CN106258115A - Differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism - Google Patents
Differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism Download PDFInfo
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- CN106258115A CN106258115A CN201610833213.1A CN201610833213A CN106258115A CN 106258115 A CN106258115 A CN 106258115A CN 201610833213 A CN201610833213 A CN 201610833213A CN 106258115 A CN106258115 A CN 106258115A
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- transplanting
- circular gear
- differential
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- 230000007246 mechanism Effects 0.000 title claims abstract description 50
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 40
- 235000009566 rice Nutrition 0.000 title claims abstract description 38
- 240000007594 Oryza sativa Species 0.000 title abstract description 4
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 241000209094 Oryza Species 0.000 claims description 36
- 239000007787 solid Substances 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 241001481833 Coryphaena hippurus Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000009418 agronomic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C11/00—Transplanting machines
- A01C11/003—Transplanting machines for aquatic plants; for planting underwater, e.g. rice
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C11/00—Transplanting machines
- A01C11/006—Other parts or details or planting machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/2854—Toothed gearings for conveying rotary motion with gears having orbital motion involving conical gears
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/30—Toothed gearings for conveying rotary motion with gears having orbital motion in which an orbital gear has an axis crossing the main axes of the gearing and has helical teeth or is a worm
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Transplanting Machines (AREA)
Abstract
The invention discloses differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism.When existing planet circular system pot seedling wide-and narrow-row transplanting mechanism exists seedling taking, transversal displacement is excessive, causes the problem that seedling taking is not accurate enough.The present invention includes transmission case, counter drive shaft gear, central shaft, central shaft gear, differential speed gears, upper transplanting arm and lower transplanting arm；Differential speed gears is Two-Degree-of-Freedom mechanism, uses the Knucle-gear of fixed drive ratio or use the non-circular gear of variable speed transmission in transmission case, uses non-circular gear and staggered helical gear gear combination in gear-box.The present invention transplants arm during rotating with gear-box also by the driving force of gear engagement rotation, realize differential to rotate, due to the variable speed drive characteristic of non-circular gear and the flexible gear ratio that obtains in differential speed gears, in conjunction with staggered helical gear space drive characteristic, while realizing complicated space " 8-shaped " transplanting track, ensure that the seedling taking section transplanting track does not has lateral shift, i.e. realize " directly pressing from both sides Seedling ".
Description
Technical field
The invention belongs to agricultural mechanical field, relate to high-speed rice pot seedling wide-and narrow-row transplanter, be specifically related to a kind of differential
Train accurate rice pot seedling wide-and narrow-row transplanting mechanism.
Background technology
At present, rice transplanter is numerous in variety, but either wide-and narrow-row rice transplanting still waits line-spacing rice transplanting, and transplanting mechanism is taken
Rice shoot be all blanket Seedling, easily hinder root.Seedling and the rice shoot that pot seedling wide-and narrow-row transplanting mechanism is taken is pot seedling, between alms bowl and alms bowl
There is not packing phenomenon, hindering root problem so not existing in seedling taking process, compare blanket Seedling rice transplanting and there is shorter turning green week
Phase, this is significant to improving rice yield.
Wide-and narrow-row rice plantation refers to that rice seedling plant line space carries out a wide narrow planting patterns, this plantation side
Formula utilizes the principles of increase yield of crop Edge advantages, by adjusting the line space of rice shoot, improves ventilation, transmittance between plant, alleviates
Disease (rice blast), thus reach the purpose of good quality and high output, cost-saving synergistic.
Wide-and narrow-row transplanting mechanism is to realize rice shoot wide-and narrow-row on the basis of not changing existing pot seedling transplanter seedling box structure
Do not wait the parts of line-spacing plantation.The patent application of Publication No. CN102640604A discloses a kind of high-speed transplanter non-circular gear
Wide-and narrow-row transplanting mechanism, although refer to first order helical gear and second level non-circular gear drive in this patent application, it is achieved wide
Narrow row rice transplanting, its characteristics of motion meets the seedling taking of transplanting mechanism seedling pin, rice transplanting track and attitude to a certain extent, but its merit
" kidney-shaped " track or " dolphin shape " track of rice transplanter can be only limitted to, " 8-shaped " required for potted-seedling transplanting can not be formed
Spatial complex track, the mechanism that i.e. this patent is proposed is applicable only to rice transplanter, can not meet accurate rice pot seedling wide-and narrow-row and move
The requirement planted.
