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4.2 MACHINE COMPONENTS
The Wallenstein Commercial Trailer Wood Chipper is
a rotor with blades for chipping wood. A feed hopper
moves the wood material into the rotor. Hydraulically
driven rollers in the throat of the feed hopper pull and
direct the wood material into the rotor. A hinged intake
panel with a "panic" shut-down bar is positioned over
the entrance to the hopper. A "U" shaped control lo-
cated at the entrance to the hopper controls the action
of the feed rollers.
Each rotor is designed with 2 blades, paddles and a
twig-breaker to generate the small pieces of wood.
A stationary knife at the rear of the rotor housing is
placed by the moving knives to shear, chip or chop
the material.
An engine is mounted on the frame to drive the rotor.
Fig. 1 PRINCIPLE COMPONENTS
A Feed Hopper
B Discharge Hood
C Rotor Housing
D Rotor Blade
E Stationary Blade
F Twig Breaker
G Hood Deflector
H Engine
J Centrifugal
Clutch
K Belt Drive
L Gas Tank
M Rotor
N Paddle
O Feed Rollers
P Hydraulic Pump
Q Hydraulic Motor
R Speed Sensor
S Hydraulic Tank
T Feed Table
U Panic Bar
V Feed Control
Power is transmitted through a centrifugal clutch on
the engine output shaft and through a V belt drive
system. A hydraulic pump is mounted on the forward
end of the rotor shaft to provide hydraulic capability to
the machine.
A controller is used to monitor and measure the rotor
speed and to control the roller speed. As the rotor
speed decreases, the feed roller speed is decreased
to prevent overloading the rotor. The display on the
controller can show the engine oil life, machine hours
or rotor RPM.
A
G
B
V
V
F
O
E
D
E
S
F
K
P
R
H
H
M
D
N
O
F
E
T
T
H
J
A
L
K
C
C
S
Q
Q
U
