CN206149818U - Non -circular gear mechanism is planted to helical gear alms bowl seedling zigzag width course - Google Patents
Non -circular gear mechanism is planted to helical gear alms bowl seedling zigzag width course Download PDFInfo
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- CN206149818U CN206149818U CN201621064209.5U CN201621064209U CN206149818U CN 206149818 U CN206149818 U CN 206149818U CN 201621064209 U CN201621064209 U CN 201621064209U CN 206149818 U CN206149818 U CN 206149818U
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- helical gear
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Abstract
The utility model discloses a non -circular gear mechanism is planted to helical gear alms bowl seedling zigzag width course. At present, capable mechanized the transplantation generally through transplanting mechanism's staggered arrangement with two sets classs of row spacings of rice zigzag width to the slope installation realizes. The utility model discloses well unilateral mechanism just can realize the transplantation of two lines of seedlings, transplants the orbit through the gear train implementation space that has space transmission characteristic, has guaranteed the upright degree of seedling, compound train be two -freedom -degree mechanism, adopts fixed transmission ratio 's knuckle -tooth wheel in the transmission case or adopts the non -circular gear, adopts the gear combination of non -circular gear and crisscross helical gear in the gear box, and two power inputs of central non -circular gear and transmission case make transplants arms and realize that differentials rotate, and differential gearing makes mechanism's freer drive ratio of acquisition on not constant speed transmission characteristic and space transmission characteristic basic to realize big latch closure space " 8 font " the orbit of complicated " directly pressing from both sides the seedling " formula.
Description
Technical field
The utility model belongs to agricultural mechanical field, is related to high-speed rice pot seedling zigzag width line transplanter, and in particular to
A kind of non-circular gear-helical gear pot seedling zigzag wide-and narrow-row transplanting mechanism.
Background technology
At present, rice transplanter is numerous in variety, but the either wide-and narrow-row rice transplanting line-spacing rice transplanting such as still, and transplanting mechanism is taken
Rice shoot all be blanket seedling, easily hinder root.And the rice shoot that pot seedling wide-and narrow-row transplanting mechanism is taken be pot seedling, the seedling between alms bowl and alms bowl
There is no packing phenomenon, so not there are problems that hindering root in seedling taking process, compare blanket seedling rice transplanting and there is shorter turning green week
Phase, this is significant to improving rice yield.
While paddy rice zigzag wide-narrow row planting refers to that rice seedling plant line space implementation one wide is narrow, adjacent rows
Planting patterns of the rice plant into zigzag staggeredly, this planting patterns using crop Edge advantages principles of increase yield, by adjusting
The line space of whole rice shoot, improving divulged information between plant, and can improve the illumination utilization rate of unit area, while pest and disease damage can be mitigated,
So as to reach good quality and high output, the purpose of cost-saving synergistic.
The patent application of Publication No. CN102640604A discloses a kind of high-speed transplanter non-circular gear wide-and narrow-row and transplants
Mechanism, although first order helical gear and second level non-circular gear drive are refer in the patent application, wide-and narrow-row rice transplanting is realized, its
The characteristics of motion meets to a certain extent the seedling taking of transplanting mechanism seedling pin, rice transplanting track and attitude, but its function is only limitted to insert
" kidney-shaped " track of seedling machine or " dolphin shape " track, can not meet the requirement of accurate rice pot seedling zigzag wide-and narrow-row transplanting.
The patent of invention of Publication No. CN103493634A proposes a kind of oblique zigzag of space planet circular system corn wide-and narrow-row
The two schemes of transplanting mechanism, adopt sprocket wheel chain drive in transmission case in scheme, Bevel Gear Transmission is adopted in gear-box, realize
Track is transplanted in space, and by two gear-boxes in 90 ° of arrangements, to realize interlock seedling taking and rice transplanting, the mechanism can improve plant
Between ventilation, light transmittance；But there is a larger side-play amount transplanting track that bevel gear mechanism is realized in seedling taking section, seedling taking success rate compared with
It is low.
The content of the invention
The purpose of this utility model is to be directed to the deficiencies in the prior art, there is provided one kind is applied to high-speed rice pot seedling transplanter
Non-circular gear-helical gear pot seedling zigzag wide-and narrow-row transplanting mechanism.
In order to achieve the above object, the technical solution adopted in the utility model is：
The utility model includes transmission case, power transmission shaft, drive bevel gear, driven wheel of differential, intermediate propeller shaft, intermediate transmission
Shaft gear, central shaft, center shaft gear, compound gear train, right transplanting arm and left transplanting arm；Described power transmission shaft, intermediate propeller shaft
It is bearing on transmission case by bearing with central shaft；Described drive bevel gear is fixed on power transmission shaft, driven wheel of differential and
Intermediate transmission shaft gear is each attached on intermediate propeller shaft；Driven wheel of differential is engaged with drive bevel gear；Center shaft gear is fixed
On center shaft, and with intermediate transmission shaft gear engage；The two ends of the centrally disposed axle of two compound gear trains.
Described compound gear train include differential driving gear, differential driven gear, gear-box, center non-circular gear, upper the
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 by bearing upper first jackshaft in gear-box, upper second jackshaft, upper planet axle, under
First jackshaft, lower second jackshaft and lower planet axle；Described differential driving gear is fixed on intermediate propeller shaft；Differential from
Moving gear is fixed on center shaft, and is engaged with differential driving gear；The end that gear-box stretches out outside transmission case with central shaft leads to
Cross pin to fix；Described center non-circular gear is fixed by dental inlay with differential driven gear；Upper first middle non-circular gear and
Upper second middle non-circular gear is each attached on the first jackshaft；The upper first described middle non-circular gear and the non-knuckle-tooth in center
Wheel engagement；Upper 3rd middle non-circular gear and upper middle helical gear are each attached on the second jackshaft, upper 3rd middle not rounded
Gear and upper second middle non-circular gear engagement；Upper planet helical gear is fixed on upper planet axle, and is nibbled with upper middle helical gear
Close；Lower first middle non-circular gear and lower second middle non-circular gear are each attached to down on the first jackshaft, non-in the middle of lower first
Knucle-gear is engaged with center non-circular gear；Lower 3rd middle non-circular gear and lower middle helical gear are each attached to down the second jackshaft
On, the 3rd middle non-circular gear and lower second middle non-circular gear engagement down；Lower planet helical gear is fixed on lower planet axle, and
Engage with lower middle helical gear.
Described upper planet axle right-hand member is stretched out outside gear-box, and is fixed with the transplant arm housing of right transplanting arm；Lower planet axle
Left end stretch out outside gear-box, and fix with the transplant arm housing of left transplanting arm；The cam of right transplanting arm and left transplanting arm with
Gear-box is fixed；Right transplanting arm is identical with the structure of left transplanting arm.
Described upper planet axle and the crossed axis angle between central shaft, lower planet axle and central shaft is α；Upper middle helical teeth
Wheel, upper planet helical gear, lower middle helical gear and the helical gear helical angle of lower planet are β；α=2 β；β is according to zigzag width
The line-spacing that row is transplanted requires value.
Described the upper first middle non-circular gear and the geometric parameter of lower first middle non-circular gear is identical, and upper second
The geometric parameter of middle non-circular gear and lower second middle non-circular gear is identical, upper 3rd middle non-circular gear and the lower 3rd
The geometric parameter of middle non-circular gear is identical.
Upper middle helical gear and lower middle helical gear in addition to oppositely oriented, other geometric parameter all sames；Upper planet helical teeth
Take turns with lower planet helical gear in addition to oppositely oriented, other geometric parameter all sames.
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 fitting is formed, and controls the shape of pitch curve by 12 data point radial values.
It is left-hand helical gear that the 3, number of teeth is 17 that described upper middle helical gear, upper planet helical gear are moduluses；It is described
Lower middle helical gear and lower planet helical gear be modulus be dextrorotation helical gear that the 3, number of teeth is 17.
Described intermediate transmission shaft gear and center shaft gear is Knucle-gear, and gearratio is 1, or for intermeshing
Non-circular gear；Differential driving gear and differential driven gear are Knucle-gear, and gearratio is 1：2, or for intermeshing non-
Knucle-gear.
The seedling taking section of the transplanting track that the seedling taking intermediate plate cusp of the right transplanting arm or left transplanting arm is formed is in horizontal plane
On be projected as straight line section.
The beneficial effects of the utility model are：
1st, the utility model solves staggered gear-elliptic cone planetary gear train and staggered gear-non-circular gear is transplanted
Mechanism is applicable only to the problem of rice transplanter, and compared to " kidney-shaped " and " dolphin shape " of these transplanting mechanisms track is transplanted, this
The transplanting mechanism of utility model can form big latch closure space " 8-shaped " track of complexity, to adapt to paddy rice zigzag potted-seedling transplanting
Particular/special requirement.The plantation of pot seedling zigzag is the agronomic technique more advanced than transplanting and conventional wide-narrow row planting, realizes mechanization
Difficulty it is also higher, so the utility model with simple gear mechanism realize rice transplanter transplanting mechanism institute it is irrealizable
Pot seedling wide-and narrow-row transplants function；Compared with the zigzag transplanting mechanism in patent No. CN103493634A, one side of the present utility model
Mechanism can just transplant two row rice shoots, can significantly reduce the production cost of the whole machine of transplanter, meanwhile, seedling taking section does not have lateral shift to make
The seedling taking success rate of mechanism is higher, can be that the high-quality volume increase and further mechanization of paddy rice contributes.
2nd, the utility model is binary compound gear train transplanting mechanism, is transplanted with traditional single-degree-of-freedom planet circular system
Mechanism is different, and compound gear train transplanting mechanism can realize the gearratio of complexity, meanwhile, plane non-circular gear and staggeredly bevel gear set
The form of conjunction so that the planet circular system of transplanting mechanism possesses space drive characteristic while with variable speed drive characteristic, makes
Transplanting mechanism can realize that track is transplanted in big latch closure " 8-shaped " space of complexity；Simultaneously as the gearratio of mechanical flexibility, makes
The helical gear that obtaining mechanism only need to be staggered installation of can be achieved with preferable space tracking；Meanwhile, in compound gear train of the present utility model
Gear is face gear, it is easy to processes and makes cost to substantially reduce, be more suitably applied to production practices.
Description of the drawings
Fig. 1 is principle schematic diagram. of the present utility model.
Fig. 2 is the assembling schematic diagram of each gear in the utility model.
Fig. 3 is the side side view of each gear engagement states in the utility model.
Fig. 4 is the opposite side side view of each gear engagement states in the utility model.
Fig. 5 is lower middle helical gear of the present utility model and lower planet helical gear interlocks mesh schematic representation.
Fig. 6 is transplanting arm sectional view of the present utility model.
Fig. 7 is transplanting arm top view of the present utility model.
Fig. 8 is non-circular gear pitch curve figure in center of the present utility model.
Fig. 9 is upper second middle non-circular gear pitch curve figure of the present utility model.
Figure 10 is seedling taking process schematic of the present utility model.
Figure 11 is that the utility model is realized transplanting the top view of track.
The transplanting effect diagram that wide-and narrow-row is transplanted is formed when Figure 12 is the utility model operation.
The transplanting effect diagram that zigzag wide-and narrow-row is transplanted is formed when Figure 13 is the utility model operation.
In figure：1st, transmission case, 2, power transmission shaft, 3, drive bevel gear, 4, driven wheel of differential, 5, intermediate propeller shaft, 6, middle
Shaft gear, 7, central shaft, 8, center shaft gear, 9, differential driving gear, 10, differential driven gear, in the middle of 11, lower second
Non-circular gear, 12, lower 3rd middle non-circular gear, 13, lower planet axle, 14, lower planet helical gear, 15, gear-box, 16, move to left
Plant arm, 17, lower second jackshaft, 18, lower middle helical gear, 19, lower first jackshaft, 20, lower first middle non-circular gear,
21st, center non-circular gear, 22, upper first middle non-circular gear, 23, upper first jackshaft, 24, upper second middle non-circular gear,
25th, upper middle helical gear, 26, upper second jackshaft, 27, right transplanting arm, 28, upper planet helical gear, 29, upper planet axle, 30, on
3rd middle non-circular gear, 31, cam, 32, spring, 33, spring base, 34, shift fork, 35, pushing sprout pole, 36, transplant arm housing,
37th, fixed block, 38, seedling taking intermediate plate, 39, U-shaped block, 40, seedling case, 41, alms bowl disk, 42, pot seedling, 43, transplant track, 44, ground, a,
Seedling taking inlet point, b, seedling taking point, push away seedling point at c.
Specific embodiment
With reference to the accompanying drawings and examples the utility model is described in further detail.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of non-circular gear-helical gear pot seedling zigzag wide-and narrow-row transplanting mechanism, bag
Include transmission case 1, power transmission shaft 2, drive bevel gear 3, driven wheel of differential 4, intermediate propeller shaft 5, intermediate transmission shaft gear 6, central shaft
7th, center shaft gear 8, compound gear train, right transplanting arm 27 and left transplanting arm 16；Power transmission shaft 2, intermediate propeller shaft 5 and central shaft 7 are equal
It is bearing on transmission case 1 by bearing；Drive bevel gear 3 is fixed on power transmission shaft 2, driven wheel of differential 4 and intermediate propeller shaft tooth
Wheel 6 is each attached on intermediate propeller shaft 5；Driven wheel of differential 4 is engaged with drive bevel gear 3；Center shaft gear 8 is fixed on central shaft
On 7, and engage with intermediate transmission shaft gear 6；The two ends of the centrally disposed axle 7 of two compound gear trains；Power is transmitted by power transmission shaft 2
Right transplanting arm 27 and left transplanting arm 16 are delivered to intermediate propeller shaft 5, then Jing compound gear trains.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, compound gear train 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
11st, lower 3rd middle non-circular gear 12, lower middle helical gear 18 and lower planet helical gear 14, and gear is bearing in by bearing
Upper first jackshaft 23, upper second jackshaft 26, upper planet axle 29, lower first jackshaft 19, lower second jackshaft in case 15
17 and lower planet axle 13；Differential driving gear 9 is fixed on intermediate propeller shaft 5；Differential driven gear 10 is fixed on central shaft 7
On, 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
Non-circular gear 21 is fixed by dental inlay with differential driven gear 10；Non- knuckle-tooth in the middle of upper first middle non-circular gear 22 and upper second
Wheel 24 is each attached on the first jackshaft 23；Upper first middle non-circular gear 22 is engaged with center non-circular gear 21；Upper 3rd
Middle non-circular gear 30 and upper middle helical gear 25 are each attached on the second jackshaft 26, upper 3rd middle non-circular gear 30 with
Upper second middle non-circular gear 24 is engaged；Upper planet helical gear 28 is fixed on upper planet axle 29, and with upper middle helical gear 25
Engagement；Lower first middle non-circular gear 20 and lower second middle non-circular gear 11 are each attached to down on first jackshaft 19, and time the
One middle non-circular gear 20 is engaged with center non-circular gear 21；Lower 3rd middle non-circular gear 12 and lower middle helical gear 18 are solid
It is scheduled on down on the second jackshaft 17, lower 3rd middle non-circular gear 12 is engaged with the lower second middle non-circular gear 11；Lower planet is oblique
The wheel of tooth 14 is fixed on lower planet axle 13, and is engaged with lower middle helical gear 18.
As shown in Fig. 1, Fig. 6 and Fig. 7, the right-hand member of upper planet axle 29 is stretched out outside gear-box 15, and with the transplanting of right transplanting arm 27
Arm housing 36 is fixed；The left end of lower planet axle 13 is stretched out outside gear-box 15, and is fixed with the transplant arm housing 36 of left transplanting arm 16；
The cam of right transplanting arm and left transplanting arm is fixed with gear-box；Right transplanting arm 27 is identical with the structure of left transplanting arm 16,
Using ripe prior art, the such as patent of Application No. 201110164729.9.
As shown in Figure 1 and Figure 5, upper planet axle 29, lower planet axle 13 are α with the crossed axis angle of central shaft 7；Upper middle helical teeth
The helical angle of wheel 25, upper planet helical gear 28, lower middle helical gear 18 and lower planet helical gear 14 is β；α=2 β；β is according to width
The line-spacing that narrow row is transplanted requires value, when the line-spacing of wide row and narrow row is respectively 400mm and 200mm, helixangleβ=7.5 °.
As shown in Figure 2, Figure 3 and Figure 4, the geometric parameters of the upper first middle non-circular gear 22 and the lower first middle non-circular gear 20
Count up to exactly the same, upper second middle non-circular gear 24 is identical with the geometric parameter of the lower second middle non-circular gear 11, 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 with it is lower in
Between helical gear 18 in addition to oppositely oriented, other geometric parameter all sames；Upper planet helical gear 28 is with lower planet helical gear 14 except rotation
To contrary outer, other geometric parameter all sames.
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 fitting, and by 12 data point parameter controls
The shape of pitch curve processed, by optimizing the numerical value of data point parameter satisfactory ratio characteristic can be obtained；The non-knuckle-tooth in center
12 data point parameters for taking turns 21 pitch curves are respectively：r1=21.2mm, r2=23.4mm, r3=27.2mm, r4=28mm, r5=
28mm, r6=25.3mm, r7=23.4mm, r8=24.2mm, r9=28mm, r10=28mm, r11=28mm, r12=25.2mm；
Center non-circular gear 21 is 51.1mm with the centre-to-centre spacing of the upper first middle non-circular gear 22 and lower first middle non-circular gear 20.
As shown in figure 9,12 data point parameters point of upper second middle non-circular gear 24 or the lower pitch curve of second middle non-circular gear 11
It is not：r1'=12mm, r2'=13.6mm, r3'=21mm, r4'=33mm, r5'=35mm, r6'=30mm, r7'=27mm, r8′
=30mm, r9'=32mm, r10'=30mm, r11'=21mm, r12'=13.5mm；Upper second middle non-circular gear 24 and upper
The centre-to-centre spacing of three middle non-circular gears 30, lower second middle non-circular gear 11 and lower 3rd middle non-circular gear 12 is
53.6mm；It is left-hand helical gear that the 3, number of teeth is 17 that upper middle helical gear 25 and upper planet helical gear 28 are moduluses；Lower centre
It is dextrorotation helical gear that the 3, number of teeth is 17 that helical gear 18 and lower planet helical gear 14 are moduluses.
As shown in Fig. 1, Figure 10, Figure 11 and Figure 12, intermediate transmission shaft gear 6 and center shaft gear 8 are Knucle-gear, and pass
It is dynamic than being 1, or for intermeshing non-circular gear；Differential driving gear 9 and differential driven gear 10 are Knucle-gear, and are driven
Than for 1：2, or for intermeshing non-circular gear；The shifting that the seedling taking intermediate plate cusp of right transplanting arm 27 or left transplanting arm 16 is formed
It is straight line section on top view to plant seedling taking section of the track from a to b.
As shown in Fig. 1, Figure 10, Figure 11, Figure 12 and Figure 13, compound gear train is different from traditional planet circular system, is two free
Degree mechanism, center non-circular gear and gear-box all can be rotated in mechanism's course of work, allow mechanism to realize free transmission
Ratio characteristic；To realize the narrow requirement of line-spacing one wide of pot seedling wide-narrow row planting, the transplanting track of transplanting mechanism seedling taking intermediate plate cusp
43 will meet transplanting process certain side-play amount, as is illustrated by figs. 11 and 12, transplanting arm offset distance after seedling taking point b seedling takings
△ D, push pot seedling in soil seedling point c is pushed away；Require to realize that zigzag is transplanted, two row rice shoots need alternately to plant, right transplanting arm
27 and left transplanting arm 16 be arranged on the both sides of gear-box 15, carry out alternately seedling taking and push away seedling, formation zigzag width as shown in fig. 13 that
Narrow row planting effect.During transplanting, in order to prevent the seedling taking action of transplanting arm from interfering with the traversing action of seedling case,
Ensure that the transversal displacement for transplanting the seedling taking section of point b from seedling taking inlet point a to seedling taking on track 43 is as far as possible little, as shown in figure 11,
Compound gear train pot seedling wide-and narrow-row transplanting mechanism of the present utility model combines the drive characteristic of compound gear train and non-circular gear, makes machine
A to b point-blank, is realized " directly pressing from both sides seedling " on the transplanting track of structure.
The operation principle of the non-circular gear-helical gear pot seedling zigzag wide-and narrow-row transplanting mechanism is：
Power is delivered on driven wheel of differential 4 by the Jing drive bevel gears 3 of power transmission shaft 2 in transmission case 1, drives intermediate transmission
Axle 5 is rotated, and intermediate transmission shaft gear 6 drives center shaft gear 8 to rotate, and transfers power to central shaft 7, one end of central shaft 7
Fix with gear-box 15, drive gear-box 15 to rotate, meanwhile, intermediate propeller shaft 5 drives differential driving gear 9 to rotate, by power
It is delivered to differential driven gear 10 of the empty set on central shaft 7；In gear-box 16, empty set on central shaft 7 with differential driven tooth
The center non-circular gear 21 that wheel 10 is fixed is engaged respectively with the upper first middle non-circular gear 22, lower first middle non-circular gear 20；
Differential driven gear 10 drives center not rounded bevel gear 21 to rotate, then the upper first middle non-circular gears 22 of Jing, upper second centre are non-
Knucle-gear 24, upper 3rd middle non-circular gear 30, upper middle helical gear 25, upper planet helical gear 28 are delivered to right transplanting arm 27；
First middle non-circular gear 20, lower second middle non-circular gear 11, lower 3rd middle non-circular gear 12, lower middle helical gear under Jing
18th, lower planet helical gear 14 is delivered to left transplanting arm 16；Meanwhile, gear-box 15 is rotated under the drive of central shaft 7, gear-box 15
Rotation drive gear train in case, right transplanting arm 27 and left transplanting arm 16 to rotate, two transplanting arms are subject to from center simultaneously
The driving of the power of non-circular gear 21 and the power of gear-box 15, because two power have speed discrepancy, realizes transplanting arm
Differential is rotated.
The rotation of transplanting arm swings the cam 31 that shift fork 34 is secured around on gear-box 15, the Jing of shift fork 34 before seedling taking
Spend the ascent stage of cam 31 and lift, pushing sprout pole 35 is pulled back, while by the compression spring 32 of spring base 33, being welded on and pushing 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 to extruding seedling taking intermediate plate 38 by fixed block 37
Plant on arm housing 36), make two intermediate plates close and clamp rice shoot, complete seedling taking action；From after seedling taking to pushing away before seedling, at shift fork 34
In the extreme higher position maintaining segment of cam 31；When transplanting arm is reached pushes 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 quickly to move forward, and seedling taking intermediate plate 38 opens under natural resiliency, unclamp pot seedling,
Pushing sprout pole pushes the native alms bowl of pot seedling 42 in the soil on ground 44, completes seedling pushing action.Due to upper planet helical gear 14 and center it is non-
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 right transplanting arm
27th, the rotational plane of the rotational plane of left transplanting arm 16 and gear-box 15 is not parallel, causes seedling taking intermediate plate 38 in the alms bowl of seedling case 40
Seedling taking point b is taken after pot seedling 42 on disk 41, the offset distance △ D to the left of right transplanting arm 27, left transplanting arm offset distance △ D to the right,
Seedling point c is pushed away by pot seedling implantation soil, the mechanization zigzag wide-and narrow-row for being achieved in accurate rice pot seedling is transplanted.
Claims (7)
1. a kind of non-circular gear-helical gear pot seedling zigzag wide-and narrow-row transplanting mechanism, including transmission case, power transmission shaft, active conical tooth
Wheel, driven wheel of differential, intermediate propeller shaft, intermediate transmission shaft gear, central shaft, center shaft gear, compound gear train, right transplanting arm and
Left transplanting arm, it is characterised in that：Described power transmission shaft, intermediate propeller shaft and central shaft are bearing on transmission case by bearing；
Described drive bevel gear is fixed on power transmission shaft, and driven wheel of differential and intermediate transmission shaft gear are each attached to intermediate propeller shaft
On；Driven wheel of differential is engaged with drive bevel gear；Center shaft gear is fixed on central shaft, and is nibbled with intermediate transmission shaft gear
Close；The two ends of the centrally disposed axle of two compound gear trains；
Described compound gear train is including in differential driving gear, differential driven gear, gear-box, center non-circular gear, 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 by bearing upper first jackshaft in gear-box, upper second jackshaft, upper planet axle, in lower first
Countershaft, lower second jackshaft and lower planet axle；Described differential driving gear is fixed on intermediate propeller shaft；Differential driven gear
Fix on center shaft, and engage with differential driving gear；The end that gear-box stretches out outside transmission case with central shaft passes through pin
It is fixed；Described center non-circular gear is fixed by dental inlay with differential driven gear；Upper first middle non-circular gear and upper second
Middle non-circular gear is each attached on the first jackshaft；The upper first described middle non-circular gear is nibbled with center non-circular gear
Close；Upper 3rd middle non-circular gear and upper middle helical gear are each attached on the second jackshaft, upper 3rd middle non-circular gear
Engage with the upper second middle non-circular gear；Upper planet helical gear is fixed on upper planet axle, and is engaged with upper middle helical gear；Under
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
Engage with center non-circular gear；Lower 3rd middle non-circular gear and lower middle helical gear are each attached to down on the second jackshaft, under
3rd middle non-circular gear and lower second middle non-circular gear engagement；Lower planet helical gear is fixed on lower planet axle, and with
Middle helical gear engagement；
Described upper planet axle right-hand member is stretched out outside gear-box, and is fixed with the transplant arm housing of right transplanting arm；A left side for lower planet axle
End is stretched out outside gear-box, and is fixed with the transplant arm housing of left transplanting arm；The cam of right transplanting arm and left transplanting arm is and gear
Case is fixed；Right transplanting arm is identical with the structure of left transplanting arm；
Described the upper first middle non-circular gear and the geometric parameter of lower first middle non-circular gear is identical, in the middle of upper second
The geometric parameter of non-circular gear and lower second middle non-circular gear is identical, in the middle of upper 3rd middle non-circular gear and the lower 3rd
The geometric parameter of non-circular gear is identical.
2. a kind of non-circular gear according to claim 1-helical gear pot seedling zigzag wide-and narrow-row transplanting mechanism, its feature exists
In：Described upper planet axle and the crossed axis angle between central shaft, lower planet axle and central shaft is α；It is upper middle helical gear, up
Star helical gear, lower middle helical gear and the helical gear helical angle of lower planet are β；α=2 β；β is transplanted according to zigzag wide-and narrow-row
Line-spacing requires value.
3. a kind of non-circular gear according to claim 1-helical gear pot seedling zigzag wide-and narrow-row transplanting mechanism, its feature exists
In：Upper middle helical gear and lower middle helical gear in addition to oppositely oriented, other geometric parameter all sames；Upper planet helical gear is with
Epicyclic singleplent helical gear in addition to oppositely oriented, other geometric parameter all sames.
4. a kind of non-circular gear according to claim 1-helical gear pot seedling zigzag wide-and narrow-row transplanting mechanism, its feature exists
In：The pitch curve of described center non-circular gear, upper second middle non-circular gear and lower second middle non-circular gear is by three times
Non-uniform B-spline curve fitting is formed, and controls the shape of pitch curve by 12 data point radial values.
5. a kind of non-circular gear according to claim 1-helical gear pot seedling zigzag wide-and narrow-row transplanting mechanism, its feature exists
In：It is left-hand helical gear that the 3, number of teeth is 17 that described upper middle helical gear, upper planet helical gear are moduluses；It is described it is lower in
Between helical gear and lower planet helical gear be modulus be dextrorotation helical gear that the 3, number of teeth is 17.
6. a kind of non-circular gear according to claim 1-helical gear pot seedling zigzag wide-and narrow-row transplanting mechanism, its feature exists
In：Described intermediate transmission shaft gear and center shaft gear is Knucle-gear, and gearratio is 1, or for intermeshing not rounded
Gear；Differential driving gear and differential driven gear are Knucle-gear, and gearratio is 1：2, or for intermeshing non-knuckle-tooth
Wheel.
7. a kind of non-circular gear according to claim 1-helical gear pot seedling zigzag wide-and narrow-row transplanting mechanism, its feature exists
In：The throwing in the horizontal plane of the seedling taking section of the transplanting track that the seedling taking intermediate plate cusp of the right transplanting arm or left transplanting arm is formed
Shadow is straight line section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621064209.5U CN206149818U (en) | 2016-09-20 | 2016-09-20 | Non -circular gear mechanism is planted to helical gear alms bowl seedling zigzag width course |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621064209.5U CN206149818U (en) | 2016-09-20 | 2016-09-20 | Non -circular gear mechanism is planted to helical gear alms bowl seedling zigzag width course |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206149818U true CN206149818U (en) | 2017-05-10 |
Family
ID=58650962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621064209.5U Withdrawn - After Issue CN206149818U (en) | 2016-09-20 | 2016-09-20 | Non -circular gear mechanism is planted to helical gear alms bowl seedling zigzag width course |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206149818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109892082A (en) * | 2019-04-04 | 2019-06-18 | 张振华 | Duplicate rows cripple's seedling rice planting rice transplanter |
-
2016
- 2016-09-20 CN CN201621064209.5U patent/CN206149818U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109892082A (en) * | 2019-04-04 | 2019-06-18 | 张振华 | Duplicate rows cripple's seedling rice planting rice transplanter |
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