The patent of Publication No. CN103004346A discloses a kind of non-conical gear pot seedling wide-and narrow-row transplanting mechanism, and this is special
The seedling taking action of the combining form mechanism of the spur gear, helical gear and the non-circular gear that propose in profit is " folder soil ", i.e. in seedling taking
What in journey, intermediate plate clamped is the alms bowl soil of pot seedling；The track of transplanting of this mechanism is the space motion path with point mouth, is making at a high speed
Having bigger impact shock during industry, reliability is the highest.
The patent application of Application No. CN201310318352.7 discloses a kind of seven non-conical bevel gear planet circular system alms bowls
Width of seedling shoot narrow row transplanting mechanism, the core component of this mechanism is the planet circular system of seven non-conical bevel gears, and its seedling claw can realize
The space motion path of " 8-shaped ", but " 8-shaped " of this mechanism is transplanted track and is had bigger transversal displacement in seedling taking section,
I.e. seedling taking pawl action of lateral shift again while seedling taking, the left and right seedling sending action with seedling case interferes, and causes seedling taking not
Accurately, seedling taking success rate is relatively low.
Summary of the invention
It is an object of the invention to for the deficiencies in the prior art, it is provided that a kind of difference being applied to high-speed rice pot seedling transplanter
Speed train accurate rice pot seedling wide-and narrow-row transplanting mechanism.
In order to achieve the above object, the technical solution used in the present invention is:
The present invention includes transmission case, final drive shaft, drive bevel gear, driven wheel of differential, counter drive shaft, counter drive shaft tooth
Wheel, central shaft, central shaft gear, differential speed gears, upper transplanting arm and lower transplanting arm；Described counter drive shaft and central shaft all pass through
Bearing is bearing on transmission case；Drive bevel gear is fixed on final drive shaft, and driven wheel of differential and counter drive shaft gear are the most fixing
On counter drive shaft, central shaft gear is fixing on center shaft；Described driven wheel of differential engages with drive bevel gear, central shaft
Gear engages with counter drive shaft gear；Two differential speed gears are symmetricly set on the two ends of central shaft；The two ends of differential speed gears are arranged
Upper transplanting arm and lower transplanting arm.
Described differential speed gears include differential driving gear, differential driven gear, gear-box, center non-circular gear, upper
One middle non-circular gear, upper second middle non-circular gear, upper 3rd middle non-circular gear, upper middle helical gear, upper planet helical teeth
Wheel, lower first middle non-circular gear, lower second middle non-circular gear, lower 3rd middle non-circular gear, lower middle helical gear and under
Epicyclic singleplent helical gear, and be bearing in gear-box by bearing upper first jackshaft, upper second jackshaft, upper planet axle, under
First jackshaft, lower second jackshaft and lower planet axle；Described differential driving gear is fixed on counter drive shaft；Differential is driven
Gear empty set on center shaft, and engages with differential driving gear；The end that gear-box and central shaft stretch out outside transmission case is passed through
Pin is fixed；Described center non-circular gear is fixed with differential driven gear by dental inlay；Upper first middle non-circular gear and upper
Second middle non-circular gear is each attached on the first jackshaft；Upper first middle non-circular gear engages with center non-circular gear；
Upper 3rd middle non-circular gear and upper middle helical gear are each attached on the second jackshaft；Upper 3rd middle non-circular gear is with upper
Second middle non-circular gear engagement；Upper planet helical gear is fixed on upper planet axle, and engages with upper middle helical gear；Lower first
Middle non-circular gear and lower second middle non-circular gear are each attached to down on the first jackshaft；Lower first middle non-circular gear with in
Heart non-circular gear engages；Lower 3rd middle non-circular gear and lower middle helical gear are each attached to down on the second jackshaft；Lower 3rd
Middle non-circular gear engages with lower second middle non-circular gear；Lower planet helical gear is fixed on lower planet axle, and with lower centre
Helical gear engages.
The arm housing of transplanting of described upper transplanting arm is fixed with one end that upper planet axle stretches out outside gear-box, the shifting of lower transplanting arm
Plant arm housing to fix with one end that lower planet axle stretches out outside gear-box, and upper transplanting arm and lower transplanting arm are arranged on the same of gear-box
Side；The cam of upper transplanting arm and lower transplanting arm is all fixed with gear-box；Upper transplanting arm is identical with the structure of lower transplanting arm.
