CN110663322A - Seedling sowing linkage device of rice seedling sowing machine - Google Patents
Seedling sowing linkage device of rice seedling sowing machine Download PDFInfo
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- CN110663322A CN110663322A CN201911021390.XA CN201911021390A CN110663322A CN 110663322 A CN110663322 A CN 110663322A CN 201911021390 A CN201911021390 A CN 201911021390A CN 110663322 A CN110663322 A CN 110663322A
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 47
- 235000009566 rice Nutrition 0.000 title claims abstract description 47
- 238000009331 sowing Methods 0.000 title claims abstract description 41
- 240000007594 Oryza sativa Species 0.000 title abstract 2
- 230000005540 biological transmission Effects 0.000 claims abstract description 175
- 230000007246 mechanism Effects 0.000 claims abstract description 135
- 238000006073 displacement reaction Methods 0.000 claims abstract description 58
- 230000007704 transition Effects 0.000 claims description 69
- 241000209094 Oryza Species 0.000 claims description 45
- 230000033001 locomotion Effects 0.000 claims description 14
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008653 root damage Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C11/00—Transplanting machines
- A01C11/003—Transplanting machines for aquatic plants; for planting underwater, e.g. rice
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C11/00—Transplanting machines
- A01C11/006—Other parts or details or planting machines
Abstract
The invention discloses a seedling sowing linkage device of a rice seedling sowing machine, which comprises a total power mechanism, a seedling ejecting assembly, a telescopic seedling ejecting linkage mechanism and a longitudinal displacement linkage mechanism, wherein the total power mechanism is connected with the seedling ejecting assembly; the longitudinal displacement linkage mechanism comprises a power driving mechanism and a power transmission mechanism; the power driving mechanism comprises a driving bevel gear, two driven bevel gears and a power transmission rod, the driving bevel gear is connected with a power source of the rotary table, the two driven bevel gears are arranged on the power transmission rod, are respectively positioned on two sides of the driving bevel gear and are matched and connected with the driving bevel gear, the driving bevel gear is an incomplete gear, and when the driving bevel gear is meshed with one of the driven bevel gears, the other driven bevel gear is separated from the driving bevel gear; the power transmission mechanism comprises a transmission gear and a transmission rack which are arranged on the power transmission rod, and the transmission rack is connected with the seedling ejecting assembly. The invention has convenient installation, reduces the installation difficulty and is not easy to be blocked.
Description
Technical Field
The invention relates to a rice seedling sowing machine, in particular to a seedling sowing linkage device of the rice seedling sowing machine.
Background
At present, the known rice planting machines are mainly divided into two types: the first type is a traditional rice transplanter which tears and cuts blanket-shaped seedling roots based on a manipulator (seedling claw) and transplants the seedling roots in separate pockets; the second type is a novel rice transplanter which is based on pot-disk seedling raising with disk and soil-carrying planting. The first type of rice planting machine has mature technology, achieves high planting efficiency by engine high-frequency driving, has the defects of root damage, long seedling turning period after planting, high power required by seedling root tearing and seedling transplanting and mud transplanting operation, high requirement on mechanical material strength, heavy mechanism, high material consumption cost and inconvenient operation in hilly rice areas. The second type of rice planting machine has the advantages that the rice planting machine can pre-divide the soil carried by the rice seedlings, can survive without a green turning period after planting, is accurate and controllable in the number of seedlings per bag, is suitable for planting both the rice seedlings with soil (such as conventional rice) and the rice seedlings with soil (such as hybrid rice) and is particularly suitable for operation in hilly rice areas.
For the second type of rice planting machine, the invention patent with application publication number CN109362295A discloses an improved light and simple array type seedling planter, the moving driving mechanism in the seedling planter comprises a first pushing member and a stepping driving mechanism for driving the first pushing member to make stepping switching movement, thereby realizing that the seedling-ejecting needle support makes stepping switching movement, and the seedling-ejecting needle is switched between corresponding grids of the grid seedling tray. However, since the step driving mechanism mainly comprises the incomplete gear, and the upper rack and the lower rack which are arranged above and below the incomplete gear, when the step driving mechanism is installed, the incomplete gear needs to be just meshed with the upper rack or the lower rack, and simultaneously, when the step driving mechanism works, the incomplete gear is ensured to be meshed with another rack immediately after leaving one of the racks, so that the seedling ejecting needle support can realize timely reversing motion. Therefore, there is a need for a seedling planting linkage device which is easy to install and smooth in operation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a seedling sowing linkage device of a rice seedling sowing machine, which is convenient to install, reduces the installation difficulty and is not easy to block.
