Contact Wire Tensioning Weight Assembly for Fast Force Adjustment
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Solution Overview
Problem
Existing clamping devices for rail-bound traffic require lengthy on-site assembly and cannot be easily modified to change the clamping force without disassembling the device, which is inefficient and time-consuming, especially in limited maintenance intervals and hard-to-reach locations.
Innovation Solution
A clamping device with weight elements that can be easily removed and added in two parts, allowing for changes in the total mass of the clamping weight without disassembling the holder frame, and a pre-assembled configuration that can be delivered to the site for quicker assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the guying device is assembled on-site from separate components, then the device can be properly installed and secured, but the assembly time is excessively long and productivity is reduced
Solution Approach 1:
The guide rods are pre-assembled and securely connected to each other and to the cross member before delivery to the installation site. This preliminary assembly allows the main structural components to be prepared in advance, reducing on-site assembly time while maintaining installation stability.
Solution Approach 2:
The guying device is divided into separable components: guide rods, cross member, and mounting structure. The mounting structure can be detached to allow removal of guide rods from the cross member, enabling flexible transportation and simplified on-site assembly while maintaining overall structural integrity.
2Productivity
If the guying device is transported in assembled state, then assembly time is reduced, but the device cannot be properly secured without additional fastening
Solution Approach 1:
The mounting structure is pre-assembled with the guide rods and cross member at the factory, creating a stable structural unit that can be transported and installed as a complete assembly. This preliminary assembly ensures proper alignment and structural integrity before field installation.
Solution Approach 2:
The mounting structure is designed with detachable connections that allow it to be removed after the guide rods are permanently secured to the wall. This dynamic design provides stability during transport and installation, then allows disassembly for final mounting without requiring additional fastening components.
3Adaptability or versatility
If the clamping force is changed by modifying the device structure, then the clamping force can be adjusted, but the device complexity increases and assembly becomes more difficult
Solution Approach 1:
The clamping force is adjusted by changing the mass parameter of the guy weight rather than modifying the structural design of the device. Different weights can be selected or combined to achieve the required clamping force for different applications, maintaining simple device geometry while providing adaptability.
Solution Approach 2:
The guy weight is divided into separate weight elements that can be individually added to or removed from the holding frame. This segmentation allows flexible adjustment of the total mass to achieve different clamping forces without requiring structural modifications to the guide rods or mounting structure.
4Reliability
If the weight elements are secured firmly in the holding frame, then the device stability is improved, but the weight elements cannot be easily removed or added
Solution Approach 1:
The connection between weight elements and the holding frame is designed to be dynamically adjustable. During normal operation, the weights are securely held in place to maintain device stability. When maintenance is required, the connection can be easily released to allow removal or addition of weight elements without disassembling the entire device.
Solution Approach 2:
The holding frame is pre-configured with guide devices and positioning features that automatically guide weight elements into their correct positions and secure them firmly. This preliminary configuration ensures stable operation while the simple interface allows easy access for maintenance operations.
Data Source
Figure 1~2
Figure 3~7
AI summary
The present invention relates to a tensioning device for contact wires and/or support cables (1) of contact wires, in particular for rail-bound traffic, comprising a tensioning weight (3) which can be connected or is connected to the contact wire and/or the support cable (1) via a connecting cable (2), wherein the tensioning weight (3) comprises at least two guide devices (4) by which the tensioning weight (3) is movably guided along two guide rods (5) which are substantially parallel to each other.