Switching Arrangement Gear Chassis Force Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing high-voltage switching arrangements face challenges in managing increased forces due to upgraded switching speeds, leading to difficulties in controlling forces on moving parts, particularly the transmission, which can result in mechanical stress and inefficiencies.
Innovation Solution
A switching arrangement design featuring a transmission chassis that supports and guides moving parts of the gear mechanism, with a support element and transmission chassis attached independently to the contact carrier, allowing for mechanical decoupling and independent force introduction, thereby enhancing resistance to increased forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the gear is attached to the support element of the arcing contact piece, then precise relative movement between contact pieces is achieved, but the support element must withstand both supporting forces and gear forces, increasing mechanical stress
Solution Approach 1:
The patent divides the force transmission path by separating the gear from the support element. The gear is attached to the transmission chassis while the support element remains independent, allowing forces to be distributed to different structural components. This segmentation prevents the support element from bearing both supporting forces and gear forces simultaneously, resolving the strength problem while maintaining movement precision through the transmission chassis connection.
Solution Approach 2:
The transmission chassis acts as an intermediary structure that receives gear forces directly, rather than transmitting them through the support element. This intermediary connection allows the gear forces to be distributed to the robust transmission chassis structure, which is designed to handle such loads, while the support element maintains its function of supporting the arcing contact piece without excessive mechanical stress.
2Productivity
If switching speed is increased, then productivity is improved, but moving parts are subjected to increased forces, leading to greater mechanical stress on the transmission
Solution Approach 1:
The patent segments the force paths by providing separate attachment points on the transmission chassis for different components. The gear, crossbar, and support element each have independent connection points that allow forces to be distributed to different structural regions of the transmission chassis. This segmentation enables the transmission chassis to handle increased forces from high-speed switching without concentrating stress on single components.
Solution Approach 2:
The transmission chassis is designed with multiple attachment points and a robust structure that can dynamically distribute varying forces during high-speed switching operations. The chassis structure adapts to the dynamic force requirements by providing multiple load paths, allowing the system to handle increased forces from higher switching speeds while maintaining operational reliability.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A switching arrangement has a first switching contact set (3, 4) that comprises a rated current contact piece (7, 8) and an arcing contact piece (9, 10). The arcing contact piece (9, 10) and the rated current contact piece (7, 8) of the first switching contact set (3, 4) are movable relative to one another via a gear unit. The arcing contact piece (9, 10) is supported by a support element (19) on a contact carrier (5, 6) of the rated current contact piece (7, 8). The gear unit has a gear unit chassis which is supported, particularly directly, on the contact carrier (5, 6).