Allium fistulosum harvesting operation all-in-one machine

Abstract

The invention discloses a green Chinese onion harvesting operation all-in-one machine. The green Chinese onion harvesting operation all-in-one machine comprises a movable chassis, a composite green Chinese onion digging device, a queue conveying device, a lying device and a reciprocating spreading and boxing device, wherein the queue conveying device is used for pulling up green Chinese onions and enabling the green Chinese onions to be obliquely and upwards conveyed in a queue; the lying device is used for accelerating stumbling of the conveyed green Chinese onions; the queue conveying device comprises a conveying assembly connected to the movable chassis, and the conveying assembly comprises two first conveying belts used for clamping and conveying the stems of the fistular onion. The lying-down device comprises a tripping assembly and an accelerating assembly which are connected to the movable chassis, and the accelerating assembly comprises two second conveying belts used for clamping and conveying the stems of the fistular onion; and the reciprocating spreading and boxing device comprises a box body for receiving the accelerated stumbled green Chinese onions and a cylindrical cam reciprocating translation assembly which is connected to the movable chassis and is used for driving the box body to translate along the green Chinese onion spreading direction. According to the green Chinese onion harvester, green Chinese onions are automatically dug, pulled up and conveyed, and then the green Chinese onions are automatically in a horizontal lying posture and laid in the box body, so that the green Chinese onion harvesting efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural machinery, and in particular relates to an all-in-one machine for harvesting green onions. Background Art

[0002] Currently, onion harvesting in my country is still primarily done manually, but this results in low production efficiency and high labor intensity. Furthermore, onion stems are relatively brittle, easily leading to quality issues such as stem breakage and root residue. Since harvesting quality directly impacts the final quality of onions, manual labor cannot meet the demands of onion industrialization, hindering the rapid development of my country's onion industry. Therefore, the quality of onion harvesting is crucial to the overall quality of the entire process and the development of the industry.

[0003] To improve production efficiency and reduce labor intensity, some green onion harvesting processes are now mechanically operated. For example, patent publication number CN221381799U discloses a soil-digging device for green onion harvesting. This device uses comb-like soil-digging claws to penetrate the roots of the green onions and vigorously shake them to dig out the onions. However, the strong shaking can cause the green onions to scatter and fall to the ground, ultimately requiring manual collection into containers. Furthermore, patent publication number CN107912121A discloses a lightweight onion digging machine and its operating method. While this device provides a digging solution, it does not address the issue of packaging the onions after harvesting. Summary of the Invention

[0004] In order to overcome the defects of the prior art, the present invention provides an all-in-one green onion harvesting machine, which can improve the green onion harvesting efficiency.

[0005] The object of the present invention is achieved through the following technical solutions: In a first aspect, a green onion harvesting machine is provided, which includes a movable chassis, a composite green onion digging device, a queue conveying and lying device, and a reciprocating material spreading and boxing device; The composite onion digging device includes a bowl-shaped rotary blade digging assembly for digging up the soil on the ridge surface and a double-cone spiral and fishback shovel digging assembly for loosening the soil on both sides of the ridge and separating the onion roots from the soil. The composite onion digging device is connected to a movable chassis. The queue conveying and lying device includes a queue conveying device for pulling up the green onions and making them tilted upward to convey them in a queue, and a lying device connected in series with the queue conveying device for accelerating and tripping the conveyed green onions; the queue conveying device includes a conveying assembly connected to a movable chassis, a synchronous reverse driving device and a parallelogram tensioning device, the conveying assembly includes two first conveyor belts for clamping and conveying the green onion stems, the two first conveyor belts run synchronously and rotate in opposite directions; the lying device includes a stumbling assembly and an accelerating assembly connected to the movable chassis, the accelerating assembly includes two second conveyor belts for clamping and conveying the green onion stems, the two second conveyor belts run synchronously and rotate in opposite directions, the second conveyor belts are connected in series with the queue conveying device and the conveying speed is greater than the conveying speed of the first conveyor belt, wherein when the green onion roots move to the stumbling assembly, the green onion stems are clamped and conveyed by the two second conveyor belts; The reciprocating material paving and boxing device comprises a box body for catching the onions that are tripped by acceleration and a cylindrical cam reciprocating translation component connected to a movable chassis and used for driving the box body to reciprocate and translate along the onion paving direction.

[0006] Furthermore, the movable chassis includes a frame assembly, a steering wheel assembly, and a driving wheel assembly, the frame assembly including a first frame and a second frame obliquely connected to the first frame, the steering wheel assembly including a rear wheel rotatably connected to the lower end of the first frame and a first driving mechanism fixed to the first frame and used to drive the rear wheel to steer, and the driving wheel assembly including two front wheels coaxially rotatably connected to the lower end of the second frame and a second driving mechanism for driving the two front wheels to rotate; The double-cone screw and fishback shovel soil-scraping assembly, the queue conveying device, the lying device and the reciprocating paving and boxing device are all connected to the first frame; The bowl-shaped rotary blade soil-scraping assembly is coaxially fixedly connected to the inner sides of the two front wheels.

[0007] Furthermore, the synchronous reverse drive device includes two first driving wheels rotatably connected to the first frame, a fourth driving mechanism fixedly connected to the first frame and used to drive the two first driving wheels to rotate, and a first driven wheel rotatably connected to the first frame, the first conveyor belt is wound around the first driving wheel and the first driven wheel, and the output end of the fourth driving mechanism is transmission-connected to the two first driving wheels.

