CN115735521A - Vehicle-mounted houttuynia cordata harvesting and winding drum mechanism and using method thereof - Google Patents

Abstract

The invention provides a vehicle-mounted Houttuynia harvesting reel mechanism and a use method, which includes a reel mechanism, and the reel mechanism is composed of two pairs of harvesting reels with the same structure and symmetrically arranged, and each pair of harvesting reels The drums are respectively composed of outer drums, inner drums and drum claws; each pair of harvesting drums is respectively fixedly installed on the movable support plates of two groups of docking mechanisms, and two pairs of harvesting drums pass through two The docking mechanism realizes the docking and separation; the docking mechanism docks the two groups of harvesting reels through the movement of the screw, and locks them with the end face locking disc; the outer reel and the inner reel are locked by the locking mechanism and release to control the retraction and extension of the reel claw; the retraction or extension of the reel claw is controlled by the reel claw telescopic mechanism. During the winding process, the damage and breakage of the Houttuynia cordata roots are reduced, and the waste is less, while improving the working efficiency and reducing the labor intensity.

Description

Vehicle-mounted Houttuynia harvesting reel mechanism and usage method

technical field

The invention relates to the technical field of agricultural machinery, in particular to a vehicle-mounted houttuynia harvesting reel mechanism and a use method.

Background technique

The main function of Houttuynia cordata is the rhizome that grows underground. Therefore, when harvesting Houttuynia cordata, it is necessary to harvest the Houttuynia cordata roots under the soil surface completely, and then clean up the soil on the Houttuynia cordata roots. The existing Houttuynia planting is divided into two planting methods: dry field planting and paddy field planting. The soil in the dry field is loose, and the soil on the roots of Houttuynia cordata is mainly shaken off by mechanical vibration, but this method is easy to damage the roots of Houttuynia cordata. Therefore, it affects the quality of Houttuynia cordata sold. The paddy field soil is clay, which is relatively viscous. Generally, high-pressure water guns are used to continuously wash the soil to wash out the roots of Houttuynia cordata, and then collect them manually. The traditional harvesting method of Houttuynia cordata has low working efficiency and high labor intensity. With the continuous expansion of the planting area of Houttuynia cordata, the existing method of harvesting Houttuynia cordata roots cannot meet the large-scale and high-efficiency needs. Harvesting During the process, the rhizome will be damaged or even broken, which not only directly affects its quality, but also leads to serious waste.

The team of the inventors, on 2022.01.11, CN 113906891 A, disclosed a harvesting device and method for Houttuynia cordata, by arranging corresponding collection mechanisms on the harvesting vehicle and washing with high-pressure water to realize the recovery of Houttuynia cordata planted in dry fields. Harvesting, cannot be well adapted to the harvesting of Houttuynia cordata with large sticky soil in paddy fields, and the rhizomes are easy to be damaged during the harvesting process;

On 2022.05.13, CN 114467465 A disclosed an integrated machine for harvesting and cleaning Houttuynia cordata in paddy fields and a harvesting method. The excavation of Houttuynia cordata was carried out by setting up an excavating mechanism, but during the excavation process of this type of excavating mechanism, it is easy to Cause the entanglement of Houttuynia cordata on the reel, after winding, the rhizome of Houttuynia cordata needs to be cut off manually, so the above-mentioned harvesting drum is inconvenient to use;

On 2022.08.30, CN 114946373 A disclosed the houttuynia harvester's rake self-turning harvesting mechanism. This harvesting mechanism is mainly designed for the defects of the digging mechanism in CN 114467465 A, and can realize harvesting. It is an integrated process of collecting and unloading, but it is also used as the walking power mechanism of the whole harvesting device, and the overall harvesting efficiency is low, so it cannot be applied to the harvesting vehicle in CN 113906891 A.

Based on this, it is necessary to design a harvesting reel that can be carried on the harvesting vehicle, so as to improve the harvesting efficiency of Houttuynia cordata without damaging the rhizome of Houttuynia cordata.

Contents of the invention

The purpose of this invention is to propose a vehicle-mounted Houttuynia harvesting reel mechanism, which can realize the automatic winding of Houttuynia roots, reduce damage and breakage of Houttuynia roots during the winding process, reduce waste, and improve work efficiency at the same time , Reduce labor intensity.

