Tomato harvester

Abstract

The application discloses a tomato harvester, which comprises a frame, a cutting platform, a fruit and stem separation system, a transverse conveying system, a dirt removal fan, a color selection system, a discharging device and a power system. The fruit and stem separation system comprises a conveying feeding device arranged on the frame, a separation channel for the fruit and stem, a fruit and stem separator, a vibration generator, a roller driving device, a fruit conveying device and a stem conveying device. A dirt removal roller and a dirt removal motor for driving the dirt removal roller to rotate are arranged in the separation channel. The rotating direction of the dirt removal roller is opposite to the rotating direction of the conveying feeding device, so that the mulching film and the drip irrigation belt are thrown out of the separation channel. The structure is ingenious, the fruit and stem can be continuously and efficiently separated, the work is safe, the stability is good, and the reliability is high.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular, to a tomato harvester. Background Technology

[0002] In recent years, the planting area and yield of processing tomatoes in my country have been steadily increasing. Manual harvesting can no longer meet the pace of industrialized processing tomato production, thus requiring equipment that can automatically harvest processing tomatoes. Due to the growth characteristics, planting patterns, and processing plant requirements of processing tomatoes, the harvesting equipment needs to have main functions such as harvesting, separating, removing impurities, color sorting, and loading and unloading, as well as other supporting auxiliary functions, in order to achieve high-quality and high-efficiency harvesting of processing tomatoes.

[0003] Existing tomato harvesters have the following problems in actual use:

[0004] 1. In China, tomato cultivation uses a combination of plastic film mulch and drip irrigation tape. This film and tape end up in the subsequent working parts, leading to a high impurity rate in the fruit. Furthermore, the film and tape become entangled in rotating components such as the rollers of the vibrating separator and the rollers of the conveyor belts, causing them to jam and turning rolling friction into sliding friction. This accelerates wear and tear on parts and can even force the machine to stop. Users need to frequently clean the film and tape from the rotating parts, wasting considerable time and effort and reducing profits. In addition, after being separated by the vine separator, some tomato fruits remain entangled in the vine stems. Existing tomato harvesters' vine conveyor belts throw these fruits, along with the vine stems, into the field, requiring further manual processing to minimize tomato loss. This manual processing is labor-intensive and costly.

[0005] 2. The color sorting device is suspended and supported by adjusting multiple degrees of freedom using multiple hydraulic cylinders. This method requires a large installation space, and the structure and control program of the multi-cylinder suspension adjustment method are relatively complex and costly. In addition, the working environment of the tomato harvester is complex and harsh. During harvesting, the juice from the broken tomatoes mixes with the soil, causing the soil to adhere to the conveyor belt, increasing the weight of the conveyor belt and causing it to slip, which seriously affects the transportation of tomatoes. Furthermore, it is difficult to achieve uniform distribution of tomatoes on a horizontally arranged conveyor belt. Stacked tomatoes entering the color sorter at the same time will reduce the sorting accuracy of the color sorter.

[0006] 3. Most of the cleaning fans are dedicated machines with limited functions. These cleaning fans have low efficiency in cleaning up debris such as stalks, plastic film, and drip irrigation tape contained in the material flow of tomato harvesters. Manual cleaning is still required after harvesting, which is labor-intensive. At the same time, plastic film and drip irrigation tape can easily jam the parts of the tomato harvester, causing mechanical failures. Downtime for repair will consume a lot of material and time costs.

[0007] 4. Most unloading devices are fixed structures, using conveyor belts, bolt conveyors, etc. for unloading. On the one hand, such devices require a large installation space, and on the other hand, most of these devices can only be adjusted by simple rotation or translation. However, during the unloading process of tomato harvesters, the unloading device needs to be highly controllable due to the influence of the transfer vehicle and field conditions, and can arbitrarily change the unloading height, unloading angle, etc. At the same time, as agricultural machinery, tomato harvesters need different modes in different stages of transfer and operation. Therefore, the existing conveying devices are not suitable for the working conditions of tomato harvesters. Summary of the Invention

[0008] The present invention provides a tomato harvester to solve one or more of the above-mentioned technical problems.

[0009] According to one aspect of the present invention, a tomato harvester is provided, comprising a frame, wherein the frame is provided with a cutting platform for cutting tomato fruits and vines together; a fruit-vine separation system for separating tomato fruits from vines; a transverse conveying system for receiving the separated tomato fruits; a dust removal fan for removing impurities from the tomato fruits on the transverse conveying system; a color sorting system for receiving the tomato fruits on the transverse conveying system and removing substandard fruits and impurities from the tomato stream; an unloading device for unloading the sorted tomato fruits into a transfer vehicle; and a power system for providing power for various actions and movement of the tomato harvester. The fruit-vine separation system includes components mounted on the frame. The system includes a conveying and feeding device for transporting seedlings, a separation channel for receiving the seedlings fed by the conveying and feeding device, a seedling separator for separating the seedlings in the separation channel, a vibration generator for driving the seedling separator to vibrate, a roller drive device for driving the seedling separator to rotate, a fruit conveying device for transporting the separated fruits, and a seedling stem conveying device for transporting the separated seedling stems and screening out the fruits entangled in the seedling stems. The separation channel is equipped with a cleaning roller and a cleaning motor for driving the cleaning roller to rotate. The rotation direction of the cleaning roller is opposite to the rotation direction of the conveying and feeding device, so as to throw the mulch film and drip irrigation tape out of the separation channel.

[0010] The frame provides mounting interfaces for the remaining components and positions and assists in fixing them. The feeding device, located at the front of the seedling separator, uniformly feeds the seedling material into the separation channel and prevents slippage. The vibration generator, seedling separator, and roller drive are mounted transversely on the frame along the same axis. The vibration generator generates vibration through rapid alternating motion. One end of the seedling separator is connected to the vibration generator, and the other end is connected to the roller drive. The seedling separator undergoes a combined rolling vibration motion under the combined action of the vibration generator and the roller drive. The fruit conveying device is located directly below the separation channel, while the stem conveying device is positioned below and behind the separation channel, above the fruit conveying device. The grid spacing of the stem conveying device is larger than that of the fruit conveying device. In operation, the feeding device feeds the seedlings into the entrance of the separation channel. After the seedlings fall into the separation channel, the vibration generator and roller drive simultaneously drive the seedling separator to vibrate while rotating, separating the fruit from the stem within the separation channel. The separated fruit exits through the separation channel. The seedlings fall into the soil and are collected and transported by the fruit conveying device. The separated seedlings exit from the separation channel and are then carried by the seedling conveying device. During this process, the seedling conveying device screens out any fruits entangled in the seedlings, and these screened-out fruits are also collected and transported by the fruit conveying device, reducing waste and increasing profits. The cleaning roller, located below the conveying and feeding device, is a smooth steel cylinder that forms a narrow gap with the conveying and feeding device. The cleaning roller rotates in the opposite direction to the conveying and feeding device. The plastic film and drip irrigation tape in the material flow are... The narrow gap formed by the conveying and feeding device and the cleaning roller is clamped. As the conveying and feeding device and the cleaning roller rotate in opposite directions, the plastic film and drip irrigation tape are pulled out of the separation channel. The fruit and vines cannot pass through the narrow gap, thus achieving the purpose of cleaning. This effectively avoids the plastic film and drip irrigation tape from entering the subsequent working parts, which could cause the rotating parts to get stuck, accelerate the wear of parts, or even force the machine to stop. This reduces downtime and improves the efficiency of tomato harvesting. Its ingenious structure can continuously and efficiently separate fruit and vines, and it is safe, stable, and reliable in operation.

[0011] Furthermore, the fruit conveying device includes a fruit conveyor belt, a first conveying motor, a first drive shaft driven by the first conveying motor, a first tensioning sleeve sleeved on the first drive shaft, a first drive wheel sleeved on the first tensioning sleeve for driving the fruit conveyor belt, and a cleaning roller arranged on the return section of the fruit conveyor belt. The cleaning roller includes a mounting plate spaced on the frame, a sprocket rotatably connected to the mounting plate, a metal rod with both ends respectively connected to the corresponding sprocket, and a tension spring for keeping the metal rod always engaged with the fruit conveyor belt.

[0012] The first tensioning sleeve includes a tapered sleeve, a tensioning sleeve for connecting the first drive wheel, and a screw for connecting the tapered sleeve and the tensioning sleeve. The inner hole of the tensioning sleeve is an inner cone shape adapted to the tapered sleeve. Both the tapered sleeve and the tensioning sleeve have notches. The outer surface of the tapered sleeve is a tapered surface, and the inner hole of the tensioning sleeve is a tapered hole. The tapered sleeve is fitted onto the first drive shaft, and then the inner hole of the tensioning sleeve is fitted onto the outer surface of the tapered sleeve. The first drive wheel is then fitted onto the tensioning sleeve. The tapered sleeve and the tensioning sleeve are tightened by tightening the screw, increasing the contact area between the inner hole of the tensioning sleeve and the outer surface of the tapered sleeve. Because both the tapered sleeve and the tensioning sleeve have notches, the outer diameter of the tensioning sleeve increases, resulting in a tight connection between the outer surface of the tensioning sleeve and the inner hole of the first drive wheel. At the same time, the inner diameter of the tapered sleeve decreases, resulting in a tight connection between the inner hole of the tapered sleeve and the outer wall of the first drive shaft, thereby achieving a tight connection between the first drive wheel and the tensioning sleeve. Axial positioning on the first drive shaft: When adjusting the axial position of the first drive wheel, loosen the screws, the outer diameter of the tension sleeve decreases, and the inner diameter of the tapered sleeve increases, thereby adjusting the axial position of the first drive wheel on the first drive shaft. The two first drive wheels can not only drive the fruit conveyor belt to rotate, but also axially position the fruit conveyor belt to prevent axial movement. The requirements for the straightness, roundness, and surface smoothness of the first drive shaft are not high, the processing is convenient, and the cost can be saved. The first conveyor motor drives the fruit conveyor belt to rotate through the first drive wheel. The fruit conveyor belt can drive the cleaning roller to rotate. The cleaning roller does not require additional power, which can reduce energy consumption. The metal rod is inserted into the gap between the fruit conveyor belts to push out the dirt between the fruit conveyor belts, effectively removing the debris in the gaps of the fruit conveyor belt, keeping the fruit conveyor belt clean, and reducing the failure of meshing caused by debris between the connecting rods of the fruit conveyor belt.

[0013] Furthermore, the seedling conveying device includes a seedling conveyor belt, a second conveying motor, a second drive shaft driven by the second conveying motor, a second tensioning sleeve sleeved on the second drive shaft, a second drive wheel sleeved on the second tensioning sleeve for driving the seedling conveyor belt, and a seedling vibrator arranged on the conveying section of the seedling conveyor belt. The seedling vibrator includes a vibrating motor, a third drive shaft driven to rotate by the vibrating motor, and a vibrating wheel sleeved on the third drive shaft for driving the seedling conveyor belt to undulate and vibrate.

[0014] The structure of the second tensioning sleeve is the same as that of the first tensioning sleeve; the second conveying motor drives the seedling conveyor belt to rotate through the second drive wheel, and the two ends of the third drive shaft are rotatably connected to the frame through bearing seats. The shaking wheel is located on the lower side of the seedling conveyor belt. When the shaking motor drives the third drive shaft to rotate, the shaking wheel makes the movement trajectory of the left and right sides of the seedling conveyor belt inconsistent, producing alternating undulating shaking, which shakes off a small amount of fruit mixed in with the seedlings onto the fruit conveyor belt below. This can effectively shake out and collect the fruit mixed in with the seedlings, reduce waste, and increase profits.

[0015] Furthermore, the cutting platform includes a seedling separating device for separating tomato vines that are entangled across the ridge, a seedling picking device for lifting the roots of the tomato vines, a cutting device for cutting the vines, an auxiliary feeding device adapted to the seedling picking device, a conveying device for conveying the vines to the conveying and feeding device, a power roller for supporting the cutting platform as it moves on the ridge, a cutting platform lifting cylinder for adjusting the height of the cutting platform off the ground, and a cutting platform frame for keeping the cutting platform parallel to the ground. The cutting platform frame includes a conveyor belt frame and a cutting platform connection assembly rotatably connected to the conveyor belt frame.

[0016] When the furrow height changes, the seedling separating device keeps the cutter frame parallel to the ground, preventing the cutting and seedling-carrying devices from getting into the soil and causing wear, or the tomatoes from being damaged by excessively high cuts. Because the cutter connection assembly can rotate relative to the conveyor belt frame, when the conveyor belt frame rotates for leveling, the cutter connection assembly will not rotate. This ensures that when the cutter is kept parallel to the ground, the frame can also be adjusted to keep the color sorting device horizontal. This not only prevents the seedling-carrying poles and cutters from getting into the soil and reducing wear, but also prevents the seedling-carrying poles and cutters from damaging the tomatoes, improving harvesting efficiency, and ensuring the normal operation of the color sorting system. Its ingenious structure improves harvesting efficiency and is suitable for different environments.

[0017] Furthermore, the vehicle frame includes an upper frame, a lower frame for supporting the upper frame, a front axle mounted on the lower frame, a front axle driveshaft for driving the front axle, a rear axle mounted on the lower frame, a rear axle driveshaft for driving the rear axle, tires for supporting the movement of the lower frame, a gearbox, a motor, and a first leveling cylinder for keeping the lower frame horizontal. Front axle cylinder supports are respectively mounted at both ends of the front axle. A set of first leveling cylinders has a first end hinged to the front axle cylinder support and a second end hinged to the lower frame. Rear axle cylinder supports are respectively mounted at both ends of the rear axle. Another set of first leveling cylinders has a first end hinged to the rear axle cylinder support and a second end hinged to the lower frame. The motor is connected to the front axle driveshaft and the rear axle driveshaft respectively via the gearbox.

[0018] One set (two) of first leveling cylinders are symmetrically arranged on the front axle. The top of the first leveling cylinder is connected to the underframe, and the bottom is connected to the front axle through the front axle cylinder support. Another set (two) of first leveling cylinders are symmetrically arranged on the rear axle. The top of the first leveling cylinder is connected to the underframe, and the bottom is connected to the rear axle through the rear axle cylinder support. Both ends of the first leveling cylinder are equipped with spherical bearings. The front and rear axles can be laterally swayed by the extension and retraction of the first leveling cylinders. By controlling the stroke of the first leveling cylinders on both sides of the front and rear axles, the rotation angle of the front axle centered on the front axle drive shaft and the rotation angle of the rear axle centered on the rear axle drive shaft can be adjusted to keep the underframe horizontal, thereby keeping the color sorting system on the frame horizontal and ensuring color sorting accuracy.

