CA1213472A - Bolster gib spacing on roller bearing truck - Google Patents
Bolster gib spacing on roller bearing truckInfo
- Publication number
- CA1213472A CA1213472A CA000425621A CA425621A CA1213472A CA 1213472 A CA1213472 A CA 1213472A CA 000425621 A CA000425621 A CA 000425621A CA 425621 A CA425621 A CA 425621A CA 1213472 A CA1213472 A CA 1213472A
- Authority
- CA
- Canada
- Prior art keywords
- bolster
- side frame
- gib
- gob
- clearance
- 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
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Braking Arrangements (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Rolling Contact Bearings (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Abstract
ABSTRACT
The present invention relates to a railway truck including a side frame and a bolster. The bolster has two ends, each end having two sets of inner and outer bolster gibs. Each set of inner and outer bolster gibs form a pocket on the bolster to contact a side frame column. The preferred clearance from the side frame column to the inner bolster gib is equal to or greater than the distance between the side frame column to the outer bolster gib.
-i-
The present invention relates to a railway truck including a side frame and a bolster. The bolster has two ends, each end having two sets of inner and outer bolster gibs. Each set of inner and outer bolster gibs form a pocket on the bolster to contact a side frame column. The preferred clearance from the side frame column to the inner bolster gib is equal to or greater than the distance between the side frame column to the outer bolster gib.
-i-
Description
L3~7Z
BOLSTER GOB SPACING ON ROLLER BEARING TRUCKS
Background of the Invention queue present invention relates generally to railway trucks, and moxie particularly to a railway truck hatting a bolster received in two side frames warily inner arid outer 3aolster gobs foci pockets Jo receive the side frame columns.
The presence of such bolster gobs is Noel prom patents such as U. S. Patent No. 3,109,387. however, aye patent is mainly concerned with side frame s ion lugs which limit the horizontal end rotative movement of the bolster within the side frames.
It has bee discovered that the side frames in such railway trucks tend to move inward Howard eta ho other during service. The reason or use tendency is unknown, but a greeter Mormon is suspected under loaded car conditions Accordirlgly, excessive ionic bolster gob wear has been experienced with minimal o'er gob wear OWE course such gob wear is due to ye side frames tendency to move inward toward each other, whereby the inter gobs axe contacted by the side Erase columns.
exasnple of such inner bolster gib-side fume clime wear was obtained Tom a heavy duty Association of American .- Railroads AWRY) standard railway truck after 480,000 miles of service . The immure bolster gob had worn 0 . 211 inch ( O . 536 cm) aTld the side Erase column contacting the inter bolster gob had worn 0.172 inch (0.437 cm). The outer bolster gob showed no wear and the side frame column con-ticketing such outer bolster gob also showed no wear.
I' I
The present Associa~iorl ox American Railroads (JAR) standard or heavy duty railway tucks is to provide for an initial, non-woxn inner bolster gob side frame column spacing of 1/4 inch I . 63 cm) and an outer bolster gib-slde 5 frump column spacing ox 5/8 inch if, 58 cm) . Such a spacing ;~. - arrangement has resulted in the excessive inner gob wear discussed above. Such inner bolster gob and contacting side frame column wear is noted to take place mostly in tile first one or two years of success o the railway truck. After 10 this initial wear in period little further wear is believed to occur.
Accordingly, it is a object of the present invention to provide a railway truck which exhibits lessened firmer bolster gob wear and improved service life for the boy stir 15 and side frames of the truck.
.
go The present venison provides a railway truck having a ballast supported irk two side frames. The bolster has two sets of inner and outer bolster gobs at e then end thereof, such gobs forming a pocJcek to receive the side frame columns.
20 The clearance between the inrler gob and the ire frame column is inquired prom the AJAR standard arid the clearance been the outer gob and the side tame coluIlLn is decreased from the Ajar standard. A preferred relation 1: between the inner and outer gib-side frame column clearances has been 25 wound to be where the inner gib-side- frame column clearance is equal Jo or slightly greater thasl the outer gib-side frame column clearance.
