US20180257681A1 - Passive steering for a three piece railway truck - Google Patents

Passive steering for a three piece railway truck Download PDF

Info

Publication number
US20180257681A1
US20180257681A1 US15/454,475 US201715454475A US2018257681A1 US 20180257681 A1 US20180257681 A1 US 20180257681A1 US 201715454475 A US201715454475 A US 201715454475A US 2018257681 A1 US2018257681 A1 US 2018257681A1
Authority
US
United States
Prior art keywords
curve
adapter
allow
adapter pad
align
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.)
Abandoned
Application number
US15/454,475
Inventor
Paul Steven Wike
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amsted Rail Co Inc
Original Assignee
Amsted Rail Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US15/454,475 priority Critical patent/US20180257681A1/en
Assigned to AMSTED RAIL COMPANY, INC. reassignment AMSTED RAIL COMPANY, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WIKE, PAUL STEVEN
Application filed by Amsted Rail Co Inc filed Critical Amsted Rail Co Inc
Assigned to BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT reassignment BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS Assignors: AMSTED RAIL COMPANY, INC.
Priority to CA2995813A priority patent/CA2995813C/en
Priority to ZA2018/01242A priority patent/ZA201801242B/en
Priority to RU2018107605A priority patent/RU2675337C1/en
Priority to AU2018201620A priority patent/AU2018201620A1/en
Priority to MX2018002841A priority patent/MX2018002841A/en
Priority to BR102018004554A priority patent/BR102018004554A2/en
Priority to CN201810192403.9A priority patent/CN108569308A/en
Publication of US20180257681A1 publication Critical patent/US20180257681A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
    • B61F5/46—Adjustment controlled by a sliding axle under the same vehicle underframe
    • 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
    • B61F5/50—Other details
    • B61F5/52—Bogie frames
    • 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
    • B61F5/06—Bolster supports or mountings incorporating metal springs
    • 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
    • B61F15/00—Axle-boxes
    • B61F15/02—Axle-boxes with journal bearings
    • B61F15/06—Axle-boxes with journal bearings for cars
    • 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
    • B61F3/00—Types of bogies
    • B61F3/02—Types of bogies with more than one axle
    • 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
    • B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/305—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs
    • 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
    • B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
    • 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
    • B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
    • B61F5/44—Adjustment controlled by movements of vehicle body

