Main functions of imported spring

major function 

① Control the movement of machinery, such as valve spring in internal combustion engine, control spring in clutch, etc.

② Absorb vibration and impact energy, such as buffer spring under car and train carriage, vibration absorption spring in coupling, etc.

③ Storage and output of energy as power, such as clocks and watches springs, springs in firearms, etc.

④ It is used as force measuring element, such as force measuring device, spring in spring scale, etc. The ratio of load to deformation of spring is called spring stiffness. The greater the stiffness is, the harder the spring is.

The imported spring is a kind of elastic element widely used in the mechanical and electronic industry. When the spring is loaded, it can produce large elastic deformation and convert the mechanical work or kinetic energy into deformation energy. 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 extension (or contraction) of the spring is proportional to the external force. The spring scale is made of spring.

Reset function

The spring deforms under the action of external force. After the external force is removed, the spring can return to its original state. Many tools and equipment are reset by spring. For example, the hinges of many building doors are equipped with reset springs. When people enter or leave, the doors will reset automatically. People also use this function to make automatic umbrellas, automatic pencils and other supplies, which are very convenient. In addition, all kinds of buttons and buttons also need a return spring.

Driving function

Mechanical clocks and clocks, clockwork toys are driven by winding. When the spring is tightened, it will produce bending deformation and store a certain elastic potential energy. After release, the elastic potential energy is transformed into kinetic energy, which is driven by the transmission device. In toy guns and starter guns and military guns, one of the properties of springs is also used to work.

Buffer function

The spring between the locomotive and vehicle frame is used to reduce the bumping.

Vocal function

When air flows through the hole in the harmonica and accordion, it strikes the reed, which vibrates and makes a sound.

Compression function

Observing all kinds of electrical switches, we will find that one of the two contacts of the switch must be equipped with a spring to ensure that the two contacts are in close contact and have good conduction. If the contact is not good, the resistance at the contact will increase, the heat generated when the current passes will increase, and in serious cases, the metal at the contact will melt. The two metal pillars of the bayonet lamp cap are equipped with springs for good contact. As for the central metal sheet of the screw lamp cap and the plug-in metal sheet of all sockets, they are all springs, whose function is to make the two sides in close contact to maintain good contact. In the cassette tape, there is a phosphor bronze spring, which makes the magnetic head in close contact with the tape by using the elastic force generated by its bending deformation. There is a long coil spring in the stapler. On the one hand, it is used to tighten the staples. On the other hand, when the front nails are pushed out, the back nails can be sent to the front in case the nails are pushed out comfortably. In this way, the nails can be pushed to the front automatically until all the nails are pushed out. Many machines feed automatically, and the automatic loading of bullets in automatic rifles depends on this function of springs. In addition, clips such as clothes clips, ball point pens and clips on pen covers are clamped on clothes by the compression function of springs.

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