CN114467431A - Single-arm rice pot seedling transplanting mechanism - Google Patents

Single-arm rice pot seedling transplanting mechanism Download PDF

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Publication number
CN114467431A
CN114467431A CN202210047470.8A CN202210047470A CN114467431A CN 114467431 A CN114467431 A CN 114467431A CN 202210047470 A CN202210047470 A CN 202210047470A CN 114467431 A CN114467431 A CN 114467431A
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China
Prior art keywords
circular
planet
chain wheel
wheel
driven
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CN202210047470.8A
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Chinese (zh)
Inventor
周脉乐
张延�
赵湛
尹建军
杨佳佳
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Jiangsu University
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Jiangsu University
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Priority to CN202210047470.8A priority Critical patent/CN114467431A/en
Publication of CN114467431A publication Critical patent/CN114467431A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C11/00Transplanting machines
    • A01C11/003Transplanting machines for aquatic plants; for planting underwater, e.g. rice
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C11/00Transplanting machines
    • A01C11/006Other parts or details or planting machines
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C11/00Transplanting machines
    • A01C11/02Transplanting machines for seedlings
    • A01C11/025Transplanting machines using seedling trays; Devices for removing the seedlings from the trays

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

Abstract

The invention discloses a single-arm rice pot seedling transplanting mechanism, which relates to the field of agricultural machinery and comprises a driving system II, wherein three driven sprockets are arranged in the driving system II, a driving sprocket transmits power to a driven sprocket through chain transmission, the driven sprocket in the middle is fixedly connected with a driven shaft, the driven sprockets at two ends are fixedly connected with a non-circular sun wheel, and the non-circular sun wheel is matched with a non-circular planet wheel; the planet carrier is fixedly connected with the driven shaft, one end of the planet shaft is fixedly connected with the non-circular planet wheel, and the other end of the planet shaft is fixedly connected with a transplanting arm; wherein the non-circular sun wheel and the planet carrier rotate in the same direction at a differential speed, and the differential speed transmission ratio is 2: 1. The invention uses the non-circular sun gear and the planet carrier as the prime mover, and the transplanting arm can complete the transplanting track and posture of the pot seedlings through the unequal-speed transmission of the single-stage non-circular gear pair, thereby being suitable for the mechanized transplanting of the small seedlings and the rice pot seedlings with small plant spacing.

