Overhead Line Laying Machine with Directional Deflection
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Solution Overview
Problem
Existing machines for laying catenary cables struggle to efficiently lay multiple cables in any working direction without material damage and with clear cable routing, as they often require complex guidance and are not designed for simultaneous laying of different types with precise tension.
Innovation Solution
A machine with independently pivotable support frames and deflection devices between guide rollers allows for flexible cable guidance, enabling the simultaneous laying of multiple catenary cables in any direction with gentle bending and clear routing, using space-saving storage drums and tension devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple catenary cables are laid simultaneously using existing machines, then productivity increases, but cable routing becomes complex and interference between cables occurs
Solution Approach 1:
The machine divides cable guidance into separate guide devices for different cable types (contact wire and support cable), with dedicated storage drums and tensioning devices for each cable. This segmentation prevents cable interference while maintaining simultaneous laying capability.
Solution Approach 2:
The patent arranges storage drums and guide devices in the longitudinal direction of the machine rather than laterally, utilizing the longitudinal dimension to separate cable paths. This dimensional reorganization eliminates cable interference while preserving simultaneous laying productivity.
2Volume of moving object
If catenary cables are laid with tight bending radius, then space is saved, but material damage occurs
Solution Approach 1:
Deflection devices are positioned before the cables enter the storage drums and guide rollers, pre-bending the cables in a controlled manner with sufficient bending radius. This preliminary action prevents sharp bends that would damage the cable material while maintaining compact machine dimensions.
Solution Approach 2:
The deflection devices act as intermediary elements between the cable source and the storage drums, providing a transition zone that gradually bends the cable. This intermediary structure protects the cable from direct contact with sharp edges or tight bends, reducing material stress.
3Area of stationary object
If storage drums and tension devices are arranged compactly, then machine size is reduced, but cable guidance becomes complicated
Solution Approach 1:
The patent utilizes the longitudinal dimension of the machine to arrange storage drums and guide devices in sequence along the travel direction, rather than spreading them laterally. This dimensional reorganization reduces the machine's lateral footprint while maintaining clear, simple cable routing paths.
Solution Approach 2:
The guide devices are designed with height-adjustable guide rollers that can accommodate different cable types and routing requirements. This multi-functionality allows the same basic guide device structure to handle various cable configurations without increasing overall complexity.
4Adaptability or versatility
If the machine is designed for specific working direction only, then device complexity is reduced, but adaptability decreases
Solution Approach 1:
The machine employs asymmetric arrangements of guide devices and deflection elements that are optimized for each working direction. Each guide device configuration is tailored to its specific direction, allowing the machine to handle cables efficiently in either direction without requiring a completely symmetric, overly complex structure.
Solution Approach 2:
The support frame is designed to be pivotable about a horizontal axis, allowing dynamic reconfiguration of the guide devices and storage drums relative to the machine frame. This dynamic capability enables the machine to adapt to different working directions while maintaining a relatively simple base structure.
Data Source
Figure 1~2
Figure 3~4
AI summary
A machine (1) for laying overhead lines (2) of an overhead contact system (5) has a first guiding means (15) - provided for use in a first working direction (10) of the machine (1) - and a second guiding means (18) - provided for use in a second working direction of the machine (1). Each guiding means (15, 18) is equipped with cable pulleys (20), which are adjustable by means of height adjustment drives (19), for guiding the overhead lines (2), which are unwound from the storage drums (17). The storage drums (17) are arranged directly behind one another in relation to the machine longitudinal direction; tension devices (16) are arranged such that they adjoin said storage drums. Arranged between each storage drum (17) and the tension device (16) associated with said storage drum is a deflection means (21), which has a first wire-guiding unit (22), which is arranged above the storage drum (17) in relation to a vertical, for the first working direction (10) and a second wire-guiding unit (23), which is arranged below the storage drum (17) in relation to the vertical, for the second working direction.