Design of the tape conveyer drive. coaxial gearbox

Contents

Kinematic and power calculation of the drive

Calculation of allowable stresses for designing cylindrical and conical gears

Calculation of V-belt transmission

Calculation of gears

Design calculation of shafts

Check of PC gear calculations

Gearbox Sketch Layout

Design of bearing covers

Gearbox Housing Design

Output shaft design diagram

Check of low-speed shaft bearings

Check of key connections

Gear Design

Reduction gear box lubrication

Gearbox assembly

Bibliographic list

Gearbox assembly

Draw the gearbox in two projections on A1 sheet in scale 1:4 with specification, title block and specification.

Prior to assembly, inner cavity of reducer housing is thoroughly cleaned and covered with oil-resistant paint.

Assembly is performed in accordance with gearbox assembly drawing, starting from shaft assemblies:

- ball bearings pre-heated in oil up to 80100 ° С are fitted on the input shaft. Then on one end of the shaft we put on a cover with a set of oil-containing gaskets, and on the other cover with a set of oil-containing gaskets and a seal;

- a key is put into the intermediate shaft and the gear wheel is pressed into the shaft collar; then we put on a spacer bushing and install ball bearings preheated in oil. Then on both ends of the shaft we put on covers with a set of oil-containing gaskets;

- key is put on output shaft and gear wheel is pressed into shaft collar; then install ball bearings heated in oil. Then we put on a cover with a seal.

The assembled shafts are laid in the base of the reduction gear case, we insert the covers and put on the cover of the case, covering the surfaces of the joint of the cover and the case with alcohol varnish. For alignment, install the cover in the housing using two conical pins; tighten the bolts that attach the cover to the housing.

After that, we put a spacer ring on one end of the intermediate shaft, put plastic grease in the bearing chambers, put bearing covers with a set of metal gaskets for adjustment.