CN108760620A - A kind of grass density degree detection device and grass trimmer - Google Patents
A kind of grass density degree detection device and grass trimmer Download PDFInfo
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- CN108760620A CN108760620A CN201810679434.7A CN201810679434A CN108760620A CN 108760620 A CN108760620 A CN 108760620A CN 201810679434 A CN201810679434 A CN 201810679434A CN 108760620 A CN108760620 A CN 108760620A
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- idler wheel
- grass
- detection device
- density degree
- degree detection
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- 244000025254 Cannabis sativa Species 0.000 title claims abstract description 90
- 238000001514 detection method Methods 0.000 title claims abstract description 63
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000013016 damping Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical group N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000012463 white pigment Substances 0.000 description 2
- 241000222712 Kinetoplastida Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/006—Control or measuring arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
Abstract
A kind of careless density degree detection device of present invention offer and grass trimmer,Careless density degree detection device is mounted on moving body,Include the idler wheel and velocity measurement mechanisms being rotatablely connected with moving body,The axis of idler wheel is arranged perpendicular to the moving direction of moving body,The periphery of idler wheel is not contacted with ground but is contacted with grass,Because idler wheel is moved together with moving body,Grass generates frictional force to idler wheel after idler wheel is contacted with grass,The real-time velocity of rotation that velocity measurement mechanisms measure idler wheel is that may know that the frictional force size that grass acts on idler wheel judges careless density degree in turn,The judgement of careless density degree is calculated by program to be judged,Without manpower intervention,Reduce the error of detection,It measures more accurate,The degree of automation of careless density degree detection device is promoted simultaneously,Reduce the workload of staff,And working strategies can be adjusted according to the density degree of the grass measured,The working strategies of smaller working strength may be implemented,Reduce energy consumption.
Description
Technical field
The present invention relates to mower art field more particularly to a kind of careless density degree detection device and grass trimmers.
Background technology
Recent years, with the improvement of people's environmental awareness, greenery area increasingly increases in city, to lawn daily maintenance
Workload it is also increasingly heavy, for improve grass trimmer working efficiency to reduce the workload for safeguarding lawn, can be according to meadow
Density degree adjust the working strategies of grass trimmer in real time.Existing grass density degree detection is all by way of optical identification
It carries out, since there are larger errors for optical identification, while cost is also higher, is not popularized widely.
Invention content
Accurately careless density degree detection device and grass trimmer are measured the purpose of the present invention is to provide a kind of.
In order to achieve the above object, the present invention adopts the following technical scheme that：A kind of grass density degree detection device, installation
On moving body, careless density degree detection device includes idler wheel, and idler wheel is rotatablely connected with moving body, and the axis of idler wheel is perpendicular to shifting
The moving direction of kinetoplast is arranged, and the periphery of idler wheel is not contacted with ground but contacted with grass, and careless density degree detection device is also wrapped
Include the velocity measurement mechanisms of the detection real-time velocity of rotation of idler wheel.
Further, the velocity measurement mechanisms include measuring cell and sensing element, and measuring cell is mounted on moving body, sense
It answers element to be equipped with multiple and is uniformly mounted on the circumferencial direction of idler wheel.
Further, the measuring cell is Hall element, and sensing element is magnet.
Further, multiple protrusions are evenly arranged on the circumferencial direction of the idler wheel, multiple sensing elements are installed respectively
In multiple protrusions.
Further, the idler wheel includes left cover and right cover, and protrusion includes left half protrusion being set in left cover and is set to the right side
Right half protrusion covered, left half protrusion are equipped with the first mounting groove, and right half protrusion is equipped with the second mounting groove, the first mounting groove with
Second mounting groove cooperatively forms the installation cavity for installing sensing element.
Further, the idler wheel is equipped with multiple and axis and overlaps, and is rotated independently of each other between multiple idler wheels.
Further, mandrel is installed, idler wheel is equipped with mounting hole, and idler wheel passes through mounting hole and mandrel on the moving body
Rotation connection.
Further, the idler wheel is equipped with the damping piece that limitation idler wheel is freely rotated.
Further, the damping piece is friction plate.
