The wire springs are coiled springs with round, square or special profiled metal wires. They have the ability to resist tension, tension, and torsion loads. They can be generally divided into the following types:
It is the most versatile and widely used. During manufacture, the spiral coil must be wound around the components so that there is a gap between the rings so that the rings can be subjected to force contraction. Therefore, tension is often maintained at both ends.
When subjected to the maximum load, it cannot be completely compressed, and clearance must be maintained between effective turns to prevent friction or other substances from being embedded, causing fatigue failure.
The free length of the spring should be equal to the actual length of the spring plus clearance, plus the amount of deformation.
Compression springs To increase the contact surface, the surface should be ground to obtain 50 to 80% of the contact.
Compression springs are commonly used in valve springs, train buffers, and bicycle seat cushions.
The coils are wound into spiral coils that are in close contact with each other. When they are subjected to external forces, they extend outward and often maintain the force of contraction in the middle.
Both ends are made into hook or straight arm, often into the pin or shaft, when the external force, that is, according to the axis of the spring shaft as a torsional force, making the spring roll tight or loose.
The spiral coil wound into a cone can withstand pressure and tension, and generally has a small force.
The advantages of shrinking each circle into the large circle when compressed are the advantages. For example, the flashlight is covered with a spring for compressing the battery.
Special coil springs
Special cone, barrel and special coil springs are widely used in the spring bed.
Made of flat or plate material, it is also generally called flat spring or leaf spring. There are several kinds of:
(1) Simple plate spring: A metal plate is used to make a spring. When the direction of the coiling of the spring is opposite to the direction of the applied force, the spring generates an elastic force.
(2) Disk spring
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