A double-row adjustable distance celery harvester

Abstract

The application discloses a double-row adjustable distance celery harvester, which comprises a multi-depth soil breaking mechanism, a silkworm chrysalis type pulling mechanism, a multi-point infiltration type cleaning mechanism, an adjustable distance conveying mechanism, a chassis movement mechanism and a collecting basket. The adjustable distance support is arranged on the chassis movement mechanism. The main support of the adjustable distance support is divided into a left main support and a right main support which are driven to approach or move away from each other. The two sides of the main support are provided with a first auxiliary support and a second auxiliary support. The left main support and the first auxiliary support are driven to approach or move away from each other. The right main support and the second auxiliary support are driven to approach or move away from each other. The silkworm chrysalis type pulling mechanism is arranged below the chassis movement mechanism. The multi-point infiltration type cleaning mechanism and the adjustable distance conveying mechanism are arranged above the chassis movement mechanism. The silkworm chrysalis type pulling mechanism, the multi-point infiltration type cleaning mechanism and the adjustable distance conveying mechanism are driven to adjust the distance by the adjustable distance support. The celery is picked with a low damage rate. The unearthed celery is cleaned during the picking process, so that the subsequent processing cost is reduced.

Description

Technical Field

[0001] This invention relates to celery harvesters, specifically a double-row adjustable-distance celery harvester. Background Technology

[0002] In 2023, the market size of my country's vegetable industry was approximately 4,733.827 billion yuan. In recent years, the planting area and output of vegetables in China have been on the rise. In 2023, the sown area of ​​vegetables in my country reached 23,029,780 hectares, and the output was approximately 810.2658 million tons. Based on my country's rapid economic growth and the improvement of people's living standards, people are no longer satisfied with simply having enough to eat, but are pursuing healthier diets and lifestyles, leading to a year-on-year increase in vegetable consumption. Celery, in particular, is frequently consumed due to its high nutritional value and is known as a "good vegetable and good medicine." However, in recent years, the demand for celery has been increasing, leading to a surge in celery cultivation. Different varieties of celery vary in plant height, stem thickness, and root system, making it difficult for harvesters to achieve good harvesting results for all varieties. Furthermore, some harvesters have tensioning devices installed in their conveying structures, which damage the surface tissue of the celery, affecting its freshness. Therefore, researching a harvester that integrates flexible harvesting, cleaning, and packing is of great value.

[0003] Chinese invention patent CN107455076A discloses a row-aligned celery harvester. The harvester includes a frame, a power unit, a transmission unit, a traveling unit, a root-cutting device, a clamping and conveying device, a collecting device, and a handle. The power unit is connected to and provides power to the traveling and clamping and conveying devices via the transmission unit. The clamping and conveying device includes two conveyor frames fixed side-by-side at the front of the frame and drive wheels respectively positioned behind the two conveyor frames. A guide wheel is installed at the front end of each conveyor frame. A conveyor belt is wound around the guide wheel and drive wheel on the same conveyor frame. A row of tensioning devices that can rotate along the mounting point under force is installed on each conveyor frame. The guide wheels, conveyor belt, and tensioning devices form a conveying channel whose width gradually decreases from front to back. This invention results in low damage to the celery, and the harvested celery can be automatically and neatly arranged.

[0004] The problem it has is: First, without a mechanism to adjust the spacing, celery can only be harvested within a limited planting width, resulting in low adaptability.

[0005] Secondly, the lack of cleaning of the celery after it was unearthed increases the cost of secondary processing, and secondary processing will obviously cause more damage to the celery.

[0006] Third, no soil-breaking work was carried out during the harvesting process, and the celery roots had to be cut before harvesting, which is not conducive to preservation and sales. Summary of the Invention

[0007] The technical problem solved by this invention is to provide a double-row adjustable spacing celery harvester that can achieve low damage rate harvesting and can also wash the celery after it emerges from the ground during the harvesting process, so as to reduce subsequent processing costs.

[0008] A double-row adjustable-distance celery harvester includes a multi-depth soil-breaking mechanism, a silkworm-pupa-style pulling mechanism, a multi-point seepage cleaning mechanism, an adjustable-distance conveying mechanism, a chassis movement mechanism, and a collection basket.

[0009] The chassis motion mechanism is located at the bottom of the machine, and an adjustable support is provided on the chassis motion mechanism.

[0010] The adjustable support has a main support that is movably connected to the chassis. The main support is divided into two parts: a left main support and a right main support. The two parts have the same structure. The left main support and the right main support are driven to move closer to or further away from each other. A secondary support one and a secondary support two are respectively set on both sides of the main support. The left main support and the secondary support one are driven to move closer to or further away from each other, and the right main support and the secondary support two are driven to move closer to or further away from each other.

[0011] The device comprises four components: a silkworm-like harvesting mechanism, a multi-point seepage cleaning mechanism, and an adjustable-distance conveying mechanism. These are arranged in two pairs. One pair is connected to the left main support and the first auxiliary support, while the other pair is connected to the right main support and the second auxiliary support. The silkworm-like harvesting mechanism is located below the chassis movement mechanism, while the multi-point seepage cleaning mechanism and the adjustable-distance conveying mechanism are located above the chassis movement mechanism. The adjustable-distance mechanism is driven by the adjustable-distance support for adjustment. The relative movement of the left and right main supports adjusts the row spacing of the harvested celery. The relative movement of the left main support and the first auxiliary support, as well as the relative movement of the right main support and the second auxiliary support, adjusts the size of the harvested celery stalks.

