CN100409736C - Differential driving sprit transplanting mechanism of step rice transplanter - Google Patents
Differential driving sprit transplanting mechanism of step rice transplanter Download PDFInfo
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- CN100409736C CN100409736C CNB2006100539811A CN200610053981A CN100409736C CN 100409736 C CN100409736 C CN 100409736C CN B2006100539811 A CNB2006100539811 A CN B2006100539811A CN 200610053981 A CN200610053981 A CN 200610053981A CN 100409736 C CN100409736 C CN 100409736C
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- 235000007164 Oryza sativa Nutrition 0.000 title description 31
- 235000009566 rice Nutrition 0.000 title description 31
- 240000007594 Oryza sativa Species 0.000 title 1
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000033001 locomotion Effects 0.000 abstract description 16
- 241000209094 Oryza Species 0.000 description 35
- 238000009355 double cropping Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000002054 transplantation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The present invention discloses a differential transplanting mechanism of ambulating seedling transplanter. A central chain wheel fixed to central shaft in chain wheel box drives a column gear fixed to shaft, which meshes a middle gear fixed to middle shaft. The other two middle gears fixed to shaft separately mesh gears supported on two left/right sliding sleeves of shaft by bearing to drive gear box connected with gears. In the said gear box, a central gear fixed to shaft meshes planetary gears fixed to planetary shafts to drive planting arms fixed to projections of shaft outside the said gear box. The absolute motion of planting arms becomes synthetic motion of circumferential motion of gear box relatively to shaft and unequal speed rotation of planetary gears relatively to gear box. The gear box is rotated through one cycle, and can make planting arms operating by once. So the said invention can be fitted for working frequency of ambulating seedling transplanter.
Description
Technical field
The present invention relates to agricultural machinery, especially relate to a kind of differential gearing transplanting mechanism of walk-behind type paddy-field work machine.
Background technology
At present, the legged rice transplanter of at home and abroad selling on the market, its planting mechanism is the crank-rocker style transplanting mechanism.In China, south rice is the double cropping rice plantation, and the north is single cropping rice plantation.During the double cropping rice plantation, the rice shoot individuality of transplanting is bigger, higher, is big transplantation of seedlings; During single cropping rice plantation, the rice shoot individuality of transplanting is less relatively, shorter, is little transplantation of seedlings.Rice transplanter when inserting large and small seedling, the work geometric locus difference of transplanting mechanism seedling pin.For this reason, must be optimized design to each structural parameters and the kinematic parameter of transplanting mechanism.The crank-rocker style transplanting mechanism is when inserting seedlings, and the geometric parameter of mechanism, overall dimension can increase, and vibration is aggravation thereupon also.
Granted publication number is in the patent of invention " differential transplanting mechanism " of CN1126436C, in sprocket cassette, have three drive sprockets drive respectively with the fixed high speed sprocket wheel of axle and with two low speed sprocket wheels that sliding sleeve is fixed, high speed chain gear transmission sun gear, low-speed gear is the travelling gear box then, relative sun gear has the planetary system gear of 2 groups of symmetric arrangement in gearcase, drive 2 transplant arms, gearcase turns around, two each actions of transplant arm once, realize rice transplanting 2 caves since when certain rotating speed rice transplanting frequency height, relatively be applicable to the sitting type high-speed transplanter but be not suitable for the lower walk-behind type paddy-field work machine of the speed of travel and use.In addition, realize differential gearing with three groups of chain gear transmission, drive gap is bigger, influences the movement locus of transplant arm and the effect of planting; In the transplant arm parts, shift fork to the application point of transplanting rod with to action of cam point not in the same lateral cross section of declutch shift shaft, two application points have a segment distance vertically, can make the axle sleeve of shift fork partly bear moment of torsion like this, correlated parts is also more fragile.
