Method and device for prestressing tapered roller bearings of a rolling mill roller
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B21K-001/76
B21K-001/00
출원번호
UP-0576556
(2004-11-18)
등록번호
US-7578061
(2009-09-08)
우선권정보
DE-103 58 869(2003-12-16)
국제출원번호
PCT/EP04/013104
(2004-11-18)
§371/§102 date
20060418
(20060418)
국제공개번호
WO05/061140
(2005-07-07)
발명자
/ 주소
Guempel, Markus
Tammert, Stefan
출원인 / 주소
SMS Demag AG
대리인 / 주소
Abelman, Frayne & Schwab
인용정보
피인용 횟수 :
1인용 특허 :
6
초록▼
For preloading a tapered roller bearing (1) secured with a conical seat on a tapering roll neck (3) of a roll (2), in particular, a back-up roll, arranged in a roll stand by means of a chock (4), by application of a hydraulic pressure thereto, the bearing inner ring (18), rollers, (17) and the beari
For preloading a tapered roller bearing (1) secured with a conical seat on a tapering roll neck (3) of a roll (2), in particular, a back-up roll, arranged in a roll stand by means of a chock (4), by application of a hydraulic pressure thereto, the bearing inner ring (18), rollers, (17) and the bearing outer ring (17) of the tapered roller bearing (1) are subjected to pressure produced during rolling and are radially preloaded against the roll (2). An annular pressure-applying device is supported on the roll (2) by an axial bearing provided on the roll end neck, is arranged against the bearing outer ring of the tapered roller bearing (1) and, upon application of pressure, displaces the chock (4) with the bearing outer ring (13) in a direction toward the roll body (15) or the roll (2) in an opposite direction.
대표청구항▼
The invention claimed is: 1. A method of preloading a tapered roller bearing (1) secured with a conical seat on a tapering roll neck (3) of a roll (2), in particular, a back-up roll, arranged in a roll stand by means of a chock (4), by application of a hydraulic pressure thereto, a bearing inner ri
The invention claimed is: 1. A method of preloading a tapered roller bearing (1) secured with a conical seat on a tapering roll neck (3) of a roll (2), in particular, a back-up roll, arranged in a roll stand by means of a chock (4), by application of a hydraulic pressure thereto, a bearing inner ring (18), rollers, (17) and a bearing outer ring (13) of the tapered roller bearing (1) being subjected to pressure produced during rolling and being radially preloaded against the roll (2), characterized in that the tapered roller bearing (1) is preloaded by an annular pressure applying device (5) arranged on each side of the roll (2) in the chock (4) and supported relative to the roll (2), and in that upon application of pressure, the pressure applying device (5) displaces the chock (4) with the bearing outer ring (13) in a direction toward the roll (2) or displaces the roll (2) in an opposite direction. 2. A method according to claim 1, characterized in that the tapered roller bearing (1) is preloaded with a pre-set hydraulic pressure. 3. A method according to claim 1, characterized in that the tapered roller bearing (1) is preloaded in a controlled manner dependent on the rolling force. 4. A device for preloading a tapered roller bearing (1) secured with a conical seat on a tapering roll neck (3) of a roll (2), in particular, a back-up roll, arranged in a roll stand by means of a chock (4), by application of a hydraulic pressure thereto, with a bearing inner ring (18), rollers (17) and a bearing outer ring (13) of the tapered roller bearing (1) being subjected to pressure produced during rolling and being radially preloaded against the roll (2), characterized in that an annular pressure-applying device (5) is supported on the roll (2) by an axial bearing (9) provided on the roll end neck (8), is arranged against the bearing outer ring (13) of the tapered roller bearing (1) and, upon application of pressure, displaces the chock (4) with the bearing outer ring (13) in a direction toward the roll (2) or displaces the roll (2) in an opposite direction. 5. A device according to claim 4, characterized in that the pressure-applying device (5) is a ring-shaped cylinder (7) with a plurality of separate pistons (6). 6. A device according to claim 4, characterized in that the pressure-applying device (5) is an annular piston. 7. A device according to claim 4, characterized in that the pressure-applying device (5) and the axial bearing (9) are arranged in the chock (4). 8. A device according to claim 4, characterized in that between the pressure-applying device (5) and the bearing outer ring (13) of the tapered roller bearing (1), a thrust ring (11) is provided. 9. A device according to claim 8, characterized in that the thrust ring (11) is formed as an extending radially inwardly collar (12) formed as one-piece with the chock (4).
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이 특허에 인용된 특허 (6)
Nishida Masahiro (Osaka JPX), Back-up roll in a rolling mill.
Moritz Werner (Siegen DEX) Barten Axel (Siegen DEX), Device for positioning and locking a chock on a roll pin during installation of a set of rolls in or removal from a roll.
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