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Cutting height adjustment on an agricultural machine based on impact detection on the cutter bar by vibration detection

IP.com Disclosure Number: IPCOM000236090D
Publication Date: 2014-Apr-04
Document File: 1 page(s) / 3K

Publishing Venue

The IP.com Prior Art Database

Abstract

In order to provide an automatic adjustment of the cutting height of an agricultural cutting machine, like a mower or any other implement or self-propelled vehicle equipped with a cutting attachment based on rotary disks (or rotary feeders), it is proposed that at least one or more vibration sensors are soundly mounted on the drums or directly on the cutter bar of said machine to detect vibration levels and impact shocks. Alternatively the sensors can be placed on the rotary feeders.

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Cutting height adjustment on an agricultural machine based on impact detection on the cutter bar by vibration detection

The following is based on developments for optimizing a cutter bar life time or knives life time on an agricultural mower and helps to detect drive train wear. This will allow users to do predictive maintenance on their machines.

In order to provide an automatic adjustment of the cutting height of an agricultural cutting machine, like a mower or any other implement or self-propelled vehicle equipped with a cutting attachment based on rotary disks (or rotary feeders), it is proposed that at least one or more vibration sensors are soundly mounted on the drums or directly on the cutter bar of said machine to detect vibration levels and impact shocks. Alternatively the sensors can be placed on the rotary feeders.

The sensors, particularly vibration sensors or acceleration sensors, are able to detect obstacle contacts, strokes or other impact shocks on the cutter bar. If too many shocks are detected or the level of shocks is too high this means that the cutting height is too low or the field is very stony.

A controller on the machine will process sensor feedbacks and adjust the cutting height accordingly to reduce said impact shocks. A vibration level analysis can also give some information about the drive train health and also if a knife or more has been lost.