A kind of composite material spring and its manufacturing method

Abstract

The present invention relates to a composite material spring, in particular to an ultra-light composite material curved rod structure spring and its manufacturing method, which is characterized in that the spring structure includes upper and lower panels and spring wires, and the side of the panel facing the spring wires has a The hole or groove where the spring wire is inserted to play a fixed role; the spring wire material is a continuous fiber composite material, and the spring wire has a "C"-shaped thin rod structure, including a straight section and a curved section along the length direction, and both ends are straight section, the middle part is a curved section, the function of the curved section is to deform and provide reaction force, the extension direction of the straight sections at both ends is the same as the fiber length direction of the spring wire, and the number of spring wires in the spring is greater than 3. The bearing direction of the composite material spring of the invention is basically the same as the fiber direction of the spring wire, fully utilizes the bearing capacity of the fiber, improves the load utilization rate of the material, and can greatly reduce the weight of the spring.

Description

technical field [0001] The invention relates to the field of composite material springs and the manufacture thereof, in particular to a composite material spring with an ultra-light non-helical structure in the shape of a bent rod and a manufacturing method thereof. Background technique [0002] At present, new energy, national defense, chemical industry, aerospace, semiconductor and other cutting-edge special fields have increasingly stringent requirements on the performance of springs. Metal springs have poor corrosion resistance and require anti-corrosion treatment and regular maintenance. The service life is seriously affected. Compared with metal springs, composite material springs have the advantages of light specific gravity, high modulus, high specific strength, and corrosion resistance. Most of the composite material springs that have appeared are helical springs or leaf springs. The fiber direction of these types of springs is not the same or close to the direction...

AI Technical Summary

Problems solved by technology

Metal springs have poor corrosion resistance and require anti-corrosion treatment and regular maintenance. The service life is seriously affected. Compared with metal springs, composite material springs have the advantages of light specific gravity, high modulus, high specific strength, and corrosion resistance. Most of the composite material springs that have appeared are helical springs or leaf springs. The fiber direction of these types of springs is not the same or close to the direction of the force, and the high load-bearing capacity in the fiber direction of the composite material cannot be fully utilized, resulting in self-weight Heavy weight, unable to meet the growing demand for ultra-light components in the aerospace industry

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