is parallel with the first electrical axis and setting spaced apart.

Present embodiment is preferred, and sections of the first motor cabinet C1 in the plane perpendicular to motor cabinet axis is circle. Compound with regular structure, reasonable design.

First motor cabinet C1 is rotatably arranged on housing 20, and the first motor cabinet C1 can turn around the first motor cabinet axis It is dynamic.Robot grass trimmer 100 further includes can be by the first motor cabinet C1 with respect to the first motor cabinet fixing piece D1 that housing 20 locks.The One motor cabinet fixing piece D1 can be the Conventional locking mechanisms such as cam lock mechanism, and effect is to fix the first motor cabinet C1 to make it It is not rotatable relative to housing 20.

First motor B1 is fixed in the first motor cabinet C1 so that the first motor cabinet C1 surrounds and supports the first motor shaft E1.It should be noted that the first motor cabinet C1, which surrounds and supports the first motor shaft E1, is not meant to that the first motor shaft E1 is necessary The first motor cabinet C1 is in direct contact, the housing that the first motor cabinet C1 surrounds and supports the first motor B1 can also make the first motor cabinet C1 Surround and support the first motor shaft E1.

During the belt that need to be tensioned between the belt wheel being socketed on the first motor shaft E1 and other belt wheels, the first motor cabinet is rotated C1, due to the first motor B1 and the first motor cabinet C1 eccentric settings, the first motor cabinet C1 rotations drive the first motor shaft E1 opposite Lateral shift occurs for housing 20, so that the belt tension between the belt wheel and other belt wheels on the first motor shaft E1.Pass through The first motor cabinet fixing piece D1 is operated, locked first motor cabinet C1 makes it that can not be rotated relative to housing 20, you can completes tensioning.

The center distance regulating mechanism, it is ingenious in design, it is simple in structure, it can be mounted in small space, tensioning operation is easy easily Row, also can guarantee that the first motor shaft E1 is parallel with the axis of other belt wheels, so as to reduce belt while belt tension is ensured Abrasion extends belt service life.

More optimizedly, the transmission mechanism of present embodiment can adjust the centre-to-centre spacing between two belt wheels, therefore to center Away from the accuracy of manufacture require reduce；And by adjusting the centre-to-centre spacing between two belt wheels to cooperate, make its drive gap In optimum state, transmission accuracy is improved.That is, under the premise of reducing the accuracy of manufacture, reducing production cost, ensure that Transmission accuracy.

Incorporated by reference to Fig. 2 and Fig. 3, in present embodiment, the first sets of transmission mechanism and the second sets of transmission mechanism structure phase Together, at least two pulley assemblies G are included per sets of transmission mechanism.

In present embodiment, the structure of each pulley assemblies G is identical, is carried out by taking one of pulley assemblies G as an example below Description.

Fig. 3 and Fig. 4 are referred to, pulley assemblies G includes pulley shaft H, the band wheel seat J for surrounding and supporting pulley shaft H, pulley shaft H passes through the both ends with wheel seat J, and pulley shaft H is respectively sleeved on a belt wheel M across the both ends with wheel seat J.Present embodiment In, belt wheel M is installed in by bearing on pulley shaft H.

Pulley shaft H and with wheel seat J eccentric settings.Specifically, pulley shaft H has belt wheel axis, band wheel seat J has band wheel seat Axis, setting parallel with belt wheel axis with wheel seat axis and spaced apart.

Present embodiment is preferred, with wheel seat J the section in the plane with wheel seat axis for circle.Structure is advised It is whole, reasonable design.

Band wheel seat J is spindle rotationally arranged on housing 20, and robot grass trimmer 100 further includes can will be with wheel seat J with respect to shell The band wheel seat fixing piece K that body 20 locks.Band wheel seat fixing piece K can be the Conventional locking mechanisms such as cam lock mechanism, effect It is that fixed pulley seat J makes it not rotatable relative to housing 20.

During the belt that need to be tensioned between the belt wheel being socketed on pulley shaft H and other belt wheels, rotation band wheel seat J, due to band Wheel shaft H with wheel seat J eccentric settings, the J rotations of band wheel seat drive pulley shaft H with respect to the generation lateral shift of housing 20 so that The belt tension between belt wheel and other belt wheels on pulley shaft H.By operating band wheel seat fixing piece, locked band wheel seat J makes it It can not be rotated relative to housing 20, you can complete tensioning.

The center distance regulating mechanism, it is ingenious in design, it is simple in structure, it can be mounted in small space, tensioning operation is easy easily Row, also can guarantee that pulley shaft H is parallel with the axis of other belt wheels while belt tension is ensured, so as to reduce the abrasion of belt, Extend belt service life.

