GEAR SELECTION MECHANISM OF DISTRIBUTION GEARBOX Russian patent published in 2013 - IPC F15B11/12 

FIELD: automobile production.

SUBSTANCE: gear selection mechanism of distribution gearbox includes housing (1) made as an integral part of distribution gearbox casing cover plate. Cover plate (3) is fixed on housing (1). Pneumatic cylinder (5) is installed in housing (1), and its inner cavity is stepped. Casing (2) is provided with shank (6). Stock (7) is installed in guide openings of housing (1) and casing (2). Piston (10) of high gear, on which the second piston (11) of low gear is installed, is fixed on one end of stock (7). The other end of stock (7) is located in shank (6), in which spring-loaded fastener (12), stock neutral position sensor (14) and high gear sensor (15) are installed. Three grooves (16) are made in the stock for interaction with fastener (12), and cavities (17) and flattened surface (18) are made on stock (7) and required for operation of neutral position sensor (14) and high gear sensor (15). Threaded openings (19) and (22) for air supply to cavities (20) and (21) of pneumatic cylinder (5) are made in cover plate (3) and housing (1). Gear shifting fork (24) fixed on stock (7) by means of double split pin (25) is installed in central part of stock (7). An opening in shank (6) is closed with plug (26), and threaded opening (27) can be made on the end of stock (7).

EFFECT: improving reliability and durability of gear selection mechanism.

3 cl, 2 dwg