CA1270151A - Anti-wear guiding device for primary suspensions of railway bogies - Google Patents
Anti-wear guiding device for primary suspensions of railway bogiesInfo
- Publication number
- CA1270151A CA1270151A CA000493412A CA493412A CA1270151A CA 1270151 A CA1270151 A CA 1270151A CA 000493412 A CA000493412 A CA 000493412A CA 493412 A CA493412 A CA 493412A CA 1270151 A CA1270151 A CA 1270151A
- Authority
- CA
- Canada
- Prior art keywords
- bogie
- sleeve member
- wheel
- housing element
- frame
- 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 - Lifetime
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
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/32—Guides, e.g. plates, for axle-boxes
Abstract
"ANTI-WEAR GUIDING DEVICE FOR PRIMARY SUSPENSIONS of RAILWAY BOGIES "
Abstract of the Disclosure The device comprises at least a guiding body; posi-tioned in a removable way, and with a longitudinal and transversal clearance between a part, solid with the frame of the bogie of a railway vehicle, and the support ing sleeve of a wheel, linked to the frame through a primary suspension. By varying the thickness of the guid ing body and hence the longitudinal and/or transversal clearance, the response is varied in frequency and in amplitude of the primary suspensions in the horizontal plane and hence, on the basis of tests, the most suit-able guiding body can be provided for obtaining the maximum comfort during the running of the railway vehicle.
Abstract of the Disclosure The device comprises at least a guiding body; posi-tioned in a removable way, and with a longitudinal and transversal clearance between a part, solid with the frame of the bogie of a railway vehicle, and the support ing sleeve of a wheel, linked to the frame through a primary suspension. By varying the thickness of the guid ing body and hence the longitudinal and/or transversal clearance, the response is varied in frequency and in amplitude of the primary suspensions in the horizontal plane and hence, on the basis of tests, the most suit-able guiding body can be provided for obtaining the maximum comfort during the running of the railway vehicle.
Description
~7~
The present lnvention relates to an anti-wear yuiding device for primary suspensions of railway bogies.
It is known that one o~ the most important problems in railway vehicles, is that of improving the running comfort to an extent as high as possible.
The method normally used to the purpose of achieving such a result is O:e carrying out a good maintenance of the track and of providing bogies with primary and secondary suspensions with suitable features.
Notwithstanding the adoption of these measures of main-tenance and design character, the running quality level, espe-cially on the tracks of lower class, is not always saklsfactoryand, abovs all, it can be irnproved only seldom, although -the sus-pensions are provided with intrinsic andJor additional systems and/or devices which are very complex. These devices or systems are, however, expensive, and not always reliable.
The present invention provldes an anti-wear guiding device for primary suspPnsion of railway bogies, which is of simple structure and which can be easily applied, and is directly installable between the track, which is the origin po1nt of any perturbations, and the primary SuSpensiOQ of the bogie, so as to improve the funning quality of the railway vehicleO
In accordance with the present lnvention there ls pro-vided a railway bogie in which each wheel has an axle mounted in a bearing in a sleeve m0mber which is directly coupled to the bogie frame through primary suspension units which allow vibra-tion of the sleeve member relative to the frame in a horizontal plane, each primary suspension unlt comprising a resilient member sandwiched between a f~rst housing element fixed to the bogie frame and a second housing element fixed to the sleeve member, wherein between the sleeve member and at least one ad~arent first .~ ~
. : , r;~L
housing element a gulde body is replaceably mounted, the guide body being shaped and positioned to provide ]onyitudinal and transverse clearances between the first housing element and khe sleeve member which allows movement in a vertical direction but limits movement in the lonyitudina:L and transverse directions in the horizontal plane.
A device according to the invention increases, in the horizontal plane, the value of the attenuation coef~icient and hence the value of the running ~ua]Lity in a very efflcaciou~ way, in that it acts directly a-t the level of the source of the vibra-tions, in addition to acting on the accelerations in the horizon-tal plane which are more tiriny for the passengers.
Together with this, a device according ko the invention allows an optimum runnlng quality to be achieved by means of suitable successive and easy optimizing modifications. These can be advantageously made on prototype bogies, it being not neces-sary to stop the standard mass production, measuring the acceler-ations in the horizontal plane during test trips on the track, and hence modifying the device in function of the real character-istics of the track.
