Railroad Crossing Gate Height Adjustment Using Threaded Pipe Extension
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Solution Overview
Problem
The existing methods for adjusting the height of railroad crossing gates after road approach repairs are time-consuming and costly, requiring the replacement and reconnection of wiring conduits, which involves significant labor and disruption to train traffic.
Innovation Solution
A height adjustment assembly using an elongated externally threaded pipe with a reducer and bushing system that allows for adjustable lengthening of the wiring conduit without rewiring, enabling the gate mechanism to be raised without removing the original wiring conduit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the traditional method of replacing the wiring conduit is used to adjust gate height, then the gate height can be reestablished, but the process is time-consuming and requires significant labor
Solution Approach 1:
The wiring conduit system is segmented into modular components: the original conduit remains in place while a separate extendable conduit section with threaded pipe is added. This allows the conduit to be lengthened without replacing the entire assembly, reducing maintenance time and labor while achieving the required gate height adjustment.
2Adaptability or versatility
If the wiring conduit is removed and replaced with a longer one, then the gate height can be increased, but the complexity of the procedure increases due to rewiring requirements
Solution Approach 1:
The extendable conduit section is pre-assembled with the wiring bundle already installed and connected. This preliminary preparation allows the entire extended conduit section to be installed as a single unit, eliminating the need to disconnect and reconnect wiring during the height adjustment procedure, thereby reducing complexity while maintaining adaptability.
3Ease of operation
If a crew of three employees spends a day adjusting the gate height, then the gate can be repositioned, but the disruption to train traffic increases
Solution Approach 1:
The extendable conduit system is designed to be easily installed and adjusted by minimal personnel without requiring specialized equipment like backhoes or boom trucks. The threaded pipe mechanism allows for simple manual adjustment, enabling rapid gate height reestablishment that minimizes disruption to train traffic while maintaining operational capability.
Data Source
AI summary
A railroad crossing gate height adjustment assembly and method for reestablishing a height of the crossing gate of a railroad crossing gate apparatus. An elongated externally threaded pipe has a reducer threadably engageable at a lower, smaller end thereof onto, and is adjustably positionable along a length of the threaded pipe. A larger, upper end of the reducer is threadably lockable with a coupling previously secured at a lower end of a wiring conduit of the gate apparatus whereby the length of the wiring conduit is adjustably increased by an exposed length of the threaded pipe. A bushing having an external thread is lockably engageable onto a top surface of a gate base of the gate apparatus after the coupling and connected wiring conduit are removed, the bushing also having an external thread thereon for supportively receiving a lower end of the threaded pipe.