Modular Rail Car Mover Attachment Segmentation
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Solution Overview
Problem
Conventional rail car movers are dedicated equipment, costly for smaller yards, and pose safety issues due to complex wiring and potential equipment mismatch, leading to inefficient and unsafe rail car movement.
Innovation Solution
A modular rail car mover attachment with a remote-controlled emergency brake actuator, high-volume air compressor, and indicator arm for secure coupling verification, allowing use with various machines and reducing dependency on specific equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated rail car movers are used, then rail car movement is reliable, but equipment cost is prohibitive for smaller yards
Solution Approach 1:
The rail car mover is divided into a base machine (loader) and a separate modular attachment. The attachment contains the rail car coupler, air tanks, and control systems, while the base machine provides propulsion. This segmentation allows the expensive specialized functions to be isolated in a removable attachment that can be transferred between different base machines, reducing the need for multiple dedicated movers.
Solution Approach 2:
The modular attachment is designed to be compatible with multiple types of base machines (loaders, tractors, etc.), enabling a single attachment to serve multiple functions and multiple machines. This universality reduces the total number of specialized devices needed in smaller yards, lowering equipment costs while maintaining reliable rail car movement capability.
2Ease of manufacture
If conventional machinery with bumpers is used to move rail cars, then equipment cost is reduced, but safety issues arise due to weak connection
Solution Approach 1:
The connection system is segmented into the base machine's coupling mechanism and the attachment's rail car coupler. The coupler is a specialized component designed specifically for secure rail car connection, separating the propulsion function (base machine) from the secure coupling function (attachment). This ensures strong, safe connection while allowing use of conventional base machines.
Solution Approach 2:
The modular attachment acts as an intermediary between the conventional base machine and the rail car. It provides the specialized rail car coupler interface that ensures strong, safe connection, while the base machine simply provides propulsion. This intermediary role resolves the conflict between using conventional machinery and ensuring secure connection.
3Ease of operation
If complex electrical wiring is used for control panel operation, then attachment functionality is achieved, but adaptability to different loaders is reduced
Solution Approach 1:
The air control system is extracted from the loader's electrical system and integrated into the attachment's self-contained pneumatic system. The air tanks and valves are mounted on the attachment itself, with controls that can be operated from the loader's existing cab controls through simple hydraulic or pneumatic interfaces rather than complex custom electrical wiring. This extraction enables compatibility with different loaders without requiring extensive rewiring.
Solution Approach 2:
The attachment uses a pneumatic control system with air tanks, valves, and lines instead of complex electrical wiring for operating the coupler and brakes. This pneumatic system can interface with the hydraulic systems of different loaders through standard adapters, providing adaptability across multiple machine types while maintaining full control functionality.
4Ease of operation
If air tanks are mounted on the attachment, then brake control is enabled, but safety risks increase if tanks are damaged
Solution Approach 1:
The air tanks are mounted within the protected enclosure of the attachment, which shields them from external damage. The attachment structure acts as a cushioning barrier between potential impact sources and the tanks, preventing the tanks from becoming projectiles while still enabling effective brake control through the pneumatic system.
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 efficient and safe movement of rail cars with different equipment, simplifies wiring, and provides self-activating emergency brakes and visual confirmation of attachment status, reducing equipment downtime and safety risks.
Implementation Method 1
The attachment has a compressor that fills multiple tanks which are plumbed to the rail car coupler latch to operate that latch
Implementation Method 2
the attachment includes a sliding frame carriage that includes a rail car coupler latch designed to couple to a corresponding latch on a rail car so the loader can move the rail car while joined with it. The attachment has a compressor that fills multiple tanks which are plumbed to the rail car coupler latch to operate that latch
Data Source
AI summary
A rail car mover attachment includes a remote removably mounted in a machine cab and including an emergency actuator to abruptly activate a rail car brake, a lock pin actuator to move a lock pin relative to a rail car latch in a rail car coupler, and/or a controlled stop actuator to selectively activate a rail car brake. The attachment can include an onboard compressor, such as a high volume compressor. The attachment can include a disconnect unit that self-activates rail car brakes if the attachment loses power or detaches from equipment. The attachment can include a light showing the attachment is charged and running or showing a fault. The attachment can include a laterally extending indicator arm deployable when the rail car coupler is fully attached to the rail car, and that extends beyond a rail car width so that a spotter can visually verify the coupler status. A related method of use also is provided.