Torsional spring to design, then we must first understand some of the torsional spring parameters and the working technology requirements.
Below we control parameters of torsional spring diagram to explain the basic parameters.
d (
Spring wire diameter)
: this parameter describes the diameter of the spring line, also is the spring wire thickness, we say the default units in mm.
Dd (
Mandrel diameter)
: this parameter describes the industrial application of the spring shaft diameter, the tolerance + / - 2%.
D1 (
Inner diameter)
Minus two times: the inner diameter of the spring is equal to the diameter of wire diameter.
Torsional spring in the work process, inner diameter can reduce to the mandrel diameter, inside diameter tolerance + / - 2%.
D (
In diameter)
: the pitch diameter is equal to the outer diameter of the spring minus a wire diameter.
D2 (
Outside diameter)
: is equal to the inner diameter plus two times the wire diameter.
Torsional spring in the process of work, the outside diameter will be smaller, tolerance,
±2%±0.
1)
mm。
L0 (
Natural length)
: note: in the working process of the natural length decreased, tolerance + / - 2%.
Tum (
Torsion turns)
: spring winding circle number, circle number of different direct impact on the performance of the torsional spring.
The smaller the more laps torsional spring torsion.
度(
The original perspective)
: a torsional spring original Angle between two twisted foot.
Above the original Angle is 180 °.
X1 (
Bearing length)
: from the spring coil axis to the length of a spring support, generally work is fixed, fixed arm, also is what we call the tolerance + / - 2%.
X2 (
Wire length)
: this is the spring to spring coil body axis length of the screws, generally work is turning, is what we mean by applying lever, the tolerance + / - 2%.
A1 (
Working torsion Angle)
:
torsion spring torsion Angle in the work.
(
Torsion Angle)
The biggest torsion Angle: torsion spring.
F1 (
The workload)
When the job is Angle A1: torsional spring effect on the torsional spring bearing force.
Fn (
The maximum load)
: allows the effect on the torsional spring supporting one of the most strongly, the corresponding is An torsion Angle when the required actions.
M1 (
Operating torque)
: torsional spring allowed torque when the job is Angle A1 (
Newton * mm)
。
锰(
Maximum torque)
: the maximum allowable torque (
Newton * mm)
, the corresponding is An allowed torque of torsion Angle.
K (
Spring stiffness)
: this parameter to determine the spring resistance at work.
Newton * mm/degrees, tolerance + / - 15%.
bearing position: torsion spring bearing with four position: 0 ° and 90 °, 180 ° and 270 °.
spiral direction: right-handed spring counterclockwise spin, left spin clockwise spiral spring.
All of our spring both spin to produce.
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