Segment Bearing Offset Roller Mounting for Pivot Locking
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Solution Overview
Problem
Existing segment bearing devices do not provide an effective mounting safeguard to prevent pivoting movement while allowing rotational movement, which is necessary in applications like disc brakes for commercial vehicles.
Innovation Solution
A segment bearing device with a partial shell and a segment cage containing rolling elements, where at least one rolling element acts as a mounting rolling element, is offset to a second partial circle during mounting, providing increased friction and immobilization, and a pivot lock with a groove contour and locking member ensures secure mounting without affecting operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the segment bearing device is designed to allow free pivoting during operation, then the ease of operation is improved, but the mounting safeguard is insufficient allowing incorrect installation
Solution Approach 1:
The mounting rolling element dynamically changes position between two partial circles: in the mounted state it is held in a second partial circle providing mounting safeguard, and in the operating state it moves to a first partial circle allowing free pivoting. This dynamic repositioning resolves the contradiction between mounting security and operational freedom.
Solution Approach 2:
The radial position parameter of the mounting rolling element is changed between two states: held at a larger radius in the second partial circle during mounting, and allowed to move to a smaller radius in the first partial circle during operation. This parameter change enables the system to transition from a secure mounting state to a free-operating state.
2Reliability
If the mounting rolling element is held in the second partial circle during mounting, then the mounting safeguard is improved, but the device complexity increases
Solution Approach 1:
The mounting rolling element serves dual functions: it provides mounting safeguard when held in the second partial circle, and enables operational pivoting when moved to the first partial circle. The same component performs both mounting and operational functions, reducing the need for additional separate mechanisms.
Solution Approach 2:
The mounting rolling element is a universal component that performs multiple functions: it acts as a mounting safeguard element during installation and as an operational rolling element during pivoting. This multi-functionality reduces device complexity by eliminating the need for separate mounting and operational components.
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 segment bearing device is effectively immobilized during mounting, preventing pivoting while allowing rotational movement, and the pivot lock ensures secure engagement without interfering with operation, enhancing the mounting process and preventing incorrect mounting.
Implementation Method 1
The mounting rolling element is arranged in a second partial circle... providing increased friction and immobilization
Data Source
AI summary
A segment bearing device for supporting a first bearing partner relative to a second bearing partner about a pivot axis (S) includes a plurality of rolling elements, a segment cage for receiving the rolling elements, and a partial shell, the partial shell providing a race for the rolling elements. At least one of the plurality of rolling elements is arranged as a mounting rolling element in a first partial circle (TK1) in an operating state of the segment bearing device, and is held in a second partial circle (TK2) in a mounted state of the segment bearing device. The common center point of the partial circles (TK1, TK2) is defined by a center of curvature of the segment cage, and the first partial circle (TK1) has a smaller diameter than the second partial circle (TK2).