Description

Single-arm rice pot seedling transplanting mechanism
Technical Field
The invention relates to the field of agricultural machinery, in particular to a single-arm transplanting mechanism for rice pot seedlings.
Background
The rice occupies an important position in the grain production in China, and the transplanting of rice pot seedlings has the advantages of no root damage, quick green return and the like, and has important significance for improving the yield per unit and the planting and popularization of super rice. The rice pot seedling transplanting mechanism is a core working component of a transplanter and needs to complete actions of seedling taking, conveying, planting and the like. The existing rice pot seedling transplanting mechanism mostly adopts a single-degree-of-freedom K-H-V type non-circular gear planetary gear train, two stages of unequal-speed transmission ratios are mutually restricted, the problem of backlash accumulation exists, and the transplanting track and posture cannot be accurately realized.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a single-arm rice pot seedling transplanting mechanism, which takes a non-circular sun gear and a planet carrier as driving components, can enable transplanting arms to complete rice pot seedling transplanting tracks and postures through unequal-speed transmission of a single-stage non-circular gear pair, and is suitable for mechanized transplanting of small seedlings and rice pot seedlings with small plant spacing.
The present invention achieves the above-described object by the following technical means.
A single-arm rice pot seedling transplanting mechanism comprises a driving system II, wherein three driven sprockets are arranged in the driving system II, a driving sprocket is used for transmitting power to driven sprockets through chain transmission, the driven sprocket in the middle is fixedly connected with a driven shaft, the driven sprockets at two ends are fixedly connected with a non-circular sun wheel, and the non-circular sun wheel is matched with a non-circular planet wheel; the planet carrier is fixedly connected with the driven shaft, one end of the planet shaft is fixedly connected with the non-circular planet wheel, and the other end of the planet shaft is fixedly connected with a transplanting arm; wherein the non-circular sun wheel and the planet carrier rotate in the same direction at a differential speed, and the differential speed transmission ratio is 2: 1.
In the above scheme, the non-circular sun gear and the non-circular planet gear form a pair of non-circular gear pairs conjugated with each other, and the average transmission ratio is 1: 1.
In the above scheme, the non-circular sun gear and the non-circular planet gear are bezier gears.
In the scheme, the driving system II comprises a driving shaft, a first driving chain wheel, a second driving chain wheel, a third driving chain wheel, a first transmission chain, a second transmission chain, a third transmission chain, a driven shaft, a first driven chain wheel, a second driven chain wheel and a third driven chain wheel; the driving shaft is provided with a driving chain wheel I, a driving chain wheel II and a driving chain wheel III, wherein the driving chain wheel I transmits power to a driven chain wheel III through a transmission chain wheel I; the driving chain wheel II transmits power to the driven chain wheel II through a transmission chain II; and the driving chain wheel III transmits power to the driven chain wheel III through a transmission chain III.
In the above scheme, a transmission ratio of the first driving sprocket to the first driven sprocket is 1: 2, the transmission ratio of the driving chain wheel II to the driven chain wheel II is 1:1, the transmission ratio of the driving chain wheel III to the driven chain wheel III is 1: 2.
in the scheme, a differential non-circular gear train I is formed by a non-circular sun gear I, a planet carrier I, a planet shaft I, a non-circular planet gear I and a transplanting arm; the first noncircular sun wheel is matched with the first noncircular planet wheel, one end of the first planet shaft is fixed on the first noncircular planet wheel, and the other end of the first planet shaft is fixedly connected with the first transplanting arm.
In the scheme, a differential non-circular gear train III is composed of a non-circular sun gear II, a planet carrier II, a planet shaft II, a non-circular planet gear II and a transplanting arm; and one end of the planet shaft II is fixed on the non-circular planet wheel II, and the other end of the planet shaft II is fixedly connected with the transplanting arm II.
In the scheme, the non-circular sun wheel and the planet carrier are respectively hinged on the frame of the transplanter.
Has the advantages that:
1. according to the invention, by designing the single-arm rice pot seedling transplanting mechanism, differential rotation of the non-circular sun gear and the planet carrier and unequal-speed transmission of the non-circular gear pair are adopted, so that transplanting reappears rice pot seedling transplanting tracks and postures, the mechanism can be used as a front-inserting type rice pot seedling transplanting component and a rear-inserting type rice pot seedling transplanting component, mutual restriction and side gap accumulation of multi-stage unequal-speed transmission ratios are avoided, the structure is simple, the cost is low, the mechanism motion precision is high, the seedling damage rate can be effectively reduced, the problem of transplanting arm interference does not exist, and the mechanism is suitable for agricultural requirements of planting of small seedlings and small plant spacing.
2. According to the invention, by designing a driving system of the single-arm rice pot seedling transplanting mechanism, three groups of chain transmission are used, the same-direction different rotating speeds of the non-circular sun gear and the planet carrier are realized by single power input, the structure is simple, and the transmission is stable and reliable.
3. The single-arm differential non-circular gear system avoids the condition that transplanting arms of the multi-arm gear train transplanting mechanism interfere with each other, and has the advantages of few mechanism constraint conditions, high design flexibility, simple structure and stable operation.
4. According to the invention, by designing the driving system of the single-arm differential non-circular gear system, the non-circular sun gear and the planet carrier are driven to rotate in the same direction and in a differential manner by the uniform rotation of the power shaft, so that the transmission is stable and reliable.
