App205 en measuring-jib_extension_on_mobile_cranes

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App205 en measuring-jib_extension_on_mobile_cranes

  1. 1. A205_eDraw wire sensorswireSENSOR Measuring Jib extension on mobile cranesMobile cranes often have to be pushed to their limits in Demands on the measuring system:different areas of application, including operating in con- - Measuring range up to 10mfined spaces. One safety issue here is the monitoring - Ambient temperature from -20°C to +80°Cof the load torque so that the crane can immediately be - Robust sensor designtaken out of operation if necessary, to prevent for example - Compact installation sizethe crane from falling over, which would have catastrophicconsequences. The load torque of the crane incorporates Suitable sensor seriesboth the weight of the load and the current extension - WPS-xxx-MK120length of the jib arm. From this value, the minimum sup- - WDS-xxx-P115port displacement with which the crane can operate safe-ly under existing general conditions can be calculated.Böcker Maschinenwerke GmbH in Germany determinesthe extension length using wireSENSOR P115 draw-wire sensors. For this particular application, the sensoris mounted parallel to the lower telescopic cylinder andmeasures its length. The length of the lower telescopiccylinder covers the entire extension length of the jib arm.This means that the measuring range required, as well asthe sensor installation size are kept as small as possible.Due to their compact installation size and flexible mount-ing options, the draw-wire sensors can easily be retrofit-ted. The cable is diverted via an additional roller so that nowater can enter the sensor from the cable.Micro-Epsilon A member of micro-epsilon groupKönigbacher Straße 15 Tel. 0 85 42/1 68-0 info@micro-epsilon.com Certified DIN EN ISO 9001 : 200094496 Ortenburg Fax 0 85 42/1 68 90 www.micro-epsilon.com Modifications reserved / 9781205-A011120FHF

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