2014年8月28日 · Involute gears are the most popular power transmission devices since characterized by a line of action with constant direction and pressure angle, a constant gear ratio for circular gears, even when the centre distance is changed and a rack with a straight tooth profile, which allows the gear cutting by rack-cutter generation. Supposing to know ...

2021年5月1日 · Together with the model described in [8], these reference algorithms will be used in a national software test for involute gear evaluations to be implemented into PTB’s TraCIM system (https://tracim.ptb.de, [12]). This software test service will provide independent test data sets for profile, helix and pitch deviations on involute gears.

2019年2月1日 · The treatment of gear deviations will be discussed in Part II of this article. Both parts are of fundamental importance for cylindrical involute gear evaluation software testing, which will soon be offered via an online validation service …

2019年5月1日 · The main goal of the mathematical approach described in this paper was to evaluate involute gear profile and helix deviations from the measured data without using any specialised gear measurement software. Measured data was obtained by coordinate CAD based measurement of an involute gear on coordinate measuring machine.

2017年11月1日 · Consequently, the profile of an involute gear can be created with the motion of the straight portion of the cutter, which is given by the parametric equation: (1) f inv (θ) = (x y) = r b (cos ϕ − sin ϕ sin ϕ cos ϕ) (sin θ − θ cos θ cos θ + θ sin θ) where ϕ is a constant given by: (2) ϕ = tan α − α + π + 4 x tan α 2 z

2004年8月1日 · Fig. 4c shows a flowchart of the program CrtFEMod, which together with the subroutines CrtSections (see Fig. 4b) and FindBnd (see Fig. 4a) create a FE model of an involute gear tooth sector (an FE model of a spur, helical or straight conical involute gear sector can be generated more effectively if additional logic is added to the processes).

2019年10月1日 · The contact ratios of the involute gear drives and the CRC gear drive are shown in Table 2. From the table, it can be observed that the contact ratio of the CRC gear drive is larger than 1, so that transmission continuity can be guaranteed. Compared with that of the involute gear drive, the contact ratio of the CRC gear drive is a little smaller.

2018年2月15日 · For involute spur gear pairs, the mesh points move along the action line with the rotation of gears. The action line is the common tangent to the base circles of the pinon and the gear, and the common normal to the tooth profiles [2] .

2011年4月1日 · The low-load capacity thus limits the application of this kind of gear pairs to power transmission. To overcome this drawback, Mitome et al. [5], [6], [7] proposed the idea of infeed grinding for the concave conical involute gear generation, and indicated that the gear pairs ground by this method have larger contact ellipses compared with those of the conventional conical …

2024年5月1日 · Since an involute cylindrical gear meshes in the face gear pairing, it is reasonable to use the methods according to ISO 6336 [46] or DIN 3990 [35] for the load carrying capacity calculation. The face gear tooth profile is not an involute and, therefore, cannot be handled directly with the standards.