CN103959966A - Vegetable seedling taking mechanism adopting planetary systems comprising elliptical, incomplete non-circular and circular gears - Google Patents
Vegetable seedling taking mechanism adopting planetary systems comprising elliptical, incomplete non-circular and circular gears Download PDFInfo
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- CN103959966A CN103959966A CN201410104229.XA CN201410104229A CN103959966A CN 103959966 A CN103959966 A CN 103959966A CN 201410104229 A CN201410104229 A CN 201410104229A CN 103959966 A CN103959966 A CN 103959966A
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Abstract
The invention discloses a vegetable seedling taking mechanism adopting planetary systems comprising elliptical, incomplete non-circular and circular gears, and aims to solve the problem of large transmission impact due to the fact that a conventional seedling taking mechanism adopts a locking arc for realizing large-range change of a transmission ratio of the seedling taking track. According to the mechanism, a center shaft is fixed with a planet carrier, a center incomplete non-circular gear is fixed with a rack, a center incomplete circular gear is fixed with the center incomplete non-circular gear, and the center shaft is freely sleeved with the center incomplete circular gear and the center incomplete non-circular gear; a first middle elliptical gear and a first middle shaft are connected through a spline, and a first middle incomplete circular gear is fixed with the first middle elliptical gear; a second middle elliptical gear is connected with a second middle shaft through a spine, and a second middle incomplete circular gear is fixed with the second middle elliptical gear; a first planetary elliptical gear is connected with a first planetary shaft through a spine, and a second planetary elliptical gear is connected with a second planetary shaft through a spine; and one end of the first planetary shaft and one end of the second planetary shaft both extend out of the planet carrier to be fixed with a casing of one seedling taking claw. According to the mechanism, the transmission is stable, and the impact is small.
Description
Technical field
The invention belongs to agricultural mechanical field, relate to a kind of vegetables seedling picking mechanism, be specifically related to a kind of ellipse-incomplete non-circle and Knucle-gear planetary system vegetables seedling picking mechanism.
Background technology
Transplanting has makes crop growth ahead of time and the comprehensive benefit to the compensating action of weather, can make full use of photo-thermal resource, and its economic and social profit is all considerable.The potted-seedling transplanting operation in paddy field, nonirrigated farmland need to be developed transplanting seedling picking mechanism.
Transmission Mechanism of Planetary Gear System is existing application in the seedling picking mechanism of transplanting machine, in order to complete, get seedling-the push away course of work of seedling-backhaul, transplant arm cusp and will complete needed movement locus, in existing planet circular system seedling picking mechanism, all adopted locking arc mechanism to get the needed gearratio of seedling track and change to reach on a large scale, the gearratio of locking arc transmission is equivalent to infinity, so in the transmission of locking arc and gear-driven transition stage, huge sudden change due to gearratio, the transmission of mechanism has very large impact, very unstable, be unfavorable for improving the seedling speed of getting.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, a kind of ellipse-incomplete non-circle and Knucle-gear planetary system vegetables seedling picking mechanism are provided, this mechanism can meet the required special track requirement of pot seedling transplanter, and stable drive, impact little.
The present invention includes central shaft, planet carrier, the incomplete non-circular gear in center, the incomplete Knucle-gear in center, the first jackshaft, the second jackshaft, the first middle elliptic gear, the first middle not exclusively Knucle-gear, the second middle elliptic gear, the second middle incomplete Knucle-gear, the first planet axis, the second planet axis, the first planet elliptic gear, the second planet elliptic gear and seedling claw.One end of described central shaft is connected with power set, and the other end and planet carrier are fixed; The incomplete non-circular gear in described center and frame are fixed, and the incomplete non-circular gear of the incomplete Knucle-gear in center and center is fixed, and the gear teeth of the incomplete non-circular gear of the gear teeth of the incomplete Knucle-gear in center and center are arranged on not homonymy; The equal empty set of the incomplete Knucle-gear of the incomplete non-circular gear in described center and center is on central shaft; Described the first jackshaft and the second jackshaft are symmetricly set on central shaft both sides, and are all connected by bearing with planet carrier; In the middle of described first, elliptic gear is with the first jackshaft by spline joint, and not exclusively Knucle-gear empty set, on the first jackshaft, and is fixed with the first middle elliptic gear in the middle of first; In the middle of described second, elliptic gear is with the second jackshaft by spline joint, and not exclusively Knucle-gear empty set, on the second jackshaft, and is fixed with the second middle elliptic gear in the middle of second; Described the first planet axis and the second planet axis are symmetricly set on planet carrier two ends, and are all connected by bearing with planet carrier; The first described planet elliptic gear and the first planet axis are by spline joint, and the second planet elliptic gear and the second planet axis are passed through spline joint; One end of the first planet axis and the second planet axis is all stretched out planet carrier housing outer and a seedling claw and is fixed.In the middle of described first, the both sides of elliptic gear are connected by gear pair with the incomplete non-circular gear in center and the first planet elliptic gear respectively; In the middle of second, the both sides of elliptic gear are connected by gear pair with the incomplete non-circular gear in center and the second planet elliptic gear respectively; The incomplete Knucle-gear in described center is connected by gear pair with incomplete Knucle-gear in the middle of incomplete Knucle-gear or second in the middle of first.
