Power take-off, vehicle with such a power take-off and an intermediate piece for such a power take-off

Patent metadata

Field	Value
Publication number	US-2016129786-A1
Application number	US-201414889494-A
Country	US
Kind code	A1
Filing date	May 21, 2014
Priority date	May 21, 2013
Publication date	May 12, 2016
Grant date	—

Abstract

A power take-off includes a housing ( 18 ) which at least partly accommodates an input shaft ( 20 ), at least one output shaft ( 22 ), a first transmission device ( 24 ) connected to the input shaft ( 20 ), a second transmission device ( 26 ) connected to the at least one output shaft ( 22 ), and at least one offtake module ( 30 ) connected to the at least one output shaft ( 22 ). The second transmission device ( 26 ) and the at least one output shaft ( 22 ) are arranged to fit in and be removable from the housing ( 18 ). Also, a vehicle ( 1 ) provided with such a power take-off ( 16 ) and to an intermediate piece ( 48 ) for such a power take-off ( 16 ).

First claim

1 . A power take-off comprising:
an input shaft and a housing configured to at least partly accommodate the input shaft; at least two output shafts extending outward of the housing; a first rotation transmission connected to the input shaft for driving the input shaft; a second rotation transmission connected to at least one of the output shafts for being driven by the at least one of the output shafts; a third rotation transmission connected to at least another of the output shafts for being driven by the at least another one of the output shafts; at least two offtake modules respectively connected to two of the output shafts; and the second rotation transmission and the at least one output shaft which is connected to the second rotation transmission are both configured and arranged to be fittable in and removable from the housing.

2 . A power take-off according to claim 1 , further comprising:
the first rotation transmission is fitted in the housing; the housing is configured so that the second rotation transmission and the at least one output shaft connected to the second rotation transmission are fittable in and removable from the housing when the first rotation transmission is also fitted in the housing.

3 . In combination, a powertrain from an engine and a power take-off according to claim 1 the combination comprising: the powertrain is connected to the input shaft for the powertrain to drive the input shaft; and the housing is configured so that the second rotation transmission and the at least one output shaft connected to the second rotation transmission are fittable in and removable from the housing when the input shaft is connected to the powertrain.

4 . A power take-off according to claim 1 , further comprising:
the housing is configured so that the second rotation transmission and the at least one output shaft connected to the second rotation transmission are fittable in and removable from the housing when the housing is fitted on a vehicle.

5 . A power take-off according to claim 1 , further comprising:
two of the offtake modules; the second rotation transmission is configured so that the at least one output shaft connected to the second rotation transmission is configured to be connected to two of the offtake modules.

6 . A power take-off according to claim 1 , further comprising:
the second rotation transmission is configured so that two of the offtake modules can be connected to the at least one output shaft which is connected to the second rotation transmission, and the second rotation transmission extends in two opposite directions out of the housing each for connection respectively to the two of the offtake modules.

7 . A power take-off according to claim 1 , further comprising:
a controllable clutch unit between the at least one output shaft which is connected to the second rotation transmission and the at least one offtake module which is connected to the at least one output shaft.

8 . A power take-off according to claim 7 , further comprising:
an intermediate piece between the housing and the clutch unit, the intermediate piece comprises a base portion provided with ducts configured for conveying fluid to the clutch unit and controllable for directing the clutch unit to one of disconnected or connected positions of the clutch unit.

9 . A power take-off according to claim 8 , further comprising:
at least one control valve in the base portion of the intermediate piece and configured and operable to direct the fluid to the clutch unit.

10 . A power take-off according to claim 1 , wherein the first, second and third rotation transmissions are respectively gearwheels.

11 . A power take-off according to claim 1 , wherein the at least one offtake module comprises a hydraulic pump or a connecting flange.

12 . A vehicle including a power take-off according to claim 1 .

13 . An intermediate piece for use in a power take-off according to claim 7 , wherein the intermediate piece comprises a base portion provided with ducts configured for conveying fluid to a clutch unit at the intermediate piece and the ducts are controllable for directing the clutch unit to one of the disconnected or the connected positions of the clutch unit.

14 . An intermediate piece according to claim 13 , further comprising:
at least one control valve in the base portion and configured and operable to direct the fluid to the clutch unit.

15 . In combination, a powertrain from an engine and a power take-off according to claim 2 ,
the combination comprising: the powertrain is connected to the input shaft for the powertrain to drive the input shaft; and the housing is configured so that the second rotation transmission and the at least one output shaft connected to the second rotation transmission are fittable in and removable from the housing when the input shaft is connected to the powertrain.

16 . The power take-off according to claim 2 , further comprising:
the housing is configured so that the second rotation transmission and the at least one output shaft are connected to the second rotation transmission are fittable in and removable from the housing when the housing is fitted on a vehicle.

17 . The power take-off according to claim 10 , wherein the gearwheel of the first rotation transmission meshes with the gearwheel of the second and the third rotation transmissions for the first rotation transmission driving rotation of the second and third rotation transmissions.

Assignees

• Scania Cv Ab

Inventors

• Petersen Daniel
• Träff Johan

Classifications

• B66C13/12

  Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices · CPC title

• B60Y2300/423

  Control of power take-off clutches · CPC title

• B60K2025/022

  by a mechanical transmission · CPC title

• B60K25/06 Primary

  from the transmission power take-off · CPC title

• B60K17/28 Primary

  characterised by arrangement, location, or type of power take-off · CPC title