CN207219369U - A kind of modified elliptical gear planetary system three-jaw vegetable transplanting mechanism - Google Patents
A kind of modified elliptical gear planetary system three-jaw vegetable transplanting mechanism Download PDFInfo
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- CN207219369U CN207219369U CN201721045802.XU CN201721045802U CN207219369U CN 207219369 U CN207219369 U CN 207219369U CN 201721045802 U CN201721045802 U CN 201721045802U CN 207219369 U CN207219369 U CN 207219369U
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Abstract
The utility model discloses a kind of modified elliptical gear planetary system three-jaw vegetable transplanting mechanism.The seedling angle that pushes away of domestic transplanting mechanism generally can only achieve 40 ° with seedling taking angle differential seat angle.The utility model includes incomplete modified elliptical gear, first middle modified elliptical gear, second middle modified elliptical gear, 3rd middle modified elliptical gear, first planet modified elliptical gear, second planet modified elliptical gear, third planet modified elliptical gear, convex Locking arc plate, first recessed Locking arc plate, second recessed Locking arc plate, 3rd recessed Locking arc plate, sun gear buffering arc plate, first breast wheel buffering arc plate, second breast wheel buffering arc plate, 3rd breast wheel buffering arc plate, eliminate backlash device and transplanting arm；The cam profile of transplanting arm cam includes seedling taking section, holds seedling section, pushes away seedling section and reply section；Seedling taking section includes seedling claw contraction section, seedling claw shrinks maintaining segment and seedling claw rapidly clamp segment.The utility model can realize the differential seat angle of 50 ° of pushing away seedling angles and seedling taking angle.
Description
Technical field
The utility model belongs to agricultural mechanical field, is related to transplanting mechanism, and in particular to a kind of modified elliptical gear planet
It is three-jaw vegetable transplanting mechanism.
Background technology
The transplanting of vegetables is link important in vegetables production planting process, and vegetable transplanting machinery mainly has rotation at present
The various transplanters such as formula, clamp type, chain-clip type, flexible disk formula, suppending cup type, seedling guide tube type, but these transplanters rest on more
Suspended-type work is horizontal, it is also necessary to which farm work could be carried out by being equipped with corresponding tractor.
With the development of mechanization of agriculture, transplanting at a high speed is inexorable trend.Though all automatic vegetables transplanter currently on the market
It can so realize automatically capturing seedling, but transplanting work is respectively adopted different mechanisms and resolves into three action completions, it is complicated,
Cause when running speed is higher seedling-damaging ratio and seedling-leaking ratio increase, operation quality it is difficult to ensure that；Domestic transplanting mechanism uses two substantially
A transplanting arm configuration, pushes away seedling angle and the differential seat angle at seedling taking angle generally can only achieve 40 °, and absolute dynamic rail mark upright degree is bad, transplanting
Arm backhaul easily rewinds seedling, greatly constrains the high speed development of China's vegetable transplanting.The pot vegetable seedlings transplanting that foreign countries introduce
Mechanism does not only exist expensive, and complicated, nursery requires the problems such as high, and to a certain extent with the current vegetables in China
Actual production present situation is incompatible.
The content of the invention
The utility model is in view of the deficiencies of the prior art, there is provided a kind of modified elliptical gear planetary system three-jaw vegetable transplanting machine
Structure, using three transplanting arm configurations, and can realize the differential seat angle of 50 ° of pushing away seedling angles and seedling taking angle, transplant work efficiency and seedling taking
Success rate is high, and planting effect is more preferable, can effectively realize that pot vegetable seedlings ordering is transplanted.
The utility model is included in gear-box, incomplete modified elliptical gear, the first jackshaft, the second jackshaft, the 3rd
Countershaft, the first planet axis, the second planet axis, third planet axis, the first middle modified elliptical gear, the second middle deformed ellipse tooth
Wheel, the 3rd middle modified elliptical gear, the first planet modified elliptical gear, the second planet modified elliptical gear, third planet become
Property elliptic gear, convex Locking arc plate, the first recessed Locking arc plate, the second recessed Locking arc plate, the 3rd recessed Locking arc plate, sun gear buffering
Arc plate, the first breast wheel buffering arc plate, the second breast wheel buffering arc plate, the 3rd breast wheel buffering arc plate, eliminate backlash device and
Transplanting arm；The incomplete modified elliptical gear is connected firmly with jaw flange, and jaw flange is fixed in rack；Described
Convex Locking arc plate and sun gear buffering arc plate are connected firmly with incomplete modified elliptical gear by positioning pin；Among described first
Axis, the second jackshaft, the 3rd jackshaft, the first planet axis, the second planet axis and third planet axis are arranged in parallel, and both ends are logical
Bearing is crossed to be supported in gear-box；First jackshaft, the second jackshaft and the 3rd jackshaft are uniformly distributed along the circumference；First planet axis,
Second planet axis and third planet axis are uniformly distributed along the circumference, and one end is stretched out outside gear-box, respectively with the housing of a transplanting arm
Pass through pin connection；The transplanting arm cam of transplanting arm is fixed on gear-box；The first middle modified elliptical gear and first
Jackshaft is connected by spline, the second middle modified elliptical gear is connected with the second jackshaft by spline, denaturation among the 3rd
Elliptic gear is connected with the 3rd jackshaft by spline；The first planet modified elliptical gear and the first planet axis pass through flower
Key connection, the second planet modified elliptical gear are connected with the second planet axis by spline, third planet modified elliptical gear and
Three planet axis are connected by spline；The first recessed Locking arc plate and the first breast wheel buffering arc plate are denatured with the first centre
Elliptic gear by pin connection, the second recessed Locking arc plate and the second breast wheel buffering arc plate with the second middle modified elliptical gear
By pin connection, the 3rd recessed Locking arc plate and the 3rd breast wheel buffering arc plate are connected with the 3rd middle modified elliptical gear by pin
Connect；The incomplete modified elliptical gear at least while with the first middle modified elliptical gear, the second middle deformed ellipse tooth
Two engagements in wheel and the 3rd middle modified elliptical gear；First middle modified elliptical gear and the first planet deformed ellipse tooth
Wheel engagement, the second middle modified elliptical gear engages with the second planet modified elliptical gear, third planet modified elliptical gear and
3rd middle modified elliptical gear engagement；The convex Locking arc plate and the first recessed Locking arc plate, the second recessed Locking arc plate or the
Three recessed Locking arc plate frictional drives；The sun gear buffering arc plate is buffered with the first breast wheel buffering arc plate, the second breast wheel
Arc plate or the 3rd breast wheel buffering arc plate frictional drive；The eliminate backlash device includes eliminating backlash cam, eliminates backlash
Shift fork, eliminate backlash shift fork axle and compression spring；The elimination backlash cam of three eliminate backlash devices respectively with the first planet axis,
Second planet axis is connected with third planet axis by spline, and secondary even by cam with one end of an elimination backlash shift fork respectively
Connect；The other end of three elimination backlash shift forks is hinged with gear-box by eliminating backlash shift fork axle；The one of three compression springs
End is fixed with gear-box, and the other end is nested with the middle part of corresponding elimination backlash shift fork respectively.
The cam profile of the transplanting arm cam includes seedling taking section, holds seedling section, pushes away seedling section and reply section；Seedling taking section includes taking
Seedling pawl contraction section, seedling claw shrink maintaining segment and seedling claw rapidly clamp segment；It is circular arc that seedling claw, which shrinks maintaining segment, connects seedling taking
Pawl contraction section and seedling claw rapidly clamp segment；Hold the seedling claw of seedling section connection seedling taking section and rapidly clamp segment and push away seedling section, reply section
Connection pushes away the seedling claw contraction section of seedling section and seedling taking section.
The first planet modified elliptical gear, the second planet modified elliptical gear, third planet modified elliptical gear
Locating slot is opened up on backlash cam with eliminating, is equipped with the spline of the first planet axis, the second planet axis and third planet axis
Positioning protrusion；The positioning protrusion of first planet axis is embedded in the first planet modified elliptical gear and corresponding one eliminates backlash cam
In locating slot, the positioning protrusion of the second planet axis is embedded in the second planet modified elliptical gear and corresponding one eliminates backlash cam
In locating slot, the positioning protrusion of third planet axis is embedded in third planet modified elliptical gear and corresponding one eliminates backlash cam
In locating slot.First planet modified elliptical gear, the second planet modified elliptical gear and third planet modified elliptical gear are determined
Position groove aligns with the locating slot of corresponding elimination backlash cam.
The corresponding central angle of incomplete modified elliptical gear toothless part is 70~90 °.
First middle modified elliptical gear, the second middle modified elliptical gear and the 3rd middle modified elliptical gear
Structure it is identical；First planet modified elliptical gear, the second planet modified elliptical gear and third planet deformed ellipse tooth
The structure of wheel is identical；First breast wheel buffering arc plate, the second breast wheel buffering arc plate and the 3rd breast wheel buffering arc are hardened
Structure is identical；The structure of first recessed Locking arc plate, the second recessed Locking arc plate and the 3rd recessed Locking arc plate is identical.
The collision of the sun gear buffering arc plate it is raised with the first breast wheel buffering arc plate, the second breast wheel buffering arc plate or
The collision protrusion frictional drive of 3rd breast wheel buffering arc plate.
The beneficial effects of the utility model：
1st, the utility model can realize that asymmetry variable speed is driven, and transplant arm cusp, which can export, meets taking for agriculture requirement
Seedling track.
2nd, the positioning protrusion of planet axis, and planet modified elliptical gear and the locating slot setting realization for eliminating backlash cam
Planet modified elliptical gear and the accurate assembling for eliminating backlash cam, ensure among modified elliptical gear and planet deformed ellipse
The open top container ship of gear.
3rd, the cam profile seedling taking section of transplanting arm cam includes seedling claw contraction section in the utility model, seedling claw shrinks and protects
Hold section and seedling claw rapidly clamp segment；Seedling claw shrinks maintaining segment and is kept during left seedling claw and right seedling claw insertion bowl-entering soil
Open apart from constant, ensure after the insertion deeper distance of bowl-entering soil seedling taking again, seedling taking is more reliable, while also reduces the damage to seedling；Take
Rapidly clamp segment increases effective chucking power of the transplanting arm last seedling taking moment to bowl-entering soil to seedling pawl.
4th, existing seedling-pushing rod and seedling pawl use welding form, and welding quality has an impact planting arm plant accuracy,
And seedling pawl used long after easily bend, if replace need at the same time replace seedling-pushing rod and seedling pawl, the utility model is adopted
With thread forms, assembling is more accurate, and only needs to change seedling pawl.
5th, the utility model gear drive uses seven gear-driven modes, the incomplete deformed ellipse tooth of the first order
Wheel is driven with modified elliptical gear, and the second level is used to be driven with pitch curve deformed elliptic gear.
6th, the utility model is simple in structure, compact, safe and reliable, manufacture cost is low.
7th, the utility model is arranged symmetrically scheme using three transplanting arms, and planet carrier rotates a circle, seedling taking three times, pushing away seedling angle
Differential seat angle with seedling taking angle is 50 °, improves transplanting work efficiency and seedling taking success rate, planting effect is more preferable, can effectively push away
Into the ordering of pot vegetable seedlings transplanting.
8th, gear tooth mutual impact when buffering arc plate greatly reduces recessed convex Locking arc plate separation, in reducing
Between modified elliptical gear rigid shock when engaging caused by the mutation of gearratio is had just enter into incomplete modified elliptical gear, together
When improve service life of gear.
9th, eliminate backlash device ensures the stable engagement of working status gear, it is ensured that transplanting accuracy.
Brief description of the drawings
Fig. 1 is the overall structure stereogram of the utility model；
Fig. 2 is the overall structure of the utility model and the movement locus schematic diagram of transplant arm cusp；
Fig. 3 is the inner body assembling schematic diagram of the utility model middle gear case；
Fig. 4 be the utility model middle gear case inner body and transplanting arm assembling stereogram a side view；
Fig. 5 be the utility model middle gear case inner body and transplanting arm assembling stereogram another side view；
Fig. 6 is the first planet axis splined section schematic diagram in the utility model；
Fig. 7 is the location diagram that backlash cam and the first planet modified elliptical gear are eliminated in the utility model；
Fig. 8 is the structure diagram of incomplete modified elliptical gear in the utility model；
Fig. 9 is transplanting arm cam profile schematic diagram in the utility model；
Figure 10 is the stereogram of transplanting arm in the utility model；
Figure 11 is the inner body structure diagram of transplanting arm in the utility model；
Figure 12 is the movement locus figure that transplant arm cusp is formed in the utility model.
Figure 13 is the front view of seedling-pushing rod in the utility model.
Figure 14 is the A-A sectional views of Figure 13.
Figure 15 is the structure diagram of seedling pawl in the utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and embodiments.
As shown in Fig. 1,2,3,4 and 5, a kind of modified elliptical gear planetary system three-jaw vegetable transplanting mechanism, including gear-box
2nd, incomplete modified elliptical gear 4, the first jackshaft 24, the second jackshaft 25, the 3rd jackshaft 27, the first planet axis 23,
Two planet axis 26, third planet axis 29, the first middle modified elliptical gear 5, among the second middle modified elliptical gear the 10, the 3rd
Modified elliptical gear 17, the first planet modified elliptical gear 8, the second planet modified elliptical gear 14, third planet deformed ellipse
Gear 19, convex Locking arc plate 15, the first recessed Locking arc plate 6, the second recessed Locking arc plate 11, the 3rd recessed Locking arc plate 16, sun gear
Buffering arc plate 9, the first breast wheel buffering arc plate 7, the second breast wheel buffering arc plate 12, the 3rd breast wheel buffering arc plate 18, elimination
Backlash device and transplanting arm 1.Incomplete modified elliptical gear 4 is fixed with jaw flange, and jaw flange is fixed on gear-box
It is interior；Convex Locking arc plate 15 and sun gear buffering arc plate 9 pass through pin connection with incomplete modified elliptical gear 4；First jackshaft
24th, the second jackshaft 25, the 3rd jackshaft 28, the first planet axis 23, the second planet axis 26 and third planet axis 29 are arranged in parallel,
And both ends are supported in gear-box by bearing；First jackshaft 24, the second jackshaft 25 and the 3rd jackshaft 28 are circumferentially
It is uniformly distributed；First planet axis 23, the second planet axis 26 and third planet axis 29 are uniformly distributed along the circumference, and one end is stretched out outside gear-box,
The housing with a transplanting arm passes through pin connection respectively；The transplanting arm cam of transplanting arm is fixed on gear-box；First planet axis
23rd, the distance L of the pivot of the second planet axis 26 and third planet axis 29 to corresponding transplant arm cusp is 152mm；In first
Between modified elliptical gear 5 be connected with the first jackshaft by spline, the second middle modified elliptical gear 10 leads to the second jackshaft
Spline connection is crossed, the 3rd middle modified elliptical gear 17 is connected with the 3rd jackshaft by spline；First planet deformed ellipse tooth
Wheel 8 is connected with the first planet axis 23 by spline, and the second planet modified elliptical gear 14 is connected with the second planet axis 26 by spline
Connect, third planet modified elliptical gear 19 is connected with third planet axis 29 by spline；Among first recessed Locking arc plate 6 and first
Wheel buffering arc plate 7 is delayed with the first middle modified elliptical gear 5 by pin connection, the second recessed Locking arc plate 11 and the second breast wheel
Arc making plate 12 passes through pin connection, the 3rd recessed Locking arc plate 16 and the 3rd breast wheel buffering with the second middle modified elliptical gear 10
Arc plate 18 passes through pin connection with the 3rd middle modified elliptical gear 17；Denaturation among incomplete modified elliptical gear 4 and first
Elliptic gear 5, the centre-to-centre spacing of the second middle 10 and the 3rd middle modified elliptical gear 17 of modified elliptical gear are 62mm；It is endless
Full modified elliptical gear 4 at least while with the first middle modified elliptical gear 5, the second middle modified elliptical gear 10 and the 3rd
Between two engagements in modified elliptical gear 17；First middle modified elliptical gear 5 is nibbled with the first planet modified elliptical gear 8
Close, the second middle modified elliptical gear 10 is engaged with the second planet modified elliptical gear 14, the 3rd middle modified elliptical gear 17
Engaged with third planet modified elliptical gear 19；First middle 5 and first planet modified elliptical gear 8 of modified elliptical gear,
Two middle 10 and second planet modified elliptical gear 14 of modified elliptical gear, the 3rd middle modified elliptical gear 17 and third planets
The centre-to-centre spacing of modified elliptical gear 19 is 53.8mm；15 and first recessed Locking arc plate 6 of convex Locking arc plate, the second recessed Locking arc plate
11 or 16 frictional drive of the 3rd recessed Locking arc plate；9 and first breast wheel buffering arc plate 7 of sun gear buffering arc plate, the second breast wheel
18 frictional drive of buffering arc plate 12 or the 3rd breast wheel buffering arc plate；Eliminate backlash device includes eliminating backlash cam 27, eliminates
Backlash shift fork 21, eliminate backlash shift fork axle 20 and compression spring 22；The elimination backlash cam of three eliminate backlash devices respectively with
First planet axis 23, the second planet axis 26 are connected with third planet axis 29 by spline, and eliminate backlash shift fork with one respectively
One end pass through the secondary connection of cam；The other end of three elimination backlash shift forks is cut with scissors by eliminating backlash shift fork axle 20 with gear-box
Connect；One end of three compression springs 22 is fixed with gear-box, and the other end is nested with corresponding elimination backlash shift fork 21 respectively
Portion.
As shown in Figures 6 and 7, the first planet modified elliptical gear 8, the second planet modified elliptical gear 14, third planet become
Property elliptic gear 19 and eliminate backlash cam on open up locating slot 38, the first planet axis 23, the second planet axis 26 and the third line
Positioning protrusion 13 is equipped with the spline of star axis 29；The positioning protrusion of first planet axis 23 is embedded in the first planet modified elliptical gear
8 and corresponding elimination backlash cam locating slot in, the positioning protrusion of the second planet axis 26 is embedded in the second planet deformed ellipse
In the locating slot of gear 14 and corresponding elimination backlash cam, the positioning protrusion insertion third planet denaturation of third planet axis 29
In the locating slot of elliptic gear 19 and corresponding elimination backlash cam.First planet modified elliptical gear 8, the denaturation of the second planet
The locating slot pair of the locating slot of elliptic gear 14 and third planet modified elliptical gear 19 and corresponding elimination backlash cam
Together.The setting of positioning protrusion and locating slot realizes planet modified elliptical gear and eliminates the accurate assembling of backlash cam, ensures
The open top container ship of middle modified elliptical gear and planet modified elliptical gear.
As shown in figure 8, not exclusively the corresponding central angle n of 4 toothless part of modified elliptical gear is 85 °.
As shown in figure 9, the cam profile of transplanting arm cam 30 includes seedling taking section, holds seedling section 30-1, pushes away seedling section 30-2 and return
Multiple section 30-3；Seedling taking section includes seedling claw contraction section 30-4, seedling claw shrinks maintaining segment 30-5 and seedling claw rapidly clamp segment 30-
6；It is circular arc that seedling claw, which shrinks maintaining segment 30-5, connects seedling claw contraction section 30-4 and seedling claw rapidly clamp segment 30-6；Hold seedling
The seedling claw of section 30-1 connection seedling taking sections rapidly clamp segment 30-6 and pushes away seedling section 30-2, reply section 30-3 connections push away seedling section 30-2 with
The seedling claw contraction section 30-4 of seedling taking section；Rapidly the corresponding central angles of clamp segment 30-6 are 6 ° to seedling claw, and seedling claw rapidly clamps
The starting point of section 30-6 is higher than terminating point；Seedling claw shrinks maintaining segment 30-5 and is inserted into bowl-entering soil in left seedling claw 34 and right seedling claw 33
During keep opening apart from constant, ensure after the insertion deeper distance of bowl-entering soil seedling taking again, seedling taking is more reliable, while also reduces to seedling
Damage；Rapidly clamp segment 30-6 increases effective chucking power of the transplanting arm last seedling taking moment to bowl-entering soil to seedling claw.
First middle modified elliptical gear 5, the second middle 10 and the 3rd middle modified elliptical gear 17 of modified elliptical gear
Structure it is identical, the first planet modified elliptical gear 8, the second planet modified elliptical gear 14 and third planet deformed ellipse
The structure of gear 19 is identical；First breast wheel buffering arc plate 7, the second breast wheel buffering arc plate 12 and the 3rd breast wheel buffering
The structure of arc plate 18 is identical；The structure of first recessed Locking arc plate 6, the second recessed Locking arc plate 11 and the 3rd recessed Locking arc plate 16
It is identical.
As shown in Fig. 3,4 and 5, in the collision protrusion of sun gear buffering arc plate 9 and the first breast wheel buffering arc plate 7, second
Between take turns the collision protrusion frictional drive of buffering arc plate 12 or the 3rd breast wheel buffering arc plate 18, when incomplete modified elliptical gear 4
When being initially separated with the first middle modified elliptical gear 5, the first recessed Locking arc plate 6 starts frictional drive with convex Locking arc plate 15,
And when the first recessed Locking arc plate 6 is initially separated with convex Locking arc plate 15,6 and first breast wheel buffering arc of sun gear buffering arc plate
The collision protrusion of plate 7 collides with each other and starts frictional drive；When sun gear buffering arc plate 6 and the first breast wheel buffering arc plate 7 are divided
From when, incomplete modified elliptical gear 4 restarts to engage with the first middle modified elliptical gear 5；Incomplete deformed ellipse tooth
The theory of engagement of 4 and second middle 10 or the 3rd middle modified elliptical gear 17 of modified elliptical gear of wheel is the same as incomplete deformed ellipse
The theory of engagement of 4 and first middle modified elliptical gear 5 of gear.
As shown in FIG. 11 and 12, transplanting arm includes transplanting arm cam 30, lid 31, housing 32, right seedling claw 33, left seedling taking
Pawl 34, seedling pawl 35, push away seedling spring 36, seedling-pushing rod 37, transplanting arm shift fork 39 and transplanting arm shift fork axle 40；Lid 31 and housing 32
It is fixed；The middle part of transplanting arm shift fork 39 is hinged by transplanting arm shift fork axle 40 and housing 32, and one end is formed with transplanting arm cam 30
Cam pair, the fork pawl both sides of the other end respectively constitute rolling friction pair with two flanges of 37 afterbody of seedling-pushing rod；Fork pawl is sleeved on
Bar segment between two flanges of seedling-pushing rod afterbody；Seedling-pushing rod forms sliding pair with housing 32；Seedling spring 36 is pushed away to be nested with seedling-pushing rod
On, one end is connected with seedling-pushing rod, and the other end is connected with housing 32；One end that seedling-pushing rod is stretched out outside housing is fixed with seedling pawl 35；
Left seedling claw 34 and right seedling claw 33 are symmetricly set on outside housing；The afterbody of left seedling claw 34 and right seedling claw 33 is consolidated with housing
Fixed, head is freely set；Left seedling claw 34 and right seedling claw 33 are pushed away in seedling clip slot embedded in two of 35 both sides of seedling pawl respectively.
The modified elliptical gear planetary system three-jaw pot vegetable seedlings are illustrated using the transplanting arm being connected with the first planet axis 23
The operation principle of transplanting mechanism, the operation principle of other two transplanting arm are identical：
As shown in Fig. 2,3,4,5,10 and 11, gear-box is fixed with the central shaft being supported in rack by pin, power
Gear-box is transmitted to by central shaft, drives gear-box by rotating in an anti-clockwise direction in Fig. 2.Transplanting arm cam 30 is with gear-box
Move with uniform velocity, and transplanting arm does non-at the uniform velocity intermittent movement by being connected firmly with the first planet axis 23；Transplanting arm drives transplanting arm to dial
Fork 39 is rotated around transplanting arm shift fork axle 40, and transplanting arm shift fork 39 drives seedling-pushing rod 37 to be slided with respect to transplant arm housing 32；A left side takes
Seedling pawl 34 and right seedling claw 33 are mutually opened under the action of seedling pawl 35, closed；When the first recessed Locking arc plate 6 and convex Locking arc
When plate 15 enters engagement, the first middle 5 and first planet modified elliptical gear of modified elliptical gear, 8 opposed gear case is quiet
Only, transplanting arm cam 30 is contacted with transplanting arm shift fork 39 in cam return section 30-3, is formed intermittent movement and is replied section track DE, its
Middle the second half sun gear buffering arc plate 9 enters with the first intermediate buffering arc plate 7 to be engaged, so that the rigidity punching between reducing gear pair
Hit.When the first middle 5 and first planet modified elliptical gear 8 of modified elliptical gear enters engagement, transplanting arm is in gear-box band
Under dynamic seedling taking section track EFA is formed from E points setting in motion；Wherein, distinguish when transplanting arm cam 30 compresses transplanting arm shift fork 39
Cam contraction section 30-4 is undergone, maintaining segment 30-5 is shunk, rapidly presss from both sides seedling section 30-6, seedling-pushing rod 37 is retracted, left seedling claw 34 and the right side
Seedling claw 33 is mutually closed, and finally completes whole seedling taking action；Depart from shape when transplanting arm cam 30 and transplanting arm shift fork 39 are in
State, i.e., hold seedling section 30-1 in cam and form and hold seedling section track ABC；When transplanting arm pushes away seedling since C points, transplanting arm cam
30 will push away seedling section 30-2 in cam starts to contact with transplanting arm shift fork 39 again, quickly releases seedling-pushing rod 37, promotes left seedling taking
Pawl 34 and right seedling claw 33 mutually open, and seedling pawl 35 releases pot seedling, complete to push away seedling action in D points, formation pushes away seedling section track
CD.The movement locus 3 of transplant arm cusp is as shown in figure 12, and seedling taking angle β is 30 °, and pushing away seedling angle λ is 80 °, pushing away seedling angle α and seedling taking angle β
Differential seat angle be 50 °；Differential seat angle is bigger, then dynamic rail mark during actual transplanting is better, the pushing away seedling angle α of existing transplanter and seedling taking
The differential seat angle of angle beta generally can only achieve 40 °, so the plantation of the modified elliptical gear planetary system three-jaw pot vegetable seedlings transplanter structure
Effect is more preferable.
As shown in Figure 13,14 and 15, the end cross-sectional 37-1 that seedling-pushing rod 37 is stretched out outside the housing of transplanting arm is two circles
Segmental arc and two straightways are surrounded and formed, and wherein straight line section connects two arc section one end, another straightway connection two
The bar arc section other end；Cylinder where the end that seedling-pushing rod 37 is stretched out outside the housing of transplanting arm is located at arc section is equipped with outer spiral shell
Line；The afterbody of seedling pawl 35 opens up mounting groove 35-1, and the shape of mounting groove stretches out the end outside the housing of transplanting arm with seedling-pushing rod 37
Cross section form fit, and the circular arc hole wall of mounting groove is equipped with internal thread, the mounting groove internal thread and seedling-pushing rod of seedling pawl 35
End external screw thread connection outside the housing of 37 stretching transplanting arm.Existing seedling-pushing rod 37 uses welding form with seedling pawl 35,
Welding quality to planting arm plant accuracy have an impact, and seedling pawl 35 used long after easily bend, if replace need
Seedling-pushing rod 37 and seedling pawl 35 are replaced at the same time, thread forms are used in the present embodiment, assembling is more accurate, and only needs to change seedling pawl
35。
Claims (5)
- A kind of 1. modified elliptical gear planetary system three-jaw vegetable transplanting mechanism, it is characterised in that：Including gear-box, not exclusively denaturation Elliptic gear, the first jackshaft, the second jackshaft, the 3rd jackshaft, the first planet axis, the second planet axis, third planet axis, One middle modified elliptical gear, the second middle modified elliptical gear, the 3rd middle modified elliptical gear, the first planet deformed ellipse Gear, the second planet modified elliptical gear, third planet modified elliptical gear, convex Locking arc plate, the first recessed Locking arc plate, second Recessed Locking arc plate, the 3rd recessed Locking arc plate, sun gear buffering arc plate, the first breast wheel buffering arc plate, the second breast wheel buffering arc Plate, the 3rd breast wheel buffering arc plate, eliminate backlash device and transplanting arm；The incomplete modified elliptical gear and castellated method Orchid connects firmly, and jaw flange is fixed in rack；The convex Locking arc plate and sun gear buffering arc plate are with being not exclusively denatured Elliptic gear is connected firmly by positioning pin；First jackshaft, the second jackshaft, the 3rd jackshaft, the first planet axis, second Planet axis and third planet axis are arranged in parallel, and both ends are supported in gear-box by bearing；First jackshaft, among second Axis and the 3rd jackshaft are uniformly distributed along the circumference；First planet axis, the second planet axis and third planet axis are uniformly distributed along the circumference, and one end is equal Stretch out outside gear-box, the housing with a transplanting arm passes through pin connection respectively；The transplanting arm cam of transplanting arm is fixed on gear-box On；The first middle modified elliptical gear is connected with the first jackshaft by spline, the second middle modified elliptical gear with Second jackshaft is connected by spline, and the 3rd middle modified elliptical gear is connected with the 3rd jackshaft by spline；Described One planet modified elliptical gear is connected with the first planet axis by spline, and the second planet modified elliptical gear leads to the second planet axis Spline connection is crossed, third planet modified elliptical gear is connected with third planet axis by spline；The first recessed Locking arc plate With the first breast wheel buffering arc plate with the first middle modified elliptical gear by pin connection, in the second recessed Locking arc plate and second Between take turns buffering arc plate and pass through pin connection, the 3rd recessed Locking arc plate and the 3rd breast wheel buffering with the second middle modified elliptical gear Arc plate passes through pin connection with the 3rd middle modified elliptical gear；The incomplete modified elliptical gear is at least while with first Two engagements in middle modified elliptical gear, the second middle modified elliptical gear and the 3rd middle modified elliptical gear；First Middle modified elliptical gear is engaged with the first planet modified elliptical gear, and the second middle modified elliptical gear and the second planet are denatured Elliptic gear engages, and third planet modified elliptical gear is engaged with the 3rd middle modified elliptical gear；The convex Locking arc plate With the first recessed Locking arc plate, the second recessed Locking arc plate or the 3rd recessed Locking arc plate frictional drive；The sun gear buffering arc plate With the first breast wheel buffering arc plate, the second breast wheel buffering arc plate or the 3rd breast wheel buffering arc plate frictional drive；Described disappears Except backlash device includes eliminating backlash cam, elimination backlash shift fork, elimination backlash shift fork axle and compression spring；Three elimination backlash The elimination backlash cam of device is connected with the first planet axis, the second planet axis and third planet axis by spline respectively, and respectively It is connected with one end of an elimination backlash shift fork by the way that cam is secondary；The other end of three elimination backlash shift forks passes through with gear-box Backlash shift fork axle is eliminated to be hinged；One end of three compression springs is fixed with gear-box, and the other end is nested with respectively to disappear corresponding Except in the middle part of backlash shift fork；The cam profile of the transplanting arm cam includes seedling taking section, holds seedling section, pushes away seedling section and reply section；Seedling taking section includes seedling claw Contraction section, seedling claw shrink maintaining segment and seedling claw rapidly clamp segment；It is circular arc that seedling claw, which shrinks maintaining segment, and connection seedling claw is received Contracting section and seedling claw rapidly clamp segment；Hold the seedling claw of seedling section connection seedling taking section and rapidly clamp segment and push away seedling section, reply section connection Push away the seedling claw contraction section of seedling section and seedling taking section.
- A kind of 2. modified elliptical gear planetary system three-jaw vegetable transplanting mechanism according to claim 1, it is characterised in that：Institute The first planet modified elliptical gear, the second planet modified elliptical gear, third planet modified elliptical gear and the elimination backlash stated Locating slot is opened up on cam, positioning protrusion is equipped with the spline of the first planet axis, the second planet axis and third planet axis；The The positioning protrusion of one planet axis is embedded in the locating slot of the first planet modified elliptical gear and corresponding elimination backlash cam, the The positioning protrusion of two planet axis is embedded in the locating slot of the second planet modified elliptical gear and corresponding elimination backlash cam, the In the locating slot of the positioning protrusion insertion third planet modified elliptical gear of three planet axis and corresponding elimination backlash cam；The The locating slot of one planet modified elliptical gear, the second planet modified elliptical gear and third planet modified elliptical gear with each it is right The locating slot alignment for the elimination backlash cam answered.
- A kind of 3. modified elliptical gear planetary system three-jaw vegetable transplanting mechanism according to claim 1, it is characterised in that：Institute The corresponding central angle of incomplete modified elliptical gear toothless part stated is 70~90 °.
- A kind of 4. modified elliptical gear planetary system three-jaw vegetable transplanting mechanism according to claim 1, it is characterised in that：Institute The structure of the first middle modified elliptical gear, the second middle modified elliptical gear and the 3rd middle modified elliptical gear stated is complete It is identical；The structure of first planet modified elliptical gear, the second planet modified elliptical gear and third planet modified elliptical gear is complete It is exactly the same；First breast wheel buffering arc plate, the second breast wheel buffering arc plate and the 3rd breast wheel buffering arc harden structure are identical； The structure of first recessed Locking arc plate, the second recessed Locking arc plate and the 3rd recessed Locking arc plate is identical.
- A kind of 5. modified elliptical gear planetary system three-jaw vegetable transplanting mechanism according to claim 1, it is characterised in that：Institute State the collision protrusion and the first breast wheel buffering arc plate, the second breast wheel buffering arc plate or the 3rd breast wheel of sun gear buffering arc plate The collision protrusion frictional drive of buffering arc plate.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112881048A (en) * | 2021-01-11 | 2021-06-01 | 浙江理工大学 | Rice pot seedling transplanting performance test device and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112881048A (en) * | 2021-01-11 | 2021-06-01 | 浙江理工大学 | Rice pot seedling transplanting performance test device and use method thereof |
| CN112881048B (en) * | 2021-01-11 | 2022-05-06 | 浙江理工大学 | Rice pot seedling transplanting performance test device and use method thereof |
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