Fork Carriage Assembly with Variable Reinforcement Bar
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Solution Overview
Problem
The high cost of designing and producing hot rolling dies for manufacturing fork-supporting members with different profiles for materials handling vehicles, which limits the economical production of fork carriages capable of supporting various fork sizes and loads.
Innovation Solution
A method involving an H-shaped fork-supporting bar with differently sized fork-receiving hooks and a reinforcement bar welded to provide structural reinforcement, allowing the same die to produce fork carriages for supporting forks of different sizes and loads by varying the position and size of the reinforcement bar and using fillet welds for enhanced strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a specifically designed hot rolling die is used to manufacture fork-supporting members with different profiles, then the structural integrity and load-bearing capacity are improved, but the manufacturing cost increases significantly
Solution Approach 1:
A single hot rolling die is designed to produce fork-supporting members with multiple different profiles by varying the positioning and size of reinforcement bars. The die can accommodate different reinforcement bar configurations (positions, sizes, orientations) to create fork-supporting members suitable for different fork sizes and load requirements, eliminating the need for multiple specialized dies while maintaining structural integrity.
Solution Approach 2:
Reinforcement bars are strategically positioned at specific locations along the fork-supporting bar based on the required load-bearing capacity and fork size. The reinforcement bars can be placed at different positions (e.g., near the fork-receiving hook, along the length of the bar) and in different configurations to provide localized strengthening where needed, allowing a single die to produce varied profiles with appropriate local reinforcement.
2Adaptability or versatility
If multiple hot rolling dies are designed for different fork sizes and loads, then the adaptability and versatility of fork carriages are improved, but the device complexity and production cost increase
Solution Approach 1:
The hot rolling die is designed as a universal tool that can produce fork-supporting members for different fork sizes and load capacities. By incorporating variable reinforcement bar configurations within the same die design, the system achieves multi-functionality, allowing a single die to replace multiple specialized dies while maintaining adaptability to different application requirements.
Solution Approach 2:
The die design incorporates the ability to vary parameters such as reinforcement bar position, size, and orientation to produce different fork-supporting member profiles. These parameter changes within a single die system enable the production of diverse fork carriages suitable for different fork sizes and loads without increasing die complexity or quantity.
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
This approach reduces manufacturing costs by utilizing a single hot rolling die to produce fork carriages that can support a range of fork sizes and loads, enhancing structural integrity and rigidity while accommodating various fork sizes and loads efficiently.
Implementation Method 1
Coupling the reinforcement bar to the fork-supporting bar may comprise welding the reinforcement bar to the first side of the fork-supporting bar opposite the second side near the one fork-receiving hook
Implementation Method 2
Coupling may further comprise making a first fillet weld between a side surface of the reinforcement bar and an upper corner of the fork-supporting bar. Coupling may further comprise making a second fillet weld between a bottom surface of the reinforcement bar and a lower side surface and a lower corner of the fork-supporting bar
Data Source
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AI summary
A method is provided for manufacturing a fork carriage comprising: providing a fork-supporting bar having first and second fork-receiving hooks, wherein the second hook is of a larger size than the first hook; based on a size of one or more forks desired to be mounted on the fork-supporting bar, positioning the bar such that one of the first and second fork-receiving hooks corresponding to the size of the one or more forks is located outwardly to receive the one or more forks on the one fork-receiving hook; and coupling a reinforcement bar to a side of the fork-supporting bar opposite the side near the one fork-receiving hook. A carriage assembly comprising a fork carriage including an upper member comprising a fork-supporting bar having an outer fork-receiving hook and a reinforcement bar is also provided.