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It presents theoretical and practical knowledge related to analysis of dynamic load of the individual drive elements containing worm gears. The monograph describes general principles of worm gear systems and methods of creation of dynamic model of worm reducer or of an entire drive.
Calculation of a table of proper solutions. Calculation of complete geometrical parameters. Calculation of strength parameters, safety check. Gearing design for precise centre-line distance. Auxiliary calculations (heating, shaft design). Support of 2D and 3D CAD systems.
The worm gear action is a sliding action which results in significant frictional losses. The ideal combination of gear materials is for a case hardened alloy steel worm (ground finished) with a phosphor bronze gear. Other combinations are used for gears with comparatively light loads. Specifications.
The decisive strength criterion for small modules is the pitting resistance of the worm gear flanks and for larger modules usually the tooth-root strength of the worm gear.
Worm gears are grouped into two general classes, fine-pitch worm gearing, and coarse-pitch worm gearing. 1) Fine-pitch worms and worm gears are generally used to transmit motion (linear or rotary) as opposed to power or torque.
Calculation of strength parameters, safety check. Gearing design for precise centre-line distance. Auxiliary calculations (heating, shaft design). Support of 2D and 3D CAD systems. The calculations use procedures, algorithms and data from standards ANSI, ISO, DIN, BS and specialized literature.
18 sie 2023 · To get out of this closed design situation in the literature [2 – 7], various approximate formulas for the preliminary determination of the sliding speed from the initial data (ID) are proposed: kinematic scheme, operating mode, service life, transmitted power, worm rotation frequency, gear ratio.
