Ginkgo leaf harvesting table, ginkgo leaf harvester and ginkgo leaf harvesting method

Abstract

The invention relates to a ginkgo leaf harvesting table, a ginkgo leaf harvester and a ginkgo leaf harvesting method.The structure of the ginkgo leaf harvesting table comprises a harvesting table frame, at least one picking mechanism is arranged on the harvesting table frame, each picking mechanism comprises two sets of picking rollers arranged in a bilateral symmetry mode, and the number of each set of picking rollers is at least one; the two sets of picking rollers are close to each other to form a plant channel, conveyors are arranged below the two sides of the picking mechanism respectively, a cover body is arranged on the harvesting rack, and a plant inlet and a plant outlet corresponding to the plant channel are formed in the front end and the rear end of the cover body respectively. The picking roller and the conveyor are obliquely arranged front and back, and the height of the picking roller and the height of the conveyor are gradually increased from front to back. The ginkgo leaf harvester comprises a vehicle body, a lifting device, a material box and a ginkgo leaf harvesting table. The ginkgo leaf picking machine can greatly improve the harvesting efficiency of ginkgo leaves and reduce the labor cost, and is suitable for ginkgo leaf picking operation of a ginkgo tree dwarf close planting technology.

Description

Technical Field

[0001] The present invention relates to a ginkgo leaf harvesting device, in particular to a ginkgo leaf harvesting platform, a ginkgo leaf harvester and a ginkgo leaf harvesting method. Background Art

[0002] Ginkgo biloba leaves are cultivated as an economic crop because of their medicinal value. In order to facilitate the picking of ginkgo leaves, the ginkgo tree dwarfing and dense planting technology is adopted. However, there is a lack of mechanical equipment dedicated to ginkgo leaf picking, and manual picking is still basically used, resulting in low picking efficiency and high labor costs.

[0003] Therefore, there is an urgent need for a mechanized device for harvesting ginkgo leaves to improve the harvesting efficiency of ginkgo leaves and reduce labor costs. Summary of the Invention

[0004] The purpose of the present invention is to provide a ginkgo leaf harvesting platform and a ginkgo leaf harvesting machine to solve the problems of low efficiency and high labor cost of manual picking of ginkgo leaves.

[0005] The present invention is implemented as follows: a ginkgo leaf harvesting platform, including a harvesting platform frame, on which at least one picking mechanism is arranged, the picking mechanism including two groups of picking rollers arranged symmetrically on the left and right, each group of picking rollers having at least one picking roller, the two groups of picking rollers being close to each other to form a plant channel, conveyors are respectively arranged below both sides of the picking mechanism, a cover body is respectively arranged on the harvesting platform, and a plant entrance and a plant exit corresponding to the plant channel are respectively opened at the front and rear ends of the cover body.

[0006] As a further improvement of the ginkgo leaf harvesting platform of the present invention, the picking rollers and the conveyor are both arranged to be tilted forward and backward, and the heights of the picking rollers and the conveyor gradually increase from front to back.

[0007] As a further improvement of the ginkgo leaf harvesting platform of the present invention, there are a plurality of picking mechanisms, and the plurality of picking mechanisms are arranged side by side on the left and right.

[0008] As a further improvement of the ginkgo leaf harvesting platform of the present invention, a material receiving bin is provided at the rear end of the harvesting platform frame, a material conveying auger is provided in the material receiving bin, and the ends of all the conveyors extend into the material receiving bin.

[0009] As a further improvement of the ginkgo leaf harvesting station of the present invention, the picking roller includes a roller shaft and a combing brush arranged on the roller shaft.

[0010] As a further improvement of the ginkgo leaf harvesting platform of the present invention, a straw divider is provided in front of the harvesting platform frame, and the straw divider is located on both sides of the plant entrance.

[0011] As a further improvement of the ginkgo leaf harvesting platform of the present invention, branch gathering rods are respectively provided on both sides above the plant channel. The length direction of the branch gathering rods is consistent with the axial direction of the picking roller. The front and rear ends of the branch gathering rods are respectively connected to the harvesting platform through elastic adjustment mechanisms.

[0012] As a further improvement of the ginkgo leaf harvesting platform of the present invention, the elastic adjustment mechanism includes a connecting head, a telescopic rod, a sleeve, a spring and an anti-slip nut. The end of the branch gathering rod is fixedly connected to the connecting head, and the sleeve is fixedly set on the harvesting platform. One end of the telescopic rod is a hinged head, and the other end of the telescopic rod passes through the sleeve and is threadedly connected to the anti-slip nut at the end. The connecting head is hinged to the hinged head, and the spring is sleeved on the telescopic rod, and the two ends of the spring are respectively in contact with the hinged head and the sleeve.

[0013] The present invention also discloses a ginkgo leaf harvester, including a vehicle body, an elevator, a material box and a ginkgo leaf harvesting platform; the ginkgo leaf harvesting platform is arranged at the front end of the vehicle body, and the elevator is arranged between the material box and the ginkgo leaf harvesting platform, for transporting the ginkgo leaves harvested by the ginkgo leaf harvesting platform to the material box.

[0014] As a further improvement of the ginkgo leaf harvester of the present invention, the lifting device includes a first elevator and a second elevator, a first elevator and a second elevator.

[0015] The invention also discloses a ginkgo leaf harvesting method, which is implemented based on a ginkgo leaf harvester and includes the following steps.

[0016] a. The ginkgo leaf harvesting platform moves along the row of ginkgo trees with the vehicle body. The plant entrances on the cover body correspond to the ginkgo trees. The ginkgo trees in the same row pass through the plant entrances and enter the plant passages in the cover body in turn.

[0017] b. For the ginkgo tree that gradually moves backward in the plant channel, the branch-gathering rods on the left and right sides gradually gather the branches on the left and right sides of the ginkgo tree upward from the middle and lower part of the ginkgo tree.

[0018] c. The picking roller on the left side of the plant channel rotates counterclockwise, and the picking roller on the right side of the plant channel rotates clockwise to comb the branches and leaves of the ginkgo tree, hitting the ginkgo leaves from the bottom to the top to separate them from the branches.

[0019] d. The combed ginkgo leaves move to both sides along with the picking rollers and fall down and gather on the conveyors on both sides.

[0020] e. The ginkgo leaves are transported out of the cover by a conveyor.

[0021] Furthermore, there are two picking mechanisms in total and the two picking mechanisms are arranged side by side on the left and right. A receiving bin is provided at the rear end of the harvesting stand, and a feeding auger is provided in the receiving bin. The ends of all the conveyors extend into the receiving bin, and a discharge port is provided at the bottom in the middle of the receiving bin. The left and right parts of the feeding auger have opposite rotation directions; the ginkgo leaves in the receiving bin are transported to the middle by the feeding auger and output to the elevator through the discharge port, and the elevator transports the ginkgo leaves to the material box.

[0022] The ginkgo leaf harvesting platform of the present invention is provided with a picking mechanism in a cover body, and a plant channel is formed between two groups of picking rollers symmetrically arranged on the left and right. After the ginkgo tree enters the plant channel, the picking rollers on both sides pick the ginkgo leaves, and the picked ginkgo leaves fall onto the conveyors below the two sides of the picking mechanism and are transported backward by the conveyors, thereby realizing the automatic picking operation of the ginkgo leaves.

[0023] The roller shaft of the picking roller rotates in a specific direction, and the combing brush on the roller shaft hits the ginkgo leaves on the ginkgo tree to make the ginkgo leaves fall off. The combing brush can minimize the damage to the branches or leaves of the ginkgo tree and ensure the quality of the picked ginkgo leaves.

[0024] The picking rollers and the conveyor are gradually increased in height from front to back, so that the overall height of the picking mechanism is greater than the height of the dwarfed ginkgo tree. The ginkgo tree can be picked as a whole when passing through the picking mechanism.

[0025] After the ginkgo tree enters the plant tunnel, its upper branches are gathered by the gathering rods on both sides. The gathered branches are more easily inserted between the picking rollers, facilitating the collection and picking of ginkgo leaves. At the same time, the front and rear ends of the gathering rods are connected to the harvesting platform through elastic adjustment mechanisms. This can prevent the branches from excessive deformation and breakage during gathering, thus protecting the branches.

[0026] The ginkgo leaf harvester of the present invention is provided with the above-mentioned ginkgo leaf harvesting platform, and automatically transports the picked ginkgo leaves into a material box through an elevator, thereby realizing the automatic picking operation of the ginkgo leaves.

[0027] The invention can greatly improve the harvesting efficiency of ginkgo leaves, reduce labor costs, and is suitable for ginkgo leaf picking operations in a ginkgo tree dwarfing and dense planting technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the ginkgo leaf harvesting platform of the present invention.

[0029] Figure 2 yes Figure 1 Right side view after removing the crop divider.

[0030] Figure 3It is a structural diagram of the material receiving bin and the auger of the present invention.

[0031] Figure 4 It is a structural diagram of the elastic adjustment mechanism of the present invention.

[0032] Figure 5 It is a structural diagram of the ginkgo leaf harvester of the present invention.

[0033] In the figure: 1. Vehicle body; 2. Ginkgo leaf harvesting platform; 3. First elevator; 4. Second elevator; 5. Material box; 2-1. Harvesting platform; 2-2. Picking roller; 2-3. Conveyor; 2-4. Cover; 2-5. Branch gathering rod; 2-6. Elastic adjustment mechanism; 2-7. Straw divider; 2-8. Material collecting bin; 2-9. Feeding auger; 2-10. Guide roller; 2-11. Feed inlet; 2-12. Feed outlet; 2-2-1. Roller; 2-2-2. Combing brush; 2-4-1. Plant entrance; 2-6-1. Connector; 2-6-2. Hinge joint; 2-6-3. Telescopic rod; 2-6-4. Spring; 2-6-5. Sleeve; 2-6-6. Anti-slip nut. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used to indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are used solely to facilitate the description of the present invention and to simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, terms such as "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Example 1 like Figure 1 、 Figure 2 As shown, this embodiment is a ginkgo leaf harvesting platform 2, which mainly includes a harvesting platform frame 2-1, a cover body 2-4, a picking mechanism, a material collecting bin 2-8, an auger and a conveying device.

[0037] The cover body 2-4, picking mechanism, material collecting bin 2-8, auger and conveying device are installed on the harvesting platform 2-1. The harvesting platform 2-1 can be a frame structure formed by connecting square tubes. The cover body 2-4 is a steel plate. The steel plate covers the harvesting platform 2-1 to form the cover body 2-4 structure. The cover body 2-4 is mainly used to accommodate the picking mechanism.

[0038] Among them, there is at least one picking mechanism, and each picking mechanism includes two groups of picking rollers 2-2 on the left and right. The roller shaft 2-2-1 of the picking roller 2-2 is in the front-to-back direction. The number of picking rollers 2-2 in each group is at least one. In this embodiment, the number of picking rollers 2-2 in each group is two, and the two picking rollers 2-2 in each group are arranged side by side up and down. The two groups of picking rollers 2-2 are arranged symmetrically with each other on the left and right, so that a plant channel for plants to pass through is formed between the two groups of picking rollers 2-2. In order to ensure the picking effect, the left and right groups of picking rollers 2-2 are close to each other, so that when the plants pass through, the picking rollers 2-2 are in full contact with the plants.

