Drive Housing Adapter Plate Sealing for Safe Cover Assembly
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Solution Overview
Problem
Existing drives with electric motors lack cost-effective and secure sealing mechanisms to prevent contact with rotating parts, leading to potential safety hazards and inefficiencies in production.
Innovation Solution
A drive design featuring a housing with a flat support surface, an adapter plate, and a cover, utilizing O-rings or flat seals for sealing, where the adapter plate is attached to the housing with screws that press it towards the support surface, creating a tight seal and additional protection through a radially projecting tab area, allowing for secure and easy assembly and ensuring a form-fitting connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cover is added to protect rotating parts, then safety is improved, but device complexity increases
Solution Approach 1:
The housing is designed to integrate multiple functions: it provides structural support for the motor and gearbox, creates a sealed enclosure for rotating parts, and incorporates mounting surfaces for the cover. This merging of protective and structural functions into a single component achieves safety without proportionally increasing device complexity
Solution Approach 2:
The housing serves multiple purposes simultaneously: it acts as a structural frame, a protective enclosure, a sealing surface for the adapter plate, and a mounting base for bearings. This multi-functionality allows the safety feature (cover) to be integrated without requiring additional dedicated components
2Reliability
If multiple seals are added to ensure tight sealing, then sealing reliability is improved, but device complexity increases
Solution Approach 1:
The adapter plate integrates multiple sealing functions into a single component by incorporating both the first seal (O-ring) for the cover interface and the second seal (flat seal) for the housing interface. This consolidation achieves comprehensive sealing reliability without the complexity of separate sealing assemblies
Solution Approach 2:
Different sealing mechanisms are applied at different locations based on specific requirements: an O-ring (first seal) is used where circular compression is effective (cover interface), while a flat seal (second seal) is used where surface compression is more suitable (housing interface). This localized optimization achieves reliable sealing without using complex sealing solutions throughout
3Reliability
If the adapter plate is pressed tightly against the support surface, then sealing is improved, but manufacturing precision requirements increase
Solution Approach 1:
The sealing mechanism relies on controlled compression force applied by screws rather than requiring precise initial positioning. By changing the sealing approach from precision-dependent to force-dependent, the system achieves reliable sealing while tolerating greater variations in manufacturing precision of the support surface and adapter plate
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 provides a safe, cost-effective, and secure sealing mechanism that prevents contact with rotating parts, ensuring a tight seal and protecting the drive's components from environmental contamination, while allowing for compact and efficient production.
Implementation Method 1
a first seal, in particular O-ring, is received on the outer circumference of the adapter plate and is arranged between the cover and the adapter plate, in particular for sealing
Implementation Method 2
a second seal, in particular O-ring or flat seal, is received and/or fastened on the side of the adapter plate facing the support surface, wherein the second seal is arranged between the adapter plate and the support surface, in particular for sealing
Implementation Method 3
screws passed through an adapter plate are screwed into the threaded holes, pressing the adapter plate towards the flat surface
Implementation Method 4
a tab area of the cover can be secured using an additional screw threaded into an additional threaded hole in the support surface. This also provides additional positive locking of the cover
Implementation Method 5
the cover can be pressed against the support surface by the elastic deformation of the tab area caused by screwing in the additional screw
Data Source
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AI summary
Described is a drive having a housing, an adapter plate and a covering hood, wherein: a flat support surface, more particularly for supporting the covering hood, is formed on the housing; the adapter plate is fastened to the housing; a first seal, more particularly an O ring, is received on the outer circumference of the adapter plate and is arranged between the covering hood and the adapter plate, more particularly for sealing; a second seal, more particularly an O ring or sealing gasket, is received and/or fastened on the side of the adapter plate facing the support surface; the second seal is arranged between the adapter plate and the support surface, more particularly for sealing.