In the middle of described the first middle elliptic gear, second, the pitch curve parameter of elliptic gear, the first planet elliptic gear and the second planet elliptic gear is identical; The first described middle not exclusively Knucle-gear is with in the middle of second, not exclusively the pitch curve parameter of Knucle-gear is identical.
Described planet carrier rotates, and the seedling needle point point of seedling claw forms gets seedling track; The described head of getting seedling track is provided with latch closure, and cusp is to pot seedling disk top for getting seedling section from the head, and the linearity of getting seedling section is 1mm/20mm～1mm/10mm.
Beneficial effect of the present invention:
1, variable speed transmission of the present invention, makes the seedling needle point point formation of seedling claw get seedling track, meets the agriculture requirement of potted-seedling transplanting;
2, the present invention adopts incomplete knuckle-tooth wheel set to replace the locking arc mechanism in existing mechanism, not only in rotating small angle range, realized planet carrier the incomplete Knucle-gear in center and the middle not exclusively whole gearratio change procedure of Knucle-gear, realized in the whole cycle of planet carrier rotation simultaneously, the mild variation of planetary system first order gear pair gearratio, make the incomplete Knucle-gear in center with the incomplete Knucle-gear in centre from starting to be engaged to separated whole process, less sudden change on middle elliptic gear and planet elliptic gear rotating speed, weakened in existing mechanism transmission unstable, impact large shortcoming,
3, the present invention is simple in structure, volume is little, lightweight, vibrate little, low cost of manufacture;
4, the present invention adopts the arrangement of two seedling claws, and planet carrier rotates once, gets seedling operation twice, and operating efficiency is high, can adapt to paddy field and the nonirrigated farmland of transplanter under any rotating speed and transplant operation.
Accompanying drawing explanation
Fig. 1 is overall structure cutaway view of the present invention;
Fig. 2 is operation principle schematic diagram of the present invention;
Fig. 3 is the structural representation of planetary system in the present invention;
Fig. 4-1 is the interior cutaway view of seedling claw in the present invention;
Fig. 4-2 are the overall structure schematic diagram of seedling claw in the present invention;
Fig. 5-1 is that in the present invention, planet carrier corner is the transmission ratio curve figure of elliptic gear engagement in the middle of the incomplete non-circular gear in 0～280°Shi center and first;
Fig. 5-2 are that in the present invention, planet carrier corner is the transmission ratio curve figure that in the middle of the incomplete Knucle-gear in 280 °～360°Shi center and first, not exclusively Knucle-gear meshes.
In figure: 1, central shaft, 2, planet carrier, 3, the incomplete non-circular gear in center, 4, the incomplete Knucle-gear in center, 5, the first jackshaft, 6, the second jackshaft, 7, elliptic gear in the middle of first, 8, incomplete Knucle-gear in the middle of first, 9, elliptic gear in the middle of second, 10, incomplete Knucle-gear in the middle of second, 11, the first planet axis, 12, the second planet axis, 13, the first planet elliptic gear, 14, the second planet elliptic gear, 15, seedling claw, 15-1, push away seedling cam, 15-2, push away seedling shift fork, 15-3, seedling-pushing rod, 15-4, seedling pin, 15-5, spring, 15-6, push away seedling pawl, 16, get seedling track, 17, pot seedling.
