Rail Nozzle Mounting via Vertical Fastening and Elastic Deformation
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Solution Overview
Problem
Existing foreign material removing devices for track turnout portions face issues with securely attaching nozzles to the rail belly portion without machining the rail, leading to potential gaps and interference with point rails during operation.
Innovation Solution
The device employs a fixing member with a tapered surface and elastic deformation to securely attach the nozzle pipes to the stock rail's belly portion, preventing movement and interference with point rails, even when compressed air is sprayed, without requiring special machining of the rail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the bolt is tightly fastened in the horizontal direction, then the fixing bracket is securely attached to the stock rail, but a gap is produced between the rail belly portion and the nozzles
Solution Approach 1:
The patent inverts the conventional horizontal fastening approach by using vertical fastening instead. The fixing bracket is attached to the lower surface of the stock rail through vertical bolts, which eliminates the gap formation issue while maintaining secure attachment. This inversion of the fastening direction resolves the contradiction between attachment strength and manufacturing precision.
Solution Approach 2:
The patent transitions from horizontal attachment to vertical attachment, changing the dimension of fastening. By fastening the fixing bracket vertically to the lower surface of the stock rail, the system achieves both secure attachment and proper positioning of nozzles against the rail belly portion, resolving the gap issue without compromising attachment strength.
2Productivity
If the nozzles are tightly attached to the rail belly portion, then foreign material removal effectiveness is improved, but the point rails cannot move away from the stock rails
Solution Approach 1:
The patent segments the attachment system into a fixing bracket that is separately attached to the lower surface of the stock rail, with nozzles then attached to the fixing bracket. This segmentation allows the nozzles to be positioned for effective foreign material removal while the fixing bracket absorbs the attachment forces, preventing interference with point rail movement.
Solution Approach 2:
The fixing bracket acts as an intermediary between the stock rail and the nozzles. It provides a stable mounting platform that secures the nozzles in the correct position for effective foreign material removal, while its attachment to the lower surface of the stock rail ensures it does not interfere with the lateral movement of point rails.
3Productivity
If the nozzles are positioned close to the point rails for effective foreign material removal, then removal effectiveness is improved, but the nozzles may interfere with point rail operation
Solution Approach 1:
The patent positions the nozzles in the vertical dimension by attaching the fixing bracket to the lower surface of the stock rail and extending nozzles toward the rail belly portion. This vertical positioning allows the nozzles to be close enough for effective foreign material removal while maintaining sufficient horizontal clearance from the point rails to prevent interference with their lateral movement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution ensures stable and tight attachment of nozzles to the stock rails, preventing interference with point rails and ensuring effective removal of foreign materials without damaging the equipment, while allowing for easy installation without rail machining.
Implementation Method 1
The device employs a fixing member with a tapered surface and elastic deformation to securely attach the nozzle pipes to the stock rail's belly portion
Implementation Method 2
spray the compressed air from the compressed air source device to a front end side of the point rail
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
There is provided a foreign material removing device of a track turnout portion which can tightly attach and fix nozzles to a rail belly portion stably without machining a rail itself. A foreign material removing device 100 of a track turnout portion which has point rails 502 which can move to contact and move away from stock rails 501 of the track turnout portion 800, and which removes a foreign material dropped between the stock rail 501 and the point rail 502, includes a piping unit which includes a plurality of nozzle portions 110 which spray compressed air AIR to remove the foreign material, and the piping unit includes a close-contact arrangement structure in which the piping unit is arranged in close contact with a lateral surface of the stock rail 501 opposed to the point rail 502.