[0008] Furthermore, the synchronous reverse drive device includes a first transmission shaft, two first chain transmission mechanisms, two first bevel gear transmission mechanisms and two belt transmission mechanisms. The fourth drive mechanism is a rotation drive mechanism and its output end is connected to one end of the first transmission shaft and the input end of a first bevel gear transmission mechanism through a first chain transmission mechanism, and the other end of the first transmission shaft is connected to the input end of another first bevel gear transmission mechanism through another first chain transmission mechanism; the output ends of the two first bevel gear transmission mechanisms are respectively connected to the two first driving wheels through two belt transmission mechanisms.

[0009] Furthermore, the acceleration assembly includes two second driving wheels coaxially fixedly connected to the two first driving wheels and two second driven wheels rotatably connected to the first frame, the tooth top circle diameter of the second driving wheel is larger than the tooth top circle diameter of the first driving wheel, and the second conveyor belt is wound around the second driving wheel and the second driven wheel.

[0010] Furthermore, the parallelogram tensioning device includes a first support frame fixedly connected to the first frame, a mounting frame located on the side of the first support frame close to the first conveyor belt, and a plurality of support plates. The first support frame, the mounting frame and any two support plates constitute a parallelogram structure. The length direction of the first support frame matches the conveying direction of the first conveyor belt. The mounting frame is connected to a plurality of tensioning wheels for tensioning the first conveyor belt along the length direction. One end of the support plate is hinged to the mounting frame. The first support frame is provided with a lockable linear moving pair along the length direction. The other end of the support plate is hinged to the moving end of the linear moving pair; the second driven wheel is rotatably connected to the mounting frame.

[0011] Furthermore, the tripping assembly includes a second support frame fixedly connected to the first frame and a roller shaft rotatably connected to the second support frame, and the axis of the roller shaft is horizontal and perpendicular to the conveying direction of the first conveyor belt.

[0012] Furthermore, the cylindrical cam reciprocating translation assembly includes a third support frame fixedly connected to the first frame, a first lead screw rotatably connected to the third support frame, a fifth driving mechanism fixedly connected to the third support frame and used to drive the first lead screw to rotate, and a light rod fixedly connected to the third support frame. The length direction of the first lead screw matches the length direction of the light rod. The output end of the fifth driving mechanism is transmission-connected to one end of the first lead screw, a first lead screw nut is threadedly connected to the first lead screw, and the upper end of the first lead screw nut is fixedly connected to a sliding table for slidingly connecting the light rod, and the upper end of the sliding table is fixedly connected to the box.

[0013] Furthermore, the fifth drive mechanism is a rotation drive mechanism, and the cylindrical cam reciprocating translation assembly includes a third driving wheel fixedly connected to the output end of the fifth drive mechanism and a third driven wheel fixedly connected to one end of the first lead screw, and a synchronous belt is wound around the third driving wheel and the third driven wheel; the cylindrical cam reciprocating translation assembly includes a composite sleeve connected to the third support frame and used to tension the synchronous belt.

[0014] Furthermore, the steering wheel assembly includes a worm gear reducer, the first drive mechanism is a rotation drive mechanism and its output end is connected to the rear wheel through the worm gear reducer; and / or The driving wheel assembly includes two second chain transmission mechanisms and two tension adjusters for adjusting the tension of the two second chain transmission mechanisms respectively, the second driving mechanism is a rotation driving mechanism and its output end is connected to the two front wheels respectively through the two second chain transmission mechanisms; and / or The outer sides of the two front wheels are coaxially fixedly connected to two gripping cyclone wheels; and / or The bowl-shaped rotary blade earthmoving assembly comprises two bowl-shaped rotary blades coaxially fixedly connected to the inner sides of the two front wheels; and / or The double-cone spiral and fishback shovel earth-moving assembly includes two spiral cones rotatably connected to the first frame and two sixth drive mechanisms fixedly connected to the first frame and respectively used to drive the two spiral cones to rotate. The two spiral cones gradually approach each other from top to bottom and the lower ends are respectively rotatably connected to the two ends of the fishback shovel.

[0015] The beneficial effects of the present invention are: When the movable chassis moves along the ridge, the bowl-shaped rotary blade soil-scraping assembly can dig up the soil on the ridge surface, and the double-cone spiral and fishback shovel soil-scraping assembly can loosen the soil on both sides of the ridge and separate the onion roots from the soil. The composite onion digging device can not only "dig" the onions, but also keep the onions upright, so as to create conditions for subsequent onion pulling and queue transmission; and the onion stems can enter between the two first conveyor belts, and the two first conveyor belts can automatically pull up the onions; and the two first conveyor belts can convey the onions obliquely upward, so that the onion stems enter between the two second conveyor belts, and the two second conveyor belts can cooperate with the tripping assembly to accelerate the onion tripping, so as to The green onions are converted into a horizontal lying posture, and the cylindrical cam reciprocating translation component can drive the box to translate along the green onion paving direction, so that the green onions can automatically assume a horizontal lying posture and be automatically laid flat in the box; in summary, the green onion harvesting operation all-in-one machine can improve the green onion harvesting efficiency; in addition, in the queue conveying device, the parallelogram tensioning device enables multiple tensioning wheels to synchronously translate and tension the first conveyor belt, and the synchronous reverse drive device can divide the same power source into two transmission paths to realize the synchronous reverse rotation of the two symmetrical first conveyor belts, which is more reliable than realizing the synchronous reverse rotation by two power sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein: Figure 1 An axonometric view of the present invention is shown; Figure 2 Shows a schematic structural diagram of the present invention; Figure 3 Shows a schematic structural diagram of the movable chassis in the present invention; Figure 4 Shows a schematic structural diagram of the drive wheel assembly of the present invention; Figure 5 Shows a schematic structural diagram of the steering wheel assembly of the present invention; Figure 6 A schematic diagram showing the internal structure of the steering wheel assembly of the present invention is shown; Figure 7 Shows a schematic structural diagram of the bowl-shaped rotary cutter of the present invention; Figure 8 The schematic diagram of the structure of the double-cone spiral and fishback blade soil-scraping assembly of the present invention is shown; Figure 9 Shows a schematic structural diagram of the queue parallelogram tensioning device of the present invention; Figure 10 Shows a schematic structural diagram of the synchronous reverse drive device of the present invention; Figure 11 shows a schematic structural diagram of the tripping assembly of the present invention; Figure 12 Shows a schematic diagram of the installation of the cylindrical cam reciprocating translation assembly of the present invention; Figure 13 Shows a schematic structural diagram of the cylindrical cam reciprocating translation assembly of the present invention; Figure 14 The schematic diagram of the working of the double-cone spiral and fishback blade soil-scraping assembly of the present invention is shown; Figure 15 A schematic diagram showing the operation of the bowl-shaped rotary blade scraper assembly and the first conveyor belt of the present invention is shown; Figure 16 A schematic diagram showing the working of the bowl-shaped rotary blade scraper assembly and the first conveyor belt from another perspective of the present invention; Figure 17 A schematic diagram showing the operation of the tripping assembly of the present invention is shown; In the drawings, like reference numerals are used for like parts, but the drawings are not necessarily true to scale.

