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US 12,545,102 B2Granted
Transmission arrangement
AssigneeVolvo Construction Equipment AB
InventorsPer Mattsson, Peter Johansson
Life of this patent
Estimating the term…
Abstract
A transmission arrangement including a first planetary gear set comprising a first sun gear, a first ring gear and a first planet carrier; a second planetary gear set comprising a second sun gear, a second ring gear and a second planet carrier; a third planetary gear set comprising a third sun gear, a third ring gear and a third planet carrier; an input shaft being operatively connected to the second and third sun gears; a first intermediate shaft operatively connected to the first ring gear and to the second planet carrier; a gear selection arrangement; a first output shaft to be connected to a first driven axle, a second output shaft to be connected to a second driven axle, and a differential unit configured to distribute torque to the first and second output shafts.
Claims14
A transmission arrangement, comprising:
- a first planetary gear set comprising a first sun gear, a first ring gear and a first planet carrier carrying a first set of planet gears, the first set of planet gears being in meshing engagement with the first ring gear and the first sun gear,
- a second planetary gear set comprising a second sun gear, a second ring gear and a second planet carrier carrying a second set of planet gears, the second set of planet gears being in meshing engagement with the second ring gear and the second sun gear,
- a third planetary gear set comprising a third sun gear, a third ring gear and a third planet carrier carrying a third set of planet gears, the third set of planet gears being in meshing engagement with the third ring gear and the third sun gear,
- an input shaft connectable to a prime mover, the input shaft being operatively connected to the second sun gear and to the third sun gear,
- a first intermediate shaft operatively connected to the first ring gear and to the second planet carrier,
- a gear selection arrangement, comprising
- a first locking mechanism connected to the first planet carrier,
- a second locking mechanism connected to the first sun gear, the second ring gear and the third planet carrier, and
- a third locking mechanism connected to the third ring gear,
- a first output shaft configured to be connected to a first driven axle,
- a second output shaft configured to be connected to a second driven axle, and
- a differential unit connected to the first intermediate shaft, the differential unit being configured to distribute torque to the first and second output shafts,
- wherein the gear selection arrangement is adapted to assume three gear stages, wherein a first gear stage is obtainable by solely locking the first locking mechanism, a second gear stage is obtainable by solely locking the second locking mechanism, and a third gear stage is obtainable by solely locking the third locking mechanism.
10 more elements
A transmission arrangement, comprising:
- a first planetary gear set comprising a first sun gear, a first ring gear and a first planet carrier carrying a first set of planet gears, the first set of planet gears being in meshing engagement with the first ring gear and the first sun gear,
- a second planetary gear set comprising a second sun gear, a second ring gear and a second planet carrier carrying a second set of planet gears, the second set of planet gears being in meshing engagement with the second ring gear and the second sun gear,
- a third planetary gear set comprising a third sun gear, a third ring gear and a third planet carrier carrying a third set of planet gears, the third set of planet gears being in meshing engagement with the third ring gear and the third sun gear,
- an input shaft connectable to a prime mover, the input shaft being operatively connected to the second sun gear and to the third sun gear,
- a first intermediate shaft operatively connected to the first ring gear and to the second planet carrier,
- a gear selection arrangement, comprising
- a first locking mechanism connected to the first planet carrier,
- a second locking mechanism connected to the first sun gear, the second ring gear and the third planet carrier, and
- a third locking mechanism connected to the third ring gear,
- a first output shaft configured to be connected to a first driven axle,
- a second output shaft configured to be connected to a second driven axle,
- a differential unit connected to the first intermediate shaft, the differential unit being configured to distribute torque to the first and second output shafts, and
- a first clutch configured to selectively rotationally connect the input shaft to the first intermediate shaft.
10 more elements
A transmission arrangement, comprising:
- a first planetary gear set comprising a first sun gear, a first ring gear and a first planet carrier carrying a first set of planet gears, the first set of planet gears being in meshing engagement with the first ring gear and the first sun gear,
- a second planetary gear set comprising a second sun gear, a second ring gear and a second planet carrier carrying a second set of planet gears, the second set of planet gears being in meshing engagement with the second ring gear and the second sun gear,
- a third planetary gear set comprising a third sun gear, a third ring gear and a third planet carrier carrying a third set of planet gears, the third set of planet gears being in meshing engagement with the third ring gear and the third sun gear,
- an input shaft connectable to a prime mover, the input shaft being operatively connected to the second sun gear and to the third sun gear,
- a first intermediate shaft operatively connected to the first ring gear and to the second planet carrier,
- a gear selection arrangement, comprising
- a first locking mechanism connected to the first planet carrier,
- a second locking mechanism connected to the first sun gear, the second ring gear and the third planet carrier, and
- a third locking mechanism connected to the third ring gear,
- a first output shaft configured to be connected to a first driven axle,
- a second output shaft configured to be connected to a second driven axle,
- a differential unit connected to the first intermediate shaft, the differential unit being configured to distribute torque to the first and second output shafts, and
- an input shaft gearwheel arranged on the input shaft, the input shaft gearwheel being arranged in meshing engagement with a first gearwheel and a second gearwheel, wherein the first gearwheel is connectable to the prime mover, and the second gearwheel is connectable to a second prime mover.
10 more elements
Dependencies are inferred from the claim text.