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Two linear magnetic external sensors outside the slewing cylinders.

IP.com Disclosure Number: IPCOM000231910D
Publication Date: 2013-Oct-14
Document File: 1 page(s) / 42K

Publishing Venue

The IP.com Prior Art Database

Abstract

One sensor can not read/measure the whole stroke of the slewing cylinder rotating the crane of a forest machine, like a forwarder. 2 sensors can do it with the right logics. Also 2 sensors have a longer combined measuring area so less sensor types are needed. A linear sensor is placed outside the slewing cylinder on the left side of the slewing unit and on the right side of it. She sensors' magnetic counterparts are inside the cylinder in both ends of the slewing rack or in the corresponding end pistons. The 2 sensors and magnets together cover the whole slewing angle with the right programming in the automation system. When the slewing rack travels into the pillar housing and is outside the reading area the other sensor on the other side continues reading the angle. Relevant devices are known from “Cranab” using a mechanical rotating potentiometer, from WO 2010/007357 A1 and from: http://www.rota-eng.com/innovation

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Two linear magnetic external sensors outside the slewing cylinders.

Abstract: One sensor can not read/measure the whole stroke of the slewing cylinder rotating the crane of a forest machine, like a forwarder. 2 sensors can do it with the right logics. Also 2 sensors have a longer combined measuring area so less sensor types are needed.

A linear sensor is placed outside the slewing cylinder on the left side of the slewing unit and on the right side of it. The sensors' magnetic counterparts are inside the cylinder in both ends of the slewing rack or in the corresponding end pistons. The 2 sensors and magnets together cover the whole slewing angle with the right programming in the automation system. When the slewing rack travels into the pillar housing and is outside the reading area the other sensor on the other side continues reading the angle.

Relevant devices are known from "Cranab" using a mechanical rotating potentiometer, from WO 2010/007357 A1 and from: http://www.rota-eng.com/innovation