Elevated String Transport Track Assembly for Sagging Compensation
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Solution Overview
Problem
Existing transport systems face challenges in achieving vertical operating flatness and 'velvet-smooth' track surfaces necessary for high-speed movement of wheeled vehicles, with complexities in manufacturing and installation processes.
Innovation Solution
A track structure comprising an aggregated extended body with a bearing part and rail cord, where the load-bearing member is fixed relative to the rolling surface at a specific height ratio, and the rail cord is aligned and fixed to ensure vertical flatness and smoothness, using damping and noise-absorbing filler materials to stabilize the track structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If inserts of variable height are used to equalize natural sagging of load-bearing member, then the track structure can accommodate sagging, but the technology of manufacturing and installation becomes complicated
Solution Approach 1:
The patent extracts the height adjustment function from separate inserts and integrates it into the bearing part itself, which is manufactured with predetermined variable height profiles. This eliminates the need for separate height-equalizing inserts and simplifies installation while maintaining track stability.
Solution Approach 2:
The bearing part is pre-manufactured with the correct variable height profile during factory production, before installation at the construction site. This preliminary preparation of geometric parameters eliminates complex field adjustments and simplifies installation procedures while ensuring track stability.
2Stability of the object's composition
If inserts of variable height are used to equalize natural sagging, then sagging can be compensated, but the effect of 'velvet-smooth track' is not achieved
Solution Approach 1:
The bearing part is designed with locally varied height profiles that precisely match the required track geometry at different positions along the span. This local optimization of geometric parameters ensures both sagging compensation and velvet-smooth track surface without requiring additional height-equalizing inserts.
3Strength
If main cord is connected with auxiliary cord by supporting elements of various height, then bearing capacity and rigidity are provided, but the process of manufacturing rail cords in field conditions becomes complicated
Solution Approach 1:
The patent merges the functions of the bearing part and rail cord into a single integrated assembled unit. The bearing part with predetermined height profiles is combined with the rail cord through specialized connection elements, creating a unified structure that provides bearing capacity and rigidity while simplifying field installation compared to separate supporting elements.
4Ease of manufacture
If track structure uses conventional methods, then manufacturing can be performed, but vertical operating flatness and longitudinal evenness are not ensured
Solution Approach 1:
The bearing part is pre-manufactured with precisely controlled variable height profiles during factory production. This preliminary preparation of geometric parameters ensures that when the bearing part is installed and combined with the rail cord, the required vertical flatness and longitudinal evenness are automatically achieved without requiring complex field adjustments.
Data Source
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AI summary
The invention relates to the area of transport communications, particularly, to the aboveground (elevated) complex transport systems of string type, which provide high-speed cargo and passenger traffic. Transport system by Yunitski includes track structure (4) tensioned above foundation (1) in spans (2) between supports (3), which comprises aggregated extended body (5), consisting of bearing part (6), containing prestressed load-bearing member (7), and of rail cord (8) connected with it, having rolling surface (A) for motion of vehicle (9) mounted thereon. In bearing part (6) of extended body at height H, m, having variable value in span (2) between supports (3), load-bearing member (7) is fastened, with use of means of reciprocal movement and fixation of arrangement, whereas rail cord (8) is equipped with, at least, two extended longitudinal guide plates (11) of height h, m, positioned axisymmetrically to its longitudinal axis X at distance L from each other, equal to the width of bearing part of extended body. Bearing part and rail cord are configured to be reciprocally moving along the vertical Z and afterfixing to each other at design height P, m, defined by the respective dependence. As a result, high precision of positioning of rolling surfaces (A) of rail cord (8) relative to load-bearing member (7), is achieved.