What are the main roles of springs?

(1) To control the movement of machinery, such as valve springs in internal combustion engines, control springs in clutches and so on.

(2) Absorption of vibration and shock energy, such as automobiles, train cars under the buffer spring, coupling vibration-absorbing springs and so on.

(3) Storage and output energy as power, such as clock springs, firearms in the spring. Suzhou Spring Factory

(4) Used as a force measuring element, such as force gauge, spring scale in the spring. Spring load and deformation of the ratio known as spring stiffness, the greater the stiffness, the stiffer the spring. Spring is a widely used in the mechanical and electronic industries, a kind of elastic element, the spring in the loaded can produce a large elastic deformation, the mechanical work or kinetic energy into deformation energy, and unloading the spring deformation disappears and return to the original state, the deformation energy into mechanical work or kinetic energy.

(5) Measurement function We know that, within the limits of elasticity, the elongation (or contraction) of the spring is proportional to the external force. The use of this property of the spring made of spring scales.

(6) tight function Observe a variety of electrical switches will find that the two contacts of the switch, there must be an outlet equipped with springs to ensure that the two outlets are in close contact, is good conductivity. If the contact is poor, the resistance of the contact becomes larger, the heat generated when the current passes through becomes larger, and in serious cases, the metal at the contact will melt. Bayonet head of the two metal posts are equipped with a spring is also to contact good; 

As for the screw head of the center of the metal piece and all sockets connected to the metal piece are reeds, its function is to make both sides of the close contact, to keep to the same good. In cassette tapes, there is a phosphor bronze reed, the use of its bending deformation when the elastic force generated by the magnetic head and the tape in close contact. In the stapling machine has a long spiral spring its role on the one hand is the top of the staple, on the other hand, when the front of the nail is launched, you can send the back of the nail to the front to prepare for the nail comfort launched, so that it can automatically push a nail to the front, until the nail is launched all the time. Many machines automatically feed, automatic rifles in the automatic loading of bullets are relying on this function of the spring. In addition, such as the clip on the clothes, ballpoint pen, fountain pen set on the clip piece are utilizing the spring's tightening function to clip on the clothes. Torsion Spring and Circlip Series

(7) Reset Function A spring deforms under the action of an external force, and when the force is withdrawn, the spring returns to its original state. Many tools and equipment utilize this property of the spring to reset. For example, the hinges of the doors of many buildings are equipped with reset springs that automatically reset the doors after people enter or leave. People also use this feature made of automatic umbrellas, automatic pencils and other supplies, very convenient. In addition, a variety of buttons and keys are also indispensable reset spring.

(8) drive function Mechanical clocks and watches, wind-up toys are driven by tightening the clockwork. When the clockwork is tightened, the clockwork produces bending deformation and stores a certain amount of elastic potential energy. After release, the elastic potential energy into kinetic energy, through the transmission device to drive the rotation. In the toy gun and hairpin gun and military firearms is also one of the nature of the use of spring work.

(9) cushioning function in the locomotive car frame and wheels are equipped with springs, the use of spring elasticity to slow down the vehicle bumps. Vibrating sound function When air flows from the reed hole in a harmonica or accordion, it strikes the reed, and the reed vibrates to make a sound.