Definitions

  • the traditional three piece railway freight truck consists of one bolster and two side frames.
  • the bolster which carries the car body extends centrally through the side frames.
  • the bolster is supported by a suspension consisting of springs that support the bolster and friction shoes with springs that create damping on vertical bolster movement.
  • the suspension is centrally located and supported by the side frame.
  • the side frames ends have pedestal jaws that support on and capture the bearing adapters.
  • the bearing adapters are supported on the wheelset axle bearings.
  • the wheel set consists of a live axle with wheels and bearings at the ends.
  • the truck steering mechanism consists of tapered cone wheel treads.
  • the rail turns out from under the center of the wheel treads.
  • the tapered cone changes each wheel's diameter and the circumference of the wheel on the outside of the curve becomes larger and the wheel to the inside of the curve circumference become smaller.
  • the distance the wheels roll down the rail becomes uneven which yaws the wheelset and attempts to radially align the wheel sets to the curve.
  • the traditional three piece railway freight truck may prevent the wheel sets from achieving radial alignment to curves due to the rigid side frames acting to restrain the wheelsets from aligning with a curve in the rails.
  • the side frames also may constrain the wheelset from radial aligning to curves by the limited gap of 0.144 inches on either side of wheelset axle bearing and the side frame pedestal jaws.
  • the present invention opens the side frame pedestal jaws to 0.331 inches on either side of wheelset axle bearing and the side frame pedestal jaws to allow the wheel sets to yaw and align radially to curves.
  • the side frame is supported on wheel sets by elastomeric pads and bearing adapters.
  • the present invention utilizes the stiffness of the elastomeric pad to allow the adapters to pitch and twist in the open jaws of the pedestal.
  • the adapter pitch motion is what allows the wheel set to move in an arc forward or backward in the open pedestal jaws of the side frame.
  • the elastomeric pad also allows the wheelset to twist the pads allowing the wheelset to radially align to the curve.
  • the pads elastic stiffness is sufficient to return when the wheelset is align to straight track.
  • FIG. 1 is a perspective view of a traditional three piece railway freight car truck assembly of a passive steering three piece railway car truck in accordance with a first embodiment of the present invention
  • FIG. 2 is a detailed exploded partial view of the relationship the pad and adapter to the side frame and wheel set of the passive steering three piece railway car truck in accordance with a first embodiment of the present invention
  • FIG. 3 is a top view of a railway car truck in a curve with the adapters also shown as pitched in separate side views, of the passive steering three piece railway car truck in accordance with a first embodiment of the present invention
  • FIGS. 4A-4D are detailed sectional views of a yawed railway car truck wheel set with the relationship between pitch and yaw of the adapter on the elastomeric adapter pad, of the passive steering three piece railway truck in accordance with a first embodiment of the present invention.
  • FIGS. 5A and 5B are detailed sectional views of a Pitched and twisted adapter compressing the elastomeric adapter pad, of the passive steering three piece railway truck in accordance with a first embodiment of the present invention.
  • FIG. 1 is a perspective view of a traditional three piece railway freight car truck assembly 1 is seen to be comprised of two laterally spaced side frames 3 between which bolster 4 laterally extends.
  • Bolster 4 is seen to extend through a central opening in each side frame 3 .
  • Suspension 5 usually comprised of a coil spring group, is seen to support the bolster 4 .
  • the side frames 7 are supported at the pedestals 14 by adapter pad 6 and adapter 7 setting on axle bearing 8 of the wheelsets 2 .
  • the wheelset 2 consists of two wheels 10 pressed onto a journal portion near ends of an axle 9 .
  • the wheelset 2 has axle bearings 8 mounted at both ends of axle 9 .
  • Adapter pads 6 are typically comprised of a structural elastomer such as Urethane.
  • FIG. 2 is a detailed exploded partial view of the relationship the elastomeric adapter pad 6 and adapter 7 to side frame 3 at the pedestal 14 .
  • the adapter 7 is seated on bearing 8 .
  • the end of wheel set 2 is shown with wheel 10 on axle 9 .
  • the wheel 10 has a tread 16 that is outwardly tapered in a cone shape.
  • Sideframe pedestal opening is formed by depending jaws 12 and pedestal roof 15 .
  • the inside surface of jaws 12 may include lugs 13 to help position and hold adapter 7 .
  • Elastomeric adapter pad 6 vertically captured between the adapter 7 top surface 26 and the pedestal roof 15 .
  • the Legs 27 of the elastomeric adapter pad 6 are laterally captured between the lugs 13 and the adapter 7 .
  • FIG. 3 is a top view, with a side views of each pedestal 14 and wheel, of a railway car truck 1 in a curve 11 with the adapters 7 pitched 22 and 23 .
  • the rail turns out from under the center of the wheel treads 16 .
  • the tapered cone essentially changes the wheel's diameter with regard to the center axle-rail distance such that the circumference 17 of the wheel on the outside of the curve becomes larger and the wheel to the inside of the curve circumference 18 becomes smaller.
  • the distance the wheels roll down the rail becomes uneven which yaws 19 the wheelset 2 and aligns the wheel sets 2 to the curve 11 .
  • the side frame 3 at the pedestals 14 have open jaws 12 to allow the wheel sets 2 yaw 19 .
  • the elastomeric adapter pads 6 become unevenly vertically loaded as the wheel set 2 yaws 19 on adapter 7 .
  • the uneven vertical loading compresses the elastomeric adapter pad 6 at one end more than the other. This acts to pitch the adapter in 22 for the inside of the curve 11 and pitch the adapter out 23 for the outside of the curve 11 .
  • FIGS. 4A-4D show detailed sections of a yawed wheel set 2 with the relationship between pitch 22 and 23 and twist 24 and 25 of the elastomeric adapter pad 6 on adapter 7 .
  • the wheel set 2 supports the adapter 7 and the elastomeric adapter pad 6 on the pedestal roof 15 of the side frame 3 .
  • the vertical load on the elastomeric adapter pad 6 is evenly distributed when the wheel set 2 is rolling on straight track.
  • the wheel set 2 is yawed in curves the vertical load on the elastomeric adapter pad 6 becomes uneven and the adapter pitches 22 and 23 .
  • the adapters also twist on the elastomeric adapter pad 6 .
  • the twisted 23 and 24 adapter 7 is constrained by lugs 13 in the top of the open jaws 12 .
  • Each adapter 7 and adapter pad 6 is received in one of the sideframe pedestal ends formed by jaws 12 .
  • Each adapter pad 6 has a resistance to pitch and twist such that a longitudinal steering force created between the wheels to rails of a wheelset of from 5,000 to 7,000 pounds is sufficient to radially align the wheelset with a curve of up to 10 degrees in a railway track.
  • jaws 12 are open enough to allow such deformation of the adapter pads 6 to allow the wheel set to yaw to align with the curve in the railway track.
  • the pedestal jaws 12 are opened 0.331 inches on either side of the bearing to allow space for the adapter 7 to pitch and twist against adapter pad 6 .
  • the open jaws 12 is sufficient for wheelset 2 to radial align to a 10 degrees in the railway track curve.
  • FIGS. 5A and 5B show detailed sectional views of a Pitched 23 and twisted 25 adapter 7 compressing the elastomeric adapter pad 6 .
  • the yawed wheelset bearing 8 creates longitudinal force about the bearing 8 .
  • the longitudinal force creates a moment about the top surface 26 of adapter 7 .
  • the longitudinal force and displacement of bearing 8 cause the adapter 7 to compress the elastomeric adapter pad 6 unevenly in the direction of the displacement.
  • the uneven vertical displacement of the elastomeric adapter pad 6 pitches the adapter 7 and bearing 8 .
  • Bearing 8 is also yawing as it is displaced.
  • the adapter 7 sitting on bearing 8 is forced to accommodate the yawing motion.

