TAILIEUCHUNG - Fundamentals of Machine Design P38

Flat belts drives can be used for large amount of power transmission and there is no upper limit of distance between the two pulleys. Belt conveyer system is one such example. These drives are efficient at high speeds and they offer quite running. A typical flat belt drive with idler pulley is shown in Fig. . Idler pulleys are used to guide a flat belt in various manners, but do not contribute to power transmission. A view of the flat belt cross section is also shown in the figure. | Module 13 Belt drives Version 2 ME IIT Kharagpur Lesson 2 Design of Flat Belt drives Version 2 ME IIT Kharagpur Instructional Objectives At the end of this lesson the students should be able to understand Features of flat belt drives Flat belt materials Flat belt stresses and its specifications Types of design factors A sample design procedure. Flat belt drives Flat belts drives can be used for large amount of power transmission and there is no upper limit of distance between the two pulleys. Belt conveyer system is one such example. These drives are efficient at high speeds and they offer quite running. A typical flat belt drive with idler pulley is shown in Fig. . Idler pulleys are used to guide a flat belt in various manners but do not contribute to power transmission. A view of the flat belt cross section is also shown in the figure. Idler pulley Belt drive with idler Flat belt cross-section C The flat belts are marketed in the form of coils. Flat belts are available for a wide range of width thickness weight and material. Depending upon the requirement one has to cut the required belt length from the coil and join the ends together. The fixing of the joint must be done properly because the belt normally gets snapped from the improper joints. The best way is to use a cemented belt from the factory itself or with care one can join these belts with various types of clips that are available in the market. Version 2 ME IIT .

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