The purpose of the invention is realized by the following technical scheme:
a seedling sowing linkage device of a rice seedling sowing machine comprises a total power mechanism, a seedling ejecting assembly, a telescopic seedling ejecting linkage mechanism for driving the seedling ejecting assembly to perform telescopic seedling ejecting tasks and a longitudinal displacement linkage mechanism for driving the seedling ejecting assembly to perform longitudinal and horizontal switching motion between grids of a grid seedling tray; the device is characterized in that the longitudinal displacement linkage mechanism comprises a power driving mechanism and a power transmission mechanism; the power driving mechanism comprises a driving bevel gear, two driven bevel gears and a power transmission rod, wherein the two driven bevel gears are arranged on the power transmission rod, are respectively positioned on two sides of the driving bevel gear and are respectively connected with the driving bevel gear in a matching manner, the driving bevel gear is an incomplete gear, and when the driving bevel gear is meshed with one of the driven bevel gears, the other driven bevel gear is separated from the driving bevel gear; the power transmission mechanism comprises a transmission gear arranged on the power transmission rod and a transmission rack matched and connected with the transmission gear, and the transmission rack is connected with the seedling ejecting assembly;
the main power mechanism comprises a main power shaft, a seedling pushing power transmission mechanism and a longitudinal displacement transmission mechanism, and the main power shaft is connected with a rotary table of the rice seedling planter; the seedling ejecting power transmission mechanism comprises a first incomplete gear and a seedling ejecting transmission gear, the seedling ejecting transmission gear is meshed with the first incomplete gear, and the seedling ejecting transmission gear is connected with the telescopic seedling ejecting linkage mechanism through a seedling ejecting transmission assembly;
the longitudinal displacement transmission mechanism comprises a second incomplete gear and a longitudinal displacement transmission gear, the second incomplete gear is arranged on the main power shaft, the longitudinal displacement transmission gear is meshed with the second incomplete gear in a matched mode, and the longitudinal displacement transmission gear is connected with the main bevel gear through a longitudinal displacement transmission assembly.
In a preferred embodiment of the present invention, the longitudinal displacement linkage mechanism further comprises a longitudinal moving member, one end of the longitudinal moving member is connected to the transmission rack, and the other end of the longitudinal moving member is connected to the seedling ejecting assembly. Through the setting of vertical moving member, can shorten the length of transfer rack, reduce cost to can accomplish the transitional coupling between transfer rack and the top seedling subassembly well, simple structure.
According to a preferable scheme of the invention, the seedling ejecting needle assembly comprises a plurality of seedling ejecting needles and a fixing piece for fixing the seedling ejecting needles, the plurality of seedling ejecting needles are linearly and equidistantly arranged on the fixing piece, when one of the seedling ejecting needles is opposite to one of grids in the grid seedling tray, other seedling ejecting needles are opposite to the corresponding grids, one end of each seedling ejecting needle is a fixed end for connecting with the fixing piece, the other end of each seedling ejecting needle is a free end for ejecting seedlings, the fixing piece is connected with the rack through a sliding structure, and the telescopic seedling ejecting linkage mechanism is connected with the fixing piece.
Preferably, the telescopic seedling-ejecting linkage mechanism comprises a reciprocating type driving frame, a third incomplete gear and a seedling-ejecting gear shaft for driving the third incomplete gear to rotate; the reciprocating driving frame comprises an upper rack and a lower rack which are arranged in parallel, the upper rack and the lower rack are connected together through a connecting piece, and the third incomplete gear is arranged between the upper rack and the lower rack; the reciprocating type driving frame is connected with the fixing piece, and the seedling ejecting gear shaft is connected with the seedling ejecting transmission gear.
Preferably, the reciprocating driving frames and the third incomplete gears are respectively provided with two groups, and the reciprocating driving frames of each group of reciprocating driving frames and the third incomplete gears of each group of third incomplete gears are arranged in a one-to-one correspondence manner; two groups of third incomplete gears are arranged on the seedling-ejecting gear shaft; the two sets of seedling ejecting assemblies are oppositely arranged on the rack, and the two sets of reciprocating driving frames are respectively connected with the fixing pieces of the two sets of seedling ejecting assemblies. By adjusting the directions of the two third incomplete gears, specifically, when one of the third incomplete gears is meshed with the upper rack of the corresponding reciprocating driving frame, the other third incomplete gear is meshed with the lower rack of the corresponding reciprocating driving frame; at the moment, when the seedling-ejecting gear shaft rotates, each group of reciprocating driving frames can do reverse reciprocating motion under the driving of the corresponding third incomplete gear, so that the seedling ejecting motion of two oppositely arranged grid seedling trays is realized under the condition of one-step driving, the rapid seedling sowing is realized, and the seedling sowing efficiency is favorably improved.
Preferably, the number of the power transmission mechanisms is two, the transmission gear of each power transmission mechanism is arranged on the power transmission rod, and the transmission racks of the two power transmission mechanisms are respectively connected with the fixing pieces of the two seedling pushing assemblies. Two power transmission mechanisms are arranged, so that the two groups of seedling ejecting assemblies can be better driven.
In a preferable scheme of the invention, the seedling ejecting transmission assembly is composed of a toothed chain transmission mechanism; the seedling ejecting power transmission mechanism also comprises a first intermediate rod, and the seedling ejecting transmission gear is arranged on the first intermediate rod; the gear chain transmission mechanism comprises a first transition gear, a second transition gear and a transition chain, the first transition gear is arranged on the first intermediate rod, the second transition gear is arranged on the seedling ejecting gear shaft, and the transition chain is arranged on the first transition gear and the second transition gear in a surrounding mode. The power transmission between the seedling pushing power transmission mechanism and the telescopic seedling pushing linkage mechanism is realized by adopting a toothed chain transmission mechanism, and the structure is simple; in addition, the toothed chain transmission mechanism can adapt to different distances between the seedling ejecting power transmission mechanism and the telescopic seedling ejecting linkage mechanism so as to be convenient to adjust, the layout design of the seedling sowing mechanism is facilitated, and particularly compared with direct gear transmission, the toothed chain transmission mechanism can save space and is not influenced by space and distance.
Preferably, there are two sets of the toothed chain drive, the first transition gears of the two sets of the toothed chain drive are both arranged on the first intermediate lever, and the second transition gears are respectively arranged on two sides of the first intermediate lever. Through setting up two sets of tooth chain drive, can drive two and push up seedling gear shafts simultaneously and rotate, realize a plurality of seedling work of pushing up, improve and sow seedling efficiency.
In a preferred embodiment of the present invention, the longitudinal displacement transmission mechanism further includes a second intermediate rod, and the longitudinal displacement transmission gear is disposed on the second intermediate rod; the longitudinal displacement transmission assembly comprises a third transition gear and a fourth transition gear, the third transition gear is arranged on the second intermediate rod, the fourth transition gear is in meshed connection with the third transition gear, and a transition transmission shaft is arranged between the fourth transition gear and the driving bevel gear. By arranging the longitudinal displacement transmission assembly, the driving bevel gear is driven, so that the transverse movement driving of the seedling ejecting assembly is realized; the transmission of the gear is adopted, so that the connection with the driving bevel gear through the transition transmission shaft is convenient, and the structure is simple; in addition, through the cooperation of the third transition gear and the fourth transition gear, the longitudinal displacement linkage mechanism can be arranged below the toothed chain transmission mechanism, the positions of the third transition gear and the fourth transition gear are staggered, the space is fully and reasonably utilized, and interference can be avoided.
Preferably, the second middle rod is arranged below a rotary disc of the rice seedling planter, and the transition transmission shaft is positioned below the second middle rod. Therefore, the longitudinal displacement linkage mechanism is positioned below the turntable, the longitudinal displacement linkage mechanism is beneficial to being staggered with the telescopic seedling pushing linkage mechanism and the seedling pushing transmission assembly in the vertical direction, the interference between the telescopic seedling pushing linkage mechanism and the seedling pushing transmission assembly is avoided, and the space of the seedling sowing machine can be fully and reasonably utilized.
Compared with the prior art, the invention has the following beneficial effects:
1. the power driving mechanism in the longitudinal displacement linkage mechanism adopts the matching mode of bevel gears to realize the forward and reverse rotation of the power transmission rod, thereby realizing the reciprocating motion of the seedling ejecting component and having simple structure.
2. The power driving mechanism adopts the matching mode of the bevel gear, so that the installation is convenient, and the installation difficulty of the bevel gear is effectively reduced compared with the incomplete gear rack reciprocating driving mode; and when the driving bevel gear is meshed and converted between the two driven bevel gears, the reciprocating stepping displacement without reversing and desynchronizing can be realized, the locking is not easy, the normal operation of the rice seedling sowing machine is ensured, and the maintenance is convenient.
3. The invention realizes the intermittent replacement work of transverse telescopic seedling poking of the seedling ejecting rod and longitudinal displacement of the seedling ejecting rod by utilizing the matching of the first incomplete gear and the second incomplete gear under the driving of a power source (a rotary disc), and has the advantages of ingenious design and simple structure.
Drawings
Fig. 1 is a schematic perspective view of a seedling planting linkage device of a rice seedling planting machine according to one embodiment of the present invention.
Fig. 2 is a partially enlarged view of the seedling-ejecting assembly and the longitudinal displacement linkage mechanism in fig. 1.
Fig. 3 is a schematic perspective view of the longitudinal displacement linkage mechanism.
Fig. 4 is a schematic perspective view of the power driving mechanism.
Detailed Description
The present invention will be further described with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.
Referring to fig. 1-4, the seedling-planting linkage device of the rice seedling planter of the embodiment comprises a total power mechanism, a seedling-ejecting component, a telescopic seedling-ejecting linkage mechanism for driving the seedling-ejecting component to perform a telescopic seedling-ejecting task, and a longitudinal displacement linkage mechanism for driving the seedling-ejecting component to perform longitudinal and horizontal switching motion between grids of a grid seedling tray; the longitudinal displacement linkage mechanism comprises a power driving mechanism and a power transmission mechanism; the power driving mechanism comprises a driving bevel gear 9, two driven bevel gears 10 and a power transmission rod 11, wherein the two driven bevel gears 10 are arranged on the power transmission rod 11, are respectively positioned on two sides of the driving bevel gear 9 and are respectively connected with the driving bevel gear 9 in a matching manner, the driving bevel gear 9 is an incomplete gear, and when the driving bevel gear 9 is meshed with one driven bevel gear 10, the other driven bevel gear 10 is separated from the driving bevel gear 9; the power transmission mechanism comprises a transmission gear 13 arranged on the power transmission rod 11 and a transmission rack 12 connected with the transmission gear 13 in a matching manner, and the transmission rack 12 is connected with the seedling ejecting assembly.
The main power mechanism comprises a main power shaft 2, a seedling ejecting power transmission mechanism and a longitudinal displacement transmission mechanism, wherein the main power shaft 2 is connected with a rotary table 1 of the rice seedling sowing mechanism; the seedling ejecting power transmission mechanism comprises a first incomplete gear 3 and a seedling ejecting transmission gear 16, the seedling ejecting transmission gear 16 is meshed with the first incomplete gear 3, and the seedling ejecting transmission gear 16 is connected with the telescopic seedling ejecting linkage mechanism through a seedling ejecting transmission assembly;
the longitudinal displacement transmission mechanism comprises a second incomplete gear 7 and a longitudinal displacement transmission gear 6, the second incomplete gear 7 is arranged on the main power shaft 2, the longitudinal displacement transmission gear 6 is meshed with the second incomplete gear 7 in a matched mode, and the longitudinal displacement transmission gear 6 is connected with the driving bevel gear 9 through a longitudinal displacement transmission assembly.
Referring to fig. 2-3, the longitudinal displacement linkage mechanism further comprises a longitudinal moving member 14, one end of the longitudinal moving member 14 is connected with the transmission rack 12, and the other end is connected with the seedling-pushing assembly. Through the arrangement of the longitudinal moving piece 14, the length of the transmission rack 12 can be shortened, the cost is reduced, transition connection between the transmission rack 12 and the seedling ejecting assembly can be well completed, and the structure is simple.
Referring to fig. 1 and 2, the seedling ejecting needle assembly comprises a plurality of seedling ejecting needles and a fixing member for fixing the seedling ejecting needles, the seedling ejecting needles are linearly and equidistantly arranged on the fixing member, when one of the seedling ejecting needles is opposite to one of the grids in the grid seedling tray, the other seedling ejecting needles are opposite to the corresponding grid, one end of each seedling ejecting needle is a fixed end for being connected with the fixing member, the other end of each seedling ejecting needle is a free end for ejecting seedlings, the fixing member is connected with the rack through a sliding structure, and the telescopic seedling ejecting linkage mechanism is connected with the fixing member.
Referring to fig. 2, the telescopic seedling-ejecting linkage mechanism comprises a reciprocating type driving frame 20, a first incomplete gear and a seedling-ejecting gear shaft 20 for driving the first incomplete gear to rotate; the reciprocating driving frame 20 comprises an upper rack and a lower rack which are arranged in parallel, the upper rack and the lower rack are connected together through a connecting piece, and the first incomplete gear is arranged between the upper rack and the lower rack; the reciprocating type driving frame 20 is connected with the fixing piece, and the seedling ejecting gear shaft 20 is connected with a rotary disc power source.
Referring to fig. 2, there are two sets of reciprocating driving frames 20 and third incomplete gears, and the reciprocating driving frame 20 of each set of reciprocating driving frame 20 and the third incomplete gear of each set of third incomplete gear are arranged in a one-to-one correspondence manner; two groups of third incomplete gears are arranged on the seedling-ejecting gear shaft 20; the two groups of seedling ejecting assemblies are oppositely arranged on the rack, and the two groups of reciprocating driving frames 20 are respectively connected with the fixing pieces of the two groups of seedling ejecting assemblies. By adjusting the directions of the two third incomplete gears, specifically, when one of the third incomplete gears is meshed with the upper rack of the corresponding reciprocating driving frame 20, the other third incomplete gear is meshed with the lower rack of the corresponding reciprocating driving frame 20; at this time, when the seedling-ejecting gear shaft 20 rotates, each reciprocating driving frame 20 can make reverse reciprocating motion under the driving of the corresponding third incomplete gear, so that the seedling-ejecting motion of two oppositely arranged grid seedling trays is realized under the condition of one-step driving, the rapid seedling sowing is realized, and the seedling-ejecting efficiency is favorably improved.
Referring to fig. 2 and 3, the number of the power transmission mechanisms is two, the transmission gear 13 of each power transmission mechanism is arranged on the power transmission rod 11, the transmission racks 12 of the two power transmission mechanisms are provided with longitudinal moving members 14, and the longitudinal moving members 14 on the two transmission racks 12 are respectively connected with the fixing members of the two seedling pushing assemblies. Two power transmission mechanisms are arranged, so that the two groups of seedling ejecting assemblies can be better driven.
The seedling ejecting component and the telescopic seedling ejecting linkage mechanism of the embodiment can be referred to as a seedling ejecting needle component and a telescopic driving mechanism in an invention patent application with application publication number of CN109362295A in an improved light and simple array type seedling planter.
Referring to fig. 2, the seedling-pushing transmission assembly is composed of a toothed chain transmission mechanism; the seedling ejecting power transmission mechanism further comprises a first intermediate rod 17, and the seedling ejecting transmission gear 16 is arranged on the first intermediate rod 17; the gear chain transmission mechanism comprises a first transition gear 15, a second transition gear and a transition chain 19, wherein the first transition gear 15 is arranged on the first intermediate rod 17, the second transition gear is arranged on the seedling ejecting gear shaft 20, and the transition chain 19 is arranged on the first transition gear 15 and the second transition gear in a surrounding mode. The power transmission between the seedling pushing power transmission mechanism and the telescopic seedling pushing linkage mechanism is realized by adopting a toothed chain transmission mechanism, and the structure is simple; in addition, the toothed chain transmission mechanism can adapt to different distances between the seedling ejecting power transmission mechanism and the telescopic seedling ejecting linkage mechanism so as to be convenient to adjust, the layout design of the seedling sowing mechanism is facilitated, and particularly compared with direct gear transmission, the toothed chain transmission mechanism can save space and is not influenced by space and distance.