Summary of the invention
In order to be used for southern double cropping rice rice transplanting operation, can be used for northern single cropping rice rice transplanting operation again, the purpose of this invention is to provide a kind of differential gearing transplanting mechanism of walk-behind type paddy-field work machine, the physical dimension of this mechanism is less relatively, vibrates also less.
In order to achieve the above object, the technical solution used in the present invention is: it comprises drive disk assembly and transplant arm parts.Drive disk assembly comprises the drive sprocket that is contained on the chain-wheel box power transmission shaft, drive sprocket is connected with center sprocket wheel on being contained in central shaft through chain, be packed in driving gear and the idler gear engagement that is packed on the jackshaft on the central shaft, left idler gear and right idler gear are housed respectively on the jackshaft of idler gear and arranged on left and right sides, a left side idler gear and right idler gear respectively with gears engaged by left and right sliding sleeve one end of bearings on central shaft, fixedly connected with left and right gearcase respectively at the other end of left and right sliding sleeve.In the described left and right gearcase, the left and right central gear that is packed in the central shaft two ends respectively be packed on the left and right planet axis left and right planetary gear engagement, stretch out on the left and right planet axis of the outer end of left and right gearcase and be fixed with left and right transplant arm parts respectively.
Described driving gear, idler gear, left idler gear, right idler gear and left and right sliding sleeve gear are roller gear.
The gearratio of described driving gear, idler gear is 1: 1, and the gearratio of left idler gear and right idler gear and left and right sliding sleeve gear is 2: 1, and the gearratio of left and right sliding sleeve gear and central shaft is 2: 1.
Left and right central gear on the central shaft in the described left and right gearcase is identical eccentric gear of gear geometric parameter or non-circular gear with the left and right planetary gear that is packed on the left and right planet axis.
Power is imported into by the center sprocket wheel, divide two-way to pass to transplant arm: the one tunnel is to drive the left and right idler gear that is fixed on the central shaft two ends by the center sprocket wheel to rotate, by with left and right planet axis on the left and right planetary gear engaged transmission left and right transplant arm parts that are cemented in left and right planet axis one end do non-uniform rotation with respect to left and right gearcase; Another road is to drive the driving gear that is fixed on the central shaft by the center sprocket wheel to rotate, by with jackshaft on idler gear engaged transmission jackshaft rotate, in addition two left and right idler gears on the jackshaft then by with the gears engaged of left and right sliding sleeve one end, the transmission left and right gearcase fixed with it is with respect to the central shaft uniform rotation.The absolute movement of left and right transplant arm is the resultant motion around the circular motion of central shaft of the non-uniform rotation of the left and right relatively gearcase of left and right planetary gear and left and right gearcase.Under the influence of this resultant motion, the requirement of seedling pin angle when seedling pin angle and rice transplanting when the seedling pin in the left and right transplant arm parts satisfies seedling taking, its work track latch closure, highly less, the seedling pin moves up backward after the rice transplanting, avoids pushing over rice shoot and bumps seedling shoving rod.
The present invention compares with background technology, and the beneficial effect that has is: realize differential gearing with one-level chain gear transmission and two-stage gear drive, drive gap is little, and transmission more steadily, accurately, and is less to the movement locus of transplant arm and the influential effect of planting; Shift fork to the application point of transplanting rod with to action of cam point in the same lateral cross section of declutch shift shaft, shift fork part stress state is more reasonable; The absolute movement that can the make transplant arm resultant motion that to be gearcase rotate relative to the variable speed of gearcase relative to the circular motion of central shaft and planetary gear, the seedling pin track that is fixed on the transplant arm satisfies the rice transplanting requirement.Gearcase turns around, the transplant arm rice transplanting once, the rice transplanting frequency when being fit to walk-behind type paddy-field work machine work.After the parameter of optimizing structure, can be used for southern double cropping rice and northern single cropping rice rice transplanting operation.Simple in structure, volume is little, and is in light weight, vibrate little, low cost of manufacture.
