IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0572826
(2012-08-13)
|
등록번호 |
US-8727933
(2014-05-20)
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발명자
/ 주소 |
- Enderle, Nathan
- McGrane, Sean
- Demick, Christopher
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
12 |
초록
▼
A final drive assembly for a machine is disclosed. The final drive assembly may comprise a motor coupled with a motor housing, a driven component rotatably mounted on the motor housing by at least one bearing, and a planetary transmission configured to transfer power from the motor to the driven com
A final drive assembly for a machine is disclosed. The final drive assembly may comprise a motor coupled with a motor housing, a driven component rotatably mounted on the motor housing by at least one bearing, and a planetary transmission configured to transfer power from the motor to the driven component. The planetary transmission may have a stationary carrier coupled with the motor housing, and the carrier may be adapted to retain the at least one bearing.
대표청구항
▼
1. A final drive assembly for a machine, comprising: a motor coupled with a motor housing;a driven component rotatably mounted on the motor housing by at least one bearing; anda planetary transmission configured to transfer power from the motor to the driven component, the planetary transmission hav
1. A final drive assembly for a machine, comprising: a motor coupled with a motor housing;a driven component rotatably mounted on the motor housing by at least one bearing; anda planetary transmission configured to transfer power from the motor to the driven component, the planetary transmission having a stationary carrier coupled with the motor housing, the carrier adapted to retain the at least one bearing. 2. The final drive assembly of claim 1, wherein the carrier is coupled to the motor housing by a plurality of bolts. 3. The final drive assembly of claim 2, wherein the plurality of bolts force the carrier against the at least one bearing to provide a desired pre-load force for retention of the at least one bearing. 4. The final drive assembly of claim 3, wherein a shoulder of the carrier abuts an inner race of the at least one bearing. 5. The final drive assembly of claim 2, wherein the carrier includes a plurality of pins, each pin configured to: locate a planet gear in mesh with a sun gear and a ring gear;receive at least one of the plurality of bolts; andassist in the retention of the carrier to the motor housing. 6. The final drive assembly of claim 5, wherein the pin has a bore to receive the at least one bolt, and wherein the bolt couples the carrier to the motor housing by retaining the carrier between the pin and the motor housing. 7. The final drive assembly of claim 1, wherein the carrier is interchangeable, can be removed from the motor housing and can be replaced with a different carrier having a different gear ratio. 8. The final drive assembly of claim 1, wherein the driven component comprises a sprocket hub coupled to a sprocket of a track assembly. 9. The final drive assembly of claim 1, wherein the motor comprises a closed circuit hydrostatic motor. 10. The final drive assembly of claim 1, wherein the planetary transmission comprises a first planetary gear set adapted transfer power from the motor to a second planetary gear set, the second planetary gear set adapted to reduce the speed from the first planetary gear set and transfer the power to the driven component, and wherein said carrier is part of the second planetary gear set. 11. The final drive assembly of claim 1, wherein the machine is a track-type tractor. 12. A final drive assembly for driving a sprocket hub of a machine, comprising: a motor coupled with a motor housing, the sprocket hub rotatably mounted on the motor housing by at least one sprocket bearing; anda first planetary gear set operatively configured to transfer power from the motor to a second planetary gear set, the second planetary gear set including:a sun gear adapted to receive power from the first planetary gear set;a plurality of planet gears in meshing contact with the sun gear and a ring gear, the ring gear coupled to the sprocket hub; anda stationary carrier locating the plurality of planet gears, the stationary carrier coupled with the motor housing and adapted to retain the at least one sprocket bearing. 13. The final drive assembly of claim 12, wherein the stationary carrier is coupled to the motor housing by a plurality of removable bolts, the plurality of removable bolts forcing the carrier against the at least one sprocket bearing to provide a desired pre-load force for retention of the at least one sprocket bearing. 14. The final drive assembly of claim 13, further comprising a plurality of pins within the stationary carrier, each of the plurality of pins configured to locate one of the planet gears, each of the plurality of pins having a bore to receive one of the removable bolts, and wherein at least some of the removable bolts are received in the bores of the pins to retain the stationary carrier to the motor housing. 15. The final drive assembly of claim 12, wherein the stationary carrier can be interchanged with a different carrier to provide different drive requirements. 16. The final drive assembly of claim 12, wherein a shoulder of the stationary carrier abuts an inner race of the at least one sprocket bearing. 17. A method for constructing a final drive assembly, comprising: providing the final drive assembly with a motor, a motor housing coupled with the motor, a sprocket hub rotatably mounted on the motor housing by at least one sprocket bearing, and a planetary transmission having a stationary carrier;abutting the stationary carrier against the at least one sprocket bearing and the motor housing; andbolting the stationary carrier to the motor housing to retain the at least one sprocket bearing. 18. The method of claim 17, wherein the planetary transmission comprises a first reduction gear set operatively configured to transfer power from the motor to a second reduction gear set, the second reduction gear set comprising: a sun gear adapted to receive power from the first planetary gear set;a plurality of planet gears in meshing contact with the sun gear and a ring gear, the ring gear coupled to the sprocket hub; andthe stationary carrier, wherein the stationary carrier locates the plurality of planet gears. 19. The method of claim 17, wherein a shoulder of the stationary carrier abuts the inner race of the at least one sprocket bearing. 20. The method of claim 17, wherein the stationary carrier can be interchanged with a different carrier to provide different drive requirements.
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