Design of Belt Conveyor Drive (Cylinder Gearbox)

Contents

1 Preliminary calculation of kinematic diagram

drive and motor selection

2 Gearbox calculation and design

2.1 Material selection and definition of admissible

gear voltages

2.1.1 Material Selection

2.1.2 Calculation of additional contact stresses

2.1.3 Definition of allowable bending stresses

2.2 Design calculation of low-speed gear train of reduction gear box

2.2.1 Calculation of axial distance

2.2.2 Calculation of gear engagement module

2.2.3 Basic geometric parameters of transmission

2.3 Check calculation of slow-speed gear train

2.3.1 Contact strength calculation

2.3.2 Bending endurance calculation

2.3.3 Check teeth for overload from peak loads

2.4 Design calculation of gearbox high-speed gear train

2.4.1 Calculation of axial distance

2.4.2 Calculation of gear engagement module

2.4.3 Basic geometric parameters of transmission

2.5 Check calculation of slow-speed gear train

2.5.1 Contact strength calculation

2.5.2 Bending endurance calculation

2.5.3 Check teeth for overload from peak loads

2.6 Design calculation of shafts for strength

2.6.1 Material of shafts

2.6.2 Intermediate Shaft Design

2.6.3 Design of low-speed shaft

2.6.4 High Speed Shaft Design

2.6.5 Calculation of intermediate shaft by bending and torsion stresses

2.6.6 Selection of bearings for assigned service life

2.6.7 Test calculation of the shaft for endurance

2.6.8 Calculation of low-speed shaft by bending and torsion stresses

2.6.9 Selection of bearings for assigned service life

2.6.10 Test calculation of the shaft for endurance

2.6.11 Coupling selection and check

2.6.12 Calculation of high-speed shaft by bending and torsion stresses

2.6.13 Selection of bearings for assigned service life

2.6.14 Test calculation of the shaft for endurance

2.6.15 Coupling selection and check

2.6.16 Gearbox lubrication type and lubricant type

3 Preliminary drive arrangement

List of literature

Application

Introduction

In this course project, you need to design the belt conveyor drive. Conveyor sprockets are driven by asynchronous motor through cylindrical two-stage reduction gear. Reduction gear is connected to electric motor by means of elastic coupling to compensate for radial and axial displacements.

2.6.16 Gearbox lubrication type and lubricant type

For this gearbox we will use a crankcase lubrication system. Oil is poured into the reduction gear case so that wheel rims are immersed in it. When they rotate, the oil is carried away by the teeth, sprayed, falls on the inner walls of the body, from where it flows into its lower part. Inside the housing, a suspension of oil particles in the air is formed, which covers the surfaces of the parts located inside the housing.

Depending on the contact voltage and peripheral speed of the wheels, we choose lubricating oil of the type I-T-D-220 (industrial, for heavy-loaded units, with anti-oxidizing, anti-corrosion and anti-wear additives, kinematic viscosity class 220). The oil is at 50 mm. Bearings are lubricated with the same oil.

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