Spring Function & Applications

Key features:

(1) Control the movement of machinery, such as valve springs in internal combustion engines, control springs in clutches, etc. (2) Absorb vibration and impact energy, such as buffer springs under automobiles and train cars, vibration absorption springs in couplings, etc. (3) Storing and outputting energy as power, such as clock springs, etc. (4) Used as force measuring elements, such as force gauges, springs in spring scales, etc. The ratio of load to deformation of a spring is called spring stiffness, and the greater the stiffness, the stiffer the spring. Spring is a widely used elastic element in the mechanical and electronic industry, the spring can produce large elastic deformation when loaded, convert mechanical work or kinetic energy into deformation energy, and after unloading, the deformation of the spring disappears and returns to its original state, converting the deformation energy into mechanical work or kinetic energy.

Measurement function

We know that within the elastic limit, the elongation (or contraction) of the spring is directly proportional to the external force. The property of springs is used to make spring scales.

Reset function

The spring is deformed under the action of external force, and after the external force is removed, the spring can return to its state. Many tools and equipment use the property of springs to reset. For example, many building gates have return springs installed on the hinges, so that the doors automatically reset when people enter and exit. People also use this function to make automatic umbrellas, mechanical pencils and other supplies, which is very convenient. In addition, various buttons and keys are also indispensable with a return spring.

Drive function

Mechanical clocks and clockwork toys are driven by tight clockwork. When the spring is tightened, the spring bends and deforms, and a certain amount of elastic potential energy is stored. After release, the elastic potential energy is converted into kinetic energy, which is driven by the transmission device.

Buffering function

A spring is installed between the frame of the locomotive and the wheels, and the elasticity of the spring is used to slow down the bumps of the vehicle.

Vocal function

When air flows through the reed holes in harmonicas, accordions, impact reeds, and the reeds vibrate to produce sound.

Tightening function

Observing various electrical switches, it will be found that one of the two contacts of the switch must be equipped with a spring to ensure that the two outlets are in close contact, which is good conduction. If the contact is poor, the resistance at the contact point will increase, the heat generated when the current passes through will increase, and in severe cases, the metal at the contact will melt. Both metal pillars of the bayonet lamp head are equipped with springs for good contact; As for the central metal sheet of the screw lamp head and the metal plate of all sockets, they are reeds, and their function is to keep the two sides in close contact to keep them in good condition. In the cassette, there is a phosphor bronze reed, which uses the elasticity generated by its bending and deformation to make the magnetic head in close contact with the tape. There is a long coil spring in the stapler, on the one hand, its function is to tighten the staples, on the other hand, when the front nails are pushed out, the back nails can be sent to the front to prepare for the nails to be pushed out comfortably, so that the nails can be automatically pushed to the front until all the nails are pushed out. Many machines feed the material automatically, and clips such as clips for clamping clothes, ballpoint pens, and pen cases are clamped on clothes using the pressing function of springs.
Reprint remarks: CATALOG Precision Components (Suzhou) Co., Ltd