CN115462258A - Automatic device of putting in rice seedling dish field - Google Patents

Automatic device of putting in rice seedling dish field Download PDF

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Publication number
CN115462258A
CN115462258A CN202211069318.6A CN202211069318A CN115462258A CN 115462258 A CN115462258 A CN 115462258A CN 202211069318 A CN202211069318 A CN 202211069318A CN 115462258 A CN115462258 A CN 115462258A
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CN
China
Prior art keywords
tray
frame
laying
disc
driving
Prior art date
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Granted
Application number
CN202211069318.6A
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Chinese (zh)
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CN115462258B (en
Inventor
马旭
刘伟文
刘赛赛
赵旭
王宇唯
王曦成
王承恩
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Guangdong Provincial Laboratory Of Lingnan Modern Agricultural Science And Technology
South China Agricultural University
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Guangdong Provincial Laboratory Of Lingnan Modern Agricultural Science And Technology
South China Agricultural University
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Application filed by Guangdong Provincial Laboratory Of Lingnan Modern Agricultural Science And Technology, South China Agricultural University filed Critical Guangdong Provincial Laboratory Of Lingnan Modern Agricultural Science And Technology
Priority to CN202211069318.6A priority Critical patent/CN115462258B/en
Publication of CN115462258A publication Critical patent/CN115462258A/en
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Publication of CN115462258B publication Critical patent/CN115462258B/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/08Devices for filling-up flower-pots or pots for seedlings; Devices for setting plants or seeds in pots
    • A01G9/088Handling or transferring pots
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30Belts or like endless load-carriers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G21/00Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/10Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof
    • B65G21/14Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof to allow adjustment of length or configuration of load-carrier or traction element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/02Devices for feeding articles or materials to conveyors
    • B65G47/04Devices for feeding articles or materials to conveyors for feeding articles
    • B65G47/12Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74Feeding, transfer, or discharging devices of particular kinds or types

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)

Abstract

The invention discloses a field automatic laying device for rice seedling trays, which comprises a laying disc device and an automatic seedling tray feeding device, wherein the laying disc device comprises a laying disc frame, a laying disc mechanism and a travelling mechanism, the laying disc mechanism comprises support pieces, a lifting mechanism and a limiting mechanism, the two groups of support pieces are respectively and symmetrically arranged in the laying disc frame, each group of support pieces comprises a plurality of vertically arranged clamping strips, and the clamping strips in the two groups of support pieces are in one-to-one correspondence; the lifting mechanism comprises a chain and a lifting driving mechanism; the chain is vertically wound, and the clamping strip is installed on the chain; the two sides of the seedling tray entering the tray laying device are respectively supported by two opposite clamping strips in the two groups of supporting pieces; when the seedling tray reaches the tray outlet of the tray laying frame, the clamping strips on the two sides do reverse circular motion and are separated from the seedling tray. The automatic rice seedling tray field laying device is simple in structure, good in stability and capable of automatically and continuously laying trays.

Description

Automatic device of putting in rice seedling dish field
Technical Field
The invention relates to agricultural mechanical automation equipment, in particular to a field automatic laying device for rice seedling trays.
Background
The rice field seedling raising and factory seedling raising are important components in the rice agricultural mechanized process, and a rice seedling tray seedling raising and seeding production line integrating multiple links of seedling tray feeding, substrate paving, seeding, surface soil covering, water spraying and tray taking and stacking is realized at present. But the mechanization degree of the seedling plate paving ring section used as a rice seedling plate seedling raising and sowing production line is low, the seedling plates are placed one by one mainly by manpower, and the seedling plates are placed in a mechanical-assisted semi-automatic mode, so that the seedling plate paving device becomes a link with the maximum labor intensity and the minimum mechanization degree in rice seedling raising; the quality of the tray directly influences the later growth of the seedlings, the operation quality of the later links such as fertilization and pesticide application and the like, and the tray laying efficiency has an important influence on the optimal growth period of the seedlings. The development of the automatic rice tray laying machine has important significance for mechanized production of rice, reduction of labor intensity and improvement of labor productivity.
Most of the existing tray paving devices are semi-automatic tray paving which need manual tray supply, and continuous tray paving cannot be achieved. Some tray paving devices with higher automation degree also need manual refilling after realizing limited seedling tray placement, and cannot continuously work. For example, the invention patent application with the patent application number of 202010145091.3 discloses a tray placing device for field tray laying operation, which is characterized in that although the ordered laying of the whole stack of seedling trays is completed by a cam pair, the trays are still manually supplied after the whole stack of seedling trays are laid, the trays cannot be continuously laid, the labor saving is only realized in a limited way, and the production rate is still severely limited. In addition, a small amount of full-automatic tray paving machines have the defects of overlarge volume, poor stability and complex structure.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the automatic rice seedling tray field laying device which is simple in structure, good in stability and capable of automatically and continuously laying trays.
The technical scheme for solving the problems in the prior art is as follows:
an automatic rice seedling tray field laying device comprises a seedling tray laying device and an automatic seedling tray feeding device, wherein,
the seedling tray automatic feeding device is used for automatically conveying seedling trays into the tray paving device;
the disc paving device comprises a disc paving frame, a disc paving mechanism arranged in the disc paving frame and a travelling mechanism for driving the disc paving frame to move, wherein the disc paving mechanism comprises two groups of supporting pieces and a lifting mechanism for driving the supporting pieces to circularly move in the vertical direction, the two groups of supporting pieces are respectively and symmetrically arranged in the disc paving frame, each group of supporting pieces comprises a plurality of vertically arranged clamping strips, and the clamping strips in the two groups of supporting pieces are in one-to-one correspondence; the lifting mechanism is used for driving a plurality of clamping strips in the two groups of supporting pieces to synchronously and circularly move in the vertical direction; the lifting mechanism comprises a chain and a lifting driving mechanism for driving the chain to move, wherein the chain vertically surrounds, and the clamping strip is installed on the chain; the two sides of the seedling tray entering the tray laying device are respectively supported by two opposite clamping strips in two groups of supporting pieces; when the seedling tray reaches the tray outlet at the lower end of the seedling tray frame, the clamping strips on the two sides do reverse circular motion to be separated from the seedling tray.
Preferably, the number of the chains is two, the two groups of the chains are arranged in bilateral symmetry, each group of the chains is two, and the two chains are arranged in front of and behind each other; two ends of the clamping strip are respectively arranged on the two chains in the same group; correspondingly, the lifting driving mechanism comprises a driving chain wheel, driven chain wheels and a lifting power mechanism for driving the driving chain wheels to rotate, wherein the driving chain wheels and the driven chain wheels are four groups and correspond to four chains; the driving chain wheel is arranged above the paving disc frame, the driven chain wheel is arranged below the paving disc frame, and the chain is wound on the driving chain wheel and the driven chain wheel; the two driving chain wheels in the same group and the two driven chain wheels in the same group are connected through a driving transmission shaft and a driven transmission shaft respectively; the lifting power mechanism is used for driving the two groups of driving transmission shafts to rotate reversely.
