Crane image on column

Contents

Contents

Introduction

1. Calculation of lifting mechanism

1.1 Selection of polyspast

1.2 Calculation and selection of rope

1.3 Drum calculation

1.4 Selection of hook and cargo suspension.... 10 1.5 Selection of engine, gearbox and lifting mechanism brake

2. Calculation of movement mechanism

3. Calculation of rotation mechanism

4. Calculation of crane stability

5. Special part: Features of cranes foundation calculation on

To column

6. Safety precautions

Conclusion

List of literature

Paper

DBE. – 32 pages. The tab. - 3. Bible. - 2 name.

CRANE, WINCH, ROPE, DRUM, HOOK SUSPENSION, FOUNDATION, ELECTRIC SHAFT, REDUCTION GEAR, LIFTING MECHANISM, HOOK, TURNING MECHANISM, BRAKE.

The goal: to teach the basics of designing a complex machine, to consolidate, deepen and generalize the knowledge acquired in the study of discipline theory.

During the course project the following main tasks are solved:

- calculation of lifting mechanism;

- calculation of crane trolley movement mechanism;

- calculation of rotation mechanism;

- calculation of crane stability;

- safety technique.

The following drawings are made in the graphic part of the course design:

- general view;

- electric steel assembly;

- rotation mechanism.

Introduction

The purpose of this course project is to teach the basics of design of lifting machines and mechanisms, expand and consolidate knowledge in this discipline, accumulate skills in applying general scientific and general engineering knowledge to specific project conditions, acquire skills in working with technical literature.

Lifting machines are an essential part of most industries and play an important role in the mechanization and automation of production processes. Modern craymaking is characterized by improving structures, using new materials, methods and means of manufacture and control, introducing more advanced calculation methods and reducing the mass of cranes based on them, improving their reliability.

Cantilever crane has been widely used and is successfully used for lifting work in workshops, warehouses and construction sites at ambient temperature from 20 to + 40 ° С.

Angle of crane boom 360 °. Speed of lifting of load and movement of hoists correspond to speeds of used hoists .

Cantilever cranes are used no less efficiently in lifting and transportation operations related to maintenance of process equipment.

Cantilever stationary cranes (on the column) are designed to perform lifting and transportation works during maintenance of process equipment, loading and unloading works, etc. in rooms at ambient temperature from 20 to + 40 ° С.

Conclusion

Currently, a huge variety of lifting machines have been created, both general and special.

Specialized design organizations together with machine-building plants have created a number of high-performance, economical and user-friendly machines and devices for mechanizing loading and unloading operations. Electric and forklift trucks, various loading machines for piece and bulk cargoes, stacking and other lifting devices have been created, allowing for comprehensive mechanization in many areas of black and non-ferrous metallurgy enterprises, engineering, coal, chemical industry, railway and transport, construction and installation works, etc.

Variety of weights differing in shape, dimensions, weight, physical and mechanical properties; climatic, technological conditions, ensuring safe and comfortable working conditions - all this dictates a thoughtful and reasonable approach to the design of a new or modernization of the existing model of a lifting machine .

The main trends in the development of lift and transport engineering are:

- creation of qualitatively new types of lifting and transportation machines and mechanisms, as well as extensive modernization of existing machines and installations to provide mechanization and automation of loading, transportation and storage operations in all areas of the national economy;

- increasing the carrying capacity and reliability of machines while significantly reducing their metal capacity due to the use of new kinematic schemes, more advanced calculation methods, the use of rational lightweight rolled stock profiles, new materials (alloyed steels, light alloys and plastics), as well as progressive engineering technology (new heat treatment methods, application of strengthening coatings, etc.). Note that reliability is a complex concept.

Technical characteristics:

D1 = 276 mm - drum diameter

L = 399 mm - drum length

Preparation of a hook 17A of GOST 6627-74

MTO116 engine

Cylindrical horizontal two-stage reduction gearbox Ts2U-315N

Block brake of TKTG series with electrohydraulic pusher of TEG type

Toothed coupling with detachable race (type I) as per GOST 5006 - 83

Engine MTO11-6

кран.cdw

Механизм Подъёма Груза.cdw

готовый.cdw