The torsion sheet analysis and design torque calculation formula of a laptop hinge mechanism

• Main Authors: DUAN, FU-YUAN, 段富元
• Other Authors: CHUANG, HO-CHIAO
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/cun4um

碩士 === 國立臺北科技大學 === 製造科技研究所 === 107 === The notebook pivot mechanism is a combination of several torsion plates, pivots, fixing plates, support frames and nuts. The main core of the pivotal structure is that the torsion piece and the pivot are interference fit, and the frictional force of the inner hole and the pivotal contact surface of the torsion piece is generated by the rotation. The main research direction of this thesis is that the axial hole interference formula combined with the torsion formula is the main axis. By using the torque test as the verification method, a set of torsion empirical formula system is finally established. In this study, for the analysis of torsion film, the SolidWorks 2017 Simulation system is used to analyze the displacement and the axis hole interference formula to input relevant parameters, and the error comparison is used to improve the reliability. Since the actual torsion piece opening is 60 degrees, it is necessary to analyze the displacement state of each opening angle by analysis and replace the pressure caused by the same displacement, and then multiply the pressure value of each angle with the pressure value without the opening angle. In order to use the formula, it can be converted into a torque or pressure value at the required angle. Torque sheets of different materials are used to match the pivots of the same material. By combining the change of the interference amount and the number of different torsion pieces, the torque test is performed to compare the measured data with the torsion empirical formula. Finally, a set of torsion empirical formula system is established. The system can be used to input the required design parameters to obtain the torque value as a reference, so as to achieve the effect of quickly selecting design parameters.