CA2218252A1 - Support for a carriage body on a chassis - Google Patents
Support for a carriage body on a chassis Download PDFInfo
- Publication number
- CA2218252A1 CA2218252A1 CA 2218252 CA2218252A CA2218252A1 CA 2218252 A1 CA2218252 A1 CA 2218252A1 CA 2218252 CA2218252 CA 2218252 CA 2218252 A CA2218252 A CA 2218252A CA 2218252 A1 CA2218252 A1 CA 2218252A1
- Authority
- CA
- Canada
- Prior art keywords
- support component
- bearing surface
- support
- car body
- 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.)
- Abandoned
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Sliding-Contact Bearings (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention is based on a support for a carriage body (11) on a chassis, especially a chassis (10) of a rail vehicle, with a rocker post (12) fitted between the chassis (10) and the carriage body (11) which is supported via a lower link on the chassis (10) and on which the carriage body (11) is supported via an upper link in the form of a curved contact joint. To reduce wear on the upper link, the rocker post (12) comprises a first support component (13) and a second support component (14) arranged between the first component (13) and the carriage body (11). In addition, a bearing surface of the carriage body (11) lies on a first bearing surface (27) of the second support component (14) and a second bearing surface (28) of the second support component (14) lies on a bearing surface (32) of the first component (13). At least one of the two contacting bearing surfaces (27, 30, 28, 32) is cylindrical and the support between a pair of bearing surfaces is linear. Finally, the generatrices of the at least one cylindrical bearing surface (32) between the first (13) and second (14) support components run secured against rotation perpendicularly to the generatrices of the at least one cylindrical bearing surface (27) between the second support component (14) and the carriage body (11).
Description
CA 022182~2 1997-10-14 ' - f~ f .', : ., SPECIFICATION
SUPPORT FOR A CAR BODY ON A CHASSIS
The present invention proceeds from a support which is arranged between a car body and a chassis, in particular a truck of a rail vehicle, has a rocker column between the chassis and the car body in accordance with the preamble to Claim 1, and on which the car body rests via an upper joint which is developed in the form of a curved contact joint.
Such a support is known from Federal Republic of German 833 745. In that known support, the curved contact joint is formed by two bearing surfaces one on the car body and one on the rocker column, the bearing surface on the car body being flat and the bearing surface on the rocker column being spherical. By lateral guides between the car body and the rocker column it is seen to it that, upon relative horizontal movement between car body and chassis, the rocker column does not shift on the flat bearing surface of the car body but by its spherical bearing surface rolls on the flat bearing surface. The known support has the disadvantage that the two bearing surfaces contact each other only at a point and that the material therefore is subjected to a high pressure per unit of area. This can lead to rapid wear and to a disturbance in the rolling movement between the two bearing - - CA 022182~2 1997-10-14 surfaces. Furthermore, the known support does not make it possible to distinguish the rolling movements in different directions from each other.
In the known support, there is also provided between the rocker column and the chassis a curved contact joint which has a spherical bearing surface on the rocker column and a flat bearing surface on the chassis. The two spherical bearing surfaces on the rocker column have a common center.
The object of the invention is further to develop a support having the features set forth in the preamble to Claim 1 in such a manner that the wear on the contacting bearing surfaces is reduced.
This object is achieved, in accordance with the invention, by a support in which, in addition to the features set forth in the preamble to Claim 1, the features set forth in the body of the claim are also realized. In accordance therewith, the rocker column and the car body are connected to each other by a sort of universal joint having two pairs of bearing surfaces. The one pair of bearing surfaces is located between the second support component and the car body and the other pair of bearing surfaces is located between the second support component and the first support component. At least one bearing surface of a pair of bearing surfaces is a cylindrical surface. The other bearing surface may also be cylindrical but is preferably flat. In any event, there is CA 022182~2 1997-10-14 linear contact between the two bearing surfaces of a pair of bearing surfaces, so that the pressure per unit of area on the materials is substantially less than in the case of punctiform contact. Due to the fact that the generatrices of said at least one cylindrical bearing surface of the one pair of bearing surfaces extend, secured against rotation, perpendicular to the generatrices of the at least one cylindrical bearing surface of the other pair of bearing surfaces, a rolling movement on the pairs of bearing surfaces is possible regardless of the direction of the relative movement between car body and chassis.
Advantageous embodiments of a support in accordance with the invention can be noted from the dependent claims.
The rolling movement upon a swinging of the rocker column in a plane which is perpendicular to the generatrices of a cylindrical bearing surface of the one pair of bearing surfaces can now easily be different than upon a swinging of the rocker column in a plane which is perpendicular to the generatrices of a cylindrical bearing surface of the other pair of bearing surfaces. For this purpose, only the bearing surfaces are developed differently, for instance with respect to curva,ture or with respect to the position of their center line. Furthermore then, in accordance with Claim 2, the cylindrical bearing surfaces are arranged secured against rotation with respect to the car body or chassis so that the CA 022182~2 1997-10-14 conditions always remain substantially the same.
