[특허]Ring mill apparatus and method

Firth Rixson

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Ring mill apparatus and method

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B21D-015/04 B21D-015/00
미국특허분류(USC)	072/105; 072/106; 072/249; 072/453.02
출원번호	UP-0933988 (2007-11-01)
등록번호	US-7596979 (2009-10-20)
발명자 / 주소	Hebert, David
출원인 / 주소	Firth Rixson
대리인 / 주소	Baker & Hostetler LLP
인용정보	피인용 횟수 : 0 인용 특허 : 25

초록
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A ring mill apparatus and method utilizes at least one hydraulic or other direct drive motor to drive a roller in contact with a ring that is to be expanded by the ring mill. The motor may be two opposed radial piston hydraulic motors, to drive an upper king roller, which contacts the outside of the ring, which is inserted between the upper king roller and a lower mandrel roller, which contacts the inside of the ring. The lower mandrel roller is urged upwards against the ring by a ram driven carriage. Two hydraulic or other direct drive motors can be pr...

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What is claimed is: 1. A system to expand a ring, comprising: a king roller arranged to contact the outside of the ring; a mandrel roller arranged to contact the inside of the ring; a shaft connected to the king roller; a drive system, having two hydraulic motors connected to the shaft, configured to rotationally drive the king roller; and a hydraulic ram configured to apply pressure between the king roller and the mandrel roller. 2. The system of claim 1, wherein the shaft has a first end and a second end, and the two hydraulic motors are connected to the shaft at the first end. 3. The system of claim 1, wherein the shaft has a first end and a second end and each end is connected to a respective one of the hydraulic motors. 4. The system of claim 1, wherein the two hydraulic motors are directly connected to the shaft. 5. The system of claim 1, wherein the shaft extends through the center of the king roller. 6. The system of claim 5, wherein the drive system further comprises a series of pumps that drives a respective hydraulic motor of the two hydraulic motors. 7. The system of claim 6, further comprising a torque arm attached to a respective hydraulic motor of the two hydraulic motors and configured to restrain the respective hydraulic motor. 8. The system of claim 7, wherein the hydraulic motors comprise radial piston hydraulic motors. 9. The system of claim 7, wherein the hydraulic motors comprise rotary motors. 10. The system of claim 7, wherein the hydraulic motors provide a combined output of at least 2000 HP. 11. The system of claim 1, further comprising a frame configured to support the mandrel roller and the hydraulic ram. 12. The system of claim 1, further comprising a frame configured to support the king roller and a pair of stabilizing arms configured to attach to the frame each having a respective stabilizing roller configured to contact the outside of the ring. 13. The system of claim 1, further comprising: a roller holder removeably attached to the mandrel roller; a support track moveably connected to the roller holder and configured to allow lateral movement of the roller holder and the mandrel roller between a retracted position for insertion and removal of the ring and an operative position for contacting the ring. 14. A system to expand a ring, comprising: a king roller arranged to contact the outside of the ring; a mandrel roller arranged to contact the inside of the ring; a shaft connected to the mandrel roller; a drive system, having two hydraulic motors connected to the shaft, configured to rotationally drive the mandrel roller; and a hydraulic ram configured to apply pressure between the king roller and the mandrel roller. 15. The system of claim 14, wherein the shaft has a first end and a second end, and the two hydraulic motors are connected to the shaft at the first end. 16. The system of claim 14, wherein the shaft has a first end and a second end and each end is connected to a respective one of the hydraulic motors. 17. The system of claim 14, wherein the two hydraulic motors are directly connected to the shaft. 18. The system of claim 14, wherein the shaft extends through the center of the mandrel roller. 19. The system of claim 18, wherein the drive system further comprises a series of pumps that drives a respective hydraulic motor of the two hydraulic motors. 20. The system of claim 19, further comprising a torque arm attached to a respective hydraulic motor of the two hydraulic motors and configured to restrain the respective hydraulic motor. 21. The system of claim 20, wherein the hydraulic motors comprise radial piston hydraulic motors. 22. The system of claim 20, wherein the hydraulic motors comprise rotary motors. 23. The system of claim 20, wherein the hydraulic motors provide a combined output of at least 2000 HP. 24. The system of claim 14, further comprising a frame configured to support at least a hydraulic ram. 25. An expanded ring made by a process, comprising the steps of: contacting the outside of a ring with a king roller; contacting the inside of the ring with a mandrel roller; driving a shaft with a drive system having two hydraulic motors configured to rotationally drive the shaft; driving one of the rollers with the driven shaft, the driven shaft configured to rotationally drive the king roller; rotating the ring between the rollers; and applying pressure to the rotating ring with a hydraulic ram configured to apply pressure between the king roller and the mandrel roller. 26. The expanded ring made by the process of claim 25, further comprising the steps of: moving the mandrel roller laterally to contact the ring; and releasing the mandrel roller from a roller holder. 27. The expanded ring made by the process of claim 26, further comprising the steps of: attaching the mandrel roller to the roller holder; and moving the mandrel roller laterally to separate from the ring. 28. The expanded ring made by the process of claim 25, wherein applying pressure further comprises the step of urging the mandrel roller toward the king roller with the hydraulic ram. 29. The expanded ring made by the process of claim 25, wherein driving the shaft further comprises the step of applying at least 2000 HP of driving force, and wherein applying pressure further comprises the step of applying at least 1000 tons of compressive force. 30. The expanded ring made by the process of claim 25, further comprising the step of stabilizing the ring by urging a roller attached to a stabilizing swing arm against the ring. 31. An expanded ring made by a process, comprising the steps of: contacting the outside of a ring with a king roller; contacting the inside of the ring with a mandrel roller; driving a shaft with a drive system having two hydraulic motors configured to rotationally drive the shaft; driving one of the rollers with the driven shaft, the driven shaft configured to rotationally drive the mandrel roller; rotating the ring between the rollers; and applying pressure to the rotating ring with a hydraulic ram configured to apply pressure between the king roller and the mandrel roller. 32. The expanded ring made by the process of claim 31, wherein applying pressure further comprises the step of urging the hydraulic ram toward the rollers. 33. The expanded ring made by the process of claim 31, wherein driving the shaft further comprises the step of applying at least 2000 HP of driving force, and wherein applying pressure further comprises the step of applying at least 1000 tons of compressive force. 34. A method of expanding a ring, comprising the steps of: contacting the outside of the ring with a king roller; contacting the inside of the ring with a mandrel roller; driving a shaft with a drive system having two hydraulic motors configured to rotationally drive the shaft; driving one of the rollers with the driven shaft, the driven shaft configured to rotationally drive the king roller; rotating the ring between the rollers; and applying pressure between the rollers with a hydraulic ram. 35. The method of claim 34, further comprising the steps of: moving the mandrel roller laterally to contact the ring; and releasing the mandrel roller from a roller holder. 36. The method of claim 35, further comprising the steps of: attaching the mandrel roller to the roller holder; and moving the mandrel roller laterally to separate from the ring. 37. The method of claim 34, wherein applying pressure further comprises the step of urging the mandrel roller toward the king roller with the hydraulic ram. 38. The method of claim 34, wherein driving the shaft further comprises the step of applying at least 2000 HP of driving force, and wherein applying pressure further comprises the step of applying at least 1000 tons of compressive force. 39. The method of claim 34, further comprising the step of stabilizing the ring by urging a roller attached to a stabilizing swing arm against the ring. 40. A method of expanding a ring, comprising the steps of: contacting the outside of the ring with a king roller; contacting the inside of the ring with a mandrel roller; driving a shaft with a drive system having two hydraulic motors configured to rotationally drive the shaft; driving one of the rollers with the driven shaft, the driven shaft configured to rotationally drive the mandrel roller; rotating the ring between the rollers; and applying pressure between the rollers with a hydraulic ram. 41. The method of claim 40, wherein applying pressure further comprises the step of urging the hydraulic ram toward the rollers. 42. The method of claim 40, wherein driving the shaft further comprises the step of applying at least 2000 HP of driving force, and wherein applying pressure further comprises the step of applying at least 1000 tons of compressive force.

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Ring mill apparatus and method

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Ring mill apparatus and method

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