A wet storage corn double harvesting machine

By designing a wet-stored corn double harvester, which uses a separating roller and lever device to separate the straw and corn ears, and then baling them after crushing, the problem of low harvesting efficiency and high loss rate of corn combine harvesters in wet-stored corn is solved, and efficient double harvesting operation is achieved.

CN118489414BActive Publication Date: 2026-06-23INST OF CEREAL & OIL CROPS HEBEI ACAD OF AGRI & FORESTRY SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF CEREAL & OIL CROPS HEBEI ACAD OF AGRI & FORESTRY SCI
Filing Date
2024-06-20
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing corn combine harvesters are inefficient and have a high rate of corn kernel loss when harvesting wet-stored corn, and they cannot effectively separate stalks and corn ears, resulting in a reduction in product value.

Method used

Design a wet-storage corn double harvester, including a header, a corn ear processing mechanism, a straw crushing and throwing machine, an ear elevator, an ear crushing mechanism, and an ear baler. The straw and corn ear are separated by a separating roller and a lever device, and then the ears are baled after crushing, thus improving work efficiency.

Benefits of technology

This method enables simultaneous harvesting of wet-stored corn ears and stalks, improving work efficiency, reducing corn ear loss, and enhancing product value.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application belongs to the field of agricultural machinery, and particularly relates to a wet storage corn double harvesting machine, which comprises a vehicle body and a header arranged at the front end of the vehicle body, a corn ear processing mechanism and a straw smashing and throwing machine are further arranged on the vehicle body, the corn ear processing mechanism comprises an ear lifter and a bin, the ear lifter is connected to the corn ear discharging end of the header, the corn ear processing mechanism further comprises an ear smashing mechanism and an ear packer, the input end of the ear smashing mechanism is connected to the output end of the ear lifter, the output end of the ear smashing mechanism is connected to the input end of the ear packer, and the output end of the ear packer is arranged at the tail end of the vehicle body. The ear smashing mechanism and the ear packer for wet storage corn are added to the vehicle body, so that the ear smashing and packing are realized during harvesting, the working efficiency is improved, the vehicle body weight is avoided from increasing, the driving resistance is reduced, and the working efficiency is improved.
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Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery, specifically relating to a wet-storage corn double harvester. Background Technology

[0002] Wet-stored corn differs from ordinary dried corn. Wet-stored corn is harvested when the corn kernels have a moisture content of 30%-35%, and the whole ear of corn is directly crushed without peeling or removing the ears. The crushed wet kernels are stored and fermented, making them a high-quality concentrated feed for livestock.

[0003] Current corn combine harvesters use a cutter at the bottom of the header to cut the corn stalks and then press them down with a stalk pressure roller. This causes the lower end of the corn stalks to enter the header first. A separating roller in the middle of the header clamps the stalks. As the stalk pressure roller is pulled out, the separating roller supports the corn cob and pulls it off. The corn cob passes over the separating roller and enters the corn cob storage bin via a feeder. The stalks are then sent out from the stalk pressure roller below the separating roller to the crushing mechanism for crushing and throwing out.

[0004] If a corn combine harvester is used for harvesting wet-stored corn, the corn ears need to be fed into a crusher to be crushed and packaged for transportation and sale after harvesting. This involves many steps and is not very efficient. In addition, the high moisture content of wet-stored corn makes it heavier per unit volume, which is not conducive to increasing the working speed of the corn combine harvester.

[0005] However, corn combine harvesters are designed for mature corn, at which point the corn cobs are dry and firm, and the kernels are dry and hard. During the tearing process, the corn cobs can be collected relatively intact with a low loss rate. However, because the corn is not completely dry when it is harvested for wet storage, the corn cobs and kernels are relatively soft and brittle. After being separated by the separating rollers, a large number of corn kernels are mixed into the straw, which can only be sold as ordinary silage, reducing the product value. Summary of the Invention

[0006] In order to solve the problems existing in the prior art, the present invention provides a wet-stored corn double harvester, which can harvest both the ears and stalks of wet-stored corn, achieving simultaneous harvesting and improving work efficiency.

[0007] The specific technical solution adopted in this invention is as follows:

[0008] A wet-storage corn double harvester includes a vehicle body and a header mounted at the front of the vehicle body. The vehicle body also includes a corn ear processing mechanism and a straw crushing and throwing machine. The header has a corn ear discharge end and a straw discharge end. The straw crushing and throwing machine is connected to the straw discharge end of the header. The corn ear processing mechanism includes an ear elevator and a hopper. The ear elevator is connected to the corn ear discharge end of the header. The corn ear processing mechanism also includes an ear crushing mechanism and an ear baler. The input end of the ear crushing mechanism is connected to the output end of the ear elevator, and the output end of the ear crushing mechanism is connected to the input end of the ear baler. The output end of the ear baler is located at the rear end of the vehicle body.

[0009] The hopper is connected between the ear crushing mechanism and the ear baling machine. The ear baling machine includes a baler and a wrapping machine. The input end of the baler is connected to the ear crushing mechanism via the hopper, and the wrapping machine is located at the output end of the baler.

[0010] The cutting platform is equipped with dividing cones, and separating rollers are installed in the gaps between adjacent dividing cones. A lever device is installed on the upper side of the separating rollers, and a straw pressing roller is installed on the lower side. The straw pressing roller is located at the straw discharge end of the cutting platform. A conveying auger is located at the rear side of the lever device, and the end of the conveying auger forms the corn ear discharge end of the cutting platform.

[0011] The lever device includes a conveyor wheel and a conveyor chain. The conveyor wheel and conveyor chain are respectively set on the left and right side walls of the gap formed by adjacent dividing cones. A lever is set on the conveyor wheel and the conveyor chain. The setting height of the conveyor wheel is higher than the setting height of the conveyor chain. The rotation speed of the conveyor chain is the same as the vehicle's travel speed. The linear velocity of the lever on the conveyor wheel is greater than the vehicle's travel speed.

[0012] The movement trajectory of the lever of the conveyor chain is inclined above the separation rollers. The intersection of the first end of the conveyor chain and the lever of the conveyor wheel is located above the separation rollers, and the tail end of the conveyor chain is located on one side of the separation rollers.

[0013] The lever on the conveyor wheel has a curved C-shaped structure, with the inner arc of the lever facing the tail end of the conveyor chain.

[0014] The ear crushing mechanism includes a conveyor belt connected to the end of the ear elevator and a crushing roller connected to the end of the conveyor belt.

[0015] The beneficial effects of this invention are:

[0016] This invention employs a corn cob crushing mechanism and a corn cob baler added to the vehicle body, which enables the simultaneous crushing and baling of corn cobs during harvesting, thereby improving work efficiency. Furthermore, as the baled corn cobs are discharged, the weight of the vehicle body is not increased, driving resistance is reduced, and work efficiency is further improved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram showing the top view of the cutting platform;

[0019] Figure 3 This is a schematic diagram of the cutting platform structure.

[0020] In the attached diagram: 1. Vehicle body; 2. Cutting platform; 3. Straw crusher and thrower; 4. Ear lifter; 5. Hopper; 6. Baler; 7. Wrapper; 8. Separating cone; 9. Separating rollers; 10. Straw pressure roller; 11. Conveying auger; 12. Conveying wheel; 13. Conveying chain; 14. Ear crushing mechanism. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] Specific implementation examples Figure 1 As shown, the present invention is a wet-storage corn double harvester, including a vehicle body 1 and a header 2 disposed at the front end of the vehicle body 1. The vehicle body 1 is also provided with a corn ear processing mechanism and a straw crushing and throwing machine 3. The header 2 is provided with a corn ear discharge end and a straw discharge end. The straw crushing and throwing machine 3 is connected to the straw discharge end of the header 2. The corn ear processing mechanism includes an ear elevator 4 and a hopper 5. The ear elevator 4 is connected to the corn ear discharge end of the header 2. The corn ear processing mechanism also includes an ear crushing mechanism 14 and an ear baler. The input end of the ear crushing mechanism 14 is connected to the output end of the ear elevator 4. The output end of the ear crushing mechanism 14 is connected to the input end of the ear baler. The output end of the ear baler is disposed at the rear end of the vehicle body 1.

[0023] When the wet-storage corn double harvester of the present invention is working, it is equipped with a trolley that receives the corn stalks thrown out, and at the same time collects the crushed corn stalks thrown out by the ear baler. The ear and stalk are separated by the header 2. The ear is lifted to the ear crushing mechanism 14 by the ear elevator 4 for crushing. The crushed ear is then baled by the ear baler and thrown out, and is collected and transported by subsequent vehicles.

[0024] After being output through the straw discharge end of the cutter 2, the straw is crushed and thrown by the straw crusher and conveyor, thus completing the straw discharge.

[0025] The ear lifter 4 is an upward-sloping conveyor belt, which is fitted inside a sleeve to prevent straw from interfering with the ear lifting.

[0026] Furthermore, such as Figure 1 As shown, the hopper 5 is connected between the ear crushing mechanism 14 and the ear baling machine. The ear baling machine includes a baler 6 and a wrapping machine 7. The input end of the baler 6 is connected to the ear crushing mechanism 14 via the hopper 5, and the wrapping machine 7 is located at the bale output end of the baler 6.

[0027] The baler 6 and wrapping machine 7 are commercially available and mature solutions. The baler 6 uses baler 6 to bundle the crushed fruit fragments into round bundles, which are then discharged and rolled into wrapping machine 7. The wrapping machine 7 uses plastic film to seal the fruit bundles.

[0028] Furthermore, such as Figure 2 and Figure 3 As shown, the cutting platform 2 is provided with a dividing cone 8, and a separating roller 9 is provided in the gap between adjacent dividing cones 8. A lever device is provided on the upper side of the separating roller 9, and a straw pressing roller 10 is provided on the lower side. The rear side of the straw pressing roller 10 is the straw discharge end of the cutting platform 2. A conveying auger 11 is provided on the rear side of the lever device, and the end of the conveying auger 11 forms the corn ear discharge end of the cutting platform 2.

[0029] As the vehicle body 1 moves forward, the dividing cone 8 of the header 2 feeds the corn rows into the separating rollers 9. The separating rollers 9 clamp the corn stalks, and the cutter on the lower side cuts the corn stalks. Due to the rotation of the separating rollers 9, and the auger structure formed by the steel bars wound around the roller surface of the separating rollers 9, the straw pressure rollers 10 on the lower side crush and pull the stalks downward. Since the gap width between the two roller shafts of the separating rollers 9 is 1-2cm, the corn stalks can be squeezed through, but the corn ears cannot pass through because their diameter is much larger than this gap and cannot be completely destroyed by the auger structure on the separating rollers 9. This achieves the effect of separating the stalks and ears. With the help of the set lever device, the ears are pushed to lie down, which is conducive to the separation and transportation of the ears.

[0030] Furthermore, the lever device includes a conveyor wheel 12 and a conveyor chain 13. The conveyor wheel 12 and the conveyor chain 13 are respectively disposed on the left and right side walls of the gap formed by adjacent dividing cones 8. A lever is disposed on the conveyor wheel 12 and the conveyor chain 13. The height of the conveyor wheel 12 is higher than the height of the conveyor chain 13. The rotation speed of the conveyor chain 13 is the same as the travel speed of the vehicle body 1. The linear velocity of the lever on the conveyor wheel 12 is greater than the travel speed of the vehicle body 1.

[0031] When in use, the ear of corn is positioned above the lever device. After the straw enters the gap between the separating rollers 9, the lower end of the straw is held by the separating rollers 9, the conveyor chain 13 supports the straw, and the rapid rotation of the conveyor wheel 12 strikes the straw. Because the wet-stored corn straw has not yet withered and has a high moisture content, it is flexible and bends, with the upper end of the straw rolling into the gap between the separating rollers 9. Figure 3 As shown, the corn cob is in a tilted or tip-down position when it contacts the separating roller 9. Since the upper end of the straw passes through the gap of the separating roller 9 and is pulled, the force exerted by the separating roller 9 on the corn cob is reversed and directed towards the connection point between the corn cob and the straw. This makes it easier to break off the corn cob, avoids forcibly tearing the tough straw, prevents grain loss caused by prolonged friction between the corn cob and the separating roller 9, and improves the harvest rate.

[0032] Furthermore, the movement trajectory of the lever of the conveyor chain 13 is inclined above the separating roller 9, the first end of the conveyor chain 13 overlaps with the lever of the conveyor wheel 12 above the separating roller 9, and the tail end of the conveyor chain 13 is located on one side of the separating roller 9.

[0033] The inclined setting of the conveyor chain 13 avoids the straw when it is dumped, ensuring that the upper part of the straw and the corn cob fall smoothly into the gap of the separating roller 9.

[0034] Furthermore, such as Figure 2 As shown, the lever on the conveyor wheel 12 has a curved C-shaped structure, with the inner arc of the lever facing the tail end of the conveyor chain 13.

[0035] The straw is pushed down by a lever set on the conveyor wheel 12. The C-shaped lever ensures that the process is smooth and prevents it from falling off midway.

[0036] Furthermore, the ear crushing mechanism 14 includes a conveyor belt connected to the end of the ear elevator 4 and a crushing roller connected to the end of the conveyor belt.

[0037] The crushing roller is equipped with crushing blades, and the rotating crushing roller crushes the corn ears fed in by the conveyor belt.

Claims

1. A wet-storage corn double harvester, comprising a vehicle body (1) and a header (2) disposed at the front end of the vehicle body (1), wherein the vehicle body (1) is further provided with a corn ear processing mechanism and a straw crushing and throwing machine (3), the header (2) is provided with a corn ear discharge end and a straw discharge end, the straw crushing and throwing machine (3) is connected to the straw discharge end of the header (2), the corn ear processing mechanism comprises an ear elevator (4) and a hopper (5), the ear elevator (4) is connected to the corn ear discharge end of the header (2), characterized in that: The corn cob processing mechanism also includes a corn cob crushing mechanism (14) and a corn cob baler. The input end of the corn cob crushing mechanism (14) is connected to the output end of the corn cob elevator (4), and the output end of the corn cob crushing mechanism (14) is connected to the input end of the corn cob baler. The output end of the corn cob baler is located at the rear end of the vehicle body (1). The cutting platform (2) is provided with a dividing cone (8), and a separating roller (9) is provided in the gap between adjacent dividing cones (8). A lever device is provided on the upper side of the separating roller (9), and a straw pressing roller (10) is provided on the lower side. The straw pressing roller (10) is located at the rear side of the cutting platform (2). A conveying auger (11) is provided at the rear side of the lever device. The end of the conveying auger (11) is formed as the corn ear discharge end of the cutting platform (2). The lever device includes a conveyor wheel (12) and a conveyor chain (13). The conveyor wheel (12) and the conveyor chain (13) are respectively set on the left and right side walls of the gap formed by adjacent dividing cones (8). The conveyor wheel (12) and the conveyor chain (13) are respectively equipped with levers. The setting height of the conveyor wheel (12) is higher than the setting height of the conveyor chain (13). The rotation speed of the conveyor chain (13) is the same as the travel speed of the vehicle body (1). The linear velocity of the lever on the conveyor wheel (12) is greater than the travel speed of the vehicle body (1). When in use: The height of the corn cob is above the lever device. When the straw enters the gap of the separating roller (9), the lower end of the straw is held by the separating roller (9), the conveyor chain (13) supports the straw, and the straw is hit by the rapid rotation of the conveyor wheel (12). The wet stored corn straw is flexible and bent. The upper end of the straw is rolled into the gap of the separating roller (9). The corn cob is in a tilted state or with the tip facing down and contacts the separating roller (9). The upper end of the straw passes through the gap of the separating roller (9) and is pulled. At this time, the force of the separating roller (9) on the corn cob is changed to the opposite direction to the connection point between the corn cob and the straw, and finally the corn cob is broken off.

2. The wet-storage corn double harvester according to claim 1, characterized in that: The hopper (5) is connected between the ear crushing mechanism (14) and the ear baling machine. The ear baling machine includes a baler (6) and a wrapping machine (7). The input end of the baler (6) is connected to the ear crushing mechanism (14) via the hopper (5). The wrapping machine (7) is located at the output end of the baler (6).

3. The wet-storage corn double harvester according to claim 1, characterized in that: The movement trajectory of the lever of the conveyor chain (13) is inclined above the separation roller (9). The first end of the conveyor chain (13) overlaps with the lever of the conveyor wheel (12) above the separation roller (9), and the tail end of the conveyor chain (13) is located on one side of the separation roller (9).

4. The wet-storage corn double harvester according to claim 1, characterized in that: The lever on the conveyor wheel (12) has a curved C-shaped structure, with the inner arc of the lever facing the tail end of the conveyor chain (13).

5. A wet-storage corn double-harvest machine according to claim 1, characterized in that: The ear crushing mechanism (14) includes a conveyor belt connected to the end of the ear elevator (4) and a crushing roller connected to the end of the conveyor belt.