SERVO DRIVE WITH REDUCER FOR CONTROL ELEMENT ADJUSTING FLOW OF GAS OR LIQUID Russian patent published in 2011 - IPC F16H35/00 F16K31/53 G05G5/04 

FIELD: machine building.

SUBSTANCE: by means of driven component (12) servo drive (16) with reducer (10) of preload actuates control element adjusting liquid or gas flow. Setting motion is limited with end stops (34). On the side of the case at least one internal end stop (34) limits freedom of rotation of one thrust wheel (32) contacting driven component (12) and geometrically locks it for more, than one complete turn. A switch device changing direction of driven component (12) motion has two cylinder wheel of one diametre driven to rotation in opposite directions with corresponding switching driving pinions which transfer in their axial directions. At any axial position the pinions engage driven component (12). One of both switching driving pinions can be fixed with one of two cylinder wheels of one diametre for transfer of torque.

EFFECT: improved design of internal end stops of servo drives of above described type.

19 cl, 13 dwg