Clutches with wedging balls or rollers or with other wedgeable separate clutching members (F16D15)

Two-mode coupling // 2610756
FIELD: mechanical engineering.SUBSTANCE: invention is relevant to mechanical engineering, and more specifically to clutch couplings of kinematic mechanisms. Two-mode coupling includes frequency-dependent device (FDD) for switching and safety devices that include internal and external fixtures, separator and rolling elements. Internal fixture (1) is provided with slots (12); each of them includes tangentially located surface and groove made on this surface (13). External fixture (2) includes counter-bore (1). Rolling elements (4) are placed one-by-one in each groove (13). Separator (3) is manufactured in such form, when rolling elements (4) protrude in direction of radial periphery of internal fixture (1). Internal fixture (1) can be manufactured as one that is stationary connected to driving link of switched mechanism, and external fixture (2) can be manufactured as one that is connected to driven link of switched mechanism. FDD is formed by force of wedge-like cavities of coupling, separator 3, as well as rolling elements 4, which are placed within interval between grooves 13 of slots 12 and radial surface of counter-bore 10 of external fixture 2. Coupling fixture manufactured as suitable one for axial movement forms safety device.EFFECT: opportunity of transmission of increased torques is achieved.4 cl, 3 dwg
Reduction gearbox // 2582747
FIELD: machine building.SUBSTANCE: invention relates to machine building, particularly to step-down reducers. Step-down reduction gear includes high-speed and low-speed shafts and cams, aligned with each other in pairs opposite their eccentricities and rigidly planted on high-speed shaft. Cams are introduced in interaction with low-speed shaft through double-arm levers pivotally mounted in housing. Drive arms of said levers have slots surrounding each of paired eccentrics, and driven arms are introduced in interaction with low-speed shaft by intermediate links.EFFECT: enhancing of functionality is achieved.6 cl, 5 dwg

Controlled coupling // 2551048
FIELD: machine building.SUBSTANCE: invention relates to machine building, in particular, to device of torque transfer. The controlled coupling contains barrel-type body, its top cover has installed half-coupling containing disc with cavities and shaft. In the bottom cover the driven half-coupling is installed, it contains cone sleeve and shaft with flange. In the sleeve a flexible membrane is installed, its top part at the sleeve end face is pressed by the cross-arm located under the disc with round clearance C. On the sleeve bottom there are holes covered by discs build in bottom of the membrane. Balls in the membrane fill it till cross-arm. To the left of the casing the branch pipe with valve is installed, it is pneumatically connected with the compressed air system, and to the right of the casing there is branch pipe with valve connected to atmosphere.EFFECT: reliability of torque adjustment.2 dwg

Antitheft device for locking vehicle rotary shaft // 2461475
FIELD: transport.SUBSTANCE: invention relates to security systems and may be used for locking automotive steering controls. Proposed device is made up of metal case with iner chamber. Said chamber is shaped to wedge-like surface to receive locking element composed of metal roller or ball. Said surface and said locking element are coupled with their drive to provided for friction interaction so that shaft is locked in turning it by unauthorised user.EFFECT: antitheft device.3 cl, 2 dwg

Centrifugal clutch // 2349807
FIELD: engines and pumps.SUBSTANCE: centrifugal clutch comprises flywheel, driving shaft, gear box, centrifugal weights and jacket. Crankshaft has splines, on which drive half-coupling is movably installed as flywheel with gearing elements. Slave half-coupling is fixed on gearbox shaft, and this half-coupling comprises coupling cavities equipped with rolling paths, configuration of which has shape of joined cone tops, and gearing elements of slave half-coupling may move along these tops. Drive half-coupling is connected to crankshaft with the possibility of centrifugal control of automatic engagement and disengagement of half-couplings. Slave half-coupling may move in splines and is spring-loaded by elastic element depending on high sensitivity of unit to overloading processes.EFFECT: possibility of automatic engagement and disengagement of half-couplings and higher operational reliability of centrifugal clutch.2 cl, 3 dwg