Refuse Vehicle Lifting System Segmentation
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Solution Overview
Problem
Existing refuse collection vehicle lifting systems require complex and expensive synchronization of lifting yokes to manage both main and insert bins, leading to inefficiencies and increased costs.
Innovation Solution
A lifting system comprising a first lift device and a second lift device, where the first lift member serves as the base for the second lift device, allowing both to be raised and lowered together as one unit, eliminating the need for synchronization and enabling continuous, time-efficient lifting motions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single lifting system with synchronized lifting yokes is used to manage both main and insert bins, then the system can lift both bins, but the system becomes complex and expensive due to synchronization requirements
Solution Approach 1:
The lifting system is divided into two independent lifting devices: a first lifting device for the main bin and a second lifting device for the insert bin. Each device has its own lifting yoke, mechanism, and control system, eliminating the need for complex synchronization between them while maintaining the ability to lift both bins simultaneously or independently.
Solution Approach 2:
A coupling device is introduced as an intermediary component that mechanically connects the first and second lifting devices. This coupling device includes a bar with a first end connected to the first lifting yoke and a second end connected to the second lifting yoke, allowing coordinated movement while maintaining operational independence of each lifting device.
2Adaptability or versatility
If synchronized lifting yokes are used to engage the insert in the main bin, then both bins can be lifted together, but the lifting process becomes inefficient due to synchronization constraints
Solution Approach 1:
The lifting system allows dynamic operation where the first and second lifting devices can operate independently or in coordination based on the specific task requirements. The coupling device can be positioned in different configurations to accommodate various lifting scenarios, enabling the system to adapt its degree of synchronization rather than being constrained to fixed synchronized operation.
Solution Approach 2:
Each lifting device is designed to be multi-functional: the first lifting device can lift the main bin alone, the second lifting device can lift the insert bin alone, or they can work together when the insert bin needs to be lifted from within the main bin. This universality eliminates the need for synchronization constraints while maintaining the ability to perform all required lifting operations.
3Ease of operation
If multiple jack devices are used to lift both bins independently, then lifting flexibility is improved, but the system complexity and cost increase
Solution Approach 1:
The first and second lifting devices share common components including the coupling device with its bar connecting both lifting yokes, and can utilize shared structural elements of the lifting system. This merging approach provides the flexibility of independent lifting operations while reducing the total number of discrete jack devices and components compared to completely separate lifting systems.
Data Source
Figure 1A~1C
Figure 2A~2B
Figure 3A~3B
AI summary
The invention relates to a lifting system (100) for a refuse collection vehicle, having a first and second lift device. The first lift device (10) comprises: a first lift member (12), a first lift base (11), a first lift mechanism (13) for raising and lowering the first lift member with respect to the first lift base, and a first gripper (14) configured to carry a main refuse bin (200). The second lift device (20) comprises: a second lift base (21), a second gripper (24) configured to carry an insert refuse bin (250), and a second lift mechanism (23) configured for raising and lowering the second gripper with respect to the second lift base. The first lift member is the second lift base of the second lift device which is configured such that the first lift member and second lift device are raised and lowered together as one unit when the first lift member is raised respectively lowered by the first lift mechanism.