Stacker Crane Drive Wheel Pressure Adjustment From Both Sides
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Solution Overview
Problem
Conventional stacker cranes face difficulty in adjusting the contact pressure of the drive wheel against the rail due to the biasing mechanism's location, making it challenging for operators to access and adjust, thereby affecting workability.
Innovation Solution
The stacker crane incorporates first and second contact pressure adjusters positioned on both sides of the traveling direction of the drive wheel, allowing for easy adjustment of the contact pressure from both sides, facilitated by a rotatable mover with a rotating shaft and adjustable projections, enabling simple and efficient manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the biasing mechanism is provided in part in a traveling direction of the drive wheel, then the contact pressure can be adjusted, but it becomes difficult for operators to access and adjust the mechanism depending on stopping position
Solution Approach 1:
The patent positions contact pressure adjusters on both sides of the drive wheel in the traveling direction, creating accessibility from multiple spatial dimensions. This allows operators to reach the adjusters from either side regardless of the crane's stopping position, resolving the contradiction between adjustability and accessibility.
2Productivity
If the contact pressure of the drive wheel is increased, then slipping is reduced and faster traveling is achieved, but the mechanism becomes more complex
Solution Approach 1:
The patent divides the contact pressure adjustment function into separate adjusters positioned on both sides of the drive wheel. This segmentation allows independent adjustment of contact pressure from each side, simplifying the overall mechanism while enabling effective control of traveling performance.
Data Source
AI summary
A stacker crane includes a traveling assembly including a drive wheel being at least one of a first wheel and a second wheel opposing each other across a rail and a mover to move the drive wheel, the first wheel, and the second wheel. The mover includes first and second contact pressure adjusters to adjust a contact pressure of the drive wheel against the rail by moving the drive wheel to cause the first wheel and the second wheel to move farther away from or closer to each other. One of the first and second contact pressure adjusters is on one side of the drive wheel in a traveling direction of the traveling assembly, and the other of the first and second contact pressure adjusters is on the other side of the drive wheel in the traveling direction.