CN102428785B - Eccentric gear-incomplete non-circular gear planetary gear plug seedling picking mechanism - Google Patents
Eccentric gear-incomplete non-circular gear planetary gear plug seedling picking mechanism Download PDFInfo
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- CN102428785B CN102428785B CN201110270973.3A CN201110270973A CN102428785B CN 102428785 B CN102428785 B CN 102428785B CN 201110270973 A CN201110270973 A CN 201110270973A CN 102428785 B CN102428785 B CN 102428785B
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Abstract
The invention discloses an eccentric gear-incomplete non-circular gear planetary gear plug seedling picking mechanism. Power inside a sprocket box is transmitted to a center shaft, one end of which is fixed with a gear box. Longitudinally symmetrical planetary gear mechanisms are installed inside the gear box. An upper and lower planetary shaft that extend out of the gear box are respectively equipped with a seedling pickling arm of the same structure. An incomplete non-circular gear inside the gear box is fixed at one side of the sprocket box and is engaged with an upper and a lower eccentric gear respectively, and the upper and a lower eccentric gear are engaged with an upper and a lower planetary non-circular gear respectively. The incomplete non-circular gear is in coaxial and fixed connection with a convex locking arc, and the upper and the lower eccentric gear are coaxially in fixed connection with an upper and a lower concave locking arc respectively. In the invention, two sets of planetary gear transmission mechanisms are arranged relative to the center shaft, and set drives the motion of a seedling picking arm. Each circle of turning by the gear box can realize twice seedling picking. The plug seedling picking mechanism of the invention has the advantages of high operation efficiency, simple structure, small volume, light weight, and small vibration.
Description
Technical field
The present invention relates to agricultural machinery, especially relate to a kind of eccentric gear-not exclusively non-circular gear planetary gear system cave dish seedling seedling picking mechanism of automatic potted-seedling picking machine.
Background technology
At present, potted tray seedling transplanter both domestic and external is all taking automanual as main, and semi-automatic potted tray seedling transplanter is by the artificial seedling of feeding, and operating efficiency is not high, and in the time that planting speed is higher, leakage seedling, missing seedling rate increase greatly.And automatically potted tray seedling transplanter has automatically to seedling, gets seedling, comparatively automation and Labor-saving, operating efficiency is high.Although automatically potted tray seedling transplanter structure relative complex, in science and technology today with rapid changepl. never-ending changes and improvements, potted tray seedling transplanter will be the main trend that transplanter develops from now on automatically.If installing this on semi-automatic potted tray seedling transplanter additional, to overlap automatic cave dish seedling seedling picking mechanism be exactly automatic potted tray seedling transplanter.If soil property softer (as paddy field), Zhe Tao mechanism is exactly a set of full-automatic potted tray seedling transplanter, is all completed by Zhe Tao mechanism to the seedling of planting from getting seedling.
Summary of the invention
The object of this invention is to provide a kind of eccentric gear-not exclusively non-circular gear planetary gear system cave dish seedling seedling picking mechanism, the physical dimension of this mechanism is relatively little, and structure is relatively simple, vibrates also little.
In order to achieve the above object, the technical solution used in the present invention is:
Power in chain-wheel box is delivered on the sprocket wheel of center through chain by the drive sprocket being arranged on power transmission shaft, center sprocket wheel and central shaft are affixed, one end of central shaft is fixed with gear-box, laterally zygomorphic planet circular system gear mechanism is installed in gear-box, stretch out upper transplanting arm that upper planet axle outside gear-box is identical with structure is housed respectively on lower planet axle and under get seedling arm; It is characterized in that: the incomplete non-circular gear in gear-box is fixed on a side of chain-wheel box by flange, not exclusively non-circular gear is meshed with the upper and lower eccentric gear being packed on upper and lower jackshaft respectively, and upper and lower eccentric gear is meshed with the upper and lower planet non-circular gear being packed on upper and lower planet axle respectively; Not exclusively the lateral surface of non-circular gear is coaxially connected with protruding locking arc, the lateral surface of upper and lower eccentric gear is coaxially connected with upper and lower recessed locking arc respectively, and not exclusively the protruding locking arc on non-circular gear matches with the upper and lower recessed locking arc on upper and lower eccentric gear respectively.