Abstract

The present invention opens the side frame pedestal jaws to allow the wheel sets to yaw and align radially to curves. The side frame is supported on wheel sets by elastomeric pads and bearing adapters. The present invention utilizes the elastomeric pad stiffness to compress in pitch motion that allow the wheel set to move in an arc forward or backward in the open jaws of the side frame. The elastomeric pad stiffness also allows the wheelset to twist the pads allowing the wheelset to radially align to the curve. The pads elastic stiffness is sufficient to return when the wheelset is align to straight track.

Description

    BACKGROUND OF THE INVENTION
  • The traditional three piece railway freight truck consists of one bolster and two side frames. The bolster which carries the car body extends centrally through the side frames. The bolster is supported by a suspension consisting of springs that support the bolster and friction shoes with springs that create damping on vertical bolster movement. The suspension is centrally located and supported by the side frame. The side frames ends have pedestal jaws that support on and capture the bearing adapters. The bearing adapters are supported on the wheelset axle bearings. The wheel set consists of a live axle with wheels and bearings at the ends.
  • The truck steering mechanism consists of tapered cone wheel treads. When the truck enters a curve, the rail turns out from under the center of the wheel treads. As the rail moves out from under the center of the wheel tread, the tapered cone changes each wheel's diameter and the circumference of the wheel on the outside of the curve becomes larger and the wheel to the inside of the curve circumference become smaller. The distance the wheels roll down the rail becomes uneven which yaws the wheelset and attempts to radially align the wheel sets to the curve.
  • The traditional three piece railway freight truck may prevent the wheel sets from achieving radial alignment to curves due to the rigid side frames acting to restrain the wheelsets from aligning with a curve in the rails. The side frames also may constrain the wheelset from radial aligning to curves by the limited gap of 0.144 inches on either side of wheelset axle bearing and the side frame pedestal jaws.
  • The present invention opens the side frame pedestal jaws to 0.331 inches on either side of wheelset axle bearing and the side frame pedestal jaws to allow the wheel sets to yaw and align radially to curves. The side frame is supported on wheel sets by elastomeric pads and bearing adapters. The present invention utilizes the stiffness of the elastomeric pad to allow the adapters to pitch and twist in the open jaws of the pedestal. The adapter pitch motion is what allows the wheel set to move in an arc forward or backward in the open pedestal jaws of the side frame. The elastomeric pad also allows the wheelset to twist the pads allowing the wheelset to radially align to the curve. The pads elastic stiffness is sufficient to return when the wheelset is align to straight track.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • In the drawings,
  • FIG. 1 is a perspective view of a traditional three piece railway freight car truck assembly of a passive steering three piece railway car truck in accordance with a first embodiment of the present invention;
  • FIG. 2 is a detailed exploded partial view of the relationship the pad and adapter to the side frame and wheel set of the passive steering three piece railway car truck in accordance with a first embodiment of the present invention;
  • FIG. 3 is a top view of a railway car truck in a curve with the adapters also shown as pitched in separate side views, of the passive steering three piece railway car truck in accordance with a first embodiment of the present invention;
  • FIGS. 4A-4D are detailed sectional views of a yawed railway car truck wheel set with the relationship between pitch and yaw of the adapter on the elastomeric adapter pad, of the passive steering three piece railway truck in accordance with a first embodiment of the present invention.
  • FIGS. 5A and 5B are detailed sectional views of a Pitched and twisted adapter compressing the elastomeric adapter pad, of the passive steering three piece railway truck in accordance with a first embodiment of the present invention.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • Referring now to FIG. 1, is a perspective view of a traditional three piece railway freight car truck assembly 1 is seen to be comprised of two laterally spaced side frames 3 between which bolster 4 laterally extends. Bolster 4 is seen to extend through a central opening in each side frame 3. Suspension 5, usually comprised of a coil spring group, is seen to support the bolster 4. The side frames 7 are supported at the pedestals 14 by adapter pad 6 and adapter 7 setting on axle bearing 8 of the wheelsets 2. The wheelset 2 consists of two wheels 10 pressed onto a journal portion near ends of an axle 9. The wheelset 2 has axle bearings 8 mounted at both ends of axle 9. Adapter pads 6 are typically comprised of a structural elastomer such as Urethane.
