CN110651574B - Rice seedling sowing machine - Google Patents
Rice seedling sowing machine Download PDFInfo
- Publication number
- CN110651574B CN110651574B CN201911021387.8A CN201911021387A CN110651574B CN 110651574 B CN110651574 B CN 110651574B CN 201911021387 A CN201911021387 A CN 201911021387A CN 110651574 B CN110651574 B CN 110651574B
- Authority
- CN
- China
- Prior art keywords
- seedling
- gear
- assembly
- lifting
- pushing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Transplanting Machines (AREA)
- Sowing (AREA)
Abstract
The invention discloses a rice seedling sowing machine, which comprises a total power mechanism, a traveling mechanism, a seedling tray assembly and a seedling sowing mechanism, wherein the total power mechanism is arranged on the upper surface of the seedling tray assembly; the seedling sowing assembly comprises a seedling ejection assembly, a telescopic seedling ejection linkage mechanism and a longitudinal displacement linkage mechanism; the longitudinal displacement linkage mechanism comprises a power driving mechanism and a power transmission mechanism, wherein the power driving mechanism comprises a driving bevel gear, two driven bevel gears and a power transmission rod; the bottom of the seedling ejection assembly is provided with a seedling tray downward-moving linkage mechanism, and the seedling tray downward-moving linkage mechanism comprises a blocking support assembly and a switching power assembly for pushing the blocking support assembly to perform longitudinal horizontal switching movement. The seedling lifting device can effectively prevent the seedling from lifting, does not need to be additionally provided with a power mechanism for driving the grid seedling tray to descend, has a simple structure, is convenient to install, and is not easy to be blocked during working.
Description
Technical Field
The invention relates to crop equipment, in particular to a rice seedling sowing machine.
Background
Currently, known rice planting machines are mainly divided into two categories: the first type is a traditional transplanter for transplanting in separate pockets based on tearing and cutting blanket-shaped seedling roots by a mechanical arm (seedling claw); the second type is a novel seedling planting machine based on a pot tray seedling raising belt disc with soil planting. The first type of rice planting machine is mature in technology, high planting efficiency is achieved through high-frequency driving of an engine, the defects are root injury, seedlings need to be in a longer green-turning period after planting, because the power required by seedling root tearing and seedling transplanting and mud entering operation is high, the mechanical material strength requirement is high, and the mechanism is generally heavy, the consumable energy consumption cost is high, and the operation in hilly rice areas is inconvenient. The second type of rice planting machine has the advantages of pre-carrying soil, no reviving period after planting, and accurate and controllable seedling number per pocket, is suitable for planting more seedlings (such as Chang Guidao) and less seedlings (such as hybrid rice), and is particularly suitable for operation in hilly rice areas.
For the second type of rice planting machinery, the invention patent with the application publication number of CN109362295A discloses an improved light-simple array seedling planter, and in order to avoid seedling roof leakage, the invention patent application adds a stepping descending driving mechanism, and the structure of the whole equipment is more complex although a grid seedling tray can be smoothly driven to descend and the situation that the seedling roof leakage does not occur; in addition, when the seedling lifting assembly is driven to longitudinally move, the seedling lifting assembly is completed by adopting an incomplete gear and a reciprocating driving frame, so that the phenomenon of reversing jamming is easy to occur or the reversing idle stroke is easy to occur in the driving process, and the installation difficulty is high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a rice seedling sowing machine which can effectively prevent the seedling from leaking, does not need to additionally provide a power mechanism for driving a grid seedling tray to descend, has a simple structure and is convenient to install.
The aim of the invention is achieved by the following technical scheme:
a rice seedling sowing machine comprises a main power mechanism, a travelling mechanism, a frame arranged on the travelling mechanism, and a seedling tray assembly and a seedling sowing assembly which are arranged on the frame; wherein, the seedling tray component comprises a grid seedling tray which is arranged on the frame and is vertical to the horizontal plane; the seedling sowing assembly comprises a seedling ejection assembly, a telescopic seedling ejection linkage mechanism for driving the seedling ejection assembly to perform telescopic seedling ejection tasks, and a longitudinal displacement linkage mechanism for driving the seedling ejection assembly to perform longitudinal horizontal switching movement between grids of the grid seedling tray; it is characterized in that the method comprises the steps of,
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 at two sides of the driving bevel gear and are in matched connection with the driving bevel gear, the driving bevel gear is an incomplete gear, when the driving bevel gear is meshed with the former driven bevel gear, the latter driven bevel gear is separated from the driving bevel gear, and when the driving bevel gear is separated from the former driven bevel gear, the latter driven bevel gear is meshed with 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; the power output piece of the total power mechanism is connected with the drive bevel gear;
the bottom of the seedling ejection assembly is provided with a seedling tray downward-moving linkage mechanism, and the seedling tray downward-moving linkage mechanism comprises a blocking support assembly and a switching power assembly for pushing the blocking support assembly to perform longitudinal horizontal switching movement; the blocking support assembly comprises two blocking rods and an intermediate connecting rod, the two blocking rods are respectively arranged at two ends of the intermediate connecting rod, the two blocking rods are respectively positioned at corresponding positions of two vertical sides of the grid seedling tray, comb-shaped retaining strips are respectively arranged on the two vertical sides of the grid seedling tray, and the two blocking rods are respectively arranged in one-to-one correspondence with the comb-shaped retaining strips at two sides; the switching power assembly comprises a pushing driving piece and two seedling ejection limiting pieces; the seedling ejection assembly is arranged on the pushing driving piece, the pushing driving piece is in friction contact connection with the seedling ejection assembly, the pushing driving piece is connected with the conveying rack, and the pushing driving piece is positioned between the two blocking rods; the two seedling lifting limiting pieces are respectively arranged at two sides of the seedling lifting assembly and correspond to the heights of the seedling lifting assembly; when the seedling lifting assembly needs to move to perform grid switching, the longitudinal displacement linkage mechanism drives the pushing driving piece to longitudinally move, and simultaneously drives the seedling lifting assembly to move under the action of friction resistance; when the seedling ejecting assembly moves to the last grid on the grid seedling tray, and the grid seedling tray needs to be driven to descend, the longitudinal displacement linkage mechanism drives the pushing driving piece to continuously move longitudinally, at the moment, the seedling ejecting limiting piece blocks the seedling ejecting assembly to stop moving, the pushing driving piece overcomes the friction force between the seedling ejecting assembly and the seedling ejecting assembly to independently move longitudinally and pushes the blocking supporting assembly to move, finally, two blocking rods are switched between comb-shaped bars of the grid seedling tray, and the grid seedling tray descends under the action of gravity.
