Machine Parts

Wherever possible to all shafts of the drive, standard speeds should be assigned. Designing the layout of mechanical drive: The basic speed changing unit is a two shaft where one is driving and another is driven in the drive system. For a constant speed of the input shaft different transmission ratio between the input shaft and the output shaft can be engagged so that required   speeds of the output shaft speeds of the output shaft are produced. The motion and the torque can be transmitted through belts, coupling and gears. Advantage of Couple Pulley Drive: 1.       Simple in Design. 2.       Low investment. 3.       Noiseless and smooth running which is particularly useful in finishing operations. 4.       High mechanical efficiency due to less frictional loss. 5.       Rubberized belt drives can absorb shocks d...

A single pulley all gear spindle drive system is preferred to a cone pulley drive. The advantages are in contary to the increasing cost. 1.       A high power transmission because of high speed belt drive. 2.       Quick speed change through levers, Speed changing takes partically no time, if pre-selector system is designed.  3.       Possibility of individual drives, which avoid weaker counter shaft. 4.       Belt life is enhanced, because it is not shifted. 5.       Compact and thus saves space. Requires less floor spoace. Thus such a gear system can be housed in the headstock of a machine, where the motor can be placed at the bottom.                          The Advantage of Cone Pulle...

Advantages of cone pulley drive given bellow them: 1.        Simple in design. 2.        Low investment. 3.        Noiseless and smooth running which is particularly useful in finishing operations. 4.        High mechanical efficiency due to less friction loss. 5.        Rubberized belt drives can absorb shocks due to overload. For this reason most of the machine tools have at least one belt drive in the drive belt. 6.        Feasibility of group drive. 7.        Particularly no influence on the dimension and the size of the electric motor.  8.        The electric motor can be brought inside or at the bottom of the bed. 9.        Cheaper   where the motion is ...