CN209676903U - Grass trimmer - Google Patents
Grass trimmer Download PDFInfo
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- CN209676903U CN209676903U CN201822131324.5U CN201822131324U CN209676903U CN 209676903 U CN209676903 U CN 209676903U CN 201822131324 U CN201822131324 U CN 201822131324U CN 209676903 U CN209676903 U CN 209676903U
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- planetary gear
- driving wheel
- driving
- grass trimmer
- rotation
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Abstract
The utility model relates to a kind of grass trimmers, comprising: rack；Cutting assembly is set to rack；Four driving assemblies are set to rack, are respectively provided with an output shaft；Four driving wheels, respectively with four output axis connections, driving wheel is circumferentially with multiple planetary gears, the angled setting in face where face where the direction of rotation of planetary gear and the direction of rotation of driving wheel, and the peripheral surface of planetary gear be at least partially exposed to it is outer with ground face contact；Controller is connect with four driving assemblies, independently controls four driving assemblies.Above-mentioned technical proposal at least has following technical effect that four driving assemblies of controller independent control respectively drive a driving wheel, in no-radius turning, due to being equipped with multiple planetary gears in the circumferential direction of each driving wheel, planetary gear can rotate on lawn, it reduces driving wheel and sliding phenomenon occurs in turning, and then the mill grass phenomenon between driving wheel and lawn is reduced, reduce the abrasion to lawn.
Description
Technical field
The utility model relates to power tools technology fields, more particularly to a kind of grass trimmer.
Background technique
Grass trimmer be it is a kind of for cutting the grass on a lawn, the electric tool of vegetation etc., generally include wheel group, rack and cutting system
System, can travel on lawn and cut meadow, greatly facilitate large area operation, reduce the heavy negative of operator
Load.
Traditional grass trimmer generallys use the mode of track drive, can be realized wide-angle climbing.But realizing 0 half
In the case that diameter is turned, it is prone to wear lawn.
Utility model content
Based on this, it is necessary to for traditional grass trimmer in the case where realizing no-radius turning, be prone to wear lawn
Problem provides a kind of grass trimmer.
A kind of grass trimmer, comprising: rack；Cutting assembly is set to the rack；Four driving assemblies are set to the machine
Frame is respectively provided with an output shaft；Four driving wheels, respectively with four output axis connections, the circumferential direction of the driving wheel set
There are multiple planetary gears, wherein face angulation where face where the direction of rotation of the planetary gear and the direction of rotation of the driving wheel
Degree setting, and the peripheral surface of the planetary gear be at least partially exposed to it is outer with ground face contact；Controller, with four institutes
Driving assembly connection is stated, four the driving component are independently controlled.
Above-mentioned technical proposal at least have following technical effect that in grass trimmer provided by the technical program set there are four drive
Dynamic component, respectively drive a driving wheel, be capable of providing biggish driving force, realizes the climbing and smaller angle of larger angle
Descending, robust motion is higher, is not susceptible to overturn phenomenon.Four driving assemblies of controller independent control respectively drive a drive
Driving wheel, in no-radius turning, due to being equipped with multiple planetary gears in the circumferential direction of each driving wheel, planetary gear can be on lawn
It rotates, reduces driving wheel and sliding phenomenon occurs in turning, and then reduce the mill grass phenomenon between driving wheel and lawn, subtract
Few abrasion to lawn.
Above-mentioned technical proposal is described further below.
The direction of rotation institute in face and the driving wheel where the direction of rotation of the planetary gear in one of the embodiments,
In the substantially vertical setting in face.
Four output shafts are arranged in pairs in one of the embodiments, the axis collinear of each pair of output shaft, and
The axis of two pairs of output shafts is parallel.
The circumferential direction of the driving wheel offers multiple first grooves, the planetary gear installation in one of the embodiments,
In in first groove.
There is between the bottom and the planetary gear of first groove gap in one of the embodiments, described the
Also there is gap between the side of one groove and the planetary gear.
The planetary gear is rotated around the shaft for being set up in first groove in one of the embodiments,.
The shaft is detachably secured to first groove in one of the embodiments,.
The second groove is equipped between adjacent first groove, in one of the embodiments, in order to the planetary gear
Installation and removal.
In one of the embodiments, the surface of the driving wheel and the surface of the planetary gear be enclosed with one layer it is soft
Glue.
The peripheral surface of the driving wheel and the peripheral surface of the planetary gear collectively constitute in one of the embodiments,
Circumferential surface.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention grass trimmer；
Fig. 2 is the partial enlargement diagram of A structure shown in Fig. 1；
Fig. 3 is the structural schematic diagram of an embodiment of the present invention one group of driving wheel and planetary gear；
Fig. 4 is the side view of driving wheel and planetary gear shown in Fig. 3.
