CN113906895B - Onion Harvester and Onion Harvesting Method - Google Patents

Abstract

The invention discloses an onion harvester and an onion harvesting method. The onion harvester includes a frame, a harvesting device, a stem screw conveying device, a leaf screw conveying device, a soil screening device, a lifting conveying device and a storage box. The harvesting device is arranged at the front of the frame, the stem screw conveying device and the leaf screw conveying device are all arranged under the rear end of the harvesting device, the soil screening device is arranged below the outlet of the stem screw conveying device, and the lifting conveying device It is arranged at the rear end of the soil screening device, the storage box is located at the rear end of the lifting conveying device, and the stem screw conveying device, the leaf screw conveying device, the soil screening device and the lifting conveying device are connected by a chain drive. The onion harvester of the invention can reduce the degree of damage to the onion, improve the harvesting efficiency, and facilitate the screening and storage work in the later stage.

Description

Onion Harvester and Onion Harvesting Method

technical field

The invention relates to an onion harvester and an onion harvesting method, belonging to the field of harvesting machinery design.

Background technique

Onions are widely distributed in China and are cultivated in all parts of the north and south. They are one of the main vegetables grown in China. According to the statistics of the International Food and Agriculture Organization in 2017, the total area of onions planted in China is 1.025 million hm ² (15.375 million mu), with an output of 22.3 million tons. The area and output both rank first in the world. So far, most of the onion picking and harvesting work in China is still carried out manually. The production of onions has prominent problems such as low mechanical utilization rate, heavy labor, high intensity, low efficiency, and high production costs. At present, most of the harvesting machines on the market are designed to use spatula tools for digging, which is not conducive to ensuring the non-damage rate of fruits.

Contents of the invention

The first object of the present invention is to provide an onion harvester in order to overcome the shortcomings of the existing mechanical harvesting of tobacco leaves. This onion harvester can reduce the damage to onions and improve harvesting efficiency, and facilitate the later screening and storage work.

The second object of the present invention is to provide an onion harvesting method, which is realized based on the above-mentioned onion harvester.

First purpose of the present invention can be achieved by taking the following technical solutions:

An onion harvester, comprising a frame, a harvesting device, a stem auger conveying device, a leaf auger conveying device, a soil screening device, a lifting conveying device and a storage box, the harvesting device is arranged at the front of the frame, and the stem auger The conveying device and the leaf screw conveying device are all arranged under the rear end of the harvesting device, the soil screening device is arranged under the outlet of the stem screw conveying device, the lifting conveying device is arranged at the rear end of the soil screening device, and the storage box The body is located at the rear end of the lifting conveying device, and the stem screw conveying device, the leaf screw conveying device, the soil screening device and the lifting conveying device are connected by a chain drive.

Further, the harvesting devices are divided into two groups, and the two groups of harvesting devices are left-right symmetrical. Each group of harvesting devices includes a leaf guiding and gathering mechanism, a chain conveying mechanism and a leaf cutting mechanism. The leaf guiding and gathering mechanism is arranged at the front end of the chain conveying mechanism. The leaf cutting mechanism is arranged below the rear end of the chain conveying mechanism.

Further, the chain conveying mechanism includes a first mounting plate, a second mounting plate, a driving shaft, a first driven shaft, a driving gear, a first driven gear, a first transmission chain and a second transmission chain. A transmission chain is arranged around the first mounting plate, the second transmission chain is arranged around the second mounting plate, the driving shaft is arranged on the first mounting plate and driven by a hydraulic motor, and the first slave The driven shaft is arranged on the second mounting plate, the driving gear is mounted on the driving shaft, the first driven gear is mounted on the first driven shaft, the driving gear meshes with the first driven gear, and the The first drive chain meshes with the second drive chain.

Further, the leaf cutting mechanism includes a disc cutter, a driven assembly and a third drive chain, the disc cutter is arranged under the rear end of the first mounting plate, and the driven assembly includes several second slaves The driven shaft and several second driven gears, the second driven shaft corresponds to the second driven gear one by one, each second driven gear is installed on the corresponding second driven shaft, and several second driven gears The gears mesh in sequence, the first second driven shaft is connected with the first driven shaft through the third transmission chain, and the last second driven shaft is connected with the disc cutter.

Further, the leaf guiding and gathering mechanism is in the shape of a large front opening transitioning to a small middle opening through a circular arc.

Further, the stem screw conveying device includes a first screw roller and a first box, the first screw roller is arranged on the first box, and the blades on both sides of the first screw roller The spiral direction is distributed in a mirror direction about the center, and an inclined outlet is arranged in the middle of the first box;

The leaf screw conveying device includes a second screw roller and a second box, the second screw roller is arranged on the second box, the blade helical direction of the second screw roller is a single direction, and in the second An outlet is provided on one side of the box;

The stem screw conveying device is connected with the leaf screw conveying device through a transmission chain shaft.

Further, the soil sieving device includes two rolling bodies whose outer rings are thin rods, the two rolling bodies are arranged in a trapezoidal distribution, and the two rolling bodies are connected by a transmission chain shaft, the soil sieving device and the stem screw The conveying device is connected by a transmission chain shaft.

Further, the lifting transmission device includes a moving plate, a pulley, a track and a fourth transmission chain, the moving plate is connected with the pulley in the track through the connection of the fourth transmission chain, and the lifting transmission device and the soil screening device pass through the transmission chain shaft connect.

Further, it also includes a suspension traction device, the suspension traction device is installed at the front end of the frame, and is used to connect with the traction tractor and tow the onion harvester for walking.

The second purpose of the present invention can be achieved by taking the following technical solutions:

A kind of onion harvesting method, realizes based on above-mentioned onion harvester, described method comprises:

In the harvesting device, the scattered onion tubular leaves are guided and gathered into a bunch at the front end in advance by the leaf guiding and gathering mechanism, and then the chain conveying mechanism clamps the bunched onion tubular leaves between the first transmission chain and the second transmission chain In the gap, use the chain drive to pull the onion up and lift it to the rear end of the chain conveyor mechanism. When the lifted and transported onions reach the leaf cutting mechanism, the onion will be separated from the stem and leaf, and the cut leaves will continue to be transported along the chain conveyor mechanism to the rear end, the severed stem will fall freely;

The cut stems fall freely into the stem screw conveying device, and the stem screw conveying device concentrates and transports the fallen stems from both sides to the middle, and outputs them from the middle outlet; the cut leaves are transported along the chain conveying mechanism of the harvesting device After reaching the end of the rear end, it falls into the leaf screw conveying device, and the leaf screw conveying device transports the cut leaves to one side of the whole machine, and falls to the ground from the side outlet;

The clay on the surface of the stems falling from the outlet of the stem screw conveying device is shaken off by the soil sieving device, and the rolled stems are received on the moving plate of the lifting conveying device, and the stems are lifted to a certain height for loading into the storage box.

Compared with the prior art, the present invention has the following beneficial effects:

The onion harvester of the present invention is provided with a harvesting device, a stem screw conveyor, a leaf screw conveyor, a soil screening device and a lifting conveyor, and the stem screw conveyor and the leaf spiral conveyor are all arranged under the rear end of the harvesting device, and the soil is screened The device is set under the outlet of the stem screw conveying device, and the lifting conveying device is set at the rear end of the soil sieving device. Compared with the spatula that directly contacts the onion tuber, the harvesting device can effectively avoid damage to the onion, and has the ability to separate onion leaves and tubers Function, reduce the consumption of subsequent manual labor, transport tubers and onion leaves respectively through the stem screw conveyor device and leaf screw conveyor device, and shake off the soil adhered to the surface of the stem through the soil sieving device, which is convenient for subsequent reduction of processing work, and is directly conveyed by lifting The device loads the stems into the storage box; in addition, the onion harvester of the present invention meets the local planting and agronomic requirements, and has a compact structure and light weight under the condition of meeting the intensity of use, saving fuel loss during the harvesting process.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is a schematic diagram of the three-dimensional structure of an onion harvester according to an embodiment of the present invention.

Fig. 2 is a front structural schematic diagram of an onion harvester according to an embodiment of the present invention.

Fig. 3 is a top structural schematic diagram of an onion harvester according to an embodiment of the present invention.

Fig. 4 is a schematic perspective view of the three-dimensional structure of the harvesting device of the embodiment of the present invention.

Fig. 5 is a schematic plan view of the harvesting device of the embodiment of the present invention.

