Rotating shaft with stress distribution function

Abstract

The invention discloses a rotating shaft with a stress distribution function. The rotating shaft is provided with a shaft barrel and a mandrel. The shaft barrel is provided with a base part. A pressing part is bent on one side of the base plate, and is positioned above the base part. An accommodation space is formed between the base part and the pressing part. A slot is formed between the base part and the tail end of the pressing part. A first side edge and a second side edge are arranged on the two sides of the pressing part respectively, so that the width of the pressing part is gradually increased from the tail end to a part close to the base part. The mandrel is accommodated in the accommodation space of the shaft barrel. A positioning part is arranged on the edge of the mandrel, is used for positioning the base part of the shaft barrel, and can drive the displacement of the pressing part of the shaft barrel towards a part away from the base part when rotating to release the positioning of the base part, and the pressing part with the gradually increased width can share stress generated by the displacement deformation.

Description

Technical field [0001] A rotating shaft with stress distribution, especially a rotating shaft with stress distribution that can extend the overall service life of the rotating shaft. Background technique [0002] There are many items in daily life that use hinge devices, such as notebook computers, electronic dictionaries, personal digital electronic secretaries (PDA), and two-page electronic products, etc., which must use hinge devices to achieve the function of flipping switches. However, some Articles need a hinge device with a "positioning and closing" function to be suitable for installation and use. Therefore, the creator of this case has developed a hinge device with "positioning and closing" after continuous research and trial work. Please refer to Figure 9 to Figure 11 As shown in the figure, it can be seen that the shaft device of the known technology has a shaft tube A and a mandrel B. The shaft tube A has a base A1. One side of the base A1 is bent with an extension A2,...

AI Technical Summary

Problems solved by technology

[0002] There are many items in life that use hinge devices, such as notebook computers, electronic dictionaries, personal digital electronic secretaries (PDAs) and double-page electronic products, all of which must use hinge devices to achieve the function of flipping switches. However, some Items need a hinge device with the function of "positioning closure" to be suitable for installation and use. Therefore, the creator of this case has developed a hinge device with "positioning closure" after continuous research and trial production. Please refer to Figure 9 to Figure 11 As shown, it can be seen from the figure that the rotating shaft device in the known technology has a shaft cylinder A and a mandrel B, the shaft cylinder A has a base A1, an extension part A2 is bent on one side of the base part A1, and the end of the extension part A2 is bent There is a curved pressing portion A3, the pressing portion A3 is located on the upper side of the base A1, and the mandrel B is pierced through the shaft barrel A, and the side of the mandrel B has a positioning surface B1 that can be positioned with the base A1, And when the mandrel B rotates to make the positioning surface B1 separate from the base A1, the mandrel B will push the pressing part A3 to form elastic deformation. Since the end of the pressing part A3 is equal in width between the two ends close to the extension part A2, therefore When the upper edge of the mandrel B pushes the pressing part A3, the tangent between the pressing part A3 and the upper edge of the mandrel B will produce elastic deformation near the side of the extension part A2, and the stress generated by the elastic deformation will concentrate on the pressing Part A3 is connected to the extension part A2, and when the rotating shaft device is used for a long time, it is easy to cause breakage at the contact part A3 of the shaft cylinder A and the connection with the extension part A2

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