The Working Principle Of The Farm Corn Combine Harvester Chopper

The chopper is one of the more power-consuming functional parts in the farm corn combine harvester, and farm corn combine harvester work quality is also affected by many factors.

Poor blade shape design will double the power consumption and cause undesirable results such as vibration; poor interface handling can easily cause blockage, etc. Another function of the blade is to ensure the shredding quality of the material, so from a design perspective, the arrangement pattern of the blade on the shredder drum, the shape of the blade, and the interface method should be considered first. Due to the blade type and the transition interface of the shredder, the traditional shredding device often exhibits problems such as uneven shredding length and easy clogging, which causes damage to the relevant parts of the farm corn combine harvester.

The working principle of the farm corn combine harvester chopper

After the stems are thrown from the document walker or the respective rollers, they fall onto the material deflector. After the material enters the chopper along the deflector, the stem is crushed under the combined action of the high-speed rotating moving blade and the fixed blade. At the same time, under the action of the strong airflow generated by the high-speed rotation of the movable blade, the stems are thrown from the spreader. In order to make the shredder work stably and reduce vibration, the dynamic balance level of the shredder drum after the installation of the movable blade is designed to be 6.3, and the maximum dynamic balance is 1.471N.m after theoretical calculation.

Application and Adjustment of Chopper of Farm Corn Combine Harvester

1. Cutting length adjustment

When working, the cutting length of the material can be adjusted as needed. When harvesting different crops or in different harvesting periods, the position of the fixed knife holder handle can be adjusted. The lower the position of the handle, the greater the overlap between the movable blade and the fixed blade, and the better the chopped effect on the crop. However, the chopper consumes more power, so when the stalk scale chopping request is met, the handle position should not be adjusted too low as much as possible.

2. Blade exchange

Damage to the movable blade can cause vibration, so when the movable blade is damaged, it must be replaced in time. After one side of the blade is damaged, the other side of the blade can be replaced. When the blade needs to be replaced, the weight of the new blade should be equal to the original blade base. When the number of blades is large, the dynamic balance should be performed again.

3. Stem Disperser

Before the shredder of the farm corn combine harvester is applied, it is necessary to install a stalk sprayer with a guide plate, which not only plays a role of throwing but also acts as a protective cover. Adjust the stalks by adjusting the angle of the deflector spreading symmetrically on the left and right sides of the sprayer projection interval and width.