WO2008049306A1 - Mécanisme tournant de transplantation de semis - Google Patents

Mécanisme tournant de transplantation de semis Download PDF

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Publication number
WO2008049306A1
WO2008049306A1 PCT/CN2007/002512 CN2007002512W WO2008049306A1 WO 2008049306 A1 WO2008049306 A1 WO 2008049306A1 CN 2007002512 W CN2007002512 W CN 2007002512W WO 2008049306 A1 WO2008049306 A1 WO 2008049306A1
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WO
WIPO (PCT)
Prior art keywords
gears
gear
sprocket
fixed
shaft
Prior art date
Application number
PCT/CN2007/002512
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English (en)
Chinese (zh)
Inventor
Yun Zhao
Gaohong Yu
Chuanyu Wu
Liang Sun
Xiong Zhao
Ge Li
Original Assignee
Zhejiang Sci-Tech University
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Filing date
Publication date
Application filed by Zhejiang Sci-Tech University filed Critical Zhejiang Sci-Tech University
Publication of WO2008049306A1 publication Critical patent/WO2008049306A1/fr

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Classifications

    • 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

Definitions

  • the present invention relates to agricultural machinery, and more particularly to a rotary add/drop mechanism of a walking type rice transplanter. Background technique
  • crank-and-swing type plug-in mechanism can change the relative movement track of the claw by changing the center of the crank rotation and the swing center position of the rocker, and when the relative movement track is "waist shape", it is used for the rider; when it is relatively moved When the track is "dolphin shape", it is used for the walking transplanter.
  • the rotary add/drop mechanism is a slewing gear box provided with a fixing member and rotatably supported around the central axis with respect to the fixing member, and is axially centered on a first axis parallel to the central axis and is opposite to the aforementioned slewing gear a relatively rotating support shaft of the cartridge, a pawl support body integrally rotating with respect to the slewing gear cartridge and the support shaft, a pawl provided on the pawl support body, and a rotary motion of each of the slewing gearboxes converted into the aforementioned pawl
  • the above-mentioned planting apparatus has been disclosed in the prior art, for example, in the patent of the Chinese Patent Publication No. CN87103763.
  • the central axis, the first support shaft, and the axis of the planetary shaft are arranged in a line.
  • the relative movement trajectory of the claws of the rotary add-and-drop mechanism is "waist-shaped", which is mainly used for the rider. If it is used in a walking transplanter, the hole in the planting pit is too large, which is easy to cause drips and squats. This is explained in detail later.
  • the rotary add/drop mechanism has the advantages of small inertia force, small vibration and good stability compared with the crank rocker type insertion and insertion mechanism. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a rotary add/drop mechanism suitable for a walking type rice transplanter, which has a relatively small structural size and a small vibration.
  • the technical solution adopted by the present invention is: It includes a transmission portion And the planting arm component; the transmission component is provided with a driving sprocket on the transmission shaft in the sprocket box, and the chain is connected with a central sprocket mounted on the central shaft of the sprocket box, and the central axis extends outside the sprocket box
  • the left and right shaft ends are respectively fixed with left and right gear boxes; the left and right central gears of the left and right gear boxes are respectively equipped with left and right center gears fixed to the sprocket box by left and right flanges respectively
  • the left and right center gears are respectively engaged with the left and right first intermediate gears fixed on the left and right intermediate shafts to drive the left and right second intermediate gears coaxial with the left and right first intermediate gears, and are
  • the left and right planetary gears are round gears
  • the left and right second intermediate gears are the same round gears as the left and right planetary gears
  • the left and right first intermediate gears and the left and right central gears It is an eccentric or non-circular gear with the same geometrical parameters of the gear.
  • the present invention can also adopt the following technical solutions: It comprises a transmission component and a planting arm component; the transmission component is provided with a driving sprocket on a transmission shaft in the sprocket box, which is attached to the chain
  • the central sprocket on the central axis of the sprocket box is connected, and the left and right shaft ends of the left and right sides of the center shaft extending outside the sprocket box are respectively fixed with left and right gear boxes; the central axis in the left and right gear boxes
  • the left and right center gears are respectively fixed on the sprocket box by the left and right flanges; the left and right center gears are respectively driven by the left and right first intermediate gears fixed on the left and right intermediate shafts respectively.
  • Left and right planet wheels fixed on the left and right planet shafts, left and right planet shafts extending to the left and right gear boxes are fixed with left and right planting arm members at one end; left and right gear boxes in the left
  • the right central gear, the left and right first intermediate gears, and the relative positions of the three-axis axes of the left and right planetary triax gear planetary systems are arranged in a triangle.
  • the left and right planetary gears are eccentric or non-circular gears
  • the left and right planetary gears, the left and right first intermediate gears, and the left and right central gears are non-spherical gears whose gear geometric parameters are identical.
  • the left and right planting arm members are all of a straight arm type structure, that is, the action point of the fork to the push rod and the action point of the cam are in the same transverse section of the fork shaft.
  • the left and right planting arm members are each fixed with a claw composed of two angled steel fingers, the lower part of the finger is a sharp blade shape, and the inner side between the two fingers is smooth.
  • the center gear is fixed, the center sprocket drives the gear box to rotate, and the planetary gear drives the end of the planetary shaft.
  • a planting arm rotates non-uniformly with respect to the gear box, and the absolute movement of the planting arm is a synthetic movement of the planetary wheel relative to the non-uniform rotation of the gear box and the circular motion of the gear box about the central axis. Under the influence of this synthetic motion, the pawl in the planting arm component satisfies the requirements of the pawl angle at the time of picking up and the pawl angle at the time of insertion.
  • the beneficial effects of the present invention are: (1) there is only one set of planetary gears in the gear box relative to the sun gear, and (2) the relative positions of the three-axis axes of the gear planetary system are arranged in a triangle. (3) The gear box turns one turn, and drives one planting arm to realize the insertion of one hole. It is suitable for the transplanting frequency when the walking transplanter works, and the planting pit becomes the smallest, which is good for standing, reducing the drifting rate and the lodging rate; (4) If the gear box speed is increased, it can also be used on the high-speed rice transplanter; (5) The claws composed of two angle-shaped fingers are used, and the bottom of the rank finger is sharp blade shape, which can reduce the time when the claws are taken. The frictional resistance between the soil, the inner side between the two fingers is smooth, not easy to be scarred; the structure is simple, the volume is small, the weight is light, the vibration is small, and the manufacturing cost is also low.
  • Figure 1 is a schematic view of the mechanism of the present invention
  • Figure 2 is a structural assembly view of the present invention
  • Figure 3 is a cross-sectional view taken along line B-B of Figure 2;
  • Figure 4 is a schematic view showing the transmission principle of the elliptical gear-elliptical gear-circular gear of the present invention in which the three-axis axial center is arranged in a triangle;
  • Fig. 5 is a schematic view showing the transmission principle of the "elliptical gear-elliptical gear-elliptical gear" of the present invention in which the three-axis axis is arranged in a triangle shape.
  • Figure 6 is a three-dimensional schematic view of the jaw shape of the present invention.
  • Fig. 7 is a schematic view showing the movement trajectory of the tip of the claw of the present invention.
  • Fig. 8 is a schematic view showing the movement trajectory of the tip of the claw of the conventional rotary add/drop mechanism.
  • Figure 1-5 1. Center shaft, 2 '. Left flange, 2. Right flange, 3. Center sprocket, 4. Sprocket box, 5 '. Left gear box, 5. Right gear box, 6 'Left planet wheel, 6. Right planet wheel, '. Left planet axle, 7. Right planet axle, 8 '. Left planting arm component, 8. Right planting arm component, 9 '. Left fork, 9. Right Fork, 10 '. Left cam, 10. Right cam, 11'. Left second intermediate gear, 11. Right second intermediate gear, 12'. Left intermediate shaft, 12. Right intermediate shaft, 13'. Left first Intermediate gear, 13. Right first intermediate gear, 14 '. Left center gear, 14. Right center gear, 15. Claw, 16. Push rod, 17. Drive shaft, 18. drive sprocket, 19. chain, 20. push spring, 21. cushion. detailed description
  • the rotary add/drop mechanism of the walking type rice transplanter of the present invention comprises a transmission member and a planting arm member.
  • the transmission member includes a drive sprocket 18 on the drive shaft 17 in the sprocket case 4, and is connected via a chain 19 to a center sprocket 3 mounted on the central shaft 1 in the sprocket case 4, and the center shaft 1 extends out of the sprocket case
  • the left and right side shaft ends of the outer left and right sides are respectively fixed with left and right gear boxes 5', 5.
  • the central shaft 1 in the left and right gear boxes 5', 5 are respectively provided with left and right center gears 14', 14 fixed to the sprocket case 4 through the left and right flanges 2', 2, respectively.
  • the right sun gears 14', 14 are respectively fixed by the left and right first intermediate gears 13', 13 and the left and right second intermediate gears 11', 11 fixed on the left and right intermediate shafts 12', 12, respectively.
  • the left and right planet wheels 6', 6 on the left and right planet shafts 7', 7 and the left and right planet shafts 7', 7 extend to the left and right gear boxes 5', 5 respectively.
  • the relative positions of the ', 11 and the left and right planet wheels 6', 6 triaxial gear planetary systems are arranged in a triangle.
  • the left and right planet gears 6', 6 are round-spindle gears, and the left and right second intermediate gears 11', 11 are identical in geometry to the left and right planet gears 6', 6 gears.
  • the round gear, the left and right first intermediate gears 13', 13 and the left and right sun gears 14', 14 are eccentric or non-circular gears having identical gear geometrical parameters.
  • the left and right planetary gears 6', 6 can also adopt an eccentric circular gear or a non-circular gear.
  • the left and right first intermediate gears 13', 13 are directly connected with the left and right planetary gears 6'.
  • 6 meshing, left and right second intermediate gears 11 ', 11 can be omitted.
  • the left and right planet gears 6', 6, the left and right first intermediate gears 13', 13 and the left and right sun gears 14', 14 are non-spherical gear transmissions having identical gear geometry parameters.
  • the left and right sun gears in the left and right gear boxes, the left and right first intermediate gears, and the relative positions of the three-axis axes of the left and right planetary gear triax gear planetary systems are arranged in a triangle.
  • the relative positions of the central axis 1, the left and right intermediate shafts 12', 12, and the left and right planetary shafts 7', 7 are axially arranged.
  • the left and right planting arm members 8', 8 are all straight arm type structures, that is, the point of action of the fork to the push rod and the point of action on the cam are in the same transverse section of the fork shaft.
  • the right planting arm member 8 As shown in FIG. 3, taking the right planting arm member 8 as an example, it is equipped with a pushing device, including: a right cam 10, a right shifting fork 9, a push spring 20, a cushion 21, a pawl 15, and a push rod 16 .
  • the right cam 10 is fixedly coupled to the right gear case 5.
  • the bottom P1 of the angled steel finger has a sharp blade shape, and the inner side P2 between the two fingers is smooth.
  • the figure is a schematic diagram of the movement trajectory of the tip of the claw of the present invention, where ⁇ is the trajectory of the cusp tip, that is, the trajectory when the machine is not walking, b is the trajectory, that is, the trajectory of the machine when walking, c is the seedling, d is Horizon, e is the claw, s is the pit width.
  • the schematic diagram of the movement trajectory of the claw tip portion of the conventional rotary type insertion and insertion mechanism has its central axis, the first support shaft and the axis of the planetary shaft arranged in a straight line, and ⁇ ' is the static trajectory of the tip of the claw, b' For the trajectory, c is the seedling, d is the horizon, e is the claw, and s' is the width of the pit.
  • the present invention makes the planting pit small, and s is about one third of s'.
  • the working principle of the invention is that the power of the add-in mechanism is transmitted by the chain sprocket of the sprocket of the rice transplanter to the central sprocket through the chain, the central axis of the drive rotates, and the left and right gear boxes are rotated, and at the same time, the left and right gears are rotated.
  • the fixed fixed center gear drives the planetary gear through the intermediate gear.
  • the planting arm moves, and the shifting fork swings around the fixed cam. Before the picking, the fork passes through the cam.
  • the movement of the planting arm member is a combined movement of the planetary gears with the unequal speed of the planetary shaft relative to the gearbox and the circular motion of the gearbox about the central axis.
  • the gear box rotates once, and the transplanting frequency of the planting arm and the "dolphin" track are suitable for the working requirements of the walking rice transplanter.

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Transplanting Machines (AREA)

Abstract

L'invention porte sur le mécanisme tournant de transplantation d'un transplanteur ambulant de semis. Une roue dentée centrale (3) entraîne des boîtes d'engrenages gauches/droites (5, 5') fixées aux deux extrémités d'un arbre central (1). Un engrenage central fixe (14, 14'), entraînant des planétaires (6, 6') fixés à un arbre planétaire (7, 7') par des trains intermédiaires (11, 11', 13, 13') et les engrenages planétaires, tourne à une vitesse inégale relativement aux boîtes d'engrenages. Un bras de repiquage (8, 8') est fixé à une extrémité d'un arbre de planétaire à l'extérieur de ladite boîte d'engrenages. Son mouvement absolu est un mouvement synthétique entraînant une vitesse inégale de rotation des engrenages planétaires relativement à une boîte d'engrenages, et un mouvement circonférentiel de la boîte d'engrenages relativement à l'arbre. La boîte d'engrenages est entraînée en rotation en un cycle, et actionne les bras de repiquage un à un. Ladite invention est donc adaptée à la fréquence de travail du transplanteur ambulant. Selon une vue latérale les axes A, B, C du train planétaire forment les angles aigus d'un triangle. En optimisant des paramètres de la structure, les griffes des bras de repiquage peuvent se déplacer sur une course chemin qui permet de retirer les semis des griffes. L'angle de repiquage et la course relative permettent des trous de repiquage étroits tout en réduisant la chute et la flottaison des semis.
PCT/CN2007/002512 2006-10-26 2007-08-20 Mécanisme tournant de transplantation de semis WO2008049306A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610053982.6 2006-10-26
CNA2006100539826A CN1943299A (zh) 2006-10-26 2006-10-26 步行式插秧机的旋转式分插机构

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WO2008049306A1 true WO2008049306A1 (fr) 2008-05-02

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WO (1) WO2008049306A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103348807A (zh) * 2013-07-12 2013-10-16 东北农业大学 羊角式行星轮系栽植机构
CN115812398A (zh) * 2022-12-07 2023-03-21 浙江理工大学 斜向大位移小穴口双行星架式覆膜甘薯移栽机的设计方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1943299A (zh) * 2006-10-26 2007-04-11 浙江理工大学 步行式插秧机的旋转式分插机构
CN102037813B (zh) * 2010-10-09 2012-05-16 东北农业大学 双轴锥齿轮传动斜置式宽窄行插秧机分插机构
CN101828456B (zh) * 2010-04-09 2011-09-21 浙江理工大学 齿轮驱动倾斜式宽窄行插秧机分插机构
CN102037814B (zh) * 2010-10-09 2012-05-23 东北农业大学 单轴锥齿轮传动斜置式宽窄行插秧机分插机构
CN101861773B (zh) * 2010-06-04 2011-08-31 浙江理工大学 行星轮轴交错的椭圆斜齿轮传动分插机构
CN102090195B (zh) * 2010-12-23 2012-04-18 浙江理工大学 滑移式宽窄行插秧机分插机构
CN102282947B (zh) * 2011-07-19 2013-02-13 浙江理工大学 高速插秧机椭圆锥齿轮—圆柱齿轮宽窄行分插机构
CN102640607A (zh) * 2012-04-27 2012-08-22 浙江理工大学 步行式插秧机椭圆锥齿轮混合传动宽窄行分插机构
CN113016295B (zh) * 2021-03-01 2022-02-22 中国农业大学 一种水稻秧苗浅植摆栽方法及秧爪缩回式栽植臂
CN115336454B (zh) * 2022-08-09 2024-04-05 农业农村部南京农业机械化研究所 一种二次异形非圆齿轮传动的甘薯移栽机构

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Publication number Priority date Publication date Assignee Title
JPH05146207A (ja) * 1992-04-28 1993-06-15 Mitsubishi Agricult Mach Co Ltd 田植機の苗分割爪
JPH1098924A (ja) * 1996-09-27 1998-04-21 Iseki & Co Ltd 苗植付装置
JP2002354909A (ja) * 2001-05-31 2002-12-10 Yanmar Agricult Equip Co Ltd 苗の移植装置
CN1442035A (zh) * 2003-04-09 2003-09-17 浙江工程学院 圆柱齿椭圆齿行星系分插机构
CN2612218Y (zh) * 2003-04-09 2004-04-21 浙江工程学院 圆盘式混合齿行星系分插机构
CN1943299A (zh) * 2006-10-26 2007-04-11 浙江理工大学 步行式插秧机的旋转式分插机构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05146207A (ja) * 1992-04-28 1993-06-15 Mitsubishi Agricult Mach Co Ltd 田植機の苗分割爪
JPH1098924A (ja) * 1996-09-27 1998-04-21 Iseki & Co Ltd 苗植付装置
JP2002354909A (ja) * 2001-05-31 2002-12-10 Yanmar Agricult Equip Co Ltd 苗の移植装置
CN1442035A (zh) * 2003-04-09 2003-09-17 浙江工程学院 圆柱齿椭圆齿行星系分插机构
CN2612218Y (zh) * 2003-04-09 2004-04-21 浙江工程学院 圆盘式混合齿行星系分插机构
CN1943299A (zh) * 2006-10-26 2007-04-11 浙江理工大学 步行式插秧机的旋转式分插机构

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103348807A (zh) * 2013-07-12 2013-10-16 东北农业大学 羊角式行星轮系栽植机构
CN115812398A (zh) * 2022-12-07 2023-03-21 浙江理工大学 斜向大位移小穴口双行星架式覆膜甘薯移栽机的设计方法

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