Springs part 1 F10 - lwry^ ooa uJ uJ ul cfw_(r )f,fiii...

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MACHINE DESIGN - An Integrated Approach, 2ed by Robert L. Norton, Prentice-Hall 2000 FIGURE 13-2 Spring Configurations (Adapted from: Design Handbook : Engineering Guide to Spring Design , 1987, Associated Spring, Barnes Group Inc., 10 Main St., Bristol, Conn., with permission) Belleville wave slotted finger curved (e) Spring washers. Push Belleville has high loads and low deflections choice of rates (constant, increasing, or decreasing). Wave has light loads, low deflection, uses limited radial space. Slotted has higher deflections than Belleville. Finger is used for axial loading of bearings. Curved is used to absorb axial end play. (g) Beam springs. Push or Pull wide load but low deflection range rectangular or shaped cantilever, or simply supported. (h) Power or motor springs. Twist— exerts torque over many turns. Shown in, and removed from, retainer. (f) Volute spring. Push may have an inherently high friction damping. (b) Helical extension springs. Pull wide load and deflection range round or rectangular wire, constant rate. (c) Drawbar springs. Pull uses comp- ression spring and drawbars to provide extension pull with fail-safe, positive stop. (d) Torsion springs. Twist round or rectangular wire constant rate. (a) Helical compression springs. Push wide load and deflection range round or rectangular wire. Standard has constant coil diameter, pitch, and rate. Barrel, hourglass, and variable-pitch springs are used to minimize resonant surging and vibration. Conical springs can be made with minimum solid height and with constant or increasing rate. standard— constant rate variable pitch variable rate barrel conical hourglass (i) Constant Force. Pull long deflection at low or zero rate.
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Springs part 1 F10 - lwry^ ooa uJ uJ ul cfw_(r )f,fiii...

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