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A kind of composite material spring and its manufacturing method

A composite material and manufacturing method technology, applied in high internal friction springs and other directions, can solve the problems of poor corrosion resistance of metal springs, heavy self-weight and use time, etc., to improve load utilization, reduce weight, excellent toughness and The effect of resilience

Active Publication Date: 2022-02-18
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • A kind of composite material spring and its manufacturing method
  • A kind of composite material spring and its manufacturing method
  • A kind of composite material spring and its manufacturing method

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Embodiment Construction

[0032] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] The prefabricated part of the first embodiment of the present invention is a composite material rectangular spring 101. The part 101 is divided into three parts: an upper panel 102, a lower panel 104, and a middle spring wire 103. The upper and lower panels 102, 104 have a size of 80× 80mm, thickness 1.5mm. Spring wire 103 total length is 38mm, and its up and down straight section 201 is long 2mm, and middle part curved section 202 is long 34mm, and spring wire 103 section is circular, and its diameter is 0.8mm, and the spacing between spring wire 103 and spring wire 103 is 7mm. The rectangular spring 101 in this embodiment has 12 rows of spring wires 103 in total, and there are 12 in one row. The odd-numbered row of spring wires 103 are uniformly bent to the right, and the even-numbered row of spring wires 103 are uniformly bent to the left. Th...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F3/10
CPCF16F3/10
Inventor 王晓旭石妍李睿龙罗晋吉
Owner TIANJIN POLYTECHNIC UNIV
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