Course design - Belt conveyor drive (motor - planetary reduction gear)

Contents

Contents

Job Form

Introduction

1. Kinematic calculations

1.1. Electric motor selection

1.2. Calculation of torque on low-speed shaft

2. Computer-Based Calculation Results Analysis and Variant Selection

2.1. Preparation of data for computer calculation

2.2. Options Analysis

3. Sketched Design

3.1. Shafts

3.1.1. Slow-moving shaft

3.1.2. Satellite axis

3.2. Gearbox housing elements

4. Calculation of bearing units

4.1. Calculation of low-speed shaft bearings

4.2. Calculation of drive shaft bearings

4.3. Satellite Axle Bearings Calculation

4.4. Tow bar bearings

5. Calculation of connections

5.1. Body-epicycle-cover pin connection

5.2. Key connection of low-speed shaft and coupling

5.3. Key connection for motor shaft and coupling

5.4. Key connection of drive shaft and drum hub

6. Calculation of drive shaft for strength and fatigue resistance

7. Lubrication System Organization

8. Coupling selection

8.1. Strength condition check

8.2. Bolt connection of gear clutch collars

List of used literature

Introduction

Within the framework of this project, it is necessary to develop a belt conveyor drive. Belt conveyor is designed for continuous horizontal transportation of loads.

The belt is moved by means of a drum. Rotation is transmitted to it by means of planetary reduction motor with asynchronous electric motor. Low-speed shaft of reduction gear is connected to drum by means of toothed coupling.

Power supply is carried out from the AC 3-phase current network with a frequency of 50 Hz and a voltage of 380 V. The design life is 10000 hours with the reliability of rolling bearings 90%, gears 98%. Production is average - 1000 pieces per year.

Sketched Design

3.1. Shafts.

Preliminary values ​ ​ of diameters and lengths of sections of steel shafts are found according to the formulas below. The resulting values are rounded up to standard values.