CN203597065U - Freedom two-step non-circular gear-eccentric non-circular gear pot seedling clamping type seedling taking mechanism - Google Patents
Freedom two-step non-circular gear-eccentric non-circular gear pot seedling clamping type seedling taking mechanism Download PDFInfo
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- CN203597065U CN203597065U CN201320782682.7U CN201320782682U CN203597065U CN 203597065 U CN203597065 U CN 203597065U CN 201320782682 U CN201320782682 U CN 201320782682U CN 203597065 U CN203597065 U CN 203597065U
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- 235000015510 Cucumis melo subsp melo Nutrition 0.000 abstract description 7
- 235000013399 edible fruits Nutrition 0.000 abstract description 6
- 235000013311 vegetables Nutrition 0.000 abstract description 6
- 238000010899 nucleation Methods 0.000 abstract 3
- 235000012055 fruits and vegetables Nutrition 0.000 abstract 1
- 230000001788 irregular Effects 0.000 abstract 1
- 239000002689 soil Substances 0.000 abstract 1
- 238000002054 transplantation Methods 0.000 abstract 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 5
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- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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- 230000007812 deficiency Effects 0.000 description 1
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Abstract
The utility model discloses a freedom two-step non-circular gear-eccentric non-round gear pot seedling clamping type seedling taking mechanism. The irregular performance of a non-circular gear and the seedling needle extending are increased when the soil clamping type seedling taking mode, and for melons and fruits and vegetable crops, a seedling clamping type seedling taking mode can be adopted. The freedom two-step non-circular gear-eccentric non-round gear pot seedling clamping type seedling taking mechanism provided by the utility model is characterized in that a center shaft and a planet carrier are fixed, and the freedom two-step non-circular gear is arranged on the center shaft in a hollow sleeving manner; a first middle shaft, a second middle shaft, a first planet shaft and a second planet shaft are all connected with a planet carrier bearing, the first planet shaft and the second planet shaft are respectively fixed with a shell of a seeding taking claw, and the freedom two-step non-circular gear is respectively meshed with a first freedom two-step middle non-circular gear and a second freedom two-step middle non-circular gear; a first middle eccentric circle gear and a first planet non-circular gear are meshed, and a second middle eccentric circle gear and a second planet non-circular gear are meshed; a head sharp point of a seeding taking claw forms a seeding clamping type seedling taking track. The freedom two-step non-circular gear-eccentric non-round gear pot seedling clamping type seedling taking mechanism provided by the utility model has the advantages that by adopting the seedling taking track, the seedling taking is realized conveniently, and the full-automatic transplantation of the melons and the fruits and the vegetables is realized.
Description
Technical field
The utility model belongs to agricultural mechanical field, relates to seedling picking mechanism, is specifically related to the non-knuckle-tooth of a kind of free second order-eccentric non-knuckle-tooth pot seedling folder seedling formula seedling picking mechanism.
Background technology
Mechanization transplanting is generally divided into two steps to be completed: get seedling and plant.By the different seedling modes of getting, transplanter is divided into semi-automaticly and full-automatic, key point is to see whether it adopts mechanization to get seedling operation.
Domestic full-automatic seedling picking mechanism has multi-bar linkage, crank slideway mechanism and partial gear indexing mechanism, and said mechanism is along with transplanting the increase of frequency, and transplanter vibration aggravation, causes seedling-damaging ratio to increase.Mechanical type is got seedling mode generally has seedling claw to press from both sides that native formula is got seedling and folder seedling formula is got two kinds of modes of seedling.The rotary seedling picking mechanism of novel planetary train has the high-order of mixing modification Planetary elliptic gears pot seedling transplanter seedling-distributing mechanism, free second order noncircular planetary gear is high speed potted-seedling transplanting mechanism and rotary paddy rice pot seedling transplanter structure, they are got seedling mode and get seedling for pressing from both sides native formula, need seedling pin to enter pot seedling disk inner clip seedling taking seedling, and can not destroy alms bowl dish and hinder root, therefore track needs a sharp-pointed projection, enter alms bowl dish to leaving alms bowl body completely from seedling pin, seedling pin needs one section of movement locus close to straight line, due to this restriction, cause non-circular gear scrambling to strengthen or increased " leaning out formula " seedling pin, mechanism's mechanical property variation, life-span reduces, rotary paddy rice pot seedling transplanter structure is realized 8-shaped working trajectory, and consideration nonirrigated farmland seedling picking mechanism coordinates with planting mechanism, and 8-shaped track is improper.Transplant for substrate seedling, matrix is lighter, and the stem stalk part of part melon and fruit, vegetable crop is enough tough and tensile, allows to adopt the mode operation of folder seedling.Therefore, be necessary for the crop such as melon and fruit, vegetables, design that a kind of efficiency is higher, transmission seedling picking mechanism more stably, it is coordinated with planting mechanism, realize the full-automatic transplanting of the crop such as melon and fruit, vegetables.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, the non-knuckle-tooth of a kind of free second order-eccentric non-knuckle-tooth pot seedling folder seedling formula seedling picking mechanism is provided, this seedling picking mechanism adopts folder seedling formula to get seedling mode, make to get seedling track and be more conducive to winding machine, and can coordinate with planting mechanism, realize the full-automatic transplanting of the crop such as melon and fruit, vegetables.
The utility model comprises central shaft, planet carrier, free second order center non-circular gear, the first jackshaft, the middle non-circular gear of the first free second order, the first middle eccentric gear, the first planet axis, the first planet non-circular gear, the second jackshaft, the middle non-circular gear of the second free second order, the second middle eccentric gear, the second planet axis, the second planet non-circular gear and seedling claw.One end of described central shaft is connected with power set, and the other end and planet carrier are fixed; Described free second order center non-circular gear empty set, on central shaft, and is fixed with frame.Described the first jackshaft and the second jackshaft are symmetricly set on central shaft both sides, and are all connected with planet carrier bearing; In the middle of the first free second order, in the middle of non-circular gear and first, eccentric gear is all fixed on the first jackshaft, and in the middle of the second free second order, in the middle of non-circular gear and second, eccentric gear is all fixed on the second jackshaft.Described the first planet axis and the second planet axis are symmetricly set on central shaft both sides, and are all connected with planet carrier bearing; One end of the first planet axis and the second planet axis is all stretched out planet carrier housing outer and a seedling claw and is fixed; The first planet non-circular gear is fixed in the first planet axis, and the second planet non-circular gear is fixed in the second planet axis.Described free second order center non-circular gear engages with non-circular gear in the middle of non-circular gear in the middle of the first free second order and the second free second order simultaneously; In the middle of first, eccentric gear engages with the first planet non-circular gear, and the second middle eccentric gear engages with the second planet non-circular gear.
Described planet carrier rotates, and the head cusp of seedling claw forms folder seedling formula and gets seedling track; It is sealing and the plane smooth curve without latch closure that described folder seedling formula is got seedling track, comprises entering alms bowl section, get seedling section, transport seedling section, throw seedling section and replying section of order head and the tail connection successively; The top that enters alms bowl section is connected with the bottom of getting seedling section, and bottom is connected with the top of replying section; Described enter alms bowl section be the straightway that is parallel to cave dish upper surface, the bottom of getting seedling section is segmental arc, top is the straightway perpendicular to cave dish upper surface; The linearity of enter alms bowl section, getting the top straightway of seedling section is 1mm/20mm～1mm/10mm, and the top length of straigh line of getting seedling section is greater than the height of cave dish.
Described seedling claw comprises housing, cam, shift fork, seedling-pushing rod, pushes away seedling spring, the piece of bulldozing, push away seedling piece, folder seedling piece and spring leaf; Cam of difference empty set in the first planet axis and the second planet axis, two cams are all fixed with planet carrier; Described shift fork is arranged in housing by bearing pin, and one end is connected by cam is secondary with cam, and the other end is connected by cam is secondary with seedling-pushing rod; Described seedling-pushing rod and inner walls are slidably connected, and afterbody is connected with housing afterbody by pushing away seedling spring; Described soil-shifting piece, push away seedling piece and folder seedling piece is all fixed on seedling-pushing rod head, and arrange successively along head to the caudal directions of seedling-pushing rod, folder seedling piece offers U-lag; Two flat spring sheet spacing are arranged on soil-shifting piece top, and one end is all fixed on the both sides, top of housing, and the other end all stretches in the U-lag of folder seedling piece, and is separately positioned on the both sides that push away seedling piece.
In the middle of the first described free second order, in the middle of non-circular gear and the second free second order, the pitch curve parameter of non-circular gear is in full accord; The first described planet non-circular gear and the pitch curve parameter of the second planet non-circular gear are in full accord.
The beneficial effects of the utility model:
1, form folder seedling formula by variable speed transmission and get seedling track, this track meets the transplanting agriculture requirement that pot seedling transplanter is put down into alms bowl, directly lifted seedlings, surely throws seedling; Adopt free second order non-circular gear drive, make the secondary swing characteristic of seedling claw more flexible, create conditions for realizing the better seedling track of getting; Can coordinate with planting mechanism, realize the full-automatic transplanting of the crop such as melon and fruit, vegetables.
2, adopt folder seedling formula to get seedling mode, make to get seedling track and be more conducive to winding machine, gear systematicness strengthens, and mechanism's mechanical property of design is better, and mechanism's life-span is higher.
3, mechanism structure compactness; Seedling claw is simple in structure, dependable performance.
4, adopt the rotary seedling mode of getting of planet circular system, can adapt to transplanter operation under any rotating speed.
Accompanying drawing explanation
Fig. 1 is initial installation site of the present utility model and fundamental diagram;
Fig. 2 is structural scheme of mechanism of the present utility model;
Fig. 3 is the overall structure cutaway view of seedling claw in the utility model;
Fig. 4 is the seedling track schematic diagram of getting of the present utility model;
When Fig. 5 is the initial installation site of the utility model, opening of spring leaf closed view;
When Fig. 6 is the utility model folder seedling position, opening of spring leaf closed view;
Fig. 7 be the utility model while pushing away seedling position spring leaf close view.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As illustrated in fig. 1 and 2, the non-knuckle-tooth of free second order-eccentric non-knuckle-tooth pot seedling folder seedling formula seedling picking mechanism comprises central shaft 1, planet carrier 2, free second order center non-circular gear 3, the first jackshaft 4, the middle non-circular gear 5 of the first free second order, the first middle eccentric gear 6, the first planet axis 7, the first planet non-circular gear 8, the second jackshaft 9, the middle non-circular gear 10 of the second free second order, the second middle eccentric gear 11, the second planet axis 12, the second planet non-circular gear 13 and seedling claw 14.One end of central shaft 1 is connected with power set, and the other end and planet carrier 2 are fixing; Free second order center non-circular gear 3 empty sets, on central shaft 1, and are fixed with frame.The first jackshaft 4 and the second jackshaft 9 are symmetricly set on central shaft 1 both sides, and are all connected with planet carrier 2 bearings; In the middle of the first free second order, in the middle of non-circular gear 5 and first, eccentric gear 6 is all fixed on the first jackshaft 4, and in the middle of the second free second order, in the middle of non-circular gear 10 and second, eccentric gear 11 is all fixed on the second jackshaft 9.The first planet axis 7 and the second planet axis 12 are symmetricly set on central shaft 1 both sides, and are all connected with planet carrier 2 bearings; One end of the first planet axis 7 and the second planet axis 12 is all stretched out planet carrier housing 14-1 outer and a seedling claw and is fixed; The first planet non-circular gear 8 is fixed in the first planet axis 7, and the second planet non-circular gear 13 is fixed in the second planet axis 12.Free second order center non-circular gear 3 engages with non-circular gear 10 in the middle of non-circular gear 5 in the middle of the first free second order and the second free second order simultaneously; In the middle of first, eccentric gear 6 engages with the first planet non-circular gear 8, and the second middle eccentric gear 11 engages with the second planet non-circular gear 13.
As shown in Figure 3, seedling claw 14 comprises housing 14-1, cam 14-2, shift fork 14-3, seedling-pushing rod 14-4, pushes away seedling spring 14-5, soil-shifting piece 14-6, pushes away seedling piece 14-7, folder seedling piece 14-8 and spring leaf 14-9; Cam 14-2 of difference empty set in the first planet axis 7 and the second planet axis 12, two cam 14-2 are all fixing with planet carrier 2; Shift fork 14-3 is arranged in housing 14-1 by bearing pin, and one end is connected by cam is secondary with cam 14-2, and the other end is connected by cam is secondary with seedling-pushing rod 14-4; Seedling-pushing rod 14-4 and housing 14-1 inwall are slidably connected, and afterbody is connected with housing 14-1 afterbody by pushing away seedling spring 14-5; Soil-shifting piece 14-6, push away seedling piece 14-7 and folder seedling piece 14-8 is all fixed on seedling-pushing rod 14-4 head, and arrange successively along head to the caudal directions of seedling-pushing rod 14-4, folder seedling piece 14-8 offers U-lag; Two flat spring sheet 14-6 spacing are arranged on soil-shifting piece 14-6 top, and one end is all fixed on the both sides, top of housing 14-1, and the other end all stretches in the U-lag of folder seedling piece 14-8, and is separately positioned on the both sides that push away seedling piece 14-7.
As shown in Figure 1, in the middle of the first free second order, in the middle of non-circular gear 5 and the second free second order, the pitch curve parameter of non-circular gear 10 is in full accord; In the middle of first, in the middle of eccentric gear 6 and second, the pitch curve parameter of eccentric gear 11, the first planet non-circular gear 8 and the second planet non-circular gear 13 is in full accord.
As shown in figs. 1 and 4, planet carrier 2 rotates, and the head cusp of seedling claw 14 forms folder seedling formula and gets seedling track 15; Folder seedling formula is got seedling track 15 for sealing and without the plane smooth curve of latch closure, and what comprise that order head and the tail successively connect enters alms bowl section 15-1, gets seedling section 15-2, fortune seedling section 15-3, throws seedling section 15-4 and reply a section 15-5; The top that enters alms bowl section 15-1 is connected with the bottom of getting seedling section 15-2, and bottom is connected with the top of replying section 15-5; Entering alms bowl section 15-1 is the straightway that is parallel to cave dish upper surface, and the bottom of getting seedling section 15-2 is segmental arc, and top is the straightway perpendicular to cave dish upper surface; The linearity of enter alms bowl section 15-1, getting the top straightway of seedling section 15-2 is 1mm/14mm, and the top length of straigh line of getting seedling section is 80mm.Entering alms bowl section 15-1 is straightway, guarantees to get Miao Shiyan native alms bowl direction clamping seedling at ordinary times; The top straightway of getting seedling section 15-2 guarantees to take out seedling along vertical native alms bowl direction; Throw seedling section 15-4 and guarantee that seedling and planting mechanism only exist relative velocity vertically, are beneficial to accurate throwing seedling; Visible, this folder seedling formula is got seedling track 15 can meet the requirement of into alms bowl, directly getting seedling and surely throwing seedling of putting down of getting seedling in potted-seedling transplanting.
The operation principle of the non-knuckle-tooth of this free second order-eccentric non-knuckle-tooth pot seedling folder seedling formula seedling picking mechanism is as follows:
As illustrated in fig. 1 and 2, power is passed to planet carrier 2 via central shaft 1, drives planet carrier 2 to rotate.The middle non-circular gear 5 of the first free second order engages with free second order center non-circular gear 3, the first middle eccentric gear 6 engages with the first planet non-circular gear 8, drives the first planet axis 7 to rotate; The middle non-circular gear 10 of the second free second order engages with free second order center non-circular gear 3, the second middle eccentric gear 11 engages with the second planet non-circular gear 13, drives the second planet axis 12 to rotate.The first planet axis 7 drives respectively the housing 14-1 of the seedling claw fixing with it to rotate relative to 2 cycles of planet carrier with the second planet axis 12.
As shown in Fig. 1,3,5,6 and 7, the housing 14-1 of seedling claw rotated relative to 2 cycles of planet carrier, and shift fork 14-3 was rotated relative to the cam 14-2 cycle.What folder seedling formula was got seedling track enters Wei Jiamiao position, alms bowl section 15-1 top, and in the time that seedling claw 14 moves to folder seedling position, shift fork 14-3 swings around the lift section of cam 14-2, drives seedling-pushing rod 14-4 compression to push away seedling spring 14-5, and slides to housing 14-1 afterbody.The motion of seedling-pushing rod 14-4 makes to press from both sides seedling piece 14-8 and pushes two flat spring sheet 14-9 from outside, and two flat spring sheet 14-9 distortion clamp pot seedling; When seedling claw 14 moves to while getting seedling section 15-2, shift fork 14-3 is around the arc section motion of cam 14-2, thereby the relative seedling claw 14 of shift fork 14-3 is without swinging, and two flat spring sheet 14-9 keep clamped condition, and moves to and throw seedling section 15-4 with fortune seedling section 15-3 along getting seedling section 15-2 with seedling claw 14; Move to while throwing seedling section 15-4, shift fork 14-3 is pushing away under the effect of seedling spring 14-5, reverse-running section around cam 14-2 swings fast, drive seedling-pushing rod 14-4 to slide to housing 14-1 head, making to push away seedling piece 14-7 is pushed open from two flat spring sheet 14-9 inner sides, the piece 14-6 that simultaneously bulldozes acts on substrate pot body, and seedling is sent in seedling-planting device, completes throwing seedling; Move to while replying section 15-5, shift fork 14-3 is around the arc section motion of cam 14-2, the relative seedling claw 14 of shift fork 14-3 is without swinging, two flat spring sheet 14-9 keep open configuration, and get seedling track 15 with seedling claw 14 along folder seedling formulas and move to folder seedling position, prepare to get seedling next time, thereby complete smoothly the folder seedling of potted-seedling transplanting, send seedling and put seedling action, the mechanization that realizes potted-seedling transplanting is got seedling, is thrown seedling.
The non-knuckle-tooth of this free second order-eccentric non-knuckle-tooth pot seedling folder seedling formula seedling picking mechanism is in an operation cycle, and 14 2 not constant amplitude swings of seedling claw, form folder seedling formula and get seedling track 15.Seedling claw 14 is got in seedling track 15 motion processes along folder seedling formula, from the parallel upper surface near native alms bowl of the inferoanterior of pot seedling, be convenient to clamp the stem stalk position that seedling is minimum, press from both sides subsequently seedling formula and get seedling track 15 and have one section of near linear section, and perpendicular to native alms bowl, meet and vertically take pot seedling requirement out of.The non-knuckle-tooth pot seedling folder of the non-knuckle-tooth of this free second order-eccentric seedling formula seedling picking mechanism can realize put down into alms bowl, directly lift seedlings, surely throw seedling get seedling job requirement.
Claims (3)
1. the non-knuckle-tooth of free second order-eccentric non-knuckle-tooth pot seedling folder seedling formula seedling picking mechanism, comprise central shaft, planet carrier, free second order center non-circular gear, the first jackshaft, the middle non-circular gear of the first free second order, the first middle eccentric gear, the first planet axis, the first planet non-circular gear, the second jackshaft, the middle non-circular gear of the second free second order, the second middle eccentric gear, the second planet axis, the second planet non-circular gear and seedling claw, it is characterized in that:
One end of described central shaft is connected with power set, and the other end and planet carrier are fixed; Described free second order center non-circular gear empty set, on central shaft, and is fixed with frame; Described the first jackshaft and the second jackshaft are symmetricly set on central shaft both sides, and are all connected with planet carrier bearing; In the middle of the first free second order, in the middle of non-circular gear and first, eccentric gear is all fixed on the first jackshaft, and in the middle of the second free second order, in the middle of non-circular gear and second, eccentric gear is all fixed on the second jackshaft; Described the first planet axis and the second planet axis are symmetricly set on central shaft both sides, and are all connected with planet carrier bearing; One end of the first planet axis and the second planet axis is all stretched out planet carrier housing outer and a seedling claw and is fixed; The first planet non-circular gear is fixed in the first planet axis, and the second planet non-circular gear is fixed in the second planet axis; Described free second order center non-circular gear engages with non-circular gear in the middle of non-circular gear in the middle of the first free second order and the second free second order simultaneously; In the middle of first, eccentric gear engages with the first planet non-circular gear, and the second middle eccentric gear engages with the second planet non-circular gear;
Described planet carrier rotates, and the head cusp of seedling claw forms folder seedling formula and gets seedling track; It is sealing and the plane smooth curve without latch closure that described folder seedling formula is got seedling track, comprises entering alms bowl section, get seedling section, transport seedling section, throw seedling section and replying section of order head and the tail connection successively; The top that enters alms bowl section is connected with the bottom of getting seedling section, and bottom is connected with the top of replying section; Described enter alms bowl section be the straightway that is parallel to cave dish upper surface, the bottom of getting seedling section is segmental arc, top is the straightway perpendicular to cave dish upper surface; The linearity of enter alms bowl section, getting the top straightway of seedling section is 1mm/20mm～1mm/10mm, and the top length of straigh line of getting seedling section is greater than the height of cave dish.
2. the non-knuckle-tooth pot seedling folder of the non-knuckle-tooth of the free second order of one according to claim 1-eccentric seedling formula seedling picking mechanism, is characterized in that: described seedling claw comprises housing, cam, shift fork, seedling-pushing rod, pushes away seedling spring, the piece of bulldozing, push away seedling piece, folder seedling piece and spring leaf; Cam of difference empty set in the first planet axis and the second planet axis, two cams are all fixed with planet carrier; Described shift fork is arranged in housing by bearing pin, and one end is connected by cam is secondary with cam, and the other end is connected by cam is secondary with seedling-pushing rod; Described seedling-pushing rod and inner walls are slidably connected, and afterbody is connected with housing afterbody by pushing away seedling spring; Described soil-shifting piece, push away seedling piece and folder seedling piece is all fixed on seedling-pushing rod head, and arrange successively along head to the caudal directions of seedling-pushing rod, folder seedling piece offers U-lag; Two flat spring sheet spacing are arranged on soil-shifting piece top, and one end is all fixed on the both sides, top of housing, and the other end all stretches in the U-lag of folder seedling piece, and is separately positioned on the both sides that push away seedling piece.
3. the non-knuckle-tooth of the free second order of one according to claim 1-eccentric non-knuckle-tooth pot seedling folder seedling formula seedling picking mechanism, is characterized in that: in the middle of the first described free second order, in the middle of non-circular gear and the second free second order, the pitch curve parameter of non-circular gear is in full accord; The first described planet non-circular gear and the pitch curve parameter of the second planet non-circular gear are in full accord.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320782682.7U CN203597065U (en) | 2013-11-27 | 2013-11-27 | Freedom two-step non-circular gear-eccentric non-circular gear pot seedling clamping type seedling taking mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320782682.7U CN203597065U (en) | 2013-11-27 | 2013-11-27 | Freedom two-step non-circular gear-eccentric non-circular gear pot seedling clamping type seedling taking mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN203597065U true CN203597065U (en) | 2014-05-21 |
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| CN201320782682.7U Expired - Lifetime CN203597065U (en) | 2013-11-27 | 2013-11-27 | Freedom two-step non-circular gear-eccentric non-circular gear pot seedling clamping type seedling taking mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103636328A (en) * | 2013-11-27 | 2014-03-19 | 浙江理工大学 | Free two-order non-circular gear-eccentric non-circular gear pot seedling transplanting and clamping type seedling pickling mechanism |
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2013
- 2013-11-27 CN CN201320782682.7U patent/CN203597065U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103636328A (en) * | 2013-11-27 | 2014-03-19 | 浙江理工大学 | Free two-order non-circular gear-eccentric non-circular gear pot seedling transplanting and clamping type seedling pickling mechanism |
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