Brake Disc Hub Connecting Device Axial Separation
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Solution Overview
Problem
Existing connecting devices between brake discs and hubs often rust together, making it difficult to remove the brake disc, especially when made of non-rusting materials, as they are double-layered and not easily separable.
Innovation Solution
A connecting device composed of two separable layers made of non-rusting material, with a detachable firm connection on a protruding tongue, allowing axial relative movement for easy separation and assembly, reducing the risk of rusting and simplifying the fitting and removal process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a connecting device made of non-rusting material is used between brake disc and hub, then the risk of rusting up is reduced, but the device becomes double-layered and difficult to separate
Solution Approach 1:
The connecting device is divided into two separate layers (inner layer and outer layer) that can be independently handled and separated. Each layer serves the rust prevention function while the segmentation allows them to be separated axially when needed for maintenance or replacement
Solution Approach 2:
The connection between the two layers transitions from a fixed state during installation to a separable state during maintenance. The layers are designed to be dynamically separable through axial movement, allowing the system to adapt between operational and maintenance phases
2Ease of operation
If the two layers are firmly connected to facilitate handling during fitting, then ease of installation is improved, but removal and separation become more difficult
Solution Approach 1:
The two layers are pre-connected through the tongue structure before installation, allowing them to be handled as a single unit during fitting operations. This preliminary connection simplifies installation while the design maintains separability for future removal
Solution Approach 2:
The tongue structure is extracted as a separate functional element that provides the connection between layers. This extracted tongue can be designed with detachable features that allow easy separation during removal while maintaining firm connection during installation
3Ease of manufacture
If the connecting device is made as a single piece for simplicity, then manufacturing is simplified, but the ability to allow axial relative movement between layers is reduced
Solution Approach 1:
The connecting device is segmented into two distinct layers that can move axially relative to each other. This segmentation is achieved through the tongue structure that connects the layers while allowing controlled movement, providing both manufacturing simplicity and movement capability
Solution Approach 2:
The inner layer is nested within the outer layer structure, with the tongue of one layer extending into the other. This nested arrangement allows axial movement while maintaining a compact, manufacturable design that integrates well with the brake disc and hub assembly
Data Source
Figure 1
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AI summary
The invention relates to a connecting device for connection between a brake disc (2) and a hub (1). The brake disc (2) is fitted on the hub (1) via splined connection with recesses (21) on the brake disc (2) and protrusions (11) on the hub (1). The connecting device (3) is made of non-rusting material and intended to be fitted between a side surface (12) of a recess (21) and an adjacent side surface (12) of a protrusion (11). According to the invention, the connecting device (3) has two mutually abutting layers. These are connected to one another and separable from one another by only an axial relative movement between the layers. The invention also relates to a method for fitting a brake disc on a hub.