GB2180807A - Railway car axle assembly with stationary axle - Google Patents

Railway car axle assembly with stationary axle Download PDF

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Publication number
GB2180807A
GB2180807A GB08513255A GB8513255A GB2180807A GB 2180807 A GB2180807 A GB 2180807A GB 08513255 A GB08513255 A GB 08513255A GB 8513255 A GB8513255 A GB 8513255A GB 2180807 A GB2180807 A GB 2180807A
Authority
GB
United Kingdom
Prior art keywords
axle
bearings
assembly
wheels
chassis
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.)
Withdrawn
Application number
GB08513255A
Other versions
GB8513255D0 (en
Inventor
Milan Dane Trbojevic
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to GB08513255A priority Critical patent/GB2180807A/en
Publication of GB8513255D0 publication Critical patent/GB8513255D0/en
Publication of GB2180807A publication Critical patent/GB2180807A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B17/00—Wheels characterised by rail-engaging elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B37/00—Wheel-axle combinations, e.g. wheel sets
    • B60B37/10—Wheel-axle combinations, e.g. wheel sets the wheels being individually rotatable around the 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
    • B61F15/00—Axle-boxes
    • B61F15/12—Axle-boxes with roller, needle, or ball bearings
    • 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
    • B61F3/16—Types of bogies with a separate axle for each wheel
    • 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
    • B61F5/14—Side bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The stationary axle 1 carries rotatably mounted wheels 5 and bearings 2 disposed between the axle and wheels. The axle has rail car chassis supports 6 at the ends of the axle. The stationary axle is exposed to a constant loading resulting in increased axle reliability. <IMAGE>

Description

SPECIFICATION Railway car axle assembly with stationary axle THIS INOVATION RELATES TO THE RAIL WAY CAR AXLES The railway car axles in use are made as monoblock having wheels fixed on the axle by means of a shrink fit. Thus the axle rotates together with wheels and in the axle reversed stresses are present. Due to the stress concentration, shrink fit, corrosion (fretting corrosion as well), temperature changes and other causes axles are prone to fatigue failure, that was observed more than 100 years ago.
Proposed stationary axle is exposed to bending in one plane only. Because of that axle carries practically constant load, superimposed by oscillating load of rather low intensity, depending on railway track quality. In such a case some fibres of the axle are subjected to tension only, and the others to compression only which is more convenient than in the case of rotating axle where reversed stresses occur in all fibres. Therefore the proposed axle is far more reliable than the axle in use.
According to the present inovation each wheel has two bearings in its hub, inner rings of which are mounted on the axle. The bearings are separated by means of relevant rings which give necessary stability to the wheels.
The prescribed position of the wheels on the axes is obtained by means of collars on the axle, while fine adjustment is achieved by means of flanges on each side of the wheel hubs.
The outer shape of the chassis supports, fixed on both ends of the axle, corresponds to the bearing housings in use at present.
Figure 1 shows the axle assembly, while Figure 2 drawn to a larger scale shows the bearing housing in the wheel hub.
Numbers in the Figures denote: 1-the axle, 2-the bearings, 3-the inner flanges, 4-the outer flanges, 5-the wheel and 6-the chassis supports.
Steps in assembling 1st step: First inner flanges with slightly heated bearings and distant rings, as necessary for easy mounting, are mounted on the axle, then chassis supports, which are fastened to the axle by means of their screws.
2nd step: When the assembly cools the chassis supports are stripped in order that the wheels could be mounted. Remaining assembly is cooled to such an extent so that the wheels are easily mounted and their position adjusted to the standard gauge by means of the inner and outer flanges and their screws, then chassis supports are put back and fastened to the axle.
3th: The housings of the bearings in the wheel hubs are supplied by the bearing grease through the holes in the flanges.
1. Railway car axle assembly with stationary axle comprising an axle on which railway wheels freely rotate, thanks to the roller bearings mounted in their hubs, having on both ends of the axle relevant supports by means of which the car chassis is carried.
2. Railway car axle assembly, as claimed in Claim 1, wherein the inner rings of the bearings are fixed on the axle by means of a slightly tight fit and axial pressure on the rings obtained by screws which fix supports of the chassis to the axle.
3. Railway car axle assembly, as claimed in Claim 2, wherein the railway wheels have roller bearings in their hubs.
4. Railway car axle assembly, as claimed in Claim 3, wherein chassis is carried by means of two chassis supports, each on one side of the axle, outer shape of which, regarding assembly with the car chassis, correspond to the outer shape of the bearing housings in use at present.
5. Railway car axle assembly, as claimed in Claim 4, wherein the bearings are lubricated by means of bearing grease, pressed into the bearing 'housings' in the wheel hubs through the holes in the bearing flanges.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Railway car axle assembly with stationary axle THIS INOVATION RELATES TO THE RAIL WAY CAR AXLES The railway car axles in use are made as monoblock having wheels fixed on the axle by means of a shrink fit. Thus the axle rotates together with wheels and in the axle reversed stresses are present. Due to the stress concentration, shrink fit, corrosion (fretting corrosion as well), temperature changes and other causes axles are prone to fatigue failure, that was observed more than 100 years ago. Proposed stationary axle is exposed to bending in one plane only. Because of that axle carries practically constant load, superimposed by oscillating load of rather low intensity, depending on railway track quality. In such a case some fibres of the axle are subjected to tension only, and the others to compression only which is more convenient than in the case of rotating axle where reversed stresses occur in all fibres. Therefore the proposed axle is far more reliable than the axle in use. According to the present inovation each wheel has two bearings in its hub, inner rings of which are mounted on the axle. The bearings are separated by means of relevant rings which give necessary stability to the wheels. The prescribed position of the wheels on the axes is obtained by means of collars on the axle, while fine adjustment is achieved by means of flanges on each side of the wheel hubs. The outer shape of the chassis supports, fixed on both ends of the axle, corresponds to the bearing housings in use at present. Figure 1 shows the axle assembly, while Figure 2 drawn to a larger scale shows the bearing housing in the wheel hub. Numbers in the Figures denote: 1-the axle, 2-the bearings, 3-the inner flanges, 4-the outer flanges, 5-the wheel and 6-the chassis supports. Steps in assembling 1st step: First inner flanges with slightly heated bearings and distant rings, as necessary for easy mounting, are mounted on the axle, then chassis supports, which are fastened to the axle by means of their screws. 2nd step: When the assembly cools the chassis supports are stripped in order that the wheels could be mounted. Remaining assembly is cooled to such an extent so that the wheels are easily mounted and their position adjusted to the standard gauge by means of the inner and outer flanges and their screws, then chassis supports are put back and fastened to the axle. 3th: The housings of the bearings in the wheel hubs are supplied by the bearing grease through the holes in the flanges. CLAIMS
1. Railway car axle assembly with stationary axle comprising an axle on which railway wheels freely rotate, thanks to the roller bearings mounted in their hubs, having on both ends of the axle relevant supports by means of which the car chassis is carried.
2. Railway car axle assembly, as claimed in Claim 1, wherein the inner rings of the bearings are fixed on the axle by means of a slightly tight fit and axial pressure on the rings obtained by screws which fix supports of the chassis to the axle.
3. Railway car axle assembly, as claimed in Claim 2, wherein the railway wheels have roller bearings in their hubs.
4. Railway car axle assembly, as claimed in Claim 3, wherein chassis is carried by means of two chassis supports, each on one side of the axle, outer shape of which, regarding assembly with the car chassis, correspond to the outer shape of the bearing housings in use at present.
5. Railway car axle assembly, as claimed in Claim 4, wherein the bearings are lubricated by means of bearing grease, pressed into the bearing 'housings' in the wheel hubs through the holes in the bearing flanges.
GB08513255A 1985-05-24 1985-05-24 Railway car axle assembly with stationary axle Withdrawn GB2180807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08513255A GB2180807A (en) 1985-05-24 1985-05-24 Railway car axle assembly with stationary axle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08513255A GB2180807A (en) 1985-05-24 1985-05-24 Railway car axle assembly with stationary axle

Publications (2)

Publication Number Publication Date
GB8513255D0 GB8513255D0 (en) 1985-06-26
GB2180807A true GB2180807A (en) 1987-04-08

Family

ID=10579676

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08513255A Withdrawn GB2180807A (en) 1985-05-24 1985-05-24 Railway car axle assembly with stationary axle

Country Status (1)

Country Link
GB (1) GB2180807A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2280160A (en) * 1993-07-14 1995-01-25 Tram Research Limited Railway vehicle
EP0798136A1 (en) * 1996-03-29 1997-10-01 Valdunes Bending resistant railway vehicle wheel of steel
US6007126A (en) * 1998-01-08 1999-12-28 T. W. Blasingame Company, Inc. Stationary, slow speed and uni-directional lockout for differential action railroad car wheelsets
US7316436B1 (en) 2006-02-22 2008-01-08 John Kummings Differential wheel mounting for railroad car
EP3055181B1 (en) * 2013-10-07 2021-08-04 Rosenqvist Rail AB A device for a wheel axle and a track bounded vehicle with such a wheel axle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB288556A (en) * 1927-04-11 1929-06-20 American Steel Foundries Improvements in and relating to railway vehicle wheels and axle construction
GB1273730A (en) * 1969-10-27 1972-05-10 Koninklijke Hoogovens En Staal An axle or shaft and a wheel rotatably mounted thereon
US3802352A (en) * 1972-07-13 1974-04-09 Timken Co Railway truck wheel and axle set
US3875870A (en) * 1973-07-19 1975-04-08 Rail Or Trail Corp Convertible rail-highway vehicle axle assembly
GB1527445A (en) * 1976-04-02 1978-10-04 Messerschmitt Boelkow Blohm Wheel set for a railway vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB288556A (en) * 1927-04-11 1929-06-20 American Steel Foundries Improvements in and relating to railway vehicle wheels and axle construction
GB1273730A (en) * 1969-10-27 1972-05-10 Koninklijke Hoogovens En Staal An axle or shaft and a wheel rotatably mounted thereon
US3802352A (en) * 1972-07-13 1974-04-09 Timken Co Railway truck wheel and axle set
US3875870A (en) * 1973-07-19 1975-04-08 Rail Or Trail Corp Convertible rail-highway vehicle axle assembly
GB1527445A (en) * 1976-04-02 1978-10-04 Messerschmitt Boelkow Blohm Wheel set for a railway vehicle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2280160A (en) * 1993-07-14 1995-01-25 Tram Research Limited Railway vehicle
GB2280160B (en) * 1993-07-14 1998-04-29 Tram Research Limited Railway rolling stock
EP0798136A1 (en) * 1996-03-29 1997-10-01 Valdunes Bending resistant railway vehicle wheel of steel
FR2746707A1 (en) * 1996-03-29 1997-10-03 Valdunes RAILWAY WHEEL
US5957519A (en) * 1996-03-29 1999-09-28 Valdunes Out of gauge resistant railroad wheel
US6007126A (en) * 1998-01-08 1999-12-28 T. W. Blasingame Company, Inc. Stationary, slow speed and uni-directional lockout for differential action railroad car wheelsets
US6048015A (en) * 1998-01-08 2000-04-11 T.W. Blasingame Company, Inc. Differential action railroad car wheelset
US7316436B1 (en) 2006-02-22 2008-01-08 John Kummings Differential wheel mounting for railroad car
EP3055181B1 (en) * 2013-10-07 2021-08-04 Rosenqvist Rail AB A device for a wheel axle and a track bounded vehicle with such a wheel axle

Also Published As

Publication number Publication date
GB8513255D0 (en) 1985-06-26

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)