Results 211 to 220 of about 3,531 (255)
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1987
In this chapter we will describe the geometry, first of a helical gear meshed with a rack, and then of a pair of helical gears, and in each case we will determine what conditions must be satisfied for correct meshing. We will also discuss how the contact ratio of a pair of helical gears differs from that of a pair of spur gears, and we will show that ...
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In this chapter we will describe the geometry, first of a helical gear meshed with a rack, and then of a pair of helical gears, and in each case we will determine what conditions must be satisfied for correct meshing. We will also discuss how the contact ratio of a pair of helical gears differs from that of a pair of spur gears, and we will show that ...
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Thermal deformation of helical gears
SPIE Proceedings, 2010The analytical equation for the thermal field of a helical gear under normal working condition in a stable thermal field is established using mathematical physics, and the thermal deformation of the gear can be computed using this equation. The variations of gear geometric parameters, such as radial dimension, tooth depth, spiral angle, pressure angle,
Yong Zhang, Ye-tai Fei, Shan-lin Liu
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Manufacturing of Spur Gears, Helical Gears, and Splines
SAE Technical Paper Series, 1968<div class="htmlview paragraph">This paper describes and illustrates some of the manufacturing techniques being used to produce steel spur gears, helical gears, and splines. Applications of these techniques and their suitability based upon the end use of the product are also indicated.</div> <div class="htmlview paragraph">The paper ...
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The Kinematics of Crossed Helical Gears
Journal of Mechanical Design, 1982A study is made of the motion of crossed helical gears. Exact expressions are derived for the position of the contact point on each gear and for the sliding velocity, both as functions of gear position. It is shown how to calculate the angular positions of each gear at the beginning and end of contact, and hence the contact ratio.
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1987
In this chapter we will describe the meshing geometry of a pair of helical gears, when their axes are not parallel. Each gear of the pair is an ordinary helical gear, of the type described in Chapter 13. We proved in Chapter 14 that, when two helical gears are mounted on parallel shafts, they must have helix angles ψs that are equal and opposite.
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In this chapter we will describe the meshing geometry of a pair of helical gears, when their axes are not parallel. Each gear of the pair is an ordinary helical gear, of the type described in Chapter 13. We proved in Chapter 14 that, when two helical gears are mounted on parallel shafts, they must have helix angles ψs that are equal and opposite.
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Fine Blanking of Helical Gears
2015Fine blanking is a well-established process for the production of near net shape components with high quality. The produced parts are characterized by a smooth sheared edge up to 100 %, excellent surface properties with good flatness and little burr as well as close tolerances for near net shape manufacturing. These process characteristics are suitable
Andreas Feuerhack +3 more
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Noise of Involute Helical Gears
Journal of Engineering for Industry, 1969The problem of involute helical gear noise is studied by running a pair of 6 DP gears in a power circulating rig inside an anechoic room. More than 3500 magnetic tape recordings were taken and analyzed, for gears running at different speeds and transmitting different loads.
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Reduction of vibration in helical gearing
Journal of Machinery Manufacture and Reliability, 2011A method of mathematical modeling of the excitation of vibrations in the gear mesh of double helical gear and ways to reduce vibration in helical gearing are proposed.
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