Enhanced application limits for crossed helical gearboxes using new geometries for smaller sliding paths or smaller contact pressures
Crossed-axis helical gear units are used as actuators and auxiliary drives in large quantities in automotive applications such as window regulators, windscreen wipers and seat adjusters. Commonly gear geometry of crossed helical gears is described with one pitch point. This article deals with an ext...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2019-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2019/36/matecconf_pt2019_01010.pdf |
| _version_ | 1818439050526195712 |
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| author | Boehme Christoph Vill Dietmar Tenberge Peter |
| author_facet | Boehme Christoph Vill Dietmar Tenberge Peter |
| author_sort | Boehme Christoph |
| collection | DOAJ |
| description | Crossed-axis helical gear units are used as actuators and auxiliary drives in large quantities in automotive applications such as window regulators, windscreen wipers and seat adjusters. Commonly gear geometry of crossed helical gears is described with one pitch point. This article deals with an extended calculation method for worm gear units. The extended calculation method increases the range of solutions available for helical gears. In general, for a valid crossed helical gear pair, the rolling cylinders do not have to touch each other. In mass production of many similar gears, individual gears can be reused because they can be paired with other centre distances and ratios. This also allows the use of spur gears in combination with a worm, making manufacturing easier and more efficient. By selecting design parameters, for example the axis crossing angle or the helix angle of a gear, positive effects can be achieved on the tooth contact pressure, the overlap ratio, the sliding paths, the lubrication condition, the tooth stiffness and, to a limited extent, on the efficiency of the gearing. It can be shown that for involute helical gears, in addition to the known insensitivity of the transmission behaviour to centre distance deviations, there is also insensitivity to deviations of the axis crossing angle. This means that installation tolerances for crossed helical gearboxes can be determined more cost-effectively. |
| first_indexed | 2024-12-14T17:50:18Z |
| format | Article |
| id | doaj.art-400d223dd9f34b62a05c55645391ad0d |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-14T17:50:18Z |
| publishDate | 2019-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-400d223dd9f34b62a05c55645391ad0d2022-12-21T22:52:39ZengEDP SciencesMATEC Web of Conferences2261-236X2019-01-012870101010.1051/matecconf/201928701010matecconf_pt2019_01010Enhanced application limits for crossed helical gearboxes using new geometries for smaller sliding paths or smaller contact pressuresBoehme ChristophVill DietmarTenberge PeterCrossed-axis helical gear units are used as actuators and auxiliary drives in large quantities in automotive applications such as window regulators, windscreen wipers and seat adjusters. Commonly gear geometry of crossed helical gears is described with one pitch point. This article deals with an extended calculation method for worm gear units. The extended calculation method increases the range of solutions available for helical gears. In general, for a valid crossed helical gear pair, the rolling cylinders do not have to touch each other. In mass production of many similar gears, individual gears can be reused because they can be paired with other centre distances and ratios. This also allows the use of spur gears in combination with a worm, making manufacturing easier and more efficient. By selecting design parameters, for example the axis crossing angle or the helix angle of a gear, positive effects can be achieved on the tooth contact pressure, the overlap ratio, the sliding paths, the lubrication condition, the tooth stiffness and, to a limited extent, on the efficiency of the gearing. It can be shown that for involute helical gears, in addition to the known insensitivity of the transmission behaviour to centre distance deviations, there is also insensitivity to deviations of the axis crossing angle. This means that installation tolerances for crossed helical gearboxes can be determined more cost-effectively.https://www.matec-conferences.org/articles/matecconf/pdf/2019/36/matecconf_pt2019_01010.pdf |
| spellingShingle | Boehme Christoph Vill Dietmar Tenberge Peter Enhanced application limits for crossed helical gearboxes using new geometries for smaller sliding paths or smaller contact pressures MATEC Web of Conferences |
| title | Enhanced application limits for crossed helical gearboxes using new geometries for smaller sliding paths or smaller contact pressures |
| title_full | Enhanced application limits for crossed helical gearboxes using new geometries for smaller sliding paths or smaller contact pressures |
| title_fullStr | Enhanced application limits for crossed helical gearboxes using new geometries for smaller sliding paths or smaller contact pressures |
| title_full_unstemmed | Enhanced application limits for crossed helical gearboxes using new geometries for smaller sliding paths or smaller contact pressures |
| title_short | Enhanced application limits for crossed helical gearboxes using new geometries for smaller sliding paths or smaller contact pressures |
| title_sort | enhanced application limits for crossed helical gearboxes using new geometries for smaller sliding paths or smaller contact pressures |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2019/36/matecconf_pt2019_01010.pdf |
| work_keys_str_mv | AT boehmechristoph enhancedapplicationlimitsforcrossedhelicalgearboxesusingnewgeometriesforsmallerslidingpathsorsmallercontactpressures AT villdietmar enhancedapplicationlimitsforcrossedhelicalgearboxesusingnewgeometriesforsmallerslidingpathsorsmallercontactpressures AT tenbergepeter enhancedapplicationlimitsforcrossedhelicalgearboxesusingnewgeometriesforsmallerslidingpathsorsmallercontactpressures |