CN115462258B - Automatic field laying device for rice seedling trays - Google Patents
Automatic field laying device for rice seedling trays Download PDFInfo
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- CN115462258B CN115462258B CN202211069318.6A CN202211069318A CN115462258B CN 115462258 B CN115462258 B CN 115462258B CN 202211069318 A CN202211069318 A CN 202211069318A CN 115462258 B CN115462258 B CN 115462258B
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 26
- 235000009566 rice Nutrition 0.000 title claims abstract description 26
- 240000007594 Oryza sativa Species 0.000 title 1
- 230000007246 mechanism Effects 0.000 claims abstract description 137
- 241000209094 Oryza Species 0.000 claims abstract description 25
- 230000000670 limiting effect Effects 0.000 claims abstract description 17
- 230000033001 locomotion Effects 0.000 claims abstract description 10
- 230000002441 reversible effect Effects 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000003860 storage Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009331 sowing Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
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- 230000004720 fertilization Effects 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
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- 230000003313 weakening effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/08—Devices for filling-up flower-pots or pots for seedlings; Devices for setting plants or seeds in pots
- A01G9/088—Handling or transferring pots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors 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
- B65G15/30—Belts or like endless load-carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/10—Supporting 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
- B65G21/14—Supporting 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/04—Devices for feeding articles or materials to conveyors for feeding articles
- B65G47/12—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
Landscapes
- 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 an automatic rice seedling tray field laying device which comprises a tray laying device and an automatic seedling tray feeding device, wherein the tray laying device comprises a tray laying frame, a tray laying mechanism and a travelling mechanism, the tray laying mechanism comprises two groups of supporting pieces, a lifting mechanism and a limiting mechanism, the two groups of supporting pieces are respectively and symmetrically arranged in the tray laying frame, each group of supporting pieces comprises a plurality of clamping strips which are vertically arranged, and the clamping strips in the two groups of supporting pieces are in one-to-one correspondence; the lifting mechanism comprises a chain and a lifting driving mechanism; the chain vertically surrounds, and the clamping strip is arranged on the chain; two sides of a seedling tray entering the tray paving device are respectively supported by two opposite clamping strips in two groups of supporting pieces; when the seedling tray reaches the tray outlet of the tray laying frame, the clamping strips at the two sides do reverse circular motion to be separated from the seedling tray. The automatic rice seedling tray field laying device has the advantages of simple structure, good stability and automatic and continuous tray laying.
Description
Technical Field
The invention relates to agricultural machinery automation equipment, in particular to an automatic field laying device for a rice seedling tray.
Background
The rice field seedling raising and the factory seedling raising are important components in the agricultural mechanized process of rice, and a rice seedling tray seedling raising and sowing production line integrating multiple links of seedling tray feeding, matrix paving, sowing, surface soil covering, water sprinkling and tray stacking is realized at present. But the mechanical degree of the tray-laying ring joint used as the rice seedling tray seedling raising and sowing production line is lower, the tray-laying ring joint mainly relies on manual one by one to put the seedling trays, and then mechanical auxiliary semi-automatic seedling tray arrangement is carried out, so that the tray-laying device is the link with the greatest labor intensity and the smallest mechanical degree in rice seedling raising; the quality of the tray laying directly influences the later growth of seedlings and the operation quality of links such as fertilization, pesticide application and the like in the later period, and the tray laying efficiency has important influence on the optimal growth period of seedlings. The development of the automatic rice tray paving machine has important significance for mechanized production of rice, labor intensity reduction and labor productivity improvement.
Most of the existing tray paving devices need semi-automatic tray paving for manual tray supply, and continuous tray paving cannot be realized. Some tray paving devices with higher automation degree also need to be manually refilled after realizing limited seedling tray placement, and cannot continuously operate. For example, patent application number 202010145091.3 discloses a tray discharging device for field tray discharging operation, and although orderly laying of the whole stack of seedling trays is completed through a cam pair, manual tray feeding is still needed after the whole stack of seedling trays are laid, continuous tray discharging cannot be realized, labor saving can only be realized to a limited extent, and productivity is still severely restricted. In addition, a small amount of full-automatic tray paving machine has 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 has the advantages of simple structure, good stability and automatic and continuous tray laying.
The technical scheme for solving the problems in the prior art is as follows:
an automatic field laying device for rice seedling trays comprises a tray laying device and an automatic seedling tray feeding device, wherein,
the seedling tray automatic feeding device is used for automatically conveying the seedling tray into the tray paving device;
the tray laying device comprises a tray laying frame, a tray laying mechanism arranged in the tray laying frame and a travelling mechanism for driving the tray laying frame to move, wherein the tray laying mechanism comprises supporting pieces and a lifting mechanism for driving the supporting pieces to circularly move in the vertical direction, the two supporting pieces are respectively and symmetrically arranged in the tray laying frame, each supporting piece comprises a plurality of vertically arranged clamping strips, and the clamping strips in the two 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 arranged on the chain; two sides of a seedling tray entering the tray paving 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 tray laying frame, the clamping strips at the two sides do reverse circular motion to be separated from the seedling tray.
Preferably, the two groups of chains are arranged symmetrically left and right, each group of chains is two, and the two chains are arranged front and back; two ends of the clamping strip are respectively arranged on two chains in the same group; correspondingly, the lifting driving mechanism comprises a driving sprocket, a driven sprocket and a lifting power mechanism for driving the driving sprocket to rotate, wherein the driving sprocket and the driven sprocket are four groups, and four chains are correspondingly arranged; the driving chain wheel is arranged above the tray laying frame, the driven chain wheel is arranged below the tray laying frame, and the chain surrounds the driving chain wheel and the driven chain wheel; the two driving chain wheels of the same group are respectively connected with the two driven chain wheels of the same group through a driving transmission shaft and a driven transmission shaft; the lifting power mechanism is used for driving the two groups of driving transmission shafts to reversely rotate.
