Telescoping Boom Assembly for Vacuum Hose Sag Prevention
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Solution Overview
Problem
Existing boom assemblies for excavation vehicles do not effectively support vacuum hoses in various positions, leading to hose sagging and debris accumulation, which can cause plugging during excavation processes.
Innovation Solution
A boom assembly with three or more telescoping support members and a single actuator that allows for extended reach while maintaining hose support, reducing sagging and debris accumulation by using telescoping members to extend and retract the hose, and incorporating rollers and intermediate supports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a boom assembly uses traditional support structure, then it can support vacuum hose, but the hose sags and debris accumulates causing plugging
Solution Approach 1:
The boom assembly is divided into multiple telescoping segments (first boom segment, second boom segment, third boom segment) that can extend and retract independently. This segmentation allows the boom to maintain proper hose support geometry while accommodating extended reach, preventing sagging and debris accumulation by keeping the hose elevated throughout its length.
Solution Approach 2:
The boom assembly incorporates dynamic telescoping movement capability through actuators that extend and retract the boom segments. This dynamic adjustment allows the boom to adapt its length and position to maintain optimal hose support in various operational configurations, preventing harmful sagging while supporting the hose in extended positions.
2Length of moving object
If boom assembly extends reach, then it can access farther areas, but hose sagging increases causing plugging
Solution Approach 1:
The boom segments are configured in a nested telescoping arrangement where the second boom segment extends from the first, and the third extends from the second. This nested structure enables extended reach while maintaining structural integrity and proper hose support geometry, preventing sagging even when the boom is fully extended to maximum length.
Solution Approach 2:
The boom assembly uses vertical telescoping extension to achieve extended reach in the horizontal direction. By extending the boom segments vertically through telescoping motion, the system achieves greater horizontal reach while maintaining the hose at an elevated position, preventing sagging that would occur with traditional horizontal extension methods.
3Volume of moving object
If boom assembly is collapsible, then it can be stored compactly, but hose support stability decreases
Solution Approach 1:
The boom assembly transitions between dynamic telescoped states (extended for operation, collapsed for storage) while maintaining stable hose support in the operational state. The telescoping segments with actuators provide controlled movement and stable positioning, ensuring hose support stability during excavation operations while enabling compact collapse for storage when not in use.
Solution Approach 2:
The segmented telescoping structure allows the boom to collapse into a compact configuration by retracting the second and third segments into the first and second segments respectively. This segmentation enables compact storage volume while maintaining the ability to extend and provide stable hose support when deployed for excavation operations.
Data Source
AI summary
A boom assembly for an excavation vehicle includes a bracket configured to couple to a turret that is rotatably mounted to a debris body. Three or more telescoping support members. A first support member of the three or more telescoping support members is pivotably coupled to the bracket, a second support member of the three or more telescoping support members supports a shoe at a distal end, and a third support member of the three or more telescoping support members is disposed at least partially between the first support member and the second support member. The boom assembly also includes a single actuator. One end of the actuator is coupled to the first support member and the other end of the actuator is coupled to the second support member. The actuator is configured to extend and retract the second support member relative to the first support member.