Referring to fig. 2, there are two sets of the toothed chain drive, the first transition gears 15 of the two sets of the toothed chain drive are both arranged on the first intermediate lever 17, and the second transition gears are respectively arranged on both sides of the first intermediate lever 17. Through setting up two sets of tooth chain drive, can drive two and push up seedling pinion shafts 20 simultaneously and rotate, realize a plurality of seedling work of pushing up, improve and sow seedling efficiency.
Referring to fig. 2, the longitudinal displacement transmission mechanism further comprises a second intermediate lever 18, and the longitudinal displacement transmission gear 6 is arranged on the second intermediate lever 18; the longitudinal displacement transmission assembly comprises a third transition gear 4 and a fourth transition gear 5, the third transition gear 4 is arranged on the second intermediate rod 18, the fourth transition gear 5 is in meshed connection with the third transition gear 4, and a transition transmission shaft 8 is arranged between the fourth transition gear 5 and the driving bevel gear 9. By arranging the longitudinal displacement transmission assembly, the driving bevel gear 9 is driven, so that the transverse movement driving of the seedling ejecting assembly is realized; the transmission of the gear is adopted, so that the connection between the transition transmission shaft 8 and the driving bevel gear 9 is convenient, and the structure is simple; in addition, through the cooperation of the third transition gear 4 and the fourth transition gear 5, the longitudinal displacement linkage mechanism can be arranged below the gear chain transmission mechanism, the positions of the third transition gear and the fourth transition gear are staggered, the space is fully and reasonably utilized, and interference can be avoided.
Referring to fig. 2, the second intermediate lever 18 is arranged below the rotary table 1 of the rice seedling planter, and the transition transmission shaft 8 is arranged below the second intermediate lever 18. Therefore, the longitudinal displacement linkage mechanism is positioned below the turntable 1, the telescopic seedling pushing linkage mechanism and the seedling pushing transmission assembly are beneficial to being staggered in the vertical direction, the interference between the telescopic seedling pushing linkage mechanism and the seedling pushing transmission assembly is avoided, and the space of the seedling sowing machine can be fully and reasonably utilized.
With reference to fig. 3, the longitudinal displacement member 14 comprises a transition member 21 and a support member; two transition pieces 21 are arranged, and the two transition pieces 21 are respectively connected with two transmission racks; the support comprises two oppositely arranged support rods 23 and a connecting rod 24, and the connecting rod 24 is arranged between the two support rods 23 and is positioned at the end parts of the two support rods 23; the two transition pieces 21 are connected to the connecting rod 24. The longitudinal moving piece 14 is convenient to be connected with two transmission racks of two groups of power transmission mechanisms, and in addition, the support piece is convenient to be connected with the seedling ejecting assembly.
Referring to fig. 3, the support member is provided with a longitudinal guide rail 22, and the longitudinal guide rail 22 is disposed on two support rods 23 and is perpendicular to the two support rods 23. The longitudinal guide rail 22 is arranged to be matched with a slide block of a fixing part on the seedling ejecting component, so that the guiding effect on the seedling ejecting component is realized; on the other hand, the longitudinal guide rail 22 and the support rod 23 are arranged vertically, so that the seedling pushing assembly can be pushed to move under the action of the longitudinal guide rail 22 while the support member transversely moves, the two purposes are achieved, the design is ingenious, and the structure is simple.
Referring to fig. 3, a transverse guide mechanism is arranged between the bottom of the support rod 23 and the frame, and the transverse guide mechanism comprises a transverse guide rail and a transverse slide block 25, the transverse guide rail is arranged on the frame, and the transverse slide block 25 is arranged at the bottom of the support rod 23. Through the setting of horizontal guiding mechanism, improve the mobility stability of whole lateral shifting frame, be favorable to improving and remove the precision.
Referring to fig. 1-4, the working principle of the seedling sowing linkage device of the rice seedling sowing machine of the present embodiment is as follows:
when the rice seedling planter works, the power mechanisms such as manpower or a motor and the like are used for driving the rotary disc 1 of the rice seedling planter to rotate for a circle, and in the process that the rotary disc 1 rotates for a circle (the following transverse and longitudinal directions are described and are specified by the visual angle of an operator):
firstly, a first incomplete gear 3 and a second incomplete gear 7 which are arranged on a main power shaft 2 rotate, at the moment, gear teeth on the first incomplete gear 3 are meshed with a seedling ejecting transmission gear 16 and drive the seedling ejecting transmission gear 16 to rotate, the seedling ejecting gear shaft 20 is driven to rotate by a toothed chain transmission mechanism, a reciprocating type driving frame 20 arranged on the seedling ejecting gear shaft 20 completes transverse extending and retracting actions, and therefore seedling ejecting work (namely seedling sowing) is completed, but in the process, a smooth part of the second incomplete gear 7 corresponds to the gear teeth of a longitudinal displacement transmission gear 6 (namely the second incomplete gear 7 is separated from the longitudinal displacement transmission gear 6), and the longitudinal displacement linkage mechanism stops moving. When the seedling ejecting work is finished and the reciprocating type moving frame is reset, the first incomplete gear 3 is separated from the seedling ejecting transmission gear 16, and the seedling ejecting gear shaft 20 stops moving; and then, the gear teeth on the second incomplete gear 7 are meshed with the longitudinal displacement transmission gear 6 to drive the longitudinal displacement transmission gear 6 to rotate, so that the driving bevel gear 9 is driven to drive one driven bevel gear 10 to rotate, the transmission gear 13 is driven to rotate under the action of the power transmission rod 11, the transmission rack 12 matched with the transmission gear 13 moves forwards (or backwards), the whole seedling ejecting assembly moves longitudinally one grid under the action of the longitudinal moving piece, the longitudinal stepping movement of the seedling ejecting assembly is completed, and the seedling ejecting operation at the next position is waited.
When the turntable 1 continues to rotate, the gear teeth of the first incomplete gear 3 are meshed with the seedling ejecting transmission gear 16, the next seedling ejecting is continued, the smooth part of the second incomplete gear 7 corresponds to the gear teeth of the longitudinal displacement transmission gear 6, and the longitudinal displacement linkage mechanism stops moving; the seedling pushing work is carried out in such a way repeatedly, and the rice seedling sowing is realized.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
Claims (10)
1. A seedling sowing linkage device of a rice seedling sowing machine comprises a total power mechanism, a seedling ejecting assembly, a telescopic seedling ejecting linkage mechanism for driving the seedling ejecting assembly to perform telescopic seedling ejecting tasks and a longitudinal displacement linkage mechanism for driving the seedling ejecting assembly to perform longitudinal and horizontal switching motion between grids of a grid seedling tray; the device is characterized in that the longitudinal displacement linkage mechanism comprises a power driving mechanism and a power transmission mechanism; the power driving mechanism comprises a driving bevel gear, two driven bevel gears and a power transmission rod, wherein the two driven bevel gears are arranged on the power transmission rod, are respectively positioned on two sides of the driving bevel gear and are respectively connected with the driving bevel gear in a matching manner, the driving bevel gear is an incomplete gear, and when the driving bevel gear is meshed with one of the driven bevel gears, the other driven bevel gear is separated from the driving bevel gear; the power transmission mechanism comprises a transmission gear arranged on the power transmission rod and a transmission rack matched and connected with the transmission gear, and the transmission rack is connected with the seedling ejecting assembly;
the main power mechanism comprises a main power shaft, a seedling pushing power transmission mechanism and a longitudinal displacement transmission mechanism, and the main power shaft is connected with a rotary table of the rice seedling planter; the seedling ejecting power transmission mechanism comprises a first incomplete gear and a seedling ejecting transmission gear, the seedling ejecting transmission gear is meshed with the first incomplete gear, and the seedling ejecting transmission gear is connected with the telescopic seedling ejecting linkage mechanism through a seedling ejecting transmission assembly;
the longitudinal displacement transmission mechanism comprises a second incomplete gear and a longitudinal displacement transmission gear, the second incomplete gear is arranged on the main power shaft, the longitudinal displacement transmission gear is meshed with the second incomplete gear in a matched mode, and the longitudinal displacement transmission gear is connected with the main bevel gear through a longitudinal displacement transmission assembly.
2. A seedling sowing linkage device of a rice seedling sowing machine as claimed in claim 1, wherein the longitudinal displacement linkage mechanism further comprises a longitudinal moving member, one end of which is connected with the transmission rack and the other end of which is connected with the seedling ejecting assembly.
3. The rice seedling transplanting linkage device of the rice seedling transplanting machine as claimed in claim 1 or 2, wherein the seedling ejecting needle assembly comprises a plurality of seedling ejecting needles and a fixing member for fixing the seedling ejecting needles, the plurality of seedling ejecting needles are arranged on the fixing member in a linear and equidistant manner, when one of the seedling ejecting needles faces one of the grids in the grid seedling tray, the other seedling ejecting needles face the corresponding grid, one end of each seedling ejecting needle is a fixed end for connecting with the fixing member, the other end is a free end for ejecting seedlings, the fixing member is connected with the frame through a sliding structure, and the telescopic seedling ejecting linkage mechanism is connected with the fixing member.
4. The rice seedling sowing linkage device of the rice seedling sowing machine as claimed in claim 3, wherein the telescopic seedling ejecting linkage mechanism comprises a reciprocating type driving frame, a third incomplete gear and a seedling ejecting gear shaft for driving the third incomplete gear to rotate; the reciprocating driving frame comprises an upper rack and a lower rack which are arranged in parallel, the upper rack and the lower rack are connected together through a connecting piece, and the third incomplete gear is arranged between the upper rack and the lower rack; the reciprocating type driving frame is connected with the fixing piece, and the seedling ejecting gear shaft is connected with the seedling ejecting transmission gear.
5. The rice seedling sowing linkage device of claim 4, wherein there are two sets of the reciprocating driving frames and the third incomplete gears, and the reciprocating driving frame of each set of reciprocating driving frames is in one-to-one correspondence with the third incomplete gear of each set of the third incomplete gears; two groups of third incomplete gears are arranged on the seedling-ejecting gear shaft; the two sets of seedling ejecting assemblies are oppositely arranged on the rack, and the two sets of reciprocating driving frames are respectively connected with the fixing pieces of the two sets of seedling ejecting assemblies.
6. The rice seedling sowing linkage device of claim 5, wherein the number of the power transmission mechanisms is two, the transmission gear of each power transmission mechanism is arranged on the power transmission rod, and the transmission racks of the two power transmission mechanisms are respectively connected with the fixing pieces of the two seedling ejecting assemblies.
7. The rice seedling sowing linkage device of the rice seedling sowing machine according to claim 5, wherein the seedling ejecting transmission assembly is composed of a toothed chain transmission mechanism; the seedling ejecting power transmission mechanism also comprises a first intermediate rod, and the seedling ejecting transmission gear is arranged on the first intermediate rod; the gear chain transmission mechanism comprises a first transition gear, a second transition gear and a transition chain, the first transition gear is arranged on the first intermediate rod, the second transition gear is arranged on the seedling ejecting gear shaft, and the transition chain is arranged on the first transition gear and the second transition gear in a surrounding mode.
8. The rice seedling sowing linkage device of claim 7, wherein the toothed chain transmission mechanisms are provided in two groups, the first transition gears of the two groups of toothed chain transmission mechanisms are both arranged on the first intermediate rod, and the second transition gears are respectively arranged on two sides of the first intermediate rod.
9. A seedling sowing linkage device of a rice seedling sowing machine according to claim 1, wherein the longitudinal displacement transmission mechanism further comprises a second intermediate rod, and the longitudinal displacement transmission gear is arranged on the second intermediate rod; the longitudinal displacement transmission assembly comprises a third transition gear and a fourth transition gear, the third transition gear is arranged on the second intermediate rod, the fourth transition gear is in meshed connection with the third transition gear, and a transition transmission shaft is arranged between the fourth transition gear and the driving bevel gear.
10. The rice seedling sowing linkage device of claim 9, wherein the second intermediate lever is disposed below a turntable of the rice seedling sowing machine, and the transition transmission shaft is disposed below the second intermediate lever.
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