CN105830604A - Transplanting mechanism of rice transplanter - Google Patents
Transplanting mechanism of rice transplanter Download PDFInfo
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- CN105830604A CN105830604A CN201610252112.5A CN201610252112A CN105830604A CN 105830604 A CN105830604 A CN 105830604A CN 201610252112 A CN201610252112 A CN 201610252112A CN 105830604 A CN105830604 A CN 105830604A
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- backlash
- gearcase
- transplanting
- arm
- bearing
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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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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Transplanting Machines (AREA)
Abstract
The invention discloses a transplanting mechanism of a rice transplanter. A right transplanting mechanism comprises a gear box, a sun wheel, two middle wheels, two planet wheels, two spline flange shafts, two planting heads and a drive arm, wherein the gear box is of a dumbbell-shaped symmetric structure; the sun wheel is supported at the center of the gear box through a bearing; the two middle wheels are symmetrically supported on the left and right sides of the sun wheel through a hinge pin; the spline flange shafts are supported on the outer sides of the planet wheels through a bearing; the planet wheels are fixed on the spline flange shafts; the planet wheels and the sun wheels are of the same tooth profile; a backlash eliminating mechanism is mounted between the spline flange shafts and the gear box; the planting heads are mounted on the spline flange shafts; and the two planting heads are connected through the drive arm. In the invention, exchange of the gear box shells of the transplanting mechanisms on the left and right sides of the rice transplanter can be realized, the rotational inertia of the gear box can be increased, the effect of a flywheel is realized, and the machine operation is more stable; and moreover, the stock of maintenance parts can be reduced for the farmers, and the cost is saved.
Description
Technical field
The present invention relates to rice transplanter technical field, particularly relate to a kind of rice transplanter transplanting mechanism.
Background technology
The used rotary transplanting mechanism of rice transplanter has the advantages such as work efficiency is high, machine power performance is good,
Therefore extensively apply in actual production.The present invention can reduce the throwing of one set of die expense in process of production
Enter, thus reduce the purpose of production cost.And when there will be the feelings of machine breakdown in agricultural production
During condition, according to current rice transplanter aftermarket it is possible that spare and accessory parts are difficult to situation about purchasing in time.With
Time China current rice transplanter spare and accessory parts price the highest, peasant is difficult to bear and cannot make a big purchase in large quantities as joining
Part is prepared for urgent need.If there being a kind of rice transplanter gearcase housing can realize between the transplanting mechanism of the left and right sides
Exchange will make the inventory cost of peasant be substantially reduced.
Summary of the invention
The defect being had for existing design, the invention provides a kind of rice transplanter transplanting mechanism.
It is as follows that the present invention solves the technical scheme that technical problem used: a kind of rice transplanter transplanting mechanism, is inserting
The two ends, output shaft left and right of seedling machine transmission case are installed with left and right transplanting mechanism, described left and right point of plug in machine
Structure symmetrical configuration, it is characterised in that described right transplanting mechanism include gearcase, sun gear, two breast wheels,
Two planetary gears, two spline flange shaft, two transplanting heads, driving arms；Wherein, described gearcase is mute
Bell-shaped symmetrical structure；Described gearcase is formed by fixedly connecting by the first housing and the second housing；Described sun gear
The center of gearcase it is bearing in by bearing；Have two pin shaft holes on described gearcase, be used for bearing pin is installed；
Said two breast wheel props up the left and right sides of carrying sun gear by bearing pin symmetry；Described spline flange shaft is passed through
Bearing is bearing in the outside of planetary gear；Described planetary gear is fixed in spline flange shaft；Described breast wheel with too
Sun wheel conjugation, it is achieved variable speed transmission；Described planetary gear is the most identical with the flank profil of sun gear；Described spline method
Between blue axle and gearcase, backlash eliminating machine is installed；When gearcase horizontal positioned, one of them
Backlash eliminating machine is arranged on the upper right quarter of gearcase, and another backlash eliminating machine is arranged on tooth
The lower left quarter of wheel box, two backlash eliminating machines are centrosymmetric point relative to sun gear in gearcase
Cloth；Described transplanting head is arranged in spline flange shaft；Two transplanting heads are by driving arm to connect.
