ВУЗ:
Составители:
Рубрика:
49
Arc of approach is the arc of the pitch circle through which a tooth travels
from the first point of contact with the mating tooth to the pitch point.
Arc of recession is the arc of the pitch circle through which a tooth travels
from its contact with a mating tooth at the pitch point until contact ceases.
Axial pitch is the distance parallel to the axis between corresponding sides
of adjacent teeth.
Axial plane is the plane that contains the two axes in a pair of gears. In a
single gear the axial plane is any plane containing the axis and any given
point.
Axial thickness is the distance parallel to the axis between two pitch line
elements of the same tooth.
Backlash is the shortest distance between the non-driving surfaces of
adjacent teeth when the working flanks are in contact.
Base circle is the circle from which the involute tooth curve is generated or
developed.
Base helix angle is the angle at the base cylinder of an involute gear that
the tooth makes with the gear axis.
Base pitch is the circular pitch taken on the circumference of the base
circles, or the distance along the line of action between two successive and
corresponding involute tooth profiles. The normal base pitch is the base pitch
in the normal plane and the axial base pitch is the base pitch in the axial
plane.
Base tooth thickness is the distance on the base circle in the plane of
rotation between involutes of the same pitch.
Bottom land is the surface of the gear between the flanks of adjacent teeth.
Center distance is the shortest distance between the non-intersecting axes
of mating gears, or between the parallel axes of spur gears and parallel helical
gears, or the crossed axes of crossed helical gears or worm gears.
Central plane is the plane perpendicular to the gear axis in a worm gear,
which contains the common perpendicular of the gear and the worm axes. In
the usual arrangement with the axes at right angles, it contains the worm axis.
Chordal addendum is the radial distance from the circular thickness chord
to the top of the tooth, or the height from the top of the tooth to the chord
subtending the circular thickness arc.
Chordal thickness is the length of the chord subtended by the circular
thickness arc. The dimension obtained when a gear tooth caliper is used to
measure the tooth thickness at the pitch circle.
Circular pitch is the distance on the circumference of the pitch circle, in
the plane of rotation, between corresponding points of adjacent teeth. The
length of the arc of the pitch circle between the centers or other
corresponding points of adjacent teeth.
Страницы
- « первая
- ‹ предыдущая
- …
- 47
- 48
- 49
- 50
- 51
- …
- следующая ›
- последняя »
