Telescopic Lifting Device for Waste Collection Trucks
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Solution Overview
Problem
Existing lifting devices for refuse collection containers are limited in their ability to lift multiple containers from a single position and cannot handle underfloor containers, requiring precise positioning and restricting their use due to a limited pivoting angle and radius of operation.
Innovation Solution
A lifting device with a telescopically extendable boom and a support system that allows for a larger pivoting angle, enabling the simultaneous lifting of multiple containers from a central position and accommodating underfloor containers, featuring a rotating platform, nested C-profiles, and a flexible hydraulic system for extended reach and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lifting device uses a fixed arm length and limited pivoting range, then the structure is simple and stable, but it cannot lift multiple containers from a single position and requires precise positioning
Solution Approach 1:
The boom is designed as a telescopic structure with nested tubes, allowing the arm length to be extended or retracted. This enables the lifting device to reach multiple containers positioned at different distances from the truck while maintaining a compact form when not in use, resolving the contradiction between versatility and structural simplicity
Solution Approach 2:
The lifting device incorporates a rotatable support that allows the boom to pivot horizontally over a larger angle range. This dynamic adjustment capability enables the device to accommodate containers at various positions without requiring precise truck positioning, while the rotation mechanism is designed to be space-efficient
2Adaptability or versatility
If the lifting device is positioned in the middle to access multiple containers, then versatility is improved, but the radius of operation is limited by the container length and load capacity
Solution Approach 1:
The telescopic boom allows the arm length to be adjusted dynamically. When lifting containers farther from the truck, the boom can be extended to increase reach while maintaining adequate load-bearing capacity through the nested tube design, effectively expanding the operational radius without compromising strength
3Adaptability or versatility
If the lifting device uses a rigid fixed structure, then stability is high, but it cannot handle underfloor containers and has limited pivoting angle
Solution Approach 1:
The support is designed to rotate horizontally, allowing the boom to pivot over a larger angle range and access containers at different positions including underfloor containers. The rotation mechanism incorporates proper bearing and locking systems to maintain structural stability during operation while enabling versatile positioning
4Measurement precision
If the truck must position precisely opposite each container, then lifting accuracy is improved, but time consumption increases due to repeated positioning
Solution Approach 1:
The rotatable support enables the boom to pivot horizontally over a larger angle range, allowing the truck to remain in a single position while the boom adjusts its angle to reach different containers. This dynamic positioning capability eliminates the need for repeated truck positioning, significantly reducing time consumption while maintaining the ability to precisely target each container
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 solution allows for efficient and time-saving collection of multiple containers from a single position, with enhanced stability and reach, enabling quick positioning and operation, including the ability to lift underfloor containers, significantly improving operational efficiency.
Implementation Method 1
Oil-hydraulic cylinders are provided to lift the I-guide rails
Implementation Method 2
The arm slides vertically in the I-guide rails and is moved by a gear chain drive
Implementation Method 3
The arm is guided on rollers in the I guide rails
Implementation Method 4
a base which is mounted on a swivel platform on a truck bed
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
The invention relates to a lifting device (1) on a heavy goods vehicle for lifting and emptying waste collecting bins with a jib (2) which can be extended telescopically. The jib (2) has a lifting tool (3) for coupling to a waste collecting bin. Furthermore a support (4) which can be extended and is mounted on a slewing platform (12) is provided for the jib, and has C-shaped sections (10, 11) which fit into one another and can be moved telescopically. The jib (2) is fastened so as to be vertically pivotable on the free end region of the support (4). Furthermore a lifting cylinder (25) is provided between the jib (2) and the support (4) in order to bring the jib to a specific pivot angle relative to the horizontal.