[0019] Furthermore, the air intake end of the power system is equipped with a rotary dust removal device. The rotary dust removal device includes a radiator frame mounted on the vehicle frame, a dust removal door frame mounted on the radiator frame, a rotating air intake hood mounted on the dust removal door frame, a discharge pipe for sucking up impurities from the air intake hood, a dust removal hood drive wheel system for driving the air intake hood to rotate, a dust removal fan connected to the discharge pipe, a transition mechanism for driving the dust removal hood drive wheel system, a fan drive for driving the dust removal fan, an engine for driving the fan drive, and a radiator for cooling the engine. The air intake hood is a perforated plate, and a baffle plate corresponding to the discharge pipe is mounted on the dust removal door frame. The discharge pipe and the baffle plate are respectively mounted on both sides of the air intake hood.

[0020] Further, the impurity removal fan includes a fan housing, a fan mounting base disposed on the fan housing for connecting the vehicle frame, an adjusting rod disposed on the fan housing for adjusting the air outlet angle of the fan housing, a left air inlet shroud disposed on the first end of the fan housing, a middle air inlet shroud disposed in the middle of the fan housing, a right air inlet shroud disposed on the second end of the fan housing, an air inlet arc plate disposed on the housing for forming an air inlet channel, an air outlet grid disposed in the air outlet of the fan housing, and an air outlet grid disposed in the air outlet of the fan housing. The impeller assembly within the inner cavity of the fan casing includes a left air inlet shroud, a middle air inlet shroud, a right air inlet shroud, and an air inlet arc plate, all of which are perforated plates. The left air inlet shroud is connected to the middle air inlet shroud, and the right air inlet shroud is connected to the middle air inlet shroud via the air inlet arc plate. The impeller assembly includes a support bearing, a drive motor for driving the support bearing to rotate, and fan impellers spaced apart on the support bearing. A gap is left between the blades of the fan impeller and the outer wall of the support bearing.

[0021] The fan casing is equipped with air outlets arranged along its axial direction. An outlet grid is installed inside the outlets to prevent falling tomatoes, stones, mulch film, and drip irrigation tape from entering the fan, thus avoiding damage to the fan impeller assembly and reducing downtime and maintenance costs. Two fan impellers are symmetrically arranged on both sides of the central air inlet shroud. Air enters the central air inlet shroud through the air inlet channel, and then is diverted into the fan casing by the central air inlet shroud. The airflow is then circulated by the two symmetrically arranged fan impellers. Pressurization ensures uniform airflow at the outlet; the gap between the impeller blades and the outer wall of the support bearing increases the air velocity and pressure at the outlet. If the impeller blades are stretched to the outer wall of the support bearing, the flow area is reduced, and the blades also obstruct the airflow, resulting in a decrease in both air velocity and pressure at the outlet; the impurity removal fan has a clever structure and low cost, avoiding dead zones in impurity removal, thereby improving tomato sorting efficiency, reducing the impurity content of tomatoes, and reducing the labor intensity of workers.

[0022] Furthermore, the color sorting system includes a pre-sorting conveying device, a primary color sorting device, a secondary color sorting device, a suspension device, and a pre-unloading conveying device. The suspension device includes a suspension frame welded together, a suspension mounting plate, a suspension shaft welded together, a second leveling cylinder, a primary color sorting tie rod, a secondary color sorting tie rod, a color sorting connecting frame, a bearing with a seat, a pin, and a level. One end of the suspension frame welded together is fixedly connected to the vehicle frame, and the other end is hinged to the color sorting connecting frame through the second leveling cylinder. The suspension mounting plate is fixedly connected to the vehicle frame. The suspension shaft welded together is rotatably arranged between the suspension frame welded together and the suspension mounting plate through two bearings with seats. The primary color sorting rod and the secondary color sorting rod are respectively hinged to the two ends welded to the suspension shaft. One end of the primary color sorting rod is hinged to the first end welded to the suspension shaft, and the other end is hinged to the color sorting connecting frame connected to the primary color sorting device. One end of the secondary color sorting rod is hinged to the second end welded to the suspension shaft, and the other end is hinged to the color sorting connecting frame connected to the secondary color sorting device. The end of the primary color sorting device away from the color sorting connecting frame is hinged to the vehicle frame. The end of the secondary color sorting device away from the color sorting connecting frame is hinged to the vehicle frame. The level is mounted on the primary color sorting device or the secondary color sorting device.

[0023] The pre-sorting conveyor carries the tomato material flow and transports it backward. The primary color sorting device receives the tomatoes for the first sorting, and the secondary color sorting device receives the tomatoes after the first sorting and performs a second sorting to remove unripe tomatoes, ensuring sorting accuracy. The tomatoes after the second sorting are received and transported by the pre-unloading conveyor. The primary and secondary color sorting devices are connected to the primary and secondary color sorting rods respectively through two color sorting connecting frames. The primary and secondary color sorting rods are hinged to the two ends of the suspension shaft welded together. When the telescopic mechanism extends or retracts, it can drive the suspension shaft to rotate, thereby realizing the synchronous movement of the primary and secondary color sorting rods. Its structure is simple, occupies little space, and can simultaneously complete the adjustment of the two connecting beams through a single telescopic mechanism. The control logic is simple, with good applicability and versatility, and is easy to assemble and disassemble. It enables the color sorting device to achieve optimal operating conditions, ensures sorting accuracy, reduces the labor intensity of operators, and saves labor and material costs.

[0024] Furthermore, the unloading device includes boom 1, boom 2, boom 3 and boom 4 connected in sequence, and also includes an unloading belt wound around boom 1, boom 2, boom 3 and boom 4, a hydraulic motor for driving the unloading belt, a two- or three-section boom adjustment mechanism for adjusting the angle between boom 2 and boom 3, an integral adjustment cylinder for adjusting the angle between boom 1 and boom 2, and a boom support frame for limiting the folding position of boom 2.

[0025] During unloading, tomatoes are carried and moved horizontally by boom one. The angle between boom two and boom one is adjusted by the overall adjustment mechanism, thereby adjusting the height at which boom two lifts the tomatoes. The angle between boom three and boom two is adjusted by the two- and three-section boom adjustment mechanism, allowing for more options in the throwing angle of boom three. Boom four can change the distance between the throwing point and the frame of the tomato harvester, thereby adjusting the distance between the receiving vehicle and the frame of the tomato harvester to suit receiving vehicles of different sizes. A unloading belt is wound around boom one, boom two, boom three, and boom four, requiring only... A single drive unit can drive boom one, boom two, boom three, and boom four to operate synchronously. The ingenious structure allows the unloading device to be folded during transport by controlling the adjustment mechanisms of the two and three boom sections and the overall adjustment mechanism, reducing the space occupied by the unloading device and thus improving the passability of the tomato harvester during transport. The unloading device has a high degree of freedom and strong controllability, which can meet the needs of different stages of transport and operation. When the unloading device is retracted, it can support boom two and limit the folding position of boom two to prevent boom two from colliding with the vehicle frame.

[0026] Furthermore, it also includes a manual sorting platform mounted on the vehicle frame. The manual sorting platform includes a support frame, a main folding bracket, a secondary folding bracket arranged parallel to the main folding bracket, a hinge pin, a platform step mounted on the support frame, a platform guardrail mounted on the support frame, and a safety door mounted on the platform guardrail. Both the main folding bracket and the secondary folding bracket include a fixed bracket, a rotating bracket, and a pin for hinged connection between the fixed bracket and the rotating bracket. The fixed bracket is mounted on the vehicle frame, and the rotating bracket is hinged to the support frame via the hinge pin. Limiting components are provided on the main folding bracket and / or the secondary folding bracket to restrict the rotation of the rotating bracket or to release the restriction on the rotation of the rotating bracket.

[0027] The support frame serves as the main support, while the walkway platform provides a working space for the operator. Both the main and auxiliary folding supports include a fixed support, a rotating support, and pins for hinged connection between the fixed and rotating supports. When the tomato harvester is working, pushing the main or auxiliary folding support unfolds the entire manual sorting walkway outwards. When the manual sorting walkway is unfolded to the working position, the first folding support is locked and limited by the limiting component, thus providing sufficient working space for the operator. When the tomato harvester needs to transfer or other conditions require the manual sorting walkway to be retracted, the limiting component is first opened, and the support frame is pushed to retract the entire limiting pin. After folding into place, the first folding support is locked and limited by the limiting component. The overall structure is simple and inexpensive, and can complete folding, unfolding, and positioning operations in one operation, saving manpower, material resources, and time costs.

[0028] The present invention has the following beneficial effects:

[0029] In this invention, the tomato harvester has a frame that provides mounting interfaces for other components and positions and assists in fixing them. A conveying and feeding device is located in front of the vine separator, its function being to uniformly feed the vine material to be separated into the separation channel and prevent the vine material from sliding. A vibration generator, vine separator, and roller drive are mounted laterally on the frame along the same axis. The vibration generator generates vibration through rapid alternating motion. One end of the vine separator is connected to the vibration generator, and the other end is connected to the roller drive. The vine separator performs a combined rolling vibration motion under the combined action of the vibration generator and the roller drive. A fruit conveying device is located directly below the separation channel, and a vine conveying device is arranged below and behind the separation channel and above the fruit conveying device. The grid spacing of the vine conveying device is larger than that of the fruit conveying device. In use, the conveying and feeding device feeds the vines into the entrance of the separation channel. After the vines fall into the separation channel, the vibration generator and the roller drive simultaneously drive the vine separator to vibrate while rotating, thus separating the fruit from the vine within the separation channel. The seedlings fall from the separation channel and are collected and transported by the fruit conveyor. The separated seedlings exit from the separation channel and are carried by the seedling conveyor, which screens out any tangled fruits during transport. These screened fruits are also collected and transported by the fruit conveyor, reducing waste and increasing profits. The cleaning roller, a smooth steel cylinder located below the conveying and feeding device, forms a narrow gap with the device. The cleaning roller rotates in the opposite direction to the conveying and feeding device. The material flow contains mulch film and drip irrigation tape. It gets caught in the narrow gap formed by the conveying and feeding device and the cleaning roller. As the conveying and feeding device and the cleaning roller rotate in opposite directions, the mulch film and drip irrigation tape are pulled out of the separation channel. The fruit and vines cannot pass through the narrow gap, thus achieving the purpose of cleaning. It can effectively prevent the mulch film and drip irrigation tape from entering the subsequent working parts, which would cause the rotating parts to get stuck, accelerate the wear of parts, or even force the machine to stop. This reduces downtime and improves the efficiency of tomato harvesting. Its ingenious structure can continuously and efficiently separate fruit and vines, and it is safe, stable, and reliable in operation.

[0030] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0031] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0032] Figure 1 This is a schematic diagram of the structure of a tomato harvester according to a preferred embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the tomato harvester of a preferred embodiment of the present invention from another perspective;

[0034] Figure 3 This is a schematic diagram of the cutter head structure according to a preferred embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of the seedling separating device according to a preferred embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the left and right divider frames according to a preferred embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the structure of the seedling picking device according to a preferred embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the cutting device according to a preferred embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the auxiliary feeding device according to a preferred embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram of the conveying device according to a preferred embodiment of the present invention;

[0041] Figure 10 This is a schematic diagram of the conveyor belt according to a preferred embodiment of the present invention;

[0042] Figure 11 This is a schematic diagram of the structure of the cleaning roller according to a preferred embodiment of the present invention;

[0043] Figure 12 This is a schematic diagram of the structure of the power roller according to a preferred embodiment of the present invention;

[0044] Figure 13 This is a schematic diagram of the structure of the cutter frame according to a preferred embodiment of the present invention;

[0045] Figure 14 This is a schematic diagram of the cutter head connection assembly according to a preferred embodiment of the present invention;

[0046] Figure 15 This is a schematic diagram of the conveyor belt frame according to a preferred embodiment of the present invention;

[0047] Figure 16 This is a schematic diagram of the fruit seedling separation system according to a preferred embodiment of the present invention;

[0048] Figure 17 This is a schematic diagram of the structure of the roller drive device according to a preferred embodiment of the present invention;

[0049] Figure 18 This is a schematic diagram of the structure of the conveying and feeding device according to a preferred embodiment of the present invention;

[0050] Figure 19 This is a schematic diagram of the structure of a vibration generator according to a preferred embodiment of the present invention;

[0051] Figure 20 This is a schematic diagram of the fruit seedling separator according to a preferred embodiment of the present invention;

[0052] Figure 21 This is a schematic diagram of the structure of the roller drive device according to a preferred embodiment of the present invention;

[0053] Figure 22 This is a schematic diagram of the structure of the impurity removal device according to a preferred embodiment of the present invention;

[0054] Figure 23 This is a schematic diagram of the structure of the stripper rod according to a preferred embodiment of the present invention;

[0055] Figure 24 This is a schematic diagram of the separation channel according to a preferred embodiment of the present invention;

[0056] Figure 25 This is a schematic diagram of the fruit conveying device according to a preferred embodiment of the present invention;

[0057] Figure 26 This is a schematic diagram of the structure of the first drive shaft in a preferred embodiment of the present invention;

[0058] Figure 27 This is a schematic diagram of the structure of the seedling conveying device according to a preferred embodiment of the present invention;

[0059] Figure 28 This is a schematic diagram of the structure of the second drive shaft according to a preferred embodiment of the present invention;

[0060] Figure 29 This is a schematic diagram of the structure of the seedling vibrator according to a preferred embodiment of the present invention;

[0061] Figure 30 This is a schematic diagram of the frame structure of a preferred embodiment of the present invention;

[0062] Figure 31 This is a top view of the vehicle frame according to a preferred embodiment of the present invention;

[0063] Figure 32 This is a schematic diagram of the structure of a rotary dust collector according to a preferred embodiment of the present invention;

[0064] Figure 33 This is a side view of a rotary dust removal device according to a preferred embodiment of the present invention;

[0065] Figure 34 This is a front view of a rotary dust removal device according to a preferred embodiment of the present invention;

[0066] Figure 35 This is a schematic diagram of the structure of a dust removal door frame according to a preferred embodiment of the present invention;

