Boom Hydraulic Conduit Routing Through Rotation Joints
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Solution Overview
Problem
In mining or construction vehicles, the conventional hydraulic hose arrangements are prone to rupture due to harsh environments and obstruct the operator's visibility, while also limiting the reach of the mining or construction device.
Innovation Solution
The arrangement of hydraulic conduits through rotation devices with swivel arrangements and telescopic sections within the boom, eliminating external hoses and allowing for angular movement to increase reach and reduce obstructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydraulic hoses are arranged externally along the movable arm, then the hydraulic device can be supplied with hydraulic fluid, but the hoses are exposed to harsh environment risking rupture and obstruct the operator's visibility
Solution Approach 1:
The patent extracts the hydraulic conduits from the external environment and integrates them inside the boom structure. The conduits are routed through the boom's internal cavity, removing them from exposure to harsh environmental conditions and eliminating their visibility-obstructing presence outside the vehicle.
Solution Approach 2:
The hydraulic conduits are nested within the boom's internal structure. The conduits are arranged inside the boom's hollow cross-section, utilizing the existing structural space rather than occupying external space, thereby protecting them while maintaining structural integrity.
2Length of moving object
If conventional hose arrangements are used, then hydraulic fluid can be supplied to the device, but the reach of the mining or construction device is limited by hose placement and rotation device limitations
Solution Approach 1:
The patent employs dynamic rotation devices with swivel arrangements that allow the hydraulic conduits to rotate and pivot along with the boom and mounting device. This dynamic capability enables the system to achieve greater reach and positioning flexibility without limiting the movement range of the mining or construction device.
Solution Approach 2:
The patent introduces angular movement capability through the second rotation device, which provides rotation around an axis arranged at an angle with respect to the first axis. This adds a dimensional aspect to the reach capability, allowing the device to access positions that would be unavailable with single-axis rotation only.
3Quantity of substance
If multiple hoses are provided for hydraulic fluid supply, then the hydraulic device can be fully supplied, but the number of hoses increases complexity and potential failure points
Solution Approach 1:
The patent merges multiple hydraulic conduits into a unified arrangement within the boom structure. Multiple conduits are routed together through the boom's internal cavity and connected to the rotation devices, consolidating what would otherwise be separate external hose arrangements into a single integrated system.
Data Source
AI summary
A mining or construction vehicle comprising a boom extending in a first direction, which boom, via a first and a second rotation device, is connected to a hydraulic device arranged on a mounting device arranged at a free end of said boom, the first rotation device being arranged to provide a rotation around a first axis that is substantially parallel to the first direction, and a second rotation device being arranged to provide a rotation around a second axis that is arranged at an angle with respect to the first axis. Hydraulic conduits for supply of hydraulic fluid to said hydraulic device on said mounting device are arranged through at least one of the first and second rotation devices.