The invention will be described herainunder in more detail, on the basis of a preferred practical embodiment~ which is shown in the drawing attach~d, which represents for exemplify-ing purposes the portion of a railway bogie comprising the pri-mary suspension, in correspondence o~ which the device is in-stalled, which is the object of the invention. In particular:-Fig. 1 is an elevational view of said part, and Fig. 2 shows a section along the line II-II of Fig. lo The illustrated portion of the bogie is essential-~ ~2'7~3~5~
ly ~ormed by the spring 2, by the sleeve 3, by the bear ings 4, by the wheel 5, by the side member of the ~rame 6.
~he spring 2, shown in the drawing, i8 of known type, of rubber. It performs all required functions: the fun-ction o~ elastically suspending the vertical load, and that of elastically transTnitting a~1 the forces actine on the horizontal plane, bet~een the sleeve 3 and -the ~rame of the bogie 6.
~0 The spring 2 of rubber may be o~ the cone fruetum shaped type, housed and rotatin~ within the metal hous ings 7 and 8, or of the cone frustum shaped ring type, cured onto the said metal parts.
The sprin~ 2 may also be o~ another known type, not shown in the drawing, in which the function of suspend ing elastically the vertical load and -the function of transmitting elastically the forces in the horizontal plane are separatedO In this case7 the ver-tical load i5 elastically suspended by means of a rubber spring of the sin~le disc, or o~ the multiple disc type, or by means of a steel helical spring, whilst the ~orce~
acting in the horizontal plane are transmitted by a rubber ring freely rota-ting within a cylindrical sur-~ace metal seat3 In all these typical applications, it can be seen that the freedom degree o~ the primary suspenslon in the horizontal plane is controlled by the el~stic char acteristic in that plane of the rubber ring.
This characteristic~, after that the design has been flnished, cannot be suitably varied any longer~
nor can it be adapted and optimized in the known bogies, ~ 3~
as a function o~ the type of the track and o~ the type of the vehiole.
In order to obviate thi~ drawback, the device i~
provided according to the invention, which i~ indicated in the drawin~ with 1.
Said device is formed by a guiding body 1, made of an an-ti-wear material with suitable re~ilience, and po aitioned in a de-tachable way between the ~leeve 3 end the metal element 8 (containing the spring 2), solid with the side member 6 of the frame of the boKie. The guiding body 1 has vertical anti-wear surfaces on lon-gitudinal and tran~versal planes in the contact area between the sleeve 3 and the element 8. It acts thus as a transversal end longitudinal guiding element between the sleeve 3 (and hence the wheel 5) and the part 8 (and hence the side member 6 of the frame of the bogie)D
hdvantageously, -two bod-ies 1 are provided, posi-tioned symmetrically on opposite sides of the axle of the wheel 5.
By suitably varying the thickness of -the body or of the bodies 1, the value can be varied of the clear ance between the sleeve 3 and the side member 6 of the bogie1 in a longitu~inal direction as well as in a trans versal direction~ equally or differently, end on the basis of the acceleration measurements above mentioned.
~he variation of the clearance produces a variation of the respon~e, as for frequency as well as for am-plitude, of the primary suspension in the horizontal plane. I-t is there~ore possible to deterrnine, during the tests on the field~ the optimum value o~ the same clearance, for which, in the cornplex multi-mass dynam ~ 7~15~
ic phenomenon being con~idered, in function of the ir-regularities of the track and of the running ~peeds of the vehicle, the minimum value are produced of the ac-celerations~ and i~ consequently possible to install the device 1 of the most suitable measure for obtaining an optimum behaviour and running comfort o~ the vehicle along the whole path.
The body 1, which advantageously has its cross sec tion o~ U shape, can be fixed on the sleeve ~, as it i~
shown in the drawing, or to the element 8 solid with the frame of the bogie.
As it can be under~tood from what described, the de vice according -to the invention can be easily in~talled in any type of primary ~uspension, of existing type, 15 or of new type, with springs made of steel and~ or of rubber.
- . ,. .
- . ,
The present lnvention relates to an anti-wear yuiding device for primary suspensions of railway bogies.
It is known that one o~ the most important problems in railway vehicles, is that of improving the running comfort to an extent as high as possible.
The method normally used to the purpose of achieving such a result is O:e carrying out a good maintenance of the track and of providing bogies with primary and secondary suspensions with suitable features.
Notwithstanding the adoption of these measures of main-tenance and design character, the running quality level, espe-cially on the tracks of lower class, is not always saklsfactoryand, abovs all, it can be irnproved only seldom, although -the sus-pensions are provided with intrinsic andJor additional systems and/or devices which are very complex. These devices or systems are, however, expensive, and not always reliable.
