MTS Series 215 Rotary Actuator - Manual (Page 34)

Series 215 Rotary Actuator Product Manual 34
Diaphragm Flexure Installation
Installation
Diaphragm Flexure Installation
Depending upon user requirements, the end of the actuator rotor shaft can extend
beyond the flange, be flush with it, or be recessed into the flange adapter to allow
the use of the inside diameter as a pilot diameter.
Diaphragm flexures are used to reduce the potentially damaging effects of large
axial and lateral deflections of the actuator rotor shaft. Perform the necessary
calculations for determining whether or not diaphragm flexures are required by
the specific test system.
Mount the flexure(s) to either the flange adapter or the torque cell.
The following table lists the flexure ratings and mounting bolt torques for the
available flexure diaphragms.
Aligning Force Train Components
After the actuator, reaction bracket, and torque cell have been positioned on the
base plate or T-slot table, they must be aligned. The goal of the alignment process
is to ensure that the actuator and torque cell share the same centerline.
If the test system utilizes a base plate supplied by MTS, the actuator and reaction
bracket will have been pre-aligned at the factory. The combination of an MTS
base plate and reaction bracket enables the operator to easily move the reaction
bracket/torque cell assembly and simplifies the alignment procedure.
If the test system does not utilize an MTS base plate or T-slot table, the torque
cell has been separated from the reaction bracket, or the actuator has been moved,
then the “Component Centerline Alignment Procedure” must be performed in
order to ensure proper alignment of the components of the test system. If the
reaction bracket, torque cell, and actuator have not been moved and were
properly aligned when installed, then it is not necessary to perform the alignment
procedures.
The diaphragm flexure assemblies are self-centering.
Flange Adapter and Diaphragm Flexure Rating
M ODEL
F LANGE AND D IAPHRAGM F LEXURE R ATING M OUNTING B OLT T ORQUE
LBF · N . N· M LBF · IN . N· M
215.32 2000 226 18 24
215.35 5000 565 35 47
215.41 10,000 1130 35 47
215.42 20,000 2260 170 230
215.45 50,000 5650 170 230
215.51 100,000 11,300 280 380