Bearing Retaining Strip for Coded Ribbon Attachment
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Solution Overview
Problem
Large diameter bearings, such as roller bearings, face issues with the detachment of glued-on circumferential coder ribbons, leading to detection failure and operational impediments, requiring costly interventions for dismantling and reassembly.
Innovation Solution
Incorporation of a detection device with a coder element on one ring and a sensor element on the other, along with retaining strips on the first ring to secure the ribbon, allowing for the detection of ring movement without interference, using magnetized ribbons and non-magnetic retaining strips to prevent detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a glued-on circumferential ribbon is used as a coder element, then the detection device can be implemented, but the ribbon may become detached causing detection failure and operational impediments
Solution Approach 1:
The retaining strip is divided into multiple functional portions: a first portion that contacts the ribbon to prevent radial detachment, and a second portion that extends axially to secure the ribbon against the ring. This segmentation allows each portion to address specific detachment risks independently, enhancing overall reliability without requiring a completely complex retention mechanism.
Solution Approach 2:
The retention mechanism is pre-installed on the ring before the ribbon is applied. The retaining strip is positioned in advance to define a retention space, ensuring that when the ribbon is glued onto the ring, it is immediately secured both radially and axially. This preliminary positioning prevents detachment issues before they can occur during operation.
2Reliability
If retaining strips are added to secure the ribbon, then detachment is prevented, but the device complexity increases
Solution Approach 1:
The retaining strip serves multiple functions simultaneously: it provides radial retention to prevent the ribbon from detaching outward, offers axial retention to secure the ribbon against the ring surface, and defines a retention space that accommodates the ribbon. This multi-functionality reduces the need for separate retention components, thereby limiting the increase in device complexity while maintaining high reliability.
3Productivity
If the ribbon is securely retained, then detection continues uninterrupted, but the manufacturing and assembly process becomes more complex
Solution Approach 1:
The retaining strip is pre-mounted on the ring with its first portion extending radially and second portion extending axially to define a retention space. This preliminary configuration allows the ribbon to be simply glued into place without requiring complex assembly operations. The pre-positioned retention structure guides the ribbon installation process, making it straightforward and enabling continuous operation without frequent disassembly and reassembly.
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
Prevents ribbon detachment, ensuring continuous operation by enabling reliable detection of ring movement, reducing the need for costly stoppages and reassembly, and maintaining bearing functionality.
Implementation Method 1
The ribbon may be magnetized successively with (+) poles and (−) poles, the retaining strip being made of a non-magnetic material.
Data Source
AI summary
A bearing providing a first ring and a second ring, capable of rotating concentrically relative to one another, equipped with at least one incorporated device for detecting the movement of the rings relative to one another is provided. The detection device includes at least a coder element mounted on the first ring and at least a sensor element mounted on the second ring, facing the coder element, the coder element providing at least one linear ribbon arranged on a cylindrical surface of the first ring. The first ring of the bearing is equipped with at least one retaining strip that extends over the ribbon.