Extendable Boom Assembly for Overhead Rail Power Transfer
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Solution Overview
Problem
Existing mobile industrial machines face challenges with partial-electric or all-electric power systems due to infrastructure installation difficulties and the need for adaptable power transfer systems that accommodate route changes and uneven terrain, while existing solutions do not adequately facilitate maintenance or protect components.
Innovation Solution
A pivoting boom assembly for mobile machines that includes an extendable and retractable structure with compartments for hydraulic, pneumatic, and electrical components, allowing secure connection to an electrically-conducting rail system and facilitating maintenance by positioning components for optimal protection and accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If overhead electric rails are installed for all-electric power systems, then fuel costs and emissions are reduced, but infrastructure installation becomes difficult and impractical on uneven terrain and for route changes
Solution Approach 1:
The boom assembly is designed with extendable and retractable capabilities, allowing it to dynamically adjust its length and position. The boom can extend to reach overhead electric rails when needed and retract when not in use, enabling the machine to adapt to different routes and terrain conditions while maintaining access to electric power when available
Solution Approach 2:
The boom assembly serves multiple functions: it acts as a mechanical support structure, a conduit for hydraulic and pneumatic lines, a protective enclosure for components, and a means to connect to overhead electric rails. This multi-functionality allows a single system to address both power transmission and adaptability requirements
2Ease of repair
If components are exposed on the boom structure, then maintenance is simplified, but components are vulnerable to damage and environmental factors
Solution Approach 1:
The boom structure incorporates nested compartments and enclosures within the boom itself. Components such as hydraulic reservoirs, pneumatic tanks, and electrical equipment are housed within protected compartments formed by the boom's internal structure, providing both protection and organized placement while maintaining accessibility for maintenance
Solution Approach 2:
Different sections of the boom structure provide different levels of protection based on the specific requirements of the components they house. Critical components are enclosed in protected compartments, while other areas remain more accessible, allowing maintenance personnel to access components as needed while providing appropriate protection where required
3Power
If hydraulic and electrical components are placed on the boom, then power and actuation are provided, but components are exposed to vibration, debris, and environmental damage
Solution Approach 1:
Hydraulic and electrical components are nested within the internal compartments of the boom structure. The boom's walls and enclosures shield these components from external harmful factors such as vibration, debris, and environmental conditions while still allowing the components to perform their power delivery functions
Solution Approach 2:
The boom structure is designed with vibration-dampening features and protective enclosures that cushion components against vibration and impact before these harmful effects can cause damage. The structural design anticipates and mitigates the effects of vibration and debris exposure
Data Source
AI summary
In one aspect, a boom assembly for a mobile machine includes a front end and a rear end, and further includes an extendable and retractable boom. The boom includes a first end, a second end, a top wall extending from the first end to the second end, and a bottom wall extending from the first end and the second end, the bottom wall being opposed to the top wall, and a central wall. The central wall connects the top wall and the bottom wall so as to form a front compartment on one side of the central wall, and a rear compartment on a second side of the central wall, when the boom is in an extended position. A component of an actuator system is connected to the central wall and located within the rear compartment.