*2.2. Working Mechanism*

The harvester uses a harvesting scheme that collects dandelion seeds using negativepressure blowers and separates seeds using the separation drum. A schematic representation of the operation of the harvester is shown in Figure 2. Before field operation, the height-adjusting device is adjusted so that the collection devices have an approximate height, and operation parameters of various devices are adjusted to their desired values. Thereafter, the harvester is set to work in the field.

**Figure 2.** Harvest operation diagram.


The separated seeds fall off in the seed storage tank and pass through holes on the concave board for separation. The separated pappi are discharged from the harvester by the impurity removal mechanism on one side of the harvester.