Structure 1: described upper transplanting arm with under to get seedling arm configuration identical, include and get seedling arm housing, cam, shift fork, spring, seedling-pushing rod, left and rightly get seedling pin, " V " shape pushes away seedling pawl and spring base; Cam is fixed on the outside of gear-box, and spring base and seedling-pushing rod are affixed, and spring housing is in seedling-pushing rod, and shift fork is arranged on the axle of getting seedling arm housing, and one end of shift fork is pressed in spring base, and the other end of shift fork can contact with cam; While pushing away seedling, cam is stirred shift fork and is rotated, spring is compressed by spring base under the effect of shift fork, while shift fork also promotes the seedling-pushing rod affixed with spring base and moves downward, spring base drives " V " shape affixed with seedling-pushing rod to push away together with seedling pawl and moves downward, the left and right seedling pin of getting is opened, realize and push away seedling and fall seedling, prepare for get seedling next time simultaneously; When folder seedling, shift fork contacts with cam disengages, spring reset, reseting procedure medi-spring promotes spring base and moves upward, now also move upward with the affixed seedling-pushing rod of spring base, spring base drives " V " shape affixed with seedling-pushing rod to push away together with seedling pawl and moves upward, and the left and right seedling pin of getting is clamped, and realizes and presss from both sides seedling.
Structure 2: described upper transplanting arm with under to get seedling arm configuration identical, include and get seedling arm housing, cam, shift fork, spring, seedling-pushing rod, left and rightly get seedling sheet, " U " shape pushes away seedling pawl and spring base; Cam is fixed on the outside of gear-box, and spring base and seedling-pushing rod are affixed, and spring housing is in seedling-pushing rod, and shift fork is arranged on the axle of getting seedling arm housing, and one end of shift fork is pressed in spring base, and the other end of shift fork can contact with cam; While pushing away seedling, cam is stirred shift fork and is rotated, spring is compressed by spring base under the effect of shift fork, while shift fork also promotes the seedling-pushing rod affixed with spring base and moves downward, spring base drives " U " shape affixed with seedling-pushing rod to push away together with seedling pawl and moves downward, and left and right getting under the elasticity that seedling sheet has at self resets, and makes to get seedling sheet and opens, realization pushes away seedling and falls seedling, prepares for get seedling next time simultaneously; When folder seedling, shift fork contacts with cam disengages, spring reset, reseting procedure medi-spring promotes spring base and moves upward, now also move upward with the affixed seedling-pushing rod of spring base, spring base drives " U " shape affixed with seedling-pushing rod to push away together with seedling pawl and moves upward, and the left and right seedling sheet of getting is clamped, and realizes and presss from both sides seedling.
Described upper and lower planet non-circular gear engages the non-at the uniform velocity transmission that realizes this seedling picking mechanism with upper and lower eccentric gear; Upper and lower eccentric gear engages with incomplete non-circular gear the non-uniform intermittent drive of realizing this mechanism.
One end of described central shaft is fixed with gear-box, and the planet circular system gear mechanism of upper and lower symmetrical structure is installed in gear-box; Be fixed with another gear-box at the other end of central shaft, the planet circular system gear mechanism of another upper and lower symmetrical structure is installed in another gear-box simultaneously.
The invention has the beneficial effects as follows:
In the gear-box of this seedling picking mechanism, centre wheel has two groups of planet circular system gear drives relatively, and every group of planetary system gear drive drives one to get the motion of seedling arm, and gear-box turns around, and realizes 2 times and gets seedling, and operating efficiency is higher, simple in structure, and volume is little, lightweight, vibrates little.
Brief description of the drawings
Fig. 1 is mechanism principle schematic diagram of the present invention;
Fig. 2 is transmission principle schematic diagram of the present invention;
Fig. 3 is three-dimensional transmission principle schematic diagram of the present invention;
Fig. 4 is three-dimensional assembling schematic diagram of the present invention;
Fig. 5 is that one of the present invention is got seedling arm member clamping Miao Shi mechanism location drawing front view;
Fig. 6 is that one of the present invention is got seedling arm member clamping Miao Shi mechanism location drawing end view;
Fig. 7 is the A-A cutaway view of Fig. 6;
Fig. 8 is one of the present invention mechanism's location drawing front view while getting seedling arm member Fang Miao;
Fig. 9 is one of the present invention mechanism's location drawing end view while getting seedling arm member Fang Miao;
Figure 10 is the B-B cutaway view of Fig. 9;
Figure 11 is that another kind of the present invention is got seedling arm member clamping Miao Shi mechanism location drawing front view;
Figure 12 is that another kind of the present invention is got seedling arm member clamping Miao Shi mechanism location drawing end view;
Figure 13 be another kind of the present invention get that seedling arm member adopts post rubber get seedling sheet;
Figure 14 is another kind of the present invention mechanism's location drawing front view while getting seedling arm member Fang Miao;
Figure 15 is another kind of the present invention mechanism's location drawing end view while getting seedling arm member Fang Miao;
Figure 16 is the A-A view of Figure 15;
Figure 17 be mechanism of the present invention get seedling orbiting motion simulation drawing.