Described upper first jackshaft and lower first jackshaft are symmetricly set on central shaft both sides；In the middle of described upper second
Axle and lower second jackshaft are symmetricly set on central shaft both sides；Described upper planet axle and the centrally disposed axle of lower planet axial symmetry
Both sides, upper planet axle and central shaft, crossed axis angle between lower planet axle and central shaft are α；Upper middle helical gear, upper planet are oblique
Gear, lower middle helical gear and the helical gear helical angle of lower planet are β；α=2 β；The line-spacing requirement that β transplants according to wide-and narrow-row
Value.
Described upper first middle non-circular gear is identical with the geometric parameter of lower first middle non-circular gear, and upper second
Middle non-circular gear is identical with the geometric parameter of lower second middle non-circular gear, upper 3rd middle non-circular gear and the lower 3rd
The geometric parameter of middle non-circular gear is identical；Described upper middle helical gear, upper planet helical gear, lower middle helical gear and
The helical gear geometric parameter of lower planet is identical, be all modulus be 3, the number of teeth be the left-hand helical gear of 17.
The pitch curve of described center non-circular gear, upper second middle non-circular gear and lower second middle non-circular gear by
Cubic nonratio-nal B-spline curve matching forms, and by the shape controlling pitch curve to footpath of 12 data points.
Described counter drive shaft gear and central shaft gear are Knucle-gear, and gear ratio is 1, or are intermeshing non-
Knucle-gear；Described differential driving gear and differential driven gear are Knucle-gear, and gear ratio 1:2, or are intermeshing
Non-circular gear.
The seedling taking section transplanting track that the seedling taking intermediate plate cusp of upper transplanting arm or lower transplanting arm is formed is in the horizontal plane
It is projected as straight line section.
The invention has the beneficial effects as follows:
1, the present invention solves staggered gear-elliptic cone planetary gear train and staggered gear-non-circular gear transplanting mechanism
The problem being applicable only to rice transplanter, transplants track, the present invention compared to " kidney-shaped " and " dolphin shape " of these transplanting mechanisms
Transplanting mechanism can be formed complexity space " 8-shaped " track, with adapt to accurate rice pot seedling transplant particular/special requirement.Potted-seedling transplanting
It is the agronomic technique more advanced than transplanting, the most difficult in concrete enforcement, so the present invention is with simple gear mechanism
Structure achieves the irrealizable pot seedling wide-and narrow-row of transplanting mechanism institute of rice transplanter and transplants function, can increase production for the high-quality of Oryza sativa L. and enter
One step mechanization contributes.
2, the present invention is binary differential speed gears transplanting mechanism, with traditional single-degree-of-freedom planet circular system transplanting mechanism
Difference, differential speed gears transplanting mechanism is capable of the gear ratio of complexity, meanwhile, plane non-circular gear and the combination of staggered helical gear
Form so that the planet circular system of transplanting mechanism possesses space drive characteristic while having variable speed drive characteristic, makes transplanting
Mechanism is capable of the transplanting track of complexity；Simultaneously as the gear ratio of mechanical flexibility so that it is oblique that mechanism only need to be staggered installation of
Gear can be achieved with preferable space tracking, compared with the sphere non-circular gear of mechanism in publication number CN103004346A, this
Bright differential speed gears is face gear, it is easy to processes and makes cost be substantially reduced, being more suitably applied to production practices.
3, during the present invention solves Application No. CN201310318352.7, potted-seedling transplanting mechanism seedling taking field offset amount is excessive,
The problem that the seedling taking rate that causes is low, the arm of transplanting of seven non-circular gear transplanting mechanisms has the action of a lateral shift when seedling taking,
Interfering with moving left and right of seedling case, in actual production operation, seedling taking success rate is the lowest, and the box of tricks of the present invention
When seedling taking, track is straight line, does not has transversal displacement, it is possible to achieve precisely seedling taking, it is ensured that the success rate of seedling taking.
4, the present invention uses；By optimizing pitch curve parameter and the oblique gear spiral angle of non-circular gear, can obtain can be real
The potted-seedling transplanting mechanism of the existing wide narrow plantation of accurate rice pot seedling one；With patent No. CN201510005883.X and
The pot seedling wide-and narrow-row mechanism mentioned in CN201510213119.1 compares, this organization gear negligible amounts, structure simpler and
Compact, while reducing production cost, improve the reliability of mechanism.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of the present invention.