Turning back to Fig. 2, in present embodiment, housing 20 is generally rectangular shaped, and the first motor B1 and the second motor B2 are leaned on respectively Two diagonal settings of nearly housing 20.Housing 20 is provided centrally with substantially rectangular frame section 22, and four pulley assemblies G are leaned on respectively Four angles setting of nearly frame section 22.Four wheels are set respectively close to four angles in the outside of housing 20, each wheel have with Its relatively-stationary wheel axle, each wheel axle are arranged between frame section 22 and first motor B1 or the second motor B2.

It is mutually flat between the first motor shaft E1, the second motor shaft E2, each wheel axle, each pulley shaft H in present embodiment Row, so set, the abrasion of belt Q being stretched between each axis can be reduced, so as to extend belt Q service lifes.

In present embodiment, the first sets of transmission mechanism and the second sets of transmission mechanism structure are identical, are driven below with first set It is described for mechanism.

It is socketed on the first motor shaft E1 of first motor B1 on first pulley M1, the first wheel axle Y1 and is socketed with the second band Tensioning has the first belt Q1 on wheel M2, first pulley M1 and the second belt wheel M2.When wanting the first belt Q1 of tensioning, the first electricity of rotation Engine base C1.

Third belt wheel M3, third belt wheel M3 are socketed on first wheel axle Y1 and the second belt wheel M2 is spaced apart sets Put, the first end of first pulley component G1 is socketed with the 4th belt wheel M4, between the 4th belt wheel M4 and third belt wheel M3 tensioning have the Two belt Q2.When wanting the second belt Q2 of tensioning, first band wheel seat J1 is rotated.

The second end of first pulley component G1 is socketed with the 5th belt wheel M5, and the second end of the second pulley assemblies G2 is socketed with Six belt wheel M6, being tensioned between the 5th belt wheel M5 and the 6th belt wheel M6 has third belt Q3.When wanting tensioning third belt Q3, rotation First band wheel seat J1 or the second band wheel seat J2 of rotation rotate the band wheel seats of first band wheel seat J1 and second simultaneously or successively J2 also can, repeat no more.Second pulley assemblies G2 is parallel with first pulley component G1 and positioned at 22 homonymy of frame section.

The first end of second pulley assemblies G2 is socketed with the 7th belt wheel M7, and the 8th belt wheel is socketed on Second wheel axis Y2 M8, being tensioned between the 7th belt wheel M7 and the 8th belt wheel M8 has the 4th belt Q4.When wanting the 4th belt Q4 of tensioning, the second band is rotated Wheel seat J2.

The first motor B1 leads to the first wheel X1 of the first sets of transmission mechanism driving as a result, Second wheel X2 is rotated synchronously, and first Sets of transmission mechanism includes multistage tape handler.Due in present embodiment, the second sets of transmission mechanism and the first sets of transmission mechanism Structure is identical, it will be understood that the second motor B2 will pass through including third pulley assemblies G3 and the 4th pulley assemblies G4 Two sets of transmission mechanism driving third round X3, fourth wheel X4 are rotated synchronously, and are repeated no more.And by controlling turn of two motors Speed is identical or different to complete the actions such as straight line moving, turning with mobile robot grass trimmer 100.

It may occur to persons skilled in the art that transmission mechanism can be deformed as needed, such as change the quantity of motor And quantity and position of position or change pulley assemblies etc., all use is contained with the same or similar scheme of present embodiment Lid is within the scope of the present invention.

In present embodiment, two belt wheel M on any one belt Q regard the first of setting spaced apart as Drive and the second drive, any one belt Q can regard the biography being stretched between the first drive and the second drive as Dynamic band, the first drive are completed to be tensioned by center distance regulating mechanism.That is, the first driving wheel tube is connected on the first central shaft（Arbitrarily One motor shaft E or any one pulley shaft H）On, the first central shaft has the first central axis（Any one electrical axis or Any one belt wheel axis）, tape handler further includes the first mounting base for surrounding and supporting the first central shaft（Any one electricity Engine base C or any one band wheel seat J）, the first mounting base is with the first mounting base axis（Any one motor cabinet axis is arbitrary One band wheel seat axis）, the first central axis and the first mounting base axis is parallel and setting spaced apart（Eccentric setting）, First mounting base is spindle rotationally arranged in the first matrix（Housing 20）On, tape handler is further included the first mounting base opposite the The first locking mechanism of one matrix locking（Motor cabinet fixing piece D or with wheel seat fixing piece K）.

