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Automatic Control of Plunge Speed ​​Based on Cutting Depth

A technology of cutting depth and speed, applied in electric speed/acceleration control, roads, buildings, etc., can solve the problem of not providing

Active Publication Date: 2022-01-21
CATERPILLAR PAVING PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] While the system of the '063 patent may allow automatic and continuous control of the size profile of the decelerating vibration strip cut into the road surface, it does not provide control aspects for automatically setting the allowable dip speed or range of dip speeds to The permissible dip speed, or range of dip speeds, at which the milling drum can be lowered into the road surface to effectively and efficiently achieve a specific desired depth of cut while minimizing wear on the cutting tool and cold planer

Method used

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  • Automatic Control of Plunge Speed ​​Based on Cutting Depth
  • Automatic Control of Plunge Speed ​​Based on Cutting Depth
  • Automatic Control of Plunge Speed ​​Based on Cutting Depth

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Embodiment Construction

[0016] For the purposes of the present invention, the term "bitumen" is defined as a mixture of aggregate and asphalt cement. Asphalt cement is a brownish-black solid or semisolid mixture of bitumen obtained as a by-product of petroleum distillation. Asphalt cement can be heated and mixed with the aggregate used in paving the road surface, where the mixture hardens as it cools. A "cold milling machine" is defined as a machine used to remove layers of hardened asphalt from existing roads. The disclosed cold planer may also or alternatively be used to remove cement and other road surfaces, or to remove non-road surface material, such as in mining operations.

[0017] figure 1 A cold milling machine 10 is shown for performing road milling operations at a worksite. As part of the milling operation, cold milling machine 10 may mill a surface 17 of a roadway and transfer the milled material into a first of a plurality of haul vehicles ("haul vehicles") 16. In some cases, the sec...

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PUM

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Abstract

A system for automatically controlling the operation of a milling drum on a cold milling machine, the system comprising: an input device; a display device; a storage device configured to store a database of suggested dip speeds, with specific operating characteristics The rotating milling drum should be lowered into the pavement surface at a suggested dip rate to most effectively and efficiently break up and remove pavement material to achieve various depths of cut by the milling drum; and a processor, which communicates with the input device, display The device communicates with the storage device. The processor may be configured to: receive via the input device a signal indicative of a particular depth of cut desired by an operator of the cold milling machine; speeding down into the pavement surface to achieve a specific depth of cut; displaying on a display device at least one dip speed for the specific desired depth of cut; generating a command control signal indicative of the at least one determined dip speed; and directing the command control signal to communicated to an actuator configured to regulate the rate at which the milling drum is lowered into the pavement surface.

Description

technical field [0001] The present invention relates generally to a cold milling machine, and more particularly to a system and method for automatically controlling the plunge rate of a milling drum of a cold milling machine based on a desired depth of cut. Background technique [0002] Asphalt surface roads are built to facilitate traffic. Depending on the density of use, the condition of the subgrade, temperature changes, humidity levels, and / or age, the surface of the road can eventually become misshapen and unable to support wheel loads. To rehabilitate the road for continued traffic use, the disused asphalt was removed in preparation for paving again. [0003] Cold planers (sometimes called road mills or scarifiers) are used to break up and remove layers of asphalt roads. Cold planers typically include a frame propelled by a tracked or wheeled drive unit. The frame supports the engine, operator's console, milling drum, and conveyor. Through a suitable interface with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/12
CPCE01C23/088G05D13/62
Inventor J·A·德隆J·R·埃尔文
Owner CATERPILLAR PAVING PROD INC