Planetary gear unit and wind turbine generator
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0726804
(2013-03-25)
|
등록번호 |
US-8790213
(2014-07-29)
|
우선권정보 |
JP-2011-289996 (2011-12-28) |
발명자
/ 주소 |
- Isayama, Shuichi
- Nishida, Hideaki
|
출원인 / 주소 |
- Mitsubishi Heavy Industries, Ltd.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
6 |
초록
▼
A planetary gear unit including a ring gear, a sun gear provided on an inner circumferential side of the ring gear, at least one planetary gear arranged between the ring gear and the sun gear to mesh with the ring gear and the sun gear, a planetary pin fixed to a carrier and inserted in a shaft hole
A planetary gear unit including a ring gear, a sun gear provided on an inner circumferential side of the ring gear, at least one planetary gear arranged between the ring gear and the sun gear to mesh with the ring gear and the sun gear, a planetary pin fixed to a carrier and inserted in a shaft hole of the planetary gear, and a slide bearing arranged between the planetary gear and the planetary pin, wherein the slide bearing is formed of a resin material and is provided on an outer periphery of the planetary pin at least in a region where the planetary pin slides relative to the planetary gear.
대표청구항
▼
1. A planetary gear unit comprising: a ring gear;a sun gear provided on an inner circumferential side of the ring gear;at least one planetary gear arranged between the ring gear and the sun gear to mesh with the ring gear and the sun gear;a planetary pin fixed to a carrier and inserted in a shaft ho
1. A planetary gear unit comprising: a ring gear;a sun gear provided on an inner circumferential side of the ring gear;at least one planetary gear arranged between the ring gear and the sun gear to mesh with the ring gear and the sun gear;a planetary pin fixed to a carrier and inserted in a shaft hole of the planetary gear; anda slide bearing arranged between the planetary gear and the planetary pin,wherein the slide bearing is formed of a resin material, is fixed to the planetary pin, and is provided on an outer periphery of the planetary pin at least in a region where the planetary pin slides relative to the planetary gear. 2. The planetary gear unit according to claim 1, further comprising: a metal sleeve attached to the inner periphery of the shaft hole of the planetary gear,wherein an inner periphery of the sleeve has a surface roughness that is smaller than a thickness of an oil film of lubricating oil formed between the inner periphery of the sleeve and the slide bearing. 3. The planetary gear unit according to claim 2, wherein at least one of an outer periphery of the slide bearing or the inner periphery of the shaft hole of the planetary gear is crowned along an axial direction of the planetary pin. 4. The planetary gear unit according to claim 1, wherein at least one of an outer periphery of the slide bearing or the inner periphery of the shaft hole of the planetary gear is crowned along an axial direction of the planetary pin. 5. The planetary gear unit according to claim 1, wherein the planetary gear unit is of a planetary type,wherein the slide bearing is formed of a first part and a second part that are apart from each other,wherein the first part and the second part of the slide bearing are disposed on an outer periphery of the planetary pin at both sides in a revolving direction of the planetary pin. 6. A wind turbine generator comprising: the planetary gear unit of claim 1. 7. The planetary gear unit according to claim 1, wherein the planetary gear is configured to be relatively rotatable to the slide bearing. 8. The planetary gear unit according to claim 1, wherein the slide bearing contacts the planetary gear and the planetary pin. 9. A device, comprising: a wind turbine generator, including: a planetary gear unit comprising: a ring gear;a sun gear provided on an inner circumferential side of the ring gear;at least one planetary gear arranged between the ring gear and the sun gear to mesh with the ring gear and the sun gear;a planetary pin fixed to a carrier and inserted in a shaft hole of the planetary gear; anda slide bearing arranged between the planetary gear and the planetary pin,wherein the slide bearing is formed of a resin material, is fixed to the planetary pin, and is provided on an outer periphery of the planetary pin at least in a region where the planetary pin slides relative to the planetary gear. 10. The device of claim 9, wherein at least one of an outer periphery of the slide bearing or the inner periphery of the shaft hole of the planetary gear is crowned along an axial direction of the planetary pin. 11. The device of claim 9, wherein the planetary gear unit is of a planetary type,wherein the slide bearing is formed of a first part and a second part that are apart from each other,wherein the first part and the second part of the slide bearing are disposed on an outer periphery of the planetary pin at both sides in a revolving direction of the planetary pin. 12. The device of claim 9, wherein the planetary gear is configured to be relatively rotatable to the slide bearing. 13. The device according to claim 9, wherein the slide bearing contacts the planetary gear and the planetary pin. 14. The device of claim 9, further comprising: a metal sleeve attached to the inner periphery of the shaft hole of the planetary gear,wherein an inner periphery of the sleeve has a surface roughness that is smaller than a thickness of an oil film of lubricating oil formed between the inner periphery of the sleeve and the slide bearing. 15. The device of claim 14, wherein at least one of an outer periphery of the slide bearing or the inner periphery of the shaft hole of the planetary gear is crowned along an axial direction of the planetary pin.
이 특허에 인용된 특허 (6)
-
Ziegler Rolf (Nusslock DEX) Hauk Peter (Bonndorf DEX), Epicyclic gear.
-
Harris Bernard ; Bozych Dennis E. ; Scholbe Jeffrey R., Full perimeter fiber wound bearing construction.
-
Montestruc, Alfred, Gear assembly with asymmetric flex pin.
-
Oertley,Thomas E., Machine track roller assembly.
-
McCreary Charles H. (Oak Park IL), Turbocharger planetary drive.
-
Van Bogaert, Annaïk; Verbiest, Rik; Smook, Warren, Wind turbine drive.
이 특허를 인용한 특허 (1)
-
Guettler, Alexander; Plogmann, Michael; Forstner, Christian; Claus, Sven, Planetary gear bearing arrangement.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.