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At present, China has formed three major corn production areas. One is the northern corn area, including the three northeastern provinces, Inner Mongolia, Hebei, Shanxi, and Tianjin, and the sown area covers about 40% of the country; the second is the Huanghuai plain corn area, including Shandong, In Henan, Jiangsu and other regions, the sown area accounts for about 25% of the country; Third, the southwest hilly corn area, including Yunnan, Guizhou and other regions, sowing area accounts for about 15% of the country. According to the 50% machine yield calculation, the country needs more than 100,000 corn harvesters. The reality is that the yield of corn machines in China is less than 2%, which is far lower than the harvest rate of 70% of wheat and 20% of rice. Mechanized harvesting of corn has become a bottleneck restricting the development of agricultural mechanization. Therefore, it has become an urgent task to accelerate the development of corn harvest mechanization.

Small corn harvester and small corn harvester operation method According to the progress of agricultural mechanization, the majority of farmers' friends are eager to get rid of the heavy manual labor of corn harvesting, and urgently need a corn harvesting machine that can harvest corn ear and chop straw. Our factory developed the 4YB-2 small corn harvester that fills the gap in the province in response to the wishes of the majority of farmers.
Small corn harvester process:
The small corn harvester picks the corn in the growing state of the corn (called the station culm picking), and the handle is pulled off under the action of the picking roller and the picking plate. Due to the difference in height between the inner and outer rollers, the ears fall into the ear box, and the bins are opened and the stack is opened. The cutter rotating at a high speed cuts the straw from the root and enters into a shredding device that is 3-5 cm long and is chopped. The chopped straw naturally falls to the ground. The ears are then transported to the field and threshed after drying.
Henan Shengguan Machinery also has corn ear stripping machines and corn harvesters.
When purchasing this machine, it can be purchased from the whole machine (harvesting machine + tractor), or it can be purchased separately and used with the existing tractor. The factory is responsible for guiding the assembly and debugging.

Economic effects of production and application of small corn harvesters:

The technical performance indicators for the production and application of corn harvesters are: net harvest rate of small corn harvesters ≥ 90%, ear loss rate < 3%, grain breakage rate < 1%, ear spike content <5%, returning stem cutting Breakage pass rate> 95%, stay height <100 mm, use reliability> 90%.

In the case of reaching the above technical indicators, the productivity of the corn harvester is a key factor in determining its technical and economic indicators. The harvesting of general maize mechanization completes tasks such as picking the ears, peeling to collect the panicles, and smashing and returning the straw to the fields. The operating cost per mu is 40-60 yuan, and the operating productivity of a single harvester is 2-3 mu. The operation of the double-row harvester is completed. When the productivity is 4-6 mu, the productivity of the three-row harvester is 8-10 mu, and the productivity of the four-row harvester is about 12 mu per hour. The production period of a harvest season is approximately 15-25 days. It takes about 2 to 3 years to calculate the return on investment by using half the efficiency of the implement.

Small corn harvester machine advantages:

● Machine: The small corn harvester can harvest corn at different rows. It has the advantages of strong adaptability, simple installation, convenient maintenance, safety and reliability.

● Header: Adopting a front-mounted header, the width is larger than the width of the matching host, and it can be opened by itself; using hydraulic lifting, flexible operation, good maneuverability, and can control the ground clearance of the header at any time; active feeding with single-side reeling wheels Into the way, you can achieve full-range harvest.

● Picking roller: The new welding picking roller can greatly improve work performance. The unique pick roller guard design can significantly reduce the breakage rate of the ear.

● Grain unloading: High-level rotary hoppers can be used to unload food and can be directly unloaded into transport vehicles, which improves work efficiency.

● Straw treatment: After the machine cuts off the device, the power consumption is small, and the straw is cut off, which facilitates the straw processing in the next step and reduces the loss rate of the ear.

● Exclusion: The combined structure of a fan and a discharge roller is adopted to reduce the number of stems and leaves that enter the debarker and improve the cleanliness of the harvest.

● Elevator: Double-row chain structure is adopted to increase the strength of scraper connection and improve the reliability of operation;

Small corn harvester performance features advantages:

● This machine adopts the forced reel feeding method and the additional picking mechanism matched with the supporting rod to achieve the corn harvesting at any planting spacing within the width of the picking table, and the adaptability is greatly improved; the supporting pole pair sags. Ears have instant righting effect, which greatly reduces the breaking rate of drooping fruit spikes.

● This machine adopts a front-mounted picking table, which is wider than the width of the supporting power locomotive, can open the way by itself, and realizes that the corn harvester can enter the work from any position in the field, and solves the problem that the traditional hanging corn harvester must be cut by hand firstly. Auxiliary work channel technical problems. /span>

● This machine has the advantages of simple structure, convenient and convenient hanging and disassembling, light weight, flexible operation, convenient maintenance, safety and reliability compared with the current domestic similar products.

● High-level food unloading: The food can be directly unloaded to the transporter, which is convenient, fast, time-saving, and labor-saving.

● Low ear inclusion rate: Cleaning roller in the cleaning device can discharge the broken corn stalks in the course of conveying them with the ear (before entering the ear box): The fan can blow out the corn leaves and other debris Keep the ears in the ear box clean.

● The lifting and lifting of the hydraulic control picking table and the turning of the ear box can control the ground clearance of the picking table at any time and at any place, which is convenient, quick, and time-saving.

● The corn ear has poor fluidity. The use of horizontally moving ear box and telescoping elevator support can make the ear box full and improve the utilization of the ear box. No personnel is required to enter the ear box to assist in unloading food.

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