CN206713377U - Helical gear planetary gear train seedling picking mechanism - Google Patents
Helical gear planetary gear train seedling picking mechanism Download PDFInfo
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- CN206713377U CN206713377U CN201720385621.5U CN201720385621U CN206713377U CN 206713377 U CN206713377 U CN 206713377U CN 201720385621 U CN201720385621 U CN 201720385621U CN 206713377 U CN206713377 U CN 206713377U
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Abstract
The utility model discloses helical gear planetary gear train seedling picking mechanism.There is an urgent need to simple in construction, stable drive seedling picking mechanism at present.The utility model includes central shaft, planet carrier, jaw flange, the incomplete central gear in center, first jackshaft, second jackshaft, first middle elliptic gear, second middle elliptic gear, first middle helical gear, second middle helical gear, first planet axis, second planet axis, first epicyclic singleplent helical gear, second epicyclic singleplent helical gear, convex Locking arc, first recessed Locking arc, second recessed Locking arc, sun gear buffer unit, first breast wheel buffer unit, second breast wheel buffer unit and transplanting arm.The utility model gear drive afterbody uses helical gear mode, and gearratio is more steady, and shock and vibration and noise are smaller, without eliminate backlash device.
Description
Technical field
The utility model belongs to agricultural mechanical field, is related to a kind of vegetables seedling picking mechanism, and in particular to a kind of helical gear row
Star wheel series seedling picking mechanism.
Background technology
Transplanting is one of important step in vegetables production process, transplanting have make crop growth ahead of time and the benefit to weather
The comprehensive benefit of effect is repaid, sunlight-heat reaources can be made full use of, its economic and social profit is considerable.At present, it is domestic
Some transplanters are all based on automanual, and semi-automatic transplanter manually feeds seedling, and working strength is big, inefficient, works as cultivation
When plant speed is higher, leakage seedling, missing seedling rate greatly increase, and still can not meet the plant needs of people.A small number of units have also been developed
Go out all automatic vegetables transplanter, seedling picking mechanism as its core component, it is necessary to complete seedling taking, hold seedling, push away seedling and the action of backhaul,
Because current seedling picking mechanism has the shortcomings of complicated, manufacturing cost is high, fail to be applied and promote.Therefore, seedling taking
Mechanism development turn into China's vegetable cultivation industry development there is an urgent need to.
The content of the invention
The purpose of this utility model is in view of the shortcomings of the prior art, there is provided a kind of helical gear planetary gear train seedling picking mechanism,
Seedling taking can be realized, seedling is held, pushes away seedling and the job requirement of backhaul, and the seedling picking mechanism physical dimension is relatively small, structure is relatively simple
It is single, stable drive.
To achieve the above object, the technical solution adopted in the utility model is：
The utility model include central shaft, planet carrier, jaw flange, the incomplete central gear in center, the first jackshaft,
Second jackshaft, the first middle elliptic gear, the second middle elliptic gear, the first middle helical gear, the second middle helical gear,
One planet axis, the second planet axis, the first epicyclic singleplent helical gear, the second epicyclic singleplent helical gear, convex Locking arc, the first recessed Locking arc, second
Recessed Locking arc, sun gear buffer unit, the first breast wheel buffer unit, the second breast wheel buffer unit and transplanting arm.Described
Planet carrier includes the casing and case lid being bolted；Central shaft one end is connected with power set, the other end and sleeve lining
Coordinate；Axle sleeve outer wall coordinates with case lid；The feather key notch that central shaft opens up is connected with the positioning hole that axle sleeve opens up by feather key；It is sliding
The cross section of key is in major arc arch；Jaw flange one end is fixed with transplant machine rack, the other end and the incomplete sun tooth in center
Take turns castellated cooperation；Casing is supported on jaw flange by bearing, and the bearing outer ring is positioned by cabinet wall, inner ring and set
Cylinder end thereof contacts, the end contact of the sleeve other end and the incomplete central gear in center；Jaw flange and center are not exclusively too
The positive equal empty set of gear is on center shaft；Described the first jackshaft, the second jackshaft are symmetricly set on central shaft both sides, and with
Planet carrier is connected by bearing；First middle helical gear and the first middle elliptic gear are each attached on the first jackshaft, and second
