Roller Transmission Assembly With Boltless Annular Support Frame
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional friction traveling devices require complex assembly processes due to the use of bolts to attach holders to both the hub and wheel, making the assembly of multiple rollers to the hub and wheel cumbersome.
Innovation Solution
A driving force transmission device with an annular shape, featuring a roller arrangement portion that includes a base, outer, and inner frame portions, where the roller support portions are fitted between the inner and outer frame surfaces, eliminating the need for bolts and simplifying assembly by using a fitting portion system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If bolts are used to fasten the hub and holder, and the wheel and holder, then the connection strength is sufficient, but the assembly work becomes complicated
Solution Approach 1:
The hub and wheel are merged into a single integrated component with a unified structure. The holder is positioned between the hub and wheel and secured by a single bolt connection to the hub, eliminating the need for separate bolt connections to both the hub and wheel. This merging reduces the number of fastening operations while maintaining structural integrity through the integrated hub-wheel design.
2Stability of the object's composition
If multiple holders are assembled to the hub and wheel using bolts, then the structural stability is ensured, but the assembly time increases
Solution Approach 1:
The hub and wheel are combined into a single integrated component, allowing multiple holders to be assembled simultaneously to the unified structure. This eliminates the need for separate assembly operations to both the hub and wheel, reducing assembly time while maintaining structural stability through the integrated design that distributes loads across the combined hub-wheel assembly.
3Force
If a conventional hub and wheel structure with multiple bolt connections is used, then the load bearing capacity is sufficient, but the number of components increases
Solution Approach 1:
The hub and wheel are merged into a single integrated component, reducing the total number of parts in the assembly. This consolidation maintains load bearing capacity by distributing forces across the integrated structure, eliminating the need for separate hub and wheel components that would each require individual fastening operations and associated hardware.
Data Source
AI summary
A driving force transmission device includes drive rollers, roller support portions, and a roller arrangement portion. The drive rollers transmit a driving force to a main wheel. The roller support portions rotatably support the drive rollers. The roller arrangement portion includes a base, an outer frame, and an inner frame. The base expands radially outward with respect to a rotation axis. The outer frame extends in a circumferential direction around the rotation axis and protrudes from the base in an axial direction along the rotation axis. The inner frame is radially inside the outer frame and protrudes from the base in the axial direction. The roller support portions are fitted between the inner circumferential surface of the outer frame and the outer circumferential surface of the inner frame.