Frictionally-Acting Device Intermediate Disk Segmentation
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Solution Overview
Problem
The production of traditional frictionally-acting devices, such as disk clutches and disk brakes, is complex and cost-intensive due to the difficulty in fixing friction linings on thick support disks without direct contact issues.
Innovation Solution
Incorporating an intermediate disk with a friction lining on one side, which is thinner than the support disk, allowing for easier adhesive fixation using phenol resin, and optionally using an actuation disk with a friction lining carrier, simplifies the manufacturing process by avoiding the need for frictional engagement between the support disk and the second disk set.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a friction lining is fixed directly on the thick support disk, then the support disk can provide sufficient structural strength, but the manufacturing process becomes complex and time-consuming
Solution Approach 1:
The support disk assembly is segmented into multiple functional components: the thick support disk for structural strength, and a separate thinner intermediate disk for friction lining attachment. This segmentation allows each component to be optimized for its specific function while simplifying the overall manufacturing process.
Solution Approach 2:
An intermediate disk is introduced as a mediator between the support disk and the friction lining. This intermediate disk serves as the actual carrier for the friction lining, while the support disk provides structural support. The intermediary element resolves the contradiction by separating the structural function from the friction function.
2Reliability
If a friction lining is fixed on the thick support disk, then direct contact between friction surfaces is ensured, but production time and costs increase
Solution Approach 1:
The friction engagement system is segmented into the intermediate disk with friction lining and the support disk without friction lining. This segmentation allows the friction lining to be attached to the thinner intermediate disk, which can be manufactured and prepared more quickly than a thick support disk, thereby reducing production time while maintaining reliable frictional engagement.
Solution Approach 2:
The intermediate disk with friction lining can be designed as a replaceable component with a shorter service life compared to the durable support disk. This approach allows for faster production and replacement of the friction element without compromising the longevity of the overall assembly, effectively trading component lifespan for manufacturing efficiency.
3Object-affected harmful factors
If the support disk is made thick to prevent direct material contact, then material protection is achieved, but the device becomes more complex and expensive to produce
Solution Approach 1:
The intermediate disk acts as an intermediary element that provides the friction surface while the thick support disk provides structural support. This intermediary approach protects the expensive support disk material from direct friction contact while keeping the overall device design relatively simple and cost-effective.
Solution Approach 2:
Different parts of the device have different quality requirements: the support disk requires high structural strength and thickness, while the intermediate disk requires friction surface properties. By applying local quality principles, each component is designed with the specific properties needed for its function, avoiding the need to make the entire assembly overly complex.
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 approach reduces manufacturing time and costs by facilitating the secure attachment of friction linings on thinner carriers, enabling faster and more efficient production of frictionally-acting devices without compromising performance.
Implementation Method 1
easy to fix the friction lining (78) on the intermediate disk (74)
Implementation Method 2
the disks of the two disk sets can be frictionally engaged with one another
Data Source
AI summary
The present invention relates to a frictionally-acting device (2) comprising a disk pack (32) made from a first disk set (34) and a second disk set (46), wherein disks of the disk sets (34, 46) are arranged alternating one after another and can be frictionally engaged with one another. An intermediate disk (74), provided with a friction lining on one side, is arranged between a support disk (70) and a disk (36) of the first disk set (34) adjacent to the support disk (70), the intermediate disk (74) is in rotary driving connection with a second disk carrier (20), and the friction lining of the intermediate disk (74) faces the support disk (70).