Servo-Driven Treadmill Roller Control for Vibration Exercise Modes
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Solution Overview
Problem
Traditional treadmills lack variability and interest, leading to exercise fatigue and reduced fitness effectiveness due to monotonous exercise modes.
Innovation Solution
A driving device for a treadmill incorporating a servo motor with an encoder, a controller, and a transmission shaft, enabling bidirectional alternate and unidirectional rotation changes to create horizontal vibrations and varied exercise modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional single-function treadmill is used, then the device complexity is low, but the adaptability and user interest are insufficient
Solution Approach 1:
The servo motor is designed to perform multiple functions: unidirectional rotation for walking/running, bidirectional alternate change for horizontal vibration, and bidirectional rotation for backward walking. This multi-functionality allows a single device to provide diverse exercise modes including forward walking, running, backward walking, and horizontal vibration, thereby improving adaptability without requiring multiple separate devices
Solution Approach 2:
The system dynamically adjusts the motor's rotation mode based on control signals. The servo motor can switch between unidirectional rotation, bidirectional alternate change, and bidirectional rotation modes, allowing the treadmill to adaptively provide different exercise modes (walking, running, vibration, backward walking) based on user needs and exercise requirements
2Measurement precision
If a servo motor with encoder is used, then the control precision and exercise mode variety are improved, but the device complexity and cost increase
Solution Approach 1:
The encoder provides real-time feedback on the servo motor's rotation angle and position to the control system. This feedback mechanism enables precise control of the motor's rotation, allowing accurate implementation of different exercise modes (unidirectional rotation for walking, bidirectional alternate change for vibration) and ensuring the roller achieves the desired motion characteristics
Solution Approach 2:
The patent replaces traditional mechanical control mechanisms with an electro-mechanical control system using a servo motor and encoder. This substitution enables more precise and flexible control of the roller's motion, allowing for accurate implementation of various exercise modes through electrical control signals rather than complex mechanical linkages
3Adaptability or versatility
If bidirectional alternate change of rotation angle is implemented, then horizontal vibration is achieved, but the control complexity increases
Solution Approach 1:
The servo motor implements bidirectional alternate change of rotation angle in a periodic manner, alternating between rotating in the first direction and the second direction. This periodic bidirectional rotation creates horizontal vibration of the roller, providing a new exercise dimension without requiring additional vibration mechanisms
4Adaptability or versatility
If multiple exercise modes are provided, then user experience and fitness effectiveness are improved, but the device complexity increases
Solution Approach 1:
The servo motor serves as a universal actuator that can perform multiple exercise functions through different rotation patterns. By programming the motor to execute different rotation sequences (unidirectional for walking, bidirectional alternate for vibration), the system provides diverse exercise modes through a single controlled component, maintaining operational simplicity
Data Source
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AI summary
The present disclosure provides a driving device of a treadmill, and a treadmill. A servo motor of the driving device of a treadmill is internally and/or externally provided with an encoder, and connected to a controller through the encoder. A transmission shaft of the servo motor is in transmission connection with a roller of the treadmill. The controller is used to adjust change direction and change amplitude of a rotation angle of the servo motor by transmitting a control signal to the encoder, thus driving the roller of the treadmill to vibrate horizontally or rotate in one direction. Based on the driving device of the treadmill, a treadmill or a treadmill can drive a roller of a treadmill, thus driving a belt to vibrate, rotate in one direction, or vibrate horizontally in the process of rotating in one direction.