North American Distributor of Pronello Dynamometers

Asynchronous AC motors, 1.500 rpm with different powers depending on the Dyno model. For waork at low and high speeds continuously, they can have an independent blower. They are always driver controlled.

Transmission:

With timing belts, in 2 stages on the transportable models, and 1 stage on the production models. This type of belts combined with the use of lineal ball bearings, put almost all the power at the Dyno shaft, allowing it to work at very low and high speeds with greater shock loads.

Frequencies and Velocities:

In their general configuration, the Dyno’s are running from 0.1hz up to 6.0hz. With these frequencies, the shaft speed can go from .04″/sec (1mm/sec) up to 74″/sec (1880mm/sec).

Force Sensing:

Z type load cell

Position and Velocity sensing:

Digital high precision encoder system

Moving transformation system:

Scotch yooke (describes a perfect sinusoidal function). The mechanism has a frictionless no backlash mechanic solution, really useful for short strokes. For the durability tests models, we have an improved version of the known crank mechanism. For the stroke change: A double eccentric system allow a fast and step less stroke change, from 0″ to the maxium. The software recognizes the new stroke automatically.

Data acquisition system:

Of exclusive development, works combined with a YASKAWA AC Drive, the system is totally commanded by software.

Software:

Developed in C++, with all the usual windows functions (file, edition…) resulting in a powerful but friendly software. It can handle several tests simultaneously with a practical show/ no show command and different curve colors and traces making the results comparisons a really easy job. 18 different types of graphics and chart type information are available. A pass/ no pass curve analyzer and a production module are other available functions.