Distributed Hydraulic Layout for Aerial Work Platform Response
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Solution Overview
Problem
Existing aerial work platforms with centralized hydraulic systems suffer from large pressure loss and slow actuator response due to long oil supply pipelines, especially for platforms with long booms, leading to increased energy consumption and reduced responsiveness.
Innovation Solution
Implement a distributed hydraulic system with independent first and second hydraulic systems on the turntable and work platform, respectively, each with their own electric pump sets and control valves, eliminating long-distance oil supply pipelines and enabling localized actuator control through electrical connections and communication networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a centralized hydraulic system with long oil supply pipelines is used, then the hydraulic source can be centrally provided, but the pressure loss of hydraulic oil increases and actuator response becomes slow
Solution Approach 1:
The patent divides the centralized hydraulic system into multiple distributed hydraulic systems. Each hydraulic system includes its own hydraulic source, control valves, and actuators located at specific positions. This segmentation eliminates long oil supply pipelines by providing hydraulic power locally at each work position, thereby reducing pressure loss and improving actuator response speed.
2Device complexity
If a centralized hydraulic system with long oil supply pipelines is used, then the hydraulic source can be centrally provided, but the actuator response becomes slow
Solution Approach 1:
The patent divides the centralized hydraulic system into multiple distributed hydraulic systems. Each hydraulic system includes its own hydraulic source, control valves, and actuators located at specific positions. This segmentation eliminates long oil supply pipelines by providing hydraulic power locally at each work position, thereby reducing pressure loss and improving actuator response speed.
3Length of stationary object
If long oil supply pipelines are used for hydraulic transmission, then the hydraulic source can reach distant actuators, but system energy consumption increases
Solution Approach 1:
The patent divides the centralized hydraulic system into multiple distributed hydraulic systems. Each hydraulic system includes its own hydraulic source, control valves, and actuators located at specific positions. This segmentation eliminates long oil supply pipelines by providing hydraulic power locally at each work position, thereby reducing pressure loss and improving actuator response speed.
Solution Approach 2:
The patent replaces the traditional mechanical hydraulic transmission system with an electric-hydraulic integrated system. Each distributed hydraulic system uses an electric pump to generate hydraulic power locally, substituting the need for long mechanical hydraulic pipelines. This substitution reduces energy loss in the hydraulic transmission and lowers overall system energy consumption.
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 pressure loss, improves actuator responsiveness, and decreases energy consumption by shortening oil supply pipelines, while allowing for precise energy transfer and control, reducing production costs and facilitating troubleshooting.
Implementation Method 1
the first electric pump set supplies oil to the first control valve; the second electric pump set supplies oil to the second control valve
Data Source
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AI summary
Provided is an aerial work platform, including a first hydraulic system, a second hydraulic system, a power supply module, and a control module. The first hydraulic system includes a turntable actuator on a turntable, a boom actuator on a boom, and a first control valve and a first electric pump set both on the turntable, where the actuators are controlled by the first control valve that is supplied by the first electric pump set. The second hydraulic system includes a platform actuator on a work platform, a fly jib actuator on a fly jib, and a second control valve and a second electric pump set both on the work platform, where the actuators are controlled by a second control valve that is supplied by the second electric pump set. This design addresses the long oil supply pipeline in centralized hydraulic systems, reducing energy consumption and improving end actuator responsiveness.