Detachable Hydraulic Power Unit for Construction Machine Transport
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Solution Overview
Problem
Existing construction machines face challenges in diverting their hydraulic power units for additional purposes beyond primary operations, as conventional techniques fail to efficiently separate and repurpose components, leading to increased size, weight, and financial burdens during transportation and storage.
Innovation Solution
A construction machine design featuring a dual power unit system where the upper slewing body includes a first and second power unit, each comprising an engine, hydraulic pump, fuel tank, and controller, with the second power unit being detachable and adaptable for different purposes, allowing for flexible utilization and reduced size and weight during transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If all engines are installed to one frame as a single hydraulic power unit, then the power unit can be used for primary operations, but the power unit becomes large in size and cannot be diverted to additional purposes
Solution Approach 1:
The hydraulic power unit is segmented into multiple independent power units, each with its own engine, hydraulic pump, fuel tank, and hydraulic oil tank. Each power unit can be independently attached to or detached from the slewing frame, allowing selective diversion of individual power units to additional purposes without affecting the overall system size when all components are kept together as one integrated unit.
Solution Approach 2:
Each power unit is designed with universal functionality to perform both primary operations when attached to the slewing frame and additional purposes when detached. The standardized configuration of each power unit (engine, hydraulic pump, fuel tank, hydraulic oil tank) enables it to be universally applied to different functions, whether for main construction operations or auxiliary tasks during assembly/disassembly.
2Ease of operation
If a single large hydraulic power unit is formed with all engines, then primary operations can be performed, but transportation requires special trailers and occupies more space
Solution Approach 1:
The hydraulic power unit is divided into multiple smaller, independently transportable power units. Each power unit has its own support member that can be independently attached to or detached from the slewing frame, allowing them to be transported separately using standard transportation equipment rather than requiring special trailers for a large integrated unit.
Solution Approach 2:
The configuration of the power units is made dynamic through detachable support members that can be attached to or detached from the slewing frame. This allows the power units to be easily reconfigured for transportation by detaching them from the slewing frame, reducing the overall mass that needs to be moved and improving flexibility in utilization for different operational scenarios.
3Ease of manufacture
If frames are kept in separated state, then individual components can be accessed, but the engine, hydraulic pump, fuel tank and hydraulic oil tank cannot operate as one device
Solution Approach 1:
The hydraulic power unit is segmented into modular components (engine, hydraulic pump, fuel tank, hydraulic oil tank) that are individually accessible when the support member is detached from the slewing frame. This segmentation allows easy access to each component for maintenance and repair while maintaining the ability to function as an integrated unit when attached.
Solution Approach 2:
The individual components (engine, hydraulic pump, fuel tank, hydraulic oil tank) are merged into a single integrated power unit through the support member structure. When the support member is attached to the slewing frame, all components are combined and can operate together as one complete hydraulic power unit, ensuring operational integrity while still allowing individual access when detached.
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
Enables the diversion of the second power unit for additional purposes, reducing the need for additional hydraulic power units, minimizing financial and logistical burdens, and enhancing operational flexibility while maintaining the capability to drive the construction machine independently.
Implementation Method 1
a first hydraulic pump configured to be driven by the first engine to thereby suck hydraulic oil from the first hydraulic oil tank and discharge the hydraulic oil toward the hydraulic actuator
Data Source
AI summary
Provided is a construction machine, wherein an upper slewing body comprises a slewing frame and first and second power units, and wherein the second power unit comprises a second engine, a second controller to control driving of the second engine, a second hydraulic oil tank, a second hydraulic pump configured to be driven by the second engine to thereby suck hydraulic oil from the second hydraulic oil tank and discharge the hydraulic oil toward a hydraulic actuator, a second fuel tank configured to store fuel, and a second support member supporting the second engine, the second hydraulic oil tank, the second hydraulic pump and the second fuel tank, and wherein the second support member is configured to be attachable and detachable with respect to the slewing frame independently of a first support member of the first power unit, and the second hydraulic pump is detachably connected to the hydraulic actuator.