Further, described transplanting head includes planting arm housing, shift fork axle, shift fork, camshaft, planting arm lid
Son, push away seedling spring, push away seedling spring base, chain link, cushion pad, pushing sprout pole, seedling pin；Wherein, plant described in
Arm lid is arranged on planting arm rear；Described seedling pin is arranged on the front portion of planting arm housing；Described cam
Axle is bearing in the bottom of planting arm housing by bearing；Described shift fork is bearing in planting arm housing by shift fork axle
In；Described shift fork matches with the cam on camshaft, and camshaft rotates a circle, it is achieved the pushing away and receiving of shift fork
Two actions；Described pushing sprout pole is located on planting arm housing, and pushing sprout pole rear end is hinged with one end of chain link,
The other end of chain link is hinged with shift fork, pushes away seedling spring base and is arranged on the other end of chain link and the hinged place of shift fork；
The described seedling spring one end that pushes away props up planting arm lid, and the other end props up and pushes away seedling spring base；Described planting arm housing
Interior installation cushion pad, for slowing down the shift fork impact to planting arm housing；Described camshaft is all solid with driving arm
Fixed connection.
Further, described transplanting head also includes powder metallurgy sleeve；Described powder metallurgy sleeve is arranged on plants
In arm housing, pushing sprout pole is located on powder metallurgy sleeve, be used for reducing pushing sprout pole and powder metallurgy sleeve it
Between friction.
Further, described backlash eliminating machine includes eliminating backlash cam, eliminating backlash pendulum
Arm axle, elimination backlash spring, elimination backlash swing arm；Wherein, described elimination backlash cam
It is fixed in spline flange shaft；One end of described elimination backlash swing arm is by eliminating backlash arm shaft
It is bearing on gearcase；Described elimination backlash spring one end props up gearcase, and the other end props up elimination tooth
In the middle part of side clearance swing arm.
Further, described backlash eliminating machine also includes eliminating backlash spring base；Described elimination tooth
Side clearance spring base is arranged on elimination backlash spring and eliminates between backlash swing arm.
The present invention, compared with background technology, has the beneficial effect that
1, the exchange of rice transplanter left and right sides transplanting mechanism gearcase housing can be realized.
2, the rotary inertia of gearcase can be increased, play the effect of flywheel, make machine run more steady.
3, peasant's stock for maintenance spare and accessory parts can be reduced, cost-effective.
Accompanying drawing explanation
Fig. 1 is the seedling-transplanting device overall side view of the present invention；
Fig. 2 is the general assembly drawing of the present invention；
Fig. 3 is the sectional view of transplanting head；
Fig. 4 is the installation diagram of rice transplanter transplanting mechanism rotary gear box；
Fig. 5 is the part drawing of the present invention；
Fig. 6 is the most conventional left gear box part drawing；
Fig. 7 is the most conventional right gear box part drawing；
In figure, gearcase 1,2, two breast wheels of sun gear, 4, two spline flanges of 3, two planetary gears
5, two transplantings 6 of axle, driving arm 7, bearing pin 8, backlash eliminating machine 9, chain cover 10, driving
Arm 11, seedling setting gate 12, first eliminate in backlash swing arm axis hole 13, first planet axle hole 14, first
Between axle hole 15, second eliminate backlash swing arm axis hole the 16, the 3rd eliminate backlash swing arm axis hole 17,
Sun gear axis hole the 18, second breast wheel axis hole the 19, second planetary gear axis hole the 20, the 4th eliminates backlash pendulum
Arm axle hole 21, left shell 22, left side eliminate backlash swing arm axis hole 23, right side elimination backlash pendulum
Arm axle hole 24, right shell the 25, first housing the 101, second housing 102, planting arm housing 601, shift fork
Axle 602, shift fork 603, camshaft 604, planting arm lid 605, push away seedling spring 606, push away seedling spring base
607, chain link 608, cushion pad 609, pushing sprout pole 610, seedling pin 611, powder metallurgy sleeve 612, elimination
Backlash cam 901, elimination backlash arm shaft 902, elimination backlash spring 903, elimination tooth
Side clearance swing arm 904, elimination backlash spring base 905.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings.
As it is shown in figure 1, the seedling-transplanting device of the present invention includes transplanting 6, gearcase 1, chain cover 10, drives arm
11, seedling setting gate 12.Power is passed to gearcase 1 by chain cover 10, has gear subsequently and drives two transplantings 6
Move and form kidney type track.Blanket appearance seedling is positioned at seedling setting gate 12, when transplanting 6 runs to seedling setting gate 12
Time, tear next seedling block from above, after by pushing sprout pole 610, rice shoot is pushed soil when running to certain position,
Complete rice transplanting action.When gearcase 1 rotates a circle, two transplantings 6 are respectively completed a seedling taking and rice transplanting
Action.
As in figure 2 it is shown, the present invention include gear box 1, sun gear 3, two planetary gears 4 of 2, two breast wheels,
5, two transplantings 6 of two spline flange shaft, driving arm 7, bearing pin 8.This mechanism is planetary gearing train structure,
X1, X2, X3 are sun wheel shaft, middle wheel shaft and planet wheel spindle respectively, and mechanism arranges along X1 axial symmetry.
Gearcase is divided into two gearcase housings to be the first housing 101 and the second housing 102 respectively along Y-axis, between the two by
Screw is fixed；The stretching screw that gearcase the second housing 102 is put into by stretching screw hole and output shaft are locked to one
Rise, thus power is sent on gearcase 1, make gearcase 1 realize around X1 axle and rotate；Sun gear 2 is by certainly
The dental inlay of body links with chain cover housing so that it is static relative to chain cover 10；Breast wheel 3 by bearing pin 8 realize around
The rotary motion of X2 axle, and it is conjugated transmission with sun gear 2；Breast wheel 3 is conjugated transmission, center with planetary gear 4 again
Away from identical, therefore planetary gear 4 is identical with sun gear 2 flank profil；Spline flange shaft 5 is by bearing and gearcase 1 shell
Axis hole in body forms revolute pair together, and plays axial positioning action with jump ring；Transplanting 6 by screw with
Spline flange shaft 5 is being fixed together, it is achieved rotate together about X3 axle with spline flange shaft 5；
Relativeness within transplanting head is as shown in Figure 3.Including planting arm housing 601, shift fork axle 602, dial
Fork 603, camshaft 604, planting arm lid 605, push away seedling spring 606, push away seedling spring base 607, chain link
608, cushion pad 609, pushing sprout pole 610, seedling pin 611.Wherein planting arm lid 605 is arranged on planting arm shell
Body 601 rear portion；Seedling pin 611 is arranged on the front portion of planting arm housing 601；Camshaft 604 is propped up by bearing
Hold the bottom at planting arm housing 601；Shift fork 603 is bearing in planting arm housing 601 by shift fork axle 602
In；Seedling pin 611 is located on planting arm housing 601, and pushing sprout pole 610 rear end is hinged with one end of chain link 608,
The other end of chain link 608 is hinged with shift fork 603, pushes away seedling spring base 607 and is arranged on the other end of link 608
With the hinged place of shift fork 603, between shift fork 603, chain link 608, pushing sprout pole 610 three, form crank block
Mechanism；Pushing away seedling spring 606 one end and prop up planting arm lid 605, the other end props up and pushes away seedling spring base 607；Plant
In planting arm housing 601, cushion pad 609 is installed, for slowing down the shift fork 603 impact to planting arm housing 601；
Camshaft 604 in two transplantings 6 is fixed together, therefore relative to gearcase 1 by driving arm 11
Static, and transplanting 6 is connected in spline flange shaft 5, therefore transplanting 6 is transported relative to camshaft 604
Dynamic；Shift fork 603 matches with the cam on camshaft 604, and camshaft 604 rotates a circle, it is achieved shift fork
603 push away and receive two actions, thus drive pushing sprout pole 610 pull-up and loosen two states.Transplanting 6 is also
Including powder metallurgy sleeve 612；Described powder metallurgy sleeve 612 is arranged in planting arm housing 601, pushes away seedling
Bar 610 is located on powder metallurgy sleeve 612, is used for reducing pushing sprout pole 610 and powder metallurgy sleeve 612
Between friction.