Preferably, the pallet laying mechanism further comprises a guide mechanism for preventing the chains from twisting in the movement process, wherein the guide mechanism comprises two guide rails arranged on the left side and the right side of the pallet laying mechanism, and the two guide rails on each side correspond to the two chains on the same side of the pallet laying mechanism; the guide rail is arranged in the paving tray frame, a guide groove extending vertically is arranged in the guide rail, and vertical sections, close to the middle of the paving tray frame, of the chains on two sides are located in the guide groove.
Preferably, the tray laying mechanism further comprises a limiting mechanism for limiting the seedling trays which do lifting motion, wherein the limiting mechanism comprises two sets of tray laying guide plates and two tray laying baffle plates, the two tray laying guide plates are respectively positioned at the left side and the right side of the tray laying frame, each set of tray laying guide plates is two, and the two tray laying guide plates are arranged at the front side and the rear side of the tray laying frame; the two tray placing guide plates on the left side and the right side of the tray laying frame correspond to each other one by one; the tray placing guide plate is arranged on the tray laying frame and extends inwards from top to bottom in an inclined mode; the two tray placing baffles are respectively positioned in the middle of the front side and the rear side of the tray laying frame and are symmetrically arranged; the tray placing baffle is arranged on the tray laying frame and extends inwards from top to bottom in an inclined mode; wherein, the distance between the bottommost parts of the two opposite tray placing guide plates is equal to the width of the seedling tray, and the distance between the bottommost parts of the two opposite tray placing baffle plates is equal to the length of the seedling tray; the tray placing guide plate and the tray placing baffle plate form a rectangular cone structure from top to bottom.
Preferably, the travelling mechanism comprises two travelling wheel sets and a travelling driving mechanism for driving the travelling wheel sets to rotate, wherein the two travelling wheel sets are located on the front side and the rear side of the paving plate frame, each travelling wheel set comprises two travelling wheels and a transmission shaft for connecting the two travelling wheels, the transmission shaft is mounted on the paving plate frame, and the left end and the right end of the transmission shaft respectively horizontally extend out of the paving plate frame and are connected with the two travelling wheels; the walking driving mechanism comprises a walking motor, the walking motor is arranged on the paving disc frame, and a main shaft of the walking motor is connected with a transmission shaft in one group of walking wheel sets through a synchronous belt transmission mechanism or a gear transmission mechanism; the travelling wheels are matched with a conveying guide rail arranged on the rack and used for realizing the movement of the paving disc frame on the conveying guide rail.
Preferably, the pallet paving mechanism further comprises two groups of tensioning mechanisms for adjusting the tensioning degrees of the two groups of chains, the two groups of tensioning mechanisms are respectively used for adjusting the tensioning degrees of the two groups of chains, each group of tensioning mechanism comprises two tensioning sprockets and a connecting rod for connecting the two tensioning sprockets, the tensioning sprockets are rotatably connected to the connecting rod through bearings, and the two tensioning sprockets are respectively meshed with the inner sides, far away from the pallet paving frame, of the two chains on the front side and the rear side in the same group of chains; the paving rack is provided with an adjusting groove at a position corresponding to the connecting rod, and the extending direction of the adjusting groove is perpendicular to the surrounding direction of the chain.
Preferably, the length of the clamping strip is shorter than that of the seedling tray, the clamping strip comprises a steel frame and a steel wheel, and the steel frame consists of two steel bars; the steel frame is characterized in that the steel frame is provided with a plurality of steel wheels, the plurality of steel wheels are arranged along the length direction of the steel frame, and two ends of each steel wheel are respectively rotatably connected/fixed on the two steel bars; one side of the steel frame is positioned in a space between two guide rails in the same group, and the other side of the steel frame extends inwards to form the space.
Preferably, the seedling tray automatic feeding device comprises a conveying mechanism, a supporting mechanism and a flange mechanism, wherein the conveying mechanism is arranged on the rack and used for conveying the seedling tray, the supporting mechanism is used for supporting the conveying mechanism, and the flange mechanism is used for preventing the seedling tray from deviating; the paving device is movably arranged in the rack and moves along the length direction of the rack; wherein the content of the first and second substances,
the supporting mechanism comprises two supporting guide rails symmetrically arranged on the rack, a moving shaft assembly and an outer ring supporting assembly, wherein the moving shaft assembly is arranged on the supporting guide rails and comprises a plurality of moving shafts which can be expanded or contracted on the supporting guide rails;
the conveying mechanism comprises two circular belts, driving belt pulleys arranged on two sides of the paving disc frame and pulley assemblies symmetrically arranged at two ends of the rack; the pulley assembly comprises a steering wheel set and a tensioning wheel set; the starting ends of the two circular belts are respectively arranged on a driving belt wheel on one side of the paving disc frame, the middle section of each circular belt extends along the length direction of the rack after coming out of the driving belt wheel on the side, and is subjected to multiple steering through a pulley assembly and then is arranged on the outer side of the rack, the circular belts are conveyed to the other end of the rack under the guidance of the outer ring supporting assembly, and then are wound back to the driving belt wheel on the other end of the paving disc frame through the pulley assembly on the other end of the rack again, so that the circular belts form a closed loop structure capable of avoiding the moving track of the paving disc device in space; the two circular belts form a conveying belt plane for conveying the seedling trays on the front side and the rear side of the seedling tray laying frame; the paving device is also provided with a circular belt driving mechanism for driving the circular belt to move.
Preferably, the flange mechanism comprises a flange fixing frame, flange rotors and two flange belts, wherein the flange rotors are arranged on the left inner side and the right inner side of the paving disc frame, and the number of the flange rotors on each side is four; the two flange belts are symmetrically arranged on the flange fixing frame and extend along the length direction of the rack; the middle section of each flange belt is bent in a trapezoidal shape to go round under the action of four flange rotors on the same side of the paving disc frame; the flange fixing frames are symmetrically arranged at two ends of the rack, and are provided with slotted holes for penetrating through the flange belts; and two ends of the flange belt are arranged on the slotted hole of the flange fixing frame.
Preferably, the steering wheel group comprises two first steering wheels arranged above the frame, two second steering wheels positioned below the two first steering wheels, and two roll shafts used for respectively connecting the two first steering wheels; the tensioning wheel set comprises a tensioning wheel and wheel frames fixed at four corners of the outer side of the frame, and the wheel frames are provided with slotted holes; the middle section of the circular belt extends along the length direction of the rack after coming out of the driving belt wheel, turns 90 degrees downwards after reaching the first steering wheel, turns 90 degrees outwards after reaching the second steering wheel, and continues to turn 90 degrees outwards after reaching the tension wheel, so that the middle section of the circular belt is parallel to the length direction of the rack; the middle section of the circular belt extends to the tension wheel on the other side of the rack along the length direction of the rack and sequentially surrounds the second steering wheel, the first steering wheel and the driving belt wheel on the side to form a closed-loop structure.