Description of drawings
Fig. 1 is a mechanism principle schematic diagram of the present invention;
Fig. 2 is a structure assembling schematic diagram of the present invention;
Fig. 3 is that the A of Fig. 2 is to view;
Fig. 4 is the structure principle chart of transplant arm parts;
Fig. 5 is an elliptic gear transmission principle schematic diagram.
Among the figure: 1. central shaft, 2. chain-wheel box, 3. right sliding sleeve, 4. driving gear, 5. center sprocket wheel, 6. left sliding sleeve, 7. left gear box, 7 '. right gear box, 8. LC gear, 8 '. right central gear, 9. left lateral star gear, 9 '. right lateral star gear, 10. left planet axis, 10 '. right planet axis, 11. left transplant arm parts, 11 '. right transplant arm parts, 12. left idler gears, 13. jackshafts, 14. idler gear, 15. right idler gear, 16. shift forks, 17. cams, 18. transplanting rod, 19. the seedling pin, 20. cushion pads, 21. push away the seedling spring.
Embodiment
The invention will be further described with enforcement below in conjunction with accompanying drawing.
As shown in Figure 1, 2, differential gearing transplanting mechanism of the present invention, it comprises drive disk assembly and transplant arm parts.Drive disk assembly is included on chain-wheel box 2 power transmission shafts drive sprocket is housed, be connected with center sprocket wheel 5 on being contained in central shaft 1 through chain, be packed in driving gear 4 and idler gear 14 engagements that are packed on the jackshaft 13 on the central shaft 1, idler gear 14 left sides, on the jackshaft 13 of right both sides left idler gear 12 and right idler gear 15 are housed respectively, a left side idler gear 12 and right idler gear 15 respectively with by the left side of bearings on central shaft 1, right sliding sleeve 6, the gears engaged of 3 one ends is on a left side, right sliding sleeve 6,3 the other end respectively with a left side, right gear box 7,7 ' fixedly connected.Described left and right gearcase 7,7 ' in, the left and right central gear 8,8 ' respectively that is packed in central shaft 1 two ends be packed in left and right planet axis 10,10 ' on left and right planetary gear 9,9 ' engagement, stretch out the left and right planet axis 10,10 of left and right gearcase 7,7 ' outer end ' on be fixed with respectively left and right transplant arm parts 11,11 '.
Described driving gear 4, idler gear 14, left idler gear 12, right idler gear 15 and left and right sliding sleeve 6,3 gears are roller gear.
The gearratio of described driving gear 4, idler gear 14 is 1: 1, and left idler gear 12 and right idler gear 15 are 2: 1 with the gearratio of left and right sliding sleeve 6,3 gears, and the gearratio of left and right sliding sleeve 6,3 gears and central shaft 1 is 2: 1.
Left and right central gear 8,8 on the central shaft 1 of described left and right gearcase 7,7 ' interior ' with install left and right planet axis 10,10 ' on left and right planetary gear 9,9 ' be identical eccentric gear of gear geometric parameter or non-circular gear (as elliptic gear or other non-circular gear).
As shown in Figure 3, Figure 4, left and right transplant arm parts 11,11 ' in, pulling seedlings device is installed, comprising: cam 17, shift fork 16, push away seedling spring 21, cushion pad 20, seedling pin 19, transplanting rod 18.Cam 17 is fixedlyed connected with gearcase 7.
As shown in Figure 5, be the transmission principle schematic diagram of left and right central gear 8,8 ' when being elliptic gear for elliptic gear and left and right planetary gear 9,9 ' also.