Trans-planter separate inserts the mounted inside figure of organization gear box as shown in Figure 4, and described backlash eliminates machine
Structure 9 includes eliminating backlash cam 901, eliminating backlash arm shaft 902, elimination backlash spring
903, backlash swing arm 904 is eliminated；Formed between its 5 gears epicyclic train transmission knot
Structure is in previously described, when planetary gear 4 rotates, eliminates backlash cam 901 by spline flange shaft 5
It is fixed together with planetary gear 4, rotates together in company with it；Eliminate backlash swing arm 904 by eliminating tooth
Side clearance arm shaft 902 links together with gearcase 1；Eliminate backlash spring 903 one end and prop up tooth
Wheel box 1, the other end props up on elimination backlash spring base 905, and acts on elimination backlash swing arm
The middle part of 904.Eliminate backlash swing arm 904 by eliminating backlash spring base 905 and eliminating between flank
The common effect of gap spring 903 so that it is contact with eliminating flank backlash cam 901；When eliminating flank
Gap cam 901 is when elimination backlash swing arm 904 rotates, and both directly contact, and eliminate flank
Gap cam 901 is subject to from eliminating backlash spring 903 with by elimination backlash swing arm 904
Active force, thus be delivered on planetary gear 4 by spline flange shaft 5, thus eliminate planetary gear 4 with middle
The backlash of wheel 3.
As it is shown in figure 5, the dumbbell shape gearcase housing of the present invention includes the first elimination backlash swing arm axis hole
13, first planet axle hole the 14, first breast wheel axis hole 15, second eliminate backlash swing arm axis hole 16,
3rd eliminates backlash swing arm axis hole 17, sun gear axis hole the 18, second breast wheel axis hole the 19, second planet
Axle hole the 20, the 4th eliminates backlash swing arm axis hole 21.The gearcase of the present invention becomes dumbbell shape, Qi Zhongtai
Sun axle hole 18 is positioned at the center of rotation of housing, first planet axle hole the 14, first breast wheel axis hole 15,
Sun gear axis hole the 18, second breast wheel axis hole the 19, second planetary gear axis hole 20 is point-blank by a left side extremely
Right side equidistant placement successively, and first planet axle hole the 14, first breast wheel axis hole 15 and the second middle wheel shaft
Hole the 19, second planetary gear axis hole 20 is arranged axisymmetricly relative to the vertical center line of sun gear axis hole 18.
First eliminates backlash swing arm axis hole 13 is positioned in first planet axle hole 14 and the second planetary gear axis hole 20
Between bottom and first planet axle hole 14 and the first breast wheel axis hole 15 of heart line.Second eliminates flank
Gap swing arm axis hole 16 and first eliminates the backlash swing arm axis hole 13 level relative to sun gear axis hole 18
Centrage is arranged axisymmetricly.3rd eliminates backlash swing arm axis hole 17 and the 4th eliminates backlash swing arm
Axis hole 21 eliminates backlash swing arm axis hole 13 with first and the second elimination backlash swing arm axis hole 16 is relative
Vertical center line in sun gear axis hole 18 is arranged axisymmetricly.
Traditional transplanting mechanism gearcase housing is as shown in Figure 6 and Figure 7.It has dividing of left and right, and left side
Housing 22 and right shell 25 are mirrored into relation.The elimination backlash swing arm in left side is installed on left shell
On elimination backlash swing arm axis hole 23 on, the elimination backlash swing arm on right side is installed on right shell
Elimination backlash swing arm axis hole 24 on.And the present invention can eliminate the difference of this left and right gearcase,
During transplanting mechanism on the left of installation, eliminate backlash swing arm be arranged on elimination backlash swing arm axis hole (16,
21) in, and during transplanting mechanism on the right side of installing, eliminations backlash swing arm is arranged on and eliminates between flank
In gap swing arm axis hole (13,17).
Claims (5)
1. a rice transplanter transplanting mechanism, be installed with at the two ends, output shaft left and right of rice transplanter transmission case a left side,
Right transplanting mechanism, described left and right transplanting mechanism symmetrical configuration, it is characterised in that described right transplanting mechanism bag
Include gearcase (1), sun gear (2), two breast wheels (3), two planetary gears (4), two spline methods
Blue axle (5), two transplanting heads (6), drivings arm (7) etc.；Wherein, described gearcase (1) is dumbbell
Shape symmetrical structure；Described gearcase (1) is connected by the first housing (101) and the second housing (102) are fixing
Form；Described sun gear (2) is bearing in the center of gearcase (1) by bearing；Described gearcase (1)
On have two pin shaft holes, be used for bearing pin (8) is installed；Said two breast wheel (3) passes through bearing pin (8)
The left and right sides of symmetrical carrying sun gear (2)；Described spline flange shaft (5) is expert at by bearing supporting
The outside of star-wheel (4)；Described planetary gear (4) is fixed in spline flange shaft (5)；Described breast wheel (3)
It is conjugated with sun gear (1), it is achieved variable speed transmission；Described planetary gear (4) and the flank profil of sun gear (2)
The most identical；Between described spline flange shaft (5) and gearcase (1), backlash eliminating machine (9) is installed；
When gearcase (1) horizontal positioned, one of them backlash eliminating machine (9) is arranged on gearcase (1)
Upper right quarter, another backlash eliminating machine (9) is arranged on the lower left quarter of gearcase (1), two
Backlash eliminating machine (9) is centrosymmetric distribution relative to sun gear (2) in gearcase (1)；
Described transplanting head (6) is arranged in spline flange shaft (5)；Two transplanting heads (6) are by driving arm (7)
Connect.
Rice transplanter transplanting mechanism the most according to claim 1, it is characterised in that described transplanting head (6)
Including planting arm housing (601), shift fork axle (602), shift fork (603), camshaft (604), planting arm
Lid (605), push away seedling spring (606), push away seedling spring base (607), chain link (608), cushion pad (609),
Pushing sprout pole (610), seedling pin (611)；Wherein, described planting arm lid (605) is arranged on planting arm housing
(601) rear portion；Described seedling pin (611) is arranged on the front portion of planting arm housing (601)；Described camshaft
(604) bottom of planting arm housing (601) it is bearing in by bearing；Described shift fork (603) passes through shift fork
Axle (602) is bearing in planting arm housing (601)；On described shift fork (603) and camshaft (604)
Cam match, camshaft (604) rotates a circle, it is achieved shift fork (603) push away and receive two actions；
Described pushing sprout pole (610) is located on planting arm housing (601), pushing sprout pole (610) rear end and chain link (608)
One end hinged, the other end of chain link (608) is hinged with shift fork (603), pushes away seedling spring base (607) and sets
Put the hinged place of the other end at chain link (608) and shift fork (603)；Described push away seedling spring (606) one end
Propping up planting arm lid (605), the other end props up and pushes away seedling spring base (607)；Described planting arm housing (601)
Interior installation cushion pad (609), is used for the impact slowing down shift fork (603) to planting arm housing (601)；Institute
State camshaft (604) all with drive that arm (7) is fixing to be connected.
Rice transplanter transplanting mechanism the most according to claim 2, it is characterised in that described transplanting head (6)
Also include powder metallurgy sleeve (612)；Described powder metallurgy sleeve (612) is arranged on planting arm housing (601)
In, pushing sprout pole (610) is located on powder metallurgy sleeve (612), be used for reducing pushing sprout pole (610) with
Friction between powder metallurgy sleeve (612).
Rice transplanter transplanting mechanism the most according to claim 1, it is characterized in that, described backlash disappears
Except mechanism (9) includes eliminating backlash cam (901), eliminating backlash arm shaft (902), elimination
Backlash spring (903), elimination backlash swing arm (904)；Wherein, described elimination backlash is convex
Wheel (901) is fixed in spline flange shaft (5)；One end of described elimination backlash swing arm (904) leads to
Cross elimination backlash arm shaft (902) to be bearing on gearcase (1)；Described elimination backlash spring
(903) one end props up gearcase (1), and the other end props up elimination backlash swing arm (904) middle part.
Rice transplanter transplanting mechanism the most according to claim 1, it is characterized in that, described backlash disappears
Also include except mechanism (9) eliminating backlash spring base (905)；Described elimination backlash spring base (905)
It is arranged on elimination backlash spring (903) and eliminates between backlash swing arm (904).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610252112.5A CN105830604B (en) | 2016-04-20 | 2016-04-20 | Rice transplanter transplanting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610252112.5A CN105830604B (en) | 2016-04-20 | 2016-04-20 | Rice transplanter transplanting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105830604A true CN105830604A (en) | 2016-08-10 |
| CN105830604B CN105830604B (en) | 2018-03-16 |
Family
ID=56588782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610252112.5A Active CN105830604B (en) | 2016-04-20 | 2016-04-20 | Rice transplanter transplanting mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN105830604B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612804A (en) * | 2016-12-23 | 2017-05-10 | 浙江理工大学 | Non-circular gear rotary transplanting mechanism based on gaussian function |
| CN109601081A (en) * | 2019-01-21 | 2019-04-12 | 东北农业大学 | A kind of seedling-transplanting device |
| CN109601080A (en) * | 2019-01-21 | 2019-04-12 | 东北农业大学 | A kind of seedling-transplanting device |
| CN111630991A (en) * | 2020-06-22 | 2020-09-08 | 浙江星莱和农业装备有限公司 | Seedling root precision fertilizing device and using method thereof |
| CN112189417A (en) * | 2020-09-22 | 2021-01-08 | 农业农村部南京农业机械化研究所 | Non-uniform-speed-transmission rice big seedling planting mechanism and planting device |
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| CN102090195A (en) * | 2010-12-23 | 2011-06-15 | 浙江理工大学 | Slippage-type separated-transplantation mechanism of wide and narrow row transplanter |
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| CN203378250U (en) * | 2013-07-24 | 2014-01-08 | 浙江理工大学 | Two-stage conjugate non-conical bevel gear wide and narrow row spacing transplanting mechanism of high-speed transplanter |
| JP2015039301A (en) * | 2013-08-20 | 2015-03-02 | ヤンマー株式会社 | Rice transplanter |
| CN204762089U (en) * | 2015-07-01 | 2015-11-18 | 浙江理工大学 | Mechanism is transplanted to non - circle of seven teeth - incomplete non -circular gear planetary system rice alms bowl seedling |
| CN205648397U (en) * | 2016-04-20 | 2016-10-19 | 浙江理工大学 | Mechanism is inserted to transplanter branch |
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| CN102090195A (en) * | 2010-12-23 | 2011-06-15 | 浙江理工大学 | Slippage-type separated-transplantation mechanism of wide and narrow row transplanter |
| CN202121946U (en) * | 2011-06-16 | 2012-01-25 | 浙江理工大学 | Deformation eccentric circular and noncircular gear rotary transplanting mechanism of riding type transplanter |
| 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 (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612804A (en) * | 2016-12-23 | 2017-05-10 | 浙江理工大学 | Non-circular gear rotary transplanting mechanism based on gaussian function |
| CN109601081A (en) * | 2019-01-21 | 2019-04-12 | 东北农业大学 | A kind of seedling-transplanting device |
| CN109601080A (en) * | 2019-01-21 | 2019-04-12 | 东北农业大学 | A kind of seedling-transplanting device |
| CN111630991A (en) * | 2020-06-22 | 2020-09-08 | 浙江星莱和农业装备有限公司 | Seedling root precision fertilizing device and using method thereof |
| CN111630991B (en) * | 2020-06-22 | 2021-07-09 | 浙江星莱和农业装备有限公司 | Seedling root precision fertilizing device and using method thereof |
| CN112189417A (en) * | 2020-09-22 | 2021-01-08 | 农业农村部南京农业机械化研究所 | Non-uniform-speed-transmission rice big seedling planting mechanism and planting device |
| CN112189417B (en) * | 2020-09-22 | 2021-10-01 | 农业农村部南京农业机械化研究所 | Rice big seedling planting device |
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| Publication number | Publication date |
|---|---|
| CN105830604B (en) | 2018-03-16 |
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