Two fast belt drivings, especially for driving machine tool chief axis

摘要

There are two speed transmissions belt pulley (1) for the box of output shaft (2) bear. Main shaft (13) is equipped with the small driving belt of rotation installation with belt pulley (11). There is radially installed to carry out firmly connected main body to main tapping (19) in support lug (18) for axis (13) above it, the connector being moveably mounted (15). There is the large pulley of rotation installation and the coupling disc (21) of transmission belt (16) in polar bear flange (18). The movable coupling (15) has a cylindrical groove, wherein there is calculus (25) to connect the piston rod (28) that an activity fork (26) passes through nut (27) and cylinder (281). There are curtain (31) and suspension pin (312) for the main driving of the engine of the flange (8) of console (5), there are bearing fork (32) thereon, wherein pin (33) and band (34) are in bearing rotary idle pulley mounted thereto (35). Drive pulley, which is connected to, with the second band portion (10) and double speed belt drive pulley (1) with transmission belt (1) lesser pulley (11) in two speed transmissions belt pulley connect first band (9). IMAGE