Embodiment
As shown in Figure 1,2 and 3, a kind of ellipse-incomplete non-circle and Knucle-gear planetary system vegetables seedling picking mechanism comprise central shaft 1, planet carrier 2, the incomplete non-circular gear 3 in center, the incomplete Knucle-gear 4 in center, the first jackshaft 5, the middle incomplete Knucle-gear 10 of the middle elliptic gear 9, second of the middle not exclusively Knucle-gear 8, second of the middle elliptic gear 7, first of the second jackshaft 6, first, the first planet axis 11, the second planet axis 12, the first planet elliptic gear 13, the second planet elliptic gear 14 and seedling claw 15.One end of central shaft 1 is connected with power set, and the other end and planet carrier 2 are fixing; The incomplete non-circular gear 3 in center is fixed with frame, and the incomplete Knucle-gear 4 in center is fixing with the incomplete non-circular gear 3 in center, and the gear teeth of the incomplete non-circular gear of the gear teeth of the incomplete Knucle-gear in center and center are arranged on not homonymy; The incomplete non-circular gear 3 in center and the center equal empty set of incomplete Knucle-gear 4 is on central shaft; The first jackshaft 5 and the second jackshaft 6 are symmetricly set on central shaft both sides, and are all connected by bearing with planet carrier 2; In the middle of first elliptic gear 7 with the first jackshaft 5 by spline joint, in the middle of first not exclusively Knucle-gear 8 empty sets on the first jackshaft, and with first in the middle of elliptic gear 7 fix; In the middle of second elliptic gear 9 with the second jackshaft 6 by spline joint, in the middle of second not exclusively Knucle-gear 10 empty sets on the second jackshaft, and with second in the middle of elliptic gear 9 fix; The first planet axis 11 and the second planet axis 12 are symmetricly set on planet carrier 2 two ends, and are all connected by bearing with planet carrier; The first planet elliptic gear 13 and the first planet axis 11 are by spline joint, and the second planet elliptic gear 14 and the second planet axis 12 are passed through spline joint; One end of the first planet axis 11 and the second planet axis 12 is all stretched out planet carrier 2 housing outer and a seedling claw 15 and is fixed.In the middle of first, the both sides of elliptic gear 7 are connected by gear pair with the incomplete non-circular gear 3 in center and the first planet elliptic gear 13 respectively; In the middle of second, the both sides of elliptic gear 9 are connected by gear pair with the incomplete non-circular gear 3 in center and the second planet elliptic gear 14 respectively; When in the middle of the incomplete non-circular gear 3 in center and first, elliptic gear 7 starts to mesh, the incomplete Knucle-gear 4 in center is with in the middle of first, not exclusively Knucle-gear 8 is separated, with the second middle not exclusively Knucle-gear 10 engagements; When in the middle of the incomplete non-circular gear 3 in center and second, elliptic gear 9 starts to mesh, the incomplete Knucle-gear 4 in center, with not exclusively Knucle-gear 10 is separated in the middle of second, with the first middle not exclusively Knucle-gear 8 engagements, guarantees the continuity of transmission.
In the middle of first, the pitch curve parameter of elliptic gear the 7, second middle elliptic gear 9, the first planet elliptic gear 13 and the second planet elliptic gear 14 is identical; In the middle of first, not exclusively Knucle-gear 8 is identical with the pitch curve parameter of incomplete Knucle-gear 10 in the middle of second.
As shown in Figure 2, planet carrier 2 rotates counterclockwise, and by the variable speed transmission of ellipse-incomplete non-circle and Knucle-gear planetary system, the seedling needle point point of seedling claw 15 forms gets seedling track 16; The head of getting seedling track is provided with latch closure, and cusp is to pot seedling disk top for getting seedling section 16-1 from the head, and the linearity of getting seedling section is 1mm/20mm, guarantees that seedling claw vertically leaves pot seedling disk, damages pot seedling 17 while avoiding getting seedling.
As shown in Fig. 4-1 and 4-2, seedling claw 15 adopts ripe prior art, the patent that for example application number is 201210293743.3.
As shown in Fig. 5-1, in the one-period that planet carrier 2 rotates, when planet carrier corner is 0～280 °, elliptic gear 7 engagements in the middle of the incomplete non-circular gear 3 in center and first, its gearratio
with planet carrier corner
smooth variation; As shown in Fig. 5-2, when planet carrier corner is 280 °～360 °, not exclusively Knucle-gear 8 engagements in the middle of the incomplete Knucle-gear 4 in center and first, its gearratio
with planet carrier corner
occur keeping steady state value after sudden change, and the relative gearratio of steady state value
excursion do not occur sharply changing.Visible, in the middle of the incomplete Knucle-gear 4 in center and first, not exclusively Knucle-gear 8 engagements cause that the sudden change of planetary system first order gear pair gearratio is little, and have realized gearratio in planet carrier rotates small angle range
whole change procedure, realized in the whole cycle that planet carrier rotates simultaneously, planetary system first order gear pair gearratio comparatively mild variation, compared with prior art, stable drive, impulsive force is little.Occur that the gearratio variation tendency shown in Fig. 5-1 and 5-2 is while being 280 ° due to planet carrier corner, center partial gear 3 is separated with elliptic gear 7 in the middle of first, and in the middle of the incomplete Knucle-gear 4 in center and first, not exclusively Knucle-gear 8 starts engagement simultaneously; When planet carrier corner is 360 °, the incomplete Knucle-gear 4 in center is with in the middle of first, not exclusively Knucle-gear 8 is separated, and in the middle of center partial gear 3 and first, elliptic gear 7 starts engagement simultaneously.
