Actuator for use in aviation

Patent metadata

Field	Value
Publication number	US-11008097-B2
Application number	US-201916552405-A
Country	US
Kind code	B2
Filing date	Aug 27, 2019
Priority date	Feb 26, 2015
Publication date	May 18, 2021
Grant date	May 18, 2021

Abstract

An actuator for aviation may include an electromechanical drive unit connected with an output drive via a gearbox. The drive unit may have at least two partial drives that can be operated independently from one another. The gearbox may be located at least partially between the at least two partial drives such that the at least two partial drives are spaced apart from one another.

First claim

We claim:

1. An actuator for a rotor blade adjustment, comprising:
a drive unit connected with an output drive via a gearbox, wherein the drive unit is connected to the gearbox via at least one input shaft; and
wherein the drive unit comprises at least a first partial drive and a second partial drive that can be operated independently from one another,
wherein a first output shaft of the first partial drive, the gearbox, and a second output shaft of the second partial drive are coaxial with the at least one input shaft such that the first partial drive is located on a first side of the gearbox and the second partial drive is located on a second side of the gearbox and such that the gearbox forms a barrier between the first partial drive and the second partial drive, and
wherein the gearbox includes at least one of a planetary gear or a cycloid gear,
wherein the first output shaft of the first partial drive is coaxial with a first eccentric of the gearbox and configured to fix to the first eccentric during activation of the first partial drive, and
wherein the second output shaft of the second partial drive is coaxial with a second eccentric of the gearbox and configured to fix to the second eccentric during activation of the second partial drive.

2. The actuator of claim 1 , wherein the first partial drive and the second partial drive each comprise an electric motor with six phases.

3. The actuator of claim 1 , wherein the drive unit further comprises third and fourth partial drives, wherein the first and third partial drives are located on a first side of the gearbox, and wherein the second and fourth partial drives are located on a second side of the gearbox.

4. The actuator of claim 3 , wherein the first, second, third, and fourth partial drives each include an electric motor with three phases.

5. The actuator of claim 1 , wherein the at least one input shaft comprises a common input shaft associated with the first and second partial drives.

6. The actuator of claim 5 , wherein a separating clutch is located between the input shaft and at least one of the first and second partial drives, and wherein the separating clutch is configured to interrupt a mechanical connection of the input shaft.

7. The actuator of claim 1 , wherein the gearbox comprises a second input shaft, wherein one of the input shafts is associated with the first partial drive located on a first side of the gearbox, and wherein the other input shaft of the two input shafts is associated with the second partial drive situated on a second side of the gearbox, and wherein the gearbox connects the first and second partial drives with the output drive.

8. The actuator according to claim 1 , wherein the gearbox comprises multiple gear speeds.

9. An actuator for aviation applications, the actuator comprising:
a drive unit having at least a first partial drive and a second partial drive;
a gearbox connected to the drive unit, wherein the drive unit is connected to the gearbox via at least one input shaft; and
an output drive connected to the gearbox,
wherein a first output shaft of the first partial drive, the gearbox, and a second output shaft of the second partial drive are coaxial with the at least one input shaft such that the first partial drive is located on a first side of the gearbox and the second partial drive is located on a second side of the gearbox and such that the gearbox forms a barrier between the first partial drive and the second partial drive, and
wherein the gearbox includes at least one of a planetary gear or a cycloid gear,
wherein the first output shaft of the first partial drive is coaxial with a first eccentric of the gearbox and configured to fix to the first eccentric during activation of the first partial drive, and
wherein the second output shaft of the second partial drive is coaxial with a second eccentric of the gearbox and configured to fix to the second eccentric during activation of the second partial drive.

10. The actuator of claim 9 , wherein the first partial drive and the second partial drive each comprise an electric motor with six phases.

11. The actuator of claim 9 , wherein the drive unit further comprises third and fourth partial drives, wherein the first and third partial drives are located on the first side of the gearbox, and wherein the second and fourth partial drives are located on the second side of the gearbox.

12. The actuator of claim 11 , wherein the first, second, third, and fourth partial drives each include an electric motor with three phases.

13. The actuator of claim 9 , wherein the at least one input shaft comprises a common input shaft associated with the first and second partial drives.

14. The actuator of claim 9 , wherein a separating clutch is located between the input shaft and at least one of the first and second partial drives, and wherein the separating clutch is configured to interrupt a mechanical connection of the input shaft.

15. The actuator of claim 9 , wherein the gearbox comprises two input shafts, wherein one of the input shafts is associated with the first partial drive located on the first side of the gearbox, and wherein the other input shaft is associated with the second partial drive situated on the second side of the gearbox, and wherein the gearbox connects the first and second partial drives with the output drive.

16. The actuator according to claim 9 , wherein the gearbox comprises multiple gear speeds.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Götte Jürgen
• Arnold Uwe

Classifications

• F16H1/28

  with gears having orbital motion · CPC title

• F16H1/32

  in which the central axis of the gearing lies inside the periphery of an orbital gear · CPC title

• B64C13/50

  using electrical energy · CPC title

• B64C13/505

  having duplication or stand-by provisions · CPC title

• F16H2001/325

  comprising a carrier with pins guiding at least one orbital gear with circular holes · CPC title