Replaceable Brake Disc Plates Secured by an Enveloping Sleeve
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Solution Overview
Problem
Existing brake disc designs for heavy-duty vehicles face challenges with wear and maintenance, particularly due to the use of screws or bolts through the wear surfaces, which lead to uneven wear and difficulty in replacing disc plates without replacing the entire brake disc.
Innovation Solution
A brake disc design featuring a central disc body with releasably secured disc plates and an enveloping sleeve that applies radial pressure to the disc plates, eliminating the need for screws or bolts through the wear surfaces and allowing for easy replacement of worn disc plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screws or bolts are used to secure disc plates to the central disc body, then the disc plates can be fixed in place, but the screw or bolt heads become worn and deteriorated, and cause uneven wear on the brake pads
Solution Approach 1:
The harmful screws or bolts that cause wear are completely removed from the system. Instead, an enveloping sleeve is used that secures the disc plates without any penetrating fasteners, thereby eliminating the source of wear on both the brake pads and the fasteners themselves.
Solution Approach 2:
An enveloping sleeve is introduced as an intermediary component between the central disc body and the disc plates. This sleeve applies radial pressure to secure the disc plates without requiring screws or bolts to penetrate the wear surface, thus preventing wear on both the brake pads and the fastening elements.
2Reliability
If the entire brake disc is replaced when disc plates wear out, then reliable braking is ensured, but maintenance time and resource loss increase
Solution Approach 1:
The brake disc system is segmented into a permanent central disc body and replaceable disc plates. This allows only the worn disc plates to be replaced while retaining the central disc body, significantly reducing maintenance time and resource loss compared to replacing the entire brake disc assembly.
Solution Approach 2:
Only the worn disc plates are discarded and replaced, while the central disc body is recovered and retained for continued use. This selective replacement approach minimizes material waste and reduces maintenance time while ensuring braking reliability.
3Ease of manufacture
If screws or bolts are used to secure disc plates, then the disc plates can be attached to the central disc body, but the heads of the screws or bolts become difficult to unscrew due to wear
Solution Approach 1:
The problematic screws or bolts are completely extracted from the design. The enveloping sleeve provides a wear-free fastening mechanism that can be easily removed and reattached, making disc plate replacement simple without dealing with worn, difficult-to-unscrew fasteners.
Solution Approach 2:
The enveloping sleeve serves as an intermediary fastening mechanism that eliminates the need for traditional screws or bolts. It can be easily removed and reattached multiple times without wear, significantly improving the ease of repair and disc plate replacement.
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 design enhances maintenance efficiency by allowing for the replacement of disc plates without replacing the entire brake disc, reduces wear on brake pads, and prevents the deterioration of screw or bolt heads.
Implementation Method 1
an enveloping sleeve releasably secured to an outer circumference of the central disc body so as to apply a radially inwardly directed pressure to the first and second disc plates
Data Source
AI summary
A brake disc configured to be connected to a vehicle axle and to be squeezed between brake pads, comprising a central disc body (30) having a first and a second side, wherein the second side faces in the opposite direction compared to the first side; a first and a second disc plate (36, 38), each disc plate having a wear surface for producing friction when a brake pad is pressed against the wear surface; wherein the disc plates are releasably secured to said first side and said second side, respectively, of said central disc body, so as to enable the first and second disc plates to be replaced by other disc plates; and an enveloping sleeve (50) releasably secured to an outer circumference of the central disc body so as to apply a radially inwardly directed pressure to the disc plates.