BOGIE FOR A RAILWAY VEHICLE WITH ROLL STABILISER

Abstract

The invention relates to a bogie for a rail vehicle characterized by a high lightweight construction potential. The bogie (1, 1*, 1**) according to the invention has, for primary suspension, a torsion spring system (12) in the inner volume of which a roll stabilizer having a torsion rod (11) is arranged in a torsionally movable manner. The roll stabilizer can be articulated to the car body of the rail vehicle or to the torsion spring system (12). The bogie (1, 1*, 1**) according to the invention advantageously has a particularly large installation space for built-in components.

Claims

1. A bogie (1, 1*, 1**) for a rail vehicle with at least two wheelsets (2) mounted in axle bearings (21) and with at least one frame (3), wherein each of the two axle bearings (21) of a wheelset (2) is connected in an articulated manner to the frame (3) via an axle guide (22), comprising at least two torsion spring systems (12) which are arranged parallel to the axles (201) of the wheelsets (2) and each of which has at least one region in which they are non-rotatably connected to the frame (3), wherein each torsion spring system (12) has two spring lever arms (4) such that the end region, not connected to the torsion spring system (12), of a spring lever arm (4) acts on the axle bearing (21), wherein the bogie (1, 1*, 1**) has at least one roll stabilizer, comprising a torsion rod (11) which is arranged in a torsionally movable manner in the inner volume of at least one of the torsion spring systems (12).

2. The bogie (1, 1*, 1**) according to claim 1, wherein the end regions of the torsion rod (11) of the roll stabilizer project beyond the torsion spring system (12) and the torsion rod (11) of the roll stabilizer is in each case articulated to mutually opposite outer sides of the car body of the rail vehicle via a pendulum support arrangement (111, 112) arranged at the end.

3. The bogie (1, 1*, 1**) according to claim 1, wherein the torsion rod (11) of the roll stabilizer is articulated to the torsion spring system (12).

4. The bogie (1, 1*, 1**) according to claim 3, wherein the torsion rod (11) of the roll stabilizer is at least indirectly connected in its two end regions to the torsion spring system (12) via a force fit or a force fit and form fit.

5. The bogie (1, 1*, 1**) according to claim 1, wherein the torsion rod (11) of the roll stabilizer is manufactured at least predominantly from a fiber-reinforced plastic.

6. The bogie (1, 1*, 1**) according to claim 5, wherein the at least one torsion rod (1201, 1202) of each torsion spring system (12), or the frame (3), or the spring lever arms (4), or a combination of the aforementioned components is at least predominantly manufactured from a fiber-reinforced plastic.

7. The bogie (1, 1*, 1**) according to claim 3, wherein, in the two end regions and in the region of half the height of the torsion spring system (12), an insert (13, 13′) is non-rotatably connected to the torsion spring system (12), wherein in the region of half the height of the torsion spring system (12), the insert (13′) is non-rotatably mounted in a fixed bearing (14) arranged in the frame (3), and wherein the respective one insert (13) is non-rotatably connected in one of the two end regions of the torsion spring system (12) to a transmission shaft (10) which in turn is rotatably mounted in a radial bearing (15) arranged in the frame (3) and is connected to the associated spring lever arm (4), and wherein at least the torsion spring system (12), the inserts (13, 13′), the fixed bearing (14), and the transmission shaft (10) are designed as a hollow body such that the torsion rod (11) of the roll stabilizer is arranged continuously in the inner volume thereof, wherein the torsion rod (11) of the roll stabilizer is in each case in its end region non-rotatably connected to the transmission shaft (10) by means of a press connection or toothing so that the roll stabilizer is articulated by means of the transmission shaft (10) to the torsion spring system (12).

8. The bogie (1, 1*, 1**) according to claim 2, wherein the torsion rod (11) of the roll stabilizer is manufactured at least predominantly from a fiber-reinforced plastic.

9. The bogie (1, 1*, 1**) according to claim 8, wherein the at least one torsion rod (1201, 1202) of each torsion spring system (12), or the frame (3), or the spring lever arms (4), or a combination of the aforementioned components is at least predominantly manufactured from a fiber-reinforced plastic.

10. The bogie (1, 1*, 1**) according to claim 3, wherein the torsion rod (11) of the roll stabilizer is manufactured at least predominantly from a fiber-reinforced plastic.

11. The bogie (1, 1*, 1**) according to claim 10, wherein the at least one torsion rod (1201, 1202) of each torsion spring system (12), or the frame (3), or the spring lever arms (4), or a combination of the aforementioned components is at least predominantly manufactured from a fiber-reinforced plastic.

12. The bogie (1, 1*, 1**) according to claim 4, wherein the torsion rod (11) of the roll stabilizer is manufactured at least predominantly from a fiber-reinforced plastic.

13. The bogie (1, 1*, 1**) according to claim 12, wherein the at least one torsion rod (1201, 1202) of each torsion spring system (12), or the frame (3), or the spring lever arms (4), or a combination of the aforementioned components is at least predominantly manufactured from a fiber-reinforced plastic.

14. The bogie (1, 1*, 1**) according to claim 4, wherein, in the two end regions and in the region of half the height of the torsion spring system (12), an insert (13, 13′) is non-rotatably connected to the torsion spring system (12), wherein in the region of half the height of the torsion spring system (12), the insert (13′) is non-rotatably mounted in a fixed bearing (14) arranged in the frame (3), and wherein the respective one insert (13) is non-rotatably connected in one of the two end regions of the torsion spring system (12) to a transmission shaft (10) which in turn is rotatably mounted in a radial bearing (15) arranged in the frame (3) and is connected to the associated spring lever arm (4), and wherein at least the torsion spring system (12), the inserts (13, 13′), the fixed bearing (14), and the transmission shaft (10) are designed as a hollow body such that the torsion rod (11) of the roll stabilizer is arranged continuously in the inner volume thereof, wherein the torsion rod (11) of the roll stabilizer is in each case in its end region non-rotatably connected to the transmission shaft (10) by means of a press connection or toothing so that the roll stabilizer is articulated by means of the transmission shaft (10) to the torsion spring system (12).

15. The bogie (1, 1*, 1**) according to claim 5, wherein, in the two end regions and in the region of half the height of the torsion spring system (12), an insert (13, 13′) is non-rotatably connected to the torsion spring system (12), wherein in the region of half the height of the torsion spring system (12), the insert (13′) is non-rotatably mounted in a fixed bearing (14) arranged in the frame (3), and wherein the respective one insert (13) is non-rotatably connected in one of the two end regions of the torsion spring system (12) to a transmission shaft (10) which in turn is rotatably mounted in a radial bearing (15) arranged in the frame (3) and is connected to the associated spring lever arm (4), and wherein at least the torsion spring system (12), the inserts (13, 13′), the fixed bearing (14), and the transmission shaft (10) are designed as a hollow body such that the torsion rod (11) of the roll stabilizer is arranged continuously in the inner volume thereof, wherein the torsion rod (11) of the roll stabilizer is in each case in its end region non-rotatably connected to the transmission shaft (10) by means of a press connection or toothing so that the roll stabilizer is articulated by means of the transmission shaft (10) to the torsion spring system (12).

16. The bogie (1, 1*, 1**) according to claim 6, wherein, in the two end regions and in the region of half the height of the torsion spring system (12), an insert (13, 13′) is non-rotatably connected to the torsion spring system (12), wherein in the region of half the height of the torsion spring system (12), the insert (13′) is non-rotatably mounted in a fixed bearing (14) arranged in the frame (3), and wherein the respective one insert (13) is non-rotatably connected in one of the two end regions of the torsion spring system (12) to a transmission shaft (10) which in turn is rotatably mounted in a radial bearing (15) arranged in the frame (3) and is connected to the associated spring lever arm (4), and wherein at least the torsion spring system (12), the inserts (13, 13′), the fixed bearing (14), and the transmission shaft (10) are designed as a hollow body such that the torsion rod (11) of the roll stabilizer is arranged continuously in the inner volume thereof, wherein the torsion rod (11) of the roll stabilizer is in each case in its end region non-rotatably connected to the transmission shaft (10) by means of a press connection or toothing so that the roll stabilizer is articulated by means of the transmission shaft (10) to the torsion spring system (12).

17. The bogie (1, 1*, 1**) according to claim 8, wherein, in the two end regions and in the region of half the height of the torsion spring system (12), an insert (13, 13′) is non-rotatably connected to the torsion spring system (12), wherein in the region of half the height of the torsion spring system (12), the insert (13′) is non-rotatably mounted in a fixed bearing (14) arranged in the frame (3), and wherein the respective one insert (13) is non-rotatably connected in one of the two end regions of the torsion spring system (12) to a transmission shaft (10) which in turn is rotatably mounted in a radial bearing (15) arranged in the frame (3) and is connected to the associated spring lever arm (4), and wherein at least the torsion spring system (12), the inserts (13, 13′), the fixed bearing (14), and the transmission shaft (10) are designed as a hollow body such that the torsion rod (11) of the roll stabilizer is arranged continuously in the inner volume thereof, wherein the torsion rod (11) of the roll stabilizer is in each case in its end region non-rotatably connected to the transmission shaft (10) by means of a press connection or toothing so that the roll stabilizer is articulated by means of the transmission shaft (10) to the torsion spring system (12).

18. The bogie (1, 1*, 1**) according to claim 9, wherein, in the two end regions and in the region of half the height of the torsion spring system (12), an insert (13, 13′) is non-rotatably connected to the torsion spring system (12), wherein in the region of half the height of the torsion spring system (12), the insert (13′) is non-rotatably mounted in a fixed bearing (14) arranged in the frame (3), and wherein the respective one insert (13) is non-rotatably connected in one of the two end regions of the torsion spring system (12) to a transmission shaft (10) which in turn is rotatably mounted in a radial bearing (15) arranged in the frame (3) and is connected to the associated spring lever arm (4), and wherein at least the torsion spring system (12), the inserts (13, 13′), the fixed bearing (14), and the transmission shaft (10) are designed as a hollow body such that the torsion rod (11) of the roll stabilizer is arranged continuously in the inner volume thereof, wherein the torsion rod (11) of the roll stabilizer is in each case in its end region non-rotatably connected to the transmission shaft (10) by means of a press connection or toothing so that the roll stabilizer is articulated by means of the transmission shaft (10) to the torsion spring system (12).

19. The bogie (1, 1*, 1**) according to claim 11, wherein, in the two end regions and in the region of half the height of the torsion spring system (12), an insert (13, 13′) is non-rotatably connected to the torsion spring system (12), wherein in the region of half the height of the torsion spring system (12), the insert (13′) is non-rotatably mounted in a fixed bearing (14) arranged in the frame (3), and wherein the respective one insert (13) is non-rotatably connected in one of the two end regions of the torsion spring system (12) to a transmission shaft (10) which in turn is rotatably mounted in a radial bearing (15) arranged in the frame (3) and is connected to the associated spring lever arm (4), and wherein at least the torsion spring system (12), the inserts (13, 13′), the fixed bearing (14), and the transmission shaft (10) are designed as a hollow body such that the torsion rod (11) of the roll stabilizer is arranged continuously in the inner volume thereof, wherein the torsion rod (11) of the roll stabilizer is in each case in its end region non-rotatably connected to the transmission shaft (10) by means of a press connection or toothing so that the roll stabilizer is articulated by means of the transmission shaft (10) to the torsion spring system (12).

20. The bogie (1, 1*, 1**) according to claim 13, wherein, in the two end regions and in the region of half the height of the torsion spring system (12), an insert (13, 13′) is non-rotatably connected to the torsion spring system (12), wherein in the region of half the height of the torsion spring system (12), the insert (13′) is non-rotatably mounted in a fixed bearing (14) arranged in the frame (3), and wherein the respective one insert (13) is non-rotatably connected in one of the two end regions of the torsion spring system (12) to a transmission shaft (10) which in turn is rotatably mounted in a radial bearing (15) arranged in the frame (3) and is connected to the associated spring lever arm (4), and wherein at least the torsion spring system (12), the inserts (13, 13′), the fixed bearing (14), and the transmission shaft (10) are designed as a hollow body such that the torsion rod (11) of the roll stabilizer is arranged continuously in the inner volume thereof, wherein the torsion rod (11) of the roll stabilizer is in each case in its end region non-rotatably connected to the transmission shaft (10) by means of a press connection or toothing so that the roll stabilizer is articulated by means of the transmission shaft (10) to the torsion spring system (12).

Description

IN THE FIGURES

[0027] FIG. 1 shows a plan view of a bogie according to the invention for a rail vehicle,

[0028] FIG. 2 shows a side view in the viewing direction Y of a bogie according to the invention with a roll stabilizer articulated to the car body (not shown),

[0029] FIG. 3 shows a sectional view along the line X-X of a bogie according to the invention with a roll stabilizer articulated to the car body (not shown),

[0030] FIG. 3a shows detail E of FIG. 3,

[0031] FIG. 3b shows detail F of FIG. 3,

[0032] FIG. 4 shows a side view in the viewing direction Y of a bogie according to the invention with a roll stabilizer articulated by the torsion spring system,

[0033] FIG. 5 shows a sectional view along the line X-X of a bogie according to the invention with a roll stabilizer articulated by the torsion spring system,

[0034] FIG. 5a shows detail E* of FIG. 5,

[0035] FIG. 6 shows a side view in the viewing direction Y of a bogie according to the invention with two roll stabilizers, each articulated by a torsion spring system.

[0036] FIG. 6a shows a plan view of a section in the X-Y plane of the bogie according to the invention of FIG. 6.

