Wire diameter d (
mm)
In the 20 diameter D (
mm)
Effective number of turns n110 material 60 si2mng/(
Kg/mm)
8000 allowable shear stress [
τ]
(
Mpa)
740 the maximum allowable pressure Ps (
公斤。
f)
2154.
3685 spring wire diameter d (
mm)
C0。
2 to 0.
47-140.
5 ~ 15 ~ 121.
1 ~ 2.
25-102.
5 ~ 64 ~ 107 ~ 164 ~ 818 ~ 404 ~ 6, alpha usually take 5 ~ 90.
The length of the spring wire materials: (
The
compression spring)
;
δ= t -
d;
The freedom of the spring length: H = n, the delta + (
n0 -
0.
5)
d(
Tight and smooth on both ends)
;
H=n·δ+(
n0 + 1)
d(
At both ends and tight, but not smooth)
。
Spring spiral Angle: t = d (
The tensile spring)
;
Type: lambda Max -
-
-
Spring maximum deformation;
Δ -
-
-
Maximum deformation of the minimum distance between adjacent two spring wire, generally not be less than 0.
1d。
Spring steel wire spacing: Spring Festival is apart from the general press type t: (
The compression spring)
;
In the design of spring, convolute ratio (
Or say the index of spring)
C is the most important.
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