Wheel Test Device Torque Segmentation for Power Reduction
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Solution Overview
Problem
Existing wheel test devices require large-capacity electric motors to apply high torque to wheels while rotating them at high speeds, leading to significant power consumption.
Innovation Solution
A wheel test device configuration that includes a rail wheel support unit, a wheel support unit, a first electric motor for rotating the rail and test wheels, and a torque generating device with a second electric motor mounted on a rotating frame, allowing for efficient power distribution and reduced energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a large-capacity electric motor is used to apply high torque while rotating the wheel at high speed, then the wheel can be driven at high speed with high torque, but power consumption becomes enormous
Solution Approach 1:
The drive system is segmented into two independent motor units: a first electric motor for rotating the rail wheel and test wheel, and a second electric motor mounted on the rotating frame for generating additional torque. This segmentation allows each motor to operate at optimal capacity, reducing total power consumption compared to using a single large-capacity motor
Solution Approach 2:
The second electric motor is mounted on a rotating frame that rotates together with the rail wheel and test wheel. This dynamic mounting allows the second motor to add torque to the rotating system without requiring a stationary large-capacity motor, enabling high torque output with lower overall power consumption
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables the wheel test device to reduce power consumption while maintaining the ability to apply high torque and rotate wheels at high speeds, improving energy efficiency and operational costs.
Implementation Method 1
a first electric motor configured to rotate the rail wheel and the test wheel
Implementation Method 2
a torque generating device configured to generate torque to be applied to the test wheel, the torque generating device including a rotating frame rotationally driven by the first electric motor, and a second electric motor mounted on the rotating frame
Implementation Method 3
the torque generating device may include a bearing unit configured to rotatably support the rotating frame
Data Source
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AI summary
According to an embodiment of the present invention, there is provided a wheel test device including a rail wheel support unit configured to rotatably support a rail wheel, a wheel support unit configured to rotatably support a test wheel in a state where the test wheel is in contact with the rail wheel, a first electric motor configured to rotate the rail wheel and the test wheel, and a torque generating device configured to generate torque to be applied to the test wheel, wherein the torque generating device includes a rotating frame rotationally driven by a rotary drive device, and a second electric motor mounted on the rotating frame, wherein at least one of the rail wheel and the test wheel is connected to the first electric motor via the torque generating device.