CN102124849A - Eccentric gear transmission transplanting mechanism with alternating planetary axles - Google Patents
Eccentric gear transmission transplanting mechanism with alternating planetary axles Download PDFInfo
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- CN102124849A CN102124849A CN 201110034384 CN201110034384A CN102124849A CN 102124849 A CN102124849 A CN 102124849A CN 201110034384 CN201110034384 CN 201110034384 CN 201110034384 A CN201110034384 A CN 201110034384A CN 102124849 A CN102124849 A CN 102124849A
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Abstract
The invention discloses an eccentric gear transmission transplanting mechanism with alternating planetary axles. A center chain wheel drives gear boxes which are fixedly arranged at two ends of a center shaft to rotate; a stationary center eccentric helical gear is respectively meshed with planetary eccentric gears which are fixed on a planetary shaft in a transmission mode through center eccentric profile shifted gears on two sides; the helical angle rotation directions of the center eccentric helical gear and the center eccentric profile shifted gears are opposite to each other; two axial lines are parallel to each other; two helical angle rotation directions of the center eccentric profile shifted gears and the planetary eccentric helical gear are accordant; and the planetary shaft and the center shaft form an alternate angle which is as large again as the helical angle. A planting arm is arranged at an extended end of the planetary shaft, and the absolute motion with the planting arm is resultant motion of the space non-uniform rotation of the planetary eccentric helical gear relative to the gear box and the circular motion of the gear box relative to the center shaft. Because of the alternate angle between the planetary shaft and the center shaft, after a seedling needle of the planting arm takes seedlings at work, a seedling transplanting point is leftwards or rightwards relative to a seedling taking point, so that the row spacing of the transplanted seedlings is changed in width, and the requirements on realizing wide-narrow row seedling transplantation are met.
Description
Technical field
The present invention relates to agricultural machinery, especially relate to a kind of planet wheel and shaft staggered Eccentric Gear-drive transplanting mechanism.
Background technology
Become in the transplanting mechanism document of line-spacing rice transplanting at existing disclosed rice transplanter, mainly be to utilize Bevel Gear Transmission to become the planetary system transplanting mechanism of line-spacing, but continuous development along with gear machining technology, the processing of many special gears all realizes, the present invention adopts eccentric helical gear and eccentric displacement helical teeth to realize the requirement of the capable rice transplanting of width, under the prerequisite that realizes job requirement, simplified mechanism, by regulating planet eccentric helical gear and the helical gear relative position of middle eccentric displacement, optimize the associated mechanisms parameter, can design the capable rice transplanting transplanting mechanism of the width that satisfies different type of machines.Gear can form of straight lines and triangle orthoscopic arrange that both having can be used for walk-behind type paddy-field work machine also can be used for high-speed transplanter.
Summary of the invention
In order to be suitable for the requirement of the capable rice transplanting of width, the object of the present invention is to provide a kind of planet wheel and shaft staggered Eccentric Gear-drive transplanting mechanism.
In order to achieve the above object, the technical solution used in the present invention is:
The present invention includes drive disk assembly and four transplant arms that structure is identical; The left and right two ends of central shaft in the drive disk assembly are connected with the identical left and right transmission case of interior respectively, stretch out on four outer planet axis of left and right transmission case transplant arm is installed respectively.The structure of right transmission case is as follows: right center eccentric gear is installed in the right transmission case of central shaft right-hand member, the right center eccentric gear that sky is enclosed within on the central shaft is fixedly connected by right flange and frame, upper right middle eccentric modified gear is installed on the upper right jackshaft, eccentric modified gear in the middle of the bottom right is installed on the jackshaft of bottom right, right center eccentric gear meshes with the middle eccentric modified gear of upper right middle eccentric modified gear and bottom right respectively, eccentric displacement wheel in upper right centre and the upper right planet eccentric gear engagement that is installed on the upper right planet axis, eccentric modified gear and bottom right planet eccentric gear (9) engagement that is installed on the planet axis of bottom right in the middle of the bottom right; Upper right, bottom right planet axis becomes an alternate angle setting with upper right, bottom right jackshaft respectively; Upper right, bottom right planet shaft extension goes out the outer end of right transmission case body and is fixed with transplant arm, during transplanting mechanism work, because alternate angle upper right, the bottom right planet axis causes that transplant arm seedling needle point relative seedling taking position after seedling taking is offset to the left or to the right, thereby realizes that institute's rice transplanting seedling line-spacing width distributes.