The invention relates to a preferable scheme, wherein the total power mechanism comprises a rotary table, a main power shaft, a seedling-ejecting power transmission mechanism and a longitudinal displacement transmission mechanism, and the main power shaft is connected with the rotary table; the seedling lifting power transmission mechanism comprises a first incomplete gear and a seedling lifting transmission gear, wherein the seedling lifting transmission gear is meshed with the first incomplete gear, and the seedling lifting transmission gear is connected with the telescopic seedling lifting linkage mechanism through a seedling lifting 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 in meshed matching arrangement with the second incomplete gear, and the longitudinal displacement transmission gear is connected with the driving bevel gear through a longitudinal displacement transmission assembly.
Preferably, the seedling-lifting transmission assembly is composed of a toothed chain transmission mechanism; the seedling-lifting power transmission mechanism further comprises a first intermediate rod, and the seedling-lifting transmission gear is arranged on the first intermediate rod; the toothed chain transmission mechanism comprises a first transition gear, a second transition gear and a transition chain, wherein the first transition gear is arranged on the first intermediate rod, the second transition gear is arranged on a direct power source shaft of the telescopic seedling-lifting linkage mechanism, and the transition chain is arranged on the first transition gear and the second transition gear in a surrounding mode.
Preferably, the longitudinal displacement transmission mechanism further comprises a second intermediate lever, and the longitudinal displacement transmission gear is arranged on the second intermediate lever; 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 connected with the third transition gear in a meshed mode, and a transition transmission shaft is arranged between the fourth transition gear and the drive bevel gear.
According to a preferred scheme of the invention, the seedling-pushing needle assembly comprises a plurality of seedling-pushing needles and a fixing piece for fixing the seedling-pushing needles, the seedling-pushing needles are arranged on the fixing piece in a straight line at equal intervals, when one seedling-pushing needle faces against one grid in the grid seedling tray, other seedling-pushing needles face against the corresponding grid, one end of each seedling-pushing needle is a fixed end for being connected with the fixing piece, the other end of each seedling-pushing needle is a free end for pushing seedlings, the fixing piece is connected with the frame through a sliding structure, and the telescopic seedling-pushing linkage mechanism is connected with the fixing piece.
Preferably, the telescopic seedling-lifting linkage mechanism comprises a reciprocating driving frame, a third incomplete gear and a seedling-lifting gear shaft for driving the third incomplete gear to rotate, and the seedling-lifting gear shaft forms the direct power source shaft; 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 driving frame is connected with the fixing piece, and the seedling ejection gear shaft is connected with the seedling ejection transmission gear.
According to the invention, a supporting table is arranged at the corresponding position of the blocking rod, and the middle part of the blocking rod is supported on the supporting table.
According to the invention, the two ends of the middle connecting rod are respectively provided with the mounting bearings, one ends of the two blocking rods are correspondingly arranged on the mounting bearings, and the other ends extend to one side of the grid seedling tray.
According to a preferred scheme of the invention, a transverse guide mechanism is arranged between the pushing driving piece and the seedling ejection assembly, and comprises a transverse guide rail fixedly arranged on the pushing driving piece and a transverse sliding block matched with the transverse guide rail; the transverse sliding block is provided with a damping gasket, and the seedling ejection assembly is arranged on the damping gasket.
According to a preferred scheme of the invention, the seedling-lifting limiting piece is composed of a limiting rod which is transversely extended and arranged, and the limiting rod is perpendicular to the moving direction of the pushing driving piece.
Compared with the prior art, the invention has the following beneficial effects:
1. the power driving mechanism in the longitudinal displacement linkage mechanism adopts a bevel gear matching mode to realize the positive and negative rotation of the power transmission rod, thereby realizing the reciprocating motion of the seedling ejection assembly and having simple structure; in addition, the bevel gears are matched, so that the installation is convenient, and the installation difficulty of the bevel gears is effectively reduced compared with that of an incomplete rack and pinion reciprocating driving mode; and the drive bevel gear can realize reciprocating stepping displacement without reversing and step-out when in meshing conversion between the two driven bevel gears, is not easy to be blocked, ensures the normal operation of the rice seedling planter, and is convenient to maintain.
2. The pushing driving piece is connected with the seedling ejection assembly in a friction contact manner, so that when the seedling ejection assembly is driven to move, the pushing driving piece and the seedling ejection assembly move integrally at the same time, when the grid seedling tray is driven to descend, the seedling ejection assembly is used for ejecting seedlings of all grids of the same layer, and the pushing driving piece and the seedling ejection assembly move relatively, so that the positions of the seedling ejection assembly are kept unchanged, seedling ejection of all grids can be completed, and the seedling ejection assembly can be aligned with the grids of the descending grid seedling tray so as to carry out next-round seedling ejection operation.
Drawings
Fig. 1 is a schematic perspective view of one embodiment of the rice seedling sowing machine of the present invention.
Fig. 2 is a partial enlarged view of fig. 1.
Fig. 3 is an enlarged view of a portion of fig. 1 (the seedling-lifting assembly is located at a position corresponding to the last grid on the left side of the grid tray, and the pushing driving member has pushed the blocking rod to the left, which is not shown in the diagram of the seedling-lifting limiting member located on the left).
Fig. 4 is a perspective view of the blocking support assembly and switching power assembly of fig. 3.
Fig. 5 is a perspective view of a longitudinal displacement linkage.
Fig. 6 is a perspective view of the power drive mechanism.
FIGS. 7-11 are schematic illustrations of the structure of the seedling lifting assembly, the blocking support assembly, and the switching power assembly; fig. 7 is a schematic diagram when the seedling lifting assembly moves to the last grid of the grid seedling tray on the left, fig. 8 is a schematic diagram after the pushing driving member pushes the blocking rod on the left, fig. 9 is a schematic diagram in the process of reciprocating from left to right, fig. 10 is a schematic diagram when the seedling lifting assembly moves to the last grid of the grid seedling tray on the right, and fig. 11 is a schematic diagram after the pushing driving member pushes the blocking rod on the right.
Detailed Description
The invention is further described below with reference to examples and figures, but embodiments of the invention are not limited thereto.
Referring to fig. 1-3, the rice seedling sowing machine of the present embodiment includes a main power mechanism, a traveling mechanism 22, a frame arranged on the traveling mechanism 22, and a seedling tray assembly and a seedling sowing assembly arranged on the frame; wherein, the seedling tray component comprises a grid seedling tray 2a which is arranged on the frame and is vertical to the horizontal plane; the seedling sowing assembly comprises a seedling ejection assembly, a telescopic seedling ejection linkage mechanism for driving the seedling ejection assembly to perform telescopic seedling ejection tasks, and a longitudinal displacement linkage mechanism for driving the seedling ejection assembly to perform longitudinal horizontal switching movement between grids of the grid seedling tray; wherein:
referring to fig. 2, 3, 5 and 6, the longitudinal displacement linkage includes a power drive mechanism and a power transmission mechanism; the power driving mechanism comprises a drive 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 and are respectively positioned at two sides of the drive bevel gear 9 and are in matched connection with the drive bevel gear 9, the drive bevel gear 9 is an incomplete gear, and when the drive bevel gear 9 is meshed with one of the driven bevel gears 10, the other driven bevel gear 10 is separated from the drive bevel gear 9; the power transmission mechanism comprises a transmission gear 13 arranged on the power transmission rod 11 and a transmission rack 12 which is in matched connection with the transmission gear 13.
Referring to fig. 2, 3, 5 and 6, the total 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 turntable 1 of the rice seedling sowing mechanism; the seedling lifting power transmission mechanism comprises a first incomplete gear 3 and a seedling lifting transmission gear 16, the seedling lifting transmission gear 16 is meshed with the first incomplete gear 3, and the seedling lifting transmission gear 16 is connected with the telescopic seedling lifting linkage mechanism through a seedling lifting 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 in meshed matching arrangement with the second incomplete gear 7, and the longitudinal displacement transmission gear 6 is connected with the driving bevel gear 9 through a longitudinal displacement transmission assembly.
Referring to fig. 2-4, the seedling-lifting needle 14 assembly includes a plurality of seedling-lifting needles 14 and a fixing member 6a for fixing the seedling-lifting needles 14, the seedling-lifting needles 14 are arranged on the fixing member 6a in a straight line at equal intervals, when one seedling-lifting needle 14 faces one grid in the grid seedling tray, the other seedling-lifting needles 14 face the corresponding grid, one end of each seedling-lifting needle 14 is a fixed end for connecting with the fixing member 6a, the other end is a free end for lifting seedlings, the fixing member 6a is connected with the frame through a sliding structure, and the telescopic seedling-lifting linkage mechanism is connected with the fixing member 6 a.
Referring to fig. 2 and 3, the telescopic seedling-lifting linkage mechanism comprises a reciprocating driving frame 20, a first incomplete gear and a seedling-lifting gear shaft 20 for driving the first incomplete gear to rotate; wherein 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 drive frame 20 is connected to the fixing member 6 a.
Referring to fig. 2 and 3, the reciprocating driving frame 20 and the third incomplete gear have two groups, and the reciprocating driving frame 20 of each group of reciprocating driving frame 20 is arranged in one-to-one correspondence with the third incomplete gear of each group of third incomplete gear; two groups of third incomplete gears are arranged on the seedling-lifting gear shaft 20; the seedling ejecting assemblies are provided with two groups and are oppositely arranged on the frame, and the two groups of reciprocating driving frames 20 are respectively connected with the fixing pieces 6a 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-lifting gear shaft 20 rotates, each group of reciprocating driving frames 20 can do reverse reciprocating motion under the driving of the corresponding third incomplete gear, so that two oppositely arranged grid seedling trays can be simultaneously lifted under the condition of one-step driving, quick seedling sowing is realized, and the seedling sowing efficiency is improved.
