Damper Hub-Flange Assembly With Swarf Containment
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Solution Overview
Problem
The composition of a hub flange as separate members, a hub, and a flange plate, can hinder the smooth operation of a damper device due to potential swarf attachment and detachment issues.
Innovation Solution
A damper device design that includes a flange plate, a hub, an elastic member, and an intermediate member, where the hub is press-fitted to the flange plate, and a containing space is defined to confine any detached swarf, preventing it from interfering with the device's operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the hub and flange plate are composed as separate members and press-fitted together, then the hub flange can be assembled from separate components, but swarf is produced during press-fitting and may detach to get stuck between members, hindering smooth operation
Solution Approach 1:
The harmful factor (swarf) is extracted and isolated from the operational space by creating a dedicated containing space that captures swarf particles, preventing them from interfering with the smooth operation of the damper device while maintaining the separate member construction
Solution Approach 2:
The intermediate member acts as a mediator between the hub and flange plate, providing a containing space that mediates the potential harm of swarf detachment by confining it within a controlled region, thus ensuring reliable operation
2Stability of the object's composition
If the hub is press-fitted to the flange plate, then the hub and flange plate can be unitarily rotated, but the press-fitting process produces swarf that attaches to the hub
Solution Approach 1:
The harmful swarf produced during press-fitting is converted into a contained element within the containing space, where it is isolated and prevented from causing harm, thus allowing the press-fitting process to achieve both unitary rotation and operational 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 design ensures smooth operation of the damper device by confining swarf within a defined space, preventing it from getting stuck between members and hindering the device's functionality.
Implementation Method 1
The elastic members elastically couple the hub flange and both the first and second plates
Implementation Method 2
The annularly expanded portion is press-fitted to the opening of the flange plate
Data Source
AI summary
In a damper device, a flange plate includes first and second lateral surfaces and an opening. An annularly expanded portion of a hub extends circumferentially on an outer peripheral surface of the hub body. The hub rotates with a flange plate. An intermediate member is disposed between the flange plate and a first plate. The intermediate member includes first and second inner wall surfaces. The first inner wall surface is opposed to the first lateral surface at an interval. The second inner wall surface is opposed to an outer peripheral surface of the annularly expanded portion at an interval. The first inner wall surface, the second inner wall surface, the first lateral surface, and the outer peripheral surface of the annularly expanded portion define a containing space having an annular shape. The configuration facilitates smooth operation.