~l3~7;~
In particular, the present invention provides a railway truck comprising a bolster and two side frames, said bolster being supported within said side frames, said bolster including at each end whereof an inner bolster gob and an outer bolster gin, each such gob extending outward from the bolster to - form a pocket on the bolster to contact the side frame, the clearance between the inner bolstP~ gob and the side frame being increased from the AJAR standard of 1/4 inch to about 1/2 inch, and the clearance between the outer bolster gob and the side frame column being reduced from the AIR standard of 5/8 inch to about I inch.
he present invention reduces the excessive Remount of inner gob wear, while maintaining the total inner and out-gob clearance required by the AJAR such that a long service life is obtained before the maximum JAR standard of 1 1/2 inches (3.81 cm) of total clearance between the inner and outer gins and the side frame Callahan is reached and repair it required.
.
I the drawing, a top partial view ox the bolster-side frame of the present invention is shown.
- Detailed-De Croatia of the Present Invention I, In the drawing a partial top view of owe side ox bolster 10 is shown. Side frame columns 12 and 14 with respective worry plates 15 and 17 are also shown as nearly abutting bolster 10.
I
The end of bolster 10 is shown to have two sets of inner bolster gobs 16 and 24 and outer bolster gobs 18 and 26 which exit transversely outward prom the longitudinal axis of bolster 10. Side frame column 12 has a stop lug pa extending outward from the longitudinal axis of side frame column 12, and side frame column 14 has a stow lug 22 extending outward prom the longitudinal axis of side frame clime 14.
The space between inner bolster gobs 16 and 24 and side frame columns I and 14 is increased prom the JAR standard of 1/4 inch to about 1/2 inch (1.27 cm), and the space between outer bolster gobs 18 and 26 and side frame columns 12 and 14 it reduced from the AJAR standard of 5~8 inch to about 3/8 inch Tao cm). A preferred relation is to haze the distance between the inner bolster gob and the side r2me-co-lum~ equal to or Greta than the distance between the outer bolster gob and the side free column.
BOLSTER GOB SPACING ON ROLLER BEARING TRUCKS
Background of the Invention queue present invention relates generally to railway trucks, and moxie particularly to a railway truck hatting a bolster received in two side frames warily inner arid outer 3aolster gobs foci pockets Jo receive the side frame columns.
The presence of such bolster gobs is Noel prom patents such as U. S. Patent No. 3,109,387. however, aye patent is mainly concerned with side frame s ion lugs which limit the horizontal end rotative movement of the bolster within the side frames.
It has bee discovered that the side frames in such railway trucks tend to move inward Howard eta ho other during service. The reason or use tendency is unknown, but a greeter Mormon is suspected under loaded car conditions Accordirlgly, excessive ionic bolster gob wear has been experienced with minimal o'er gob wear OWE course such gob wear is due to ye side frames tendency to move inward toward each other, whereby the inter gobs axe contacted by the side Erase columns.
exasnple of such inner bolster gib-side fume clime wear was obtained Tom a heavy duty Association of American .- Railroads AWRY) standard railway truck after 480,000 miles of service . The immure bolster gob had worn 0 . 211 inch ( O . 536 cm) aTld the side Erase column contacting the inter bolster gob had worn 0.172 inch (0.437 cm). The outer bolster gob showed no wear and the side frame column con-ticketing such outer bolster gob also showed no wear.
I' I
The present Associa~iorl ox American Railroads (JAR) standard or heavy duty railway tucks is to provide for an initial, non-woxn inner bolster gob side frame column spacing of 1/4 inch I . 63 cm) and an outer bolster gib-slde 5 frump column spacing ox 5/8 inch if, 58 cm) . Such a spacing ;~. - arrangement has resulted in the excessive inner gob wear discussed above. Such inner bolster gob and contacting side frame column wear is noted to take place mostly in tile first one or two years of success o the railway truck. After 10 this initial wear in period little further wear is believed to occur.
Accordingly, it is a object of the present invention to provide a railway truck which exhibits lessened firmer bolster gob wear and improved service life for the boy stir 15 and side frames of the truck.
.
go The present venison provides a railway truck having a ballast supported irk two side frames. The bolster has two sets of inner and outer bolster gobs at e then end thereof, such gobs forming a pocJcek to receive the side frame columns.
20 The clearance between the inrler gob and the ire frame column is inquired prom the AJAR standard arid the clearance been the outer gob and the side tame coluIlLn is decreased from the Ajar standard. A preferred relation 1: between the inner and outer gib-side frame column clearances has been 25 wound to be where the inner gib-side- frame column clearance is equal Jo or slightly greater thasl the outer gib-side frame column clearance.
~l3~7;~
In particular, the present invention provides a railway truck comprising a bolster and two side frames, said bolster being supported within said side frames, said bolster including at each end whereof an inner bolster gob and an outer bolster gin, each such gob extending outward from the bolster to - form a pocket on the bolster to contact the side frame, the clearance between the inner bolstP~ gob and the side frame being increased from the AJAR standard of 1/4 inch to about 1/2 inch, and the clearance between the outer bolster gob and the side frame column being reduced from the AIR standard of 5/8 inch to about I inch.
he present invention reduces the excessive Remount of inner gob wear, while maintaining the total inner and out-gob clearance required by the AJAR such that a long service life is obtained before the maximum JAR standard of 1 1/2 inches (3.81 cm) of total clearance between the inner and outer gins and the side frame Callahan is reached and repair it required.
.
I the drawing, a top partial view ox the bolster-side frame of the present invention is shown.
- Detailed-De Croatia of the Present Invention I, In the drawing a partial top view of owe side ox bolster 10 is shown. Side frame columns 12 and 14 with respective worry plates 15 and 17 are also shown as nearly abutting bolster 10.
I
The end of bolster 10 is shown to have two sets of inner bolster gobs 16 and 24 and outer bolster gobs 18 and 26 which exit transversely outward prom the longitudinal axis of bolster 10. Side frame column 12 has a stop lug pa extending outward from the longitudinal axis of side frame column 12, and side frame column 14 has a stow lug 22 extending outward prom the longitudinal axis of side frame clime 14.
The space between inner bolster gobs 16 and 24 and side frame columns I and 14 is increased prom the JAR standard of 1/4 inch to about 1/2 inch (1.27 cm), and the space between outer bolster gobs 18 and 26 and side frame columns 12 and 14 it reduced from the AJAR standard of 5~8 inch to about 3/8 inch Tao cm). A preferred relation is to haze the distance between the inner bolster gob and the side r2me-co-lum~ equal to or Greta than the distance between the outer bolster gob and the side free column.
Claims (4)
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A railway truck comprising a bolster and two side frames, wherein the bolster has two ends and each side frame has an opening, each bolster end being adapted to be received in a side frame opening, each said bolster end including two sets of inner and outer bolster gibs extending transversely outward from the longitudinal axis of the bolster, each set of the inner and outer bolster gibs forming a pocket to receive a column of one of said side frames, the clearance between the inner bolster gib and the side frame column being greater than the distance between the outer bolster gib and the side frame column.
2. A railway truck comprising a bolster and two side frames, said bolster being supported within said side frames, said bolster including at each end thereof an inner bolster gib and an outer bolster gib, each such gib extending outward from the bolster to form a pocket on the bolster to contact the side frame, the clearance between the inner bolster gib and the side frame being about 1/2 inch (1.27 cm), and the clearance between the outer bolster gib and the side frame column being about 3/8 inch (0.95 cm).
3. The railway truck of claim 2, wherein each bolster end includes two sets of inner and outer bolster gibs, each gib extending outwardly from the longitudinal axis of the bolster.
4. The railway truck of claim 3, wherein the side frame includes two columns each of which contacts the bolster gib pocket.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36728282A | 1982-04-12 | 1982-04-12 | |
| US367,282 | 1989-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1213472A true CA1213472A (en) | 1986-11-04 |
Family
ID=23446558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000425621A Expired CA1213472A (en) | 1982-04-12 | 1983-04-11 | Bolster gib spacing on roller bearing truck |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS58180370A (en) |
| KR (1) | KR840004387A (en) |
| AR (1) | AR230401A1 (en) |
| AU (1) | AU557556B2 (en) |
| BE (1) | BE896426A (en) |
| BR (1) | BR8301807A (en) |
| CA (1) | CA1213472A (en) |
| ES (1) | ES279894Y (en) |
| GB (1) | GB2118504B (en) |
| MX (1) | MX162550A (en) |
| PT (1) | PT76512B (en) |
| ZA (1) | ZA832511B (en) |
| ZW (1) | ZW8283A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ200869A3 (en) * | 2008-02-06 | 2009-08-19 | Vúkv A. S. | Device for longitudinal guiding of rail vehilce parts that are spring-loaded relative to each another |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB822456A (en) * | 1958-03-17 | 1959-10-28 | American Steel Foundries | Improvements in or relating to a railway car truck |
| GB838273A (en) * | 1958-09-01 | 1960-06-22 | American Steel Foundries | Improvements in railway car trucks |
| US3339498A (en) * | 1964-06-17 | 1967-09-05 | Midland Ross Corp | Snubbed car truck bolster |
| US4244298A (en) * | 1979-04-11 | 1981-01-13 | Railroad Dynamics, Inc. | Freight car truck assembly |
| US4357880A (en) * | 1980-08-25 | 1982-11-09 | Midland-Ross Corporation | Bolster for a railroad car truck |
-
1983
- 1983-03-31 JP JP58054083A patent/JPS58180370A/en active Pending
- 1983-04-06 ZW ZW82/83A patent/ZW8283A1/en unknown
- 1983-04-06 PT PT76512A patent/PT76512B/en not_active IP Right Cessation
- 1983-04-07 AR AR292640A patent/AR230401A1/en active
- 1983-04-08 BR BR8301807A patent/BR8301807A/en not_active IP Right Cessation
- 1983-04-11 MX MX196886A patent/MX162550A/en unknown
- 1983-04-11 ES ES1983279894U patent/ES279894Y/en not_active Expired
- 1983-04-11 CA CA000425621A patent/CA1213472A/en not_active Expired
- 1983-04-11 BE BE0/210526A patent/BE896426A/en not_active IP Right Cessation
- 1983-04-11 ZA ZA832511A patent/ZA832511B/en unknown
- 1983-04-11 AU AU13406/83A patent/AU557556B2/en not_active Ceased
- 1983-04-12 GB GB08309812A patent/GB2118504B/en not_active Expired
- 1983-04-12 KR KR1019830001516A patent/KR840004387A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| ZW8283A1 (en) | 1983-10-12 |
| GB8309812D0 (en) | 1983-05-18 |
| AR230401A1 (en) | 1984-04-30 |
| BE896426A (en) | 1983-10-11 |
| ES279894U (en) | 1985-06-01 |
| GB2118504B (en) | 1986-01-22 |
| MX162550A (en) | 1991-05-20 |
| GB2118504A (en) | 1983-11-02 |
| KR840004387A (en) | 1984-10-15 |
| ES279894Y (en) | 1986-01-16 |
| PT76512A (en) | 1983-05-01 |
| PT76512B (en) | 1986-01-13 |
| AU557556B2 (en) | 1986-12-24 |
| JPS58180370A (en) | 1983-10-21 |
| ZA832511B (en) | 1983-12-28 |
| AU1340683A (en) | 1983-10-20 |
| BR8301807A (en) | 1983-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |