US3918770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivoted bearing pad apparatus and restraining arrangement therefor
Assignee: Allis Chalmers Corp
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Filing: 1974-06-12
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Granted: 1975-11-11
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Expires: 1994-06-12
Abstract
Abstract An arrangement for restraining pivoted bearing pads of a pivoted pad journal bearing against movement from an approximate required location and for maintaining a substantially proper circumferential distance between adjacent bearing pads while still allowing sufficient freedom of pivotal movement to the respective bearing pads as required, such as pivotal movement required for formation of the oil film between the bearing pads and the rotating journal. A pair of adjacent pivoted bearing pads are each respectively pivotally connected to a connecting link between the two pads, with the connecting link and its pivoted connections to the bearing pads lying on substantially a common line with the pivot points of the two connected bearing pads. This construction provides a geometric configuration which permits small pivotal movements of the connected pivoted bearing pads with very little resisting movement. A plurality of pivoted bearing pads (such as four, for example) may be connected in the manner just described, and one pad or link of the plurality should preferably be fastened to the stationary support to prevent simultaneous translational motion of all pads in a circumferential direction. A further advantage of the subject construction is that it maintains substantial parallelism in a circumferential direction between the shoulders of the journal or trunnion and the corresponding facing axial ends of the bearing pad by preventing excessive rotation of the bearing pad about its radial axis to thereby insure maintenance of a satisfactory hydrodynamic oil film at the interface between the journal and the pivoted bearing pad.
Inventors
- 👤 Keith E Rouch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:45
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/02; F16C13/04; F16C17/00; F16C17/02; F16C17/03
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
126 words
A journal bearing of the pivoted pad type comprising a pair of circumferentially spaced pivoted bearing pads positioned contiguous each other on a stationary supporting structure, each bearing pad including a corresponding pivot support means adapting the respective bearing pad for pivotal movement on the stationary supporting structure, each of said pivot support means having a pivot point about which the corresponding bearing pad pivots, a link member pivotally connected to contiguous ends of the respective Pivoted bearing pads of said pair, and means carried by the stationary supporting structure and anchoring said link member and said bearing pads against substantial translational movement in a circumferential direction relative to said supporting structure but permitting pivotal movement of said link member and of said pivoted bearing pads.
Claim 2
Dependent Claim
126 words
A journal bearing of the pivoted pad type comprising a pair of circumferentially spaced pivoted bearing pads positioned contiguous each other on a stationary supporting structure, each bearing pad including a corresponding pivot support means adapting the respective bearing pad for pivotal movement on the stationary supporting structure, each of said pivot support means having a pivot point about which the corresponding bearing pad pivots, a link member pivotally connected to contiguous ends of the respective Pivoted bearing pads of said pair, and means carried by the stationary supporting structure and anchoring said link member and said bearing pads against substantial translational movement in a circumferential direction relative to said supporting structure but permitting pivotal movement of said link member and of said pivoted bearing pads.
Claim 3
Dependent Claim
80 words
A journal bearing as defined in claim 1 comprising in excess of two circumferentially spaced pivoted bearing pads, a separate link member pivotally connected between each pair of contiguous bearing pads, whereby all of said bearing pads are connected in series with each other, and means anchoring one of said link members to said stationary supporting structure whereby to prevent any substantial simultaneous translational movement in a circumferential direction of the series-connected pivoted bearing pads relative to said supporting structure.
Claim 4
Dependent Claim
189 words
A journal bearing of the pivoted pad type comprising a pair of circumferentially spaced pivoted bearing pads positioned contiguous each other on a stationary supporting structure, each bearing pad including a corresponding pivot support means adapting the respective bearing pad for pivotal movement on the stationary supporting structure, each of said pivot support means having a pivot point about which the corresponding bearing pad pivots, a link member pivotally connected to contiguous ends of the respective pivoted bearing pads of said pair, the journal member journalled in said bearing being provided with a countersunk journal surface with which a given bearing pad is in bearing relation, said countersunk journal surface being bounded at the respective opposite axial ends thereof by shoulders on said journal, each axial end of said given bearing pad facing and being substantially parallel relation in a circumferential direction to a corresponding shoulder on said journal, said link member tending to maintain said axial ends of said given bearing pad substantially in said parallel relation to their respective corresponding shoulders on said journal by preventing any excessive rotation of the bearing pad about its radial axis.
