Machinery's Handbook 28th Edition
INVOLUTE
SPLINES
Page
1
of
38
Copyright 2008, Industrial Press Inc., New York, NY - www.industrialpress.com
SPLINES AND SERRATIONS
(翻译:朱晓?/p>
,
浙江,金华)
A splined shaft is one having a series of parallel keys formed integrally with the shaft and
mating with corresponding grooves cut in a hub or fitting; this arrangement is in contrast to a
shaft
having
a
series
of
keys
or
feathers
fitted
into
slots
cut
into
the
shaft.
The
latter
construction
weakens
the
shaft
to
a
considerable
degree
because
of
the
slots
cut
into
it
and
consequently, reduces its torque-transmitting capacity.
花键轴是一种具有“一系列相互平行的齿、并且齿与轴整体成型”的轴,它与在轮?/p>
上或者装配体上开的键槽相配合。这种装置与“在轴上开槽并且与一组销子或者楔键相
配合”的结构相反。后者的结构由于在轴上开槽大大降低了轴(的强度),降低了传?/p>
扭矩的能力?/p>
Splined shafts are most generally used in three types of applications: 1 ) for coupling shafts
when
relatively
heavy
torques
are
to
be
transmitted
without
slippage;
2)
for
transmitting
power to slidably-mounted or permanently-fixed gears, pulleys, and other rotating members;
and 3) for attaching parts that may require removal for indexing or change in angular position.
花键轴主要用在以下三种情况:
1
)需要在无滑动的联轴器上传递大的扭矩;
2
)用?/p>
向“可滑动的装配组件”或者“固定装配的齿轮组或滑轮副”传递动力,
3
)用于“要
求指定滑移量或转角位置”的配件上?/p>
译注
A1
?/p>
?/p>
slidably-mounted
?/p>
例如球笼式等速万向节?/p>
万向节同时能转动一定角度;
?/p>
ermanently-fixed gears
?/p>
例如齿轮变速箱?/p>
(凡是带
“译
注”的,表示译者的理解,下同)
Splines having straight-sided teeth have been used in many applications (see SAE Parallel
Side Splines for Soft Broached Holes in Fittings); however, the use of splines with teeth of
involute
profile
has
steadily
increased
since
1)
involute
spline
couplings
have
greater
torque-transmitting
capacity
than
any
other
type;
2)
they
can
be
produced
by
the
same
techniques
and
equipment
as
is
used
to
cut
gears;
and
3)
they
have
a
self-centering
action
under load even when there is backlash between mating members.
具有“直边式齿形”的花键已经适用于多种场合(请查看“用于软拉削加工成型的直
边式花键”);然而,“齿侧具有渐开线形状的花键”的使用正在逐步的增长,原因?/p>
下:
1
)渐开线花键传递扭矩的性能超过其他形式?/p>
2
)可用加工齿轮的技术或设备来加
工;
3
)在内齿和外齿配合情况下产生的反作用力具有自定心功能?/p>
译注
A2
?/p>
?/p>
Parallel Side Splines
”指的是矩形花键,文中翻译成“直边式花键?/p>
,见?/p>
GB/T 1144
矩形花键尺寸、公差和检验?/p>
?/p>
译注
A3
?/p>
?/p>
SAE Parallel Side Splines for Soft Broached Holes in Fittings
”指
SAE J499A
,一种类?/p>
GB/T 1144
的标准?/p>
Involute Splines
American National Standard Involute Splines*.
?/p>
These splines or multiple keys are similar
in
form
to
internal
and
external
involute gears.
The
general
practice is
to form
the external
splines either by hobbing, rolling, or on a gear shaper, and internal splines either by broaching
or on a gear shaper. The internal spline is held to basic dimensions and the external spline is
varied to control the fit. Involute splines have maximum strength at the base, can be accurately
spaced
and
are
self-centering,
thus
equalizing
the
bearing
and
stresses,
and
they
can
be
measured and fitted accurately.
美国渐开线标准:这种花键的成型和齿轮的内外花键类似。通常的成型加工方法是?/p>
花键用滚铣刀、搓齿或插齿刀,内花键用拉削、齿轮插齿刀。内花键的尺寸是固定的,
外花键根据不同的配合采用不同的尺寸。渐开线花键在近跟处有最大的强度,(键齿?/p>
能精确分布和自定心,这样就有相同的支撑力和应力,同时能准确地配合和测量?/p>
译注
A4
:内花键尺寸不变,外花键变,原理等同于基孔制?/p>
In
American
National
Standard
ANSI
B92.1-1970
(R
1993),
many
features
of
the
1960