Preferably, the tray laying mechanism further comprises a guide mechanism for preventing the chains from twisting in the moving process, wherein the guide mechanism comprises two guide rails arranged on the left side and the right side of the tray laying frame, and each side of the guide rails is provided with two guide rails corresponding to the two chains on the same side of the tray laying frame; the guide rail is arranged in the tray laying frame, a guide groove which extends vertically is arranged in the guide rail, and a vertical section, close to the middle of the tray laying frame, of the chains on two sides is positioned in the guide groove.
Preferably, the tray laying mechanism further comprises a limiting mechanism for limiting the seedling tray which moves up and down, the limiting mechanism comprises two groups of tray guide plates and tray guide plates, the tray guide plates on two sides are respectively positioned on the left side and the right side of the tray laying frame, each group of tray guide plates is two, and the two tray guide plates are arranged on the front side and the rear side of the tray laying frame; two tray guide plates on the left side and the right side of the tray laying frame are in one-to-one correspondence; wherein, the tray guide plate is arranged on the tray laying frame and extends inwards from top to bottom in an inclined manner; the two disc placing baffles are respectively positioned in the middle of the front side and the rear side of the disc laying frame and are symmetrically arranged; the tray baffle is arranged on the tray laying frame and extends inwards from top to bottom in an inclined manner; wherein, the interval between the bottommost parts of two opposite tray guiding plates is equal to the width of the seedling tray, and the interval between the bottommost parts of two opposite tray guiding plates is equal to the length of the seedling tray; the disc placing guide plate and the disc placing baffle plate form a rectangular cone structure from top to bottom.
Preferably, the travelling mechanism comprises two travelling wheel groups and a travelling driving mechanism for driving the travelling wheel groups to rotate, wherein the two travelling wheel groups are positioned at the front side and the rear side of the tray paving frame, each travelling wheel group comprises two travelling wheels and a transmission shaft for connecting the two travelling wheels, the transmission shaft is arranged on the tray paving frame, and the left end and the right end of the transmission shaft extend out of the tray paving frame horizontally and are connected with the two travelling wheels; the travelling driving mechanism comprises a travelling motor which is arranged on the tray laying frame, and a main shaft of the travelling motor is connected with a transmission shaft in one group of travelling wheel sets through a synchronous belt transmission mechanism or a gear transmission mechanism; the travelling wheel is matched with a conveying guide rail arranged on the frame and used for realizing the movement of the tray laying frame on the conveying guide rail.
Preferably, the tray laying mechanism further comprises two tensioning mechanisms for adjusting the tensioning degree of two groups of chains, wherein the two tensioning mechanisms are respectively used for adjusting the tensioning degree of the two groups of chains, each group of tensioning mechanisms 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 of the same group of chains; the tray laying frame 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 encircling direction of the chain.
Preferably, the length of the clamping strip is shorter than that of the seedling tray, and the clamping strip comprises a steel frame and a steel wheel, wherein the steel frame consists of two steel bars; the steel wheels are arranged along the length direction of the steel frame, and two ends of each steel wheel are respectively connected/fixed on two steel bars in a rotating way; one side of the steel frame is positioned in the space between the two guide rails in the same group, and the other side of the steel frame extends inwards to form the space.
Preferably, the automatic seedling tray feeding device comprises a conveying mechanism, a supporting mechanism and a flange mechanism, wherein the conveying mechanism is arranged on a rack and used for conveying seedling trays, the supporting mechanism is used for supporting the conveying mechanism, and the flange mechanism is used for preventing the seedling trays from deviating; the tray paving device is movably arranged in the frame and moves along the length direction of the frame; wherein,
The support mechanism comprises two support guide rails symmetrically arranged on the frame, a movable shaft assembly arranged on the support guide rails and an outer ring support assembly, wherein the movable shaft assembly comprises a plurality of movable shafts which can be unfolded or contracted on the support guide rails;
the conveying mechanism comprises two circular belts, driving pulleys arranged on two sides of the tray paving frame and pulley assemblies symmetrically arranged on two ends of the frame; 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 at one side of the tray paving frame, the middle section extends along the length direction of the frame after coming out of the driving belt wheel at the side, and is arranged outside the frame after being turned for multiple times through a pulley assembly, and is conveyed to the other end of the frame under the guidance of the outer ring supporting assembly, and then is wound back onto the driving belt wheel at the other end of the tray paving frame again through a pulley block at the other end of the frame, so that the circular belts form a closed loop structure capable of avoiding the moving track of the tray paving device in space; two circular belts form a conveying belt plane for conveying seedling trays on the front side and the rear side of the tray laying frame; the disc laying 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 tray paving 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 frame; the middle section of each flange belt is bent and detoured in a trapezoid under the action of four flange rotors on the same side of the tray laying frame; the flange fixing frames are symmetrically arranged at two ends of the frame, and slotted holes for penetrating through the flange belts are formed in the flange fixing frames; both ends of the flange band are arranged on the slotted holes of the flange fixing frame.
Preferably, the steering wheel group comprises two first steering wheels arranged above the frame, two second steering wheels arranged 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 a wheel frame fixed on four corners of the outer side of the frame, and the wheel frame is provided with slotted holes; the middle section of the circular belt extends along the length direction of the frame after coming out of the driving belt wheel, and rotates downwards by 90 degrees after reaching the first steering wheel, rotates outwards by 90 degrees after reaching the second steering wheel, and continues to rotate outwards by 90 degrees after reaching the tensioning wheel, so that the middle section is parallel to the length direction of the frame; the middle section of the circular belt extends to the tensioning wheel at the other side of the frame along the length direction of the frame, and sequentially bypasses the second steering wheel, the first steering wheel and the driving belt wheel at the other side to form a closed-loop structure.
