Driven Transport Roller Fluid-Tight Sealing Design
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Solution Overview
Problem
Driven conveyor rollers face mechanical wear, noise, and friction losses due to exposure to foreign particles and lubricant leakage, which compromises their operational reliability.
Innovation Solution
The design incorporates a solid electrical wire line connected to a drive within the conveyor roller, sealed through a crimp connector configuration that prevents fluid penetration and leakage, ensuring a fluid-tight seal and reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electrical connectors are used in driven conveyor rollers, then electrical connection is achieved, but foreign particles can enter and lubricants can leak, compromising operational reliability
Solution Approach 1:
The patent employs a fluid-tight sealing structure (essentially a flexible barrier) at the passage opening that prevents foreign particles from entering the conveyor roller body while allowing the solid wire line to pass through. This sealing mechanism isolates the internal lubricated environment from external contamination, directly resolving the contradiction between maintaining reliability and preventing harmful particle ingress.
2Reliability
If conventional electrical connectors are used in driven conveyor rollers, then electrical connection is achieved, but lubricants escape and mechanical wear increases, compromising operational reliability
Solution Approach 1:
The fluid-tight sealing structure prevents lubricant from escaping through the passage opening where the electrical connection is made. This sealing barrier maintains the lubricant level necessary for bearing operation, preventing the substance loss that would otherwise lead to increased mechanical wear and reduced reliability.
3Ease of operation
If stranded electrical lines are used inside the conveyor roller, then flexibility is improved, but lubricant can penetrate through the strands, increasing mechanical wear
Solution Approach 1:
Instead of using flexible stranded lines that allow lubricant penetration, the patent inverts the approach by using a solid wire line that is impervious to fluid flow. This solid conductor, while less flexible than stranded wire, prevents lubricant loss and mechanical wear, prioritizing reliability over flexibility in this critical application.
4Ease of operation
If passage openings are left open for electrical connections, then electrical access is achieved, but foreign particles enter and lubricants escape, reducing operational reliability
Solution Approach 1:
The sealing structure at the passage opening provides a barrier that allows electrical connection access while preventing particle ingress and lubricant egress. This resolves the contradiction by maintaining both accessibility for electrical connections and protection of the internal environment for reliable operation.
Data Source
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AI summary
In one aspect, the invention relates to a driven transport roller (1), comprising: at least one axle body (3), which has at least one passage opening (19); a transport roller jacket (5), which is rotatably supported on the at least one axle body (7); a drive (9), by means of which the transport roller jacket (5) can be caused to rotate in relation to the at least one axle body (3); at least one electrical wire line(11 a, 11 b), which is electrically connected at a first end to the drive (9) and which is connected at a second end to an associated electrical stranded-wire line (15a, 15b) in a connection configuration (13), wherein the connection configuration (13) is arranged in the passage opening (19) and the passage opening (19) is closed in a fluid-tight manner.