Rotating Hood Asphalt Milling Attachment Depth Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing asphalt milling attachments face complexity and cost issues due to separate structures for depth control and bit access, often requiring the device to be lifted for bit changes and limiting access to the cutting head.
Innovation Solution
A unified system that integrates depth control and bit access using a rotating or transverse cover around the cutter head, allowing for simultaneous control of cutting depth and bit maintenance without additional lifting mechanisms, utilizing a skid foot or wheel for support and powered by the host vehicle or self-powered.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate structures are used for depth control and bit access, then both functions can be performed, but device complexity and cost increase
Solution Approach 1:
The patent combines the depth control function and bit access function into a single integrated structure. The hood serves dual purposes: it controls cutting depth when in the closed position and provides bit access when rotated to the open position. This eliminates the need for separate lifting mechanisms and reduces overall device complexity while maintaining both functional capabilities.
Solution Approach 2:
The hood is designed as a multi-functional component that performs both depth control and bit access operations. By making the hood rotatable, it can serve as a depth control barrier during cutting operations and simultaneously function as an access cover when needed, allowing one structure to fulfill multiple roles that previously required separate devices.
2Ease of repair
If the device is designed for bit access, then bits can be replaced, but access area is limited and conflicts with depth control
Solution Approach 1:
The hood is made rotatable rather than fixed, allowing it to dynamically change position between a closed configuration for depth control and an open configuration for bit access. This dynamic movement enables the hood to clear away from the cutting head, providing unrestricted access to all bits around the entire circumference of the cutting head, significantly increasing the accessible area compared to fixed designs.
3Ease of operation
If lifting mechanisms are added for bit access, then bits can be accessed, but device complexity increases
Solution Approach 1:
The rotating hood itself serves as the access mechanism without requiring external lifting equipment. By simply rotating the hood to the open position, the bits become automatically accessible, and the hood can even be used to support the cutting head weight during bit changes. This self-service approach eliminates the need for separate lifting mechanisms while maintaining ease of bit access.
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
This integration simplifies the device, increases bit access area, and reduces complexity and cost, enabling efficient cutting and maintenance operations for asphalt, concrete, and soil stabilization applications.
Implementation Method 1
The rotation of the cover can be controlled by a device that extends and retracts in a straight line. It could be electric, hydraulic or pneumatic.
Data Source
AI summary
A milling attachment device has a rotating hood and provides both cutting depth control and bit access by rotating the rotating hood. The rotating hood is rotated by an actuating mechanism such as an extending cylinder, a slew drive, or drive rings. The rotating hood may also have a skid foot and/or a wheel to assist in the depth control. The milling attachment device may be connected to a host vehicle so that it can be maneuvered into position for milling or maintenance.