Described upper right, bottom right jackshaft respectively with upper right, bottom right planet axis with respect to central shaft center symmetric arrangement, that upper right, planet axis axle center, bottom right is arranged in is promptly upper right on the extended line of central shaft and jackshaft axial connecting line, bottom right jackshaft, upper right, bottom right planet axis and five axle center of central shaft point-blank, perhaps be arranged in the position that turns over certain angle around the jackshaft axle center, promptly upper right jackshaft, planet axis and central shaft axial connecting line and bottom right planet axis, jackshaft and central shaft axial connecting line form with two triangles of central shaft axle center to the top.
Described right center eccentric gear and upper right, bottom right planet eccentric gear are eccentric helical gear, and eccentric modified gear is eccentric displacement helical gear in the middle of upper right, the bottom right.
Described right center eccentric gear is an eccentric helical gear, and the middle eccentric modified gear in upper right, bottom right is eccentric displacement helical gear, and upper right, bottom right planet eccentric gear is eccentric spur gear.
Described right center eccentric gear is eccentric spur gear, and the middle eccentric modified gear in upper right, bottom right is eccentric displacement spur gear, and upper right, bottom right planet eccentric gear is an eccentric helical gear.
The beneficial effect that the present invention has is:
The eccentric displacement helical gear of the symmetrically arranged two groups of planetary systems of relative center eccentric helical gear in transmission case body, see from the side, two jackshafts and two planet axis and central shaft totally five axle center can constitute with central shaft two congruent triangles and the linear on top are arranged, wherein the transplanting mechanism of linear layout can be fit to the capable rice transplanting of width of big spacing in the rows, and the transplanting mechanism of triangular arrangement can be fit to the capable rice transplanting of little spacing in the rows width.
Description of drawings
The sectional stretch-out view of the present invention that Fig. 1 is.
Fig. 2 be the A of Fig. 1 to view, among the figure α angle be in the middle of the alternate angle of eccentric displacement helical gear and planet eccentric helical gear.
Fig. 3 is that the B-B cutaway view of Fig. 2 is represented the transplant arm interior.
Fig. 4 is the schematic diagram that epicyclic train middle gear center is linearly arranged.
Fig. 5 is the schematic diagram that epicyclic train middle gear center is two equal triangular arrangement, can optimize parameter θ as required, the β angle.
Fig. 6 is staggered eccentric helical gear and the helical gear schematic diagram of eccentric displacement.
Fig. 7 is that left and right transplant arm rice transplanting track pushes away the principle schematic of seedling point distance greater than seedling door spacing.
Fig. 8 is that left and right transplant arm rice transplanting track pushes away the principle schematic of seedling point distance less than seedling door spacing.
Among the figure: 1. central shaft, 2. right flange, 2 ＇. left flange, 3. right transmission case, 3 ＇. Left Drive case, 4. right center eccentric gear, 4 ＇. LC eccentric gear, 5. upper right middle eccentric modified gear, 5 ＇. eccentric modified gear in the middle of upper left, 6. upper right planet eccentric gear, 6 ＇. upper left planet eccentric gear, 7. upper right planet axis, 7 ＇. upper left planet axis, 8. eccentric modified gear in the middle of the bottom right, 8 ＇. eccentric modified gear in the middle of the lower-left, 9. bottom right planet eccentric gear, 9 ＇. lower-left planet eccentric gear, 10. bottom right planet axis, 10 ＇. the lower-left planet axis, 11. right transplant arm parts (left and right sides transplant arm parts mirror image symmetry), 12. the seedling pin, 13. transplant arm housings, 14. transplanting rods, 15. shift fork, 16. spring, 17. cams, 18. seedling doors, 19. the rice transplanting track, 20. soil.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, comprise drive disk assembly and four transplant arms that structure is identical; The left and right two ends of central shaft in the drive disk assembly are connected with the identical left and right transmission case of interior respectively, stretch out on four outer planet axis of left and right transmission case transplant arm is installed respectively.
The structure of right transmission case 3 is as follows: right center eccentric gear 4 is installed in the right transmission case 3 of central shaft 1 right-hand member, the right center eccentric gear 4 that sky is enclosed within on the central shaft 1 is fixedly connected with frame by right flange 2, upper right middle eccentric modified gear 5 is installed on the upper right jackshaft, eccentric modified gear 8 in the middle of the bottom right is installed on the jackshaft of bottom right, right center eccentric gear 4 meshes with the middle eccentric modified gear 8 of upper right middle eccentric modified gear 5 and bottom right respectively, eccentric modified gear 5 and upper right planet eccentric gear 6 engagements that are installed on the upper right planet axis 7 in the middle of upper right, eccentric modified gear 8 and bottom right planet eccentric gear 9 engagements that are installed on the bottom right planet axis 10 in the middle of the bottom right; Upper right, bottom right planet axis 7,10 becomes an alternate angle α to be provided with respectively with upper right, bottom right jackshaft; Upper right, bottom right planet axis 7,10 is stretched out the outer end of right transmission case body and is fixed with transplant arm, during transplanting mechanism work, because alternate angle α upper right, bottom right planet axis 7,10 causes that transplant arm seedling needle point relative seedling taking position after seedling taking is offset to the left or to the right, thereby realizes that institute's rice transplanting seedling line-spacing width distributes.
The structure of Left Drive case 3 ＇ is as follows: in Left Drive case 3 ＇ of central shaft 1 left end LC eccentric gear 4 ＇ are installed, LC eccentric gear 4 ＇ that sky is enclosed within on the central shaft 1 are fixedly connected by left flange 2 ＇ and frame, upper left middle eccentric modified gear 5 ＇ are installed on the upper left jackshaft, eccentric modified gear 8 ＇ in the middle of the lower-left are installed on the jackshaft of lower-left, LC eccentric gear 4 ＇ mesh with upper left middle eccentric modified gear 5 ＇ and middle eccentric modified gear 8 ＇ in lower-left respectively, eccentric modified gear 5 ＇ and the upper left planet eccentric gear 6 ＇ engagement that is installed on upper left planet axis 7 ＇ in the middle of upper left, eccentric modified gear 8 ＇ and the lower-left planet eccentric gear 9 ＇ engagement that is installed on lower-left planet axis 10 ＇ in the middle of the lower-left; Upper left, lower-left planet axis 7 ＇, 10 ＇ become an alternate angle α to be provided with respectively with upper left, lower-left jackshaft; Upper left, lower-left planet axis 7 ＇, 10 ＇ stretch out the outer end of Left Drive casing and are fixed with transplant arm, during transplanting mechanism work, because alternate angle α upper left, lower-left planet axis 7 ＇, 10 ＇ cause that transplant arm seedling pin 12 relative seedling taking position after seedling taking is that seedling door 18 is offset to the left or to the right, thereby realize that institute's rice transplanting seedling line-spacing width distributes.
Above-described jackshaft respectively with planet axis with respect to central shaft center symmetric arrangement, the planet axis axle center be arranged on the extended line of central shaft and jackshaft axial connecting line be jackshaft, planet axis and five axle center of central shaft point-blank, perhaps be arranged in the position that turns over certain angle β around the jackshaft axle center, promptly go up jackshaft, planet axis and central shaft axial connecting line and lower planet axle, jackshaft and central shaft axial connecting line and form with two triangles of central shaft axle center to the top, θ is middle non-round helical gear and the initial established angle of the non-round helical gear in center.
Above-described center eccentric gear and planet eccentric gear are eccentric helical gear, and middle eccentric modified gear is eccentric displacement helical gear.
Above-described center eccentric gear is an eccentric helical gear, and middle eccentric modified gear is eccentric displacement helical gear, and the planet eccentric gear is eccentric spur gear.
Above-described center eccentric gear is eccentric spur gear, and middle eccentric modified gear is eccentric displacement spur gear, and the planet eccentric gear is an eccentric helical gear.
See that from the side middle eccentric modified gear 5,8, planet eccentric gear 6,9 are arranged (as shown in Figure 4) in line with the center of rotation line of center eccentric gear 4 or changed the β angle and become two congruent triangles to arrange (as shown in Figure 5); Center eccentric helical gear 4 and two middle eccentric modified gears 5,8 directly mesh, and described two middle eccentric modified gears 5,8 directly mesh with two planet eccentric gears 6,9 respectively.
With the gear in the right transmission case 8,9 is that example illustrates the installation relation between middle eccentric modified gear 8 and the planet eccentric helical gear 9, Fig. 5 is the schematic diagram of two staggered gears, α angle among Fig. 6 is identical with the α angle among Fig. 2, this is because two helical gear rotation directions are identical, formed the alternate angle that doubles helical angle during installation, the present invention also utilizes the space rice transplanting track of this characteristics design transplanting mechanism, the three-dimensional model diagram of two staggered gears of Fig. 5 just.Can form the capable track 19 of the different width of seedling taking point by the helical angle rotation direction of regulating planet eccentric helical gear 8,9, as Fig. 7, shown in Figure 8, the track seedling taking point of two transplanting mechanisms of Fig. 7 is narrow, and it is wide to push away seedling point; And Fig. 82 track seedling taking points distance is wideer than pushing away seedling point.
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 transmission case rotates, in the left and right transmission case that rotates, fixing center eccentric helical gear is by middle eccentric displacement helical gear transmission planet eccentric helical gear, wherein the helical gear helical angle rotation direction of two middle eccentric displacements is opposite with the direction of center eccentric helical gear, and the helical angle rotation direction of planet eccentric helical gear is identical with the helical gear helical angle rotation direction of the eccentric displacement in centre of engagement separately, forms the alternate angle that doubles helical angle.When planetary gear with planet axis when gearcase rotates, rotating of transplant arm with planet axis, because the existence of alternate angle, the rotational plane of transplant arm and the rotational plane of gearcase are not parallel planes, and the relative motion of transplant arm and gearcase involves to rotate and syntheticly make that seedling pin track becomes a space tracking on the transplant arm like this.As shown in Figure 3, and one of the rotation of transplant arm formation affects shift fork 15 to be fixed on the gearcase around stationary cam 17() swing, shift fork 15 passes through the ascent stage of cams 17 and lifts before seedling taking, and transplanting rod 14 is increased to peak, and compression simultaneously pushes away seedling spring 16; Before rice transplanting, the extreme higher position that shift fork 15 is in cam 17 keeps section in seedling taking; When the seedling pin 12 arrival rice transplanting positions that are fixed on the transplant arm housing 13, shift fork 15 goes to cam 17 breach, pushes away seedling spring 16 returns and promotes transplanting rod 14 downward rapid movements, and rice shoot is pushed in the soil 20.Thereby order has been finished seedling taking, the rice transplanting action of rice seedling, realizes the capable transplanting of mechanization width of rice seedling.
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. planet wheel and shaft staggered Eccentric Gear-drive transplanting mechanism, it comprises drive disk assembly and four transplant arms that structure is identical; The left and right two ends of central shaft in the drive disk assembly are connected with the identical left and right transmission case of interior respectively, stretch out on four outer planet axis of left and right transmission case transplant arm is installed respectively; The structure that it is characterized in that right transmission case (3) is as follows: in the right transmission case (3) of central shaft (1) right-hand member right center eccentric gear (4) is installed, the right center eccentric gear (4) that sky is enclosed within on the central shaft (1) is fixedly connected by right flange (2) and frame, upper right middle eccentric modified gear (5) is installed on the upper right jackshaft, eccentric modified gear (8) in the middle of the bottom right is installed on the jackshaft of bottom right, right center eccentric gear (4) meshes with upper right middle eccentric modified gear (5) and the middle eccentric modified gear in bottom right (8) respectively, eccentric modified gear (5) and upper right planet eccentric gear (6) engagement that is installed on the upper right planet axis (7) in the middle of upper right, eccentric modified gear (8) and bottom right planet eccentric gear (9) engagement that is installed on the bottom right planet axis (10) in the middle of the bottom right; Upper right, bottom right planet axis (7,10) becomes an alternate angle setting with upper right, bottom right jackshaft respectively; Upper right, bottom right planet axis (7,10) is stretched out the outer end of right transmission case body and is fixed with transplant arm, during transplanting mechanism work, because alternate angle upper right, bottom right planet axis (7,10) causes that transplant arm seedling needle point relative seedling taking position after seedling taking is offset to the left or to the right, thereby realizes that institute's rice transplanting seedling line-spacing width distributes.
2. a kind of planet wheel and shaft staggered Eccentric Gear-drive transplanting mechanism according to claim 1, it is characterized in that: described upper right, the bottom right jackshaft is respectively with upper right, the bottom right planet axis is with respect to central shaft center symmetric arrangement, upper right, planet axis axle center, bottom right is arranged on the extended line of central shaft and jackshaft axial connecting line promptly upper right, the bottom right jackshaft, upper right, five axle center of bottom right planet axis and central shaft point-blank, perhaps be arranged in the position that turns over certain angle around the jackshaft axle center, promptly upper right jackshaft, planet axis and central shaft axial connecting line and bottom right planet axis, jackshaft and central shaft axial connecting line form with two triangles of central shaft axle center to the top.
3. a kind of planet wheel and shaft staggered Eccentric Gear-drive transplanting mechanism according to claim 1, it is characterized in that: described right center eccentric gear and upper right, bottom right planet eccentric gear are eccentric helical gear, and eccentric modified gear is eccentric displacement helical gear in the middle of upper right, the bottom right.
4. a kind of planet wheel and shaft staggered Eccentric Gear-drive transplanting mechanism according to claim 1, it is characterized in that: described right center eccentric gear is an eccentric helical gear, the middle eccentric modified gear in upper right, bottom right is eccentric displacement helical gear, and upper right, bottom right planet eccentric gear is eccentric spur gear.
5. a kind of planet wheel and shaft staggered Eccentric Gear-drive transplanting mechanism according to claim 1, it is characterized in that: described right center eccentric gear is eccentric spur gear, the middle eccentric modified gear in upper right, bottom right is eccentric displacement spur gear, and upper right, bottom right planet eccentric gear is an eccentric helical gear.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110034384 CN102124849A (en) | 2011-02-01 | 2011-02-01 | Eccentric gear transmission transplanting mechanism with alternating planetary axles |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110034384 CN102124849A (en) | 2011-02-01 | 2011-02-01 | Eccentric gear transmission transplanting mechanism with alternating planetary axles |
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| CN102124849A true CN102124849A (en) | 2011-07-20 |
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| CN 201110034384 Pending CN102124849A (en) | 2011-02-01 | 2011-02-01 | Eccentric gear transmission transplanting mechanism with alternating planetary axles |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102349386A (en) * | 2011-09-01 | 2012-02-15 | 黑龙江八一农垦大学 | Transmission mechanism of dry farmland transplanter suitable for plant material cupulate compartment tray |
| CN104412760A (en) * | 2013-08-23 | 2015-03-18 | 井关农机株式会社 | Seedling transplanting device |
| JP2015077115A (en) * | 2013-10-18 | 2015-04-23 | 井関農機株式会社 | Seedling planting apparatus |
| CN105210518A (en) * | 2015-10-19 | 2016-01-06 | 苏州市天幕景观装饰工程有限公司 | A kind of eccentric gear train rice transplanting mechanism of rice transplanter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101861773A (en) * | 2010-06-04 | 2010-10-20 | 浙江理工大学 | Planet wheel and shaft staggered elliptical skew gear transmission transplanting mechanism |
| CN101933424A (en) * | 2010-09-03 | 2011-01-05 | 江苏大学 | Differential eccentric gear train transplanting mechanism |
| CN201947648U (en) * | 2011-02-01 | 2011-08-31 | 浙江理工大学 | Planet wheel and axle staggered eccentric gear drive transplanting mechanism |
-
2011
- 2011-02-01 CN CN 201110034384 patent/CN102124849A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101861773A (en) * | 2010-06-04 | 2010-10-20 | 浙江理工大学 | Planet wheel and shaft staggered elliptical skew gear transmission transplanting mechanism |
| CN101933424A (en) * | 2010-09-03 | 2011-01-05 | 江苏大学 | Differential eccentric gear train transplanting mechanism |
| CN201947648U (en) * | 2011-02-01 | 2011-08-31 | 浙江理工大学 | Planet wheel and axle staggered eccentric gear drive transplanting mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102349386A (en) * | 2011-09-01 | 2012-02-15 | 黑龙江八一农垦大学 | Transmission mechanism of dry farmland transplanter suitable for plant material cupulate compartment tray |
| CN104412760A (en) * | 2013-08-23 | 2015-03-18 | 井关农机株式会社 | Seedling transplanting device |
| TWI631890B (en) * | 2013-08-23 | 2018-08-11 | 井關農機股份有限公司 | Seedling transplanting device |
| JP2015077115A (en) * | 2013-10-18 | 2015-04-23 | 井関農機株式会社 | Seedling planting apparatus |
| CN105210518A (en) * | 2015-10-19 | 2016-01-06 | 苏州市天幕景观装饰工程有限公司 | A kind of eccentric gear train rice transplanting mechanism of rice transplanter |
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Application publication date: 20110720 |