Basic Components; Rotor; Stator - Tecnotion QTR 65 Series Manual

2.4

Basic components

A Tecnotion QTR torque motor kit consists of a rotor containing the magnets
and a stator containing the coils. The bigger torque motors are provided
with a temperature sensor. A QTL torque motor has optionally a ring with
cooling channels wrapped around the stator and four brackets and spacers
to fix the rotor and stator in place. In case of the water-cooled motor there
are a total of four brackets. Additionally it has integrated temperature sen-
sors. See Figure 2.
Figure 2: Basic components QTL motor kit
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The voltage rating of 300, 600 or 680 Vdc varies per torque motor. Should
another cable exit type or voltage rating be required please contact your
local Tecnotion representative to explore the possibilities. Common
methods of construction of the stator into an application are clamping or
bonding. The torque motor lamination stack surface is made of bare steel
and is prone to corrosion. When the lamination stack surface is not pro-
tected it will show corrosion, this however will not affect performance.

2.4.1 Rotor

The rotor, containing the magnets, is usually the moving part of the torque
motor. The rotor can be fastened into an application by means of bonding,
clamping, or bolting, depending on the motor type. The rotor of QTL motor
can be fastened into an application by means of bolting.
Magnetic field protection ring
The rotor an be supplied with a magnetic field neutralizing protection ring
(QTR-65, QTR-78 and QTL series don't have a protection ring), see Figure 3. It
functions as a shield for the magnetic forces. With the ring installed the
rotor can be handled safely.
Figure 3: Protection ring

2.4.2 Stator

The stator comes in different diameters and heights. It has a separate power
and temperature sensor cable both with a length of 0.5 m. The cable exit
can, depending on the motor type, be in axial or radial direction (see Figure
4). The QTL torque motor has a separate power and temperature sensor
OVERVIEW & SPECIFICATIONS
Stator Stator
Rotor
Rotor
Protection
Protection
ring
ring
8