In figure: 1. lower planet wheel shaft, 2. lower planet non-circular gear, 3. descend jackshaft, 4. descend eccentric gear, 5. central shaft, 6. incomplete non-circular gear, 7. gear-box, 8. go up jackshaft, 9. go up eccentric gear, 10. upper planet non-circular gear, 11. upper planet wheel shafts, 12. upper transplanting arms, 13. power transmission shafts, 14. fovea superior locking arcs, 15. protruding locking arcs, 16. recessed locking arcs, 17. flanges, get seedling arm 18. times, 19. center sprocket wheels, 20. chains, 21. chain-wheel boxs, 22. drive sprockets, 23. pot seedling disks, 24. get seedling pin, 25. get seedling sheet, 26. springs, 27. shift forks, 28. cams, 29. seedling-pushing rods, 30. get seedling pin, 31. get seedling arm housing, 32. " V " shape pushes away seedling pawl, 33. spring bases, 34. get seedling sheet, 35. " U " shape pushes away seedling pawl.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, Figure 2, Fig. 3, Fig. 4, shown in, power is delivered on center sprocket wheel 19 through chain 20 by the drive sprocket 22 being arranged in chain-wheel box 21 on power transmission shaft 13, center sprocket wheel 19 is affixed with central shaft 5, one end of central shaft 5 is fixed with gear-box 7, laterally zygomorphic planet circular system gear mechanism is installed in gear-box 7, stretch out upper transplanting arm 12 that upper planet axle 11 outside gear-box 7 is identical with structure is housed respectively on lower planet axle 1 and under get seedling arm 18; It is characterized in that: the incomplete non-circular gear 6 in gear-box 7 is fixed on a side of chain-wheel box 21 by flange 17, not exclusively non-circular gear 6 is meshed with the upper and lower eccentric gear 9,4 being packed on upper and lower jackshaft 8,3 respectively, and upper and lower eccentric gear 9,4 is meshed with the upper and lower planet non-circular gear 10,2 being packed on upper and lower planet axle 11,1 respectively; Not exclusively the lateral surface of non-circular gear 6 is coaxially connected with protruding locking arc 15, the lateral surface of upper and lower eccentric gear 9,4 is coaxially connected with upper and lower recessed locking arc 14,16 respectively, and not exclusively the protruding locking arc 15 on non-circular gear 6 can match with the upper and lower recessed locking arc 14,16 on upper and lower eccentric gear 9,4 respectively.
As shown in Fig. 5 to Figure 10, described upper transplanting arm 12 with under to get seedling arm 18 structures identical, include spring 26, shift fork 27, cam 28, seedling-pushing rod 29, left and rightly get seedling pin 30,24, get seedling arm housing 31, " V " shape pushes away seedling pawl 32 and spring base 33; Cam 28 is fixed on the outside of gear-box 7, spring base 33 is affixed with seedling-pushing rod 29, and spring 26 is enclosed within seedling-pushing rod 29, and shift fork 27 is arranged on the axle of getting seedling arm housing 31, one end of shift fork 27 is pressed in spring base 33, and the other end of shift fork 27 can contact with cam 28; While pushing away seedling, cam 28 is stirred shift fork 27 and is rotated, spring 26 is compressed by spring base 33 under the effect of shift fork 27, the seedling-pushing rod 29 that shift fork 27 also promotes and spring base 33 is affixed simultaneously moves downward, spring base 33 drives " V " shape affixed with seedling-pushing rod 29 to push away together with seedling pawl 32 and moves downward, the left and right seedling pin 30,24 of getting is opened, realize seedling and push away seedling, prepare for get seedling next time simultaneously; When folder seedling, shift fork 27 and cam 28 disengage, spring 26 resets, reseting procedure medi-spring 26 promotes spring base 33 and moves upward, now also move upward with the affixed seedling-pushing rod 29 of spring base 33, spring base 33 drives " V " shape affixed with seedling-pushing rod 29 to push away together with seedling pawl 32 and moves upward, and the left and right seedling pin 30,24 of getting is clamped, and realizes and presss from both sides seedling.