Compared with the prior art, the invention has the following beneficial effects:
(1) The tray laying device adopts a mode of combining chain transmission and clamping strips to drive the seedling tray to lift, and due to the circulation characteristic of the chain, the clamping strips can return to a tray receiving station again along with the chain after the clamping strips finish tray arranging so as to realize continuous tray receiving, and after the seedling tray automatic feeding device continuously feeds the seedling trays into the tray laying device one by one, the tray laying device can continuously convey the seedling trays to a tray outlet at the lower end of the tray laying frame; when the tray paving device moves to the tray paving position, the chains on the two sides circularly rotate, so that the seedling tray at the lowest end continuously moves downwards, when the clamping strips enter the circular arc section from the vertical section of the chain, 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 paving frame, automatic seedling tray arrangement is realized, and meanwhile, only one seedling tray is accurately arranged to the tray paving position each time.
(2) The travelling mechanism of the tray paving device can drive the tray paving device to move, so that the tray paving device is driven to reach each tray paving point to perform tray paving work, and the automatic degree is higher.
(3) The automatic field laying device for the rice seedling tray has the advantages of simple structure and good stability, and can realize automatic continuous tray laying, thereby being beneficial to reducing the manufacturing cost, greatly saving the labor cost and reducing the labor degree of workers.
Drawings
FIG. 1 is a schematic perspective view of an automatic field laying device for rice seedling trays.
Fig. 2 is a perspective view of the conveyor, support and flange mechanism of the paving apparatus of the present invention in the middle of the frame.
Fig. 3 is a perspective view of the conveyor and the support mechanism when the paving apparatus of the present invention is positioned at the end point (start position or end position) of the frame.
FIG. 4 is a schematic perspective view of an outer ring support assembly,
Fig. 5 is a schematic perspective view of a cartridge clip type movable shaft storage structure according to the present invention.
Fig. 6 is a half cross-sectional view of the moving shaft in the present invention.
Fig. 7 is a perspective view of the round belt detouring when the laying device of the present invention is positioned at the end point (start position or end position) of the frame.
Fig. 8 is a top view of the flange mechanism of the paving apparatus of the present invention in the middle of the frame.
Fig. 9 is a schematic view of the installation of the paving apparatus of the present invention.
Fig. 10 and 11 are schematic perspective views of the paving apparatus from two different perspectives.
Fig. 12 is a top view of the paving apparatus.
Fig. 13 is a schematic structural view of the clip 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 palletizing mechanism.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto.
Referring to fig. 1-15, the automatic rice seedling tray field laying device of the invention comprises a tray laying device 5 and a seedling tray automatic feeding device, wherein the tray laying device 5 can automatically lay seedling trays 90 on each tray laying point, and the seedling tray automatic feeding device can be used for automatically conveying the seedling trays 90 in the seedling tray storing/stacking device into the tray laying device 5; when the tray laying device 5 reaches each tray laying point, the automatic tray feeding device can still realize the conveying of the trays 90 into the tray laying device 5 so as to realize the automatic laying of the trays 90, although the distance between the tray laying device 5 and the tray storing/stacking device is changed.
The automatic seedling tray feeding device and the tray laying device 5 are respectively described one by one:
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 used for supporting the conveying mechanism 1, and a flange mechanism 2 used for preventing the seedling trays 90 from deviating; wherein the tray laying device 5 is movably arranged in the frame 4, so that the tray laying device 5 can move along the length direction of the frame 4.
Referring to fig. 1-15, the conveying mechanism 1 comprises two circular belts 11, driving pulleys 12 arranged on the front side and the rear side of the tray laying device 5, and pulley assemblies symmetrically arranged on the two ends of the frame 4; wherein, steel wires are arranged in the round belts 11 and used for weakening the elasticity of the round belts 11, two ends of each round belt 11 are respectively arranged on the driving pulleys 12 on two sides of the tray paving frame 51 of the tray paving device 5, when the tray paving device works, the two ends of the round belts 11 synchronously move along with the tray paving device 5, and the middle section of each round belt 11 extends along the length direction of the rack 4 after coming out from the driving pulleys 12; wherein the two circular strips 11 are parallel to each other and both are parallel to the length direction of the frame 4; two circular belts 11 form a section of conveying belt plane on the frame 4; the lower end of the round belt 11 is provided with a plurality of equidistant and parallel moving shafts 22, and the moving shafts 22 are used for supporting the round belt 11 of the long-distance seedling conveying tray 90.
Referring to fig. 1-15, the pulley assembly includes a steering wheel set 14 and a tension wheel set; the middle section of the round belt 11 is placed outside the frame 4 after being turned for a plurality of times by winding the pulley assembly, is transmitted to the other end of the frame 4 under the action of the outer ring supporting assembly, and is wound back to the plane of the conveying belt at the other end of the frame 4 by the pulley assembly again, so that the two groups of round belts 11 can bypass the disc laying device 5 in three-dimensional space.
Referring to fig. 1-15, the steering wheel set 14 includes two first steering wheels 14-1 respectively disposed above two sides of the frame 4, two second steering wheels 14-2 disposed below the first steering wheels 14-1, and a roller shaft 15 respectively for connecting the two first steering wheels 14-1; the tensioning wheel set comprises a tensioning wheel 16 and a wheel frame 17 fixed on four corners of the outer side of the frame 4, a slotted hole is formed in the wheel frame 17, and the tensioning wheel 16 can be moved and adjusted along the wheel frame 17 towards the X axis; the middle section of the round belt 11 extends along the length direction of the frame 4 after coming out of the driving pulley 12 on one side of the tray paving frame 51 of the tray paving device 5, and turns downwards by 90 degrees after reaching the first turning wheel 14-1 on the side, turns outwards by 90 degrees after reaching the second turning wheel 14-2, and turns outwards by 90 degrees after reaching the tensioning wheel 16, so that the round belt 11 is parallel to the length direction of the frame 4, extends onto the tensioning wheel 16 on the other side of the frame 4, and sequentially bypasses the second turning wheel 14-2 and the first turning wheel 14-1 on the side and then surrounds the driving pulley 12 on the other side of the tray paving device 5, and the round belt 11 forms a closed loop in space; the roll shafts 15 are arranged at two ends of the frame 4, and the first steering wheel 14-1 is arranged on the roll shafts 15 and rotates along the X axis and is used for rotating the round belt 11 by 90 degrees and then parallel to the Z axis; the second steering wheel 14-2 is arranged 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 toward the X-axis to adjust the tension of the round belt 11.