Fig. 2 is the assembling schematic diagram of each gear in the present invention.
Fig. 3 is the side side view of each gear engagement states in the present invention.
Fig. 4 is the opposite side side view of each gear engagement states in the present invention.
Fig. 5 is that lower middle helical gear and the lower planet helical gear of the present invention interlocks mesh schematic representation.
Fig. 6 is the transplanting arm sectional view of the present invention.
Fig. 7 is the transplanting arm top view of the present invention.
Fig. 8 is the center non-circular gear pitch curve figure of the present invention.
Fig. 9 is the upper second middle non-circular gear pitch curve figure of the present invention.
Figure 10 is the seedling taking process schematic of the present invention.
Figure 11 is the top view that the present invention realizes transplanting track.
The transplanting effect schematic diagram that wide-and narrow-row is transplanted is formed when Figure 12 is operation of the present invention.
In figure: 1, transmission case, 2, final drive shaft, 3, drive bevel gear, 4, driven wheel of differential, 5, counter drive shaft, 6, secondary pass
Moving axis gear, 7, central shaft, 8, central shaft gear, 9, differential driving gear, 10, differential driven gear, non-in the middle of 11, lower second
Knucle-gear, 12, lower 3rd middle non-circular gear, 13, lower planet axle, 14, lower planet helical gear, 15, gear-box, 16, lower transplanting
Arm, 17, lower second jackshaft, 18, lower middle helical gear, 19, lower first jackshaft, 20, lower first middle non-circular gear, 21,
Center non-circular gear, 22, upper first middle non-circular gear, 23, upper first jackshaft, 24, upper second middle non-circular gear, 25,
Upper middle helical gear, 26, upper second jackshaft, 27, upper transplanting arm, 28, upper planet helical gear, 29, upper planet axle, 30, upper
Three middle non-circular gears, 31, cam, 32, spring, 33, spring base, 34, shift fork, 35, pushing sprout pole, 36, transplant arm housing, 37,
Fixed block, 38, seedling taking intermediate plate, 39, U-shaped block, 40, seedling case, 41, alms bowl dish, 42, pot seedling, 43, transplant track, 44, ground, a, takes
Seedling inlet point, b, seedling taking point, c, push away seedling point.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism, including transmission case 1, master
Power transmission shaft 2, drive bevel gear 3, driven wheel of differential 4, counter drive shaft 5, counter drive shaft gear 6, central shaft 7, central shaft gear 8,
Differential speed gears, upper transplanting arm 27 and lower transplanting arm 16；Final drive shaft 2, counter drive shaft 5 and central shaft 7 are all bearing in by bearing
On transmission case 1；Drive bevel gear 3 is fixed on 16 final drive shafts 2, and driven wheel of differential 4 and counter drive shaft gear 6 are each attached to pair
On power transmission shaft 5, central shaft gear 8 is fixed on central shaft 7；Driven wheel of differential 4 engages with drive bevel gear 3, central shaft gear 8
Engage with counter drive shaft gear 6；Two differential speed gears are symmetricly set on the two ends of central shaft 7；The two ends of differential speed gears are arranged
Transplant arm 27 and lower transplanting arm 16；Power is delivered to counter drive shaft 5 by final drive shaft 2, then is delivered to upper transplanting through differential speed gears
Arm 27 and lower transplanting arm 16.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, differential speed gears includes differential driving gear 9, differential driven gear 10, gear
Case 15, center non-circular gear 21, upper first middle non-circular gear 22, upper second middle non-circular gear 24, upper 3rd middle not rounded
Gear 30, upper middle helical gear 25, upper planet helical gear 28, lower first middle non-circular gear 20, lower second middle non-circular gear
11, lower 3rd middle non-circular gear 12, lower middle helical gear 18 and lower planet helical gear 14, and it is bearing in gear by bearing
Upper first jackshaft 23 in case 15, upper second jackshaft 26, upper planet axle 29, lower first jackshaft 19, lower second jackshaft
17 and lower planet axle 13；Differential driving gear 9 is fixed on counter drive shaft 5；Differential driven gear 10 empty set on central shaft 7,
And engage with differential driving gear 9；The end that gear-box 15 stretches out outside transmission case with central shaft 7 is fixed by pin；Center is non-
Knucle-gear 21 is fixed with differential driven gear 10 by dental inlay；Upper first middle non-circular gear 22 and upper second middle non-circular gear
24 are each attached on the first jackshaft 23；Upper first middle non-circular gear 22 engages with center non-circular gear 21；In upper 3rd
Between non-circular gear 30 and upper middle helical gear 25 be each attached on the second jackshaft 26；Upper 3rd middle non-circular gear 30 is with upper
Second middle non-circular gear 24 engages；Upper planet helical gear 28 is fixed on upper planet axle 29, and nibbles with upper middle helical gear 25
Close；Lower first middle non-circular gear 20 and lower second middle non-circular gear 11 are each attached to down on the first jackshaft 19；Lower first
Middle non-circular gear 20 engages with center non-circular gear 21；Lower 3rd middle non-circular gear 12 and lower middle helical gear 18 are the most fixing
On lower second jackshaft 17；Lower 3rd middle non-circular gear 12 engages with lower second middle non-circular gear 11；Lower planet helical teeth
Wheel 14 is fixed on lower planet axle 13, and engages with lower middle helical gear 18.
