Continuous harvesting device for Chinese yams

Abstract

The invention relates to the technical field of agricultural harvesting machinery, in particular to a continuous Chinese yam harvesting device which comprises a trolley body, a soil loosening unit is arranged on the front side of the trolley body, and the soil loosening unit is used for loosening soil; the harvesting unit is used for harvesting the Chinese yams in the loosened soil; the conveying unit is used for conveying the harvested Chinese yams; the cleaning unit comprises an energy collecting mechanism, a rolling cleaning mechanism and a spraying cleaning mechanism; through coordinated operation of the soil loosening unit, the harvesting unit and the conveying unit, energy recycling between the energy collecting mechanism and the spraying cleaning mechanism and double-layer cleaning of the rolling cleaning mechanism and the spraying cleaning mechanism, the production efficiency and the crop quality are improved, and the green agriculture development trend is met.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural harvesting machinery, and particularly to a continuous yam harvesting device. Background Art

[0002] With the acceleration of the pace of agricultural modernization in China, the agricultural production mode is undergoing a profound transformation. Among them, yam, as an economic crop with high economic value and extensive planting area, the problems it faces in the planting and harvesting links are becoming increasingly prominent. For a long time, the harvesting of yam mainly relies on traditional manual excavation methods, which not only have high labor intensity and low efficiency, but also easily cause damage to yams, affecting their quality and market value.

[0003] In China, yam has a long planting history and a vast planting area, mainly concentrated in provinces such as Henan, Shandong, Hebei, and Shanxi. The climate and soil conditions in these areas are suitable for yam growth, making the yam industry flourish in these places. However, the traditional yam harvesting method often requires farmers to bend down and dig the soil. After long hours of labor, not only are they physically exhausted, but also various occupational diseases are easily caused. With the continuous growth of market demand and the advancement of the agricultural modernization process, the traditional yam harvesting method has been difficult to meet the needs of modern agricultural production.

[0004] For example, the Chinese invention patent with the publication number CN108464100A discloses a yam harvesting robot, including a frame. Connecting shafts are respectively arranged in parallel at the front and rear parts of the frame, and traveling systems are arranged on both sides of the frame; a harvesting frame is arranged in the middle of the frame. The upper part of the harvesting frame is triangular, and two support arms are hinged at the front end of the triangle. Plow chassis supports are respectively slidably installed at the lower parts of the support arms. Mounting frames are arranged on the outer sides of each plow chassis support. An earth-digging lifting hydraulic cylinder is arranged between the support arm and the plow chassis support on the same side. A driving frame is also hingedly installed at the middle position of the upper part of the support arm, and the other ends of the driving frame are respectively hingedly installed on both sides of the top head. The middle of the top head is connected to the piston rod end of the earth-digging and gathering hydraulic cylinder, and the cylinder body end of the earth-digging and gathering hydraulic cylinder is hingedly installed at the front end of the harvesting frame.

[0005] The above solution has the following deficiencies in actual use:

[0006] This solution effectively realizes the function of deep soil excavation through the plow chassis that can be flexibly adjusted at multiple angles. However, in actual application, it fails to achieve the recovery of yams. In addition, when using two plow chassis for soil excavation, the soil loosening effect is not ideal, resulting in a large amount of soil adhering to the surface of the yams, bringing inconvenience to the subsequent cleaning work. Summary of the Invention

[0007] The purpose of the present invention is to provide a continuous yam harvesting device to solve the problems raised in the above background art.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A continuous yam harvesting device, comprising:

[0010] A trolley main body, a soil loosening unit is arranged on the front side of the trolley main body, the soil loosening unit is used for loosening the soil, the soil loosening unit comprises two chain drive systems, the chain drive system comprises a frame, both ends of the frame are connected with chains through two sprockets, a drive shaft connected with the sprocket is arranged on the top of the frame and an actuator for driving the drive shaft to rotate, a plurality of blade connecting plates are arranged on the chain, a plurality of blades are arranged on each blade connecting plate, and a connecting seat is arranged on one side of the frame;

[0011] A harvesting unit, the harvesting unit is arranged between the soil loosening unit and the trolley main body, and the harvesting unit is used for harvesting yams in the soil after loosening;

[0012] A conveying unit, the conveying unit is arranged on the trolley main body, and the conveying unit is used for conveying the harvested yams;

[0013] A cleaning unit, the cleaning unit comprises an energy collection mechanism, a rolling cleaning mechanism and a jet cleaning mechanism, the energy collection mechanism is used for collecting the energy generated by the vibration of the harvesting unit during harvesting and triggering the opening of the jet cleaning mechanism, the rolling cleaning mechanism is used for driving the yams to roll so as to clean the soil attached to the surface of the yams, and the jet cleaning mechanism is used for jet cleaning the soil when the yams are rolling.

[0014] Preferably, the harvesting unit comprises two mounting seats, drive arms are arranged on one side of each mounting seat, a motor group for driving the drive arms to rotate is arranged on each mounting seat, push rods are arranged at the ends of the drive arms, guide seats are sleeved on the push rods, the guide seats are respectively connected with the mounting seats, the ends of the push rods are slidably connected with connecting plates through sliding seats, a vibrating shovel mounting seat is arranged at the bottom of the two connecting plates, and a vibrating shovel is arranged on the vibrating shovel mounting seat.

[0015] Preferably, connecting arms are rotatably connected to the tops of the connecting plates, the connecting arms are rotatably connected to the connecting seat through a first rotating shaft, a fixed seat is arranged on the upper surface of the trolley main body, an electric push rod one is arranged on the fixed seat, a bearing seat is arranged at the output end of the electric push rod one, the bearing seat is rotatably connected with the two chain drive systems through a rotating shaft, an electric push rod two is rotatably connected to the front side of the fixed seat, and the output end of the electric push rod two is rotatably connected with the two chain drive systems through a connecting shaft.

[0016] Preferably, the conveying unit includes two support frames arranged on the lower surface of the trolley body. A conveyor 1 is rotatably connected between the two support frames through bearings. Two connecting pieces are rotatably connected to the input side of the conveyor 1. The ends of the connecting pieces are slidably connected to slide rails through sliders. A conveyor 2 is arranged between the two slide rails. The input side of the conveyor 2 is rotatably connected to the output side of the vibrating shovel through a rotating shaft.

[0017] Preferably, a conveyor belt is arranged at the rear side of the upper surface of the trolley body. The conveyor belt is inclined. Two driving rollers are sleeved inside the conveyor belt. The driving roller at the higher position is connected to the trolley body through a bearing seat. An actuating mechanism for driving the driving roller is arranged on the upper surface of the trolley body. The ends of the driving roller at the lower position are rotatably connected to two frame bodies through bearings.

[0018] Preferably, the energy harvesting mechanism includes a telescopic rod, a pressing block, a return spring, a piezoelectric ceramic block, a storage battery, a connecting rod, a piston ring and a cylinder. The two ends of the telescopic rod are respectively connected to the side plate of the conveyor 2 and the vibrating shovel. The pressing block is arranged inside the telescopic rod. The pressing block and the vibrating shovel are connected to each other. The piezoelectric ceramic block is also arranged inside the telescopic rod. When the vibrating shovel vibrates, the pressing block will repeatedly press the piezoelectric ceramic block. Metal electrodes are coated on both sides of the piezoelectric ceramic, and the metal electrodes are connected to the storage battery. The telescopic rod is provided with a pneumatic cavity. The connecting rod is connected to the pressing block. The piston ring is connected to the connecting rod. The piston ring is movably connected to the pneumatic cavity. When the piston ring moves along the pneumatic cavity, gas will be compressed into the cylinder.

[0019] Preferably, the rolling cleaning mechanism includes a mounting frame, a roller and a driving wheel. Two groups of mounting frames are arranged on the lower surface of the trolley body. The cylinder is arranged on the mounting frame. The roller is arranged inside the two groups of mounting frames. A plurality of driving wheels are rotatably connected to the mounting frame through rotating shafts. Two annular slide rails corresponding to the driving wheels are arranged on the outer peripheral surface of the roller. A plurality of sieve holes are formed in the roller. A plurality of spiral plates are arranged on the inner peripheral surface of the roller.

[0020] Preferably, the spraying cleaning mechanism includes a solenoid valve, a magnet and a spray head. The solenoid valve is connected to the cylinder. The magnet is arranged on the roller. The magnet is arranged at the air inlet end of the spray head. When the solenoid valve and the magnet are in contact with each other, the cylinder will be opened and air will be sprayed through the spray head.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: The present application designs a front soil loosening unit and a harvesting unit, which can realize continuous harvesting of yams; the movement of the trolley body and the coordinated work of the harvesting unit can improve the harvesting efficiency and avoid the low efficiency problem of traditional manual or single harvesting; through the energy collection mechanism, the energy generated by the harvesting vibration is utilized and converted into electric energy by the energy collection mechanism to provide power for subsequent operations (such as spraying and cleaning), ensuring that the soil can be removed in time during the yam harvesting process, thereby improving the cleanliness of the yams and reducing the trouble of manual cleaning; through the combination of the rolling cleaning mechanism and the spraying cleaning mechanism, the yams can be evenly cleaned of the attached soil during transportation, ensuring that the soil attached to the surface of the yams can be effectively removed and improving the product quality. Through the "coordinated operation of the soil loosening unit, the harvesting unit and the conveying unit", the "energy recycling between the energy collection mechanism and the spraying cleaning mechanism", and the "double-layer cleaning of the rolling cleaning mechanism and the spraying cleaning mechanism", the present application not only improves the production efficiency and crop quality, but also conforms to the development trend of green agriculture, and has significant economic value and social significance for large-scale yam planting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the axonometric structure schematic diagram of the present invention Figure 1 ;

[0023] Figure 2 is the axonometric structure schematic diagram of the present invention Figure 2 ;

[0024] Figure 3 is the axonometric structure schematic diagram of the harvesting unit of the present invention;

[0025] Figure 4 is the axonometric structure schematic diagram of the soil loosening unit of the present invention Figure 1 ;

[0026] Figure 5 is the axonometric structure schematic diagram of the soil loosening unit of the present invention Figure 2 ;

[0027] Figure 6 is the position structure schematic diagram of the conveying unit and the cleaning unit of the present invention;

[0028] Figure 7 is the internal structure schematic diagram of the drum of the present invention;

[0029] Figure 8 is the internal structure schematic diagram of the telescopic rod of the present invention.

[0030] In the figure:

[0031] 100, trolley body;

[0032] 200, power supply module;

[0033] 300, Soil loosening unit; 301, Frame; 302, Actuator; 303, Drive shaft; 304, Chain; 305, Blade connecting plate; 306, Blade; 307, Connecting seat;

[0034] 400, Harvesting unit; 401, Mounting seat; 402, Driving arm; 403, Push rod; 404, Guide seat; 405, Slide seat; 406, Connecting plate; 407, Vibration shovel mounting seat; 408, Vibration shovel; 409, Connecting arm; 410, Rotating shaft 1; 411, Fixed seat; 412, Electric push rod 1; 413, Bearing seat; 414, Electric push rod 2; 415, Connecting shaft;

[0035] 500, Conveying unit; 501, Support frame; 502, Conveyor 1; 503, Connector; 504, Slide rail; 505, Conveyor 2; 506, Conveyor belt;

[0036] 601, Mounting frame; 602, Drum; 603, Driving wheel; 604, Actuating mechanism; 605, Annular slide rail; 606, Sieve holes; 607, Spiral plate; 600, Telescopic rod; 608, Pressing block; 609, Return spring; 610, Piezoelectric ceramic block; 611, Energy storage battery; 612, Connecting rod; 613, Piston ring; 614, Cylinder; 615, Solenoid valve; 616, Magnet; 617, Sprayer. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figure 1-8 , the present invention provides a technical solution:

[0039] A continuous yam harvesting device, as shown in the attached Figure 1 of the specification, includes:

[0040] The main body of the trolley 100. In this embodiment, a power module 200 for supplying power to the soil loosening unit 300, the harvesting unit 400, and the conveying unit 500 is provided on the main body of the trolley 100. The soil loosening unit 300 is provided on the front side of the main body of the trolley 100. The soil loosening unit 300 is used for loosening the soil. The soil loosening unit 300 includes two chain drive systems, and there is a certain distance between the two chain drive systems to avoid damaging the yams. The chain drive system includes a frame 301. Both ends of the frame 301 are connected with a chain 304 through two sprockets. A drive shaft 303 connected to the sprocket and an actuator 302 for driving the drive shaft 303 to rotate are provided on the top of the frame 301. The actuator 302 uses an electric motor as the driving force. Because the electric motor has high efficiency and reliability and can provide stable and strong power output, the use of the electric motor also makes the operation of the harvester more convenient. Just by controlling the start-stop and speed of the electric motor, the soil loosening operation can be easily realized. The torque of the electric motor is transmitted to the drive shaft 303 through bevel gear transmission to make the chain 304 start to move. A number of blade connecting plates 305 are provided on the chain 304, and a plurality of blades 306 are provided on each blade connecting plate 305. A connecting seat 307 is provided on one side of the frame 301. Among them, the chain 304 is made of high-quality materials to increase its durability and abrasion resistance. The material selection and heat treatment process of the chain 304 have undergone strict quality control to ensure that the chain 304 can withstand high-intensity vibration and friction during use and extend its service life. Among them, the actuator 302 is an electric motor, which has high efficiency and reliability and can provide stable and strong power output. By using the electric motor to drive the chain 304, the blade connecting plate 305, and the blade 306 to move, the soil is cut to achieve the purpose of soil loosening.

[0041] The harvesting unit 400. The harvesting unit 400 is arranged between the soil loosening unit 300 and the main body of the trolley 100. The harvesting unit 400 is used for harvesting the yams in the soil after loosening.

[0042] The conveying unit 500. The conveying unit 500 is arranged on the main body of the trolley 100. The conveying unit 500 is used for conveying the harvested yams.

[0043] The cleaning unit. The cleaning unit includes an energy collection mechanism, a rolling cleaning mechanism, and a spraying cleaning mechanism. The energy collection mechanism is used for collecting the energy generated by the vibration during harvesting of the harvesting unit 400 and triggering the opening of the spraying cleaning mechanism. The rolling cleaning mechanism is used for driving the yams to roll so as to clean the soil attached to the surface of the yams. The spraying cleaning mechanism is used for spraying and cleaning the soil when the yams are rolling.

[0044] The harvesting unit 400 includes two mounting seats 401. On one side of each mounting seat 401, a driving arm 402 is provided. On each mounting seat 401, a motor set for driving the driving arm 402 to rotate is provided. At the end of each driving arm 402, a push rod 403 is provided. A guiding seat 404 is sleeved on each push rod 403. The guiding seats 404 are respectively connected to the mounting seats 401. The end of each push rod 403 is slidably connected with a connecting plate 406 through a sliding seat 405. At the bottom of the two connecting plates 406, a vibrating shovel mounting seat 407 is provided. A vibrating shovel 408 is provided on the vibrating shovel mounting seat 407. Among them, the driving arm 402 is driven to rotate by the motor set, and the reciprocating motion of the push rod 403 is realized under the guidance of the guiding seat 404. Under the action of the sliding seat 405, the vibrating shovel 408 makes a reciprocating motion, simulating the action of shoveling the ground, so as to collect the middle yam and the soil.

[0045] A connecting arm 409 is rotatably connected to the top of each connecting plate 406. The connecting arm 409 is rotatably connected to the connecting seat 307 through a first rotating shaft 410. With the cooperation of the above structure, the vibrating shovel 408 can move synchronously with the up and down movement of the chain drive system. A fixing seat 411 is provided on the upper surface of the trolley body 100. An electric push rod 412 is provided on the fixing seat 411. The output end of the electric push rod 412 is provided with a bearing seat 413. The bearing seat 413 is rotatably connected to the two groups of chain drive systems through a rotating shaft. By adjusting the height of the chain drive system through the electric push rod 412, the phenomenon of cutting the soil during the walking process in the non-working state can be avoided. An electric push rod 414 is rotatably connected to the front side of the fixing seat 411. The output end of the electric push rod 414 is rotatably connected to the two groups of chain drive systems through a connecting shaft 415. The electric push rod 414 can adjust the angle of the chain drive system, so as to adjust the soil cutting angle and improve the utilization rate of soil cutting.

[0046] The conveying unit 500 includes two support frames 501 disposed on the lower surface of the trolley body 100. A conveyor 502 is rotatably connected between the two support frames 501 through bearings. Two connecting members 503 are rotatably connected to the input side of the conveyor 502. The ends of the connecting members 503 are slidably connected to the slide rails through sliders. The ends of the connecting members 503 are rotatably connected to the sliders. A conveyor 504 is disposed between the two slide rails. With the cooperation of the above structures, the telescopic functions of the conveyor 502 and the conveyor 504 can be realized, so that the conveyor 504 can move following the vibrating shovel 408. Ensure that when the vibrating shovel 408 shovels up the yams, the conveyor 502 and the conveyor 504 timely convey the yams. The input side of the conveyor 504 is rotatably connected to the output side of the vibrating shovel 408 through a rotating shaft. It should be noted that both the conveyor 502 and the conveyor 504 include a conveyor frame, a conveyor belt, a driving roller and a motor. By controlling the motor to work, the driving roller rotates, thereby realizing the movement of the conveyor belt and completing the conveying work of the yams.

[0047] A conveyor belt 506 is disposed at the rear side of the upper surface of the trolley body 100. The conveyor belt 506 is inclined. Two driving rollers are sleeved inside the conveyor belt 506. The driving roller located at the higher position is connected to the trolley body 100 through a bearing seat. An actuating mechanism 604 for driving the driving roller is disposed on the upper surface of the trolley body 100. The end of the driving roller located at the lower position is rotatably connected to two frames through bearings. The frames are connected to the lower surface of the trolley body 100. Among them, in actual use, baffles are disposed on both sides of the conveyor belt 506 to prevent the phenomenon of yams falling during the conveying of yams. The conveyor belt 506 is made of wear-resistant and corrosion-resistant materials to adapt to different soil and environmental conditions. And the width of the conveyor belt 506 is sufficient to accommodate yams of different sizes. The smooth surface reduces the friction and damage of the yams during the conveying process. The running speed of the conveyor belt 506 can be adjusted to ensure that the yams can be transported smoothly and avoid the collision and rolling of the yams caused by too fast speed. The inclination angle of the conveyor belt 506 can also be adjusted according to actual needs to adapt to different harvesting conditions and the planting depth of yams.

[0048] The rolling cleaning mechanism includes a mounting bracket 601, a drum 602, and a transmission wheel 603. Two groups of mounting brackets 601 are provided on the lower surface of the trolley main body 100. The drum 602 is arranged inside the two groups of mounting brackets 601. A plurality of transmission wheels 603 are rotatably connected to the mounting bracket 601 through a rotating shaft. Two annular slide rails 605 corresponding to the transmission wheels 603 are arranged on the outer peripheral surface of the drum 602. A number of sieve holes 606 are provided on the drum 602. A plurality of spiral plates 607 are arranged on the inner peripheral surface of the drum 602. Among them, the outlet side of the drum 602 is located above the conveyor belt 506. During the process of harvesting yams, as the trolley main body 100 moves, the lower part of the drum 602 will also perform the operation of shoveling soil. At the same time, under the action of the internal spiral plate 607, the drum 602 can be rotated. The sieve holes 606 on the drum 602 can allow soil particles to pass through smoothly, but it is necessary to ensure that the yams are not damaged during the excavation process. The soil entering the drum 602 can be discharged through the sieve holes 606, and the yams fall on the conveyor belt 506 under the push of the soil and the subsequent yams. In the actual use process, an actuator 604 for driving the rotation of the drum 602 can be provided on one of the mounting brackets 601 according to needs, so as to adjust its rotation speed to ensure that the yams are excavated under the most suitable conditions. This flexibility can adapt to different soil types and the planting depth of yams, so as to achieve efficient and damage-free harvesting;

[0049] The energy collection mechanism includes a telescopic rod 600, a pressing block 608, a return spring 609, a piezoelectric ceramic block 610, an energy storage battery 611, a connecting rod 612, a piston ring 613, and a cylinder 614. The two ends of the telescopic rod 600 are respectively connected to the side plate of the conveyor two 504 and the vibrating shovel 408. The pressing block 608 is arranged inside the telescopic rod 600. The return spring 609 is used to drive the pressing block 608 to reset. The pressing block 608 and the vibrating shovel 408 are connected to each other. The piezoelectric ceramic block 610 is also arranged inside the telescopic rod 600. When the vibrating shovel 408 vibrates, the pressing block 608 will repeatedly press the piezoelectric ceramic block 610. Metal electrodes are coated on both sides of the piezoelectric ceramic block 610. The metal electrodes are connected to the energy storage battery 611 through a full-bridge rectifier. The full-bridge rectifier is used to convert the alternating current output by the piezoelectric ceramic block 610 into direct current. The energy storage battery 611 is provided with a DC-DC conversion module. The DC-DC conversion module is used to adjust the voltage of the input current to adapt to the charging electric energy of the energy storage battery 611. Both the full-bridge rectifier and the DC-DC conversion module are existing technologies, and the specific models can be reasonably selected according to the actual situation. The telescopic rod 600 is provided with a pneumatic chamber. The connecting rod 612 is connected to the pressing block 608. The piston ring 613 is connected to the connecting rod 612. The piston ring 613 is movably connected to the pneumatic chamber. When the piston ring 613 moves along the pneumatic chamber, the gas will be compressed into the cylinder 614.

[0050] The jet cleaning mechanism includes a solenoid valve 615, a magnet 616 and a nozzle 617. The solenoid valve 615 is an electromagnetic opening valve and is driven by the electric energy in the energy storage battery 611. The solenoid valve 615 is connected to the cylinder 614. The magnet 616 is arranged on the roller 602 and at the air inlet end of the nozzle 617. When the solenoid valve 615 and the magnet 616 come into contact with each other, the cylinder 614 will open and jet air through the nozzle 617.

[0051] Working principle:

[0052] When harvesting yams, the height of the soil loosening unit 300 is adjusted by controlling the first push rod to work, and the height of the vibrating shovel 408 changes accordingly. Then, after adjusting the angle of the soil loosening unit 300 by controlling the second electric push rod 414 to work, the soil loosening unit 300 is controlled to work to perform the soil cutting and loosening process. The vibrating shovel 408 and the roller 602 can shovel up the turned yams. The yams on the vibrating shovel 408 are transported into the roller 602 under the transportation of the first conveyor 502 and the second conveyor 504. When the vibrating shovel 408 vibrates, the telescopic rod 600 will continuously extend and retract, thereby driving the pressing block 608 to press the piezoelectric ceramic block 610, and the electric energy is stored in the energy storage battery 611. When the telescopic rod 600 extends and retracts, it will drive the piston ring 613 to reciprocate in the air pressure chamber, thereby continuously pumping air into the cylinder 614;

[0053] As the roller 602 rotates, part of the soil on the yams is discharged through the sieve holes 606. When rotating, when the magnet 616 and the solenoid valve 615 adsorb each other, the solenoid valve 615 will open and then jet air through the nozzle 617 to jet-clean the soil attached to the surface of the yams;

[0054] After that, the yams continue to move onto the conveying unit 500, and the conveying unit 500 conveys the yams.

[0055] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A yam continuous harvesting device, characterized in that: include: A trolley body, a soil loosening unit is arranged on the front side of the trolley body, the soil loosening unit is used to loosen the soil, the soil loosening unit includes two sets of chain drive systems, the chain drive system includes a frame, two ends of the frame are connected with chains through two sprockets, a driving shaft connected with the sprocket and an actuator driving the driving shaft to rotate are arranged on the top of the frame, a plurality of blade connecting plates are arranged on the chain, a plurality of blades are arranged on the blade connecting plates, and a connecting seat is arranged on one side of the frame; A harvesting unit, which is arranged between the loosening unit and the trolley body, and is used to harvest the yam in the soil after loosening; A conveying unit, the conveying unit is arranged on the trolley body, and the conveying unit is used to convey the harvested yam; A cleaning unit, the cleaning unit includes an energy collection mechanism, a rolling cleaning mechanism and a spray cleaning mechanism, the energy collection mechanism is used to collect the energy generated by the harvesting vibration of the harvesting unit and trigger the opening of the spray cleaning mechanism, the rolling cleaning mechanism is used to drive the yam to roll so as to clean the soil attached to the surface of the yam, and the spray cleaning mechanism is used to spray and clean the soil when the yam rolls.

2. The yam continuous harvesting device according to claim 1, characterized in that: The harvesting unit includes two mounting seats, a driving arm is provided on one side of the mounting seats, a motor group for driving the driving arm to rotate is provided on the mounting seats, push rods are provided at the ends of the driving arms, guide seats are sleeved on the push rods, the guide seats are respectively connected to the mounting seats, the ends of the push rods are slidably connected to connecting plates through sliding seats, vibrating shovel mounting seats are provided at the bottoms of the two connecting plates, and a vibrating shovel is provided on the vibrating shovel mounting seats.

3. The yam continuous harvesting device according to claim 2, characterized in that: The top of the connecting plate is rotatably connected with a connecting arm, and the connecting arm is rotatably connected to a connecting seat via a rotating shaft 1. A fixed seat is provided on the upper surface of the trolley body, and an electric push rod 1 is provided on the fixed seat. A bearing seat is provided at the output end of the electric push rod 1, and the bearing seat is rotatably connected to two sets of chain drive systems via a rotating shaft. An electric push rod 2 is rotatably connected to the front side of the fixed seat, and the output end of the electric push rod 2 is rotatably connected to the two sets of chain drive systems via a connecting shaft.

4. The yam continuous harvesting device according to claim 2, characterized in that: The conveying unit includes two support frames arranged on the lower surface of the trolley body, and a conveyor 1 is rotatably connected between the two support frames through a bearing. The input side of the conveyor 1 is rotatably connected to two connecting members, and the ends of the connecting members are slidably connected to slide rails through sliders. A conveyor 2 is arranged between the two slide rails, and the input side of the conveyor 2 is rotatably connected to the output side of the vibrating shovel through a rotating shaft.

5. The yam continuous harvesting device according to claim 4, characterized in that: A conveyor belt is arranged on the rear side of the upper surface of the trolley body, and the conveyor belt is arranged at an angle. Two transmission rollers are sleeved inside the conveyor belt. The transmission rollers located at a high position are connected to the trolley body through bearing seats. An actuator for driving the transmission rollers is arranged on the upper surface of the trolley body, and the ends of the transmission rollers located at a low position are rotatably connected to two frames through bearings.

6. The yam continuous harvesting device according to claim 4, characterized in that: The energy collection mechanism includes a telescopic rod, a pressing block, a return spring, a piezoelectric ceramic block, an energy storage battery, a connecting rod, a piston ring and a cylinder. The two ends of the telescopic rod are respectively connected to the side plates of the second conveyor and the vibrating shovel. The pressing block is arranged inside the telescopic rod. The pressing block and the vibrating shovel are connected to each other. The piezoelectric ceramic block is also arranged in the telescopic rod. When the vibrating shovel vibrates, the pressing block will repeatedly press the piezoelectric ceramic block. Metal electrodes are coated on both sides of the piezoelectric ceramic, and the metal electrodes are connected to the energy storage battery. The telescopic rod is provided with an air pressure chamber, the connecting rod is connected to the pressing block, the piston ring is connected to the connecting rod, and the piston ring is movably connected to the air pressure chamber. When the piston ring moves along the air pressure chamber, the gas will be compressed into the cylinder.

7. The yam continuous harvesting device according to claim 6, characterized in that: The rolling cleaning mechanism includes a mounting frame, a roller and a transmission wheel. Two groups of mounting frames are arranged on the lower surface of the trolley body. The cylinder is arranged on the mounting frame. Rollers are arranged in the two groups of mounting frames. A plurality of transmission wheels are rotatably connected to the mounting frame via a rotating shaft. Two annular slide rails corresponding to the transmission wheels are arranged on the outer circumference of the roller. A plurality of sieve holes are opened on the roller. A plurality of spiral plates are arranged on the inner circumference of the roller.

8. The yam continuous harvesting device according to claim 7, characterized in that: The jet cleaning mechanism includes a solenoid valve, a magnet and a nozzle, the solenoid valve is connected to the cylinder, the magnet is arranged on the roller, and the magnet is arranged at the air inlet end of the nozzle. When the solenoid valve and the magnet contact each other, the cylinder will open and spray airflow through the nozzle.

Images