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Lightweight carbon fiber transmission shaft, connecting structure thereof and finished automobile

A transmission shaft and carbon fiber technology, which is applied in the direction of shafts, shafts and bearings, vehicle components, etc., can solve the problems of adverse effects of layout space and increased load of transmission shafts, etc.

Inactive Publication Date: 2021-01-22
DONGFENG OFF ROAD VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The static torsional damage test shows that the damaged part of the transmission shaft is basically in the middle of the carbon fiber shaft tube body. Usually, the middle pipe diameter is set to a larger value within a reasonable range, but it will inevitably increase the load on the transmission shaft itself, and it will Disadvantages of layout space

Method used

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  • Lightweight carbon fiber transmission shaft, connecting structure thereof and finished automobile
  • Lightweight carbon fiber transmission shaft, connecting structure thereof and finished automobile
  • Lightweight carbon fiber transmission shaft, connecting structure thereof and finished automobile

Examples

Experimental program
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Effect test

Embodiment 1

[0025]This embodiment discloses a lightweight carbon fiber transmission shaft, which includes a carbon fiber transmission shaft shaft 1, located at both ends of the carbon fiber transmission shaft shaft 1 in the longitudinal direction, and a slope expansion section 3 with a diameter from small to large, and a connection The metal connecting piece 4 of each slope expansion section 3, where, such asfigure 2 As shown, the diameter of the carbon fiber transmission shaft is 2A, and 2A is smaller thanfigure 1 In 2B, through CAE analysis, the size of A and B can be determined. Generally speaking, the difference between A and B should not be too large considering the lay-up angle of the carbon fiber shaft tube, generally not more than 30mm. It also includes n stepped transition sections 2 connected to the ramp expansion section 3 at one end and connected to the carbon fiber drive shaft shaft 1 at the other end. Each stepped transition section 2 includes a transition section 2.1 and a transi...

Embodiment 2

[0028]In this embodiment, on the basis of embodiment 1, the number of step transition sections n is selected to be 4, and the other structures remain the same as in embodiment 1.

Embodiment 3

[0030]This embodiment discloses the connection structure of the carbon fiber transmission shaft described in the above embodiment, which includes after more than one of the transmission shafts are connected as a whole, the metal connecting piece located at the tail end is connected to the transfer case or the drive axle, The metal connector on the other side of the tail end is connected to the transfer case or the drive shaft. Compared with the prior art, the structure of the carbon fiber transmission shaft designed by the present invention has changed, but the connection relationship between it and other parts of the vehicle body is not affected.

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Abstract

The invention discloses a lightweight carbon fiber transmission shaft, a connecting structure thereof and a finished automobile, and belongs to the technical field of automobile devices. The lightweight carbon fiber transmission shaft comprises a carbon fiber transmission shaft body, slope expansion sections located at the tail ends of the two ends of the carbon fiber transmission shaft body in the length direction, wherein the pipe diameters of the slope expansion sections are increased from small to large, metal connecting pieces connected with the slope expansion sections, and n stepped transition sections with one ends connected to the slope expansion sections and the other ends connected to the carbon fiber transmission shaft body; and each stepped transition section comprises a transition section I and a transition section II, an included angle between the transition section I and the carbon fiber transmission shaft body is theta, and the transition section II is parallel to thecarbon fiber transmission shaft body. On the premise that the rotating strength of the transmission shaft structure is met, light weight is achieved, the rotating diameter is smaller, and meanwhile the arrangement space of the transmission shaft on the finished automobile is increased.

Description

Technical field[0001]The invention relates to a structure of a carbon fiber transmission shaft, belonging to the technical field of automobile devices, in particular to a lightweight carbon fiber transmission shaft and a connection structure thereof and a complete vehicle.Background technique[0002]The drive shaft is an indispensable part of the automobile power system. The force of the automobile drive shaft is complex and bears large torque. During its development, a carbon fiber drive shaft appeared. Compared with the traditional drive shaft, the carbon fiber drive shaft has weight. It has the advantages of light weight, good bearing performance and long service life.[0003]The diameter of the connecting part of the ordinary carbon fiber transmission shaft tube and the metal part is generally larger than the diameter of other parts, and the middle part of the shaft tube usually adopts the same diameter shaft tube. The static torsion damage test shows that the damage part of the dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C3/02B60K17/22
CPCB60K17/22F16C3/02
Inventor 汪振晓李进伟盛威付邦璀谢锡春
Owner DONGFENG OFF ROAD VEHICLE CO LTD