Design of chain conveyor drive with two-stage cylindrical reduction gear made according to unfolded diagram

Contents

TABLE OF CONTENTS

Job Form

Introduction

1. Selection of electric motor

2. Calculation of kinematic parameters

3. Calculation of torque on slow-moving shaft

4. Preparation of data for computer calculation

5. Result of calculation

6. Design calculation of shafts

7.Excise Design

7.1. Shaft diameters preliminary values

7.2.Construction of gears

7.3.Construction of housing parts and bearing covers

7.4. Fitting of bearings type

8. Calculation of connections

8.1.Mile connections

8.1.1. Key connection of high-speed shaft to clutch

8.1.2. Key connection of gearbox output shaft and coupling

8.1.3. Keyway connection of intermediate shaft of reduction gear box with wheel

8.1.4. Key connection of drive shaft and coupling

8.2.Tensioned connection on low-speed wheel

9. Calculation of low-speed shaft bearings

10. Calculation of drive shaft for strength

11. Coupling selection

11.1. Calculation and design of combined coupling

11.2.Compute elastic coupling with torus-shaped shell

12. Lubrication System Organization

13.Stellar drive shaft

List of literature used

Introduction

The purpose of course project No. 1519: to design a chain conveyor drive with a two-stage cylindrical reduction gear made according to an expanded scheme.

Components of the drive are an asynchronous electric motor, a chain drive with a tensioner, a cylindrical two-stage reduction gear, a drive shaft with sprockets and a clutch. Drive device: torque is transmitted from the electric motor to the input shaft of the reduction gear box using a coupling with a torus-shaped shell; from output shaft of reduction gear box through combined coupling to drive shaft.

You need to perform the necessary calculations, select the best diagram parameters and develop design documentation for the manufacture of the drive:

• gearbox general view drawing (at sketched design stage);

• gearbox assembly drawing (at technical design stage);

• working drawings of gear box parts;

• general view drawing of the drive;

• calculation and explanatory note and specifications;

For calculations, the CASIO fx570 ES calculator was used. For graphic constructions, the Autodest AutoCAD Professional 2018 program was used. Standard products are taken from the standard parts library.