Adjustable Paving Machine with Expandable Frame
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Solution Overview
Problem
Traditional paving machines are limited in their ability to handle different forms of paving materials and have fixed or limited width adjustments, leading to inefficiencies and additional costs for users.
Innovation Solution
An adjustable paving machine with a variably expandable portion and actuator system that allows for lateral movement and width adjustment, enabling the machine to accommodate various paving materials and widths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional paving machines with fixed width are used, then the machine structure is simple, but the machine cannot accommodate different paving widths or asymmetric paving applications
Solution Approach 1:
The patent implements a movable frame that can be laterally shifted relative to the first frame portion, transforming the fixed-width machine into a dynamic, adjustable-width machine. The actuator system enables the movable frame to move between retracted and extended positions, allowing the machine to adapt to different paving widths and asymmetric paving applications while maintaining structural integrity through guided motion paths.
Solution Approach 2:
The machine is divided into a first frame portion and a movable frame portion that can be independently positioned. This segmentation allows the second plurality of walls to be laterally movable relative to the first plurality of walls, enabling width adjustment without requiring complete disassembly or complex restructuring of the entire machine frame.
2Adaptability or versatility
If multiple traditional paving machines are purchased for different applications, then each machine is optimized for its specific function, but the operational costs and maintenance requirements increase
Solution Approach 1:
The patent creates a universal paving machine that can perform multiple functions by adjusting the width of the movable frame. The machine can handle various paving materials (liquids, slurries, semi-liquids) and accommodate different paving widths and asymmetric paving applications, replacing the need for multiple specialized machines while maintaining operational efficiency through a single versatile platform.
Solution Approach 2:
The dynamic width adjustment capability allows a single machine to adapt to different paving applications on-the-fly, eliminating the need to switch between multiple fixed-width machines. The actuator system enables rapid reconfiguration of the machine width to match different job site requirements, improving productivity by reducing machine changes and setup time.
3Ease of operation
If traditional paving machines are deployed for edge paving, then the machine can reach the edge, but it applies paving material where it is not desired or damages the machine
Solution Approach 1:
The movable frame can be dynamically adjusted to reduce the machine width when performing edge paving operations. This allows the spreading elements to reach the edge of the roadway while the main body of the machine remains positioned on stable ground, preventing damage to the machine from contact with vegetation, rocks, or debris along the roadway edge.
4Adaptability or versatility
If the movable frame is made laterally movable to adjust width, then the machine can accommodate different paving widths, but the actuator system complexity increases
Solution Approach 1:
The patent employs an actuator system that may include rotary actuators (hydraulic motors, pneumatic motors, or electric motors) coupled with rotating guide members and linear actuators to translate rotational motion into lateral movement of the movable frame. This mechanical substitution approach provides controlled, precise width adjustment while managing system complexity through standardized actuator components and guided motion paths.
Data Source
AI summary
This disclosure relates to an adjustable paving machine. In some examples, the adjustable paving machine includes a variably expandable portion. The variably expandable portion may be expandable laterally such as to accommodate paving operations of variable widths. The adjustable paving machine may be configured to spread a variety of paving materials on a paving surface, including oils, emulsions, asphalt, slurries, or the like. The adjustable paving machine may include a containment basin operative to contain a paving material such as to reduce lateral or longitudinal movement of the paving material. The adjustable paving machine may include an adjustable shoe configured to move the paving machine vertically relative to the paving surface. The adjustable paving machine may include one or more spreading elements configured to spread the paving material on the paving surface. The spreading elements may be supported by a spreading element support enabling easy replacement of the spreading elements.