A corn harvester header

Abstract

The application discloses a corn harvester header, and relates to the technical field of agricultural machinery equipment. The corn harvester header comprises an engine, the front face of the engine is provided with a harvesting table, the back of the harvesting table is fixedly connected with a conveying pipe, the back of the conveying pipe is fixedly connected with a thresher, the outer wall of the conveying pipe is fixedly connected with an exhaust mechanism, and the inside of the harvesting table is movably connected with a rubbing and cracking mechanism in front of the conveying pipe. When corn cobs are conveyed in the conveying pipe, three air inlet fans blow upward, air flow is discharged from the opening at the top of the conveying pipe, weed leaves sent together with the corn are blown out, the air-permeable conveying belt is hit and upwardly hit, corn on the air-permeable conveying belt is thrown upward, corn cobs are prevented from pressing weeds, and the weeds are blown out from the top of the conveying pipe by the air flow generated by the air inlet fans.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery and equipment technology, specifically to a corn harvester header. Background Technology

[0002] The header of a corn harvester is the core component in the corn harvesting process. It is mainly responsible for efficiently and accurately picking the ears of corn from the stalks and transporting them to the subsequent processing equipment through a conveying mechanism.

[0003] Patent CN105612920B discloses a header for a corn harvester, including a frame. The frame is equipped with a power input shaft and a power distribution shaft. The frame is equipped with a picking device and a straw crushing device driven by the power input shaft. The power output shaft of the picking device inputs power to the power distribution shaft, which drives a row-separating and cutting device on the frame. The picking device is located below and behind the row-separating and cutting device. The straw crushing device and the picking device are installed in a matching manner on the frame below the picking device.

[0004] Existing corn harvesters often collect weeds along with the corn during the harvesting process. These weeds are then collected into the thresher, affecting the thresher's screening efficiency and consequently impacting the efficiency of corn kernel harvesting. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a header for a corn harvester to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a corn harvester header, comprising an engine, a harvesting platform disposed on the front of the engine, a transport pipe fixedly connected to the back of the harvesting platform, a thresher fixedly connected to the back of the transport pipe, a discharge mechanism fixedly connected to the outer wall of the transport pipe, a grinding mechanism movably connected to the front of the transport pipe inside the harvesting platform, a threshing device movably connected to the top of the harvesting platform, a conveyor wheel movably connected inside the harvesting platform, a grain-pulling claw movably connected to the outer wall of the conveyor wheel, and a cutting blade disposed on the front of the harvesting platform.

[0007] The discharge mechanism includes:

[0008] An intake fan is fixedly connected to the bottom of the transport pipe;

[0009] A striking frame, which is movably connected inside the transport pipe;

[0010] A ventilated conveyor belt is movably connected inside the transport pipe.

[0011] Preferably, there are three intake fans and three impact frames, with the three impact frames located inside the ventilation conveyor belt, and the outer wall of the ventilation conveyor belt is provided with several conveyor plates.

[0012] Preferably, the engine drives the thresher to work via belt drive, the engine drives the conveyor wheel to rotate via belt drive, the engine drives the reel to rotate via belt drive, the conveyor wheel drives the ventilated conveyor belt to move via the conveyor belt structure, and the ventilated conveyor belt drives the conveyor belt to rotate the three striking frames via corresponding rollers when it moves.

[0013] Preferably, the top of the transport pipe is provided with an opening, and two sliding guide rails are fixedly connected to the top of the transport pipe. Each of the two sliding guide rails is movably connected to a sliding block. The top of the transport pipe is provided with a sliding rod, and the two ends of the sliding rod are movably connected to the inside of the corresponding sliding guide rail. The top of the transport pipe is provided with a limiting sliding rod, and the two ends of the top of the limiting sliding rod are movably connected to the inside of the corresponding sliding guide rail.

[0014] Preferably, the limiting slide bar and the outer wall of the sliding bar are provided with limiting frames, and the limiting frames are movably connected to the outer wall of the corresponding sliding block. The top of the opening at the top of the transport pipe is provided with an anti-blocking block, and the limiting slide bar and the sliding bar are fixedly connected with anti-blocking blocks.

[0015] Preferably, the grinding mechanism includes a fixed ring, a telescopic rod is fixedly connected to the left side of the fixed ring and the telescopic rod is movably connected to the inside of the harvesting table through a bearing, and five toothed plates are fixedly connected to the right side of the fixed ring.

[0016] Preferably, a fixed disk is fixedly connected to the right side of the toothed plate, and a transmission rod is fixedly connected to the right side of the fixed disk. The rotation of the conveyor wheel can drive the transmission rod to rotate through the conveyor belt.

[0017] Preferably, a sliding frame is movably connected to the outer wall of the toothed plate, and the outer wall of the sliding frame is fixedly connected to the corresponding toothed plate outer wall with mating teeth. A baffle is fixedly connected to the inner wall of the harvesting table on the front of the sliding frame, and several protrusions are provided on the outer wall of the ventilated conveyor belt.

[0018] This invention provides a header for a corn harvester. It has the following advantages:

[0019] 1. The header of this corn harvester, when conveying corn cobs inside the transport pipe, has three intake fans blowing upwards, allowing airflow to exit from the opening at the top of the transport pipe, blowing out weeds and leaves that are fed in along with the corn. The striking frame strikes the ventilated transport belt upwards, causing the corn on the ventilated transport belt to be thrown upwards, preventing the corn cobs from pressing down on the weeds. This allows the weeds to be blown out from the top of the transport pipe by the airflow generated by the intake fans, thereby improving the harvesting efficiency of corn kernels.

[0020] 2. The header of this corn harvester uses two sliding blocks that move back and forth on the top of the corresponding sliding guide rails. This causes the limiting slide bar and the sliding rod to move left and right, which in turn causes the anti-blocking block to move left and right. The inclined edges on both sides of the anti-blocking block will push the weeds stuck at the top opening of the transport pipe outward to prevent the weeds from blocking the pipe. When the anti-blocking block moves to the edge, it will move upward and use the raised part of the edge of the anti-blocking block to hook the weeds upward to prevent the weeds from blocking the opening of the transport pipe. This improves the effect of blowing out the weeds and indirectly improves the harvesting efficiency of corn kernels.

[0021] 3. The header of this corn harvester is driven to rotate by a transmission rod, causing the five toothed plates to rotate. At the same time, the telescopic rod continuously extends and retracts, causing the toothed plates and their corresponding mating teeth to move relative to each other. This teares the dry husks on the surface of the corn cobs and also tears some of the weeds that are fed in, turning the husks into small pieces. When the sliding frame is moved left and right, it moves the corn cobs, causing them to rub against the protrusions on the surface of the ventilated conveyor belt, tearing the husks on the surface of the corn cobs. This facilitates the removal of weeds and improves the harvesting efficiency of the corn kernels.

[0022] 4. When the header of this corn harvester blows air through the conveying pipe via three intake fans, the excess airflow due to the large intake volume will flow to the header and thresher. This will cause the airflow to separate the broken leaves of the corn cob and blow out some lighter weeds from the top of the baffle, further reducing the amount of weeds entering the thresher and improving the harvesting efficiency of corn kernels.

[0023] 5. The header of this corn harvester, with its raised blocks, reduces the area of ​​direct contact between the corn cobs and the top of the ventilated conveyor belt. This reduces the likelihood of the corn cobs pressing down on weeds on the conveyor belt due to their own weight. By increasing the airflow through the ventilated conveyor belt and the sliding guide rail, weeds are more easily blown away by the airflow, reducing the amount of weeds entering the thresher and thus improving the harvesting efficiency of corn kernels. Attached Figure Description

[0024] Figure 1 This is a front-view stereoscopic structural diagram of the present invention;

[0025] Figure 2 for Figure 1 Enlarged structural diagram of section A in the middle;

[0026] Figure 3 This is a schematic diagram of the ventilated conveyor belt structure of the present invention;

[0027] Figure 4 for Figure 3 Enlarged structural diagram of section B in the middle;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention viewed from below;

[0029] Figure 6 This is a top-view three-dimensional structural diagram of the present invention;

[0030] Figure 7 for Figure 6 Enlarged structural diagram of section C;

[0031] Figure 8 This is a schematic diagram of the conveyor wheel structure of the present invention;

[0032] Figure 9 This is a partial cross-sectional view of the transport pipe of the present invention;

[0033] Figure 10 This is a schematic diagram of the transmission rod structure of the present invention;

[0034] Figure 11 This is a schematic diagram of the toothed plate structure of the present invention;

[0035] Figure 12 This is a schematic diagram of the sliding frame structure of the present invention.

[0036] In the diagram: 1. Engine; 11. Harvester; 12. Reel; 13. Conveyor wheel; 14. Grain-pulling claw; 15. Conveyor pipe; 16. Threshing machine; 17. Cutting knife; 2. Discharge mechanism; 201. Intake fan; 202. Striking frame; 203. Ventilated conveyor belt; 204. Conveyor plate; 205. Sliding guide rail; 206. Sliding block; 207. Limiting frame; 208. Sliding rod; 209. Anti-blocking block; 210. Limiting sliding rod; 3. Grinding mechanism; 301. Fixing ring; 302. Telescopic rod; 303. Sliding frame; 304. Plate teeth; 305. Mating teeth; 306. Transmission rod; 307. Baffle; 308. Protrusion block; 309. Fixing disc. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0038] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0039] Example 1

[0040] Please see Figure 1-8The present invention provides a technical solution: a corn harvester header, including an engine 1, a harvester 11 arranged on the front of the engine 1, a transport pipe 15 fixedly connected to the back of the harvester 11, a thresher 16 fixedly connected to the back of the transport pipe 15, a discharge mechanism 2 fixedly connected to the outer wall of the transport pipe 15, a grinding mechanism 3 movably connected to the front of the transport pipe 15 inside the harvester 11, a threshing device 12 movably connected to the top of the harvester 11, a conveyor wheel 13 movably connected inside the harvester 11, a grain-pulling claw 14 movably connected to the outer wall of the conveyor wheel 13, and a cutting blade 17 on the front of the harvester 11.

[0041] Discharge mechanism 2 includes:

[0042] The intake fan 201 is fixedly connected to the bottom of the transport pipe 15. The intake fan 201 blows upward, allowing the airflow to exit from the opening at the top of the transport pipe 15, blowing out the weeds and leaves that are fed in along with the corn cobs.

[0043] The striking frame 202 is movably connected inside the transport pipe 15.

[0044] Ventilated conveyor belt 203 is movably connected inside the transport pipe 15.

[0045] There are three intake fans 201 and three impact rotating frames 202, and the three impact rotating frames 202 are located inside the ventilation conveyor belt 203. Several conveyor plates 204 are provided on the outer wall of the ventilation conveyor belt 203.

[0046] Engine 1 drives thresher 16 to work via belt drive. Engine 1 drives conveyor wheel 13 to rotate via belt drive. Engine 1 drives reel 12 to rotate via belt drive. Conveyor wheel 13 drives ventilated conveyor belt 203 to move via conveyor belt structure. When ventilated conveyor belt 203 moves, it drives the conveyor belt through corresponding rollers to make the three striking frames 202 rotate.

[0047] The top of the transport pipe 15 has an opening, and two sliding guide rails 205 are fixedly connected to the top of the transport pipe 15. Sliding blocks 206 are movably connected to the top of each of the two sliding guide rails 205. A sliding rod 208 is provided at the top of the transport pipe 15, and the two ends of the sliding rod 208 are movably connected to the inside of the corresponding sliding guide rail 205. A limiting rod 210 is provided at the top of the transport pipe 15, and the two ends of the limiting rod 210 are movably connected to the inside of the corresponding sliding guide rail 205.

[0048] A limiting frame 207 is provided on the outer wall of the limiting slide bar 210 and the sliding bar 208, and the limiting frame 207 is movably connected to the outer wall of the corresponding sliding block 206. An anti-blocking block 209 is provided on the top of the opening at the top of the transport pipe 15, and the limiting slide bar 210 and the sliding bar 208 are fixedly connected to the anti-blocking block 209.

[0049] In use, the engine 1 is fixed inside the harvester, and the harvesting platform 11 is fixed to the front of the vehicle. The engine 1 is started, allowing the harvester to move across the field. The rake 12 sweeps the corn stalks into the harvesting platform 11. The corn stalks are then transported to the transport pipe 15 by the conveyor wheels 13. Under the action of the rake claws 14, the corn cobs are fed into the transport pipe 15 and into the thresher 16. Inside the transport pipe 15, the corn cobs are conveyed by the ventilated conveyor belt 203, and the transport plates 204 on the surface of the ventilated conveyor belt 203 further transport the corn cobs. Three intake fans 201 blow upwards, allowing airflow to exit from the opening at the top of the transport pipe 15, blowing out the weeds and leaves fed in along with the corn cobs. During the transport of the corn cobs, the striking frame 202 is driven to move, striking the ventilated transport belt 203 upwards, causing the corn on the ventilated transport belt 203 to be thrown upwards, preventing the corn cobs from pressing down on the weeds. The airflow generated by the intake fans 201 blows the weeds out from the top of the transport pipe 15, sending the corn cobs into the thresher 16 where they are processed into corn kernels.

[0050] When the airflow discharges the seeds from the air hole at the top of the transport tube 15, the two sliding blocks 206 move back and forth on the top of the corresponding sliding guide 205. The corresponding limiting frame 207 drives the limiting slide bar 210 and the sliding bar 208 to move left and right. The effect on the corresponding anti-blocking blocks 209 is that when the anti-blocking blocks 209 move left and right, the inclined edges on both sides of the anti-blocking blocks 209 will push the weeds stuck at the top opening of the transport tube 15 outward to prevent the weeds from blocking the opening. When the anti-blocking blocks 209 are moved to the edge of the limiting slide bar 210, they will move upward and hook the weeds upward through the raised part of the edge of the anti-blocking blocks 209 to prevent the weeds from blocking the opening of the transport tube 15.

[0051] Example 2

[0052] Please see Figure 1-12 Based on Embodiment 1, the present invention provides a technical solution:

[0053] The grinding mechanism 3 includes a fixed ring 301. A telescopic rod 302 is fixedly connected to the left side of the fixed ring 301, and the telescopic rod 302 is movably connected to the inside of the harvesting table 11 through a bearing. Five toothed plates 304 are fixedly connected to the right side of the fixed ring 301.

[0054] A fixed plate 309 is fixedly connected to the right side of the toothed plate 304, and a transmission rod 306 is fixedly connected to the right side of the fixed plate 309. The rotation of the conveyor wheel 13 can drive the transmission rod 306 to rotate through the conveyor belt.

[0055] A sliding frame 303 is movably connected to the outer wall of the toothed plate 304. The outer wall of the sliding frame 303 is fixedly connected to the corresponding toothed plate 304. A baffle 307 is fixedly connected to the inner wall of the harvesting table 11 on the front of the sliding frame 303. Several protrusions 308 are provided on the outer wall of the ventilation conveyor belt 203. The telescopic rod 302 will continuously extend and retract, so that the toothed plate 304 and the corresponding toothed plate 304 will continuously move relative to each other, which can tear the dry husks on the surface of the corn cob.

[0056] In use, when the corn cobs enter the inlet of the conveyor pipe 15, the transmission rod 306 is driven to rotate, which in turn drives the fixed plate 309 to rotate, causing the five toothed plates 304 to rotate and the sliding frame 303 to rotate. At the same time, the telescopic rod 302 continuously extends and retracts, causing the toothed plates 304 and their corresponding mating teeth 305 to continuously move relative to each other. This action, applied to the corn just fed into the top of the ventilated conveyor belt 203, causes the toothed plates 304 to tear the dry husks on the surface of the corn cobs with the mating teeth 305, and also tears apart some weeds that are fed in at the same time, turning the husks into small pieces. When the sliding frame 303 is moved left and right by the 320, the blades will move the corn cobs, causing relative friction between the corn cobs and the protrusions 308 on the surface of the ventilation conveyor belt 203. During the friction between the sliding rod 208 and the corn cob, the husks on the surface of the corn cob will be torn. When the three air intake fans 201 blow airflow inside the conveyor pipe 15, due to the large air intake volume, the excess airflow will flow to the harvesting table 11 and the thresher 16. This will cause the broken husks of the corn cob to be blown out, and some lighter weeds will be blown out from the top of the baffle 307.

[0057] When the corn cobs are transported inside the ventilation conveyor belt 203, the protrusions 308 reduce the area of ​​direct contact between the corn cobs and the top of the ventilation conveyor belt 203, which can reduce the situation where the corn cobs press down on the ventilation conveyor belt 203 under their own weight. By increasing the gas flow rate discharged from the sliding guide rail 205 through the ventilation conveyor belt 203, the weeds are more easily blown out by the airflow.

[0058] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A header for a corn harvester, comprising an engine (1), characterized in that: The engine (1) is provided with a harvesting platform (11) on the front. A transport pipe (15) is fixedly connected to the back of the harvesting platform (11). A thresher (16) is fixedly connected to the back of the transport pipe (15). A discharge mechanism (2) is fixedly connected to the outer wall of the transport pipe (15). A grinding mechanism (3) is movably connected to the front of the transport pipe (15) inside the harvesting platform (11). A threshing device (12) is movably connected to the top of the harvesting platform (11). A conveyor wheel (13) is movably connected inside the harvesting platform (11). A grain-pulling claw (14) is movably connected to the outer wall of the conveyor wheel (13). A cutting blade (17) is provided on the front of the harvesting platform (11). The discharge mechanism (2) includes: An intake fan (201) is fixedly connected to the bottom of the transport pipe (15); A striking frame (202) is movably connected inside the transport pipe (15); A ventilated conveyor belt (203) is movably connected inside the transport pipe (15); There are three intake fans (201) and three impact rotating frames (202), and the three impact rotating frames (202) are located inside the ventilation conveyor belt (203). Several conveyor plates (204) are provided on the outer wall of the ventilation conveyor belt (203). The engine (1) drives the thresher (16) to work via belt drive. The engine (1) drives the conveyor wheel (13) to rotate via belt drive. The engine (1) drives the reel (12) to rotate via belt drive. The conveyor wheel (13) drives the ventilated conveyor belt (203) to move via the conveyor belt structure. When the ventilated conveyor belt (203) moves, it drives the conveyor belt to rotate the three striking frames (202) via the corresponding rollers. The top of the transport pipe (15) is provided with an opening. Two sliding guide rails (205) are fixedly connected to the top of the transport pipe (15). Sliding blocks (206) are movably connected to the top of the two sliding guide rails (205). A sliding rod (208) is provided at the top of the transport pipe (15), and the two ends of the sliding rod (208) are movably connected to the inside of the corresponding sliding guide rail (205). A limiting rod (210) is provided at the top of the transport pipe (15), and the two ends of the limiting rod (210) are movably connected to the inside of the corresponding sliding guide rail (205). The outer walls of the limiting slide bar (210) and the sliding bar (208) are provided with limiting frames (207), and the limiting frames (207) are movably connected to the outer walls of the corresponding sliding blocks (206). The top openings of the transport pipe (15) are all provided with anti-blocking blocks (209), and the limiting slide bar (210) and the sliding bar (208) are all fixedly connected with anti-blocking blocks (209).

2. The header of a corn harvester according to claim 1, characterized in that: The grinding mechanism (3) includes a fixed ring (301), a telescopic rod (302) is fixedly connected to the left side of the fixed ring (301), and the telescopic rod (302) is movably connected to the inside of the harvesting table (11) through a bearing. Five toothed plates (304) are fixedly connected to the right side of the fixed ring (301).

3. The header of a corn harvester according to claim 2, characterized in that: A fixed disk (309) is fixedly connected to the right side of the toothed plate (304), and a transmission rod (306) is fixedly connected to the right side of the fixed disk (309). The rotation of the conveyor wheel (13) can drive the transmission rod (306) to rotate through the conveyor belt.

4. The header of a corn harvester according to claim 3, characterized in that: The outer wall of the toothed plate (304) is movably connected to a sliding frame (303), and the outer wall of the sliding frame (303) is fixedly connected to a mating tooth (305) on the corresponding outer wall of the toothed plate (304). The inner wall of the harvesting table (11) is fixedly connected to a baffle (307) on the front of the sliding frame (303), and the outer wall of the ventilated conveyor belt (203) is provided with several protrusions (308).

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