Clutch Device Annular Ring Decoupling Axial Movement
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Solution Overview
Problem
Existing clutch devices face issues with mechanical strength and durability due to axial movements generated during engagement and disengagement, leading to potential damage to internal components like rolling bearings, and require complex and time-consuming assembly processes.
Innovation Solution
A clutch device featuring a clutch mechanism cover, clutch control support, and an annular ring that allows for deformation during assembly, decoupling the cover from the support to prevent axial movement transmission and simplify assembly, using a pre-assembled sub-assembly with a preload spring to maintain contact and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the clutch control is fixed directly to the cover using rigid fixing, then the assembly operation is simplified, but the mechanical strength and durability of the clutch control deteriorates due to transmission of axial movements
Solution Approach 1:
The patent introduces an elastic element as an intermediary between the clutch control and the cover. This elastic element decouples the rigid connection, allowing the clutch control to be easily assembled while preventing the transmission of harmful axial movements that would compromise mechanical strength and durability.
2Ease of manufacture
If rigid fixing is used to attach the clutch control to the cover, then the assembly process becomes simpler, but the durability of internal rolling bearings deteriorates due to transmitted axial movements
Solution Approach 1:
The elastic element serves as a mediator that isolates the rolling bearings from axial movements generated during clutch engagement and disengagement. This allows for a simple assembly process while protecting the bearings from damaging forces, thereby extending their service life.
3Stability of the object's composition
If the cover is rigidly connected to the support, then the structural stability is improved, but the transmission of vibrations and axial movements to the clutch control increases
Solution Approach 1:
The elastic element acts as a vibration isolator, decoupling the clutch control from the cover's structural vibrations. This maintains the structural stability of the cover while preventing the transmission of harmful vibrations and axial movements to the clutch control components.
Solution Approach 2:
The patent employs an elastic element that functions as a flexible component between rigid parts. This flexible element absorbs vibrations and axial movements, protecting the clutch control while maintaining overall structural integrity.
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 effectively reduces axial movement transmission, enhances mechanical strength, and simplifies the assembly process, improving the durability of clutch components and reducing assembly time and complexity.
Implementation Method 1
the annular ring has a first state of deformation relative to its shape in the free state, and a second portion in which the annular ring expands so as to present a second state of deformation once the support is assembled on the cover
Data Source
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AI summary
The invention relates to a motor vehicle clutch device (2), which includes a cover (11) of a clutch mechanism (10), a clutch control mounting (52; 520) (50), and an annular ring (70; 700) for attaching the cover and the mounting, characterised in that the cover (11) comprises a wall (13; 130) opposite a wall (80; 800) of the mounting, said opposing walls (13; 130; 80; 800) defining a passage (71; 710) for the annular ring during the assembly of the mounting on the cover, said passage (71; 710) having a first portion in which the annular ring (70; 700) has a first deformation state relative to the shape of same when in a free state, and a second portion in which the annular ring (70; 700) expands such as to have a second deformation state once the mounting (52; 520) is assembled on the cover (11).