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Miter Gearbox Requirements For Transmission

Sijie Industrial Co.,Ltd | Updated: May 25, 2017

Miter Gearbox Small inclination gear box with variable thickness helical gear drive, Miter Gearbox the main characteristic is that the deflection coefficient of each axial section tooth profile changes along the gear axis, which makes the variable thickness helical gears meet the requirements of the transmission between the intersecting shaft and the staggered shaft in the small inclination gear box. Miter Gearbox In this paper, the meshing principle, Miter Gearbox fatigue life evaluation theory and dynamic contact analysis method are used to study the tooth surface creation method of involute and non involute gears, and the meshing performance and fatigue life of different tooth profile variable thickness helical gear pair are analyzed. The relevant research has important theoretical significance and engineering application value for choosing the parameters of variable thickness gears rationally, Miter Gearbox improving the bearing capacity of small inclination gear box and prolonging the service life of gearbox. The main research work of this paper is as follows: Shan using the tooth profile equation of the shape-producing rack to form the face tooth profile equation, deduce the coordinate transformation matrix of the involute variable thickness helical gear simulating machining based on the imaginary tool end surface tooth profile, the tooth surface equation of involute variable thickness helical gears is established, Miter Gearbox the assembly relation of involute variable thickness helical gear pair is determined according to the meshing principle of space cone gear, and the assembly model of involute variable thickness helical gear pair is constructed with UG software. The meshing equation of involute and non involute variable-thickness helical gears is established by using involute variable-thickness helical gears as Shan machining tool. The tooth surface equation of the non involute variable thickness helical gears is solved, and the model of the non involute variable thickness helical gears is constructed by using UG software, which is based on the assembly relation between the involute variable thickness helical gears and the assembling model of the non involute variable thickness helical gears. Shan in Dyna software, Miter Gearbox the grid discretization of the two kinds of variable-thickness helical gears is generate contact finite element model; Through the dynamic contact finite element simulation analysis, the paper obtains the stress cloud picture of two kinds of variable thickness helical gear pair and the time course curve of tooth contact force and maximum tooth surface, Miter Gearbox and analyzes the influence of tooth profile shape on the dynamic meshing performance of variable-thickness helical gear pair. Shan The dynamic contact force of the gear pair running process is the load spectrum of fatigue analysis, Miter Gearbox based on GL specification to calculate the N-S curve of gear material, Miter Gearbox combined with the stress and strain results obtained by static analysis of gear pair, the fatigue life of two kinds of variable-thickness helical gears was analyzed by using Ansys Fe software, and the logarithmic fatigue life and fatigue safety factor of different tooth profile variable thickness helical gears were obtained.

Helical gears are used to transfer motion between parallel axes. Tilt angle each gear is the same, but one must be right-handed, and the other must be a left-angled tooth. The shape of the tooth is an involute spiral surface. If a piece of paper that is cut into a parallelogram (rectangular) is enclosed in a gear cylinder, the edges of the corners of the tooth are printed on the paper. If I unfold this piece of paper, an involute curve occurs at every point in the edge of the blood angle.


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