CA1039576A - Pedestal wear plate for railway truck - Google Patents
Pedestal wear plate for railway truckInfo
- Publication number
- CA1039576A CA1039576A CA221,805A CA221805A CA1039576A CA 1039576 A CA1039576 A CA 1039576A CA 221805 A CA221805 A CA 221805A CA 1039576 A CA1039576 A CA 1039576A
- Authority
- CA
- Canada
- Prior art keywords
- wear plate
- side frame
- facing surface
- wear
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
Abstract
ABSTRACT
In a railway truck, a wear plate is provided on the side frame between the downwardly facing surface of the pedestal opening and the bearing adaptor on the bear-ing ant axle assembly. The wear plate is resiliently clipped onto the side frame, and stop means are provided to minimize movement of the wear plate relative to the side frame surface.
In a railway truck, a wear plate is provided on the side frame between the downwardly facing surface of the pedestal opening and the bearing adaptor on the bear-ing ant axle assembly. The wear plate is resiliently clipped onto the side frame, and stop means are provided to minimize movement of the wear plate relative to the side frame surface.
Description
:~03957~
This invention relates to a wear plate that is s?ecificall~ designed for convenient and removable instal-lation in the pedestal opening of cl railway side frame in order to prev~nt wear on the load bearing surface of the pedestal. Normally, a bearing adaptor is provided over the axle bearing, said adaptor having a slightly arcuate top surface which bears directly against a corresponding downwardly facing surface in the pedestal opening of the side frame.
In service, limited movement or frictional sliding occurs between the bearing adaptor and the pedestal surface, -~hich may cause worn spots on the frame, resulting in sloppiness and a weakening of the frame at a load bearing location. Repair of the frame surface is both expensive ~"
~.' ' ~'. :
and time consuming, since the worn surface must be ground -down and renewed by welding a plate in the opening.
The present invention provides means for protecting the downwardly facing surface in the pedestal opening of the side frame of railway truck from wear by a bearing adaptor, comprising a wear plate between the bearing adaptor and the surface, and means for resiliently clamping the sides of the wear plate to the adjoining side surfaces of the pedestal.
In the drawing, ;~
Figure 1 is a fragmentary elevational vi~w of one end of a railway truck side frame and axle, including -`
- 1 - d~
`~- ' l j S /, ~ ~
. :- . -. . . . .. ` , - . ..
" ` -~ 395~6 the wear plate of the present invention;
Figure 2 is a perspect:ive view, with portions cut away, of the side frame and axle assembly of Figure 1, further illustrating the component parts thereof in dis-assembly;
Figure 3 is a perspective view of the wear plate shown in Figures 1 and 2;
Figure 4 is a transverse sectional view taken along section line 4-4 of Figure l;
Figure 5 is a plan view of another embodiment of the wear plate of the present invention; and Figure 6 is a view similar to Figure 1 but further illustrating stops on the frame in engagement with the ends of the wear plate.
It will be understood to those skilled in the art that the drawings show only a fragmentary portion of a ~.
railway truck, which includes a pair of spaced side frames supported on wheel and axle assemblies, and a bolster con-nected between the side frames for supporting the car body.
Figure 1 illustrates one end of a side frame 10 terminating in a pedestal 12 in the form of a downwardly open pedestal jaw engaged over the axle 14 on which the car wheels are mounted.
As shown in Figures 2 and 4, a roller bearing 16 is carried on the axle 14 near the end thereof, and a bearing adaptor 18 is provided between the top portion of the bearing and the internal surfaces of the pedestal 12.
The downwardly facing surface of the adaptor 18 is curved at 20 to correspond to the cylindrical outer race of the ~039576 bearing 16, and ~he upper portion o~ the adaptor comprises a top slightly convex surface 22 which normally bears against a downwardly facing flat surface 24 in the pedestal opening. In addition, side surfaces 26 are pro-vided on the adaptor 18 in engagement with corresponding surfaces 28 in the pedestal opening. Thus the upper portion of the adaptor is generally rectangular so as to be received in the rectangular pedestal opening, although the adaptor corners are omitted or cut away to prevent galling of the corners in the pedestal opening.
The foregoing parts are conventional and details thereof are readily available to the public. It will also be understood that the pedestal at the other end of the side frame is identical to the one described above.