The present invention provldes an anti-wear guiding device for primary suspPnsion of railway bogies, which is of simple structure and which can be easily applied, and is directly installable between the track, which is the origin po1nt of any perturbations, and the primary SuSpensiOQ of the bogie, so as to improve the funning quality of the railway vehicleO
In accordance with the present lnvention there ls pro-vided a railway bogie in which each wheel has an axle mounted in a bearing in a sleeve m0mber which is directly coupled to the bogie frame through primary suspension units which allow vibra-tion of the sleeve member relative to the frame in a horizontal plane, each primary suspension unlt comprising a resilient member sandwiched between a f~rst housing element fixed to the bogie frame and a second housing element fixed to the sleeve member, wherein between the sleeve member and at least one ad~arent first .~ ~
. : , r;~L
housing element a gulde body is replaceably mounted, the guide body being shaped and positioned to provide ]onyitudinal and transverse clearances between the first housing element and khe sleeve member which allows movement in a vertical direction but limits movement in the lonyitudina:L and transverse directions in the horizontal plane.
A device according to the invention increases, in the horizontal plane, the value of the attenuation coef~icient and hence the value of the running ~ua]Lity in a very efflcaciou~ way, in that it acts directly a-t the level of the source of the vibra-tions, in addition to acting on the accelerations in the horizon-tal plane which are more tiriny for the passengers.
Together with this, a device according ko the invention allows an optimum runnlng quality to be achieved by means of suitable successive and easy optimizing modifications. These can be advantageously made on prototype bogies, it being not neces-sary to stop the standard mass production, measuring the acceler-ations in the horizontal plane during test trips on the track, and hence modifying the device in function of the real character-istics of the track.
The invention will be described herainunder in more detail, on the basis of a preferred practical embodiment~ which is shown in the drawing attach~d, which represents for exemplify-ing purposes the portion of a railway bogie comprising the pri-mary suspension, in correspondence o~ which the device is in-stalled, which is the object of the invention. In particular:-Fig. 1 is an elevational view of said part, and Fig. 2 shows a section along the line II-II of Fig. lo The illustrated portion of the bogie is essential-~ ~2'7~3~5~
ly ~ormed by the spring 2, by the sleeve 3, by the bear ings 4, by the wheel 5, by the side member of the ~rame 6.
~he spring 2, shown in the drawing, i8 of known type, of rubber. It performs all required functions: the fun-ction o~ elastically suspending the vertical load, and that of elastically transTnitting a~1 the forces actine on the horizontal plane, bet~een the sleeve 3 and -the ~rame of the bogie 6.
~0 The spring 2 of rubber may be o~ the cone fruetum shaped type, housed and rotatin~ within the metal hous ings 7 and 8, or of the cone frustum shaped ring type, cured onto the said metal parts.
The sprin~ 2 may also be o~ another known type, not shown in the drawing, in which the function of suspend ing elastically the vertical load and -the function of transmitting elastically the forces in the horizontal plane are separatedO In this case7 the ver-tical load i5 elastically suspended by means of a rubber spring of the sin~le disc, or o~ the multiple disc type, or by means of a steel helical spring, whilst the ~orce~
acting in the horizontal plane are transmitted by a rubber ring freely rota-ting within a cylindrical sur-~ace metal seat3 In all these typical applications, it can be seen that the freedom degree o~ the primary suspenslon in the horizontal plane is controlled by the el~stic char acteristic in that plane of the rubber ring.
This characteristic~, after that the design has been flnished, cannot be suitably varied any longer~
nor can it be adapted and optimized in the known bogies, ~ 3~
as a function o~ the type of the track and o~ the type of the vehiole.
In order to obviate thi~ drawback, the device i~
provided according to the invention, which i~ indicated in the drawin~ with 1.
Said device is formed by a guiding body 1, made of an an-ti-wear material with suitable re~ilience, and po aitioned in a de-tachable way between the ~leeve 3 end the metal element 8 (containing the spring 2), solid with the side member 6 of the frame of the boKie. The guiding body 1 has vertical anti-wear surfaces on lon-gitudinal and tran~versal planes in the contact area between the sleeve 3 and the element 8. It acts thus as a transversal end longitudinal guiding element between the sleeve 3 (and hence the wheel 5) and the part 8 (and hence the side member 6 of the frame of the bogie)D
hdvantageously, -two bod-ies 1 are provided, posi-tioned symmetrically on opposite sides of the axle of the wheel 5.
By suitably varying the thickness of -the body or of the bodies 1, the value can be varied of the clear ance between the sleeve 3 and the side member 6 of the bogie1 in a longitu~inal direction as well as in a trans versal direction~ equally or differently, end on the basis of the acceleration measurements above mentioned.
~he variation of the clearance produces a variation of the respon~e, as for frequency as well as for am-plitude, of the primary suspension in the horizontal plane. I-t is there~ore possible to deterrnine, during the tests on the field~ the optimum value o~ the same clearance, for which, in the cornplex multi-mass dynam ~ 7~15~
ic phenomenon being con~idered, in function of the ir-regularities of the track and of the running ~peeds of the vehicle, the minimum value are produced of the ac-celerations~ and i~ consequently possible to install the device 1 of the most suitable measure for obtaining an optimum behaviour and running comfort o~ the vehicle along the whole path.
The body 1, which advantageously has its cross sec tion o~ U shape, can be fixed on the sleeve ~, as it i~
shown in the drawing, or to the element 8 solid with the frame of the bogie.
As it can be under~tood from what described, the de vice according -to the invention can be easily in~talled in any type of primary ~uspension, of existing type, 15 or of new type, with springs made of steel and~ or of rubber.
- . ,. .
- . ,
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A railway bogie in which each wheel has an axle mounted in a bearing in a sleeve member which is directly coupled to the bogie frame through primary suspension units which allow vibration of the sleeve member relative to the frame in a hori-zontal plane, each primary suspension unit comprising a resilient member sandwiched between a first housing element fixed to the bogie frame and a second housing element fixed to the sleeve member, wherein between the sleeve member and at least one adja-cent first housing element, a guide body is replaceably mounted, the guide body being shaped and positioned to provide longitu-dinal and transverse clearances between the first housing element and the sleeve member which allows movement in a vertical direc-tion but limits movement in the longitudinal and transverse dir-ections in the horizontal plane.
2. A bogie as claimed in claim 1, in which each guide body has a U-shaped cross-section and anti-wear surfaces extend-ing in longitudinal and transverse vertical planes bounding the clearance.
3. A bogie as claimed in claim 1 or 2, in which each guide body is removably fastened to its sleeve member.
4. A bogie as claimed in claim 1, in which each wheel has two guide bodies positioned symmetrical on opposite sides of the wheel axle.
5. A bogie as claimed in claim 4, in which the primary suspension for each wheel comprises two suspension units located on opposite sides on the wheel axle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT23581B/84 | 1984-10-22 | ||
| IT8423581U IT8423581V0 (en) | 1984-10-22 | 1984-10-22 | ANTI-WEAR GUIDE DEVICE FOR PRIMARY SUSPENSIONS OF RAILWAY TROLLEYS. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1270151A true CA1270151A (en) | 1990-06-12 |
Family
ID=11208303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000493412A Expired - Lifetime CA1270151A (en) | 1984-10-22 | 1985-10-21 | Anti-wear guiding device for primary suspensions of railway bogies |
Country Status (19)
| Country | Link |
|---|---|
| KR (1) | KR910000937B1 (en) |
| AU (1) | AU578927B2 (en) |
| BE (1) | BE903495A (en) |
| BR (1) | BR6501630U (en) |
| CA (1) | CA1270151A (en) |
| DE (1) | DE3502796A1 (en) |
| DK (1) | DK481885A (en) |
| ES (1) | ES8701639A1 (en) |
| FI (1) | FI85248C (en) |
| FR (1) | FR2572042B1 (en) |
| GB (1) | GB2165807B (en) |
| GR (1) | GR852551B (en) |
| IT (1) | IT8423581V0 (en) |
| LU (1) | LU86132A1 (en) |
| NL (1) | NL8502867A (en) |
| NO (1) | NO160423C (en) |
| PT (1) | PT81354B (en) |
| SE (1) | SE461969B (en) |
| ZA (1) | ZA851015B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0741836B2 (en) * | 1986-01-29 | 1995-05-10 | 財団法人鉄道総合技術研究所 | Self-axle steering cart |
| AT394981B (en) * | 1988-09-23 | 1992-08-10 | Sgp Verkehrstechnik | UNDERCARRIAGE FOR RAIL VEHICLES |
| CN103336172B (en) * | 2013-06-24 | 2015-10-28 | 绵阳市维博电子有限责任公司 | A kind of meter shaft frequency signal detection method and circuit |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US444095A (en) * | 1891-01-06 | Loom-shuttle | ||
| DE1159492B (en) * | 1960-02-27 | 1963-12-19 | Uerdingen Ag Waggonfabrik | Axle bushing guide for rail vehicles with lateral sliding jaws, pins and adjusting plates |
| BE648895A (en) * | 1963-05-22 | |||
| BE795115A (en) * | 1972-02-10 | 1973-05-29 | Talbot Waggonfab | TRACK VEHICLE BOGGIE |
| DE2360231C2 (en) * | 1973-12-04 | 1984-03-15 | Duewag AG, 4150 Krefeld | Axle bearing guide |
| GB1532495A (en) * | 1976-02-20 | 1978-11-15 | British Steel Corp | Railway wagon suspension unit |
| US4168666A (en) * | 1976-07-26 | 1979-09-25 | The Polymer Corporation | Railway truck floating pedestal liner |
| US4094253A (en) * | 1976-07-26 | 1978-06-13 | The Polymer Corporation | Railway truck floating pedestal wear liner |
| GB2035238B (en) * | 1978-11-14 | 1983-03-23 | British Steel Corp | Railway wagon suspension units |
| US4313384A (en) * | 1980-07-10 | 1982-02-02 | Dayco Corporation | Pedestal liner for railway vehicle and method of making same |
| US4440095A (en) * | 1981-02-19 | 1984-04-03 | Dayco Corporation | Wear member for railway vehicle |
-
1984
- 1984-10-22 IT IT8423581U patent/IT8423581V0/en unknown
-
1985
- 1985-01-29 DE DE19853502796 patent/DE3502796A1/en not_active Ceased
- 1985-02-05 AU AU38460/85A patent/AU578927B2/en not_active Ceased
- 1985-02-11 KR KR1019850000835A patent/KR910000937B1/en not_active IP Right Cessation
- 1985-02-11 ZA ZA851015A patent/ZA851015B/en unknown
- 1985-10-21 GB GB08525862A patent/GB2165807B/en not_active Expired
- 1985-10-21 SE SE8504942A patent/SE461969B/en not_active IP Right Cessation
- 1985-10-21 NL NL8502867A patent/NL8502867A/en not_active Application Discontinuation
- 1985-10-21 CA CA000493412A patent/CA1270151A/en not_active Expired - Lifetime
- 1985-10-21 FI FI854092A patent/FI85248C/en not_active IP Right Cessation
- 1985-10-21 ES ES548763A patent/ES8701639A1/en not_active Expired
- 1985-10-21 DK DK481885A patent/DK481885A/en not_active Application Discontinuation
- 1985-10-21 NO NO854198A patent/NO160423C/en unknown
- 1985-10-22 FR FR858515652A patent/FR2572042B1/en not_active Expired
- 1985-10-22 LU LU86132A patent/LU86132A1/en unknown
- 1985-10-22 BR BR6501630U patent/BR6501630U/en not_active IP Right Cessation
- 1985-10-22 PT PT81354A patent/PT81354B/en not_active IP Right Cessation
- 1985-10-22 BE BE0/215760A patent/BE903495A/en not_active IP Right Cessation
- 1985-10-22 GR GR852551A patent/GR852551B/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GR852551B (en) | 1986-02-24 |
| FI854092A0 (en) | 1985-10-21 |
| GB8525862D0 (en) | 1985-11-27 |
| GB2165807B (en) | 1988-12-29 |
| KR910000937B1 (en) | 1991-02-19 |
| NO160423C (en) | 1989-04-19 |
| BE903495A (en) | 1986-04-22 |
| BR6501630U (en) | 1986-12-23 |
| SE8504942D0 (en) | 1985-10-21 |
| ES548763A0 (en) | 1986-12-01 |
| DK481885D0 (en) | 1985-10-21 |
| ES8701639A1 (en) | 1986-12-01 |
| AU3846085A (en) | 1986-05-01 |
| AU578927B2 (en) | 1988-11-10 |
| PT81354A (en) | 1985-11-01 |
| FI85248B (en) | 1991-12-13 |
| FR2572042A1 (en) | 1986-04-25 |
| LU86132A1 (en) | 1986-06-11 |
| GB2165807A (en) | 1986-04-23 |
| ZA851015B (en) | 1985-10-30 |
| FR2572042B1 (en) | 1989-12-08 |
| FI85248C (en) | 1992-03-25 |
| NO854198L (en) | 1986-04-23 |
| SE8504942L (en) | 1986-04-23 |
| DK481885A (en) | 1986-04-23 |
| NO160423B (en) | 1989-01-09 |
| PT81354B (en) | 1991-10-31 |
| KR860003130A (en) | 1986-05-21 |
| DE3502796A1 (en) | 1986-04-24 |
| IT8423581V0 (en) | 1984-10-22 |
| FI854092L (en) | 1986-04-23 |
| NL8502867A (en) | 1986-05-16 |
| SE461969B (en) | 1990-04-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |