Double-row distance-adjustable celery harvester

Abstract

The invention discloses a double-row distance-adjustable celery harvester which comprises a multi-depth ground breaking mechanism, a silkworm chrysalis type pulling mechanism, a multi-point seepage type cleaning mechanism, a distance-adjustable conveying mechanism, a chassis movement mechanism and a collecting basket. A distance-adjustable bracket is arranged on the chassis movement mechanism; a main bracket of the distance-adjustable bracket is divided into a left main bracket and a right main bracket which are driven to be close to or far away from each other; a first auxiliary support and a second auxiliary support are arranged on the two sides of the main supports, the left main support and the first auxiliary support are driven to be close to or away from each other, and the right main support and the second auxiliary support are driven to be close to or away from each other. The silkworm chrysalis type pulling mechanism is located below the chassis movement mechanism, and the multi-point seepage type cleaning mechanism and the distance-adjustable conveying mechanism are located above the chassis movement mechanism. The silkworm chrysalis type pulling mechanism, the multi-point seepage type cleaning mechanism and the distance-adjustable conveying mechanism are driven by a distance-adjustable support to adjust the distance. According to the celery picking machine, low-damage-rate picking is achieved, the unearthed celery is cleaned in the picking process, and the post-treatment cost is reduced.

Description

Technical Field

[0001] The invention relates to a celery harvester, in particular to a double-row adjustable-distance celery harvester. Background Art

[0002] In 2023, the market size of my country's vegetable industry is about 4733.827 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 23029.78 thousand hectares, and the output was about 810265800 tons. Based on the rapid rise of my country's economy and the improvement of people's quality of life, people are no longer satisfied with the state of being full, but pursue a healthier diet and lifestyle, so that people's consumption of vegetables has increased year by year. Among them, celery is often eaten by people because of its high nutritional value, and it is known as "good vegetables and good medicine". However, in recent years, people's demand for celery has increased, resulting in more and more people planting celery. However, different varieties of celery have differences in plant height, stem thickness, root system, etc., and it is difficult for harvesters to achieve good harvesting effects for multiple varieties of celery. And because some harvesters have tensioning devices installed on the conveying structure, the surface tissue of the celery is damaged, affecting the freshness of the celery. Therefore, it is of great value to study a harvester that integrates flexible picking, cleaning and boxing collection.

[0003] The Chinese invention patent with the patent number CN107455076A discloses a row-aligned celery harvester, which includes a frame, a power device, a transmission device, a traveling device, a root cutting device, a clamping conveying device, a collecting device and a handrail; the power device is connected to the traveling device and the clamping conveying device through the transmission device and provides power for them; the clamping conveying device includes two conveying racks fixed side by side in front of the frame and driving wheels respectively arranged behind the two conveying racks; a guide wheel is installed at the front end of each conveying rack, and a conveyor belt is wound around the guide wheel and the driving wheel on the same conveying rack, and a row of tensioning devices that can rotate along the installation point under the action of force are installed on each conveying rack; the guide wheel, the conveyor belt and the tensioning device surround a conveying channel with a gradually decreasing width from front to back. The invention has a low damage rate to celery, and the harvested celery can be automatically placed neatly.

[0004] The problems are:

[0005] First, there is no mechanism for adjusting the spacing, so only celery with a limited planting width can be harvested, and the adaptability is low.

[0006] Second, the celery is not cleaned after being unearthed, which increases the cost of secondary processing, and secondary processing will obviously cause more damage to the celery.

[0007] Thirdly, no soil-breaking work is carried out during the harvesting process, and the celery roots need to be cut before harvesting, which is not conducive to preservation and sales. Summary of the Invention

[0008] The technical problem solved by the present invention is to provide a two-row adjustable-spacing celery harvester, which can not only achieve low-damage picking, but also clean the celery after it is unearthed during the picking process to reduce the subsequent processing cost.

[0009] A two-row adjustable-spacing celery harvester includes a multi-depth soil-breaking mechanism, a pupa-type pulling mechanism, a multi-point infiltration cleaning mechanism, an adjustable-spacing conveying mechanism, a chassis movement mechanism, and a collection basket.

[0010] The chassis movement mechanism is located at the bottom of the machine, and an adjustable-spacing bracket is provided on the chassis movement mechanism.

[0011] The adjustable-spacing bracket is provided with a main bracket. The main bracket is movably connected to the chassis. The main bracket is divided into two parts: a left main bracket and a right main bracket. The two parts have the same structure. The left main bracket and the right main bracket are driven to approach or move away from each other; on both sides of the main bracket, a first sub-bracket and a second sub-bracket are respectively arranged. The left main bracket and the first sub-bracket are driven to approach or move away from each other, and the right main bracket and the second sub-bracket are driven to approach or move away from each other.

[0012] There are a total of 4 pupa-type pulling mechanisms, multi-point infiltration cleaning mechanisms, and adjustable-spacing conveying mechanisms, which are divided into 2 pairs. One pair is connected and arranged on the left main bracket and the first sub-bracket, and the other pair is connected and arranged on the right main bracket and the second sub-bracket; among them, the pupa-type pulling mechanism is located below the chassis movement mechanism, and the multi-point infiltration cleaning mechanism and the adjustable-spacing conveying mechanism are located above the chassis movement mechanism; the pupa-type pulling mechanism, the multi-point infiltration cleaning mechanism, and the adjustable-spacing conveying mechanism are driven by the adjustable-spacing bracket to adjust the distance. The mutual approach or separation of the left main bracket and the right main bracket adjusts the row spacing of the harvested celery, and the relative movement between the left main bracket and the first sub-bracket and the relative movement between the right main bracket and the second sub-bracket adjust the stem size of the harvested celery.

[0013] The advantages of the present invention compared with the prior art are as follows:

[0014] First, an adjustable-spacing bracket is provided. Its main bracket is divided into two parts: a left main bracket and a right main bracket. The two parts have the same structure. A first sub-bracket and a second sub-bracket are respectively arranged on both sides of the main bracket. The left main bracket and the first sub-bracket are driven to approach or move away from each other, and the right main bracket and the second sub-bracket are driven to approach or move away from each other; thus, other mechanisms arranged on it can be driven to approach or move away from each other, adjusting the spacing and row spacing. It is better to harvest two rows of celery at the same time and harvest celery with different diameters, and the adaptability is stronger.

[0015] Second, by setting up a multi-point infiltration cleaning mechanism to clean the celery after it is unearthed during the harvesting process, the cost of subsequent separate cleaning is reduced, and the damage to the celery caused by separate cleaning is reduced.

[0016] Third, during the harvesting process, a multi-depth soil-breaking mechanism is provided for soil-breaking work, and there is no need to cut the roots of the celery during harvesting, which is convenient for storage and sales.

[0017] As a further improvement of this technical solution:

[0018] 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 driving the multi-functional soil-breaking disc to adjust the soil-breaking depth.

[0019] The power and transmission component includes a gearbox, a transmission chain, a universal coupling one, a universal coupling two, an adjustment hinge support, a sleeve, a transmission rod, a helical bevel gear one, a helical bevel gear two, a bearing one, and a bearing two; the gearbox is connected below the chassis, the universal coupling one and the universal coupling two are connected by a connecting rod, the gearbox is connected to the transmission rod through the universal coupling one and the universal coupling one to transmit power to the transmission rod; the transmission rod is sleeved inside the sleeve, and a transmission housing is provided at the connection between the transmission rod and the multi-functional soil-breaking disc. A helical bevel gear one and a helical bevel gear two are arranged inside the transmission housing. The transmission housing is connected to the sleeve. The helical bevel gear one is installed at the end of the transmission rod, and the helical bevel gear two is installed on the disc seat of the multi-functional soil-breaking disc. The helical bevel gear one and the helical bevel gear two are meshed, and the helical bevel gear one and the helical bevel gear two are externally connected to the sleeve. The transmission rod drives the multi-functional soil-breaking disc to rotate through the helical bevel gear one and the helical bevel gear two. The shaft of the helical bevel gear two is connected to the transmission housing through the bearing one and the bearing two; the sleeve is hingedly connected to the bottom end of the adjustment hinge support; the top end of the adjustment hinge support is connected below the chassis.

[0020] The adjustment component includes an electric push rod. The electric push rod is fixed beside the adjustment hinge support under the bottom plate. The end of the electric push rod is connected to a hinged connection bracket. The hinged connection bracket is hingedly connected to the collar on the outside of the sleeve. The telescopic movement of the electric push rod drives the transmission rod to move through the hinged connection bracket, so that the transmission rod rotates around its hinge point with the adjustment hinge support, thereby adjusting the up and down position of the multi-functional soil-breaking disc.

[0021] A harvesting groove is opened on the bottom plate so that the celery to be harvested passes through this groove to meet the requirement of double-row operation; the harvesting groove can also adapt to the movement of the rotating shaft along with the adjustable-distance bracket. The bottom plate adopts a layout of one wheel in the front and two wheels in the back, so that it will not crush the side celery when harvesting two rows of celery, and it uses a motor for movement, which is convenient for fine control, making the harvesting more accurate, with higher efficiency and quality.

[0022] The electric push rod moves the multi-functional soil-breaking disc up and down to adjust the soil-breaking depth. Additionally, the rotation speed of the multi-functional soil-breaking disc can be adjusted through a gearbox to achieve the best soil-breaking effect.

[0023] The described pupa-shaped extraction mechanism includes a pupa-shaped extraction head, a fixed bracket, a rotating shaft, a stepping motor, a first helical gear, a second helical gear, a third helical gear, and a fourth helical gear. The pupa-shaped extraction head is fixed to the bushing of the rotating shaft through a fixed bracket. A third helical gear is provided at the bottom end of the rotating shaft, and a fourth helical gear is provided at one end of the pupa-shaped extraction head. The third helical gear and the fourth helical gear are meshed to transmit power to the pupa-shaped extraction head. The stepping motor drives the rotating shaft through the mutually meshed first helical gear and second helical gear. The stepping motor is connected to an adjustable-distance bracket. An airbag is provided on the surface layer of the pupa-shaped extraction head. The airbag slightly changes the clamping interval between two pupa-shaped extraction heads through pressure regulation, facilitating the flexible extraction of celery with different stem diameters.

[0024] During operation, one of the pair of pupa-shaped extraction heads rotates counterclockwise, and the other rotates clockwise to clamp the celery. The flexible extraction greatly reduces the damage rate of celery. It effectively avoids the problem of easily damaging the celery stems during the operation of using a conveyor belt to extract celery from the soil, improves the harvesting quality, and reduces the damage rate.

[0025] The described multi-point infiltration cleaning mechanism includes bristles, infiltration holes, water inlet holes, helical gears, a first bracket, a second bracket, a water tank, and a transmission rod. The bristles are arranged on a brush roller. The brush roller has a cavity structure. Infiltration holes are provided in the cavity structure. A water inlet hole is provided at one end of the brush roller. The water inlet hole is connected to one end of a water inlet pipe through a sealed bearing, and the other end of the water inlet pipe is connected to the water tank to continuously supply water when the brush roller rotates. The brush roller is driven to rotate by a motor.

