IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0452703
(2003-06-02)
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발명자
/ 주소 |
- Youells, James P.
- Holland, Scott B.
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출원인 / 주소 |
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인용정보 |
피인용 횟수 :
3 인용 특허 :
8 |
초록
▼
A drive location compensation system determines a deviation between an actual and nominal position of a drive location on a rotor relative to an attachment location on the rotor. The compensation system uses a balancing machine and a sensor that detects when one of the attachment locations passes a
A drive location compensation system determines a deviation between an actual and nominal position of a drive location on a rotor relative to an attachment location on the rotor. The compensation system uses a balancing machine and a sensor that detects when one of the attachment locations passes a known position. Based on the output of the sensor and a known position of a drive spindle of the balancing machine that is coupled to the drive location on the rotor, a relation between the drive spindle and the attachment location is determined. This relationship is compared to a nominal relationship that is based on a calibration standard. The deviation is compensated for during the balancing or the rotor.
대표청구항
▼
1. A method of balancing a rotor in a balancing machine, the rotor having a drive location and at least one attachment location to which component(s) possessing mass are later attached, the method comprising:(a) determining a deviation in a relationship between the drive location on the rotor and th
1. A method of balancing a rotor in a balancing machine, the rotor having a drive location and at least one attachment location to which component(s) possessing mass are later attached, the method comprising:(a) determining a deviation in a relationship between the drive location on the rotor and the attachment location on the rotor while the rotor is rotating in the balancing machine; and(b) compensating for said deviation while balancing the rotor in the balancing machine. 2. The method of claim 1, wherein step (a) includes determining an angular deviation in an angular relationship between the drive location and the attachment location. 3. The method of claim 1, wherein the rotor is a crankshaft that has a central axis, the attachment location is a crankpin, and the drive location is a drive hole and further comprising rotating said crankshaft about said central axis with said drive hole. 4. The method of claim 1, wherein the rotor is a crankshaft that has a central axis, the attachment location is a crankpin, and the drive location is a mill pad and further comprising rotating said crankshaft about said central axis with said mill pad. 5. The method of claim 1, wherein the rotor is a crankshaft that has a central axis, the attachment location is a crankpin, and the drive location is a keyway and further comprising rotating said crankshaft about said central axis with said keyway. 6. The method of claim 1, wherein step (a) includes determining a positional deviation in a positional relationship between the drive location and the attachment location. 7. The method of claim 1, wherein step (a) includes:determining a nominal relationship between a drive location on a calibration standard and an attachment location on said calibration standard;determining an actual relationship between the drive location on the rotor and the attachment location on the rotor; andwherein said deviation is a difference between said nominal relationship and said actual relationship. 8. A method of balancing a crankshaft in a balancing machine, the crankshaft having a drive hole which can be used to rotate the crankshaft during a balancing operation, the method comprising:(a) determining a deviation in a relationship between the drive hole on the crankshaft and a crankpin on the crankshaft while the crankshaft is rotating in the balancing machine; and(b) compensating for said deviation while balancing the crankshaft in the balancing machine. 9. The method of claim 8, further comprising rotating the crankshaft with the drive hole. 10. The method of claim 8, wherein step (a) includes determining an angular deviation in an angular relationship between the drive hole and said crankpin. 11. The method of claim 8, wherein step (a) includes determining a positional deviation in a positional relationship between the drive hole and said crankpin. 12. The method of claim 8, wherein step (a) includes sensing a leading edge of said crankpin and sensing a trailing edge of said crankpin. 13. The method of claim 8, wherein step (a) includes:determining a nominal relationship between a drive hole on a calibration standard and a crankpin on said calibration standard;determining an actual relationship between the drive hole on the crankshaft and said crankpin on the crankshaft; andwherein said deviation is a difference between said nominal relationship and said actual relationship. 14. A system for balancing a rotor having a drive location and at least one attachment location to which component(s) possessing mass are later attached, the system comprising:a balancing machine operable to balance the rotor, said balancing machine including a spindle operable to couple to the drive location on the rotor being balanced, said spindle rotating the rotor during balancing;an attachment location sensor operable to sense a position of the attachment location on the rotor being balanced; andwherein a deviation between a nominal position of the drive location and an actual posit ion of the drive location relative to the attachment location being sensed is compensated for during balancing of the rotor. 15. The system of claim 14, wherein said deviation is an angular deviation. 16. The system of claim 14, wherein said attachment location sensor is a magnetic sensor. 17. The system of claim 14, wherein said attachment location sensor senses a leading edge of the attachment location and a trailing edge of the attachment location. 18. The system of claim 14, wherein said attachment location sensor senses said position of the attachment location while the rotor is being rotated by said spindle. 19. The system of claim 14, wherein the rotor is a crankshaft, the attachment location is a crankpin on said crankshaft, and the drive location is a drive hole on said crankshaft. 20. The system of claim 14, wherein said spindle has a drive pin that engages with said drive hole on the crankshaft, said drive pin aligning said drive hole relative to said spindle. 21. The system of claim 14, wherein the rotor is a crankshaft, the attachment location is a crankpin on said crankshaft, and the drive location is a mill pad on said crankshaft. 22. The system of claim 14, wherein the rotor is a crankshaft, the attachment location is a crankpin on said crankshaft, and the drive location is a keyway on said crankshaft. 23. The system of claim 14, wherein said balancing machine further includes:a spindle sensor operable to provide a signal when said spindle is at a fixed point in said spindle's rotation; andan encoder operable to provide spindle position information as said spindle rotates.
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