As shown in Fig. 1, Fig. 6 and Fig. 7, the arm housing 36 of transplanting of upper transplanting arm 27 stretches out outside gear-box with upper planet axle 29
One end is fixed, and the arm housing of transplanting of lower transplanting arm 16 is fixed with one end that lower planet axle 13 stretches out outside gear-box, and upper transplanting arm
With the same side that lower transplanting arm is arranged on gear-box；The cam of upper transplanting arm and lower transplanting arm is all fixed with gear-box；Upper transplanting
Arm 27 is identical with the structure of lower transplanting arm 16, all uses the prior art of maturation, such as Application No. 201110164729.9
Patent.
As shown in Figure 1 and Figure 5, upper first jackshaft 23 and lower first jackshaft 19 are symmetricly set on central shaft 7 both sides；On
Second jackshaft 26 and lower second jackshaft 17 are symmetricly set on central shaft 7 both sides；Upper planet axle 29 and lower planet axle 13 are symmetrical
Centrally disposed axle 7 both sides, the crossed axis angle between upper planet axle 29 and central shaft 7, lower planet axle 13 and central shaft 7 is α；On
The helical angle of middle helical gear 25, upper planet helical gear 28, lower middle helical gear 18 and lower planet helical gear 14 is β；α=2
β；The value of β can according to wide-and narrow-row transplant line-spacing require be adjusted, when the line-spacing of wide row and narrow row be respectively 400mm and
During 200mm, β=8 °.
As shown in Figure 2, Figure 3 and Figure 4, upper first middle non-circular gear 22 and the geometric parameters of lower first middle non-circular gear 20
Counting up to exactly the same, upper second middle non-circular gear 24 is identical with the geometric parameter of lower second middle non-circular gear 11, and upper
Three middle non-circular gears 30 are identical with the geometric parameter of lower 3rd middle non-circular gear 12；Upper middle helical gear 25, up
Star helical gear 28, lower middle helical gear 18 are identical with the geometric parameter of lower planet helical gear 14, be all modulus be 3, the number of teeth
It it is the left-hand helical gear of 17.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 8 and Fig. 9, center non-circular gear 21, upper second middle non-circular gear 24 and lower the
The pitch curve of two middle non-circular gears 11 is formed by cubic nonratio-nal B-spline curve matching, and by 12 data point parameter controls
The shape of pitch curve processed, obtains satisfactory variable speed drive characteristic by optimizing the numerical value of data point parameter；Center is non-
12 data point parameters of Knucle-gear 21 pitch curve are respectively as follows: r1=17.5mm, r2=19.8mm, r3=22.4mm, r4=
21.5mm, r5=22.4mm, r6=19.8mm, r7=17.5mm, r8=19.8mm, r9=22.4mm, r10=21.5mm, r11=
22.4mm, r12=19.8mm；Center non-circular gear 21 and upper first middle non-circular gear 22, lower first middle non-circular gear 20
Centre-to-centre spacing is 41.5.As it is shown in figure 9,12 of upper second middle non-circular gear 24 or down the second middle non-circular gear 11 pitch curve
Data point parameter is respectively as follows: r1'=11mm, r2'=12mm, r3'=17mm, r4'=30mm, r5'=33mm, r6'=27mm,
r7'=26mm, r8'=29mm, r9'=33mm, r10'=31mm, r11'=19mm, r12'=13mm；Non-knuckle-tooth in the middle of upper second
Wheel 24 and upper 3rd middle non-circular gear 30, lower second middle non-circular gear 11 and the centre-to-centre spacing of lower 3rd middle non-circular gear 12
It is 51mm.
