CN102124848A - Eccentric-noncircular gears drive separating-planting mechanism with staggered planetary wheel axles - Google Patents
Eccentric-noncircular gears drive separating-planting mechanism with staggered planetary wheel axles Download PDFInfo
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- CN102124848A CN102124848A CN 201110034370 CN201110034370A CN102124848A CN 102124848 A CN102124848 A CN 102124848A CN 201110034370 CN201110034370 CN 201110034370 CN 201110034370 A CN201110034370 A CN 201110034370A CN 102124848 A CN102124848 A CN 102124848A
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Abstract
The invention discloses an eccentric-noncircular gears drive separating-planting mechanism with staggered planetary wheel axles. A central chain wheel in a chain wheel box drives a left gearbox and a right gearbox, fixed at two ends of a central axle, to rotate; stationary central eccentric gears are respectively in meshed drive with planetary eccentric gears through middle noncircular gears at two sides, wherein the planetary eccentric gears are fixed on planetary axles; the rotation direction of the central eccentric gears is opposite to a rotation direction of a helical angle of the middle noncircular gears, the axes of the central eccentric gears are parallel to the axes of the middle noncircular gears, the rotation direction of the middle noncircular gears is consistent with the rotation directions of two helical angles of the planetary eccentric gears, and the planetary axles and the middle axles form a staggered angle which is two times of the helical angle; and the extension ends of the planetary axles are fixedly provided with planting arms, and the absolute motion of the planting arms is defined as a synthesis motion of a spatial nonuniform rotation of the planetary eccentric gears relative to the gearboxes and the circumferential motion of the gearboxes relative to the central axle. Due to the staggered angle between the planetary axles and the middle axles, after seedlings are taken by planting needles of the planting arms when the gear drive separating-planting mechanism works, the planting points deflect leftwards or rightwards relative to seedling taking points so that the line spacing of the planted seedlings is in a width change, and therefore, wide and narrow line planting requirement is met.
Description
Technical field
The present invention relates to agricultural machinery, especially relate to a kind of planet wheel and shaft staggered off-centre-non-circular gear transmission 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 non-round 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 non-circle, 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 off-centre-non-round skew gear transmission 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.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 non-circular gear is installed on the upper right jackshaft, non-circular gear in the middle of the bottom right is installed on the jackshaft of bottom right, right center eccentric gear meshes with the middle non-circular gear of upper right middle non-circular gear and bottom right respectively, non-circle wheel in upper right centre and the upper right planet eccentric gear engagement that is installed on the upper right planet axis, non-circular gear and the bottom right planet eccentric gear 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 α to be provided with respectively with upper right, bottom right jackshaft; 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 α 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 β 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 non-circular gear is non-round helical gear in the middle of upper right, the bottom right.
Described right center eccentric gear is an eccentric helical gear, and the middle non-circular gear in upper right, bottom right is non-round 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 non-circular gear in upper right, bottom right is non-round 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 relative symmetrically arranged 2 groups of planetary system off-centre of center eccentric helical gear-non-round 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 non-round 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 non-circle.
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 non-circular gear, 5 ＇. non-circular 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. non-circular gear in the middle of the bottom right, 8 ＇. non-circular 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, 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 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 non-circular gear 5 is installed on the upper right jackshaft, non-circular 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 non-circular gear 8 of upper right middle non-circular gear 5 and bottom right respectively, non-circle wheel 5 in upper right centre and upper right planet eccentric gear 6 engagements that are installed on the upper right planet axis 7, non-circular 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 pin 12 relative seedling taking position after seedling taking is that seedling door 18 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 non-circular gear 5 ＇ are installed on the upper left jackshaft, non-circular 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 non-circular gear 5 ＇ and middle non-circular gear 8 ＇ in lower-left respectively, upper left centre non-circle wheel 5 ＇ and the upper left planet eccentric gear 6 ＇ engagement that is installed on upper left planet axis 7 ＇, non-circular 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 needle point relative seedling taking position after seedling taking 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 non-circular gear is non-round helical gear.
Above-described center eccentric gear is an eccentric helical gear, and middle non-circular gear is non-round helical gear, and the planet eccentric gear is eccentric spur gear.
Above-described center eccentric gear is eccentric spur gear, and middle non-circular gear is non-round spur gear, and the planet eccentric gear is an eccentric helical gear.
See that from the side middle non-circular 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 non-circular gears 5,8 directly mesh, and described two middle non-circular gears 5,8 directly mesh with the eccentric tiltedly wheel 6,9 of two planets respectively.
With the gear in the right transmission case 8,9 is that example illustrates the installation relation between middle non-circular gear 8 and the planet eccentric helical gear 9, Fig. 5 is the schematic diagram of two staggered gears, the α angle is identical with the α angle among Fig. 2 among Fig. 6, 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 19 of this characteristics design transplanting mechanism, the three-dimensional model diagram of Fig. 6 two staggered gears 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 non-round helical gear transmission planet eccentric helical gear, wherein the helical gear helical angle rotation direction of two middle non-circles 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 non-circle 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 19 on the transplant arm like this.And the rotation of transplant arm forms one and affects shift fork 15 to be fixed on the gearcase around stationary cam 17() swing, shift fork 15 lifted through ascent stage of cams 17 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 off-centre-non-circular gear transmission 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 non-circular gear (5) is installed on the upper right jackshaft, non-circular 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 non-circular gear (5) and the middle non-circular gear in bottom right (8) respectively, non-circle wheel in upper right centre (5) and upper right planet eccentric gear (6) engagement that is installed on the upper right planet axis (7), non-circular 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 off-centre according to claim 1-non-circular gear transmission transplanting mechanism, 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 off-centre according to claim 1-non-circular gear transmission transplanting mechanism, it is characterized in that: described right center eccentric gear and upper right, bottom right planet eccentric gear are eccentric helical gear, and non-circular gear is non-round helical gear in the middle of upper right, the bottom right.
4. a kind of planet wheel and shaft staggered off-centre according to claim 1-non-circular gear transmission transplanting mechanism, it is characterized in that: described right center eccentric gear is an eccentric helical gear, the middle non-circular gear in upper right, bottom right is non-round helical gear, and upper right, bottom right planet eccentric gear is eccentric spur gear.
5. a kind of planet wheel and shaft staggered off-centre according to claim 1-non-circular gear transmission transplanting mechanism, it is characterized in that: described right center eccentric gear is eccentric spur gear, the middle non-circular gear in upper right, bottom right is non-round spur gear, and upper right, bottom right planet eccentric gear is an eccentric helical gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110034370 CN102124848A (en) | 2011-02-01 | 2011-02-01 | Eccentric-noncircular gears drive separating-planting mechanism with staggered planetary wheel axles |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110034370 CN102124848A (en) | 2011-02-01 | 2011-02-01 | Eccentric-noncircular gears drive separating-planting mechanism with staggered planetary wheel axles |
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| CN 201110034370 Pending CN102124848A (en) | 2011-02-01 | 2011-02-01 | Eccentric-noncircular gears drive separating-planting mechanism with staggered planetary wheel axles |
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Cited By (3)
| 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 |
| CN103688632A (en) * | 2013-12-18 | 2014-04-02 | 中国农业大学 | Potted seedling lifting and rotating device |
| 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 |
|---|---|---|---|---|
| CN101066018A (en) * | 2006-10-26 | 2007-11-07 | 浙江理工大学 | Rotary separating and planting mechanism with eccentric gear-nonknuckle gear of walking rice transplanter |
| 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 |
| CN201976429U (en) * | 2011-02-01 | 2011-09-21 | 浙江理工大学 | Eccentric and non-circular gear transmission transplanting mechanism with staggered planetary axles |
-
2011
- 2011-02-01 CN CN 201110034370 patent/CN102124848A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066018A (en) * | 2006-10-26 | 2007-11-07 | 浙江理工大学 | Rotary separating and planting mechanism with eccentric gear-nonknuckle gear of walking rice transplanter |
| 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 |
| CN201976429U (en) * | 2011-02-01 | 2011-09-21 | 浙江理工大学 | Eccentric and non-circular gear transmission transplanting mechanism with staggered planetary axles |
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 |
| CN103688632A (en) * | 2013-12-18 | 2014-04-02 | 中国农业大学 | Potted seedling lifting and rotating device |
| CN103688632B (en) * | 2013-12-18 | 2015-06-24 | 中国农业大学 | Potted seedling lifting and rotating device |
| 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 |