IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0785789
(2010-05-24)
|
등록번호 |
US-8707811
(2014-04-29)
|
우선권정보 |
DE-10 2009 022 406 (2009-05-25) |
발명자
/ 주소 |
|
출원인 / 주소 |
- Liebherr-Aerospace Lindenberg GmbH
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
4 |
초록
▼
The present invention relates to a spindle drive having a first load path which is formed by the spindle and having a second load path which is formed by a torsion bar which is exposed to torsion, which is arranged in the spindle and is connected to it such that a rotary movement is exerted onto the
The present invention relates to a spindle drive having a first load path which is formed by the spindle and having a second load path which is formed by a torsion bar which is exposed to torsion, which is arranged in the spindle and is connected to it such that a rotary movement is exerted onto the spindle in at least one state of the threaded drive by the torsion bar, with the spindle drive having a sensor unit which is made such that it detects a relative movement between the spindle and the torsion bar.
대표청구항
▼
1. A spindle drive (100) having a first load path formed by a spindle (10) and having a second load path formed by a torsion bar (20) exposed to torsion, arranged in the spindle (10) and connected to the spindle such that a rotational movement is exerted onto the spindle (10) by the torsion bar (20)
1. A spindle drive (100) having a first load path formed by a spindle (10) and having a second load path formed by a torsion bar (20) exposed to torsion, arranged in the spindle (10) and connected to the spindle such that a rotational movement is exerted onto the spindle (10) by the torsion bar (20) in at least one state of the spindle drive (100), wherein the spindle drive (100) has a sensor unit (30) configured to detect a relative movement between the spindle (10) and the torsion bar (20). 2. A spindle drive (100) in accordance with claim 1, wherein the torsion bar (20) is rotationally fixedly connected to the spindle (10) in a region, preferably in an end region (110) of the spindle drive (100) and secured against an axial displacement. 3. A spindle drive (100) in accordance with claim 1, wherein the torsion bar (20) is connected to the spindle (10) by a bolt (40) which secures the spindle (10) and the torsion bar (20) relative to one another in the axial direction and in the direction of rotation. 4. A spindle drive (100) in accordance with claim 1, wherein the torsion bar (20) is connected to the spindle (10) in a region, preferably in an end region (120) of the spindle drive (100) via a wedge-shaped connection section (50) via which a torque can be transmitted between the torsion bar (20) and the spindle (10). 5. A spindle drive (100) in accordance with claim 1, wherein the torsion bar (20) is connected to the spindle (10) in a region, preferably in an end region (120), via a ring (60) for the taking up of axial forces. 6. A spindle drive (100) in accordance with claim 1, wherein the sensor unit (30) is connected to a region, preferably to an end region, of the spindle (10) such that the spindle drive is axially displaceably arranged with the spindle (10). 7. A spindle drive (100) in accordance with claim 1, wherein the sensor unit (30) is arranged rotationally fixedly. 8. A spindle drive (100) in accordance with claim 1, wherein the torsion bar (20) is connected to the spindle (10) or to the sensor unit (30) by a spring (70) which exerts a force acting in the axial direction. 9. A spindle drive (100) in accordance with claim 8, wherein the spring (70) is a compression spring (70). 10. A spindle drive (100) in accordance with claim 8, wherein the rotational movement of the spindle (10) exerted by the torsion bar (20) takes place in a direction such that a compression of the spring (70) takes place. 11. A spindle drive (100) in accordance with claim 1, wherein the sensor unit (30) is configured such that the sensor unit detects the movement of a piston, with the piston being arranged such that it undergoes a movement on a relative movement between the torsion bar (20) and the spindle (10). 12. A spindle drive (100) in accordance with claim 11, wherein the piston is arranged in a groove (22) of the torsion bar (20) in the normal operating state and is moved in a radial direction toward the torsion bar (20) in a defect event. 13. A spindle drive (100) in accordance with claim 1, wherein the torsion bar (20) has a length which exceeds that of the threaded spindle (10). 14. A spindle drive (100) in accordance with claim 1, wherein the spindle drive (100) is connected to a component of an aircraft, in particular of an airplane, whose position is to be changed. 15. An aircraft, in particular an airplane, having at least one spindle drive (100) in accordance with one claim 1. 16. A spindle drive (100) in accordance with claim 2, wherein the torsion bar (20) is connected to the spindle (10) by a bolt (40) which secures the spindle (10) and the torsion bar (20) relative to one another in the axial direction and in the direction of rotation. 17. A spindle drive (100) in accordance with claim 16, wherein the torsion bar (20) is connected to the spindle (10) in a region, preferably in an end region (120) of the spindle drive (100) via a wedge-shaped connection section (50) via which a torque can be transmitted between the torsion bar (20) and the spindle (10). 18. A spindle drive (100) in accordance with claim 3, wherein the torsion bar (20) is connected to the spindle (10) in a region, preferably in an end region (120) of the spindle drive (100) via a wedge-shaped connection section (50) via which a torque can be transmitted between the torsion bar (20) and the spindle (10). 19. A spindle drive (100) in accordance with claim 2, wherein the torsion bar (20) is connected to the spindle (10) in a region, preferably in an end region (120) of the spindle drive (100) via a wedge-shaped connection section (50) via which a torque can be transmitted between the torsion bar (20) and the spindle (10). 20. A spindle drive (100) in accordance with claim 17, wherein the torsion bar (20) is connected to the spindle (10) in a region, preferably in an end region (120), via a ring (60) for the taking up of axial forces.
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