As shown in Fig. 1, Figure 10, Figure 11 and Figure 12, counter drive shaft gear 6 and central shaft gear 8 are the knuckle-tooth of 1 for gear ratio
Wheel, or be intermeshing non-circular gear, differential driving gear 9 and the Knucle-gear that differential driven gear 10 is gear ratio 1:2, or
For intermeshing non-circular gear；The seedling taking section transplanting track 43 that transplanting mechanism seedling taking intermediate plate 38 cusp is formed is at top view
Above for one section of track of a to b in straight line section, i.e. figure point-blank.
As shown in Fig. 1, Figure 10, Figure 11 and Figure 12, differential speed gears is different from traditional planet circular system, for two degrees of freedom machine
Structure, center non-circular gear and gear-box 15 all can rotate in mechanism's work process, make mechanism can realize gear ratio freely
Characteristic；For realizing the wide narrow requirement of the line-spacing one of pot seedling wide-narrow row planting, the transplanting track 43 of transplanting mechanism seedling taking intermediate plate cusp
Transplanting process to be met has certain side-play amount, as is illustrated by figs. 11 and 12, transplants arm offset distance △ after seedling taking point b seedling taking
D, pushes in soil pushing away seedling point c by pot seedling, when Ji Tao mechanism works simultaneously, can form rice shoot wide row and narrow row alternately plantation
Effect.During transplanting, in order to prevent the traversing action of the seedling taking action and seedling case of transplanting arm from interfering, it is ensured that move
On cultivation track 43, the transversal displacement from seedling taking inlet point a to the seedling taking section of seedling taking point b is the least, as shown in figure 11, and the present invention
Combine the drive characteristic of differential speed gears and non-circular gear, make a to b on the transplanting track of mechanism point-blank, there is no horizontal stroke
To side-play amount, it is achieved that " directly pressing from both sides Seedling ".
The operation principle of this differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism is:
Power is delivered on driven wheel of differential 4 through drive bevel gear 3 by the final drive shaft 2 in transmission case 1, drives auxiliary driving
Axle 5 rotates, and counter drive shaft gear 6 drives central shaft gear 8 to rotate, and transfers power to central shaft 7, one end of central shaft 7 with
Gear-box 15 is fixed, and driven gear case 15 rotates, and meanwhile, counter drive shaft 5 drives differential driving gear 9 to rotate, and is transmitted by power
To empty set differential driven gear 10 on central shaft 7；In gear-box 16, empty set on central shaft 7 with differential driven gear 10
Fixing center non-circular gear 21 engages with upper first middle non-circular gear 22, lower first middle non-circular gear 20 respectively；Differential
Driven gear 10 drives center non-circular gear 21 to rotate, then through upper first middle non-circular gear 22, upper second middle non-circular gear
24, upper 3rd middle non-circular gear 30, upper middle helical gear 25, upper planet helical gear 28 are delivered to transplanting arm 27；Through lower
One middle non-circular gear 20, lower second middle non-circular gear 11, lower 3rd middle non-circular gear 12, lower middle helical gear 18, under
Epicyclic singleplent helical gear 14 is delivered to lower transplanting arm 16；Meanwhile, gear-box 15 rotates under the drive of central shaft 7, turning of gear-box 15
Gear train, upper transplanting arm 27 and lower transplanting arm 16 in dynamic drive case rotate, and transplant arms simultaneously by from center not rounded for two
The power of gear 21 and the driving of the power of gear-box 15, owing to two power exist speed discrepancy, make transplanting arm achieve differential
Rotate.