Operation principle of the present invention is: transplanting mechanism power is delivered to center sprocket wheel 5 by rice transplanter chain-wheel box drive sprocket through chain, transmission central shaft 1 rotates, driving driving gear 4 rotates, by two-stage idler gear transmission sliding sleeve gear, drive a left side, right gear box 7,7 ' rotate, a left side of rotating, right gear box 7,7 ' in, be fixed on the left side on the central shaft 1, right central gear rotates with central shaft 1, a transmission left side, right lateral star gear, drive a left side, right transplant arm is around a left side, right planet axis is a left side relatively, right gear box 7,7 ' do not uniform rotation, affect shift fork 16 around stationary cam 17 swings, shift fork 16 passes through the ascent stage of cams 17 and lifts before seedling taking, transplanting rod 18 is increased to peak, and compression simultaneously pushes away seedling spring 21; Before rice transplanting, the extreme higher position that shift fork 16 is in cam 17 keeps section in seedling taking; When seedling pin 19 arrival rice transplanting positions, shift fork 16 goes to cam 17 breach, pushes away seedling spring 21 returns and promotes transplanting rod 18 downward rapid movements, and rice shoot is pushed in the soil.Thereby order has been finished seedling taking, the rice transplanting action of rice seedling, realizes the mechanization transplanting of rice seedling.The motion of transplant arm parts is that planetary gear rotates and the resultant motion of gearcase around the circular motion of central shaft around the variable speed of planet axis relative to gearcase.Gearcase turns around, and transplant arm rice transplanting rice transplanting frequency ratio once is fit to the job requirement of walk-behind type paddy-field work machine.Utilize computer optimization parameter (as changing elliptic gear eccentricity, the number of teeth etc.) and assembly parameter (initial established angle), can make the kinematic parameters such as work track, seedling taking angle and rice transplanting angle of seedling pin satisfy the requirement of southern double cropping rice, northern single cropping rice rice transplanting.
Therefore, it can be used for southern double cropping rice, can be used for northern single cropping rice rice transplanting operation again.
Above-mentioned embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (5)
1. the differential gearing transplanting mechanism of walk-behind type paddy-field work machine, it comprises drive disk assembly and transplant arm parts; It is characterized in that: drive disk assembly comprises the drive sprocket that is contained on chain-wheel box (2) power transmission shaft, drive sprocket is connected with center sprocket wheel (5) on being contained in central shaft (1) through chain, be packed in driving gear (4) and idler gear (14) engagement that is packed on the jackshaft (13) on the central shaft (1), idler gear (a 14) left side, on the jackshaft (13) of right both sides left idler gear (12) and right idler gear (15) are housed respectively, a left side idler gear (12) and right idler gear (15) respectively with by bearings on central shaft (a 1) left side, right sliding sleeve (6,3) gears engaged of an end is on a left side, right sliding sleeve (6,3) the other end respectively with a left side, right gear box (7,7 ') fixedly connected; In the described left and right gearcase (7,7 '), the left and right central gear (8,8 ') that is packed in central shaft (1) two ends respectively be packed on the left and right planet axis (10,10 ') left and right planetary gear (9,9 ') engagement, stretch out on the left and right planet axis (10,10 ') of the outer end of left and right gearcase (7,7 ') and be fixed with left and right transplant arm parts (11,11 ') respectively.
2. the differential gearing transplanting mechanism of walk-behind type paddy-field work machine according to claim 1, it is characterized in that: described driving gear (4), idler gear (14), left idler gear (12), right idler gear (15) and left and right sliding sleeve (6,3) gear is roller gear.
3. the differential gearing transplanting mechanism of walk-behind type paddy-field work machine according to claim 2, it is characterized in that: the gearratio of described driving gear (4), idler gear (14) is 1: 1, left side idler gear (12) and right idler gear (15) are 2: 1 with the gearratio of left and right sliding sleeve (6,3) gear, and the gearratio of left and right sliding sleeve (6,3) gear and central shaft (1) is 2: 1.
4. the differential gearing transplanting mechanism of walk-behind type paddy-field work machine according to claim 1 is characterized in that: the left and right central gear (8,8 ') on the central shaft (1) in the described left and right gearcase (7,7 ') is identical eccentric gear of gear geometric parameter or non-circular gear with the left and right planetary gear (9,9 ') that installs on the left and right planet axis (10,10 ').
