Cable Derailing Prevention Device for Cable Car Systems
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Solution Overview
Problem
Existing cable derailing prevention devices for cable car systems are unable to reliably capture the cable and prevent the driving means from becoming uncoupled at station exits, as they fail to restrict the cable's movement within the clamp's limits, leading to potential system halts and safety risks.
Innovation Solution
A cable derailing prevention device with an aligning mechanism that forces the cable into the clamp's jaw opening, utilizing a combination of rollers, support rollers, and an aligning device to ensure the cable remains centered within the clamp's capture area, along with a forced guidance mechanism to maintain alignment and prevent derailing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cable capturing device is displaceably arranged to capture derailed cable, then the system can halt when critical rope situation is exceeded, but the cable may still be deflected upwards or downwards leaving its predevised position and clamping area at the exit of the station
Solution Approach 1:
The aligning device is positioned before the coupling area to pre-align the cable in the correct position before it reaches the clamp. This preliminary alignment action ensures that when the cable arrives at the coupling area, it is already positioned correctly within the jaw opening, preventing derailing and ensuring reliable capture without requiring complex displacement mechanisms.
2Reliability
If the cable run is restricted within certain limits to permit capture by the clamp, then the clamp can capture the cable, but the cable may still be deflected from its predevised position
Solution Approach 1:
The aligning device acts as an intermediary element between the cable and the clamp. It is positioned in the cable's path before the coupling area and serves to guide and align the cable correctly, ensuring that the cable enters the clamp's jaw opening in the proper position and orientation, thereby maintaining both capture reliability and position stability.
3Reliability
If a notification device is used to switch off the system when critical rope situation is exceeded, then the system can be halted, but the cable may already be deflected and leave the clamping area
Solution Approach 1:
The aligning device performs its alignment function continuously before the coupling area, acting as a preventive measure that maintains cable position stability in advance. This eliminates the need for reactive notification and system shutdown, as the cable is already positioned correctly before reaching the clamp, preventing derailing before it occurs and eliminating response time delays.
Data Source
AI summary
The invention relates to a cable derailing prevention device for carrier/traction cables of cable car systems in an installation including: a carrier/traction cable; a multitude of rollers which flank a coupling rail and are located at the exit from the station; a multitude of clamps from which the driving means are suspended; at least one roller that has a couple and clamp and supports the cable, and a support roller or hold-down roller battery according to the cable guide, the coupling rail forming a coupling area between the cable and the clamps. According to the invention, an aligning device is mounted in front of the coupling area of the clamps on the cable before the coupling rail and limits the deviation of the cable due to a derailing on the roller battery so that the cable is always located inside the opening of the clamp.