Middle elliptic gear and the second middle helical gear are each attached on the second jackshaft；First planet axis, the second planet axial symmetry are set
Planet carrier both ends are put, and are connected with planet carrier by bearing；First epicyclic singleplent helical gear is connected with the first planet axis by spline
Connect, the second epicyclic singleplent helical gear is connected with the second planet axis by spline；Planet is stretched out in first planet axis, one end of the second planet axis
Transplant arm housing outside frame respectively with a transplanting arm is fixed.Described sun gear buffer unit and convex Locking arc are separately fixed at
The incomplete central gear both sides in center, the first breast wheel buffer unit and the first recessed Locking arc are separately fixed at oval among first
Gear both sides, the second breast wheel buffer unit and the second recessed Locking arc are separately fixed at the second middle elliptic gear both sides.First
Middle helical gear is connected with the first epicyclic singleplent helical gear by gear pair, and the second middle helical gear and the second epicyclic singleplent helical gear pass through tooth
Wheel set connects.Incomplete not rounded central gear engage the beginning previous second with the first middle elliptic gear, sun gear buffer unit and
First breast wheel buffer unit frictional drive；When incomplete not rounded central gear separates with the first middle elliptic gear, convex locking
Arc and the first recessed Locking arc frictional drive；Non-circular gear toothed portion engages with the second middle elliptic gear starts previous second, the sun
Take turns buffer unit and the second breast wheel buffer unit frictional drive；Incomplete not rounded central gear and the second middle elliptic gear point
From when, convex Locking arc and the second recessed Locking arc frictional drive.The rubbing surface of convex Locking arc is outer convex arc surface；First recessed Locking arc
Completely the same with the shape of the second recessed Locking arc, rubbing surface is interior concaved circular cambered surface；The outer convex arc surface arc length of convex Locking arc is big
In the first recessed Locking arc and the interior concaved circular cambered surface arc length of the second recessed Locking arc, and the outer convex arc surface radius of convex Locking arc is equal to the
The interior concaved circular cambered surface radius of one recessed Locking arc and the second recessed Locking arc.Sun gear buffer unit, the first breast wheel buffer unit and
The rubbing surface of second breast wheel buffer unit is outer convex arc surface, and arc length is equal to the first recessed Locking arc or the second recessed locking
/ 10th of the interior concaved circular cambered surface arc length of arc；Sun gear buffer unit, the first breast wheel buffer unit and the second breast wheel delay
The outer convex arc surface radius of flushing device is equal to the interior concaved circular cambered surface radius of the first recessed Locking arc or the second recessed Locking arc very
One of.
Described transplanting arm includes transplanting arm cam, transplant arm housing, transplant arm housing location-plate, case lid, transplanting arm
Shift fork, transplanting arm shift fork axle, spring base, transplanting arm spring, seedling-pushing rod, seedling pawl, seedling pin location-plate, the first seedling pin rotatable lamella,
Second seedling pin rotatable lamella, the first seedling pin and the second seedling pin.Transplanting arm cam is bolted with case lid；Transplant arm housing positions
Plate is bolted with transplant arm housing, the transplant arm housing location-plates of two transplanting arms respectively with the first planet axis, second
Planet axis is connected by flat key；It is hinged in the middle part of transplanting arm shift fork by transplanting arm shift fork axle in transplant arm housing, one end is with moving
Plant arm cam and form cam pair, the other end is cylinder；The deep-slotted chip breaker that cylinder opens up is nested with spring base, outside cylinder
Two end boss of disc and spring base form rolling friction pair；Seedling-pushing rod one end is connected through a screw thread with spring base, the other end
Stretch out outside transplant arm housing and seedling pawl is welded；Transplanting arm spring housing is on seedling-pushing rod, and one end is spacing by the flange of spring base, separately
One end is spacing by transplant arm housing；Case lid is fixed in transplant arm housing, spacing to spring base；Seedling pin location-plate is fixed on shifting
Plant outside arm housing；First seedling pin rotatable lamella and the second seedling pin rotatable lamella are hinged on seedling pin location-plate both sides, the first seedling by latch
The afterbody of pin is fixed with the first seedling pin rotatable lamella, and the afterbody of the second seedling pin is fixed with the second seedling pin rotatable lamella；First seedling pin and
The head of two seedling pins is respectively embedded into two mounting holes that seedling pawl both sides open up.
The first described middle helical gear and the first epicyclic singleplent helical gear are parallel axes engaged transmission, the second middle helical gear with
Second epicyclic singleplent helical gear is parallel axes engaged transmission, and the first middle helical gear and the first planet are helical gear oppositely oriented, the
Two middle helical gears are oppositely oriented with the second epicyclic singleplent helical gear, and what the first seedling pin of seedling claw or the second seedling needle point point were formed takes
Seedling track is planar obit simulation.
There is latch closure on the head of the seedling pick-up trajectory, and from head cusp to pot seedling disk, top is seedling taking section, and seedling taking segment length is
36mm。
The incomplete central gear in the center, the number of teeth of the first middle elliptic gear and the second middle elliptic gear, modulus,
The girth all same of pitch circle.
The utility model has an advantageous effect in that：
1st, the utility model can realize that variable speed is driven, and transplant arm cusp can export the seedling pick-up trajectory for meeting agriculture requirement.
2nd, the utility model gear drive afterbody uses helical gear mode, and gearratio is more steady, impacts, shakes
Dynamic and noise is smaller, without eliminate backlash device.
3rd, the utility model is arranged symmetrically scheme using two transplanting arms, and planet carrier rotates a circle, and realizes seedling taking twice, work
It is higher to make efficiency, it is simple in construction, compact, safe and reliable, manufacturing cost is low.
Brief description of the drawings
Fig. 1 is overall structure sectional view of the present utility model；
Fig. 2 is operation principle schematic diagram of the present utility model；
Fig. 3 is engaged transmission schematic diagram of the present utility model；
Fig. 4-1 is the assembling schematic diagram of transplanting arm in the utility model；
Fig. 4-2 is the external structure schematic diagram of transplanting arm in the utility model；
Fig. 5 is seedling pick-up trajectory schematic diagram when the utility model follows the transplant machine rack to walk.
In figure：1. transplanting arm, 2. first epicyclic singleplent helical gears, 3. first planet axis, 4. casings, 5. first breast wheels buffering dress
Put, 6. first recessed Locking arcs, 7. first middle helical gears, 8. first middle elliptic gears, 9. first jackshafts, 10. planet carriers,
11. convex Locking arc, the incomplete central gear in 12. centers, 13. sun gear buffer units, 14. jaw flanges, 15. central shafts,
16. the second middle elliptic gear, 17. second jackshafts, 18. second recessed Locking arcs, 19. second middle helical gears, in 20. second
Between take turns buffer unit, 21. case lids, 22. second planet axis, 23. second epicyclic singleplent helical gears, 24. pot seedling disks, 25. case lids, 26.
Spring base, 27. transplanting arm bullet springs, 28. seedling-pushing rods, 29. seedling pawls, 30. transplanting arm shift fork axles, 31. transplanting arm shift forks, 32.
Transplanting arm cam, 33. transplant arm housings, 34. transplant arm housing location-plates, 35. first seedling pin rotatable lamellas, 36. first seedling pins,
37. the second seedling pin, 38. second seedling pin rotatable lamellas, 39. seedling pin location-plates, 40. seedling pick-up trajectories.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1,2 and 3, helical gear planetary gear train seedling picking mechanism, including central shaft 15, planet carrier 10, castellated method
Orchid 14, the incomplete central gear 12 in center, the first jackshaft 9, the second jackshaft 17, among the first middle elliptic gear 8, second
Elliptic gear 16, the first middle helical gear 7, the second middle helical gear 19, the first planet axis 3, the second planet axis 22, the first planet
Helical gear 2, the second epicyclic singleplent helical gear 23, convex Locking arc 11, the first recessed Locking arc 6, the second recessed Locking arc 18, sun gear buffering dress
Put the 13, first breast wheel buffer unit 5, the second breast wheel buffer unit 20 and transplanting arm 1.Planet carrier 10 includes connecting by bolt
The casing 4 and case lid 21 connect；The one end of central shaft 15 is connected with power set, and the other end coordinates with sleeve lining；Axle sleeve outer wall with
Case lid 21 coordinates；The feather key notch that central shaft 15 opens up is connected with the positioning hole that axle sleeve opens up by feather key；The cross section of feather key
