Lenze DSD Bedienungsanleitung PDF herunterladen (Seite 72)

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7Applications

7.3 Belt drive, rotating

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23

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7.3 Belt drive, rotating

The vast majority of positioning systems require linear movements. If a rotating drive is used, the

rotation of the motor has to be converted into a linear movement. The speeds that can be achieved,

and therefore the dynamics of the positioning process and the repeat accuracy, and thus the quality

of the positioning process to a great extent are defined by the mechanics.

Characteristics of a rotating belt drive

• A motor actuates a belt pulley which in turn actuates a toothed belt. The mass to be moved,

which usually consists of a tool and the payload, is fastened to the toothed belt.

• Toothed belts allow for a higher speed, but a lower positioning accuracy of approx. 0.1 mm. The

positioning path is greater than that for the spindle, but it also is limited.

• Toothed belt drives are very often used in applications for material handling , since they offer a

high speed and an accuracy sufficient for this application.

Requirements with regard to a drive system for positioning

• High dynamic performance to achieve short positioning times

• High accuracy, according to the application

• High degree of reliability

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