RCI-1502 HRT Tele Boom Manual
The RCI-1502 System uses a dy namometer/tensiometer (also known as line-
rider) type load sensor which directly senses the line-pull generated when lifting
the load.
The dynamometer, or dyno for short, is a three-pulley arrangement load sensor
with a beam ty pe load cell (model RW5000) mounted within. The dyno
monitors the ho ist rope line-pull as the hoist rope passes t hrough the th ree
sheaves. The dyno sheaves must be suited to the diameter of the hoist rope.
The dynos are usually rigidly mounted on top of the boom base section towards
the outer end. Th ey are available in both single and twin winch versions. The
mounting base consists of a pair of angle irons complete with 4 off hi-tensile
black bolts, nuts and sprin g washers. It is usual to weld the bolt heads to the
boom top. Consult layout drawings at the rear of this manual for more details.
On some cranes where the angle bet
ween the boom tip and the hoist rope
varies greatly as the boom luffs up and down, an articulated arm assembly (or
universal arm) may be used to fix the dyno to one end of the arm and the other
end of the arm bolted or fixed to the boom. This universal arm a
llows the dyno
to follow the natural location/movement of the hoist rope relative to the boom
itself. It is available at
LSI-Robway
or can be fabricated on site to suit
application.
The load cell in the dyno will output an electrical signal proportional to the hoist
rope line-pull forces, the RCI-1 502 will then convert this into hook-load weight
in tonnes or kilopounds. Correctly foll
owing the calibration procedures is
essential for accurately determining the hook load weight.
Drawing References:
DWG 1393 – “Overall Dimensions, HRT-3MM Micro-Mini Dyno”
DWG 0875 – “General Arrangement, HRT-3MM Dynamometer”
DWG 0422 (Sheets 1-2 of 2) – “General Arrangement, HRT-3 Dyno”
DWG 0104, 0786, 0787 – “Parts List for HRT-3 Dynamometer”
DWG 0353 – “Exploded View & Parts List for HRT3-2 Double Dyno”
DWG 0552 – “General Arrangement, HRT3-2 Double Dynamometer”
DWG 0370 – “General Arrangement, Std Articulated Arm for Dyno”
DWG 2468T – “Typical Installation of Dyno on Telescopic Crane”
Typical installation of dynamometers/tensiometers on telescopic cranes
Содержание RCI-1502 HRT
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Страница 59: ...Appendix 8 1 Data Logging on RCI Systems ...
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