Results 91 to 100 of about 184,624 (121)
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Grinding of highly accurate hourglass worm gears — trial manufacture of the worm grinding device
Precision Engineering, 1990Abstract Highly accurate worm gears can be effectively used as an angle standard. Wildhaber worm gearing is a kind of hourglass worm gearing, which owing to its geometrical simplicity, can have its worm and worm wheel easily finished and accurately measured. This study describes a precision grinding method of the Wildhaber worm. A hobbing machine can
T. Oiwa, K. Kobayashi, A Toyama
exaly +2 more sources
Mathematical model and worm wheel tooth working surfaces of the ZN-type hourglass worm gear set
Mechanism and Machine Theory, 2009zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chung-Biau Tsay, Kuan-Yu Chen
exaly +2 more sources
Study on multi-body dynamics of roller enveloping hourglass worm gear
Fourth International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024)Shuangcen Li, Chenxu Duan
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A Study on Hourglass Worm Gearing With Developable Tooth Surfaces
Journal of Mechanical Design, 1978The authors developed a new type of hourglass worm gearing based on the authors’ own theories [1, 2]. The worm having the developable tooth surface can be ground precisely. The pair of the tooth surfaces of the gearing have comparatively small relative curvature and contact with each other with the contact line lying perpendicularly to the relative ...
T. Sakai +3 more
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A Study on Hourglass Worm Gearing with Constant Slide-Roll Ratio
Journal of Mechanical Design, 1979A new type of hourglass worm gearing is developed by the authors’ own theories [1], [2]. This hourlgass worm gearing has the good points of Hindley’s one and also covers the weak points of it. The worm is cut by a tool with straight-lined cutting edge which is fixed to the basic member [1].
T. Sakai, M. Maki, H. Tamura
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Principle and Practice of the Measurement for Hourglass Worms and Hobs
Applied Mechanics and Materials, 2017 Compared with cylindrical worm gears, hourglass worm gears have better transmission performance. The measurement of the hourglass worms and the hobs is a critical issue to restrict the application of the hourglass worm gear transmission.
Lin Tao Zhang, Zhao Yao Shi
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6th International Power Transmission and Gearing Conference: Advancing Power Transmission Into the 21st Century, 1992
Abstract For moderating the edge contact of gear tooth surfaces on load, a new concept has been proposed on designing worm gearing. As a first step of research, restricting a field of application of the designing concept, a few methods for generating tooth surface of hourglass worm gearing having a small lead angle have been devised.
Hiroshi Gunbara +3 more
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Abstract For moderating the edge contact of gear tooth surfaces on load, a new concept has been proposed on designing worm gearing. As a first step of research, restricting a field of application of the designing concept, a few methods for generating tooth surface of hourglass worm gearing having a small lead angle have been devised.
Hiroshi Gunbara +3 more
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A Novel Error Detection and Compensation Method of Hourglass Worm Gear Hob
Volume 3: Design, Materials and Manufacturing, Parts A, B, and C, 2012The double enveloping hourglass worm gear pair is a type of transmission, which has many traits, such as more teeth in mesh for transmission, higher contact quality, better lubrication condition and so on. Therefore, it has higher efficiency of transmission, stronger bearing capacity and longer work life.
Q. Y. Shu, Q. Y. Qiu, P. E. Feng, L. Cao
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Design and Assessment of an Antibacklash Single Roller Enveloping Hourglass Worm Gear
SAE Technical Paper Series, 2019<div class="section abstract"><div class="htmlview paragraph">A theoretical and experimental analysis is conducted to study the influences of key design parameters on the backlash of the roller enveloping hourglass worm gear. Two equations, the gear engagement equation and the tooth profile equation have been derived and represented in ...
Xingqiao Deng, Yucheng Liu, Ge He
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Error-sensitivity analysis of hourglass worm gearing with spherical meshing elements
Mechanism and Machine Theory, 2013Abstract This paper aims to study the influence of tooth errors and shaft misalignments on the tooth contact in hourglass worm gearing with spherical meshing elements. The geometries of the worm and worm-gear tooth surfaces are described, and the distribution characteristic of contact lines is explored.
Houjun Chen +5 more
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