Measuring and testing – Toothed gear
Patent
1993-12-20
1995-02-28
Gutierrez, Diego F. F.
Measuring and testing
Toothed gear
335019, 3350113, 3350116, 3350119, G01H 1302
Patent
active
053926447
ABSTRACT:
A method for manual inspection of gears. A simple, manual method and apparatus is provided for inspection of a variety of gears. The method is particularly useful for determination of helical angle deviation and taper in helical gears. The gear to be inspected is placed in a suitable holder, or on a smooth support surface. A selected master gear segment, manufactured to precise tolerances such that it would perfectly fit an inspected gear that has no error, is brought into stationary, meshing engagement with the inspected gear. The selected master gear segment is supported in a working position by a support structure in a manner that the selected master gear segment may be displaced about an axis with respect to a reference datum plane. Displacement of the selected master gear is by way of rotation of the gear about a pivot A two axis movement type unit which is used for measuring both helical angle deviation and taper. By utilizing a selected master gear segment of known length, the displacement of the measuring surface from the datum plane may be determined by way of a height gage.
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Goodloe, Jr. R. Reams
Gutierrez Diego F. F.
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