The operation principle of this ellipse-incomplete non-circle and Knucle-gear planetary system vegetables seedling picking mechanism:
Power is passed to planet carrier 2 through central shaft 1, drives planet carrier 2 to rotate; Incomplete non-circular gear 3 empty sets in center are fixed on central shaft 1 and with frame, and planet carrier 2 drives first middle elliptic gear the 7, second middle elliptic gear 9, the first planet elliptic gear 13 and the second planet elliptic gear 14 revolution; In the middle of first, mesh with the incomplete non-circular gear 3 in center and the first planet elliptic gear 13 respectively the both sides of elliptic gear 7, in the middle of second, mesh with the incomplete non-circular gear 3 in center and the second planet elliptic gear 14 respectively the both sides of elliptic gear 9, has realized the variable speed transmission of seedling claw 15; When in the middle of the incomplete non-circular gear 3 in center and first, elliptic gear 7 starts to mesh, the incomplete Knucle-gear 4 in center is with in the middle of first, not exclusively Knucle-gear 8 is separated, with the second middle not exclusively Knucle-gear 10 engagements; When in the middle of the incomplete non-circular gear 3 in center and second, elliptic gear 9 starts to mesh, the incomplete Knucle-gear 4 in center, with not exclusively Knucle-gear 10 is separated in the middle of second, with the first middle not exclusively Knucle-gear 8 engagements, guarantees the continuity of transmission.
When planet carrier 2 turns to while pushing away seedling position, push away seedling cam 15-1 and push away seedling shift fork 15-2 rotation, pushing away seedling shift fork 15-2 drives seedling-pushing rod 15-3 to the head movement of seedling claw 15, the seedling pawl 15-6 that pushes away of seedling-pushing rod head completes and pushes away seedling action, seedling pin 15-4 opens under the effect of seedling-pushing rod, and pot seedling 17 comes off; When planet carrier 2 turns to while getting seedling position, push away seedling shift fork 15-2 in pushing away the closely section of stopping of seedling cam 15-1, seedling-pushing rod 15-3 and push away seedling shift fork 15-2 get back to initial position under the effect of spring 15-5, seedling pin 15-4 steps up the pot seedling 17 in pot seedling disk under the effect that pushes away seedling pawl 15-6, completes and gets that seedling moves and prepare for push away seedling next time.
Claims (3)
1. ellipse-incomplete non-circle and a Knucle-gear planetary system vegetables seedling picking mechanism, is characterized in that: comprise central shaft, planet carrier, the incomplete non-circular gear in center, the incomplete Knucle-gear in center, the first jackshaft, the second jackshaft, the first middle elliptic gear, the first middle not exclusively Knucle-gear, the second middle elliptic gear, the second middle incomplete Knucle-gear, the first planet axis, the second planet axis, the first planet elliptic gear, the second planet elliptic gear and seedling claw;
One end of described central shaft is connected with power set, and the other end and planet carrier are fixed; The incomplete non-circular gear in described center and frame are fixed, and the incomplete non-circular gear of the incomplete Knucle-gear in center and center is fixed, and the gear teeth of the incomplete non-circular gear of the gear teeth of the incomplete Knucle-gear in center and center are arranged on not homonymy; The equal empty set of the incomplete Knucle-gear of the incomplete non-circular gear in described center and center is on central shaft; Described the first jackshaft and the second jackshaft are symmetricly set on central shaft both sides, and are all connected by bearing with planet carrier; In the middle of described first, elliptic gear is with the first jackshaft by spline joint, and not exclusively Knucle-gear empty set, on the first jackshaft, and is fixed with the first middle elliptic gear in the middle of first; In the middle of described second, elliptic gear is with the second jackshaft by spline joint, and not exclusively Knucle-gear empty set, on the second jackshaft, and is fixed with the second middle elliptic gear in the middle of second; Described the first planet axis and the second planet axis are symmetricly set on planet carrier two ends, and are all connected by bearing with planet carrier; The first described planet elliptic gear and the first planet axis are by spline joint, and the second planet elliptic gear and the second planet axis are passed through spline joint; One end of the first planet axis and the second planet axis is all stretched out planet carrier housing outer and a seedling claw and is fixed; In the middle of described first, the both sides of elliptic gear are connected by gear pair with the incomplete non-circular gear in center and the first planet elliptic gear respectively; In the middle of second, the both sides of elliptic gear are connected by gear pair with the incomplete non-circular gear in center and the second planet elliptic gear respectively; The incomplete Knucle-gear in described center is connected by gear pair with incomplete Knucle-gear in the middle of incomplete Knucle-gear or second in the middle of first.
2. a kind of ellipse according to claim 1-incomplete non-circle and Knucle-gear planetary system vegetables seedling picking mechanism, is characterized in that: in the middle of described the first middle elliptic gear, second, the pitch curve parameter of elliptic gear, the first planet elliptic gear and the second planet elliptic gear is identical; The first described middle not exclusively Knucle-gear is with in the middle of second, not exclusively the pitch curve parameter of Knucle-gear is identical.
3. a kind of ellipse according to claim 1-incomplete non-circle and Knucle-gear planetary system vegetables seedling picking mechanism, is characterized in that: described planet carrier rotates, and the seedling needle point point of seedling claw forms gets seedling track; The described head of getting seedling track is provided with latch closure, and cusp is to pot seedling disk top for getting seedling section from the head, and the linearity of getting seedling section is 1mm/20mm～1mm/10mm.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104255146A (en) * | 2014-08-27 | 2015-01-07 | 浙江理工大学 | Non-circular gear asteroid three-jaw paddy rice pot seedling transplanting mechanism |
| CN105009754A (en) * | 2015-07-01 | 2015-11-04 | 浙江理工大学 | Reverse design method for gear pair of non-circular gear planetary rice potted-seedling transplanting mechanism |
| CN105746059A (en) * | 2016-03-02 | 2016-07-13 | 浙江理工大学 | Concave tooth-incomplete eccentric circle-non-circular gear planetary system vegetable seedling taking mechanism |
| CN111557155A (en) * | 2020-06-09 | 2020-08-21 | 云南省农业科学院园艺作物研究所 | Device and method for transplanting vegetables in plateau and mountain areas |
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| JPH03168011A (en) * | 1989-11-28 | 1991-07-19 | Iseki & Co Ltd | Seedling-planting transmission device of seedling transplanter |
| CN202818941U (en) * | 2012-08-17 | 2013-03-27 | 浙江理工大学 | Eccentric circle non-circular gear planetary gear train plug seedling taking mechanism |
| CN202873313U (en) * | 2012-09-17 | 2013-04-17 | 浙江理工大学 | Eccentric circular-noncircular gear planetary gear train rice pot seedling transplanting mechanism |
| CN202889926U (en) * | 2012-09-17 | 2013-04-24 | 浙江理工大学 | Rice pot seedling transplanting mechanism of ellipse-incompletely non-circular gear planetary gear train |
| CN203840744U (en) * | 2014-03-19 | 2014-09-24 | 浙江理工大学 | Vegetable seedling taking mechanism of elliptic-partial noncircular and circular gear planetary system |
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2014
- 2014-03-19 CN CN201410104229.XA patent/CN103959966B/en active Active
Patent Citations (5)
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|---|---|---|---|---|
| JPH03168011A (en) * | 1989-11-28 | 1991-07-19 | Iseki & Co Ltd | Seedling-planting transmission device of seedling transplanter |
| CN202818941U (en) * | 2012-08-17 | 2013-03-27 | 浙江理工大学 | Eccentric circle non-circular gear planetary gear train plug seedling taking mechanism |
| CN202873313U (en) * | 2012-09-17 | 2013-04-17 | 浙江理工大学 | Eccentric circular-noncircular gear planetary gear train rice pot seedling transplanting mechanism |
| CN202889926U (en) * | 2012-09-17 | 2013-04-24 | 浙江理工大学 | Rice pot seedling transplanting mechanism of ellipse-incompletely non-circular gear planetary gear train |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104255146A (en) * | 2014-08-27 | 2015-01-07 | 浙江理工大学 | Non-circular gear asteroid three-jaw paddy rice pot seedling transplanting mechanism |
| CN105009754A (en) * | 2015-07-01 | 2015-11-04 | 浙江理工大学 | Reverse design method for gear pair of non-circular gear planetary rice potted-seedling transplanting mechanism |
| CN105746059A (en) * | 2016-03-02 | 2016-07-13 | 浙江理工大学 | Concave tooth-incomplete eccentric circle-non-circular gear planetary system vegetable seedling taking mechanism |
| CN111557155A (en) * | 2020-06-09 | 2020-08-21 | 云南省农业科学院园艺作物研究所 | Device and method for transplanting vegetables in plateau and mountain areas |
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