  • Referring now to FIG. 2, is a detailed exploded partial view of the relationship the elastomeric adapter pad 6 and adapter 7 to side frame 3 at the pedestal 14. The adapter 7 is seated on bearing 8. The end of wheel set 2 is shown with wheel 10 on axle 9. The wheel 10 has a tread 16 that is outwardly tapered in a cone shape. Sideframe pedestal opening is formed by depending jaws 12 and pedestal roof 15. The inside surface of jaws 12 may include lugs 13 to help position and hold adapter 7. Elastomeric adapter pad 6 vertically captured between the adapter 7 top surface 26 and the pedestal roof 15. The Legs 27 of the elastomeric adapter pad 6 are laterally captured between the lugs 13 and the adapter 7.
  • Referring now to FIG. 3, is a top view, with a side views of each pedestal 14 and wheel, of a railway car truck 1 in a curve 11 with the adapters 7 pitched 22 and 23. When the railway car truck 1 enters a curve 11, the rail turns out from under the center of the wheel treads 16. As the rail moves out from under the center of the wheel tread, 16 the tapered cone essentially changes the wheel's diameter with regard to the center axle-rail distance such that the circumference 17 of the wheel on the outside of the curve becomes larger and the wheel to the inside of the curve circumference 18 becomes smaller. The distance the wheels roll down the rail becomes uneven which yaws 19 the wheelset 2 and aligns the wheel sets 2 to the curve 11. The side frame 3 at the pedestals 14 have open jaws 12 to allow the wheel sets 2 yaw 19. The elastomeric adapter pads 6 become unevenly vertically loaded as the wheel set 2 yaws 19 on adapter 7. The uneven vertical loading compresses the elastomeric adapter pad 6 at one end more than the other. This acts to pitch the adapter in 22 for the inside of the curve 11 and pitch the adapter out 23 for the outside of the curve 11.
  • FIGS. 4A-4D show detailed sections of a yawed wheel set 2 with the relationship between pitch 22 and 23 and twist 24 and 25 of the elastomeric adapter pad 6 on adapter 7. The wheel set 2 supports the adapter 7 and the elastomeric adapter pad 6 on the pedestal roof 15 of the side frame 3. The vertical load on the elastomeric adapter pad 6 is evenly distributed when the wheel set 2 is rolling on straight track. When the wheel set 2 is yawed in curves the vertical load on the elastomeric adapter pad 6 becomes uneven and the adapter pitches 22 and 23. As the adapter pitch as shown at 22 and 23 the adapters also twist on the elastomeric adapter pad 6. The twisted 23 and 24 adapter 7 is constrained by lugs 13 in the top of the open jaws 12. Each adapter 7 and adapter pad 6 is received in one of the sideframe pedestal ends formed by jaws 12. Each adapter pad 6 has a resistance to pitch and twist such that a longitudinal steering force created between the wheels to rails of a wheelset of from 5,000 to 7,000 pounds is sufficient to radially align the wheelset with a curve of up to 10 degrees in a railway track. Further, jaws 12 are open enough to allow such deformation of the adapter pads 6 to allow the wheel set to yaw to align with the curve in the railway track. The pedestal jaws 12 are opened 0.331 inches on either side of the bearing to allow space for the adapter 7 to pitch and twist against adapter pad 6. The open jaws 12 is sufficient for wheelset 2 to radial align to a 10 degrees in the railway track curve.
  • FIGS. 5A and 5B show detailed sectional views of a Pitched 23 and twisted 25 adapter 7 compressing the elastomeric adapter pad 6. The yawed wheelset bearing 8 creates longitudinal force about the bearing 8. The longitudinal force creates a moment about the top surface 26 of adapter 7. The longitudinal force and displacement of bearing 8 cause the adapter 7 to compress the elastomeric adapter pad 6 unevenly in the direction of the displacement. The uneven vertical displacement of the elastomeric adapter pad 6 pitches the adapter 7 and bearing 8. Bearing 8 is also yawing as it is displaced. The adapter 7 sitting on bearing 8 is forced to accommodate the yawing motion. Adapter 7 twist 25 the elastomeric adapter pad 6 and compress the elastomeric adapter pad 6 legs 27 against lugs 13 to allow the yawing motion.

