Electric Crane Cooling Layout With Parallel Distributed Coolers
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Solution Overview
Problem
There is a demand for cranes that can travel using electric power, driven by environmental considerations and the need for reduced emissions.
Innovation Solution
A crane design that includes a traveling vehicle body powered by a motor driven by a power supply unit, along with a first cooling system comprising multiple cooling devices dispersedly arranged on the vehicle body, connected in parallel, and configured to cool a fluid flowing through a circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional crane with a fixed boom and jib configuration is used, then the structure is simple and easy to manufacture, but the crane cannot adapt to different working conditions and has limited versatility
Solution Approach 1:
The patent implements a telescopic boom with multiple sections that can extend and retract, and a jib that can be adjusted in length and angle. This dynamic configuration allows the crane to adapt its working radius and lifting capacity to different operational requirements, transforming a static structure into a flexible, multi-functional system
Solution Approach 2:
The boom is divided into multiple telescopic sections that can be independently extended or retracted, allowing the crane to achieve various boom lengths. The jib is also segmented into adjustable sections, enabling flexible configuration to suit different working conditions while maintaining structural integrity
2Length of moving object
If the boom and jib are extended to increase working radius, then the crane can reach farther objects, but the structural stability and rigidity decrease
Solution Approach 1:
The patent incorporates a counterweight at the rear of the crane that can be adjusted in position and magnitude. This counterweight compensates for the increased moment arm when the boom and jib are extended, maintaining rotational stability and preventing tip-over while enabling the crane to reach farther objects
Solution Approach 2:
The hydraulic support legs can dynamically adjust their extension length and positioning to provide additional stability when the boom is extended. The system continuously adapts the support configuration based on the current boom extension state, maintaining structural stability across varying working radii
3Force
If hydraulic support legs are extended to increase lifting capacity, then the crane can handle heavier loads, but the risk of buckling and structural failure increases
Solution Approach 1:
The hydraulic support legs can dynamically adjust their extension length and positioning in response to varying load conditions. When heavier loads are detected or anticipated, the system extends the support legs to increase the base area and reduce the moment arm, thereby maintaining structural reliability while enabling higher lifting capacity
Solution Approach 2:
The crane system monitors operational parameters and preemptively adjusts the hydraulic support leg configuration before heavy loads are applied. This prevents structural overload and buckling by ensuring the support structure is properly configured in advance, enhancing reliability while maintaining lifting capacity
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 design enables cranes to travel efficiently using electric power, while the cooling system effectively manages the temperature of critical components, enhancing overall performance and reliability.
Implementation Method 1
a first cooling system that cools a lower electric device, in which the first cooling system includes a plurality of cooling devices dispersedly arranged on the traveling vehicle body, connected in parallel to each other, and configured to cool a fluid flowing through a circuit of the first cooling system
Data Source
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AI summary
This crane comprises a traveling vehicle body that travels through use of a motor driven by a power supply unit, and a first cooling system for cooling the motor, the first cooling system having a plurality of cooling devices that are distributed in the traveling vehicle body and connected in parallel with each other, and that cool a fluid that flows through a circuit of the first cooling system.