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Motor de arranque de auto... Messages in this topic - RSS

sigmaX
sigmaX
Posts: 92


20/10/2008
sigmaX
sigmaX
Posts: 92
En la revista de www.servomagazine.com de este mes, proponen usar un motor de arranque de auto:

Get A Starter Motor Runnin' In Your Robot
by Steven Schmitt

Auto starter motors are often overlooked for use in robot building. Typically, a starter motor can draw 50 to 150 amps with no load and over 1,000 amps under heavy load so they may appear to be difficult to use. Since nearly all are series wound (SW), they can be as good as or better than permanent magnet (PM) motors for powering combat robots. Plus, they are inexpensive and readily available.

The torque of an SW motor is proportional to the current squared whereas the torque of a PM motor is only proportional to the current. The torque and horsepower curves for the two different types of motors are shown in Figure 1. The torque vs. RPM curve for the PM motor is very linear and the peak horsepower occurs at the midpoint. The torque vs. RPM curve for the SW motor is very non-linear making the horsepower curve nearly flat over a large RPM range.

El artículo continúa, pero es solamente para los que pagan suscripción (este pedacito era gratis via web)... Se me ocurrió que el dato de usar un motor de estos, puede estar bueno... Alguien sabe cuanto sale un motor de arranque (ej: de Fiat uno, o VW GOL, bien baratito) de repuesto ?

SigmaX
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zeque44
zeque44
Posts: 6


01/11/2008
zeque44
zeque44
Posts: 6
Hola Sigma: los motores de auto se consiguen por un par de cientos de pesos en los desarmaderos o en las ferias. De que origen, ni te pongas a pensar. Si bien son superpotentes yo creo que son muy pesados (8 a 15 kilos)

Zeque
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