How To Troubleshoot The "Running Grain" Failure Of The Farm Corn Combine Harvester

Farm corn combine harvester often show "grain runaway" phenomenon during work, which is what we often call grain leakage. Not only caused waste, but also caused unnecessary trouble for future crop planting. How to troubleshoot the "running grain" failure of the corn harvester? Don't worry. After reading the experience summarized by the following agricultural machinery experts, you can eliminate your doubts and worries:

Grasp the accurate forward speed and feed amount

Feeding stars is an important indicator to measure the efficiency of locomotives. If the rated capacity is exceeded, the farm corn combine harvester will be in an overload state. When harvesting, the driver should appropriately adjust the forward speed of the combine harvester according to factors such as the height of the rice and wheat straw and the output. The feed rate is controlled so that the forward speed, feed rate, threshing, separation, cleaning and other important links of the harvester work in harmony to avoid overloading.

Control the rotation speed of the bucket wheel

If the rotation speed of the plucking wheel is too high, the tooth extraction will have a large impact on the ear head, and the loss of grain will be heavy; if the rotation speed is too low, the stalk can not be pulled to the cutter in time when the plate is pulled, which will cause hard cutting, increase the vibration of the straw, and also Will increase drop loss. The rotation speed of the puller wheel should be matched with the forward speed of the harvester. In addition, if the position of the plucking wheel is too high, the plucking board hits the head of the ear, causing loss of shattering; if the status of the plucking wheel is too low, the cut straws will be thrown out of the machine with the rotation of the plucking wheel, causing loss of shattering. During operation, the height of the puller wheel should be adjusted in time according to the height of the farm corn combine harvester stalks, so that the puller point is 2/3 above the corn cutting line. For dwarf crops or inverted crops, the height of the bowler should also be reduced accordingly.

Fair adjustment of threshing gap

If the gap between the inlet and outlet of the concave plate is small and the rotation speed of the drum is high, it will be difficult for the straw to enter the next process, and the farm corn combine harvester kernels will not be discharged in time. Instead, they will continue to be hit by the high-speed drum and increase the crushing rate. The minimum gap for threshing should not be less than 4 mm. In addition, it is necessary to check whether the matching of the drum pulley and the power pulley is fair and accurate.

Mobile adjustment and cleaning of parts

For crops with low maturity and high humidity, the opening of the upper sieve of the small farm corn combine harvester should be as large as possible to avoid the impurity of the screen from clogging the pusher; for high maturity and drier crops, the upper sieve should be screened Just open 2/3 of the film. The opening of the lower sieve should be smaller than that of the upper sieve. When the upper sieve is fully opened, the lower sieve can be opened by 2/3. The opening of the upper sieve is reduced, and the lower sieve is also reduced accordingly.