Lenze DSD User Manual download pdf (Page 74)

100

101

7Applications

7.3 Belt drive, rotating

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

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7.3.2 Applications with a vertical direction of movement

For this model a tool is positioned by means of a toothed belt. A motor or geared motor with or with-

out a downstream speed-transforming gear actuates a toothed belt. The motor is fixedly connected

to the machine. A tool or payload m

is fastened to the toothed belt. The tool or payload is operated

via guide (coefficient of friction μ

Gdn

• The positioning process can be carried out via time-controlled path generators (positioning soft-

ware) or via path-controlled path generators (electronic cams).

• The movement is carried out within one of the three dimensional axes (horizontally x, y, and

vertically z), or within a plane inclined to the horizontal by the angle β (0 ... 90°).

• For Z axes often an omega arrangement of the belt is selected, because less operating space is

required.

• An omega arrangement of the belt according to the following schematic diagram with a

fixed motor is also taken into consideration by this DSD model:

Beating of the belt pulley

The toothed belt either is mounted directly to the motor shaft/gearbox shaft, or by means of a

transmission gear (internal bearing support):

• In the case of arrangement A the bearing of the motor or gearbox has to be checked separately

with regard to radial forces at the output end (see the following section). This function currently

is not contained in the DSD yet.

Arrangement A Arrangement B

 Belt  Belt



F 2·F

rad prl,Blt



rad

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