Fig. 6 is a schematic diagram of the transmission mechanism of the disc cutter according to the embodiment of the present invention.

Fig. 7 is a schematic perspective view of the three-dimensional structure of the stem screw conveying device according to the embodiment of the present invention.

Fig. 8 is a schematic perspective view of the three-dimensional structure of the leaf screw conveying device according to the embodiment of the present invention.

Fig. 9 is a schematic perspective view of the three-dimensional structure of the soil screening device according to the embodiment of the present invention.

Fig. 10 is a schematic perspective view of the three-dimensional structure of the lifting conveying device according to the embodiment of the present invention.

Fig. 11 is a schematic plan view of the structure of the lifting conveying device according to the embodiment of the present invention.

Among them, 1-frame, 101-rubber wheel, 102-track wheel, 2-harvesting device, 201-leaf guiding and gathering mechanism, 202-chain conveying mechanism, 2021-first mounting plate, 2022-second mounting plate, 2023 -Drive shaft, 2024-first driven shaft, 2025-drive gear, 2026-first driven gear, 2027-first transmission chain, 2028-second transmission chain, 203-leaf cutting mechanism, 2031-disk Cutter, 2032-the third transmission chain, 2033-the second driven shaft, 2034-the second driven gear, 3-stem screw conveyor, 301-the first screw roller, 302-the first box, 4- Leaf screw conveying device, 401-second screw roller, 402-second box, 5-soil screening device, 501-rolling body, 6-lifting transmission device, 601-moving plate, 602-pulley, 603-track, 604-the fourth transmission chain, 7-storage box, 8-suspension traction device.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is 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 making creative work belong to the protection of the present invention. scope.

Example:

As shown in Figures 1 to 3, the present embodiment provides an onion harvester, which includes a frame 1, a harvesting device 2, a stem screw conveyor 3, a leaf screw conveyor 4, a soil screening device 5, Elevate the conveying device 6 and the storage box 7, the harvesting device 2 is arranged at the front of the frame 1, the stem auger conveying device 3 and the leaf auger conveying device 4 are all arranged under the rear end of the harvesting device 2, and the soil screening device 5 is arranged at the stem Below the outlet of the screw conveyor 3, the lifting conveyor 6 is arranged at the rear end of the soil screening device 5, the storage box 7 is located at the rear end of the lifting conveyor 6, the stem screw conveyor 3, the leaf screw conveyor 4, and the soil screening device 6 It is connected with the lifting conveying device 7 through a chain transmission mode with equal transmission ratio.

In order to pull the onion harvester to walk, the onion harvester of this embodiment can also include a suspension traction device 8, which is installed on the front end of the frame 1, and is used to connect with the traction tractor to pull the onion harvester to walk.

Further, the frame 1 is welded and assembled by C50X40X15X1.5 type C-shaped steel, and holes are drilled in necessary positions for the installation of various devices. Two symmetrical rubber wheels 101 are installed on the front bottom of the frame 1, and the frame The rear bottom of 1 is equipped with two left and right symmetrical crawler wheels 102.

As shown in Figures 1 to 5, the harvesting device 2 is two groups, and the two groups of harvesting devices 2 are left-right symmetrical. It is arranged at the front end of the chain conveying mechanism 202 , and is specifically mounted on the front end of the chain conveying mechanism 202 through screw connection, and the leaf cutting mechanism 203 is arranged below the rear end of the chain conveying mechanism 202 .

Further, the leaf guiding and gathering mechanism 201 is designed so that the large front opening transitions to the small middle opening through a circular arc, the distance from the ground is 80 mm, and the lateral distance of the small middle opening is 15 mm.

Further, the chain conveying mechanism 202 includes a first mounting plate 2021, a second mounting plate 2022, a driving shaft 2023, a first driven shaft 2024, a driving gear 2025, a first driven gear 2026, a first transmission chain 2027 and a second Transmission chain 2028, the first transmission chain 2027 is arranged around the first mounting plate 2021, the second transmission chain 2028 is arranged around the second mounting plate 2022, the driving shaft 2023 is arranged on the first mounting plate 2021, and is driven by the hydraulic motor Drive, the first driven shaft 2024 is arranged on the second mounting plate 2022, the driving gear 2025 is installed on the driving shaft 2023, the first driven gear 2026 is installed on the first driven shaft 2024, the driving gear 2025 and the first slave The moving gear 2026 is engaged, and the first transmission chain 2027 is engaged with the second transmission chain 2028.

During installation, the first mounting plate 2021 and the second mounting plate 2022 are inclined relative to the horizontal plane, specifically at 35 degrees to the horizontal plane, and the first mounting plate 2021 and the second mounting plate 2022 are aligned in parallel, and the corresponding first transmission chain 2027 and the second drive chain 2028 chain links are staggered relative to each other, ensuring that the hollow space area in the middle is about 20mm ² .

Furthermore, the leaf cutting mechanism 203 includes a disc cutter 2031, a driven assembly and a third transmission chain 2032, the disc cutter 2031 is arranged below the rear end of the first mounting plate, and is passed by the driving shaft 2023 of the chain conveying mechanism 202 The mode of gear transmission and chain transmission is designed as the transmission ratio transmission power operation of nine to one, and the schematic diagram of the mechanism of disc cutter 2031 transmission is as shown in Figure 6, and the number of blades of the disc cutter 331 of the present embodiment is designed to be three One, can better adapt to the chain conveyor mechanism 202 and is convenient for installation and disassembly; the driven assembly includes three second driven shafts 2033 and three second driven gears 2034, the second driven shaft 2033 and the second driven gear 2034 one-to-one correspondence, each second driven gear 2034 is installed on the corresponding second driven shaft 2033, three second driven gears mesh in turn, the first second driven shaft 2033 passes through the third transmission chain 2032 It is connected with the first driven shaft 2024, and the third (last) second driven shaft 2033 is connected with the disc cutter 2031.

In the specific implementation of the harvesting device 2, the leaf guiding and gathering mechanism 201 guides and gathers the scattered onion tubular leaves into a bunch in advance at the front end, and then the chain conveying mechanism 202 clamps the bunched onion tubular leaves between the first transmission chain 2027 and the second transmission chain 2027. The gap between the two transmission chains 2028 uses the chain transmission operation to pull up the onions and lift them to the rear end of the chain conveying mechanism. When the lifted and transported onions reach the leaf cutting mechanism 203, the onions are separated from the stems and leaves. The leaves will continue to be transported to the rear end along the chain conveyor mechanism 202, and the cut stems will fall freely.

As shown in Figures 1 to 3 and Figures 7 to 8, the stem screw conveying device 3 is installed directly below the disc cutter 2031, which includes a first spiral roller 301 and a first box 302, the first spiral roller The shaft 301 is arranged on the first box body 302, and the helical direction of the blades on both sides of the first screw roller 301 is distributed in a mirror direction with respect to the center, and an inclined outlet is arranged in the middle of the first box body 302; similarly, the leaf screw conveying device 4 Installed directly below the rear end of the chain conveyor mechanism 202, it includes a second helical roller 401 and a second case 402, the second helical roller 401 is arranged on the second case 402, and the blades of the second helical roller 401 spiral The direction is a single direction, and an outlet is provided on one side of the second box body 402; the stem screw conveying device 3 and the leaf screw conveying device 4 are connected by a transmission chain shaft.

Stem screw conveying device 3 and leaf screw conveying device 4 are in specific implementation, and stem screw conveying device 3 concentrates and transports the fallen stems in the middle from both sides, and outputs from the outlet in the middle; After being transported to the end of the rear end, it falls into the leaf screw conveying device 4, and the leaf screw conveying device 4 transports the cut leaves to one side of the complete machine, and falls on the ground from the outlet of the side.

As shown in Figures 1 to 3 and Figure 9, the soil screening device 5 is arranged below the outlet of the stem screw conveying device 3, and it includes two rolling elements 501 whose outer rings are thin rods, and the arrangement of the two rolling elements 501 is The distribution is trapezoidal, and the two rolling elements 501 are connected by a transmission chain shaft. By passing through the soil screening device 6, the clay on the surface of the stem falling from the outlet of the stem screw conveying device 4 can be shaken off, reducing subsequent labor costs.

As shown in Figures 1 to 3 and Figures 10 to 11, the lifting transmission device 6 is arranged at the rear end of the soil screening device 5, which includes a moving plate 601, a pulley 602, a track 603 and a fourth transmission chain 604, and the moving plate 601 Through the connection of the fourth transmission chain 604 and the cooperation of the pulley 602 in the track 603, a combined movement is formed, and the moving plate 601 on one side will be lifted, while the moving plate 601 will be retracted on the other side and the arc transition The moving plate 601 can achieve a smooth transition effect, which is beneficial to save space and facilitate the lifting and conveying of onion tubers; the lifting transmission device 6 is connected with the soil screening device 5 through a transmission chain shaft, and the rolled stems are received on the moving part of the lifting transmission device 6. On the plate 601, the stems are lifted to a certain height so as to be loaded into the storage box 7.

The present embodiment also provides a kind of onion harvesting method, and this method realizes based on above-mentioned onion harvester, comprises the following steps:

S1. In the harvesting device, the scattered onion tubular leaves are guided and gathered into a bunch at the front end in advance by the leaf guiding and gathering mechanism, and then the chain conveying mechanism clamps the bunched onion tubular leaves between the first transmission chain and the second transmission chain The onion is pulled up and lifted to the rear end of the chain conveying mechanism by using the chain transmission operation. When the lifted and transported onion reaches the leaf cutting mechanism, the onion will be separated from the stem and leaf, and the cut leaves will continue to be conveyed along the chain The mechanism is transported to the rear end, and the cut stem will fall freely.

S2. The removed stems fall freely into the stem screw conveying device, and the stem screw conveying device concentrates and transports the fallen stems from both sides to the middle, and outputs them from the middle outlet; the cut leaves are conveyed along the chain of the harvesting device After the mechanism is transported to the end of the rear end, it falls into the leaf screw conveying device, and the leaf screw conveying device transports the cut leaf to one side of the whole machine, and falls to the ground from the side outlet.

S3. Shake the clay on the surface of the stem falling from the outlet of the stem screw conveying device through the soil sieving device, and the rolled stem is received on the moving plate of the lifting conveying device, and the stem is lifted to a certain height for loading into the storage box middle.

In the description of the present invention, it should be noted that unless otherwise specified and agreed, the terms "installation", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations, and the terms "upper", "lower", "left", "right" and similar expressions are used only for For purposes of illustration, it does not represent the only embodiment.

In summary, the onion harvester of the present invention is provided with a harvesting device, a stem auger conveying device, a leaf auger conveying device, a soil screening device and a lifting conveying device, and the stem auger conveying device and the leaf auger conveying device are all arranged behind the harvesting device. Below the end, the soil sieving device is set under the outlet of the stem screw conveying device, and the lifting transmission device is set at the rear end of the soil sieving device. Compared with the spatula that directly contacts the onion tuber, the harvesting device can effectively avoid damage to the onion and has the ability to separate The function of onion leaves and tubers reduces the consumption of subsequent manual labor. The tubers and onion leaves are respectively conveyed by the stem screw conveyor and the leaf screw conveyor, and the soil adhered to the surface of the stem is shaken off by the soil sieving device, which is convenient for subsequent reduction of processing work , the stems are directly loaded into the storage box by the lifting transmission device; in addition, the onion harvester of the present invention meets the local planting and agronomic requirements, and has a compact structure and light weight under the condition of meeting the intensity of use, saving fuel loss during the harvesting process .

The above is only a preferred embodiment of the patent of the present invention, but the scope of protection of the patent of the present invention is not limited thereto. Equivalent replacements or changes to the technical solutions and their inventive concepts all fall within the scope of protection of the invention patent.

Claims (6)

1. an onion harvester, is characterized in that, comprises frame, harvesting device, stem auger conveying device, leaf auger conveying device, soil screening device, lifting conveying device and storage box, and described harvesting device is arranged on before the frame The stem auger conveying device and the leaf auger conveying device are both arranged under the rear end of the harvesting device, the soil screening device is arranged under the outlet of the stem auger conveying device, and the lifting conveying device is arranged behind the soil sieving device end, the storage box is located at the rear end of the lifting conveyor, and the stem screw conveyor, leaf screw conveyor, soil screening device and lifting conveyor are connected by chain transmission; The harvesting devices are divided into two groups, and the two groups of harvesting devices are left-right symmetrical. Each group of harvesting devices includes a leaf guiding and gathering mechanism, a chain conveying mechanism and a leaf cutting mechanism. The leaf guiding and gathering mechanism is arranged at the front end of the chain conveying mechanism. The cutting mechanism is arranged under the rear end of the chain conveying mechanism; The chain conveying mechanism includes a first mounting plate, a second mounting plate, a driving shaft, a first driven shaft, a driving gear, a first driven gear, a first transmission chain and a second transmission chain, and the first transmission chain It is arranged around the first mounting plate, the second transmission chain is arranged around the second mounting plate, the driving shaft is set on the first mounting plate and is driven by a hydraulic motor, and the first driven shaft is set On the second mounting plate, the driving gear is mounted on the driving shaft, the first driven gear is mounted on the first driven shaft, the driving gear meshes with the first driven gear, and the first transmission the chain meshes with the second drive chain; The leaf cutting mechanism includes a disc cutter, a driven assembly and a third transmission chain, the disc cutter is arranged under the rear end of the first mounting plate, and the driven assembly includes several second driven shafts and Several second driven gears, the second driven shafts correspond to the second driven gears one by one, each second driven gear is installed on the corresponding second driven shaft, and several second driven gears mesh in sequence , the first second driven shaft is connected to the first driven shaft through the third transmission chain, and the last second driven shaft is connected to the disc cutter; The lifting transmission device includes a moving plate, a pulley, a track and a fourth transmission chain, the moving plate cooperates with the pulley in the track through the connection of the fourth transmission chain, and the lifting transmission device and the soil screening device are connected through a transmission chain shaft. 2. The onion harvester according to claim 1, characterized in that, the leaf guiding and gathering mechanism is in the shape of a large front opening transitioning to a small middle opening through a circular arc. 3. The onion harvester according to any one of claims 1-2, wherein the stem screw conveying device comprises a first screw roller and a first casing, and the first screw roller is arranged at the second On a box body, the helical directions of the blades on both sides of the first helical roller are mirror-directed to the center, and an inclined outlet is arranged in the middle of the first box body; The leaf screw conveying device includes a second screw roller and a second box, the second screw roller is arranged on the second box, the blade helical direction of the second screw roller is a single direction, and in the second An outlet is provided on one side of the box; The stem screw conveying device is connected with the leaf screw conveying device through a transmission chain shaft. 4. The onion harvester according to any one of claims 1-2, wherein the soil screening device comprises two rolling elements whose outer rings are thin rods, and the arrangement of the two rolling elements is a trapezoidal distribution, And the two rolling bodies are connected by a transmission chain shaft, and the soil screening device and the stem screw conveying device are connected by a transmission chain shaft. 5. The onion harvester according to any one of claims 1-2, characterized in that, it also includes a suspension traction device, the suspension traction device is installed on the front end of the frame, and is used to be connected with a traction tractor and tow the onion harvester walk. 6. an onion harvesting method, realized based on the onion harvester described in any one of claims 1-5, is characterized in that, described method comprises: In the harvesting device, the scattered onion tubular leaves are guided and gathered into a bunch at the front end in advance by the leaf guiding and gathering mechanism, and then the chain conveying mechanism clamps the bunched onion tubular leaves between the first transmission chain and the second transmission chain In the gap, use the chain drive to pull the onion up and lift it to the rear end of the chain conveyor mechanism. When the lifted and transported onions reach the leaf cutting mechanism, the onion will be separated from the stem and leaf, and the cut leaves will continue to be transported along the chain conveyor mechanism to the rear end, the severed stem will fall freely; The cut stems fall freely into the stem screw conveying device, and the stem screw conveying device concentrates and transports the fallen stems from both sides to the middle, and outputs them from the middle outlet; the cut leaves are transported along the chain conveying mechanism of the harvesting device After reaching the end of the rear end, it falls into the leaf screw conveying device, and the leaf screw conveying device transports the cut leaves to one side of the whole machine, and falls to the ground from the side outlet; The clay on the surface of the stems falling from the outlet of the stem screw conveying device is shaken off by the soil sieving device, and the rolled stems are received on the moving plate of the lifting conveying device, and the stems are lifted to a certain height for loading into the storage box.

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