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Pressure angle

About: Pressure angle is a research topic. Over the lifetime, 1373 publications have been published within this topic receiving 10245 citations. The topic is also known as: angle of obliquity.


Papers
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Patent
19 Mar 2019
TL;DR: In this paper, a novel bi-arc harmonic profile of tooth, flexbile gear external tooth and steel wheel internal tooth including intermeshing, the profile of the tooth of the external tooth is convex, and the profiles of the internal tooth and external tooth are different from traditional involute profile.
Abstract: The utility model discloses a novel bi -arc harmonic profile of tooth, flexbile gear external tooth and steel wheel internal tooth including intermeshing, the profile of tooth of flexbile gear external tooth is convex, the profile of tooth and the flexbile gear external tooth profile of tooth conjugation of steel wheel internal tooth, the modulus of flexbile gear external tooth and steel wheel internal tooth is 0.2697, and the pressure angle is 21.75, the number of teeth of flexbile gear external tooth is 160, the number of teeth 162 of steel wheel internal tooth. The utility model discloses abi -arc profile of tooth is different from traditional involute profile, bi -arc for the profile of tooth circular arc section substitute and gradually burst at the seams, in addition also revise theoperation to the tooth top for whole flank profil is more smooth, and the carrying capacity of tooth is also stronger.

1 citations

Journal Article
Chang Le-ha1
TL;DR: In this article, a transverse-rotational coupled dynamic model for a spur gear pair was built considering excitations of time-varying mesh stiffness, gear error and meshing impact.
Abstract: Taking the error distribution of tooth surface into account,the mesh stiffness and composite meshing error were calculated based on a loaded tooth contact analysis model. The transverse-rotational coupled dynamic model for a spur gear pair was built considering excitations of time-varying mesh stiffness,gear error and meshing impact. Then,the effects of different tooth profile deviations( convex profile,concave profile,positive pressure angle errors and negative pressure angle errors) on the system vibration were investigated. The results showed that the concave profile always produces the largest dynamic load,and the profile with negative pressure angle errors for a driven gear brings a little smaller vibration than the concave profile does; under most load conditions,the positive pressure angle errors bring a smaller vibration than the negative ones do and the convex profile produces a smaller dynamic load than the ideal profile does. The results provided effective references for establishing the control principles of gear machining errors.

1 citations

Journal Article
TL;DR: In this paper, a profile slotting cutter was used to achieve modify involute cylindrical gear wheel, the modification curve was broken down into sub-involute, and the corresponding modify pressure angle was calculated out.
Abstract: Profile slotting cutter used to achieve modify involute cylindrical gear wheel.Introduced the design of formulation method of K diagram of profile modification,the modification curve broken down into sub-involute,therefore the corresponding modify pressure angle of slotting cutter was calculated out.In view of modification values on the basis of the trial is the dynamic adjustable,using generating simulation to test the adaptability of default pitch circle radius and modification values studied,achieved the adaptive design of profile modification slotting cutter.

1 citations

Patent
07 May 2014
TL;DR: In this article, an excavator bucket tooth with concave and convex circular arc curved surfaces is shown to have a constant working surface and the positive pressure remains the same, and accordingly the fracture failure caused by the too large positive pressure can be effectively avoided and the contact area of the bucket tooth and the materials is reduced.
Abstract: The utility model discloses an excavator bucket tooth Concave and convex circular arc curved surfaces are distributed on the front side, the back side and two lateral sides of the excavator bucket tooth from a tooth tip upward to the middle section; envelope curves of the concave and convex circular arc curved surfaces are logarithmic spiral lines; poles of the logarithmic spiral lines formed on the front side and the back side are formed in the center of a hinged hole of an excavator bucket According to the excavator bucket tooth, the pressure angle of materials and the working surface of the bucket tooth can be constant due to introduction of the logarithmic spiral lines, the positive pressure of the bucket tooth remains the same, and accordingly the fracture failure caused by the too large positive pressure can be effectively avoided and the contact area of the bucket tooth and the materials is reduced due to the concave and convex circular arc curved surfaces and accordingly the service life of the bucket tooth can be effectively extended and the excavation efficiency can be improved

1 citations

Journal Article
TL;DR: In this article, the authors deduced the contact ratio of the cosine gear drive based on the mathematical models of the drive, and the influence of related design parameters on the contact ratios were discussed.
Abstract: Based on the mathematical models of the cosine gear drive,the calculation approach of the contact ratio of the drive was deduced,and the influences of related design parameters on the contact ratio were discussed.The results show that the contact ratio of the cosine gear drive increases with the increase of the teeth number and the modulus,but decreases with the increase of the pressure angle of the pitch circle,under the same parameters condition,the contact ratio of the drive is obvious greater than that of the involute gear drive.5figs.,12refs.

1 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202313
202244
202127
202038
201960
201841