As shown in Figures 1-4, the wear plate 30 of the present invention is in the form of a rectangular base plate 32, said plate having a pair of integrally formed lips 34 extending upwardly from opposite sides thereof, ~id lips being adapted to resiliently clamp inward toward one another against the opposite side surfaces of the pedestal 12 adjoining the central portion of the downwardly facing surface 24. As shown, the lips 34 are coextensive with the length of the base plate 32, which facilitates fabrication of the wear plate from a single rectangular metal or steel sheet, although any suitable lip configura-tion may be employed. It will be noted that the base of -the lips 34 each bulge outwardly in an arc at 33 beyond the width of the base plate 32, and the upper edges 38 are inwardly spaced from the base of the lips but are also - - : .
~ 039576 flared out at their ends to facilitate installation.
The minimum dimension between the lips 34 is smaller than the width of the base plate 32 and the transverse thickness of the pedestal, such that the lips resiliently clamp against the sides of the side ~rame after ~he wear plate has been installed. The bulges 33 in the lips serve to accommodate corresponding bulges which are normally cast in the side frame, as shown in Figure 4.
The clamping action of the lips 34 against the side frame -serve to minimize side-to-side movement of the wear plate relative to the frame.
Additional means are provided to minimize move-ment of the wear plate on the downwardly facing surface 24 of the pedestal opening. The preferred means is shown in Figures 1-4 and comprises at least one, and preferably two or more, longitudinally and laterally spaced protrusions or ~ -convex bumps 40 in the upper surface of the base plate 32, and corresponding shallow depressions 42 (Fig. 4) in the downwardly facing surface 24 which conformably receive said bumps. Movement of the bumps 40 out of register with the depressions 42 is prevented because of the considerable load on the friction plate. The restraint feature serves primarily to prevent longitudinal movement of the plate into the corner of the pedestal opening, although it may be seen that lateral movement is also minimized thereby.
Figure 5 illustrates another version of a wear plate 60 having the same lips 62, but having the bumps 64 formed on the lips instead of the base plate. It is understood that corresponding recesses would be provided . . -................. . .
.. -:. ~ . . .
in the sides of the pedestal to recelve the bumps 64.
Figure 6 illustrates still another means of imposing longitudinal restraint on a wear plate 70 having the usual lips 72 in engagement with the sides of the pedestal. In this embodiment, the sides of the side frame are provided with pairs of longitudinally spaced stops 74 which engage the opposite end surfaces of the lips and prevent longitudinal movement of the plate.
In summary, the wear plate 30 of the present in-vention is essentially resiliently capped over the surface to be protected on the side frame, which prevents acci- i.
dental vertical dislodgment of the plate after installation.
The plate is centrally mounted against the downwardly fac-ing flat surface 24 of the pedestal opening, and the ends thereof are spaced from the corners of the opening, in order to prevent wear thereof by the plate. Since no welding or bolting of the plate is required, installation and removal of the plate may be effected very easily with simple tools In order to install the plate, the side frame 10 is lifted away from the axle 14, and the shallow recesses 42 are drilled in the downwardly facing surface 24, and the wear plate 30 is pushed onto the side frame, whereupon the truck may be reassembled.
... . .. . . . . . , .,............ . . ~, ~ .. ..... .
:' .
This invention relates to a wear plate that is s?ecificall~ designed for convenient and removable instal-lation in the pedestal opening of cl railway side frame in order to prev~nt wear on the load bearing surface of the pedestal. Normally, a bearing adaptor is provided over the axle bearing, said adaptor having a slightly arcuate top surface which bears directly against a corresponding downwardly facing surface in the pedestal opening of the side frame.
In service, limited movement or frictional sliding occurs between the bearing adaptor and the pedestal surface, -~hich may cause worn spots on the frame, resulting in sloppiness and a weakening of the frame at a load bearing location. Repair of the frame surface is both expensive ~"
~.' ' ~'. :
and time consuming, since the worn surface must be ground -down and renewed by welding a plate in the opening.
The present invention provides means for protecting the downwardly facing surface in the pedestal opening of the side frame of railway truck from wear by a bearing adaptor, comprising a wear plate between the bearing adaptor and the surface, and means for resiliently clamping the sides of the wear plate to the adjoining side surfaces of the pedestal.
In the drawing, ;~
Figure 1 is a fragmentary elevational vi~w of one end of a railway truck side frame and axle, including -`
- 1 - d~
`~- ' l j S /, ~ ~
. :- . -. . . . .. ` , - . ..
" ` -~ 395~6 the wear plate of the present invention;
Figure 2 is a perspect:ive view, with portions cut away, of the side frame and axle assembly of Figure 1, further illustrating the component parts thereof in dis-assembly;
Figure 3 is a perspective view of the wear plate shown in Figures 1 and 2;
Figure 4 is a transverse sectional view taken along section line 4-4 of Figure l;
Figure 5 is a plan view of another embodiment of the wear plate of the present invention; and Figure 6 is a view similar to Figure 1 but further illustrating stops on the frame in engagement with the ends of the wear plate.
