A round baler is a machine that produces large round bales of feed and bedding by collecting crops. It is powered by a tractor’s PTO shaft and has several important parts, including rollers, tines, belts, wheels, twine rollers, and hydraulic cylinders. The bale is made round by pick up tines and tine guides, and when it reaches the desired size, it is tied with twine and emptied from the baler.
There are several groups of baler parts, from the pickup to the main frame. Rollers, picking tines and belts are some of the most important parts of the baler. Some of the less obvious, but important parts of the baler are the wheels, twine rollers and hydraulic cylinders. Other key parts include the frame, hitch and drive shaft.
A round baler is a device that is pulled behind a tractor and produces large round bales of feed and bedding by collecting the crops that have been cut and left to dry in the wind and sun. The baler does not have its own power plant. The baler receives power from the tractor in the form of a power take-off (PTO) shaft which is coupled to the tractor. A small shaft emerging from the rear of the tractor, just above the hitch, is powered by the tractor’s transmission. The cardan shaft, one of the parts of the round baler, is coupled to this shaft and sends power from the tractor to the baler.
Some of the internal parts of the baler responsible for making the bale round are the pick up tines and tine guides. These tines are long wire-like devices that rotate within the tine guides and pick up the crop and direct it to the inside area of the baler. There are several parts that work in unison to harvest the crop and all these baler parts work off the PTO unit. The crops are directed to other parts, as wide belts begin rolling the crops in a motion that initiates the center section of the round bale. The large rollers are mounted on hydraulic cylinders and ride on tracks which allow tension to be adjusted and the bale to be taut as it falls.
As more and more crop material enters the pick-up tines and joins the falling bale, the bale grows and begins to take up more space inside the baler frame. When the bale reaches the optimum size, an indicator roller is activated and a sensor sends a signal to a light fitted inside the tractor cab indicating that the bale has reached the desired size. The operator then activates a rope reel, which spins the bale and wraps the twine around the bale, effectively tying it. The twine is cut by parts of the baler known as knives and the operator then empties the bale from the baler.
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