Roller Assembly Frictional Transmission Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing roller assembly technology faces issues with deformation of the convey roller due to load, affecting frictional transmission performance and requiring inefficient component attachment/detachment processes.
Innovation Solution
A roller assembly design featuring a driving shaft with a stepped portion, a frictional transmission member, and biasing means, including a shaft member and elastic member, to securely transmit rotational force and reduce deformation influence, with a roller unit and conveyor apparatus configuration that supports efficient assembly and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sliding bearing is disposed between the driving roller and convey roller to transmit rotational force by friction, then the convey roller can be driven to rotate, but the surface pressure between the convey roller and sliding bearing changes when the convey roller shakes or wears over time, affecting frictional transmission performance
Solution Approach 1:
The driving shaft is divided into two segments: a first shaft portion that supports the convey roller and a second shaft portion with a smaller diameter that rotates with the driving wheel. This segmentation isolates the convey roller from rotational movement, preventing deformation and maintaining stable surface pressure for reliable frictional transmission.
Solution Approach 2:
A frictional transmission member is introduced as an intermediary element between the driving wheel and the driving shaft. This member transmits rotational force through friction while being pressed by biasing means, decoupling the rotational movement from the convey roller support function and maintaining stable transmission performance.
2Device complexity
If the convey roller is directly mounted on the driving shaft to support the load, then the structure is simple, but the convey roller deforms under load which affects frictional transmission performance
Solution Approach 1:
The driving shaft is segmented into a first shaft portion for supporting the convey roller and a second shaft portion for rotation. This allows the convey roller to be mounted on the non-rotating first shaft portion, preventing deformation under load while maintaining structural simplicity.
Solution Approach 2:
Different portions of the driving shaft have different functional qualities: the first shaft portion is designed for load-bearing and support, while the second shaft portion is designed for rotation. This local differentiation optimizes each portion for its specific function, preventing convey roller deformation.
3Reliability
If component parts of the roller assembly are designed for secure attachment, then reliability is improved, but the attaching/detaching efficiency decreases
Solution Approach 1:
The roller assembly is segmented into modular components (driving wheel, frictional transmission member, biasing means, convey roller) that can be independently attached and detached. The driving wheel can be removed from the second shaft portion without affecting the convey roller support structure, improving maintenance efficiency.
Solution Approach 2:
The frictional transmission member and biasing means can be independently replaced or recovered during maintenance. The modular design allows worn components to be discarded and replaced without dismantling the entire assembly, reducing maintenance time while maintaining reliability.
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 effectively reduces the impact of convey roller deformation on frictional transmission performance and enhances the efficiency of component attachment and detachment, improving overall system reliability and maintenance.
Implementation Method 1
an elastic member disposed in the inner hole to apply an pushing force for pushing the driving wheel toward the transmission receiving portion to the pushing member through the shaft member
Implementation Method 2
a frictional transmission member clamped between the transmission receiving portion and a side surface of the driving wheel to frictionally transmit a rotational force of the driving wheel to the rotary member
Data Source
AI summary
This invention provides a roller assembly including a rotary member including a driving shaft portion and a convey roller portion provided with the driving shaft portion, a driving wheel including a hole portion and attached to the driving shaft portion, the driving wheel being driven to rotate, a transmission receiving portion radially extending outward from the driving shaft portion and rotated together with the driving shaft portion, a friction transmission member clamped between the transmission receiving portion and a side surface of the driving wheel and frictionally transmitting a rotational force of the driving wheel to a rotary member, and a biasing portion applying a clamping force between the transmission receiving portion and the side surface of the driving wheel.