In major arc arch, the reliable location circumferential with axle sleeve of central shaft 15 is realized；The one end of jaw flange 14 is fixed with transplant machine rack,
The other end and the incomplete 12 castellated cooperation of central gear in center；Casing 4 is supported on jaw flange 14 by bearing, the axle
Bearing outer-ring is positioned by the inwall of casing 4, inner ring and sleeve end thereof contacts, the end of the sleeve other end and the incomplete central gear 12 in center
Face contacts；The incomplete 12 equal empty set of central gear of jaw flange 14 and center is on center shaft；In first jackshaft 9, second
Countershaft 17 is symmetricly set on the both sides of central shaft 15, and is connected with planet carrier 10 by bearing；First middle helical gear 7 and first
Middle elliptic gear 8 is each attached on the first jackshaft 9, and the second middle 16 and second middle helical gear 19 of elliptic gear is fixed
On the second jackshaft 17；First planet axis 3, the second planet axis 22 are symmetrical arranged the both ends of planet carrier 10, and and planet carrier
10 are connected by bearing；First epicyclic singleplent helical gear 2 is connected with the first planet axis 3 by spline, the second epicyclic singleplent helical gear 23 and
Two planet axis 22 are connected by spline；First planet axis 3, one end of the second planet axis 22 are stretched out outside planet carrier to be moved with one respectively
The transplant arm housing 33 for planting arm 1 is fixed.Sun gear buffer unit 13 and convex Locking arc 11 are separately fixed at the incomplete sun in center
The both sides of gear 12, the first breast wheel buffer unit 5 and the first recessed Locking arc 6 are separately fixed at the first middle both sides of elliptic gear 8,
Second breast wheel buffer unit 20 and the second recessed Locking arc 18 are separately fixed at the second middle both sides of elliptic gear 16.Among first
Helical gear 7 is connected with the first epicyclic singleplent helical gear 2 by gear pair, and the second middle helical gear 19 passes through with the second epicyclic singleplent helical gear 23
Gear pair connects.Incomplete not rounded central gear 12 engages with the first middle elliptic gear 8 starts the previous second, sun gear buffering dress
Put 13 and the frictional drive of the first breast wheel buffer unit 5；Incomplete not rounded central gear 12 separates with the first middle elliptic gear 8
When, the frictional drive of 11 and first recessed Locking arc of convex Locking arc 6；Non-circular gear toothed portion 12 engages with the second middle elliptic gear 16
Start previous second, the frictional drive of 13 and second breast wheel buffer unit of sun gear buffer unit 20；Incomplete not rounded central gear
12 with the second middle elliptic gear 16 when separating, the frictional drive of 11 and second recessed Locking arc of convex Locking arc 18.Convex Locking arc 11
Rubbing surface is outer convex arc surface；The shape of first recessed Locking arc 6 and the second recessed Locking arc 18 is completely the same, and rubbing surface is indent
Arc surface；The outer convex arc surface arc length of convex Locking arc 11 is more than the interior concave arc of the first recessed Locking arc 6 and the second recessed Locking arc 18
Face arc length, and the outer convex arc surface radius of convex Locking arc 11 is equal to the indent circle of the first recessed Locking arc 6 and the second recessed Locking arc 18
Cambered surface radius.The rubbing surface of sun gear buffer unit 13, the first breast wheel buffer unit 5 and the second breast wheel buffer unit 20 is equal
For outer convex arc surface, and arc length is equal to the interior concaved circular cambered surface arc length of the first recessed Locking arc 6 or the second recessed Locking arc 18 very
One of；The outer convex arc surface of sun gear buffer unit 13, the first breast wheel buffer unit 5 and the second breast wheel buffer unit 20 half
Footpath is equal to 1/10th of the interior concaved circular cambered surface radius of the first recessed Locking arc 6 or the second recessed Locking arc 18.
As shown in Fig. 2 planet carrier 10 rotates counterclockwise, it is driven by the variable speed of planetary system, the first seedling of seedling claw 15
The cusp of 36 or second seedling pin of pin 37 forms seedling pick-up trajectory 40；There is latch closure on the head of seedling pick-up trajectory, from head cusp to pot seedling disk 24
Top is seedling taking section, and seedling taking segment length is 36mm.
As shown in Fig. 4-1 and 4-2, transplanting arm 1 includes transplanting arm cam 32, transplant arm housing 33, transplant arm housing positioning
Plate 34, case lid 25, transplanting arm shift fork 31, transplanting arm shift fork axle 30, spring base 26, transplanting arm spring 27, seedling-pushing rod 28, push away seedling
Pawl 29, seedling pin location-plate 39, the first seedling pin rotatable lamella 35, the second seedling pin rotatable lamella 38, the first seedling pin 36 and the second seedling pin 37.Move
Arm cam 32 is planted to be bolted with case lid 21；Transplant arm housing location-plate 34 is bolted with transplant arm housing 33,
The transplant arm housing location-plate 34 of two transplanting arms is connected with the first planet axis 3, the second planet axis 22 by flat key respectively；Transplanting
The middle part of arm shift fork 31 is hinged in transplant arm housing 33 by transplanting arm shift fork axle 30, and one end forms cam with transplanting arm cam 32
Pair, the other end are cylinder；The deep-slotted chip breaker that cylinder opens up is nested with spring base 26, periphery and the spring base 26 of cylinder
Two end boss form rolling friction pair；The one end of seedling-pushing rod 28 is connected through a screw thread with spring base 26, and the other end stretches out transplanting
Arm housing 33 is outer to be welded with seedling pawl 29；Transplanting arm spring 27 is enclosed on seedling-pushing rod, and one end is spacing by the flange of spring base 26, separately
One end is spacing by transplant arm housing 33；Case lid 25 is fixed in transplant arm housing 33, spacing to spring base 26；Seedling pin location-plate
39 are fixed on outside transplant arm housing 33；First seedling pin rotatable lamella 35 and the second seedling pin rotatable lamella 38 are hinged on seedling pin by latch and determined
The position both sides of plate 39, the afterbody of the first seedling pin 36 are fixed with the first seedling pin rotatable lamella 35, the afterbody of the second seedling pin 37 and the second seedling pin
Rotatable lamella 38 is fixed；The head of first seedling pin 36 and the second seedling pin 37 is respectively embedded into two mounting holes that the both sides of seedling pawl 29 open up
It is interior.
The incomplete central gear in center, the number of teeth of the first middle 8 and second middle elliptic gear 16 of elliptic gear, modulus,
The girth all same of pitch circle.
The first middle epicyclic singleplent helical gear 2 of helical gear 7 and first is parallel axes engaged transmission, the second middle helical gear 19 and
Two epicyclic singleplent helical gears 23 are parallel axes engaged transmission, and the first middle helical gear 7 and the first epicyclic singleplent helical gear 2 is oppositely oriented,
Second middle helical gear 19 is oppositely oriented with the second epicyclic singleplent helical gear 23, and the seedling pick-up trajectory 40 of formation is planar obit simulation.
The operation principle of the helical gear planetary gear train seedling picking mechanism：
Power is transmitted to planet carrier 10 through central shaft 15, drives planet carrier 10 to rotate；Jaw flange 14 and center are incomplete
Central gear 12 is fixedly connected, and empty set is fixedly connected on central shaft 15, and with frame；The two of the incomplete central gear 12 in center
Side is engaged with the first middle elliptic gear 8, the second middle elliptic gear 16 respectively, and the first middle helical gear 7 and the first planet is oblique
Gear 2 engages, and the second middle helical gear 19 engages with the second epicyclic singleplent helical gear 23；Planet carrier 10, which rotates, drives ellipse among first
Gear 8, the second middle elliptic gear 16, the first middle helical gear 7, the second middle helical gear 19, the first epicyclic singleplent helical gear 2,
Two epicyclic singleplent helical gears 23 revolve round the sun, it is achieved thereby that the variable speed transmission of transplanting arm 1.
When planet carrier, which turns to, pushes away seedling position, the transplanting arm shift fork 31 in transplanting arm is pushed away by transplanting arm cam 32
It is dynamic, transplanting arm shift fork 31 is rotated, the head movement with flexible spring seat 26 and seedling-pushing rod 28 to seedling pawl 29, the first seedling pin 36,
Second seedling pin 37 opens in the presence of seedling pawl 29, and pot seedling comes off, and seedling pawl 29 is completed to push away seedling action.When planet carrier 10 rotates
During to seedling taking position, transplanting arm shift fork 31 is in nearly the stop section, in the presence of transplanting arm spring 27, bullet of transplanting arm cam 32
Spring abutment 26, seedling-pushing rod 28 and seedling pawl 29 return to initial position, the first seedling pin 36, the second seedling pin 37 seedling pawl 29 effect
Lower clamping pot seedling, completion seedling taking act and are to push away seedling next time to prepare.
The utility model follows the seedling pick-up trajectory that transplant machine rack is realized when walking as shown in figure 5, wherein, a is transplanting
The simplification structure of arm, b are the first seedling pin of seedling claw 15 or the seedling pick-up trajectory of the second seedling needle point point, c when transplant machine rack is walked
For rice shoot, d is ground.
Above-mentioned embodiment is used for illustrating the utility model, rather than the utility model is limited,
Spirit of the present utility model and any modifications and changes in scope of the claims, made to the utility model, all fall
Enter the scope of protection of the utility model.
Claims (3)
1. helical gear planetary gear train seedling picking mechanism, including central shaft, planet carrier, jaw flange, the incomplete central gear in center,
In first jackshaft, the second jackshaft, the first middle elliptic gear, the second middle elliptic gear, the first middle helical gear, second
Between helical gear, the first planet axis, the second planet axis, the first epicyclic singleplent helical gear, the second epicyclic singleplent helical gear, convex Locking arc, first recessed
Locking arc, the second recessed Locking arc, sun gear buffer unit, the first breast wheel buffer unit, the second breast wheel buffer unit and shifting
Plant arm；It is characterized in that：Described planet carrier includes the casing and case lid being bolted；Central shaft one end and power set
Connection, the other end coordinate with sleeve lining；Axle sleeve outer wall coordinates with case lid；What the feather key notch that central shaft opens up opened up with axle sleeve
Positioning hole is connected by feather key；The cross section of feather key is in major arc arch；Jaw flange one end is fixed with transplant machine rack, another
End and the castellated cooperation of the incomplete central gear in center；Casing is supported on jaw flange by bearing, the bearing outer ring by
Cabinet wall positions, inner ring and sleeve end thereof contacts, the end contact of the sleeve other end and the incomplete central gear in center；Dental inlay
The equal empty set of the incomplete central gear of formula flange and center is on center shaft；Described the first jackshaft, the second middle axial symmetry are set
Put in central shaft both sides, and be connected with planet carrier by bearing；First middle helical gear and the first middle elliptic gear are solid
It is scheduled on the first jackshaft, the second middle elliptic gear and the second middle helical gear are each attached on the second jackshaft；The first row
Star axle, the second planet axis are symmetrical arranged planet carrier both ends, and are connected with planet carrier by bearing；First epicyclic singleplent helical gear with
First planet axis is connected by spline, and the second epicyclic singleplent helical gear is connected with the second planet axis by spline；First planet axis, second
The transplant arm housing that one end of planet axis stretches out outside planet carrier respectively with a transplanting arm is fixed；Described sun gear buffer unit
The incomplete central gear both sides in center, the first breast wheel buffer unit and the first recessed Locking arc point are separately fixed at convex Locking arc
The first middle elliptic gear both sides are not fixed on, and the second breast wheel buffer unit and the second recessed Locking arc are separately fixed in second
Between elliptic gear both sides；First middle helical gear is connected with the first epicyclic singleplent helical gear by gear pair, the second middle helical gear with
Second epicyclic singleplent helical gear is connected by gear pair；It is previous that incomplete not rounded central gear engages beginning with the first middle elliptic gear
Second, sun gear buffer unit and the first breast wheel buffer unit frictional drive；It is ellipse among incomplete not rounded central gear and first
When Knucle-gear separates, convex Locking arc and the first recessed Locking arc frictional drive；Non-circular gear toothed portion and the second middle elliptic gear
Engagement starts previous second, sun gear buffer unit and the second breast wheel buffer unit frictional drive；Incomplete not rounded central gear
When being separated with the second middle elliptic gear, convex Locking arc and the second recessed Locking arc frictional drive；The rubbing surface of convex Locking arc is outer
Convex arc surface；The shape of first recessed Locking arc and the second recessed Locking arc is completely the same, and rubbing surface is interior concaved circular cambered surface；Convex locking
The outer convex arc surface arc length of arc is more than the interior concaved circular cambered surface arc length of the first recessed Locking arc and the second recessed Locking arc, and convex Locking arc
Outer convex arc surface radius is equal to the interior concaved circular cambered surface radius of the first recessed Locking arc and the second recessed Locking arc；Sun gear buffer unit,
The rubbing surface of first breast wheel buffer unit and the second breast wheel buffer unit is outer convex arc surface, and arc length is equal to first
/ 10th of the interior concaved circular cambered surface arc length of recessed Locking arc or the second recessed Locking arc；Sun gear buffer unit, the first breast wheel delay
The outer convex arc surface radius of flushing device and the second breast wheel buffer unit is equal to the first recessed Locking arc or the second recessed Locking arc
/ 10th of interior concaved circular cambered surface radius；
Described transplanting arm include transplanting arm cam, transplant arm housing, transplant arm housing location-plate, case lid, transplanting arm shift fork,
Transplanting arm shift fork axle, spring base, transplanting arm spring, seedling-pushing rod, seedling pawl, seedling pin location-plate, the first seedling pin rotatable lamella, the second seedling
Pin rotatable lamella, the first seedling pin and the second seedling pin；Transplanting arm cam is bolted with case lid；Transplant arm housing location-plate is with moving
Arm housing is planted to be bolted, the transplant arm housing location-plates of two transplanting arms respectively with the first planet axis, the second planet axis
Connected by flat key；It is hinged in the middle part of transplanting arm shift fork by transplanting arm shift fork axle in transplant arm housing, one end is convex with transplanting arm
Wheel forms cam pair, and the other end is cylinder；The deep-slotted chip breaker that cylinder opens up is nested with spring base, the periphery of cylinder with
Two end boss of spring base form rolling friction pair；Seedling-pushing rod one end is connected through a screw thread with spring base, and the other end, which stretches out, to be moved
Plant outside arm housing and seedling pawl is welded；For transplanting arm spring housing on seedling-pushing rod, one end is spacing by the flange of spring base, the other end by
Transplant arm housing is spacing；Case lid is fixed in transplant arm housing, spacing to spring base；Seedling pin location-plate is fixed on transplanting arm shell
In vitro；First seedling pin rotatable lamella and the second seedling pin rotatable lamella are hinged on seedling pin location-plate both sides, the tail of the first seedling pin by latch
Portion is fixed with the first seedling pin rotatable lamella, and the afterbody of the second seedling pin is fixed with the second seedling pin rotatable lamella；First seedling pin and the second seedling pin
Head be respectively embedded into two mounting holes that seedling pawl both sides open up；
The first described middle helical gear and the first epicyclic singleplent helical gear are parallel axes engaged transmission, the second middle helical gear and second
Epicyclic singleplent helical gear is parallel axes engaged transmission, and the first middle helical gear and the first planet are helical gear oppositely oriented, in second
Between helical gear and the second epicyclic singleplent helical gear oppositely oriented, the seedling taking rail that the first seedling pin of seedling claw or the second seedling needle point point are formed
Mark is planar obit simulation.
2. helical gear planetary gear train seedling picking mechanism according to claim 1, it is characterised in that：The head of the seedling pick-up trajectory
There is latch closure, top is seedling taking section from head cusp to pot seedling disk, and seedling taking segment length is 36mm.
3. helical gear planetary gear train seedling picking mechanism according to claim 1, it is characterised in that：The incomplete sun in center
Gear, the number of teeth of the first middle elliptic gear and the second middle elliptic gear, modulus, the girth all same of pitch circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720385621.5U CN206713377U (en) | 2017-04-13 | 2017-04-13 | Helical gear planetary gear train seedling picking mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720385621.5U CN206713377U (en) | 2017-04-13 | 2017-04-13 | Helical gear planetary gear train seedling picking mechanism |
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| CN206713377U true CN206713377U (en) | 2017-12-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112673775A (en) * | 2020-12-31 | 2021-04-20 | 黑龙江省农垦科学院 | Star-fan type seedling taking mechanism for rice pot seedling planting |
-
2017
- 2017-04-13 CN CN201720385621.5U patent/CN206713377U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112673775A (en) * | 2020-12-31 | 2021-04-20 | 黑龙江省农垦科学院 | Star-fan type seedling taking mechanism for rice pot seedling planting |
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