Compared with the prior art, the invention has the following beneficial effects:
(1) The seedling tray placing device drives the seedling tray to lift in a mode of combining chain transmission and clamping strips, due to the circulation characteristic of the chain, after the seedling tray placing is completed by the clamping strips, the clamping strips can return to the tray receiving station along with the chain again to achieve continuous tray receiving, and after the seedling tray is fed into the seedling tray placing device one by one continuously by the automatic seedling tray feeding device, the seedling tray can be continuously conveyed to the tray outlet at the lower end of the seedling tray placing device by the seedling tray placing device; when the seedling tray device moves to the tray placement point, the chains on the two sides rotate circularly, so that the seedling tray at the lowest end continues to move downwards, and when the clamping strips enter the arc sections from the vertical sections of the chains, the clamping strips on the two sides are separated from the two sides of the seedling tray, so that the seedling tray falls from the tray outlet at the lower end of the tray placement device, the automatic placement of the seedling tray is realized, and meanwhile, only one seedling tray is accurately placed to the tray placement point every time.
(2) The travelling mechanism of the disc paving device can drive the disc paving device to move, so that the disc paving device is driven to reach each disc paving point to carry out disc paving work, and the automation degree is higher.
(3) The automatic rice seedling tray field laying device is simple in structure and good in stability, automatic continuous tray laying can be achieved, manufacturing cost is reduced, labor cost is greatly saved, and the labor degree of workers is reduced.
Drawings
FIG. 1 is a schematic perspective view of an automatic rice seedling tray field laying device of the present invention.
Fig. 2 is a perspective view of the conveying mechanism, the supporting mechanism, and the rib mechanism when the paving apparatus of the present invention is positioned in the middle of the frame.
Fig. 3 is a perspective view of the conveying mechanism and the supporting mechanism when the paving apparatus of the present invention is located at an end point (start point position or end point position) of the frame.
FIG. 4 is a perspective view of the outer ring support assembly,
Fig. 5 is a schematic perspective view illustrating a clip-type movable shaft storage structure according to the present invention.
Fig. 6 is a half sectional view of the moving shaft in the present invention.
Fig. 7 is a perspective view of the circular belt of the laying device of the present invention at the end point (start point position or end point position) of the frame.
Fig. 8 is a top view of the retaining mechanism of the laying device of the present invention positioned in the middle of the frame.
Fig. 9 is a schematic view of the installation of the laying device of the present invention.
Fig. 10 and 11 are schematic perspective views of the laying device at two different viewing angles.
Fig. 12 is a top view of the laying device.
Fig. 13 is a schematic structural view of the card strip.
Fig. 14 is a schematic perspective view of the guide mechanism and the limiting mechanism.
Fig. 15 is a schematic structural view of the laying mechanism.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Referring to fig. 1-15, the automatic rice seedling tray field laying device of the present invention comprises a tray laying device 5 and an automatic rice seedling tray feeding device, wherein the tray laying device 5 can automatically lay the rice seedling trays 90 on each tray laying point, and the automatic rice seedling tray feeding device can be used to automatically convey the rice seedling trays 90 in the rice seedling tray storing/stacking device to the tray laying device 5; when the seedling tray device 5 reaches each seedling tray point, although the distance between the seedling tray device 5 and the seedling tray storing/stacking device is changed, the automatic seedling tray feeding device can still realize the conveying of the seedling trays 90 into the seedling tray device 5 so as to realize the automatic laying of the seedling trays 90.
The automatic seedling tray feeding device and the tray laying device 5 are described one by one as follows:
1. feeding device
Referring to fig. 1-15, the automatic seedling tray feeding device comprises a frame 4, a conveying mechanism 1 arranged on the frame 4 and used for conveying seedling trays 90, a supporting mechanism 3 for supporting the conveying mechanism 1, and a flange mechanism 2 for preventing the seedling trays 90 from deviating; wherein the paving device 5 is movably arranged in the frame 4, so that the paving device 5 can move along the length direction of the frame 4.
Referring to fig. 1-15, the conveying mechanism 1 includes two circular belts 11, driving pulleys 12 arranged on the front and rear sides of the paving device 5, and pulley assemblies symmetrically arranged at two ends of the frame 4; wherein, the round belt 11 is provided with a steel wire inside for weakening the elasticity of the round belt 11, two ends of the two round belts 11 are respectively arranged on the driving belt wheel 12 at two sides of the pallet frame 51 of the pallet device 5, when in use, the two ends of the round belt 11 move synchronously with the pallet device 5, and the middle section of the round belt 11 extends along the length direction of the rack 4 after coming out of the driving belt wheel 12; wherein, the two circular belts 11 are parallel to each other and are both parallel to the length direction of the frame 4; the two circular belts 11 form a section of conveying belt plane on the frame 4; the lower end of the circular belt 11 is provided with a plurality of moving shafts 22 which are arranged in parallel at equal intervals, and the moving shafts 22 are used for supporting the circular belt 11 of the long-distance seedling conveying disc 90.
Referring to fig. 1-15, the sheave assembly includes a steering sheave assembly 14 and a tensioning sheave assembly; the middle section of the circular belt 11 is turned for multiple times through the winding pulley assembly and then is placed on the outer side of the rack 4, is conveyed to the other end of the rack 4 under the action of the outer ring supporting assembly, and is wound back to the conveying belt plane at the other end of the rack 4 through the pulley assembly again, so that the two groups of circular belts 11 are wound around the paving device 5 in three-dimensional space.
Referring to fig. 1 to 15, the steering wheel group 14 includes two first steering wheels 14-1 respectively disposed above both sides of the frame 4, two second steering wheels 14-2 located below the first steering wheels 14-1, and roll shafts 15 respectively connecting the two first steering wheels 14-1; the tensioning wheel set comprises a tensioning wheel 16 and wheel carriers 17 fixed at four corners outside the frame 4, the wheel carriers 17 are provided with slot holes, and the tensioning wheel 16 can move and adjust along the wheel carriers 17 to the X axis; the middle section of the circular belt 11 extends from the driving pulley 12 on one side of the paving disc frame 51 of the paving disc device 5 along the length direction of the machine frame 4, turns 90 degrees downwards after reaching the first steering wheel 14-1 on the side, turns 90 degrees outwards after reaching the second steering wheel 14-2, continues to turn 90 degrees outwards after reaching the tension wheel 16, so that the circular belt 11 is parallel to the length direction of the machine frame 4, extends to the tension wheel 16 on the other side of the machine frame 4, and sequentially rounds the second steering wheel 14-2 and the first steering wheel 14-1 on the side and then surrounds the driving pulley 12 on the other side of the paving disc device 5, so that the circular belt 11 forms a closed loop in space; the roll shafts 15 are arranged at two ends of the rack 4, and the first steering wheel 14-1 is arranged on the roll shafts 15, rotates along the X axis and is used for rotating the circular belt 11 by 90 degrees and then is parallel to the Z axis; the second steering wheel 14-2 is mounted on a cross beam of the frame 4 and rotates along the Y axis, and is used for rotating the circular belt by 90 degrees and then is parallel to the X axis; the tensioning wheel 16 rotates along the Z axis and is used for rotating the circular belt by 90 degrees and then is parallel to the Y axis; the tension pulley 16 moves along the slot of the wheel frame 17 to the X axis to adjust the tension of the circular belt 11.