Referring to fig. 2 and 3, there are two power transmission mechanisms, and the transmission gear 13 of each power transmission mechanism is arranged on the power transmission rod 11, and the transmission racks 12 of the two power transmission mechanisms are connected with the seedling lifting assembly. Two power transmission mechanisms are arranged, so that the two groups of seedling ejection assemblies can be driven better.
The seedling-lifting assembly and the telescopic seedling-lifting linkage mechanism of the embodiment can be referred to a seedling-lifting needle assembly and a telescopic driving mechanism in an improved light and simple array seedling-sowing machine according to the invention patent application with the application publication number of CN 109362295A.
Referring to fig. 2 and 3, the seedling-lifting transmission assembly is composed of a toothed chain transmission mechanism; the seedling-lifting power transmission mechanism further comprises a first intermediate rod 17, and the seedling-lifting transmission gear 16 is arranged on the first intermediate rod 17; the toothed 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-lifting 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 toothed chain transmission mechanism is adopted to realize the power transmission between the seedling-lifting power transmission mechanism and the telescopic seedling-lifting linkage mechanism, and the structure is simple; in addition, the toothed chain transmission mechanism is adopted, so that different distances between the seedling-lifting power transmission mechanism and the telescopic seedling-lifting linkage mechanism can be adapted to be adjusted, 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 and 3, the toothed chain transmission mechanism has two groups, the first transition gears 15 of the toothed chain transmission mechanism of the two groups are all arranged on the first intermediate lever 17, and the second transition gears are respectively arranged on two sides of the first intermediate lever 17. By arranging two groups of toothed chain transmission mechanisms, two seedling-ejecting gear shafts 20 can be driven to rotate simultaneously, a plurality of seedling-ejecting works are realized, and seedling-ejecting efficiency is improved.
Referring to fig. 2 and 3, the longitudinal displacement transmission mechanism further includes a second intermediate lever 18, and the longitudinal displacement transmission gear 6 is disposed 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 drive bevel gear 9. By arranging such a longitudinal displacement transmission assembly, the drive of the drive bevel gear 9 is realized, so that the longitudinal drive of the seedling lifting assembly is realized; the transmission of gears is adopted, so that the connection between the transition transmission shaft 8 and the drive bevel gear 9 is facilitated, and the structure is simple; in addition, through the cooperation of third transition gear 4 and fourth transition gear 5, can set up the vertical displacement link gear in tooth chain drive mechanism's below, stagger the position of both, make full use of space rationally to can avoid interfering.
Referring to fig. 2 and 3, the second intermediate lever 18 is disposed below the turntable 1 of the rice seedling planter, and the transitional drive shaft 8 is disposed below the second intermediate lever 18. Therefore, the longitudinal displacement linkage mechanism can be positioned below the turntable 1, is beneficial to being staggered with the telescopic seedling-lifting linkage mechanism and the seedling-lifting transmission assembly of the seedling-lifting assembly of the rice seedling-sowing machine in the vertical direction, avoids interference of the telescopic seedling-lifting linkage mechanism and the seedling-lifting transmission assembly, and can fully and reasonably utilize the space of the seedling-sowing machine.
Referring to fig. 2 and 3, a seedling tray downward-moving linkage mechanism is arranged at the bottom of the seedling ejection assembly, and comprises a blocking support assembly and a switching power assembly for pushing the blocking support assembly to perform horizontal and longitudinal switching movement; the blocking support assembly comprises two blocking rods 9a and a middle connecting rod 11a, the two blocking rods 9a are respectively arranged at two ends of the middle connecting rod 11a, the two blocking rods 9a are respectively positioned at corresponding positions of two vertical sides of the grid seedling tray 2a, comb-shaped baffle strips 1a are respectively arranged on the two vertical sides of the grid seedling tray 2a, and the two blocking rods 9a are respectively arranged in one-to-one correspondence with the comb-shaped baffle strips 1a at two sides; the switching power assembly comprises a pushing driving piece 7a and two seedling lifting limiting pieces 3a; wherein the pushing driving piece 7a is arranged below the fixing piece 6a of the seedling lifting assembly, the pushing driving piece 7a is in friction contact connection with the fixing piece 6a, the pushing driving piece 7a is connected with the conveying rack 12, and the pushing driving piece 7a is positioned between the two blocking rods 9 a; the two seedling-lifting limiting pieces 3a are respectively arranged at two sides of the fixing piece 6a and correspond to the height of the fixing piece 6 a; when the whole seedling lifting assembly needs to move for grid switching, the conveying rack 12 in the longitudinal displacement linkage mechanism drives the pushing driving piece 7a to longitudinally move, and simultaneously drives the whole seedling lifting assembly to move under the action of friction resistance; when the seedling ejecting assembly moves to the last grid on the grid seedling tray 2a and the grid seedling tray 2a needs to be driven to descend, the longitudinal displacement linkage mechanism drives the pushing driving piece 7a to continue to longitudinally move, at the moment, the seedling ejecting limiting piece 3a blocks the fixing piece 6a of the seedling ejecting assembly to enable the whole seedling ejecting assembly to be unable to continuously move, the pushing driving piece 7a overcomes friction force between the fixing piece 6a and independently longitudinally moves and pushes the blocking supporting assembly to move, finally, two blocking rods 9a are switched between the comb-shaped bars 1a of the grid seedling tray 2a, and the grid seedling tray 2a descends under the action of gravity.