Claim 5
Dependent Claim
189 words
A journal bearing of the pivoted pad type comprising a pair of circumferentially spaced pivoted bearing pads positioned contiguous each other on a stationary supporting structure, each bearing pad including a corresponding pivot support means adapting the respective bearing pad for pivotal movement on the stationary supporting structure, each of said pivot support means having a pivot point about which the corresponding bearing pad pivots, a link member pivotally connected to contiguous ends of the respective pivoted bearing pads of said pair, the journal member journalled in said bearing being provided with a countersunk journal surface with which a given bearing pad is in bearing relation, said countersunk journal surface being bounded at the respective opposite axial ends thereof by shoulders on said journal, each axial end of said given bearing pad facing and being substantially parallel relation in a circumferential direction to a corresponding shoulder on said journal, said link member tending to maintain said axial ends of said given bearing pad substantially in said parallel relation to their respective corresponding shoulders on said journal by preventing any excessive rotation of the bearing pad about its radial axis.
Claim 6
Dependent Claim
126 words
A journal bearing of the pivoted pad type comprising a pair of circumferentially spaced pivoted bearing pads positioned contiguous each other on a stationary supporting structure, each bearing pad including a corresponding pivot support means adapting the respective bearing pad for pivotal movement on the stationary supporting structure, each of said pivot support means having a pivot point about which the corresponding bearing pad pivots on said stationary supporting structure, a link member pivotally connected to contiguous ends of the respective pivoted bearing pads of said pair, said link member and the pivotal connections thereof to said contiguous pivoted bearing pads and the respective pivot points of the respective pivot support means of said pair of pivoted bearing pads all lying on substantially a common line.
Claim 7
Dependent Claim
126 words
A journal bearing of the pivoted pad type comprising a pair of circumferentially spaced pivoted bearing pads positioned contiguous each other on a stationary supporting structure, each bearing pad including a corresponding pivot support means adapting the respective bearing pad for pivotal movement on the stationary supporting structure, each of said pivot support means having a pivot point about which the corresponding bearing pad pivots on said stationary supporting structure, a link member pivotally connected to contiguous ends of the respective pivoted bearing pads of said pair, said link member and the pivotal connections thereof to said contiguous pivoted bearing pads and the respective pivot points of the respective pivot support means of said pair of pivoted bearing pads all lying on substantially a common line.
Claim 8
Dependent Claim
99 words
A journal bearing as defined in claim 4 comprising in excess of two circumferentially spaced pivoted bearing pads on said stationary supporting structure, a separate link member pivotally connected between each pair of contiguous bearing pads, whereby all of said bearing pads are connected in series with each other, each link member and the pivotal connections thereof to its corresponding pair of contiguous pivoted bearing pads and the respective pivot points of the respective corresponding pivot support means of said corresponding pair of pivoted bearing pads connected by the given link member all lying on substantially a common line.
Claim 9
Dependent Claim
109 words
A journal bearing of the pivoted pad type comprising a pair of circumferentially spaced pivoted bearing pads positioned contiguous each other on a stationary supporting structure, each of said bearing pads having a pivot point about which the corresponding bearing pad pivots on said stationary supporting structure, a link member pivotally connected to contiguous ends of the respective pivoted bearing pads of said pair, said link member and the pivotal connections thereof to said contiguous pivoted bearing pads and the respective pivot points of said pair of pivoted bearing pads about which the respective bearing pads pivot on said stationary supporting structure all lying on substantially a common line.
Claim 10
Dependent Claim
109 words
A journal bearing of the pivoted pad type comprising a pair of circumferentially spaced pivoted bearing pads positioned contiguous each other on a stationary supporting structure, each of said bearing pads having a pivot point about which the corresponding bearing pad pivots on said stationary supporting structure, a link member pivotally connected to contiguous ends of the respective pivoted bearing pads of said pair, said link member and the pivotal connections thereof to said contiguous pivoted bearing pads and the respective pivot points of said pair of pivoted bearing pads about which the respective bearing pads pivot on said stationary supporting structure all lying on substantially a common line.
Claim 11
Dependent Claim
95 words
A journal bearing as defined in claim 6 comprising in excess of two circumferentially spaced pivoted bearing pads on said stationary supporting structure, a separate link member pivotally connected between each pair of contiguous bearing pads, whereby all of said bearing pads are connected in series with each other, each link member and the pivotal connections thereof to its corresponding pair of contiguous pivoted bearing pads and the respective pivot points about which said corresponding pair of contiguous pivoted bearing pads respectively pivot on said stationary supporting structure all lying on substantially a common line.
References Cited (Backward Citations)
US3022123A
Cited
US3604768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |