CN100515173C - Rotary separating and planting mechanism with eccentric gear-nonknuckle gear of walking rice transplanter - Google Patents
Rotary separating and planting mechanism with eccentric gear-nonknuckle gear of walking rice transplanter Download PDFInfo
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- CN100515173C CN100515173C CNB2007101117811A CN200710111781A CN100515173C CN 100515173 C CN100515173 C CN 100515173C CN B2007101117811 A CNB2007101117811 A CN B2007101117811A CN 200710111781 A CN200710111781 A CN 200710111781A CN 100515173 C CN100515173 C CN 100515173C
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 235000007164 Oryza sativa Nutrition 0.000 title abstract description 23
- 235000009566 rice Nutrition 0.000 title abstract description 23
- 240000007594 Oryza sativa Species 0.000 title 1
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 241000209094 Oryza Species 0.000 abstract description 22
- 230000033001 locomotion Effects 0.000 abstract description 18
- 238000010586 diagram Methods 0.000 description 7
- 241001481833 Coryphaena hippurus Species 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 210000003734 kidney Anatomy 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The present invention discloses rotary separating and planting mechanism with knuckle gear-nonknuckle gear for walking rice seedling transplanter. The central chain wheel inside the chain wheel box rotates the right and the left gear boxes separately on two ends of the central shaft, and two fixed central eccentric gears in the gear boxes drives the planetary eccentric gear on the planetary shaft via the meshing intermediate nonknuckle gears to rotate unevenly relatively to the gear boxes. The planting arm fixed to the end of the planetary shaft stretching beyond the gear box performs a resultant motion. The planetary gear train of the said mechanism features that the cross section centers of the central shaft, the intermediate shaft and the planetary shaft form one triangle. The present invention can ensure high rice seedling transplanting quality.
Description
Technical field
The present invention relates to agricultural machinery, especially relate to a kind of eccentric gear-nonknuckle gear rotary transplanting mechanism of walk-behind type paddy-field work machine.
Background technology
At present, the rice transplanter of selling on market, its planting mechanism mainly contain two kinds: crank-rocker style transplanting mechanism and rotary transplanting mechanism.The crank-rocker style transplanting mechanism can be by changing the relative movement orbit that crank center of rotation and rocking bar oscillation center position change the seedling pawl, when its relative movement orbit is " kidney shape ", be used for saddle type rice transplanter, when its relative movement orbit is " dolphin shape ", be used for walk-behind type paddy-field work machine.The seedling pawl relative movement orbit of rotary transplanting mechanism is " kidney shape ", is mainly used in saddle type rice transplanter, if when being used for walk-behind type paddy-field work machine, it is excessive that then crater is planted in rice transplanting, causes easily and float seedling and seedling laying.But rotary transplanting mechanism is compared with the crank-rocker style transplanting mechanism, has the advantage that inertia force is little, vibrate little and good stability.
Summary of the invention
The purpose of this invention is to provide a kind of eccentric gear-nonknuckle gear rotary transplanting mechanism that is applicable to walk-behind type paddy-field work machine, the physical dimension of this mechanism is less relatively, vibrates also little.
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 is included on the power transmission shaft in the chain-wheel box drive sprocket is housed, through chain be contained in chain-wheel box in center sprocket wheel on the central shaft be connected, central shaft stretches out chain-wheel box and arranged on left and right sides axle head outward and is fixed with left and right gearcase respectively.Be equipped with respectively on the central shaft in the described left and right gearcase by left and right flanges and be fixed on left and right central gear on the chain-wheel box, left and right central gear respectively by be packed in the left and right idler gear on the left and right jackshaft and be fixed in left and right planetary gear engaged transmission on the left and right planet axis, left and right planet axis is stretched out the outer end of left and right gearcase and is fixed with left and right transplant arm parts.
Left and right central gear in the described left and right gearcase, three axle center A, B of left and right idler gear and left and right planetary gear three shaft gear planetary systems, the relative position triangularity of C are arranged.
Described left and right central gear and left and right planetary gear are all to be the identical eccentric gear of gear geometric parameter, and left and right idler gear is a non-circular gear.
Described left and right transplant arm parts 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.
Respectively be fixed with the seedling pawl of " U " type on the described left and right transplant arm parts, two seedling fetching fingers that separately stretch out of seedling pawl are the angle steel shape, and the bottom P1 of seedling fetching finger is sharp blade-like, and the inboard P2 between two seedlings refer to is level and smooth shape.
Central gear maintains static, center chain wheeling driving gear box rotates, planetary gear drives the transplant arm be packed in planet axis one end and does non-uniform rotation with respect to gearcase, and the absolute movement of transplant arm is the resultant motion around the circular motion of central shaft of the non-uniform rotation of the relative gearcase of planetary gear and gearcase.Under the influence of this resultant motion, the requirement of seedling pawl angle when seedling pawl angle and rice transplanting when the seedling pawl in the transplant arm parts satisfies seedling taking.
The present invention compares with background technology, the beneficial effect that has is: centre wheel has only 1 group of planetary system gear drive relatively in gearcase, three axle center A, B of gear planetary system, the relative position triangularity of C are arranged, drive 1 transplant arm motion, gearcase turns around, the transplant arm rice transplanting once, the relative movement orbit of seedling pawl is just as " dolphin shape " curve, realize rice transplanting 1 cave, rice transplanting frequency when being fit to walk-behind type paddy-field work machine work, plant the hole and become very little, be beneficial to upright seedling, reduce seedling rate and the seedling laying rate of floating; If improve the gearcase rotating speed, also can be used on the high-speed transplanter; Two seedling fetching fingers that separately stretch out of " U " type seedling pawl are the angle steel shape, the bottom P1 of seedling fetching finger is sharp blade-like, and the inboard P2 between two seedlings refer to is level and smooth shape, in the time of can reducing the seedling taking of seedling pawl and the frictional resistance between soil, inboard between two seedlings refer to is level and smooth, is difficult for hindering seedling; 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.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 the B-B cutaway view of Fig. 2.
Fig. 4 is the transmission principle schematic diagram that three axle center of the present invention's " eccentric gear-noncircular gear " are rounded projections arranged.
Fig. 5 is a seedling claw shape feature schematic diagram of the present invention.
Fig. 6 is the schematic diagram that concerns of seedling pawl position of the present invention and planet carrier corner.
Fig. 7 is the movement locus schematic diagram of seedling hook tip of the present invention.
Fig. 8 is the movement locus schematic diagram of " planetary system formula arranged in a straight line " transplanting mechanism seedling hook tip in the past.
Among the figure: 1. central shaft, 2 '. left flange, 2. right flange, 3. center sprocket wheel, 4. chain-wheel box, 5 '. the left gear box, 5. right gear box, 6 '. left lateral star-wheel, 6. right lateral star-wheel, 7 '. left planet axis, 7. right planet axis, 8 '. left transplant arm parts, 8. right transplant arm parts, 9 '. left shift fork, 9. right shift fork, 10 '. left cam, 10. right cam, 12 '. left jackshaft, 12. right jackshaft, 13 '. left idler gear, 13. right idler gears, 14 '. LC gear, 14. right central gears, 15. seedling pawls, 16. power transmission shaft, 17. transplanting rods, 18. drive sprockets, 19. chain, 20. push away the seedling spring, 21. cushion pads.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, 2, the eccentric gear-nonknuckle gear rotary transplanting mechanism of walk-behind type paddy-field work machine of the present invention, it comprises drive disk assembly and transplant arm parts.Drive disk assembly is included on the power transmission shaft 16 in the chain-wheel box 4 drive sprocket 18 is housed, through chain 19 be contained in chain-wheel box 4 in center sprocket wheel 3 on the central shaft 1 be connected, central shaft 1 stretch out chain-wheel box 4 outer and arranged on left and right sides axle heads be fixed with respectively left and right gearcase 5 ', 5.Described left and right gearcase 5 ', be equipped with respectively on the central shaft 1 in 5 by left and right flanges 2 ', 2 be fixed on left and right central gear 14 on the chain-wheel box 4 ', 14, left and right central gear 14 ', 14 respectively by be packed in left and right jackshaft 12 ', left and right idler gear 13 on 12 ', 13 and be fixed in left and right planet axis 7 ', left and right planetary gear 6 on 7 ', 6 engaged transmission, left and right planet axis 7 ', 7 stretch out left and right gearcase 5 ', 5 outer ends be fixed with left and right transplant arm parts 8 ', 8.
Described left and right gearcase 5 ', the left and right central gear 14 in 5 ', 14, left and right idler gear 13 ', 13 and left and right planetary gear 6 ', three axle center A, B of 6 three shaft gear planetary systems, the relative position triangularity of C arrange.
Described left and right central gear 14 ', 14 and left and right planetary gear 6 ', the 6th, all be the identical eccentric gear of gear geometric parameter, and left and right idler gear 13 ', the 13rd, non-circular gear (not comprising elliptic gear).
Described left and right transplant arm parts 8 ', 8 be 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.
Described left and right transplant arm parts 8 ', respectively be fixed with the seedling pawl 15 of " U " type on 8, two seedling fetching fingers that separately stretch out of seedling pawl 15 are the angle steel shape, the bottom P1 of seedling fetching finger is sharp blade-like, the inboard P2 between two seedlings refer to is level and smooth shape.
As shown in Figure 3, be example with right transplant arm parts 8, it is equipped with pulling seedlings device, comprising: right cam 10, right shift fork 9, push away seedling spring 20, cushion pad 21, seedling pawl 15, transplanting rod 17.Right cam 10 is fixedlyed connected with right gear box 5.As shown in Figure 5, the P1 place, bottom of " U " type seedling pawl 15 is sharp blade-like, and the inboard P2 place that two seedling pawls are 15 is a smooth-shaped.
As shown in Figure 4, described central shaft 1, left and right jackshaft 12 ', 12, left and right planet axis 7 ', the relative position triangularity of 7 three axle center A, B, C arranges, α, δ are eccentric gear and non-circular gear initial position established angle, α＜δ.
As shown in Figure 6, when inserting for one's duty that the seedling pawl rotates with planet carrier in the mechanism for implementing example, the track of its tip.
As shown in Figure 7, be that one's duty inserts the track of seedling hook tip in the mechanism for implementing example, a is that quiet track is the track of machine when not walking, the track when b is the machine walking for moving track, and c is a rice shoot, and d is the horizon, and e is the seedling pawl, and s is for planting the hole width.
As shown in Figure 8, the movement locus of " planetary system formula arranged in a straight line " transplanting mechanism seedling hook tip in the past, a ' is quiet track, the track when b ' is the machine walking for moving track, c is a rice shoot, and d is the horizon, and e is the seedling pawl, and s ' is for planting the hole width.
From Fig. 7, Fig. 8 as can be seen, the present invention makes to plant to cheat and becomes very little, and s ' is 83mm, and s only is 25mm.
Operation principle of the present invention is: transplanting mechanism power is delivered to the center sprocket wheel by rice transplanter chain-wheel box drive sprocket through chain, the drive central shaft rotates, driving left and right gearcase rotates, simultaneously, in the left and right gearcase that rotates, fixing central gear is by idler gear transmission planetary gear, when planetary gear around planet axis when gearcase rotates, the drive transplant arm rotates, affect shift fork to center on the stationary cam swing, shift fork passes through the ascent stage of cam and lifts before seedling taking, and transplanting rod is increased to peak, and compression simultaneously pushes away the seedling spring; Before rice transplanting, the extreme higher position that shift fork is in cam keeps section in seedling taking; When seedling pawl arrival rice transplanting position, shift fork goes to cam notch, pushes away seedling spring return and promotes the downward rapid movement of transplanting rod, 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 a planetary gear around the resultant motion around the circular motion of central shaft of the non-uniform rotation of the relative gearcase of planet axis and gearcase.Gearcase turns around, and transplant arm rice transplanting rice transplanting frequency once is fit to the job requirement of walk-behind type paddy-field work machine.Utilize computer optimization eccentric gear and non-circular gear gearratio, the number of teeth and assembly parameter (initial established angle, the planetary gear offset angle) etc., just can make work track, the seedling taking angle of seedling pin and push away " dolphin shape " rice transplanting track requirement that kinematic parameters such as seedling angle satisfy walk-behind type paddy-field work machine.
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 (4)
1, the eccentric gear-nonknuckle gear rotary transplanting mechanism of walk-behind type paddy-field work machine, it comprises drive disk assembly and transplant arm parts; Drive disk assembly is included on the interior power transmission shaft (16) of chain-wheel box (4) drive sprocket (18) is housed, through chain (19) be contained in chain-wheel box (4) in center sprocket wheel (3) on the central shaft (1) be connected, central shaft (1) stretches out the outer and arranged on left and right sides axle head of chain-wheel box (4) and is fixed with left and right gearcase (5 ', 5) respectively, is equipped with respectively on the central shaft (1) in the described left and right gearcase (5 ', 5) by left and right flanges (2 ', 2) and is fixed on left and right central gear on the chain-wheel box (4) (14 ', 14); It is characterized in that: left and right central gear (14 ', 14) respectively by be packed in left and right idler gear on the left and right jackshaft (12 ', 12) (13 ', 13) and be fixed in left and right planetary gear on the left and right planet axis (7 ', 7) (6 ', 6) engaged transmission, left and right planet axis (7 ', 7) is stretched out the outer end of left and right gearcase (5 ', 5) and is fixed with left and right transplant arm parts (8 ', 8); Described left and right central gear (14 ', 14) and left and right planetary gear (6 ', 6) are all to be the identical eccentric gear of gear geometric parameter, and left and right idler gear (13 ', 13) is a non-circular gear.
2, the eccentric gear-nonknuckle gear rotary transplanting mechanism of walk-behind type paddy-field work machine according to claim 1, it is characterized in that: the left and right central gear in the described left and right gearcase (5 ', 5) (14 ', 14), left and right idler gear (13 ', 13) and left and right planetary gear (6 ', 6) three axle center A, B of three shaft gear planetary systems, the relative position triangularity of C layout.
3, the eccentric gear-nonknuckle gear 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 (8 ', 8) 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.
4, the eccentric gear-nonknuckle gear rotary transplanting mechanism of walk-behind type paddy-field work machine according to claim 1, it is characterized in that: the seedling pawl (15) that respectively is fixed with " U " type on the described left and right transplant arm parts (8 ', 8), two seedling fetching fingers that separately stretch out of seedling pawl (15) are the angle steel shape, the bottom P1 of seedling fetching finger is sharp blade-like, and the inboard P2 between two seedlings refer to is level and smooth shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101117811A CN100515173C (en) | 2006-10-26 | 2007-06-07 | Rotary separating and planting mechanism with eccentric gear-nonknuckle gear of walking rice transplanter |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610053982.6 | 2006-10-26 | ||
| CNA2006100539826A CN1943299A (en) | 2006-10-26 | 2006-10-26 | Rotary split transplanting mechanism of step rice transplanter |
| CNB2007101117811A CN100515173C (en) | 2006-10-26 | 2007-06-07 | Rotary separating and planting mechanism with eccentric gear-nonknuckle gear of walking rice transplanter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101066018A CN101066018A (en) | 2007-11-07 |
| CN100515173C true CN100515173C (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101117811A Expired - Fee Related CN100515173C (en) | 2006-10-26 | 2007-06-07 | Rotary separating and planting mechanism with eccentric gear-nonknuckle gear of walking rice transplanter |
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| CN (1) | CN100515173C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101904239B (en) * | 2010-08-10 | 2011-11-30 | 浙江理工大学 | Transplanting mechanism of swing-type wide-narrow row rice transplanter |
| CN102124850A (en) * | 2011-02-01 | 2011-07-20 | 浙江理工大学 | Eccentric-noncircular gears drive rearward separating-planting mechanism with staggered planetary wheel axles |
| CN102124848A (en) * | 2011-02-01 | 2011-07-20 | 浙江理工大学 | Eccentric-noncircular gears drive separating-planting mechanism with staggered planetary wheel axles |
| CN102239764B (en) * | 2011-07-19 | 2013-02-13 | 浙江理工大学 | Elliptical bevel gear-elliptical gear wide-narrow row transplanting mechanism of high-speed rice transplanter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2612218Y (en) * | 2003-04-09 | 2004-04-21 | 浙江工程学院 | Disk type combination gear planetary system separating and transplanting mechanism |
| CN201064096Y (en) * | 2006-10-26 | 2008-05-28 | 浙江理工大学 | Walking type transplanter eccentric center-non-circular gear back-inserting rotating seedling separating and transplanting mechanism |
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2007
- 2007-06-07 CN CNB2007101117811A patent/CN100515173C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2612218Y (en) * | 2003-04-09 | 2004-04-21 | 浙江工程学院 | Disk type combination gear planetary system separating and transplanting mechanism |
| CN201064096Y (en) * | 2006-10-26 | 2008-05-28 | 浙江理工大学 | Walking type transplanter eccentric center-non-circular gear back-inserting rotating seedling separating and transplanting mechanism |
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| CN101066018A (en) | 2007-11-07 |
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