A crop harvester suitable for land work

Abstract

This invention relates to the field of agricultural harvesters and discloses a crop harvester suitable for land operations, comprising a body assembly, a cutting unit, and a conveying unit. Both the cutting and conveying units are located on one side of the body assembly. The body assembly consists of a walking mechanism and a driving mechanism. The walking mechanism is located at the bottom of the body assembly. This invention enhances the machine's adaptability and stability on rugged terrain by employing a combination of tracks and wheels in the walking mechanism, reducing bumps during operation and thus lowering the risk of crop damage. The cutting unit uses a comb plate to comb through the crop roots, ensuring neat cuts and improving harvesting efficiency and crop quality. The conveying unit uses auger blades to perform secondary cutting while conveying, effectively avoiding clogging problems and ensuring smooth continuous operation. The overall design simplifies the operation process, significantly reduces labor intensity, and is suitable for large-scale farmland operations.

Description

Technical Field

[0001] This invention relates to the field of agricultural harvesters, and in particular to a crop harvester suitable for land operations. Background Technology

[0002] With the continuous advancement of agricultural mechanization technology, the number of harvesters in use is increasing. However, most harvesters are currently designed for specific crops and remain idle for extended periods during the off-season, resulting in low equipment utilization. Users face high equipment maintenance costs and a low return on investment, ultimately leading to resource waste.

[0003] Chinese patent CN119678740A discloses a crop combine harvester, including an engine, frame, harvesting platform, angle adjustment mechanism, pusher blade, conveying roller, rotating clamping mechanism, feeding and conveying mechanism, and mixing and threshing mechanism. The rotating clamping mechanism includes a first roller toothed disc, a first clamping rod, a second roller toothed disc, and a second clamping rod. The first and second clamping rods are used to clamp and convey crops upwards with rotational motion. The conveying roller of this invention, through rotation, transports the shoveled crop stalks to the rotating clamping mechanism. The first and second clamping rods of the rotating clamping mechanism precisely clamp the stalks through alternating engagement. The stalks are then conveyed to the mixing and threshing mechanism for fruit separation via the feeding and conveying mechanism. Subsequently, the fruits are conveyed to the lifting mechanism via the unloading conveying mechanism and vibrating screen, and then fed into the receiving box via a sliding chute. This achieves efficient crop conveying, automatic threshing, fruit separation, and clean collection, effectively improving the harvester's operating efficiency.

[0004] Based on the aforementioned existing technologies, it has been found that in the process of harvesting crops, the cutting and conveying units of traditional harvesters have poor coordination, resulting in uneven cutting of crop roots and easy blockage of material conveying. This not only reduces operational efficiency but may also exacerbate crop damage due to mechanical collisions. On the other hand, key components (such as comb plates and rotating shafts) are easily entangled by straw, vines, and other debris in complex field operations, and existing equipment lacks an efficient self-cleaning mechanism, relying on manual intervention, which increases maintenance costs and affects the continuity of operations. In addition, the insufficient adaptability of the walking mechanism to rugged terrain and the low degree of automation of the control system further limit the stability and reliability of the machine in large-scale farmland. Summary of the Invention

[0005] The purpose of this invention is to provide a crop harvester suitable for land operations, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a crop harvester suitable for land operations, comprising a body assembly, a cutting unit, and a conveying unit, wherein the cutting unit and the conveying unit are both located on one side of the body assembly, the body assembly is composed of a walking mechanism and a driving mechanism, the walking mechanism is located at the bottom of the body assembly, the walking mechanism includes tracks and wheels, and the tracks and wheels cooperate to drive the body assembly to move as a whole;

[0007] The cutting unit is located at the front of the cab. The cutting unit includes a connecting plate and a bucket. A rotating shaft is provided in the middle of the connecting plate. The rotating shaft is fixedly connected to the connecting plate. A transmission wheel one is provided at the end of the rotating shaft away from the connecting plate. The transmission wheel one is mutually driven with the transmission wheel two through a transmission belt. The middle of the transmission wheel two is connected to the power supply equipment through a rotating shaft. The power supply equipment can rotate synchronously with the transmission wheel one and the transmission wheel two.

[0008] The outer surface of the rotating shaft is provided with a connecting pipe, which is sleeved on the outside of the rotating shaft. The outer side of the connecting pipe is provided with a round tube, and the outer side of the round tube is provided with multiple operating chambers. The inside of the operating chamber is provided with a sliding tube, and a cleaning brush is slidably installed inside the sliding tube.

[0009] Preferably, the driving mechanism is located above the traveling mechanism. The driving mechanism includes a driver's cab, and the driver's cab is equipped with a control panel inside. The control panel can control the operation of the traveling mechanism, the cutting unit, and the conveying unit. A sunshade is provided above the driver's cab.

[0010] Preferably, a support rod is fixedly provided on one side of the connecting plate, and a comb plate is provided on one side of the support rod. The comb plate is fixedly connected to one side of the support rod, and the comb plate can be paired with the roots of crops for combing.

[0011] Preferably, the conveying unit is located inside the bucket. The conveying unit includes a conveying roller, and the outer surface of the conveying roller is provided with auger blades. The conveying roller is rotatably connected to the left and right sides of the inner wall of the bucket. The outer side of the bucket is provided with a drive chamber, and the drive chamber is provided with a rotary drive device. The output end of the rotary drive device passes through the drive chamber and is fixedly connected to the end of the conveying roller. The rotary drive device can drive the conveying roller to rotate inside the bucket.

[0012] Preferably, when the conveying roller is rotating, it can work with the auger blades on its outer side to cut the combed crop roots and stems;

[0013] A fixed rod is provided above the bucket. The end of the fixed rod away from the bucket is movably connected to the rotating shaft. There are at least two fixed rods, and the two fixed rods are located on the left and right sides of the bucket respectively. Both fixed rods are rotatably connected to the left and right ends of the rotating shaft. The two fixed rods are rotatably connected to the connecting plate through the rotating shaft.

[0014] Preferably, the number of connecting discs is at least two, and the two connecting discs are symmetrically arranged on the left and right sides of the inner wall of the bucket. The number of support rods and comb plates is set to multiple, and each support rod and comb plate is arranged in the area between the two connecting discs along the outer circumference of the connecting disc.

[0015] Preferably, the end of the cleaning brush away from the sliding tube is located above the operating chamber. The cleaning brush is composed of multiple brushes twisted together. A sliding plate is provided at the end of the cleaning brush near the sliding tube. A return spring is provided between the sliding plate and the bottom of the inner wall of the sliding tube. When the return spring is in a stretched state, the cleaning brush moves away from the sliding tube.

[0016] Preferably, a horizontal crossbar is slidably provided inside the operating chamber. The horizontal crossbar is located above the sliding tube, and a clamping plate is provided on the side of the horizontal crossbar near the sliding tube. The clamping plate is arc-shaped and its shape matches the outer contour of the sliding tube. There are at least two horizontal crossbars, and both horizontal crossbars are located inside the operating chamber. An electromagnet is provided at the bottom of the horizontal crossbar, and a compression spring is provided on the side of the horizontal crossbar near the electromagnet. The end of the compression spring away from the horizontal crossbar is fixedly set at the bottom of the inner wall of the operating chamber, and a magnetic block is provided on the side of the inner wall of the operating chamber near the compression spring. The position of the magnetic block corresponds one-to-one with the position of the electromagnet. The cooperation of the electromagnet and the magnetic block allows the compression spring to be in either a contracted or extended state.

[0017] Preferably, when the compression spring is in the extended state, the two horizontal crossbars move away from the sliding tube along the inner wall of the operating chamber, and when the compression spring is in the contracted state, the two horizontal crossbars move closer to the sliding tube along the inner wall of the operating chamber.

