A kind of ear stem and harvesting platform

Abstract

The present invention relates to the technical field of agricultural machinery, and more specifically, to a combined ear and stalk harvesting platform. The platform comprises a harvesting platform frame, a feeding system and an ear pulling and plucking unit mounted on the harvesting platform frame, the feeding system comprising a clamping chain, the ear pulling and plucking unit comprising a pair of feeding rollers mounted on the front side of the top of a stalk pulling and plucking gear housing, and a pair of ear and stalk plucking rollers corresponding to the feeding rollers and mounted on the rear side of the top of the stalk pulling and plucking gear housing. The upper portions of the feeding rollers are connected to clamping sprockets that cooperate with the clamping chain. The feeding system also comprises a straw feeding mechanism and a stalk clamping mechanism. The straw feeding mechanism comprises a straw frame and a straw chain rotatably mounted thereon. The stalk clamping mechanism comprises a clamping frame rotatably mounted on the clamping frame, the rear end of the straw chain being transmission-connected to the front end of the clamping chain, and straw fingers for plucking the straw are provided on the outer side of the straw chain, thereby improving conveying stability and harvesting efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to an ear and stalk harvesting platform. Background Art

[0002] The existing corn harvester is equipped with a clamping chain and a stem pulling roller arranged in sequence from front to back. Feeding and clamping are mostly carried out on the left and right sides of the conveying channel using a clamping chain respectively. The stem pulling roller is connected to the ear picking roller, and a clamping sprocket for driving the clamping chain is installed between the stem pulling roller and the ear picking roller.

[0003] When in use, the two clamping sprockets drive the corn stalks to move backward. When the corn stalks reach the clamping and ear-picking rollers, the stem-pulling rollers and the ear-picking rollers continue to pull the corn stalks and pick the corn ears.

[0004] The above technical solution has the following disadvantages: 1. This conveying method has low clamping stability, making stalks prone to blockage during transport. Cleaning is laborious and time-consuming, resulting in low harvesting efficiency, increased harvester failure rate, and increased maintenance costs. 2. The stalk pulling roller and the clamping sprocket are coaxially arranged. When the corn stalks reach the rear of the stalk pulling roller, they are easily pulled by the clamping chain around the stalk pulling roller and then moving forward again, which can easily cause the stalk pulling roller and the clamping chain to become entangled in leaf debris. Summary of the Invention

[0005] The purpose of the present invention is to provide an ear and stalk harvesting platform to address the above problems, thereby improving transportation stability and harvesting efficiency.

[0006] To achieve the above-mentioned purpose, the present invention discloses a harvesting platform for both ears and stems, which includes a harvesting platform frame on which a feeding system and a stem pulling and ear picking unit are installed. The feeding system includes a clamping chain. The stem pulling and ear picking unit includes a pair of feeding rollers installed on the front side of the top of a stem pulling and ear picking gear box and a pair of ear picking and stem pulling rollers corresponding to the feeding rollers and installed on the rear side of the top of the stem pulling and ear picking gear box. The upper parts of the feeding rollers are connected with clamping sprockets matched with the clamping chain. The feeding system also includes a straw feeding mechanism and a straw clamping mechanism. The straw feeding mechanism includes a straw frame and a straw chain rotatably installed thereon. The straw clamping mechanism includes a clamping frame. The clamping chain is rotatably installed on the clamping frame. The rear end of the straw chain and the front end of the clamping chain are transmission-connected. A straw finger for moving the straw is provided on the outside of the straw chain. The straw finger is perpendicular to the straw outer chain plate, the straw inner chain plate and the conveying direction of the straw.

[0007] In the existing technology, the feeding and clamping of the stalks by the harvesting platform are mostly carried out by using a conveyor chain on the left and right sides of the conveying channel. However, this conveying method has low clamping stability and is prone to blockage during the process of conveying the stalks. Cleaning is troublesome and laborious, resulting in low harvesting efficiency, increased failure rate of the harvester, and increased maintenance costs.

[0008] A conveyor chain is divided into two parts: a straw-pushing chain for feeding at the front and a clamping chain for clamping at the rear. The straw-pushing chain feeds the stalks to the clamping chain, which then transports the stalks backwards, thereby enhancing the stability of the stalk transportation and effectively reducing the blockage that occurs during the stalk transportation process. In addition, the setting of the straw-pushing fingers can push the straw into the clamping channel, making it easier for the clamping chain to clamp the stalks, thereby enhancing the transportation stability and harvesting efficiency.

[0009] The clamping chain is wrapped around a clamping sprocket located in front of the stalk-pulling roller. During operation, the two stalk-pulling rollers rotate in opposite directions, as do the two feed rollers. The clamping chain drives the corn stalks backward. When the corn stalks reach the clamping sprockets, the stalk-pulling rollers and ear-removing rollers continue pulling the stalks and remove the ears. The clamping chain then continues to rotate, completing the delivery of the next stalk. This prevents corn stalks from bypassing the stalk-pulling rollers under the clamping chain, reducing the chance of stalk-pulling roller failure due to entanglement in broken leaves and improving production efficiency.

[0010] Preferably, the upper and lower ends of the plowing fingers are respectively fixedly connected to two opposite outer chain plates or two inner chain plates on the plowing chain, thereby simplifying the structure of the plowing chain.

[0011] Preferably, the plowing finger is integrally formed with two plowing outer chain plates or two plowing inner chain plates connecting the upper and lower ends thereof, thereby enhancing the stability of the plowing chain structure and further increasing the stability of the stalk feeding.

[0012] Preferably, the plowing fingers are arranged on the outer plowing chain plates and one plowing finger is arranged for every pair of outer plowing chain plates, or the plowing fingers are arranged on the inner plowing chain plates and one plowing finger is arranged for every pair of inner plowing chain plates.

[0013] Preferably, a plurality of gear-shaped clamping teeth are provided on the clamping inner chain plate and the clamping outer chain plate at intervals on the outside of the clamping chain. The gear-shaped clamping teeth can enhance the clamping stability of the stems and further prevent blockage during the transportation of the stems.

[0014] Preferably, a rotating tower wheel is provided at the junction of the plowing frame and the clamping frame, and the front end of the clamping chain and the rear end of the plowing chain are both mounted on the rotating tower wheel. The clamping chain transmits power to the plowing chain through the rotating tower wheel.

[0015] Preferably, a reel sprocket is provided on the reeling machine frame.

[0016] Preferably, a feeding channel is formed between every two straw feeding mechanisms, and a clamping channel is formed between every two stem clamping mechanisms. The left and right opening widths at the front end of the clamping channel are larger than the left and right opening widths in the middle and rear parts of the clamping channel, so as to facilitate the smooth entry of the stems from the feeding channel into the clamping channel.

[0017] Preferably, the left and right clamping frames between two adjacent clamping channels correspond to a reed frame.

[0018] In the prior art, a reed frame is connected to the front of each of the left and right clamping frames between two adjacent clamping channels, resulting in poor structural stability.

[0019] The reed-pulling frames in front of the left and right clamping frames between two adjacent clamping channels are arranged as an integrated type, thereby enhancing the stability of the structure.

[0020] Preferably, the system further includes two end reel racks located on the left and right sides of all the clamping racks, the rear ends of the two end reel racks being rotatably connected to the front ends of the two clamping racks located on the far left and right sides, respectively, forming a feeding channel between the end reel racks and the adjacent reel racks. The end reel racks are rotatably connected to the front ends of the clamping racks, facilitating adjustment of the cutting pair of the corn harvesting header, thereby meeting the harvesting requirements of corn at different planting spacings.

[0021] Preferably, it further comprises an adjusting rod and a fixed support, a mounting seat is provided on the end reed machine frame, and both ends of the adjusting rod are hinged on the mounting seat and the support respectively.

[0022] Preferably, the adjustment rod comprises two steel tubes at either end and a threaded rod in the middle. Two fixing nuts with opposite threaded directions are fixedly connected to the ends of the two steel tubes near the threaded rods. The ends of the threaded rods are provided with threads that match the threads of the two fixing nuts. The ends of the threaded rods extend through the two fixing nuts and into the two steel tubes. By rotating the threaded rods to adjust the length of the adjustment rods, the degree of opening and closing between the end reel frame and the adjacent reel frame can be adjusted, thereby adjusting the cutting pair of the corn harvesting header. This is convenient to operate and has a simple structure.

[0023] Preferably, two movable nuts with the same threaded direction as the two fixed nuts are provided on the threaded rod near the two fixed nuts, respectively, to secure the adjustment rod and ensure stability between the threaded rod and the fixed nuts at both ends. A slot is provided in the middle of the threaded rod to facilitate wrench adjustment, i.e., the threads on the threaded rod at both ends of the slot have opposite threaded directions.

[0024] Preferably, the clamping frame is provided with a tensioning wheel assembly, which is located on the side of the clamping frame away from the clamping channel. Of the two tensioning wheel assemblies between the left and right adjacent clamping channels, one tensioning wheel assembly is installed further back than the other. This prevents the two opposing tensioning wheel assemblies from interfering with each other during tension adjustment, thereby increasing the tensioning stroke.

[0025] Preferably, the tensioning wheel assembly includes a clamping tensioning wheel and a clamping pressure wheel, the clamping tensioning wheel and the clamping pressure wheel are connected via a connecting plate, the clamping pressure wheel is rotatably mounted on the clamping frame, and the clamping tensioning wheel is hinged to the clamping frame via an adjusting device.

[0026] Preferably, a front mounting shaft and a rear mounting shaft are provided at the front end portion of the clamping frame from front to rear, and the connection between the clamping frame and the reed frame connected thereto and the end reed frame is provided with a tower wheel mounting shaft that is in a straight line with the front mounting shaft and the rear mounting shaft, and the front mounting shaft, the rear mounting shaft and the tower wheel mounting shaft are connected by a strip plate, which can increase the installation strength between the clamping frame and the reed frame connected thereto or the end reed frame.

[0027] Preferably, in the two tensioning wheel assemblies between the two adjacent left and right clamping channels, the adjusting device of one tensioning wheel assembly is hinged to the clamping frame through a front mounting shaft, and the adjusting device of the other tensioning wheel assembly is hinged to the clamping frame through a rear mounting shaft.

[0028] Preferably, the front end of the end reel frame is connected to a reel tensioning wheel through an elastic adjustment device, and the left and right ends of the front end of the reel frame are respectively connected to the two reel tensioning wheels through the elastic adjustment device.

[0029] Preferably, a plurality of chain positioning mechanisms cooperating with the clamping chains are respectively and spaced apart on adjacent sides of the two clamping frames, and the chain positioning mechanisms include anti-slip wheels and limiting wheels arranged on the clamping frames.

[0030] At present, the stalk clamping device is usually installed on the harvester's cutting table frame. During the operation of the device, the increase in the amount of stalks fed will increase the gap between the clamping chains working with each other, resulting in poor clamping effect of the clamping chain and slippage. At the same time, the failure rate of the existing clamping and conveying mechanism is high, and a lot of manpower and material resources will be wasted during the maintenance process.

[0031] By setting multiple anti-slip wheels and limiting wheels on the two clamping frames, the stems are transported in an S-shaped path in the clamping channel, which can effectively ensure the clamping effect during the stem transportation process and avoid slipping between the stems and the clamping chain during transportation.

[0032] Preferably, the anti-skid wheels and the limiting wheels are spaced apart in the front-to-back direction of the clamping frame, and the spacing between the anti-skid wheels and the side of the clamping frame is greater than the distance between the limiting wheels and the side of the clamping frame. The limiting wheels close to the side of the clamping frame can facilitate support of the clamping chain, while the anti-skid wheels away from the side of the clamping frame can facilitate the formation of a depression in the clamping chain when the stem enters, thereby playing an anti-skid role during the process of clamping and conveying the stem.

[0033] Preferably, the anti-slip wheels and the limiting wheels on the two clamping frames are symmetrically arranged along the clamping channel formed by the two clamping frames, and the central axes of the anti-slip wheels and the limiting wheels are located in the same vertical plane.

[0034] Preferably, the distance between the rotating tower pulley and the chain positioning mechanism is greater than the distance between the anti-skid wheel and the limiting wheel, and bolts for fixing the clamping frame are provided between the anti-skid wheel and the limiting wheel near the clamping sprocket. The chain positioning mechanism is spaced a certain distance from the rotating tower pulley to facilitate the entry of the stems into the clamping channel, and the bolts provided between the anti-skid wheel and the limiting wheel at the end of the clamping channel reduce the distance between the anti-skid wheel and the limiting wheel, thereby facilitating the conveyance of the stems and preventing the stems from getting stuck at the end of the clamping channel.

[0035] Preferably, the diameter of the anti-slip wheel is smaller than the diameter of the limiting wheel.

[0036] Preferably, it also includes a straw divider, and a straw support rack hinged on the harvesting table frame is provided above the straw divider, and a plurality of straw support rods are provided on the straw support rack above the straw divider, and the distance between the front ends of two adjacent straw support rods is adapted to the distance between two adjacent straw dividers below the straw support rods.

[0037] At present, the straw supporting device is usually installed on the harvester's header frame, but most of the straw supporting devices are bent and processed as a whole and there is a problem that the straw dividers on both sides cannot be adjusted left and right, so the adaptability is poor when harvesting crops with different row spacings; since the existing straw dividers have no locking mechanism, there is a problem of large vibration during harvesting. At the same time, the straw dividers that are bent and formed as a whole also have problems such as large size and high transportation cost. Moreover, when the staff conducts maintenance, the disassembly and assembly process is also relatively cumbersome, which wastes a lot of manpower and material resources.

[0038] It is convenient for transportation and maintenance. By designing the straw divider and the straw support rod as a split structure, the device has low production and transportation costs and is easy and quick to open. The straw divider is clamped on the feeding system through a clamping mechanism, which can effectively ensure the stability of the straw divider during harvesting. The straw support rod hinged above the straw divider can adapt to the harvesting of crops with different growth conditions.

[0039] Preferably, the straw divider is a shell formed by multiple covering plates, which is closed on all sides and open at the bottom. The straw divider includes a protective shell and a straw dividing shell connected to the front end of the protective shell and clamped on the feeding system.

[0040] Preferably, the protective shell includes a first upper cover plate arranged horizontally, first side cover plates arranged obliquely on the left and right sides of the first upper cover plate, and a rear cover plate vertically connected to the rear end of the first upper cover plate and connected to the first side cover plates on the left and right sides. The first side cover plate is arranged obliquely toward the outside of the first upper cover plate, and the plate body near the lower end edge of the first side cover plate is arranged in the vertical direction and perpendicular to the plane where the first upper cover plate is located. The straw dividing shell includes a second upper cover plate arranged at the front end of the first upper cover plate and obliquely downward, the front end of the second upper cover plate is connected to a rectangular plate arranged in the vertical direction, the left and right sides of the second cover plate are provided with second side cover plates connected to the first side cover plate, and the lower bottom end of the second oblique cover plate is flush with the lower bottom end of the rectangular plate. By configuring the straw divider into a semi-conical shell, it is convenient to quickly separate the straw during operation, and the rectangular plate arranged at the front end of the straw divider can cooperate with the straw dividing tensioning wheel arranged at the front end of the straw dividing frame. The straw dividing tensioning wheel can push away the stems at the end, allowing the stems to quickly enter the feeding channel to avoid being knocked down.

[0041] A connecting hinge is provided on the main body of the protective shell near the rear end, and a clamping mechanism connected to the straw dipper frame is provided in the straw dipper shell; the rear end of the straw dipper is hinged to the clamping frame through the connecting hinge, and the front part of the straw dipper is clamped on the straw dipper frame through the clamping mechanism, which makes it convenient to disassemble and assemble the entire straw dipper and facilitates inspection and maintenance by the staff.

[0042] Preferably, the clamping mechanism includes a clamping rod horizontally arranged in the straw dividing housing and a clamping seat arranged on the straw digger frame, the clamping seat includes a connecting base fixed to the straw digger frame and a buckle fixed to one side of the connecting base and cooperating with the clamping rod, the clamping rod is provided with a positioning plate, the upper end surface of the connecting base is provided with a clamping groove cooperating with the positioning plate, and the clamping opening of the buckle is vertically upward and extends out of the upper end surface of the connecting base. By clamping the positioning plate and the clamping rod into the clamping groove and the buckle respectively, the disassembly and assembly of the straw divider is made faster and more convenient, and the supporting and limiting function is provided to effectively prevent the straw divider from swinging up and down.

[0043] Preferably, the straw dividers near the left and right ends of the harvester frame include a protective shell hinged to the side panels of the harvester frame and a straw dividing shell hinged to the front end of the protective shell and clamped to the front end of the feeding system. The left and right side panels of the straw dividing shell are provided with rubber plates, which cover the gap between the protective shell and the straw dividing shell. The straw-dividing frames at the left and right ends of the harvester frame are adjustable. The front ends of the straw dividers at the left and right ends of the harvester frame are set as hinged structures, which can fully cooperate with the end straw-dividing frames, making it convenient for straw at the left and right ends of the harvester frame to enter the feeding channel of the harvester.

[0044] Preferably, the rear end face of the crop divider is provided with a guard plate, the lower bottom edge of the guard plate is flush with the lower bottom edge of the rear end face of the crop divider, and the outer end edges of the upper guard plates of two adjacent crop dividers are in contact with each other. By cooperating with the upper guard plates of two adjacent crop dividers, the harvested stalks can be prevented from falling.

[0045] Preferably, hinged seats are provided on the left and right side panels of the harvesting platform frame, and the ends of the crop support frame are respectively hinged to the hinged seats of the left and right side panels of the harvesting platform frame. The hinged seats include support seats fixed to the inner end surfaces of the side panels of the harvesting platform frame, and two hinged plates are provided on the support seats at intervals. The two hinged plates are provided with corresponding hinge holes. The crop support frame is a rod body with downward bending at both ends, and through holes corresponding to the hinge holes are provided at both ends of the rod body. Bolts for hingedly connecting the two are installed in the through holes and the hinge holes. The crop support frame is a rod body with downward bending at both ends, so that the crop support frame can have a certain height and facilitate the installation of the crop support pole.

[0046] Preferably, the straw support rod is a rod with a downwardly curved front end and a front end resting on the top surface of the straw divider. The rear end of the straw support rod is fixedly connected to the straw support frame. The arrangement direction of the straw support rod is adapted to the clamping channel of the harvesting table frame. A straw support limiting rod is provided between two adjacent straw support rods located directly above the clamping channel. The straw support rod with a curved front end cooperates with the straw divider to prevent the straw from falling over during harvesting and facilitate the straw from entering the input channel during cutting.

[0047] Preferably, the ear picking and stem pulling roller comprises an upper ear picking roller and a lower stem pulling roller, wherein the top of one of the ear picking rollers is transmission-connected to a reversing gear box that provides power thereto;

[0048] Two vertically arranged stem pulling rollers are rotatably connected to the stem pulling and ear picking gear box, and the stem pulling rollers are installed on the stem pulling rollers. The two stem pulling rollers are set one on the left and one on the right. The stem pulling and ear picking gear box is also rotatably connected to two vertically arranged feeding rollers located in front of the stem pulling rollers. The feeding rollers are installed on the feeding rollers. The two feeding rollers are set one on the left and one on the right. The two stem pulling rollers are transmission connected, the two feeding rollers are transmission connected, and one of the stem pulling rollers is transmission connected to one of the feed rollers.

[0049] Preferably, one of the stem pulling roller shafts is equipped with a first stem pulling roller gear and a second stem pulling roller gear, the other stem pulling roller shaft is equipped with a third stem pulling roller gear meshing with the second stem pulling roller gear, one of the feeding roller shafts is equipped with a second feeding roller gear and a first feeding roller gear meshing with the first stem pulling roller gear, the other feeding roller shaft is equipped with a third feeding roller gear meshing with the second feeding roller gear, and the stem pulling roller shaft equipped with the first stem pulling roller gear is diagonally arranged to the feeding roller shaft equipped with the first feeding roller gear. During operation, the reversing gearbox of the ear-picking roller transmits power to the first ear-picking roller, driving the first ear-picking roller and the first stalk-pulling roller shaft to rotate. The first stalk-pulling roller shaft drives the second stalk-pulling roller shaft via the second and third stalk-pulling roller gears. The first stalk-pulling roller shaft drives the first feed roller shaft via the first stalk-pulling roller gear and the first feed roller gear. The first feed roller shaft drives the second feed roller shaft via the second and third feed roller gears. This compact structure provides reliable transmission.

[0050] Preferably, the first stalk pulling roller gear and the first feed roller gear are located in the lower inner portion of the stalk pulling and ear picking gear housing, the second stalk pulling roller gear and the third stalk pulling roller gear are located in the upper inner portion of the stalk pulling and ear picking gear housing, and the second feed roller gear and the third feed roller gear are located in the middle inner portion of the stalk pulling and ear picking gear housing. When in use, the gears in the stalk pulling and ear picking gear housing are arranged in three layers, reducing the risk of mutual interference and improving space utilization. This structure is compact and the transmission is reliable.

[0051] Preferably, the height of the upper end of the feed roller shaft is greater than that of the upper end of the stalk pulling roller shaft. When in use, the feed roller shaft is used to mount the feed roller. Since the upper end of the feed roller is suspended, the longer length of the feed roller shaft is beneficial to improving the stability of the feed roller. The stalk pulling roller shaft is used to mount the stalk pulling roller and the ear picking roller. Since the upper end of the ear picking roller is suspended, the stalk pulling roller shaft can be shorter.

[0052] Preferably, a feeding roller sleeve is mounted on the stem pulling and ear picking gear housing, and the feeding roller shaft is rotatably connected to the upper end of the feeding roller sleeve. When in use, the feeding roller is sleeved on the feeding roller shaft, and the feeding roller sleeve can improve the stability of the feeding roller shaft and the feeding roller.

[0053] Preferably, the upper end of the stem pulling roller has a spline shaft structure, and the upper end of the feeding roller has a spline shaft structure, which is convenient for installation when in use.

[0054] Preferably, the upper end of the gear box body for pulling the stems and picking the ears is open, and a gear box cover for pulling the stems and picking the ears is detachably installed on the upper end of the gear box body.

[0055] Preferably, the lower end of the stem pulling roller is rotatably connected to the bottom of the stem pulling and ear picking gear box, the stem pulling roller passes through the stem pulling and ear picking gear box cover and is rotatably connected to the stem pulling and ear picking gear box cover, the lower end of the feed roller is rotatably connected to the bottom of the stem pulling and ear picking gear box, the feed roller passes through the stem pulling and ear picking gear box cover and is rotatably connected to the stem pulling and ear picking gear box cover, which facilitates the manufacture and installation of the stem pulling and ear picking gear box.

[0056] Preferably, the distance between the central axes of the two pulling rollers is smaller than the distance between the central axes of the two feeding rollers; and the width of the gap between the two pulling rollers is smaller than the width of the gap between the two feeding rollers, so as to facilitate the transportation of corn stalks during use.

[0057] Preferably, the shape of the gear box body of the stem pulling and ear picking gear box body is rectangular, and the four corners of the gear box body are rounded, so as to facilitate the installation of each gear.

[0058] Preferably, the feed roller side portion is connected with several feed ridges, which extend in the vertical direction and have several convex teeth on the outside of the feed ridge. During use, as the feed roller rotates, the feed ridges move the corn stalks to the rear of the feed roller.

[0059] Preferably, the diameter of the upper end of the pulling roller is larger than the diameter of the lower end thereof, and the side of the pulling roller is connected to a plurality of pulling ridges, which extend in a vertical direction and are arranged vertically on the outer sides of the pulling ridges. When in use, the gap between the lower ends of the two pulling rollers is large, which facilitates the feeding of corn stalks and reduces blockage.

[0060] Preferably, the cross-section of the side portion of the ear picking roller is octagonal, and the side portion of the ear picking roller is connected to a plurality of first ear picking ridges, the first ear picking ridges extending in a vertical direction. When in use, as the ear picking roller rotates, the first ear picking ridges push the corn stalks to the rear of the ear picking roller, thereby facilitating separation of the corn ears from the corn stalks.

[0061] Preferably, the cross-section of the first ear picking ridge is circular. Preferably, the first ear picking ridge is made of threaded round steel to increase the friction between the ear picking roller and the corn stalks. The first ear picking ridge pushes the corn stalks to the rear of the ear picking roller, making it easier to separate the corn ears from the corn stalks.

[0062] Preferably, the number of the first ear picking ridges is four, and the four first ear picking ridges are arranged in a one-to-one correspondence with the four corners of the side of the ear picking roller. When in use, the first ear picking ridges cooperate with the ear picking roller to push the corn stalks left and right, thereby conveniently separating the corn ears from the corn stalks.

[0063] Preferably, the cross-section of the side portion of the ear picking roller is circular, and the side portion of the ear picking roller is connected to a plurality of first ear picking ridges, each of which is U-shaped. The open end of the ear picking roller faces the direction of rotation of the ear picking roller, and the plurality of first ear picking ridges are spirally distributed. During use, as the ear picking roller rotates, the first ear picking ridges push the corn stalks to the rear of the ear picking roller, thereby facilitating separation of the corn ears from the corn stalks.

[0064] Preferably, the length of the lower side of the first ear picking ridge is greater than the length of the upper side of the first ear picking ridge. When in use, the friction between the ear picking roller and the corn stalk is increased, and the first ear picking ridge pushes the corn stalk to the rear of the ear picking roller, making it easier to separate the corn ears from the corn stalk.

[0065] Preferably, the lower side end of the first ear picking ridge is tilted downward to increase the friction between the ear picking roller and the corn stalks during use, so that the first ear picking ridge pushes the corn stalks to the rear of the ear picking roller, making it easier to separate the corn ears from the corn stalks.

[0066] Preferably, the cross-section of the side portion of the ear picking roller is circular, and the side portion of the ear picking roller is connected to a second spiral ear picking ridge. When in use, as the ear picking roller rotates, the second ear picking ridge pushes the corn stalks to the rear of the ear picking roller, making it easier to separate the corn ears from the corn stalks.

[0067] Preferably, the side of the ear picking roller is further connected to a plurality of first ear picking ridges, which extend in a vertical direction and have notches for the passage of second ear picking ridges. When in use, the friction between the ear picking roller and the corn stalks is increased, and the first and second ear picking ridges push the corn stalks to the rear of the ear picking roller, making it easier to separate the corn ears from the corn stalks.

[0068] Preferably, the cross-section of the first and second ear-picking ridges is circular. Preferably, the first ear-picking ridge is made of threaded round steel to increase the friction between the ear-picking roller and the corn stalks. The first and second ear-picking ridges push the corn stalks to the rear of the ear-picking roller, making it easier to separate the corn ears from the corn stalks.

[0069] Preferably, the stem pulling roller and the ear picking roller are hollow structures, which are convenient for manufacturing and installation.

[0070] Preferably, the lower end of the stem pulling roller has a spline groove structure, and the upper end of the ear picking roller has a spline shaft structure, which is convenient for manufacturing and installation.

[0071] Preferably, a cleaning roller is rotatably mounted on the cutting table frame, the cleaning roller is located below the feeding system, and two sets of spiral scrapers are provided on the outer wall of the cleaning roller, which rotate in opposite directions and extend spirally along the axial direction of the cleaning roller.

[0072] The dust removal roller is installed on the rear side of the lower cutter, the front side of the cob conveyor belt, and the lower side of the straw chain. When the corn stalks are cut by the lower cutter, they are transported backwards via the straw chain. During this process, the dust removal roller driven by the power input mechanism rotates continuously and comes into contact with the straw. The spiral scraper on the dust removal roller can clean the dirt and weeds stuck to the lower end of the corn stalks. The dust removal roller is equipped with two sets of spiral scrapers with opposite rotation directions, which can push the weeds on the straw to both sides to ensure its own cleaning and prevent the weeder from being entangled in weeds.

[0073] To further enhance the cleaning capability of the roller, a transverse scraper is installed on its outer wall. The scraper extends along the roller's axis. The scraper removes dirt stuck to the straw, effectively cleaning it.

[0074] Preferably, a plurality of transverse rib scrapers are provided, and the plurality of transverse rib scrapers are arranged at intervals in the circumferential direction around the impurity removal roller, which can further improve the cleaning ability of the impurity removal roller for sticky mud.

[0075] Preferably, the spiral scraper and / or the transverse rib scraper are provided with teeth at one end away from the weed removal roller. The teeth can pull the weeds and facilitate pulling the weeds entangled on the weed removal roller off.

[0076] Regarding the arrangement of the teeth, the teeth are arranged in a wave shape, are triangular in shape, and are provided in plurality.

[0077] To prevent weeds from tangling on the cleaning roller, a fixed blade is installed on the header frame, located behind the cleaning roller and spaced 2 to 3 mm from the roller. The cleaning roller, when used with the fixed blade, prevents weeds from tangling on the roller and ensures proper cleaning.

[0078] Regarding the specific structure of the fixed knife, the fixed knife extends along the axial direction of the impurity removing roller, and the blade of the fixed knife faces the impurity removing roller.

[0079] The spiral scraper's structure consists of multiple blade assemblies, which are arranged end-to-end in a spiral pattern. The blade assemblies meet at the intersection of the two sets of spiral scrapers. This arrangement facilitates the formation of the spiral scraper. If the spiral scraper is damaged, only the damaged blade section needs to be replaced, making maintenance of the scraper roller easier.

[0080] Regarding the installation structure of the debris removal roller, installation shafts are provided at both ends of the debris removal roller, and the debris removal roller is rotatably installed on the cutting table frame through the installation shafts.

[0081] In summary, the beneficial effects of the present invention are as follows: 1. A conveying chain is divided into two parts, namely a straw pulling chain for feeding in the front and a clamping chain for clamping in the rear. The straw pulling chain feeds the stalks to the clamping chain, and the clamping chain then conveys the stalks backward, thereby enhancing the stability of stalk conveying and effectively reducing the blockage that occurs during stalk conveying. In addition, the arrangement of the straw pulling fingers can pull the stalks into the clamping channel, making it easier for the clamping chain to clamp the stalks, thereby enhancing conveying stability and harvesting efficiency. 2. The clamping chain is wound around a clamping sprocket, which is located in front of the stalk pulling roller. When in use, the two stalk pulling rollers rotate in opposite directions, and the two feeding rollers rotate in opposite directions. The clamping chain drives the corn stalks backward. When the corn stalks reach the clamping sprocket, the stalk pulling roller and the ear picking roller continue to pull the corn stalks and remove the corn ears. The clamping chain continues to rotate to complete the conveying of the next corn stalk. The corn stalks will not go around the pulling rollers due to the drive of the clamping chain, which reduces the probability of the pulling rollers malfunctioning due to being entangled by broken leaves and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] Figure 1 This is a structural schematic diagram of an ear and stem harvesting platform of the present invention;

[0083] Figure 2 This is a schematic diagram of the top view of the structure of an ear and stem harvesting platform of the present invention;

[0084] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of the part A in the middle;

[0085] Figure 4 yes Figure 2 Schematic diagram of the enlarged structure of the part B in the middle;

[0086] Figure 5 It is a structural schematic diagram of a straw feeding mechanism and a stalk clamping mechanism in an ear-stem combined harvesting platform of the present invention;

[0087] Figure 6 yes Figure 5 Schematic diagram of the paths of the middle straw chain and the clamping chain;

[0088] Figure 7 This is a schematic structural diagram of a straw chain in a combined ear and stem harvesting platform of the present invention;

[0089] Figure 8 This is a schematic structural diagram of a clamping chain in an ear and stem harvesting platform of the present invention;

[0090] Figure 9 It is a structural schematic diagram of a stalk feeding channel and a clamping channel in a combined ear-stalk harvester of the present invention;

[0091] Figure 10This is a schematic diagram of the front structure of a header frame and a straw divider in a harvester of both ears and stems of the present invention;

[0092] Figure 11 This is a schematic diagram of the back structure of the header frame and the divider in the present invention, a stem and ear harvester;

[0093] Figure 12 This is a schematic structural diagram of a grain divider for harvesting both spikes and stems of the present invention;

[0094] Figure 13 This is a structural schematic diagram of a card-mounted mounting seat in an ear-stem and harvesting platform of the present invention;

[0095] Figure 14 This is a structural schematic diagram of a hinged seat in an ear and stem harvesting platform of the present invention;

[0096] Figure 15 This is a structural schematic diagram of an ear and stem harvesting platform and a clamping chain of the present invention;

[0097] Figure 16 It is a schematic diagram of the three-dimensional structure of an ear and stem harvesting platform of the present invention;

[0098] Figure 17 It is a front view structural schematic diagram of an ear and stem harvesting platform of the present invention;

[0099] Figure 18 yes Figure 17 Schematic diagram of the structure of the middle section CC;

[0100] Figure 19 yes Figure 17 Schematic diagram of the top view structure;

[0101] Figure 20 yes Figure 17 Schematic diagram of the structure of the middle section DD;

[0102] Figure 21 This is a schematic diagram of the three-dimensional structure of a stalk pulling and ear picking gearbox in an ear stalk and ear harvesting platform of the present invention;

[0103] Figure 22 This is a front view structural diagram of a stalk pulling and ear picking gearbox in an ear stalk and ear harvesting platform of the present invention;

[0104] Figure 23 This is a schematic top view of the structure of a stalk pulling and ear picking gearbox in an ear stalk and ear harvesting platform of the present invention;

[0105] Figure 24 yes Figure 23 Schematic diagram of the structure of the middle section EE;

[0106] Figure 25 yes Figure 23 Schematic diagram of the structure of the FF in the middle section;

[0107] Figure 26 This is a schematic diagram of the three-dimensional structure of the interior of a stalk pulling and ear picking gear box in an ear stalk and ear harvesting platform of the present invention;

[0108] Figure 27 This is a front view structural diagram of the interior of a stalk pulling and ear picking gearbox in an ear stalk and ear harvesting platform of the present invention;

[0109] Figure 28 This is a schematic top view of the internal structure of a stalk pulling and ear picking gear box in an ear stalk and ear harvesting platform of the present invention;

[0110] Figure 29 yes Figure 28 Schematic diagram of the structure of the middle section GG;

[0111] Figure 30 yes Figure 28 Schematic diagram of the structure of the middle section HH;

[0112] Figure 31 This is a schematic diagram of the three-dimensional structure of an ear-picking roller and a stem-pulling roller in one embodiment of an ear-stalk and stem-combining harvesting platform of the present invention;

[0113] Figure 32 This is a schematic cross-sectional view of an ear picking roller in one embodiment of an ear and stalk harvesting platform of the present invention;

[0114] Figure 33 This is a schematic cross-sectional view of a stem pulling roller in one embodiment of an ear and stem harvesting platform of the present invention;

[0115] Figure 34 It is a schematic diagram of the three-dimensional structure of an ear-picking roller and a stem-pulling roller in another embodiment of an ear-stalk and stem-combining harvesting platform of the present invention;

[0116] Figure 35 It is a schematic cross-sectional structural diagram of an ear picking roller in another embodiment of an ear and stalk harvesting platform of the present invention;

[0117] Figure 36 It is a schematic cross-sectional structure diagram of a stem pulling roller in another embodiment of an ear and stem harvesting platform of the present invention;

[0118] Figure 37 It is a schematic diagram of the three-dimensional structure of an ear-picking roller and a stem-pulling roller in another embodiment of an ear-stalk and stem harvesting platform of the present invention;

[0119] Figure 38 It is a schematic cross-sectional structural diagram of an ear picking roller in another embodiment of an ear and stalk harvesting platform of the present invention;

[0120] Figure 39 The present invention is a spike stem and harvesting station and another embodiment of the pull stem roller schematic cross-sectional structure;

[0121] Figure 40 This is a structural schematic diagram of a spiral scraper in one embodiment of an ear and stalk harvesting platform of the present invention;

[0122] Figure 41 It is a structural schematic diagram of a spiral scraper in another embodiment of an ear and stalk harvesting platform of the present invention;

[0123] Figure 42 for Figure 41 A schematic diagram of the enlarged structure of part I in the middle;

[0124] Figure 43 for Figure 40 Schematic diagram of the structure viewed from above;

[0125] Figure 44 for Figure 41 Schematic diagram of the structure viewed from above;

[0126] Figure 45 This is a schematic diagram of the three-dimensional structure of a debris removal roller in one embodiment of an ear and stalk harvesting platform of the present invention;

[0127] Figure 46 It is a schematic diagram of the three-dimensional structure of a debris removal roller in another embodiment of an ear and stalk harvesting platform of the present invention;

[0128] Figure 47 The figure is a schematic diagram of the installation structure of the debris removal roller and scraper on the header frame;

[0129] Figure 48 for Figure 47 Schematic diagram of the local J-enlarged structure in the middle.

[0130] In the picture:

[0131] 201, cutting table frame;

[0132] 501, reed plowing frame; 502, clamping frame; 503, feeding channel; 504, clamping channel; 505, adjusting rod; 506, support; 508, strip plate; 511, end reed plowing frame; 512, mounting seat; 521, anti-slip wheel; 522, limiting wheel; 551, steel pipe; 552, threaded rod; 553, fixing nut; 554, movable nut; 555, slot; 571, front mounting shaft; 572, rear mounting shaft; 573, step pulley mounting shaft; 574, elastic adjustment device;

[0133] 601, plowing chain; 602, clamping chain; 611, plowing finger; 612, plowing outer chain plate; 613, plowing inner chain plate; 621, clamping tooth; 622, clamping inner chain plate; 623, clamping outer chain plate;

[0134] 701, rotating tower pulley; 702, reel tensioning pulley; 703, clamping sprocket; 704, reel sprocket; 705, clamping tensioning pulley; 706, clamping pressure pulley; 707, connecting plate; 751, adjusting device;

[0135] 801, picking roller; 802, picking roller reversing gear box; 803, first picking ridge; 804, second picking ridge;

[0136] 901, stem pulling roller; 902, stem pulling ridge;

[0137] 1001, stem pulling and ear picking gear box; 1002, feed roller shaft; 1003, stem pulling roller shaft; 1004, feed roller sleeve; 1005, first stem pulling roller gear; 1006, second stem pulling roller gear; 1007, third stem pulling roller gear; 1008, first feed roller gear; 1009, second feed roller gear; 1010, third feed roller gear; 1011, stem pulling and ear picking gear box cover;

[0138] 1101, feeding roller; 1102, feeding flute;

[0139] 12. Debris removal roller; 1201. Spiral scraper; 1202. Cross-rib scraper; 1203. Mounting shaft; 1204. Teeth; 1205. Blade assembly;

[0140] 13. Crop supporter; 1301. Crop divider; 1302. Crop support frame; 1303. Crop support rod; 1304. Protective housing; 1305. Crop divider housing; 1306. First upper cover plate; 1307. First side cover plate; 1308. Rear cover plate; 1309. Second upper cover plate; 1310. Rectangular plate; 1311. Second side cover plate; 1312. Connecting hinge; 1313. Snap-fit ​​rod; 1314. Connecting base; 1315. Buckle; 1316. Positioning plate; 1317. Snap-fit ​​groove; 1318. Rubber sheet; 1319. Guard plate; 1320. Articulated seat; 1321. Support seat; 1322. Articulated plate; 1323. Bolt;

[0141] 14. Fixed knife;

[0142] 15. Lower the cutting knife. DETAILED DESCRIPTION

[0143] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0144] like Figures 1 to 48As shown, a stem and ear harvesting platform includes a harvesting platform frame 201, a feeding system and a stem pulling and ear picking unit are installed on the harvesting platform frame 201, the feeding system includes a clamping chain 602, the stem pulling and ear picking unit includes a pair of feeding rollers 1101 installed on the front side of the top of the stem pulling and ear picking gear box 1001 and a pair of ear picking and stem pulling rollers corresponding to the feeding rollers 1101 and installed on the back side of the top of the stem pulling and ear picking gear box 1001, the upper part of the feeding roller 1101 is connected to a clamping sprocket 703 that matches the clamping chain 602, and the feeding system also includes a feeding roller 1101 and a clamping sprocket 703 that matches the clamping chain 602. It includes a straw feeding mechanism and a stem clamping mechanism. The straw feeding mechanism includes a straw frame 501 and a straw chain 601 rotatably mounted thereon. The stem clamping mechanism includes a clamping frame 502. The clamping chain 602 is rotatably mounted on the clamping frame 502. The rear end of the straw chain 601 and the front end of the clamping chain 602 are transmission-connected. A straw finger 611 for moving the stems is provided on the outside of the straw chain 601. The straw finger 611 is perpendicular to the straw outer chain plate 612, the straw inner chain plate 613 of the straw chain 601 and the conveying direction of the stems.

[0145] like Figures 2 to 9 As shown, before and after Figure 9 The stalks are transported from the front end to the back end of the feeding system based on the transmission route of the stalks shown in FIG. Figure 9 The direction of the middle arrow is from front to back. A rotating tassel 701 is provided at the junction of the plowing frame 501 and the clamping frame 502. The front end of the clamping chain 602 and the rear end of the plowing chain 601 are both mounted on the rotating tassel 701. That is, the clamping chain 602 transmits power to the plowing chain 601 via the rotating tassel 701. A plowing sprocket 704 is provided on the plowing frame 501. The plowing chain 601 is mounted on the rotating tassel 701, the plowing tensioning wheel 702, and the plowing sprocket 704. The plowing tensioning wheel 702 is used to keep the plowing chain 601 in a tensioned state. The clamping frame 502 is provided with a clamping tensioning wheel 705 and a clamping pressure wheel 706 for tensioning the clamping chain 602.

[0146] The upper and lower ends of the plowing fingers 611 are fixedly connected to two opposing outer link plates 612 or two inner link plates 613 on the plowing chain 601. Furthermore, the plowing fingers 611 are integrally formed with the two outer link plates 612 or two inner link plates 613 connecting their ends. The plowing fingers 611 are mounted on the outer link plates 612, with one plowing finger 611 provided for every pair of outer link plates 612, or on the inner link plates 613, with one plowing finger 611 provided for every pair of inner link plates 613.

[0147] A plurality of gear-like clamping teeth 621 are spaced apart on the outside of the clamping chain 602 and located on the inner clamping link plates 622 and the outer clamping link plates 623. The outer side of the clamping chain 602 is the side away from the clamping sprocket 703 and the rotating step pulley 701. That is, the outer sides of the inner clamping link plates 622 and the outer clamping link plates 623 are provided with gear-like clamping teeth 621.

[0148] A feeding channel 503 is formed between every two straw feeding mechanisms, and a clamping channel 504 is formed between every two straw clamping mechanisms. The left and right opening widths of the front ends of the clamping channels 504 are greater than the left and right opening widths of the middle and rear parts of the clamping channels 504.

[0149] Each of the left and right clamping frames 502 between two adjacent clamping channels 504 corresponds to a plowing frame 501. Furthermore, two end plowing frames 511 are located on the left and right sides of each plowing frame 501. The rear ends of the end plowing frames 511 are pivotally connected to the front ends of the two clamping frames 502 on the left and right sides, respectively. A feeding channel 503 is formed between the end plowing frames 511 and the adjacent plowing frames 501. The stalks enter through the front ends of the feeding channel 503 and are transported through the feeding channel 503 and the clamping channel 504 in sequence before being plucking and other subsequent processing.

[0150] The device further includes an adjustment rod 505 capable of connecting the end reed frames 511 to the header frame 201, and a support 506 fixedly connected to the header frame 201. The end reed frames 511 are provided with mounting seats 512, and the ends of the adjustment rod 505 are respectively hinged to the mounting seats 512 and the support 506. The header frame 201 is part of a corn harvesting header. By adjusting the adjustment rod 505, the degree of opening and closing between the two end reed frames 511 and the adjacent reed frames 501 can be conveniently controlled, thereby adjusting the cutting width of the entire corn harvesting header for harvesting straw, thereby meeting the harvesting requirements of corn with different planting spacings.

[0151] Specifically, the adjustment rod 505 comprises two steel tubes 551 at either end and a threaded rod 552 in the middle. Two fixing nuts 553 with opposite threading directions are fixedly connected to the ends of the two steel tubes 551 near the threaded rod 552. The ends of the threaded rod 552 are provided with threads that match the threads of the fixing nuts 553. The ends of the threaded rod 552 pass through the fixing nuts 553 and extend into the two steel tubes 551. Furthermore, two movable nuts 554 with the same threading direction as the fixing nuts 553 are provided on the threaded rod 552 near the fixing nuts 553 to secure the adjustment rod 505. A slot 555 is located in the middle of the threaded rod 552 to facilitate wrench adjustment. That is, the threads on the threaded rod 552 at the two ends of the slot 555 have opposite threading directions. The length of the adjusting rod 505 can be adjusted by using a wrench to lock the slot 555 and twist the threaded rod 552, thereby adjusting the degree of opening and closing between the end reed frame 511 and the adjacent reed frame 501. After adjusting the length of the adjusting rod 505, the movable nut is tightened until it is tightly against the adjacent fixed nut to fix the adjusting rod 505. This can ensure the stability between the threaded rod 552 and the fixed nuts at both ends, further improving the stability of the straw transportation of the present invention.

[0152] The clamping frame 502 is provided with a tensioning wheel assembly. The tensioning wheel assembly is located on the side of the clamping frame 502 away from the clamping channel 504. The two tensioning wheel assemblies between the left and right adjacent clamping channels 504 are arranged asymmetrically. Compared to one tensioning wheel assembly, the other tensioning wheel assembly is installed further back. This prevents the two opposing tensioning wheel assemblies from interfering with each other during tension adjustment, thereby increasing the tensioning stroke. Specifically, the tensioning wheel assembly includes a clamping tensioning wheel 705 and a clamping pressure wheel 706. The clamping tensioning wheel 705 and the clamping pressure wheel 706 are connected by a connecting plate 707. The clamping pressure wheel 706 is rotatably mounted on the clamping frame 502. The clamping tensioning wheel 705 is hinged to the clamping frame 502 via an adjustment device 751. A front mounting shaft 571 and a rear mounting shaft 572 are provided at the front end of the clamping frame 502 from front to rear. Two step pulley mounting shafts 573 are provided at the connection points between the left and right clamping frames 502 and the connected reed frame 501, respectively, and are aligned with the front mounting shafts 571 and rear mounting shafts 572 on the left and right clamping frames 502. A step pulley mounting shaft 573 is provided at the connection point between the clamping frame 502 and the connected end reed frame 511, respectively, and is aligned with the front mounting shafts 571 and rear mounting shafts 572. Furthermore, the front mounting shaft 571, rear mounting shaft 572, and step pulley mounting shaft 573 on the same clamping frame 502 are connected by a strip plate 508, which increases the mounting strength between the clamping frame 502 and the connected reed frame 501 or end reed frame 511. Specifically, in the two tensioning wheel groups between the two adjacent clamping channels 504 on the left and right, the adjusting device 751 of one tensioning wheel group is hinged to the clamping frame 502 through the front mounting shaft 571, and the adjusting device 751 of the other tensioning wheel group is hinged to the clamping frame 502 through the rear mounting shaft 572, so that the installation position of the other tensioning wheel group is relatively backward compared to the one tensioning wheel group, which is convenient for adjusting the tension of the two opposite tensioning wheel groups.

[0153] The straw feeding mechanism includes a straw frame 501 and a straw chain 601 rotatably mounted thereon, or an end straw frame 511 and a straw chain 601 rotatably mounted thereon. The stalk clamping mechanism includes a clamping frame 502 and a clamping chain 602 rotatably mounted thereon. A rotating tassel 701 is provided at the junction of the straw frame 501 or the end straw frame 511 and the clamping frame 502. The rotating tassel 701 is mounted on a tassel mounting shaft 573. The front end of the clamping chain 602 and the rear end of the straw chain 601 are both mounted on the rotating tassel 701. In other words, the clamping chain 602 transmits power to the straw chain 601 via the rotating tassel 701.

[0154] The front end of the end reeling frame 511 is connected to a reeling tensioning wheel 702 via an elastic adjustment device 574. Both the left and right ends of the front end of the reeling frame 501 are connected to the two reeling tensioning wheels 702 via the elastic adjustment device 574. A clamping sprocket 703 is rotatably provided at the rear end of the clamping frame 502, and the rear end of the clamping chain 602 is mounted on the clamping sprocket 703. The reeling frame 501 is provided with two reeling sprockets 704 corresponding to the two reeling tensioning wheels 702, respectively. A reeling sprocket 704 is provided on the end reeling frame 511. The reeling chain 601 is mounted on the rotating tower pulley 701, the reeling tensioning wheel 702, and the reeling sprocket 704. The reeling tensioning wheel 702 is used to keep the reeling chain 601 in a tensioned state. The clamping tensioning wheel 705 and the clamping pressure wheel 706 of the tensioning wheel assembly are used to tension the clamping chain 602.

[0155] The adjacent sides of the two clamping frames 502 form a clamping channel for conveying the stalks; when designed, the clamping frames 502 are in the shape of a strip plate and the two clamping frames 502 are located in the same horizontal plane, and the rear end of each clamping frame 502 is installed on the cutting table frame, and the number of groups of the stalk clamping mechanism can be set according to the size of the cutting table frame; a driving sprocket group and a clamping chain 602 matched with the driving sprocket group are provided on the clamping frame 502, and the driving sprocket group includes a rotating tower wheel 701 installed at the front end of the clamping frame 502 and a clamping sprocket 703 provided at the rear end of the clamping frame 502, as well as a clamping pressure wheel 706 and a clamping tensioning wheel 705 installed on the clamping frame 502, and the clamping pressure wheel 706 and the clamping tensioning wheel 705 are provided The clamping frame 502 is placed on one side away from the clamping channel, and the clamping pressure wheel 706 and the clamping tensioning wheel 705 are usually arranged close to the rotating tower wheel 701, and the above-mentioned clamping chain 602 is installed on the driving sprocket group. In this way, the rotating tower wheel 701 can cooperate with the clamping sprocket 703 to form a longer conveying channel for the clamping chain 602. The clamping tensioning wheel 705, the rotating tower wheel 701 and the clamping sprocket 703 cooperate to form a triangular chain stable support structure, which can effectively ensure the stable operation of the clamping chain 602. The arrangement of the clamping pressure wheel 706 and the clamping tensioning wheel 705 can effectively ensure the stability of the clamping chain 602 when conveying stems, and at the same time it is convenient to adjust the tension of the clamping chain 602.

[0156] On the adjacent sides of the two clamping frames 502, there are respectively arranged a plurality of groups of chain positioning mechanisms that cooperate with the clamping chain 602. The chain positioning mechanism includes an anti-skid wheel 521 and a limiting wheel 522 arranged on the clamping frame 502. When designed, the anti-skid wheel 521 and the limiting wheel 522 are spaced apart along the front and rear directions of the clamping frame 502, wherein the spacing between the anti-skid wheel 521 and the side of the clamping frame 502 is greater than the distance between the limiting wheel 522 and the side of the clamping frame 502, and the spacing between each limiting wheel 522 on the clamping frame 502 and the side is greater than the spacing between the limiting wheel 522 and the side. The distance between them is equal, and the distance between each anti-skid wheel 521 on the clamping frame 502 and the side is also equal. The side of the clamping frame 502 is close to the limiting wheel 522 to facilitate the support of the clamping chain 602. When the clamping chain 602 is not working, the clamping chain 602 is supported and limited by the limiting wheel 522 and the clamping chains 602 on the two supporting frames at the clamping channel are parallel. The anti-skid wheels 521 away from the side of the clamping frame 502 can facilitate the entry of the stems to form a depression on the clamping chain 602, and then limit it and play an anti-skid role in the process of clamping and conveying the stems.

[0157] The anti-slip wheels 521 and the limiting wheels 522 on the two clamping frames 502 are symmetrically arranged along the clamping channel formed by the two clamping frames 502, and the central axes of the anti-slip wheels 521 and the limiting wheels 522 are located in the same vertical plane. During the design, the anti-slip wheels 521 and the limiting wheels 522 on the two supporting frames are arranged opposite to each other, and the limiting wheels 522 on the clamping frame 502 on one side correspond to the anti-slip wheels 521 on the clamping frame 502 on the other side. This ensures that the stems are transported in an S-shaped path in the clamping channel, which can effectively ensure the clamping effect and avoid slipping. Of course, during production, the diameter of the anti-slip wheel 521 should be smaller than the diameter of the limiting wheel 522, which can save production costs.

[0158] The distance between the rotating tower wheel 701 and the chain positioning mechanism is greater than the distance between the anti-slip wheel 521 and the limiting wheel 522, and a bolt for fixing the clamping frame 502 is arranged between the anti-slip wheel 521 and the limiting wheel 522 near the clamping sprocket 703. There is a certain distance between the chain positioning mechanism and the rotating tower wheel 701, which can facilitate more stems to enter the clamping channel stably, and the bolts arranged between the anti-slip wheel 521 and the limiting wheel 522 at the end of the clamping channel reduce the distance between the anti-slip wheel 521 and the limiting wheel 522, which can facilitate the transportation of stems and avoid the stems from being stuck at the end of the clamping channel.

[0159] At the front ends of the two clamping frames 502, there are respectively provided with a plowing frame 501, and a plowing chain 601 is provided on the plowing frame 501. A feeding channel 503 is formed by the two plowing frames 501. When designed, the plowing frames 501 arranged at the front ends of the two clamping frames 502 are flared, which can facilitate the collection of more stems, thereby controlling the stems to enter the clamping channel, and thus facilitating the transportation of the stems; when manufactured, a rotating tower wheel 701 is provided at the intersection of the above-mentioned plowing frame 501 and the clamping frame 502, and the front ends of the clamping chain 602 and the plowing frame 503 are connected. The rear ends of the chains 601 are all mounted on the rotating tower wheel 701. The rotating tower wheel 701 controls the plowing chain 601 and the clamping chain 602 to facilitate the stable transportation of the stalks. A plowing tensioning wheel 704 is provided at the front end of the plowing frame 501. Similarly, a plowing sprocket 702 cooperating with the plowing chain 601 is also provided on the plowing frame 501. The plowing sprocket 702, the plowing tensioning wheel 704 and the rotating tower wheel 701 cooperate to form a stable triangular structure, so that the plowing chain 601 installed on the above three is more stable when transmitting the stalks.

[0160] like Figures 10 to 14 As shown, it also includes a crop divider 1301, and a crop support frame 1302 hinged to the header frame 201 is provided above the crop divider 1301. The crop support frame 1302 is provided with a plurality of crop support rods 1303 located above the crop divider 1301. The distance between the front ends of two adjacent crop support rods 1303 is adapted to the distance between two adjacent crop dividers 1301 below the crop support rods 1303.

[0161] The straw divider 1301 is a shell formed by multiple covering plates, which is closed on all sides and open at the bottom. During design, the straw divider 1301 includes a protective shell 1304 and a straw dividing shell 1305 connected to the front end of the protective shell 1304 and clamped on the straw digger frame 501.

[0162] The protective shell 1304 includes a first upper covering plate 1306 arranged horizontally, a first side covering plate 1307 arranged obliquely on the left and right sides of the first upper covering plate 1306, and a rear covering plate 1308 vertically connected to the rear end of the first upper covering plate 1306 and connected to the first side covering plate 1307 on the left and right sides. When designed, the first side covering plate 1307 is inclined toward the outside of the first upper covering plate 1306, and the plate body close to the lower end edge of the first side covering plate 1307 is arranged in the vertical direction and is perpendicular to the plane where the first upper covering plate 1306 is located; and the dividing shell 1305 includes a second upper covering plate 1309 arranged at the front end of the first upper covering plate 1306 and obliquely downward, and the second upper covering plate 1308 is connected to the rear end of the first upper covering plate 1306. The front end of 09 is connected to a rectangular plate 1310 arranged in the vertical direction, and a second side covering plate 1311 connected to the first side covering plate 1307 is arranged on the left and right sides of the second covering plate. At the same time, the lower bottom end of the second inclined covering plate is flush with the lower bottom end of the rectangular plate 1310. During installation, the straw divider 1301 is installed on the feeding system, and the straw dividing tensioning wheel at the front end of the feeding system extends out of the vertical plane where the rectangular plate 1310 of the straw divider 1301 is located. Of course, during production, multiple reinforcing plates can be installed in the protective shell 1304 and the straw dividing shell 1305 to ensure the stability of the shell, and the longitudinal sections of the connecting ends of the protective shell 1304 and the straw dividing shell 1305 are equal in size and have the same shape. By setting the straw divider 1301 into a semi-conical shell, it is convenient to quickly separate the straw during work, and the rectangular plate 1310 set at the front end of the straw divider 1301 can cooperate with the straw dividing tensioning wheel set at the front end of the straw dividing frame. The straw dividing tensioning wheel can push away the stems at the end, allowing the stems to quickly enter the feeding channel, effectively preventing the front end of the straw divider 1301 from knocking down the stems.

[0163] The straw splitting frame 501 on the left and right sides of the cutting table frame 201 is an adjustable structure. The straw splitting shell 1305 connected to the front end of the protective shell 1304 during manufacturing is divided into a hinged structure and a fixed structure. The straw splitter 1301 on the feeding system on the left and right sides of the cutting table frame 201 is a swingable straw splitter 1301 hinged to the straw splitting shell 1305, and the straw splitter 1301 between the two swinging straw splitters 1301 is a straw splitting shell 1305 fixed to the front end of the protective shell 1304; during design, the straw splitter 1301 installed on the left and right sides of the cutting table frame 201 includes a straw splitting shell 1305 fixed to the front end of the protective shell 1304. The protective shell 1304 is hinged to the side panels of the frame 201, and the straw separating shell 1305 is hinged at the front end of the protective shell 1304 and clamped at the front end of the feeding system. Rubber plates 1318 are provided on the left and right side panels of the straw separating shell 1305. The rubber plates 1318 cover the gap between the protective shell 1304 and the straw separating shell 1305. During manufacturing, a hinged baffle is provided on the upper top plate of the straw separating shell 1305 and an arc-shaped opening is provided on the hinged baffle. The arc-shaped opening is provided with a hinge bolt that hinges the straw separating shell 1305 to the protective shell 1304. By setting the rubber plate 1318, debris can be prevented from entering the interior of the straw divider 1301 through the gap between the protective shell 1304 and the straw dividing shell 1305, and the straw diverter frames 501 at the left and right ends of the harvesting table frame 201 are adjustable. The front end of the straw divider 1301 located on the left and right ends of the harvesting table frame 201 is set to a hinged structure, which can fully cooperate with the end straw diverter frames 501, making it convenient for the straw located on the left and right ends of the harvesting table frame 201 to enter the feeding channel of the harvesting table. Of course, during production, the outer end faces of the straw divider 1301 located on the left and right feeding systems are flush with the outer end faces of the left and right side plates of the harvesting table frame 201.

[0164] A connecting hinge 1312 is provided on the main body of the protective shell 1304 near the rear end, and a clamping mechanism connected to the straw plowing frame 501 is provided in the straw plowing shell 1305. The rear ends of the upper top plates of the straw plowing devices 1301 located at the left and right ends are provided with connecting hinges 1312 hinged to the side plates of the cutting table frame 201, and the rear covering plates 1308 of each straw plowing device 1301 located between the above-mentioned two straw plowing devices 1301 are provided with connecting hinges 1312 connected to the clamping frame 502. The straw plowing device 1301 is hinged to the cutting table frame 201 or the clamping frame 502 through the connecting hinges 1312, which can facilitate the disassembly and maintenance of the staff; the clamping mechanism includes a clamping rod 1313 horizontally fixed to the left and right inner walls of the straw plowing shell 1305 and a clamping seat provided on the straw plowing frame 501, and the clamping seat is fixed to the straw plowing frame 501. The connecting base 1314 on the frame 501 and the buckle 1315 fixed to one side of the connecting base 1314 and cooperating with the clamping rod 1313, a positioning plate 1316 is provided on the clamping rod 1313, and a clamping groove 1317 cooperating with the positioning plate 1316 is provided on the upper end surface of the connecting base 1314, the clamping mouth of the above-mentioned buckle 1315 is vertically upward and extends out of the upper end surface of the connecting base 1314. During manufacturing, in order to make the straw divider 1301 stably clamped on the feeding system, two clamping seats are required to cooperate with the clamping rod 1313, and the clamping rod 1313 is provided with two parallel positioning plates 1316 corresponding to the clamping seats. By respectively snapping the positioning plate 1316 and the mounting rod 1313 into the mounting slot 1317 and the buckle 1315, the disassembly and assembly of the straw divider 1301 becomes faster and more convenient, and the supporting and limiting function effectively prevents the straw divider 1301 from swinging up and down. A guard plate 1319 is also installed on the rear end face of the straw divider 1301. The guard plate 1319 is made of rubber material. The lower bottom edge of the guard plate 1319 is flush with the lower bottom edge of the rear end face of the straw divider 1301, and the outer end edges of the upper guard plates 1319 of two adjacent straw dividers 1301 are in contact with each other. In this way, the upper guard plates 1319 of two adjacent straw dividers 1301 cooperate to prevent the harvested stalks from falling.

[0165] A straw divider 1301 is provided with a straw support frame 1302 hinged on the cutting table frame 201 above the straw divider 1301, and a plurality of straw support rods 1303 are provided on the straw support frame 1302 above the straw divider 1301, and the distance between the front ends of two adjacent straw support rods 1303 is adapted to the distance between two adjacent straw dividers 1301 below the straw support rods 1303; when designing, hinge seats 1320 are installed on the left and right side panels of the cutting table frame 201, and the two ends of the straw support frame 1302 are respectively hinged on the hinge seats 1320 of the left and right side panels of the cutting table frame 201; the hinge seat 1320 includes a hinge fixed horizontally to the inner end surface of the side panel of the cutting table frame 201 The support base 1321 has two hinge plates 1322 arranged at intervals on the support base 1321, and the two hinge plates 1322 are provided with corresponding hinge holes. The above-mentioned straw supporting frame 1302 is a rod body with downward bending at both ends, and through holes corresponding to the hinge holes are provided at both ends of the rod body. The bending ends of the straw supporting frame 1302 are not installed between the two hinge plates 1322, and bolts 1323 for hingedly connecting the two are installed in the through holes and the hinge holes. The straw supporting frame 1302 is hinged to the hinge base 1320 by the bolts 1323. The straw supporting frame 1302 is a rod body with downward bending at both ends, so that the straw supporting frame 1302 can have a certain height and is convenient for installing the straw supporting rod 1303. The straw support rod 1303 provided on the straw support frame 1302 is a rod body with a downwardly curved front end and a front end resting on the top surface of the straw divider 1301. The rear end of the straw support rod 1303 is fixedly connected to the straw support frame 1302, and the front and rear setting direction of the straw support rod 1303 is adapted to the clamping channel of the cutting table frame 201. In order to facilitate the harvesting of the stalks, a straw support limiting rod is provided between two adjacent straw support rods 1303 located just above the clamping channel. When the stalks enter the conveying channel through the limiting rod, the straw support rod 1303 above it forms a straw support path with a large front opening and a small rear opening. The straw support rod 1303 with a curved front end cooperates with the straw divider 1301 to prevent the stalks from falling over during harvesting, and facilitate the stalks to enter the conveying channel during cutting.

[0166] like Figures 15 to 39 As shown, the ear picking and stem pulling rollers include an upper ear picking roller 801 and a lower stem pulling roller 901, wherein the top of one of the ear picking rollers 801 is connected to a reversing gear box 802 that provides power thereto;

[0167] Two vertically arranged stem pulling rollers 1003 are rotatably connected to the stem pulling and ear picking gear box 1001, and the stem pulling roller 901 is installed on the stem pulling roller 1003. The two stem pulling rollers 1003 are arranged one on the left and one on the right. The stem pulling and ear picking gear box 1001 is also rotatably connected to two vertically arranged feeding rollers 1002 located in front of the stem pulling roller 1003, and the feeding roller 1101 is installed on the feeding roller 1002. The two feeding rollers 1002 are arranged one on the left and one on the right. The two stem pulling rollers 1003 are transmission connected to each other, and the two feeding rollers 1002 are transmission connected to each other, and one of the stem pulling rollers 1003 is transmission connected to one of the feeding rollers 1002.

[0168] One of the stem pulling roller shafts 1003 is equipped with a first stem pulling roller gear 1005 and a second stem pulling roller gear 1006, and the other stem pulling roller shaft 1003 is equipped with a third stem pulling roller gear 1007 meshing with the second stem pulling roller gear 1006. One of the feeding roller shafts 1002 is equipped with a second feeding roller gear 1009 and a first feeding roller gear 1008 meshing with the first stem pulling roller gear 1005, and the other feeding roller shaft 1002 is equipped with a third feeding roller gear 1010 meshing with the second feeding roller gear 1009. The stem pulling roller shaft 1003 equipped with the first stem pulling roller gear 1005 and the feeding roller shaft 1002 equipped with the first feeding roller gear 1008 are arranged diagonally. During use, the ear-picking roller reversing gearbox 802 transmits power to the first ear-picking roller 801, driving the first ear-picking roller 801 and the first stem-pulling roller shaft 1003 to rotate. The first stem-pulling roller shaft 1003 drives the second stem-pulling roller shaft 1003 to rotate via the second stem-pulling roller gear 1006 and the third stem-pulling roller gear 1007. The first stem-pulling roller shaft 1003 drives the first feeding roller shaft 1002 to rotate via the first stem-pulling roller gear 1005 and the first feeding roller gear 1008. The first feeding roller shaft 1002 drives the second feeding roller shaft 1002 to rotate via the second feeding roller gear 1009 and the third feeding roller gear 1010. This structure is compact and the transmission is reliable.

[0169] The first stalk pulling roller gear 1005 and the first feed roller gear 1008 are located in the lower inner portion of the stalk pulling and ear picking gear housing 1001, the second stalk pulling roller gear 1006 and the third stalk pulling roller gear 1007 are located in the upper inner portion of the stalk pulling and ear picking gear housing 1001, and the second feed roller gear 1009 and the third feed roller gear 1010 are located in the middle inner portion of the stalk pulling and ear picking gear housing 1001. During use, the gears in the stalk pulling and ear picking gear housing 1001 are arranged in three layers, reducing the risk of mutual interference and improving space utilization. This structure is compact and the transmission is reliable.

[0170] The height of the upper end of the feeding roller shaft 1002 is greater than the height of the upper end of the stalk pulling roller shaft 1003. When in use, the feeding roller shaft 1002 is used to mount the feeding roller 1101. Since the upper end of the feeding roller 1101 is suspended, the longer length of the feeding roller shaft 1002 is beneficial to improving the stability of the feeding roller 1101. The stalk pulling roller shaft 1003 is used to mount the stalk pulling roller 901 and the ear picking roller 801. Since the upper end of the ear picking roller 801 is suspended, the stalk pulling roller shaft 1003 can be shorter.

[0171] The stem pulling and ear picking gear box 1001 is equipped with a feeding roller sleeve 1004 that is sleeved on the feeding roller shaft 1002. The feeding roller shaft 1002 is rotatably connected to the upper end of the feeding roller sleeve 1004. When in use, the feeding roller 1101 is sleeved on the feeding roller shaft 1002, and the feeding roller sleeve 1004 can improve the stability of the feeding roller shaft 1002 and the feeding roller 1101.

[0172] The upper end of the stem pulling roller 1003 has a spline shaft structure, and the upper end of the feeding roller 1002 has a spline shaft structure. When in use, it is easy to install.

[0173] The upper end of the stem pulling and ear picking gear box 1001 is open, and the upper end of the stem pulling and ear picking gear box 1001 is detachably mounted with a stem pulling and ear picking gear box cover 1011, which facilitates the manufacture and installation of the stem pulling and ear picking gear box 1001.

[0174] The lower end of the stem pulling roller 1003 is rotatably connected to the bottom of the stem pulling and ear picking gear box 1001, and the stem pulling roller 1003 passes through the stem pulling and ear picking gear box cover 1011 and is rotatably connected to the stem pulling and ear picking gear box cover 1011. The lower end of the feeding roller 1002 is rotatably connected to the bottom of the stem pulling and ear picking gear box 1001, and the feeding roller 1002 passes through the stem pulling and ear picking gear box cover 1011 and is rotatably connected to the stem pulling and ear picking gear box cover 1011. This facilitates the manufacture and installation of the stem pulling and ear picking gear box 1001.

[0175] The distance between the center axes of the two pulling rollers 1003 is smaller than the distance between the center axes of the two feeding rollers 1002; the width of the gap between the two pulling rollers 901 is smaller than the width of the gap between the two feeding rollers 1101. This facilitates the transportation of corn stalks during use.

[0176] The shape of the gear box 1001 for pulling the stems and picking the ears is rectangular, and the four corners of the gear box 1001 are rounded, which is convenient for installing the gears.

[0177] The feeding roller 1101 side is connected with several feeding ridges 1102, which extend in the vertical direction and have several convex teeth on the outside of the feeding ridges 1102. During use, as the feeding roller 1101 rotates, the feeding ridges 1102 push the corn stalks to the feeding roller 1101 rear portion.

[0178] The diameter of the upper end of the pulling roller 901 is larger than that of the lower end. The side of the pulling roller 901 is connected to a plurality of pulling ridges 902, which extend in the vertical direction and are arranged vertically on the outside of the pulling ridges 902. When in use, the gap between the lower ends of the two pulling rollers 901 is large, which facilitates the feeding of corn stalks and reduces blockage.

[0179] In one embodiment, the side cross-section of the picking roller 801 is octagonal, and is connected to a plurality of first picking ridges 803 extending vertically. During use, as the picking roller 801 rotates, the first picking ridges 803 push the corn stalks to the rear of the picking roller 801, facilitating separation of the corn ears from the corn stalks.

[0180] The cross-section of the first ear picking ridge 803 is circular. Preferably, the first ear picking ridge 803 is made of threaded round steel to increase the friction between the ear picking roller 801 and the corn stalks. The first ear picking ridge 803 pushes the corn stalks to the rear of the ear picking roller 801, making it easier to separate the corn ears from the corn stalks.

[0181] There are four first ear picking ridges 803, which are arranged one-to-one with the four corners of the side of the ear picking roller 801. When in use, the first ear picking ridges 803 cooperate with the ear picking roller 801 to push the corn stalks left and right, making it easier to separate the corn ears from the corn stalks.

[0182] In another embodiment, the side cross-section of the picking roller 801 is circular, and a plurality of first picking ridges 803 are connected to the side of the picking roller 801. The first picking ridges 803 are U-shaped, and the open end of the picking roller 801 faces the direction of rotation of the picking roller 801. The plurality of first picking ridges 803 are distributed in a spiral shape. During use, as the picking roller 801 rotates, the first picking ridges 803 push the corn stalks to the rear of the picking roller 801, thereby facilitating the separation of the corn ears from the corn stalks.

[0183] The length of the lower side of the first ear picking ridge 803 is greater than the length of the upper side of the first ear picking ridge 803. When in use, the friction between the ear picking roller 801 and the corn stalk is increased, and the first ear picking ridge 803 pushes the corn stalk to the rear of the ear picking roller 801, making it easier to separate the corn ears from the corn stalk.

[0184] The lower side end of the first ear picking ridge 803 is tilted downward. When in use, the friction between the ear picking roller 801 and the corn stalk is increased, and the first ear picking ridge 803 pushes the corn stalk to the rear of the ear picking roller 801, making it easier to separate the corn ears from the corn stalk.

[0185] In another embodiment, the side cross-section of the ear picking roller 801 is circular, and the side of the ear picking roller 801 is connected to a spiral second ear picking ridge 804. When in use, as the ear picking roller 801 rotates, the second ear picking ridge 804 pushes the corn stalks to the rear of the ear picking roller 801, making it easier to separate the corn ears from the corn stalks.

[0186] The side of the picking roller 801 is also connected to a plurality of first picking ridges 803. The first picking ridges 803 extend in the vertical direction and have notches that allow the second picking ridges 804 to pass through. When in use, the friction between the picking roller 801 and the corn stalks is increased, and the first picking ridges 803 and second picking ridges 804 push the corn stalks to the rear of the picking roller 801, making it easier to separate the corn ears from the corn stalks.

[0187] The cross-sections of the first and second ear-picking ridges 803 and 804 are circular. Preferably, the first ear-picking ridges 803 are made of threaded round steel to increase the friction between the ear-picking roller 801 and the corn stalks. The first and second ear-picking ridges 803 and 804 push the corn stalks to the rear of the ear-picking roller 801, making it easier to separate the corn ears from the corn stalks.

[0188] The stem pulling roller 901 and the ear picking roller 801 are hollow structures, which are convenient for manufacturing and installation.

[0189] The lower end of the stem pulling roller 901 has a spline groove structure, and the upper end of the ear picking roller 801 has a spline shaft structure, which is convenient for manufacturing and installation.

[0190] like Figures 40 to 48 As shown, a cleaning roller 12 is rotatably mounted on the cutting table frame 201. The cleaning roller 12 is located below the feeding system. Two sets of spiral scrapers 1201 are provided on the outer wall of the cleaning roller 12. The two sets of spiral scrapers 1201 rotate in opposite directions and extend spirally along the axial direction of the cleaning roller 12. Figure 1 , Attachment Figure 8 The dust collecting roller 12 is installed on the rear side of the lower cutter 15, the front side of the cob conveyor belt, and the lower side of the straw chain. When the corn stalks are cut by the lower cutter 15, they are transported backwards via the straw chain. During this process, the dust collecting roller 12 driven by the power input mechanism rotates continuously and comes into contact with the straw. The spiral scraper 1201 on the dust collecting roller 12 can clean the dirt and weeds stuck on the lower end of the corn stalks. The dust collecting roller 12 is provided with two sets of spiral scrapers 1201 with opposite rotation directions, which can push the weeds on the straw to both sides to ensure its own cleaning and prevent the weeder from being entangled in weeds.

[0191] In order to further improve the cleaning ability of the impurity removal roller 12, a transverse rib scraper 1202 is provided on the outer wall of the impurity removal roller 12. The transverse rib scraper 1202 extends along the axial direction of the impurity removal roller 12. The transverse rib scraper 1202 can scrape off the dirt stuck on the straw and effectively clean the straw. Figure 4 , Attachment Figure 5 There are multiple transverse rib scrapers 1202, which are arranged at intervals in the circumferential direction around the impurity removal roller 12, which can further improve the cleaning ability of the impurity removal roller 12 for sticky mud.

[0192] The spiral scraper 1201 and / or the transverse rib scraper 1202 are provided with teeth 1204 on the end away from the weed removal roller 12. These teeth 1204 pull weeds, facilitating the removal of weeds entangled with the weed removal roller 12. The teeth 1204 are arranged in a wavy pattern. They are triangular in shape, and multiple teeth 1204 are provided.

[0193] To prevent weeds from becoming entangled on the cleaning roller 12, a fixed blade 14 is mounted on the cutting table frame 201. The fixed blade 14 is located behind the cleaning roller 12 and spaced apart from it. The fixed blade 14 is spaced 2 to 3 millimeters from the cleaning roller 12. Together, the cleaning roller 12 prevents weeds from becoming entangled in the roller 12, ensuring proper cleaning. Specifically, the fixed blade 14 extends axially along the cleaning roller 12, with its cutting edge facing the roller 12.

[0194] Regarding the specific structure of the spiral scraper 1201, it is composed of multiple blade assemblies 1205, which are arranged end-to-end in a spiral pattern. The blade assemblies 1205 meet at the intersection of two sets of spiral scrapers 1201. This arrangement facilitates the formation of the spiral scraper 1201. In the event of damage to the spiral scraper 1201, only the damaged section of the blade assembly 1205 needs to be replaced, making maintenance of the debris removal roller easier.

[0195] Regarding the installation structure of the debris removing roller 12 , installation shafts 1203 are provided at both ends of the debris removing roller 12 , and the debris removing roller 12 is rotatably installed on the cutting table frame 201 via the installation shafts 1203 .

[0196] The power of the present invention is transmitted from the cutting platform transmission shaft to the picking roller reversing gear box 802, the transition shaft and the rear licker-in roller.

[0197] The picking roller reversing gear box 802 transmits the power to the first pulling roller 901, which transmits the power to the pulling and picking gear box, which transmits the power to the second pulling roller 901 and the feeding roller 1101. The feeding roller 1101 transmits the power to the clamping chain 602 and the plowing chain 601.

[0198] The transition shaft transmits the energy to the cleaning roller 12, the conveyor belt reversing gear box and the lower cutter 15. The conveyor belt reversing gear box transmits the energy to the conveyor belt.

[0199] The cutting table drive shaft, transition shaft, rear licker-in roller, conveyor belt reversing gear box conveyor belt are prior art and will not be described in detail here.

[0200] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A stem and ear harvesting platform, characterized in that: The invention comprises a cutting table frame (201), a feeding system and a stem pulling and ear picking unit are installed on the cutting table frame (201), the feeding system comprises a clamping chain (602), the stem pulling and ear picking unit comprises a pair of feeding rollers (1101) installed on the front side of the top of the stem pulling and ear picking gear box (1001) and a pair of ear picking and stem pulling rollers corresponding to the feeding rollers (1101) and installed on the back side of the top of the stem pulling and ear picking gear box (1001), the upper part of the feeding roller (1101) is connected to a clamping sprocket (703) matched with the clamping chain (602), the feeding system also comprises a straw feeding mechanism and The straw clamping mechanism comprises a straw feeding mechanism including a straw frame (501) and a straw chain (601) rotatably mounted thereon, the straw clamping mechanism comprises a clamping frame (502), the clamping chain (602) is rotatably mounted on the clamping frame (502), the rear end of the straw chain (601) and the front end of the clamping chain (602) are connected in a transmission manner, and a straw finger (611) for moving the straw is provided on the outside of the straw chain (601), the straw finger (611) is perpendicular to the straw outer chain plate (612) and the straw inner chain plate (613) of the straw chain (601) and the conveying direction of the straw; The ear picking and stem pulling rollers comprise an upper ear picking roller (801) and a lower stem pulling roller (901), wherein the top of one of the ear picking rollers (801) is transmission-connected to a reversing gear box (802) that provides power thereto; Two vertically arranged stem pulling rollers (1003) are rotatably connected to the stem pulling and ear picking gear box (1001), the stem pulling roller (901) is mounted on the stem pulling roller (1003), and the two stem pulling rollers (1003) are arranged one on the left and one on the right. The stem pulling and ear picking gear box (1001) is also rotatably connected to two vertically arranged feeding rollers (1002) located in front of the stem pulling roller (1003), the feeding roller (1101) is mounted on the feeding roller (1002), and the two feeding rollers (1002) are arranged one on the left and one on the right. The two stem pulling rollers (1003) are transmission-connected to each other, the two feeding rollers (1002) are transmission-connected to each other, and one of the stem pulling rollers (1003) is transmission-connected to one of the feeding rollers (1002). A first stem pulling roller gear (1005) and a second stem pulling roller gear (1006) are mounted on one of the stem pulling roller shafts (1003); a third stem pulling roller gear (1007) meshing with the second stem pulling roller gear (1006) is mounted on the other stem pulling roller shaft (1003); a second feed roller gear (1009) and a first feed roller gear (1008) meshing with the first stem pulling roller gear (1005) are mounted on one of the feed roller shafts (1002); a third feed roller gear (1010) meshing with the second feed roller gear (1009) is mounted on the other feed roller shaft (1002); the stem pulling roller shaft (1003) mounted with the first stem pulling roller gear (1005) and the feed roller shaft (1002) mounted with the first feed roller gear (1008) are arranged diagonally.

2. The stalk and ear harvesting platform according to claim 1, wherein: A reel tensioning wheel (702) is provided at the front end of the reel plowing frame (501), and a reel plowing chain (601) is mounted on the reel tensioning wheel (702); A rotating tower wheel (701) is provided at the junction of the plowing frame (501) and the clamping frame (502), and the front end of the clamping chain (602) and the rear end of the plowing chain (601) are both mounted on the rotating tower wheel (701); A reed-pulling frame (501) is provided with a reed-pulling sprocket (704).

3. The stalk-harvesting header according to claim 2, wherein: A feeding channel (503) is formed between every two straw feeding mechanisms, and a clamping channel (504) is formed between every two straw clamping mechanisms, and the left and right opening widths of the front end of the clamping channel (504) are larger than the left and right opening widths of the middle and rear parts of the clamping channel (504); The left and right clamping frames (502) between two adjacent clamping channels (504) correspond to a reeding frame (501).

4. The stalk-harvesting header according to claim 3, wherein: A plurality of chain positioning mechanisms cooperating with the clamping chain (602) are respectively arranged at intervals on adjacent sides of the two clamping frames (502), and the chain positioning mechanisms include anti-slip wheels (521) and limiting wheels (522) arranged on the clamping frames (502); The anti-slip wheel (521) and the limiting wheel (522) are spaced apart along the front-back direction of the clamping frame (502), and the distance between the anti-slip wheel (521) and the side of the clamping frame (502) is greater than the distance between the limiting wheel (522) and the side of the clamping frame (502); The anti-slip wheels (521) and the limiting wheels (522) on the two clamping frames (502) are symmetrically arranged along the clamping channel formed by the two clamping frames (502), and the central axes of the anti-slip wheels (521) and the limiting wheels (522) are located in the same vertical plane; The distance between the rotating tower wheel (701) and the chain positioning mechanism is greater than the distance between the anti-skid wheel (521) and the limiting wheel (522), and a bolt for fixing the clamping frame (502) is provided between the anti-skid wheel (521) and the limiting wheel (522) near the clamping sprocket (703); The diameter of the anti-slip wheel (521) is smaller than the diameter of the limiting wheel (522).

5. The stalk harvesting header according to claim 4, characterized in that The invention also includes a straw divider (1301), wherein a straw support frame (1302) hinged to the cutting platform frame (201) is provided above the straw divider (1301), and a plurality of straw support rods (1303) located above the straw divider (1301) are provided on the straw support frame (1302), and the spacing between the front ends of two adjacent straw support rods (1303) is adapted to the spacing between two adjacent straw dividers (1301) below the straw support rods (1303).

6. The stalk harvesting and header according to claim 1, wherein: The first stem pulling roller gear (1005) and the first feeding roller gear (1008) are located at the lower inner portion of the stem pulling and ear picking gear housing (1001), the second stem pulling roller gear (1006) and the third stem pulling roller gear (1007) are located at the upper inner portion of the stem pulling and ear picking gear housing (1001), and the second feeding roller gear (1009) and the third feeding roller gear (1010) are located at the middle inner portion of the stem pulling and ear picking gear housing (1001); The distance between the center axes of the two stem pulling rollers (1003) is smaller than the distance between the center axes of the two feeding rollers (1002); and the width of the gap between the two stem pulling rollers (901) is smaller than the width of the gap between the two feeding rollers (1101).

7. The stalk-harvesting header according to claim 6, wherein: The side of the feeding roller (1101) is connected to a plurality of feeding ridges (1102), the feeding ridges (1102) extend in a vertical direction, and the outer side of the feeding ridges (1102) has a plurality of convex teeth; The diameter of the upper end of the stem pulling roller (901) is larger than the diameter of the lower end thereof. The side of the stem pulling roller (901) is connected to a plurality of stem pulling ridges (902). The stem pulling ridges (902) extend in a vertical direction, and the outer sides of the stem pulling ridges (902) are vertically arranged.

8. The stalk harvesting and header according to claim 7, wherein: The cross-section of the side of the picking roller (801) is in the shape of an octagon, and the side of the picking roller (801) is connected to a plurality of first picking ridges (803), and the first picking ridges (803) extend in the vertical direction; the cross-section of the first picking ridges (803) is in the shape of a circle; the number of the first picking ridges (803) is four, and the four first picking ridges (803) are arranged in a one-to-one correspondence with the four corners of the side of the picking roller (801); or, the cross-section of the side of the picking roller (801) is in the shape of a circle, and the side of the picking roller (801) is connected to a plurality of first picking ridges (803), and the shape of the first picking ridges (803) is U-shaped, and the open end of the picking roller (801) faces the rotation direction of the picking roller (801). If The first ear-picking ridges (803) are distributed in a spiral shape; the length of the lower side of the first ear-picking ridge (803) is greater than the length of the upper side of the first ear-picking ridge (803); the end of the lower side of the first ear-picking ridge (803) is tilted downward; or, the cross-section of the side of the ear-picking roller (801) is circular, and the side of the ear-picking roller (801) is connected to the spiral second ear-picking ridge (804); the side of the ear-picking roller (801) is further connected to a plurality of first ear-picking ridges (803), the first ear-picking ridges (803) extend in a vertical direction, and the first ear-picking ridges (803) are provided with notches for accommodating the second ear-picking ridges (804) to pass through; the cross-sections of the first ear-picking ridges (803) and the second ear-picking ridges (804) are circular.

9. The stalk harvesting header according to any one of claims 1 to 5, characterized in that: A debris removal roller (12) is rotatably mounted on the cutting table frame (201), the debris removal roller (12) is located below the feeding system, and two groups of spiral scrapers (1201) are provided on the outer wall of the debris removal roller (12), the two groups of spiral scrapers (1201) rotate in opposite directions and extend spirally along the axial direction of the debris removal roller (12); A transverse rib scraper (1202) is provided on the outer wall of the impurity removal roller (12), and the transverse rib scraper (1202) extends along the axial direction of the impurity removal roller (12); A plurality of transverse rib scrapers (1202) are provided, and the plurality of transverse rib scrapers (1202) are arranged at intervals in the circumferential direction around the impurity removal roller (12); The spiral scraper (1201) and / or the transverse rib scraper (1202) is provided with teeth (1204) at one end away from the impurity removal roller (12); The teeth (1204) are arranged in a wave shape; It also includes a fixed knife (14), which is installed on the cutting table frame (201). The fixed knife (14) is located at the rear side of the impurity removal roller (12) and is spaced apart from the impurity removal roller (12).

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