E.H. Wachs 08-051-MAN User Manual - page 11
Chapter 1, About the Subsea Wire Saw: Equipment Description
E.H. Wachs
Part No. 08-051-MAN, Rev. 1-0709
7
The feed system has a self-adjusting speed control feature.
A hydraulic actuator on the tension wheel fixture measures
the deflection of the wire as it cuts. If the feed speed is too
fast, the increased wire deflection trips the actuator, which
slows down the feed rate. This allows the cutting action of
the wire to catch up. At maximum deflection of the wire, the
actuator will stop the feed motion for as long as necessary.
Figure 1-5. The actuator controls the feed rate by
measuring the deflection of the cutting wire.
Clamping System
An adjustable clamping system allows you to configure the
machine for pipe sizes within each model’s range. The two
clamping arms are attached to the main frame with two-
pronged forked pins that are removable to reposition the
arms.
The clamping arms are engaged by hydraulic cylinders
mounted to the frame. When the cylinder rods are extended,
the clamps pivot inward to grip the underside of the pipe
and hold the machine securely to it. Figure 1-6 illustrates
the clamping operation.
See the end of this chapter for drawings that illustrate clamp
position settings for the range of each wire saw model.
Feed control actuator
Tension wheel
Tension spring