[특허]Stabilized backing ring and stabilizing ring therefor

The Timken Company

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Stabilized backing ring and stabilizing ring therefor

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16C-033/72 F16J-015/32 B41F-015/22 F16C-033/76 F16C-035/063 F16C-033/78
미국특허분류(USC)	384/459; 384/489
출원번호	US-0239163 (2012-07-27)
등록번호	US-9016950 (2015-04-28)
국제출원번호	PCT/US2012/048630 (2012-07-27)
§371/§102 date	20140501 (20140501)
국제공개번호	WO2013/028312 (2013-02-28)
발명자 / 주소	Buchanan, Alan D. Brister, Stephen E.
출원인 / 주소	The Timken Company
대리인 / 주소	Michael Best & Friedrich LLP
인용정보	피인용 횟수 : 1 인용 특허 : 30

초록
▼

An axle (A) has a journal (2) to which an antifriction bearing (B) is fitted on an enlarged or dust guard section (4) located beyond the journal, with a fillet (6) leading from the journal up to the enlarged section. A backing ring (R) fits over and against the fillet of the journal and has a counterbore (48) that receives the adjacent end of the enlarged section. A stabilizing ring (S) fits into the counterbore of the backing ring and around the enlarged section of the journal to stabilize the backing ring and thereby reduce radial and circumferential movement between it and the fillet of the journal. The stabilizing ring includes a rigidifying element (54) that fits over the enlarged section of the axle with an interference fit and a more flexible compression member (56) that lies within the counterbore where it exists in a state of compression between the counterbore and the rigidifying element. The stabilizing ring allows some microaxial movement of the backing ring.

대표
청구항
▼

1. In combination with a shaft having a journal to which a bearing is fitted and an enlarged section with a fillet leading from the journal to the enlarged section; the improvement comprising: a backing ring located around the fillet and having a counterbore that receives the end of the enlarged section adjacent to the fillet; anda stabilizing ring for reducing movement between the backing ring and the fillet, the stabilizing ring including: a rigidifying element located around the enlarged section of the axle; anda compression member located on the rigidifying element and engaging a surface of the counterbore in the backing ring, the compression member being in a state of compression between the surface of the counterbore in the backing ring and the rigidifying element, the compression member being formed from a material that is more flexible than the material from which the rigidifying element is formed. 2. The combination according to claim 1 wherein the rigidifying element is located in the counterbore of the backing ring. 3. The combination according to claim 2 wherein the rigidifying element is located between the compression member and the enlarged section of the shaft. 4. The combination according to claim 3 wherein the rigidifying element has an axially directed leg that fits over the enlarged section of the shaft with an interference fit and a radially directed flange. 5. The combination according to claim 4 wherein the backing ring has a shoulder at the end of the counterbore and the flange of the rigidifying element is located between the shoulder and the compression member. 6. The combination according to claim 3 wherein the counterbore has a concave surface that is presented toward and surrounds the enlarged section of the shaft, and the compression member bears against the concave surface. 7. The combination according to claim 3 wherein the compression member has side surfaces that are convex. 8. The combination according to claim 3 wherein the compression member has side surfaces that are generally planar and parallel. 9. The combination according to claim 3 wherein the compression member has side surfaces that are concave. 10. A stabilizing ring for stabilizing a backing ring over the fillet at the end of a journal on a shaft, said stabilizing ring comprising: an annular rigidifying element having an axially directed leg and a radially directed flange that are joined together at a corner, the axially directed leg terminating at a distal end spaced from the flange; andan annular compression member coupled to the rigidifying element and located around the axial leg and along the radial flange of the rigidifying element such that the compression member does not extend axially beyond the distal end of the axially directed leg, the modulus of elasticity for the material from which the compression member is formed being less that the modulus of elasticity for the material from which the rigidifying element is formed. 11. A stabilizing ring according to claim 10 wherein the axially directed leg of the rigidifying member is arcuate in cross section and presents a concave surface toward the compression member. 12. In combination with an axle that defines an axis and has a journal and an enlarged section aligned with the journal and a fillet at which the journal leads up to the enlarged section and with a bearing including an inner race that fits over the journal and has a back face that is presented toward the fillet; the improvement comprising: a backing ring that fits over the journal between the fillet and the inner race of the bearing, the backing ring being against the fillet and having a lip that projects over the enlarged section and contains a counterbore that receives the enlarged section; anda stabilizing ring located within the counterbore of the backing ring between the lip of the backing ring and the enlarged section of the axle, the stabilizing ring comprising: a rigidifying element formed from a generally rigid material and having an axially directed leg fitted with an interference fit around the enlarged section of the axle and within the counterbore of the backing ring; andan annular compression member on the rigidifying element and engaging a surface of the counterbore in the backing ring, the compression member compressed between the lip of the backing ring and the axially directed leg of the rigidifying element, the compression member being formed from a material having a modulus of elasticity that is less than the modulus of elasticity for the material from which the rigidifying element is formed. 13. The combination according to claim 12 wherein the rigidifying element of the stabilizing ring also has a generally radially directed flange attached to the axially directed leg. 14. The combination according to claim 13 wherein the backing ring has a shoulder at the end of its counterbore and the radially directed flange of the rigidifying element lies between the shoulder and the compression member. 15. The combination according to claim 12 wherein the compression member is formed from a polymer. 16. In combination with a shaft having a journal to which a bearing is fitted and an enlarged section with a fillet leading from the journal to the enlarged section; the improvement comprising: a backing ring located around the fillet and having a counterbore that receives the end of the enlarged section adjacent to the fillet; anda stabilizing ring for reducing movement between the backing ring and the fillet, the stabilizing ring including: a rigidifying element located around the enlarged section of the axle; anda compression member located on the rigidifying element and being in a state of compression between the surface of the counterbore in the backing ring and the enlarged section of the axle, the compression member being formed from a material that is more flexible than the material from which the rigidifying element is formed;wherein the counterbore has a concave surface that is presented toward and surrounds the enlarged section of the shaft, and the compression member bears against the concave surface. 17. The combination according to claim 16 wherein the rigidifying element has an axially directed leg that fits over the enlarged section of the shaft with an interference fit and a radially directed flange. 18. The combination according to claim 16 wherein the rigidifying element is located between the compression member and the enlarged section of the shaft.

이 특허에 인용된 특허 (30)

이 특허를 인용한 특허 피인용횟수: 1

Johansson, David; Duguet, Michael; Ussai, Mark A.; Duchassin, Arnaud; Le Moigne, Thierry; Repesse, Jonathan. Backing ring assembly for railcar axle bearings. USP2017109789887.

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Stabilized backing ring and stabilizing ring therefor

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이 특허에 인용된 특허 (30)

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Stabilized backing ring and stabilizing ring therefor

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이 특허에 인용된 특허 (30)

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IPC 상세정보(version : 201201)

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