As shown in Figure 11 to Figure 16, described upper transplanting arm 12 with under to get seedling arm 18 structures identical, include spring 26, shift fork 27, cam 28, seedling-pushing rod 29, left and rightly get seedling sheet 34,25, get seedling arm housing 31, " U " shape pushes away seedling pawl 32 and spring base 33; Cam 28 is fixed on the outside of gear-box 7, spring base 33 is affixed with seedling-pushing rod 29, and spring 26 is enclosed within seedling-pushing rod 29, and shift fork 27 is arranged on the axle of getting seedling arm housing 31, one end of shift fork 27 is pressed in spring base 33, and the other end of shift fork 27 can contact with cam 28; While pushing away seedling, cam 28 is stirred shift fork 27 and is rotated, spring 26 is compressed by spring base 33 under the effect of shift fork 27, the seedling-pushing rod 29 that shift fork 27 also promotes and spring base 33 is affixed simultaneously moves downward, spring base 33 drives " U " shape affixed with seedling-pushing rod 29 to push away together with seedling pawl 32 and moves downward, and left and right getting under the elasticity that seedling sheet 34,25 has at self resets, and makes to get seedling sheet 34,25 and opens, realize seedling and push away seedling, preparing for get seedling next time simultaneously; When folder seedling, shift fork 27 and cam 28 disengage, spring 26 resets, reseting procedure medi-spring 26 promotes spring base 33 and moves upward, now also move upward with the affixed seedling-pushing rod 29 of spring base 33, spring base 33 drives " U " shape affixed with seedling-pushing rod 29 to push away together with seedling pawl 32 and moves upward, and the left and right seedling sheet 34,25 of getting is clamped, and realizes and presss from both sides seedling.
As shown in Figure 2, upper and lower planet non-circular gear 10,2 engages with upper and lower eccentric gear 9,4 conjugation, the pitch curve length of upper and lower eccentric gear 9,4 equates with the pitch curve length of upper and lower planet non-circular gear 10,2, and has the corresponding pitch curve length of toothed portion central angle to equate with incomplete non-circular gear 6.
Described upper and lower planet non-circular gear 10,2 engages with upper and lower eccentric gear 9,4 the non-at the uniform velocity transmission that realizes this seedling picking mechanism; Upper and lower eccentric gear 9,4 engages with incomplete non-circular gear 6 the non-uniform intermittent drive of realizing this mechanism.
One end of described central shaft 5 is fixed with gear-box 7, and the transmission system of upper and lower symmetrical structure is installed in gear-box 7; Be fixed with another gear-box at the other end of central shaft 5, the transmission system (because structure is identical with operation principle, not drawing in Fig. 1) of another upper and lower symmetrical structure is installed in another gear-box 7 simultaneously.
As shown in Figure 1, Figure 2, Figure 3 shows, incomplete non-circular gear 6 centers
with upper and lower eccentric gear 9,4 pivots
,
three on same straight line, upper and lower eccentric gear 9,4 and upper and lower planet non-circular gear 10,2 lines
,
parallel, line
,
can be with respect to line
turn over certain angle, when gear-box 7 gets seedling arm driving shaft around central shaft 5() counterclockwise return while circling, the relative gear-box 7 of uplink and downlink spider gear shaft 11,1 was with (being clockwise direction) revolution in the other direction 1 week, in the time that the speed ratio (pinion ratio) of upper and lower planet non-circular gear 10,2 and upper and lower eccentric gear 9,4 is near maximum, get seedling pin 30,24 or two for two and get seedling sheet 34,25 and enter pot seedling disk 23 and clamp seedling, form and get seedling track A2; At gear-box 7 from the maximum position of speed ratio during to minimum position, form the seedling claw track A3 of clamping seedling, enter from lowest point to seedling pin pot seedling disk 23 these processes at the upper and lower seedling arm 12,18 of getting, protruding locking arc 15 coordinates with upper and lower recessed locking arc 14,16, uplink and downlink spider gear shaft 11,1 does not rotate relative to gear-box 7, the upper and lower seedling arm 12,18 of getting is along with gear-box 7 rotates around central shaft 5 jointly, form centered by central shaft 5, make upper and lower get that seedling arm 12,18 rises to pot seedling disk 23 return to track A1.Gear-box 7 turns around, and the upper and lower seedling arm 12,18 of getting is got seedling once.By the parameter of optimizing structure, make two angle and movement locus requirements of getting movement locus that seedling pin 30,24 or two get seedling sheet 34,25 cusps and meet automatic potted-seedling picking mechanism work, its relative movement orbit of getting seedling pin 30,24 or getting seedling sheet 34,25 cusps, for being similar to the relative movement orbit of " woodpecker " shape, is guaranteed reliably carrying out of automatic potted-seedling picking.