[0017] Reference numerals: 100, movable chassis; 110, drive wheel assembly; 111, front wheel; 112, tension adjuster; 113, second chain drive mechanism; 114, second drive mechanism; 115, second drive shaft; 116, third drive shaft; 117, gripping cyclone wheel; 120, frame assembly; 121, first frame; 122, second frame; 130, steering wheel assembly; 131, first drive mechanism; 132, rear wheel; 133, worm gear reduction Device; 200, composite onion digging device; 210, bowl-shaped rotary cutter; 211, bowl-shaped outer wall; 212, blade; 220, double-cone spiral and fishback shovel soil-scraping assembly; 221, sixth drive mechanism; 222, spiral cone; 223, horizontal axis; 224, fishback shovel; 300, queue conveyor; 310, conveyor assembly; 311, first conveyor belt; 320, parallelogram tensioning device; 321, first support frame; 322, mounting frame; 3 23. Support plate; 324. Tensioning pulley; 325. Linear motion pair; 330. Synchronous reverse drive device; 331. Belt transmission mechanism; 332. First driving pulley; 333. First driven pulley; 334. Fourth driving mechanism; 335. First transmission shaft; 336. First chain transmission mechanism; 337. First bevel gear transmission mechanism; 400. Lying device; 410. Acceleration assembly; 411. Second driven pulley; 412. Second conveyor belt; 41 3. Second driving wheel; 420. Tripping assembly; 421. Second supporting frame; 422. Roller shaft; 500. Reciprocating material spreading and boxing device; 510. Box body; 520. Reciprocating translation assembly of cylindrical cam; 521. Third supporting frame; 522. Fifth driving mechanism; 523. Third driving wheel; 524. Synchronous belt; 525. Third driven wheel; 526. First lead screw; 527. Polished rod; 528. First lead screw nut; 529. Sliding table. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] The present invention provides an all-in-one machine for harvesting green onions. Figure 1 、 Figure 2 and Figure 9 As shown, it includes a movable chassis 100, a composite onion digging device 200 for digging onions, a queue conveying device 300 for pulling up the onions and conveying them in a queue at an angle upward, a lying device 400 connected in series with the queue conveying device 300 for accelerating the onions being conveyed, and a reciprocating paving and boxing device 500 for paving the onions that have been accelerated. The composite onion digging device 200 includes a bowl-shaped rotary blade digging assembly for digging away the soil on the ridge surface and a double-cone spiral and fishback shovel digging assembly 220 for loosening the soil on both sides of the ridge and separating the onion roots from the soil. The composite onion digging device 200 is connected to the movable chassis 100. The queue conveying device 300 includes a conveying assembly 310 connected to the movable chassis 100. The conveying assembly 310 includes two first conveyor belts 311 symmetrically arranged for clamping and conveying the scallion stems. The two first conveyor belts 311 run synchronously and rotate in opposite directions. The lying device 400 includes a tripping assembly 420 and an acceleration assembly 410 connected to the movable chassis 100. The acceleration assembly 410 includes two second conveyor belts 412 for pinching and conveying the green onion stems. The two second conveyor belts 412 run synchronously and rotate in opposite directions. The second conveyor belts 412 are connected in series with the queue conveying device 300 and have a conveying speed greater than that of the first conveyor belt 311. When the green onion roots move to the tripping assembly 420, the green onion stems are pinched and conveyed by the two second conveyor belts 412. The reciprocating material spreading and boxing device 500 includes a box body 510 for catching the onions that are tripped by acceleration and a cylindrical cam reciprocating translation assembly 520 connected to the movable chassis 100 and used to drive the box body 510 to translate along the onion spreading direction.

[0020] It can be understood that, when the movable chassis 100 moves along the ridge, the bowl-shaped rotary blade plowing assembly can plow the soil on the surface of the ridge, and the double-cone spiral and fishback shovel plowing assembly 220 can loosen the soil on both sides of the ridge and separate the roots of the green onions from the soil. The composite onion digging device 200 can not only "dig" the green onions, but also keep the green onions upright, so as to create conditions for subsequent onion pulling and queue transmission; and the green onion stems can enter between the two first conveyor belts 311, and the two first conveyor belts 311 can automatically pull up the green onions; and the two first conveyor belts 311 can convey the green onions obliquely upward, so that the green onion stems enter between the two second conveyor belts 412, and the two second conveyor belts 412 can cooperate with the tripping assembly 420 to accelerate the tripping of the green onions The onions are turned upside down so as to be converted into a horizontal lying posture, and the cylindrical cam reciprocating translation component 520 can drive the box body 510 to translate along the onion laying direction, so that the onions can automatically assume a horizontal lying posture and be automatically laid flat in the box body 510; in summary, the onion harvesting operation all-in-one machine can improve the onion harvesting efficiency; in addition, in the queue conveying device 300, the parallelogram tensioning device 320 enables multiple tensioning wheels 324 to synchronously translate and tension the first conveyor belt 311, and the synchronous reverse driving device 330 can transmit the same power source in two ways to realize the synchronous reverse rotation of the two symmetrical first conveyor belts 311, which is more reliable than realizing synchronous reverse rotation with two power sources.

[0021] In one embodiment, Figure 1-4As shown, the movable chassis 100 includes a frame assembly 120, a steering wheel assembly 130 and a driving wheel assembly 110; the frame assembly 120 includes a first frame 121 and a second frame 122 obliquely connected to the first frame 121, wherein the connection mode here can be a fixed connection mode, or one end of the second frame 122 can be raised and lowered along the first frame 121; the steering wheel assembly 130 includes a rear wheel 132 rotatably connected to the lower end of the first frame 121 and a first driving mechanism 131 fixed to the first frame 121 and used to drive the rear wheel 132 to steer; the driving wheel assembly 110 includes two front wheels 111 coaxially rotatably connected to the lower end of the second frame 122 and a second driving mechanism 114 for driving the two front wheels 111 to rotate; wherein the first driving mechanism 131 and the second driving mechanism 114 are both motors; The double-cone spiral and fishback blade soil-scraping assembly 220, the queue conveying device 300, the lying device 400 and the reciprocating paving and boxing device 500 are all connected to the first frame 121; The bowl-shaped rotary blade scraper assembly is coaxially fixedly connected to the inner sides of the two front wheels 111.

[0022] In one embodiment, Figure 9 and Figure 10 As shown, the queue conveying device 300 includes a synchronous reverse driving device 330, which includes two first driving wheels 332 rotatably connected to the first frame 121, a fourth driving mechanism 334 fixedly connected to the first frame 121 and used to drive the two first driving wheels 332 to rotate, and a first driven wheel 333 rotatably connected to the first frame 121, the first conveyor belt 311 is wound around the first driving wheel 332 and the first driven wheel 333, and the output end of the fourth driving mechanism 334 is transmission-connected to the two first driving wheels 332; wherein, the fourth driving mechanism 334 is a reduction motor.

[0023] It can be understood that this arrangement allows the power of the fourth driving mechanism 334 to be transmitted in two ways, which is conducive to the synchronous reverse rotation of the two first conveyor belts 311, which is more reliable than achieving synchronous reverse rotation by two motors.

[0024] It should be noted that the front ends of the two first conveyor belts 311 are trumpet-shaped openings, so as to facilitate clamping the green onions growing side by side.

[0025] In one embodiment, Figure 10As shown, the synchronous reverse drive device 330 includes a first transmission shaft 335, two first chain transmission mechanisms 336, two first bevel gear transmission mechanisms 337 and two belt transmission mechanisms 331. The output end of the fourth drive mechanism 334 is connected to one end of the first transmission shaft 335 and the input end of a first bevel gear transmission mechanism 337 through a first chain transmission mechanism 336, and the other end of the first transmission shaft 335 is connected to the input end of another first bevel gear transmission mechanism 337 through another first chain transmission mechanism 336; the output ends of the two first bevel gear transmission mechanisms 337 are respectively connected to the two first driving wheels 332 through two belt transmission mechanisms 331.

[0026] It can be understood that since the synchronous reverse drive device 330 needs to bypass the upper and lower ranges where the green onions pass when it is arranged, a first transmission shaft 335 is set below the green onions to divide the driving power of the first rotation drive mechanism into two ways and transmit them to the two first chain transmission mechanisms 336 respectively, so that the two symmetrical first conveyor belts 311 can rotate synchronously, and the symmetrical reverse rotation of the two first transmission belts can be realized through the two first bevel gear transmission mechanisms 337.

[0027] In one embodiment, Figure 10 As shown, the acceleration assembly 410 includes two second driving wheels 413 coaxially fixedly connected to the two first driving wheels 332 and two second driven wheels 411 rotatably connected to the first frame 121. The tooth top circle diameter of the second driving wheel 413 is larger than the tooth top circle diameter of the first driving wheel 332, and the second conveyor belt 412 is wound around the second driving wheel 413 and the second driven wheel 411.

[0028] It can be understood that since the first driving wheel 332 and the second driving wheel 413 are coaxially fixedly connected, the angular velocity of the first driving wheel 332 and the second driving wheel 413 are the same. Since the diameter of the tooth top circle of the second driving wheel 413 is larger than the diameter of the tooth top circle of the first driving wheel 332, the linear velocity of the second driving wheel 413 is greater than the linear velocity of the first driving wheel 332, that is, the second conveyor belt 412 forms a differential transmission, thereby achieving the effect of accelerating the transmission of the green onions, so as to cooperate with the tripping component 420 to convert the green onions into a horizontal lying posture.

[0029] In one embodiment, Figure 9As shown, the queue conveying device 300 includes a parallelogram tensioning device 320, which includes a first support frame 321 fixedly connected to the first frame 121, a mounting frame 322 located on the side of the first support frame 321 close to the first conveyor belt 311, and a plurality of support plates 323. The first support frame 321, the mounting frame 322 and any two support plates 323 constitute a parallelogram structure. The length direction of the first support frame 321 matches the conveying direction of the first conveyor belt 311. The mounting frame 322 is connected to a plurality of tensioning wheels 324 for tensioning the first conveyor belt 311 along the length direction. One end of the support plate 323 is hinged to the mounting frame 322. The first support frame 321 is provided with a lockable linear movable pair 325 along the length direction. The other end of the support plate 323 is hinged to the moving end of the linear movable pair 325; the second driven wheel 411 is rotatably connected to the mounting frame 322.

[0030] It can be understood that when the multiple moving ends on the linear moving pair 325 move, the multiple support plates 323 can swing, and since the first support frame 321, the mounting frame 322 and any two support plates 323 constitute a parallelogram mechanism, the multiple tensioning wheels 324 on the mounting frame 322 can be synchronously translated toward the first conveyor belt 311 to tension the first conveyor belt 311, thereby achieving the clamping and transmission of the green onions by changing the distance between the inner surfaces of the two symmetrically arranged first conveyor belts 311; in addition, the two second driven wheels 411 can also approach each other with the two mounting frames 322, thereby achieving the clamping and accelerated transportation of the green onions by changing the distance between one end of the two second conveyor belts 412.

[0031] In one embodiment, Figure 1 and Figure 11 As shown, the tripping assembly 420 includes a second support frame 421 fixedly connected to the first frame 121 and a roller shaft 422 rotatably connected to the second support frame 421 , and the axis of the roller shaft 422 is horizontal and perpendicular to the conveying direction of the first conveyor belt 311 .

[0032] It can be understood that the roller shaft 422 can trip the green onion so as to cooperate with the acceleration component 410 to convert the green onion into a horizontal lying position.

[0033] In one embodiment, Figure 1 、 Figure 12 and Figure 13As shown, the cylindrical cam reciprocating translation assembly 520 includes a third support frame 521 fixedly connected to the first frame 121, a first lead screw 526 rotatably connected to the third support frame 521, a fifth driving mechanism 522 fixedly connected to the third support frame 521 and used to drive the first lead screw 526 to rotate, and a light rod 527 fixedly connected to the third support frame 521. The length direction of the first lead screw 526 matches the length direction of the light rod 527. The output end of the fifth driving mechanism 522 is fixedly connected to the third support frame 521. It is transmission connected to one end of the first lead screw 526, and the first lead screw nut 528 is threadedly connected to the first lead screw nut 528. The upper end of the first lead screw nut 528 is fixedly connected to a sliding table 529 for slidingly connecting the light rod 527, and the upper end of the sliding table 529 is fixedly connected to the box body 510; wherein, the fifth driving mechanism 522 can be a reduction motor; in addition, the sliding table 529 is slidingly connected to the light rod 527 through a linear bearing, and a groove is provided at the upper end of the sliding table 529, and a box fixing clamp is provided at the groove.

[0034] It can be understood that the fifth driving mechanism 522 can drive the first lead screw 526 to rotate, and the light rod 527 can limit the sliding table 529 and the first lead screw nut 528 to which it is fixed, so that the first lead screw nut 528 and the sliding table 529 can be translated in one direction, thereby being able to translate the box body 510, and it is simpler and more reliable than the reverse reciprocating movement achieved by the electrical control motor.

[0035] In one embodiment, the fifth driving mechanism 522 is a rotating driving mechanism, and the cylindrical cam reciprocating translation assembly 520 includes a third driving wheel 523 fixedly connected to the output end of the fifth driving mechanism 522 and a third driven wheel 525 fixedly connected to one end of the first lead screw 526, and a synchronous belt 524 is wound around the third driving wheel 523 and the third driven wheel 525; the cylindrical cam reciprocating translation assembly 520 includes a composite sleeve connected to the third support frame 521 and used to tension the synchronous belt 524.

[0036] It can be understood that the fifth driving mechanism 522 can drive the third driving wheel 523 to rotate, and the third driving wheel 523 drives the third driven wheel 525 to rotate through the synchronous belt 524, and the composite sleeve can tension the synchronous belt 524, thereby driving the first screw 526 to rotate.

[0037] In one embodiment, Figure 1 、 Figure 5 and Figure 6 As shown, the steering wheel assembly 130 includes a worm gear reducer 133 , the first driving mechanism 131 is a motor and its output end is connected to the rear wheel 132 through the worm gear reducer 133 , so as to drive the rear wheel 132 to steer through the first driving mechanism 131 .

[0038] Specifically, the first frame 121 is fixedly connected to a bracket, the casing of the first driving mechanism 131 is fixedly connected to the bracket, the worm wheel and worm of the worm gear reducer 133 are both rotatably connected to the bracket, and the axis of the worm is horizontal, and the axis of the worm wheel is vertical, and the output end of the first driving mechanism 131 is fixedly connected to the worm through a coupling; the output end of the worm wheel is fixedly connected to another bracket, and the rear wheel 132 is rotatably connected to the bracket, and the axis of the rear wheel 132 is horizontal.

[0039] like Figure 1-4 As shown, the driving wheel assembly 110 includes two second chain transmission mechanisms 113 and two tension adjusters 112 for adjusting the tension of the two second chain transmission mechanisms 113 respectively. The second driving mechanism 114 is a worm gear reduction motor and its output end is connected to the two front wheels 111 respectively through the two second chain transmission mechanisms 113.

[0040] Specifically, the casing of the second driving mechanism 114 is fixedly connected to the second frame 122 via a bracket, the output end of the second driving mechanism 114 is connected to the second transmission shaft 115, and the second transmission shaft 115 is rotatably connected to the second frame 122 via another bracket. The two front wheels 111 are respectively coaxially fixedly connected to the two third transmission shafts 116, and the two third transmission shafts 116 are rotatably connected to the second frame 122; the second chain transmission mechanism 113 includes two driving sprockets, two driven sprockets and two chains, the second transmission shaft 115 is coaxially fixedly connected to the two driving sprockets, and the inner sides of the two third transmission shafts 116 are respectively coaxially fixedly connected to the two driven sprockets; wherein, a chain is wound around a driving sprocket, a driven sprocket and a tension adjuster 112; In addition, in order to improve the grip of the front wheels 111 , two gripping cyclone wheels 117 are coaxially fixedly connected to the outer sides of the two front wheels 111 .

[0041] The bowl-shaped rotary blade scraper assembly includes two bowl-shaped rotary blades 210 coaxially fixedly connected to the inner sides of the two front wheels 111.

[0042] Specifically, if Figure 1 and Figure 7 As shown, the inner sides of the two third transmission shafts 116 are coaxially fixedly connected to two bowl-shaped rotary cutters 210, so that the two bowl-shaped rotary cutters 210 can rotate coaxially with the two front wheels 111; wherein, the bowl-shaped rotary cutter 210 includes a bowl-shaped outer wall 211 and blades 212, and six blades 212 are evenly arranged on the bowl-shaped outer wall 211. All blades 212 rotate in a certain direction and form a certain angle with the axis along the bowl-shaped outer wall 211, and the blades 212 are inclined at a certain angle to the bowl-shaped outer wall 211; the blades 212 are chamfered to be flush with the bottom of the bowl-shaped outer wall 211 to prevent contact with the chain of the second chain transmission mechanism 113; the blades 212 at the bowl mouth are higher than the top of the bowl-shaped outer wall 211, so as to facilitate turning over the soil without accumulating it.

[0043] like Figure 1 and Figure 8 As shown, the double-cone spiral and fishback shovel earth-moving assembly 220 includes two spiral cones 222 rotatably connected to the first frame 121 and two sixth drive mechanisms 221 fixedly connected to the first frame 121 and respectively used to drive the two spiral cones 222 to rotate. The sixth drive mechanism 221 is a reduction motor. The two spiral cones 222 gradually approach from top to bottom and the lower ends are respectively rotatably connected to the two ends of the fishback shovel 224.

[0044] Specifically, the first frame 121 is fixedly connected to the two brackets, the casings of the two sixth driving mechanisms 221 are respectively fixedly connected to the two brackets, one end of the two spiral cones 222 are respectively rotatably connected to the two brackets, and the output ends of the two sixth driving mechanisms 221 are respectively coaxially fixedly connected to the two spiral cones 222 to drive the spiral cones 222 to rotate; the lower ends of the two spiral cones 222 are rotatably connected to the two ends of the horizontal shaft 223, and the fishback-shaped scraper 224 is rotatably set on the horizontal shaft 223, and the fishback-shaped scraper 224 has a fishback-shaped upper surface, a fishmouth lower surface and a flat fishbelly surface.

[0045] It should be noted that the fishback scraper 224 is located at the rear and lower part of the bowl-shaped rotary cutter 210; in addition, the front ends of the two first conveyor belts 311 are placed behind the fishback scraper 224 and extend downwardly at an angle to the height of the lower edge of the bowl-shaped rotary cutter 210.

[0046] It should also be noted that the two spiral cones 222 can be tilted and rotated to loosen the soil on both sides of the ridge, and a fishback-shaped shovel 224 is set between the lower ends of the two spiral cones 222 to separate the roots of the green onions from the soil; the front wheel 111 moves in the ridge and provides continuous shoveling and digging forward power; at the same time, in order to improve the grip of the front wheel 111, a gripping cyclone wheel 117 is set to facilitate continuous onion digging operations.

[0047] It should also be noted that the bowl-shaped rotary cutter 210 rotates together with the front wheel 111 to dig up the soil on the ridge surface, so that the onion pulling clamping position can be moved downward, and the front ends of the two first conveyor belts 311 are trumpet-shaped openings, which is conducive to clamping the onions growing side by side together; changing the surface properties of the first conveyor belt 311 to increase the friction coefficient can improve the clamping force; the first conveyor belt 311 is tilted to achieve onion pulling while clamping and transmitting.

[0048] The working method of the present invention is: As the movable chassis 100 moves along the ridge, the bowl-shaped rotary blade shovel assembly digs away the soil on the ridge surface, and the double-cone spiral and fishback shovel blade shovel assembly 220 loosens the soil on both sides of the ridge and separates the green onion roots from the soil, allowing the green onion stems to enter between the two first conveyor belts 311. The two first conveyor belts 311 pull up the green onions and convey them obliquely upward so that the green onion stems enter between the two second conveyor belts 412; The two second conveyor belts 412 cooperate with the tripping assembly 420 to accelerate and trip the green onions, so that the green onions are converted into a horizontal lying posture; The cylindrical cam reciprocating translation assembly 520 drives the box body 510 to translate along the scallion laying direction so that the scallions are laid flatly in the box body 510 .

[0049] The specific working method of the present invention is: Moving the plurality of movable ends of the linear movable pair 325 to cause the plurality of tensioning wheels 324 to tension the first conveyor belt 311 , and then locking the linear movable pair 325 ; After the movable chassis 100 moves to the work site and is in place, the double-cone spiral and fishback blade earth-scraping assembly 220 is started to make the two spiral cones 222 rotate synchronously in opposite directions; like Figure 14 、 Figure 15 and Figure 16 As shown, the front wheel 111 is started to move in the trenches on both sides of the ridges in the working area. At the same time, the bowl-shaped rotary blade 210 rotates synchronously with the front wheel 111 to loosen the soil on both sides of the upper and middle parts of the green onion stems. The two spiral cones 222 rotate to loosen the soil on both sides of the scallion roots. At the same time, the fish-back-shaped blade 224 cuts the scallion roots to separate the roots from the soil. The first conveyor belt 311 moves along with the movable chassis 100, and the green onions enter the trumpet mouth formed at the front end of the two first conveyor belts 311 to clamp and transport the green onions; The two first conveyor belts 311 pull up the green onions and convey them obliquely upward so that the green onion stems enter between the two second conveyor belts 412; like Figure 17 As shown, the two second conveyor belts 412 cooperate with the tripping assembly 420 to accelerate the onions and trip them, so that the onions are converted into a horizontal lying posture; The cylindrical cam reciprocating translation assembly 520 drives the box body 510 to translate along the scallion laying direction so that the scallions are laid flatly in the box body 510 .

[0050] In summary, the present invention divides the power of a reduction motor into two transmission paths to achieve synchronous reverse rotation of the two symmetrical first conveyor belts 311, which is more reliable than the synchronous reverse rotation achieved by two motors; the present invention adopts a parallelogram structure to make multiple tensioning wheels 324 installed on the mounting frame 322 synchronously translate and tension the first conveyor belt 311; the present invention adopts two second conveyor belts 412 to accelerate the scallion stems, and the lower roller shaft 422 trips the scallions to complete the conversion of the scallions from a vertical state to a horizontal lying state; the present invention adopts a cylindrical cam reciprocating translation assembly 520 to achieve reciprocating translation of the box body 510, so that the scallions can be flatly packed in the box, thereby avoiding local accumulation of the scallions.

[0051] In addition, in the present invention, the two spiral cones 222 can be tilted and rotated to loosen the soil on both sides of the ridge, and a fishback-shaped shovel 224 is arranged between the lower ends of the two spiral cones 222 to separate the roots of the green onions from the soil, thereby reducing the force of pulling the onions and preventing the green onions from falling to the ground, creating conditions for subsequent mechanized onion pulling operations; the bowl-shaped rotary knife 210 rotates together with the front wheel 111 to dig up the soil on the ridge surface, so that the onion pulling clamping position can be moved down to the stem of the green onion with stronger toughness, and the first conveyor belt 311 is tilted to realize the integrated onion pulling and transmission; on this basis, the present invention is equipped with a lying device 400 and a reciprocating material laying and boxing device 500 to realize the integration of digging onions, pulling onions, transmission and boxing, so as to improve the efficiency of green onion harvesting.

[0052] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and applications of the invention. It should be understood that many modifications may be made to the illustrative embodiments, and that other arrangements may be devised, without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in ways other than those described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be employed in conjunction with other described embodiments.

Claims

1. A green onion harvesting machine, characterized in that: It comprises a movable chassis (100), a composite onion digging device (200), a queue conveying and lying device, and a reciprocating material spreading and boxing device (500); The composite onion digging device (200) comprises a bowl-shaped rotary blade soil-digging assembly for digging away soil on the ridge surface and a double-cone spiral and fish-back shovel soil-digging assembly (220) for loosening the soil on both sides of the ridge and separating the onion roots from the soil. The composite onion digging device (200) is connected to a movable chassis (100); The queue conveying and lying device comprises a queue conveying device (300) for pulling up green onions and causing the green onions to tilt upward and be conveyed in a queue, and a lying device (400) connected in series with the queue conveying device (300) for accelerating and tripping the conveyed green onions; the queue conveying device (300) comprises a conveying assembly (310) connected to a movable chassis (100), a synchronous reverse driving device (330) and a parallelogram tensioning device (320); the conveying assembly (310) comprises two first conveyor belts (311) for clamping and conveying the green onion stems, the two first conveyor belts (311) running synchronously and The rotation direction is opposite; the lying device (400) includes a tripping assembly (420) and an acceleration assembly (410) connected to the movable chassis (100); the acceleration assembly (410) includes two second conveyor belts (412) for clamping and conveying the green onion stems; the two second conveyor belts (412) run synchronously and rotate in opposite directions; the second conveyor belts (412) are connected in series with the queue conveying device (300) and the conveying speed is greater than the conveying speed of the first conveyor belt (311); wherein, when the green onion roots move to the tripping assembly (420), the green onion stems are clamped and conveyed by the two second conveyor belts (412); The reciprocating material laying and boxing device (500) comprises a box body (510) for catching green onions that are tripped by acceleration, and a cylindrical cam reciprocating translation assembly (520) connected to a movable chassis (100) and used for driving the box body (510) to reciprocate and translate along the green onion laying direction.

2. The onion harvesting machine according to claim 1, characterized in that: The movable chassis (100) includes a frame assembly (120), a steering wheel assembly (130), and a driving wheel assembly (110); the frame assembly (120) includes a first frame (121) and a second frame (122) obliquely connected to the first frame (121); the steering wheel assembly (130) includes a rear wheel (132) rotatably connected to the lower end of the first frame (121) and a first driving mechanism (131) fixed to the first frame (121) and used to drive the rear wheel (132) to steer; the driving wheel assembly (110) includes two front wheels (111) coaxially rotatably connected to the lower end of the second frame (122) and a second driving mechanism (114) used to drive the two front wheels (111) to rotate; The double-cone spiral and fishback shovel earth-scraping assembly (220), the queue conveying device (300), the lying device (400), and the reciprocating paving and boxing device (500) are all connected to the first vehicle frame (121); The bowl-shaped rotary blade plowing assembly is coaxially fixedly connected to the inner sides of the two front wheels (111).

3. The onion harvesting machine according to claim 2, characterized in that: The synchronous reverse driving device (330) comprises two first driving wheels (332) rotatably connected to the first frame (121), a fourth driving mechanism (334) fixedly connected to the first frame (121) and used for driving the two first driving wheels (332) to rotate, and a first driven wheel (333) rotatably connected to the first frame (121); the first conveyor belt (311) is wound around the first driving wheel (332) and the first driven wheel (333); and the output end of the fourth driving mechanism (334) is transmission-connected to the two first driving wheels (332).

4. The all-in-one green onion harvesting machine according to claim 3, characterized in that: The synchronous reverse driving device (330) comprises a first transmission shaft (335), two first chain transmission mechanisms (336), two first bevel gear transmission mechanisms (337) and two belt transmission mechanisms (331); the fourth driving mechanism (334) is a rotation driving mechanism, and its output end is connected to one end of the first transmission shaft (335) and the input end of one first bevel gear transmission mechanism (337) through one first chain transmission mechanism (336); the other end of the first transmission shaft (335) is connected to the input end of another first bevel gear transmission mechanism (337) through another first chain transmission mechanism (336); the output ends of the two first bevel gear transmission mechanisms (337) are respectively connected to the two first driving wheels (332) through the two belt transmission mechanisms (331).

5. The all-in-one green onion harvesting machine according to claim 3, characterized in that: The acceleration assembly (410) includes two second driving wheels (413) respectively coaxially fixedly connected to the two first driving wheels (332) and two second driven wheels (411) rotatably connected to the first frame (121), the tooth top circle diameter of the second driving wheel (413) is larger than the tooth top circle diameter of the first driving wheel (332), and the second conveyor belt (412) is wound around the second driving wheel (413) and the second driven wheel (411).

6. The all-in-one green onion harvesting machine according to claim 5, characterized in that: The parallelogram tensioning device (320) includes a first support frame (321) fixedly connected to the first vehicle frame (121), a mounting frame (322) located on the side of the first support frame (321) close to the first conveyor belt (311), and a plurality of support plates (323). The first support frame (321), the mounting frame (322), and any two of the support plates (323) form a parallelogram structure. The length direction of the first support frame (321) matches the length direction of the first conveyor belt (311). In the conveying direction, the mounting frame (322) is connected to a plurality of tensioning wheels (324) for tensioning the first conveyor belt (311) along the length direction, one end of the support plate (323) is hinged to the mounting frame (322), and the first support frame (321) is provided with a lockable linear movable pair (325) along the length direction, and the other end of the support plate (323) is hinged to the movable end of the linear movable pair (325); the second driven wheel (411) is rotatably connected to the mounting frame (322).

7. The all-in-one green onion harvesting machine according to claim 2, characterized in that: The tripping assembly (420) comprises a second support frame (421) fixedly connected to the first frame (121) and a roller shaft (422) rotatably connected to the second support frame (421), wherein the axis of the roller shaft (422) is horizontal and perpendicular to the conveying direction of the first conveyor belt (311).

8. The all-in-one green onion harvesting machine according to claim 2, characterized in that: The cylindrical cam reciprocating translation assembly (520) includes a third support frame (521) fixedly connected to the first frame (121), a first lead screw (526) rotatably connected to the third support frame (521), a fifth driving mechanism (522) fixedly connected to the third support frame (521) and used to drive the first lead screw (526) to rotate, and a light rod (527) fixedly connected to the third support frame (521), wherein the length direction of the first lead screw (526) matches the length direction of the light rod (527), the output end of the fifth driving mechanism (522) is transmission-connected to one end of the first lead screw (526), ​​a first lead screw nut (528) is threadedly connected to the first lead screw (526), ​​the upper end of the first lead screw nut (528) is fixedly connected to a sliding table (529) for slidingly connecting the light rod (527), and the upper end of the sliding table (529) is fixedly connected to the box (510).

9. The all-in-one green onion harvesting machine according to claim 8, characterized in that: The fifth driving mechanism (522) is a rotation driving mechanism. The cylindrical cam reciprocating translation assembly (520) comprises a third driving wheel (523) fixedly connected to the output end of the fifth driving mechanism (522) and a third driven wheel (525) fixedly connected to one end of the first lead screw (526). A synchronous belt (524) is wound around the third driving wheel (523) and the third driven wheel (525). The cylindrical cam reciprocating translation assembly (520) comprises a composite sleeve connected to the third support frame (521) and used for tensioning the synchronous belt (524).

10. The all-in-one green onion harvesting machine according to claim 2, characterized in that: The steering wheel assembly (130) includes a worm gear reducer (133), the first driving mechanism (131) is a rotation driving mechanism and its output end is connected to the rear wheel (132) via the worm gear reducer (133); and / or The driving wheel assembly (110) comprises two second chain transmission mechanisms (113) and two tension adjusters (112) for adjusting the tension of the two second chain transmission mechanisms (113), the second driving mechanism (114) being a rotation driving mechanism and the output end thereof being connected to the two front wheels (111) respectively through the two second chain transmission mechanisms (113); and / or The outer sides of the two front wheels (111) are coaxially fixedly connected to the two gripping cyclone wheels (117); and / or The bowl-shaped rotary blade earth-scraping assembly comprises two bowl-shaped rotary blades (210) respectively coaxially fixedly connected to the inner sides of the two front wheels (111); and / or The double-cone spiral and fishback blade earth-scraping assembly (220) comprises two spiral cones (222) rotatably connected to the first vehicle frame (121) and two sixth driving mechanisms (221) fixedly connected to the first vehicle frame (121) and respectively used to drive the two spiral cones (222) to rotate, wherein the two spiral cones (222) gradually approach each other from top to bottom and the lower ends thereof are rotatably connected to the two ends of the fishback blade (224).

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