Wherein: 100, grass trimmer 110, rack 120, the first driving assembly
122, the second driving assembly 124, third driving assembly 126, the 4th driving assembly
128, output shaft 130, the first driving wheel 132, the second driving wheel
134, third driving wheel 136, the 4th driving wheel 140, planetary gear
142, shaft 150, the first groove 160, the second groove
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.Many details are explained in the following description in order to abundant
Understand the utility model.But the utility model can be implemented with being much different from other way described herein, this field
Technical staff can do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific embodiment opened.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
In traditional grass trimmer, two wheel drive systems can only also reach when can not usually climb up slope greater than 25 degree, descending
To 15 degree or so of slope.By the way of track drive, then it can be realized wide-angle climbing.But have to turning certain
Radius limitation is prone to wear lawn in the case where realizing no-radius turning.
For this purpose, please referring to Fig. 1 and Fig. 2, an embodiment of the present invention provides a kind of grass trimmer 100, comprising: rack
110；Cutting assembly is set to rack 110；Four driving assemblies (120,122,124,126), be respectively the first driving assembly 120,
Second driving assembly 122, third driving assembly 124 and the 4th driving assembly 126, be set to rack 110, be respectively provided with one it is defeated
Shaft 128；Four driving wheels (130,132,134,136) are the first driving wheel 130, the second driving wheel 132, third drive respectively
Driving wheel 134 and the 4th driving wheel 136 are connect with four output shafts 128 respectively, the circumferential direction of driving wheel (130,132,134,136)
Equipped with multiple planetary gears 140, the rotation side in face and driving wheel (130,132,134,136) where the direction of rotation of planetary gear 140
To the angled setting in place face, and the peripheral surface of planetary gear 140 be at least partially exposed to it is outer with ground face contact；Control
Device is connect with four driving assemblies (120,122,124,126), independently control four driving assemblies (120,122,124,
126).In the present embodiment, grass trimmer 100 is intelligent grass-removing.
It should be noted that " the no-radius turning " that is previously mentioned in embodiments herein refers to 100 original place of grass trimmer
360 degree rotation." face where direction of rotation " refers to that arc-shaped direction of rotation is formed by plane.
In the present embodiment, the lower section of rack 110 is equipped with chassis, and cutting assembly is set to tray bottom.Cutting assembly includes
Cutter chuck holder adapted, cutter shaft, bearing and cutter etc., to complete a variety of mowing modes.Driving assembly (120,122,124,126) includes motor
With deceleration mechanism, output shaft 128 of the motor after the deceleration of deceleration mechanism is the wheel shaft of driving wheel.Specifically, rack 110 includes
Front beam and rear cross beam, the both ends of front beam are respectively equipped with two driving assemblies, are that the first driving assembly 120, second drives respectively
Dynamic component 122, it is third driving assembly 124, the 4th driving assembly respectively that the both ends of rear cross beam, which are respectively equipped with two driving assemblies,
126.Each driving assembly (120,122,124,126) all has an output shaft 128, correspondingly, the first driving assembly 120
Output shaft 128 be fixed with the first driving wheel 130, the output shaft 128 of the second driving assembly 122 is fixed with the second driving wheel 132,
The output shaft 128 of third driving assembly 124 is fixed with third driving wheel 134, and the output shaft 128 of the 4th driving assembly 126 is fixed
There is the 4th driving wheel 136.Four driving assemblies (120,122,124,126) connect with controller respectively, are distinguished by controller only
Vertical control, to control the velocity magnitude and driving direction of four driving wheels (130,132,134,136).Controller is set to rack
Outside 110 inside or rack 110, multiple programs instruction can be integrated, with control the starting and stopping of grass trimmer 100, advance and
Retrogressing, velocity magnitude and driving direction etc..
