Cantilevered Tower Crane Jib for High-Voltage Cable Support
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Solution Overview
Problem
Existing support installations for high-voltage electric cables are complex and time-consuming to set up, requiring the unfolding and positioning of auxiliary bearing legs, which complicates site implementation and occupies excessive space.
Innovation Solution
A support installation featuring a tower crane with a mast and jib that is cantilevered in service configuration, eliminating the need for an auxiliary bearing leg, with support members secured to the jib and extending laterally to support cables, and incorporating a locking device to stabilize the jib, allowing for rapid and space-efficient deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an auxiliary bearing leg is used to support the jib opposite the mast, then the jib can be properly supported and balanced, but the installation becomes complex and time-consuming to set up
Solution Approach 1:
The patent removes the auxiliary bearing leg from the system entirely. Instead of supporting the jib from below with an additional leg, the invention uses the cantilevered jib structure itself supported only by the mast, eliminating the need for the complex auxiliary bearing leg assembly and its positioning requirements.
Solution Approach 2:
Rather than using an auxiliary bearing leg to push up or support the jib from the ground level opposite the mast, the invention inverts the approach by having the mast alone support the cantilevered jib structure, with support members extending from the jib to hold the cables.
2Strength
If an auxiliary bearing leg is positioned and unfolded to support the jib, then proper structural support is achieved, but the implantation time increases
Solution Approach 1:
The auxiliary bearing leg is completely removed from the system. The mast alone provides structural support for the cantilevered jib, eliminating the time-consuming processes of unfolding and positioning the bearing leg while maintaining adequate structural support through the simplified configuration.
3Stability of the object's composition
If an auxiliary bearing leg is deployed to support the jib, then the structure is stable, but the overall space occupied on the ground increases
Solution Approach 1:
The auxiliary bearing leg is eliminated, removing its ground footprint from the system. The mast and cantilevered jib structure occupy minimal ground space while maintaining stability through the cantilever design and support members positioned along the jib length.
Data Source
AI summary
A support installation includes support members for supporting an electric cable, a tower crane, a mast and a jib linked to an upper portion of the mast. The jib and the mast respectively extend according to a jib direction and a substantially vertical mast direction. The support members are secured to the jib and disposed at a plurality of locations distant according to the jib direction. The support members extend transversally to the jib direction to protrude laterally from the jib. The jib is cantilevered when the support installation is in the service configuration.