Ground Milling Machine Transfer Chute Gap Bridging
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Solution Overview
Problem
Existing ground milling machines face issues with material loss and inefficient transfer of milled material between conveyors due to changing milling depths, resulting in gaps that allow material to fall through the intermediate space, posing safety risks and increasing secondary operations.
Innovation Solution
A material transfer apparatus with a transfer chute that extends obliquely from the transfer conveyor to the loading conveyor, acting as an extension of the transfer conveyor, and is designed to bridge at least 50% of the gap between the two conveyors, ensuring controlled material transfer and minimizing the formation of gaps, even with positional adjustments for varying milling depths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the transfer conveyor is adjusted to different positions for varying milling depths, then the conveying apparatus can adapt to different operating conditions, but gaps form between the transfer conveyor and loading conveyor allowing material to fall through
Solution Approach 1:
A material transfer apparatus acts as an intermediary component between the transfer conveyor and loading conveyor. This apparatus includes a receiving hopper that collects material discharged from the transfer conveyor and a transfer chute that guides material onto the loading conveyor, preventing material from falling through the gap while maintaining adaptability to different milling depths
Solution Approach 2:
The material transfer apparatus is divided into functional segments: a receiving hopper for collecting material, a transfer chute for guiding material, and a loading conveyor for transporting material. This segmentation allows each component to be optimized for its specific function while working together to prevent material loss
2Productivity
If conveyors are arranged to ascend in the conveying direction, then material can be transported efficiently from the milling drum box to the discharge point, but material loss occurs in the intermediate space between conveyors
Solution Approach 1:
The material transfer apparatus serves as a mediator between the ascending transfer conveyor and loading conveyor, capturing material that would otherwise fall through the intermediate space and redirecting it onto the loading conveyor, thus maintaining conveying efficiency while preventing material loss
3Loss of substance
If a material transfer apparatus is added to bridge the intermediate space, then material loss is prevented, but device complexity increases
Solution Approach 1:
The material transfer apparatus is integrated with the existing conveying system by positioning the receiving hopper on the loading conveyor and coordinating the operation of the transfer chute with the conveyors. This merging approach prevents material loss while minimizing the addition of independent complex components
Data Source
AI summary
A ground milling machine, comprising a machine frame, an operator platform, a drive engine, travelling apparatuses, a milling unit, a conveying apparatus for transporting milled material from the milling unit to a discharge point with a transfer conveyor and a downstream loading conveyor, and with a material transfer apparatus arranged in a material transfer region between transfer conveyor and loading conveyor, which material transfer apparatus is configured so as to direct milled material from the transfer conveyor to the loading conveyor, the transfer conveyor and the loading conveyor each comprising a support frame, wherein the material transfer apparatus comprises a milled-material-directing transfer chute, wherein the transfer chute has a chute guide surface extending at least partially in a horizontal direction and running in an at least partially descending manner from the transfer conveyor to the loading conveyor, and wherein the transfer chute is arranged at least partially immovably with respect to the transfer conveyor, and a method of conveying milled material by means of a conveying apparatus of a ground milling machine comprising a material transfer device with a transfer chute.