4. How to Select Chains
2. Hanging transmission. This design is increasing in popularity. It is used, for example, in parking garage elevators. Sprockets rotate, and conveyed objects can be lifted or suspended at the end of chains. (Figure 4.3). 3. Shuttle traction. (Figure 4.4). 4. Pin-gear drive. In this design, the chains are laid straight or in a large diameter circle and are driven with special tooth form sprockets. This design is more economical than using gears (Figure 4.5). In this book, we will focus on items 1 and 2. Consult your manufacturer’s catalog for information on items 3 and 4.
Figure 4.3 Hanging Transmission Where Conveyed Objects Are Lifted or Suspended at the End of Chains
Figure 4.4 Shuttle Traction
Figure 4.5 Pin-Gear Drive Transmission
4.1.1 Chain Selection Factors You must consider the following conditions: 1.Type of application. 2.Shock load. 3.Source of power: motor type; rated power (kW); moment of inertia, I (kg • m 2 ); rated torque at driving speed; starting torque; and stopping torque.
4. Drive sprocket rpm and shaft diameter. 5. Driven sprocket rpm and shaft diameter.
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