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Torsion
springs
Shuangyuan can produce various sizes and shapes of torsion spring.
With wire diameter range from 0.15-60mm.
All the torsion spring are manufactured by fully automatic spring making machines.
These torsion spring are widely used in computer, electron, home appliances, camera, instrument, motorcycle, automobile and other industry.
Main material: Carbon spring steel, alloy spring steel,
Refractory steel, stainless steel, high temperature
Resisting alloy, corrosion-resistant alloy and bronze etc.
Pls provide us the drawing or sample,we can make as per your request.
Description of parameters
for Torsion springs
1,Physical parameters
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d (wire diameter): This parameter
describes the diameter of wire used as material for spring.
Dd (Shaft): This parameter describes maximal diameter of spring
shaft in industrial applications.Tolerance for this parameter
is (+-)2%(indicative).
Di (internal diameter): Internal diameter of a spring. It can
be calculated by subtracting the wire diameter multiplied by
2 from the external diameter of a spring. Internal diameter
in torsion springs decreases while the spring is working even
up to shaft diameter. Tolerance for this parameter is (+-)2%(indicative).
De (external diameter): External diameter of a spring. It can
be calculated by adding the wire diameter multiplied by 2 to
the internal diameter of a spring. External diameter in torsion
springs decrease while the spring is working. Tolerance for
this parameter is (+-)2% with tolerance (+-) 0.1 mm
L0 (Free Length): WARNING: Free Length decrease while spring
is working. Tolerance for this parameter is (+-)2%(indicative).
Ls (Leg Length): It is the distance from the center axis of
the coil body to the end of the torsion springs' leg. Tolerance
for this parameter is (+-)2%(indicative).
An (Maximum angle): Maximum acceptable rotation angle for the
spring in degrees. Tolerance for this parameter is (+-)15 degrees
(indicative).
Fn (Maximum force): Maximum acceptable force that can operate
at the end of torsion springs' leg. Tolerance for this parameter
is (+-)15%(indicative).
Mn (Maximum torque): Maximum acceptable torque (Newton * mm).
Tolerance for this parameter is (+-)15%(indicative).
R (Spring rate): This parameter determines spring's resistance,
while it is working. It is measured in Newton * mm / degree.
Tolerance for this parameter is (+-)15%(indicative).
A1 & F1 & M1: (angle at torque or force) The following
equation calculates the angle as a function of the torque: A1
= M1/R. In order to calculate the torque from the force, we
use this equation: M = F*Ls
Leg position There are 4 types of torsion springs' leg positions:
0, 90 ,180 or 270 degrees (see picture above).
Helix direction: A right-hand-wound spring loads in a counter-clockwise
direction. A left-hand-wound spring loads in a clockwise direction.
Both types are available in all sizes.
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2,Materials |
| I (Inox steel):
Inox 18/8 mark Z10 CN 18.09. |
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3,Tolerances |
Leg position: (+-)15 degrees
Leg Length: (+-)3 % |
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