Railway Container Wagon with Detachable Loading Frames
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Solution Overview
Problem
Existing container wagons are inadequate for transporting heavy goods from the machine and steel industry, as well as for handling containers of varying sizes, due to their high dead weight and limited capacity.
Innovation Solution
The integration of detachable and variably positionable loading frames on container pins, with stanchion shoes that allow for easy handling by forklifts and support for elongated goods, enables the transport of heavy items and variable container sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional container wagons are used, then standardized container transport is achieved, but heavy goods from machine and steel industry cannot be transported
Solution Approach 1:
The wagon is divided into functional modules: a fixed wagon frame and detachable loading frames. The loading frames can be removed and replaced based on cargo requirements, allowing the wagon to switch between container transport and heavy goods transport modes
Solution Approach 2:
The wagon frame is designed with universal container pins that can accommodate both standardized containers and custom loading frames. The loading frames themselves are multi-functional, capable of carrying heavy industrial goods while maintaining compatibility with the container transport system
2Reliability
If 40ft flat wagons with stanchions are used for heavy goods, then heavy goods transport is enabled, but dead weight becomes too high for efficient container transport
Solution Approach 1:
The heavy-duty support structure is segmented into detachable loading frames that only attach to the wagon when heavy goods need to be transported. The wagon frame itself remains lightweight, with the heavy-duty stanchions and stanchion shoes only present on the removable loading frames
Solution Approach 2:
The wagon's effective weight and structural configuration change based on the loaded cargo type. When containers are transported, the lightweight wagon frame is used. When heavy goods are transported, the reinforced loading frames are attached, changing the system's structural parameters to match the load requirements
3Strength
If loading frames are made dimensionally stable with welded steel profiles, then structural strength is improved, but ease of handling and repositioning becomes difficult
Solution Approach 1:
The loading frames are pre-engineered with standardized lifting points and forklift access spaces during manufacturing. The stanchion shoes are pre-positioned with receptacles that align with container pins, allowing quick attachment and detachment without complex alignment procedures
Solution Approach 2:
Forklifts serve as intermediary equipment that enables easy handling of the dimensionally stable loading frames. The design incorporates specific geometric features (free space between stanchion shoes and beams) that accommodate forklift forks, allowing heavy loading frames to be moved by standard material handling equipment
4Device complexity
If container pins are fixed in position, then structural simplicity is maintained, but variable positioning of loading frames is limited
Solution Approach 1:
The pin positioning system is segmented into multiple discrete pin locations along the wagon frame. Each pin position corresponds to a specific hole in the loading frame, allowing the loading frame to be secured at various positions depending on cargo dimensions and weight distribution requirements
Solution Approach 2:
The pin system transitions from a fixed configuration to a dynamically adjustable configuration. The container pins remain structurally simple and fixed to the wagon frame, but the loading frames can be positioned at different locations by selecting different pin-hole combinations, providing positioning flexibility without increasing pin system complexity
Data Source
Figure 1~2
Figure 3~3a
Figure 4~5
AI summary
The carriage (1) has a carriage frame (5) provided with multiple pairs of container pins in combination with a form-stable loading frame (7), a rectangular frame and upright posts, for transportation of standard and special containers. The rectangular frame is welded with longitudinal and transverse carriers (10-12), which are made of steel profiles. The posts are located at corner regions and made of steel profiles. The loading frame is positionable on the container pins. Length of the loading frame is between 6 and 8 feet.