to DMG-Lib main page
Home  · Site map  · Contact  ·

Advanced Search   Mechanism Search

LEVER-GEAR INTERNAL PLANETARY PARALLEL-CRANK MECHANISM

Click to enlargeClick to enlarge Description

Cranks 1 and 3 of parallel-crank linkage ABCD rotate about fixed axes A and D. Internal gear 4 is rigidly attached to (or integral with) connecting rod 2 and meshes with gear 5 which rotates about fixed axis E. The dimensions of the links comply with the conditions: A͞B=D͞C=r, B͞C=A͞D and r₄-r₅=r, where r₄ and r₅ are the pitch radii of gears 4 and 5. The transmission ratio from crank 1 to gear 5 is i₁₅=ω₁/ω₅=r₅/r=r₅/r₄-r₅=z₅/z₄-z₅ where ω₁ and ω₅ are the angular velocities of crank 1 and gear 5, and z₄ and z₅ are the numbers of teeth of gears 4 and 5. Crank 1 and gear 5 rotate in opposite directions. Large transmission ratios can be obtained if there is a small difference between the numbers of teeth of the gears.
$2416$LrG,5L$

Linked items
Documents: Gear mechanisms  [Streambook]
Permanent links
DMG-Lib FaviconDMG-Lib https://www.dmg-lib.org/dmglib/handler?image=19002023
Europeana FaviconEuropeana  http://www.europeana.eu/portal/record/2020801/dmglib_handler_image_19002023.html
Data provider
ITUIlmenau TU  http://www.tu-ilmenau.de
nach oben up
×