The friction contact connection is that friction exists between the pushing driving piece 7a and the fixing piece 6a, and when the pushing driving piece 7a is driven to move by the longitudinal displacement linkage mechanism without the obstruction of external force, the pushing driving piece 7a and the seedling ejection assembly can form an integral and move simultaneously; however, under the obstruction of external force, namely when the fixing piece 6a is blocked by the seedling-lifting limiting piece 3a, the pushing moving piece slides relatively to the fixing piece 6a when the pushing driving piece 7a is driven by the longitudinal displacement linkage mechanism, the pushing driving piece 7a normally moves according to the driving direction of the longitudinal displacement linkage mechanism, and the fixing piece 6a is blocked by the seedling-lifting limiting piece 3a, so that the whole seedling-lifting assembly keeps unchanged in position, namely the position of the seedling-lifting needle 14 keeps unchanged.
Referring to fig. 3 and 4, the corresponding parts of the blocking rods 9a are respectively provided with a supporting table 4a, and the middle parts of the blocking rods 9a are supported on the supporting tables 4 a. Because the two blocking rods 9a need to bear the gravity of the whole grid seedling tray 2a, the bearing capacity of the blocking rods 9a can be improved and the deformability of the blocking rods 9a can be improved through the arrangement of the supporting table 4 a; meanwhile, the blocking rod 9a can rub with the blocking strips on the grid seedling tray 2a in the moving process, so that the stability of the blocking rod 9a in moving is better under the action of the supporting table 4a, and the grid seedling tray 2a can smoothly finish descending.
Referring to fig. 3 and 4, the two ends of the intermediate connecting rod 11a are respectively provided with a mounting bearing 8a, one ends of the two blocking rods 9a are correspondingly arranged on the mounting bearings 8a, and the other ends extend to one side of the grid seedling tray 2 a. When the blocking rod 9a moves, the free end of the blocking rod 9a can rub against the stop bar of the grid seedling tray 2a, and the blocking rod 9a can rotate when the blocking rod 9a and the stop bar scratch through the arrangement of the mounting bearing 8a, so that the friction between the blocking rod 9a and the stop bar on the grid seedling tray 2a is reduced, the movement of the blocking rod 9a is facilitated, and the lowering of the grid seedling tray 2a is facilitated.
Referring to fig. 3 and 4, a longitudinal guiding mechanism is disposed between the intermediate connecting rod 11a and the frame, and the longitudinal guiding mechanism includes a longitudinal rail fixedly disposed on the frame and a longitudinal slider, and the longitudinal slider is matched with the longitudinal rail and fixedly disposed at the bottom of the intermediate connecting rod 11 a. Through the setting of vertical guiding mechanism, be favorable to improving and block the stability and the precision of moving of supporting component.
Referring to fig. 3 and 4, the push driving member 7a is disposed below the seedling raising assembly 6 a. In this way, the seedling lifting device can be better matched with the seedling lifting assembly 6a, more space is reserved for the seedling lifting assembly 6a to perform seedling lifting operation, and the whole device is more compact.
Referring to fig. 3 and 4, the blocking support assemblies have two sets of blocking rods 9a of the blocking support assemblies, which are disposed in one-to-one correspondence and are disposed back to back. By arranging two groups of blocking support components, two oppositely arranged grid seedling trays 2a can be supported simultaneously, so that the rice seedling planter is suitable for being provided with a plurality of grid seedling trays 2 a.
Referring to fig. 3 and 4, a transverse guiding mechanism 5a is arranged between the pushing driving piece 7a and the seedling lifting assembly 6a, and the transverse guiding mechanism 5a comprises a transverse guide rail fixedly arranged on the pushing driving piece 7a and a transverse sliding block matched with the transverse guide rail; the transverse sliding block is provided with a damping gasket 12a, and the seedling lifting assembly 6a is arranged on the damping gasket 12 a. Through the arrangement of the transverse guide mechanism 5a, the seedling lifting assembly 6a can move transversely more stably when lifting seedlings, and meanwhile, the seedling lifting assembly 6a can be driven to move longitudinally when the driving piece 7a is pushed to move longitudinally; by arranging the damping gaskets 12a, the friction connection between the pushing driving piece 7a and the seedling lifting assembly 6a is realized, so that the pushing driving piece 7a and the seedling lifting assembly 6a can synchronously move and can relatively slide.
Referring to fig. 3 and 4, the push driver 7a includes a transition piece 21 and a support push piece; the number of the transition pieces 21 is two, and the two transition pieces 21 are respectively connected with the two conveying racks 12; the support pushing member comprises two support rods 23 which are oppositely arranged and a connecting rod 24, wherein 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. By arranging such a push driving member, it is convenient to connect with two transmission racks of two sets of power transmission mechanisms, and in addition, by arranging such a supporting member, it is convenient to connect with the seedling lifting assembly. The lateral guide mechanism 5a is provided on two support rods 23.
Referring to fig. 3 and 4, the seedling-lifting limiting member 3a is formed by a limiting rod extending transversely, and the limiting rod is perpendicular to the moving direction of the pushing driving member 7 a.
Referring to fig. 1, the grid seedling trays of the rice seedling sowing machine in this embodiment have four grid seedling trays, two of which are a group, and the seedling sowing mechanism is arranged in the middle of the two grid seedling trays of each group.
Referring to fig. 1 to 11, the working principle of the rice seedling sowing machine of the present embodiment is:
during operation, the rotary table 1 of the rice seedling planter is driven to rotate for one circle by a power mechanism such as a manual or motor, and in the process of rotating the rotary table 1 for one circle (the following description of the transverse and longitudinal directions are defined by the view angle of operators):
first, the first incomplete gear 3 and the second incomplete gear 7 arranged on the main power shaft 2 rotate, at this time, the gear teeth on the first incomplete gear 3 are meshed with the seedling-lifting transmission gear 16 and drive the seedling-lifting transmission gear 16 to rotate, and the seedling-lifting gear shaft 20 is driven by the toothed chain transmission mechanism to rotate, the reciprocating driving frame 20 arranged on the seedling-lifting gear shaft 20 completes the transverse stretching and retracting action, so that seedling-lifting work (i.e. seedling sowing) is completed, but in the process, the smooth part of the second incomplete gear 7 corresponds to the gear teeth of the longitudinal displacement transmission gear 6 (i.e. the second incomplete gear 7 is separated from the longitudinal displacement transmission gear 6), and the longitudinal displacement linkage mechanism pauses the movement. When the seedling lifting work is completed and the reciprocating moving frame is reset, the first incomplete gear 3 is separated from the seedling lifting transmission gear 16, and the seedling lifting gear shaft 20 stops moving; 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 drive of the drive bevel gear 9 is realized, one of the driven bevel gears 10 is driven to rotate, and under the action of the power transmission rod 11, the transmission gear 13 is driven to rotate, so that the transmission rack 12 matched with the transmission gear 13 longitudinally moves forwards (or backwards), and under the action of the pushing driving piece 7a, the whole seedling jacking assembly longitudinally moves one frame to finish the longitudinal stepping movement of the seedling jacking assembly, and the seedling jacking 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 ejection transmission gear 16, seedling ejection is continued for the next time, 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 pauses movement; thus, the seedling-lifting work and the stepping longitudinal movement of the seedling-lifting assembly are continuously carried out, and the continuous seedling-lifting of the rice is realized.
When the seedling ejection assembly moves to the position of the last grid of the grid seedling tray 2a and seedling ejection is completed, gear teeth of the first incomplete gear 3 are separated from the seedling ejection transmission gear 16, gear teeth of the second incomplete gear 7 are meshed with the longitudinal displacement transmission gear 6, the driving piece 7a is driven to continue to move longitudinally under the action of the longitudinal displacement transmission mechanism, at the moment, the seedling ejection limiting piece 3a blocks the fixing piece 6a, so that the seedling ejection assembly cannot continue to move forwards, the position of the seedling ejection assembly is limited, the driving piece 7a continues to move forwards after overcoming friction force with the fixing piece 6a, so that the end part of the driving piece 7a pushes the corresponding blocking rod 9a, the blocking rod 9a moves outwards, the other blocking rod 9a simultaneously moves inwards under the action of the intermediate connecting rod 11a, and finally, the grid seedling tray 2a descends one step after the blocking rod 9a blocks the fixing piece 6 a; after the grid seedling tray 2a descends by one step, the grid of the upper layer corresponds to the seedling ejecting needle 14 of the seedling tray assembly, and normal seedling ejecting work is continued.
When the turntable 1 is continuously rotated to carry out seedling lifting operation, gear teeth of the driving bevel gear 9 are meshed with the other driven bevel gear 10, and the longitudinal moving direction of the seedling lifting assembly is opposite; so as to continuously perform reciprocating longitudinal movement and seedling lifting.
The foregoing is illustrative of the present invention, and is not to be construed as limiting thereof, but rather as various changes, modifications, substitutions, combinations, and simplifications which may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. A rice seedling sowing machine comprises a main power mechanism, a travelling mechanism, a frame arranged on the travelling mechanism, and a seedling tray assembly and a seedling sowing assembly which are arranged on the frame; wherein, the seedling tray component comprises a grid seedling tray which is arranged on the frame and is vertical to the horizontal plane; the seedling sowing assembly comprises a seedling ejection assembly, a telescopic seedling ejection linkage mechanism for driving the seedling ejection assembly to perform telescopic seedling ejection tasks, and a longitudinal displacement linkage mechanism for driving the seedling ejection assembly to perform longitudinal horizontal switching movement between grids of the grid seedling tray; it is characterized in that the method comprises the steps of,
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 at two sides of the driving bevel gear and are in matched connection with the driving bevel gear, the driving bevel gear is an incomplete gear, when the driving bevel gear is meshed with the former driven bevel gear, the latter driven bevel gear is separated from the driving bevel gear, and when the driving bevel gear is separated from the former driven bevel gear, the latter driven bevel gear is meshed with 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; the power output piece of the total power mechanism is connected with the drive bevel gear;
the bottom of the seedling ejection assembly is provided with a seedling tray downward-moving linkage mechanism, and the seedling tray downward-moving linkage mechanism comprises a blocking support assembly and a switching power assembly for pushing the blocking support assembly to perform longitudinal horizontal switching movement; the blocking support assembly comprises two blocking rods and an intermediate connecting rod, the two blocking rods are respectively arranged at two ends of the intermediate connecting rod, the two blocking rods are respectively positioned at corresponding positions of two vertical sides of the grid seedling tray, comb-shaped retaining strips are respectively arranged on the two vertical sides of the grid seedling tray, and the two blocking rods are respectively arranged in one-to-one correspondence with the comb-shaped retaining strips at two sides; the switching power assembly comprises a pushing driving piece and two seedling ejection limiting pieces; the seedling ejection assembly is arranged on the pushing driving piece, the pushing driving piece is in friction contact connection with the seedling ejection assembly, the pushing driving piece is connected with the conveying rack, and the pushing driving piece is positioned between the two blocking rods; the two seedling lifting limiting pieces are respectively arranged at two sides of the seedling lifting assembly and correspond to the heights of the seedling lifting assembly; when the seedling lifting assembly needs to move to perform grid switching, the longitudinal displacement linkage mechanism drives the pushing driving piece to longitudinally move, and simultaneously drives the seedling lifting assembly to move under the action of friction resistance; when the seedling ejecting assembly moves to the last grid on the grid seedling tray and the grid seedling tray needs to be driven to descend, the longitudinal displacement linkage mechanism drives the pushing driving piece to continuously move longitudinally, at the moment, the seedling ejecting limiting piece blocks the seedling ejecting assembly to stop moving, the pushing driving piece overcomes the friction force between the seedling ejecting assembly and the seedling ejecting assembly to independently move longitudinally and pushes the blocking supporting assembly to move, and finally, two blocking rods are switched between comb-shaped bars of the grid seedling tray, and the grid seedling tray descends under the action of gravity;
the corresponding positions of the blocking rods are respectively provided with a supporting table, and the middle parts of the blocking rods are supported on the supporting tables;
the pushing driving piece is arranged below the seedling ejecting assembly.
2. The rice seedling sowing machine of claim 1, wherein the total power mechanism comprises a turntable, a main power shaft, a seedling ejection power transmission mechanism and a longitudinal displacement transmission mechanism, and the main power shaft is connected with the turntable; the seedling lifting power transmission mechanism comprises a first incomplete gear and a seedling lifting transmission gear, wherein the seedling lifting transmission gear is meshed with the first incomplete gear, and the seedling lifting transmission gear is connected with the telescopic seedling lifting linkage mechanism through a seedling lifting 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 in meshed matching arrangement with the second incomplete gear, and the longitudinal displacement transmission gear is connected with the driving bevel gear through a longitudinal displacement transmission assembly.
3. The rice seedling sowing machine of claim 2, wherein the seedling-pushing transmission assembly is composed of a toothed chain transmission mechanism; the seedling-lifting power transmission mechanism further comprises a first intermediate rod, and the seedling-lifting transmission gear is arranged on the first intermediate rod; the toothed chain transmission mechanism comprises a first transition gear, a second transition gear and a transition chain, wherein the first transition gear is arranged on the first intermediate rod, the second transition gear is arranged on a direct power source shaft of the telescopic seedling-lifting linkage mechanism, and the transition chain is arranged on the first transition gear and the second transition gear in a surrounding mode.
4. A rice seedling planting machine according to claim 3, wherein the longitudinal displacement transmission mechanism further comprises a second intermediate lever, the longitudinal displacement transmission gear being provided on the second intermediate lever; 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 connected with the third transition gear in a meshed mode, and a transition transmission shaft is arranged between the fourth transition gear and the drive bevel gear.
5. The rice seedling sowing machine of claim 4, wherein the seedling-pushing needle assembly comprises a plurality of seedling-pushing needles and a fixing piece for fixing the seedling-pushing needles, the seedling-pushing needles are arranged on the fixing piece in a straight line at equal intervals, when one seedling-pushing needle faces against one grid in the grid seedling tray, the other seedling-pushing needles face against the corresponding grid, one end of each seedling-pushing needle is a fixed end for being connected with the fixing piece, the other end of each seedling-pushing needle is a free end for pushing seedlings, the fixing piece is connected with the frame through a sliding structure, and the telescopic seedling-pushing linkage mechanism is connected with the fixing piece.
6. The rice seedling planting machine of claim 5, wherein the telescoping seedling-lifting linkage mechanism comprises a reciprocating drive frame, a third incomplete gear, and a seedling-lifting gear shaft for driving the third incomplete gear to rotate, the seedling-lifting gear shaft constituting the direct power source shaft; 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 driving frame is connected with the fixing piece, and the seedling ejection gear shaft is connected with the seedling ejection transmission gear.
7. The rice seedling sowing machine according to claim 1, wherein the two ends of the intermediate connecting rod are respectively provided with a mounting bearing, one ends of the two blocking rods are correspondingly arranged on the mounting bearings, and the other ends extend to one side of the grid seedling tray.
8. The rice seedling sowing machine according to claim 1, wherein a transverse guiding mechanism is arranged between the pushing driving piece and the seedling ejecting assembly, and comprises a transverse guide rail fixedly arranged on the pushing driving piece and a transverse sliding block matched with the transverse guide rail; the transverse sliding block is provided with a damping gasket, and the seedling ejection assembly is arranged on the damping gasket.
9. The rice seedling planting machine of claim 1, wherein the seedling-pushing limiting member is formed by a limiting rod extending transversely, and the limiting rod is perpendicular to the moving direction of the pushing driving member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911021387.8A CN110651574B (en) | 2019-10-24 | 2019-10-24 | Rice seedling sowing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911021387.8A CN110651574B (en) | 2019-10-24 | 2019-10-24 | Rice seedling sowing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110651574A CN110651574A (en) | 2020-01-07 |
| CN110651574B true CN110651574B (en) | 2023-06-27 |
Family
ID=69042196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911021387.8A Active CN110651574B (en) | 2019-10-24 | 2019-10-24 | Rice seedling sowing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110651574B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113661815B (en) * | 2021-08-02 | 2022-11-11 | 金华市农业科学研究院(浙江省农业机械研究院) | Period switching type seedling feeding part of hybrid rice transplanter |
| CN113678610B (en) * | 2021-08-16 | 2022-07-05 | 华南农业大学 | Array type seedling sowing machine capable of increasing operation stability and reliability |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433828A (en) * | 2013-08-09 | 2013-12-11 | 山东温岭精锻科技有限公司 | Automatic omnibearing scale cinder removing machine for high-temperature billet |
| CN109102619A (en) * | 2016-06-06 | 2018-12-28 | 上海理工大学 | packing device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07194208A (en) * | 1993-12-30 | 1995-08-01 | Yanmar Agricult Equip Co Ltd | Construction of working table for seedling transplanter |
| CN201766836U (en) * | 2010-06-21 | 2011-03-23 | 冯国禄 | Seedling tray driving mechanism of seedling planting machine |
| CN203095123U (en) * | 2013-01-15 | 2013-07-31 | 广州华臻机械设备有限公司 | Feeding mechanism of artificial quartz stone |
| CN207657205U (en) * | 2017-12-29 | 2018-07-27 | 东莞市申鸿实业有限公司 | A kind of frame cutting part automatic splicing device |
| CN108526508A (en) * | 2018-06-23 | 2018-09-14 | 沈洁 | A kind of proximate matter feeding perforating mechanism |
| CN109287270B (en) * | 2018-09-21 | 2020-08-14 | 徐州盛斗士生物科技有限公司 | Cactus fruit picking vehicle |
| CN109362295B (en) * | 2018-11-29 | 2023-06-27 | 华南农业大学 | Improved light and simple array seedling planter |
| CN110178535B (en) * | 2019-06-19 | 2020-12-08 | 徐州云创物业服务有限公司 | Impactedly expand brokenly from explosion-proof harvesting bear device of upset seed coat separation damping of impatiens balsamina |
| CN110337872A (en) * | 2019-07-05 | 2019-10-18 | 肥东县爱雯家庭农场 | A kind of crops transplanter |
| CN110301234B (en) * | 2019-08-09 | 2021-12-21 | 真木农业设备（安徽）有限公司 | Straw returning device |
| CN211240789U (en) * | 2019-10-24 | 2020-08-14 | 华南农业大学 | Improved generation rice seedling planting machine |
-
2019
- 2019-10-24 CN CN201911021387.8A patent/CN110651574B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433828A (en) * | 2013-08-09 | 2013-12-11 | 山东温岭精锻科技有限公司 | Automatic omnibearing scale cinder removing machine for high-temperature billet |
| CN109102619A (en) * | 2016-06-06 | 2018-12-28 | 上海理工大学 | packing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110651574A (en) | 2020-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109362295B (en) | Improved light and simple array seedling planter | |
| CN109601079B (en) | Unidirectional-drive bidirectional synchronous telescopic linkage mechanism | |
| CN110651574B (en) | Rice seedling sowing machine | |
| CN109463082B (en) | Linkage control mechanism capable of traversing vertical plane | |
| CN103843506B (en) | Pot seedling transplanter seedling feeding device | |
| CN202406515U (en) | Pot tray collecting device | |
| CN209358986U (en) | A kind of seedling disk of rice planter moves down control mechanism | |
| CN211240789U (en) | Improved generation rice seedling planting machine | |
| CN209358989U (en) | A kind of bi-directional synchronization of rice planter discloses rice seedling distribution mechanism | |
| CN109479463B (en) | Three-dimensional three-linkage cycle stepping mechanism driven in one way | |
| CN211128954U (en) | Seedling sowing driving device | |
| CN209358988U (en) | A kind of linkage mechanism of rice planter | |
| CN110663322B (en) | Seedling sowing linkage device of rice seedling sowing machine | |
| CN209358987U (en) | A kind of modified array rice planter | |
| CN211128953U (en) | Improved seedling tray displacement linkage mechanism | |
| CN108990490B (en) | Sweet potato horizontal transplanting seedling conveying device | |
| CN211240790U (en) | Reciprocating displacement driving mechanism of rice seedling planter | |
| CN110848351A (en) | Unidirectional rotation accurate drive reciprocating displacement's link gear | |
| CN113396667B (en) | Soil taking and hole forming device based on reverse rotation and hole forming method thereof | |
| CN115669330A (en) | Guide rail driving crank type zero-speed transplanting mechanism | |
| CN110651575B (en) | Seedling tray driving device of rice seedling planter | |
| CN212487446U (en) | Vegetable seedling growing rack convenient for lighting | |
| CN209256444U (en) | A kind of convenient blanking system and production equipment automatically | |
| CN114158809A (en) | Automatic velvet patting machine capable of being adjusted in lifting mode | |
| CN113678610B (en) | Array type seedling sowing machine capable of increasing operation stability and reliability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |