Dual ridge four row carrot harvester

Abstract

The present application belongs to the technical field of agricultural machinery, and particularly relates to a double-ridge four-row carrot harvester, which comprises a frame, a power device arranged in the frame, a walking device arranged below the frame, and oblique clamping and conveying devices arranged on both sides of the frame. Each of the oblique clamping and conveying devices comprises a conveying support, two clamping and conveying monomer groups arranged on the conveying support, a clamping driving wheel, a clamping driven wheel, a clamping conveying belt, and a plurality of tensioning wheel assemblies. The front ends of the two oblique clamping and conveying devices are provided with feeding devices, the upper sides of the two feeding devices are provided with supporting devices, the lower parts of the two supporting devices are fixedly connected with folding assemblies away from the frame, and the lower parts of the two feeding devices are provided with digging devices. The present application has a reasonable structure and can solve the problems of poor folding effect, easy lodging, and difficulty in guiding and feeding two rows of carrots into the oblique clamping and conveying device for conveying during harvesting.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery technology, and in particular relates to a double-ridge four-row carrot harvester. Background Technology

[0002] Carrots are one of the major economic crops and are widely distributed around the world. my country has a large carrot harvesting area. With the development of productivity, carrot harvesting machines that replace manual harvesting have gradually appeared on the market.

[0003] Chinese patent application CN201410777978.9 discloses a self-propelled double-row carrot combine harvester, including a tracked chassis, a hydraulic system, and a frame. The frame includes a front frame and a rear frame. The front frame is installed at the front end of the power output shaft on one side of the tracked chassis, and the rear frame is fixed to the tracked chassis. The front frame is equipped with a depth-limiting wheel, a digging device, a seedling lifting and guiding device, an inclined clamping and conveying device, a soil-removing device, and a seedling cutting device. The rear frame is equipped with a horizontal belt conveyor and a lifting and collecting device. The seedling lifting and guiding device consists of a rotating seedling lifting roller, a hydraulic motor, and a guide rod. The rotating seedling lifting roller lifts the carrot seedlings, while the digging shovel loosens the soil under the carrots. The seedlings are fed between two clamping rubber belts under the guidance of the guide rod. However, the mature carrot tops (i.e., carrot seedlings) are relatively long and irregularly shaped. The carrot tops are difficult to harvest when the rotating seedling lifting roller lifts the carrot seedlings. During the process of lifting the carrots with rollers and feeding them between the two clamping rubber belts under the guidance of guide rods, it is difficult to ensure that the carrot tops do not fall over, especially when harvesting plots where two rows of carrots are planted on one ridge. The problem is even more pronounced when the carrots are harvested together, making it difficult to guide and feed both rows of carrots into the two clamping rubber belts for transport. The lifting and collecting device is located on the right side of the horizontal clamping conveyor and includes a grid conveyor belt, a rear baffle, a conveyor chain device, side baffles, a support frame, and a hydraulic motor. The hydraulic motor drives the grid conveyor belt to operate. The grid conveyor belt first transports the carrots horizontally and then obliquely upwards, lifting them to a certain height before throwing them into the collecting bags of the fixed support frame and auxiliary frame. However, this lifting and collecting device has a simple structure and a short size. It can only throw the carrots into the collecting bags installed on this equipment and cannot transport the carrots to the auxiliary harvesting transfer vehicle, which limits the harvest quantity and harvesting efficiency.

[0004] The invention patent application with application number CN201811591794.8 discloses an integrated device for plant clamping, conveying, and root cutting and separating for a carrot harvester. The device includes a plant clamping and conveying assembly and a root cutting and separating assembly. The plant clamping and conveying assembly is mounted on the machine body and comprises two individual plant clamping and conveying units, each corresponding to the clamping, pulling, and conveying of one row of carrot plants. A double-row supporting and feeding device is fixedly mounted on the driven wheel connector of the plant clamping and conveying unit assembly. This device separates, lifts, and guides the two rows of seedlings into the conveyor belts. Simultaneously, a digging shovel loosens the carrots under the constraint of a double-wheel depth limiting device. The carrot plants are then clamped and pulled by the plant clamping and conveying assembly and conveyed upwards and backwards. However, due to structural limitations, this double-row supporting and feeding device cannot guide and feed two rows of carrots together into the two conveyor belts; it can only feed them separately.

[0005] In addition, the invention patent application with application number CN202010498132.7 discloses a high-efficiency radish harvester, and the invention patent application with application number CN202110084893.2 discloses a modern agricultural high-efficiency carrot harvester. Their seedling feeding device has a simple structure, but it also has the problem of poor carrot top gathering effect, easy lodging, and difficulty in guiding carrots into the clamping and conveying device for high-quality transportation. Summary of the Invention

[0006] The main technical problem to be solved by the present invention is to provide a double-ridge four-row carrot harvester that can replace manual harvesting of carrots and solve the problems of poor carrot top gathering effect, easy lodging, and difficulty in guiding two rows of carrots together into the inclined clamping conveyor for transportation during harvesting.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] A double-ridge, four-row carrot harvester includes a frame, a power unit inside the frame, a traveling device below the frame, and inclined clamping conveyors on both sides of the frame. Each inclined clamping conveyor includes a conveying support frame with two clamping conveyor unit assemblies. Each clamping conveyor unit assembly includes a clamping drive wheel, a clamping driven wheel, a clamping conveyor belt, and multiple tensioning wheel assemblies. A support adjustment device is provided between the two inclined clamping conveyors. A feeding device is provided at the front end of each of the two inclined clamping conveyors, and a tassel-supporting device is provided above and to the side of each of the two feeding devices. A gathering assembly is fixed to the lower part of each of the two tassel-supporting devices on the side away from the frame. A digging device is provided below the two feeding devices, and a tassel-cutting device is provided at the rear end of each of the two inclined clamping conveyors. A fruit-collecting conveyor is provided below the two tassel-cutting devices.

[0009] The following are further optimizations of the above technical solution by the present invention:

[0010] The feeding device includes a first support plate and a second support plate, both of which are fixedly connected to corresponding conveying brackets. A first connecting column is fixedly connected to the first support plate, and a first sprocket is rotatably connected to the first connecting column. A clamping driven wheel installed on the clamping conveying unit corresponding to the first support plate is rotatably sleeved on the first connecting column, and the first sprocket is fixedly connected to its corresponding clamping driven wheel. A first support column is fixedly connected to the first support plate, and a second sprocket is rotatably connected to the first support column. A first toothed chain is meshed between the first sprocket and the second sprocket. A third connecting column is fixedly connected to the second support plate, and a third sprocket is rotatably connected to the third connecting column. A clamping driven wheel installed on the clamping conveying unit corresponding to the second support plate is rotatably sleeved on the third connecting column, and the third sprocket is fixedly connected to its corresponding clamping driven wheel. A second support column is fixedly connected to the second support plate, and a fourth sprocket is rotatably connected to the second support column. A second toothed chain is meshed between the third sprocket and the fourth sprocket, and a trapezoidal feeding inlet is formed between the second toothed chain and the first toothed chain.

[0011] Further optimization: A first guide wheel is rotatably connected to the first support column, and a second guide wheel and a third guide wheel are rotatably connected to the first support plate. The first guide wheel, the second guide wheel, the third guide wheel, and the clamping driven wheel on the first support plate guide the corresponding clamping conveyor belts near the feeding device. A fourth guide wheel is rotatably connected to the second support column. The fourth guide wheel and the clamping driven wheel on the second support plate guide the corresponding clamping conveyor belts near the feeding device. The shape of the front end of the two clamping conveyor belts matches the shape of the feeding inlet, and a feeding channel is formed near the feeding inlet.

[0012] Further optimization: A second connecting post is rotatably connected to the first support plate, and a first intermediate sprocket is fixedly connected to the second connecting post. The first intermediate sprocket meshes with a first toothed chain. The second connecting post extends above the first support plate and is fixedly connected to a first support roller. A second support roller and a third support roller are rotatably connected to the first support plate. The first, second, and third support rollers are arranged in a triangle. A first guide and limiting belt is drivenly connected to the first, second, and third support rollers. A fourth connecting post is rotatably connected to the second support plate, and a first intermediate sprocket is fixedly connected to the fourth connecting post. Two intermediate sprockets are engaged with a second toothed chain. A fourth connecting post extends above the second support plate and is fixedly connected to a fourth support roller. A fifth and a sixth support roller are rotatably connected to the second support plate. The fourth, fifth, and sixth support rollers are arranged in a triangle. A second guide limiting belt is drivenly connected to the fourth, fifth, and sixth support rollers. An auxiliary feeding inlet and an auxiliary feeding channel are provided between the first and second guide limiting belts. The auxiliary feeding inlet and the auxiliary feeding channel are respectively set to correspond to the feeding inlet and the feeding channel.

[0013] Further optimization: The tassel-supporting device includes two symmetrically arranged tassel-supporting components. Each tassel-supporting component includes a tassel-supporting support plate, which is fixedly connected to either a first or second support plate. A driving tassel-supporting sprocket is rotatably connected to the tassel-supporting support plate near its top, and a driven tassel-supporting sprocket is rotatably connected to the tassel-supporting support plate near its bottom. A tassel-supporting chain is meshed between the driving and driven tassel-supporting sprockets. Multiple tassel-supporting claws are spaced along the rotation direction of the tassel-supporting chain. A protective cover is fixedly attached at a certain distance to the side of the tassel-supporting support plate away from the feeding device.

[0014] Further optimization: The retractable assembly includes two guide blocks, which are fixed to the lower part of the corresponding protective cover on the side away from the tassel support plate. Retractable rods are fixed to the sides of the two guide blocks that are close to each other, and the two retractable rods are arranged symmetrically.

[0015] Further optimization: The fruit collecting and conveying device includes a first fruit collecting support unit, a second fruit collecting support unit rotatably connected to one end of the first fruit collecting support unit, and a third fruit collecting support unit rotatably connected to the end of the second fruit collecting support unit away from the first fruit collecting support unit. Skirted conveyor belts are fitted onto the first, second, and third fruit collecting support units. First fruit collecting drive units for driving the second fruit collecting support unit to rotate around one end of the first fruit collecting support unit are installed on both sides of the first fruit collecting support unit. Second fruit collecting drive units for driving the third fruit collecting support unit to rotate around one end of the second fruit collecting support unit are installed on both sides of the second fruit collecting support unit. A fruit collecting support assembly is fixedly connected to the bottom of the first fruit collecting support unit. A third hydraulic motor is fixedly installed on the frame, and the output end of the third hydraulic motor is connected to the fruit collecting support assembly for transmission.

[0016] Further optimization: The first fruit-collecting support unit includes two parallel first fruit-collecting support plates spaced a certain distance apart. A first fruit-collecting connecting plate is fixedly connected to the end of each of the two first fruit-collecting support plates near the second fruit-collecting support unit. A first fruit-collecting guide roller is rotatably connected between the two first fruit-collecting connecting plates. A fruit-collecting driven roller assembly is slidably connected to the end of each of the two first fruit-collecting support plates away from the second fruit-collecting support unit. A fruit-collecting tensioning component is provided on each of the two first fruit-collecting support plates for driving the fruit-collecting driven roller assembly away from the first fruit-collecting support plate. The second fruit-collecting support unit includes two parallel second fruit-collecting support plates spaced a certain distance apart. The two second fruit-collecting support plates are located near the first fruit-collecting support unit. Each fruit-collecting support unit has a second fruit-collecting connecting plate fixedly connected to one end. The second fruit-collecting connecting plate is rotatably connected to the first fruit-collecting guide roller. Each of the two second fruit-collecting support plates has a third fruit-collecting connecting plate fixedly connected to one end near the third fruit-collecting support unit. A second fruit-collecting guide roller is rotatably connected between the two third fruit-collecting connecting plates. The third fruit-collecting support unit includes two third fruit-collecting support plates arranged in parallel at a certain distance. Each of the two third fruit-collecting support plates has a fourth fruit-collecting connecting plate fixedly connected to one end near the second fruit-collecting support unit. The fourth fruit-collecting connecting plate is rotatably connected to the second fruit-collecting guide roller. A fruit-collecting drive unit is provided at one end of each of the two third fruit-collecting support plates away from the second fruit-collecting support unit.

[0017] Further optimization: The first fruit collection drive unit includes a cylinder support base, which is fixedly connected to its corresponding first fruit collection support plate. A third hydraulic cylinder is hinged to the cylinder support base. A first connecting pin is fixedly connected to the second fruit collection connecting plate. The piston rod of the third hydraulic cylinder is hinged to the first connecting pin. The second fruit collection drive unit includes a second connecting pin, which is fixedly connected to its corresponding second fruit collection connecting plate. A fourth hydraulic cylinder is hinged to the second connecting pin. A third connecting pin is fixedly connected to the third fruit collection connecting plate. A first connecting arm is hinged to the third connecting pin. A fourth connecting pin is fixedly connected to the fourth fruit collection connecting plate. A second connecting arm is hinged to the fourth connecting pin. Both the first and second connecting arms have an arc-shaped structure. The ends of the first and second connecting arms that are close to each other are rotatably connected to the fruit collection support shaft. The piston rod of the fourth hydraulic cylinder is hinged to the fruit collection support shaft. A first limiting wheel set is provided on the first fruit collection connecting plate at a position above the first fruit collection support plate. Second limiting wheel sets are provided on the third fruit collection connecting plate at positions on both sides of the second fruit collection support plate.

[0018] Further optimization: The support adjustment device includes a rotating drum, which is rotatably connected to the frame. Two symmetrically arranged spacing adjustment components are installed inside the rotating drum. The ends of the two spacing adjustment components that are far apart from each other are fixedly connected to their corresponding conveying supports. Sleeves and connecting rods are fixedly connected to the sides of the two conveying supports that are close to each other. The connecting rods are slidably fitted inside the sleeves. The sleeves and connecting rods are fixed together by bolts. A first hydraulic cylinder is hinged to the frame. The piston rod of the first hydraulic cylinder is hinged to the sleeve. The spacing adjustment component includes a fixed frame, which is fixedly connected to its corresponding conveying support. An adjustment rod is rotatably connected inside the fixed frame. A threaded disc is fixed inside the rotating drum. One end of the adjustment rod extends into the rotating drum and is threadedly connected to the threaded disc. The other end of the adjustment rod extends outside the fixed frame and is provided with an adjustment head.

[0019] This invention employs the aforementioned technical solution, featuring ingenious design and rational structure. Through the optimized design of the feeding device, the feeding inlet improves the guiding feeding effect of carrots. The sharp teeth on the first and second toothed chains actuate the carrots at the feeding inlet, significantly improving the quality of the carrots entering the inclined clamping conveyor. Furthermore, the power for the first and second toothed chains comes from the corresponding inclined clamping conveyor, improving power utilization, reducing energy consumption, and making the structure more compact. Additionally, the shapes of the two clamping conveyor belts at their front ends match the shape of the feeding inlet, forming a feeding channel near the inlet. This ensures that the carrots at the feeding inlet can smoothly enter the conveying channel of the inclined clamping conveyor, providing stable transport. As the carrots pass through the feeding inlet and feeding channel, the auxiliary feeding inlet and auxiliary feeding channel effectively guide and straighten the upper part of the carrot tops, further improving the feeding quality during the carrot feeding process.

[0020] Through the rational design of the fruit collection and conveying device, the first and second fruit collection drive units drive the second and third fruit collection support units, which can adjust the extension length and height of the fruit collection and conveying device to put it in working condition. At this time, driven by the third hydraulic motor, the fruit collection and conveying device is perpendicular to the direction of travel of the carrot harvester, thus facilitating the transport of carrots with trimmed tops to transfer vehicles of different sizes. The fruit collection and conveying device can also rotate to both sides of the direction of travel of the carrot harvester. In particular, through the rational design of the second fruit collection drive unit, the rotation angle range of the third fruit collection support unit around the second fruit collection support unit is greatly improved, thus facilitating the adjustment of the fruit collection and conveying device to a non-working state. At this time, driven by the third hydraulic motor, the fruit collection and conveying device rotates 90° to be aligned with the direction of travel of the carrot harvester, facilitating the movement and transport of the carrot harvester when it is not in harvesting condition.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0023] Figure 2 This is a side view of the overall structure of an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the frame structure in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the oblique clamping and conveying device in an embodiment of the present invention;

[0026] Figure 5 This is a bottom view of the oblique clamping and conveying device in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the feeding device in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the feeding device from another perspective in an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the tassel-supporting device and the gathering assembly in an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the structure of the tassel-supporting device and the gathering component from another perspective in an embodiment of the present invention;

[0031] Figure 10 This is a schematic diagram of the excavation device in an embodiment of the present invention;

[0032] Figure 11 This is a schematic diagram of the tassel-cutting device in an embodiment of the present invention;

[0033] Figure 12 This is a schematic diagram of the fruit collection and conveying device in an embodiment of the present invention;

[0034] Figure 13 This is a schematic diagram of the fruit collection and conveying device from another perspective in an embodiment of the present invention;

[0035] Figure 14 This is a schematic diagram of the fruit collection and conveying device in a non-working state according to an embodiment of the present invention;

[0036] Figure 15 for Figure 12 Enlarged structural diagram at point A;

[0037] Figure 16 for Figure 13 A magnified structural diagram at point B in the middle.

[0038] In the diagram: 1-Frame; 2-Power unit; 3-Traveling device; 4-Inclined clamping and conveying device; 401-Conveying bracket; 402-Clamping drive wheel; 403-Clamping driven wheel; 404-Clamping conveyor belt; 405-Tension wheel assembly; 406-First hydraulic motor; 5-Feeding device; 501-First support plate; 502-Second support plate; 503-First connecting column; 504-First support column; 505-Second connecting column; 506-First guide wheel; 507-Second guide wheel; 508-First intermediate sprocket; 509-First toothed chain; 510-Third connecting column; 511-Second support column; 512-Fourth connecting column; 513-Third guide wheel; 514-Fourth guide wheel; 515-Second... Intermediate sprocket; 516-Second toothed chain; 517-Third support column; 518-Fourth support column; 519-First support roller; 520-Second support roller; 521-Third support roller; 522-First guide limit belt; 523-Fifth support column; 524-Sixth support column; 525-Fourth support roller; 526-Fifth support roller; 527-Sixth support roller; 528-Second guide limit belt; 529-Tensioning block; 530-Feeding channel; 531-Auxiliary feeding channel; 6-Tassel lifting device; 601-Tassel lifting support plate; 602-First connecting frame; 603-Second connecting frame; 604-Protective cover; 605-Active tassel lifting sprocket; 606-Tassel lifting tension sprocket; 607-Tassel lifting chain; 608-Tassel lifting... Tassel claw; 609-Mounting bracket; 610-Second hydraulic motor; 7-Gathering assembly; 701-Guide block; 702-Gathering rod; 8-Digging device; 801-Digging bracket; 8011-First adjusting hole; 802-Digging connecting frame; 8021-Second adjusting hole; 803-Flat shovel; 804-Second hydraulic cylinder; 9-Support adjusting device; 901-Rotating drum; 902-Bearing assembly; 903-Sleeve; 904-Connecting rod; 905-First hydraulic cylinder; 906-Fixing frame; 907-Adjusting rod; 10-Tassel cutting device; 1001-Horizontal conveying unit; 1002-Tassel cutting unit; 11-Fruit collecting conveying device; 1101-Skirt conveyor belt; 1102-Fruit collecting support assembly; 11021-Support base ; 11022-Fruit collecting support frame; 1103-Third hydraulic motor; 1104-First fruit collecting support plate; 11041-Sliding plate limit frame; 1105-First fruit collecting connecting plate; 1106-First fruit collecting guide roller; 1107-Fruit collecting driven roller assembly; 11071-Fruit collecting sliding plate; 11072-Fruit collecting driven roller; 1108-Fruit collecting tensioning assembly; 11081-Tensioning support frame; 11082-Tensioning adjusting rod; 11083-Tensioning support block; 11084-Compression spring; 1109-Second fruit collecting support plate; 1110-Second fruit collecting connecting plate; 1111-Third fruit collecting connecting plate; 1112-Second fruit collecting guide roller; 1113-Third fruit collecting support plate; 1114-Fourth fruit collecting connecting plate;1115 - Fruit collecting drive unit; 11151 - Fruit collecting mounting plate; 11152 - Fruit collecting drive roller; 11153 - Fourth hydraulic motor; 1116 - Cylinder support seat; 1117 - Third hydraulic cylinder; 1118 - First connecting pin; 1119 - Second connecting pin; 1120 - Fourth hydraulic cylinder; 1121 - Third connecting pin; 1122 - First connecting arm; 1123 - Fourth connecting pin; 1124 - Second connecting arm; 1125 - Fruit collecting support shaft; 1126 - First limit wheel assembly; 1127 - Second limit wheel assembly. Detailed Implementation

[0039] like Figure 1-16 As shown: A double-ridge four-row carrot harvester includes a frame 1, a power unit 2 installed inside the frame 1, a walking device 3 installed below the frame 1, the walking device 3 being a tracked walking device, inclined clamping conveyor devices 4 installed on both sides of the frame 1, the two inclined clamping conveyor devices 4 being symmetrically arranged, a support adjustment device 9 for adjusting the interval distance and front end height between the two inclined clamping conveyor devices 4, a feeding device 5 installed at the front end of each of the two inclined clamping conveyor devices 4, a tassel-supporting device 6 installed above the side of each of the two feeding devices 5, a gathering component 7 fixedly connected to the lower part of each of the two tassel-supporting devices 6 away from the frame 1, a digging device 8 installed below the two feeding devices 5, a tassel-cutting device 10 installed at the rear end of each of the two inclined clamping conveyor devices 4, and a fruit-collecting conveyor 11 installed below the two tassel-cutting devices 10.

[0040] With this design, when harvesting carrots, the carrot tops of the two rows on the same ridge are first gathered into the gathering component 7. As the equipment continues to move forward, the fallen carrot tops are lifted and supported by the top-supporting device 6, making it easier for the carrot tops to enter the feeding device 5, and then smoothly enter the front end of the inclined clamping conveyor 4. This facilitates the guidance and sorting of the messy carrot tops before the digging device 8 digs out the carrots, and makes it easier for the inclined clamping conveyor 4 to stably transport the carrots after they are dug out.

[0041] The inclined clamping and conveying device 4 includes a conveying bracket 401, on which two clamping and conveying unit groups are arranged.

[0042] The clamping and conveying unit includes a clamping drive wheel 402, a clamping driven wheel 403, a clamping conveyor belt 404, and multiple tensioning wheel assemblies 405. A first hydraulic motor 406 is installed on the conveying bracket 401 near the clamping drive wheel 402. The output end of the first hydraulic motor 406 is connected to the clamping drive wheel 402 for driving the clamping drive wheel 402 to rotate, thereby driving the clamping conveyor belt 404 to rotate, thus conveying the carrots from the feeding device 5.

[0043] The support adjustment device 9 includes a rotating drum 901, which is rotatably connected to the frame 1 via bearing assemblies 902 at both ends. Two symmetrically arranged spacing adjustment components are provided inside the rotating drum 901. The ends of the two spacing adjustment components that are far apart from each other are fixedly connected to their corresponding conveying brackets 401, thereby ensuring that the two inclined clamping conveying devices 4 can rotate around the axis of the rotating drum 901, so that the front end of the inclined clamping conveying device 4 can approach or move away from the soil ridge where carrots are planted.

[0044] On the side of the two conveying brackets 401 that are close to each other, a sleeve 903 and a connecting rod 904 are respectively fixed. The connecting rod 904 is sleeved inside the sleeve 903 and slidably connected to it. The sleeve 903 and the connecting rod 904 are fixed together by bolts.

[0045] A first hydraulic cylinder 905 is hinged to the frame 1, and the piston rod of the first hydraulic cylinder 905 is hinged to the sleeve 903.

[0046] This design allows for easy adjustment of the height of the front end of the inclined clamping conveyor 4 via the first hydraulic cylinder 905, thereby ensuring that the feeding device 5, the tassel-supporting device 6, and the gathering assembly 7 are at the optimal harvesting height, thus improving the harvesting quality of carrots.

[0047] The spacing adjustment assembly includes a fixed frame 906, which is fixedly connected to its corresponding conveying bracket 401. An adjusting rod 907 is rotatably connected inside the fixed frame 906. A threaded disc is fixedly connected inside the rotating drum 901. One end of the adjusting rod 907 extends into the rotating drum 901 and is threadedly connected to the threaded disc. The other end of the adjusting rod 907 extends to the outside of the fixed frame 906 and is provided with an adjusting head.

[0048] This design allows the rotating adjustment head to easily drive the adjustment rod 907 to rotate. Since the adjustment rod 907 is threadedly connected to the threaded disc fixedly installed inside the rotating drum 901, it can drive the two fixed frames 906 to move closer or further away from each other, and thus drive the two inclined clamping conveying devices 4 to move closer or further away from each other. This allows the spacing between the two inclined clamping conveying devices 4 to be adjusted according to the spacing of the soil mound. After adjustment, the locking bolts are tightened to fix the sleeve 903 and the connecting rod 904 together, thereby firmly connecting the two inclined clamping conveying devices 4 to the frame 1.

[0049] The feeding device 5 includes a first support plate 501 and a second support plate 502, both of which are fixedly connected to the corresponding conveying bracket 401.

[0050] A first connecting post 503 is fixedly connected to the first support plate 501. A first sprocket is rotatably connected to the first connecting post 503. A clamping driven wheel 403 installed on the clamping and conveying unit corresponding to the first support plate 501 is rotatably sleeved on the first connecting post 503. The first sprocket is fixedly connected to its corresponding clamping driven wheel 403. A first support post 504 is fixedly connected to the first support plate 501. A second sprocket is rotatably connected to the first support post 504. A first toothed chain 509 is meshed between the first sprocket and the second sprocket.

[0051] A third connecting column 510 is fixedly connected to the second support plate 502. A third sprocket is rotatably connected to the third connecting column 510. A clamping driven wheel 403 installed on the clamping and conveying unit corresponding to the second support plate 502 is rotatably sleeved on the third connecting column 510. The third sprocket is fixedly connected to its corresponding clamping driven wheel 403. A second support column 511 is fixedly connected to the second support plate 502. A fourth sprocket is rotatably connected to the second support column 511. A second toothed chain 516 is meshed between the third sprocket and the fourth sprocket. A feed inlet with a trapezoidal cross-section is formed between the second toothed chain 516 and the first toothed chain 509.

[0052] This design improves the guiding effect of carrot feeding at the feeding inlet. The sharp teeth on the first toothed chain 509 and the second toothed chain 516 actuate the carrot at the feeding inlet, greatly improving the quality of the carrot entering the inclined clamping conveyor 4. Furthermore, the power of the first toothed chain 509 and the second toothed chain 516 comes from the corresponding clamping driven wheel 403. In this way, the first hydraulic motor 406 simultaneously drives the inclined clamping conveyor 4 and the feeding device 5, improving the power utilization rate, reducing energy consumption, and making the structure more compact.

[0053] Both the first support plate 501 and the second support plate 502 are provided with tensioning blocks 529 for tensioning the first toothed chain 509 or the second toothed chain 516.

[0054] The cross-sectional shape of tension block 529 is "T" shaped, and the end of tension block 529 near the toothed chain is an arc-shaped surface.

[0055] A first guide wheel 506 is rotatably connected to the first support column 504, and a second guide wheel 507 and a third guide wheel 513 are rotatably connected to the first support plate 501.

[0056] A fourth guide wheel 514 is rotatably connected to the second support column 511.

[0057] The first guide wheel 506, the second guide wheel 507, the third guide wheel 513, and the clamping driven wheel 403 on the first support plate 501 guide the corresponding clamping conveyor belt 404 near the feeding device 5. The fourth guide wheel 514 and the clamping driven wheel 403 on the second support plate 502 guide the corresponding clamping conveyor belt 404 near the feeding device 5, thereby ensuring that the shape of the front end of the two clamping conveyor belts 404 matches the shape of the feeding inlet, and forming a feeding channel 530 near the feeding inlet. The carrots in the feeding inlet can smoothly enter the conveying channel of the inclined clamping conveyor 4 through the feeding channel 530, so as to stably convey the carrots.

[0058] A second connecting post 505 is rotatably connected to the first support plate 501, and a first intermediate sprocket 508 is fixedly connected to the second connecting post 505. The first intermediate sprocket 508 is meshed with the first toothed chain 509.

[0059] The second connecting post 505 extends above the first support plate 501 and is fixedly connected to the first support roller 519. The first support plate 501 is fixedly connected to the third support post 517 and the fourth support post 518. The third support post 517 is rotatably connected to the second support roller 520, and the fourth support post 518 is rotatably connected to the third support roller 521. The first support roller 519, the second support roller 520 and the third support roller 521 are arranged in a triangle. The first support roller 519, the second support roller 520 and the third support roller 521 are connected to the first guide limiting belt 522 for transmission, so as to facilitate the transmission of the power of the first toothed chain 509 to the first guide limiting belt 522.

[0060] A fourth connecting post 512 is rotatably connected to the second support plate 502. A second intermediate sprocket 515 is fixedly connected to the fourth connecting post 512. The second intermediate sprocket 515 is meshed with the second toothed chain 516.

[0061] The fourth connecting column 512 extends above the second support plate 502 and is fixedly connected to the fourth support roller 525. The second support plate 502 is fixedly connected to the fifth support column 523 and the sixth support column 524. The fifth support roller 526 is rotatably connected to the fifth support column 523, and the sixth support roller 527 is rotatably connected to the sixth support column 524. The fourth support roller 525, the fifth support roller 526 and the sixth support roller 527 are arranged in a triangle. The fourth support roller 525, the fifth support roller 526 and the sixth support roller 527 are connected to the second guide limit belt 528 for transmission, so as to facilitate the transmission of the power of the second toothed chain 516 to the second guide limit belt 528.

[0062] An auxiliary feeding inlet and an auxiliary feeding channel 531 are provided between the first guide limit band 522 and the second guide limit band 528. The auxiliary feeding inlet and the auxiliary feeding channel 531 are respectively provided to correspond to the feeding inlet and the feeding channel 530.

[0063] This design allows the auxiliary feeding inlet and auxiliary feeding channel 531 to effectively guide and straighten the upper part of the carrot tops as the carrots pass through the feeding inlet and feeding channel 530, further improving the feeding quality during the carrot feeding process.

[0064] The tassel-supporting device 6 includes two tassel-supporting components, which are arranged symmetrically.

[0065] The tassel-supporting assembly includes a tassel-supporting support plate 601, which is fixedly connected to a first support plate 501 or a second support plate 502 via a first connecting frame 602 and a second connecting frame 603. An active tassel-supporting sprocket 605 is rotatably connected to the tassel-supporting support plate 601 near its top end, and a driven tassel-supporting sprocket is rotatably connected to the tassel-supporting support plate 601 near its bottom end. A tassel-supporting chain 607 is meshed between the active tassel-supporting sprocket 605 and the driven tassel-supporting sprocket, and a plurality of tassel-supporting claws 608 are spaced apart along its rotation direction on the tassel-supporting chain 607.

[0066] With this design, the carrot top support device 6 is tilted and located above the auxiliary feeding inlet and auxiliary feeding channel 531. The rotation of the carrot top support chain 607 drives the carrot top support claw 608 to lift and straighten the prostrate carrot top, so that the lower part of the carrot top passes through the feeding inlet and feeding channel 530 in sequence, while the upper part of the carrot top passes through the auxiliary feeding inlet and auxiliary feeding channel 531 in sequence. This ensures that the inclined clamping and conveying device 4 can smoothly and efficiently transport the carrot top with high quality.

[0067] The tassel support plate 601 is provided with a tassel tensioning sprocket 606 for tensioning the tassel chain 607.

[0068] A second hydraulic motor 610 is fixedly installed on the tassel support plate 601 near the active tassel sprocket 605 via a mounting bracket 609. The output end of the second hydraulic motor 610 is connected to the active tassel sprocket 605 for driving the active tassel sprocket 605 to rotate, thereby driving the tassel chain 607 to rotate.

[0069] A protective cover 604 is fixedly attached to the side of the tassel support plate 601 away from the feeding device 5 at a certain distance.

[0070] The gathering component 7 includes two guide blocks 701, which are fixed to the lower part of the corresponding protective cover 604 on the side away from the tassel support plate 601.

[0071] Two guide blocks 701 are fixed with a gathering rod 702 on their sides that are close to each other. The two gathering rods 702 are arranged symmetrically, which facilitates the guidance of carrot tops from the bottom between the two guide blocks 701 to the two top-supporting components of the top-supporting device 6.

[0072] A distance sensor is installed on the protective cover 604, which is used to detect whether the height of the feeding device 5 and the digging device 8 is appropriate during operation, and transmits the signal to the control system for adjustment.

[0073] The excavating device 8 includes two excavating components, which are arranged symmetrically and located below the two feeding devices 5.

[0074] The excavation assembly includes an excavation support 801, the rear end of which is hinged to the frame 1, and an excavation connecting frame 802 is slidably connected to the front end of the excavation support 801. A flat shovel 803 is fixedly connected to the front end of the excavation connecting frame 802.

[0075] The front end of the excavation support 801 is provided with multiple first adjustment holes 8011, and the excavation connecting frame 802 is provided with multiple second adjustment holes 8021. The first adjustment holes 8011 and the second adjustment holes 8021 are set accordingly.

[0076] With this design, after adjusting the front and rear positions of the flat shovel 803, the first adjustment hole 8011 and the second adjustment hole 8021 are aligned and locked with bolts, making it convenient to adjust the front and rear positions of the flat shovel 803 so that its position matches the position of the inlet.

[0077] A second hydraulic cylinder 804 is hinged to the frame 1, and the piston rod of the second hydraulic cylinder 804 is hinged to its corresponding digging support 801.

[0078] The top-cutting device 10 includes a horizontal conveying unit 1001 and a top-cutting unit 1002. The horizontal conveying unit 1001 and the top-cutting unit 1002 are located below the rear of the corresponding inclined clamping conveying device 4. They are used to transfer carrots in the inclined clamping conveying device 4 to the horizontal conveying unit 1001, and then the top-cutting unit 1002 cuts off the carrot tops. The carrots after the tops are removed fall into the fruit collection conveying device 11.

[0079] The fruit collection and conveying device 11 includes a first fruit collection support unit, one end of which is rotatably connected to a second fruit collection support unit, and the end of the second fruit collection support unit away from the first fruit collection support unit is rotatably connected to a third fruit collection support unit. Skirted conveyor belts 1101 are fitted onto the first, second, and third fruit collection support units.

[0080] Both sides of the first fruit-collecting support unit are equipped with a first fruit-collecting drive unit for driving the second fruit-collecting support unit to rotate around one end of the first fruit-collecting support unit. Both sides of the second fruit-collecting support unit are equipped with a second fruit-collecting drive unit for driving the third fruit-collecting support unit to rotate around one end of the second fruit-collecting support unit.

[0081] A fruit-collecting support assembly 1102 is fixedly connected to the lower part of the first fruit-collecting support unit. A third hydraulic motor 1103 is fixedly installed on the frame 1. The output end of the third hydraulic motor 1103 is connected to the fruit-collecting support assembly 1102, thereby driving the first fruit-collecting support unit to rotate in the horizontal direction, and then driving the fruit-collecting conveying device 11 to rotate in the horizontal direction.

[0082] The first fruit collection support unit includes two first fruit collection support plates 1104 arranged in parallel at a certain distance. Each of the two first fruit collection support plates 1104 is fixedly connected to a first fruit collection connecting plate 1105 at one end near the second fruit collection support unit. A first fruit collection guide roller 1106 is rotatably connected between the two first fruit collection connecting plates 1105.

[0083] Two first fruit-collecting support plates 1104 are slidably connected to a fruit-collecting driven roller assembly 1107 at one end away from the second fruit-collecting support unit. Both first fruit-collecting support plates 1104 are provided with a fruit-collecting tensioning assembly 1108 for driving the fruit-collecting driven roller assembly 1107 away from the first fruit-collecting support plate 1104.

[0084] The fruit collection driven roller assembly 1107 includes two fruit collection sliding plates 11071, and the two fruit collection sliding plates 11071 are rotatably connected to the fruit collection driven roller 11072 through a bearing assembly.

[0085] Each of the two first fruit collection support plates 1104 is fixedly connected to a sliding plate limiting frame 11041 on the side away from each other. A fruit collection limiting groove is provided between the sliding plate limiting frame 11041 and its corresponding first fruit collection support plate 1104. The fruit collection sliding plate 11071 is slidably connected in its corresponding fruit collection limiting groove.

[0086] The fruit collection tensioning assembly 1108 includes a tensioning support frame 11081, which is fixedly connected to its corresponding first fruit collection support plate 1104. A tensioning adjustment rod 11082 is slidably connected inside the tensioning support frame 11081. A tensioning support block 11083 is fixedly connected to the fruit collection sliding plate 11071. A through groove is provided on the sliding plate limiting frame 11041. The tensioning support block 11083 passes through the through groove and is threadedly connected to the tensioning adjustment rod 11082. Two nuts are threadedly connected to the tensioning adjustment rod 11082. A compression spring 11084 is sleeved on the tensioning adjustment rod 11082 at the position between the tensioning support block 11083 and the nuts.

[0087] The fruit collection support assembly 1102 includes a support base 11021. The output end of the third hydraulic motor 1103 is connected to the support base 11021 for transmission. Two fruit collection support frames 11022 are fixedly connected to the support base 11021. The other end of the fruit collection support frame 11022 is fixedly connected to its corresponding first fruit collection support plate 1104.

[0088] The second fruit-collecting support unit includes two parallel second fruit-collecting support plates 1109 spaced at a certain distance. A second fruit-collecting connecting plate 1110 is fixedly connected to one end of each second fruit-collecting support plate 1109 near the first fruit-collecting support unit. The second fruit-collecting connecting plate 1110 is rotatably connected to the first fruit-collecting guide roller 1106. A third fruit-collecting connecting plate 1111 is fixedly connected to one end of each second fruit-collecting support plate 1109 near the third fruit-collecting support unit. A second fruit-collecting guide roller 1112 is rotatably connected between the two third fruit-collecting connecting plates 1111.

[0089] The third fruit collection support unit includes two third fruit collection support plates 1113 arranged in parallel at a certain distance. A fourth fruit collection connecting plate 1114 is fixedly connected to the end of each of the two third fruit collection support plates 1113 near the second fruit collection support unit. The fourth fruit collection connecting plate 1114 is rotatably connected to the second fruit collection guide roller 1112. A fruit collection drive unit 1115 is provided at the end of each of the two third fruit collection support plates 1113 away from the second fruit collection support unit.

[0090] The fruit collection drive unit 1115 includes two fruit collection mounting plates 11151, which are fixedly connected to their corresponding third fruit collection support plates 1113. The two fruit collection mounting plates 11151 are rotatably connected to a fruit collection drive roller 11152 through a bearing assembly. A fourth hydraulic motor 11153 is fixedly mounted on either of the fruit collection mounting plates 11151, and the output end of the fourth hydraulic motor 11153 is connected to the fruit collection drive roller 11152 for transmission.

[0091] The first fruit collection drive unit includes a cylinder support 1116, which is fixedly connected to its corresponding first fruit collection support plate 1104. A third hydraulic cylinder 1117 is hinged to the cylinder support 1116, and a first connecting pin 1118 is fixedly connected to the second fruit collection connecting plate 1110. The piston rod of the third hydraulic cylinder 1117 is hinged to the first connecting pin 1118.

[0092] The second fruit collection drive unit includes a second connecting pin 1119, which is fixedly connected to its corresponding second fruit collection connecting plate 1110. A fourth hydraulic cylinder 1120 is hinged to the second connecting pin 1119. A third connecting pin 1121 is fixedly connected to the third fruit collection connecting plate 1111. A first connecting arm 1122 is hinged to the third connecting pin 1121. A fourth connecting pin 1123 is fixedly connected to the fourth fruit collection connecting plate 1114. A second connecting arm 1124 is hinged to the fourth connecting pin 1123. Both the first connecting arm 1122 and the second connecting arm 1124 have an arc-shaped structure. The ends of the first connecting arm 1122 and the second connecting arm 1124 that are close to each other are rotatably connected to a fruit collection support shaft 1125. The piston rod of the fourth hydraulic cylinder 1120 is hinged to the fruit collection support shaft 1125.

[0093] A first limiting wheel set 1126 is provided on the first fruit collecting connecting plate 1105 above the first fruit collecting support plate 1104. It is used to limit the position of the skirt conveyor belt 1101 at the connection between the first fruit collecting support unit and the second fruit collecting support unit, so that the skirt conveyor belt 1101 is always close to the first fruit collecting support unit and the second fruit collecting support unit.

[0094] The third fruit collecting connecting plate 1111 is provided with second limiting wheel sets 1127 at both sides of the second fruit collecting support plate 1109. These sets limit the position of the skirt conveyor belt 1101 at the connection between the second and third fruit collecting support units, ensuring that the skirt conveyor belt 1101 is always close to the second and third fruit collecting support units.

[0095] This design, by driving the second and third fruit-collecting support units through the first and second fruit-collecting drive units, allows for adjustment of the extension and retraction length and height of the fruit-collecting conveyor 11, enabling the fruit-collecting conveyor 11 to be in a position... Figure 12 In the indicated state, driven by the third hydraulic motor 1103, the fruit-collecting conveyor 11 is perpendicular to the direction of travel of the carrot harvester, thus facilitating the transport of carrots with trimmed tops to transfer vehicles of different sizes. Furthermore, the fruit-collecting conveyor can rotate to either side of the carrot harvester's direction of travel. In particular, through the rational design of the second fruit-collecting drive unit, the angular range of rotation of the third fruit-collecting support unit around the second fruit-collecting support unit is greatly increased, thereby facilitating the adjustment of the fruit-collecting conveyor 11 to... Figure 14 In this state, driven by the third hydraulic motor 1103, the fruit collection and conveying device 11 rotates 90° to be aligned with the direction of travel of the carrot harvester, which facilitates the movement and transportation of the carrot harvester when it is not in the harvesting state.

[0096] For those skilled in the art, any changes, modifications, substitutions, and variations made to the embodiments without departing from the principles and spirit of the present invention, based on the teachings of the present invention, still fall within the protection scope of the present invention.

Claims

1. A double-row, four-ridge carrot harvester, comprising a frame (1), characterized in that: A power unit (2) is installed inside the frame (1), and a traveling device (3) is installed below the frame (1). Inclined clamping conveying devices (4) are installed on both sides of the frame (1). Each inclined clamping conveying device (4) includes a conveying support (401). Two clamping conveying unit assemblies are installed on the conveying support (401). Each clamping conveying unit assembly includes a clamping drive wheel (402), a clamping driven wheel (403), a clamping conveyor belt (404), and multiple tensioning wheel assemblies (405). An adjustment mechanism is provided between the two inclined clamping conveying devices (4). The support adjustment device (9) for the interval distance and front height, the feeding device (5) is provided at the front of the two inclined clamping conveyor devices (4), the tassel-supporting device (6) is provided on the upper side of the two feeding devices (5), the gathering component (7) is fixedly connected to the lower part of the two tassel-supporting devices (6) on the side away from the frame (1), the digging device (8) is provided below the two feeding devices (5), the tassel-cutting device (10) is provided at the rear end of the two inclined clamping conveyor devices (4), and the fruit collection conveyor device (11) is provided below the two tassel-cutting devices (10). The feeding device (5) includes a first support plate (501) and a second support plate (502). Both the first support plate (501) and the second support plate (502) are fixedly connected to the corresponding conveying brackets (401). A first connecting column (503) is fixedly connected to the first support plate (501), and a first sprocket is rotatably connected to the first connecting column (503). A clamping driven wheel (403) installed on the clamping conveying unit corresponding to the first support plate (501) is rotatably sleeved on the first connecting column (503). The first sprocket is fixedly connected to its corresponding clamping driven wheel (403). A first support column (504) is fixedly connected to the first support plate (501), and a second sprocket is rotatably connected to the first support column (504). The first sprocket and the second sprocket are connected to each other. A first toothed chain (509) is intermeshingly connected to the second support plate (502), a third connecting post (510) is fixedly connected to the second support plate (502), a third sprocket is rotatably connected to the third connecting post (510), a clamping driven wheel (403) installed on the clamping and conveying unit corresponding to the second support plate (502) is rotatably sleeved on the third connecting post (510), the third sprocket is fixedly connected to its corresponding clamping driven wheel (403), a second support post (511) is fixedly connected to the second support plate (502), a fourth sprocket is rotatably connected to the second support post (511), a second toothed chain (516) is intermeshing between the third sprocket and the fourth sprocket, and a feed inlet with a trapezoidal cross-section is formed between the second toothed chain (516) and the first toothed chain (509); A first guide wheel (506) is rotatably connected to the first support column (504), and a second guide wheel (507) and a third guide wheel (513) are rotatably connected to the first support plate (501). The first guide wheel (506), the second guide wheel (507), the third guide wheel (513) and the clamping driven wheel (403) provided on the first support plate (501) guide the corresponding clamping conveyor belt (404) at the position near the feeding device (5). A fourth guide wheel (514) is rotatably connected to the second support column (511). The fourth guide wheel (514) and the clamping driven wheel (403) provided on the second support plate (502) guide the corresponding clamping conveyor belt (404) at the position near the feeding device (5). The shape of the front end of the two clamping conveyor belts (404) matches the shape of the feeding inlet, and a feeding channel (530) is formed at the position near the feeding inlet. A second connecting post (505) is rotatably connected to the first support plate (501). A first intermediate sprocket (508) is fixedly connected to the second connecting post (505). The first intermediate sprocket (508) meshes with a first toothed chain (509). The second connecting post (505) extends above the first support plate (501) and is fixedly connected to a first support roller (519). A second support roller (520) and a third support roller (521) are rotatably connected to the first support plate (501). The first support roller (519), the second support roller (520), and the third support roller (521) are arranged in a triangle. A first guide limit belt (522) is drivenly connected to the first support roller (519), the second support roller (520), and the third support roller (521). A fourth connecting post (512) is rotatably connected to the second support plate (502). A second intermediate sprocket (508) is fixedly connected to the fourth connecting post (512). The intermediate sprocket (515) and the second intermediate sprocket (515) are meshed with the second toothed chain (516). The fourth connecting post (512) extends above the second support plate (502) and is fixedly connected to the fourth support roller (525). The second support plate (502) is rotatably connected to the fifth support roller (526) and the sixth support roller (527). The fourth support roller (525), the fifth support roller (526) and the sixth support roller (527) are arranged in a triangle. The fourth support roller (525), the fifth support roller (526) and the sixth support roller (527) are drivenly connected to the second guide limit belt (528). An auxiliary feeding inlet and an auxiliary feeding channel (531) are provided between the first guide limit belt (522) and the second guide limit belt (528). The auxiliary feeding inlet and the auxiliary feeding channel (531) are respectively provided to correspond to the feeding inlet and the feeding channel (530). The tassel-supporting device (6) includes two symmetrically arranged tassel-supporting components. Each tassel-supporting component includes a tassel-supporting support plate (601). The tassel-supporting support plate (601) is fixedly connected to a first support plate (501) or a second support plate (502). An active tassel-supporting sprocket (605) is rotatably connected to the tassel-supporting support plate (601) near its top end. A driven tassel-supporting sprocket is rotatably connected to the tassel-supporting support plate (601) near its bottom end. A tassel-supporting chain (607) is meshed between the active tassel-supporting sprocket (605) and the driven tassel-supporting sprocket. Multiple tassel-supporting claws (608) are spaced apart along the rotation direction on the tassel-supporting chain (607). A protective cover (604) is fixedly attached at a certain distance on the side of the tassel-supporting support plate (601) away from the feeding device (5). The gathering component (7) includes two guide blocks (701). The guide blocks (701) are fixed to the lower part of the corresponding protective cover (604) on the side away from the tassel support plate (601). The two guide blocks (701) are fixed to the side of each other with a gathering rod (702). The two gathering rods (702) are arranged symmetrically.

2. The double-ridge, four-row carrot harvester according to claim 1, characterized in that: The fruit collection and conveying device (11) includes a first fruit collection support unit, a second fruit collection support unit rotatably connected to one end of the first fruit collection support unit, a third fruit collection support unit rotatably connected to the end of the second fruit collection support unit away from the first fruit collection support unit, a skirted conveyor belt (1101) fitted on the first fruit collection support unit, the second fruit collection support unit and the third fruit collection support unit, a first fruit collection drive unit for driving the second fruit collection support unit to rotate around one end of the first fruit collection support unit is installed on both sides of the first fruit collection support unit, a second fruit collection drive unit for driving the third fruit collection support unit to rotate around one end of the second fruit collection support unit is installed on both sides of the second fruit collection support unit, a fruit collection support assembly (1102) is fixedly connected to the bottom of the first fruit collection support unit, a third hydraulic motor (1103) is fixedly installed on the frame (1), and the output end of the third hydraulic motor (1103) is connected to the fruit collection support assembly (1102) for transmission.

3. A double-ridge, four-row carrot harvester according to claim 2, characterized in that: The first fruit-collecting support unit includes two first fruit-collecting support plates (1104) arranged parallel to each other at a certain distance. A first fruit-collecting connecting plate (1105) is fixedly connected to the end of each of the two first fruit-collecting support plates (1104) near the second fruit-collecting support unit. A first fruit-collecting guide roller (1106) is rotatably connected between the two first fruit-collecting connecting plates (1105). A fruit-collecting driven roller assembly (1107) is slidably connected to the end of each of the two first fruit-collecting support plates (1104) away from the second fruit-collecting support unit. Each of the two first fruit-collecting support plates (1104) is provided with a fruit-collecting tensioning assembly (1108) for driving the fruit-collecting driven roller assembly (1107) away from the first fruit-collecting support plate (1104). The second fruit-collecting support unit includes two second fruit-collecting support plates (1109) arranged parallel to each other at a certain distance. The two second fruit-collecting support plates (1109) are located near the end of each of the first fruit-collecting support units. One end of each of the three fruit collection units is fixedly connected to a second fruit collection connecting plate (1110). The second fruit collection connecting plate (1110) is rotatably connected to the first fruit collection guide roller (1106). The two second fruit collection support plates (1109) are fixedly connected to a third fruit collection connecting plate (1111) at the end near the third fruit collection support unit. The two third fruit collection connecting plates (1111) are rotatably connected to a second fruit collection guide roller (1112). The third fruit collection support unit includes two third fruit collection support plates (1113) arranged in parallel at a certain distance. The two third fruit collection support plates (1113) are fixedly connected to a fourth fruit collection connecting plate (1114) at the end near the second fruit collection support unit. The fourth fruit collection connecting plate (1114) is rotatably connected to the second fruit collection guide roller (1112). The two third fruit collection support plates (1113) are provided with a fruit collection drive unit (1115) at the end away from the second fruit collection support unit.

4. A double-ridge, four-row carrot harvester according to claim 3, characterized in that: The first fruit-collecting drive unit includes a cylinder support base (1116), which is fixedly connected to its corresponding first fruit-collecting support plate (1104). A third hydraulic cylinder (1117) is hinged to the cylinder support base (1116), and a first connecting pin (1118) is fixedly connected to the second fruit-collecting connecting plate (1110). The piston rod of the third hydraulic cylinder (1117) is hinged to the first connecting pin (1118). The second fruit-collecting drive unit includes a second connecting pin (1119), which is fixedly connected to its corresponding second fruit-collecting connecting plate (1110). A fourth hydraulic cylinder (1120) is hinged to the second connecting pin (1119), and a third connecting pin (1121) is fixedly connected to the third fruit-collecting connecting plate (1111). A first connecting pin (1120) is hinged to the third connecting pin (1121). A fourth connecting pin (1123) is fixedly connected to the connecting arm (1122) and the fourth fruit collection connecting plate (1114). A second connecting arm (1124) is hinged to the fourth connecting pin (1123). The first connecting arm (1122) and the second connecting arm (1124) are both arc-shaped structures. The ends of the first connecting arm (1122) and the second connecting arm (1124) that are close to each other are rotatably connected to the fruit collection support shaft (1125). The piston rod of the fourth hydraulic cylinder (1120) is hinged to the fruit collection support shaft (1125). A first limiting wheel group (1126) is provided on the first fruit collection connecting plate (1105) above the first fruit collection support plate (1104). A second limiting wheel group (1127) is provided on both sides of the second fruit collection support plate (1109) on the third fruit collection connecting plate (1111).

5. A double-ridge, four-row carrot harvester according to claim 1, characterized in that: The support adjustment device (9) includes a rotating drum (901), which is rotatably connected to the frame (1). Two symmetrically arranged spacing adjustment components are installed inside the rotating drum (901). The ends of the two spacing adjustment components that are far apart from each other are fixedly connected to their corresponding conveying supports (401). A sleeve (903) and a connecting rod (904) are fixedly connected to the sides of the two conveying supports (401) that are close to each other. The connecting rod (904) is slidably fitted inside the sleeve (903). The sleeve (903) and the connecting rod (904) are fixed together by bolts. (1) A first hydraulic cylinder (905) is hinged on the upper part. The piston rod of the first hydraulic cylinder (905) is hinged to the sleeve (903). The spacing adjustment assembly includes a fixed frame (906). The fixed frame (906) is fixedly connected to its corresponding conveying bracket (401). An adjusting rod (907) is rotatably connected inside the fixed frame (906). A threaded disc is fixedly connected inside the rotating drum (901). One end of the adjusting rod (907) extends into the rotating drum (901) and is threadedly connected to the threaded disc. The other end of the adjusting rod (907) extends to the outside of the fixed frame (906) and is provided with an adjusting head.

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