Cable Car Carriage Pressing Mechanism for Autonomous Cable Grip
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Solution Overview
Problem
Existing cable car systems face issues with autonomy, as they rely on pull cables that can fail, require large and expensive motors, and have poor adhesion and maintenance-intensive structures due to uneven load distribution and complex designs.
Innovation Solution
A cable car carriage with a pressing mechanism that adjusts crawler distance and force, using spring tensioning elements and hydraulic cylinders to ensure adhesion and distribute load uniformly, allowing autonomous movement and efficient operation on various cable types and diameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If gondolas are adjusted along the support cable by means of a pull cable, then the gondolas can be transported along the cable, but the gondolas cannot run autonomously and require large and expensive motors
Solution Approach 1:
The invention extracts and removes the pull cable system from the gondola design. Instead of using a pull cable to move the gondola, the gondola is equipped with its own drive unit that directly drives the crawler chains, enabling autonomous movement without requiring external pull cables or large motors.
Solution Approach 2:
The gondola becomes self-sufficient by integrating a compact drive unit that directly powers the crawler chains. This self-service capability allows the gondola to move autonomously along the support cable without external assistance, eliminating the need for pull cables and large motors.
2Reliability
If crawler chains are used to move along the support cable, then the gondola can be transported, but adhesion is poor and the structure is maintenance-intensive
Solution Approach 1:
The invention changes the operational parameters of the crawler chains by introducing a pressing mechanism that dynamically adjusts the pressing force between the crawlers and the support cable. This ensures optimal adhesion under varying load conditions, improving reliability while the modular design simplifies maintenance.
Solution Approach 2:
The pressing mechanism dynamically adjusts the distance and pressing force between the crawler chains based on operational conditions. This dynamic adaptation ensures consistent adhesion to the support cable regardless of load variations, thereby improving reliability and reducing maintenance needs.
3Reliability
If the pressing force of the crawlers is increased to improve adhesion, then better grip on the cable is achieved, but stress on components increases
Solution Approach 1:
The pressing mechanism optimizes the pressing force parameter by adjusting it to the minimum necessary value for reliable adhesion. This prevents excessive stress on components while maintaining sufficient grip on the support cable, resolving the contradiction between adhesion and component stress.
4Adaptability or versatility
If the distance between crawlers is fixed, then the structure is simpler, but the cable car cannot adapt to various cable types and diameters
Solution Approach 1:
The distance between the crawler chains is made dynamically adjustable through the pressing mechanism. This allows the cable car to adapt to different cable types and diameters by modifying the crawler spacing and pressing force, achieving versatility without excessive structural complexity.
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
Enables autonomous and efficient transport along a support cable with improved adhesion and reduced stress on components, minimizing maintenance needs and preventing slippage, while allowing for uniform load distribution and smooth operation.
Implementation Method 1
The pressing mechanism includes at least one spring tensioning element which biases the two crawlers toward one another
Implementation Method 2
the pressing mechanism includes at least one biasing cylinder which counteracts the force of the spring tensioning element
Data Source
AI summary
A cable car carriage for transporting goods or passengers has two opposing spaced-apart crawlers. Each of the crawlers has a crawler chain composed of juxtaposed chain links. A support cable can be inserted between the opposing crawlers on the opposing chain links of the crawler chains. A pressing mechanism connects the crawlers with one another, and is designed to adjust the distance between the crawlers as well as the pressing force of the two crawlers relative to each other and/or the pressing force of the two crawlers against the support cable. The crawler chains are driven in a circulating movement by a drive via a crawler running gear, thus moving the cable car carriage along the support cable. A cable crane, a passenger gondola, a cable saddle, and a transport assembly employing the cable car carriage are also disclosed.