5. The single-arm rice pot seedling transplanting mechanism adopts single-stage non-circular gear pair non-constant speed transmission, avoids the problem that the non-constant speed transmission ratio of single-degree-of-freedom two-stage non-circular gear non-constant speed transmission is mutually restricted due to the fact that the intermediate wheel is simultaneously meshed with the sun wheel and the planet wheel, side gap accumulation exists in two-stage non-constant speed transmission, and the like, can realize the design of the free transmission ratio, can be used as a front-inserting type rice pot seedling transplanting component and a rear-inserting type rice pot seedling transplanting component, and further more accurately realizes more ideal transplanting track and posture.
6. The transplanting arm in the single-arm differential non-circular gear train has smaller movement space, is convenient to install and debug, and can realize the mechanized transplanting of the small seedlings and the small plant spacing rice pot seedlings.
Drawings
FIG. 1 is a schematic view of the general structure of a single-arm rice transplanting mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic mechanism diagram of a single-arm rice pot seedling transplanting mechanism;
FIG. 3 is a schematic diagram of a single-arm rice pot seedling transplanting mechanism and its relative movement transplanting trajectory;
FIG. 4 is a schematic diagram of a forward-inserted absolute-motion transplanting trajectory of a single-arm rice pot seedling transplanting mechanism;
FIG. 5 is a schematic diagram of a backward-inserted absolute-motion transplanting trajectory of a single-arm rice pot seedling transplanting mechanism;
FIG. 6 is a schematic view showing the operation of the single-arm rice transplanting mechanism;
fig. 7 is a schematic view of the bezier gear pitch curve formation.
Reference numerals:
1-a non-circular sun gear I, 2-a planet carrier I, 3-a planet shaft I, 4-a transplanting arm I, 5-a non-circular planet gear I, 6-a transmission chain I, 7-a driving chain wheel I, 8-a driving shaft, 9-a driving chain wheel II, 10-a transmission chain wheel II, 11-a driving chain wheel III, 12-a transmission chain wheel III, 13-a non-circular planet gear II, 14-a transplanting arm II, 15-a planet shaft II, 16-a planet carrier II, 17-a non-circular sun gear II, 18-a driven chain wheel III, 19-a driven shaft, 20-a driven chain wheel II, 21-a driven chain wheel III, 22-rice pot seedlings, 23-a pot disc, 24-a relative motion track, 25-the ground and 26-an absolute motion track.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
A single-arm rice pot seedling transplanting mechanism comprises a driving system II, wherein three driven sprockets are arranged in the driving system II, a driving sprocket is used for transmitting power to driven sprockets through chain transmission, the driven sprocket in the middle is fixedly connected with a driven shaft, the driven sprockets at two ends are fixedly connected with a non-circular sun wheel, and the non-circular sun wheel is matched with a non-circular planet wheel; the planet carrier is fixedly connected with the driven shaft, one end of the planet shaft is fixedly connected with the non-circular planet wheel, and the other end of the planet shaft is fixedly connected with a transplanting arm; wherein the non-circular sun wheel and the planet carrier rotate in the same direction at a differential speed, and the differential speed transmission ratio is 2: 1.
In the above scheme, the non-circular sun gear and the non-circular planet gear form a pair of non-circular gear pairs conjugated with each other, and the average transmission ratio is 1: 1.
In the above scheme, the non-circular sun gear and the non-circular planet gear are bezier gears.
In the scheme, the driving system II comprises a driving shaft 8, a driving chain wheel I7, a driving chain wheel II 9, a driving chain wheel III 11, a transmission chain wheel I6, a transmission chain wheel II 10, a transmission chain wheel III 12, a driven shaft 19, a driven chain wheel I21, a driven chain wheel II 20 and a driven chain wheel III 18; the driving shaft 8 is provided with a driving chain wheel I7, a driving chain wheel II 9 and a driving chain wheel III 11, wherein the driving chain wheel I7 transmits power to a driven chain wheel III 18 through a transmission chain I6; the second driving sprocket 9 transmits power to the second driven sprocket 20 through the second transmission chain 10; the driving chain wheel III 11 transmits power to the driven chain wheel III 18 through the transmission chain III 12.
In the above scheme, the transmission ratio of the first driving sprocket 7 to the first driven sprocket 21 is 1: 2, the transmission ratio of the second driving chain wheel 9 to the second driven chain wheel 20 is 1:1, the transmission ratio of the driving chain wheel III 11 to the driven chain wheel III 18 is 1: 2.
in the scheme, a differential non-circular gear train I is formed by a non-circular sun gear I1, a planet carrier I2, a planet shaft I3, a non-circular planet gear I5 and a transplanting arm I4; the non-circular sun wheel I1 is matched with the non-circular planet wheel I5, one end of the planet shaft I3 is fixed on the non-circular planet wheel I5, and the other end of the planet shaft I is fixedly connected with the transplanting arm I4.
In the scheme, a differential non-circular gear train III is formed by the non-circular sun gear II 17, the planet carrier II 16, the planet shaft II 15, the non-circular planet gear II 13 and the transplanting arm II 14; the second non-circular sun gear 17 is matched with the second non-circular planet gear 13, one end of the second planet shaft 15 is fixed on the second non-circular planet gear 13, and the other end of the second planet shaft is fixedly connected with the second transplanting arm 14.
In the scheme, the non-circular sun wheel and the planet carrier are respectively hinged on the frame of the transplanter.
With reference to the attached drawings 1-6, a single-arm rice pot seedling transplanting mechanism comprises a driving system II, a single-arm differential non-circular gear train I and a single-arm differential non-circular gear train III; the driving system II comprises a driving shaft 8, a driving chain wheel I7, a driving chain wheel II 9, a driving chain wheel III 11, a transmission chain wheel I6, a transmission chain wheel II 10, a transmission chain wheel III 12, a driven shaft 19, a driven chain wheel I21, a driven chain wheel II 20 and a driven chain wheel III 18; the differential non-circular gear system I is respectively composed of a non-circular sun gear I1, a planet carrier I2, a planet shaft I3, a non-circular planet gear I5 and a transplanting arm I4; the differential non-circular gear system III is respectively composed of a non-circular sun gear II 17, a planet carrier II 16, a planet shaft II 15, a non-circular planet gear II 13 and a transplanting arm II 14. In the driving system II, a driving chain wheel I7, a driving chain wheel II 9 and a driving chain wheel III 11 are fixedly connected to a driving shaft 8 and rotate along with the rotation of the driving shaft 8. The first driving sprocket 7 is connected with the first driven sprocket 21 through the first transmission chain 6, the second driving sprocket 9 is connected with the second driven sprocket 20 through the second transmission chain 10, and the third driving sprocket 11 is connected with the third driven sprocket 18 through the third transmission chain 12. The second driven chain wheel 20 is fixedly connected with the driven shaft 19, the first driven chain wheel 21 is fixedly connected with the first non-circular sun wheel 1, and the third driven chain wheel 18 is fixedly connected with the second non-circular sun wheel 17. Wherein the transmission ratio of the first driving chain wheel 7 to the first driven chain wheel 21 is 1: 2, the transmission ratio of the second driving chain wheel 9 to the second driven chain wheel 20 is 1:1, the transmission ratio of the driving chain wheel III 11 to the driven chain wheel III 18 is 1: 2.
in the single-arm differential non-circular gear train I, a non-circular sun gear I1, a planet carrier I2, a planet shaft I3, a non-circular planet gear I5 and a transplanting arm I4 are arranged. The non-circular sun wheel I1 is fixedly connected to a driven chain wheel I21, the planet carrier I2 is fixedly connected with a driven shaft 19, the planet shaft 3 is hinged to the planet carrier I2, and two ends of the planet shaft I3 are fixedly connected with a transplanting arm I4 and a non-circular planet wheel I5 respectively. The non-circular sun wheel 1 and the non-circular planet wheel 5 form a pair of mutually conjugated non-circular gear pairs, and the average rotation ratio of the non-circular sun wheel to the non-circular planet wheel is 1: 1. A single-arm rice pot seedling transplanting mechanism is characterized in that a non-circular sun wheel I1 and a planet carrier I2 rotate in the same direction at a differential speed, and the differential speed transmission ratio is 2: 1. The transplanting arm I4 realizes the transplanting track and posture of the rice pot seedlings under the combined action of the non-circular sun gear I1 and the planet carrier I2. When the transplanting arm I4 moves to the seedling taking position, the rice pot seedlings 22 are taken out from the pot disc 23, and then the rice pot seedlings 22 are conveyed to the ground 25 to complete the transplanting. The transplanting arm I4 forms a relative motion track 24 relative to the transplanter frame, and forms an absolute motion track 26 relative to the ground 25.
In the single-arm differential non-circular gear train III, the transmission mode and the connection relation are the same as those of the single-arm differential non-circular gear train I.
The working process of the invention is as follows:
power is input by a driving shaft 8, and the driving shaft 8 drives a driving chain wheel I7, a driving chain wheel II 9 and a driving chain wheel III 11 which are fixedly connected with the driving shaft to rotate at a constant speed. The second driving sprocket 9 is connected with the second driven sprocket 20 through a second transmission chain 10, the second driven sprocket 20 is fixedly connected with the driven shaft 19 so as to drive the driven shaft 19 to rotate, and the first planet carrier 2 and the second planet carrier 16 are fixedly connected with the driven shaft 19 and rotate along with the driven shaft 19; the driving chain wheel I7 is connected with the driven chain wheel I21 through the transmission chain I6 to drive the driven chain wheel I21 to rotate, the driven chain wheel I21 is fixedly connected with the non-circular sun gear I1, and the non-circular sun gear I1 rotates along with the driven chain wheel I21; the driving chain wheel III 11 is connected with the driven chain wheel III 18 through a transmission chain III 12 to drive the driven chain wheel III 18 to rotate, the driven chain wheel III 18 is fixedly connected with the non-circular sun wheel II 17, and the non-circular sun wheel II 17 rotates along with the driven chain wheel III 17; in the single-arm differential non-circular gear system I, a planet carrier I2 rotates along with a driven shaft 19 to drive a planet shaft I3 hinged on the planet carrier I2 to perform turnover motion, two ends of the planet shaft I3 are fixedly connected with a non-circular planet wheel I5 and a transplanting arm I4 respectively, the non-circular planet wheel I5 is meshed with a non-circular sun wheel I1 to rotate, and the transplanting arm I4 realizes mechanized transplanting track and posture of rice pot seedlings under the combined action of the planet shaft I3 and the planet carrier I1. The non-circular sun gear I1 and the non-circular planet gear I5 form a pair of mutually conjugated non-circular gear pairs, and the average rotation ratio of the non-circular sun gear I to the non-circular planet gear I is 1: 1. The differential non-circular gear train I with the single arm comprises a non-circular sun gear I, a non-circular sun gear I1 and a planet carrier I2 which rotate in a same direction in a differential mode under the driving of a driven chain wheel I21 and a driven shaft 19 respectively, and the differential transmission ratio is 2: 1.
In the single-arm differential non-circular gear train III, the second planet carrier 16 rotates along with the driven shaft 19 to drive the second planet shaft 15 hinged on the second planet carrier 16 to perform turnover motion, two ends of the second planet shaft 15 are fixedly connected with the second non-circular planet wheel 13 and the second transplanting arm 14 respectively, the second non-circular planet wheel 13 is meshed with the second non-circular sun wheel 17 to rotate, and the second transplanting arm 14 realizes the mechanized transplanting track and posture of the rice pot seedlings under the combined action of the second planet shaft 13 and the second planet carrier 16. The non-circular sun gear II 17 and the non-circular planet gear II 13 form a pair of mutually conjugated non-circular gear pairs, and the average rotation ratio of the non-circular sun gear II to the non-circular planet gear II is 1: 1. And a differential non-circular gear system III with a single arm, a second non-circular sun gear 17 and a second planet carrier 13 rotate in the same direction at a differential speed, and the differential transmission ratio is 2: 1.
Referring to fig. 7, P0 to P13 are variable control points of the bezier gear, wherein the first control point P0 and the last control point P13 pass through the bezier gear pitch curve, and the other control points determine the shape, derivative and order of the pitch curve, so that the resulting pitch curve is 13-order bezier curve. During optimization, the shape of the pitch curve can be visually observed, and the adjustment of which type point and the adjustment direction are to be adjusted can be easily judged.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims (8)

1. The single-arm rice pot seedling transplanting mechanism is characterized by comprising a driving system II, wherein three driven sprockets are arranged in the driving system II, a driving sprocket transmits power to a driven sprocket through chain transmission, the driven sprocket in the middle is fixedly connected with a driven shaft, the driven sprockets at two ends are fixedly connected with a non-circular sun wheel, and the non-circular sun wheel is matched with a non-circular planet wheel; the planet carrier is fixedly connected with the driven shaft, one end of the planet shaft is fixedly connected with the non-circular planet wheel, and the other end of the planet shaft is fixedly connected with a transplanting arm; wherein the non-circular sun wheel and the planet carrier rotate in the same direction at a differential speed, and the differential speed transmission ratio is 2: 1.
2. The single-arm rice pot seedling transplanting mechanism of claim 1, wherein the non-circular sun gear and the non-circular planet gear form a pair of non-circular gear pairs which are mutually conjugated, and the average transmission ratio is 1: 1.
3. The single-arm rice pot seedling transplanting mechanism according to any one of claims 1 to 2, wherein the non-circular sun wheel and the non-circular planet wheel are Bessel gears.
4. The single-arm rice pot seedling transplanting mechanism as claimed in claim 1, wherein the driving system II comprises a driving shaft (8), a driving chain wheel I (7), a driving chain wheel II (9), a driving chain wheel III (11), a transmission chain wheel I (6), a transmission chain wheel II (10), a transmission chain wheel III (12), a driven shaft (19), a driven chain wheel I (21), a driven chain wheel II (20) and a driven chain wheel III (18); the driving shaft (8) is provided with a first driving chain wheel (7), a second driving chain wheel (9) and a third driving chain wheel (11), wherein the first driving chain wheel (7) transmits power to a third driven chain wheel (18) through a first transmission chain (6); the second driving chain wheel (9) transmits power to the second driven chain wheel (20) through a second transmission chain (10); and the driving chain wheel III (11) transmits power to the driven chain wheel III (18) through the transmission chain III (12).
5. The single-arm rice pot seedling transplanting mechanism as claimed in claim 4, wherein the transmission ratio of the driving chain wheel I (7) to the driven chain wheel I (21) is 1: 2, the transmission ratio of the driving chain wheel II (9) to the driven chain wheel II (20) is 1:1, the transmission ratio of the driving chain wheel III (11) to the driven chain wheel III (18) is 1: 2.
6. the single-arm rice pot seedling transplanting mechanism as claimed in claim 1, wherein a differential non-circular gear train I is formed by the non-circular sun gear I (1), the planet carrier I (2), the planet shaft I (3), the non-circular planet gear I (5) and the transplanting arm I (4); the non-circular sun wheel I (1) is matched with the non-circular planet wheel I (5), one end of the planet shaft I (3) is fixed on the non-circular planet wheel I (5), and the other end of the planet shaft I is fixedly connected with the transplanting arm I (4).
7. The single-arm rice pot seedling transplanting mechanism of claim 1, wherein a differential non-circular gear train III is composed of a second non-circular sun gear (17), a second planet carrier (16), a second planet shaft (15), a second non-circular planet gear (13) and a second transplanting arm (14); and one end of the planet shaft II (15) is fixed on the non-circular planet wheel II (13), and the other end of the planet shaft II is fixedly connected with the transplanting arm II (14).
8. The single-arm rice pot seedling transplanting mechanism of claim 1, wherein the non-circular sun gear and the planet carrier are respectively hinged on a transplanter frame.
CN202210047470.8A 2022-01-17 2022-01-17 Single-arm rice pot seedling transplanting mechanism Pending CN114467431A (en)

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Publication number Priority date Publication date Assignee Title
CN1943298A (en) * 2006-10-26 2007-04-11 浙江理工大学 Differential driving sprit transplanting mechanism of step rice transplanter
CN103460865A (en) * 2013-07-24 2013-12-25 浙江理工大学 Rotary rice pot seedling transplanting mechanism
CN106258115A (en) * 2016-09-20 2017-01-04 浙江理工大学 Differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism
CN108419480A (en) * 2018-03-05 2018-08-21 东北农业大学 Cave, transplanting mechanism are opened on accurate rice pot seedling film
CN111837534A (en) * 2020-06-15 2020-10-30 江苏大学 Differential non-circular gear system transplanting mechanism and method
CN112106495A (en) * 2020-08-20 2020-12-22 浙江理工大学 Non-circular gear double eccentric wheel combined rice pot seedling transplanting mechanism

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1943298A (en) * 2006-10-26 2007-04-11 浙江理工大学 Differential driving sprit transplanting mechanism of step rice transplanter
CN103460865A (en) * 2013-07-24 2013-12-25 浙江理工大学 Rotary rice pot seedling transplanting mechanism
CN106258115A (en) * 2016-09-20 2017-01-04 浙江理工大学 Differential speed gears accurate rice pot seedling wide-and narrow-row transplanting mechanism
CN108419480A (en) * 2018-03-05 2018-08-21 东北农业大学 Cave, transplanting mechanism are opened on accurate rice pot seedling film
CN111837534A (en) * 2020-06-15 2020-10-30 江苏大学 Differential non-circular gear system transplanting mechanism and method
CN112106495A (en) * 2020-08-20 2020-12-22 浙江理工大学 Non-circular gear double eccentric wheel combined rice pot seedling transplanting mechanism

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