Through the arrangement, the circular belt 11 rotates downwards 90 degrees along the first pair of steering wheels 14-1 to leave a seedling tray inlet space, the second pair of steering wheels 14-2 symmetrically rotate the two parallel circular belts 11 90 degrees towards the outer side of the rack 4 to wind out of the inner side of the rack 4, the circular belt 11 rotates 90 degrees towards the outer side of the rack 4 along the tensioning wheel 16 again and then is parallel to the length direction of the rack 4, then the circular belt 11 winds to the other side of the rack 4 after passing through the four outer ring supporting assemblies, and the circular belt 11 on the other side of the rack 4 winds back to the plane of the conveying belt again after three times of steering of the symmetrical pulley assemblies (namely finally winds on the driving pulley 12 on the other side of the laying disc device 5), so that the laying disc device 5 moving back and forth is avoided, and the dynamic adjustment of the length of the conveying belt is realized.
Referring to fig. 1-15, the two driving pulleys 12 are sleeved on the same driving shaft 13 in a group, and the driving shaft 13 is fixed on a pallet frame 51 of the pallet device 5, so that the circular belt 11 on the driving pulley 12 and the driving pulley 11 move along with the pallet device 5, thereby realizing the arbitrary change of the conveying end point, i.e. ensuring that the circular belt 11 can convey the seedling trays 90 into the pallet device 5 after the pallet device 5 reaches each pallet point.
Referring to fig. 1 to 15, the support mechanism 2 includes two support rails 21 symmetrically disposed on the frame 4, a moving shaft assembly disposed on the support rails 21, and an outer ring support assembly.
Referring to fig. 1 to 15, the support rail 21 is symmetrically fixed inside the frame 4, the support rail 21 is divided into two symmetrical sections at the midpoint to facilitate processing and installation, the tail end of the support rail 21 is bent downward along the turning direction of the circular belt 11 to extend the track, and a cartridge type moving shaft storage structure is formed, which can make the moving shaft 22 avoid the first pair of steering wheels 14-1 on the support surface, so as to reduce the occupation of the conveying space when the moving shaft 22 is compressed.
Referring to fig. 1 to 15, the moving shaft assembly includes a plurality of moving shafts 22 capable of being expanded or contracted on support rails 21, a shaft sleeve 23, a flexible rope 24 and a stopper ring 25, wherein both ends of the moving shafts 22 are inserted into the support rails 21 at both sides and form a moving pair with the support rails 21, and the plurality of moving shafts 22 are arranged in parallel; the shaft sleeve 23 is sleeved in the middle of the moving shaft 22 to reduce the friction force between the circular belt 11 and the moving shaft 22; the flexible ropes 24 penetrate through the small holes in the movable shafts 22 on the inner side of the support guide rail 21, the flexible ropes 24 in the small holes are fixed through jackscrews 26 at two ends of the movable shafts 22, so that the rope lengths between two adjacent movable shafts 22 are fixed, the rope lengths between every two movable shafts 22 are consistent, and meanwhile, the rope distances between two ends of each movable shaft 22 and the other movable shafts 22 are equal, so that the movable shafts 22 are ensured to be parallel to each other; one end of the flexible rope 24 is fixed on the pallet frame 51 of the pallet device 5, so that the pallet device 5 can pull the moving shaft 22 to move when moving, and the other end of the flexible rope 24 is fixed on an end point (starting point position or end point position) of the frame 4 to limit the moving range of the last moving shaft 22, so as to ensure that the maximum clearance of the moving shaft 22 for supporting the circular belt 11 is the rope length between the moving shafts 22; the limiting rings 25 are fixed at both ends of the moving shaft 22, and are used for preventing the moving shaft 22 from swinging left and right to be separated from the support guide rail 21.
Referring to fig. 1-15, the outer ring support assembly includes an outer ring support shaft 27, a rotating sleeve 28 and a circular belt limiting frame 29, wherein the outer ring support shaft 27 is fixed at the outer side of the frame 4 at equal intervals, and the direction of the outer ring support shaft is outward, so as to support the circular belt 11 which is wound around the outer side of the frame 4; the rotating sleeve 28 is sleeved at the tail end of the outer ring supporting shaft 27, and a bearing is embedded in the rotating sleeve for reducing friction force; the circular band limiting frame 29 is matched with the slotted hole of the outer ring supporting shaft 27 and is used for clamping the rotating sleeve 28 in the middle and simultaneously restraining the circular band 11 from swinging.
Referring to fig. 1 to 15, the flange mechanism 3 includes a flange fixing frame 31, a flange rotator 32 and a flange belt 33, the flange fixing frame 31 is symmetrically disposed at two ends of the frame 4, a slot is disposed on the flange fixing frame 31, four sides of the flange rotator 32 are symmetrically fixed in the pallet frame 51 of the pallet device 5, an end of the flange belt 33 is fixed on the flange fixing frame 31, and the end of the flange belt 33 can move along the slot of the flange fixing frame 31, thereby playing a role of tensioning the flange belt 33; the middle section of each flange belt 33 is bent in a trapezoidal shape to go round under the action of the four flange rotors 32 on the same side of the laying disc frame 51 of the laying disc device 5, so that the blocking of the receiving disc of the laying disc device 5 is effectively avoided.
Referring to fig. 1 to 15, during the movement of the paving device 5, one end of the conveyor belt plane (i.e. two circular belts 11) in front of and behind the paving device 5 is lengthened, and the other end is shortened, and the absolute value of the change of the two is equal, and at the lengthened end of the conveyor belt plane, the flexible rope 24 fixed on the paving disc frame 51 of the paving device 5 pulls the moving shaft 22 to move, so as to provide support for the lengthened conveyor belt plane, and at the shortened end of the conveyor belt plane, the paving device 5 pushes the moving shaft 22 to move, so as to compress the support space of the moving shaft 22, that is, pushes the moving shaft 22 to move, so that the moving shaft 22 is continuously drawn close, thereby compressing the support space of the moving shaft 22 at the side.
Referring to fig. 1-15, the working principle of the seedling tray automatic feeding device is as follows:
when the seedling transplanter is in operation, the seedling disc paving device 5 is positioned at the starting point of the rack 4, the length of the conveying belt plane at the inlet end of the seedling disc is in a minimum value state, and meanwhile, the moving shaft 22 at the starting end is in a limit compression state, namely, is pressed into the clip type moving shaft storage structure at the tail end of the supporting guide rail 21, so that the seedling disc paving device 5 can be close to the starting point of the rack 4 to the maximum extent, namely, the movable range of the seedling disc paving device 5 is maximized; the moving shafts 22 at the end of the frame 4 are in the extreme diffusion state, the flexible ropes 24 between the moving shafts 22 in the extreme diffusion state are in the straightening state, and the length of the plane of the conveyor belt is in the maximum state.