[0026] The infiltration holes are distributed at the root of each bristle, so that water seeps out along the bristles from the infiltration holes to clean the celery unearthed, improving the cleanliness of the celery. The bristles rotate to clean the celery after it is unearthed, making the water seep out along the bristles from the infiltration holes, greatly improving the utilization efficiency of the water source, reducing the load on the machine due to carrying water, and greatly enhancing the cleaning efficiency, reducing the cost of secondary treatment of the celery after it is unearthed.

[0027] The first bracket and the second bracket are connected to an adjustable-distance bracket. A helical gear is connected to the head of the transmission rod. The helical gear meshes with the first helical gear on the stepping motor to drive the brush roller to work with the stepping motor, so that the brush rotates to clean the celery after it is unearthed.

[0028] Through the above settings, both the brush roller and the pupa-shaped extraction head are driven by the stepping motor. While reducing the number of motors, it also makes the work more coordinated and easier to control.

[0029] The adjustable-spacing conveying mechanism described above includes a conveyor track and a lead screw module; the conveyor tracks are arranged in pairs to clamp and convey celery; the conveyor tracks are connected to an adjustable-spacing bracket through the lead screw module.

[0030] By driving the lead screw module, the height of the conveyor track for clamping and conveying is adjusted to adapt to the conveying of celery at different heights; the lead screw module is connected to the top of the adjustable-spacing bracket through bolts and moves left and right with the adjustable-spacing bracket to achieve the harvesting of celery with different sizes and different planting spacings.

[0031] The adjustable-spacing bracket described above includes moving pulleys, sliding grooves, telescopic rods, fixing holes, telescopic shells. Moving pulleys are connected to the bottoms of the first sub-bracket, the main bracket, and the second sub-bracket of the adjustable-spacing bracket; telescopic rods are welded to the tops of the first sub-bracket and the second sub-bracket, and telescopic shells are provided at corresponding positions on the main bracket. The telescopic rods are inserted into the internal parts of the telescopic shells, and multiple fixing holes are opened above the telescopic rods and the telescopic shells, and bolts are used to fix the two to achieve the fixing effect after the spacing is adjusted.

[0032] An expansion rod frame is provided between the left main bracket and the right main bracket of the main bracket. The stepping motor drives the expansion rod frame to extend or contract through a rotating rod, thereby adjusting the interval between the left main bracket and the right main bracket.

[0033] A support rod is provided at a vertex on the expansion rod frame, and the other vertex opposite to it is hinged to the bottom plate. The bottom end of the support rod is connected to the expansion rod frame, and the upper part of the expansion rod frame is threadedly connected to the rotating rod. The rotation of the rotating rod pushes the support rod to extend or retract, thereby changing the shape of the quadrilateral of the expansion rod frame to change the interval between the left main bracket and the right main bracket connected to it.

[0034] The chassis movement mechanism described above includes a bottom plate, a harvesting groove, bolt holes, universal wheels, a first walking wheel, a second walking wheel, a motor, and a movable groove; the motor is connected to drive the first walking wheel and the second walking wheel, and the motor is fixed below the bottom plate to drive the movement of the chassis movement mechanism; the universal wheels are connected to the bottom of the chassis through bolts; a harvesting groove is opened on the bottom plate to enable the celery to be harvested to pass through this groove to meet the requirements of double-row operation; a movable groove is opened on the bottom plate to adapt to the movement of the rotating shaft with the adjustable-spacing bracket.

[0035] The collection basket is fixed at the rearmost part of the chassis movement mechanism to achieve the collection of the unearthed celery.

[0036] Compared with the prior art, the advantages of the present invention are as follows:

[0037] First: When the multi-depth soil-breaking mechanism is working, the adjusting hinge support can control the multi-functional soil-breaking disc to achieve soil-breaking effects at different depths, and the rotating soil-breaking wheel can also reduce the power requirement of the machine, realizing soil-breaking work for different soil properties, with stronger adaptability and better soil-breaking effects;

[0038] Second: The pupa - type extraction mechanism is installed on the adjustable - distance bracket. After adjusting the distance, the pupa - type extraction heads on both sides rotate jointly from the inside to the outside. One pupa - type extraction head rotates counter - clockwise, and the other rotates clockwise. Moreover, the pupa - type extraction heads on both sides are wrapped with adjustable - pressure air bags, realizing the flexible extraction of celery with different stem diameters, greatly reducing the damage to the celery stems, and thus facilitating the preservation and transportation of celery.

[0039] Third: The adjustable - distance bracket is provided with a main bracket. The main bracket is movably connected to the chassis. The main bracket is divided into two parts: the left main bracket and the right main bracket. The two parts have the same structure. The left main bracket and the right main bracket are driven to move closer to or away from each other; on both sides of the main bracket, a first sub - bracket and a second sub - bracket are respectively arranged. The left main bracket and the first sub - bracket are driven to move closer to or away from each other, and the right main bracket and the second sub - bracket are driven to move closer to or away from each other. The mutual approach or separation of the left main bracket and the right main bracket adjusts the row spacing of the harvested celery, and the relative movement between the left main bracket and the first sub - bracket and the relative movement between the right main bracket and the second sub - bracket adjust the stem size of the harvested celery. Through the above settings, this machine can conveniently harvest celery with different row spacings and different growth diameters (the width of sowing and growth of celery in the same row).

[0040] Fourth: The multi - point infiltration cleaning mechanism uses the combination of infiltration holes and bristles to clean the root and stem parts of celery. Water seeps out from the infiltration holes along the bristles, greatly improving the water utilization rate, significantly enhancing the cleaning effect, and reducing the load on the machine caused by carrying water. Description of the Drawings

[0041] Figure 1 is the structural schematic diagram of each mechanism of the present invention;

[0042] Figure 2 is the schematic diagram of the multi - depth soil - breaking mechanism of the present invention Figure 1 ;

[0043] Figure 3 is the schematic diagram of the multi - depth soil - breaking mechanism of the present invention Figure 2 ;

[0044] Figure 4 is the schematic diagram of the multi - depth soil - breaking mechanism of the present invention Figure 3 ;

[0045] Figure 5 is the schematic diagram of the multi - depth soil - breaking mechanism of the present invention Figure 4 ;

[0046] Figure 6 is the schematic diagram of the pupa - type extraction mechanism of the present invention;

[0047] Figure 7Schematic diagram of the multi-point infiltration cleaning mechanism of the present invention Figure 1 ;

[0048] Figure 8 Schematic diagram of the multi-point infiltration cleaning mechanism of the present invention Figure 2 ;

[0049] Figure 9 Schematic diagram of the adjustable-distance conveying mechanism of the present invention;

[0050] Figure 10 Schematic diagram of the adjustable-distance bracket of the present invention Figure 1 ;

[0051] Figure 11 Schematic diagram of the adjustable-distance bracket of the present invention Figure 2 ;

[0052] Figure 12 Schematic diagram of the adjustable-distance bracket of the present invention Figure 3 ;

[0053] Figure 13 Schematic diagram of the adjustable-distance bracket of the present invention Figure 4 ;

[0054] Figure 14 Schematic diagram of the chassis movement mechanism of the present invention Figure 1 ;

[0055] Figure 15 Schematic diagram of the chassis movement mechanism of the present invention Figure 2 ;

[0056] Figure 16 Schematic diagram of the chassis movement mechanism of the present invention Figure 3 ;;

[0057] Figure 17 Schematic diagram of the structure of the adjusting component for adjusting the depth of soil breaking of the present invention.

[0058] In the attached drawings, the reference numerals of each component are as follows:

[0059] 1 - Multi - depth soil - breaking mechanism, 2 - Silkworm - pupa - type pulling mechanism, 3 - Multi - point infiltration cleaning mechanism, 4 - Adjustable - pitch conveying mechanism, 5 - Adjustable - pitch support, 6 - Chassis movement mechanism, 7 - Collection basket, 101 - Gearbox, 102 - Transmission chain, 103 - Universal coupling one, 104 - Universal coupling two, 105 - Adjusting hinge support, 106 - Sleeve, 107 - Transmission rod, 108 - Multi - functional soil - breaking disc, 109 - Helical bevel gear one, 110 - Helical bevel gear two, 111 - Bearing one, 112 - Bearing two, 113 - Electric push rod, 114 - Hinged connection support, 115 - Collar, 201 - Silkworm - pupa - type pulling head, 202 - Fixed support, 203 - Rotating shaft, 204 - Stepper motor, 205 - Helical gear one, 206 - Helical gear two, 207 - Helical gear three, 208 - Helical gear four, 301 - Brush bristles, 302 - Infiltration holes, 303 - Water inlet holes, 304 - Helical gear, 305 - Fixed support one, 306 - Fixed support two, 307 - Water tank, 308 - Transmission rod, 401 - Conveyor track, 402 - Lead screw module, 501 - Sub - support one, 502 - Main support, 503 - Sub - support two, 504 - Moving pulley, 506 - Slide groove, 507 - Telescopic rod, 508 - Fixed hole, 509 - Telescopic housing, 510 - Telescopic rod support, 511 - Support rod, 512 - Stepper motor, 513 - Rotating rod, 601 - Bottom plate, 602 - Harvesting groove, 603 - Bolt hole, 604 - Caster wheel, 605 - Walking wheel one, 606 - Walking wheel two, 607 - Motor, 608 - Activity groove. Detailed implementation manners

[0060] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0061] See Figure 1 It can be seen that a double - row adjustable - pitch celery harvester of the present invention is composed of a multi - depth soil - breaking mechanism 1, a silkworm - pupa - type pulling mechanism 2, a multi - point infiltration cleaning mechanism 3, an adjustable - pitch conveying mechanism 4, a chassis movement mechanism 6, and a collection basket 7.

[0062] The chassis movement mechanism 6 is located at the bottom of the machine, and an adjustable - pitch support 5 is provided on the chassis movement mechanism 6.

[0063] The adjustable - pitch support 5 is provided with a main support 502. The main support 502 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 structures of the two parts are the same. The left main support and the right main support are driven to approach or move away from each other; on both sides of the main support 502, a sub - support one 501 and a sub - support two 503 are respectively provided. The left main support and the sub - support one 501 are driven to approach or move away from each other, and the right main support and the sub - support two 503 are driven to approach or move away from each other.

[0064] There are 4 silkworm pupa extraction mechanisms 2, multi-point infiltration cleaning mechanisms 3, and adjustable distance conveying mechanisms 4, which are divided into 2 pairs, one pair of which is connected and arranged on the left main bracket and the auxiliary bracket 1 501, and the other pair is connected and arranged on the right main bracket and the auxiliary bracket 2 503; wherein, the silkworm pupa extraction mechanism 2 is located below the chassis movement mechanism 6, and the multi-point infiltration cleaning mechanism 3 and the adjustable distance conveying mechanism 4 are located above the chassis movement mechanism 6; the silkworm pupa extraction mechanism 2, the multi-point infiltration cleaning mechanism 3, and the adjustable distance conveying mechanism 4 are driven by the adjustable distance bracket 5 to adjust the distance, the left main bracket and the right main bracket are moved closer or farther away from each other to adjust the row spacing of the harvested celery, and the relative movement of the left main bracket and the auxiliary bracket 1 501, and the relative movement of the right main bracket and the auxiliary bracket 2 503 adjusts the size of the stems of the harvested celery.

[0065] Compared with the prior art, the advantages of the present invention are:

[0066] First, an adjustable distance bracket 5 is provided, wherein the main bracket 502 is divided into a left main bracket and a right main bracket, and the two parts have the same structure. A sub-bracket 1 501 and a sub-bracket 2 503 are respectively provided on both sides of the main bracket 502. The left main bracket and the sub-bracket 1 501 are driven to move closer to or away from each other, and the right main bracket and the sub-bracket 2 503 are driven to move closer to or away from each other; thereby, other mechanisms provided thereon can be driven to move closer to or away from each other, and the spacing and row spacing can be adjusted. It is better to harvest double rows of celery at the same time, and to harvest celery with different diameters, and the adaptability is strong.

[0067] Second, by providing a multi-point infiltration cleaning mechanism 3 to clean the celery after it is unearthed during the harvesting process, the cost of subsequent separate cleaning is reduced, and the damage to the celery caused by separate cleaning is reduced.

[0068] Third, during the harvesting process, a multi-depth soil-breaking mechanism 1 is provided to break the soil, and there is no need to cut the roots of the celery during harvesting, which is convenient for storage and sale.

[0069] As a further improvement of this technical solution:

[0070] The multi-depth earth-breaking mechanism 1 comprises a multifunctional earth-breaking disc 108, a power and transmission component for driving the multifunctional earth-breaking disc 108 to rotate, and an adjustment component for driving the multifunctional earth-breaking disc 108 to adjust the earth-breaking depth.

[0071] 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 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 under the chassis, the universal coupling one 103 and the universal coupling two 104 are connected by a connecting rod, and the gearbox 101 is connected to the transmission rod 107 through the universal coupling one 103 and the universal coupling one 103 to transmit power to the transmission rod 107; the transmission rod 107 is sleeved inside the sleeve 106, and a transmission housing is provided at the connection between the transmission rod 107 and the multi-functional soil-breaking disc 108. A helical bevel gear one 109 and a helical bevel gear two 110 are arranged inside the transmission housing. The transmission housing is connected to the sleeve 106. The helical bevel gear one 109 is installed at the end of the transmission rod 107, and the helical bevel gear two 110 is installed on the disc seat of the multi-functional soil-breaking disc 108. The helical bevel gear one 109 and the helical bevel gear two 110 are meshed, and the helical bevel gear one 109 and the helical bevel gear two 110 are externally connected to the sleeve 106. The transmission rod 107 drives the multi-functional soil-breaking disc 108 to rotate through the helical bevel gear one 109 and the helical bevel gear two 110. The shaft of the helical bevel gear two 110 is connected to the transmission housing through the bearing one 111 and the bearing two 112; the sleeve 106 is hingedly connected to the bottom end of the adjusting hinge support 105; the top end of the adjusting hinge support 105 is connected under the chassis.

[0072] The adjusting component includes an electric push rod 113. The electric push rod 113 is fixed beside the adjusting hinge support 105 under the bottom plate. The end of the electric push rod 113 is connected to a hinged connection bracket 114. The hinged connection bracket 114 is hingedly connected to a collar 115 on the outside of the sleeve 106. The telescopic movement of the electric push rod 113 drives the transmission rod 107 to move through the hinged connection bracket 114, so that the transmission rod 107 rotates around its hinge point with the adjusting hinge support 105, thereby adjusting the up and down position of the multi-functional soil-breaking disc 108.

[0073] A harvesting groove is formed on the bottom plate 601 to allow the celery to be harvested to pass through this groove to meet the requirement of double-row operation; the harvesting groove can also adapt to the movement of the rotating shaft along with the adjustable-distance bracket. The bottom plate 601 adopts a layout of one wheel in the front and two wheels in the back, so that it will not crush the side celery when harvesting two rows of celery, and it is driven by a motor, which is convenient for fine control, making the harvesting more accurate, with higher efficiency and quality.

[0074] 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 rotation speed of the multi-functional soil-breaking disc can also be adjusted through the gearbox to achieve the best soil-breaking effect.

[0075] The pupa - type extraction mechanism 2 includes a pupa - type extraction head 201, a fixed bracket 202, a rotating shaft 203, a stepper motor 204, a first helical gear 205, a second helical gear 206, a third helical gear 207, and a fourth helical gear 208. The pupa - type extraction head 201 is fixed to the bushing of the rotating shaft 203 through the fixed bracket 202. At the bottom end of the rotating shaft 203, there is a third helical gear 207. At one end of the pupa - type extraction head 201, there is a fourth helical gear 208. The third helical gear 207 and the fourth helical gear 208 are meshed to transmit power to the pupa - type extraction head 201. The stepper motor 204 drives the rotating shaft 203 through the mutually meshed first helical gear 205 and second helical gear 206. The stepper motor 204 is connected to the adjustable - distance bracket 5. The surface layer of the pupa - type extraction head 201 is provided with an airbag. The airbag finely adjusts the clamping interval between the two pupa - type extraction heads 201 through pressure regulation, facilitating the flexible extraction of celery with different stem diameters.

[0076] During operation, one of the paired pupa - type extraction heads 201 rotates counter - clockwise, and the other rotates clockwise to clamp the celery. The flexible extraction greatly reduces the damage rate of celery, effectively avoiding the problem that the stem of celery is easily damaged when using a conveyor belt for unearthed operation, improving the harvesting quality and reducing the damage rate.

[0077] The multi - point infiltration cleaning mechanism 3 includes brush bristles 301, infiltration holes 302, water inlet holes 303, helical gears 304, a first bracket 305, a second bracket 306, a water tank 307, and a transmission rod 308. The brush bristles 301 are arranged on a brush roller. The brush roller is of a cavity structure. The cavity structure is provided with infiltration holes 302. At one end of the brush roller, there is a water inlet hole 303. The water inlet hole 303 is connected to one end of a water inlet pipe through a sealed bearing, and the other end of the water inlet pipe is connected to the water tank 307 to continuously supply water when the brush roller rotates. The brush roller is driven by a motor to rotate.

[0078] The infiltration holes 302 are distributed at the root of each brush bristle 301, so that water seeps out along the brush bristles 301 from the infiltration holes 302 to clean the unearthed celery, improving the cleanliness of the celery. The brush bristles 301 rotate to clean the unearthed celery, making the water seep out along the brush bristles, greatly improving the utilization efficiency of water source, reducing the load on the machine due to carrying water, and greatly improving the cleaning efficiency, reducing the cost of secondary treatment after the celery is unearthed.

[0079] The first bracket 305 and the second bracket 306 are connected to the adjustable - distance bracket 5. The head of the transmission rod 308 is connected with a helical gear 304. The helical gear 304 meshes with the first helical gear 205 on the stepper motor 204 to drive the brush roller to work with the stepper motor 204, so that the brush rotates to clean the unearthed celery.

[0080] With the above settings, both the brush roller and the pupa - type extraction head are driven by the stepper motor 204. While reducing the number of motors, it also makes the work more coordinated and the control more convenient.

[0081] The adjustable - pitch conveying mechanism 4 includes a conveyor track 401 and a lead - screw module 402; the conveyor tracks 401 are arranged in pairs to clamp and convey celery; the conveyor tracks 401 are connected to the adjustable - pitch support 5 through the lead - screw module 402.

[0082] By driving the lead - screw module 402, the height of the conveyor tracks 401 for clamping and conveying is adjusted to adapt to the conveyance of celery at different heights; the lead - screw module 402 is connected to the top of the adjustable - pitch support 5 by bolts and moves left and right with the adjustable - pitch support 5 to achieve the harvesting of celery with different sizes and different planting spacings.

[0083] The adjustable - pitch support 5 includes moving pulleys 504, sliding grooves 506, telescopic rods 507, fixing holes 508, telescopic shells 509. Moving pulleys 504 are connected to the bottoms of the first sub - support 501, the main support 502 and the second sub - support 503 of the adjustable - pitch support 5; telescopic rods 507 are welded to the tops of the first sub - support 501 and the second sub - support 503, and telescopic shells 509 are provided at corresponding positions on the main support 502. The telescopic rods 507 are inserted into the internal part of the telescopic shells 509. Multiple fixing holes 508 are opened above the telescopic rods 507 and the telescopic shells 509, and the two are fixed with bolts to achieve the fixing effect after the spacing adjustment.

[0084] An expansion - rod frame 510 is provided between the left main support and the right main support of the main support 502. The stepper motor 512 drives the expansion - rod frame 510 to extend or contract through the rotating rod 513, thereby adjusting the interval between the left main support and the right main support. A support rod 511 is arranged at a vertex on the expansion - rod frame 510, and the other vertex opposite to it is hinged to the bottom plate 601. The bottom end of the support rod 511 is connected to the expansion - rod frame 510, and the upper part of the expansion - rod frame 510 is threadedly connected to the rotating rod 513. The rotation of the rotating rod 513 pushes the support rod 511 to extend or retract, thereby changing the shape of the quadrilateral of the expansion - rod frame 510 to change the interval between the left main support and the right main support connected to it.

[0085] The chassis movement mechanism 6 includes a bottom plate 601, a harvesting trough 602, bolt holes 603, universal wheels 604, a first driving wheel 605, a second driving wheel 606, a motor 607, and a movable groove 608; the motor 607 is connected to drive the first driving wheel 605 and the second driving wheel 606, and the motor 607 is fixed below the bottom plate 601 to drive the movement of the chassis movement mechanism 6; the universal wheels 604 are connected to the bottom of the chassis by bolts; a harvesting trough 602 is formed on the bottom plate 601 to allow the celery to be harvested to pass through this trough to meet the requirement of double-row operation; a movable groove 608 is formed on the bottom plate 601 to adapt to the movement of the rotating shaft 203 along with the adjustable-distance bracket 5.

[0086] The collection basket 7 is fixed at the rearmost part of the chassis movement mechanism 6 to achieve the collection of the unearthed celery.

[0087] The working process of the present invention is as follows:

[0088] 1. First, start the stepper motor 512, and adjust the intervals of the first sub-bracket 501 and the second sub-bracket 503 relative to the main bracket 502 according to the size, height, and planting spacing of the celery to be harvested. The pupa-type extraction mechanism 2, the multi-point infiltration cleaning mechanism 3, and the adjustable-distance conveying mechanism 4 installed on the adjustable-distance bracket will all be adjusted to the appropriate positions for harvesting accordingly.

[0089] 2. Start the stepper motor 204, and the left pupa-type extraction head, the right pupa-type extraction head, and the bristles 301 will start to rotate. The water in the water tank 307 enters through the water inlet hole 303, and then start the motor 607. The multi-functional soil-breaking disc 108 starts to rotate, and adjust the soil-infiltration depth of the multi-functional soil-breaking disc 108 by adjusting the hinge support 105, and the machine starts to move forward.

[0090] 3. The multi-functional soil-breaking disc 108 performs soil-breaking work on the soil at the root of the celery. The left pupa-type extraction head and the right pupa-type extraction head 201 gently extract the loosened celery. Then the conveying track 401 clamps the stem of the unearthed celery and transports it backward. During the transportation process, the root and stem of the celery pass through the rotating bristles 301 for cleaning work. Finally, it is transported to the rear of the machine, and the cleaned celery falls into the collection basket 7 for the next step of transportation and sales work.

[0091] Compared with the prior art, the advantages of the present invention are as follows:

[0092] First: When the multi-depth soil-breaking mechanism 1 is working, the hinge support 105 can be adjusted to control the multi-functional soil-breaking disc 108 to achieve soil-breaking effects at different depths. Moreover, the rotating soil-breaking wheel can also reduce the power requirement of the machine, realize soil-breaking work for different soil properties, with stronger adaptability and better soil-breaking effects;

[0093] Second: The silkworm pupa type pulling mechanism 2 is installed on the adjustable distance type bracket 5. Then, the distance is adjusted. The silkworm pupa type pulling heads 201 on both sides rotate jointly from inside to outside. One side of the silkworm pupa type pulling head 201 rotates counterclockwise, and the other side of the silkworm pupa type pulling head 201 rotates clockwise. And the silkworm pupa type pulling heads on both sides are wrapped with adjustable pressure air bags, realizing the flexible pulling of celery with different stem diameters, greatly reducing the damage to the celery stem, so as to facilitate the preservation and transportation of celery.

[0094] Third: The adjustable distance type bracket 5 is provided with a main bracket 502. The main bracket 502 is movably connected to the chassis. The main bracket 502 is divided into two parts: a left main bracket and a right main bracket. The two parts have the same structure. The left main bracket and the right main bracket are driven to approach or move away from each other. On both sides of the main bracket, a first auxiliary bracket and a second auxiliary bracket are respectively arranged. The left main bracket and the first auxiliary bracket 501 are driven to approach or move away from each other. The right main bracket and the second auxiliary bracket 503 are driven to approach or move away from each other. The approach or separation of the left main bracket and the right main bracket adjusts the row spacing of the harvested celery. The relative movement between the left main bracket and the first auxiliary bracket 501 and the relative movement between the right main bracket and the second auxiliary bracket 503 adjust the stem size of the harvested celery. Through the above settings, the machine can conveniently harvest celery with different row spacings and different growth diameters (the width of sowing and growing for the celery in the same row).

[0095] Fourth: The multi-point infiltration type cleaning mechanism 3 uses the combination of infiltration holes and bristles 301 to clean the root and stem parts of celery. Water seeps out from the infiltration holes along the bristles 301, greatly improving the water utilization rate, also greatly enhancing the cleaning effect, and reducing the load on the machine caused by carrying water.

[0096] The preferred embodiments of the present invention disclosed above are only used to help illustrate the technology of the present invention. The preferred embodiments do not elaborate all the details, nor limit the invention technology to only this specific implementation manner. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art in the technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A double - row adjustable - spacing celery harvester, comprising a multi - depth soil - breaking mechanism (1), a pupa - type pulling mechanism (2), a multi - point infiltration cleaning mechanism (3), an adjustable - spacing conveying mechanism (4), a chassis movement mechanism (6), and a collection basket (7); characterized in that: The chassis movement mechanism (6) is located at the bottom of the machine, and an adjustable - spacing support (5) is provided on the chassis movement mechanism (6); the adjustable - spacing support (5) is provided with a main support (502), and the main support (502) is movably connected to the chassis. The main support (502) is divided into a left main support and a right main support, and the two parts have the same structure. The left main support and the right main support are driven to approach or move away from each other; on both sides of the main support (502), a first sub - support (501) and a second sub - support (503) are respectively arranged. The left main support and the first sub - support (501) are driven to approach or move away from each other, and the right main support and the second sub - support (503) are driven to approach or move away from each other; there are a total of 4 of the pupa - type pulling mechanism (2), the multi - point infiltration cleaning mechanism (3), and the adjustable - spacing conveying mechanism (4), which are divided into 2 pairs. One pair is connected and arranged on the left main support and the first sub - support (501), and the other pair is connected and arranged on the right main support and the second sub - support (503); among them, the pupa - type pulling mechanism (2) is located below the chassis movement mechanism (6), and the multi - point infiltration cleaning mechanism (3) and the adjustable - spacing conveying mechanism (4) are located above the chassis movement mechanism (6); the pupa - type pulling mechanism (2), the multi - point infiltration cleaning mechanism (3), and the adjustable - spacing conveying mechanism (4) are driven by the adjustable - spacing support (5) to adjust the spacing. The approach or separation of the left main support and the right main support adjusts the row spacing of the harvested celery, and the relative movement between the left main support and the first sub - support (501) and the relative movement between the right main support and the second sub - support (503) adjust the stem size of the harvested celery.

2. The double-row adjustable-spacing celery harvester according to claim 1, wherein: The multi - depth soil - breaking mechanism (1) includes a multi - functional soil - breaking disk (108), a power and transmission assembly for driving the multi - functional soil - breaking disk (108) to rotate and work, and an adjustment assembly for driving the multi - functional soil - breaking disk (108) to adjust the soil - breaking depth.

3. The double-row adjustable-spacing celery harvester according to claim 2, wherein: The described 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 (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 under 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 (107) through the universal coupling one (103) and the universal coupling two (104) to transmit power to the transmission rod (107); the transmission rod (107) is sleeved inside the sleeve (106), a transmission housing is provided at the connection of the transmission rod (107) and the multi-functional soil-breaking disc (108), a helical bevel gear one (109) and a helical bevel gear two (110) are arranged inside the transmission housing, the transmission housing is connected to the sleeve (106), the helical bevel gear one (109) is installed at the end of the transmission rod (107), the helical bevel gear two (110) is installed on the disc seat of the multi-functional soil-breaking disc (108), the helical bevel gear one (109) and the helical bevel gear two (110) are meshed, the helical bevel gear one (109) and the helical bevel gear two (110) are externally connected to the sleeve (106), the transmission rod (107) drives the multi-functional soil-breaking disc (108) to rotate through the helical bevel gear one (109) and the helical bevel gear two (110), and the shaft of the helical bevel gear two (110) is connected to the transmission housing through the bearing one (111) and the bearing two (112); the sleeve (106) is hingedly connected to the bottom end of the adjusting hinge support (105); the top end of the adjusting hinge support (105) is connected under the chassis.

4. The double-row adjustable-spacing celery harvester according to claim 2, wherein: The described adjusting component includes an electric push rod (113), the electric push rod (113) is fixed beside the adjusting hinge support (105) under the bottom plate, the end of the electric push rod (113) is connected to a hinged connection bracket (114), the hinged connection bracket (114) is hingedly connected to a collar (115) on the outer side of the sleeve (106), the telescoping of the electric push rod (113) drives the transmission rod (107) to move through the hinged connection bracket (114), so that the transmission rod (107) rotates around its hinge point with the adjusting hinge support (105), thereby adjusting the up and down position of the multi-functional soil-breaking disc (108).

5. The double-row adjustable-spacing celery harvester according to claim 1, wherein: The described pupa - type extraction mechanism (2) includes a pupa - type extraction head (201), a fixed bracket (202), a rotating shaft (203), a stepping motor (204), a first helical gear (205), a second helical gear (206), a third helical gear (207), and a fourth helical gear (208); the pupa - type extraction head (201) is fixed to the bushing of the rotating shaft (203) through the fixed bracket (202). A third helical gear (207) is provided at the bottom end of the rotating shaft (203), and a fourth helical gear (208) is provided at one end of the pupa - type extraction head (201). The third helical gear (207) and the fourth helical gear (208) are meshed to transmit power to the pupa - type extraction head (201); the stepping motor (204) drives the rotating shaft (203) through the mutually meshed first helical gear (205) and second helical gear (206). The stepping motor (204) is connected to the adjustable - distance bracket (5). An airbag is provided on the surface of the pupa - type extraction head (201). The airbag finely adjusts the clamping interval between the two pupa - type extraction heads (201) through pressure regulation, facilitating the flexible extraction of celery with different stem diameters.

6. The double-row adjustable-spacing celery harvester according to claim 1, wherein: The described multi - point infiltration cleaning mechanism (3) includes bristles (301), infiltration holes (302), water inlet holes (303), helical gears (304), a first bracket (305), a second bracket (306), a water tank (307), and a transmission rod (308); the bristles (301) are arranged on a brush roller. The brush roller is of a cavity structure, and infiltration holes (302) are provided in the cavity structure. A water inlet hole (303) is provided at one end of the brush roller. The water inlet hole (303) is connected to one end of a water inlet pipe through a sealed bearing, and the other end of the water inlet pipe is connected to the water tank (307); continuous water supply is achieved when the brush roller rotates. The brush roller is driven to rotate by a motor.

7. The double-row adjustable-spacing celery harvester according to claim 6, wherein: The first bracket (305) and the second bracket (306) are connected to the adjustable - distance bracket (5). The head of the transmission rod (308) is connected with a helical gear (304), and the helical gear (304) is meshed with the first helical gear (205) on the stepping motor (204). The stepping motor (204) is used to drive the brush roller to work, so that the bristles rotate to clean the celery after it is unearthed.

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

9. The double-row adjustable-spacing celery harvester according to claim 1, wherein: The adjustable-distance bracket (5) described above includes a moving pulley (504), a sliding groove (506), a telescopic rod (507), a fixing hole (508), and a telescopic housing (509); moving pulleys (504) are connected to the bottoms of the first sub-bracket (501), the main bracket (502), and the second sub-bracket (503) of the adjustable-distance bracket (5); telescopic rods (507) are welded to the tops of the first sub-bracket (501) and the second sub-bracket (503), and telescopic housings (509) are provided at corresponding positions on the main bracket (502). The telescopic rods (507) are inserted into the interiors of the telescopic housings (509), and a plurality of fixing holes (508) are opened above the telescopic rods (507) and the telescopic housings (509). Bolts are used to fix the two to achieve the fixing effect after the distance adjustment.

10. The double-row adjustable-spacing celery harvester according to claim 1, wherein: The chassis movement mechanism (6) described above includes a bottom plate (601), a harvesting trough (602), bolt holes (603), universal wheels (604), a first walking wheel (605), a second walking wheel (606), a motor (607), and a movable groove (608); the motor (607) is connected to drive the first walking wheel (605) and the second walking wheel (606), and the motor (607) is fixed below the bottom plate (601) to drive the movement of the chassis movement mechanism (6); the universal wheels (604) are connected to the bottom of the chassis by bolts; a harvesting trough (602) is opened on the bottom plate (601) so that the celery to be harvested passes through this trough to meet the requirement of double-row operation; A movable groove (608) is opened on the bottom plate (601) to accommodate the movement of the rotating shaft (203) along with the adjustable-distance bracket (5).

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