5. the rotary transplanting mechanism of walk-behind type paddy-field work machine according to claim 1, it is characterized in that: described left and right transplant arm parts (11,11 ') are the straight arm type structure, promptly shift fork to the application point of transplanting rod with to action of cam point in the same lateral cross section of declutch shift shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100539811A CN100409736C (en) | 2006-10-26 | 2006-10-26 | Differential driving sprit transplanting mechanism of step rice transplanter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100539811A CN100409736C (en) | 2006-10-26 | 2006-10-26 | Differential driving sprit transplanting mechanism of step rice transplanter |
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| Publication Number | Publication Date |
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| CN1943298A CN1943298A (en) | 2007-04-11 |
| CN100409736C true CN100409736C (en) | 2008-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100539811A Expired - Fee Related CN100409736C (en) | 2006-10-26 | 2006-10-26 | Differential driving sprit transplanting mechanism of step rice transplanter |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101933424B (en) * | 2010-09-03 | 2013-04-17 | 江苏大学 | Differential eccentric gear train transplanting mechanism |
| CN102301858A (en) * | 2011-09-08 | 2012-01-04 | 东北农业大学 | Separating planting mechanism of denatured elliptic gear planetary gear train front planting type transplanter |
| CN102405712A (en) * | 2011-09-08 | 2012-04-11 | 东北农业大学 | Deformed elliptical gear planetary gear seedling transplanter seedling-separating mechanism |
| CN102726152B (en) * | 2012-06-19 | 2015-03-25 | 农业部南京农业机械化研究所 | Double-control differential planetary system transplanting mechanism |
| CN114467431A (en) * | 2022-01-17 | 2022-05-13 | 江苏大学 | Single-arm rice pot seedling transplanting mechanism |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09233922A (en) * | 1996-02-29 | 1997-09-09 | Kubota Corp | Seedling planting mechanism |
| CN2349752Y (en) * | 1998-11-21 | 1999-11-24 | 浙江大学 | Double controlled rice transplanting mechanism |
| CN1248387A (en) * | 1999-09-17 | 2000-03-29 | 浙江大学 | Differential transplanting mechanism |
| CN2396614Y (en) * | 1999-04-09 | 2000-09-20 | 浙江大学 | Differential seedling separating and transplanting mechanism |
| CN2401010Y (en) * | 1999-12-22 | 2000-10-18 | 浙江工程学院 | Disc type spur-gear planetary divided transplanting mechanism |
| CN1442035A (en) * | 2003-04-09 | 2003-09-17 | 浙江工程学院 | Column gear ellipsoid gear planetary system transplanting mechanism |
| CN200959727Y (en) * | 2006-10-26 | 2007-10-17 | 浙江理工大学 | Differential transmission transplanting mechanism for walking type rice transplanter |
-
2006
- 2006-10-26 CN CNB2006100539811A patent/CN100409736C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09233922A (en) * | 1996-02-29 | 1997-09-09 | Kubota Corp | Seedling planting mechanism |
| CN2349752Y (en) * | 1998-11-21 | 1999-11-24 | 浙江大学 | Double controlled rice transplanting mechanism |
| CN2396614Y (en) * | 1999-04-09 | 2000-09-20 | 浙江大学 | Differential seedling separating and transplanting mechanism |
| CN1248387A (en) * | 1999-09-17 | 2000-03-29 | 浙江大学 | Differential transplanting mechanism |
| CN2401010Y (en) * | 1999-12-22 | 2000-10-18 | 浙江工程学院 | Disc type spur-gear planetary divided transplanting mechanism |
| CN1442035A (en) * | 2003-04-09 | 2003-09-17 | 浙江工程学院 | Column gear ellipsoid gear planetary system transplanting mechanism |
| CN200959727Y (en) * | 2006-10-26 | 2007-10-17 | 浙江理工大学 | Differential transmission transplanting mechanism for walking type rice transplanter |
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| CN1943298A (en) | 2007-04-11 |
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