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Determination of contact pattern for double enveloping worm gear

Połowniak Piotr, Sobolak Mariusz, Marciniec Adam

Advances in Manufacturing Science and Technology

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2020

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Vol. 44, nr 4

145--154

EN

The paper presents the method of determining geometric contact pattern by using the direct computer-aided design (CAD) method for ideal globoid worm gear in which mounting deviations are considered. The tooth contact analysis was performed for all cycle of worm rotation. Based on the results of temporary contact pattern, graphical characteristics of the contact area size depending on worm position were made. A complete analysis of the correctness of gear meshing can be obtained based on presented method. If the worm or worm wheel is incorrectly designed in terms of the geometry, the meshing simulation of CAD models can indicate the collision. Geometric contact pattern analyses were made at two pressure angles of ideal gear. The analysis of the influence of mounting deviations was done against one selected pressure angle and one gear position.

2

Application of advanced CAX systems for design and performance of tilting table in vertical machining centre

Kubica Paweł, Ociepka Piotr

Selected Engineering Problems

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2019

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nr 8

43--48

EN

In the article design process of tilting table, which is additional tooling of triaxial, vertical machining centre Harnaś R550, has been describe. Thanks to this modification, a possibility of machining axial-nonrotating elements by means of various angular positions – so-called indexed machining, was gained. The proposed tooling in CAD environment has been modeled. After calculation of the forces, which may arise at the machining, strength test by FEM has been carried out in order to select appropriate components of the designed tooling. Based on developed structure the prototype has been built, which on real machine has been mounted. Afterwards, machining accuracy of control items has been compared, carried out by three different methods, including use of tilting table and CAM software.

3

Analityczny sposób wyznaczania krzywej przejścia u podstawy zęba w przekładniach z tworzyw polimerowych

Strojny P.

Przegląd Mechaniczny

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2016

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nr 3

34--39

PL

Artykuł zawiera opis sposobów modelowania powierzchni zęba w przekładniach z tworzyw polimerowych. Przedstawiono dwie metody modelowania: analityczną oraz bezpośredniej symulacji procesu nacinania. Porównano wymienione metody ze względu na jakość otrzymanych powierzchni. Przedstawiono możliwości wykorzystania metody analitycznej do modelowania kół zębatych typu Beveloid.

EN

In the article the tooth surface modeling descriptions, for the polymeric gears, were included. The two modeling methods were presented: analytical method and the virtual simulation of the gear cutting process. These two methods were compared in terms of the gear surfaces quality The possibility of using analytical methods for Beveloid gear modeling was also presented.