Chain Conveyor Drive Drawings with Explanations

Contents

Contents

Introduction

1. Purpose and scope of the designed object

1.1. Technical characteristics of the designed object

1.2. Design diagram:

1.3. Data for calculation:

1.4. Calculation condition

1.5. Electric motor selection

1.6. We determine the gear ratio of the drive

1.7. Determine power speed parameters on the drive shafts. Determine power on drive shafts

1.8. Let's determine the torque on the drive shafts

2. Calculation of slow-moving cylindrical transmission

2.1. Calculation Task

2.2. Diagram of cylindrical low-speed gear transmission

2.3. Calculation condition

2.4. Material Selection and Stress Tolerance Calculation

2.5. Design calculation

2.6. Engagement force

2.7. Check of wheel teeth by bending stresses

2.8. Check of wheel teeth by contact stresses

3. Calculation of high-speed cylindrical transmission

3.1. Calculation task

3.2. Calculation data of high-speed helical transmission

3.3. Cylindrical High Speed Gear Diagram

3.4. Calculation condition

3.5. Material Selection and Stress Tolerance Calculation

3.6. Design calculation

3.7. Engagement force

3.8. Check of teeth and wheels by bending stresses

3.9. Check of wheel teeth by contacts and stresses

4. Shaft calculation

4.1. Purpose

4.2. Data for calculation

4.3. Calculation condition

4.4. Fast shaft. Scheme

4.5. Intermediate shaft

4.6. Slow-moving shaft

5. Selecting Bearings

5.1. Selection of high-speed shaft bearings

6. Calculation of conical open transmission

6.1. Conical open transmission scheme

6.2. Open Conical Transmission Calculation Data

6.3. Calculation condition

6.4. Design calculation

6.5. Diameters of outer dividing circle of wheel

6.6. Taper angles, taper distance and wheel width, transmission module, number of teeth and actual gear ratio

6.7. Final wheel dimensions

6.8. Fitness of wheel blanks

6.9. Engagement forces

6.10. Check of wheel teeth by bending stresses and contact stresses

List of sources used

Introduction

The technical level of all branches of the national economy is largely determined by the level of development of mechanical engineering. Based on the development of mechanical engineering, complex mechanization and automation of production processes is carried out in industry, construction, agriculture, and transport.

The object of the course design is a chain conveyor drive with a cylindrical reduction gear and an open conical gear.

There are: worm, cylindrical, conical, wave, etc. Most often, they are made in the form of a separate mechanism that serves to transfer rotation from the shaft of the engine to the shaft of the working machine, and also reduces the angular speed on the shaft of the working machine.

The reduction gear consists of a housing, which can be obtained by casting or welding. Separate parts are already located in the housing itself: shafts, gears, bearings, etc. Casting of casings is usually used in mass production as it is more expedient, and is most often made of cast iron.

In the course design process, the purpose of the machine parts is to use the experience of unified gear design gained in the industry. The gearbox to be designed can be of general or special purpose. Special-purpose gearboxes can be made with non-standard parameters. However, when designing even non-standard gearboxes, it is necessary to widely use standard and normalized steels.

To transfer torque from the engine to the reduction gear box, or from the reduction gear box to the working machine, various gears are used, such as belt chain, but clutches are most often used. The design of the couplings is diverse. The type of coupling is selected depending on the requirements imposed on it in this actuator. The coupling shall compensate for shaft misalignment, reduce dynamic loads, protect the drive from overload, etc.

If standard couplings do not satisfy the design conditions, special couplings are designed. The main passport characteristic of any coupling is the torque for which it is designed. A reducer on technical and economic indicators is also considered to determine and strive for the world level of mechanical engineering.

Purpose and scope of the designed object

Gearbox - material and technical products. This mechanism serves to change the rotational speed when the rotational motion is transmitted from one shaft to another.

Gearbox application area:

Planetary reduction gears and cylindrical reduction gears made according to the scheme of mutual arrangement of the electric motor and the output shaft became the most widespread in industry. Such mechanisms are suitable for use in temperate climatic conditions, indoor or outdoor installations under a canopy.

List of sources used

Dunaev P.F., Leoikov O.P. Machine details. Course Design: Mechanical Engineering Tutorial. special. institutions of the middle prof. image. -5th ed., Additional. -M.: Mechanical Engineering, 2007. - 560 s., Il.

Course design of machine parts: Tutorial/S.A. Chernyavsky, K.N. Bokov, I.M. Chernin, G.M. Itskovich, V.P. Kozintsov.

-3rd ed., stereotypical. Reprint from the publication of 1987 - M.: LLC TID Alliance, 2005. – 416 pages.

Machine details. Detailed drawings of machine parts. tutorial for technical. specialties. Full time. and in absentia. obuch. – 138 pages, 12 l. approx. Drawing table Krasnoyarsk. 2010

Kurmaz L.V. Machine details. Design: Reference Manual/A.T. Skoibed. – M.: Vyssh.shk., 2004. - 309s.: il.