Intersecting Track Switching Device for Compact Rail Systems
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Solution Overview
Problem
Existing track transportation systems require elongated switching sections to allow vehicles to move between main tracks in both directions, increasing the occupation range and making it difficult to introduce new systems into cities.
Innovation Solution
An intersecting track system with a side guide system for main tracks and a center guide system for crossover tracks, combined with a switching device in the intersecting area, allows vehicles to switch directions without needing a large-scale mechanism, reducing the length of the switching section and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a switching section using a crossover track is installed to enable vehicles to move between main tracks in both directions, then the switching capability is improved, but the occupation range on the track increases and the switching section becomes elongated
Solution Approach 1:
The guide portions are segmented into first guide portions for main tracks and second guide portions for crossover tracks, allowing independent positioning and function optimization for each segment
Solution Approach 2:
The crossover tracks are positioned above the main tracks in a vertical dimension, allowing vehicles to switch between main tracks by moving upward onto the crossover track and then downward, rather than requiring horizontal overlap of guide portions
2Adaptability or versatility
If the switching section is elongated to provide switching capability in both directions, then the switching versatility is improved, but the section length increases making it difficult to introduce the system into cities
Solution Approach 1:
By utilizing the vertical dimension to position crossover tracks above main tracks, the patent eliminates the need for elongated horizontal switching sections, compacting the overall system length while maintaining full switching versatility in both directions
Solution Approach 2:
The crossover track structure serves multiple functions: it enables switching between main tracks in both directions, provides a compact design, and allows the same configuration to handle bidirectional traffic without requiring separate switching sections for each direction
3Device complexity
If crossover tracks also employ the side guide system, then the structure is simplified, but the overlapping section required to transfer vehicles between guide portions increases the switching section length
Solution Approach 1:
Different guide systems are applied to different locations: the side guide system is used for main tracks where vehicles run at high speed, while the center guide system is used for crossover tracks where vehicles switch directions, optimizing each location for its specific function
Solution Approach 2:
By positioning the center guide portions of the crossover tracks above the main tracks in the vertical dimension, the patent eliminates the need for horizontal overlapping sections that would be required if the side guide system were used for crossover tracks
Data Source
AI summary
An intersecting track includes: two main tracks; a pair of first guide portions disposed in the main tracks and guide a pair of first guide wheels of the vehicle; a pair of crossover tracks disposed over the main tracks to intersect each other; a second guide portion disposed inside each of the pair of crossover tracks and guides a second guide wheel; a switching portion that switches a direction of the vehicle to a direction along the main tracks and a direction along the crossover track; and a switching device disposed in an intersecting area of the second guide portions in the pair of crossover tracks, selectively switches a direction to a direction along one of the second guide portions and a direction along the other of the second guide portions, and guides the second guide wheel in any one of the directions.