Rotatable Rail Grinding Stones for Contamination Control
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Solution Overview
Problem
Existing rail grinding technologies face inefficiencies due to contamination of grindstones, which impairs grinding quality and efficiency, and require manual intervention for cleaning, disrupting the grinding process.
Innovation Solution
A rail grinding device with rotatable grindstones that can be turned at intervals using a rotary drive, allowing for automatic removal of abraded material and ergonomic remote control, enabling continuous operation without interrupting the grinding process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If grindstones are used for rail grinding, then grinding capability is provided, but contamination of the working surface impairs grinding quality and efficiency
Solution Approach 1:
The invention applies the inversion principle by rotating the grindstone 180 degrees to use the opposite surface. Instead of cleaning the contaminated surface, the system inverts the grindstone so that the clean opposite surface contacts the rail, automatically removing the contaminated surface from service without requiring manual cleaning operations.
Solution Approach 2:
The invention implements dynamics by making the grindstone rotatable about a vertical axis, transforming it from a static grinding tool to a dynamic one that can change orientation. This rotational capability allows the system to adapt to the wear state of the grindstone surfaces and maintain grinding efficiency through automated surface replacement.
2Ease of operation
If manual cleaning of grindstones is performed, then contamination is removed, but the grinding process is interrupted and manual effort is required
Solution Approach 1:
The system applies self-service by automatically rotating the grindstone when contamination is detected, eliminating the need for manual cleaning operations. The automated rotation mechanism performs the maintenance function without human intervention, allowing the grinding process to continue uninterrupted while the grindstone maintains its cleaning capability through automatic surface replacement.
Solution Approach 2:
The invention implements periodic action by rotating the grindstone at scheduled intervals or when contamination is detected. This periodic rotation ensures that the grindstone surfaces are systematically replaced before complete contamination occurs, maintaining consistent grinding quality without requiring continuous manual intervention.
3Productivity
If grindstones are rotated to remove abraded material, then grinding efficiency is maintained, but additional mechanical complexity is introduced
Solution Approach 1:
The rotary drive mechanism serves multiple functions: it rotates the grindstone to present a clean working surface, enables remote operational control, and facilitates ergonomic operation. By making the rotation mechanism multi-functional, the invention reduces the need for separate systems for each function, thereby mitigating the increase in overall device complexity while achieving multiple operational benefits.
4Ease of operation
If remote control of grindstone turning is implemented, then ergonomic operation is improved, but control system complexity increases
Solution Approach 1:
The invention introduces an intermediary control system that enables remote operation of the grindstone rotation. This intermediary control mechanism allows the operator to initiate and monitor the rotation process from a remote position, improving ergonomics by eliminating the need for direct manual handling of the heavy grindstone while maintaining relatively simple control architecture through standardized remote control interfaces.
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
Prevents contamination of grindstones, maintains grinding efficiency, and allows for uninterrupted operation by rotating the stones, thereby minimizing downtime and manual effort.
Implementation Method 1
the abraded material is removed from the grindstone almost automatically and with only minimal expenditure of work and time due to the friction now taking place in the opposite direction
Implementation Method 2
Two further adjustment drives (14) enable a vertical adjustment of the frame (11) relative to the flanged wheels (12) and thus relative to a track plane (15) or a rail running surface (16) of the rail (2)
Data Source
AI summary
The invention relates to a device for grinding rails (2) of a track (3) which device is equipped with a frame (11) which is movable on the track by means of rail bogies. Grindstones (17) which are each associated with a rail (2) and are disposed one behind the other in the longitudinal direction of the rail are provided on said frame, wherein each grindstone (17) can be adjusted in the vertical direction by means of a drive unit (14, 20) or can be delivered to the running surface (16) of a rail. At least one grindstone (17) is designed to be rotatable by 180° about a vertical axis (19) by means of a dedicated rotary drive (18).