Present embodiment illustrates the center distance regulating mechanism of the present invention, those skilled in the art by taking tape handler as an example It is contemplated that other transmission mechanisms, the centre-to-centre spacing as the present invention also can be used in chain-drive mechanism, gear drive adjusts machine Structure.

That is, transmission mechanism include the first drive and the second drive, wherein first drive with it is described Second drive is sequentially connected.Preferably, the transmission mechanism includes the first drive and second of setting spaced apart Drive, the transmission belt or transmission chain being stretched between first drive and second drive.It is another preferred, institute It states the first drive and includes first gear, second drive includes second gear；The first gear and second tooth The direct or indirect engaged transmission of wheel.The transmission mechanism of the present invention can adjust the centre-to-centre spacing between two drives, therefore centering The heart away from the accuracy of manufacture require reduce；And by adjusting the centre-to-centre spacing between two drives to cooperate, make its transmission Gap is in optimum state, improves transmission accuracy.That is, under the premise of reducing the accuracy of manufacture, reducing production cost, protect Transmission accuracy is demonstrate,proved.

As previously mentioned, two belt wheel M on any one belt Q regard the first transmission of setting spaced apart as Wheel and the second drive, then the first drive can be driving wheel or driven wheel.

In addition to two belt wheel M on any one belt Q be considered as setting spaced apart the first drive and The first run on second drive, any two or more than two belt Q being continuously driven can also regard interval as respectively with end wheel The first drive and the second drive of certain distance setting, the first drive complete belt Q's by center distance regulating mechanism Tensioning.It repeats no more.

As previously mentioned, in present embodiment, the first drive can be driven by motor B, and the first central shaft is motor shaft E.

As previously mentioned, when the first central shaft is any one pulley shaft H, the first central shaft passes through the first mounting base（Accordingly Band wheel seat J）Both ends, the both ends of the first central shaft are respectively sleeved on the first drive.

Tape handler between any one motor B and any one belt wheel M can pass through rotary electric machine seat C or band Wheel seat J completes tensioning or priority rotary electric machine seat C and completes simultaneously or jointly to be tensioned with wheel seat J.During common tensioning, the biography Motivation structure has at least two center distance regulating mechanisms, with the first motor B1 to first pulley component G1, specifically with first pulley For M1 to the 4th belt wheel M4, first pulley M1 be the first drive, the 4th belt wheel M4 be the second rotating wheel, the first drive （First pulley M1）It is socketed in the first central shaft（First motor shaft E1）On, the first central shaft has the first central axis（First Electrical axis）, tape handler further includes the first mounting base for surrounding and supporting the first central shaft（First motor mount C1）, First mounting base has the first mounting base axis（First motor mount axis）, the first central axis and the first mounting base axis Setting parallel and spaced apart（Eccentric setting）, the first mounting base is spindle rotationally arranged in the first matrix（Housing 20）On, Tape handler is further included first locking mechanism of first mounting base with respect to the locking of the first matrix（First motor cabinet fixing piece D1）, the second drive（4th belt wheel M4）It is socketed in the second central shaft（First band wheel shaft H1）On, the second central shaft has second Central axis（First pulley axis）, tape handler further includes the second mounting base for surrounding and supporting the second central shaft（First Band wheel seat J1）, the second mounting base is with the second mounting base axis（First band wheel seat axis）, the second central axis and second installation Seat axis is parallel and setting spaced apart（Eccentric setting）, the second mounting base is spindle rotationally arranged in the second matrix（Housing 20）On, tape handler is further included second locking mechanism of second mounting base with respect to the locking of the second matrix（First band wheel seat is consolidated Determine part K1）.

In addition to the tape handler between any one motor B and any one belt wheel M has at least two centre-to-centre spacing tune Outside section mechanism can be tensioned jointly, also there are at least two center distance regulating mechanisms can be tensioned jointly between arbitrary entire belt wheel M. It, can be by turning specifically by taking the 5th belt wheel M5 to the 6th belt wheel M6 as an example with first pulley component G1 to the second pulley assemblies G2 Dynamic first band wheel seat J1 or the J2 completions tensioning of the second band wheel seat of rotation or rotation first band wheel seat J1 and the second belt wheel M2 are common Complete tensioning.It repeats no more.

