At this meeting I will discuss about SHAFT
CRANK
just let us refer artrikel below about
Poros Crank:
Crankshaft is a component of the machine
that works to change the alternating straight motion pelantara piston with
piston rod into rotary motion. on the part of the piston rod mounted crank
(Crank Pin) while mounted on the cylinder block is called (Crank Journal). to
maintain the balance of the current round of machine work, the crankshaft is
equipped with ballast weights (balance) the other part there is a hole oil
channel to distribute lubricating oil in the bearing crank journal and pen
pads.
the forces acting on the crankshaft is high
because the peak pressure of the burning shaft and the inertial force of
rotating parts. The main requirements of the crankshaft is power, endurance, and good mechanical strength and the direction of the longitudinal direction
prop shaft journal, the more bearings that hold to crank amount the same, the
more rigid shaft crank. ignition sequence, in order to ensure uniform
rotation in the machine, the power must be within the same impulse. This
consideration along with the requirements of balance determines the swing
setting the crankshaft and the ignition sequence. dimensional size of the
crankshaft is chosen and confirmed to meet standard requirements, which are
determined by the law of Lloyd with the equation:
Where,
d = shaft diameter (mm)
D = Diameter Cylinder (mm)
L = distance between the center bearing
(mm)
S = Step Piston (mm)
A = Constant four-cylinder motors = 0.099
B = Constant four-cylinder motors = 0.036
Poros Image crank shape:
So discussion of the crank shaft
Thank may be useful
