Container-Handling Vehicle Lifting Shaft With Accessible Bands
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Solution Overview
Problem
Existing container-handling vehicles require complex lifting devices with multiple secondary shafts and sheaves for lifting bands, which are service-intensive, noisy, and occupy significant space, necessitating frequent manual adjustments and internal access for maintenance.
Innovation Solution
A container-handling vehicle with a simplified lifting device featuring a lifting shaft assembly and dual pairs of lifting bands, where one pair extends horizontally and the other vertically, minimizing parts and space usage, and incorporating adjustable lifting band connectors for easy maintenance without internal access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex lifting device with multiple secondary shafts and sheaves is used, then the lifting function is achieved, but the device occupies significant space and requires frequent manual adjustments
Solution Approach 1:
The patent removes the complex secondary shafts and sheaves from the lifting device, retaining only the essential lifting shaft and lifting bands. This extraction of unnecessary components directly reduces the space occupied by the lifting device while maintaining the core lifting function through the simplified configuration of a single lifting shaft with horizontally and vertically extending lifting bands.
Solution Approach 2:
The lifting device is segmented into distinct functional components: a lifting shaft with a first pair of lifting bands extending horizontally and a second pair extending vertically. This segmentation allows each component to perform its specific function independently, reducing overall complexity and space requirements while maintaining reliable lifting operation.
2Reliability
If a complex lifting device with multiple secondary shafts and sheaves is used, then the lifting function is achieved, but the device is service-intensive and noisy
Solution Approach 1:
By removing the secondary shafts and sheaves from the system, the patent eliminates the sources of noise generated by multiple moving parts and the service intensity required to maintain them. The simplified lifting device with only essential components reduces mechanical complexity, thereby reducing noise and maintenance requirements while preserving the lifting function.
Solution Approach 2:
The simplified lifting device requires minimal maintenance and can be adjusted without requiring disassembly or internal access. The lifting bands can be directly accessed and adjusted on the lifting shaft, enabling operators to perform maintenance tasks quickly and easily without specialized service intervention, thus reducing service intensity.
3Reliability
If traditional lifting devices are used, then lifting is achieved, but internal access is required for maintenance
Solution Approach 1:
The lifting device is segmented such that the lifting bands are externally accessible from the lifting shaft. The first pair of lifting bands extends horizontally and the second pair extends vertically, allowing maintenance personnel to access and adjust these components from the outside without requiring internal access to the vehicle body, thereby significantly improving ease of repair.
Solution Approach 2:
The lifting bands are configured to be easily accessible and adjustable by operators without requiring specialized service intervention or internal access. This design enables routine maintenance to be performed quickly and easily, reducing dependency on complex service procedures and internal vehicle access.
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
The solution reduces noise, minimizes space occupation, and facilitates easy maintenance by eliminating the need for internal access, enhancing operational efficiency and reducing service intensity.
Implementation Method 1
a first pair of lifting bands and a second pair of lifting bands connecting the lifting shaft to the lifting frame
Data Source
AI summary
A container-handling vehicle includes a lifting shaft having first and second end sections, a motor for rotating the lifting shaft, a lifting frame for releasably connecting to a storage container, and a first pair of lifting bands and a second pair of lifting bands connecting the lifting shaft to the lifting frame. Each lifting band has a first end connected to the lifting shaft and a second end connected to the lifting frame. Each pair of lifting bands has a first lifting band connected at the first end section of the lifting shaft and a second lifting band connected at the second end section of the lifting shaft. The first pair of lifting bands extends in a substantially horizontal direction from the lifting shaft towards a band guiding assembly arranged to change the direction of the first pair of lifting bands to extend in a vertical direction. The second pair of lifting bands extends in a vertical direction from the lifting shaft at the side of the lifting shaft facing away from the band guiding assembly.