[0039] The picking roller 2-2 includes a roller shaft 2-2-1 and a combing brush 2-2-2 mounted on the roller shaft 2-2-1. The combing brushes 2-2-2 are made of a flexible material and are evenly distributed on the roller shaft 2-2-1. The combing brushes 2-2-2 are perpendicular to the axis of the roller shaft 2-2-1. The high-speed rotation of the roller shaft 2-2-1 allows the combing brushes 2-2-2 to remove ginkgo leaves from the branches, minimizing damage to the branches and leaves.

[0040] Conveyors 2-3 are respectively provided below both sides of each picking mechanism, and the conveying direction of the conveyors 2-3 is the front-back direction.

[0041] A plant entrance 2-4-1 and a plant exit corresponding to the plant passage are respectively provided at the front and rear ends of the cover body 2-4. The ginkgo plant enters the cover body 2-4 through the plant entrance 2-4-1, passes through the picking mechanism, and leaves the cover body 2-4 through the plant exit.

[0042] Among the two groups of picking rollers 2-2, the picking rollers 2-2 on the left rotate counterclockwise, and the picking rollers 2-2 on the right rotate clockwise, combing the ginkgo leaves upward to both sides. Due to the presence of the cover body 2-4, the ginkgo leaves picked during the picking process will remain inside the cover body 2-4 and fall onto the conveyors 2-3 on both sides, and are transported backward by the conveyors 2-3.

[0043] The conveyor 2-3 is specifically a belt conveying mechanism.

[0044] The picking roller 2-2 and the conveyor 2-3 are both tilted in front and back, and the picking roller 2-2 and the conveyor 2-3 are gradually increased in height from front to back. The tilted picking roller 2-2 can gradually comb the ginkgo trees from bottom to top.

[0045] In this embodiment, there are two picking mechanisms, which are arranged side by side in the cover 2-4, and can simultaneously perform picking operations on two rows of ginkgo trees.

[0046] like Figure 1 、 Figure 3 As shown, a receiving bin 2-8 is provided at the rear end of the harvesting stand 2-1. A feeding auger 2-9 is provided within the receiving bin 2-8. The receiving bin 2-8 is provided with a plurality of feed ports 2-11. The ends of all conveyors 2-3 extend into the receiving bin 2-8 through corresponding feed ports 2-11. The ginkgo leaves picked by the picking mechanism are transported backwards into the receiving bin 2-8 via the conveyors 2-3. A discharge port 2-12 is provided at the bottom of the middle portion of the receiving bin 2-8. The left and right parts of the feeding auger 2-9 rotate in opposite directions. The feeding auger 2-9 can transport the ginkgo leaves in the receiving bin 2-8 to the middle and discharge the ginkgo leaves through the discharge port 2-12.

[0047] The feeding auger 2-9 can specifically be a shaftless spiral auger.

[0048] In order to facilitate the delivery of ginkgo trees into the plant channel, a straw divider 2-7 is provided in front of the harvesting stand 2-1. The straw divider 2-7 is located on both sides of the plant entrance 2-4-1. The straw divider 2-7 can separate plants in different rows from each other to avoid interference between ginkgo trees in different rows.

[0049] A branch gathering rod 2-5 is provided on each side above the plant passage. The length of the branch gathering rod 2-5 is aligned with the axial direction of the picking roller 2-2, and the length of the branch gathering rod 2-5 is substantially the same as the length of the picking roller 2-2. The two branch gathering rods 2-5 are located above the picking roller 2-2, and the distance between the two branch gathering rods 2-5 is less than the distance between the roller shafts 2-2-1 of the left and right picking rollers 2-2 of the plant passage. The front and rear ends of the branch gathering rod 2-5 are connected to the harvesting stand 2-1 via horizontally arranged elastic adjustment mechanisms 2-6. The elastic adjustment mechanisms 2-6 cause the two branch gathering rods 2-5 to move closer to each other after being stretched apart by the ginkgo tree, thereby gathering the branches on both sides of the ginkgo tree toward the center, making the gathered ginkgo tree easier to harvest.

[0050] A horizontal guide roller 2-10 is provided in front of the upper part of the plant entrance 2-4-1. For a ginkgo tree that is higher than the plant entrance 2-4-1, the upper part of the ginkgo tree is bent by the blocking of the guide roller 2-10 to facilitate passing through the plant entrance 2-4-1, thereby preventing the plant from being damaged by contact and friction with the cover body 2-4.

[0051] Two rows of sealing brushes are provided at the plant entrance 2-4-1. The two rows of sealing brushes can seal the plant entrance 2-4-1 to prevent the ginkgo leaves picked from the cover 2-4 from escaping, while the plants can easily pass through the sealing brushes.

[0052] Among them, such as Figure 4 As shown, the elastic adjustment mechanism 2-6 includes a connector 2-6-1, a telescopic rod 2-6-3, a sleeve 2-6-5, a spring 2-6-4, and an anti-slip nut 2-6-6. The sleeve 2-6-5 is directly or indirectly fixed to the harvesting stand 2-1. One end of the telescopic rod 2-6-3 is a hinged joint 2-6-2. The other end of the telescopic rod 2-6-3 passes through the sleeve 2-6-5 and is threadedly connected to the anti-slip nut 2-6-6 at the end. The spring 2-6-4 is sleeved on the telescopic rod 2-6-3, and the two ends of the spring 2-6-4 are respectively in contact with the hinged joint 2-6-2 and the sleeve 2-6-5. The connector 2-6-1 is hingedly provided on the hinged joint 2-6-2. The end of the branch gathering rod 2-5 is fixedly connected to the connector 2-6-1 by plugging, welding, or other connection methods. When the branch gathering rod 2-5 is stretched out, the telescopic rod 2-6-3 moves outward and compresses the spring 2-6-4. When no plants pass through, the branch gathering rod 2-5 is reset under the action of the spring 2-6-4.

[0053] Example 2 like Figure 5 As shown, this embodiment is a ginkgo leaf harvester comprising a vehicle body, an elevator, a feed box 5, and a ginkgo leaf harvesting platform 2. The vehicle body, elevator, and feed box 5 are all conventional. The ginkgo leaf harvesting platform 2 is located at the front end of the vehicle body. The detailed structure of the ginkgo leaf harvesting platform 2 is detailed in Example 1. The elevator is located between the feed box 5 and the ginkgo leaf harvesting platform 2 to transport the ginkgo leaves harvested by the ginkgo leaf harvesting platform 2 to the feed box 5.

[0054] The lifting device includes a first lift 3 and a second lift 4. The front end of the first lift 3 and the second lift 4 is located below the discharge port 2-12 of the receiving bin 2-8.

[0055] Example 3 This embodiment is a ginkgo leaf harvesting method, which is based on the ginkgo leaf harvester in Example 2 and is suitable for dwarfing and densely planted ginkgo trees. The technology for dwarfing and densely planted ginkgo trees belongs to the existing technology and will not be described here. The dwarfing and densely planted ginkgo trees are shorter and have a higher plant density, which is convenient for mechanized harvesting. This method includes the following steps.

[0056] a. Start the ginkgo leaf harvester and start all parts of the machine. Adjust the position of the vehicle body 1 so that the plant entrance 2-4-1 on the cover 2-4 corresponds to the ginkgo tree plant. The ginkgo leaf harvesting platform 2 moves along the row of ginkgo trees with the vehicle body 1. During the movement of the vehicle body 1, the ginkgo trees in different rows are separated from each other by the divider 2-7. The ginkgo trees in the same row pass through the plant entrance 2-4-1 and enter the plant channel in the cover 2-4 in turn. The picking mechanism in the cover 2-4 then performs the ginkgo leaf picking operation in turn.

[0057] b. For the ginkgo tree that is gradually moving backward relative to the ginkgo leaf harvester in the plant channel, the branch-collecting rods 2-5 on the left and right sides gradually gather the branches on the left and right sides of the ginkgo tree upward from the middle and lower part of the ginkgo tree.

[0058] The upper part of the trunk of the ginkgo tree has branches in different directions distributed around it. Since the picking rollers 2-2 on the left and right sides are close to each other, when the ginkgo tree passes directly through the plant channel, the branches on the left and right sides of the ginkgo tree will interfere with the picking rollers 2-2 on the left and right sides, affecting the picking effect of the picking rollers 2-2 and easily causing the ginkgo leaves and branches to break and be damaged.

[0059] Since the branch gathering rod 2-5 is tilted upward and backward, when the ginkgo tree passes by, the branch gathering rod 2-5 gradually gathers the branches on the left and right sides of the ginkgo tree upward. The thickness of the ginkgo branches and leaves after gathering is smaller in the left and right directions. The ginkgo branches and leaves only come into contact with the combing brush 2-2-2 on the picking roller 2-2, and the combing brush 2-2-2 is flexible. At the same time, since the branches are gathered upward, the picking roller 2-2 also combs upward from the lower right, and the combing direction is consistent with the length direction of the branches, thereby avoiding damage to the branches.

[0060] When the branches of the ginkgo tree are relatively hard, it is easy to break the branches by forcibly gathering them through the gathering rods 2-5. Therefore, further, the two ends of the gathering rods 2-5 are installed on the harvesting stand 2-1 through elastic adjustment mechanisms 2-6, so that the distance between the two gathering rods 2-5 can be adaptively adjusted to avoid damage to the branches.

[0061] c. The picking roller 2-2 on the left side of the plant channel rotates counterclockwise, and the picking roller 2-2 on the right side of the plant channel rotates clockwise. The combing brush 2-2-2 on the picking roller 2-2 combs the branches and leaves of the ginkgo tree, and hits the ginkgo leaves from the bottom to the top to separate them from the branches.

[0062] The combing force of the combing brush 2-2-2 is adjusted by the rotation speed of the picking roller 2-2.

[0063] d. The combed ginkgo leaves move to the left and right sides with the picking roller 2-2. Under the restriction of the cover 2-4, the ginkgo leaves fall and gather on the left and right sides of the conveyor 2-3.

[0064] e. The ginkgo leaves are output from the cover 2-4 to the outside by the conveyor 2-3.

[0065] The conveyor 2-3 runs in the front-to-back direction, and outputs the ginkgo leaves from the bottom of the left and right sides of the cover body 2-4 backward to the outside of the cover body 2-4.

[0066] Furthermore, there are two picking mechanisms, which are arranged side by side, so that the ginkgo leaf harvester can simultaneously pick two rows of ginkgo trees. A receiving bin 2-8 is provided at the rear end of the harvesting platform 2-1, and a feeding auger 2-9 is provided in the receiving bin 2-8. The ends of all conveyors 2-3 extend into the receiving bin 2-8, and a discharge port 2-12 is provided at the bottom of the middle part of the receiving bin 2-8. The left and right parts of the feeding auger 2-9 rotate in opposite directions. The feeding auger 2-9 transports the ginkgo leaves in the receiving bin 2-8 to the middle and outputs them to the elevator through the discharge port 2-12. The elevator then transports the ginkgo leaves to the material box 5 on the vehicle body 1.

[0067] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ginkgo leaf harvesting station, characterized in that: The utility model comprises a harvesting stand, on which at least one picking mechanism is arranged, the picking mechanism comprises two groups of picking rollers arranged symmetrically on the left and right, each group of picking rollers has at least one picking roller, the two groups of picking rollers are close to each other to form a plant channel, conveyors are respectively provided below both sides of the picking mechanism, a cover body is provided on the harvesting stand, and a plant entrance and a plant exit corresponding to the plant channel are respectively provided at the front and rear ends of the cover body; the picking rollers and the conveyors are arranged to be tilted forward and backward, and the heights of the picking rollers and the conveyors gradually increase from front to back; branch gathering rods are respectively provided on both sides above the plant channel, the length direction of the branch gathering rods is consistent with the axial direction of the picking rollers, and the front and rear ends of the branch gathering rods are respectively connected to the harvesting stand through elastic adjustment mechanisms.

2. The ginkgo leaf harvesting station according to claim 1, characterized in that: There are several picking mechanisms in total, and the picking mechanisms are arranged side by side on the left and right.

3. The ginkgo leaf harvesting station according to claim 1, characterized in that: A material receiving bin is provided at the rear end of the harvesting stand, a material conveying auger is provided in the material receiving bin, and the ends of all the conveyors extend into the material receiving bin.

4. The ginkgo leaf harvesting station according to claim 1, characterized in that The picking roller comprises a roller shaft and a combing brush arranged on the roller shaft.

5. The ginkgo leaf harvesting station according to claim 1, characterized in that: A straw divider is provided in front of the harvesting stand and is located on both sides of the plant entrance.

6. The ginkgo leaf harvesting station according to claim 1, characterized in that The elastic adjustment mechanism includes a connecting head, a telescopic rod, a sleeve, a spring and an anti-slip nut. The end of the branch-gathering rod is fixedly connected to the connecting head. The sleeve is fixedly set on the harvesting stand. One end of the telescopic rod is a hinged joint. The other end of the telescopic rod passes through the sleeve and is threadedly connected to the anti-slip nut at the end. The connecting head is hinged to the hinged joint. The spring is sleeved on the telescopic rod, and the two ends of the spring are respectively in contact with the hinged joint and the sleeve.

7. A ginkgo leaf harvester, characterized in that: It comprises a vehicle body, an elevating device, a material box and a ginkgo leaf harvesting platform as described in any one of claims 1 to 6; the ginkgo leaf harvesting platform is arranged at the front end of the vehicle body, and the elevating device is arranged between the material box and the ginkgo leaf harvesting platform, and is used to transport the ginkgo leaves harvested by the ginkgo leaf harvesting platform to the material box.

8. The ginkgo leaf harvester according to claim 7, characterized in that: The lifting device includes a first lift and a second lift, a first lift and a second lift.

9. A method for harvesting ginkgo leaves, characterized in that: The ginkgo leaf harvester according to claim 7 or 8 is implemented, comprising the following steps: a. The ginkgo leaf harvesting platform moves along the row of ginkgo trees with the vehicle. The plant entrance on the cover corresponds to the ginkgo tree plant. The ginkgo trees in the same row pass through the plant entrance and enter the plant channel inside the cover in turn. b. For ginkgo trees that gradually move backward within the plant channel, the branch-collecting rods on both sides gradually gather the branches on both sides of the ginkgo tree upward from the middle and lower parts of the tree; c. The picking roller on the left side of the plant channel rotates counterclockwise, and the picking roller on the right side of the plant channel rotates clockwise to comb the branches and leaves of the ginkgo tree, hitting the ginkgo leaves from the bottom to the top so that the leaves are separated from the branches; d. The combed ginkgo leaves move to both sides with the picking rollers and fall down and gather on the conveyors on both sides; e. The ginkgo leaves are transported out of the cover by a conveyor.

10. The method for harvesting ginkgo leaves according to claim 9, wherein: There are two picking mechanisms in total and the two picking mechanisms are arranged side by side on the left and right. A receiving bin is provided at the rear end of the harvesting stand, and a feeding auger is provided in the receiving bin. The ends of all the conveyors extend into the receiving bin, and a discharge port is provided at the bottom in the middle of the receiving bin. The left and right parts of the feeding auger have opposite rotation directions. The ginkgo leaves in the receiving bin are transported to the middle by the feeding auger and output to the elevator through the discharge port, and the elevator transports the ginkgo leaves to the material box.

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