How does a flexible header work?

The cutter of a normal header is rigidly attached to the header while flexible.

The cutter of the header is flexibly connected to the header, and the cutting part of the header floats up and down through the four-stalk mechanism. When working, the cutter carriage is always in contact with the ground, which can be profiled up and down, left and right, and can be partially profiled. The weight of the profiled part is supported by the elastic force of the ground and spring plates.

When the header is lowered, the deformation of the spring plate decreases, and the pressure of the carriage plate on the ground increases. When the header is raised, the deformation of the spring plate increases, and the pressure of the carriage on the ground becomes smaller. Therefore, according to the softness of the ground, the header is appropriately raised or lowered, so that the cut-off plate has a suitable pressure on the ground, which can not only make the cut-off plate push down the loose soil and stubble, but also do not push the soil to the cutter because the pressure of the cut-off plate on the ground is too much. When using, pay close attention to the profiling height, and raise and lower the header at any time to make it at a suitable profiling height.

The principle of flexible header is introduced and the actual photo is displayed, and the harvesting of crops in uneven plots depends on it! -

The flexible header should be adjusted in the following aspects when it is used.

1) Stubble height adjustment After the header is raised, there is a row of adjustment bolts on the lower side of the header, loosen the cap, screw the bolts upward, and the stubble becomes lower; Tighten the bolt downwards and cut the stubble higher. The adjustment amount of a row of bolts should be consistent, ensure that the tip of the knife is in a straight line, and lock the spare cap after adjustment.

2) Adjust the balance spring of the swing ring box of the cutting knife The swing ring box of the transmission cutter is hung on the body of the cutting table with a spring and floats up and down with the profiling mechanism, and the spring is adjusted through the bolt, which can make the header automatically profile with the ground to prevent the cutter from entering the soil.

3) Adjust the stabilizer spring The stabilizer spring can tension the drive belt of the pendulum ring box at any time to reduce the vibration of the pendulum ring box. When the header is working in muddy or soft conditions, the nut on the screw needs to be loosened to reduce the stabilizer spring pressure to reduce the pressure on the ground and prevent bulldozing.

4) Clean the lower part of the profiled carriage to prevent the accumulation of dirt, which causes the carriage to become very heavy, which affects the deflection performance of the header and causes the bulldozing phenomenon.

5) Auger adjustment By adjusting the adjusting lever on the right side of the auger, adjust the gap between the auger blades and the bottom plate, splashback baffle, rear side wall, etc., to solve the problems of uneven feeding and broken grains.

6) Floating roller height adjustment The height of the floating roller tensioning spring depends on the type of crop harvested, and the height of the spring when harvesting soybeans is 107 113 mm.

7) Adjustment of the preload of the conveyor chain When adjusting, the tension of the three-row chain rake should be the same, and when the chain is too loose, the chain and the gear are easy to bite the grains, and the crushing rate is increased.