Structure
: The Gang Saw structure is made up of high quality steel and
consists of four columns duly connected and welded with cross beam
to ensure maximum stability in resisting mechanical impacts to which
it is subjected to during sawing.
For
brisk cutting the machine is bound by rectilinear long run
motion. The rugged duly stress relived blade rack frame
accommodates the tensioning of diamond blades up to 12 tons each
blade. The reciprocating motion guarantees friction of the
segments in both the directions, thus allowing the cutting of the
block. The reciprocating motion of blade rack is governed by oil
bath bearing rollers and its adjustable in all direction to take
care of stretching and deformation of blade rack.
The
bearing rollers are always in contact with the slide rim by
means of spring loading Bellevelle washer duly tensioned by
adjusting pin. The blade rack is moved by double connecting rods
which are placed at the both ends of blade rack which ensures that
its movement remains perfectly rectilinear without any deviation
even when more blades are on one side of rack and the block are of
different sizes. The main advantage of double connecting rod is that
all energy and mechanical thrust toward the blade rack are evenly
spread.
The
block trolley platform is situated between the four columns and is
elevated by 90 mm diameter worm screws and heavy duty lead
nuts attached to the four columns. These worm screws are
protected from outside by protective casing. All the worm screws
work together by means of transmission shaft and chain system duty
coupled to motor and reduction gear box. The lifting platform runs
on two plain and two prismatic vertical slide-ways which are
hard chrome plated to ensure durability and protection against rust.
These plain and prismatic slide ways ensure absolute precision of
the platform climb. The prismatic slide ways prevent any deviation
or tilting away from the vertical axis.
The
battery unit consists of ultrasonic tested shaft of 280 mm
dia mounted an heavy duty bearings which are enclosed in steel
pedestals duly stress relieved. Both ends of the shaft are connected
with alloy steel shafts to run connecting rods. High grade quality
cast iron flywheel is mounted on the shaft.
The
electric motor activates the flywheel via transmission
pulley. The surface contract area of motor shaft is too small
and its speed too high for a direct connection with the flywheel.
The transmission pulley reduces the angles of the belts thus
increasing the contact surfaces as well as reducing the speed
between the motor shaft and flywheel. All components such as shafts,
joists and chain are covered. The down feed / fast raising mechanism
protected from outside elements.