In accordance with Claim 3, the generatrices of the at least one cylindrical bearing surface of the one pair of bearing surfaces extend in the longitudinal direction of the chassis or the car body. The at least one cylindrical bearing surface of the other pair of bearing surfaces then of course extends perpendicularly and therefore in the transverse direction to the chassis or the car body.
Relative movement between car body and truck only in longitudinal direction or only in transverse direction is then possible only by a rolling of the two bearing surfaces of the one pair of bearing surfaces on one another. It may be pointed out here that upon straight-ahead travel the lengthwise direction of the chassis and that of the car body agree with each other and with the direction of travel. Upon travel around a curve, there is a small angle between the lengthwise direction of the car body and the lengthwise direction of the chassis.
In the interest of simple manufacture of the bearing surface, it is favorable if a cylindrical bearing surface of a pair of bearing surfaces, in particular the cylindrical bearing surface of each pair of bearing surfaces, is of circular cylindrical shape, as in the case of the embodiments in accordance with Claims 4 and 5. In the interest of simplicity in manufacture, it is also advisable if, in CA 022182~2 1997-10-14 accordance with Claim 6 or Claim 7 one of the bearing surfaces of a pair of bearing surfaces is, in each case, a flat surface.
In accordance with Claim 8, the entire rocker column is advantageously fixed against rotation with respect to the chassis or the car body and is turnable around its longitudinal axis with respect to the other part. Upon travel around curves, during which the car body is turned around a vertical axis with respect to the chassis, parts of the rocker column are therefore not turned with respect to each other but the rocker column is turned as a whole with respect to the car body or the chassis. In accordance with Claim 10, at least one pair of bearing surfaces is developed in such a manner that, upon a rolling movement out of the center position of the rocker column, the distance between the car body and the chassis is increased. This has the result that, due to the weight of the car body itself, a restoring force occurs when the rocker column is swung. Such a restoring force is desirable in rail vehicles, at least for a relative movement between car body and chassis in transverse direction.
Claims 11 to 13 refer to a favorable arrangement of guide elements to prevent the shifting of the two bearing surfaces of a pair of bearing surfaces and a turning of two structural parts of the rocker column or of one of the parts - CA 022182~2 1997-10-14 of the rocker column and the car body or of the chassis with respect to each other.
In accordance with Claim 14, the rocker column comprises a third support component which is arranged between the first support component and the chassis. In each case, a curved contact ~oint having bearing surfaces which contact each other linearly is provided between the first support component and the third support component as well as between the third support component and the chassis, at least one of the two bearing surfaces which contact each other being cylindrical.
It is particularly advantageous if the second support component and the third support component are of the same shape.
In accordance with Claim 17, an entire turn device is provided between the first support component and the second support component and between the first support component and the third support component. By another anti-turn lock between the third support component and the chassis, the entire rocker column is thus secured against turning with respect to the chassis. By a further anti-turn device between the second support component and the car body, and without anti-turn device with respect to the chassis, the entire rocker column is secured against rotation relative to the car body.
CA 022182~2 1997-10-14 By a development in accordance with Claim 18, the result is obtained that the distance between the car body and the chassis is increased when the rocker column is swung out of its central position. In this way, the restoring force mentioned above is obtained.
One embodiment of the supporting of a car body on a chassis in accordance with the invention is shown in the drawings. The invention will now be explained in further detail with reference to the figures.
In the drawings, Fig. 1 is a vertical section through the embodiment passing centrally through the rocker column; and Fig. 2 is a section along the line II-II of Fig. 1.
The figures show part of a truck 10 and part of a car body 11 of a rail vehicle. Two rocker columns, one of which is shown in the figures, are arranged between truck 10 and car body 11.
The rocker column, which is indicated generally by the reference numeral 12, consists of three components, namely a central first support component 13 as well as a second support component 14 which is arranged between the first support component 13 and the car body 11, and a third support component 15 which is arranged between the first support component 13 and the truck 10. The third support component 15 has essentially the shape of a cylindrical segment having CA 022182~2 1997-10-14 a circular cylindrical bearing surface which faces the truck 10 and rests linearly on a flat bearing surface 17 of the truck lO and can roll on said surface. The radius of the circular cylindrical bearing surface 16 is as large as the distance of the car body 11 from the truck 10 when the rocker column 12 is in its central position. In this central position, therefore, the distance between the line of contact 18 of the two bearing surfaces 16 and 17 and the center line 19 of the circular cylindrical bearing surface 16 is twice as great as the distance between the line of contact 18 and the horizontal central plane 20 between the truck 10 and the car body 11 and the central plane of the rocker column 12 which coincides therewith.
