B - Operations – Transporting – 06 – B
Patent
B - Operations, Transporting
06
B
74/19
B06B 1/16 (2006.01)
Patent
CA 1059341
ABSTRACT OF THE DISCLOSURE An eccentric drive mechanism comprising at least one out-of-balance mass secured to a driven shaft and at least one ad- ditional mass adapted to rotate upon the shaft in relation to the out-of-balance mass, and to be locked to the shaft. In known sim- ilar eccentric drive mechanisms, while it is quite a simple matter to vary the operating frequency by altering the r.p.m. of the out- of-balance mass, no satisfactory way of altering the exciter force has been found, that is, of displacing the out-of-balance mass and the additional mass in relation to each other. Any adjustment of these two masses in relation to each other by means of drives such as planetary or helical drives greatly increases the cost and com- plexity of the mechanism. This invention provides an eccentric drive mechanism which is of rugged and reliable design, and which provides for simple and rapid adjustment of the additional mass in relation to the out-of-balance mass, for the purpose of adapting the mechanism to given operating conditions. This is achieved in that the shaft has an offset arranged eccentrically of a longitu- dinal axis (Mw) thereof. The additional mass is mounted rotatably upon the offset, the additional mass being connected to the shaft by at least one spring element acting in a peripheral direction. At least one locking means is provided, the at least one locking means adapted to be actuated while the shaft is rotating so as to produce a releasable connection, secured against rotation, between the said shaft and the additional mass.
266605
Carle Udo
Vural Gulertan
LandOfFree
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