Design Guidelines
Transport System Design
QuickStick HT User Manual
109
Rockwell Automation Publication MMI-UM007F-EN-P - September 2020
curves by using a wider magnet array to minimize thrust loss through the curve due to mis-
alignment of the motor to the magnet array.
Attributes of systems that use single array vehicles include:
•
The magnet array is typically the same width as the motor.
•
The guideway does not have any curves or it only uses large radius curves and the
magnet array is short or wider than the motor.
Figure 3-34: Single Array Vehicle Configuration
Dual Array Vehicle
Vehicles with two magnet arrays are typically used in QuickStick HT transport systems where
the guideway includes curves or large distances between motors. For systems where the track
runs in a straight line these arrays can be mounted directly to the vehicle. For systems where
the track has curves these arrays can be mounted on independent bogies.
On a curve, there can be misalignment between the motor and the magnet array on the vehicle,
which could lead to a loss of force. The dual array vehicle for use on curves has two indepen-
dent bogies that are connected to the vehicle by pivots, where each bogie has its own magnet
array. By allowing the bogies to rotate independently of each other under the vehicle, each
magnet array can stay as closely aligned to the motors as possible (as shown in
),
which minimizes the thrust loss that occurs while moving through a curve.
Both magnet arrays in a dual array vehicle must be the same length and the magnet arrays
must be mounted so that the gap between the arrays is a multiple of a cycle.
Attributes of systems that use dual array vehicles include:
•
The magnet array needs to be longer than a standard single magnet array.
•
The magnet array is typically wider than the motors.
•
The guideway uses small radius curves.
Figure 3-35: Dual Array Vehicle Configuration
Vehicle Body
Vehicle Wheels
Magnet Array
Magnet Array
Vehicle Body
Vehicle Wheels
Bogie Body
Bogie Pivot