20
Figures 2.5 and 2.6 show a square baler, which uses a piston mechanism to compress loose straw into square cubes. This type of baler can operate continuously in
the field without needing to stop when bales are unloaded. The baler is connected to
the tractor via a drawbar hitch with power for pickup and baling delivered through
the PTO. The main components of this type of baler are: (1) a pick-up reel to collect
scattered straw in the field, (2) a piston to compress the straw to a set density, (3) a
knotter consisting of a needle and tying mechanism, (4) a bale-length controller, and
(5) s bale-density adjuster. A flywheel minimizes load peaks on the PTO generated
Fig. 2.5 Square baler operating in the Philippines
4-Wheel Drive
Tractor
PTO drive shaft
Bale length
controller
Knotter
Bale density
adjuster
Compacting
chamber
Square
bale
Piston
Flywheel
assembly
Pick-up
reel
Rice
straw
Fig. 2.6 Schematic diagram of a square baler (top view)
C. Balingbing et al.
Figures 2.5 and 2.6 show a square baler, which uses a piston mechanism to compress loose straw into square cubes. This type of baler can operate continuously in
the field without needing to stop when bales are unloaded. The baler is connected to
the tractor via a drawbar hitch with power for pickup and baling delivered through
the PTO. The main components of this type of baler are: (1) a pick-up reel to collect
scattered straw in the field, (2) a piston to compress the straw to a set density, (3) a
knotter consisting of a needle and tying mechanism, (4) a bale-length controller, and
(5) s bale-density adjuster. A flywheel minimizes load peaks on the PTO generated
Fig. 2.5 Square baler operating in the Philippines
4-Wheel Drive
Tractor
PTO drive shaft
Bale length
controller
Knotter
Bale density
adjuster
Compacting
chamber
Square
bale
Piston
Flywheel
assembly
Pick-up
reel
Rice
straw
Fig. 2.6 Schematic diagram of a square baler (top view)
C. Balingbing et al.