Removable Support Ring for Milling Drum Load
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Solution Overview
Problem
Milling machines face inefficiencies and reliability issues during the assembly and disassembly of cutting rotors with different widths or pitches, as existing solutions do not adequately address the need for quick and efficient rotor changeouts.
Innovation Solution
The implementation of a removable support ring positioned between the rotor shell and the spindle, which carries the radial load of the rotor shell, allowing for efficient assembly and disassembly of the cutting rotor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a cutting rotor is designed as a single integrated unit, then structural strength is improved, but serviceability and changeout time deteriorate
Solution Approach 1:
The cutting rotor is segmented into separate components: a rotor shell and a support ring. The support ring is detachably connected to the rotor shell, allowing the rotor shell to be removed and replaced without removing the support ring from the spindle. This segmentation enables quick changeout of different rotor shells while maintaining the structural integrity of the support ring that carries the radial load.
Solution Approach 2:
The support ring is extracted as a separate serviceable component from the integrated rotor assembly. The support ring remains installed on the spindle and carries the radial load, while the rotor shell can be independently removed and replaced. This extraction allows the load-carrying function to be separated from the cutting function, improving serviceability.
2Adaptability or versatility
If cutting rotors are frequently changed for different job requirements, then adaptability is improved, but assembly and disassembly reliability deteriorate
Solution Approach 1:
The rotor assembly is segmented into a permanent support ring and replaceable rotor shells. The support ring with its keyed connection to the spindle provides a reliable, consistent mounting interface that remains in place during frequent changes. Only the rotor shells are removed and replaced, ensuring that the critical load-carrying and positioning functions are performed by a reliable, non-serviceable component.
Solution Approach 2:
The support ring is pre-installed on the spindle with a keyed connection that establishes reliable positioning and load transfer before the rotor shell is attached. This preliminary installation of the support ring ensures that when rotor shells are frequently changed, the reliable mounting interface is already in place, eliminating assembly reliability issues during frequent changeouts.
Data Source
AI summary
A milling machine can include a frame, a milling assembly coupled to the frame, the milling assembly including a rotor housing and a cutting rotor, the cutting rotor including a rotor shell positioned around a spindle, and a removable support ring positioned on an inner surface of the rotor shell, wherein the support ring is positioned between the rotor shell and the spindle, wherein the support ring is separate from the rotor shell and carries a load of the rotor shell from the spindle.