Two-stage cylindrical reduction gear with sprocket

Contents

Introduction

Project Task

1. Kinematic calculation of the drive

1.1. Electric motor selection

1.2. Gear Gear Ratio Refinement

1.3. Determination of torque on drive shafts

2. Calculation of gears

3. Layout Diagram Development

3.1. Preliminary Shaft Calculation

3.2. Calculate the distance between gear parts

3.3. Selecting Bearing Types

3.4. Bearing Installation Diagrams

4. Bearing calculation

4.1. On high-speed shaft

4.2. On intermediate shaft

4.3. On low-speed shaft

4.4. On drive shaft

5. Select Bearing Fits

6. Shaft Strength Check

6.1. Calculation of high-speed shaft

6.2. Calculation of intermediate shaft

6.3. Low Speed Shaft Calculation

7. Calculation of connections

7.1. Calculation of interference connections

7.2. Calculation of key connections

8. Selection of lubrication methods and lubricants, selection of seals

9. Calculation of chain transmission

10. Calculation of safety device

11. Elastic coupling selection and calculation

List of literature used

Appendix I. Calculation of cylindrical gear train

Appendix II. Calculation of chain transmission

Appendix III. Drawing Specification General View of Belt Conveyor Drive

Appendix IV. Drawing specification of cylindrical two-stage gearbox assembly

Appendix V. General view drawing of the belt conveyor drive

Appendix VI. gearbox assembly drawing cylindrical two-stage

Appendix VII Drawing of drive shaft assembly

Appendix VIII. Sprocket drawing with safety device

Appendix IX Gear Wheel Drawing

Appendix X. Intermediate shaft drawing

Introduction

The purpose of the course project is to design the belt conveyor drive.

Belt conveyor - a continuous transporting device with a working member in the form of a belt. They are used to move bulk, lump and piece cargoes over distances that sometimes reach 1012 km or more. They are used in industrial industries, in mines and mines, in agriculture. Depending on the properties and nature of the load to be moved, the inclination angle of the working side of the belt can be set to 90 °.

Components of the drive are an electric motor, a clutch, a two-stage cylindrical reduction gear, a chain drive, a drive shaft with a drum.

The drive device is as follows: torque is transmitted from the electric motor through the clutch to the input shaft of the reduction gear, from the output shaft of the reduction gear through a chain drive - to the 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 assembly drawing;

working drawings of gear box parts;

assembly drawing of sprocket with safety element;

assembly drawing of drive shaft;

general view drawing of the drive;

Calculation explanatory note and specifications.