Treadmill Roller-Belt Meshing for Smoother Synchronized Drive
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Solution Overview
Problem
Existing treadmill transmission systems suffer from low synchronization, poor smoothness, and loud noise due to inadequate contact area and friction between conveyor belts and wheels.
Innovation Solution
The transmission system incorporates first and second edged portions on the wheels and conveyor belts, with protrusions and grooves designed to increase contact area and ensure synchronous rotation, enhancing friction and stability while reducing noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional smooth contact surfaces are used between conveyor belts and wheels, then the structure is simple, but the contact area is insufficient leading to low synchronization and poor smoothness
Solution Approach 1:
The patent applies local quality by adding edged portions (protrusions and grooves) only to the contact surfaces of the wheels and conveyor belts, while keeping the rest of the structure simple. This localized modification increases the contact area and friction specifically where needed, improving synchronization without significantly complicating the overall device structure.
Solution Approach 2:
The contact surfaces are segmented into multiple protrusions and grooves instead of being smooth and continuous. This segmentation increases the effective contact area between the conveyor belts and wheels, allowing for better synchronization and reduced noise while maintaining structural simplicity.
2Object-affected harmful factors
If conventional smooth contact surfaces are used between conveyor belts and wheels, then manufacturing is simple, but friction is insufficient leading to loud noise
Solution Approach 1:
The edged portions with protrusions and grooves are added only to the contact surfaces where friction is needed, rather than modifying the entire wheel or belt structure. This localized approach effectively reduces noise through increased friction while keeping the manufacturing process relatively simple and focused on specific areas.
3Reliability
If conventional smooth contact surfaces are used, then the space occupied is small, but the contact area is insufficient leading to poor smoothness
Solution Approach 1:
The patent transitions from a smooth two-dimensional contact surface to a three-dimensional structured surface with protrusions and grooves. This dimensional change increases the effective contact area without significantly increasing the overall space occupied by the wheels or conveyor belts, thereby improving smoothness within the same spatial constraints.
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
This design improves synchronization, stability, and reduces noise in the transmission system without increasing its overall space, ensuring smooth operation of the conveyor belts.
Implementation Method 1
the first edged portions are meshed with the second edged portions... increasing a friction force when the two first conveyor belts operate with the driving wheels and the driven wheels
Data Source
AI summary
A transmission system for a treadmill and a treadmill comprising the same. The transmission system comprises a driving roller, a driven roller and first conveyor belts, wherein the driving roller comprises driving wheels and a first synchronization rod; the driven roller comprises driven wheels and a second synchronization rod; the first conveyor belts are arranged on the driving wheels and the driven wheels located on the same side, and the first conveyor belts form transmission connection with the driving wheels and the driven wheels on the same side; working faces of the driving wheels and the driven wheels are provided with first edged portions arranged around outer circumferences of the driving wheels and the driven wheels, working faces of the first conveyor belts are provided with second edged portions adapted to the first edged portions, and the first edged portions are meshed with the second edged portions.