[0018] A compression spring is provided between two horizontal crossbars. The left and right ends of the compression spring are fixedly connected to the opposite surfaces of the two horizontal crossbars, respectively. An electromagnet and a magnetic block are provided between the two horizontal crossbars. The electromagnet and the magnetic block cooperate to control the distance between the two horizontal crossbars to shorten or lengthen. A sliding groove rod is provided between the two horizontal crossbars. The left and right ends of the sliding groove rod pass through the two horizontal crossbars, and the outer surfaces of the left and right ends of the sliding groove rod are slidably connected to the inside of the two horizontal crossbars.

[0019] The technical effects and advantages of this invention are as follows:

[0020] 1. This invention utilizes a walking mechanism combining tracks and wheels, enhancing the machine's adaptability and stability on rugged terrain, reducing bumps during operation, and thus lowering the risk of crop damage. The cutting unit uses a comb plate to comb through the crop roots, ensuring neat cuts, improving harvesting efficiency and crop quality. The conveying unit uses auger blades to perform secondary cutting while conveying, effectively avoiding blockages and ensuring smooth continuous operation. The overall design simplifies the operation process, significantly reduces labor intensity, and is suitable for large-scale farmland operations.

[0021] 2. This invention offers significant maintenance advantages through its intelligent adjustable mechanism. Based on electromagnetic control technology, the system allows for flexible switching between gentle and powerful cleaning modes. It automatically responds to blockages on the comb plate or rotating shaft. In gentle mode, the brushes are loose and spread out, gently removing loose attachments such as dust and light stems and leaves, avoiding component wear. In powerful mode, the brushes are tightly bound into a rigid structure, forcefully scraping away stubborn tangled materials such as straw or vines. This differentiated cleaning not only reduces downtime caused by blockages but also extends the equipment's lifespan and improves operational reliability. Furthermore, after cleaning, the brushes automatically retract and lock, keeping the equipment clean and reducing the frequency of manual intervention. Combined with the optimized layout of the overall structure, such as the connecting plate and rotating shaft, this further enhances the machine's durability and ease of maintenance, enabling the harvester to operate efficiently in complex working environments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall first-view structure of the present invention;

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

[0024] Figure 3 This is a schematic diagram of the overall second-view structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the connecting disk and related structures of the present invention;

[0026] Figure 5 This is a schematic diagram of the assembly state of transmission wheel one and transmission wheel two of the present invention;

[0027] Figure 6 This is a schematic diagram of the installation state of the circular tube and connecting tube of the present invention;

[0028] Figure 7 This is a schematic diagram of the installation state of the sliding tube and cleaning brush of the present invention;

[0029] Figure 8This is a schematic diagram of the assembly state of the horizontal crossbar and clamping plate of the present invention;

[0030] Figure 9 for Figure 8 Enlarged structural diagram at point A in the middle;

[0031] Figure 10 This is a schematic diagram of the cleaning brush and related structures of the present invention.

[0032] In the diagram: 1. Fuselage assembly; 101. Cockpit; 102. Sun visor; 103. Control panel; 104. Tracks; 105. Wheels; 106. Conveyor compartment;

[0033] 2. Cutting unit; 201. Connecting plate; 202. Drive chamber; 203. Transmission belt; 204. Transmission wheel one; 205. Conveyor roller; 206. Comb plate; 207. Support rod; 208. Rotating shaft; 209. Transmission wheel two; 210. Bucket; 211. Sliding rod; 212. Connecting pipe; 213. Round pipe; 214. Operating chamber; 215. Fixed rod; 216. Sliding pipe; 217. Horizontal crossbar; 218. Clamping plate; 219. Compression spring one; 220. Compression spring two; 221. Electromagnet one; 222. Electromagnet two; 223. Cleaning brush. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] This invention provides, for example Figures 1 to 10 The crop harvester shown includes a body assembly 1, a cutting unit 2, and a conveying unit. The cutting unit 2 and the conveying unit are both located on one side of the body assembly 1. The cutting unit 2 can work with the body assembly 1 to cut crops. The conveying unit includes a storage unit. The conveying unit can transport the cut crops. The conveying unit, together with the storage unit, can transport the crops to the storage unit for temporary storage. The storage unit is located on the side of the body assembly 1 closer to the conveying unit.

[0036] The fuselage assembly 1 consists of a walking mechanism and a driving mechanism. The walking mechanism is located at the bottom of the fuselage assembly 1 and includes tracks 104 and wheels 105. The tracks 104 and wheels 105 work together to drive the fuselage assembly 1 to move as a whole. The driving mechanism is located above the walking mechanism and includes a driver's cabin 101. The driver's cabin 101 is equipped with a control panel 103, which can control the operation of the walking mechanism, the cutting unit 2, and the conveying unit. A sunshade 102 is provided above the driver's cabin 101.

[0037] The cutting unit 2 is located at the front end of the cab 101. The cutting unit 2 includes a connecting plate 201 and a bucket 210. A rotating shaft 208 is provided in the middle of the connecting plate 201. The rotating shaft 208 is fixedly connected to the connecting plate 201. A transmission wheel 204 is provided at the end of the rotating shaft 208 away from the connecting plate 201. The transmission wheel 204 is mutually driven by a transmission belt 203 and a transmission wheel 209. The transmission wheel 209 is located on one side of the bucket 210. The middle of the transmission wheel 209 is connected to a power supply device through a rotating shaft. The power supply device can rotate synchronously with the transmission wheel 204 and the transmission wheel 209, and drive the rotating shaft 208 and the connecting plate 201 to rotate. A support rod 207 is fixedly provided on one side of the connecting plate 201. A comb plate 206 is provided on one side of the support rod 207. The comb plate 206 is fixedly connected to one side of the support rod 207, and the comb plate 206 can comb the roots of crops.

[0038] The conveying unit is located inside the bucket 210. The conveying unit includes a conveying roller 205, whose outer surface is equipped with auger blades. The conveying roller 205 is rotatably connected to the left and right sides of the inner wall of the bucket 210. A drive chamber 202 is located on the outer side of the bucket 210, and a rotary drive device is located inside the drive chamber 202. The output end of the rotary drive device passes through the drive chamber 202 and is fixedly connected to the end of the conveying roller 205. The rotary drive device can drive the conveying roller 205 to rotate inside the bucket 210. When the conveying roller 205 is rotating, it can... The auger blades on the outside of the bucket 210 cut the combed crop roots and then transport the fruit particles from the top of the crop to one side of the bucket 210. A fixed rod 215 is provided above the bucket 210. The end of the fixed rod 215 away from the bucket 210 is movably connected to the rotating shaft 208. There are at least two fixed rods 215, and the two fixed rods 215 are located on the left and right sides of the bucket 210 respectively. Both fixed rods 215 are rotatably connected to the left and right ends of the rotating shaft 208. The two fixed rods 215 are rotatably connected to the connecting plate 201 through the rotating shaft 208.

[0039] The conveying unit also includes a conveying bin 106, which is located on one side of the driver's cab 101. The interior of the conveying bin 106 is connected to one side of the bucket 210. The interior of the conveying bin 106 is equipped with a conveying mechanism (not shown in the figure), which consists of a conveyor belt and two symmetrically arranged drive rollers. The two symmetrically arranged drive rollers are driven by a power supply. The conveying mechanism is the same as that in common combine harvesters, used to convey and screen the cut crops to separate the crop fruit particles from the crop roots and stems. The specific steps and implementation details will not be described here.

[0040] The number of connecting discs 201 is at least two, and the two connecting discs 201 are symmetrically arranged on the left and right sides of the inner wall of the bucket 210. The number of support rods 207 and comb plates 206 is multiple, and each support rod 207 and comb plate 206 is arranged along the outer circumference of the connecting disc 201 in the area between the two connecting discs 201. The outer surface of the rotating shaft 208 is provided with a connecting pipe 212, which is sleeved on the outer side of the rotating shaft 208. A circular tube 213 is provided on the outer side of the connecting pipe 212, and multiple... An operating chamber 214 is provided inside the operating chamber 214, and a sliding tube 216 is provided inside the sliding tube 216. A cleaning brush 223 is slidably installed inside the sliding tube 216. The end of the cleaning brush 223 away from the sliding tube 216 is located above the operating chamber 214. The cleaning brush 223 is composed of multiple brushes twisted together. A sliding plate is provided at the end of the cleaning brush 223 near the sliding tube 216. A return spring is provided between the sliding plate and the bottom of the inner wall of the sliding tube 216. When the return spring is in a stretched state, the cleaning brush 223 moves away from the sliding tube 216.

[0041] A horizontal crossbar 217 is slidably mounted inside the operating chamber 214. The horizontal crossbar 217 is located above the sliding tube 216, and a clamping plate 218 is provided on the side of the horizontal crossbar 217 closest to the sliding tube 216. The clamping plate 218 is arc-shaped and its shape matches the outer contour of the sliding tube 216. There are at least two horizontal crossbars 217, and both horizontal crossbars 217 are located inside the operating chamber 214. The water... An electromagnet 221 is provided at the bottom of the horizontal bar 217. A compression spring 219 is provided on the side of the horizontal bar 217 near the electromagnet 221. The end of the compression spring 219 away from the horizontal bar 217 is fixedly installed at the bottom of the inner wall of the operating chamber 214. A magnetic block is provided on the side of the inner wall of the operating chamber 214 near the compression spring 219. The position of the magnetic block corresponds one-to-one with the position of the electromagnet 221. The cooperation of the electromagnet 221 and the magnetic block enables the compression spring to... Compression spring 219 can be in either a contracted or extended state. When compression spring 219 is in the extended state, the two horizontal crossbars 217 move away from the sliding tube 216 along the inner wall of the operating chamber 214. When compression spring 219 is in the contracted state, the two horizontal crossbars 217 move closer to the sliding tube 216 along the inner wall of the operating chamber 214. A second compression spring 220 is provided between the two horizontal crossbars 217, and the left and right ends of the second compression spring 220 are respectively connected to the two horizontal crossbars 216. The opposite surfaces of the rods 217 are fixedly connected. An electromagnet 222 and a magnetic block 2 are respectively provided between the two horizontal rods 217. The electromagnet 222 and the magnetic block 2 cooperate to control the distance between the two horizontal rods 217 to shorten or lengthen. A sliding rod 211 is provided between the two horizontal rods 217. Both ends of the sliding rod 211 pass through the two horizontal rods 217, and the outer surfaces of both ends of the sliding rod 211 are slidably connected to the inside of the two horizontal rods 217.

[0042] In operation, the driver starts the machine from inside the cab 101 via the control panel 103, driving the walking wheels 105, which in turn move the tracks 104, thus allowing the entire machine assembly 1 to move stably in the field, providing a foundation for continuous harvesting. Subsequently, the power supply (such as an electric motor) is activated, driving the second transmission wheel 209 to rotate, which in turn drives the first transmission wheel 204 to rotate synchronously via the transmission belt 203. The first transmission wheel 204 drives the rotating shaft 208 fixed to it to rotate, and the rotating shaft 208 drives two symmetrically arranged connecting discs 201. As the machine rotates, the support rod 207 and the comb plate 206 fixed to one side of the connecting plate 201 move in a circular motion. When the machine moves forward, the rotating comb plate 206 "combs" and guides the crop plants, so that their roots are neatly facing the inlet of the bucket 210. At the same time, the front edge of the bucket 210 acts like a fixed blade, forming a shearing or impact effect with the rotating comb plate 206 or the support rod 207 to cut off the crop roots. The cut crop plants are then poured into the bucket 210 under the force of gravity and the push of subsequent crops.

[0043] The conveying roller 205 located inside the bucket 210 starts to rotate under the drive of the rotary drive device. The auger blades on its outer side rotate accordingly, generating axial conveying force. The crops poured into the bucket 210 are captured by the rotating auger blades. The sharp edges of the auger blades or their cooperation with the inner wall of the bucket 210 can further cut or crush the roots and stems of the crops. At the same time, the auger blades continuously push the materials (including fruit particles, stems, etc.) spirally to one side of the bucket 210 (i.e. the side connected to the conveying bin 106), completing the collection and primary conveying of the materials.

[0044] Subsequently, the material pushed out from the bucket 210 enters the conveying bin 106 located on one side of the cab 101. The conveying mechanism inside the conveying bin 106 (such as consisting of a conveyor belt and drive rollers) is activated to receive the material from the bucket 210. During the conveying process, this mechanism uses common combine harvester technologies such as vibration, sieves, and airflow to separate the crop fruit kernels from long stems, leaves, and other impurities. The separated pure (or nearly pure) fruit kernels are further conveyed by the conveying mechanism and eventually fall into the storage unit located on the machine body assembly 1 for temporary centralized storage, awaiting subsequent unloading. The separated stems and other debris are usually discharged outside the machine.

[0045] Additionally, during non-cleaning periods, the system is in standby mode. At this time, electromagnet 221 and magnetic block 1 attract each other, causing the horizontal bar 217 to be pulled towards the bottom of the operating chamber 214 with the assistance of compression spring 219. Simultaneously, electromagnet 222 and magnetic block 2 attract each other, causing the two horizontal bars 217 to overcome the elasticity of compression spring 220 and move closer together. Under the combined action of these two magnetic forces, the arc-shaped clamping plates 218 at the front ends of the two horizontal bars 217 are not only raised to their highest point (corresponding to the bottom of the brush), but also tightly clamped together with maximum clamping force, firmly locking the sliding tube 216 and its internal cleaning brush 223 in a retracted state. At this time, the cleaning brush 223 is completely retracted into the operating chamber 214, forming a tightly wound shape, and does not contact any external components.

[0046] When there are many loose stems, leaves, and dust adhering between the comb plates 206, the system activates a gentle cleaning mode. The control system changes the current direction of the electromagnet 221, causing it to repel the magnetic block. Under the action of the repulsive force, the compression spring 219 is further compressed, driving the two horizontal crossbars 217 to slide upward along the inner wall of the operating chamber 214. By controlling the current magnitude, the height at which the horizontal crossbars 217 stop can be precisely controlled. When the maximum cleaning range is required, the crossbars are driven to the top position. At this time, the clamping plate 218 still remains closed, but its position has been moved upward.

[0047] Subsequently, the control system weakens the attraction between electromagnet 222 and magnetic block 2, compresses spring 220, extends, and pushes the two horizontal bars 217 to separate slightly, thereby greatly reducing the clamping force of clamping plate 218 on sliding tube 216, but not completely releasing it. At the same time, the contraction force of return spring (in a stretched state) is released.

[0048] Under the tension of the return spring, the sliding tube 216 causes the cleaning brush 223 to pop out downwards. However, since the clamping plate 218 is still in a high position and the clamping force is very small, the radial constraint on the cleaning brush 223 during the pop-out process is very weak. Therefore, the multiple brushes naturally spread out and fluff up under their own elasticity and motion inertia, forming a brush head with a large degree of spread. As the rotating shaft 208 rotates, this fluffy brush head can gently and thoroughly sweep across the gaps between the teeth of the comb plate 206, effectively removing loose attachments and avoiding damage to the comb teeth.

[0049] When straw or vines are tightly entangled on the comb plate 206 or the rotating shaft 208, the system switches to a powerful scraping mode.

[0050] First, the control system causes electromagnet 221 to generate a strong attraction between it and magnetic block 1, which quickly pulls the two horizontal bars 217 back and locks them at the bottom of the operating chamber 214. Then, the control system enhances the attraction between electromagnet 222 and magnetic block 2, causing the two horizontal bars 217 to overcome the elastic force of compression spring 220 and forcefully close together, so that the two clamping plates 218 tightly clamp the cleaning brush 223 in the lower part of the sliding tube 216 with the maximum clamping force.

[0051] Under the aforementioned actions, the cleaning brush 223 is subjected to forces in two directions: radially, it is tightly bound by the clamping plate 218 with great pressure, forcing all the brush bristles to be tightly bundled together; axially, because the horizontal bar 217 is located at the bottom, a strong upward pulling force is applied to the root of the brush through the clamping plate 218. The combined effect of radial binding and axial pulling force makes the originally flexible brush bundle straight and hard, like a rigid scraper or pickaxe. When the return spring is released, this bundle of "rigidified" cleaning brushes 223 is ejected. It impacts and cuts into the stubborn debris wrapped around the comb plate 206 or the rotating shaft 208 at high speed, using its rigid structure to forcibly scrape, crush, or peel off the wrapped debris, achieving powerful cleaning.

[0052] It is worth noting that, regardless of the mode, after a single cleaning action is completed, the control system will first increase the clamping force through electromagnet 222 and magnetic block 2, and clamping plate 218 will tightly hold the brush. Then, electromagnet 221 and magnetic block 1 will cooperate to lift the horizontal bar 217 (along with the clamped cleaning brush 223) back to the top of the operating chamber 214, so that the brush is completely retracted. Finally, the system will return to the standby lock state described in the first step, ready for the next operation.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A crop harvester suitable for land operations, comprising a body assembly (1), a cutting unit (2), and a conveying unit, wherein the cutting unit (2) and the conveying unit are both located on one side of the body assembly (1), characterized in that: The fuselage assembly (1) consists of a walking mechanism and a driving mechanism. The walking mechanism is located at the bottom of the fuselage assembly (1). The walking mechanism includes tracks (104) and wheels (105). The tracks (104) and wheels (105) work together to drive the fuselage assembly (1) to move as a whole. The cutting unit (2) is located at the front end of the cab (101). The cutting unit (2) includes a connecting plate (201) and a bucket (210). A rotating shaft (208) is provided in the middle of the connecting plate (201). The rotating shaft (208) is fixedly connected to the connecting plate (201). A transmission wheel (204) is provided at one end of the rotating shaft (208) away from the connecting plate (201). The transmission wheel (204) is mutually driven by the transmission belt (203) and the transmission wheel (209). The middle of the transmission wheel (209) is connected to the power supply equipment through a rotating shaft. The power supply equipment can rotate synchronously with the transmission wheel (204) and the transmission wheel (209). The outer surface of the rotating shaft (208) is provided with a connecting pipe (212), the connecting pipe (212) is sleeved on the outer side of the rotating shaft (208), the outer side of the connecting pipe (212) is provided with a round pipe (213), the outer side of the round pipe (213) is provided with a plurality of operating chambers (214), the inside of the operating chamber (214) is provided with a sliding pipe (216), and a cleaning brush (223) is slidably provided inside the sliding pipe (216). A horizontal crossbar (217) is slidably mounted inside the operating chamber (214). The horizontal crossbar (217) is located above the sliding tube (216), and a clamping plate (218) is provided on the side of the horizontal crossbar (217) near the sliding tube (216). The clamping plate (218) is arc-shaped, and its shape is adapted to the outer contour of the sliding tube (216). There are at least two horizontal crossbars (217), and both horizontal crossbars (217) are located inside the operating chamber (214). An electromagnet (221) is provided at the bottom of the horizontal crossbar (217), and a compression spring (219) is provided on the side of the horizontal crossbar (217) near the electromagnet (221). The end of the compression spring (219) away from the horizontal bar (217) is fixedly set at the bottom of the inner wall of the operating chamber (214), and a magnetic block is provided on the side of the inner wall of the operating chamber (214) near the compression spring (219). The position of the magnetic block corresponds one-to-one with the position of the electromagnet (221). The cooperation between the electromagnet (221) and the magnetic block can make the compression spring (219) be in a state of contraction or extension. A compression spring (220) is provided between the two horizontal bars (217). An electromagnet (222) and a magnetic block are provided between the two horizontal bars (217). The cooperation between the electromagnet (222) and the magnetic block can control the distance between the two horizontal bars (217) to shorten or lengthen.

2. A crop harvester suitable for land operations according to claim 1, characterized in that: The driving mechanism is located above the walking mechanism. The driving mechanism includes a driver's cab (101). The driver's cab (101) is equipped with a control panel (103) inside. The driver's cab (101) can control the walking mechanism, the cutting unit (2) and the conveying unit through the control panel (103). A sunshade (102) is provided above the driver's cab (101).

3. A crop harvester suitable for land operations according to claim 1, characterized in that: A support rod (207) is fixedly provided on one side of the connecting plate (201), and a comb plate (206) is provided on one side of the support rod (207). The comb plate (206) is fixedly connected to one side of the support rod (207), and the comb plate (206) can be paired with the roots of crops for combing.

4. A crop harvester suitable for land operations according to claim 1, characterized in that: The conveying unit is located inside the bucket (210). The conveying unit includes a conveying roller (205). The outer surface of the conveying roller (205) is provided with auger blades. The conveying roller (205) is rotatably connected to the left and right sides of the inner wall of the bucket (210). The outer side of the bucket (210) is provided with a drive chamber (202), and the drive chamber (202) is provided with a rotary drive device. The output end of the rotary drive device passes through the drive chamber (202) and is fixedly connected to the end of the conveying roller (205). The rotary drive device can drive the conveying roller (205) to rotate inside the bucket (210).

5. A crop harvester suitable for land operations according to claim 4, characterized in that: When the conveying roller (205) is rotating, it can work with the auger blades on its outer side to cut the combed crop roots and stems; A fixing rod (215) is provided above the bucket (210). The end of the fixing rod (215) away from the bucket (210) is movably connected to the rotating shaft (208). There are at least two fixing rods (215), and the two fixing rods (215) are located on the left and right sides of the bucket (210) respectively. Both fixing rods (215) are rotatably connected to the left and right ends of the rotating shaft (208). The two fixing rods (215) are rotatably connected to the connecting plate (201) through the rotating shaft (208).

6. A crop harvester suitable for land operations according to claim 3, characterized in that: The number of connecting discs (201) is at least two, and the two connecting discs (201) are symmetrically arranged on the left and right sides of the inner wall of the bucket (210). The number of support rods (207) and comb plates (206) is set to multiple, and each support rod (207) and comb plate (206) is arranged in the area between the two connecting discs (201) along the outer circumference of the connecting disc (201).

7. A crop harvester suitable for land operations according to claim 1, characterized in that: The cleaning brush (223) is located above the operating chamber (214) at the end away from the sliding tube (216). The cleaning brush (223) is composed of multiple brushes twisted together. The cleaning brush (223) is provided with a sliding plate at the end near the sliding tube (216). A return spring is provided between the sliding plate and the bottom of the inner wall of the sliding tube (216). When the return spring is in a stretched state, the cleaning brush (223) moves away from the sliding tube (216).

8. A crop harvester suitable for land operations according to claim 1, characterized in that: When the compression spring (219) is in the extended state, the two horizontal bars (217) move away from the sliding tube (216) along the inner wall of the operating chamber (214). When the compression spring (219) is in the contracted state, the two horizontal bars (217) move closer to the sliding tube (216) along the inner wall of the operating chamber (214). The left and right ends of the compression spring (220) are fixedly connected to the opposite surfaces of the two horizontal bars (217), and a sliding groove rod (211) is provided between the two horizontal bars (217). The left and right ends of the sliding groove rod (211) pass through the two horizontal bars (217), and the outer surfaces of the left and right ends of the sliding groove rod (211) are slidably connected to the interior of the two horizontal bars (217).

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