The cam 31 that the rotation transplanting arm makes shift fork 34 be secured around on gear-box 15 swings, shift fork 34 warp before seedling taking
Spend the ascent stage of cam 31 and lift, pushing sprout pole 35 is pulled back, simultaneously by spring base 33 compression spring 32, be welded on and push away seedling
U-shaped block 39 on bar is also moved rearwards by with pushing sprout pole, and (seedling taking intermediate plate 38 is fixed on shifting by fixed block 37 to extruding seedling taking intermediate plate 38
Plant on arm housing 36), make two intermediate plates close and clamp rice shoot, complete seedling taking action；To before pushing away seedling after seedling taking, at shift fork 34
Extreme higher position maintaining segment in cam 31；When transplanting arm arrival and pushing away seedling point c, shift fork 34 goes to the reverse-running section of cam 31, spring
32 returns promote pushing sprout pole 35 and U-shaped block 39 rapid movement forward, and seedling taking intermediate plate 38 opens under natural resiliency, unclamps pot seedling,
The native alms bowl of pot seedling 42 is pushed in the soil on ground 44 by pushing sprout pole, completes seedling pushing action.Owing to upper planet helical gear 14 is non-with center
Crossed axis angle α between Knucle-gear 21 and between lower planet helical gear 6 and center non-circular gear 21 is not zero, therefore on transplant arm
27, the rotational plane of lower transplanting arm 16 is not parallel with the rotational plane of gear-box 15, causes the seedling taking intermediate plate 38 transplanted on arm to exist
After on the alms bowl dish 41 of seedling case 40, seedling taking point b takes pot seedling 42, offset distance △ D pushes away seedling to pushing away seedling point c laterally, is achieved in Oryza sativa L.
The mechanization wide-and narrow-row of pot seedling is transplanted.
Claims (6)
1. differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism, including transmission case, final drive shaft, drive bevel gear, from mantle tooth
Wheel, counter drive shaft, counter drive shaft gear, central shaft, central shaft gear, differential speed gears, upper transplanting arm and lower transplanting arm, its feature
It is: described counter drive shaft and central shaft are all bearing on transmission case by bearing；Drive bevel gear is fixed on final drive shaft
On, driven wheel of differential and counter drive shaft gear are each attached on counter drive shaft, and central shaft gear is fixing on center shaft；Described
Driven wheel of differential engages with drive bevel gear, and central shaft gear engages with counter drive shaft gear；Two differential speed gears are symmetrical arranged
Two ends at central shaft；The two ends of differential speed gears arrange transplanting arm and lower transplanting arm；
Described differential speed gears include differential driving gear, differential driven gear, gear-box, center non-circular gear, in upper first
Between non-circular gear, upper second middle non-circular gear, upper 3rd middle non-circular gear, upper middle helical gear, upper planet helical gear, under
First middle non-circular gear, lower second middle non-circular gear, lower 3rd middle non-circular gear, lower middle helical gear and lower planet are oblique
Gear, and be bearing in gear-box by bearing upper first jackshaft, upper second jackshaft, upper planet axle, in lower first
Countershaft, lower second jackshaft and lower planet axle；Described differential driving gear is fixed on counter drive shaft；Differential driven tooth bye
Set on center shaft, and engages with differential driving gear；The end that gear-box and central shaft stretch out outside transmission case is solid by pin
Fixed；Described center non-circular gear is fixed with differential driven gear by dental inlay；In upper first middle non-circular gear and upper second
Between non-circular gear be each attached on the first jackshaft；Upper first middle non-circular gear engages with center non-circular gear；Upper 3rd
Middle non-circular gear and upper middle helical gear are each attached on the second jackshaft；In upper 3rd middle non-circular gear and upper second
Between non-circular gear engagement；Upper planet helical gear is fixed on upper planet axle, and engages with upper middle helical gear；Lower first is middle non-
Knucle-gear and lower second middle non-circular gear are each attached to down on the first jackshaft；Lower first middle non-circular gear and center not rounded
Gear engages；Lower 3rd middle non-circular gear and lower middle helical gear are each attached to down on the second jackshaft；Lower 3rd is middle non-
Knucle-gear engages with lower second middle non-circular gear；Lower planet helical gear is fixed on lower planet axle, and with lower middle helical gear
Engagement；
The arm housing of transplanting of described upper transplanting arm is fixed with one end that upper planet axle stretches out outside gear-box, the transplanting arm of lower transplanting arm
One end that housing stretches out outside gear-box with lower planet axle is fixed, and upper transplanting arm and lower transplanting arm are arranged on the same of gear-box
Side；The cam of upper transplanting arm and lower transplanting arm is all fixed with gear-box；Upper transplanting arm is identical with the structure of lower transplanting arm.
Differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism the most according to claim 1, it is characterised in that: described upper
One jackshaft and lower first jackshaft are symmetricly set on central shaft both sides；Described upper second jackshaft and lower second jackshaft pair
Claim centrally disposed axle both sides；Described upper planet axle and lower planet axial symmetry centrally disposed axle both sides, upper planet axle with in
Mandrel, crossed axis angle between lower planet axle and central shaft are α；Upper middle helical gear, upper planet helical gear, lower middle helical gear
And the helical gear helical angle of lower planet is β；α=2 β；The line-spacing that β transplants according to wide-and narrow-row requires value.
Differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism the most according to claim 1, it is characterised in that: described upper
One middle non-circular gear is identical with the geometric parameter of lower first middle non-circular gear, upper second middle non-circular gear and lower the
The geometric parameter of two middle non-circular gears is identical, upper 3rd middle non-circular gear and the geometry of lower 3rd middle non-circular gear
Parameter is identical；Described upper middle helical gear, upper planet helical gear, lower middle helical gear and the helical gear geometry of lower planet
Parameter is identical, be all modulus be 3, the number of teeth be the left-hand helical gear of 17.
Differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism the most according to claim 1, it is characterised in that: described center
The pitch curve of non-circular gear, upper second middle non-circular gear and lower second middle non-circular gear is by three uniform B-Spline songs
Line matching forms, and by the shape controlling pitch curve to footpath of 12 data points.
Differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism the most according to claim 1, it is characterised in that: described secondary biography
Moving axis gear and central shaft gear are Knucle-gear, and gear ratio is 1, or are intermeshing non-circular gear；Described differential
Driving gear and differential driven gear are Knucle-gear, and gear ratio 1:2, or are intermeshing non-circular gear.
Differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism the most according to claim 1, it is characterised in that: above transplant arm or
The seedling taking intermediate plate cusp of lower transplanting arm formed transplant track seedling taking section in the horizontal plane be projected as straight line section.
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| CN201610833213.1A CN106258115B (en) | 2016-09-20 | 2016-09-20 | Differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism |
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| CN107630986A (en) * | 2017-09-26 | 2018-01-26 | 浙江理工大学 | The planetary gear train planting mechanism and its design method of Some Second Order Elliptic bevel gear driving |
| CN111853162A (en) * | 2020-06-15 | 2020-10-30 | 江苏大学 | Two-degree-of-freedom non-constant-speed gear train transplanting mechanism and method |
| CN114402761A (en) * | 2022-01-17 | 2022-04-29 | 江苏大学 | Large-plant-spacing rice pot seedling transplanting mechanism |
| CN114467431A (en) * | 2022-01-17 | 2022-05-13 | 江苏大学 | Single-arm rice pot seedling transplanting mechanism |
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| CN111853162A (en) * | 2020-06-15 | 2020-10-30 | 江苏大学 | Two-degree-of-freedom non-constant-speed gear train transplanting mechanism and method |
| CN111853162B (en) * | 2020-06-15 | 2024-03-19 | 江苏大学 | Two-degree-of-freedom non-constant-speed gear train transplanting mechanism and method |
| CN114402761A (en) * | 2022-01-17 | 2022-04-29 | 江苏大学 | Large-plant-spacing rice pot seedling transplanting mechanism |
| CN114467431A (en) * | 2022-01-17 | 2022-05-13 | 江苏大学 | Single-arm rice pot seedling transplanting mechanism |
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Application publication date: 20170104 Assignee: ZHEJIANG KALUOLAINA WEAVING Co.,Ltd. Assignor: ZHEJIANG SCI-TECH University Contract record no.: X2021330000803 Denomination of invention: Wide and narrow row transplanting mechanism for bowl seedlings of differential gear line rice Granted publication date: 20180731 License type: Common License Record date: 20211215 |
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Application publication date: 20170104 Assignee: Zhejiang Boshang Textile Co.,Ltd. Assignor: ZHEJIANG SCI-TECH University Contract record no.: X2024330000028 Denomination of invention: Differential speed wheel rice bowl seedling wide and narrow row transplanting mechanism Granted publication date: 20180731 License type: Common License Record date: 20240403 |