In a direction that * small stiffness in the plane is easy to bend, but in the other direction has great tensile stiffness and bending stiffness.
Leaf
spring in our life to play the role of a big or small, with different purposes with different shape and structure, according to the shape, can be divided into straight piece of spring and spring, and according to the shape of the spring piece board piece into spring running time square, trapezoid, triangle and stage, etc. ;
Its working principle is to use a characteristics of leaf spring, the spring leaf easily bend in one direction only, and on the other side has a relatively large tensile force and bending force.
Will tell from the design thought, spring leaf (
Also called spring washer)
Has the pretension, after being compressed, after the rebound.
In actual use, because the thread has the characteristics of the nut after tighten, easily along the spiral direction, cause the nut is loose.
Leaf spring manufacturing materials in general should have high elastic limit, fatigue limit, impact toughness and good heat treatment performance, such as commonly used with carbon steel, shrapnel steel alloy, stainless steel shrapnel shrapnel and copper alloy, nickel alloy and rubber, etc.
Shrapnel of manufacturing methods of cold rolled and hot rolled method.
Shrapnel silk with cold volume method is generally less than 8 mm in diameter, with hot volume method is greater than 8 mm.
Some shrapnel after made to crush or shot peening treatment, can improve the bearing capacity of the shrapnel.
According the characteristic of materials applied in different environment work mechanism, the leaf spring is widely used in all kinds of contact device, and with more shape of * * simple straight cantilever plate spring.
Contact resistance must be small, therefore made of bronze.
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