[0067] Figure 36 is a schematic diagram of the air intake hood according to a preferred embodiment of the present invention; wherein, Figure 36(a) is a schematic diagram of the structure of the mesh plate; Figure 36(b) is a cross-sectional view along line AA shown in Figure 36(a); Figure 36(c) is an enlarged schematic diagram of region I in Figure 36(b);

[0068] Figure 37 This is a schematic diagram of the structure of the waste discharge pipeline according to a preferred embodiment of the present invention;

[0069] Figure 38 This is a schematic diagram of the dust collector hood drive wheel system according to a preferred embodiment of the present invention;

[0070] Figure 39 This is a schematic diagram of the structure of a dust removal fan according to a preferred embodiment of the present invention;

[0071] Figure 40 This is a schematic diagram of the transition mechanism according to a preferred embodiment of the present invention;

[0072] Figure 41 This is a schematic diagram of the fan drive structure according to a preferred embodiment of the present invention;

[0073] Figure 42 This is a schematic diagram of the structure of the impurity removal fan according to a preferred embodiment of the present invention;

[0074] Figure 43 This is a cross-sectional view of a preferred embodiment of the impurity removal fan of the present invention;

[0075] Figure 44 is a structural schematic diagram of the fan mounting base according to a preferred embodiment of the present invention; wherein, Figure 44(a) is a structural schematic diagram of the mounting plate; Figure 44(b) is a structural schematic diagram of the adjustment plate;

[0076] Figure 45 This is a schematic diagram of the structure of the intermediate air inlet cover of a preferred embodiment of the present invention;

[0077] Figure 46 is a structural schematic diagram of the air outlet grille of a preferred embodiment of the present invention; wherein, Figure 46(a) is a structural schematic diagram of the spacer; Figure 46(b) is a structural schematic diagram of the arc-shaped baffle;

[0078] Figure 47 This is a schematic diagram of the structure of a fan impeller assembly according to a preferred embodiment of the present invention;

[0079] Figure 48 This is a schematic diagram of the structure of a color sorting system according to a preferred embodiment of the present invention;

[0080] Figure 49This is a schematic diagram of the color sorting system of a preferred embodiment of the present invention from another perspective;

[0081] Figure 50 This is a schematic diagram of the structure of the color sorting pre-conveying device according to a preferred embodiment of the present invention;

[0082] Figure 51 This is a schematic diagram of the structure of a primary color sorting device according to a preferred embodiment of the present invention;

[0083] Figure 52 This is a schematic diagram of the structure of the color sorting finger snap device according to a preferred embodiment of the present invention;

[0084] Figure 53 This is a schematic diagram of the suspension device according to a preferred embodiment of the present invention;

[0085] Figure 54 This is a schematic diagram of the structure of the pre-unloading conveying device according to a preferred embodiment of the present invention;

[0086] Figure 55 This is a schematic diagram of the unloading device according to a preferred embodiment of the present invention;

[0087] Figure 56 This is a schematic diagram of the structure of boom one according to a preferred embodiment of the present invention;

[0088] Figure 57 This is a schematic diagram of the structure of boom two according to a preferred embodiment of the present invention;

[0089] Figure 58 This is a schematic diagram of the structure of boom three according to a preferred embodiment of the present invention;

[0090] Figure 59 This is a schematic diagram of the structure of boom four according to a preferred embodiment of the present invention;

[0091] Figure 60 This is a schematic diagram of the structure of the two- or three-section boom adjustment mechanism according to a preferred embodiment of the present invention;

[0092] Figure 61 This is a schematic diagram of the unfolded manual sorting platform according to a preferred embodiment of the present invention;

[0093] Figure 62 This is a schematic diagram of the folded manual sorting platform according to a preferred embodiment of the present invention;

[0094] Figure 63 This is a schematic diagram of the support frame according to a preferred embodiment of the present invention;

[0095] Figure 64 This is a schematic diagram of the main folding bracket according to a preferred embodiment of the present invention;

[0096] Figure 65This is a schematic diagram of the structure of the secondary folding bracket according to a preferred embodiment of the present invention. Detailed Implementation

[0097] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0098] like Figure 1 and Figure 2 As shown, the tomato harvester of this embodiment includes a cutter head 1, a fruit-vine separation system 2, a frame 3, a power system 4, a transverse conveyor system 5, a dust removal fan 6, a color sorting system 7, an unloading device 8, and a manual sorting platform 9. The frame 3 provides interface positions for the installation of other components. The cutter head 1 is installed on the frame 3 and cuts the tomatoes along with the vines, which are then conveyed to the fruit-vine separation system 2 via a conveyor belt. The fruit-vine separation system 2 separates the tomatoes and vines through inertial vibration. The vines are transported from the vine conveyor belt 2-7-1 to the rear of the vehicle and discharged outside. The tomatoes are conveyed to the transverse conveyor system 5 at the rear of the vehicle via the fruit conveyor belt 2-6-1. The fruit-vine separation system 2 is equipped with a dust removal device 2-5, which can remove debris such as mulch film and drip irrigation tape brought in by the cutter head 1. The transverse conveyor system 5 is located at the rear of the vehicle and changes the longitudinal conveying of the tomatoes from the fruit conveyor belt 2-6-1 to transverse conveying, sending them to the color sorting conveyor belt 7-1-2. Debris such as mulch film and vines mixed in with the tomato flow are removed by the transverse conveyor system. The tomatoes are discharged from the vehicle under the combined action of the transverse roller 5 and the impurity removal fan 6; after the pre-sorting conveyor belt 7-1-2 evenly distributes the tomatoes, they are sent to the color sorting belt 7-2-2; the end of the color sorting belt 7-2-2 is equipped with a color sorter 7-2, which can identify unripe fruits, overripe fruits and other substandard fruits in the tomato stream, and use a snap finger 7-2-9-4 to flick out unwanted fruits and debris. The sorted tomatoes enter the pre-unloading conveyor device 7-5; next to the pre-unloading conveyor device 7-5, the sorting staff will screen the tomatoes. After the small amount of debris remaining in the tomatoes is removed, the tomatoes enter the unloading device 8; the unloading belt 8-9 on the unloading device 8 lifts the tomatoes and unloads them from the end of the unloading device 8 into the transfer vehicle, completing the tomato harvesting; the power system 4 provides power for all the actions of the tomato harvester and the movement of the vehicle; the debris removal fan 6 is installed at the rear of the vehicle to help remove debris such as mulch film, stalks, and drip irrigation tape from the tomato flow on the transverse conveying system 5 and at the same time assist the stalk conveyor belt 2-7-1 in removing the stalks from the vehicle.

[0099] like Figure 3As shown, in this embodiment, the cutting platform 1 includes a seedling separating device 1-1, a seedling picking device 1-2, a cutting device 1-3, an auxiliary feeding device 1-4, a conveying device 1-5, a power roller 1-6, a cutting platform lifting cylinder 1-7, and a cutting platform frame 1-8. During harvesting, the seedling separating device 1-1 separates the tomato seedlings that are entangled across the rows, the seedling picking device 1-2 lifts up the roots of the tomato seedlings, and the cutting device 1-3 cuts the seedlings. Under the combined action of the seedling picking device 1-2 and the auxiliary feeding device 1-4, the seedlings are sent to the conveyor belt 1-5, and then further sent to the next working part.

[0100] like Figure 4 As shown, in this embodiment, the seedling separating device 1-1 includes left and right seedling separating frame 1-1-1, left and right depth limiting wheels 1-1-2, left and right depth limiting wheel cylinders 1-1-3, crossbeam 1-1-4, left and right seedling separating rollers 1-1-5, motor 1-1-6, and coupling 1-1-7; the left and right seedling separating frame 1-1-1 and crossbeam 1-1-4 form a gate-like structure, and the left and right seedling separating frame 1-1-1 is connected to the header frame 1-8; the left and right seedling separating rollers 1-1-5 are respectively installed at the front end of the left and right seedling separating frame 1-1-1; the left and right depth limiting wheels 1-1-2 are respectively installed inside the left and right seedling separating frame 1-1-1; the lower end of the left and right depth limiting wheel cylinder 1-1-3 is respectively connected to the left and right depth limiting wheels 1-1-2, and the upper end is respectively connected to the left and right seedling separating frame 1-1-1; during harvesting, the distance between the left and right seedling separating rollers 1-1-5 can be adjusted according to the tomato planting width. To ensure accurate harvesting, the left and right separating rollers 1-1-5 have spiral guide strips with different directions of rotation. The lower forward-rotating guide strip lifts the tomato vines that are close to the ground when the left and right separating rollers 1-1-5 rotate, while the upper reverse-rotating guide strip presses the lifted vines down and guides them into the inside of the cutter head 1. Due to the muddy and wet harvesting environment, there is a coupling 1-1-7 between the left and right separating rollers 1-1-5 and the motor 1-1-6 to effectively prevent 1-1-6 from being directly connected to the left and right separating rollers 1-1-5, which would make maintenance difficult if rusted and stuck. During harvesting, the left and right depth limiting wheels 1-1-2 travel within the tomato furrows. Each depth limiting wheel 1-1-2 has a left and right depth limiting wheel cylinder 1-1-3 to control the height of the left and right depth limiting wheels 1-1-2. The driver observes the height difference between the left and right sides of the cutter head 1 and the ground, and adjusts the extension of the left and right depth limiting wheel cylinders 1-1-3 to adjust the height of the cutter head 1 relative to the ground. Figure 5 As shown, there is a set of parallelogram structures inside the left and right seed divider frame 1-1-1. When the left and right seed dividing rollers 1-1-5 encounter obstacles, the rollers 1-1-5 will automatically lift up to prevent them from being damaged.

[0101] like Figure 6As shown, in this embodiment, the seedling picking device 1-2 includes a seedling picking motor 1-2-1, a coupling 1-2-2, a seedling picking shaft 1-2-3, an eccentric sleeve 1-2-4, a seedling picking shaft protective sleeve 1-2-5, a front seedling picking fork 1-2-6, a rear seedling picking fork 1-2-7, and a seedling picking rod 1-2-8; the seedling picking motor 1-2-1, the coupling 1-2-2, and the seedling picking shaft 1-2-3 are coaxially mounted; the front seedling picking fork 1-2-6 and the rear seedling picking fork 1-2-7... The rear ends of the seedling-picking fork 1-2-7 are respectively mounted on the left and right ends of the seedling-picking shaft 1-2-3 via two sets of eccentric sleeves 1-2-4. The front end is hinged to the cutter frame 1-8 via the seedling-picking hanger 1-2-8. The phase angle difference between the eccentric sleeve 1-2-4 connected to the front seedling-picking fork 1-2-6 and the eccentric sleeve 1-2-4 connected to the rear seedling-picking fork 1-2-7 is 180°. During movement, the front and rear seedling-picking forks 1-2-6 and the rear seedling-picking fork 1-2-7... -7 Alternating motions lift materials from the ground upwards while simultaneously conveying them backwards; the front seedling-lifting fork 1-2-6 includes a seedling-lifting frame 1-2-6-1 and seedling-lifting rods 1-2-6-2 arranged in a comb-like pattern on the seedling-lifting frame 1-2-6-1. The seedling-lifting rods 1-2-6-2 are assembled and installed on the seedling-lifting frame 1-2-6-1 by clamping plates and bolts; the structure of the rear seedling-lifting fork 1-2-7 is the same as that of the front seedling-lifting fork 1-2-6, the front seedling... Each of the seedling forks 1-2-6 and 1-2-7 has an arc-shaped seedling lifting rod on the left and right. During operation, the arc-shaped seedling lifting rod hooks onto the left and right divider frames 1-1-1 to prevent debris from entering the harvesting area. If damaged, the seedling lifting rod 1-2-6-2 can be directly replaced, which is convenient and cost-effective. The seedling lifting shaft protective sleeve 1-2-5 is fitted onto the seedling lifting shaft 1-2-3 to prevent tomato seedlings from getting tangled on the seedling lifting shaft 1-2-3 during operation.

[0102] like Figure 7As shown, in this embodiment, the cutting device 1-3 includes a cutting motor mounting base 1-3-1, a motor 1-3-2, a crank 1-3-3, a first pull rod 1-3-4, a second pull rod 1-3-5, a right cutting arm 1-3-6, a left cutting arm 1-3-7, a cutting blade connecting plate 1-3-8, and a cutting blade 1-3-9. The motor 1-3-2 is connected to the crank 1-3-3, and the shaft of the motor 1-3-2 coincides with the central axis of the crank 1-3-3. One end of the first pull rod 1-3-4 is connected to the crank 1-3-3, and the other end is connected to the left cutting arm 1-3-7. One end of the second pull rod 1-3-5 is connected to the right cutting arm 1-3-6, and the other end is connected to the left cutting arm 1-3-7. Both ends of the cutting blade 1-3-9 are connected to the left cutting arm 1-3-7 and the right cutting arm 1-3-6 respectively through the cutting blade connecting plate 1-3-8. The left cutter arm 1-3-7 and the right cutter arm 1-3-6 are hinged to the header frame 1-8. During operation, the rotation of the motor 1-3-2 causes the rear ends of the left cutter arm 1-3-7 and the right cutter arm 1-3-6 to swing through the crank 1-3-3 and the pull rod 1-3-4 and pull rod 2-3-5. The reversal at the hinge point between the left cutter arm 1-3-7 and the right cutter arm 1-3-6 and the header frame 1-8 further drives the cutter 1-3-9 to swing left and right. The cutter 1-3-9 is located below and behind the front seedling picking fork 1-2-6 and the rear seedling picking fork 1-2-7. During operation, it swings left and right above the tail rod of the seedling picking fork. The tail rod of the seedling picking fork can protect the cutter 1-3-9 from hitting hard objects on the ground and causing damage.

[0103] like Figure 8 As shown, in this embodiment, the auxiliary feeding device 1-4 includes a motor 1-4-1, a coupling 1-4-2, a drive shaft 1-4-3, a feeding belt 1-4-4, a driven shaft 1-4-5, a hydraulic cylinder 1-4-6, a support roller 1-4-7, and a frame 1-4-8. The motor 1-4-1, coupling 1-4-2, and drive shaft 1-4-3 are coaxially mounted; drive shaft 1-4-3 and driven shaft 1-4-5 are mounted at both ends of the frame 1-4-8; the feeding belt 1-4-4 is circumferentially mounted on drive shaft 1-4-3 and driven shaft 1-4-5, and its direction is reversed via the support roller 1-4-7; the hydraulic cylinder 1-4-6 can adjust the position of the feeding belt 1-4-4 at the driven shaft 1-4-5 relative to the front seedling picking fork 1-2-6 and the rear seedling picking fork 1-2-7. The auxiliary feeding device 1-4 is connected to a waist-shaped hole 1-4-6-1. When the material feeding amount suddenly increases, the waist-shaped hole 1-4-6-1 can adaptively adjust the distance between the auxiliary feeding device 1-4 and the front seedling picking fork 1-2-6 and the rear seedling picking fork 1-2-7 to prevent material blockage. When material blockage occurs, the feeding belt 1-4-4 can reverse together with the conveyor belt 1-5-5 to quickly clear the blockage. The feeding belt 1-4-4 has rubber fingers 1-4-4-1, which can improve the auxiliary feeding efficiency without damaging the fruit.

[0104] like Figure 9 As shown, in this embodiment, the conveying device 1-5 includes a motor 1-5-1, a reduction gearbox 1-5-2, a drive shaft 1-5-3, a sprocket 1-5-4, a conveyor belt 1-5-5, a support roller 1-5-6, and a cleaning roller 1-5-7; the motor 1-5-1 is connected to the drive shaft 1-5-3 through the reduction gearbox 1-5-2, and the sprocket 1-5-4 is mounted on the drive shaft 1-5-3; the motor 1-5-1 drives the sprocket 1-5-4 to rotate the conveyor belt 1-5-5.

[0105] like Figure 10 As shown, in this embodiment, the conveyor belt 1-5-5 includes a belt 1-5-5-1, connecting rods 1-5-5-2, and rivets 1-5-5-3. The connecting rods 1-5-5-2 are equidistantly riveted to the belt 1-5-5-1 by the rivets 1-5-5-3. The spacing of the connecting rods 1-5-5-2 is smaller than the diameter of the tomato to prevent the tomatoes from falling. Every few connecting rods 1-5-5-2, one has rubber teeth 1-5-5-4 to prevent the tomato vines from sliding relative to the conveyor belt 1-5-5. The conveyor belt 1-5-5 is supported by several rollers 1-5-6 installed on the cutter 1, which can improve the load-bearing capacity of the conveyor belt 1-5-5. The conveyor belt 1-5-5 is equipped with cleaning rollers 1-5-7, which are installed on the return section of the conveyor belt 1-5-5. This is a passive cleaning method, and its power comes from the rotation of the conveyor belt 1-5-5.

[0106] like Figure 11 As shown, in this embodiment, the cleaning roller 1-5-7 includes a sprocket 1-5-7-1, a metal rod 1-5-7-2, a bearing 1-5-7-3, a tension spring 1-5-7-4, and a mounting plate 1-5-7-5. As the conveyor belt 1-5-5 rotates, the sprocket 1-5-7-1 and the connecting rod 1-5-5-2 mesh and drive each other. The metal rod 1-5-7-2 can push out the soil and debris between the connecting rods 1-5-5-2. During harvesting, the front vine-picking fork 1-2-6 and the rear vine-picking fork 1-2-7 deliver the tomato vines to the conveyor belt 1-5-5. The conveyor belt 1-5-5 transports the vines upward to the next component.

[0107] like Figure 12As shown, in this embodiment, the power roller 1-6 includes a motor 1-6-1, a gearbox 1-6-2, a drive shaft 1-6-3, a roller 1-6-4, a mounting bracket 1-6-5, a mud guard 1-6-6, and a hydraulic cylinder 1-6-7. Motor 1-6-1 is mounted on mounting bracket 1-6-5 via gearbox 1-6-2 and drive shaft 1-6-3; roller 1-6-4 is mounted on drive shaft 1-6-3; there is a hydraulic cylinder 1-6-7 at each end of mounting bracket 1-6-5, which can adjust the position of drive shaft 1-6-3 relative to header frame 1-8; a mud-proof sleeve 1-6-6 is fitted on drive shaft 1-6-3 to prevent the drive shaft 1-6-3 from being covered with mulch film and mud, etc., which affect the rotation of drive shaft 1-6-3; during harvesting, the power roller 1-6 supports the header 1 to walk on the ridge, and the overall vehicle speed signal is transmitted to motor 1-6-1 to control the speed of power roller 1-6 to be consistent with the overall vehicle speed.

[0108] like Figure 3 As shown, in this embodiment, there is one cutting platform lifting cylinder 1-7 on each side, one end of which is connected to the vehicle frame 3 and the other end is connected to the cutting platform frame 1-8. During harvesting, the cutting platform lifting cylinder 1-7 extends to lower the cutting platform 1, and the power roller 1-6 contacts the ground. During transportation, the cutting platform lifting cylinder 1-7 retracts to lift the cutting platform 1, increasing the approach angle of the whole vehicle and facilitating transportation. When encountering ground with low bearing capacity during operation, the lifting force of the cutting platform lifting cylinder 1-7 can be increased to reduce the ground pressure of the power roller 1-6 and prevent the cutting platform 1 from sinking into the soil.

[0109] like Figure 13 , Figure 14 and Figure 15As shown, in this embodiment, the header frame 1-8 includes a conveyor belt frame 1-8-1 and a header connection assembly 1-8-2, which is hinged to the rear of the conveyor belt frame 1-8-1. The header connection assembly 1-8-2 includes a header connecting plate 1-8-2-1, a bearing 1-8-2-2, a connecting shaft 1-8-2-3, a sliding bearing 1-8-2-4, a connecting crossbeam 1-8-2-5, a slider 1-8-2-6, a locking nut 1-8-2-7, and a cotter pin 1-8-2-8. 8; The header connecting plate 1-8-2-1 connects the header connecting assembly 1-8-2 to the frame 3, with a bearing 1-8-2-2 installed in the middle, connecting to the connecting shaft 1-8-2-3 via the bearing 1-8-2-2; the slider 1-8-2-6 is mounted on the connecting shaft 1-8-2-3 and axially fixed by the lock nut 1-8-2-7 and the cotter pin 1-8-2-8; the connecting shaft 1-8-2-3 and the connecting crossbeam 1-8-2-5 are welded together, with a hole in the middle for installing a sliding bearing, for use with the conveyor belt frame. The frame 1-8-1 is hinged; the slider guide plate 1-8-1-1 is installed on the left and right sides behind the conveyor belt frame 1-8-1; the limiting plate 1-8-1-2 is installed above the slider guide plate 1-8-1-1; the hinge shaft 1-8-1-3 is welded to the cutter beam 1-8-1-4; the hinge shaft 1-8-1-3 is connected to the cutter assembly 1-8-2; they can slide relative to each other through the sliding bearing 1-8-2-4; the locking nut 1-8-2-4 provides a certain preload to the cutter 1, allowing the sliders on both sides to slide relative to each other. 1-8-2-6 is in close contact with the slider guide plate 1-8-1-1, allowing for relative sliding or rolling. The left and right depth limiting wheels 1-1-2 of the cutting platform have maximum angle protection. When one side of the cutting platform 1 rises, the slider 1-8-2-6 is blocked by the limiting plate 1-8-1-2, preventing the cutting platform 1 from further adjusting its left and right sway angle. The frame 3 has an automatic leveling function. The hinged structure between the cutting platform frame 1-8-1 and the cutting platform connection assembly 1-8-2 ensures that the cutting platform 1 does not adjust its sway angle with the frame 3, but remains parallel to the ground. When the furrow height changes, the driver visually judges the relative angle between the crossbeam 1-1-4 and the ground, and adjusts the left and right depth limiting wheel cylinders 1-1-3 to keep the cutting platform 1 level with the ground, further ensuring the cutting effect of the cutter 1-3-9.

[0110] like Figure 16 and Figure 17As shown, in this embodiment, the fruit and vine separation system 2 includes a conveying and feeding device 2-1, a vibration generator 2-2, a fruit and vine separator 2-3, a roller drive device 2-4, a cleaning device 2-5, a fruit conveying device 2-6, and a vine conveying device 2-7. The conveying and feeding device 2-1 is located in front of the fruit and vine separator 2-3, and its function is to uniformly feed the material to be separated into the fruit and vine separator 2-3 and prevent the material from sliding relative to each other. The vibration generator 2-2, the fruit and vine separator 2-3, and the roller drive device 2-4 are mounted laterally on the frame 3 along the same axis. The vibration generator 2-2 generates vibration through rapid alternating motion. One end of the separating roller 2-3-1 is connected to the vibration frame 2-2-1, and the other end is connected to the motor 2-4-5 through a flexible coupling 2-4-4. The vibration generator 2-2 and motor 2-4-5 work together to perform a combined rotation and vibration motion. The impurity removal device 2-5 removes impurities such as soil clods, plastic film, and drip irrigation tape that enter with the material, reducing the amount of impurities entering the fruit and seedling separator 2-3. The fruit conveying device 2-6 is located below the fruit and seedling separator 2-3, and the seedling conveying device 2-7 is arranged below and behind the fruit and seedling separator 2-3 and above the fruit conveying device 2-6. After the fruit and seedling are separated, the fruit falls onto the fruit conveying device 2-6, and the seedling falls onto the seedling conveying device 2-7. The spacing between the connecting rods of the seedling conveyor belt 2-7-1 is larger than the spacing between the connecting rods of the fruit conveyor belt 2-6-1. A small amount of fruit mixed with the seedling falls onto the fruit conveyor belt 2-6-1 below as the seedling conveyor belt 2-7-1 shakes during the conveying process.

[0111] like Figure 18 As shown, in this embodiment, the conveying and feeding device 2-1 includes a feeding belt 2-1-1, a drive shaft 2-1-2, a drive motor 2-1-3, a motor mounting plate 2-1-4, a steering wheel 2-1-5, a support roller 2-1-6, and a seated bearing 2-1-7. The feeding belt 2-1-1 is equipped with a reverse hook, which serves two purposes: firstly, to prevent the material from sliding relative to the feeding belt 2-1-1 and affecting the feeding effect; and secondly, to prevent the material from being pulled back after entering the separating roller 2-3-1 due to poor detachment. The drive shaft 2-1-2 has a seated bearing 2-1-7 at each end, fixing the conveying and feeding device 2-1 to the frame 3.

[0112] like Figure 19As shown, in this embodiment, the vibration generator 2-2 includes a vibration frame 2-2-1, an eccentric block 2-2-2, a central pulley 2-2-3, a first planetary pulley 2-2-4, a second planetary pulley 2-2-5, a first belt 2-2-6, a second belt 2-2-7, a central shaft 2-2-8, a planetary shaft 2-2-9, a motor pulley 2-2-10, a motor belt 2-2-11, a vibration motor 2-2-12, a vibration motor mounting base 2-2-13, a tension wheel 2-2-14, a tension wheel seat 2-2-15, and a belt bearing 2-2-16. The first planetary pulley 2-2-4 is a series double pulley, and the two sets of second planetary pulleys 2-2-5 are single pulleys. All planetary pulleys have the same module and number of teeth. The central pulley 2-2-3 is connected to the first planetary pulley 2-2-4 via the first belt 2-2-6. The first planetary pulley 2-2-4 and the two sets of second planetary pulleys 2-2-5 are arranged in an equilateral triangle and connected via the second belt 2-2-7. The central shaft 2-2-8 rotates relative to the central pulley 2-2-3. The planetary shaft 2-2-9 rotates relative to the vibration frame 2-2-1. The mounting holes are rotatable. Eccentric blocks 2-2-2 are mounted on the corresponding planetary shafts 2-2-9 along with the first planetary pulley 2-2-4 and the second planetary pulley 2-2-5. Eccentric blocks 2-2-2 rotate in the same direction and at the same speed as the first planetary pulley 2-2-4 and the second planetary pulley 2-2-5. When the three eccentric blocks 2-2-2 are installed, their shape and center of gravity are rotationally symmetrical relative to the axis of the central shaft 2-2-8. Two sets of tensioning wheels 2-2-14 are used to adjust the tension of the first belt 2-2-6 and the second belt 2-2-7, respectively. The bearing 2-2-16 is fixed to the frame 3, and the central shaft 2-2-8 is fitted with the inner hole of the bearing 2-2-16.

[0113] like Figure 19As shown in this embodiment, the vibrating frame 2-2-1 has three positioning holes 2-2-1-1, which are symmetrically distributed circumferentially relative to the rotation center axis of the vibrating frame 2-2-1. Three eccentric blocks 2-2-2, corresponding to the positions of the positioning holes, also have a threaded hole. When installing or replacing the first belt 2-2-6 and the second belt 2-2-7, the eccentric blocks 2-2-2 are fixed with bolts. After the first belt 2-2-6 and the second belt 2-2-7 are installed or replaced, the bolts are removed. The positioning requirement of the three eccentric blocks 2-2-2 is that they are evenly distributed circumferentially along the rotation center axis of the vibrating frame 2-2-1. This structure helps the eccentric blocks 2-2-2 to be positioned quickly, saving time and improving positioning accuracy. The two sets of tension wheel seats 2-2-15 have arc-shaped elongated holes, which can be slid left and right along the tension bolts to adjust the position of the tension wheels 2-2-14, further adjusting the tension. After the first belt 2-2-6 and the second belt 2-2-7 are installed, slide the tension wheel seat 2-2-15 left and right, adjust the tension of the tension wheel 2-2-14, and then fix the tension bolt. This structure is easy to operate and highly reliable. The vibration motor mounting seat 2-2-13 is hinged to the frame 3. There is an adjusting screw 2-2-13-1 at the bottom of the vibration motor mounting seat 2-2-13. The end of the screw rests on the frame 3. The position of the vibration motor mounting seat 2-2-13 is adjusted by adjusting the extension of the screw, thereby achieving the tension of the motor belt 2-2-11. This mechanism is simple in structure, easy to operate, and highly reliable.

[0114] like Figure 20 As shown, in this embodiment, the seedling separator 2-3 includes a separating roller 2-3-1, a vibrating rod 2-3-2, a dirt-proof iron hoop 2-3-3, rubber blocks 2-3-4, and a fixing plate 2-3-5. The separating roller 2-3-1 is a structural component, machined by welding. Several annular mounting plates are distributed on the separating roller 2-3-1, and the mounting plates have several bolt mounting holes. The rubber blocks 2-3-4 have positioning grooves, and are arranged in groups of two. The vibrating rod 2-3-2 is placed in the positioning grooves of two rubber blocks 2-3-4. The rubber blocks 2-3-4 are placed on one side of the annular mounting plate, and a fixed plate 2-3-5 is placed on the other side. The fixing plate 2-3-5 is secured with the rubber block 2-3-4 group, the annular mounting plate, and the fixing plate 2-3-5 by bolts. A dirt-proof iron hoop 2-3-3 is installed between two adjacent annular mounting plates to prevent debris such as mulch film and drip irrigation tape from getting tangled between the annular mounting plates, thus reducing cleaning difficulty. The dirt-proof iron hoop 2-3-3 is a strip structure with guide grooves at both ends. There is a nut in the inner guide groove and an elongated hole in the outer guide groove for adjusting the tightness of the dirt-proof iron hoop. When in use, it is wrapped around the annular mounting plate and tightened, and the dirt-proof iron hoop 2-3-3 is tightened by screwing the bolt into the nut.

[0115] like Figure 21As shown, in this embodiment, the roller drive device 2-4 includes a drive motor mounting base 2-4-1, a bearing with a seat 2-4-2, a bushing 2-4-3, a flexible coupling 2-4-4, and a motor 2-4-5. The bearing with a seat 2-4-2 and the motor mounting base 2-4-1 are respectively mounted on the frame 3. One end of the flexible coupling 2-4-4 is connected to the shaft of the separating roller 2-3-1, and the other end is connected to the motor 2-4-5. The flange of the motor 2-4-5 is mounted on the motor mounting base 2-4-1. Under the action of the vibration generator 2-2, the separating roller 2-3-1 undergoes alternating vibration. The function of the flexible coupling 2-4-4 is to eliminate the amplitude of the alternating vibration and prevent damage to the motor 2-4-5. The motor 2-4-5 rotates at a uniform speed, forming a composite motion with the alternating vibration generated by the vibration generator 2-2, causing the fruit and seedling separation system 2 to rotate simultaneously with the alternating vibration, thereby achieving continuous separation of the material from the fruit and seedlings.

[0116] like Figure 22 , Figure 23 and Figure 24As shown, in this embodiment, the impurity removal device 2-5 includes a stripping rod 2-5-1, a long impurity-removing steel bar 2-5-2, a short impurity-removing steel bar 2-5-3, an impurity-removing roller 2-5-4, an impurity-removing motor 2-5-5, a motor mounting plate 2-5-6, and a coupling 2-5-7. Several sets of stripping rods 2-5-1 are spaced between the vibrating bars 2-3-2, partially surrounding the outside of the separating roller 2-3-1, and both ends are fixed to the frame 3. The front end of each stripping rod 2-5-1 has a plate-like structure with the ridges facing the feeding direction. This not only prevents impurities from entering the separating roller 2-3-1 but also serves as a material diversion and guiding function, ensuring that the material is evenly distributed between each set of vibrating bars 2-3-2. The stripping rods 2-5-1 are then... The end is a cylindrical structure with a diameter larger than the width of the front plate-like structure. This effectively blocks the separated seedling stems while reducing the probability of the stems being cut and preventing them from rolling back into the separating roller 2-3-1 after being cut. Long cleaning steel bars 2-5-2 and short cleaning steel bars 2-5-3 are alternately distributed and located below the unloading rod 2-5-1. A separation channel 2-8 is formed between the unloading rod 2-5-1 and the long and short cleaning steel bars 2-5-2 and 2-5-3. The vibrating rod 2-3-2 completes the separation of the material from the seedling within the separation channel 2-8. One end of the long and short cleaning steel bars 2-5-2 and 2-5-3 is suspended, providing elasticity and allowing for a larger feed volume. The suspended end has a lower pressure. When the amount of material fed in is large, the separation channel 2-8 is enlarged; when the amount of material fed in is small, the downward pressure at the suspended end is small, and the separation channel 2-8 is reduced. The size of the separation channel 2-8 is adjusted by using long cleaning steel bars 2-5-2 and short cleaning steel bars 2-5-3 to keep the material density within the separation channel 2-8 basically consistent, facilitating separation. When the amount of material to be separated is large, the short cleaning steel bars 2-5-3 are removed to increase the spacing between the cleaning steel bars 2-5-2, making it easier for the fruit to pass through. When the amount of material to be separated is small, the short cleaning steel bars 2-5-3 are reinstalled to increase the force on the front section of the long cleaning steel bars 2-5-2 and short cleaning steel bars 2-5-3, maintaining the material density, facilitating the separation of fruit vines, and reducing the fruit breakage rate. Roller 2-5-4, located below the conveying and feeding device 2-1, is a smooth cylindrical tube that forms a narrow gap with the feeding belt 2-1-1. This gap can only accommodate objects such as plastic film and drip irrigation tape, while fruits and seedlings cannot pass through. The gap between the cleaning roller 2-5-4 and the long cleaning steel bar 2-5-2 and short cleaning steel bar 2-5-3 does not allow plastic film or drip irrigation tape to pass through. The rotation direction of the cleaning roller 2-5-4 is opposite to that of the feeding belt 2-1-1. Under the combined action of the cleaning roller 2-5-4 and the feeding belt 2-1-1, the plastic film, drip irrigation tape, etc., move through the narrow gap toward the front of the frame 3, thereby throwing the plastic film and drip irrigation tape out of the separation channel 2-8 and achieving the purpose of cleaning.The cleaning motor 2-5-5 is fixedly connected to the motor mounting plate 2-5-6. The cleaning motor 2-5-5 is connected to the cleaning roller 2-5-4 via a coupling 2-5-7. The motor mounting plate 2-5-6 has an elongated hole that engages with the limiting shaft of the frame 3. When the cleaning motor 2-5-5 rotates, it drives the cleaning roller 2-5-4 to rotate, while the cleaning motor itself remains stationary due to the limiting shaft, achieving a floating installation and preventing the cleaning motor 2-5-5 from over-positioning.

[0117] The inlet size of separation channel 2-8 is larger than its outlet size. The inlet of separation channel 2-8 is for tomato vines and fruits, and the outlet is for tomato stems. This structural design prevents material from clogging at the inlet of separation channel 2-8, ensuring smooth material flow. It also prevents the tomato fruits from being crushed. Optionally, a narrowing opening is provided near the outlet inside separation channel 2-8 to prolong the time the tomato stems spend in the separation channel, thereby increasing the time the tomato vines and fruits are in the separation channel and increasing the time the tomato fruits are subjected to vibration, thus improving the vine-fruit separation effect.

[0118] like Figure 25 and Figure 26 As shown, in this embodiment, the fruit conveying device 2-6 includes a fruit conveyor belt 2-6-1, a first drive shaft 2-6-2, a first drive wheel 2-6-3, a first tensioning sleeve 2-6-4, a first conveying motor 2-6-5, a first gearbox 2-6-6, a first motor mounting plate 2-6-7, a first bearing 2-6-8, a cleaning roller 2-6-9, a first steering wheel 2-6-10, and a first support roller 2-6-11. The fruit conveyor belt 2-6-1 is annular and includes side belts, a middle belt, and connecting rods. The connecting rods are riveted to the side belts and the middle belt at equal intervals. The first conveying motor 2-6-5 is mounted on the gearbox 2-6-6, and the first gearbox 2-6-6 is mounted on the motor mounting plate 2-6-7. The first gearbox 2-6-6 is connected to the first drive shaft 2-6-2, and the first drive wheel 2-6-3 is connected via... The first tensioning sleeve 2-6-4 is installed on the first drive shaft 2-6-2. The first drive shaft 2-6-2 is equipped with first seated bearings 2-6-8 at both ends and is fixed on the frame 3. The first tensioning sleeve 2-6-4 is used to fix the first drive wheel 2-6-3 and the first drive shaft 2-6-2. It is convenient to install and adjust the position of the first drive wheel 2-6-3. The requirements for the straightness, roundness and surface finish of the first drive shaft 2-6-2 are not high. The first drive shaft 2-6-2 is easy to process and saves costs. The first support roller 2-6-11 and the first steering wheel 2-6-10 are installed on the frame 3 and provide support and steering for the conveyor belt. The cleaning roller 2-6-9 has the same structure as the cleaning roller 1-5-7. The cleaning roller 2-6-9 is installed on the return section of the fruit conveyor belt 2-6-1 and can remove debris between the connecting rods of the fruit conveyor belt 2-6-1.

[0119] like Figure 27 and Figure 28 As shown, in this embodiment, the seedling conveying device 2-7 includes a seedling conveyor belt 2-7-1, a second drive wheel 2-7-2, a second drive shaft 2-7-3, a second tensioning sleeve 2-7-4, a second conveying motor 2-7-5, a second gearbox 2-7-6, a second motor mounting plate 2-7-7, a second bearing with a seat 2-7-8, a seedling vibrator 2-7-9, a second steering wheel 2-7-10, and a second support wheel 2-7-11. The structure of the seedling conveyor belt 2-7-1 is similar to that of the fruit conveyor belt 2-6-1, and the installation methods of the second conveying motor 2-7-5, the second gearbox 2-7-6, the second drive shaft 2-7-3, and the second drive wheel 2-7-2 are consistent with the installation methods of the corresponding components of the fruit conveying device 2-6.

[0120] like Figure 29 As shown, in this embodiment, the seedling vibrator 2-7-9 includes a vibrating motor 2-7-9-1, a motor mounting plate 2-7-9-2, a coupling 2-7-9-3, a third drive shaft 2-7-9-4, and vibrating wheels 2-7-9-5. The vibrating wheels 2-7-9-5 are installed on both sides of the third drive shaft 2-7-9-4, respectively located under the left and right belts of the seedling conveyor belt 2-7-1. Each vibrating wheel 2-7-9-5 includes two wheels and a cam. The left and right vibrating wheels 2-7-9-5 are installed with a certain angle difference. When the third drive shaft 2-7-9-4 rotates, the left and right vibrating wheels 2-7-9-5 move up and down against the left and right belts of the seedling conveyor belt 2-7-1, and the movement trajectories of the left and right belts are inconsistent, producing alternating undulating vibrations, shaking off a small amount of fruit mixed in with the seedlings onto the fruit conveyor belt 2-6-1 below.

[0121] like Figure 30 and Figure 31As shown, in this embodiment, the frame 3 includes an upper frame 3-1, a lower frame 3-2, a front axle 3-3, a front axle driveshaft 3-4, tires 3-5, a gearbox 3-6, a motor 3-7, a rear axle driveshaft 3-8, a rear axle 3-9, a first leveling cylinder 3-10, a front axle cylinder support 3-11, and a rear axle cylinder support 3-12. The front axle 3-3 and rear axle 3-9 are mounted on the lower frame 3-2; the front axle cylinder support 3-11 and the rear axle cylinder support 3-12 are mounted on the front axle 3-3 and the rear axle 3-9; one end of the first leveling cylinder 3-10 is mounted on the front axle cylinder support 3-11 and the rear axle cylinder support 3-12, and the other end is mounted on the lower frame 3-2. The frame 3 has an automatic leveling function. During harvesting, the first leveling cylinder 3-10... The angles of the front axle 3-3, rear axle 3-9, and lower frame 3-2 are adjusted in real time according to the ground undulation signal to ensure that the frame 3 is level, further ensuring the stability of material conveying and tomato color sorting. The gearbox 3-6 is installed on the lower frame 3-2, and the motor 3-7 is installed on the gearbox 3-6. After the gearbox 3-6 switches between different gears, different speed outputs are achieved. One end of the front axle drive shaft 3-4 and the rear axle drive shaft 3-8 are connected to the gearbox 3-6, and the other end is connected to the front axle 3-3 and the rear axle 3-9. The tires 3-5 are installed on the flanges of the front axle 3-3 and the rear axle 3-9, so that the frame 3 has the functions of four-wheel drive and multiple steering modes, with good off-road capability. Different steering modes can be switched according to actual needs, which is convenient, flexible, and highly adaptable.

[0122] like Figure 32 , Figure 33 and Figure 34 As shown in this embodiment, due to the harsh environment of tomato harvesting and the large amount of debris and dust, in order to ensure the cleanliness of the air intake of the power system 4, this solution installs a rotary dust removal device 4-1 at the air intake end of the power system 4. The rotary dust removal device 4-1 includes a radiator frame 4-1-1, a dust removal door frame 4-1-2, an air intake hood 4-1-3, a debris discharge pipe 4-1-4, a dust removal hood drive wheel system 4-1-5, a dust removal fan 4-1-6, a transition mechanism 4-1-7, a fan drive 4-1-8, an engine 4-1-9, and a radiator 4-1-10. The radiator frame 4-1-1 is the main supporting body of the entire rotary dust removal device 4-1, and the other components are all mounted on the radiator frame 4-1-1.

[0123] like Figure 35As shown, in this embodiment, the dust removal door frame 4-1-2 is hinged to the radiator frame 4-1-1. The dust removal door frame 4-1-2 includes a brush holder 4-1-2-1, a brush 4-1-2-2, a door frame 4-1-2-3, a baffle plate 4-1-2-4, and a cross connector 4-1-2-5. The brush 4-1-2-2 is provided with a slot to engage with the brush holder 4-1-2-1. The brush holder 4-1-2-1 is riveted to the door frame 4-1-2-3 by rivets. The cross connector 4-1-2-5... -1-2-5 is fixed to the door frame 4-1-2-3 with bolts, which strengthens the panel of the door frame 4-1-2-3; the baffle plate 4-1-2-4 is fixed to the cross connector 4-1-2-5 with bolts. The airflow through the air intake hood 4-1-3 will be attenuated on the baffle plate 4-1-2-4, reducing the adhesion of the debris adsorbed on the air intake hood 4-1-3, so that the dust removal fan 4-1-6 can effectively clean the debris adsorbed on the air intake hood 4-1-3.

[0124] As shown in Figure 36, in this embodiment, the air intake shroud 4-1-3 includes a perforated plate 4-1-3-1 and a welding pulley 4-1-3-2. The perforated plate 4-1-3-1 is riveted to the welding pulley 4-1-3-2. The perforated plate 4-1-3-1 has a small aperture, which can effectively prevent debris from being sucked into the surface of the radiator 4-1-10 and causing blockage. The welding pulley 4-1-3-2 is hinged to the cross connector 4-1-2-5. The dust shroud drives the wheel system 4-1-5 to rotate. The brush 4-1-2-2 can effectively clean the debris that falls into the groove of the welding pulley 4-1-3-2.

[0125] like Figure 37 As shown, in this embodiment, the waste discharge pipe 4-1-4 is bolted to the radiator frame 4-1-1 and is located directly in front of the baffle plate 4-1-2-4. The waste discharge pipe 4-1-4 includes a cleaning brush 4-1-4-1, a cleaning cover plate 4-1-4-2, a waste discharge trough 4-1-4-3, and a dust removal hose 4-1-4-4. The cleaning brush 4-1-4-1 is connected to the waste discharge trough 4-1-4-3 by bolts. When the air intake shroud 4-1-3 rotates, the brush... Remove debris from the air intake hood 4-1-3; the cleaning cover 4-1-4-2 is connected to the waste discharge trough 4-1-4-3 by bolts. When the impurities are large, the cleaning cover 4-1-4-2 can be opened to clean the waste discharge trough 4-1-4-3; the dust removal hose 4-1-4-4 is installed at the end of the waste discharge trough 4-1-4-3, and the other end is connected to the dust removal fan 4-1-6. When the dust removal fan 4-1-6 is working, it sucks out the impurities in the waste discharge trough 4-1-4-3.

[0126] like Figure 38As shown, in this embodiment, the dust hood drive wheel system 4-1-5 includes a tension wheel 4-1-5-1, a tension spring 4-1-5-2, an air intake hood drive wheel 4-1-5-3, an air intake hood idler wheel 4-1-5-4, and an air intake hood belt 4-1-5-5. The air intake hood drive wheel 4-1-5-3 drives the tension wheel 4-1-5-1, the air intake hood idler wheel 4-1-5-4, and the air intake hood 4-1-3 to rotate via the air intake hood belt 4-1-5-5. The tension of the air intake hood belt 4-1-5-5 can be adjusted by the tension spring 4-1-5-2.

[0127] like Figure 39 As shown, in this embodiment, the dust removal fan 4-1-6 is a centrifugal fan, which is bolted to the radiator frame 4-1-1. The dust removal fan 4-1-6 includes a fan pulley 4-1-6-1, a fan shaft 4-1-6-2, a left fan housing 4-1-6-3, a fan impeller 4-1-6-4, and a right fan housing 4-1-6-5. The cleaning brush 4-1-4-1 cleans the impurities on the air inlet hood 4-1-3 and puts them into the impurity discharge groove 4-1-4-3. The air inlet of the dust removal fan 4-1-6 is connected to the dust removal hose 4-1-4-4, which sucks out the impurities in the impurity discharge groove 4-1-4-3, thereby achieving the purpose of cleaning the air inlet hood 4-1-3.

[0128] like Figure 40 As shown, in this embodiment, the transition mechanism 4-1-7 is bolted to the radiator frame 4-1-1. The transition mechanism 4-1-7 includes a mechanism frame 4-1-7-1, a transition shaft 4-1-7-2, and a transition mechanism drive wheel 4-1-7-3. The mechanism frame 4-1-7-1 is bolted to the radiator frame 4-1-1. The transition mechanism drive wheel 4-1-7-3 drives the transition shaft 4-1-7-2 and the air intake shroud drive wheel 4-1-5-3 to rotate, further driving the air intake shroud 4-1-3 to rotate, thereby effectively cleaning the air intake shroud 4-1-3.

[0129] like Figure 41 As shown, in this embodiment, the fan drive 4-1-8 includes a discharge port 4-1-8-1, a fan drive belt 4-1-8-2, an engine power take-off wheel 4-1-8-3, a fan tension wheel 4-1-8-4, and a fan idler wheel 4-1-8-5. The engine 4-1-9 is equipped with an engine power take-off wheel 4-1-8-3, which drives the fan tension wheel 4-1-8-4, the fan idler wheel 4-1-8-5, the transition mechanism drive wheel 4-1-7-3, and the fan pulley 4-1-6-1 to rotate via the fan drive belt 4-1-8-2. The fan pulley 4-1-6-1 drives the dust removal fan 4-1-6 to rotate, sucking out impurities from the discharge trough 4-1-4-3 and discharging them outside the tomato harvester through the discharge port 4-1-8-1.

[0130] like Figure 32As shown, in this embodiment, the radiator 4-1-10 is bolted to the radiator frame 4-1-1, and the engine 4-1-9 fan is an intake type. The medium flowing through the radiator 4-1-10 exchanges heat with the convective air to achieve the purpose of cooling the engine 4-1-9 and the hydraulic system.

[0131] like Figures 42 to 47As shown, in this embodiment, to further remove impurities from the tomatoes, a removal fan 6 is used to remove impurities when the tomatoes pass through the transverse conveying system 5. The removal fan includes a fan housing 6-1, a fan mounting base 6-2, an adjusting rod 6-3, a left air inlet cover 6-4, a middle air inlet cover 6-5, a right air inlet cover 6-6, an air inlet arc plate 6-7, an air outlet grid 6-8, and a fan impeller assembly 6-9. The outer edge of the fan housing 6-1 is in the shape of an Archimedean spiral. The fan mounting base 6-2 includes a mounting plate 6-2-1 and an adjusting plate 6-2-2. The adjusting plate 6-2-2 is provided with a sliding groove, and the fan mounting base 6-2 is fixed to the fan housing 6-1 with bolts through the sliding groove. The mounting plate 6-2-1 is provided with mounting holes, and the fan housing 6-1 is fixed to the fan housing 6-1 with screws. The bolt is connected to the frame 3 through the mounting holes. By adjusting the different mounting holes and their relative positions to the slide groove of the fan housing 6-1, the height of the fan outlet relative to the frame 3 can be adjusted. The adjusting rod 6-3 is provided with hinge holes and adjustment holes. It is fixed to the fan housing 6-1 with bolts. The adjusting rod 6-3 is fixed to the frame 3 with bolts. The angle of the fan outlet can be adjusted by changing the installation position of the adjustment holes. The air inlet of the impurity removal fan 6 includes a left air inlet cover 6-4, a middle air inlet cover 6-5, a right air inlet cover 6-6, and an air inlet arc plate 6-7. The right air inlet cover 6-6, the middle air inlet cover 6-5, the left air inlet cover 6-4, and the air inlet arc plate 6-7 are all perforated plates, which can not only ensure the air intake, but also effectively prevent impurities from entering the impurity removal fan 6 and damaging the fan impeller 6-9.The intermediate air inlet shroud 6-5 includes an air inlet mesh plate 6-5-1, a flow collector plate 6-5-2, and an arc-shaped surround plate 6-5-3. The flow collector plate 6-5-2 divides the airflow entering through the air inlet mesh plate 6-5-1 and the air inlet arc-shaped surround plate 6-7 into both sides of the fan impeller 6-9-2. The flow collector plate 6-5-2 acts as a flow collector, ensuring that the airflow is evenly distributed across the cross-section of the fan impeller 6-9-2, achieving the required inlet velocity while reducing airflow loss entering the fan impeller 6-9-2; The air vent grille 6-8 includes a grille shaft 6-8-1, a spacer 6-8-2, a grille mounting bracket 6-8-3, an arc-shaped baffle 6-8-4, and a hexagonal shaft fixing plate 6-8-5. The grille mounting bracket 6-8-3 mounts the arc-shaped baffle 6-8-4 via the grille shaft 6-8-1, with each pair of arc-shaped baffles 6-8-4 separated by the spacer 6-8-2. The hexagonal shaft fixing plate 6-8-5 is welded to the grille mounting bracket 6-8-3. The grille shaft 6-8-1 is a hexagonal shaft, and the arc-shaped baffle... 6-8-4 is equipped with hexagonal holes to ensure that the arc-shaped baffle 6-8-4 will not rotate relative to each other after installation. Damaged arc-shaped baffle 6-8-4 can be replaced. The air outlet grille 6-8 is bolted to the air outlet of the fan housing 6-1, effectively blocking falling tomatoes, stones, and drip irrigation tape from entering the fan and causing damage. The fan impeller assembly 6-9 includes a support bearing 6-9-1, a fan impeller 6-9-2, a drive sprocket 6-9-3, and a coupling 6-9-4. 4. The drive motor 6-9-5 and the drive sprocket 6-9-3 are installed on the right side shaft end of the fan impeller 6-9-2. The drive sprocket 6-9-3 is installed on the shaft end of the drive motor 6-9-5. The two drive sprockets 6-9-3 are connected by a coupling 6-9-4. The rotation of the drive motor 6-9-5 drives the fan impeller 6-9-2 to rotate. Support bearings 6-9-1 are installed at both ends of the fan impeller 6-9-2. The fan impeller assembly 6-9 is installed on the fan housing 6-1 by bolts.

[0132] like Figure 48 and Figure 49As shown in this embodiment, during tomato harvesting, a certain proportion of unripe or overripe tomatoes will be mixed with qualified tomatoes. The presence of substandard tomatoes will affect the quality of tomato products. This solution uses a color sorting system 7 to remove substandard tomatoes. The color sorting system 7 includes a pre-sorting conveyor 7-1, a primary color sorting device 7-2, a secondary color sorting device 7-3, a suspension device 7-4, and a pre-unloading conveyor 7-5. The function of the pre-sorting conveyor 7-1 is to receive tomato material from the previous stage and convey it to the primary color sorting device 7-2. The function of the primary color sorting device 7-2 is to sort the tomatoes from the pre-sorting conveyor 7-1 and remove substandard tomatoes. The secondary color sorting device 7-3 is located after the primary color sorting device 7-2 and has the same function as the primary color sorting device 7-2. If the proportion of substandard tomatoes is high, they cannot be completely removed after one color sorting. A secondary color sorting device 7-3 can be used to remove them again. The primary color sorting device 7-2 and the secondary color sorting device 7-3 can be used alone or simultaneously. To ensure the color sorting effect, the color sorting belt 7-2-2 must be in a good horizontal and stable state during operation. Since the ground in the field is uneven, the suspension device 7-4 can ensure that the color sorting belt 7-2-2 remains horizontal. After color sorting, the tomatoes fall onto the pre-unloading conveyor 7-5, are rearranged, and then transported to the unloading device 8 at a uniform speed.

[0133] like Figure 50As shown, in this embodiment, the color sorting pre-conveying device 7-1 includes a color sorting pre-conveying frame 7-1-1, a color sorting pre-conveying belt 7-1-2, a drive shaft assembly 7-1-3, a driven wheel 7-1-4, a support roller 7-1-5, a cleaning roller assembly 7-1-6, a chain drive assembly, and a motor. The motor serves as the power source, fixedly connected to the color sorting pre-conveyor frame 7-1-1, and drives the drive shaft assembly 7-1-3 to rotate via the drive chain transmission assembly. The drive shaft assembly 7-1-3 is fixed to the front side of the color sorting pre-conveyor frame 7-1-1 via a bearing seat. Multiple support rollers 7-1-5 are distributed on the color sorting pre-conveyor frame 7-1-1 at a certain distance and angle. The driven roller 7-1-4 is installed on the rear side of the color sorting pre-conveyor frame 7-1-1, causing the color sorting pre-conveyor belt 7-1-2 to rotate. The color sorting pre-conveyor belt 7-1-2 is distributed on the drive shaft assembly 7-1-3, driven roller 7-1-4, and support rollers 7-1-5 according to their positions. -1-2 conveys tomatoes forward at a certain angle, allowing the tomato material to roll and distribute evenly on the conveyor chain during transport, preventing accumulation on one side and ensuring even distribution when thrown onto the primary color sorting device 7-2, thus improving color sorting accuracy; the cleaning roller assembly 7-1-6 has the same structure as the cleaning roller 1-5-7. The cleaning roller assembly 7-1-6 is hinged below the color sorting pre-conveying frame 7-1-1 and engages with the color sorting pre-conveying chain 7-1-2. It can remove dirt and other impurities adhering to the gaps between the steel bars on the color sorting pre-conveying belt 7-1-2, ensuring the impurity removal function of the gaps between the steel bars on the color sorting pre-conveying chain 7-1-2.

[0134] like Figure 51As shown, in this embodiment, the primary color sorting device 7-2 includes a color sorting device frame 7-2-1, a color sorting belt 7-2-2, a drive roller 7-2-3, a driven roller 7-2-4, a bearing with a seat 7-2-5, a coupling 7-2-6, a motor 7-2-7, a color sorting photoelectric device 7-2-8, a color sorting snap-fin device 7-2-9, and a color sorting mounting frame 7-2-10. One end of the color sorting device frame 7-2-1 is hinged to the pre-sorting conveyor 7-1; the drive roller 7-2-3 is mounted on the rear side of the pre-sorting conveyor frame 7-2-1 via a bearing 7-2-5, and the belt tension can be adjusted by adjusting the mounting position of the bearing 7-2-5; the driven roller 7-2-4 is mounted on the front side of the color sorting device frame 7-2-1; the color sorting belt 7-2-2 is an annular belt, mounted on the drive roller 7-2-3 and the driven roller 7-2-4, receiving tomato material from the pre-sorting conveyor 7-1 and conveying it forward to the position of the driven roller 7-2-4 before throwing it out horizontally; motor 7 -2-7 is the power source, driving the drive roller 7-2-4 to rotate via coupling 7-2-6. The color sorting mounting frame 7-2-10 serves as the mounting bracket for the color sorting photoelectric device 7-2-8 and the color sorting spring device 7-2-9. One end is fixedly connected to the color sorting device frame 7-2-1, and the other end is hinged to the suspension device 7-4. Its mounting hole is an elongated slot, allowing adjustment of its position relative to the color sorting device frame 7-2-1 as needed. The color sorting photoelectric device 7-2-8 is fixedly connected to the color sorting mounting frame 7-2-10. Its function is to identify impurities such as green fruits and clods of soil that fall horizontally from the driven roller 7-2-4 using color recognition, and then provide feedback to the processor. The color sorting spring device 7-2-9 is fixedly connected to the color sorter mounting frame 7-2-10. Its function is to receive instructions from the processor and control the spring's movement to remove impurities such as green fruits and clods of soil from the horizontally falling tomato material, completing the first sorting of the tomato material.

[0135] like Figure 52 As shown, in this embodiment, the color sorting spring device 7-2-9 includes a color sorting spring device mounting frame 7-2-9-1, a spring mounting block 7-2-9-2, a cylinder 7-2-9-3, and a spring 7-2-9-4. One end of the cylinder 7-2-9-3 is hinged to the color sorting spring device mounting frame 7-2-9-1, and the other end is hinged to the spring 7-2-9-4. The spring 7-2-9-4 is fixed to the color sorting spring device mounting frame 7-2-9-1, and the other end is hinged to the spring 7-2-9-4. Driven by the cylinder 7-2-9-3, the spring 7-2-9-4 reciprocates around the hinge point to remove substandard fruits, soil clods, etc. from the tomato material.

[0136] like Figure 48 and Figure 49As shown in this embodiment, one end of the secondary color sorting device 7-3 is hinged to the pre-sorting conveying device 7-1, and the other end is hinged to the suspension device 7-4 pull rod. Its structure is the same as that of the primary color sorting device 7-2. Its function is to perform secondary sorting on tomatoes after primary color sorting, further reduce the impurity rate of tomato fruits, and improve the quality of harvested tomatoes.

[0137] like Figure 53 As shown, in this embodiment, the suspension device 7-4 includes a suspension frame welded 7-4-1, a suspension mounting plate 7-4-2, a suspension shaft welded 7-4-3, a second leveling cylinder 7-4-4, a first-stage color sorting rod 7-4-5, a second-stage color sorting rod 7-4-6, a color sorting connecting frame 7-4-7, a seated bearing 7-4-8, a pin 7-4-9, and a level 7-4-10; one end of the suspension frame welded 7-4-1 is fixedly connected to the tomato harvester frame, and the other end is hinged to the color sorting connecting frame 7-4-7 via the second leveling cylinder 7-4-4; the suspension mounting plate 7-4-2 is fixedly connected to the tomato harvester frame. On the locomotive frame; the suspension axle weld 7-4-3 is mounted on the suspension frame weld 7-4-1 and the suspension mounting plate 7-4-2 via two seated bearings 7-4-8; the primary color sorting rod 7-4-5 and the secondary color sorting rod 7-4-6 are respectively hinged to both ends of the suspension axle weld 7-4-3; there are two color sorting connecting frames 7-4-7, one end of which is fixedly connected to the primary color sorting device 7-2 and the secondary color sorting device 7-3 respectively, and the other end is hinged to the primary color sorting rod 7-4-5 and the secondary color sorting rod 7-4-6 respectively; the level 7-4-10 is on the primary color sorting device 7-2 or the secondary color sorting device 7-3. During operation, the level 7-4-10 transmits the adjustment electrical signal to the control system. The control system converts the adjustment electrical signal into a hydraulic system flow value, controlling the extension of the second leveling cylinder 7-4-4. The extension and retraction of the second leveling cylinder 7-4-4 drives the secondary color sorting device 7-3 to adjust its angle. At the same time, the linkage between the secondary color sorting rod 7-4-6 and the primary color sorting rod 7-4-5 causes the primary color sorting device 7-2 to adjust synchronously, keeping both color sorting devices in a horizontal state and enabling normal operation.

[0138] like Figure 54As shown, in this embodiment, the pre-discharge conveying device 7-5 is installed below the secondary color sorting device 7-3. Its main function is to receive qualified tomatoes after two stages of color sorting and convey them to the unloading device 8. The pre-discharge conveying device 7-5 includes a pre-discharge conveying device frame 7-5-1, a pre-discharge conveyor belt 7-5-2, a drive shaft assembly 7-5-3, a support roller 7-5-4, a driven roller 7-5-5, a chain drive assembly 7-5-6, and a motor 7-5-7. Before unloading, the frame 7-5-1 of the conveying device is fixedly connected to the chassis 3. The motor 7-5-7 drives the drive shaft assembly 7-5-3 to rotate through the chain drive assembly 7-5-6. The conveyor belt 7-5-2 before unloading meshes with the drive shaft assembly 7-5-3 and rotates with the drive shaft assembly 7-5-3, conveying the tomato material falling on it backward. The structure of the conveyor belt 7-5-2 before unloading adopts two belts distributed in parallel and riveted with steel bars in the middle. The spacing between the steel bars is consistent with the sprocket pitch. The spacing between the steel bars also plays a screening function during the tomato conveying process, which can remove the smaller tomatoes and small clods of soil that do not meet the requirements in the tomato material.

[0139] like Figure 55 As shown in this embodiment, during tomato harvesting, a transport vehicle is needed to simultaneously transfer the harvested tomatoes. After being lifted by the unloading device 8, the tomatoes are loaded and unloaded into the transport vehicle. The unloading device 8 needs to have strong controllability, a large degree of freedom, and also needs to be reliable and stable. The unloading device 8 includes boom 1 8-1, boom 2 8-2, boom 3 8-3, boom 4 8-4, hydraulic motor 8-5, two- and three-section boom adjustment mechanism 8-6, wire mesh 8-7, wire mesh support frame 8-8, unloading belt 8-9, overall adjustment cylinder 8-10, and boom support frame 8-11.

[0140] like Figure 56 As shown, in this embodiment, boom 8-1 serves as the bottom support for the entire unloading device 8. Boom 8-1 includes boom 2 hinge support 8-1-1, belt support roller 18-1-2, boom 1 frame 8-1-3, belt scraper 8-1-4, and boom connecting plate 8-1-5. Boom 2 hinge support 8-1-1 is the hinge point of boom 2 8-2. Boom 1 frame 8-1-3 is the support frame of boom 8-1. Belt support roller 8-1-2 is the support device for the first boom belt 8-9. During operation, the unloading belt 8-9 can drive the roller to rotate, reducing wear on the unloading belt 8-9. Belt scraper 8-1-4 is installed on boom 1 frame 8-1-3. During operation, the unloading belt 8-9 can remove some dirt and other contaminants from the belt, preventing the roller from jamming and causing belt wear. Boom connecting plate 8-1-5 can fix boom 8-1 to the vehicle frame.

[0141] like Figure 57As shown, in this embodiment, boom two 8-2 includes boom three hinge plate 8-2-1, connecting rod hinge shaft 8-2-2, hydraulic cylinder hinge shaft 8-2-3, boom two frame 8-2-4, overall adjustment hydraulic cylinder hinge seat 8-2-5, belt support roller 28-2-6, and boom one hinge seat 8-2-7; wherein boom three hinge plate 8-2-1 is the hinge point between boom two 8-2 and boom three 8-3, connecting rod hinge shaft 8-2-2, ... The hydraulic cylinder hinge shaft 8-2-3 is the hinge position of the connecting rod and hydraulic cylinder in the second and third section boom adjustment mechanism 8-6. The second boom frame 8-2-4 is the support frame of the second boom 8-2. The overall adjustment hydraulic cylinder hinge seat 8-2-5 is the hinge point of the overall adjustment hydraulic cylinder 8-10. The belt support roller 28-2-6 is the support device of the unloading belt 8-9 on the second section boom. The first boom hinge seat 8-2-7 is the hinge position of the first boom 8-1.

[0142] like Figure 58 As shown, in this embodiment, boom three 8-3 includes boom two hinge plate 8-3-1, tie rod hinge shaft 8-3-2, boom three frame 8-3-3, and belt support roller 38-3-4; wherein boom two hinge plate 8-3-1 is the hinge point between boom two 8-2 and boom three 8-3, tie rod hinge shaft 8-3-2 is the hinge position of the tie rod in the two-to-three boom adjustment mechanism 8-6, boom three frame 8-3-3 is the support frame of boom three 8-3, which has bolt connection holes and can be connected to boom four 8-4 by bolts, and belt support roller 38-3-4 is the support device for unloading belt 8-9 on the third boom section.

[0143] like Figure 59As shown, in this embodiment, the boom 8-4 includes a tomato baffle 8-4-1, a tomato baffle bracket 8-4-2, a belt drive shaft 8-4-3, a baffle adjustment cylinder 8-4-4, a support rod 8-4-5, a boom frame 8-4-6, a sprocket 8-4-7, and a belt support roller 48-4-8. The tomato baffle 8-4-1 is located at the front end of the unloading device 8, and can change the throwing angle of the tomatoes during unloading to prevent them from being thrown too high and causing leakage. The tomato baffle bracket 8-4-2 is a fixed bracket for the tomato baffle. The belt drive shaft 8-4-3 is connected to the hydraulic motor 8-5, and a sprocket 8-4-7 is fixed on it, allowing it to adjust according to the load. The rotation of the hydraulic motor drives the belt to perform unloading operations. The baffle adjustment cylinder 8-4-4 can adjust the angle of the tomato baffle 8-4-1, thereby controlling the landing point of the tomato according to the actual needs of the unloading operation. The support rod 8-4-5 can support the boom 4 8-4 after the unloading device 8 is folded. The boom 4 frame 8-4-6 is the support frame of the boom 4 8-4. It has a set of multiple bolt holes on one side, which are connected to the boom 3 8-3 by bolts. The relative angle between the boom 4 8-4 and the boom 3 8-3 can be adjusted by adjusting the bolt holes. The belt support roller 48-4-8 is the support device for the unloading belt 8-9 on the fourth section of the boom.

[0144] like Figure 55 As shown, in this embodiment, the hydraulic motor 8-5 is located at the top of the unloading device and serves as the driving force for the unloading belt 8-9 of the entire unloading device 8.

[0145] like Figure 60 As shown, in this embodiment, the two- and three-section boom adjustment mechanism 8-6 includes a pull rod 8-6-1, a connecting rod 8-6-2, and an adjustment cylinder 8-6-3. The relative angle between boom two 8-2 and boom three 8-3 can be adjusted by extending and retracting the overall adjustment cylinder 8-10. At the same time, after the relative angle between boom three 8-3 and boom four 8-4 changes, the length of the pull rod 8-6-1 can be adjusted so that the support rod 8-4-5 can still support boom four 8-4.

[0146] like Figure 55As shown, in this embodiment, the wire mesh 8-7 is installed above boom 2 8-2, boom 3 8-3, and boom 4 8-4 to prevent tomatoes from falling from above the booms 8 during unloading and causing losses. The wire mesh support frame 8-8 is the support frame for the wire mesh 8-7 and is fixed to the boom frame. The unloading belt 8-9 is the conveyor belt for the entire unloading device 8, and it is equipped with a tomato baffle to prevent tomatoes from falling from top to bottom during transport, increasing unloading efficiency. One end of the overall adjustment cylinder 8-10 is hinged to the frame 3, and the other end is hinged to boom 2 8-2, which can adjust the relative angle between boom 1 8-1 and boom 2 8-2 during operation, thereby adjusting the unloading angle of the unloading boom 8 as a whole. The boom support frame 8-11 is fixed to the frame 3 and can support boom 2 8-2 when the unloading device 8 retracts.

[0147] During tomato harvesting, the incoming materials are complex, and mechanical devices alone cannot handle all the problems, such as... Figure 61 and 62 As shown in this embodiment, a manual sorting platform 9 is provided. During harvesting operations, several sorting personnel handle problems that the equipment itself cannot process on the manual sorting platform 9. After the harvesting operation is completed, the manual sorting platform 9 can be folded to reduce the overall width of the vehicle and improve maneuverability. The manual sorting platform includes a support frame 9-1, a main folding bracket 9-2, a secondary folding bracket 9-3, a hinge pin 9-4, a platform step 9-5, a platform guardrail 9-6, a safety door 9-7, side guardrails 9-8, and a footrest 9-9.

[0148] like Figure 63 As shown, in this embodiment, the support frame 9-1 is the main support structure for the entire sorting platform. It includes a main support beam 9-1-1, a pin sleeve 9-1-2, a pedal support 9-1-3, a guardrail support beam 9-1-4, a guardrail mounting seat 9-1-5, and a baffle mounting seat 9-1-6. The main support beam 9-1-1 provides support, the pin sleeve 9-1-2 is fixed to the main support beam 9-1-1 and serves as the hinge mounting hole for the main folding bracket 9-2 and the secondary folding bracket 9-3, the main function of the pedal support 9-1-3 is to support the platform pedal 9-5, the function of the guardrail support beam 9-1-4 and the guardrail mounting seat 9-1-5 is to support and fix the platform guardrail 9-6, and the function of the baffle mounting seat 9-1-6 is to fix the foot baffle 9-9.

[0149] like Figure 64As shown, in this embodiment, the main folding bracket 9-2 includes a fixed bracket 9-2-1, a rotating bracket 9-2-2, a shock-absorbing pad 9-2-3, a limiting rod 9-2-4, and a pin 9-2-5. The main folding bracket 9-2 can rotate relative to the support frame 9-1. One end of the fixed bracket 9-2-1 is hinged to the rotating bracket 9-2-2 via the pin 9-2-5, and the other end is fixed to the frame 3. The other end of the rotating bracket 9-2-2 is hinged to the support frame 9-1 via the hinge pin 9-4. Both the fixed bracket 9-2-1 and the rotating bracket 9-2-2 are provided with corresponding limiting plates and limiting holes. The shock-absorbing pad 9-2-3 is installed on the fixed bracket 9-2-1 and can play a buffering role when the manual sorting platform 9 is folded or unfolded into place. The limiting rod 9-2-4 plays a limiting role and is inserted into the limiting hole to limit the platform after it is folded or unfolded into place.

[0150] like Figure 65 As shown, in this embodiment, the secondary folding bracket 9-3 includes a fixed bracket 9-3-1, a rotating bracket 9-3-2, and a pin 9-3-3. One end of the secondary folding bracket 9-3 is hinged to the rotating bracket 9-3-2 via the pin 9-3-3, and the other end is fixed to the frame 3. The other end of the rotating bracket 9-3-2 is hinged to the support frame 9-1 via a hinge pin 9-4. The main folding bracket 9-2, the secondary folding bracket 9-3, and the support frame 9-1 are connected via the hinge pin 9-4 to form a parallelogram-shaped folding mechanism, realizing the overall folding and unfolding of the manual sorting platform 9. The platform step 9-5 is a person-carrying walking platform with anti-slip perforations. It is supported and fixed by the step support 9-1-3 on the support frame 9-1, and one platform step 9-5 is installed on each level of the platform. The platform guardrail 9-6 is sleeved on the guardrail mounting seat 9-1-5 on the support frame 9-1 and fixed with bolts. Its main function is to prevent people from falling. Safety door 9-7 is hinged to walkway railing 9-6 and can rotate relative to walkway railing 9-6, serving as a passageway for personnel to go up and down the walkway. Side railing 9-8 is hinged to one side of walkway railing 9-6 and can rotate relative to walkway railing 9-6, its function being to prevent personnel from falling from the side. Foot guards 9-9 are fixed to foot guard mounting seats 9-1-6 on support frame 9-1, with one foot guard installed on each step of the walkway to prevent personnel from slipping and falling.

[0151] Advantages of this invention:

[0152] 1. The tomato harvester has functions such as harvesting, separating, removing impurities, color sorting, loading and unloading, and self-propelled operation. It has a compact structure, low cost, and good applicability and versatility.

[0153] 2. The header has functions such as seedling separation, seedling picking, cutting, auxiliary feeding, material conveying, matching with the vehicle speed, header lifting, header adaptability to terrain, and conveyor belt self-cleaning. It can also adjust the header harvesting width according to different planting widths, quickly handle header blockage problems, and adjust the header pressure relative to the ground according to the ground bearing capacity. With complete functions, it can complete tomato harvesting in various planting modes and terrains, with good harvesting results.

[0154] 3. This fruit and vine separation system uses inertial vibration to separate the fruit and vine. The system has adjustable separation vibration amplitude and adjustable compound speed. It can automatically adjust the separation space according to the amount of material. It can automatically remove debris such as mulch and drip irrigation tape from the tomato vines and shake the tomatoes mixed in with the vines after separation onto the tomato conveyor belt. The system has high fruit and vine separation efficiency, low fruit damage rate, good impurity removal effect, and strong adaptability to different yield plots.

[0155] 4. The chassis features four-wheel drive and multiple steering modes, providing excellent off-road capability. Different steering modes can be switched according to actual needs, offering convenience, flexibility, and strong adaptability. The chassis has an automatic leveling function, maintaining a level position in real time, which is beneficial for the stability of material conveying and tomato color sorting.

[0156] 5. The rotary dust collector utilizes a dust collector fan and corresponding dust collector structure to effectively ensure clean air intake for the power system.

[0157] 6. The impurity removal fan can effectively remove impurities from tomatoes during the tomato transportation process, thus improving tomato quality.

[0158] 7. The color sorting system uses color recognition principles and a cylinder-driven spring to remove substandard tomatoes, further improving tomato quality. After color sorting, the tomatoes are rearranged on a conveyor and transported at a uniform speed to the unloading device, ensuring the unloading process proceeds smoothly. A suspension device keeps the color sorting system horizontal during operation, facilitating its function.

[0159] 8. The unloading device includes a multi-section boom. The unloading device unfolds when working and folds back when transporting, which is convenient and flexible. The specially designed unloading belt can effectively complete the lifting, conveying and unloading of tomatoes. The angle of the boom head baffle is precisely adjustable, which can effectively control the landing point of tomatoes during the unloading process and prevent tomatoes from falling due to excessive local accumulation.

[0160] 9. The manual sorting platform is safe and can be opened during harvesting and folded when the vehicle is transferred after harvesting, making it convenient to use and making effective use of space.

[0161] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A tomato harvester, characterized in that, The machine includes a frame (3), on which are mounted a cutting platform (1) for cutting tomatoes along with their vines, a fruit-vine separation system (2) for separating tomatoes from their vines, a transverse conveying system (5) for receiving the separated tomatoes, a dust removal fan (6) for removing impurities from the tomatoes on the transverse conveying system (5), a color sorting system (7) for receiving tomatoes on the transverse conveying system (5) and removing substandard tomatoes and impurities from the tomato stream, an unloading device (8) for unloading the sorted tomatoes into a transport vehicle, and a power system (4) for providing power for the various actions and movement of the tomato harvester. The seedling separation system (2) includes a conveying and feeding device (2-1) for conveying seedlings, which is installed on the frame (3); a separation channel (2-8) for receiving the seedlings fed by the conveying and feeding device (2-1); a seedling separator (2-3) for separating the seedlings in the separation channel (2-8); a vibration generator (2-2) for driving the seedling separator (2-3) to vibrate; a roller drive device (2-4) for driving the seedling separator (2-3) to rotate; a fruit conveying device (2-6) for conveying the separated fruits; and a seedling stem conveying device (2-7) for conveying the separated seedling stems and screening out the fruits entangled in the seedling stems. The separation channel (2-8) is equipped with a cleaning roller (2-5-4) and a cleaning motor (2-5-5) for driving the cleaning roller (2-5-4) to rotate. The rotation direction of the cleaning roller (2-5-4) is opposite to the rotation direction of the conveying and feeding device (2-1) so as to throw the mulch film and drip irrigation tape out of the separation channel (2-8). The cutting platform (1) includes a seedling separating device (1-1) for separating tomato vines that are entangled across the ridges, a seedling lifting device (1-2) for lifting the roots of the tomato vines, a cutting device (1-3) for cutting the vines, an auxiliary feeding device (1-4) adapted to the seedling lifting device (1-2), a conveying device (1-5) for conveying the vines to the conveying and feeding device (2-1), a power roller (1-6) for supporting the cutting platform (1) as it moves along the ridges, a cutting platform lifting cylinder (1-7) for adjusting the height of the cutting platform (1) above the ground, and a cutting platform frame (1-8) for keeping the cutting platform (1) parallel to the ground. The cutting platform frame (1-8) includes a conveyor belt frame (1-8-1) and a cutting platform connection assembly (1-8-2) rotatably connected to the conveyor belt frame (1-8-1). The impurity removal fan (6) includes a fan housing (6-1), a fan mounting base (6-2) on the fan housing (6-1) for connecting the vehicle frame (3), an adjusting rod (6-3) on the fan housing (6-1) for adjusting the air outlet angle of the fan housing (6-1), a left air inlet shield (6-4) on the first end of the fan housing (6-1), a middle air inlet shield (6-5) in the middle of the fan housing (6-1), a right air inlet shield (6-6) on the second end of the fan housing (6-1), an air inlet arc plate (6-7) on the fan housing (6-1) for forming an air inlet channel, an air outlet grid (6-8) inside the air outlet of the fan housing (6-1), and an air outlet grid inside the inner cavity of the fan housing (6-1). The fan impeller assembly (6-9) includes a left air inlet shroud (6-4), a middle air inlet shroud (6-5), a right air inlet shroud (6-6), and an air inlet arc plate (6-7), all of which are perforated plates. The left air inlet shroud (6-4) and the middle air inlet shroud (6-5), as well as the right air inlet shroud (6-6) and the middle air inlet shroud (6-5), are connected by the air inlet arc plate (6-7). The fan impeller assembly (6-9) includes a support bearing (6-9-1), a drive motor (6-9-5) for driving the support bearing (6-9-1) to rotate, and fan impellers (6-9-2) spaced apart on the support bearing (6-9-1). A gap is left between the blades of the fan impeller (6-9-2) and the outer wall of the support bearing (6-9-1). The color sorting system (7) includes a pre-sorting conveying device (7-1), a primary color sorting device (7-2), a secondary color sorting device (7-3), a suspension device (7-4), and a pre-unloading conveying device (7-5). The suspension device (7-4) includes a suspension frame welded (7-4-1), a suspension mounting plate (7-4-2), a suspension shaft welded (7-4-3), a second leveling cylinder (7-4-4), a primary color sorting tie rod (7-4-5), and a secondary color sorting device (7-5). The components include a color sorting rod (7-4-6), a color sorting connecting frame (7-4-7), a seated bearing (7-4-8), a pin (7-4-9), and a level (7-4-10). One end of the suspension bracket weld (7-4-1) is fixedly connected to the vehicle frame (3), and the other end is hinged to the color sorting connecting frame (7-4-7) via the second leveling cylinder (7-4-4). The suspension mounting plate (7-4-2) is fixedly connected to the vehicle frame (3). The suspension shaft weld (7-4-3) is rotatably mounted between the suspension frame weld (7-4-1) and the suspension mounting plate (7-4-2) via two seated bearings (7-4-8). The primary color sorting rod (7-4-5) and the secondary color sorting rod (7-4-6) are hinged to both ends of the suspension shaft weld (7-4-3), respectively. One end of the primary color sorting rod (7-4-5) is hinged to the first end of the suspension shaft weld (7-4-3). One end of the secondary color sorting rod (7-4-6) is hinged to the color sorting connecting frame (7-4-7) connecting the primary color sorting device (7-2). One end of the secondary color sorting rod (7-4-6) is hinged to the second end of the suspension shaft welded to (7-4-3), and the other end is hinged to the color sorting connecting frame (7-4-7) connecting the secondary color sorting device (7-3). The level (7-4-10) is mounted on the primary color sorting device (7-2) or the secondary color sorting device (7-3). The unloading device (8) includes boom one (8-1), boom two (8-2), boom three (8-3) and boom four (8-4) hinged in sequence, and also includes an unloading belt (8-9) wound around boom one (8-1), boom two (8-2), boom three (8-3) and boom four (8-4), a hydraulic motor (8-5) for driving the unloading belt (8-9) to operate, a two- or three-section boom adjustment mechanism (8-6) for adjusting the angle between boom two (8-2) and boom three (8-3), an integral adjustment cylinder (8-10) for adjusting the angle between boom one (8-1) and boom two (8-2), and a boom support frame (8-11) for limiting the folding position of boom two (8-2).

2. The tomato harvester according to claim 1, characterized in that, The fruit conveying device (2-6) includes a fruit conveyor belt (2-6-1), a first conveying motor (2-6-5), a first drive shaft (2-6-2) driven by the first conveying motor (2-6-5), a first tensioning sleeve (2-6-4) sleeved on the first drive shaft (2-6-2), a first drive wheel (2-6-3) sleeved on the first tensioning sleeve (2-6-4) for driving the fruit conveyor belt (2-6-1), and a cleaning roller (2-6-9) arranged on the return section of the fruit conveyor belt (2-6-1). The cleaning roller (2-6-9) includes mounting plates (1-5-7-5) spaced apart on the frame (3), sprockets (1-5-7-1) rotatably connected to the mounting plates (1-5-7-5), metal rods (1-5-7-2) with their ends respectively connected to the corresponding sprockets (1-5-7-1), and tension springs (1-5-7-4) for keeping the metal rods (1-5-7-2) engaged with the fruit conveyor belt (2-6-1).

3. The tomato harvester according to claim 1, characterized in that, The seedling conveying device (2-7) includes a seedling conveyor belt (2-7-1), a second conveying motor (2-7-5), a second drive shaft (2-7-3) driven by the second conveying motor (2-7-5), a second tensioning sleeve (2-7-4) sleeved on the second drive shaft (2-7-3), a second drive wheel (2-7-2) sleeved on the second tensioning sleeve (2-7-4) for driving the seedling conveyor belt (2-7-1), and a seedling vibrator (2-7-9) arranged on the conveying section of the seedling conveyor belt (2-7-1). The seedling vibrator (2-7-9) includes a vibrating motor (2-7-9-1), a third drive shaft (2-7-9-4) driven to rotate by the vibrating motor (2-7-9-1), and a vibrating wheel (2-7-9-5) sleeved on the third drive shaft (2-7-9-4) for driving the seedling conveyor belt (2-7-1) to undulate and vibrate.

4. The tomato harvester according to claim 1, characterized in that, The frame (3) includes an upper frame (3-1), a lower frame (3-2) for supporting the upper frame (3-1), a front axle (3-3) mounted on the lower frame (3-2), a front axle drive shaft (3-4) for driving the front axle (3-3), a rear axle (3-9) mounted on the lower frame (3-2), a rear axle drive shaft (3-8) for driving the rear axle (3-9), a tire (3-5) for supporting the movement of the lower frame (3-2), a gearbox (3-6), a motor (3-7), and a first leveling cylinder (3-10) for keeping the lower frame (3-2) horizontal. The front axle (3-3) has front axle cylinder supports (3-11) at both ends. The first end of a set of first leveling cylinders (3-10) is hinged to the front axle cylinder support (3-11), and the second end is hinged to the lower frame (3-2). The rear axle (3-9) has rear axle cylinder supports (3-12) at both ends. The first end of another set of first leveling cylinders (3-10) is hinged to the rear axle cylinder support (3-12), and the second end is hinged to the lower frame (3-2). The motor (3-7) is connected to the front axle drive shaft (3-4) and the rear axle drive shaft (3-8) through the gearbox (3-6).

5. The tomato harvester according to claim 1, characterized in that, The power system (4) has a rotary dust removal device (4-1) installed at the air intake end. The rotary dust removal device (4-1) includes a radiator frame (4-1-1) installed on the frame (3). The radiator frame (4-1-1) is equipped with a dust removal door frame (4-1-2), a rotating air intake hood (4-1-3) installed on the dust removal door frame (4-1-2), a discharge pipe (4-1-4) for sucking up impurities on the air intake hood (4-1-3), and a device for driving the air intake hood (4-1-3). -3) A rotating dust collector drive wheel system (4-1-5), a dust collector fan (4-1-6) connected to the discharge pipe (4-1-4), a transition mechanism (4-1-7) for driving the dust collector drive wheel system (4-1-5), a fan drive (4-1-8) for driving the dust collector fan (4-1-6), an engine (4-1-9) for driving the fan drive (4-1-8), and a radiator (4-1-10) for cooling the engine (4-1-9). The air intake hood (4-1-3) is a perforated plate, and the dust removal door frame (4-1-2) is provided with a flow cut-off plate (4-1-2-4) corresponding to the discharge pipe (4-1-4). The discharge pipe (4-1-4) and the flow cut-off plate (4-1-2-4) are respectively arranged on both sides of the air intake hood (4-1-3).

6. The tomato harvester according to claim 1, characterized in that, It also includes a manual sorting platform (9) installed on the frame (3), the manual sorting platform (9) including a support frame (9-1), a main folding bracket (9-2), a secondary folding bracket (9-3) installed parallel to the main folding bracket (9-2), a hinge pin (9-4), a platform step (9-5) installed on the support frame (9-1), a platform guardrail (9-6) installed on the support frame (9-1), and a safety door (9-7) installed on the platform guardrail (9-6). Both the main folding bracket (9-2) and the secondary folding bracket (9-3) include a fixed bracket, a rotating bracket, and a pin for hinged connection between the fixed bracket and the rotating bracket. The fixed bracket is mounted on the vehicle frame (3), and the rotating bracket is hinged to the support frame (9-1) via the hinge pin (9-4). Limiting components are provided on the main folding bracket (9-2) and / or the secondary folding bracket (9-3), which are used to limit the rotation of the rotating bracket (22) or release the restriction on the rotation of the rotating bracket (22).

Images