Tape handler between any one pulley assemblies G of any one motor B settings adjacent thereto has centre Axis, jackshaft can drive other components such as wheel X to rotate, and topology layout is reasonable.With the first motor B1 to first pulley component G1, With by taking first pulley M1 to the 4th belt wheel M4 as an example, first pulley M1 is the first drive, and the 4th belt wheel M4 is the second transmission Wheel, jackshaft is provided between the first drive and the second drive（First wheel axle Y1）, third biography is socketed on central shaft Driving wheel（Second belt wheel M2）With the 4th drive（Third belt wheel M3）, being tensioned between third drive and the first drive has first Transmission belt（First belt Q1）, being tensioned between the 4th drive and the second drive has the second transmission belt（Second belt Q2）.The One wheel axle Y1 can drive the first wheel X1 and Second wheel X2 to rotate.

In present embodiment, the equal eccentric setting of motor shaft E and motor cabinet C of two motor M passes through center distance regulating mechanism The tensioning of belt is completed, it may occur to persons skilled in the art that, one in two motor M is completed using center distance regulating mechanism Tensioning, another completes to be tensioned using other strainers also may be used.

In present embodiment, the pulley shaft H of four pulley assemblies G and with the equal eccentric settings of wheel seat J is adjusted by centre-to-centre spacing Mechanism completes the tensioning of belt, it may occur to persons skilled in the art that, some in four pulley assemblies G are adjusted using centre-to-centre spacing Mechanism completes tensioning, other complete to be tensioned using other strainers also may be used.

The belt that those skilled in the art are further envisioned that on only one or multiple motor shafts uses center distance regulating mechanism Complete tensioning or only one or multiple pulley assemblies on belt by center distance regulating mechanism complete belt tensioning also can, All use is encompassed by with the same or similar scheme of present embodiment in protection scope of the present invention.

It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say For bright book as an entirety, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can With the other embodiment of understanding.

Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically Bright, they are not to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention Or change should all be included in the protection scope of the present invention.

Claims

1. a kind of robot grass trimmer, for automatically walk on the ground and mows, including driving the robot grass trimmer row Wheel, the transmission mechanism for driving the wheel rotation walked, the transmission mechanism include the first drive and the second transmission Wheel, wherein first drive is sequentially connected with second drive, first driving wheel tube is connected on the first central shaft On, first central shaft has the first central axis, it is characterised in that：The transmission mechanism further include surround and support it is described First mounting base of the first central shaft, first mounting base have the first mounting base axis, first central axis and institute State that the first mounting base axis is parallel and setting spaced apart, first mounting base are spindle rotationally arranged in the first matrix On, the transmission mechanism is further included first locking mechanism of first mounting base with respect to the locking of the first matrix.

2. robot grass trimmer according to claim 1, it is characterised in that：The transmission mechanism includes spaced apart The first drive and the second drive of setting, the transmission belt being stretched between first drive and second drive Or transmission chain.

3. robot grass trimmer according to claim 1, it is characterised in that：First drive includes first gear, Second drive includes second gear；The first gear and the direct or indirect engaged transmission of the second gear.

4. the robot grass trimmer according to claim 1 ~ 3 any one, it is characterised in that：First drive is by electricity Machine drives, and first central shaft is motor shaft.

5. the robot grass trimmer according to claim 1 ~ 3 any one, it is characterised in that：First central shaft passes through The both ends of first mounting base, the both ends of first central shaft are respectively sleeved on first drive.

6. the robot grass trimmer according to claim 1 ~ 3 any one, it is characterised in that：The second drive socket On the second central shaft, second central shaft has the second central axis, and the transmission mechanism, which further includes, surrounds and supports institute State the second mounting base of the second central shaft, second mounting base has the second mounting base axis, second central axis and The second mounting base axis is parallel and setting spaced apart, second mounting base are spindle rotationally arranged in the second matrix On, the transmission mechanism is further included second locking mechanism of second mounting base with respect to the locking of the second matrix.

7. robot grass trimmer according to claim 6, it is characterised in that：First drive and second transmission Jackshaft is provided between wheel, is socketed with third drive and the 4th drive on the central shaft, the third drive and Tensioning has the first transmission belt between first drive, between the 4th drive and second drive tensioning have the Two transmission belts.

8. the robot grass trimmer according to claim 1 ~ 3 any one, it is characterised in that：First mounting base is being hung down It is directly round in the section in the plane of the first mounting base axis.

9. the robot grass trimmer according to claim 1 ~ 3 any one, it is characterised in that：Based on first drive Driving wheel or driven wheel.

10. the robot grass trimmer according to claim 1 ~ 3 any one, it is characterised in that：The robot grass trimmer Including the first motor and the second motor, using the direction of travel of the robot grass trimmer as reference, the first motor passes through first set The forward and backward wheel in transmission mechanism driving left side rotates synchronously, and the second motor is forward and backward by the second sets of transmission mechanism driving right side Wheel rotates synchronously.