[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 B61F-015/22 F16C-033/76 F16C-035/063 F16C-033/78
출원번호	US-0181813 (2014-02-17)
등록번호	US-9127769 (2015-09-08)
발명자 / 주소	Buchanan, Alan D. Brister, Stephen E. Schumacher, Jeffrey W.
출원인 / 주소	The Timken Company
대리인 / 주소	Michael Best & Friedrich LLP
인용정보	피인용 횟수 : 0 인용 특허 : 30

초록
▼

An axle has a journal to which an antifriction bearing is fitted on an enlarged or dust guard section located beyond the journal, with a fillet leading from the journal up to the enlarged section. A backing ring fits over and against the fillet of the journal and has a counterbore that receives the adjacent end of the enlarged section. A stabilizing ring 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 that fits over the enlarged section of the axle with an interference fit and a more flexible compression member 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 combination comprising: a backing ring located around the fillet and having a counterbore that receives an 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 shaft and having an axially directed leg that fits over the enlarged section with an interference fit and a radially directed flange; anda compression member engaging the rigidifying element and 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;wherein the backing ring has a shoulder at an end of the counterbore, and the compression member is located between the flange and the shoulder of the counterbore. 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 1, wherein the rigidifying element is located between the compression member and the enlarged section of the shaft. 4. The combination according to claim 1, 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. 5. The combination according to claim 1, wherein the compression member has side surfaces that are convex. 6. The combination according to claim 1, wherein the compression member has side surfaces that are generally planar and parallel. 7. The combination according to claim 1, wherein the compression member has side surfaces that are concave. 8. The combination according to claim 1, wherein the axially directed leg generally extends from a corner of the rigidifying element toward the shoulder of the backing ring. 9. The combination according to claim 1, wherein the axially directed leg is arcuate. 10. The combination according to claim 1, wherein the compression member has at least one side surface provided with at least one cavity therein. 11. 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 combination 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 a radially directed flange, the rigidifying element positioned within the counterbore of the backing ring;an annular compression member engaging the rigidifying element and 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;wherein the backing ring has a shoulder at an end of the counterbore, and the axially directed leg generally extends from a corner of the rigidifying element toward the shoulder of the backing ring. 12. The combination according to claim 11, wherein the compression member is formed from a polymer. 13. The combination according to claim 11, wherein the compression member of the stabilizing ring allows microaxial movement of the backing ring to reduce wear on the back face of the inner race. 14. The combination according to claim 11, wherein the compression member is located between the flange and the shoulder of the backing ring. 15. The combination according to claim 11, wherein the axially directed leg is arcuate. 16. The combination according to claim 11, wherein the compression member has at least one side surface provided with at least one cavity therein. 17. 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 combination comprising: a backing ring located around the fillet and having a counterbore that receives an 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 shaft and having an axially directed leg that fits over the enlarged section with an interference fit and a radially directed flange; anda compression member engaging the rigidifying element and a surface of the counterbore in the backing ring and being in a state of compression between the surface 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;wherein the counterbore has a concave surface that is presented toward and surrounds the enlarged section of the shaft and a shoulder located at an end of the counterbore, and the compression member bears against the concave surface and the shoulder. 18. The combination according to claim 17, wherein the compression member is located between the radial directed flange and the shoulder. 19. The combination according to claim 17, wherein the rigidifying element is located between the compression member and the enlarged section of the shaft. 20. The combination according to claim 17, wherein the axially directed leg generally extends from a corner of the rigidifying element toward the shoulder. 21. The combination according to claim 17, wherein the axially directed leg is arcuate. 22. The combination according to claim 17, wherein the compression member has at least one side surface provided with at least one cavity therein.

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특허 상세정보

Stabilized backing ring and stabilizing ring therefor

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특허 상세정보

Stabilized backing ring and stabilizing ring therefor

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이 특허에 인용된 특허 (30)

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