It will be understood to those skilled in the art that the drawings show only a fragmentary portion of a ~.
railway truck, which includes a pair of spaced side frames supported on wheel and axle assemblies, and a bolster con-nected between the side frames for supporting the car body.
Figure 1 illustrates one end of a side frame 10 terminating in a pedestal 12 in the form of a downwardly open pedestal jaw engaged over the axle 14 on which the car wheels are mounted.
As shown in Figures 2 and 4, a roller bearing 16 is carried on the axle 14 near the end thereof, and a bearing adaptor 18 is provided between the top portion of the bearing and the internal surfaces of the pedestal 12.
The downwardly facing surface of the adaptor 18 is curved at 20 to correspond to the cylindrical outer race of the ~039576 bearing 16, and ~he upper portion o~ the adaptor comprises a top slightly convex surface 22 which normally bears against a downwardly facing flat surface 24 in the pedestal opening. In addition, side surfaces 26 are pro-vided on the adaptor 18 in engagement with corresponding surfaces 28 in the pedestal opening. Thus the upper portion of the adaptor is generally rectangular so as to be received in the rectangular pedestal opening, although the adaptor corners are omitted or cut away to prevent galling of the corners in the pedestal opening.
The foregoing parts are conventional and details thereof are readily available to the public. It will also be understood that the pedestal at the other end of the side frame is identical to the one described above.
As shown in Figures 1-4, the wear plate 30 of the present invention is in the form of a rectangular base plate 32, said plate having a pair of integrally formed lips 34 extending upwardly from opposite sides thereof, ~id lips being adapted to resiliently clamp inward toward one another against the opposite side surfaces of the pedestal 12 adjoining the central portion of the downwardly facing surface 24. As shown, the lips 34 are coextensive with the length of the base plate 32, which facilitates fabrication of the wear plate from a single rectangular metal or steel sheet, although any suitable lip configura-tion may be employed. It will be noted that the base of -the lips 34 each bulge outwardly in an arc at 33 beyond the width of the base plate 32, and the upper edges 38 are inwardly spaced from the base of the lips but are also - - : .
~ 039576 flared out at their ends to facilitate installation.
The minimum dimension between the lips 34 is smaller than the width of the base plate 32 and the transverse thickness of the pedestal, such that the lips resiliently clamp against the sides of the side ~rame after ~he wear plate has been installed. The bulges 33 in the lips serve to accommodate corresponding bulges which are normally cast in the side frame, as shown in Figure 4.
The clamping action of the lips 34 against the side frame -serve to minimize side-to-side movement of the wear plate relative to the frame.
Additional means are provided to minimize move-ment of the wear plate on the downwardly facing surface 24 of the pedestal opening. The preferred means is shown in Figures 1-4 and comprises at least one, and preferably two or more, longitudinally and laterally spaced protrusions or ~ -convex bumps 40 in the upper surface of the base plate 32, and corresponding shallow depressions 42 (Fig. 4) in the downwardly facing surface 24 which conformably receive said bumps. Movement of the bumps 40 out of register with the depressions 42 is prevented because of the considerable load on the friction plate. The restraint feature serves primarily to prevent longitudinal movement of the plate into the corner of the pedestal opening, although it may be seen that lateral movement is also minimized thereby.
Figure 5 illustrates another version of a wear plate 60 having the same lips 62, but having the bumps 64 formed on the lips instead of the base plate. It is understood that corresponding recesses would be provided . . -................. . .
.. -:. ~ . . .
in the sides of the pedestal to recelve the bumps 64.
Figure 6 illustrates still another means of imposing longitudinal restraint on a wear plate 70 having the usual lips 72 in engagement with the sides of the pedestal. In this embodiment, the sides of the side frame are provided with pairs of longitudinally spaced stops 74 which engage the opposite end surfaces of the lips and prevent longitudinal movement of the plate.
In summary, the wear plate 30 of the present in-vention is essentially resiliently capped over the surface to be protected on the side frame, which prevents acci- i.
dental vertical dislodgment of the plate after installation.
The plate is centrally mounted against the downwardly fac-ing flat surface 24 of the pedestal opening, and the ends thereof are spaced from the corners of the opening, in order to prevent wear thereof by the plate. Since no welding or bolting of the plate is required, installation and removal of the plate may be effected very easily with simple tools In order to install the plate, the side frame 10 is lifted away from the axle 14, and the shallow recesses 42 are drilled in the downwardly facing surface 24, and the wear plate 30 is pushed onto the side frame, whereupon the truck may be reassembled.
... . .. . . . . . , .,............ . . ~, ~ .. ..... .
:' .
Claims (10)
1. A wear plate for installation on a downward-ly facing surface in the pedestal opening of the side frame of a railway truck, said wear plate comprising a base member adapted to cover a portion of said downwardly facing surface, resilient means for releasably clamping said base member to said side frame, and means between said wear plate and said side frame to minimize relative move-ment therebetween.
2. The wear plate of Claim 1 wherein said resilient means comprise a pair of members extending upward from the sides of said base member and resiliently clamping against the adjoining side surfaces of the side frame, whereby said wear plate is resiliently capped over said downwardly facing surface.
3. The wear plate of Claim 2 wherein each of said members comprises an integrally formed lip projecting upward from the side of the base member.
4. The wear plate of Claim 3 wherein each of said lips has a bulge at the base thereof.
5. The wear plate of Claim 4 wherein the upper portion of said lips are spaced from each other for a distance which is less than the corresponding thickness of the side frame, and the ends of said lips are flared out-wardly.
6. The wear plate of Claim 1 wherein the means between said wear plate and said side frame to minimize relative movement therebetween comprises a plurality of protrusions on said base member, and a corresponding plurality of recesses in said downwardly facing surface receiving said protrusions.
7. The wear plate of Claim 1 wherein the means to minimize movement between said wear plate and said side frame comprises a plurality of protrusions on said resilient means, and a corresponding plurality of recesses in said side frame receiving said protrusions.
8. The wear plate of Claim 1 wherein the means to minimize movement between said wear plate and said side frame comprises a stop on said side frame in engagement with said wear plate.
9. The wear plate of Claim 8 wherein stops are provided at both ends of said wear plate and engage the resilient means thereof.
10. Means for protecting the downwardly facing surface in the pedestal opening of the side frame of railway truck from wear by a bearing adaptor, comprising a wear plate between said bearing adaptor and said surface, and means for resiliently clamping the sides of said wear plate to the adjoining side surfaces of said pedestal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US483648A US3897736A (en) | 1974-06-27 | 1974-06-27 | Pedestal wear plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1039576A true CA1039576A (en) | 1978-10-03 |
Family
ID=23920939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA221,805A Expired CA1039576A (en) | 1974-06-27 | 1975-03-11 | Pedestal wear plate for railway truck |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3897736A (en) |
| CA (1) | CA1039576A (en) |
Families Citing this family (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4034681A (en) * | 1975-08-04 | 1977-07-12 | Amsted Industries Incorporated | Pedestal roof wear liner |
| US4192240A (en) * | 1978-04-12 | 1980-03-11 | Amsted Industries Incorporated | Pedestal roof wear liner |
| US4203371A (en) * | 1978-07-07 | 1980-05-20 | Transdyne, Inc. | Resilient pedestal wear plate |
| US4261472A (en) * | 1979-09-26 | 1981-04-14 | Dayco Corporation | Railway coupler wear member |
| US4363278A (en) * | 1980-09-11 | 1982-12-14 | Amsted Industries Incorporated | Resilient railway truck bearing adaptor |
| US4785740A (en) * | 1987-05-19 | 1988-11-22 | General Standard Company | Dual purpose wear plate |
| US5150658A (en) * | 1990-11-23 | 1992-09-29 | Unity Railway Supply Co., Inc. | Railcar adapter |
| US5261332A (en) * | 1990-11-23 | 1993-11-16 | Unity Railway Supply Co., Inc. | Railcar adapter |
| US5425312A (en) * | 1991-07-15 | 1995-06-20 | Trans-Dyne Incorporated | Stabilized pedestal wear plate |
| US5237933A (en) * | 1991-07-25 | 1993-08-24 | Lord Corporation | Service-life, low-profile, retrofittable, elastomeric mounting for three-piece, railroad-car trucks |
| US5404826A (en) * | 1991-08-08 | 1995-04-11 | Pennsy Corporation | Bearing adapter for railway trucks having downward depending ends on adapter plate for protecting the adapter thrust lugs |
| US5544591A (en) * | 1995-02-24 | 1996-08-13 | Standard Car Truck Company | Stabilized roller bearing adapter |
| US5924366A (en) * | 1998-03-27 | 1999-07-20 | Buckeye Steel Castings | Side frame pedestal roof with rocker seats |
| US6234083B1 (en) | 1998-07-21 | 2001-05-22 | Transdyne, Inc. | Resilient clip-on wear plate |
| US7004079B2 (en) | 2001-08-01 | 2006-02-28 | National Steel Car Limited | Rail road car and truck therefor |
| US7255048B2 (en) | 2001-08-01 | 2007-08-14 | Forbes James W | Rail road car truck with rocking sideframe |
| US6895866B2 (en) | 2001-08-01 | 2005-05-24 | National Steel Car Limited | Rail road freight car with damped suspension |
| US6874426B2 (en) * | 2002-08-01 | 2005-04-05 | National Steel Car Limited | Rail road car truck with bearing adapter and method |
| US7823513B2 (en) | 2003-07-08 | 2010-11-02 | National Steel Car Limited | Rail road car truck |
| EP1651498B1 (en) | 2003-07-08 | 2018-10-17 | National Steel Car Limited | Rail road car truck and members thereof |
| US7631603B2 (en) | 2004-12-03 | 2009-12-15 | National Steel Car Limited | Rail road car truck and bolster therefor |
| US20060137565A1 (en) | 2004-12-23 | 2006-06-29 | National Steel Car Limited | Rail road car truck and bearing adapter fitting therefor |
| US9637143B2 (en) | 2013-12-30 | 2017-05-02 | Nevis Industries Llc | Railcar truck roller bearing adapter pad systems |
| CN102085872A (en) * | 2011-01-13 | 2011-06-08 | 南车长江车辆有限公司 | Snap-in side frame guide frame wearing plate device of steering bogie |
| US8567320B2 (en) | 2011-01-24 | 2013-10-29 | Pennsy Corporation | Resilient pad for railroad vehicle |
| US8695508B2 (en) * | 2011-03-14 | 2014-04-15 | Pennsy Corporation | Malleable resilient pedestal wear plate |
| US10358151B2 (en) | 2013-12-30 | 2019-07-23 | Nevis Industries Llc | Railcar truck roller bearing adapter-pad systems |
| US10569790B2 (en) | 2013-12-30 | 2020-02-25 | Nevis Industries Llc | Railcar truck roller bearing adapter-pad systems |
| US9580087B2 (en) | 2013-12-30 | 2017-02-28 | Nevis Industries Llc | Railcar truck roller bearing adapter pad systems |
| US9180893B2 (en) * | 2014-04-11 | 2015-11-10 | Gunderson Llc | Protective structure for tank top fittings |
| USD762521S1 (en) | 2014-12-05 | 2016-08-02 | Nevis Industries Llc | Adapter for railcar truck |
| USD762520S1 (en) | 2014-12-05 | 2016-08-02 | Nevis Industries Llc | Adapter pad for railcar truck |
| USD753545S1 (en) | 2014-12-05 | 2016-04-12 | Nevis Industries Llc | Adapter pad for railcar truck |
| USD753544S1 (en) | 2014-12-05 | 2016-04-12 | Nevis Industries Llc | Adapter pad for railcar truck |
| USD753022S1 (en) | 2014-12-05 | 2016-04-05 | Nevis Industries Llc | Adapter pad for railcar truck |
| USD753546S1 (en) | 2015-05-13 | 2016-04-12 | Nevis Industries Llc | Adapter pad for railcar truck |
| USD753547S1 (en) | 2015-05-13 | 2016-04-12 | Nevis Industries Llc | Adapter pad for railcar truck |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1828280A (en) * | 1928-03-05 | 1931-10-20 | Nat Malleable & Steel Castings | Railway truck |
| US2357619A (en) * | 1942-12-18 | 1944-09-05 | American Steel Foundries | Pedestal snubber |
| US3380400A (en) * | 1965-07-08 | 1968-04-30 | Standard Car Truck Co | Cushioned lateral motion axle adaptor |
| BE754299A (en) * | 1969-08-04 | 1971-01-18 | Midland Ross Corp | RAILWAY WAGON BOGGIE |
| US3638582A (en) * | 1969-12-03 | 1972-02-01 | Buckeye Steel Castings Co | Resilient bearing mounting |
| US3785298A (en) * | 1972-02-16 | 1974-01-15 | Buckeye Steel Castings Co | Cushion mounting bearing adaptor for railway trucks |
-
1974
- 1974-06-27 US US483648A patent/US3897736A/en not_active Expired - Lifetime
-
1975
- 1975-03-11 CA CA221,805A patent/CA1039576A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3897736A (en) | 1975-08-05 |
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