On both ends, the third support component 15 is framed by a side plate 21 of the truck 10 and is thereby secured against rotation with respect to the truck 10. Displacement of the third support component relative to the truck 10 in a direction perpendicular to the generatrices of the circular cylindrical bearing surface 16 is prevented by one or two teeth 22 which are seated firmly on the third support component 15, extend beyond its bearing surface 16, and extend in each case into a depression 23 in the truck lO.
The flanks of the teeth 22 start at the bearing surface on which the teeth are seated and end in a tooth tip and are, in cross section, involutes to a circle. The profile of a tooth CA 022182~2 1997-10-14 22 therefore corresponds to an involute toothing. The depressions 23 have a trapezoidal cross section. The tooth flanks and the flanks of the depressions contact each other linearly. Upon the rolling of the third support component 15 on the truck 10, a rolling-sliding takes place between the teeth 22 and the depressions 23. In the event that securing against turning between the support component 15 and the truck 10 is also assured by the teeth 22, the side plate 21 of the truck 10 can be dispensed with.
Facing the first support component 12, the third support component 15 has a flat bearing surface 25 which is flanked in a direction parallel to the generatrices of the circular cylindrical bearing surface 16 by two lateral side plates 26.
The second support component 14 is of the same shape as the third support component 15, but is installed turned 180~
around an axis extending parallel to the center line 19 with respect to the support component 15. Accordingly, it has a bearing surface 27 which is identical to the circular cylindrical bearing surface 16 of the support component 15, a flat bearing surface 28 facing the first support component 13, and two lateral side plates 29. The center line of the circular cylindrical bearing surface 27 coincides in the central position of the rocker column 12 with the contact line 18 between the bearing surfaces 16 and 17. The support component 14 engages by two teeth 22 into two depressions 23 CA 022182~2 1997-10-14 in the car body 11.
The car body 11 rests via a flat bearing surface 30 on the circular cylindrical bearing surface 27 of the support component 14. In the central position of the rocker column, the line of contact between the bearing surfaces 27 and 30 coincides with the center line 19 of the bearing surface 16.
The middle, second support component 13 has the shape of a bi-convex cylindrical lens and has two circular cylindrical bearing surfaces 31 and 32 which have the same curvature, the bearing surface 31 contacting the flat bearing surface 26 of the support component 15 and the bearing surface 32 contacting the flat bearing surface 28 of the support component 14. As a whole, the central support component 13 is symmetrical to a central plane extending parallel to the generatrices of the bearing surfaces 31 and 32, which plane coincides with the plane 20 in the central position of the rocker column 12.
The side plates 26 and 29 of the support components 15 and 14 surround the middle support component 13 at its end surfaces so that a securing against turning is assured between all support components. The generatrices of the circular cylindrical bearing surfaces 31 and 32 of the support component 13 extend perpendicular to the generatrices of the circular cylindrical bearing surfaces 16 and 27. The generatrices of the bearing surfaces 16 and 27 may, for CA 022182~2 1997-10-14 example, extend in the lengthwise direction of the chassis 10 (sic) and the generatrices of the bearing surfaces 31 and 32 perpendicular to the lengthwise direction of the truck 10.
As a whole, therefore, all components of the rocker column 12 are secured against rotation with respect to each other and with respect to the truck 10.
In order that the bearing surfaces 25 and 31 on the one hand as well as the bearing surfaces 28 and 32 on the other hand do not shift with respect to each other, one or two teeth 22 which extend into trapezoidal depressions 23 in the support components 14 and 15 are provided in each bearing surface 31 and 32 of the support component 13. The teeth 22 on the support component 13 and the depressions 23 on the support components 14 and 15 can also assure the securing against turning of the components with respect to each other.
The center lines of the two bearing surfaces 31 and 32 of the support component 13 therefore lie in each case far on the other side of the center plane of the support component 13 so that, in the central position of the rocker column, the distance between the line of contact of a circular cylindrical bearing surface 31 or 32 and the center line of said bearing surface is substantially greater than the distance between the line of contact and the center plane which, when the rocker column is deflected outwards, at the same time also forms the center plane between the truck 10 CA 022l82~2 l997- lO- l4 and the car body 11.
In the same way as the support component 15 is secured against turning by side plates 21 of the truck 10, the support component 14 could also be secured against turning by side plates of the car body 11, insofar as this function is not assigned to the teeth 22 seated on the support component 14 which, by engagement into depressions 23 in the car body 11, prevent the sliding of the surfaces 27 and 30 on each other.
In the figures, the rocker column as well as the truck 10 and the car body 11 are shown by solid lines in a position in which the rocker column assumes a central position and is not swung. If a force now acts on the car body 11 in the direction of the arrow A, then the car body 11 will be shifted in the direction of the arrow A with respect to the truck 10, the distance being limited by a stop having a large spring constant. Upon the displacement, the two surfaces 16 and 17 of the support component 15 and the truck 10, as well as the two surfaces 27 and 30 of the support component 14 and the car body 11 roll on each other. The rocker column 12 comes into an oblique position, the distance between the car body and the truck increasing in accordance with the value selected for the curvatures of the circular cylindrical bearing surfaces 16 and 27 and the minimum distance between the car body 11 and the truck 10, the car body being thus CA 022l82~2 l997- lO- l4 lifted. In Fig. 1, the rocker column 12 is shown in dashed lines upon maximum deflection and the car body 11 is shown in dashed lines upon maximum displacement upon pure transverse movement, the car body being thereby lifted by the amount s.
Upon a longitudinal displacement of the car body 11 with respect to the truck 10, the bearing surfaces 31 and 25, on the one hand, and the bearing surfaces 32 and 28, on the other hand, roll on each other. In this connection, the car body 11 is also raised. Upon a movement of the car body 11 with respect to the truck 10 which has both a component in transverse direction and a component in longitudinal direction, all bearing surfaces roll on one another.
SUPPORT FOR A CAR BODY ON A CHASSIS
The present invention proceeds from a support which is arranged between a car body and a chassis, in particular a truck of a rail vehicle, has a rocker column between the chassis and the car body in accordance with the preamble to Claim 1, and on which the car body rests via an upper joint which is developed in the form of a curved contact joint.
Such a support is known from Federal Republic of German 833 745. In that known support, the curved contact joint is formed by two bearing surfaces one on the car body and one on the rocker column, the bearing surface on the car body being flat and the bearing surface on the rocker column being spherical. By lateral guides between the car body and the rocker column it is seen to it that, upon relative horizontal movement between car body and chassis, the rocker column does not shift on the flat bearing surface of the car body but by its spherical bearing surface rolls on the flat bearing surface. The known support has the disadvantage that the two bearing surfaces contact each other only at a point and that the material therefore is subjected to a high pressure per unit of area. This can lead to rapid wear and to a disturbance in the rolling movement between the two bearing - - CA 022182~2 1997-10-14 surfaces. Furthermore, the known support does not make it possible to distinguish the rolling movements in different directions from each other.
In the known support, there is also provided between the rocker column and the chassis a curved contact joint which has a spherical bearing surface on the rocker column and a flat bearing surface on the chassis. The two spherical bearing surfaces on the rocker column have a common center.
The object of the invention is further to develop a support having the features set forth in the preamble to Claim 1 in such a manner that the wear on the contacting bearing surfaces is reduced.
This object is achieved, in accordance with the invention, by a support in which, in addition to the features set forth in the preamble to Claim 1, the features set forth in the body of the claim are also realized. In accordance therewith, the rocker column and the car body are connected to each other by a sort of universal joint having two pairs of bearing surfaces. The one pair of bearing surfaces is located between the second support component and the car body and the other pair of bearing surfaces is located between the second support component and the first support component. At least one bearing surface of a pair of bearing surfaces is a cylindrical surface. The other bearing surface may also be cylindrical but is preferably flat. In any event, there is CA 022182~2 1997-10-14 linear contact between the two bearing surfaces of a pair of bearing surfaces, so that the pressure per unit of area on the materials is substantially less than in the case of punctiform contact. Due to the fact that the generatrices of said at least one cylindrical bearing surface of the one pair of bearing surfaces extend, secured against rotation, perpendicular to the generatrices of the at least one cylindrical bearing surface of the other pair of bearing surfaces, a rolling movement on the pairs of bearing surfaces is possible regardless of the direction of the relative movement between car body and chassis.
Advantageous embodiments of a support in accordance with the invention can be noted from the dependent claims.
The rolling movement upon a swinging of the rocker column in a plane which is perpendicular to the generatrices of a cylindrical bearing surface of the one pair of bearing surfaces can now easily be different than upon a swinging of the rocker column in a plane which is perpendicular to the generatrices of a cylindrical bearing surface of the other pair of bearing surfaces. For this purpose, only the bearing surfaces are developed differently, for instance with respect to curva,ture or with respect to the position of their center line. Furthermore then, in accordance with Claim 2, the cylindrical bearing surfaces are arranged secured against rotation with respect to the car body or chassis so that the CA 022182~2 1997-10-14 conditions always remain substantially the same.
In accordance with Claim 3, the generatrices of the at least one cylindrical bearing surface of the one pair of bearing surfaces extend in the longitudinal direction of the chassis or the car body. The at least one cylindrical bearing surface of the other pair of bearing surfaces then of course extends perpendicularly and therefore in the transverse direction to the chassis or the car body.
Relative movement between car body and truck only in longitudinal direction or only in transverse direction is then possible only by a rolling of the two bearing surfaces of the one pair of bearing surfaces on one another. It may be pointed out here that upon straight-ahead travel the lengthwise direction of the chassis and that of the car body agree with each other and with the direction of travel. Upon travel around a curve, there is a small angle between the lengthwise direction of the car body and the lengthwise direction of the chassis.
In the interest of simple manufacture of the bearing surface, it is favorable if a cylindrical bearing surface of a pair of bearing surfaces, in particular the cylindrical bearing surface of each pair of bearing surfaces, is of circular cylindrical shape, as in the case of the embodiments in accordance with Claims 4 and 5. In the interest of simplicity in manufacture, it is also advisable if, in CA 022182~2 1997-10-14 accordance with Claim 6 or Claim 7 one of the bearing surfaces of a pair of bearing surfaces is, in each case, a flat surface.
In accordance with Claim 8, the entire rocker column is advantageously fixed against rotation with respect to the chassis or the car body and is turnable around its longitudinal axis with respect to the other part. Upon travel around curves, during which the car body is turned around a vertical axis with respect to the chassis, parts of the rocker column are therefore not turned with respect to each other but the rocker column is turned as a whole with respect to the car body or the chassis. In accordance with Claim 10, at least one pair of bearing surfaces is developed in such a manner that, upon a rolling movement out of the center position of the rocker column, the distance between the car body and the chassis is increased. This has the result that, due to the weight of the car body itself, a restoring force occurs when the rocker column is swung. Such a restoring force is desirable in rail vehicles, at least for a relative movement between car body and chassis in transverse direction.
Claims 11 to 13 refer to a favorable arrangement of guide elements to prevent the shifting of the two bearing surfaces of a pair of bearing surfaces and a turning of two structural parts of the rocker column or of one of the parts - CA 022182~2 1997-10-14 of the rocker column and the car body or of the chassis with respect to each other.
In accordance with Claim 14, the rocker column comprises a third support component which is arranged between the first support component and the chassis. In each case, a curved contact ~oint having bearing surfaces which contact each other linearly is provided between the first support component and the third support component as well as between the third support component and the chassis, at least one of the two bearing surfaces which contact each other being cylindrical.
It is particularly advantageous if the second support component and the third support component are of the same shape.
In accordance with Claim 17, an entire turn device is provided between the first support component and the second support component and between the first support component and the third support component. By another anti-turn lock between the third support component and the chassis, the entire rocker column is thus secured against turning with respect to the chassis. By a further anti-turn device between the second support component and the car body, and without anti-turn device with respect to the chassis, the entire rocker column is secured against rotation relative to the car body.
CA 022182~2 1997-10-14 By a development in accordance with Claim 18, the result is obtained that the distance between the car body and the chassis is increased when the rocker column is swung out of its central position. In this way, the restoring force mentioned above is obtained.
One embodiment of the supporting of a car body on a chassis in accordance with the invention is shown in the drawings. The invention will now be explained in further detail with reference to the figures.
In the drawings, Fig. 1 is a vertical section through the embodiment passing centrally through the rocker column; and Fig. 2 is a section along the line II-II of Fig. 1.
The figures show part of a truck 10 and part of a car body 11 of a rail vehicle. Two rocker columns, one of which is shown in the figures, are arranged between truck 10 and car body 11.
The rocker column, which is indicated generally by the reference numeral 12, consists of three components, namely a central first support component 13 as well as a second support component 14 which is arranged between the first support component 13 and the car body 11, and a third support component 15 which is arranged between the first support component 13 and the truck 10. The third support component 15 has essentially the shape of a cylindrical segment having CA 022182~2 1997-10-14 a circular cylindrical bearing surface which faces the truck 10 and rests linearly on a flat bearing surface 17 of the truck lO and can roll on said surface. The radius of the circular cylindrical bearing surface 16 is as large as the distance of the car body 11 from the truck 10 when the rocker column 12 is in its central position. In this central position, therefore, the distance between the line of contact 18 of the two bearing surfaces 16 and 17 and the center line 19 of the circular cylindrical bearing surface 16 is twice as great as the distance between the line of contact 18 and the horizontal central plane 20 between the truck 10 and the car body 11 and the central plane of the rocker column 12 which coincides therewith.
On both ends, the third support component 15 is framed by a side plate 21 of the truck 10 and is thereby secured against rotation with respect to the truck 10. Displacement of the third support component relative to the truck 10 in a direction perpendicular to the generatrices of the circular cylindrical bearing surface 16 is prevented by one or two teeth 22 which are seated firmly on the third support component 15, extend beyond its bearing surface 16, and extend in each case into a depression 23 in the truck lO.
The flanks of the teeth 22 start at the bearing surface on which the teeth are seated and end in a tooth tip and are, in cross section, involutes to a circle. The profile of a tooth CA 022182~2 1997-10-14 22 therefore corresponds to an involute toothing. The depressions 23 have a trapezoidal cross section. The tooth flanks and the flanks of the depressions contact each other linearly. Upon the rolling of the third support component 15 on the truck 10, a rolling-sliding takes place between the teeth 22 and the depressions 23. In the event that securing against turning between the support component 15 and the truck 10 is also assured by the teeth 22, the side plate 21 of the truck 10 can be dispensed with.
Facing the first support component 12, the third support component 15 has a flat bearing surface 25 which is flanked in a direction parallel to the generatrices of the circular cylindrical bearing surface 16 by two lateral side plates 26.
The second support component 14 is of the same shape as the third support component 15, but is installed turned 180~
around an axis extending parallel to the center line 19 with respect to the support component 15. Accordingly, it has a bearing surface 27 which is identical to the circular cylindrical bearing surface 16 of the support component 15, a flat bearing surface 28 facing the first support component 13, and two lateral side plates 29. The center line of the circular cylindrical bearing surface 27 coincides in the central position of the rocker column 12 with the contact line 18 between the bearing surfaces 16 and 17. The support component 14 engages by two teeth 22 into two depressions 23 CA 022182~2 1997-10-14 in the car body 11.
The car body 11 rests via a flat bearing surface 30 on the circular cylindrical bearing surface 27 of the support component 14. In the central position of the rocker column, the line of contact between the bearing surfaces 27 and 30 coincides with the center line 19 of the bearing surface 16.
The middle, second support component 13 has the shape of a bi-convex cylindrical lens and has two circular cylindrical bearing surfaces 31 and 32 which have the same curvature, the bearing surface 31 contacting the flat bearing surface 26 of the support component 15 and the bearing surface 32 contacting the flat bearing surface 28 of the support component 14. As a whole, the central support component 13 is symmetrical to a central plane extending parallel to the generatrices of the bearing surfaces 31 and 32, which plane coincides with the plane 20 in the central position of the rocker column 12.
The side plates 26 and 29 of the support components 15 and 14 surround the middle support component 13 at its end surfaces so that a securing against turning is assured between all support components. The generatrices of the circular cylindrical bearing surfaces 31 and 32 of the support component 13 extend perpendicular to the generatrices of the circular cylindrical bearing surfaces 16 and 27. The generatrices of the bearing surfaces 16 and 27 may, for CA 022182~2 1997-10-14 example, extend in the lengthwise direction of the chassis 10 (sic) and the generatrices of the bearing surfaces 31 and 32 perpendicular to the lengthwise direction of the truck 10.
As a whole, therefore, all components of the rocker column 12 are secured against rotation with respect to each other and with respect to the truck 10.
In order that the bearing surfaces 25 and 31 on the one hand as well as the bearing surfaces 28 and 32 on the other hand do not shift with respect to each other, one or two teeth 22 which extend into trapezoidal depressions 23 in the support components 14 and 15 are provided in each bearing surface 31 and 32 of the support component 13. The teeth 22 on the support component 13 and the depressions 23 on the support components 14 and 15 can also assure the securing against turning of the components with respect to each other.
The center lines of the two bearing surfaces 31 and 32 of the support component 13 therefore lie in each case far on the other side of the center plane of the support component 13 so that, in the central position of the rocker column, the distance between the line of contact of a circular cylindrical bearing surface 31 or 32 and the center line of said bearing surface is substantially greater than the distance between the line of contact and the center plane which, when the rocker column is deflected outwards, at the same time also forms the center plane between the truck 10 CA 022l82~2 l997- lO- l4 and the car body 11.
In the same way as the support component 15 is secured against turning by side plates 21 of the truck 10, the support component 14 could also be secured against turning by side plates of the car body 11, insofar as this function is not assigned to the teeth 22 seated on the support component 14 which, by engagement into depressions 23 in the car body 11, prevent the sliding of the surfaces 27 and 30 on each other.
In the figures, the rocker column as well as the truck 10 and the car body 11 are shown by solid lines in a position in which the rocker column assumes a central position and is not swung. If a force now acts on the car body 11 in the direction of the arrow A, then the car body 11 will be shifted in the direction of the arrow A with respect to the truck 10, the distance being limited by a stop having a large spring constant. Upon the displacement, the two surfaces 16 and 17 of the support component 15 and the truck 10, as well as the two surfaces 27 and 30 of the support component 14 and the car body 11 roll on each other. The rocker column 12 comes into an oblique position, the distance between the car body and the truck increasing in accordance with the value selected for the curvatures of the circular cylindrical bearing surfaces 16 and 27 and the minimum distance between the car body 11 and the truck 10, the car body being thus CA 022l82~2 l997- lO- l4 lifted. In Fig. 1, the rocker column 12 is shown in dashed lines upon maximum deflection and the car body 11 is shown in dashed lines upon maximum displacement upon pure transverse movement, the car body being thereby lifted by the amount s.
Upon a longitudinal displacement of the car body 11 with respect to the truck 10, the bearing surfaces 31 and 25, on the one hand, and the bearing surfaces 32 and 28, on the other hand, roll on each other. In this connection, the car body 11 is also raised. Upon a movement of the car body 11 with respect to the truck 10 which has both a component in transverse direction and a component in longitudinal direction, all bearing surfaces roll on one another.
Claims (18)
1. Support for a car body (11) on a chassis, in particular on a truck (10) of a rail vehicle, having a rocker column (12) arranged between the chassis (10) and the car body (11), which is supported via a lower joint on the chassis (10) and on which the car body (11) rests via an upper joint developed as a curved contact joint, characterized by the fact that the rocker column (12) comprises a first support component (13) and a second support component (14) which is arranged between the first support component (13) and the car body (11); that the car body (11) lies via a bearing surface (30) on a first bearing surface (27) of the second support component (14) and the second support component (14) lies via a second bearing surface (28) of a bearing surface (32) of the first support component (13), at least one bearing surface (27, 32) of the two bearing surfaces (27, 30; 28, 32) which contact each other is linear; and that the generatrices of the at least one cylindrical bearing surface (32) between the first support component (13) and the second support component (14) extends, secured against rotation, perpendicular to the generatrices of the at least one cylindrical bearing surface (27) between the second support component (14) and the car body (11).
2. Support according to Claim 1, characterized by the fact that, upon a swinging of the rocker column (12) in the direction of the generatrices of a cylindrical bearing surface (27; 32) of the one pair of bearing surfaces (30, 27; 28, 32), the rolling movement is different than upon a swinging of the column (12) in the direction of the generatrices of a cylindrical bearing surface (32;
27) of the other pair of bearing surfaces (28, 32; 30, 27); and that the cylindrical bearing surfaces (27, 32) are arranged, fixed for rotation with respect to the chassis (10) and/or the car body (11).
27) of the other pair of bearing surfaces (28, 32; 30, 27); and that the cylindrical bearing surfaces (27, 32) are arranged, fixed for rotation with respect to the chassis (10) and/or the car body (11).
3. Support according to Claim 2, characterized by the fact that the generatrices of the at least one cylindrical bearing surface (27; 32) of the one pair of bearing surfaces (27, 30; 28, 32) extend in lengthwise or transverse direction of the chassis (10) or the car body (11) .
4. Support according to Claim 1, 2 or 3, characterized by the fact that a cylindrical bearing surface (27; 32) of a pair of bearing surfaces (27, 30; 28, 32) are developed in circular cylindrical shape.
5. Support according to Claim 4, characterized by the fact that a cylindrical bearing surface (27; 32) of each pair of bearing surfaces (27, 30; 28, 32) is developed in circular cylindrical shape; and that the one circular cylindrical bearing surface (27; 32) has a different radius than the other circular cylindrical bearing surface (32; 27).
6. Support according any of the preceding claims, characterized by the fact that in each case, the other bearing surface (30; 28) of a pair of bearing surfaces (27, 30; 28, 32) is flat.
7. Support according to Claim 6, characterized by the fact that, out of the pair of bearing surfaces (27, 30) on the ear body (11) and on the second support component (14), the bearing surface (30) on the car body (11) is flat and the bearing surface (27) on the second support component (14) is cylindrical; and that, of the pair of bearing surface (28, 32) on the second support component (14) and on the first support component (13), the bearing surface (28) on the second support component (14) is flat and the bearing surface (32) on the first support component (13) is cylindrical.
8. Support according to Claim 7, characterized by the fact that the entire rocker column (12) is fixed in rotation with respect to the chassis (10) and/or with respect to the car body (11).
9. Support according to any of Claims 6 to 8, characterized by the fact that the two flat bearing surfaces (28, 30) are spaced from each other, taking into account their parallel position with respect to each other.
10. Support according to any of the preceding claims, characterized by the fact that at least one pair of bearing surfaces (27, 30; 28, 32) is so developed that upon a rolling movement out of the middle position of the rocker column (12) the distance between the car body (11) and the chassis (10) is increased.
11. Support according to any of the preceding claims, characterized by the fact that guide elements (22, 23) for preventing shifting of two components (11, 13, 14) with respect to each other are located perpendicular to the generatrices of a cylindrical bearing surface (27;
32) of the pair of bearing surfaces (27, 30; 28, 32) between the two components (11, 13, 14) in the bearing surfaces (27, 30; 28, 32).
32) of the pair of bearing surfaces (27, 30; 28, 32) between the two components (11, 13, 14) in the bearing surfaces (27, 30; 28, 32).
12. Support according to Claim 11, characterized by the fact that the guide elements (22, 23) for preventing shifting are located centrally within the bearing surfaces (27, 30; 28, 32).
13. Support according to any of the preceding claims, characterized by the fact that guide elements (22, 23, 29) for preventing rotation of two components (11, 13, 14) with respect to each other are located on the side of the bearing surfaces (27, 30; 28, 32) of the pair of bearing surfaces between the two components (11, 13, 14).
14. Support according to any of the preceding claims, characterized by the fact that the rocker column (12) comprises a third support component (15) which is arranged between the first support component (13) and the chassis (10); that the third support component (15) rests via a first bearing surface (16) on a bearing surface (17) of the chassis (10), and the first support component (13) rests via a second bearing surface (31) on a second bearing surface (25) of the third support component (15), at least one bearing surface (16; 31) of the two bearing surfaces (16, 17; 25, 31) which contact each other being cylindrical and the contact between a pair of bearing surfaces (16, 17; 25, 31) is linear; and that the generatrices of the at least one cylindrical bearing surface (16) between the third support component (15) and the chassis (10) extend, secured against rotation, perpendicular to the generatrices of the at least one cylindrical bearing surface (31) between the third support component (15) and the first support component (13).
15. Support according to Claim 14, characterized by the fact that the generatrices of the cylindrical bearing surfaces (15) between the chassis (10) and the third support component (15) extend parallel to the generatrices of the cylindrical bearing surface (27) between the car body (11) and the second support component (14), and the generatrices of the cylindrical bearing surface (31) between the first support component (13) and the third support component (15) extend parallel to the generatrices of the cylindrical bearing surface (32) between the first support component (13 and the second support component (14).
16. Support according to Claim 14 or 15, characterized by the fact that the second support component (14) and the third support component (15) are of identical shape.
17. Support according to any of Claims 14 to 16, characterized by anti-rotation means (26, 29; 22, 23) between the first support component (13) and the second support component (14) and by anti-rotation means between the first support component (13) and the third support component (15).
18. Support according to any of the preceding claims, characterized by the fact that, when the rocker column (12) is not deflected, the distance between the line of contact (18, 19) of a circular cylindrical bearing surface (16, 27; 31, 32) and the center line (19; 18) of said bearing surface (16, 27; 31, 32) is greater than the distance between the line of contact (18, 19) and the center plane (20) between the two components (10, 11) between which the rocker column (12) is arranged.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19515657.9 | 1995-04-28 | ||
| DE1995115657 DE19515657A1 (en) | 1995-04-28 | 1995-04-28 | Support for a car body on a chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2218252A1 true CA2218252A1 (en) | 1996-10-31 |
Family
ID=7760604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2218252 Abandoned CA2218252A1 (en) | 1995-04-28 | 1996-03-16 | Support for a carriage body on a chassis |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0824436A1 (en) |
| CA (1) | CA2218252A1 (en) |
| DE (1) | DE19515657A1 (en) |
| WO (1) | WO1996033898A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT516917A3 (en) | 2015-02-18 | 2017-12-15 | Siemens Ag Oesterreich | Device for power transmission between chassis frame and car body of a rail vehicle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1921913A (en) * | 1927-03-22 | 1933-08-08 | Symington T H & Son Inc | Truck bolster and side bearing structure with lateral motion means |
| US1958806A (en) * | 1929-12-02 | 1934-05-15 | Symington T H & Son Inc | Lateral motion truck |
-
1995
- 1995-04-28 DE DE1995115657 patent/DE19515657A1/en not_active Withdrawn
-
1996
- 1996-03-16 EP EP96907491A patent/EP0824436A1/en not_active Withdrawn
- 1996-03-16 CA CA 2218252 patent/CA2218252A1/en not_active Abandoned
- 1996-03-16 WO PCT/EP1996/001141 patent/WO1996033898A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE19515657A1 (en) | 1996-10-31 |
| EP0824436A1 (en) | 1998-02-25 |
| WO1996033898A1 (en) | 1996-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |