Lenze DSD Uživatelský manuál stáhnout pdf (Strana 335)

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101

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23 335

11 Drive Dimensioning

11.4 Lenze gearbox selection

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Alternating load or pulsating load?

According to the intensity of the periodically occurring alternating load, the alternating load

factor k

alt

is in the range of 1 ... 1.4.

• In the case of a symmetrical alternating load M

alt,out

max,out

, the alternating load

factor k

alt

is 1.4.

• An alternating load without sign reversal (no torque reversal) is a pulsating load. The alternat-

ing load factor for pulsating loads is k

alt

=1.

[11-12] Different torque characteristics at the output end of the gearbox

•Pulsating load

• The torque alternates between two values without sign re-

versal

• Alternating load factor k

alt

= 1

•Pulsating load

• The torque changes from 0 to the max. value without sign

reversal

• Alternating load factor k

alt

= 1

•Alternating load

• Torque reversal with sign reversal

• Alternating load factor k

alt

> 1 (here approx. 1.13)

out

max,out

alt,out

out

max,out

out

max,out

alt,out

1 2 ... 330 331 332 333 334 335 336 337 338 339 340 ... 495 496

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