In order to solve the above-mentioned technical problems, the present invention proposes the following technical solutions: the vehicle-mounted Houttuynia cordata harvesting reel mechanism, which includes a reel mechanism, and the reel mechanism is composed of two pairs of identical structures and symmetrically arranged harvesting reels, Each pair of the harvesting reels is composed of an outer reel, an inner reel, and a reel claw; The docking and separation of the harvesting drums is realized through two sets of docking mechanisms; the docking mechanism docks the two sets of harvesting drums through the movement of the screw, and is locked by the end face locking disc; the outer drum and the inner drum The locking and releasing are performed by the locking mechanism to control the retraction and extension of the reel claw; the retraction or extension of the reel claw is controlled by the reel claw telescopic mechanism.

The outer reel and the inner reel adopt a nested coaxial installation arrangement, and the inner reel is rotated inside the outer reel; the inner reel is fixedly installed on the reel, and the reel is connected with the reel for driving its rotation The power unit is connected, and the rotation of the reel drives the inner reel to rotate relative to the outer reel;

A plurality of webs are arranged inside the inner reel, reel claws are arranged inside the inner reel, and tail ends of the reel claws are hinged on the webs, and telescopic rods are installed between the reel claws and the webs; A first spring is set on the telescopic rod, which is used to ensure the extension and reset of the reel claw;

An arc-shaped groove structure for protruding out one end of the claw head of the reel is arranged between the inner reel and the outer reel.

The reel power device includes a first motor base fixed on the outer wall of the movable support plate, a first motor is fixedly installed on the first motor base, and an output shaft of the first motor is fixedly connected with the reel.

The arc-shaped groove structure includes an inner arc-shaped groove processed on the outer wall of the inner reel, the inner arc-shaped groove corresponds to the position of the reel claw, and the outer wall of the outer reel is located in the inner arc-shaped groove The position is processed with an outer arc-shaped groove; the central angle corresponding to the inner arc-shaped groove is greater than the corresponding central angle of the outer arc-shaped groove, and the reel claw can pass through the outer arc-shaped groove after extending out of the inner arc-shaped groove Realize its reverse blocking limit.

The docking mechanism includes a front support plate and a rear support plate, the front support plate and the rear support plate are connected and fixed by a guide rod, the movable support plate is slidably supported on the guide rod by a sliding sleeve, and the movable support plate Cooperate with the screw transmission device used to drive the sliding along the guide rod;

The lead screw transmission device includes a lead screw nut fixed on the movable support plate, the lead screw nut and the lead screw form a lead screw transmission cooperation, and the movable support plate can reciprocate on the two sets of guide rods through the rotation of the lead screw, Thereby driving the docking and returning of the reel mechanism;

The lead screw is connected with the output shaft of the second motor to provide power for forward or reverse rotation of the lead screw, and the second motor is fixed on the outer wall of the rear support plate;

The end-face locking discs are fixedly installed on the butt joint surfaces of two pairs of harvesting reels, so that after the harvesting reels are docked, they are locked by the end-face locking discs and rotate forward or reverse synchronously.

The locking mechanism includes a locking gear, a locking tooth block and an eccentric wheel, the locking gear is fixedly installed on the outer reel, the locking tooth block is installed on the fixing seat through a guide rod, and the second locking gear is installed on the guide rod. Spring, the eccentric wheel is installed on the movable support plate, the eccentric wheel is driven by the third motor, and the third motor is fixedly installed on the movable support plate through the third motor base, and the eccentric wheel locks the gear block by pushing Engage with the locking gear to realize the locking of the outer reel.

The reel claw telescopic mechanism includes an outer locking ring, an inner locking ring and a locking block, the outer locking ring is fixed on the outer reel, the inner locking ring is installed on the inner reel, and the locking block is installed inside to lock On the arc groove on the ring, the locking block and the outer locking ring are connected by a third spring, and the third spring is located between the locking block and the outer locking ring to ensure that the locking block is always aligned with the arc groove on the inner locking ring. contact for easy extension and retraction locking control of the reel jaws.

One end of the bottom of the locking block matched with the arc-shaped groove adopts an arc-shaped structure, and the other end adopts a right-angle structure, so that the relative position of the outer reel and the inner reel is locked after the relative rotation of the outer reel and the extension of the reel pawl.

The method of using the vehicle-mounted Houttuynia harvesting reel mechanism, when the harvesting reel mechanism is to be used to harvest Houttuynia cordata, the harvesting reel mechanism includes three states: initial state, working state and unloading state;

The specific usage method includes the following steps:

Step 1, in the initial state, the two groups of harvesting reels are docked, and the extension of the reel claws is controlled:

Firstly, the first motor located on the harvesting drum works to make the two pairs of symmetrically arranged harvesting drums move closer to the middle along the guide rod, and the two pairs of harvesting drums are docked and locked through the end face locking disc, and the second motor stops Work;

Then, the third motor in the locking mechanism drives the eccentric wheel to make the locking tooth block mesh with the locking gear and then stop the machine;

Finally, control the first motor to rotate forward to make the inner reel rotate until the inner reel drives its inner reel claws to fully extend and then stop;

Step 2, working state, harvesting reel to collect Houttuynia cordata root:

First, start the third motor in the locking mechanism to reverse, and drive the eccentric wheel to release the locking tooth block, so that the locking tooth block is separated from the locking gear;

Then, start the first motor to drive the reel on the inner reel to rotate forward. At this time, the outer reel rotates forward together with the inner reel, so that the claws of the reel catch the washed Houttuynia root, and continue to be rolled up synchronously and continuously Wash the Houttuynia cordata roots, cut off the Houttuynia cordata roots until the winding thickness of the Houttuynia cordata roots on the outer reel reaches a certain value;

Step 3, in the unloading state, the claws of the reel are retracted, and the reel is returned:

First, the third motor on the locking mechanism works to drive the eccentric wheel to rotate, and the eccentric wheel pushes the locking tooth block to mesh with the locking gear and locks the outer reel;

Then, the third motor stops working, and the first motor drives the inner reel to reverse so that the reel claws on the inner reel are retracted;

Finally, the second motor drives the two pairs of harvesting reels to return to corresponding positions and then stop, and the Houttuynia root is separated from the harvesting reels.

The present invention has following beneficial effect:

1. The present invention adopts a vehicle-mounted Houttuynia cordata harvesting reel mechanism, through which the washed Houttuynia cordata root is rolled up, and when the harvested cordage cordata root reaches a certain amount, The root of Houttuynia cordata is cut off, the whole harvesting process can be operated continuously, the damage to Houttuynia cordata in the harvesting process is small, the waste is less, and the operation efficiency is high. The harvesting reel mechanism and method of the invention are suitable for mechanized harvesting of Houttuynia cordata planted in a large area, and the operation is simple and the harvesting efficiency is high.

2. By adopting the above-mentioned cooperation between the outer reel and the inner reel, ensuring the relative rotation of the two can not only realize the extension and retraction control of the reel claws, but also realize the winding operation process of Houttuynia cordata. At the same time, it is also convenient for the subsequent uninstallation of Houttuynia cordata.

3 Through the cooperation of the above-mentioned reel claw, telescopic rod and arc groove structure, the extension and retraction control of the reel claw can be realized. When the reel claw is stretched out, it can be used to wind Houttuynia cordata.

4. The reel power device is mainly used to provide the power to rotate the reel, and then control the extension or retraction of the reel claws.

5. The above-mentioned docking mechanism is mainly used for the docking control of the two groups of harvesting reels, and then realizes the unloading of Houttuynia cordata by the harvesting reels. The unloading of Houttuynia cordata is realized by pulling out the harvesting reel as a whole.

6. The locking and unlocking of the outer reel can be realized through the locking mechanism, and it adopts the cam locking mechanism, which can conveniently control the locking and unlocking process, and the inner reel can only be driven when the outer reel is locked. Furthermore, the retraction or extension of the reel claw is realized by the inner reel.

7. The above-mentioned reel claw telescopic mechanism can ensure that after the reel claw is stretched out, the relative position locking of the inner reel and the outer reel can be realized, and then the locking of the extended state of the reel claw can be realized.

Description of drawings

The present invention will be further described below in conjunction with drawings and embodiments.

Fig. 1 is a three-dimensional structure diagram of the first viewing angle of the harvesting reel mechanism of the present invention.

Fig. 2 is a three-dimensional structure diagram of the harvesting reel mechanism of the present invention at a second viewing angle.

Fig. 3 is a front view of the harvesting reel mechanism of the present invention.

Fig. 4 is a right view of the harvesting reel mechanism of the present invention.

Fig. 5 is an exploded view of the drum of the harvesting drum mechanism of the present invention.

Fig. 6 is a right view of the reel of the harvesting reel mechanism of the present invention.

Fig. 7 is a first sectional view of the reel of the harvesting reel mechanism of the present invention.

Fig. 8 is a second sectional view of the reel of the harvesting reel mechanism of the present invention.

Fig. 9 is a three-dimensional view of the installation arrangement of the locking mechanism and the harvesting reel mechanism of the present invention.

Fig. 10 is a partial enlarged view of the locking mechanism in Fig. 9 of the present invention.

Fig. 11 is an unlocked state diagram of the locking mechanism of the present invention.

Fig. 12 is a diagram of the locking state of the locking mechanism of the present invention.

Fig. 13 is a state diagram of the initial separation of the two harvesting drums on the vehicle of the whole harvesting drum mechanism of the present invention.

Fig. 14 is a state view of the entire harvesting reel mechanism of the present invention when the two harvesting reels on the vehicle are connected and the paws of the reel are stretched out.

In the figure: harvesting reel 1, docking mechanism 2, locking mechanism 3, reel claw telescopic mechanism 4;

Outer reel 101, inner reel 102, reel claw 103, telescopic rod 104, first spring 105, reel 106, first motor 107, first motor 108;

Front support plate 201, movable support plate 202, guide rod 203, rear support plate 204, leading screw 205, leading screw nut 206, second motor 207, end face lock plate 208;

Locking gear 301, locking tooth block 302, eccentric wheel 303, guide rod 304, fixing seat 305, second spring 306, third motor 307, third motor seat 308;

The outer locking ring 401 , the inner locking ring 402 , the locking block 403 , and the third spring 404 .

Detailed ways

Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

Example 1:

Referring to Fig. 1-14, the vehicle-mounted Houttuynia harvesting reel mechanism includes a reel mechanism, and the reel mechanism is composed of two pairs of harvesting reels 1 with the same structure and arranged symmetrically. The reels 1 are composed of an outer reel 101, an inner reel 102 and a reel claw 103; The two pairs of harvesting reels 1 are docked and separated through two groups of docking mechanisms 2; the docking mechanism 2 moves the two groups of harvesting reels 1 through the movement of the screw 205, and is locked by the end face lock plate 208; The outer reel 101 and the inner reel 102 are locked and released by the locking mechanism 3 to control the retraction and extension of the reel claw 103; the retraction or extension of the reel claw 103 is controlled by the reel claw Telescopic mechanism 4 is controlled. By adopting the above-mentioned harvesting reel mechanism, it can be mounted on the Houttuynia harvesting vehicle to complete the winding-type harvesting for cleaning Houttuynia cordata, and after winding a certain amount, realize the automatic unloading of the Houttuynia cordata rhizome , and then complete the integrated operation process of harvesting and unloading, effectively avoiding damage to the rhizome of Houttuynia cordata, and improving its harvesting efficiency.

Further, the outer reel 101 and the inner reel 102 adopt a nested coaxial installation arrangement, and the inner reel 102 is rotatably arranged inside the outer reel 101; the inner reel 102 is fixedly installed on the reel 106, and the reel 106 is connected to the reel power device for driving its rotation, and the rotation of the reel 106 drives the inner reel 102 to rotate relative to the outer reel 101; by using the cooperation between the outer reel 101 and the inner reel 102, Guaranteeing the relative rotation of the two can not only realize the extension and retraction control of the drum claw 103, but also realize the winding process of Houttuynia cordata. At the same time, it is also convenient for the subsequent uninstallation of Houttuynia cordata.

Further, the inside of the inner drum 102 is provided with a plurality of webs, the drum claws 103 are arranged inside the inner drum 102, and the tail ends of the drum claws 103 are hinged on the webs, the drum claws 103 and the webs A telescopic rod 104 is installed between the plates; a first spring 105 is set on the telescopic rod 104, which is used to ensure that the reel claw 103 is stretched out and reset; Stretch out the arc groove structure of one end of the drum claw 103 head. Through the cooperation of the above-mentioned reel claw 103, telescopic rod 104 and arc-shaped groove structure, the extension and retraction control of the reel claw 103 can be realized. When the reel claw 103 is stretched out, it can be used to roll Houttuynia cordata. Winding, so that it is wound on the outer reel 101, when the reel claw 103 is retracted, it can be used to unload Houttuynia cordata, and then it is convenient to separate the rolled Houttuynia cordata from the outer reel 101.

During the specific extension process of the reel claw 103, the reel 106 drives the inner reel 102 to rotate forward, and then the inner reel 102 drives the web, and the inner reel 102 drives the reel claw 103 to protrude from the arc groove structure to the outer reel 101. During its stretching process, it is supported by the telescopic rod 104 and the first spring 105 to ensure its smooth stretching. When the reel claw 103 is behind, the Houttuynia cordata can be grasped and wound.

Further, the reel power device includes a first motor base 107 fixed on the outer wall of the movable support plate 202, a first motor 108 is fixedly installed on the first motor base 107, and the output shaft of the first motor 108 is connected to the The reels 106 are fixedly connected. The reel power device is mainly used to provide power for the rotation of the reel shaft 106 to control the extension or retraction of the reel claw 103 . During the working process, the reel 106 is driven by the first motor 108 , the inner reel 102 is driven by the reel 106 , and the reel claw 103 is driven by the inner reel 102 .

Further, the arc-shaped groove structure includes an inner arc-shaped groove processed on the outer wall of the inner reel 102, the inner arc-shaped groove corresponds to the position of the reel claw 103, and on the outer wall of the outer reel 101, And be positioned at the position of inner arc-shaped groove and be processed with outer arc-shaped groove; The central angle angle corresponding to described inner arc-shaped groove is greater than the angle of circle center angle corresponding to outer arc-shaped groove, and make reel claw 103 stretch out inner arc-shaped groove Afterwards, the reverse blocking limit can be realized through the outer arc groove. The extension and retraction control of the drum claw 103 can be realized through the above-mentioned arc-shaped groove structure.

Further, the docking mechanism 2 includes a front support plate 201 and a rear support plate 204, the front support plate 201 and the rear support plate 204 are connected and fixed by a guide rod 203, and the movable support plate 202 is slidably supported by a sliding sleeve On the guide rod 203 , the movable support plate 202 is connected with a screw drive device for driving to slide along the guide rod 203 . The above-mentioned docking mechanism 2 is mainly used for docking control of two groups of harvesting reels 1, and then realizes the unloading of Houttuynia cordata by the harvesting reels 1. The unloading of Houttuynia cordata is realized by pulling out the harvesting reel 1 as a whole.

Further, the lead screw transmission device includes a lead screw nut 206 fixed on the movable support plate 202, the lead screw nut 206 and the lead screw 205 form a lead screw transmission fit, and the movable support plate 202 can be moved by the rotation of the lead screw 205 Move back and forth on the two sets of guide rods 203 to drive the docking and retreat of the reel mechanism 1 . The lead screw 205 is connected with the output shaft of the second motor 207 to provide power for forward or reverse rotation of the lead screw 205 , and the second motor 207 is fixed on the outer wall of the rear support plate 204 . During the working process, the lead screw 205 is driven by the second motor 207 , and the lead screw 205 cooperates with the lead screw nut 206 to drive the movable support plate 202 to move, thereby driving the movement of the whole reel mechanism 1 .

Further, the end face locking disc 208 is fixedly installed on the docking surfaces of two pairs of harvesting reels, so that after the harvesting reels are docked, they are locked by the end face locking disc 208 and rotate forward or reverse synchronously.

Further, the locking mechanism 3 includes a locking gear 301, a locking tooth block 302 and an eccentric wheel 303, the locking gear 301 is fixedly installed on the outer drum 101, and the locking tooth block 302 is installed on the On the fixed seat 305, the second spring 306 is installed on the guide rod 304, and the eccentric wheel 303 is installed on the movable support plate 202, and the eccentric wheel 303 is driven by a third motor 307, and the third motor 307 is driven by a third motor 307. The motor base 308 is fixedly installed on the movable support plate 202 , and the eccentric wheel 303 realizes the locking of the outer reel 101 by pushing the locking tooth block 302 to engage with the locking gear 301 . The locking mechanism 3 can realize the locking and unlocking of the outer reel 101, and it adopts a cam locking mechanism, which can conveniently control the locking and unlocking process, and only when the outer reel 101 is locked can the inner roll be driven drum 102 , and then through the inner drum 102 to realize the retraction or extension of the drum claw 103 . In the specific working process, the third motor 307 in the locking mechanism 3 drives the eccentric wheel 303 to make the locking tooth block 302 mesh with the locking gear 301 and then stop the machine, and finally drives the first motor 108 to rotate forward to make the inner reel 102 rotate until the reel Stop after pawl 103 stretches out fully.

Further, the reel claw telescopic mechanism 4 includes an outer locking ring 401, an inner locking ring 402 and a locking block 403, the outer locking ring 401 is fixed on the outer reel 101, and the inner locking ring 402 is installed on the inner reel 102, the locking block 403 is installed on the arc groove on the inner locking ring 402, the locking block 403 and the outer locking ring 401 are connected through the third spring 404, and the third spring 404 is located between the locking block 403 and the outer locking ring 401. Between the locking rings 401 is ensured that the locking block 403 is always in contact with the arc groove on the inner locking ring 402 , which facilitates the extension and retraction locking control of the reel claw 103 . The above-mentioned reel claw telescopic mechanism 4 can ensure that after the reel claw 103 is extended, the relative position locking of the inner reel 102 and the outer reel 101 can be realized, and then the locking of the extended state of the reel claw 103 can be realized.

Further, one end of the bottom of the locking block 403 matching the arc groove adopts an arc structure, and the other end adopts a right-angle structure, so that the outer reel 101 and the inner reel 102 can rotate relative to each other and extend out behind the reel pawl 103 Relative position locking. Through the above-mentioned arc-shaped structure, the locking block 403 and the arc-shaped groove can realize the functions of forward relative rotation locking and reverse relative rotation unlocking.

Example 2:

The method of using the vehicle-mounted Houttuynia harvesting reel mechanism, when the harvesting reel mechanism is to be used to harvest Houttuynia cordata, the harvesting reel mechanism includes three states: initial state, working state and unloading state;

The specific usage method includes the following steps:

Step 1, in the initial state, the two groups of harvesting reels 1 are docked, and the extension of the reel claws 103 is controlled:

First, the first motor 108 located on the harvesting drum 1 works to make the two pairs of symmetrically arranged harvesting drums 1 move toward the middle along the guide rod 203, and the two pairs of harvesting drums 1 are docked and locked through the end face locking disc 208. tight, the second motor 108 stops working;

Then, the third motor 307 in the locking mechanism 3 drives the eccentric wheel 303 to make the locking tooth block 302 mesh with the locking gear 301 and then stop the machine;

Finally, control the first motor 108 to rotate forward to make the inner reel 102 rotate until the inner reel 102 drives its inner reel claw 103 to fully extend and then stop;

Step 2, working state, harvesting reel 1 to collect Houttuynia cordata root:

First, start the third motor 307 in the locking mechanism 3 to reverse, and drive the eccentric wheel 303 to release the locking tooth block 302, so that the locking tooth block 302 is separated from the locking gear 301;

Then, start the first motor 108 to drive the reel 106 on the inner reel 102 to rotate forward. At this time, the outer reel 101 rotates forward together with the inner reel 102, so that the reel claws 103 catch the washed Houttuynia root, and continue Synchronously roll up the cleaned Houttuynia roots continuously conveyed until the winding thickness of the Houttuynia roots on the outer reel 101 reaches a certain value, then cut off the Houttuynia roots;

Step 3, in the unloading state, the claws of the reel are retracted, and the reel is returned:

First, the third motor 307 on the locking mechanism 3 works to drive the eccentric wheel 303 to rotate, and the eccentric wheel 303 pushes the locking tooth block 302 to engage and lock with the locking gear 301 to lock the outer reel 101;

Then, the third motor 307 stops working, and the first motor 108 drives the inner reel 102 to reverse so that the reel claws 103 on the inner reel 102 are retracted;

Finally, the second motor 207 drives the two pairs of harvesting reels to return to corresponding positions respectively and then stops, and the Houttuynia cordata root is separated from the harvesting reels.

Claims (9)

1. The vehicle-mounted Houttuynia harvesting reel mechanism is characterized in that it includes a reel mechanism, and the reel mechanism is composed of two pairs of harvesting reels (1) with the same structure and arranged symmetrically. The harvesting reels (1) are respectively composed of an outer reel (101), an inner reel (102) and a reel claw (103); on the movable support plate (202) of the group docking mechanism (2), and the two pairs of harvesting reels (1) realize the docking and separation through the two groups of docking mechanisms (2); ) movement to dock the two groups of harvesting reels (1) and lock them with the end face locking disc (208); the outer reel (101) and the inner reel (102) are locked by the locking mechanism (3) Tightening and loosening to control the retraction and extension of the reel claw (103); the retraction or extension of the reel claw (103) is controlled by the reel claw telescopic mechanism (4). 2. The vehicle-mounted Houttuynia cordata harvesting reel mechanism according to claim 1, characterized in that: the outer reel (101) and the inner reel (102) adopt a nested coaxial installation arrangement, and the inner reel (102) The rotation is set inside the outer reel (101); the inner reel (102) is fixedly installed on the reel (106), and the reel (106) is connected with the reel power device for driving its rotation, and through The rotation of the reel (106) drives the inner reel (102) to rotate relative to the outer reel (101); The inner reel (102) is provided with a plurality of webs, and the reel claws (103) are arranged inside the inner reel (102), and the tail ends of the reel claws (103) are hinged on the webs. A telescopic rod (104) is installed between the drum claw (103) and the web; a first spring (105) is set on the telescopic rod (104), which is used to ensure that the reel claw (103) is extended and reset; An arc-shaped groove structure for extending the head end of the drum claw (103) is provided between the inner drum (102) and the outer drum (101). 3. The vehicle-mounted Houttuynia cordata harvesting reel mechanism according to claim 2, characterized in that: the reel power device includes a first motor seat (107) fixed on the outer wall of the movable support plate (202), A first motor (108) is fixedly installed on the first motor seat (107), and an output shaft of the first motor (108) is fixedly connected to the reel (106). 4. The vehicle-mounted Houttuynia cordata harvesting reel mechanism according to claim 2, characterized in that: the arc-shaped groove structure includes an inner arc-shaped groove processed on the outer wall of the inner reel (102), and the inner arc The groove corresponds to the position of the reel claw (103), and the outer wall of the outer reel (101) is processed with an outer arc groove at the position of the inner arc groove; the center of the circle corresponding to the inner arc groove The angle is greater than the center angle corresponding to the outer arc groove, and enables the drum claw (103) to achieve its reverse blocking limit through the outer arc groove after extending out of the inner arc groove. 5. The vehicle-mounted houttuynia harvesting reel mechanism according to claim 1, characterized in that: the docking mechanism (2) includes a front support plate (201) and a rear support plate (204), and the front support plate (201) and the rear support plate (204) are connected and fixed by a guide rod (203), and the movable support plate (202) is slidably supported on the guide rod (203) through a sliding sleeve, and the movable support plate (202) Cooperate with the lead screw transmission device used to drive the sliding along the guide rod (203); The lead screw transmission device includes a lead screw nut (206) fixed on the movable support plate (202), the lead screw nut (206) and the lead screw (205) form a lead screw transmission cooperation, and through the lead screw (205) The rotation enables the movable support plate (202) to reciprocate on the two sets of guide rods (203), thereby driving the docking and returning of the reel mechanism (1); The lead screw (205) is connected to the output shaft of the second motor (207) to provide power for the forward or reverse rotation of the lead screw (205), and the second motor (207) is fixed on the outer wall of the rear support plate (204) superior; The end face locking discs (208) are fixedly installed on the butt joint surfaces of two pairs of harvesting drums, so that after the harvesting drums are docked, they are locked by the end face locking discs (208) and rotate forward or reverse synchronously. 6. The vehicle-mounted houttuynia harvesting reel mechanism according to claim 1, characterized in that: the locking mechanism (3) includes a locking gear (301), a locking tooth block (302) and an eccentric wheel (303 ), the locking gear (301) is fixedly installed on the outer reel (101), the locking tooth block (302) is installed on the fixed seat (305) through the guide rod (304), and the guide rod (304) is installed There is a second spring (306), the eccentric wheel (303) is installed on the movable support plate (202), the eccentric wheel (303) is driven by a third motor (307), and the third motor (307) passes The third motor base (308) is fixedly installed on the movable support plate (202), and the eccentric wheel (303) realizes the rotation of the outer reel (101) by pushing the locking tooth block (302) to engage with the locking gear (301). locking. 7. The vehicle-mounted Houttuynia harvesting reel mechanism according to claim 1, characterized in that: the reel claw telescopic mechanism (4) includes an outer locking ring (401), an inner locking ring (402) and a locking block (403), the outer locking ring (401) is fixed on the outer reel (101), the inner locking ring (402) is installed on the inner reel (102), and the locking block (403) is installed inside to lock On the arc groove on the ring (402), the locking block (403) is connected with the outer locking ring (401) through the third spring (404), and the third spring (404) is located between the locking block (403) and the outer locking ring (401). The locking rings (401) ensure that the locking block (403) is always in contact with the arc groove on the inner locking ring (402), which is convenient for the extension and retraction locking control of the reel claw (103). 8. The vehicle-mounted Houttuynia cordata harvesting reel mechanism according to claim 7, characterized in that: one end of the bottom of the locking block (403) matching the arc-shaped groove adopts an arc-shaped structure, and the other end adopts a right-angle structure , and make the outer reel (101) and the inner reel (102) rotate relative to each other and lock the relative position after the reel claw (103) is stretched out. 9. The using method of the vehicle-mounted Houttuynia cordata harvesting reel mechanism described in any one of claims 1-8, is characterized in that, when the harvesting reel mechanism is to be used to harvest Houttuynia cordata, the harvesting reel mechanism altogether Contains 3 states: initial state, working state and unloading state; The specific usage method includes the following steps: Step 1, in the initial state, the two groups of harvesting reels (1) are docked, and the extension of the reel claws (103) is controlled: First, the first motor (108) located on the harvesting drum (1) works to make the two pairs of symmetrically arranged harvesting drums (1) move closer to the middle along the guide rod (203), and pass through the end face lock plate (208) The two pairs of harvesting reels (1) are docked and locked, and the second motor (108) stops working; Then, the third motor (307) in the locking mechanism (3) drives the eccentric wheel (303) to make the locking tooth block (302) engage and lock with the locking gear (301) and then stop; Finally, control the first motor (108) to rotate forward to make the inner reel (102) rotate until the inner reel (102) drives its inner reel claw (103) to fully extend and then stop; Step 2, working state, harvesting reel (1) to collect Houttuynia cordata root: First, start the third motor (307) in the locking mechanism (3) to reverse, and drive the eccentric wheel (303) to release the locking tooth block (302), so that the locking tooth block (302) is separated from the locking gear (301) ; Then, start the first motor (108) to drive the reel shaft (106) on the inner reel (102) to rotate forward, at this time, the outer reel (101) rotates forward together with the inner reel (102), so that the reel claw (103 ) to hook the rinsed Houttuynia roots, and continue to synchronously wind up the washed Houttuynia roots that are continuously conveyed until the winding thickness of the Houttuynia roots on the outer reel (101) reaches a certain value, then cut off the Houttuynia roots ; Step 3, in the unloading state, the claws of the reel are retracted, and the reel is returned: First, the third motor (307) on the locking mechanism (3) works, driving the eccentric wheel (303) to rotate, and the eccentric wheel (303) pushes the locking tooth block (302) to engage and lock with the locking gear (301), locking Outer reel (101); Then, the third motor (307) stops working, and the first motor (108) drives the inner drum (102) to reverse so that the drum claws (103) on the inner drum (102) retract; Finally, the second motor (207) drives the two pairs of harvesting reels to return to corresponding positions and then stops, and the Houttuynia root is separated from the harvesting reels.

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