The disc driving mechanism is started, the circular belt 11 starts to circularly rotate along the conveying direction, the seedling trays 90 orderly enter from the inlet ends of the seedling trays and are conveyed into the tray paving device 5 by the circular belt 11 under the guidance of the edge retaining belt 33; after the seedling tray laying device 5 at the starting position finishes seedling tray laying work, the seedling tray laying device 5 moves to the next seedling tray laying point under the driving of the traveling mechanism. In the process, the circular belt 11 moves synchronously with the paving device 5 while the driving pulley 12 moves, because the middle section of the circular belt 11 is turned to the outside of the machine frame 4 to avoid the paving device 5 by the winding pulley assembly for a plurality of times, and the other side of the machine frame 4 is wound back into the driving pulley 12 on the other side of the paving device frame 51 again, the total length of the circular belt 11 is not changed, the plane of the conveying belt on the starting point side of the machine frame 4 is lengthened, the plane of the conveying belt on the other side is shortened, and meanwhile, the circular belt 11 always rotates along with the driving pulley 12, so that the relative conveying speed of the circular belt 11 relative to the paving device 5 is kept unchanged. Meanwhile, in the process, the movable shafts 22 in the cartridge-type movable shaft storage structure at the tail end of the support rail 21 at the end of the starting point of the frame 4 are gradually pulled out, the flexible ropes 24 between the movable shafts 22 are gradually straightened to support the conveyor belt plane with a longer length, the movable shafts 22 at the end of the end point of the frame 4 in the extreme diffusion state are gradually compressed, the flexible ropes 24 between the movable shafts 22 are gradually contracted and folded, and the bent part of the flange belt 33 by the flange rotor 32 moves along with the paving device 5. When the tray device 5 moves to the next tray placement point, the movement is stopped, at the moment, the subsequent seedling trays 90 enter the tray device 5 under the conveying of the round belts 11, the tray device 5 continues to place the seedling trays 90 at the position, after the seedling trays 90 at the position are placed, the tray device 5 continues to move to the next tray placement point, the steps are repeated until the tray device 5 moves to the limit position at one end of the end point of the rack 4, the state of the movable shaft 22 at the position is just opposite to the position of the starting point, the length of the plane of the conveying belt at one end of the starting point of the rack 4 reaches the maximum value state, the movable shaft 22 at the end is in the limit diffusion state, and the movable shaft 22 at the other end is compressed into the elastic clamping type movable shaft storage structure at the tail end of the support guide rail 21. When the palletizing means 5 completes the palletizing operation, the palletizing means 5 starts to return to the starting point of the rack 4.
2. Laying plate device
Referring to fig. 1 to 15, the pallet arrangement device 5 includes a pallet frame 51, a pallet mechanism 52 disposed in the pallet frame 51, and a traveling mechanism 53 for driving the pallet frame 51 to move, wherein the pallet mechanism 52 includes two groups of support members and a lifting mechanism for driving the support members to circularly move in a vertical direction, the two groups of support members are respectively and symmetrically disposed in the pallet frame 51, each group of support members includes a plurality of vertically arranged clamping bars 521, and the clamping bars 521 in the two groups of support members correspond to one another; the lifting mechanism is used for driving the clamping strips 521 in the two groups of supporting pieces to synchronously and circularly move in the vertical direction; the lifting mechanism comprises a chain 522 and a lifting driving mechanism for driving the chain 522 to move, wherein the chain 522 vertically surrounds, and the clamping strip 521 is installed on the chain 522; the two sides of the seedling tray entering the tray laying device 5 are respectively supported by two opposite clamping strips 521 in two groups of supporting pieces; when the seedling tray reaches the tray outlet at the lower end of the seedling tray frame 51, the clamping strips 521 at the two sides are separated from the seedling tray.
Referring to fig. 1 to 15, the two sets of chains 522 are arranged symmetrically, two chains 522 are arranged in each set, and the two chains 522 are arranged in front and back; two ends of the clamping bar 521 are respectively arranged on the two chains 522 in the same group; correspondingly, the lifting driving mechanism comprises a driving chain wheel 523, a driven chain wheel 524 and a lifting power mechanism for driving the driving chain wheel 523 to rotate, wherein the driving chain wheel 523 and the driven chain wheel 524 are four groups, and correspond to the four chains 522; the driving sprocket 523 is disposed above the pallet frame 51, the driven sprocket 524 is disposed below the pallet frame 51, and the chain 522 is wound around the driving sprocket 523 and the driven sprocket 524; the two driving chain wheels 523 and the two driven chain wheels 524 in the same group are connected through a driving transmission shaft 525 and a driven transmission shaft 526 respectively; the lifting power mechanism is used for driving the two groups of driving transmission shafts 525 to rotate reversely.
Through the arrangement, before the seedling tray is conveyed to the tray inlet of the tray paving frame 51 by the automatic seedling tray feeding device, the lifting driving mechanism drives the two groups of chains 522 to rotate circularly, so that the clamping strips 521 opposite to two sides (the two clamping strips 521 are at the same height) are lifted synchronously, and when the two clamping strips 521 are positioned at the tray receiving station at the top, the automatic seedling tray feeding device feeds the seedling tray into the tray paving frame 51 from the tray inlet, so that two sides of the seedling tray are supported on the two clamping strips 521; after the seedling tray completely enters, the lifting driving mechanism drives the chains 522 at the two sides to rotate, so that two clamping bars 521 containing the seedling tray move downwards to the other two clamping bars 521 arranged oppositely and circularly convey the seedling tray to the material receiving station; by repeating the above steps, a plurality of seedling trays 90 can be respectively stored in the plurality of clamping bars 521. When the tray needs to be paved, the lifting driving mechanism drives the chain 522 to rotate, when the clamping strips 521 rotate to the arc section from the vertical section of the chain 522, the distance between the two opposite clamping strips 521 can be increased, and when the distance is increased to a certain degree, the two sides of the seedling tray 90 positioned at the lowest position can be separated from the clamping strips 521 below the seedling tray, so that the seedling tray 90 horizontally falls from the tray outlet to complete the tray paving work.
In addition, in this embodiment, the elevating power mechanism includes an elevating motor 527, the elevating motor 527 is installed on the paving disc frame 51, a main shaft of the elevating motor 527 is connected with one set of driving transmission shaft 525 through a chain transmission mechanism 528, the main shaft of the elevating motor 527 is connected with the other set of driving transmission shaft 525 through a chain transmission mechanism 529, the gear transmission mechanism 54 includes a driven gear arranged on the driving transmission shaft 525 and a driving gear rotatably connected to the paving disc frame 51 through a rotating shaft, wherein two ends of the chain transmission mechanism 529 are respectively connected with the main shaft of the elevating motor 527 and the rotating shaft. Through the above arrangement, it is ensured that the chains 522 on both sides can synchronously rotate in opposite directions under the driving of the lifting motor 527, so that the clamping strips 521 on the chains 522 can synchronously lift.
