Container Wheel Axle Spring Rib Vibration Control
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Solution Overview
Problem
Conventional containers experience noise due to manufacturing tolerances causing relative movement of components during rolling, leading to vibrations and noise from wheel movements.
Innovation Solution
Assigning a spring to at least one bearing to elastically prestress the wheels away from each other, eliminating play and vibrations, with the rib designed as a spring to achieve this prestressing without needing a separate spring component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manufacturing tolerances are accommodated with sufficient production play, then components can be joined together even in the worst case, but vibrations and noise occur during rolling due to relative movements of components
Solution Approach 1:
The patent introduces an elastic element that changes the mechanical parameter of the connection between wheel axle and bearing. By incorporating a spring mechanism, the system transitions from a rigid connection with play to an elastic connection that dynamically adjusts to manufacturing tolerances while preventing relative movements that cause noise and vibrations.
Solution Approach 2:
The elastic element acts as an intermediary component between the wheel axle and the bearing. This mediator absorbs the manufacturing tolerances and prevents direct contact and relative movement between the rigid components, thereby eliminating the source of noise and vibrations while maintaining joinability.
2Object-generated harmful factors
If separate spring components are used to prestress the wheels, then vibrations are suppressed, but the device complexity increases
Solution Approach 1:
The patent merges the spring function with the existing bearing structure by designing the bearing body itself as an elastic element. The bearing body is configured with flexible walls that can deform elastically, combining the support function and the vibration suppression function into a single integrated component, thereby avoiding the need for separate spring components.
Solution Approach 2:
The bearing body is designed to perform multiple functions: it supports the wheel axle, accommodates manufacturing tolerances, and suppresses vibrations through its elastic properties. This multi-functional design eliminates the need for additional dedicated vibration suppression components, reducing overall device complexity.
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 suppresses vibrations and noise during container movement by ensuring the wheels, body, and axle are elastically prestressed, enhancing the structural integrity and reducing noise.
Implementation Method 1
at least one of the ribs, between which the body of the bearing in which the axle of the wheels is mounted, is designed as a spring in order to achieve the desired prestressing which suppresses vibrations
Data Source
Figure 1~4
Figure 3
AI summary
A container (1) has a body (2), an axle (5) mounted on the body (2) in bearings (7), and two wheels (4) attached to the axle (5). The bearings (7) comprise bodies (8) on which a rib (9 and 10) is provided on the inside and outside. At least one outer rib (10), i.e., a rib (10) facing the adjacent wheel (4), is designed as a spring that bears against the shaft (6) of the adjacent wheel (4) under elastic preload.