Claims (7)

What is claimed is:
1. A railway car truck comprising
a bolster and two parallel sideframes,
the bolster having two ends each received in an opening in one of the sideframes,
a spring group supporting the bolster end in each sideframe,
each sideframe having two pedestal ends,
two axles each having two ends,
two wheels each fitted to a journal portion of each axle,
a plurality of axle bearings each fitted on one of the axle ends,
a plurality of adapters each with an adapter pad, with each adapter and adapter pad received in one of the sideframe pedestal ends,
wherein each adapter pad has a resistance to pitch and twist such that a longitudinal steering force created between the wheels to rails of a wheelset of from 5,000 to 7,000 pounds is sufficient to radially align the wheelset with a curve in a railway track.
2. The railway cart truck of claim 1 wherein
the sideframe pedestal end is comprised of longitudinally spaced jaws that allow the adapter pad to deform to allow the wheel set to yaw to align with the curve in the railway track.
3. The railway car truck of claim 2 wherein
the adapter pad will deform enough to allow the wheel set to yaw to align with a curve of up to 10 degrees in the railway track curve.
4. A railway car truck comprising
a bolster and two parallel sideframes,
the bolster having two ends each received in an opening in one of the sideframes,
a spring group supporting the bolster end in each sideframe,
each sideframe having two pedestal ends,
two axles each having two ends and two journal portions,
a wheel fitted to a journal portion of each axle,
a plurality of axle bearings each fitted on one of the axle ends,
a plurality of adapters each with an elastomeric adapter pad, with each adapter and
elastomeric adapter pad received in one of the sideframe pedestal ends,
wherein each adapter pad has a resistance to pitch and twist such that a longitudinal steering force created between the wheels to rails of a wheelset of from 5,000 to 7,000 pounds is sufficient to radially align the wheelset with a curve in a railway track.
5. The railway cart truck of claim 4 wherein
the sideframe pedestal end is comprised of longitudinally spaced jaws that allow the adapter pad to deform to allow the wheel set to yaw to align with the curve in the railway track.
6. The railway car truck of claim 5 wherein
the adapter pad will deform enough to allow the wheel set to yaw to align with a curve of up to 10 degrees in the railway track.
7. The railway cart truck of claim 4 wherein
the sideframe pedestal jaws that are opened 0.331 inches on either side of the bearing to allow the adapter pad to deform to allow the wheel set to yaw to align with the curve in the railway track.
US15/454,475 2017-03-09 2017-03-09 Passive steering for a three piece railway truck Abandoned US20180257681A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US15/454,475 US20180257681A1 (en) 2017-03-09 2017-03-09 Passive steering for a three piece railway truck
CA2995813A CA2995813C (en) 2017-03-09 2018-02-21 Passive steering for a three piece railway truck
ZA2018/01242A ZA201801242B (en) 2017-03-09 2018-02-23 Passive steering for a three piece railway truck
RU2018107605A RU2675337C1 (en) 2017-03-09 2018-03-01 Passive control for three-piece truck of railcar
MX2018002841A MX2018002841A (en) 2017-03-09 2018-03-06 Passive steering for a three piece railway truck.
AU2018201620A AU2018201620A1 (en) 2017-03-09 2018-03-06 Passive steering for a three piece railway truck
BR102018004554A BR102018004554A2 (en) 2017-03-09 2018-03-07 passive steering for a three-piece rail car
CN201810192403.9A CN108569308A (en) 2017-03-09 2018-03-09 Passive steering for piece rail road bogie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15/454,475 US20180257681A1 (en) 2017-03-09 2017-03-09 Passive steering for a three piece railway truck

