Spring Actuable Friction Clutch Mounting via Threaded Sleeves
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Solution Overview
Problem
The existing spring-actuable friction clutches with cup springs are structurally complex and require complicated mounting due to the need for precise positioning and connection of multiple individual parts.
Innovation Solution
The use of fixedly arranged threaded sleeves on the disk carrier, with a holding ring and bolts that penetrate passages in the holding ring and screw into the threaded sleeves, allows for simple and secure mounting of the cup spring from outside the disk carrier, eliminating the need for handling individual parts during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If riveted connections or formed sheet metal elements are used to attach the cup spring to the disk carrier, then the mounting process becomes complicated requiring precise positioning and connection of multiple individual parts, but the structural integrity is maintained
Solution Approach 1:
The patent combines multiple individual parts (threaded sleeves, holding ring, bolts) into a unified fastening system that simplifies the mounting process. The threaded sleeves are integrated into the disk carrier, the holding ring encompasses the cup spring, and bolts connect the assembly, transforming complex multi-step riveting into a simpler screwed connection system that maintains integrity while reducing positioning complexity
Solution Approach 2:
The fastening system is segmented into distinct functional components: threaded sleeves fixed on the disk carrier for positioning, a holding ring for securing the cup spring, and bolts for final fastening. This segmentation allows each component to be optimized independently while simplifying the overall mounting process compared to monolithic riveted connections
2Reliability
If multiple individual parts are positioned and connected to secure the cup spring, then reliable force transmission is achieved, but the mounting becomes time-consuming and complex
Solution Approach 1:
The threaded sleeves are pre-fixed on the disk carrier before cup spring installation, establishing precise positioning points in advance. This preliminary action eliminates the need for complex positioning during mounting, allowing the cup spring to be directly secured with bolts through the holding ring, thereby maintaining force transmission reliability while reducing mounting time
3Ease of operation
If the cup spring is mounted from outside the disk carrier using threaded sleeves and holding ring, then the mounting process is simplified, but additional components are required
Solution Approach 1:
The holding ring acts as an intermediary component that encompasses the cup spring and provides a interface for bolt connection to the threaded sleeves on the disk carrier. This mediator enables external mounting access while organizing the connection geometry, allowing simple outside-in assembly without requiring the cup spring to be installed from multiple directions or disassembled 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
This solution simplifies the mounting process, ensures secure attachment of the cup spring, and enables easy pivoting during actuation, while maintaining structural integrity and reliable force transmission without dimensional changes in the rings.
Implementation Method 1
a cup spring (3) which is actuated by means of a pressure piece (20) in a radially inward direction, viewed in the axial direction of the friction clutch (1)
Implementation Method 2
bolts (7) of screwed connections, which penetrate passages (8) of the holding ring (6) and are screwed into the threaded sleeves (4)
Implementation Method 3
a pressure disk (100) and disks (50) of the clutch are held on one another in a frictionally locking manner
Data Source
AI summary
A spring-actuable friction clutch, having a disk carrier and a cup spring which is connected to the latter via screwed connections. Threaded sleeves are arranged fixedly on the disk carrier. The cup spring has openings which are penetrated by the threaded sleeves. A holding ring is arranged on that side of the cup spring which faces away from the disk carrier. Bolts penetrate passages of the holding ring and are screwed into the threaded sleeves. In a friction clutch of this type, particularly simple mounting and fastening of the cup spring on the disk carrier is ensured.