Through the arrangement, the round belt 11 rotates downwards by 90 degrees along the first pair of steering wheels 14-1 to enable the seedling outlet tray to enter the space, the second pair of steering wheels 14-2 symmetrically rotates two parallel round belts 11 towards the outer side of the frame 4 by 90 degrees, the round belts 11 are wound out of the inner side of the frame 4, the round belts 11 rotate again by 90 degrees towards the outer side of the frame 4 along the tensioning wheel 16 and then are parallel to the length direction of the frame 4, then the round belts 11 pass through the four outer ring support assemblies and then wind to the other side of the frame 4, the round belts 11 on the other side of the frame 4 are wound back to the plane of the conveying belt again after three times of steering of the symmetrical pulley assemblies (namely finally wind on the driving pulley 12 on the other side of the tray paving device 5), so as to avoid the tray paving device 5 which moves back and forth, and dynamic adjustment of the length of the conveying belt is realized.
Referring to fig. 1-15, the driving pulleys 12 are assembled on the same driving shaft 13, the driving shaft 13 is fixed on the tray laying frame 51 of the tray laying device 5, so that the round belt 11 on the driving pulleys 12 moves along with the tray laying device 5 together with the driving pulleys 11, thereby realizing any change of the conveying end point, namely ensuring that after the tray laying device 5 reaches each tray laying point, the round belt 11 can convey the seedling tray 90 into the tray laying device 5.
Referring to fig. 1-15, the supporting mechanism 2 includes two supporting rails 21 symmetrically disposed on the frame 4, a moving shaft assembly disposed on the supporting rails 21, and an outer ring supporting assembly.
Referring to fig. 1-15, the supporting rail 21 is symmetrically fixed inside the frame 4, the supporting rail 21 is divided into two symmetrical sections at the middle point for convenient processing and installation, the tail end of the supporting rail 21 is bent downwards along the steering direction of the circular belt 11 to extend the track, so as to form a clip type moving shaft storage structure, and the clip type moving shaft storage structure can enable the moving shaft 22 to avoid the first pair of steering wheels 14-1 on the supporting surface, so that the occupation of the conveying space when the moving shaft 22 is compressed is reduced.
Referring to fig. 1 to 15, the moving shaft assembly includes a plurality of moving shafts 22 which can be extended or contracted on the support rails 21, a shaft sleeve 23, a flexible rope 24 and a limiting 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 movable shaft 22 to reduce friction between the circular belt 11 and the movable shaft 22; the flexible ropes 24 pass through small holes on the movable shafts 22 on the inner side of the support guide rail 21, and the flexible ropes 24 in the small holes are fixed through jackscrews 26 at the two ends of the movable shafts 22, so that the rope lengths between two adjacent movable shafts 22 are fixed, the rope lengths between the movable shafts 22 are consistent, and meanwhile, the rope distances between the two ends of each movable shaft 22 and other movable shafts 22 are equal, so that the movable shafts 22 are mutually parallel; one end of the flexible rope 24 is fixed on the tray laying frame 51 of the tray laying device 5, so that the tray laying device 5 can pull the movable shaft 22 to move when moving, and the other end of the flexible rope 24 is fixed at the end point (starting point position or end point position) of the frame 4 so as to limit the moving range of the last movable shaft 22, thereby ensuring that the maximum gap of the movable shaft 22 for supporting the circular belt 11 is the rope length between the movable shafts 22; the limiting rings 25 are fixed at two ends of the moving shaft 22, and are used for preventing the moving shaft 22 from swinging left and right so as to prevent the moving shaft 22 from being separated from the supporting guide rail 21.
Referring to fig. 1-15, the outer ring support assembly comprises 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 equidistantly fixed on the outer side of the frame 4, and is outwards oriented and used for supporting a circular belt 11 which bypasses the outer side of the frame 4; the rotating sleeve 28 is sleeved at the tail end of the outer ring support shaft 27, and is internally embedded with a bearing for reducing friction force; the circular belt limiting frame 29 is matched with the slotted hole of the outer ring support shaft 27, and is used for clamping the rotating sleeve 28 in the middle and restraining the swing of the circular belt 11.
Referring to fig. 1-15, the flange mechanism 3 includes a flange fixing frame 31, a flange rotor 32 and a flange belt 33, the flange fixing frame 31 is symmetrically disposed at two ends of the frame 4, slots are disposed on the flange fixing frame 31, four sides of the flange rotor 32 are symmetrically fixed in the tray paving frame 51 of the tray paving device 5, an end portion of the flange belt 33 is fixed on the flange fixing frame 31, and an end portion of the flange belt 33 can move along the slots of the flange fixing frame 31, so as to play a role in tensioning the flange belt 33; the middle section of each flange belt 33 is bent and wound in a trapezoid shape under the action of the four flange rotors 32 on the same side of the tray paving frame 51 of the tray paving device 5, so that the tray paving device 5 is prevented from being blocked.
Referring to fig. 1-15, during the moving process of the tray paving device 5, one end of the front and rear conveying belt planes (i.e. the two circular belts 11) of the tray paving device 5 is longer, the other end is shorter, the absolute values of the changes of the two circular belts are equal, meanwhile, in the longer end of the conveying belt plane, the flexible rope 24 fixed on the tray paving frame 51 of the tray paving device 5 pulls the moving shaft 22 to move so as to provide support for the longer conveying belt plane, and in the shorter end of the conveying belt plane, the tray paving device 5 pushes the moving shaft 22 to move so as to compress the supporting space of the moving shaft 22, namely pushes the moving shaft 22 to move so that the moving shaft 22 is continuously closed, thereby compressing the supporting space of the moving shaft 22 at the side.
Referring to fig. 1 to 15, the automatic seedling tray feeding device has the following working principle:
when the tray paving device 5 works, the tray paving device 5 is positioned at the starting point of the frame 4, at the moment, the length of the plane of the conveying belt at the inlet end of the seedling tray is in a minimum 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 tray paving device 5 can be maximally close to the starting point of the frame 4, namely, the movable range of the tray paving device 5 is maximized; the movable shafts 22 at the end of the end point of the frame 4 are in a limit diffusion state, the flexible ropes 24 between the movable shafts 22 in the limit diffusion state are in a straightened state, and the length of the plane of the conveying belt is in a maximum value state.
The disc driving mechanism is started, the circular belt 11 starts to circularly rotate along the conveying direction, the seedling trays 90 sequentially enter from the inlet end of the seedling trays, and are conveyed into the tray paving device 5 by the circular belt 11 under the guidance of the baffle belt 33; when the tray laying device 5 at the starting position completes tray laying work of the seedling tray, the tray laying device 5 moves to the next tray laying point under the drive of the travelling mechanism. In this process, the driving pulley 12 moves simultaneously with the movement of the round belt 11, and the round belt 11 always rotates along with the driving pulley 12, so that the relative conveying speed of the round belt 11 relative to the tray laying device 5 is kept unchanged because the middle section of the round belt 11 turns around the pulley assembly a plurality of times to the outer side of the frame 4 to avoid the tray laying device 5 and is wound back into the driving pulley 12 on the other side of the tray laying frame 51 again on the other side of the frame 4, so that the total length of the round belt 11 is unchanged, the conveying belt plane on one side of the starting point of the frame 4 is lengthened, and the conveying belt plane on the other side is shortened, and meanwhile, the round belt 11 always rotates along with the driving pulley 12. Meanwhile, in the process, the moving shafts 22 in the clip type moving shaft storage structure at the tail end of the supporting guide rail 21 at the starting end of the frame 4 are gradually pulled out, the flexible ropes 24 between the moving shafts 22 are gradually straightened to support the plane of the variable-length conveying belt, the moving shafts 22 at the end of the frame 4 in the limit diffusion state are gradually compressed, the flexible ropes 24 between the moving shafts 22 are gradually contracted and folded, and the bending parts of the flange belts 33 by the flange rotors 32 move together with the tray paving device 5. When the tray laying device 5 moves to the next tray laying point, the movement is stopped, at this time, the subsequent seedling tray 90 enters the tray laying device 5 under the conveying of the round belt 11, the tray laying device 5 continues to lay the seedling tray 90 at the position, after the seedling tray 90 at the position is laid, the tray laying device 5 continues to move to the next tray laying point, the above steps are repeated until the tray laying device 5 moves to the limit position of the end point end of the stand 4, the state of the movable shaft 22 at the position is just opposite to the starting point position, at this time, the length of the plane of the conveying belt at the end point end of the stand 4 reaches the maximum state, meanwhile, 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 clip type movable shaft storage structure at the tail end of the support guide rail 21. When the palletizing device 5 completes palletizing work, the palletizing device 5 starts to return to the starting point of the frame 4.
2. Tray paving device
Referring to fig. 1-15, the tray laying device 5 includes a tray laying frame 51, a tray laying mechanism 52 disposed in the tray laying frame 51, and a travelling mechanism 53 for driving the tray laying frame 51 to move, where the tray laying mechanism 52 includes two sets of support members and a lifting mechanism for driving the support members to move circularly in a vertical direction, the two sets of support members are symmetrically disposed in the tray laying frame 51, each set of support members includes a plurality of vertically arranged clamping bars 521, and the clamping bars 521 in the two sets of support members correspond to each other one by one; the lifting mechanism is used for driving a plurality of clamping bars 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 arranged on the chain 522; two sides of the seedling tray entering the tray paving 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 tray laying frame 51, the clamping strips 521 at the two sides are separated from the seedling tray.
Referring to fig. 1-15, the number of the chains 522 is two, the two groups of chains 522 are symmetrically arranged left and right, each group of chains 522 is two, and the two chains 522 are arranged front and back; two ends of the clamping strip 521 are respectively arranged on two chains 522 of the same group; correspondingly, the lifting driving mechanism comprises a driving sprocket 523, a driven sprocket 524 and a lifting power mechanism for driving the driving sprocket 523 to rotate, wherein the driving sprocket 523 and the driven sprocket 524 are four groups, and four chains 522 are correspondingly arranged; the driving sprocket 523 is arranged above the tray laying frame 51, the driven sprocket 524 is arranged below the tray laying frame 51, and the chain 522 is looped on the driving sprocket 523 and the driven sprocket 524; the two driving chain wheels 523 and the two driven chain wheels 524 of the same group are respectively connected through a driving transmission shaft 525 and a driven transmission shaft 526; the lifting power mechanism is used for driving the two groups of driving transmission shafts 525 to reversely rotate.
Through the arrangement, the automatic seedling tray feeding device conveys the seedling tray to the tray inlet of the tray laying frame 51, and the lifting driving mechanism drives the two groups of chains 522 to circularly rotate, so that two opposite clamping strips 521 (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 uppermost position, the automatic seedling tray feeding device feeds the seedling tray into the tray laying 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 on two sides to rotate, so that two clamping strips 521 containing the seedling tray move downwards to the other two oppositely arranged clamping strips 521 to be circularly conveyed into the material receiving station; by repeating the above steps, the seedling trays 90 can be stored in the clamping bars 521. When a tray is required to be paved, the lifting driving mechanism drives the chain 522 to rotate, when the clamping strips 521 rotate from the vertical section to the circular arc section of the chain 522, the distance between the two opposite clamping strips 521 is increased, and when the distance is increased to a certain degree, the two sides of the seedling tray 90 positioned at the lowest position are separated from the clamping strips 521 positioned below the seedling tray 90, so that the seedling tray 90 horizontally falls from the tray outlet, and the tray paving work is completed.
In addition, in the present embodiment, the lifting power mechanism includes a lifting motor 527, the lifting motor 527 is mounted on the tray laying frame 51, a main shaft of the lifting motor 527 is connected with one set of driving transmission shafts 525 through a chain transmission mechanism 528, the main shaft of the lifting motor 527 is connected with the other set of driving transmission shafts 525 through a chain transmission mechanism 529, the gear transmission mechanism 54 includes a driven gear disposed on the driving transmission shafts 525 and a driving gear rotatably connected on the tray laying frame 51 through a rotating shaft, wherein two ends of the chain transmission mechanism 529 are respectively connected with the main shaft of the lifting motor 527 and the rotating shaft. Through the arrangement, the chains 522 on two sides can synchronously and reversely rotate under the drive 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 gravity, the lifting motor 527 drives to control the height of the seedling tray 90 and further control the laying tray, so that the lifting motor 527 requires very little power and is driven by a single lifting motor 527, so that the two groups 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 clamping strip 521 can bear heavy objects without local torsion of the chains 522, the device is simple to control, and the failure rate is low.
Referring to fig. 1-15, the tray laying mechanism 52 further includes a guiding mechanism for preventing the chains 522 from twisting during movement, where the guiding mechanism includes two guide rails 55 disposed on the left and right sides of the tray laying frame 51, and two guide rails 55 on each side correspond to the two chains 522 on the same side of the tray laying frame 51; the guide rail 55 is mounted in the tray deck 51, a guide groove extending vertically is provided in the guide rail 55, and a vertical section (i.e., a working section) of the chain 522 adjacent to the clamping bar 521 is located in the guide groove. Through the above 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 moves vertically, the guide groove can prevent the vertical section (working section) of the chain 522 from twisting or shaking.
Referring to fig. 1-15, the tray laying mechanism 52 further includes a limiting mechanism for limiting the seedling tray that moves up and down, where the limiting mechanism includes two sets of tray guide plates 56 and tray baffle plates 57, the tray guide plates 56 on two sides are respectively located on the left and right sides of the tray laying frame 51, two tray guide plates 56 in each set are provided, and the two tray guide plates 56 are disposed on the front and rear sides of the tray laying frame 51; two tray guide plates 56 on the left side and the right side of the tray laying frame 51 are in one-to-one correspondence; wherein the tray guide 56 is mounted on the tray deck 51 and extends obliquely inward from top to bottom; the tray discharging baffles 57 are two, and the two tray discharging 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 barrier 57 is mounted on the tray deck 51 and extends obliquely inward from top to bottom; wherein the spacing between the bottommost portions of the two opposing tray guides 56 is equal to the width of the seedling tray 90, and the spacing between the bottommost portions of the two opposing tray barriers 57 is equal to the length of the seedling tray 90; the tray guide 56 and the tray baffle 57 form a rectangular cone structure from top to bottom, so that the seedling tray 90 gradually approaches the center of the tray laying frame 51 and keeps horizontal all the time during the descending process.
Through setting up the dish baffle 56 with the dish baffle 57 makes dish baffle 56 with the dish baffle 57 constitutes top-down's rectangle awl structure, not only can realize limiting the left and right direction and the fore-and-aft direction of seedling dish like this, but also can realize guiding seedling dish 90 to correct the position of this seedling dish 90, make seedling dish 90 can follow smoothly spread the dish mouth level below the dish frame 51 and drop down, accomplish and spread the dish work.
Referring to fig. 1-15, the travelling mechanism 53 includes two travelling wheel sets and a travelling driving mechanism for driving the travelling wheel sets to rotate, where the two travelling wheel sets are located at front and rear sides of the tray laying frame 51, each travelling wheel set includes two travelling wheels 531 and a transmission shaft 532 for connecting the two travelling wheels 531, where the transmission shaft 532 is mounted on the tray laying frame 51, and two ends of the transmission shaft 532 extend horizontally out of the tray laying frame 51 and are connected with the two travelling wheels 531; the travelling driving mechanism comprises a travelling motor 533, the travelling motor 533 is arranged on the tray laying frame 51, and a main shaft of the travelling driving mechanism is connected with a transmission shaft 532 in one group of travelling wheel sets through a synchronous belt transmission mechanism or a gear transmission mechanism; the travelling wheels 531 are matched with the paved conveying guide rails 6. The travelling motor 533 drives the transmission shaft 532 to rotate, so as to drive the tray paving frame 51 to move on the conveying guide rail 55, and drive the tray paving device 5 to move to each tray paving point to complete tray paving work.
Referring to fig. 1-15, the tray paving mechanism 52 further includes two tensioning mechanisms for adjusting the tensioning degrees of the two sets of chains 522, wherein the two tensioning mechanisms are respectively used for adjusting the tensioning degrees of the two sets of chains 522, each set of tensioning mechanisms includes two tensioning sprockets 58 and a connecting rod 59 for connecting the two tensioning sprockets 58, 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 of the same set of chains 522; the tray deck 51 is provided with an adjustment groove at a position corresponding to the connection rod 59, and the extending direction of the adjustment groove is perpendicular to the encircling direction of the chain 522, i.e., the horizontal direction. By providing the above arrangement, the tensioning degree of the chain 522 can be adjusted by adjusting the horizontal position of the connecting rod 59 to adjust the position of the tensioning sprocket 58, for example, the connecting rod 59 moves inward so that the contact area of the tensioning sprocket 58 with the chain 522 decreases, the chain 522 becomes loose, and when the connecting rod 59 moves outward so that the contact area of the tensioning sprocket 58 with the chain 522 increases, the chain 522 can be tensioned, and in addition, the contact point of the tensioning sprocket 58 with the chain 522 must be a non-working section in the chain 522, that is, a vertical section in the chain 522 away from the seedling tray 90.
Referring to fig. 1-15, the length of the clamping strip 521 is shorter than that of the seedling tray 90, and a buffer stroke exists in the second seedling tray 90 after the previous seedling tray 90 descends in the continuous tray laying process, so that the circulation interval of the clamping strip 521 can be entered, which is beneficial to reducing the failure rate in the continuous tray laying process; the clamping strip 521 comprises a steel frame 5211 and a steel wheel 5212, wherein the steel frame 5211 consists of two steel bars; the number of steel wheels 5212 is plural, the 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 respectively rotatably connected/fixed on two steel bars; one side of the steel frame 5211 is located in the space between the two guide rails 55 of the same group, and the other side of the steel frame 5211 extends inwards to form the space.
Referring to fig. 1-15, the tray laying device 5 is further provided with a round belt driving mechanism for driving the round belt 11 to move, the round belt driving mechanism comprises a driving motor 9 installed on the tray laying frame 51, and the driving motor 9 is connected with a driving shaft 13 at one side of the driving motor through a chain transmission mechanism 10 or a gear transmission mechanism, so that the round belt 11 is driven to move, and the seedling tray 90 is conveyed.
Referring to fig. 1-15, the lower ends of the left side and the right side of the tray laying frame 51 are provided with two guide wheels 8, and the two guide wheels 8 on each side 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 tray laying device 5 is guided.
Referring to fig. 1 to 15, the laying device 5 operates on the principle that:
before the seedling tray is conveyed to the tray inlet of the tray laying frame 51 by the seedling tray automatic feeding device, the lifting driving mechanism drives the two groups of chains 522 to circularly rotate, so that two opposite clamping strips 521 (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 uppermost side, the seedling tray 90 is conveyed into the tray laying frame 51 from the tray inlet by the seedling tray automatic feeding device, 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 strips 521 containing the seedling tray 90 move downwards by one layer, and the other two oppositely arranged clamping strips 521 are circularly conveyed into the material receiving station; by repeating the above steps, the seedling trays 90 can be stored in the pairs of clamping bars 521 respectively; when a tray is required to be paved, the lifting driving mechanism drives the chain 522 to rotate, when the clamping strips 521 rotate from the vertical section to the circular arc section of the chain 522, the distance between the two opposite clamping strips 521 is increased, and when the distance is increased to a certain degree, the two sides of the seedling tray 90 positioned at the lowest position are separated from the clamping strips 521 positioned below the seedling tray 90, so that the seedling tray 90 horizontally falls from the tray outlet, and the tray paving work is completed.
When the seedling tray 90 descends from the tray inlet to the tray outlet, the tray guide plate 56 and the tray baffle 57 form a rectangular cone structure from top to bottom, so that not only the left-right direction and the front-back direction of the seedling tray 90 can be limited, but also 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 tray laying work is completed.
In addition, in the above process, the tray laying device 5 may lay trays while receiving trays, and vertically and circularly rotate through the chain 522, so that the seedling trays 90 on each pair of clamping strips 521 are conveyed to the tray outlet of the tray laying frame 51, and meanwhile, the pair of clamping strips 521 arrive at the tray receiving station; the conveying mechanism 1 in the automatic seedling tray feeding device continuously conveys the seedling tray 90 into the tray inlet of the tray paving frame 51, enters a tray receiving station and then falls onto two clamping strips 521 which are oppositely arranged; the tray laying device 5 can simultaneously finish tray receiving work at the same time of tray laying.
The foregoing is illustrative of the present invention, and is not to be construed as limiting thereof, but rather as merely providing for the purpose of teaching herein before described various modifications, alternatives, variations and alternatives, as well as variations and alternatives, without departing from the spirit and principles of the invention.
Claims (9)
1. An automatic field laying device for a rice seedling tray is characterized by comprising a tray laying device and an automatic seedling tray feeding device, wherein,
the seedling tray automatic feeding device is used for automatically conveying the seedling tray into the tray paving device;
the tray laying device comprises a tray laying frame, a tray laying mechanism arranged in the tray laying frame and a travelling mechanism for driving the tray laying frame to move, wherein the tray laying mechanism comprises supporting pieces and a lifting mechanism for driving the supporting pieces to circularly move in the vertical direction, the two supporting pieces are respectively and symmetrically arranged in the tray laying frame, each supporting piece comprises a plurality of vertically arranged clamping strips, and the clamping strips in the two 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 arranged on the chain; two sides of a seedling tray entering the tray paving 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 tray laying frame, the clamping strips at the two sides do reverse circular motion to be separated from the seedling tray;
The automatic seedling tray feeding device comprises a conveying mechanism, a supporting mechanism and a flange mechanism, wherein the conveying mechanism is arranged on a rack and used for conveying seedling trays, the supporting mechanism is used for supporting the conveying mechanism, and the flange mechanism is used for preventing the seedling trays from deviating; the tray paving device is movably arranged in the frame and moves along the length direction of the frame; wherein,
the support mechanism comprises two support guide rails symmetrically arranged on the frame, a movable shaft assembly arranged on the support guide rails and an outer ring support assembly, wherein the movable shaft assembly comprises a plurality of movable shafts which can be unfolded or contracted on the support guide rails;
the conveying mechanism comprises two circular belts, driving pulleys arranged on two sides of the tray paving frame and pulley assemblies symmetrically arranged on two ends of the frame; 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 at one side of the tray paving frame, the middle section extends along the length direction of the frame after coming out of the driving belt wheel at the side, and is arranged outside the frame after being turned for multiple times through a pulley assembly, and is conveyed to the other end of the frame under the guidance of the outer ring supporting assembly, and then is wound back onto the driving belt wheel at the other end of the tray paving frame again through a pulley block at the other end of the frame, so that the circular belts form a closed loop structure capable of avoiding the moving track of the tray paving device in space; two circular belts form a conveying belt plane for conveying seedling trays on the front side and the rear side of the tray laying frame; the disc laying device is also provided with a circular belt driving mechanism for driving the circular belt to move.
2. The automatic field laying device for rice seedling trays according to claim 1, wherein the number of the chains is two, the two groups of the chains are symmetrically arranged left and right, each group of the chains is two, and the two chains are arranged back and forth; two ends of the clamping strip are respectively arranged on two chains in the same group; correspondingly, the lifting driving mechanism comprises a driving sprocket, a driven sprocket and a lifting power mechanism for driving the driving sprocket to rotate, wherein the driving sprocket and the driven sprocket are four groups, and four chains are correspondingly arranged; the driving chain wheel is arranged above the tray laying frame, the driven chain wheel is arranged below the tray laying frame, and the chain surrounds the driving chain wheel and the driven chain wheel; the two driving chain wheels of the same group are respectively connected with the two driven chain wheels of the same group through a driving transmission shaft and a driven transmission shaft; the lifting power mechanism is used for driving the two groups of driving transmission shafts to reversely rotate.
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 motion, the limiting mechanism comprises two groups of tray guide plates and tray guide plates, the tray guide plates on two sides are respectively positioned on the left side and the right side of the tray laying frame, each group of tray guide plates is two, and the two tray guide plates are arranged on the front side and the rear side of the tray laying frame; two tray guide plates on the left side and the right side of the tray laying frame are in one-to-one correspondence; wherein, the tray guide plate is arranged on the tray laying frame and extends inwards from top to bottom in an inclined manner; the two disc placing baffles are respectively positioned in the middle of the front side and the rear side of the disc laying frame and are symmetrically arranged; the tray baffle is arranged on the tray laying frame and extends inwards from top to bottom in an inclined manner; wherein, the interval between the bottommost parts of two opposite tray guiding plates is equal to the width of the seedling tray, and the interval between the bottommost parts of two opposite tray guiding plates is equal to the length of the seedling tray; the disc placing guide plate and the disc placing baffle plate form a rectangular cone structure from top to bottom.
4. The automatic rice seedling tray field laying device according to claim 3, wherein the tray laying mechanism further comprises a guide mechanism for preventing the chains from twisting in the moving process, wherein the guide mechanism comprises two guide rails arranged on the left side and the right side of the tray laying frame, and two guide rails on each side correspond to two chains on the same side of the tray laying frame; the guide rail is arranged on the inner side of the tray guide plate, a guide groove extending vertically is formed in the guide rail, and a vertical section, close to the middle of the tray laying frame, of the chains on two sides is located in the guide groove.
5. The automatic rice seedling tray 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 at the front side and the rear side of the tray laying frame, each travelling wheel set comprises two travelling wheels and a transmission shaft for connecting the two travelling wheels, the transmission shaft is arranged on the tray laying frame, and the left end and the right end of the transmission shaft extend out of the tray laying frame horizontally and are connected with the two travelling wheels; the travelling driving mechanism comprises a travelling motor which is arranged on the tray laying frame, and a main shaft of the travelling motor is connected with a transmission shaft in one group of travelling wheel sets through a synchronous belt transmission mechanism or a gear transmission mechanism; the travelling wheel is matched with a conveying guide rail arranged on the frame and used for realizing the movement of the tray laying frame on the conveying guide rail.
6. The automatic rice seedling tray field laying device according to claim 4, wherein the tray laying mechanism further comprises two tensioning mechanisms for adjusting the tensioning degree of two groups of chains, the two tensioning mechanisms are respectively used for adjusting the tensioning degree of the two groups of chains, each group of tensioning mechanisms 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 of the same group of chains; the tray laying frame 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 encircling direction of the chain.
7. The automatic rice seedling tray field laying device according to 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, and the steel frame consists of two steel bars; the steel wheels are arranged along the length direction of the steel frame, and two ends of each steel wheel are respectively connected/fixed on two steel bars in a rotating way; one side of the steel frame is positioned in the 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 according to claim 1, wherein 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 tray laying 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 frame; the middle section of each flange belt is bent and detoured in a trapezoid under the action of four flange rotors on the same side of the tray laying frame; the flange fixing frames are symmetrically arranged at two ends of the frame, and slotted holes for penetrating through the flange belts are formed in the flange fixing frames; both ends of the flange band are arranged on the slotted holes of the flange fixing frame.
9. The automatic rice seedling tray field laying device according to claim 8, wherein the steering wheel group comprises two first steering wheels arranged above the frame, two second steering wheels arranged below the two first steering wheels, and two roll shafts for respectively connecting the two first steering wheels; the tensioning wheel set comprises a tensioning wheel and a wheel frame fixed on four corners of the outer side of the frame, and the wheel frame is provided with slotted holes; the middle section of the circular belt extends along the length direction of the frame after coming out of the driving belt wheel, and rotates downwards by 90 degrees after reaching the first steering wheel, rotates outwards by 90 degrees after reaching the second steering wheel, and continues to rotate outwards by 90 degrees after reaching the tensioning wheel, so that the middle section is parallel to the length direction of the frame; the middle section of the circular belt extends to the tensioning wheel at the other side of the frame along the length direction of the frame, and sequentially bypasses the second steering wheel, the first steering wheel and the driving belt wheel at the other side to form a closed-loop structure.
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| Application Number | Priority Date | Filing Date | Title |
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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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| Application Number | Priority Date | Filing Date | Title |
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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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| CN115462258A CN115462258A (en) | 2022-12-13 |
| CN115462258B true CN115462258B (en) | 2023-11-07 |
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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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| 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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