In addition, in this embodiment, the seedling tray 90 descends by its own gravity, and the driving of the lifting motor 527 only controls the height of the seedling tray 90 and further controls the tray laying, so the power required by the lifting motor 527 is very small, and the driving of the single lifting motor 527 is adopted, so that the two sets of chains 522 are completely synchronous, and the working section (i.e. the vertical section close to the seedling tray 90) of the chains 522 passes through the guide groove of the guide rail 55, so that the clamp bars 521 can bear the heavy object without local torsion of the chains 522, and the device is simple to control and low in failure rate.
Referring to fig. 1 to 15, the pallet mechanism 52 further includes a guide mechanism for preventing the chains 522 from twisting during movement, wherein the guide mechanism includes two guide rails 55 disposed on the left and right sides of the pallet frame 51, and the two guide rails 55 on each side correspond to the two chains 522 on the same side of the pallet frame 51; the guide rail 55 is installed in the pallet frame 51, and a vertically extending guide groove is formed in the guide rail 55, and a vertical section (i.e., a working section) of the chain 522 adjacent to the clip strip 521 is located in the guide groove. Through the arrangement, the guide groove in the guide rail 55 can limit the vertical section (working section) of the chain 522, and when the chain 522 vertically moves, the guide groove can prevent the vertical section (working section) of the chain 522 from twisting or shaking.
Referring to fig. 1 to 15, the tray laying mechanism 52 further includes a limiting mechanism for limiting the seedling trays which do lifting movement, and the limiting mechanism includes two sets of tray laying guide plates 56 and tray laying baffle plates 57, wherein the two sets of tray laying guide plates 56 are respectively located at the left and right sides of the tray laying frame 51, the two sets of tray laying guide plates 56 are respectively located at the front and rear sides of the tray laying frame 51, and the two tray laying guide plates 56 are arranged at the front and rear sides of the tray laying frame 51; the two tray placing guide plates 56 on the left side and the right side of the tray laying frame 51 correspond to each other one by one; wherein the tray placing guide plate 56 is mounted on the tray laying frame 51 and extends obliquely inwards from top to bottom; the two tray placing baffles 57 are respectively positioned in the middle of the front side and the rear side of the tray laying frame 51 and are symmetrically arranged; the tray placing baffle 57 is installed on the tray laying frame 51 and extends inwards from top to bottom in an inclined manner; wherein, the distance between the bottommost parts of the two opposite tray placing guide plates 56 is equal to the width of the seedling tray 90, and the distance between the bottommost parts of the two opposite tray placing baffle plates 57 is equal to the length of the seedling tray 90; the tray placing guide plate 56 and the tray placing baffle plate 57 form a rectangular cone structure from top to bottom, so that the seedling tray 90 gradually draws close to the center of the tray placing frame 51 in the descending process and is always kept horizontal.
Through setting up put a set baffle 56 with put a set baffle 57, make put a set baffle 56 with put a set baffle 57 and constitute top-down's rectangle awl structure, not only can realize like this that the left and right directions and the fore-and-aft direction to the seedling dish spacing, but also can realize guiding seedling dish 90 to correct this seedling dish 90's position, make seedling dish 90 can be smoothly from the play dish mouth level of shop dish frame 51 below falls, accomplishes shop dish work.
Referring to fig. 1 to 15, the traveling mechanism 53 includes two traveling wheel sets and a traveling driving mechanism for driving the traveling wheel sets to rotate, where the two traveling wheel sets are located at the front and rear sides of the pallet frame 51, each traveling wheel set includes two traveling wheels 531 and a transmission shaft 532 for connecting the two traveling wheels 531, where the transmission shaft 532 is mounted on the pallet frame 51, and two ends of the transmission shaft respectively extend out of the pallet frame 51 horizontally to connect with the two traveling wheels 531; the walking driving mechanism comprises a walking motor 533, the walking motor 533 is arranged on the paving plate frame 51, and a main shaft of the walking motor is connected with a transmission shaft 532 in one group of walking wheel sets through a synchronous belt transmission mechanism or a gear transmission mechanism; the road wheels 531 are matched with the paved conveying guide rail 6. The transmission shaft 532 is driven by the walking motor 533 to rotate, so as to drive the pallet frame 51 to move on the conveying guide rail 55, and thus the pallet device 5 is driven to move to each pallet point to complete the pallet operation.
Referring to fig. 1 to 15, the pallet paving mechanism 52 further includes two sets of tensioning mechanisms for adjusting the tensioning degrees of the two sets of chains 522, the two sets of tensioning mechanisms are respectively used for adjusting the tensioning degrees of the two sets of chains 522, each set of tensioning mechanism includes two tensioning sprockets 58 and a connecting rod 59 for connecting the two tensioning sprockets 58, wherein the tensioning sprockets 58 are rotatably connected to the connecting rod 59 through bearings, and the two tensioning sprockets 58 are respectively matched with the two chains 522 on the front side and the rear side in the same set of chains 522; the pallet frame 51 is provided with an adjustment groove at a position corresponding to the connection rod 59, and the extension direction of the adjustment groove is perpendicular to the circulating direction of the chain 522, i.e., the horizontal direction. By providing the above arrangement, the position of the tension sprocket 58 can be adjusted by adjusting the horizontal position of the connecting rod 59, so as to adjust the tension of the chain 522, for example, the connecting rod 59 moves inward, so that the contact area between the tension sprocket 58 and the chain 522 is reduced, so that the chain 522 becomes slack, and when the connecting rod 59 moves outward, so that the contact area between the tension sprocket 58 and the chain 522 is increased, so that the chain 522 is tensioned, and in addition, the contact position between the tension sprocket 58 and the chain 522 must be a non-working section of the chain 522, namely a vertical section of the chain 522 away from the seedling tray 90.
Referring to fig. 1-15, the length of the clamping bar 521 is shorter than that of the seedling tray 90, and in the continuous tray laying process, after the previous seedling tray 90 descends, the second seedling tray 90 has a buffer stroke to enter the circulation interval of the clamping bar 521, which is beneficial to reducing the failure rate in the continuous tray laying process; the fastener 521 includes a steel frame 5211 and steel wheels 5212, wherein the steel frame 5211 is made of two steel bars; a plurality of steel wheels 5212 are arranged along the length direction of the steel frame 5211, and two ends of each steel wheel 5212 are rotatably connected/fixed to the two steel bars respectively; one side of the steel frame 5211 is located in the space between the two guide rails 55 of the same set, and the other side of the steel frame 5211 extends inward to form the space.
Referring to fig. 1-15, the paving disc device 5 is further provided with a circular belt driving mechanism for driving the circular belt 11 to move, the circular belt driving mechanism comprises a driving motor 9 mounted on the paving disc frame 51, and the driving motor 9 is connected with a driving shaft 13 on one side thereof through a chain transmission mechanism 10 or a gear transmission mechanism, so as to drive the circular belt 11 to move, and thus, the seedling disc 90 is conveyed.
Referring to fig. 1 to 15, the lower ends of the left and right sides of the paving disc frame 51 are provided with guide wheels 8, two guide wheels 8 are arranged on each side, and the two guide wheels 8 are arranged in front and back; the rack 4 is provided with a slide rail 4 at a position corresponding to the guide wheel 8, and the guide wheel 8 is matched with the slide rail 7, so that the movement of the paving device 5 is guided.
With reference to fig. 1 to 15, the working principle of the laying device 5 is:
before the seedling tray is conveyed to the tray inlet of the tray paving frame 51 by the automatic seedling tray feeding device, the lifting driving mechanism drives the two groups of chains 522 to rotate circularly, so that the clamping strips 521 which are opposite at two sides (the two clamping strips 521 are at the same height) are lifted synchronously, and when the two clamping strips 521 are positioned at the uppermost tray receiving station, the automatic seedling tray feeding device feeds the seedling tray 90 into the tray paving frame 51 from the tray inlet, so that two sides of the seedling tray 90 are supported on the two opposite clamping strips 521; after the seedling tray 90 completely enters, the lifting driving mechanism drives the chains 522 at two sides to rotate, so that two clamping bars 521 for holding the seedling tray 90 move downwards by one layer, and meanwhile, the other two clamping bars 521 arranged oppositely are circularly transported to the material receiving station; by repeating the above steps, a plurality of seedling trays 90 can be respectively stored in a plurality of pairs of clamping bars 521; when the tray needs to be paved, the lifting driving mechanism drives the chain 522 to rotate, when the clamping strips 521 rotate to the arc section from the vertical section of the chain 522, the distance between the two opposite clamping strips 521 can be increased, and when the distance is increased to a certain degree, the two sides of the seedling tray 90 positioned at the lowest position can be separated from the clamping strips 521 below the seedling tray, so that the seedling tray 90 horizontally falls from the tray outlet to complete the tray paving work.
When the seedling tray 90 descends from the tray inlet to the tray outlet, the tray placing guide plate 56 and the tray placing baffle plate 57 form a rectangular cone structure from top to bottom, so that the left and right directions and the front and back directions of the seedling tray 90 can be limited, and the seedling tray 90 can be guided, so that the position of the seedling tray 90 can be corrected, the seedling tray 90 can smoothly fall from the tray outlet below the tray laying frame 51, and the tray laying work is completed.
In addition, in the above process, the tray paving device 5 can receive and lay the trays at the same time, and the trays are circularly rotated vertically through the chain 522, so that the seedling trays 90 on each pair of clamping bars 521 are conveyed to the tray outlet of the tray paving device 51, and meanwhile, the other pairs of clamping bars 521 reach the tray receiving station; the conveying mechanism 1 in the seedling tray automatic feeding device continuously conveys the seedling tray 90 into the tray inlet of the tray laying frame 51, enters a tray receiving station and then falls onto two oppositely arranged clamping strips 521; thus, the disk laying device 5 can synchronously complete the disk receiving operation at the same time of disk laying.
The above description is a preferred embodiment of the present invention, but the present invention is not limited to the above description, and any other changes, modifications, substitutions, blocks and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and they are included in the scope of the present invention.

Claims (10)

1. An automatic rice seedling tray field laying device is characterized by comprising a tray laying device and a seedling tray automatic feeding device, wherein,
the seedling tray automatic feeding device is used for automatically conveying seedling trays to the tray paving device;
the disc paving device comprises a disc paving frame, a disc paving mechanism arranged in the disc paving frame and a travelling mechanism for driving the disc paving frame to move, wherein the disc paving mechanism comprises two groups of supporting pieces and a lifting mechanism for driving the supporting pieces to circularly move in the vertical direction, the two groups of supporting pieces are respectively and symmetrically arranged in the disc paving frame, each group of supporting pieces comprises a plurality of vertically arranged clamping strips, and the clamping strips in the two groups of supporting pieces are in one-to-one correspondence; the lifting mechanism is used for driving a plurality of clamping strips in the two groups of supporting pieces to synchronously and circularly move in the vertical direction; the lifting mechanism comprises a chain and a lifting driving mechanism for driving the chain to move, wherein the chain vertically surrounds the lifting mechanism, and the clamping strip is installed on the chain; the two sides of the seedling tray entering the tray laying device are respectively supported by two opposite clamping strips in two groups of supporting pieces; when the seedling tray reaches the tray outlet at the lower end of the seedling tray frame, the clamping strips on the two sides do reverse circular motion and are separated from the seedling tray.
2. The automatic rice seedling tray field laying device as claimed in claim 1, wherein the number of the chains is two, the two groups of the chains are arranged in bilateral symmetry, each group of the chains is two, and the two chains are arranged in front and back; two ends of the clamping strip are respectively arranged on the two chains in the same group; correspondingly, the lifting driving mechanism comprises a driving chain wheel, a driven chain wheel and a lifting power mechanism for driving the driving chain wheel to rotate, wherein the driving chain wheel and the driven chain wheel are four groups and correspond to four chains; the driving chain wheel is arranged above the paving disc frame, the driven chain wheel is arranged below the paving disc frame, and the chain is wound on the driving chain wheel and the driven chain wheel; the two driving chain wheels in the same group and the two driven chain wheels in the same group are connected through a driving transmission shaft and a driven transmission shaft respectively; the lifting power mechanism is used for driving the two groups of driving transmission shafts to rotate reversely.
3. The automatic rice seedling tray field laying device according to claim 2, wherein the tray laying mechanism further comprises a limiting mechanism for limiting seedling trays which do lifting movement, the limiting mechanism comprises tray placing guide plates and tray placing baffle plates, the two sets of tray placing guide plates are arranged on the left side and the right side of the tray laying frame respectively, the two tray placing guide plates are arranged on the two sides of each tray laying guide plate, and the two tray placing guide plates are arranged on the front side and the rear side of the tray laying frame; the two tray placing guide plates on the left side and the right side of the tray laying frame correspond to each other one by one; the tray placing guide plate is arranged on the tray laying frame and extends inwards in an inclined mode from top to bottom; the two tray placing baffles are respectively positioned in the middle of the front side and the rear side of the tray laying frame and are symmetrically arranged; the tray placing baffle is arranged on the tray laying frame and extends inwards from top to bottom in an inclined mode; wherein, the distance between the bottommost parts of the two opposite tray placing guide plates is equal to the width of the seedling tray, and the distance between the bottommost parts of the two opposite tray placing baffle plates is equal to the length of the seedling tray; the tray placing guide plate and the tray placing baffle plate form a rectangular cone structure from top to bottom.
4. The automatic rice seedling disc field laying device according to claim 3, wherein the disc laying mechanism further comprises a guide mechanism for preventing the chains from twisting during movement, wherein the guide mechanism comprises two guide rails arranged on the left side and the right side of the disc laying frame, and the two guide rails on each side correspond to the two chains on the same side of the disc laying frame; the guide rail is arranged on the inner side of the tray placing guide plate, a guide groove which extends vertically is arranged in the guide rail, and the vertical section of the chains on the two sides, which is close to the middle of the tray laying frame, is positioned in the guide groove.
5. The automatic rice seedling disc field laying device according to claim 4, wherein the travelling mechanism comprises two travelling wheel sets and a travelling driving mechanism for driving the travelling wheel sets to rotate, wherein the two travelling wheel sets are positioned on the front side and the rear side of the disc laying frame, each travelling wheel set comprises two travelling wheels and a transmission shaft for connecting the two travelling wheels, the transmission shaft is mounted on the disc laying frame, and the left end and the right end of the transmission shaft respectively horizontally extend out of the disc laying frame to be connected with the two travelling wheels; the walking driving mechanism comprises a walking motor, the walking motor is arranged on the paving disc frame, and a main shaft of the walking motor is connected with a transmission shaft in one group of walking wheel sets through a synchronous belt transmission mechanism or a gear transmission mechanism; the travelling wheels are matched with a conveying guide rail arranged on the rack and used for realizing the movement of the paving disc frame on the conveying guide rail.
6. The automatic rice seedling tray field laying device as claimed in claim 4, wherein the tray laying mechanism further comprises two tensioning mechanisms for adjusting the tensioning degree of the two sets of chains, the two tensioning mechanisms are respectively used for realizing adjustment of the tensioning degree of the two sets of chains, each set of tensioning mechanism comprises two tensioning chain wheels and a connecting rod for connecting the two tensioning chain wheels, the tensioning chain wheels are rotatably connected to the connecting rod through bearings, and the two tensioning chain wheels are respectively meshed with the inner sides, far away from the tray laying frame, of the two chains on the front side and the rear side in the same set of chains; the paving rack is provided with an adjusting groove at a position corresponding to the connecting rod, and the extending direction of the adjusting groove is perpendicular to the surrounding direction of the chain.
7. The automatic rice seedling tray field laying device as claimed in claim 4, wherein the length of the clamping strip is shorter than that of the seedling tray, the clamping strip comprises a steel frame and a steel wheel, wherein the steel frame is composed of two steel bars; the steel frame is characterized in that the steel frame is provided with a plurality of steel wheels, the plurality of steel wheels are arranged along the length direction of the steel frame, and two ends of each steel wheel are respectively rotatably connected/fixed on the two steel bars; one side of the steel frame is positioned in a space between the two guide rails in the same group, and the other side of the steel frame extends inwards to form the space.
8. The automatic rice seedling tray field laying device as claimed in claim 1, wherein the automatic rice seedling tray feeding device comprises a conveying mechanism arranged on a frame and used for conveying seedling trays, a supporting mechanism used for supporting the conveying mechanism, and a flange mechanism used for preventing the seedling trays from deviating; the paving device is movably arranged in the rack and moves along the length direction of the rack; wherein the content of the first and second substances,
the supporting mechanism comprises two supporting guide rails symmetrically arranged on the rack, a movable shaft assembly and an outer ring supporting assembly, wherein the movable shaft assembly is arranged on the supporting guide rails and comprises a plurality of movable shafts which can be expanded or contracted on the supporting guide rails;
the conveying mechanism comprises two circular belts, driving belt pulleys arranged on two sides of the paving disc frame and pulley assemblies symmetrically arranged at two ends of the rack; the pulley assembly comprises a steering wheel set and a tensioning wheel set; the starting ends of the two circular belts are respectively arranged on a driving belt wheel on one side of the paving disc frame, the middle section of each circular belt extends along the length direction of the rack after coming out of the driving belt wheel on the side, and is subjected to multiple steering through a pulley assembly and then is arranged on the outer side of the rack, the circular belts are conveyed to the other end of the rack under the guidance of the outer ring supporting assembly, and then are wound back to the driving belt wheel on the other end of the paving disc frame through the pulley assembly on the other end of the rack again, so that the circular belts form a closed loop structure capable of avoiding the moving track of the paving disc device in space; the two circular belts form a conveying belt plane for conveying the seedling trays on the front side and the rear side of the seedling tray laying frame; the paving device is also provided with a circular belt driving mechanism for driving the circular belt to move.
9. The automatic rice seedling tray field laying device as claimed in claim 8, wherein the flange mechanism comprises a flange fixing frame, flange rotors and two flanges, wherein the flange rotors are arranged on the left inner side and the right inner side of the laying tray frame, and the number of the flange rotors on each side is four; the two flange belts are symmetrically arranged on the flange fixing frame and extend along the length direction of the rack; the middle section of each flange belt is bent in a trapezoidal shape to detour under the action of four flange rotors on the same side of the paving disc frame; the flange fixing frames are symmetrically arranged at two ends of the rack, and are provided with slotted holes for penetrating through the flange belts; and two ends of the flange belt are arranged on the slotted holes of the flange fixing frame.
10. The automatic rice seedling disc field laying device as claimed in claim 9, wherein the steering wheel set comprises two first steering wheels arranged above the frame, two second steering wheels arranged below the two first steering wheels, and two roller shafts for respectively connecting the two first steering wheels; the tensioning wheel set comprises a tensioning wheel and wheel frames fixed at four corners of the outer side of the frame, and the wheel frames are provided with slotted holes; the middle section of the circular belt extends along the length direction of the rack after coming out of the driving belt wheel, turns 90 degrees downwards after reaching the first steering wheel, turns 90 degrees outwards after reaching the second steering wheel, and continues to turn 90 degrees outwards after reaching the tension wheel, so that the middle section of the circular belt is parallel to the length direction of the rack; the middle section of the circular belt extends to the tension wheel on the other side of the machine frame along the length direction of the machine frame and sequentially surrounds the second steering wheel, the first steering wheel and the driving belt wheel on the side to form a closed-loop structure.
CN202211069318.6A 2022-09-02 2022-09-02 Automatic field laying device for rice seedling trays Active CN115462258B (en)

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CN202211069318.6A CN115462258B (en) 2022-09-02 2022-09-02 Automatic field laying device for rice seedling trays

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115849026A (en) * 2022-12-29 2023-03-28 湖北尖兵农业科技服务有限公司 Device is put to multilayer sprout cultivation dish lower wall in field

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Publication number Priority date Publication date Assignee Title
CN109673325A (en) * 2019-01-04 2019-04-26 浙江经济职业技术学院 A kind of fining field paving disk machine and its paving disk method
CN109906824A (en) * 2019-01-04 2019-06-21 浙江理工大学 A kind of field paving disk method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109673325A (en) * 2019-01-04 2019-04-26 浙江经济职业技术学院 A kind of fining field paving disk machine and its paving disk method
CN109906824A (en) * 2019-01-04 2019-06-21 浙江理工大学 A kind of field paving disk method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115849026A (en) * 2022-12-29 2023-03-28 湖北尖兵农业科技服务有限公司 Device is put to multilayer sprout cultivation dish lower wall in field
CN115849026B (en) * 2022-12-29 2024-05-28 湖北尖兵农业科技服务有限公司 Device is put to field multilayer sprout cultivation dish lower plate

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