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the input power of automatic potted-seedling picking mechanism is delivered to center sprocket wheel 19 by the drive sprocket 22 in seedling picking mechanism chain-wheel box 21, and center sprocket wheel 19 is connected by key with central shaft 5.The annexation of the each assembly of automatic potted-seedling picking mechanism: not exclusively non-circular gear 6 is arranged on central shaft 5 by lining, central shaft 5 axle heads are affixed by spline or square key and gear-box 7, not exclusively non-circular gear 6 relies on jaw flange dish 23 to be fixed on chain-wheel box 21, not exclusively on non-circular gear 6, be connected with protruding locking arc 15, not exclusively the both sides of non-circular gear 6 set gradually, lower eccentric gear 9, 4, on, lower eccentric gear 9, 4 right side has respectively with protruding locking arc 15 realizes coordinate upper, recessed locking arc 14, 16, on, lower eccentric gear 9, 4 by upper, lower jackshaft 8, 3 is affixed, respectively with upper, lower planet non-circular gear 10, 2 engagements, on, lower planet non-circular gear 10, 2 with planet wheel spindle 11, 1 relies on spline coupling, on, lower planet wheel shaft 11, 1 one end of stretching out gear-box 7 is respectively with upper, under get seedling arm member 12, 18 is affixed by key or square shaft.
Operation principle of the present invention is:
As shown in figure 17, Shi Gai mechanism realizes absolute movement track and relative movement orbit.A is the quiet track that this automatic potted-seedling picking mechanism is got seedling needle point point, track when machine is not walked, and B is moving track, i.e. when machine walking, get the track of seedling needle point point, and C is that the seedling seedling position that falls is coiled in cave, and D gets seedling pin position when pushing away seedling, and E is horizon.
Above-mentioned embodiment is used for the present invention that explains, instead of limits the invention, and in the protection domain of spirit of the present invention and claim, any amendment and change that the present invention is made, all fall into protection scope of the present invention.
Claims (4)
1. eccentric gear-not exclusively non-circular gear planetary gear system cave dish seedling seedling picking mechanism, the power of running part is delivered on center sprocket wheel (19) through chain (20) by the drive sprocket (22) being arranged in chain-wheel box (21) on power transmission shaft (13), center sprocket wheel (19) is affixed with central shaft (5), one end of central shaft (5) is fixed with gear-box (7), the planet circular system gear mechanism of upper and lower symmetrical structure is installed in gear-box (7), stretch out upper transplanting arm (12) that the outer upper planet axle (11) of gear-box (7) is identical with structure is housed respectively on lower planet axle (1) and under get seedling arm (18), it is characterized in that: the incomplete non-circular gear (6) in gear-box (7) is fixed on a side of chain-wheel box (21) by flange (17), not exclusively non-circular gear (6) is meshed with the upper and lower eccentric gear (9,4) being packed on upper and lower jackshaft (8,3) respectively, and upper and lower eccentric gear (9,4) is meshed with the upper and lower planet non-circular gear (10,2) being packed on upper and lower planet axle (11,1) respectively, not exclusively the lateral surface of non-circular gear (6) is coaxially connected with protruding locking arc (15), the lateral surface of upper and lower eccentric gear (9,4) is coaxially connected with upper and lower recessed locking arc (14,16) respectively, and not exclusively the protruding locking arc (15) on non-circular gear (6) can match with the upper and lower recessed locking arc (14,16) on upper and lower eccentric gear (9,4) respectively, upper transplanting arm (12) and under get seedling arm (18) and have two kinds of structures:
1) a kind of upper transplanting arm (12) with under to get seedling arm (18) structure identical, include and get seedling arm housing (31), cam (28), shift fork (27), spring (26), seedling-pushing rod (29), left and rightly get seedling pin (30,24), " V " shape pushes away seedling pawl (32) and spring base (33); Cam (28) is fixed on the outside of gear-box (7), spring base (33) is affixed with seedling-pushing rod (29), spring (26) is enclosed within seedling-pushing rod (29), shift fork (27) is arranged on the axle of getting seedling arm housing (31), one end of shift fork (27) is pressed in spring base (33), and the other end of shift fork (27) can contact with cam (28); While pushing away seedling, cam (28) is stirred shift fork (27) and is rotated, spring (26) is compressed by spring base (33) under the effect of shift fork (27), the seedling-pushing rod (29) that shift fork (27) also promotes and spring base (33) is affixed simultaneously moves downward, spring base (33) drives " V " shape affixed with seedling-pushing rod (29) to push away together with seedling pawl (32) and moves downward, the left and right seedling pin (30,24) of getting is opened, realization pushes away seedling and falls seedling, prepares for get seedling next time simultaneously; When folder seedling, shift fork (27) and cam (28) disengage, spring (26) resets, reseting procedure medi-spring (26) promotes spring base (33) and moves upward, now also move upward with the affixed seedling-pushing rod (29) of spring base (33), spring base (33) drives " V " shape affixed with seedling-pushing rod (29) to push away together with seedling pawl (32) and moves upward, the left and right seedling pin (30,24) of getting is clamped, realize folder seedling;
2) another kind of upper transplanting arm (12) with under to get seedling arm (18) structure identical, include and get seedling arm housing (31), cam (28), shift fork (27), spring (26), seedling-pushing rod (29), left and rightly get seedling sheet (34,25), " U " shape pushes away seedling pawl (35) and spring base (33), cam (28) is fixed on the outside of gear-box (7), spring base (33) is affixed with seedling-pushing rod (29), spring (26) is enclosed within seedling-pushing rod (29), shift fork (27) is arranged on the axle of getting seedling arm housing (31), one end of shift fork (27) is pressed in spring base (33), and the other end of shift fork (27) can contact with cam (28), while pushing away seedling, cam (28) is stirred shift fork (27) and is rotated, spring (26) is compressed by spring base (33) under the effect of shift fork (27), the seedling-pushing rod (29) that shift fork (27) also promotes and spring base (33) is affixed simultaneously moves downward, spring base (33) drives " U " shape affixed with seedling-pushing rod (29) to push away together with seedling pawl (35) and moves downward, left, seedling sheet (34 is got on the right side, 25) under the elasticity having at self, reset, make to get seedling sheet (34, 25) open, realization pushes away seedling and falls seedling, prepare for get seedling next time simultaneously, when folder seedling, shift fork (27) and cam (28) disengage, spring (26) resets, reseting procedure medi-spring (26) promotes spring base (33) and moves upward, now also move upward with the affixed seedling-pushing rod (29) of spring base (33), spring base (33) drives " U " shape affixed with seedling-pushing rod (29) to push away together with seedling pawl (35) and moves upward, the left and right seedling sheet (34,25) of getting is clamped, realize folder seedling.
2. a kind of eccentric gear according to claim 1-not exclusively non-circular gear planetary gear system cave dish seedling seedling picking mechanism, it is characterized in that: described upper and lower eccentric gear (9,4) engages with upper and lower planet non-circular gear (10,2) conjugation, the pitch curve length of upper and lower eccentric gear (9,4) equates with the pitch curve length of upper and lower planet non-circular gear (10,2), and has the corresponding pitch curve length of toothed portion central angle to equate with incomplete non-circular gear (6).
3. a kind of eccentric gear according to claim 1-not exclusively non-circular gear planetary gear system cave dish seedling seedling picking mechanism, is characterized in that: described upper and lower planet non-circular gear (10,2) engages with upper and lower eccentric gear (9,4) the non-at the uniform velocity transmission that realizes this seedling picking mechanism; Upper and lower eccentric gear (9,4) engages with incomplete non-circular gear (6) the non-uniform intermittent drive of realizing this mechanism.
4. a kind of eccentric gear according to claim 1-not exclusively non-circular gear planetary gear system cave dish seedling seedling picking mechanism, it is characterized in that: one end of described central shaft (5) is fixed with gear-box (7), and the planet circular system gear mechanism of upper and lower symmetrical structure is installed in gear-box (7); Be fixed with another gear-box at the other end of central shaft (5), the planet circular system gear mechanism of another upper and lower symmetrical structure is installed in another gear-box (7) simultaneously.
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| CN201110270973.3A CN102428785B (en) | 2011-09-14 | 2011-09-14 | Eccentric gear-incomplete non-circular gear planetary gear plug seedling picking mechanism |
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