Results 61 to 70 of about 3,295 (237)
New generation methods for spur, helical, and spiral-bevel gears [PDF]
New methods for generating spur, helical, and spiral-bevel gears are proposed. These methods provide the gears with conjugate gear tooth surfaces, localized bearing contact, and reduced sensitivity to gear misalignment.
Coy, J. J. +4 more
core +1 more source
The Comparison of Straight Tooth Bevel Gear and Spiral Bevel Gear about the Stress of Gear Tooth
Instrumentation and Equipments, 2016 大型的数控龙门加工中心中，卧式主轴头通过一对直齿圆锥齿轮副来作为相交轴的传动部件。其加工中心在高速运转时，直齿圆锥齿轮副会发出大的噪声和冲击，导致加工中心的加工质量和精度下降。为了解决这一问题，提出采用弧齿圆锥轮副代替直齿圆锥齿轮副。基于ANSYS Workbench软件，分析直齿圆锥齿轮副与弧齿圆锥齿轮副的齿跟弯曲应力和齿面接触应力的状况，在此基础上，得出弧齿圆锥齿轮副在传动过程中其轮齿的综合力学性能要优越于直齿圆锥齿轮副相应的轮齿性能。这使得数控龙门加工中心可回转式卧式主轴头在更换前70分贝的噪声降至到60分贝，噪声得到了显著的降低。 In the large CNC gantry machining center, through a pair of straight bevel gear ...
openaire +1 more source
Research of the Fast Modeling for Spiral Bevel Gear with Spherical Involute based on the SWEEP
Jixie chuandong, 2015 The parametric modeling of spiral bevel gear is of great significance to its further research on tooth contact analysis in its digitized design.From the precision of spiral bevel gear tooth with spherical involute tooth profile,the principle of forming ...
Li Tongzhong +2 more
doaj
Low-noise, high-strength, spiral-bevel gears for helicopter transmissions [PDF]
Improvements in spiral-bevel gear design were investigated to support the Army/NASA Advanced Rotorcraft Transmission program. Program objectives were to reduce weight by 25 percent, reduce noise by 10 dB, and increase life to 5000 hr mean-time-between ...
Handschuh, Robert F. +3 more
core +1 more source
Mathematical models for the synthesis and optimization of spiral bevel gear tooth surfaces [PDF]
The geometry of spiral bevel gears and to their rational design are studied. The nonconjugate tooth surfaces of spiral bevel gears are, in theory, replaced (or approximated) by conjugated tooth surfaces.
Goldrich, R. N. +2 more
core +1 more source
TRANSMISSION ERROR OF THE SPIRAL BEVEL GEARS [PDF]
Engineering Mechanics ...., 2020 Z. Fraňová, K. Řehák, A. Prokop
openaire +1 more source
Fenmo yejin jishuAs a new type of bevel gear, the equal-distance spiral bevel gear is suitable for the mass production by metal powder injection molding (MIM) due to the characteristic as the normal equal-distance of spiral tooth surface.
LIU Ganhua, TANG Naifu, WANG Qi
doaj +1 more source
Maximum life spiral bevel reduction design [PDF]
Optimization is applied to the design of a spiral bevel gear reduction for maximum life at a given size. A modified feasible directions search algorithm permits a wide variety of inequality constraints and exact design requirements to be met with low ...
Coe, H. H., Prasanna, M. G., Savage, M.
core +1 more source
Jixie chuandong, 2014 The gear and pinion gear of spiral bevel gears are usually milled with the one facemilling cutter,it means the gear cutter and the pinion cutter have the same cutter number.In the process of tooth milling,the cutter axis is set perpendicular to tooth ...
张华 +4 more
doaj
Jixie chuandong, 2001 To counter complexity of spiral bevel gear geometry, this paper presents a mathematical model for calculating the steady bulk temperature field of spiral bevel gears based on the thermal transferring theory. Firstly, the mesh generation of finite element
沈允文 +4 more
doaj