CN104872102A - Spraying machine - Google Patents

Spraying machine Download PDF

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Publication number
CN104872102A
CN104872102A CN201510323294.6A CN201510323294A CN104872102A CN 104872102 A CN104872102 A CN 104872102A CN 201510323294 A CN201510323294 A CN 201510323294A CN 104872102 A CN104872102 A CN 104872102A
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China
Prior art keywords
frame
spray
hinged
widen
spray boom
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CN201510323294.6A
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Chinese (zh)
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CN104872102B (en
Inventor
王志红
颜伏伍
袁守利
吴锦标
张飞
彭辅明
刘云
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Wuhan University of Technology WUT
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Wuhan University of Technology WUT
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Priority to CN201510323294.6A priority Critical patent/CN104872102B/en
Publication of CN104872102A publication Critical patent/CN104872102A/en
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Publication of CN104872102B publication Critical patent/CN104872102B/en
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Abstract

The invention relates to a spraying machine. The spraying machine comprises a cab, a cab lifting device, a variable-tread assembly, a chassis power system, a spraying frame lifting device, a spraying rod assembly, a pesticide box assembly, a wheel assembly and a whole machine hydraulic system, wherein the cab lifting device comprises upper cab parallel rods, cab lifting cylinders, transverse cab stabilizing rods, a fixed cab lifting frame, lower cab parallel rods and a movable cab lifting frame; the upper cab parallel rods and the lower cab parallel rods are equal in length, one end of each parallel rod is hinged to the fixed cab lifting frame, and the other end of each parallel rod is hinged to the movable cab lifting frame; one end of each cab lifting cylinder is hinged to the corresponding upper cab parallel rod, the other end is hinged to the fixed cab lifting frame, and a cab is lifted and lowered under the telescopic action of the cylinders. The spraying machine adopts a hydraulic self-propelling manner, the tread can be adjusted to adapt to ridging spaces of different crops, large-area pesticide application can be performed, the height of a spraying rod can be adjusted according to crop height change, and flexible steering is realized.

Description

A kind of spraying machine
Technical field
The present invention relates to agricultural vehicle field, more particularly, relate to a kind of spraying machine.
Background technology
In recent years, due to the adjustment of agricultural planting structure and scale, add that northern area Plain is more makes large-area proportion of crop planting start to popularize, and north mostly be the long-stalked crop such as corn, Chinese sorghum, all need to spray insecticide in each growth period of crop, traditional artificial spray technique is because spraying area is limited, cannot meet the demands to shortcomings such as human health, and the research and development of spraying machine are very necessary.The spraying machine had in the market mostly is towed, road clearance is little, and wheelspan adjustment cannot be carried out for the row spacing of Different Crop, the too much phenomenon of pressure seedling exists when spraying medicine to the bad adaptability of crop growth height, and the sprayer developed involves great expense, be not suitable for China's national situation abroad.
Summary of the invention
The technical problem to be solved in the present invention is, provide a kind of wheelspan adjustable with the row spacing adapting to Different Crop, large area dispenser can be carried out, can adjust spray boom height for the height change of crop and turn to boom sprayer flexibly.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of spraying machine, comprises driver's cabin, cab lift device, flexible wheel base assembly, chassis dynamical system, sprays frame elevator, spray boom assembly, medicine-chest assembly, wheel set, car load hydraulic system;
Described cab lift device comprises parallel bar and cab lift movable stand under driver's cabin upper control arm, cab lift oil cylinder, driver's cabin QS, cab lift fixed mount, driver's cabin, cab lift movable stand is welded on driver's cabin, and cab lift fixed mount is welded on the front portion of flexible wheel base assembly; Under driver's cabin upper control arm and driver's cabin, parallel bar is two isometric bars, its one end and cab lift fixed mount hinged, the other end and cab lift movable stand hinged, form parallelogram sturcutre; Cab lift oil cylinder one end and driver's cabin upper control arm hinged, the other end and cab lift fixed mount hinged, cab lift is made by the telescopic action of oil cylinder, driver's cabin keeps level with ground all the time in lifting process, between two driver's cabin upper control arms and under two driver's cabins, be welded with QS respectively between parallel bar.
In such scheme, described flexible wheel base assembly comprises to be widened outer square tube, widen inner panel, widens interior square tube, widens baffle plate and widen oil cylinder, described inner panel of widening is arranged on by bolt that to widen outer square tube inner, described widen interior square tube be enclosed within described in widen interior intralamellar part, outer square tube is widened inner described in described one end of widening interior square tube is positioned at, the other end is fixedly connected with described baffle plate of widening, described baffle plate of widening is connected with the vehicle frame arranging wheel, described one end of widening oil cylinder with to widen outer square tube hinged, the other end with widen panel hinge.
In such scheme, described inner panel of widening comprises and widens inner panel, widen lower inner panel and widen apodema, describedly widen inner panel, widen lower inner panel and widen apodema and widen outer square tube by adjusting bolt and lock-nut be fixedly connected with described, described adjusting bolt and lock-nut is adjustable widens inner panel and widen the gap between interior square tube, thus ensure when because of widen wearing and tearing make to widen inner panel and widen gap change between interior square tube large time by adjusting bolt and lock-nut adjustment.
In such scheme, chassis dynamical system comprises engine, hydraulic oil container, water pump, cooling fan, spray boom bracket, vehicle frame rear support, vehicle frame front support, frame cross and frame chassis, engine, hydraulic oil container, water pump and cooling fan are installed in frame chassis, frame chassis is welded on to be widened in outer square tube, frame cross by bolt with widen interior square tube and be connected, vehicle frame rear support and vehicle frame front support are all fixed in frame cross, and spray boom bracket is fixed in frame cross.
In such scheme, described sprinkling frame elevator comprises parallel bar, spray lance lifting oil cylinder and spray lance lifting fixed mount under spray boom upper control arm, spray lance lifting movable stand, spray boom QS, spray boom, under spray boom upper control arm and spray boom, parallel bar is two isometric bars, its one end and spray lance lifting fixed mount hinged, the other end and spray lance lifting movable stand hinged, form parallelogram sturcutre; Spray lance lifting oil cylinder one end and spray boom upper control arm hinged, the other end and spray lance lifting fixed mount hinged, between two spray boom upper control arms and under two spray booms, be welded with spray boom QS respectively between parallel bar.
In such scheme, spray boom assembly comprises vehicle frame fixed frame, spray boom central frame, the first folding ram, switching spray frame, steel cable oil cylinder, steel cable, the first spray frame, the second spray frame, support, end fold mechanism, the 3rd spray frame, end spray frame, keeps away barrier rebounding mechanism, middle part fold mechanism, position-limit mechanism, trapezoidal brace, balance adjustment bar, rubber blanket, limited block; End fold mechanism comprises end folding ram, stop collar, oil cylinder pull bar, the first pull bar, the second pull bar; Keep away barrier rebounding mechanism and comprise rotating shaft, spring retainer axle, spring, groove block, hold-down nut and circular shaft; Position-limit mechanism comprises lower limit axle, limiting plate, upper limit axle and friction inner panel; Balance adjustment bar comprises adjusting rod, lock-nut, inner screw sheath, adjusting rod and lower dolly bar;
Vehicle frame fixed frame and spray lance lifting movable stand weld together and by spraying frame elevator and vehicle frame links together, trapezoidal brace one end and vehicle frame fixed frame hinged, the other end and spray boom central frame hinged, balance adjustment bar one end and vehicle frame fixed frame hinged, the other end and spray boom central frame hinged, balance adjustment bar can regulate length by adjusting rod, thus ensure that spray boom and ground keep level, inner screw sheath two ends are processed with internal thread and rotation direction is contrary, upper adjusting rod and lower dolly bar are processed with external screw thread respectively and rotation direction is contrary, lock-nut locking is used when the length adjustment of balance adjustment bar completes, by vehicle frame fixed frame, spray boom central frame, trapezoidal brace and balance adjusting rod form isosceles trapezoidal structure,
Limiting plate and spray boom central frame weld together, upper limit axle and lower limit axle is separately installed with at the upper and lower two ends of limiting plate, the friction inner panel with self-lubricating effect is installed at the inner side screw thread of limiting plate, vehicle frame fixed frame between two limit shafts, thus can only swing when spray boom central frame swings between two limit shafts;
Spray boom central frame and switching frame articulation, first folding ram one end and spray boom central frame hinged, the other end with switching frame articulation, by the telescopic action of the first folding ram, switching framework can rotate around pin joint, thus realizes the vertical folding of switching framework; First spray frame and switching frame articulation, steel cable oil cylinder one end is connected with steel cable, the other end and switching frame articulation, and the other end and first of steel cable sprays frame and is connected, and the first spray frame can be made to rotate around pin joint by the telescopic action of steel cable oil cylinder;
Rubber blanket is arranged on the first spray frame, and limited block is arranged on switching framework, and when the first spray frame turns to certain position around pin joint, rubber blanket will collide with limited block, thus the rotary spacing to the first spray frame;
Support installing, on the second spray frame, is placed on support when the 3rd spray frame and end spray frame fold;
Spray boom end is provided with keeps away barrier rebounding mechanism, and the feature of rising be rotating shaft is inclined, and groove block is inlayed with circular shaft and is connected.
In such scheme, medicine-chest assembly comprises filtered water tank, medicine-chest, medicine-chest bracket, medicine-chest fixed support and diesel fuel tanks, wherein medicine-chest comprises discharge outlet, liquid level gauge mouth and support fixing port, medicine-chest is symmetrically arranged, be placed on medicine-chest bracket, medicine-chest bracket is fixed in vehicle frame front support and vehicle frame rear support, filtered water tank and diesel fuel tanks are placed on medicine-chest, wherein medicine-chest narrowing toward each end broad in the middle, large little below above, be trapezoidal bottom medicine-chest, liquid level gauge mouth is provided with at medicine-chest outer surface, medicine-chest outer surface has some support fixing ports, medicine-chest fixed support to embed in support fixing port and is arranged on medicine-chest bracket by bolt, in vehicle frame front support and vehicle frame rear support.
In such scheme, wheel set comprises wheel, reductor, shunt, shell along separate routes, installation frame, hydraulic motor, shock-absorbing support, damper and motor cover, reductor is arranged on wheel, hydraulic motor is arranged on reductor, installation frame is arranged on reductor, rotated by fluid motor-driven reductor, reductor drives vehicle wheel rotation, shunt is arranged on installation frame, shell is arranged on shunt along separate routes, installation frame is provided with motor cover, wheel is also provided with damping device, shock-absorbing support one end and installation frame hinged, damper one end and shock-absorbing support hinged, the other end and installation frame hinged.
In such scheme, hydraulic system comprises hydraulic travel system, and it comprises duplex plunger pump, flow divider, damping hole, the near front wheel motor, left rear wheel motor, off-front wheel motor, the off hind wheel motor of engine, fuel tank and composition closed circuit; Described duplex plunger pump is plate variable plunger pump, the flow of plate variable plunger pump is directly proportional to driving rotating speed and discharge capacity, the flow of pump and the direction of pressure oil is changed by the angle of control and regulation variable pump swash plate, thus change rotating speed and the direction of rotation of motor, realize travel speed and regulate; When running at high speed, the hydraulic oil that duplex plunger pump produces high pressure enters the near front wheel motor and off-front wheel motor, and the low pressure oil that the near front wheel motor and off-front wheel motor export comes back to duplex plunger pump, forms a closed cycle; When running at a low speed, the high pressure liquid force feed that duplex plunger pump produces is divided into two-way hydraulic oil by flow divider, and a road directly enters the near front wheel motor, and normally open solenoid valve of leading up in addition enters off hind wheel motor, finally gather and get back to duplex plunger pump, form closed cycle; When two wheels occur that speed is inconsistent in the process of moving, adopt damping hole to realize two speed autobalances, realize differential; When travelling at a slow speed, it is consistent that monolateral employing synchronous valve controls front and back wheel speed.
In such scheme, hydraulic system also comprises back work system, and it back work pump comprising composition closed circuit widens oil cylinder, hoist cylinder, spray boom folding ram, steering cylinder and pump motor.
Implement spraying machine of the present invention, there is following beneficial effect:
1, adopting full hydraulic drive, is self-propelled machinery, without the need to tractor with regard to wheeled.
2, driver's cabin can realize descending operation, is adjustable to differing heights to the crops driver's cabin of differing heights, can be made when driver's cabin is raised to the highest still above wheel by the inclined design of main support, alleviates driver's rolling innervation in motion; The most cab heights of sprayer had now is non-adjustable when causing spray medicine, and driver's cabin, all the time at highest point, is unfavorable for stability and the driving comfort of car load.