The invention also discloses a kind of grass trimmer, including grass trimmer ontology, mowing blade and careless density degree detection device,
Mowing blade and careless density degree detection device are installed on grass trimmer ontology, and careless density degree detection device is in grass trimmer
It is located at the front of mowing blade in the direction of motion, grass trimmer ontology is moving body in any of the above-described technical solution, careless density degree
Detection device is the careless density degree detection device in any of the above-described technical solution.
After adopting the above technical scheme, the invention has the advantages that：
1, by the way that idler wheel is arranged, idler wheel is rotatablely connected with moving body, and because idler wheel is moved together with moving body, idler wheel connects with grass
Grass generates frictional force to idler wheel after touch, and the real-time velocity of rotation by measuring idler wheel is that may know that grass acts on the friction on idler wheel
Power size judges the density degree of grass in turn, and the real-time velocity of rotation of idler wheel illustrates that grass is more intensive sooner, otherwise the reality of idler wheel
When velocity of rotation more letting alone that bright grass is more sparse, the judgement of careless density degree is calculated by program to be judged, is not necessarily to manpower intervention, is reduced
The error of detection, measurement is more accurate, while promoting the degree of automation of careless density degree detection device, reduces staff's
Workload, and working strategies can be adjusted according to the density degree of the grass measured, the work plan of smaller working strength may be implemented
Slightly, energy consumption is reduced.
2, by the way that measuring cell and sensing element is arranged, the position that sensing element is measured by measuring cell obtains idler wheel
Real-time velocity of rotation is to judge the density degree of grass.
3, it is Hall element by the way that measuring cell is arranged, sensing element is magnet, passes through Hall element induced field intensity
The position of sensing element is obtained, it is each by measuring because sensing element is equipped with multiple and is uniformly mounted on the circumferencial direction of idler wheel
The real time position of a sensing element, and then calculate the real-time velocity of rotation of idler wheel.
4, by the way that multiple protrusions are arranged, increase the contact area of idler wheel and grass, and then increase the friction between grass and idler wheel
Power ensures that idler wheel can rotate under the action of frictional force；By the way that multiple sensing elements are separately mounted in multiple protrusions, make
The closer measuring cell of sensing element is obtained, enhances induction, promotes the reliability of detection.
5, by the way that left cover and right cover is arranged, protrusion includes that the left partly protrusion being set in left cover and the right side in right cover are semi-convex
It rises, left half protrusion is equipped with the first mounting groove, and right half protrusion is equipped with the second mounting groove, and sensing element is mounted on the first mounting groove
In the installation cavity cooperatively formed with the second mounting groove so that sensing element is not exposed, plays the role of protecting sensing element, be promoted
The service life of careless density degree detection device.
6, by the way that multiple idler wheels are arranged, rotated independently of each other between multiple idler wheels, by measure the number of rollers rolled and
The real-time velocity of rotation of each idler wheel can detect the density degree of large area blade of grass and then more accurately judge dredging for blade of grass
Close degree.
7, by the way that mandrel is arranged, idler wheel is connect by mounting hole with central axis so that the rotation phase between multiple idler wheels
It is mutually independent.
8, by the way that damping piece is arranged, being freely rotated for idler wheel is limited, avoids idler wheel in no grass also because inertia turns always
It is dynamic that measurement result is interfered.
9, the present invention also provides a kind of grass trimmer, grass trimmer includes grass trimmer ontology, mowing blade and careless density degree
Detection device, grass trimmer ontology are the moving body in above-mentioned technical proposal, and careless density degree detection device is above-mentioned technical proposal
In careless density degree detection device work as grass trimmer by being arranged careless density degree detection device in the front of mowing blade
When ontology travels forward, grass first passes through careless density degree detection device using mowing blade, by the density for detecting grass automatically
Degree adjusts working strategies in real time, realizes the working strategies of smaller working strength, designs complete machine power according to testing result, no
It needs to design big load more safe clearance, reduces energy consumption；Meanwhile careless density degree detection is obtained by velocity measurement mechanisms measurement
Accurately numerical value is not necessarily to artificial judgment, improves the accuracy of judgement, and reduce manpower intervention, the degree of automation higher subtracts
The workload of staff is lacked.
Description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the structural schematic diagram of careless density degree detection device described in the embodiment of the present invention one.
Fig. 2 is the structural schematic diagram of idler wheel in careless density degree detection device described in the embodiment of the present invention one.
Fig. 3 is the structural schematic diagram of grass trimmer described in the embodiment of the present invention one.
Marked the names of the parts are as follows in figure：
1, idler wheel；11, raised；111, left half protrusion；112, right half protrusion；12, left cover；121, the first mounting groove；122,
Jack；13, right cover；14, mounting hole；2, moving body；3, Hall element；4, magnet；5, mandrel；6, grass trimmer ontology.
Specific implementation mode
Embodiment one：
As depicted in figs. 1 and 2, the present invention provides a kind of careless density degree detection device, is mounted on moving body 2, grass
Density degree detection device includes idler wheel 1, and idler wheel 1 is rotatablely connected with moving body 2, the shifting of the axis of idler wheel 1 perpendicular to moving body 2
Dynamic direction setting, direction shown in arrow is the moving direction of moving body 2 in Fig. 1, the periphery of idler wheel 1 do not contacted with ground but with
Grass contact, because idler wheel 1 is moved together with moving body 2, grass generates frictional force, careless density degree to idler wheel 1 after idler wheel 1 is contacted with grass
Detection device further includes detecting the velocity measurement mechanisms of 1 real-time velocity of rotation of idler wheel, by the real-time velocity of rotation for measuring idler wheel 1
Know the frictional force size that grass acts on idler wheel 1 and then judges that the density degree of grass, the real-time velocity of rotation of idler wheel 1 are faster
Illustrate that grass is more intensive, otherwise the real-time velocity of rotation of idler wheel 1, more letting alone that bright grass is more sparse, the judgement of careless density degree passes through program
It calculates and judges, be not necessarily to artificial judgment, reduce the error of judgement, measurement is more accurate, while because being not necessarily to manpower intervention, promoting grass and dredging
The degree of automation of close degree detection device reduces the workload of staff, and can be according to the density degree of the grass measured
Working strategies are adjusted, the working strategies of smaller working strength may be implemented, reduce energy consumption.
In the present embodiment, velocity measurement mechanisms include measuring cell and sensing element, and measuring cell is mounted on moving body 2, sense
It answers element to be equipped with multiple and is uniformly mounted on the circumferencial direction of idler wheel 1, the position that sensing element is measured by measuring cell obtains
To the real-time velocity of rotation of idler wheel 1 to judge the density degree of grass.
Specifically, measuring cell is Hall element 3, sensing element is magnet 4, passes through 3 induced field intensity of Hall element
The position of sensing element is obtained, it is each by measuring because sensing element is equipped with multiple and is uniformly mounted on the circumferencial direction of idler wheel 1
The real time position of a sensing element, and then calculate the real-time velocity of rotation of idler wheel 1.
Multiple raised 11 are evenly arranged on the circumferencial direction of idler wheel 1, multiple magnet 4 are separately mounted to multiple raised 11
It is interior, increase the contact area of idler wheel 1 and grass, and then increase the frictional force between grass and idler wheel 1, ensures under the action of frictional force
Idler wheel 1 can rotate；By the way that multiple magnet 4 are separately mounted in multiple raised 11 so that 4 closer Hall element 3 of magnet,
Enhance magnetic induction intensity, promotes the reliability of detection.In the present embodiment, protrusion 11 and magnet 4 are equipped with 20, both adjacent magnets
It is spaced 18 ° between 4, the real-time velocity of rotation of idler wheel 1 is calculated by the magnetic field intensity measured between magnet 4 and Hall element 3.
Idler wheel 1 includes left cover 12 and right cover 13, and protrusion 11 includes that left half protrusion 111 being arranged in left cover 12 and setting exist
Right half protrusion 112 in right cover 13, left half protrusion 111 are equipped with the first mounting groove 121, and right half protrusion 112 is equipped with the second peace
Tankage, the first mounting groove 121 and the second mounting groove cooperatively form the installation cavity for installing magnet 4 so that magnet is not exposed, rises
To the effect of protection magnet, the service life of careless density degree detection device is promoted.Left cover 12 is equipped with jack 122, right cover 13
It is equipped with bolt, left cover 12 and right cover 13 and connection is realized by jack 122 and bolt cooperation so that the peace of left cover 12 and right cover 13
Load connects more convenient.Bolt and jack 122 are equipped with three pairs, and three pairs of bolts and jack 122 are uniformly spaced along the circumferential direction of idler wheel 1
Setting so that position is fixed in a circumferential direction for left cover 12 and right cover 13, will not be relatively rotated.
Idler wheel 1 is equipped with multiple and axis and overlaps, and the quantity of Hall element 3 is equal to the quantity of idler wheel 1 and is arranged in a one-to-one correspondence,
It is rotated independently of each other between multiple idler wheels 1, it, can by measuring the real-time velocity of rotation of 1 quantity of idler wheel and each idler wheel 1 that roll
To detect the density degree of large area blade of grass and then more accurately judge the density degree of blade of grass.
Mandrel 5 is installed, idler wheel 1 is equipped with mounting hole 14, and idler wheel 1 is rotated by mounting hole 14 and mandrel 5 on moving body 2
Connection so that the rotation between multiple idler wheels 1 is mutual indepedent.
Idler wheel 1 is equipped with the damping piece that limitation idler wheel 1 is freely rotated, and being freely rotated for damping piece limitation idler wheel 1 avoids rolling
Wheel 1 also interferes measurement result because inertia rotates always in no grass.Specifically, damping piece is friction plate, friction plate
Between idler wheel and idler wheel, play the role of limitation to the rotation of idler wheel 1, promotes careless density degree detection device detection
Accuracy, certain damping piece, which can also be other, can generate idler wheel 1 in the device of friction.
As shown in figure 3, the invention also discloses a kind of grass trimmer, grass trimmer includes grass trimmer ontology 6, mowing blade and grass
Density degree detection device, mowing blade and careless density degree detection device are installed on grass trimmer ontology 6, careless density degree
Detection device is the fortune of grass trimmer positioned at direction shown in arrow in the front of mowing blade, Fig. 3 in the direction of motion of grass trimmer
Dynamic direction, grass trimmer ontology 6 are the moving body in any of the above-described technical solution, and careless density degree detection device is any of the above-described skill
Careless density degree detection device in art scheme, by being arranged careless density degree detection device in the front of mowing blade, when
When grass trimmer ontology 6 travels forward, grass first passes through careless density degree detection device using mowing blade, by detecting grass automatically
Density degree, adjust working strategies in real time, realize the working strategies of smaller working strength, design complete machine work(according to testing result
Rate need not design big load more safe clearance, reduce energy consumption；Meanwhile careless density detection is measured by velocity measurement mechanisms
To accurately numerical value, it is not necessarily to artificial judgment, improves the accuracy of judgement, and reduce manpower intervention, the degree of automation higher,
Reduce the workload of staff.
It should be understood that protrusion and magnet can also be provided with 10, and 12,14,16,18,22,24,
26 etc..
It should be understood that bolt can also be arranged in left cover, jack is arranged in right cover.
It should be understood that bolt and jack can also be provided with 2 pairs, 4 pairs, 5 pairs etc..
It should be understood that left cover and right cover can be connected by screw.
It should be understood that mandrel can also be arranged at the both ends of idler wheel, idler wheel is rotatablely connected by mandrel and moving body.
It should be understood that careless density degree detection device can be used for detecting merely instrument or the fertilising of careless density degree
The instruments such as machine.
Embodiment two：
The present embodiment and the main distinction of embodiment one are that velocity measurement mechanisms include photoelectric sensor.
Velocity measurement mechanisms include photoelectric sensor, and the circumferential surface interval of idler wheel is coated with white pigment and black pigment.In this way
Setting is advantageous in that white pigment and black pigment make reflected light and non-reflected light be alternately present, and photoelectric sensor is corresponding
Ground interval receives the reflection signal of light, and exports intermittent electric signal, and the real-time velocity of rotation of idler wheel is obtained i.e. according to electric signal
It may know that the frictional force size that grass acts on idler wheel and then judge the density degree of grass.Because of photoelectric sensor measurement accuracy
Soon, obtained result is more accurate for high, reaction.
It should be understood that polylith reflecting plate can also be uniformly arranged in the circumferential surface of idler wheel, photoelectric sensor interval connects
Receive the reflection signal that reflecting plate is sent out.
In addition to above preferred embodiment, the present invention also has other embodiments, those skilled in the art can be according to this
Invention makes various changes and modifications, and without departing from the spirit of the present invention, should all belong to appended claims of the present invention and determine
The range of justice.
Claims (10)
1. a kind of grass density degree detection device, is mounted on moving body, which is characterized in that the grass density degree detection dress
It sets including idler wheel, idler wheel is rotatablely connected with moving body, and the axis of idler wheel is arranged perpendicular to the moving direction of moving body, the circle of idler wheel
Circumferential surface is not contacted with ground but is contacted with grass, and careless density degree detection device further includes detecting testing the speed for the real-time velocity of rotation of idler wheel
Mechanism.
2. grass density degree detection device according to claim 1, which is characterized in that the velocity measurement mechanisms include measuring member
Part and sensing element, measuring cell are mounted on moving body, and sensing element is equipped with circumference side that is multiple and being uniformly mounted on idler wheel
Upwards.
3. grass density degree detection device according to claim 2, which is characterized in that the measuring cell is Hall member
Part, sensing element are magnet.
4. grass density degree detection device according to claim 2, which is characterized in that on the circumferencial direction of the idler wheel
Even to be provided with multiple protrusions, multiple sensing elements are separately mounted in multiple protrusions.
5. grass density degree detection device according to claim 4, which is characterized in that the idler wheel includes left cover and the right side
Lid, protrusion include left half protrusion being set in left cover and right half protrusion in right cover, and left half protrusion is equipped with the first installation
Slot, right half protrusion are equipped with the second mounting groove, and the first mounting groove and the second mounting groove are cooperatively formed for installing sensing element
Installation cavity.
6. grass density degree detection device according to claim 1, which is characterized in that the idler wheel is equipped with multiple and axis
It overlaps, is rotated independently of each other between multiple idler wheels.
7. grass density degree detection device according to claim 1, which is characterized in that installed intentionally on the moving body
Axis, idler wheel are equipped with mounting hole, and idler wheel is connect by mounting hole with central axis.
8. grass density degree detection device according to claim 1, which is characterized in that the idler wheel is equipped with limitation idler wheel
The damping piece being freely rotated.
9. grass density degree detection device according to claim 8, which is characterized in that the damping piece is friction plate.
10. a kind of grass trimmer, including grass trimmer ontology, mowing blade and careless density degree detection device, mowing blade and grass are dredged
Close degree detection device is installed on grass trimmer ontology, and careless density degree detection device is located in the direction of motion of grass trimmer
The front of mowing blade, which is characterized in that the grass trimmer ontology is the moving body described in claim 1 to 9 any one, grass
Density degree detection device is the careless density degree detection device described in claim 1 to 9 any one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810679434.7A CN108760620A (en) | 2018-06-27 | 2018-06-27 | A kind of grass density degree detection device and grass trimmer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810679434.7A CN108760620A (en) | 2018-06-27 | 2018-06-27 | A kind of grass density degree detection device and grass trimmer |
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| CN201810679434.7A Pending CN108760620A (en) | 2018-06-27 | 2018-06-27 | A kind of grass density degree detection device and grass trimmer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109673264A (en) * | 2018-12-27 | 2019-04-26 | 王雪芬 | Grass trimmer gear adjustment mechanism |
| CN112293037A (en) * | 2020-09-28 | 2021-02-02 | 深圳拓邦股份有限公司 | Method for detecting lawn growth state by mowing robot and mowing robot |
| CN114527063A (en) * | 2022-02-14 | 2022-05-24 | 江苏欣鑫纺织科技有限公司 | Fabric desizing control system for intelligent spinning |
| US20220185317A1 (en) * | 2019-04-17 | 2022-06-16 | The Toro Company | Autonomous machine navigation and charging |
| CN115250651A (en) * | 2022-08-19 | 2022-11-01 | 电子科技大学中山学院 | Active paddy field weeding device of weeding intensity self-adaptation |
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