Publications (1)

Publication Number Publication Date
US20180257681A1 true US20180257681A1 (en) 2018-09-13

Family

ID=63446109

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/454,475 Abandoned US20180257681A1 (en) 2017-03-09 2017-03-09 Passive steering for a three piece railway truck

Country Status (8)

Country Link
US (1) US20180257681A1 (en)
CN (1) CN108569308A (en)
AU (1) AU2018201620A1 (en)
BR (1) BR102018004554A2 (en)
CA (1) CA2995813C (en)
MX (1) MX2018002841A (en)
RU (1) RU2675337C1 (en)
ZA (1) ZA201801242B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3789262A1 (en) * 2019-09-09 2021-03-10 VÚKV a.s. Wheelset guiding for railway vehicle in particular for a freight car

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU191743U1 (en) * 2019-05-29 2019-08-19 Акционерное общество "Алтайского вагоностроения (АО "Алтайвагон") LATERAL FRAME OF A THREE-ELEMENT CAR

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552074A (en) * 1983-11-21 1985-11-12 Amsted Industries Incorporated Primary suspension for railroad car truck
US4674412A (en) * 1985-12-19 1987-06-23 Amsted Industries Incorporated Elastomeric bearing pad with unlike threaded fasteners
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
US5450799A (en) * 1994-01-11 1995-09-19 Amsted Industries Incorporated Truck pedestal design
US5562044A (en) * 1995-05-30 1996-10-08 Hansen Inc. Steering railway truck
US5611284A (en) * 1996-01-19 1997-03-18 Atchison Casting Corporation Rail truck suspension and journal housing retention assembly
US7231878B2 (en) * 2001-08-02 2007-06-19 Active Steering, Llc Linear steering truck
US20140060380A1 (en) * 2012-08-31 2014-03-06 Strato, Inc. Wheelset to side frame interconnection for a railway car truck
US20150183446A1 (en) * 2013-12-30 2015-07-02 Nevis Industries Llc Railcar truck roller bearing adapter pad systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5000097A (en) * 1974-01-31 1991-03-19 Railway Engineering Associates, Inc. Self-steering railway truck
RU2228277C1 (en) * 2002-12-25 2004-05-10 Федеральное государственное унитарное предприятие Всероссийский научно-исследовательский и конструкторско-технологический институт подвижного состава Device for radial setting of wheelsets and their parallel turning in three-element two-axle bogies of rail car
US8276522B2 (en) * 2007-02-22 2012-10-02 Central Queensland University Steering railway bogie
SK5196Y1 (en) * 2008-08-21 2009-06-05 Tatravagonka As Two-axle bogies for rail vehicle with radial settings coupled wheels by cross member
RU2570930C2 (en) * 2013-06-13 2015-12-20 ОБЩЕСТВО С ОГРАНИЧЕННОЙ ОТВЕТСТВЕННОСТЬЮ "Головное специализированное конструкторское бюро вагоностроения имени Валерия Михайловича Бубнова" Side frame support assy at freight car bogie mounted axle
CN203543986U (en) * 2013-10-14 2014-04-16 南车长江车辆有限公司 Bogie of railway wagon

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552074A (en) * 1983-11-21 1985-11-12 Amsted Industries Incorporated Primary suspension for railroad car truck
US4674412A (en) * 1985-12-19 1987-06-23 Amsted Industries Incorporated Elastomeric bearing pad with unlike threaded fasteners
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
US5450799A (en) * 1994-01-11 1995-09-19 Amsted Industries Incorporated Truck pedestal design
US5562044A (en) * 1995-05-30 1996-10-08 Hansen Inc. Steering railway truck
US5611284A (en) * 1996-01-19 1997-03-18 Atchison Casting Corporation Rail truck suspension and journal housing retention assembly
US7231878B2 (en) * 2001-08-02 2007-06-19 Active Steering, Llc Linear steering truck
US20140060380A1 (en) * 2012-08-31 2014-03-06 Strato, Inc. Wheelset to side frame interconnection for a railway car truck
US20150183446A1 (en) * 2013-12-30 2015-07-02 Nevis Industries Llc Railcar truck roller bearing adapter pad systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3789262A1 (en) * 2019-09-09 2021-03-10 VÚKV a.s. Wheelset guiding for railway vehicle in particular for a freight car

Also Published As

Publication number Publication date
AU2018201620A1 (en) 2018-09-27
CN108569308A (en) 2018-09-25
ZA201801242B (en) 2018-12-19
CA2995813C (en) 2020-01-07
MX2018002841A (en) 2019-07-22
RU2675337C1 (en) 2018-12-19
CA2995813A1 (en) 2018-09-09
BR102018004554A2 (en) 2019-01-02

Similar Documents

Publication Publication Date Title
US7527003B1 (en) Railroad freight car sidebearing
AU2007202418B2 (en) Constant contact side bearing
CA2659139C (en) Railway freight car truck
US8991318B2 (en) Stabilized railway freight car truck
US10421021B2 (en) Roller coaster vehicle guidance system including a side guide assembly with wheel suspension
AU2004202601A1 (en) Three-piece Motion Control Truck System
CA2995813C (en) Passive steering for a three piece railway truck
WO2022001463A1 (en) Articulated bogie with embedded vibration and noise reduction apparatus
CN108569307A (en) The friction shoe groups of springs of bogies for railway vehicles
CN106364513B (en) Railway wagon bogie with cross beam
CN107244332B (en) Railway wagon bogie
CA2945287C (en) Side bearing for railway car truck
RU93764U1 (en) Three-element truck of wagons
RU2305643C1 (en) Car body-to-bogie side support
CN107323477A (en) A kind of railway goods train bogie assemble method
JP6718362B2 (en) Railcar bogie
US20120051678A1 (en) Railroad freight car sidebearing
CN201712621U (en) Empty and heavy two-stage friction type lower side bearing
CN103213596A (en) Elastic suspended damping device for truck journal box of rail wagon
RU2514982C2 (en) Freight car bogie and freight car
CN107253483A (en) Railway goods train bogie
US250885A (en) Car-truck
RU2542846C2 (en) Freight car
US1916142A (en) Truck
US945672A (en) Car-truck.

Legal Events

Date Code Title Description
AS Assignment

Owner name: AMSTED RAIL COMPANY, INC., ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WIKE, PAUL STEVEN;REEL/FRAME:041530/0559

Effective date: 20170217

AS Assignment

Owner name: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT, ILLINOIS

Free format text: NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS;ASSIGNOR:AMSTED RAIL COMPANY, INC.;REEL/FRAME:042732/0579

Effective date: 20170531

Owner name: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT, IL

Free format text: NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS;ASSIGNOR:AMSTED RAIL COMPANY, INC.;REEL/FRAME:042732/0579

Effective date: 20170531

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION