scispace - formally typeset
Search or ask a question
Topic

Gear shaping

About: Gear shaping is a research topic. Over the lifetime, 598 publications have been published within this topic receiving 1880 citations.


Papers
More filters
Patent
02 Oct 2013
TL;DR: In this article, a machining technology for improving the machining precision of the internal teeth of a carburized and quenched gear was proposed, which comprises pre-machining, heat treatment and finish machining.
Abstract: The invention relates to a machining technology of forms of gear teeth, namely a technology for improving tooth profile machining precision of internal teeth of a carburized and quenched gear. The technology comprises pre-machining, heat treatment and finish machining. According to the technology, a gear shaping cutter is polished properly during pre-machining, common normal line allowance for finish of the internal tooth profile is reserved, further finish machining is carried out on the gear after heat treatment, and therefore the machining precision of the gear is effectively improved, and overall mechanical property of the gear is improved.

6 citations

Patent
09 Apr 2014
TL;DR: In this paper, a multilayer gear shaping type friction generator, comprising an upper friction surface, a lower friction surface and a connecting piece, is presented. And the generator can generate power by pressure, pulling forces and vibration.
Abstract: The utility model discloses a multilayer gear shaping type friction generator, comprising an upper friction surface, a lower friction surface and a connecting piece, wherein the upper friction surface is positioned at the upper part of the generator and comprises a first insulation layer, and one surface of the first insulation layer is plated with a first conducting layer; the lower friction surface is positioned at the lower part of the generator and comprises a second conducting layer or a third insulation layer plated with a third conducting layer at one surface; the first insulation layer and a second conducting friction layer/ the third insulation layer are tooth-shaped, intercrossed and engaged with each other; and the upper friction surface and the lower friction surface are connected together through the connecting piece. The multilayer gear shaping type friction generator can generate power by pressure, pulling forces and vibration. In the same spatial structure, the multilayer gear shaping type friction generator enables the friction area to increase by several times, and the power output and the current output of the generator are improved. A gear shaping type structure enables the multilayer gear shaping type friction generator to have output with minor pressure and vibration.

6 citations

Journal ArticleDOI
TL;DR: In this article, a kinematic modified roll motion for generating a shaping cutter is proposed to minimize the twisted profile errors even after cutter resharpening, based on the error map and its sensitivity matrix.
Abstract: The tooth profile error of a gear shaping cutter made by the lengthwise-reciprocating grinding process (LRGP) is usually corrected by modifying the grinding wheel profile. However, such grinding wheel modification cannot eliminate the twisting profile error along the face of the shaping cutter. A kinematic modified roll motion for generating a shaping cutter is proposed to minimize such twisted profile errors even after cutter resharpening. The tooth profile errors of the work gears generated by the shaping cutter with various resharpening depths are represented as a novel topographic error map. Based on the error map and its sensitivity matrix, the roll ratio between the shaping cutter and the grinding wheel stroke is modified to reduce the twisted profile error as illustrated by the numerical examples. Combining this modified roll motion modification and the grinding wheel profile correction, the high accuracy resharpening depth of the LRGP helical shaping cutter is increased.

6 citations

Journal ArticleDOI
TL;DR: In this article, the authors deduce the corresponding pure rolling mathematical model based on the pure rolling contact theory that cylindrical gear and non-circular gear mesh in the end face, and realize the CAD modeling of noncircular straight and helical gears.
Abstract: Elliptic family gears are commonly used in non-circular gears, which include elliptic gear, high-order gear, elliptic deformed gear and high-order deformed gear, thereinto high-order deformed gear can include the elliptic family gears through adjust its order and deformed coefficient. Because non-circular gear has different tooth profile in different position of pitch curve and there is difference in the left and right tooth profile of the same gear tooth, thus the CAD modeling of non-circular gear is difficult for these characteristics; but the precise model of non-circular gear has important significance to the realization of numerical control machining, kinematic simulation and relevant mechanical analysis. This paper deduce the corresponding pure rolling mathematical model based on the pure rolling contact theory that cylindrical gear and non-circular gear mesh in the end face, and realize the CAD modeling of non-circular straight and helical gears by letting the cylindrical gear and non-circular gear make solid geometry operation, which is suitable for pitch curve with convex and concave. The non-circular gear shaping methods with equal polar and equal arc length are simulated by setting different discrete polar angles, and the transmission ratio curve and the angular acceleration curve of driven gear are get through the kinematic simulation of gear pair, which realize the transmission performance analysis of elliptic family gear pair. The above research results can be applied to the modeling and kinematic performance analysis of other non-circular gears.

6 citations


Network Information
Related Topics (5)
Machining
121.3K papers, 1M citations
73% related
Machine tool
39.9K papers, 266K citations
72% related
Mechanism (engineering)
91.7K papers, 324.3K citations
70% related
Abrasive
29.2K papers, 265.7K citations
66% related
Residual stress
39K papers, 554.8K citations
64% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20215
202023
201946
201841
201751
201651