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Composite cylindrical part and metal flange connecting structural part and preparation method thereof

A composite material and connection structure technology, applied in the direction of connecting components, flange connection, material gluing, etc., can solve the problems of low stress concentration of glued joints, weakening the advantages of composite materials, and poor environmental resistance, so as to reduce curing stress and improve The effect of carrying capacity and improving connection strength

Pending Publication Date: 2020-04-24
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bonded joints have low stress concentration, good connection strength and fatigue performance, but low reliability and poor environmental resistance
Hybrid connection takes advantage of the advantages of the two connection methods, but also inherits its disadvantages, which weakens the advantages brought by the use of composite materials to a certain extent

Method used

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  • Composite cylindrical part and metal flange connecting structural part and preparation method thereof
  • Composite cylindrical part and metal flange connecting structural part and preparation method thereof

Examples

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Effect test

Embodiment 1

[0033] This embodiment relates to a composite material cylindrical part and a metal flange connection structure, such as figure 1 As shown, the composite material cylindrical part 1 and the metal flange 2 are bonded as a whole, and there are several grooves 3 on the surface of the metal flange shaft where the metal flange 2 and the composite material cylindrical part 1 are attached. In addition, the composite cylindrical part is obtained by applying fiber winding technology to the outer surface of the metal flange shaft and solidifying it. The specific processing is as follows:

[0034] 1. Metal flange processing and treatment

[0035] (1) Design and process the aluminum alloy flange of grade 7075. The inner diameter of the flange shaft section is 80mm, the outer diameter is 100mm, and the length is 30mm. The diameter of the flange is 200mm and the thickness is 10mm. 6 round holes with a diameter of 10 mm are evenly distributed in the circumferential direction, and the dista...

Embodiment 2

[0049]This embodiment relates to a composite material cylindrical part and a metal flange connection structure, such as figure 1 As shown, the composite material cylindrical part 1 and the metal flange 2 are bonded as a whole, and there are several grooves 3 on the surface of the metal flange shaft where the metal flange 2 and the composite material cylindrical part 1 are attached. In addition, the composite cylindrical part is obtained by applying fiber winding technology to the outer surface of the metal flange shaft and solidifying it. The specific processing is as follows:

[0050] 1. Metal flange processing and treatment

[0051] (1) Design and process a titanium alloy flange with the grade Ti6Al4V. The inner diameter of the flange shaft section is 40mm, the outer diameter is 45mm, and the length is 20mm. The diameter of the flange is 100mm and the thickness is 5mm. 8 circular holes with a diameter of 5 mm are evenly distributed in the circumferential direction, and the...

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Abstract

The invention relates to a composite cylindrical part and metal flange connecting structural part and a preparation method thereof. In the structural part, a composite cylindrical part and a metal flange are bonded together. The surface, attached to the composite cylindrical part, of the metal flange is provided with a plurality of grooves. The method comprises the steps of machining and treatmentof the metal flange, winding forming of the composite cylindrical part, and integrated solidification of the composite cylindrical part and the metal flange. Compared with the prior art, the composite cylindrical part and metal flange connecting structural part provided by the invention has higher strength, longer service life and higher inherent frequency, can rapidly attenuate possible vibration and can be applied to transmission shafts of cars, helicopters and ships having higher requirements for weight, performance and transmission efficiency.

Description

technical field [0001] The invention belongs to the technical field of connection between composite materials and metal structures, and in particular relates to a structural part for connecting a composite material cylindrical part and a metal flange and a preparation method thereof. Background technique [0002] As a part of the power transmission system, the drive shaft is widely used in equipment such as automobiles, ships, and helicopters. It is responsible for transmitting the energy of the power source (engine, motor, etc.) to the power output device (wheels, propellers, rotors, etc.). The transmission shaft has a heavy workload, high speed, and bears alternating torsional, bending, and torsional-bending coupling vibration loads. Its performance directly affects the performance and safety of the helicopter. In order to achieve high transmission efficiency and high reliability of the transmission system, the design requirements of the transmission shaft include: 1) high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B11/00F16D1/00
CPCF16B11/006F16D1/00F16B2200/50
Inventor 刘龙权
Owner SHANGHAI JIAO TONG UNIV