Rotating Door Pivot Decoupling for Compact Drive Design
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Solution Overview
Problem
Existing rotating doors with integrated drive and bearing systems require large and complex designs due to the drive functioning as an upper bearing location, leading to significant space and cost inefficiencies.
Innovation Solution
The pivot of the rotating door is decoupled from the drive and receives its own bearing through a connection element, allowing for a more slender and cost-optimized drive design, with the connection element being a flat, cylindrical disk that can be mounted radially and adapted to different diameters, enabling independent mounting and protection of drive components during construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drive functions as an upper bearing location for the pivot, then the rotating door can be supported, but the drive housing and bearing require a massive design leading to large construction space and complicated design
Solution Approach 1:
The invention separates the bearing function from the drive unit by introducing an independent bearing unit that receives the pivot. This segmentation allows the drive to have a slender construction without the massive housing required when it also serves as the bearing location, directly resolving the contradiction between support reliability and device complexity.
2Reliability
If the drive functions as an upper bearing location for the pivot, then the rotating door can be supported, but the installation space becomes large
Solution Approach 1:
By dividing the support function into a separate bearing unit independent from the drive, the overall installation space is reduced. The bearing unit can be compactly designed to receive the pivot, while the drive unit achieves a slender construction, together occupying less space than the integrated massive design.
3Strength
If the pivot is decoupled from the drive with its own bearing, then impacts from door movement are not transmitted into the drive, but this requires an additional bearing unit
Solution Approach 1:
The bearing function is extracted from the drive unit and implemented as a separate bearing unit. This extraction protects the drive from impacts generated during door movement while the bearing unit independently handles the support function, resolving the contradiction between drive protection and component complexity.
4Reliability
If the connection element allows independent mounting of the rotating door from the drive, then drive components can be protected during construction, but this requires a divided connection element design
Solution Approach 1:
The connection element is divided into a first connection element for the pivot and a second connection element for the drive, enabling independent mounting sequences. This segmentation allows the rotating door to be mounted and protected separately from the drive during construction, while the divided connection structure maintains functional integrity.
Data Source
AI summary
An rotating door driven so as to be swivelable around a pivot of the rotating door includes a rotary bearing; a connection element having a driver piece configured to receive the pivot of the rotating door, the driver piece being mounted in the rotary bearing; and a drive connectable to the pivot of the rotating door in frictional engagement via the connection element.