Railroad Stoneblower with Rotatable Blowing Tubes
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Solution Overview
Problem
Current stoneblowers are inefficient in maintaining non-uniform sections of railroad tracks, such as railroad frogs and crossings, due to their design limitations, and are also large and costly to operate.
Innovation Solution
An improved stoneblower system with independently operable workheads and rotatable blowing tubes that can be positioned precisely to dispense ballast stones into difficult-to-reach areas, utilizing a computing system to calculate and distribute the necessary amount of ballast, and featuring third point lifting arms for accessing adjacent tracks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional stoneblowers with fixed parallel blowing tubes are used, then uniform sections of rail can be maintained, but non-uniform sections such as railroad frogs and crossings cannot be effectively serviced
Solution Approach 1:
The stoneblower is divided into multiple independently operable workheads, each capable of being positioned and oriented separately. This segmentation allows each workhead to independently service different sections of the track, including non-uniform areas like frogs and crossings, without requiring the entire machine to be reconfigured.
Solution Approach 2:
The blowing tubes are made dynamically adjustable through rotational capability and independent positioning mechanisms. Each blowing tube can be rotated and positioned at different angles and locations to adapt to various track geometries, transforming the static configuration into a dynamic, adaptable system.
2Productivity
If large conventional stoneblower vehicles are deployed, then comprehensive track maintenance is possible, but manufacturing and operating costs increase significantly
Solution Approach 1:
The track maintenance function is segmented into multiple independent workheads that can be distributed along the track. This allows the maintenance task to be divided into smaller, more manageable units that can be serviced by a smaller, more cost-effective vehicle platform rather than requiring a large conventional stoneblower.
Solution Approach 2:
Each workhead is designed as a multi-functional unit that can service various types of track sections (uniform and non-uniform) through its adjustable blowing tubes. This universality means that a single smaller vehicle with multiple workheads can perform the same comprehensive maintenance functions as a large conventional stoneblower, reducing manufacturing and deployment costs.
3Adaptability or versatility
If fixed blowing tube positions are used, then simple machine design is maintained, but difficult-to-reach locations cannot be accessed
Solution Approach 1:
The blowing tubes are equipped with rotational joints and positioning mechanisms that allow them to be dynamically adjusted to reach difficult-to-access locations. The tubes can rotate and extend to various angles and positions, enabling the machine to service frogs, crossings, and other non-uniform sections that would be inaccessible with fixed tube positions.
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
Enables accurate and efficient ballast distribution under non-uniform sections, extending the lifespan of rail ties and reducing wear, while being more compact and cost-effective than traditional stoneblowers.
Implementation Method 1
a source of compressed air, and a number of workheads. Each workhead carries a pair of blowing tubes. In operation, the track lifting device raises the track rails and the underlying rail ties to which the rails are secured. The workhead forces the blowing tubes into the ballast adjacent the raised rail ties
Data Source
AI summary
The present disclosure generally relates to a railroad chassis vehicle having independently operable workheads for carrying out rail maintenance operations on non-uniform sections of railroad tracks. Related methods of operation of the railroad chassis and associated maintenance of ballast beds underlying railroad tracks are also described.