|
|
|
|
|
|
|
|
|
||
|
|||||||||
|
|||||||||
|
|
|
|
|
|
|
|
|
||
|
|||||||||
|
|||||||||
|
An international manufacturer of large hydraulic motors had a need to count rotations and find angular position of their crankshaft. These hydraulic motors are used in many industries requiring large output motors:
Pulp and paper production Mining Steel making Chemicals Food Processing Construction Material handlingThe hydraulic motors provided power in various applications
where electric motors or internal combustion engines would not be appropriate. While other
types of engines or motors may ultimately be used to pressurize the hydraulic fluid in the
hydraulic motors, they can be located in a remote location with hydraulic fluid lines
connecting them.
The end of the crankshaft, which is immersed in hydraulic oil, is in a sealed compartment. It already has threads in the end of it which has a plug that seals in the high pressure hydraulic fluid. By providing this company with two separate couplings, Helical was able to mechanically connect the driveshaft to an encoder mounted outside the crankcase. The coupling inside the crankcase serves several functions. It is threaded on one end with wrench flats that allow it to be tightened into the end of the crankshaft. This not only mounts the coupling to the crankshaft, but also seals the high pressure internal passages of the crankshaft from the crankcase. On the other side of the flexure an extension shaft riding in oil seals protrudes outside the side motor cover. Another coupling then connects this extension shaft to the encoder. The encoder is mounted to the outside of the crankcase.
|
|
|
|
|
901 W.
McCoy Lane · P.O. Box 1069 · Santa Maria, CA 93456-1069 Phone: 805-928-3851 · Fax: 805-928-2369 sales@heli-cal.com · engineering@heli-cal.com |
|
Copyright © 1997-2007 Helical Products Company, Inc. -- All rights reserved. |
|
We
manufacture single piece 
