Know the "corn harvester"

When the corn is mature or nearly mature, agricultural machinery and equipment for harvesting corn stalks are mechanically completed according to agronomic requirements. It is a new type of agricultural machinery researched and developed for the development of new energy sources and the reduction of the labor intensity of farmers' friends. It is a kind of agricultural machinery with a low price suitable for the popularization of rural small four-wheels and supporting the harvesting of corn stalks. It shortens the working cycle of farmers' friends and frees them from heavy physical labor.

working principle

Mainly consists of cutting device, conveying device, hydraulic lifter and so on. During operation, the machine moves along the direction of corn ridges, and the knife cuts the corn stalks. The stalks are output through the right side of the upper, middle and lower conveyor chains and are naturally placed to complete the harvest. The separation of power is the hydraulic lifting system of the driver operating the tractor. After the host is lifted up to the stop position, the two B-shaped V-belts will stop rotating, cut off the power input of the diesel engine, realize the separation of power, and the cutting knife. The conveyor will stop rotating. Otherwise, it will be in working rotation.

Installation and commissioning

installation

1: Check if the front bumper of the tractor is horizontal. If it is not horizontal, correct it before installing the crane.

2: Install the lifting frame on the tractor's bumper, then use the pressure plate to press it through the screw, and then connect one end of the two diagonally-stretched beams to the lifting frame, and connect the other end to the connection seat welded on the tractor frame. fixed. Make sure the machine has good stability.

3: The connection between the host and the elevator is through the four U-shaped cards on the host and the two front supports at the lower part of the lifting frame. The two U-shaped cards on the upper part of the lifting frame pass through four cylindrical pins, and two movable lifting plates put the host Connected to the crane. 4: The diesel engine and the reducer of the harvester are connected with two B-type V-belts. After installation, do not tighten the tensioner tightly. In the case of normal harvesting, as long as there is no phenomenon of slippage of the belt.

5: After the assembly is completed, it should be idling for 5 minutes, and then run for 6 minutes at a high speed. After checking that there is no abnormality in each part, you can work in the field.

6: The adjustment of cutting height is achieved by the adjustment screw of the lifting frame. Before harvesting, first adjust the cutter to contact with the soil surface, then lock the screw to perform a trial cut to see if the cutting situation is appropriate. If it is not appropriate, adjust it to meet the requirements and start harvesting.

7: Since the harvester is transported on the right side, when harvesting in the field, the harvesting method for improving the efficiency is to revolve around the land.

8: The cutting knife is made of alloy steel. After being used for a period of time, especially after the sand is used, the edge part of the knife is worn and blunt. At this time, it is necessary to grind the cutting edge with a portable grinder to facilitate power saving during harvesting. However, when cutting edge, it is necessary to prevent overheating and drop water to reduce the durability of the cutting edge. The corn harvester uses machinery to complete the agricultural machinery and equipment for harvesting corn stalks according to agronomic requirements when the corn is ripe or near mature.

working principle

Mainly consists of cutting device, conveying device, hydraulic lifter and so on. During operation, the machine moves along the direction of corn ridges, and the knife cuts the corn stalks. The stalks are output through the right side of the upper, middle and lower conveyor chains and are naturally placed to complete the harvest.

The separation of power is the hydraulic lifting system of the driver operating the tractor. After the host is lifted up to the stop position, the two B-shaped V-belts will stop rotating, cut off the power input of the diesel engine, realize the separation of power, and the cutting knife. The conveyor will stop rotating. Otherwise, it will be in working rotation.

Harvester classification:

Portable harvester

Divided into side-mounted and backpack type: 1 side-mounted automatic harvester using hard-axis transmission, mainly by the engine, transmission system, clutch, working parts, controls and side-mounted belts and other components. A single-cylinder two-stroke air-cooled gasoline engine of 0.75 to 2 kilowatts and a centrifugal friction clutch are disposed on one end of the propeller shaft; the other end is equipped with a working component consisting of a reducer and a cutting tool. There are many types of working parts, commonly used are circular saw blades, blades or nylon filaments. During operation, the hooks on the aluminum alloy bushing of the transmission shaft are hung on the strap under the operator's shoulder, and the handle is held and the hard shaft is laterally oscillated to complete the cutting of weeds and shrubs. The machine weighs about 6 to 12 kilograms and the speed is about 4500 to 5000 rpm. 2 piggyback automatic harvesters. With a flexible shaft drive, the general structure is similar to the side-mounted brush cutter, except that the engine is back on the operator's back, and the cutting part is driven by a flexible shaft. The engine power is generally 0.75-1.2 kilowatts. Two points are connected between the engine and the back frame and special rubber parts are provided for vibration isolation. The flexible shaft is a flexible shaft of wire wrapped in a hose to transmit torque. The hose is a threaded tube wrapped with a steel braid encased in a metal woven mesh covered with a rubber protective cover, and penetrates into the shaft with dust-proof soil and retains the lubricant on the surface of the shaft. The cut width is generally between 1.5 and 2 meters.

Hand-held harvester

The traveling wheel supports the weight of the implement, and the person pushes the machine forward to drive the working part by the engine to perform the cutting irrigation operation. Its structure and working principle are similar to portable brush cutters.

Suspended harvester

Suspended behind the tractor, the power output shaft drives the rotation of the working part, suitable for large-area cutting operations. Mainly by the rack, saw blade, transmission, suspension and push plates and other components. During the irrigation operation, the tractor runs backwards, working at a speed of 5 km/h and can saw a bush with a diameter of 10 cm.

The development trend of the harvester

The development trend of the harvester is to use new materials to further reduce the weight; adopt low-vibration engine and advanced vibration isolation device and rationally configure the parts to reduce the harm of vibration to the human body; improve the machining and assembly precision of the machine, improve the suction Exhaust system to reduce noise; Add a variety of safety protection devices to improve the safety of operations; Additional shrub shredding device on the mounted brush cutter to simplify the cleaning process to cut the shrubs.

Harvester safety operation requirements

1. Before the harvester works, roads and fields shall be surveyed, and clear marks shall be set on dangerous sections and obstacles. 2. When maintaining, overhauling and troubleshooting the harvester, it is necessary to cut off the power and carry it out after the engine is turned off. When carrying out mechanical maintenance or overhaul under the header, it is necessary to lift the header and secure it with a safety bracket or pad. After confirming safety, it is forbidden to use open flame lighting when maintaining machinery or adding fuel at night.

3. When unloading food, people are not allowed to enter the granary and are not allowed to use iron tools and other tools to reach into the granary.

4. When the plot is transferred, lift the table to the highest position and lock it. It is forbidden to use the table to carry the cargo.

5. At any time, check whether the seats and backrests of the food-receiving personnel are firm and reliable.