Roller Pin Sleeve Damping for Shock Absorption
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Solution Overview
Problem
Existing rollers lack effective shock absorption mechanisms, particularly when used on medical devices or transfer carriages, leading to potential damage from shocks and vibrations.
Innovation Solution
The integration of a damping material between the pin and sleeve of a roller, which creates a decoupling effect by preventing axial and radial contact, allowing for a floating storage system that absorbs shocks and maintains the roller's attachment without transferring forces to the frame or carriage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If damping material is arranged between the pin and sleeve to prevent contact, then shock absorption is improved, but device complexity increases
Solution Approach 1:
A damping material is introduced as an intermediary element between the pin and the sleeve. This damping material absorbs shock forces while preventing direct contact between the pin and sleeve, thereby reducing harmful vibrations and impacts without requiring fundamental changes to the roller's structural design.
Solution Approach 2:
The damping solution is segmented into discrete damping elements that can be positioned at specific locations between the pin and sleeve. This segmentation allows for targeted shock absorption at critical contact points while maintaining the overall simplicity of the roller structure.
2Reliability
If the roller is decoupled from the frame using damping material, then reliability is improved by preventing shock transmission, but manufacturing precision requirements increase
Solution Approach 1:
The damping material introduces controlled elastic deformation parameters into the connection between the roller and frame. By changing the mechanical interaction from rigid to elastic, the system can absorb shocks while maintaining reliable attachment, compensating for variations in manufacturing tolerances through the damping material's compliance.
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 solution provides sufficient shock absorption in all load positions, decoupling shocks between the roller and the frame or carriage, ensuring the roller's stability and preventing damage to attached devices.
Implementation Method 1
a damping material arranged between the pin and the sleeve, by which the pin and the sleeve are spaced such that any contact between the pin and the sleeve is prevented
Implementation Method 2
an elastic material is received between the axle sleeve and the axle cavity
Data Source
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AI summary
The invention relates to a roller (1), comprising a wheel (2) and a wheel axle (38), wherein a pin (3) is provided, which protrudes upward from a housing of the roller (1) in the normal usage position. In order to develop a roller of the type in question in such a way that improved shock absorption can be achieved, according to the invention a sleeve (9) sits on the pin (3) and the sleeve (9) is spaced apart from the pin (3) radially and axially upward by a damping material (8) arranged between the sleeve (9) and the pin (3), the damping material (8) being arranged in such a way that all axial and/or radial contact between the pin (3) and the sleeve (9) is prevented. Furthermore, the invention relates to an attachment damping part (13) for a roller (1), wherein attachment damping part (13) can be arranged on a pin (3) of the roller (1) in overlap with the pin (3), wherein attachment damping part has an inner sleeve (12) and an outer sleeve (9), the inner sleeve (12) being spaced apart radially and axially upward, with respect to a normal usage position of the roller (1) provided with the attachment damping part (13), by a damping material (8) arranged between the inner sleeve (12) and the outer sleeve (9), and wherein the damping material (8) is arranged in such a way that all axial and/or radial contact between the inner sleeve (12) and the outer sleeve (9) is prevented.