[0012] The advantages of this invention compared to existing technologies are: First, it features an adjustable support system. The main support consists of two identical parts: a left main support and a right main support. Secondary support one and a secondary support two are located on either side of the main support. The left main support and secondary support one are driven to move closer or further apart, as are the right main support and secondary support two. This allows other mechanisms mounted on it to move closer or further apart, adjusting the spacing and row spacing. This design allows for simultaneous harvesting of two rows of celery and celery of different diameters, demonstrating strong adaptability.

[0013] Secondly, by setting up a multi-point infiltration cleaning mechanism to clean the celery after it emerges from the ground during the harvesting process, the cost of subsequent separate cleaning is reduced, and the damage to the celery caused by separate cleaning is minimized.

[0014] Third, the harvesting process is equipped with a multi-depth soil-breaking mechanism to break the soil, so there is no need to cut the celery roots during harvesting, which makes it easier to preserve and sell.

[0015] As a further improvement to this technical solution: The multi-depth soil breaking mechanism includes a multi-functional soil breaking disc, a power and transmission component for driving the multi-functional soil breaking disc to rotate, and an adjustment component for adjusting the soil breaking depth of the multi-functional soil breaking disc.

[0016] The power and transmission components include a gearbox, a drive chain, universal coupling one, universal coupling two, an adjusting hinge support, a sleeve, a transmission rod one, a helical bevel gear one, a helical bevel gear two, a bearing one, and a bearing two. The gearbox is connected to the underside of the chassis. Universal coupling one and universal coupling two are connected by a connecting rod. The gearbox is connected to transmission rod one through universal coupling one and universal coupling two, transmitting power to transmission rod one. The transmission rod is fitted inside the sleeve. A transmission housing is provided at the connection point between transmission rod one and the multi-functional earth-breaking disc. Helical bevel gears are installed inside the transmission housing. Gear 1 and helical bevel gear 2 are connected to the transmission housing and sleeve. Helical bevel gear 1 is installed at the end of transmission rod 1, and helical bevel gear 2 is installed on the base of the multi-functional soil-breaking disc. Helical bevel gear 1 and helical bevel gear 2 mesh with each other and are externally connected to the sleeve. Transmission rod 1 drives the multi-functional soil-breaking disc to rotate through helical bevel gear 1 and helical bevel gear 2. The shaft of helical bevel gear 2 is connected to the transmission housing through bearing 1 and bearing 2. The sleeve is hinged to the bottom end of the adjusting hinge support. The top end of the adjusting hinge support is connected to the bottom of the chassis.

[0017] The adjustment assembly includes an electric push rod, which is fixed to the side of the adjustment hinge support below the base plate. The end of the electric push rod is connected to a hinged connecting bracket, which is hinged to the collar on the outside of the sleeve. The extension and retraction of the electric push rod drives the transmission rod to move through the hinged connecting bracket, causing the transmission rod to rotate around its hinge point with the adjustment hinge support, thereby adjusting the vertical position of the multi-functional soil-breaking disc.

[0018] The base plate has harvesting troughs to allow the celery to pass through, meeting the needs of double-row harvesting. The harvesting troughs can also accommodate the movement of the rotating shaft with the adjustable support. The base plate adopts a layout of one wheel in the front and two wheels in the back, which prevents the side celery from being crushed when harvesting two rows of celery. The motor-driven movement allows for precise control, making harvesting more accurate, efficient, and of higher quality.

[0019] The electric push rod moves the multi-functional breaking disc up and down to adjust the breaking depth. In addition, the speed of the multi-functional breaking disc can be adjusted by the gearbox to achieve the best breaking effect.

[0020] The described silkworm-like pulling mechanism includes a silkworm-like pulling head, a fixed bracket, a rotating shaft, a stepper motor, and helical gears one, two, three, and four. The silkworm-like pulling head is fixed to the bushing of the rotating shaft by the fixed bracket. Helical gear three is located at the bottom end of the rotating shaft, and helical gear four is located at one end of the silkworm-like pulling head. Helical gears three and four mesh to transmit power to the silkworm-like pulling head. The stepper motor drives the rotating shaft through the meshing helical gears one and two. The stepper motor is connected to an adjustable bracket. An air bladder is provided on the surface of the silkworm-like pulling head. The air bladder adjusts the pressure to slightly change the clamping interval between the two silkworm-like pulling heads, facilitating the flexible pulling of celery stalks of different diameters.

[0021] During operation, one of the paired, cocoon-like pulling heads rotates counterclockwise while the other rotates clockwise, gripping the celery stalks. This gentle pulling significantly reduces celery damage. It effectively avoids the problem of damaging celery stalks when using a conveyor belt to pull celery out of the ground, improving harvest quality and reducing damage rates.

[0022] The multi-point penetration cleaning mechanism includes brush bristles, penetration holes, water inlet holes, helical gears, bracket one, bracket two, water tank, and transmission rod two. The brush bristles are mounted on the brush roller, which has a cavity structure with penetration holes. One end of the brush roller has a water inlet hole, which is connected to one end of a water inlet pipe via a sealed bearing. The other end of the water inlet pipe is connected to the water tank. This ensures continuous water supply when the brush roller rotates. The brush roller is driven to rotate by a motor.

[0023] The perforated bristles are distributed at the base of each bristle, allowing water to seep out through them and clean the emerging celery, improving its cleanliness. The rotating bristles clean the emerging celery, allowing water to seep out through the perforated bristles, greatly improving water utilization efficiency, reducing the added load on the machine due to water carrying capacity, and significantly increasing cleaning efficiency, thus reducing the cost of secondary processing after the celery is emerged.

[0024] The first and second brackets are connected to the adjustable bracket. The head of the second transmission rod is connected to a helical gear, which meshes with the first helical gear on the stepper motor. The stepper motor drives the brush roller to work, so that the brush rotates to clean the celery after it has been unearthed.

[0025] With the above settings, both the brush roller and the cocoon-shaped extraction head are driven by stepper motors, which reduces the number of motors and also improves work coordination and makes control more convenient.

[0026] The adjustable-distance conveying mechanism includes a conveyor belt and a screw module; the conveyor belts are arranged in pairs to clamp and convey celery; the conveyor belts are connected to the adjustable-distance support through the screw module.

[0027] The height of the conveyor belt is adjusted by driving the screw module to accommodate celery of different heights. The screw module is bolted to the top of the adjustable support and moves left and right with the adjustable support to harvest celery of different sizes and planting spacing.

[0028] The adjustable distance bracket includes movable pulleys, sliding grooves, telescopic rods, fixing holes, telescopic shells, and movable pulleys connected to the bottom of the auxiliary bracket one, main bracket, and auxiliary bracket two of the adjustable distance bracket. Telescopic rods are welded to the top of auxiliary bracket one and auxiliary bracket two, and telescopic shells are provided at corresponding positions on the main bracket. The telescopic rods are inserted into the telescopic shells. Multiple fixing holes are opened on the top of the telescopic rods and telescopic shells, and the two are fixed by bolts to achieve the fixing effect after the distance is adjusted.

[0029] The main support is provided with a telescopic rod between the left and right main supports. The stepper motor drives the telescopic rod to extend or retract through the rotating rod, thereby adjusting the interval between the left and right main supports.

[0030] The support rod is set at one vertex of the telescopic frame, and the opposite vertex is hinged to the base plate. The bottom end of the support rod is connected to the telescopic frame, and the upper part of the telescopic frame is threaded to the rotating rod. The rotating rod rotates to push the support rod to extend or retract, thereby changing the shape of the quadrilateral of the telescopic frame to change the interval between the two connected left and right main supports.

[0031] The chassis motion mechanism includes a base plate, a harvesting trough, bolt holes, casters, a first traveling wheel, a second traveling wheel, a motor, and a movable slot. The motor connects to and drives the first and second traveling wheels, and is fixed below the base plate to drive the movement of the chassis motion mechanism. The casters are bolted to the bottom of the chassis. The base plate has a harvesting trough to allow the celery to be harvested to pass through, meeting the requirements of double-row operation. The base plate has a movable slot to accommodate the movement of the rotating shaft with the adjustable support.

[0032] The collection basket is fixed at the rear of the chassis movement mechanism to collect the unearthed celery.

[0033] Compared with the prior art, the advantages of the present invention are as follows: First: When the multi-depth soil breaking mechanism is working, the multi-functional soil breaking disc can be adjusted by adjusting the hinge support to achieve soil breaking effect at different depths, and the rotating soil breaking wheel can also reduce the power requirements of the machine, enabling soil breaking work for different soil properties, with stronger adaptability and better soil breaking effect. Second: The silkworm pupa-type pulling mechanism is installed on an adjustable-distance bracket, and the distance is adjusted accordingly. The silkworm pupa-type pulling heads on both sides rotate together from the inside out. One side of the silkworm pupa-type pulling head rotates counterclockwise and the other side rotates clockwise. Both sides of the silkworm pupa-type pulling head are covered with adjustable-pressure airbags, which enables flexible pulling of celery with different stem diameters, greatly reducing damage to the celery stems, thus facilitating the preservation and transportation of celery. Third: The adjustable-gap support system includes a main support, which is movably connected to the chassis. The main support consists of two identical parts: a left main support and a right main support. The left and right main supports are driven to move closer or further apart. Secondary supports, number one and number two, are located on either side of the main support. The left main support and secondary support one are driven to move closer or further apart, as are the right main support and secondary support two. The movement of the left and right main supports adjusts the row spacing of the harvested celery. The relative movement of the left main support and secondary support one, and the relative movement of the right main support and secondary support two, adjusts the size of the harvested celery stalks. Through these features, the machine can easily harvest celery with different row spacings and different growth diameters (the width of the sown celery stalks within the same row). Fourth: The multi-point seepage cleaning mechanism uses a combination of seepage holes and brush bristles to clean the celery roots and stems. Water seeps out from the seepage holes along the brush bristles, which greatly improves water utilization and cleaning effect, and reduces the load on the machine caused by water. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of each mechanism in this invention; Figure 2 This is a schematic diagram of the multi-depth soil breaking mechanism of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the multi-depth soil breaking mechanism of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the multi-depth soil breaking mechanism of the present invention. Figure 3 ; Figure 5 This is a schematic diagram of the multi-depth soil breaking mechanism of the present invention. Figure 4 ; Figure 6 This is a schematic diagram of the silkworm pupa-type extraction mechanism of the present invention; Figure 7 This is a schematic diagram of the multi-point penetration cleaning mechanism of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the multi-point penetration cleaning mechanism of the present invention. Figure 2 ; Figure 9 This is a schematic diagram of the adjustable-distance conveying mechanism of the present invention; Figure 10 This is a schematic diagram of the adjustable bracket of the present invention. Figure 1 ; Figure 11 This is a schematic diagram of the adjustable bracket of the present invention. Figure 2 ; Figure 12 This is a schematic diagram of the adjustable bracket of the present invention. Figure 3 ; Figure 13 This is a schematic diagram of the adjustable bracket of the present invention. Figure 4 ; Figure 14 This is a schematic diagram of the chassis motion mechanism of the present invention. Figure 1 ; Figure 15 This is a schematic diagram of the chassis motion mechanism of the present invention. Figure 2 ; Figure 16 This is a schematic diagram of the chassis motion mechanism of the present invention. Figure 3 ;; Figure 17 This is a schematic diagram of the structure of the adjusting component for adjusting the soil breaking depth according to the present invention.

[0035] In the attached diagram, the component numbers are as follows: 1-Multi-depth soil breaking mechanism, 2-Silkworm-like extraction mechanism, 3-Multi-point seepage cleaning mechanism, 4-Adjustable distance conveying mechanism, 5-Adjustable distance bracket, 6-Chassis motion mechanism, 7-Collection basket, 101-Gearbox, 102-Drive chain, 103-Universal coupling I, 104-Universal coupling II, 105-Adjustable hinge support, 106-Sleeve, 107-Drive rod I, 108-Multi-functional soil breaking disc, 109-Helical bevel gear I, 110-Helical bevel gear II, 111-Bearing I, 112-Bearing II, 113-Electric push rod, 114-Hinged connection bracket, 115-Loop, 201-Silkworm-like extraction head, 202-Fixed bracket, 203-Rotating shaft, 204-Stepper motor, 205-Helical gear I, 206-Helical gear II, 20 7-Helical Gear III, 208-Helical Gear IV, 301-Brush bristles, 302-Penetration hole, 303-Water inlet hole, 304-Helical gear, 305-Fixed support I, 306-Fixed support II, 307-Water tank, 308-Transmission rod II, 401-Transmission track, 402-Screw module, 501-Secondary support I, 502-Main support, 503-Secondary support II, 504-Moving pulley, 506-Slide groove, 507-Telescopic rod, 508-Fixed hole, 509-Telescopic shell, 510-Telescopic rod frame, 511-Support rod, 512-Stepper motor, 513-Rotating rod, 601-Base plate, 602-Harvesting trough, 603-Bolt hole, 604-Universal wheel, 605-Walking wheel I, 606-Walking wheel II, 607-Motor, 608-Moving groove. Detailed Implementation

[0036] The technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0037] See Figure 1 It is understood that the double-row adjustable-distance celery harvester of the present invention consists of a multi-depth soil breaking mechanism 1, a silkworm pupa-type pulling mechanism 2, a multi-point seepage cleaning mechanism 3, an adjustable-distance conveying mechanism 4, a chassis movement mechanism 6, and a collection basket 7.

[0038] The chassis motion mechanism 6 is located at the bottom of the machine, and an adjustable support 5 is provided on the chassis motion mechanism 6.

[0039] The adjustable support 5 is provided with a main support 502, which is movably connected to the chassis. The main support 502 is divided into two parts: a left main support and a right main support. The two parts have the same structure. The left main support and the right main support are driven to move closer to or further away from each other. A secondary support 1 501 and a secondary support 2 503 are respectively provided on both sides of the main support 502. The left main support and the secondary support 1 501 are driven to move closer to or further away from each other, and the right main support and the secondary support 2 503 are driven to move closer to or further away from each other.

[0040] The system comprises four components: a silkworm-like harvesting mechanism 2, a multi-point seepage cleaning mechanism 3, and an adjustable-distance conveying mechanism 4, arranged in two pairs. One pair is connected to the left main support and the first auxiliary support 501, while the other pair is connected to the right main support and the second auxiliary support 503. The silkworm-like harvesting mechanism 2 is located below the chassis movement mechanism 6, while the multi-point seepage cleaning mechanism 3 and the adjustable-distance conveying mechanism 4 are located above the chassis movement mechanism 6. The silkworm-like harvesting mechanism 2, the multi-point seepage cleaning mechanism 3, and the adjustable-distance conveying mechanism 4 are adjusted by the adjustable-distance support 5. The relative movement of the left and right main supports adjusts the row spacing of the harvested celery, while the relative movement of the left main support and the first auxiliary support 501, and the relative movement of the right main support and the second auxiliary support 503, adjusts the size of the harvested celery stalks.

[0041] Compared with the prior art, the advantages of the present invention are: First, an adjustable support frame 5 is provided, whose main support 502 is divided into a left main support and a right main support, both of which have the same structure. Secondary support frame 1 501 and secondary support frame 2 503 are respectively set on both sides of the main support 502. The left main support and secondary support frame 1 501 are driven to move closer or further apart, and the right main support and secondary support frame 2 503 are driven to move closer or further apart. This allows other mechanisms mounted on it to move closer or further apart, adjusting the spacing and row spacing. This allows for simultaneous harvesting of two rows of celery and harvesting of celery of different diameters, demonstrating strong adaptability.

[0042] Secondly, by setting up a multi-point infiltration cleaning mechanism 3 to clean the celery after it emerges from the ground during the harvesting process, the cost of subsequent separate cleaning is reduced, and the damage to the celery caused by separate cleaning is decreased.

[0043] Third, the harvesting process is equipped with a multi-depth soil-breaking mechanism 1 to break the soil, so there is no need to cut the roots of the celery during harvesting, which makes it easier to preserve and sell.

[0044] As a further improvement to this technical solution: The multi-depth soil breaking mechanism 1 includes a multi-functional soil breaking disc 108, a power and transmission component for driving the multi-functional soil breaking disc 108 to rotate, and an adjustment component for driving the multi-functional soil breaking disc 108 to adjust the soil breaking depth.

[0045] The power and transmission components include a gearbox 101, a drive chain 102, a universal coupling 103, a universal coupling 104, an adjusting hinge support 105, a sleeve 106, a transmission rod 107, a helical bevel gear 109, a helical bevel gear 110, a bearing 111, and a bearing 112. The gearbox 101 is connected to the underside of the chassis. The universal coupling 103 and the universal coupling 104 are connected by a connecting rod. The gearbox 101 is connected to the transmission rod 107 via the universal coupling 103, transmitting power to the transmission rod 107. The transmission rod 107 is fitted inside the sleeve 106. A transmission housing is provided at the connection between 107 and the multi-functional soil-breaking disc 108. The transmission housing contains a first helical bevel gear 109 and a second helical bevel gear 110. The transmission housing is connected to the sleeve 106. The first helical bevel gear 109 is installed at the end of the first transmission rod 107, and the second helical bevel gear 110 is installed on the disc base of the multi-functional soil-breaking disc 108. The first helical bevel gear 109 and the second helical bevel gear 110 mesh. The first helical bevel gear 109 and the second helical bevel gear 110 are externally connected to the sleeve 106. The first transmission rod 107 drives the multi-functional soil-breaking disc 108 to rotate through the first helical bevel gear 109 and the second helical bevel gear 110. The shaft of the second helical bevel gear 110 is connected to the transmission housing through bearings 111 and 112. The sleeve 106 is hinged to the bottom end of the adjusting hinge support 105. The top end of the adjusting hinge support 105 is connected to the bottom of the chassis.

[0046] The adjustment assembly includes an electric push rod 113, which is fixed to the side of the adjustment hinge support 105 below the base plate. The end of the electric push rod 113 is connected to a hinged connecting bracket 114, which is hinged to the collar 115 on the outside of the sleeve 106. The extension and retraction of the electric push rod 113 drives the transmission rod 107 to move through the hinged connecting bracket 114, causing the transmission rod 107 to rotate around its hinge point with the adjustment hinge support 105, thereby adjusting the up and down position of the multi-functional soil breaking plate 108.

[0047] The base plate 601 has a harvesting trough 602 to allow the celery to be harvested to pass through, meeting the requirements of double-row operation. The harvesting trough 602 can also accommodate the movement of the rotating shaft with the adjustable support. The base plate 601 adopts a layout of one wheel in the front and two wheels in the back, so that it will not crush the celery on the side when harvesting two rows of celery. Moreover, it uses a motor for movement, which facilitates precise control, making the harvest more accurate, efficient and of higher quality.

[0048] The electric push rod 113 moves the multi-functional soil-breaking disc 108 up and down to adjust the soil-breaking depth. In addition, the speed of the multi-functional soil-breaking disc can be adjusted by the gearbox to achieve the best soil-breaking effect.

[0049] The silkworm pupa-type extraction mechanism 2 includes a silkworm pupa-type extraction head 201, a fixed bracket 202, a rotating shaft 203, a stepper motor 204, a helical gear one 205, a helical gear two 206, a helical gear three 207, and a helical gear four 208. The silkworm pupa-type extraction head 201 is fixed to the bushing of the rotating shaft 203 via the fixed bracket 202. The bottom end of the rotating shaft 203 is provided with the helical gear three 207, and one end of the silkworm pupa-type extraction head 201 is provided with the helical gear four 208. 07 meshes with helical gear 4 208 to transmit power to the cocoon-type extraction head 201; stepper motor 204 drives rotating shaft 203 through meshing helical gear 1 205 and helical gear 206. Stepper motor 204 is connected to adjustable bracket 5. The surface of cocoon-type extraction head 201 is provided with airbag. The airbag adjusts the pressure to slightly change the clamping interval between the two cocoon-type extraction heads 201, which facilitates the flexible extraction of celery with different stalk diameters.

[0050] During operation, one of the paired cocoon-shaped pulling heads 201 rotates counterclockwise while the other rotates clockwise, clamping the celery stalks. This gentle pulling significantly reduces celery damage. It effectively avoids the problem of damaging celery stalks when using a conveyor belt to pull celery out of the ground, improving harvest quality and reducing damage rates.

[0051] The multi-point seepage cleaning mechanism 3 includes brush bristles 301, seepage holes 302, water inlet holes 303, helical gears 304, bracket one 305, bracket two 306, water tank 307, and transmission rod two 308. The brush bristles 301 are mounted on the brush roller, which has a cavity structure with seepage holes 302. One end of the brush roller has a water inlet hole 303, which is connected to one end of a water inlet pipe through a sealed bearing. The other end of the water inlet pipe is connected to the water tank 307, thus enabling continuous water supply when the brush roller rotates. The brush roller is driven to rotate by a motor.

[0052] Point seepage holes 302 are distributed at the base of each brush bristle 301, allowing water to seep out from the point seepage holes 302 along the brush bristles 301 to clean the exposed celery and improve its cleanliness. The rotating brush bristles 301 clean the exposed celery; the water seeps out from the point seepage holes along the brush bristles, greatly improving water utilization efficiency, reducing the increased load on the machine due to water carrying, and significantly improving cleaning efficiency, thus reducing the cost of secondary processing of the celery after it is exposed.

[0053] Support 1 305 and support 2 306 are connected to the adjustable support 5. The head of transmission rod 2 308 is connected to helical gear 304. Helical gear 304 meshes with helical gear 1 205 on stepper motor 204. Stepper motor 204 drives brush roller to work so that the brush rotates to clean the celery after it is unearthed.

[0054] With the above settings, both the brush roller and the cocoon-shaped extraction head are driven by stepper motor 204, which reduces the number of motors and also makes the work coordination better and the control more convenient.

[0055] The adjustable-distance conveying mechanism 4 includes a conveyor belt 401 and a screw module 402; the conveyor belts 401 are arranged in pairs to clamp and convey celery; the conveyor belts 401 are connected to the adjustable-distance bracket 5 through the screw module 402.

[0056] The height of the conveyor belt 401 is adjusted by driving the screw module 402 to accommodate the conveying of celery of different heights; the screw module 402 is bolted to the top of the adjustable support 5 and moves left and right with the adjustable support 5 to achieve the harvesting of celery of different sizes and planting spacings.

[0057] The adjustable distance bracket 5 includes a movable pulley 504, a sliding groove 506, a telescopic rod 507, a fixing hole 508, and a telescopic shell 509. The bottom of the auxiliary bracket 501, the main bracket 502, and the second auxiliary bracket 503 are all connected to the movable pulley 504. The top of the auxiliary bracket 501 and the second auxiliary bracket 503 are welded with telescopic rods 507. The main bracket 502 is provided with a telescopic shell 509 at the corresponding position. The telescopic rod 507 is inserted into the telescopic shell 509. Multiple fixing holes 508 are opened on the top of the telescopic rod 507 and the telescopic shell 509. The two are fixed with bolts to achieve the fixing effect after the distance is adjusted.

[0058] A telescopic rod 510 is provided between the left and right main supports of the main support 502. The stepper motor 512 drives the telescopic rod 510 to extend or retract through the rotating rod 513, thereby adjusting the interval between the left and right main supports.

[0059] The support rod 511 is set at one vertex of the telescopic rod frame 510, and the opposite vertex is hinged to the base plate 601. The bottom end of the support rod 511 is connected to the telescopic rod frame 510, and the upper part of the telescopic rod frame 510 is threadedly connected to the rotating rod 513. The rotating rod 513 rotates to push the support rod 511 to extend forward or retract backward, thereby changing the quadrilateral shape of the telescopic rod frame 510 to change the interval between the two connected left main support and right main support parts.

[0060] The chassis motion mechanism 6 includes a base plate 601, a harvesting trough 602, bolt holes 603, casters 604, first traveling wheel 605, second traveling wheel 606, a motor 607, and a movable slot 608. The motor 607 connects and drives the first traveling wheel 605 and the second traveling wheel 606. The motor 607 is fixed below the base plate 601 to drive the movement of the chassis motion mechanism 6. The casters 604 are bolted to the bottom of the chassis. The base plate 601 has a harvesting trough 602 to allow the celery to be harvested to pass through the harvesting trough 602, meeting the requirements of double-row operation. The base plate 601 has a movable slot 608 to accommodate the movement of the rotating shaft 203 with the adjustable support 5.

[0061] The collection basket 7 is fixed at the rear of the chassis movement mechanism 6 to collect the unearthed celery.

[0062] The working process of this invention is as follows: 1. First, start the stepper motor 512. Adjust the spacing between the secondary support 1 501 and secondary support 2 503 relative to the main support 502 according to the size, height and planting spacing of the celery to be harvested. The silkworm-like pulling mechanism 2, the multi-point seepage cleaning mechanism 3 and the adjustable distance conveying mechanism 4 installed on the adjustable distance support will be adjusted to the appropriate harvesting position.

[0063] 2. Start the stepper motor 204, and the left cocoon-type extraction head, the right cocoon-type extraction head, and the brush 301 will start to rotate. Water in the water tank 307 enters through the water inlet 303, and then the motor 607 is started. The multi-functional soil breaking disc 108 starts to rotate. The soil penetration depth of the multi-functional soil breaking disc 108 is adjusted by adjusting the hinge support 105, and the machine begins to move forward.

[0064] 3. The multi-functional soil-breaking disc 108 breaks up the soil around the celery roots. The left and right cocoon-shaped pulling heads 201 gently pull out the loosened celery. The conveyor belt 401 then holds the celery stems and transports them backward. During the transport, the celery roots and stems are cleaned by rotating brushes 301. Finally, the cleaned celery falls into the collection basket 7 at the rear of the machine for further transport and sale.

[0065] Compared with the prior art, the advantages of the present invention are as follows: First: When the multi-depth soil breaking mechanism 1 is working, the adjustable hinge support 105 can adjust the multi-functional soil breaking disc 108 to achieve soil breaking effects at different depths. In addition, the rotating soil breaking wheel can also reduce the power requirements of the machine, enabling soil breaking work for different soil properties, making it more adaptable and achieving better soil breaking effect. Second: The silkworm pupa-type pulling mechanism 2 is installed on the adjustable distance bracket 5 and the distance is adjusted accordingly. The silkworm pupa-type pulling heads 201 on both sides rotate together from the inside out. One side of the silkworm pupa-type pulling head 201 rotates counterclockwise and the other side rotates clockwise. Both sides of the silkworm pupa-type pulling head are covered with adjustable pressure airbags to achieve flexible pulling of celery with different stem diameters, greatly reducing damage to the celery stems, thus facilitating the preservation and transportation of celery. Third: The adjustable-gap support 5 includes a main support 502, which is movably connected to the chassis. The main support 502 consists of two identical parts: a left main support and a right main support. The left and right main supports are driven to move closer or further apart. Secondary supports 1 and 2 are respectively located on either side of the main support. The left main support and secondary support 1 501 are driven to move closer or further apart, as are the right main support and secondary support 2 503. The movement of the left and right main supports adjusts the row spacing of the harvested celery. The relative movement of the left main support and secondary support 1 501, and the relative movement of the right main support and secondary support 2 503, adjusts the size of the harvested celery stalks. Through these features, the machine can easily harvest celery with different row spacings and different growth diameters (the width of the planted celery stalks within the same row). Fourth: The multi-point seepage cleaning mechanism 3 uses a combination of seepage holes and brush bristles 301 to clean the celery root and stem parts. Water seeps out from the seepage holes along the brush bristles 301, which greatly improves the water utilization rate and the cleaning effect, and reduces the load on the machine caused by water.

[0066] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to these specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A double-row adjustable-distance celery harvester, comprising a multi-depth soil-breaking mechanism (1), a silkworm-pupa-type pulling mechanism (2), a multi-point seepage cleaning mechanism (3), an adjustable-distance conveying mechanism (4), a chassis movement mechanism (6), and a collection basket (7); characterized in that: The chassis motion mechanism (6) is located at the bottom of the machine, and an adjustable support (5) is provided on the chassis motion mechanism (6). The adjustable support (5) is provided with a main support (502), which is movably connected to the chassis. The main support (502) is divided into two parts: a left main support and a right main support. The two parts have the same structure. The left main support and the right main support are driven to move closer to each other or further away from each other. A secondary support one (501) and a secondary support two (503) are respectively provided on both sides of the main support (502). The left main support and the secondary support one (501) are driven to move closer to each other or further away from each other, and the right main support and the secondary support two (503) are driven to move closer to each other or further away from each other. The cocoon-type harvesting mechanism (2), the multi-point seepage cleaning mechanism (3), and the adjustable distance conveying mechanism (4) consist of four parts, divided into two pairs. One pair is connected to the left main support and the first auxiliary support (501), and the other pair is connected to the right main support and the second auxiliary support (503). The cocoon-type harvesting mechanism (2) is located below the chassis movement mechanism (6), and the multi-point seepage cleaning mechanism (3) and the adjustable distance conveying mechanism (4) are located above the chassis movement mechanism (6). The cocoon-type harvesting mechanism (2), the multi-point seepage cleaning mechanism (3), and the adjustable distance conveying mechanism (4) are driven by the adjustable distance support (5) to adjust the distance. The relative movement of the left main support and the right main support adjusts the row spacing of the harvested celery. The relative movement of the left main support and the first auxiliary support (501) and the relative movement of the right main support and the second auxiliary support (503) adjust the size of the harvested celery stalks. The cocoon-type extraction mechanism (2) includes a cocoon-type extraction head (201), a fixed bracket (202), a rotating shaft (203), a stepper motor (204), a helical gear one (205), a helical gear two (206), a helical gear three (207), and a helical gear four (208). The cocoon-type extraction head (201) is fixed to the bushing of the rotating shaft (203) through the fixed bracket (202). The bottom end of the rotating shaft (203) is provided with helical gear three (207), and one end of the cocoon-type extraction head (201) is provided with helical gear four (208). Helical gear three (207) and helical gear four (208) mesh to transmit power to the cocoon-type extraction head (201); stepper motor (204) drives the rotating shaft (203) through the meshing helical gear one (205) and helical gear two (206). Stepper motor (204) is connected to adjustable bracket (5). The surface of the cocoon-type extraction head (201) is provided with an air bladder. The air bladder adjusts the pressure slightly to change the clamping interval between the two cocoon-type extraction heads (201), which facilitates the flexible extraction of celery with different stalk diameters.

2. The double-row adjustable-distance celery harvester according to claim 1, characterized in that: The multi-depth soil breaking mechanism (1) includes a multi-functional soil breaking disc (108), a power and transmission component for driving the multi-functional soil breaking disc (108) to rotate, and an adjustment component for driving the multi-functional soil breaking disc (108) to adjust the soil breaking depth.

3. The double-row adjustable-distance celery harvester according to claim 2, characterized in that: The power and transmission components include a gearbox (101), a transmission chain (102), a universal coupling one (103), a universal coupling two (104), an adjusting hinge support (105), a sleeve (106), a transmission rod one (107), a helical bevel gear one (109), a helical bevel gear two (110), a bearing one (111), and a bearing two (112). The gearbox (101) is connected to the underside of the chassis. The universal coupling one (103) and the universal coupling two (104) are connected by a connecting rod. The gearbox (101) is connected to the transmission rod one (107) through the universal coupling one (103) and the universal coupling two (104) to transmit power to the transmission rod one (107). The transmission rod one (107) is fitted inside the sleeve (106) to transmit power. A transmission housing is provided at the connection between the moving rod (107) and the multi-functional soil-breaking disc (108). Helical bevel gear one (109) and helical bevel gear two (110) are installed inside the transmission housing. The transmission housing is connected to the sleeve (106). Helical bevel gear one (109) is installed at the end of the transmission rod (107), and helical bevel gear two (110) is installed on the disc base of the multi-functional soil-breaking disc (108). Helical bevel gear one (109) and helical bevel gear two (110) mesh. Helical bevel gear one (109) and helical bevel gear two (110) are externally connected to the sleeve (106). The transmission rod one (107) drives the multi-functional soil-breaking disc (108) to rotate through helical bevel gear one (109) and helical bevel gear two (110). The shaft is connected to the transmission housing via bearing one (111) and bearing two (112); the sleeve (106) is hinged to the bottom end of the adjusting hinge support (105); the top end of the adjusting hinge support (105) is connected to the bottom of the chassis.

4. The double-row adjustable-distance celery harvester according to claim 2, characterized in that: The adjustment assembly includes an electric push rod (113), which is fixed to the side of the adjustment hinge support (105) below the base plate. The end of the electric push rod (113) is connected to a hinged connecting bracket (114). The hinged connecting bracket (114) is hinged to the collar (115) on the outside of the sleeve (106). The extension and retraction of the electric push rod (113) drives the transmission rod (107) to move through the hinged connecting bracket (114), so that the transmission rod (107) rotates around the hinge point with the adjustment hinge support (105), thereby adjusting the up and down position of the multi-functional soil breaking plate (108).

5. The double-row adjustable-distance celery harvester according to claim 1, characterized in that: The multi-point seepage cleaning mechanism (3) includes brush bristles (301), seepage holes (302), water inlet holes (303), helical gears (304), bracket one (305), bracket two (306), water tank (307), and transmission rod two (308); the brush bristles (301) are set on the brush roller, the brush roller has a cavity structure, the cavity structure is provided with seepage holes (302), one end of the brush roller is provided with a water inlet hole (303), the water inlet hole (303) is connected to one end of the water inlet pipe through a sealed bearing, and the other end of the water inlet pipe is connected to the water tank (307); to realize continuous water supply when the brush roller rotates; the brush roller is driven to rotate by a motor.

6. The double-row adjustable-distance celery harvester according to claim 5, characterized in that: The first bracket (305) and the second bracket (306) are connected to the adjustable bracket (5). The head of the second transmission rod (308) is connected to a helical gear (304). The helical gear (304) meshes with the first helical gear (205) on the stepper motor (204). The stepper motor (204) drives the brush roller to work so that the brush rotates to clean the celery after it is unearthed.

7. The double-row adjustable-distance celery harvester according to claim 1, characterized in that: The adjustable-distance conveying mechanism (4) includes a conveyor belt (401) and a screw module (402); the conveyor belts (401) are arranged in pairs to clamp and convey celery; the conveyor belts (401) are connected to the adjustable-distance bracket (5) through the screw module (402).

8. The double-row adjustable-distance celery harvester according to claim 1, characterized in that: The adjustable distance bracket (5) includes a movable pulley (504), a sliding groove (506), a telescopic rod (507), a fixing hole (508), and a telescopic shell (509). The bottom of the auxiliary bracket one (501), the main bracket (502), and the auxiliary bracket two (503) of the adjustable distance bracket (5) are all connected to the movable pulley (504). The top of the auxiliary bracket one (501) and the auxiliary bracket two (503) are welded with telescopic rods (507). The main bracket (502) is provided with a telescopic shell (509) at the corresponding position. The telescopic rod (507) is inserted into the telescopic shell (509). Multiple fixing holes (508) are opened on the top of the telescopic rod (507) and the telescopic shell (509). The two are fixed by bolts to achieve the fixing effect after the distance is adjusted.

9. The double-row adjustable-distance celery harvester according to claim 1, characterized in that: The chassis motion mechanism (6) includes a base plate (601), a harvesting trough (602), bolt holes (603), casters (604), first traveling wheel (605), second traveling wheel (606), a motor (607), and a movable slot (608); the motor (607) connects and drives the first traveling wheel (605) and the second traveling wheel (606), and the motor (607) is fixed below the base plate (601) to drive the movement of the chassis motion mechanism (6); the casters (604) are bolted to the bottom of the chassis; the base plate (601) has a harvesting trough (602) so that the celery to be harvested can pass through the harvesting trough (602) to meet the requirements of double-row operation; The base plate (601) has a movable groove (608) to accommodate the movement of the rotating shaft (203) with the adjustable support (5).

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