Crane design with swivel boom - coursework on ptm

Contents

Contents

Introduction

Lifting mechanism

Electric motor selection

Rope Selection

Drum

Drive

Blocks

Block brake

Steel Structure Calculation

Defining Basic Dimensions

Static Bend Check

Weight Determination

Check of vibration attenuation time

Strength check

Support and turning units

List of literature

Application

Introduction

Lifting and transporting machines are an integral part of advanced production, since they mechanize the main technological processes and auxiliary works. In flow and automated lines, the role of lifting and transportation machines has increased, and they have become an organic part of technological equipment, and their impact on the technical and economic performance of the enterprise has become very significant.

Increasing productivity and improving the technical and economic indicators of lifting and transport machines, increasing their strength, reliability and durability is inextricably connected with the use of the latest calculation and design methods.

Modern production of lifting machines is based on the creation of block and unified structures. The use of block structures allows you to produce the mechanism assembly in its complete form, which leads to individual workshops and plants.

Lifting machines are very diverse in purpose and design.

In this course work the cantilever rotary valve on the cantilever is considered.

This type of crane is widely used in machine-building enterprises for unloading and loading, transferring products from one technological operation to another and much more.