CN106717364A - The coaxial oval not exclusively not rounded of double-rod ejection type and Knucle-gear planetary system rice seedling throwing mechanism - Google Patents
The coaxial oval not exclusively not rounded of double-rod ejection type and Knucle-gear planetary system rice seedling throwing mechanism Download PDFInfo
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- CN106717364A CN106717364A CN201611057878.4A CN201611057878A CN106717364A CN 106717364 A CN106717364 A CN 106717364A CN 201611057878 A CN201611057878 A CN 201611057878A CN 106717364 A CN106717364 A CN 106717364A
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- 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
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- 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
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- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
- F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating motion
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- General Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- Transplanting Machines (AREA)
Abstract
The invention discloses a kind of oval not exclusively not rounded of coaxial double-rod ejection type and Knucle-gear planetary system rice seedling throwing mechanism, including planet carrier；Center non-circular gear toothed portion, the incomplete Knucle-gear in center, the first middle elliptic gear, the first centre not exclusively Knucle-gear, the second middle elliptic gear, the second centre not exclusively Knucle-gear, the first planet elliptic gear, the second planet elliptic gear, two rice transplanting planting arms are supported with the planet carrier；The rice transplanting planting arm includes that slip is provided with hollow loop bar in planting arm housings, the planting arm housings, is slided in the hollow loop bar and is provided with solid push rod；The hollow loop bar is provided with the first limiting plate, the second limiting plate and open-and-close mechanism；Double outline cam, shift fork and triggering pulling are hinged with the planting arm housings；The present invention is rotated once using two arrangements of planting arm, planet carrier, and twice, high working efficiency adapts to paddy field and nonirrigated farmland rice transplanting operation of the rice-seedling throwing machine under any rotating speed for seedling taking and ejection work.
Description
Technical field
The invention belongs to agricultural mechanical field, and in particular to a kind of coaxial double-rod ejection type ellipse-incomplete not rounded and circle
Gear planetary system type rice seedling throwing mechanism.
Background technology
Current paddy machinery plantation mainly has three kinds of modes：Live, rice transplanting and rice transplanting.Wherein live is a kind of unordered plantation
Mode and growth period is long, rice transplanting has 5~7 days seedling-slowing stages, and two methods can extend growth period；But rice transplanting does not have seedling-slowing stage,
For common rice shoot, rice transplanting can improve 10-15% yield.In addition rice transplanting has transplanting speed fast, and the advantage of root, quilt are not hindered
Rice Cropping expert is recommended as volume increase ratio highest plantation agronomy.But unordered rice transplanting operation is unfavorable for later stage field management,
And the ventilation of influence paddy rice, uniform pickup sunlight and soil nutrient, easily trigger pest and disease damage, be not suitable for the small field plantation of China
National conditions are so as to influence the popularization of rice-seedling throwing machine.Therefore the research and development of ordered seedling throwing mechanism are the keys for solving problem above.
The beginning of the eighties, Japan has produced ordered seedling throwing machinery, and enters market；Due to its complex structure, machining accuracy
It is required that high, high cost, the low many reasons of operating efficiency fail spread, only account for the 0.5% of Monitoring of Paddy Rice Plant Area with
Under.
Current most domestic rice-seedling throwing machine uses manpower Backpack type rice seedling throwing machine, and its principle is to utilize compressed air by paddy rice alms bowl
Body blows out, and using gravity landing, the mode with traditional manpower rice transplanting is exactly the same, although save labour turnover, but still can not
The problems such as solving rice shoot floating, rice shoot skewness.The country also develops various different types of ordered seedling throwing mechanisms, typically
There are the 2ZPY-H530 type rice-with-soil-block row transplanters that China Agricultural University develops, the aspirated-air type small-sized hand that Agricultural University Of Shenyang develops
Formula accurate rice pot seedling sequential transplanting machine is helped, the push rod push type ordered seedling throwing mechanism designed by the agricultural research of Nanjing, in addition black dragon
Jiang Bayi land reclamation and cultivations university, Zhejiang University, Agricultural University Of Hunan and Guangxi University are all carried out to pot seedling conveying ordering type rice seedling throwing mechanism
Research.These mechanisms fail to be widely popularized due to reason in operating efficiency or structure.
The content of the invention
The purpose of the present invention is directed to the deficiencies in the prior art, there is provided a kind of coaxial double-rod ejection type ellipse-not exclusively non-
Circle with Knucle-gear planetary system rice seedling throwing mechanism, the mechanism can meet rice seedling thrower planting arm needed for special track requirements, and pass
Dynamic steady, impact is small.
In order to achieve the above object, the technical solution adopted in the present invention is as follows：A kind of coaxial double-rod ejection type ellipse-
Incomplete not rounded and Knucle-gear planetary system rice seedling throwing mechanism, including planet carrier；The incomplete not rounded in center is supported with the planet carrier
Gear, the incomplete Knucle-gear in center, the first middle elliptic gear, in the middle of first not exclusively Knucle-gear, the second middle elliptic gear,
Incomplete Knucle-gear, the first planet elliptic gear, the second planet elliptic gear in the middle of second；
The incomplete Knucle-gear of the center non-circular gear toothed portion and center is coaxially fixedly linked, and the incomplete knuckle-tooth in center
The gear teeth of wheel are arranged on not homonymy with the gear teeth of center non-circular gear toothed portion；In the middle of the first middle elliptic gear and first
Incomplete Knucle-gear is coaxially fixedly linked, and the not exclusively gear teeth of Knucle-gear in the middle of the gear teeth of the first middle elliptic gear and first
It is arranged on not homonymy；The second middle elliptic gear, the second centre not exclusively Knucle-gear are coaxially fixedly linked, and in the middle of second
The gear teeth of not exclusively Knucle-gear are arranged on not homonymy in the middle of the gear teeth of elliptic gear and second；
The center of rotation of the first middle elliptic gear and the second middle elliptic gear is symmetricly set on center in 180 degree
The center of rotation both sides of non-circular gear toothed portion；The center of rotation of the first planet elliptic gear and the second planet elliptic gear
The center of rotation both sides of center non-circular gear toothed portion are symmetricly set in 180 degree；
The both sides of the first middle elliptic gear respectively with center non-circular gear toothed portion and the first planet elliptic gear
It is meshed；The both sides of the second middle elliptic gear respectively with center non-circular gear toothed portion and the second planet elliptic gear phase
Engagement；Not exclusively Knucle-gear or the second centre not exclusively Knucle-gear is mutually nibbled in the middle of the incomplete Knucle-gear in described center and first
Close；
Also include two rice transplanting planting arms, the first planet elliptic gear and the second planet elliptic gear are planted with rice transplanting
Arm is planted coaxially to be connected.
Further, the first described middle elliptic gear, the second middle elliptic gear, the first planet elliptic gear and
The pitch curve parameter of two planet elliptic gears is identical；Incomplete knuckle-tooth in the middle of incomplete Knucle-gear and second in the middle of described first
The pitch curve parameter of wheel is identical.
Further, the open-and-close mechanism includes Z-shaped button and Z-shaped button compression spring, and the Z-shaped button is hinged on hollow loop bar
On, Z-shaped button compression spring, the other end and the catching groove folding of the Z-shaped button are set between one end of the Z-shaped button and hollow loop bar
Connection.
Further, there is first annular groove and the second annular groove on the double outline cam.
Further, the center of circle angular region α of the first annular groove is 75-85 degree, the central angle of the second annular groove
Range beta is 345-350 degree, the angle between the axis of symmetry where the first annular groove and the second annular grooveFor
100-250 degree.
Further, an end-rack of the shift fork is between the first limiting plate and the second limiting plate；The shift fork it is another
End abuts with the first annular groove of double outline cam, and one end of the triggering pulling is recessed with the second annular of double outline cam
Groove is abutted, and triggering pulling extension spring, the other end of triggering pulling and Z-shaped button are set between the other end and planting arm housings of triggering pulling
Coordinate transmission.
Further, the seedling-taking mechanism includes seedling pin, and the seedling is described for claiming to be hinged on the outer end of hollow loop bar
Seedling pin fastening spring is provided between seedling pin and hollow loop bar.
Further, the outer end of the solid push rod is fixedly connected with trapezoidal guide pad, and the trapezoidal guide pad is located at two
Between individual seedling pin.
Beneficial effects of the present invention are as follows：
1st, variable speed transmission of the invention, makes the seedling needle point point of planting arm form seedling pick-up trajectory, meets the agriculture of potted-seedling transplanting
Skill requirement；
2nd, the present invention replaces the Locking arc mechanism in existing mechanism using incomplete knuckle-tooth wheel set, and not only planet carrier is rotated
The whole gearratio change procedure of the incomplete Knucle-gear in center and middle not exclusively Knucle-gear is realized in small angle range, while
Realize in the whole cycle of planet carrier rotation, the gentle change of planetary system first order gear pair gearratio so that center is not complete
Wholecircle gear and middle not exclusively Knucle-gear are from during the entire process of starting to be engaged to and separate, and middle elliptic gear and planet are oval
Less mutation on gear rotational speed, reduce be driven in existing mechanism it is unstable, impact big shortcoming；
3rd, simple structure of the present invention, small volume, lightweight, the small, low cost of manufacture of vibration；
4th, the present invention using two planting arms arrangements, planet carrier rotates once, seedling taking and ejection work twice, work
Make efficiency high, adapt to paddy field and nonirrigated farmland rice transplanting operation of the rice-seedling throwing machine under any rotating speed.
5th, current most domestic rice-seedling throwing machine uses manpower Backpack type rice seedling throwing machine, and its principle is to utilize compressed air by paddy rice
Bowl blows out, and using gravity landing, the mode with traditional manpower rice transplanting is exactly the same, although save labour turnover, but still not
The problems such as rice shoot floating, rice shoot skewness can be solved.The present invention does innovative design, the folder of pot seedling to the planting arm of rice seedling throwing mechanism
Hold and realized in two steps with ejection process, using biconvex contour line mechanism and the pushing sprout pole device that can be separate, change tradition
The job order of rice seedling throwing mechanism, increases the ejection link of accurate rice pot seedling, and the design can reach not seedling hurting, improve depositing for rice shoot
Motility rate, and certain altitude by rice shoot ejection bury, can effectively solve rice shoot floating, rice shoot skewness the problems such as, this sets
Rice shoot floating, skewness relevant issues when meter aims to solve the problem that rice seedling throwing mechanism works, with the machinery artificial rice transplanting of substitution.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the embodiment of the present invention；
Fig. 2 is the operation principle schematic diagram of the embodiment of the present invention；
Fig. 3 is the structural representation of the planetary system of the embodiment of the present invention；
Fig. 4 is the sectional view of planting arm in the embodiment of the present invention；
Fig. 5 is the top view of planting arm in the embodiment of the present invention；
Fig. 6 is the partial enlarged drawing in Fig. 4；
Fig. 7 is the axonometric drawing of double outline cam in the embodiment of the present invention；
Fig. 8 be in the embodiment of the present invention triggering pulling and shift fork turn match somebody with somebody shaft side figure；
Fig. 9 is the central angle schematic diagram of first annular groove in the embodiment of the present invention；
Figure 10 is the central angle schematic diagram of the second annular groove in the embodiment of the present invention；
Figure 11 is the position relationship schematic diagram of first annular groove and the second annular groove in the embodiment of the present invention；
The schematic diagram that Figure 12 embodies for 5 motion processes of hollow loop bar in the embodiment of the present invention on double outline cam；
In figure：1. loop bar spring, 2. push rod cumulative spring, 3. hollow loop bar, 4. solid push rod, 5. shift fork, 6.Z shapes buckle,
7.Z shape buttons compression spring, 8. triggering pulling, 9. triggering pulling extension spring, 10. double outline cam, 11. planting arm housings, 12. seedlings
Pin, 13. seedling pin fastening springs, 14. trapezoidal guide pads, 15. seedling pin fixed mounts, 16. first limiting plates, 17. catching grooves, 18. second
Limiting plate, 101. first annular grooves, 102. second annular grooves, 19, central shaft, 20, planet carrier, 21, center it is not exclusively non-
Knucle-gear, 22, the incomplete Knucle-gear in center, the 23, first jackshaft, the 24, second jackshaft, the 25, first middle elliptic gear,
26th, incomplete Knucle-gear in the middle of first, the 27, second middle elliptic gear, incomplete Knucle-gear in the middle of 28, second, 29, the first row
Star axle, the 30, second planet axis, the 31, first planet elliptic gear, the 32, second planet elliptic gear, 33, planting arm, 34, seedling taking
Track, 35, pot seedling.
Specific embodiment
Embodiment of the present invention is described further below in conjunction with the accompanying drawings.
As shown in Figure 1,2 and 3, the present invention provides a kind of coaxial double-rod ejection type ellipse-incomplete not rounded and Knucle-gear row
Galaxy rice seedling throwing mechanism, including the incomplete Knucle-gear 22 of planet carrier 20, center non-circular gear toothed portion 21, center, the first jackshaft
23rd, in the middle of the second jackshaft 24, the first middle elliptic gear 25, first not exclusively Knucle-gear 26, the second middle elliptic gear 27,
Incomplete Knucle-gear 28, the first planet axis 29, the second planet axis 30, the first planet elliptic gear 31, the second planet in the middle of second
Elliptic gear 32 and planting arm 33.One end of central shaft 19 is connected with the power set of rice-seedling throwing machine, and the other end is consolidated with planet carrier 20
It is fixed；Center non-circular gear toothed portion 21 is fixed with the frame of rice-seedling throwing machine, the incomplete Knucle-gear 22 in center and the incomplete not rounded in center
Gear 21 is fixed, and the gear teeth 22 of the incomplete Knucle-gear in center are arranged on difference with the gear teeth of center non-circular gear toothed portion 21
Side；The equal empty set of the incomplete Knucle-gear 22 of center non-circular gear toothed portion 21 and center is on center shaft；First jackshaft 23 and
Two jackshafts 24 are symmetricly set on the both sides of central shaft 19 in 180 degree, and are connected by bearing with planet carrier 20；In the middle of first
, by spline connection, the not exclusively empty set of Knucle-gear 26 is in the first jackshaft in the middle of first for the jackshaft 23 of elliptic gear 25 and first
On, and fixed with the first middle elliptic gear 25, and not exclusively knuckle-tooth in the middle of the gear teeth of the first middle elliptic gear 25 and first
The gear teeth of wheel 26 are arranged on not homonymy；Second middle elliptic gear 27 and the second jackshaft 24 pass through spline connection, in the middle of second
The incomplete empty set of Knucle-gear 28 is fixed on the second jackshaft with the second middle elliptic gear 27, and oval tooth in the middle of second
The gear teeth of not exclusively Knucle-gear 28 are arranged on not homonymy in the middle of the gear teeth of wheel 27 and second；First planet axis 29 and the second planet axis
30 both sides that central shaft 19 is symmetricly set in 180 degree, are distributed the two ends of planet carrier 20, and pass through bearing with planet carrier 20
Connection；First planet elliptic gear 31 and the first planet axis 29 pass through spline connection, the second planet elliptic gear 32 and the second row
Star axle 30 passes through spline connection；One end of first planet axis 29 and the second planet axis 30 is stretched out outside planet carrier 20 and is transplanted with one
The housing 11 of arm is fixed.The both sides of the first middle elliptic gear 25 are ellipse with the planet of center non-circular gear toothed portion 21 and first respectively
Knucle-gear 31 is connected by gear pair；The both sides of the second middle elliptic gear 27 respectively with center non-circular gear toothed portion 21 and
Two planet elliptic gears 32 are connected by gear pair；When center non-circular gear toothed portion 21 starts with the first middle elliptic gear 25
During engagement, the incomplete Knucle-gear 22 in center is separated with not exclusively Knucle-gear 26 in the middle of first, with the second centre not exclusively Knucle-gear
28 engagements；When center non-circular gear toothed portion 21 starts to engage with the second middle elliptic gear 27, the incomplete Knucle-gear in center
22 separate with not exclusively Knucle-gear 28 in the middle of second, are engaged with not exclusively Knucle-gear 26 in the middle of first, it is ensured that the continuity of transmission.
First middle elliptic gear 25, the second middle elliptic gear 27, the first planet elliptic gear 31 and the second planet are ellipse
The pitch curve parameter of Knucle-gear 32 is identical；The section of the not exclusively centre of Knucle-gear 26 and second not exclusively Knucle-gear 28 is bent in the middle of first
Line parameter is identical.
The rice transplanting planting arm includes that slip is provided with hollow loop bar 3 in planting arm housings 11, the planting arm housings 11,
Slided in the hollow loop bar 3 and be provided with solid push rod 4, set between the end of the hollow loop bar 3 and planting arm housings 11
There is a loop bar spring 1, the solid push rod 4 and push rod cumulative spring 2 is provided with and planting arm housings 11 between；The hollow loop bar
3 are provided with the first limiting plate 16, the second limiting plate 18 and open-and-close mechanism；Catching groove, the opening-closing machine are provided with the solid push rod 4
Structure is connected with the folding of catching groove 17；Double outline cam 10, shift fork 5 and triggering pulling 8, shift fork are hinged with the planting arm housings 11
5 and triggering pulling 8 it is coaxial, as shown in figure 4, an end-rack of the shift fork 5 is between the first limiting plate 16 and the second limiting plate 18, institute
The other end for stating shift fork 5 is abutted with double outline cam 10, and the triggering pulling 8 coordinates transmission, the triggering pulling 8 with open-and-close mechanism
Triggering pulling extension spring 9 is provided between planting arm housings 11；The outer end of the hollow loop bar 3 is provided with seedling-taking mechanism.
The first planet elliptic gear 31 and the second planet elliptic gear 32 with the coaxial fixing phase of planting arm housings 11
Even, the double outline cam 10 is fixedly connected with planet carrier 20.
As shown in fig. 6, the open-and-close mechanism includes Z-shaped button 6 and Z-shaped button compression spring 7, the Z-shaped button 6 is hinged on hollow
On loop bar 3, Z-shaped button compression spring 7, the other end of the Z-shaped button 6 are set between one end of the Z-shaped button 6 and hollow loop bar 3
Be buckled in on catching groove 17.
As shown in Fig. 7, Fig. 9-11, there is twice annular groove, i.e., first annular groove on the double outline cam 10
101 and second annular groove 102, the center of circle angular region α of first annular groove 101 is 75-85 degree, the second annular groove 102
Center of circle angular range β is 345-350 degree, the folder between the axis of symmetry where 101 and second annular groove of first annular groove 102
AngleIt is 100-250 degree.Contrast general cam its feature of double outline cam 10 is to only need to a power source, and in phase
In same swing circle, multiple separate work can be completed, and accomplish not disturb mutually.
In the present embodiment, using two panels shift fork 5, triggering pulling 8 is clamped in the centre of two panels shift fork 5, and these three are hinged on same
In individual rotary shaft, as shown in figure 8, an end-rack of the shift fork 5 is between the first limiting plate 16 and the second limiting plate 18, shift fork 5
One end under the driving of double outline cam 10, around its shift fork 5 pin joint rotate, because an end-rack of shift fork 5 is first
Between the limiting plate 18 of limiting plate 16 and second and hollow loop bar 3 end and planting arm housings 11 between be provided with loop bar spring
1 so that one end of shift fork 5 props up the first limiting plate 16 all the time；When hollow loop bar 3 is displaced outwardly, the second limiting plate 18 is then limited
Make the axial stroke of hollow loop bar 3；The other end of the shift fork 5 is abutted with the first annular groove 101 of double outline cam 10,
One end of the triggering pulling 8 abuts with the second annular groove 102 of double outline cam 10, the other end and Z of the triggering pulling 8
Shape button 6 coordinates transmission, and triggering pulling stretching is set for stirring Z-shaped button 6, between the other end and planting arm housings 11 of triggering pulling 8
Spring 9.
Coaxial double-rod ejection mechanism is one of principal organ of the design, and it is set with 3 sets of solid push rods 4 of hollow loop bar
Meter, makes double-rod always work in same axis.On hollow loop bar 3, Z-type button 6 can only revolve the hinge of Z-type button 6 around hinged place in Fig. 4
Transhipment is dynamic or follows hollow loop bar 3 to be axially moved along the axis of hollow loop bar 3, has catching groove 17 in solid push rod 4, by Z-shaped
Button 6 clasps solid push rod 4 (as shown in Figure 6) can be such that double-rod moves together, and double outline cam 10 is coordinated by this kind of mechanism
Two kinds of feature actions of seedling taking and ejection are completed on the same axis.
As shown in figure 5, the seedling-taking mechanism includes seedling pin fixed mount 15 and seedling pin 12, the seedling pin fixed mount 15 is fixed on
The outer end of hollow loop bar 3, the seedling pin 12 is symmetrically hinged on seedling pin fixed mount 15, the seedling pin 12 and seedling pin fixed mount 15 it
Between be provided with seedling pin fastening spring 13.The outer end of the solid push rod 4 is fixedly connected with trapezoidal guide pad 14, the trapezoidal guiding
Block 14 is located between two seedling pins 12.Seedling-taking mechanism belongs to the end effector mechanism of this planting arm, trapezoidal guide pad 14 therein
Outer end with solid push rod 4 is rigidly connected, and coordinates real with the inner side spigot surface of seedling pin 12 while axial movement with solid push rod 4
The folding of existing seedling pin.Made comparisons with the seedling pin of existing rice transplanter, because it uses seedling pin fastening spring 13 to provide the power for clamping, institute
Seedling pin will not be damaged with when hard objects are clamped, be difficult to injure rice shoot.
Operation principle of the invention is as follows：
As shown in Fig. 2 planet carrier 20 is rotated counterclockwise, by oval-incomplete not rounded and Knucle-gear planetary system
Speed transmission, the cusp of seedling pin 12 of planting arm forms seedling pick-up trajectory 34；From head cusp to pot seedling disk, top is seedling taking section 34, plant
Arm vertically leaves pot seedling disk, it is to avoid pot seedling 35 is damaged during seedling taking, is to carry out ejection work when precalculated position is reached, and bowl is launched
Bury.
Seedling taking action is realized by seedling-taking mechanism, as shown in figure 5, hollow loop bar 3 rigidly connects with the whole fixed mount of seedling pin 12
Both move simultaneously to connect realization；
As shown in figure 12, hollow loop bar 3 (including Z-shaped buckles the He of compression spring 7 by double outline cam 10, shift fork 5 and spring
Triggering pulling extension spring 9) control, whole motion process include it is near stop, rise, backhaul, it is remote stop, 5 motion processes of ejection, in detail
It is as follows：
(1) it is near to stop：Seedling pin 12 is in initial state, absolute movement and the complete phase of transport motion in the section seedling pin 12
Together, now solid push rod 4 and trapezoidal guide pad 14 are in ejection state, the other end of Z-shaped button 6 be not buckled in on catching groove 17,
Second limiting plate 18 props up planting arm housings 11, hollow loop bar 3 is not axially moved.
(2) rise：The seedling taking process of seedling pin 12 is realized, the other end of shift fork 5 slips into the first ring of double outline cam 10
In connected in star 101, hollow loop bar 3, seedling pin fixed mount 15 are caused by the first annular groove 101 on double outline cam 10
With the axially outward motion of seedling pin 12, now solid push rod 4 and trapezoidal guide pad 14 are still static, then seedling pin 12 is relatively terraced
Shape guide pad 14 travels forward, and the inner side of seedling pin 12 is in contact with trapezoidal guide pad 14 so that seedling pin 12 is in seedling pin fastening spring 13
Clamp bowl under the collective effect of pressure and trapezoidal guide pad 14, the other end of Z-shaped button 6 be buckled in on catching groove 17.
(3) backhaul：It is double after the other end of shift fork 5 completes to slide in the first annular groove 101 of double outline cam 10
Profile line cam 10 is rotated further, and the other end of shift fork 5 starts sliding out first annular groove 101 so that shift fork 5 promotes first to limit
Position plate 16, so as to compress loop bar spring 1, Z-shaped button 6 has been clasped on the catching groove 17 of solid push rod 4 and has followed sky in the process
The direction that heart loop bar 3 compresses to loop bar spring 1 together is moved, while bowl follows hollow loop bar 3 to move together.
(4) it is remote to stop：Generally in Fig. 4 states, seedling pin 12 grips bowl, loop bar spring 1, push rod cumulative spring 2 above
All in compressive state；The cusp of period seedling pin 12 keeps not to the distance of the planetary gear pivot of rice seedling throwing mechanism planet circular system
Become.
(5) launch：The motion of one end of the control triggering pulling 8 of the second annular groove 102 of double outline cam 10, when button is pulled
When one end of machine 8 skids off the second annular groove 102, the other end of triggering pulling 8 stirs one end of Z-type button 6, and Z-type button 6 utilizes lever
Principle so that the other end of Z-shaped button 6 disengages the connection with catching groove 17, the push rod cumulative spring 2 for now being compressed discharges elastic potential
Can, make solid push rod drive guide pad 14 quickly to move, the bowl of the clamping of seedling pin 12 is quickly ejected, and injects soil.Shape afterwards
State keeps, and is that seedling taking is prepared next time.
Claims (8)
1. a kind of coaxial double-rod ejection type it is oval-not exclusively not rounded and Knucle-gear planetary system rice seedling throwing mechanism, including planet carrier；It is described
Be supported with planet carrier center non-circular gear toothed portion, the incomplete Knucle-gear in center, the first middle elliptic gear, in the middle of first not
Complete Knucle-gear, the second middle elliptic gear, the second centre not exclusively Knucle-gear, the first planet elliptic gear, the second planet are ellipse
Knucle-gear；
The incomplete Knucle-gear of the center non-circular gear toothed portion and center is coaxially fixedly linked, and the incomplete Knucle-gear in center
The gear teeth are arranged on not homonymy with the gear teeth of center non-circular gear toothed portion；It is not complete in the middle of the first middle elliptic gear and first
Wholecircle gear is coaxially fixedly linked, and not exclusively the gear teeth of Knucle-gear are set in the middle of the gear teeth of the first middle elliptic gear and first
In not homonymy；The second middle elliptic gear, the second centre not exclusively Knucle-gear are coaxially fixedly linked, and oval in the middle of second
The gear teeth of not exclusively Knucle-gear are arranged on not homonymy in the middle of the gear teeth of gear and second；
It is not complete that the center of rotation of the first middle elliptic gear and the second middle elliptic gear is symmetricly set on center in 180 degree
The center of rotation both sides of full non-circular gear；The center of rotation of the first planet elliptic gear and the second planet elliptic gear is in
180 degree is symmetricly set on the center of rotation both sides of center non-circular gear toothed portion；
Mutually nibbled with center non-circular gear toothed portion and the first planet elliptic gear respectively the both sides of the first middle elliptic gear
Close；Mutually nibbled with center non-circular gear toothed portion and the second planet elliptic gear respectively the both sides of the second middle elliptic gear
Close；The incomplete Knucle-gear in described center is meshed with not exclusively Knucle-gear or the second centre not exclusively Knucle-gear in the middle of first；
Also include two rice transplanting planting arms, the first planet elliptic gear and the second planet elliptic gear with rice transplanting planting arm
It is coaxial to be connected；
Characterized in that, the rice transplanting planting arm is including planting arm housings etc., slip is provided with hollow in the planting arm housings
Loop bar, slides in the hollow loop bar and is provided with solid push rod, is set between the end of the hollow loop bar and planting arm housings
There is loop bar spring, push rod cumulative spring is provided between the solid push rod and planting arm housings；The hollow loop bar is provided with
First limiting plate, the second limiting plate and open-and-close mechanism；Catching groove, the open-and-close mechanism and catching groove folding are provided with the solid push rod
Connection；Double outline cam, shift fork and triggering pulling are hinged with the planting arm housings, the shift fork and triggering pulling are coaxial, institute
An end-rack of shift fork is stated between the first limiting plate and the second limiting plate, the other end of the shift fork and one end of triggering pulling with
Double outline cam abutting, the other end and the open-and-close mechanism of the triggering pulling coordinate transmission, the other end and the cultivation of the triggering pulling
Triggering pulling extension spring is provided between plant arm housing；The outer end of the hollow loop bar is provided with seedling-taking mechanism；
The first planet elliptic gear and the second planet elliptic gear are coaxially fixedly linked with planting arm housings, the two-wheel
Profile cam is fixedly connected with planet carrier.
2. coaxial double-rod ejection type according to claim 1 it is oval-not exclusively not rounded and Knucle-gear planetary system rice seedling throwing mechanism,
Characterized in that, the first described middle elliptic gear, the second middle elliptic gear, the first planet elliptic gear and the second planet
The pitch curve parameter of elliptic gear is identical；The section of incomplete Knucle-gear and the second centre not exclusively Knucle-gear in the middle of described first
Parameter of curve is identical.
3. coaxial double-rod ejection type according to claim 1 it is oval-not exclusively not rounded and Knucle-gear planetary system rice seedling throwing mechanism,
Characterized in that, the open-and-close mechanism includes Z-shaped button and Z-shaped button compression spring, the Z-shaped button is hinged on hollow loop bar, institute
State and Z-shaped button compression spring is set between one end of Z-shaped button and hollow loop bar, the other end of the Z-shaped button is connected with catching groove folding.
4. coaxial double-rod ejection type according to claim 3 it is oval-not exclusively not rounded and Knucle-gear planetary system rice seedling throwing mechanism,
Characterized in that, having first annular groove and the second annular groove on the double outline cam.
5. coaxial double-rod ejection type according to claim 4 it is oval-not exclusively not rounded and Knucle-gear planetary system rice seedling throwing mechanism,
Characterized in that, the center of circle angular region α of the first annular groove is 75-85 degree, the center of circle angular range β of the second annular groove is
345-350 degree, the angle between the axis of symmetry where the first annular groove and the second annular grooveIt is 100-250 degree.
6. coaxial double-rod ejection type according to claim 4 or 5 it is oval-not exclusively not rounded and Knucle-gear planetary system rice-seedling throwing machine
Structure a, it is characterised in that end-rack of the shift fork is between the first limiting plate and the second limiting plate；The other end of the shift fork with
The first annular groove of double outline cam is abutted, and one end of the triggering pulling is supported with the second annular groove of double outline cam
Connect, triggering pulling extension spring is set between the other end and planting arm housings of triggering pulling, the other end of triggering pulling is closed with Z-shaped snap fit
Transmission.
7. coaxial double-rod ejection type according to claim 6 it is oval-not exclusively not rounded and Knucle-gear planetary system rice seedling throwing mechanism,
Characterized in that, the seedling-taking mechanism include seedling pin, the seedling for claim be hinged on the outer end of hollow loop bar, the seedling pin with
Seedling pin fastening spring is provided between hollow loop bar.
8. coaxial double-rod ejection type according to claim 7 it is oval-not exclusively not rounded and Knucle-gear planetary system rice seedling throwing mechanism,
Characterized in that, the outer end of the solid push rod is fixedly connected with trapezoidal guide pad, the trapezoidal guide pad is located at two seedling pins
Between.
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