3, wheelspan adjusting range is 2.1m-2.7m, can carry out stepless changing for the plantation row spacing of Different Crop, prevents from pressing seedling during spray medicine.
4, adopt four-wheel independence damping device, car load is stronger to the adaptability of landform, is conducive to the comfortableness improving integeral vehicle life and driver; Wheel is provided with shunt and can effectively divides seedling to prevent from rolling during spray medicine.
5, medicine-chest is symmetrical, up big and down small, narrowing toward each end broad in the middle, effectively can separate crops, improves spraying efficiency.
6, spray boom height highly can adjust accordingly according to crops, ensures that the distance between shower nozzle and crops is suitable for, ensures atomization quality.
7, spray boom is provided with balanced controls, and can make sprayer at field road traveling constantly, spray boom remains level; Spray boom is provided with position-limit mechanism, and the amplitude of fluctuation of spray boom can be made to be unlikely to excessive; Spray boom is provided with stay cord and is connected with oil cylinder and makes spray boom can realize monolateral expansion, normally can spray medicine and ensure spray medicine quality under various orographic condition; Spray boom both sides can turn an angle up or down around set pin joint, make spray boom have certain upwards degree of freedom when shaking, and prevent spray boom from bearing excessive moment of flexure because Uneven road produces vibrations; Spray boom end is provided with keeps away the folding also automatic reset mechanism of barrier, can available protecting spray boom.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of spraying machine of the present invention;
Fig. 2 is the structural representation of cab lift device;
Fig. 3 is the axonometric drawing of flexible wheel base assembly;
Fig. 4 is the front view of flexible wheel base assembly;
Fig. 5 is the radial cross-section of flexible wheel base assembly;
Fig. 6 is the axial cutaway view of flexible wheel base assembly;
Fig. 7 is the front view of spray boom assembly;
Fig. 8 is the vertical view of spray boom assembly;
Fig. 9 is the schematic diagram of fold mechanism;
Figure 10 is the schematic diagram of position-limit mechanism;
Figure 11 keeps away barrier rebounding mechanism schematic diagram;
Figure 12 is balance adjustment bar cutaway view;
Figure 13 is limited block enlarged diagram;
Figure 14 is the front view of medicine-chest assembly;
Figure 15 is the vertical view of medicine-chest assembly;
Figure 16 is the end view of medicine-chest assembly;
Figure 17 is the axonometric drawing of wheel set;
Figure 18 is the cutaway view of wheel set;
Figure 19 is the schematic diagram of hydraulic travel system;
Figure 20 is the schematic diagram of back work system.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As shown in Figure 1, sprayer of the present invention comprises driver's cabin 1, cab lift device 2, flexible wheel base assembly 3, chassis dynamical system 4, sprays frame elevator 5, spray boom assembly 6, medicine-chest assembly 7, wheel set 8, car load hydraulic system.
As shown in Figure 2, cab lift device comprises parallel bar 205 and cab lift movable stand 206 under driver's cabin upper control arm 201, cab lift oil cylinder 202, driver's cabin QS 203, cab lift fixed mount 204, driver's cabin.Wherein cab lift movable stand 206 is welded on the rear portion of driver's cabin 1, connects firmly with driver's cabin 1; Cab lift fixed mount 204 is welded on the front portion of flexible wheel base assembly 3; Under driver's cabin upper control arm 201 and driver's cabin, parallel bar 205 is two isometric bars, its one end and cab lift fixed mount 204 hinged, the other end and cab lift movable stand 206 hinged, form parallelogram sturcutre; Wherein cab lift oil cylinder 202 one end and driver's cabin upper control arm 201 hinged, the other end and cab lift fixed mount 204 hinged, cab lift is made by the telescopic action of oil cylinder, driver's cabin keeps level with ground all the time in lifting process, in order to alleviate the transverse direction vibration of driver's cabin 1 in lifting process, between two driver's cabin upper control arms 201 and under two driver's cabins, be welded with QS 203 respectively between parallel bar 205, thus improve the comfortableness of driver in lifting process.
As shown in figures 3 to 6, flexible wheel base assembly 3 comprises lubricator cup 301, widen outer square tube 302, adjusting bolt 303, lock-nut 304, widen interior square tube 305, widen baffle plate 306, widen door 307, widen oil cylinder 308, widen lower inner panel 309, widen inner panel 310 and widen apodema 311, wherein widen interior square tube 305 and be enclosed within that to widen outer square tube 302 inner, centre separates by widening inner panel, widening inner panel is MC nylon material, have screwed hole widening in outer square tube 302, do not penetrate groove widening side plate has, widen inner panel to be pressed in by adjusting bolt 303 and to widen in interior square tube 305, often relative displacement is had owing to widening interior square tube 305 and widening inner panel, there are wearing and tearing between the two, because long-term use is widening inner panel and the gap of widening between interior square tube 305 can increase, therefore need to come adjusting play by adjusting bolt 303, again by lock-nut 304 locking, widen on upper inner panel 310 because gravity is all pressed in, so it is maximum with the wearing and tearing of widen interior square tube 305, therefore inner panel is widened the thickest, on widening, inner panel 310 has lubrication groove and hydraulic fluid port, correspondingly in outer square tube 302 have screwed hole widening, lubricator cup 301 can be installed, widen interior plate and be fixed on that to widen outer square tube 302 inner by the door 307 of widening at two ends, widen interior square tube 305 one end and be positioned at that to widen outer square tube 302 inner, the other end with widen baffle plate 306 and weld, and widen baffle plate 306 by bolt and vehicle frame and be fixed together, vehicle frame and wheel link together, widen oil cylinder 308 one end and widen outer square tube 302 hinged, the other end is with to widen baffle plate 306 hinged, flexiblely widen interior square tube 305 along with what widen oil cylinder 308 and will move widening in outer square tube 302, thus wheelspan is increased or reduces, and this process is stepless change, thus the row spacing of different crops can be adapted to.
Chassis dynamical system 4 comprises engine 401, hydraulic oil container 402, water pump 403, cooling fan 404, spray boom bracket 405, vehicle frame rear support 406, vehicle frame front support 407, frame cross 408 and frame chassis 409.Wherein engine 401, hydraulic oil container 402, water pump 403 and cooling fan 404 are installed in frame chassis 409, frame chassis is welded on to be widened in outer square tube 302, frame cross 408 by bolt with widen interior square tube 305 and be connected, vehicle frame rear support 406 and vehicle frame front support 407 are all fixed in frame cross 408, spray boom bracket 405 is fixed in frame cross 408, be placed on spray boom bracket 405 after spray boom is folding, because driver's cabin adopts parallelogram lifting mechanism, for ensureing that driver's cabin is positioned at above wheel instead of front at most Gao Shineng, therefore vehicle frame front support 407 is oblique-arm type, the rolling that can alleviate driver is like this dynamic, improve the comfortableness of driver, also can increase the space at medicine-chest place simultaneously, increase medicine-chest capacity, improve operating efficiency.
Spray frame elevator 5 and comprise parallel bar 504, spray lance lifting oil cylinder 505 and spray lance lifting fixed mount 506 under spray boom upper control arm 501, spray lance lifting movable stand 502, spray boom QS 503, spray boom, working method is the same with cab lift device 2, repeats no more herein.
As shown in Fig. 7-Figure 13, spray boom assembly 6 comprises vehicle frame fixed frame 601, spray boom central frame 602, first folding ram 603, switching spray frame 604, steel cable oil cylinder 605, steel cable 606, first spray frame 607, second spray frame 608, support 609, end fold mechanism 610, the 3rd spray frame 611, end spray frame 612, keeps away barrier rebounding mechanism 613, middle part fold mechanism 614, position-limit mechanism 616, trapezoidal brace 617, balance adjustment bar 618, rubber blanket 620, limited block 621.Wherein end fold mechanism 610 comprises end folding ram 6101, stop collar 6102, oil cylinder pull bar 6103, first pull bar 6104, second pull bar 6105;
Keep away barrier rebounding mechanism 613 and comprise rotating shaft 6131, spring retainer axle 6132, spring 6133, groove block 6134, hold-down nut 6135 and circular shaft 6136; Position-limit mechanism 616 comprises lower limit axle 6161, limiting plate 6162, upper limit axle 6163 and friction inner panel 6164; Balance adjustment bar 618 comprises adjusting rod 6181, lock-nut 6182, inner screw sheath 6183, adjusting rod 6184 and lower dolly bar 6185.
Vehicle frame fixed frame 601 and spray lance lifting movable stand 502 weld together and link together with vehicle frame by spraying frame elevator 5, trapezoidal brace 617 one end and vehicle frame fixed frame 601 hinged, the other end and spray boom central frame 602 hinged, balance adjustment bar 618 one end and vehicle frame fixed frame 601 hinged, the other end and spray boom central frame 602 hinged, wherein balance adjustment bar 618 can regulate length by adjusting rod 6184, thus can ensure that spray boom and ground maintenance level are (because due to mismachining tolerance, the barycenter of spray boom assembly may not between two parties), inner screw sheath 6183 two ends are processed with internal thread and rotation direction is contrary, upper adjusting rod 6181 and lower dolly bar 6185 is processed with external screw thread respectively and rotation direction is contrary, lock-nut 6182 locking can be used when the length adjustment of balance adjustment bar 618 completes.When sprayer works because the uneven vehicle frame that causes in road surface, field operationally swings constantly, but spray boom need keep level with ground when spraying medicine, form isosceles trapezoidal structure by vehicle frame fixed frame 601, spray boom central frame 602, trapezoidal brace 617 and balance adjusting rod 618, thus spray boom remains level when vehicle frame swings; When spray boom launch and shrink time and monolateral expansion time can produce vibration, in order to limit the amplitude of fluctuation of spray boom, ad hoc limited location mechanism 616, in position-limit mechanism 616, limiting plate 6162 and spray boom central frame 602 weld together, upper limit axle 6163 and lower limit axle 6161 is separately installed with at limiting plate about 6162 two ends, the friction inner panel 6164 with self-lubricating effect is installed at the inner side screw thread of limiting plate 6162, vehicle frame fixed frame 601 between two limit shafts, thus can only swing when spray boom central frame 602 swings between two limit shafts.Spray boom central frame 602 is hinged with switching framework 604, first folding ram 603 one end and spray boom central frame 602 hinged, the other end is hinged with switching framework 604, by the telescopic action of the first folding ram 603, switching framework 604 can rotate around pin joint 619, thus realizes the vertical folding of switching framework 604, first spray frame 607 is hinged with switching framework 604, steel cable oil cylinder 605 one end is connected with steel cable 606, the other end is hinged with switching framework 604, the other end and first of steel cable sprays frame 607 and is connected, the first spray frame 607 can be made to rotate around pin joint 615 by the telescopic action of steel cable oil cylinder 605, when the monolateral expansion of spray boom, the center of gravity of spray boom must offset, this is the level needing to be kept by the extension of steel cable oil cylinder 605 or compression spray boom, therefore steel cable oil cylinder 605 also has the effect of auxiliary balance, in addition, due to sprayer operation on rough road surface, field of being everlasting, spray boom can have the vibrations in vertical direction, therefore pin joint 615 makes spray boom assembly both sides upwards to rotate, prevent spray boom from bearing excessive moment of flexure, can available protecting spray boom, because need to be placed on vehicle frame after spray boom is folding, therefore rubber blanket 620 and limited block 621 is also provided with, rubber blanket 620 is arranged on the first spray frame 607, limited block 621 is arranged on switching framework 604, when the first spray frame 607 turns to certain position around pin joint 615, rubber blanket 620 will collide with limited block 621, thus the rotary spacing to the first spray frame 607.Support 609 is arranged on the second spray frame 608, will be placed on support 609 after the 3rd spray frame 611 and end spray frame 612 fold.End fold mechanism 610 is identical with middle part fold mechanism 614 structure, the 3rd spray frame 611 and end spray frame 612 is made to realize folding at vertical plane unlike end fold mechanism 610, and middle part fold mechanism 614 makes the second spray frame 608 fold in the horizontal direction, be unlikely to too wide after spray boom can be made so folding at three sections, be conveniently placed on vehicle frame.Spray boom end is provided with keeps away barrier rebounding mechanism 613, the feature of rising is rotating shaft 6131 is inclined, and groove block 6134 is inlayed with circular shaft 6136 and is connected, a displacement is upwards had by rotating the frame 612 of end spray simultaneously around rotating shaft 6131 when barrier encountered by end spray frame 612, spring 6133 is compressed, because rotating shaft 6131 is oblique, therefore generation restoring force makes end spray frame 612 self-aligning after rotating by end spray frame 612 under gravity, spring 6133 also can relax impact simultaneously, alleviates vibrations.
As shown in Figure 14-Figure 16, medicine-chest assembly 7 comprises filtered water tank 701, medicine-chest 702, medicine-chest bracket 703, medicine-chest fixed support 704 and diesel fuel tanks 705, wherein medicine-chest 702 comprises discharge outlet 7021, liquid level gauge mouth 7022 and support fixing port 7023, medicine-chest 702 is symmetrically arranged, be placed on medicine-chest bracket 703, medicine-chest bracket 703 is fixed in vehicle frame front support 407 and vehicle frame rear support 406, filtered water tank 701 and diesel fuel tanks 705 are placed on medicine-chest 702, wherein medicine-chest 702 narrowing toward each end broad in the middle, certain point seedling effect can be had, large little below above, the liquid of bottom is convenient to blot only, in order to dirt be got rid of from discharge outlet 7021 when cleaning as far as possible, it is stepped designs bottom medicine-chest 702, such dirt will concentrate near discharge outlet 7021, be convenient to discharge, for the ease of the change of observation liquid level, liquid level gauge mouth 7022 is provided with at medicine-chest 702 outer surface, in addition medicine-chest outer surface has some grooves, for support fixing port 7023, medicine-chest fixed support 704 to embed in support fixing port 7023 and is arranged on medicine-chest bracket 703 by bolt, in vehicle frame front support 407 and vehicle frame rear support 406, thus medicine-chest is fixed.
As Figure 17, shown in Figure 18, wheel set 8 comprises wheel 801, reductor 802, shunt 803, shell 804 along separate routes, installation frame 805, hydraulic motor 806, shock-absorbing support 807, damper 808 and motor cover 809, wherein reductor 802 is arranged on wheel 801, hydraulic motor 806 is arranged on reductor 802, installation frame 805 is arranged on reductor 802, reductor 802 is driven to rotate by hydraulic motor 806, reductor 802 drives wheel 801 to rotate, in order to avoid wheel rolls crop, ad hoc have shunt 803, be arranged on installation frame 805, shell 804 is arranged on shunt 803 along separate routes, shell is provided with three row's installing holes along separate routes, suitable height can be arranged on as required, for protection hydraulic motor 806, installation frame 805 is provided with motor cover 809, wheel is also provided with damping device, shock-absorbing support 807 one end and installation frame 805 hinged, damper 808 one end and shock-absorbing support 807 hinged, the other end and installation frame 805 hinged, thus wheel can be beated within the specific limits, road shocks can be relaxed.
Hydraulic system comprises hydraulic travel system and back work system.
As shown in figure 19, hydraulic travel system is made up of engine 901, duplex plunger pump 902, oil absorption filter 903, radiator 904, return filter 905, the near front wheel motor 906, left rear wheel motor, oil circuit board 907, normally open solenoid valve 908, normally closed battery valve 909, flow divider 910, check valve 911, oil circuit board 912, pressure switch 913, hand pump 914, hand-operated valve 915, damping hole 916, off-front wheel motor 917 and off hind wheel motor.
Duplex plunger pump 902 carries a slippage pump, is responsible for cold oil to cover in the pump housing, and duplex plunger pump 902 CD-ROM drive motor rotates, and realizes vehicle to run.Deep fat is derived by flushing valve, and flushing valve and pump housing emptying are lowered the temperature and oil return box after return filter 905 filtration through radiator 904 after cooling system cooling.Oil absorption filter 903 and return filter 905 ensure the clean of hydraulic oil.The duplex plunger pump 902 chosen is plate variable plunger pump, and the flow of plate variable plunger pump is directly proportional to driving rotating speed and discharge capacity, and can stepless variable.Change the flow of pump and the direction of pressure oil by the angle of control operation handle regulated variable pump swash plate, thus change rotating speed and the direction of rotation of motor, realize travel speed and regulate.The flow of variable pump changes can be added to maximum from zero with swash plate pivot angle.
Self-walking spraying trolley is at a high speed total and low speed two gears are available, when running at high speed, for left side wheel motion (left and right wheels motion is consistent), the hydraulic oil that duplex plunger pump 902 produces high pressure enters the near front wheel motor 906 by often opening battery valve a1, the low pressure oil that the near front wheel motor 906 exports comes back to duplex plunger pump 902, forms a closed cycle.When running at a low speed, for left side oil circuit (left and right oil circuit is consistent), the high pressure liquid force feed that duplex plunger pump 902 produces is divided into two-way hydraulic oil by flow divider 910, one tunnel directly enters the near front wheel motor 906, normally open solenoid valve a3 of leading up in addition enters off hind wheel motor, finally gather and get back to duplex plunger pump 902, form closed circuit.There is speed not for the moment in two wheels in the process of moving, adopts damping hole 916 to realize two speed autobalances, realize differential.
As shown in figure 20, back work system is by return filter 1001, radiator 1002, oil absorption filter 1003, 1004, back work pump 1005, oil circuit board 1006, magnetic valve 1007, check valve 1008, pressure valve 1009, magnetic valve 1010, flow pressure-gradient control valve 1011, solenoid directional control valve 1012, oil circuit board 1013, balanced valve 1014, widen oil cylinder 1015, oil circuit board 1016, battery valve 1017, one-way throttle valve 1018, hoist cylinder 1019, hoist cylinder 1020, oil circuit board 1021, spray boom folding ram 1022, steering gear 1023, turn to converter 1024, steering cylinder 1025, steering cylinder 1026, oil circuit board 1027, pump motor 1028 forms.
Back work system can realize the turning to of vehicle, the work of water pump, cab lift, spray lance lifting and folding, wheelspan and widen.
Hydraulic oil enters back work pump 1005 respectively by oil absorption filter 1003, oil absorption filter 1004, and back work pump 1005 is duplex gear pump.After hydraulic oil enters oil circuit board 1006, System Priority fuel feeding is to steering, and when hydraulic fluid pressure reaches preset value (steering does not need fluid), hydraulic oil just enters oil circuit board 1013, oil circuit board 1016, oil circuit board 1021.The hydraulic fluid flow rate maximum entering oil cylinder is arranged by flow pressure-gradient control valve 1011, and residual flow flows back to hydraulic oil container by bypass, and solenoid directional control valve 1012 controls the flexible of oil cylinder.One-way throttle valve 1018 can regulate the speed of driver's cabin and spray lance lifting.When needs turn to, steering wheel rotation, system pressure is made to be reduced to preset value rapidly, hydraulic oil enters steering gear, the rotation direction of steering wheel determines the opening and closing of steering gear 1023, realization turns to, and by controlling to turn to converter 1024 duty, vehicle can be made to switch in four-wheel steering and two-wheel steering (2 ws).The other part of back work pump 1005 hydraulic oil out enters oil circuit board 1027, rotarily drives pump working by pump motor 1028, and the rotating speed of pump motor 1028 determines the rotating speed of water pump.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.

Claims (10)

1. a spraying machine, is characterized in that, comprises driver's cabin, cab lift device, flexible wheel base assembly, chassis dynamical system, sprays frame elevator, spray boom assembly, medicine-chest assembly, wheel set, car load hydraulic system;
Described cab lift device comprises parallel bar and cab lift movable stand under driver's cabin upper control arm, cab lift oil cylinder, driver's cabin QS, cab lift fixed mount, driver's cabin, cab lift movable stand is welded on driver's cabin, and cab lift fixed mount is welded on the front portion of flexible wheel base assembly; Under driver's cabin upper control arm and driver's cabin, parallel bar is two isometric bars, its one end and cab lift fixed mount hinged, the other end and cab lift movable stand hinged, form parallelogram sturcutre; Cab lift oil cylinder one end and driver's cabin upper control arm hinged, the other end and cab lift fixed mount hinged, cab lift is made by the telescopic action of oil cylinder, driver's cabin keeps level with ground all the time in lifting process, between two driver's cabin upper control arms and under two driver's cabins, be welded with QS respectively between parallel bar.
2. spraying machine according to claim 1, it is characterized in that, described flexible wheel base assembly comprises to be widened outer square tube, widen inner panel, widens interior square tube, widens baffle plate and widen oil cylinder, described inner panel of widening is arranged on by bolt that to widen outer square tube inner, described widen interior square tube be enclosed within described in widen interior intralamellar part, outer square tube is widened inner described in described one end of widening interior square tube is positioned at, the other end is fixedly connected with described baffle plate of widening, described baffle plate of widening is connected with vehicle frame, described one end of widening oil cylinder with to widen outer square tube hinged, the other end with widen panel hinge.
3. spraying machine according to claim 2, it is characterized in that, described inner panel of widening comprises and widens inner panel, widen lower inner panel and widen apodema, describedly widen inner panel, widen lower inner panel and widen apodema and widen outer square tube by adjusting bolt and lock-nut be fixedly connected with described, described adjusting bolt and lock-nut is adjustable widens inner panel and widen the gap between interior square tube, thus ensure when because of widen wearing and tearing make to widen inner panel and widen gap change between interior square tube large time by adjusting bolt and lock-nut adjustment.
4. spraying machine according to claim 3, it is characterized in that, chassis dynamical system comprises engine, hydraulic oil container, water pump, cooling fan, spray boom bracket, vehicle frame rear support, vehicle frame front support, frame cross and frame chassis, engine, hydraulic oil container, water pump and cooling fan are installed in frame chassis, frame chassis is welded on to be widened in outer square tube, frame cross by bolt with widen interior square tube and be connected, vehicle frame rear support and vehicle frame front support are all fixed in frame cross, and spray boom bracket is fixed in frame cross.
5. spraying machine according to claim 4, it is characterized in that, described sprinkling frame elevator comprises parallel bar, spray lance lifting oil cylinder and spray lance lifting fixed mount under spray boom upper control arm, spray lance lifting movable stand, spray boom QS, spray boom, under spray boom upper control arm and spray boom, parallel bar is two isometric bars, its one end and spray lance lifting fixed mount hinged, the other end and spray lance lifting movable stand hinged, form parallelogram sturcutre; Spray lance lifting oil cylinder one end and spray boom upper control arm hinged, the other end and spray lance lifting fixed mount hinged, between two spray boom upper control arms and under two spray booms, be welded with spray boom QS respectively between parallel bar.
6. spraying machine according to claim 5, it is characterized in that, spray boom assembly comprises vehicle frame fixed frame, spray boom central frame, the first folding ram, switching spray frame, steel cable oil cylinder, steel cable, the first spray frame, the second spray frame, support, end fold mechanism, the 3rd spray frame, end spray frame, keeps away barrier rebounding mechanism, middle part fold mechanism, position-limit mechanism, trapezoidal brace, balance adjustment bar, rubber blanket, limited block; End fold mechanism comprises end folding ram, stop collar, oil cylinder pull bar, the first pull bar, the second pull bar; Keep away barrier rebounding mechanism and comprise rotating shaft, spring retainer axle, spring, groove block, hold-down nut and circular shaft; Position-limit mechanism comprises lower limit axle, limiting plate, upper limit axle and friction inner panel; Balance adjustment bar comprises adjusting rod, lock-nut, inner screw sheath, adjusting rod and lower dolly bar;
Vehicle frame fixed frame and spray lance lifting movable stand weld together and by spraying frame elevator and vehicle frame links together, trapezoidal brace one end and vehicle frame fixed frame hinged, the other end and spray boom central frame hinged, balance adjustment bar one end and vehicle frame fixed frame hinged, the other end and spray boom central frame hinged, balance adjustment bar can regulate length by adjusting rod, thus when ensureing that spray boom is installed and ground keeps level, inner screw sheath two ends are processed with internal thread and rotation direction is contrary, upper adjusting rod and lower dolly bar are processed with external screw thread respectively and rotation direction is contrary, lock-nut locking is used when the length adjustment of balance adjustment bar completes, by vehicle frame fixed frame, spray boom central frame, trapezoidal brace and balance adjusting rod form isosceles trapezoidal structure,
Limiting plate and spray boom central frame weld together, upper limit axle and lower limit axle is separately installed with at the upper and lower two ends of limiting plate, the friction inner panel with self-lubricating effect is installed at the inner side screw thread of limiting plate, vehicle frame fixed frame between two limit shafts, thus can only swing when spray boom central frame swings between two limit shafts;
Spray boom central frame and switching frame articulation, first folding ram one end and spray boom central frame hinged, the other end with switching frame articulation, by the telescopic action of the first folding ram, switching framework can rotate around pin joint, thus realizes the vertical folding of switching framework; First spray frame and switching frame articulation, steel cable oil cylinder one end is connected with steel cable, the other end and switching frame articulation, and the other end and first of steel cable sprays frame and is connected, and the first spray frame can be made to rotate around pin joint by the telescopic action of steel cable oil cylinder;
Rubber blanket is arranged on the first spray frame, and limited block is arranged on switching framework, and when the first spray frame turns to certain position around pin joint, rubber blanket will collide with limited block, thus the rotary spacing to the first spray frame;
Support installing, on the second spray frame, is placed on support when the 3rd spray frame and end spray frame fold;
Spray boom end is provided with keeps away barrier rebounding mechanism, and its feature is rotating shaft is inclined, and groove block is inlayed with circular shaft and is connected.
7. spraying machine according to claim 4, it is characterized in that, medicine-chest assembly comprises filtered water tank, medicine-chest, medicine-chest bracket, medicine-chest fixed support and diesel fuel tanks, wherein medicine-chest comprises discharge outlet, liquid level gauge mouth and support fixing port, medicine-chest is symmetrically arranged, be placed on medicine-chest bracket, medicine-chest bracket is fixed in vehicle frame front support and vehicle frame rear support, filtered water tank and diesel fuel tanks are placed on medicine-chest, wherein medicine-chest narrowing toward each end broad in the middle, large little below above, stairstepping bottom medicine-chest, liquid level gauge mouth is provided with at medicine-chest outer surface, medicine-chest outer surface has some support fixing ports, medicine-chest fixed support to embed in support fixing port and is arranged on medicine-chest bracket by bolt, in vehicle frame front support and vehicle frame rear support.
8. spraying machine according to claim 1, it is characterized in that, wheel set comprises wheel, reductor, shunt, shell along separate routes, installation frame, hydraulic motor, shock-absorbing support, damper and motor cover, reductor is arranged on wheel, hydraulic motor is arranged on reductor, installation frame is arranged on reductor, rotated by fluid motor-driven reductor, reductor drives vehicle wheel rotation, shunt is arranged on installation frame, shell is arranged on shunt along separate routes, installation frame is provided with motor cover, wheel is also provided with damping device, shock-absorbing support one end and installation frame hinged, damper one end and shock-absorbing support hinged, the other end and installation frame hinged.
9. spraying machine according to claim 1, it is characterized in that, hydraulic system comprises hydraulic travel system, and it comprises duplex plunger pump, flow divider, damping hole, the near front wheel motor, left rear wheel motor, off-front wheel motor, the off hind wheel motor of engine, fuel tank and composition closed circuit; Described duplex plunger pump is plate variable plunger pump, the flow of plate variable plunger pump is directly proportional to driving rotating speed and discharge capacity, the flow of pump and the direction of pressure oil is changed by the angle of control and regulation variable pump swash plate, thus change rotating speed and the direction of rotation of motor, realize travel speed and regulate; When running at high speed, the hydraulic oil that duplex plunger pump produces high pressure enters the near front wheel motor and off-front wheel motor, and the low pressure oil that the near front wheel motor and off-front wheel motor export comes back to duplex plunger pump, forms a closed cycle; When running at a low speed, the high pressure liquid force feed that duplex plunger pump produces is divided into two-way hydraulic oil by flow divider, and a road directly enters the near front wheel motor, and normally open solenoid valve of leading up in addition enters off hind wheel motor, finally gather and get back to duplex plunger pump, form closed cycle; When two wheels occur that speed is inconsistent in the process of moving, adopt damping hole to realize two speed autobalances, realize differential; When travelling at a slow speed, it is consistent that monolateral employing synchronous valve controls front and back wheel speed.
10. spraying machine according to claim 9, is characterized in that, hydraulic system also comprises back work system, and it back work pump comprising composition closed circuit widens oil cylinder, hoist cylinder, spray boom folding ram, steering cylinder and pump motor.
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CN105076102A (en) * 2015-09-14 2015-11-25 山东潍坊拖拉机厂集团有限公司 Self-walking type pesticide spraying machine
CN105284771A (en) * 2015-11-25 2016-02-03 酒泉奥凯种子机械股份有限公司 High ground clearance full hydraulic driving self-propelled corn tasseling, spraying and fertilizing integrated machine
CN105284769A (en) * 2015-11-20 2016-02-03 杭州电子科技大学 Agricultural pesticide spraying vehicle
CN105475261A (en) * 2016-01-16 2016-04-13 湖北荆江农机有限公司 Hydraulic transmission boom sprayer
CN105660578A (en) * 2016-04-11 2016-06-15 富锦市立兴植保机械制造有限公司 Automatic balance vibration reduction liftable spraying frame
CN105850956A (en) * 2016-04-19 2016-08-17 武汉理工大学 Full-hydraulic drive paddy and upland field dual-purpose small spray machine with spray rods
CN105875571A (en) * 2016-04-21 2016-08-24 湖南农业大学 High ground clearance and variable wheel distance and axle distance type plant protection machine and wheel rim transmission system of plant protection machine
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CN105994228A (en) * 2016-05-13 2016-10-12 孙立民 Self-propelled pesticide spraying vehicle
CN106110354A (en) * 2016-08-09 2016-11-16 山东凤祥股份有限公司 A kind of sterilizing machine for hen house bedding and padding and sterilization method
CN106106417A (en) * 2016-08-24 2016-11-16 宿松县华峰农机服务专业合作社 A kind of modified model spraying machine being applied to knob
CN106135179A (en) * 2016-08-25 2016-11-23 南通黄海药械有限公司 One spray booms growing cotton special pesticide applicator
CN106577611A (en) * 2016-12-16 2017-04-26 新疆农垦科学院 Pesticide application machine for high-stem crops
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CN107347853A (en) * 2017-08-18 2017-11-17 南通黄海药械有限公司 A kind of special pesticide applicator of cotton for dragging spray apparatus and the application device
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CN107950515A (en) * 2018-01-13 2018-04-24 安徽智泉农业科技有限公司 A kind of plant protection spraying machine running gear
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CN109329254A (en) * 2018-11-30 2019-02-15 河南农业大学 A kind of band-like composite plant high-clearance boom sprayer
CN109430214A (en) * 2018-11-20 2019-03-08 界首市佳祺农业开发有限公司 A kind of adjustable type pesticide spraying mechanism of Multifunctional garden pesticide-spraying cart
CN109663689A (en) * 2019-02-28 2019-04-23 山东农业工程学院 A kind of scalable humidifier for spray truck
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CN110959594A (en) * 2019-10-31 2020-04-07 农业农村部南京农业机械化研究所 High-clearance boom sprayer boom arm balance control device and control method thereof
CN111789091A (en) * 2019-04-09 2020-10-20 杨晓艳 All-dimensional swing arm type orchard pesticide sprayer
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CN114868724A (en) * 2022-05-27 2022-08-09 陕西省林业科学院 Liftable spraying machine for preventing and treating forestry pests

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CN105076102A (en) * 2015-09-14 2015-11-25 山东潍坊拖拉机厂集团有限公司 Self-walking type pesticide spraying machine
CN105284769A (en) * 2015-11-20 2016-02-03 杭州电子科技大学 Agricultural pesticide spraying vehicle
CN105284771A (en) * 2015-11-25 2016-02-03 酒泉奥凯种子机械股份有限公司 High ground clearance full hydraulic driving self-propelled corn tasseling, spraying and fertilizing integrated machine
CN105475261A (en) * 2016-01-16 2016-04-13 湖北荆江农机有限公司 Hydraulic transmission boom sprayer
CN105660578A (en) * 2016-04-11 2016-06-15 富锦市立兴植保机械制造有限公司 Automatic balance vibration reduction liftable spraying frame
CN105850956A (en) * 2016-04-19 2016-08-17 武汉理工大学 Full-hydraulic drive paddy and upland field dual-purpose small spray machine with spray rods
CN105875571A (en) * 2016-04-21 2016-08-24 湖南农业大学 High ground clearance and variable wheel distance and axle distance type plant protection machine and wheel rim transmission system of plant protection machine
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CN105994228A (en) * 2016-05-13 2016-10-12 孙立民 Self-propelled pesticide spraying vehicle
CN105994228B (en) * 2016-05-13 2019-05-03 烟台知兴知识产权咨询服务有限公司 Self-walking spraying trolley
CN105900964A (en) * 2016-05-20 2016-08-31 王金德 Self-propelled plant protection machine
CN106110354A (en) * 2016-08-09 2016-11-16 山东凤祥股份有限公司 A kind of sterilizing machine for hen house bedding and padding and sterilization method
CN106110354B (en) * 2016-08-09 2019-05-28 山东凤祥股份有限公司 A kind of sterilizing machine and sterilization method for henhouse padding
CN106106417A (en) * 2016-08-24 2016-11-16 宿松县华峰农机服务专业合作社 A kind of modified model spraying machine being applied to knob
CN106135179A (en) * 2016-08-25 2016-11-23 南通黄海药械有限公司 One spray booms growing cotton special pesticide applicator
CN106577611A (en) * 2016-12-16 2017-04-26 新疆农垦科学院 Pesticide application machine for high-stem crops
CN106665540A (en) * 2017-03-26 2017-05-17 合肥多加农业科技有限公司 Plant protection robot
CN107047511A (en) * 2017-04-12 2017-08-18 柳州凡科技有限公司 It is a kind of to be used for the pesticide spraying device that agricultural is administered
CN107128364A (en) * 2017-04-28 2017-09-05 周文翔 A kind of chassis with four-wheel drive and four-wheel steering function
CN107347853A (en) * 2017-08-18 2017-11-17 南通黄海药械有限公司 A kind of special pesticide applicator of cotton for dragging spray apparatus and the application device
CN107646820A (en) * 2017-10-20 2018-02-02 公主岭市华玺农业机械制造有限公司 A kind of self-walking spraying trolley
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CN108221951A (en) * 2018-03-16 2018-06-29 宁夏大学 Crawler type curing agent sprayer apparatus
CN108848879A (en) * 2018-08-04 2018-11-23 铜陵汇宇实业有限公司 A kind of high-order Support bracket for unloading grain tube
CN109221063A (en) * 2018-10-11 2019-01-18 甘肃鼎鑫农业科技有限公司 A kind of hydraulic control chemical spraying device
CN109315378A (en) * 2018-10-16 2019-02-12 埃森农机常州有限公司 The dynamic mixed intelligent fog machine of the more rotor fuels of single-track
CN109122646A (en) * 2018-10-31 2019-01-04 湖南农业大学 A kind of double leveling electronic fog machines of high-clearance of vehicle frame spray boom based on vertical lift
CN109122646B (en) * 2018-10-31 2023-08-22 湖南农业大学 Frame spray lance double leveling high ground clearance electric plant protection machine based on vertical lift
CN109430214A (en) * 2018-11-20 2019-03-08 界首市佳祺农业开发有限公司 A kind of adjustable type pesticide spraying mechanism of Multifunctional garden pesticide-spraying cart
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CN109329254A (en) * 2018-11-30 2019-02-15 河南农业大学 A kind of band-like composite plant high-clearance boom sprayer
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CN109663689B (en) * 2019-02-28 2020-10-16 山东农业工程学院 A scalable spraying mechanism for spraying car
CN109663689A (en) * 2019-02-28 2019-04-23 山东农业工程学院 A kind of scalable humidifier for spray truck
CN111789091A (en) * 2019-04-09 2020-10-20 杨晓艳 All-dimensional swing arm type orchard pesticide sprayer
CN110435892B (en) * 2019-07-22 2022-03-11 北京中航智科技有限公司 Sprinkler and unmanned aerial vehicle
CN110435892A (en) * 2019-07-22 2019-11-12 北京中航智科技有限公司 A kind of flusher and unmanned plane
CN110959594B (en) * 2019-10-31 2021-07-30 农业农村部南京农业机械化研究所 High-clearance boom sprayer boom arm balance control device and control method thereof
CN110959594A (en) * 2019-10-31 2020-04-07 农业农村部南京农业机械化研究所 High-clearance boom sprayer boom arm balance control device and control method thereof
CN111937839A (en) * 2020-08-29 2020-11-17 刘月英 Portable medicine machine that spouts
CN111937839B (en) * 2020-08-29 2022-07-01 徐州市康农消毒技术研究院有限公司 Portable medicine machine that spouts
CN114365732B (en) * 2022-02-09 2023-04-07 冯磊 A laxative machine for gardens forestry
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CN114868724A (en) * 2022-05-27 2022-08-09 陕西省林业科学院 Liftable spraying machine for preventing and treating forestry pests
CN114868724B (en) * 2022-05-27 2023-08-04 陕西省林业科学院 Liftable forestry pest control sprayer

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