With reference to Fig. 3 and Fig. 4, multiple planetary gears 140 are equipped in the circumferential direction of each driving wheel (130,132,134,136),
Specific quantity is selected according to the radius of driving wheel, for example, six to eight or so.In the present embodiment, each driving wheel (130,
132, six planetary gears 140 134,136) are equipped in circumferential direction.When driving wheel (130,132,134,136) turning, due to
Different traveling differential realizes no-radius turning each other, planetary gear 140 at least partly with ground face contact, thus and lawn
Between also relatively rotate.As shown in Figure 1, circumference B indicates driving wheel (130,132,134,136) around 100 center of grass trimmer
The motion profile for the core wheel being rotated by 360 °, this concept turned for the no-radius being previously mentioned in embodiments herein, such as Fig. 3
And Fig. 4, due to where the direction of rotation a of face and driving wheel (130,132,134,136) where the direction of rotation b of planetary gear 140
The angled setting in face, therefore, circumferentially the driving direction of the tangential direction of B being capable of rotation by planetary gear 140 and driving wheel
The rotation of (130,132,134,136) is realized jointly, reduces the slippage of driving wheel (130,132,134,136).If driving
Wheel (130,132,134,136) rotates clockwise, and the first driving wheel 130 and third driving wheel 134 are then rotated towards lower right, the
Two driving wheels 132 and the 4th driving wheel 136 are then rotated towards upper left.With face and first where the direction of rotation of planetary gear 140
For face where the direction of rotation of driving wheel 130 is vertically arranged, it is illustrated, it is specific as shown in Fig. 2, when the first driving wheel 130
When no-radius is turned, circumferentially the tangential direction of B is driving direction N of first driving wheel 130 at the moment, according to power Xue Zhi
Know, mutually orthogonal direction X and direction Y can be decomposed into, direction X is the direction of rotation of the first driving wheel 130, and direction Y is row
The direction of rotation of star-wheel 140.When being not provided with planetary gear 140, direction Y is then the glide direction of the first driving wheel 130, with grass
The careless phenomenon of mill is easy to produce between level ground.In the present embodiment, due to being provided with planetary gear 140, direction Y is by the first driving wheel 130
Glide direction becomes the direction of rotation of planetary gear 140, becomes rolling by sliding, greatly reduce the first driving wheel 130 with
Mill grass phenomenon between lawn.Similarly, other three driving wheels are also such.In addition, grass trimmer 100 is set, there are four driving assemblies
(120,122,124,126) and four driving wheels (130,132,134,136), compared to two wheel drive systems, substantially increase
Driving force, meanwhile, it also can be realized the climbing of larger angle and the descending of smaller angle, robust motion is higher, is not susceptible to
Overturn phenomenon.
Above-mentioned technical proposal, which at least has following technical effect that, is equipped with four in grass trimmer 100 provided by the technical program
A driving assembly (120,122,124,126), respectively drives a driving wheel (130,132,134,136), is capable of providing larger
Driving force, realize the climbing of larger angle and the descending of smaller angle, robust motion is higher, be not susceptible to overturn phenomenon.
Four driving assemblies of controller independent control (120,122,124,126) respectively drive a driving wheel (130,132,134,
136), when no-radius is turned, due to being equipped with multiple planetary gears in the circumferential direction of each driving wheel (130,132,134,136)
140, planetary gear 140 can rotate on lawn, reduce driving wheel (130,132,134,136) and slide in turning
Phenomenon, and then the mill grass phenomenon between driving wheel (130,132,134,136) and lawn is reduced, reduce the abrasion to lawn.
Above-mentioned technical proposal is described further below.
With reference to Fig. 3 and Fig. 4, in some embodiments, face where the direction of rotation b of planetary gear 140 and driving wheel (130,
132,134,136) the direction of rotation a place substantially vertical setting in face.In the present embodiment, vertical restriction be not it is absolute,
Allow that there are deviations.So set, can make the rotation of planetary gear 140 it is substantially all be used to offset driving wheel (130,132,
134, sliding 136) is realized planetary gear 140 between lawn to a greater extent and is rolled.With reference to Fig. 1, Fig. 3 and Fig. 4, with
For two driving wheels 132, it can be understood as, the axis Z1 of planetary gear 140 is substantially vertical with the axis Z2 of the second driving wheel 132,
The axis Z1 of planetary gear 140 is substantially vertical with the radial line Z3 for dividing the planetary gear 140 equally of the second driving wheel 132.
In some embodiments, four output shafts 128 are arranged in pairs, the axis collinear of each pair of output shaft 128, and two pairs defeated
The axis of shaft 128 is parallel.For compact-sized neat consideration, correspondence is arranged in pairs four output shafts 128 two-by-two, each pair of output
Two axis collinears of axis 128, it is parallel to each other between the axis of two pairs of output shafts 128.According to the above records, as shown in Figure 1,
One driving assembly 120 and the second driving assembly 122 are symmetrical arranged, and third driving assembly 124 is symmetrically set with the 4th driving assembly 126
It sets, meanwhile, the first driving assembly 120 is also symmetrical arranged with third driving assembly 124, the second driving assembly 122 and the 4th driving
Component 126 is also symmetrical arranged.In addition, output shaft 128 is also arranged with axis close to the position of driving wheel (130,132,134,136)
It holds, to mitigate shaking of the output shaft 128 in rotary course.
With reference to Fig. 3 and Fig. 4, in some embodiments, the circumferential direction of driving wheel (130,132,134,136) offers multiple
One groove 150, planetary gear 140 are installed in the first groove 150.Along driving wheel (130,132,134,136) circumferential direction equably
Multiple first grooves 150 are offered, planetary gear 140 is installed in the first groove 150, and guarantees that planetary gear 140 when rotated can
It is enough to be in contact with lawn, and non-idling, so can planetary gear 140 determines according to actual conditions radius size.The present embodiment
In, the circumferential direction of driving wheel (130,132,134,136) is equably opened up there are six the first groove 150, and there are six planetary gears for installation
140。
Further, there is gap between the bottom and planetary gear 140 of the first groove 150.Exist to reduce planetary gear 140
Friction in rotary course between the first groove 150 has gap, to the greatest extent between the bottom and planetary gear 140 of the first groove 150
The Mechanical Contact between planetary gear 140 and the first groove 150 is possibly reduced, while also mitigating the first groove 150 and planet
The abrasion of wheel 140.
Further, also there is gap between the side and planetary gear 140 of the first groove 150.In order to further subtract
Few planetary gear 140 in the friction in rotary course between the first groove 150, the side of the first groove 150 and planetary gear 140 it
Between also there is gap, the Mechanical Contact being reduced as far as between planetary gear 140 and the first groove 150, while also mitigating the
The abrasion of one groove 150 and planetary gear 140.
Further, planetary gear 140 is rotated around the shaft 142 for being set up in the first groove 150.Shaft 142 is recessed through first
The side wall of slot 150, is set up in the first groove 150, and planetary gear 140 around the shaft 142 can relative rotation.Planetary gear 140 and shaft 142
Between can be clearance fit, the spinning movement of planetary gear 140 when realizing turning, and planetary gear when being reduced as far as non-turn
140 spinning movement.
Further, shaft 142 is detachably secured to the first groove 150.Due to shaft 142 and planetary gear 140 it
Between the case where capable of relatively rotating, wear it is more, therefore, be set as the shaft 142 to be detachably secured to first recessed
Slot 150 then regularly can be safeguarded and be replaced according to service life, or when breaking down, rapidly be carried out in time
Replacement and maintenance.Shaft 142 can be similar to large-sized bolt, pin shaft and pin etc, be locked using nut, gasket etc.
Tightly or aperture is offered at the both ends of shaft 142, pass through aperture using rigidity part, the part rigidity part that will stretch out aperture is rolled over
It is curved, to achieve the purpose that locking.The present embodiment does not limit the structure feature of shaft 142 and its fixing piece, is only used to illustrate.
In wherein some embodiments, the second groove 160 is equipped between adjacent first groove 150, in order to planetary gear 140
Installation and removal.The second groove 160 is equipped between adjacent first groove 150, shaft 142 and fixing piece etc. are positioned partially at
In second groove 160, the open state of the second groove 160 is kept, when can be damaged convenient for the abrasion of planetary gear 140, shaft 142,
It is rapidly replaced and is repaired in time.
In some embodiments, the surface of driving wheel (130,132,134,136) and the surface of planetary gear 140 are enclosed with
One layer of flexible glue.In order to improve the cushioning ability and shake-proof ability of grass trimmer 100, in driving wheel (130,132,134,136) and grass
Level ground contact surface, planetary gear 140 contacted with lawn surface package one layer of flexible glue, with increase driving wheel (130,132,134,
136) elastic contact force between lawn, between planetary gear 140 and lawn.Meanwhile in order to improve driving to a certain extent
Take turns the skid resistance between (130,132,134,136) and lawn and the skid resistance between planetary gear 140 and lawn, In
Multiple decorative patterns and groove gap are carved on flexible glue layer, to increase contact friction force.
Further, the peripheral surface of driving wheel (130,132,134,136) and the peripheral surface of planetary gear 140 can be total to
With composition circumferential surface, smooth linking is realized.In driving wheel (130,132,134,136) straight-line travelling, planetary gear 140 can be with
It regards itself component of driving wheel (130,132,134,136), driving wheel (130,132,134,136) normal rotation as, and goes
Star-wheel 140 is kept essentially stationary, and does not influence the straight-line travelling of driving wheel (130,132,134,136).
In some other embodiment, controller has integrated system, and integrated system includes a variety of mowing modes.Mowing mould
Formula may include high speed is mowed, middling speed is mowed and low speed is mowed etc..Meanwhile controller further includes the control journey for controlling driving assembly
Sequence, the control program are also desirably integrated into integrated system, including a variety of mowing paths, with realize grass trimmer 100 straight line and
It the movement such as turns, move forward and backward.
Further, rack 110 is equipped with start button and select button, to select corresponding mowing mode；Or it is logical
It crosses wireless signal to be controlled by cell phone application, to select corresponding mowing mode.In the present embodiment, operator can directly cut
Selection mowing mode and mowing path before careless machine 100 starts realize that automation is mowed.Alternatively, operator is by being bundled in hand
APP on machine by wireless signal transfer and it is received in a manner of control the movement of grass trimmer 100, realize that automation is mowed.
Above-mentioned technical proposal, which at least has following technical effect that, is equipped with four in grass trimmer 100 provided by the technical program
A driving assembly (120,122,124,126), respectively drives a driving wheel (130,132,134,136), is capable of providing larger
Driving force, realize the climbing of larger angle and the descending of smaller angle, robust motion is higher, be not susceptible to overturn phenomenon.
Four driving assemblies of controller independent control (120,122,124,126) respectively drive a driving wheel (130,132,134,
136), when no-radius is turned, due to being equipped with multiple planetary gears in the circumferential direction of each driving wheel (130,132,134,136)
140, planetary gear 140 can rotate on lawn, reduce driving wheel (130,132,134,136) and slide in turning
Phenomenon, and then the mill grass phenomenon between driving wheel (130,132,134,136) and lawn is reduced, reduce the abrasion to lawn.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of grass trimmer characterized by comprising
Rack；
Cutting assembly is set to the rack；
Four driving assemblies are set to the rack, are respectively provided with an output shaft；
Four driving wheels, respectively with four output axis connections, the driving wheel is circumferentially with multiple planetary gears, wherein
The angled setting in face where face where the direction of rotation of the planetary gear and the direction of rotation of the driving wheel, and the planet
The peripheral surface of wheel be at least partially exposed to it is outer with ground face contact；
Controller is connect with four the driving component, independently controls four the driving component.
2. grass trimmer according to claim 1, which is characterized in that face and the drive where the direction of rotation of the planetary gear
The substantially vertical setting in face where the direction of rotation of driving wheel.
3. grass trimmer according to claim 1, which is characterized in that four output shafts are arranged in pairs, each pair of described defeated
The axis collinear of shaft, and the axis of two pairs of output shafts is parallel.
4. grass trimmer according to claim 1, which is characterized in that it is recessed that the circumferential direction of the driving wheel offers multiple first
Slot, the planetary gear are installed in first groove.
5. grass trimmer according to claim 4, which is characterized in that between the bottom and the planetary gear of first groove
With gap, also there is gap between the side and the planetary gear of first groove.
6. grass trimmer according to claim 4, which is characterized in that the planetary gear is around turn for being set up in first groove
Axis rotation.
7. grass trimmer according to claim 6, which is characterized in that it is recessed that the shaft is detachably secured to described first
Slot.
8. grass trimmer according to claim 4, which is characterized in that it is recessed to offer second between adjacent first groove
Slot, in order to the installation and removal of the planetary gear.
9. grass trimmer according to claim 1, which is characterized in that the surface on the surface of the driving wheel and the planetary gear
It is enclosed with one layer of flexible glue.
10. grass trimmer according to claim 1, which is characterized in that the peripheral surface of the driving wheel and the planetary gear
Peripheral surface collectively constitute circumferential surface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822131324.5U CN209676903U (en) | 2018-12-18 | 2018-12-18 | Grass trimmer |
| PCT/CN2019/116206 WO2020125258A1 (en) | 2018-12-18 | 2019-11-07 | Lawn mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822131324.5U CN209676903U (en) | 2018-12-18 | 2018-12-18 | Grass trimmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209676903U true CN209676903U (en) | 2019-11-26 |
Family
ID=68596176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822131324.5U Active CN209676903U (en) | 2018-12-18 | 2018-12-18 | Grass trimmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209676903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535113A (en) * | 2020-04-30 | 2020-08-14 | 北京天仁科技发展有限公司 | Traveling mechanism of grassland filament planting machine and working method |
-
2018
- 2018-12-18 CN CN201822131324.5U patent/CN209676903U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535113A (en) * | 2020-04-30 | 2020-08-14 | 北京天仁科技发展有限公司 | Traveling mechanism of grassland filament planting machine and working method |
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