[0037] FIG. 1 shows the plan view of an exemplary embodiment of a bogie according to the invention for a rail vehicle. The bogie 1, 1*, 1** has two wheelsets 2, each mounted in two axle bearings 21 and having two wheels 202 connected by an axle 201. Each axle bearing 21 is connected in an articulated manner to the frame 3 via an axle guide 22. For the suspension of the wheelsets 2 relative to the frame 3, the bogie 1, 1*, 1** has, per wheelset 2, a torsion spring system which is arranged parallel to the axle 201 of the corresponding wheelset 2 in the frame 3 and is thus not visible in the illustration shown. The same applies to the roll stabilizer arranged in the torsion spring system. The articulation of the roll stabilizer is not shown. On the torsion spring system, spring lever arms 4 are arranged at the end, wherein each spring lever arm 4 acts with its one end region on an axle bearing 21 by means of a damping body, e.g., a rubber pad 41. A pivot pin 5 is arranged on the frame 3 as a connection to the car body (not shown) of the rail vehicle; an elastic connection between the car body and the bogie 1, 1*, 1** is produced for the secondary suspension by air springs 6 arranged on the frame 3.

[0038] Advantageously, the bogie 1, 1*, 1** has a particularly large amount of installation space for further operation-relevant built-in components, such as the motors 7, the transmission 8, and the brakes 9.

[0039] In particular, the frame 3, the spring lever arms 4, the torsion spring systems, and the torsion rod of the roll stabilizer can be manufactured at least predominantly from an FRP.

[0040] FIGS. 2 and 3 show views of a bogie according to the invention analogous to that in FIG. 1, wherein the roll stabilizers are articulated to the car body (not shown).

[0041] FIG. 2 shows the side view of a bogie 1 in the viewing direction Y indicated in FIG. 1. As described above, the bogie 1 has wheelsets 2 mounted in axle bearings 21. Each axle bearing 21 is connected in an articulated manner to the frame 3 via an axle guide 22. One end region of a spring lever arm 4 acts on each axle bearing 21 via a damping body, e.g., a rubber pad 41. The other end region of the spring lever arm 4 is connected to the torsion spring system (not visible) via an, e.g. metallic, transmission shaft 10. In one of the two torsion spring systems of the bogie 1, a roll stabilizer with a torsion rod 11 is arranged, which is articulated at the end via a pendulum support arrangement having a one-sided lever 111 and a substantially vertical pendulum support 112 on opposite sides of the car body (not shown) of the rail vehicle.

[0042] FIG. 3 shows the illustration of a bogie 1 according to the invention with roll stabilizers articulated to the car body (not shown) in a section along the line X-X indicated in FIG. 1, which section corresponds to a longitudinal section along the axis of symmetry of the one of the two torsion spring systems 12 of the bogie 1 in which the torsion rod 11 of the roll stabilizer is arranged, and thus also of the torsion rod 11 of the roll stabilizer. FIG. 3a shows an enlarged view of detail E of FIG. 3. FIG. 3b shows an enlarged view of detail F of FIG. 3.

[0043] FIG. 3 shows the space-saving arrangement of the torsion spring system 12 within the frame 3. In the exemplary embodiment shown, the torsion spring system 12 comprises two torsion rods 1201 and 1202 with the same spring characteristic, which are arranged one behind the other in the axial direction, wherein the longitudinal axes, i.e., the axes with the smallest moment of inertia of the two torsion rods 1201 and 1202, coincide. In the torsion rods 1201 and 1202, an insert 13, 13′, e.g. a metallic one, is arranged in each case at the end, as can be seen more precisely in FIGS. 3a, 3b. In the region, in which the insert 13, 13′ rests, of the torsion rod 1201, 1202, the torsion rod 1201, 1202 is thickened, i.e., the wall thickness is increased, for example by additional fiber layers or an additional binding which surrounds the torsion rod in this region and is preferably made of a metal.

[0044] The mutually facing end regions of the torsion rods 1201 and 1202 comprise a common insert 13′, i.e., the torsion rods 1201 and 1202 of the torsion spring system 12 are connected to one another via a common insert 13′. The insert 13′ is non-rotatably connected to a fixed bearing 14 fastened to the frame 3, as shown in more detail in FIG. 3b. The inserts 13 of the other outer end regions of the two torsion rods 1201 and 1202 are fixedly connected to the transmission shaft 10 which is rotatably mounted in a radial bearing 15 fastened in the frame 3 and is connected to the spring lever arm 4, as FIG. 3a shows by way of example in detail for the torsion rod 1201.

[0045] The torsion rods 1201 and 1202, the inserts 13, the fixed bearing 14, and the transmission shaft 10 of the bogie 1 are designed as substantially cylindrical hollow bodies such that the torsion rod 11 of the roll stabilizer is arranged according to the invention continuously in the inner volume of the mentioned elements, wherein its longitudinal axis substantially coincides with the longitudinal axis of the elements. The torsion rod 11 of the roll stabilizer projects with its two end regions in each case beyond the transmission shaft 10 arranged there, wherein the torsion rod 11 of the roll stabilizer is guided by means of a plain bearing bush 16 through the transmission shaft 10. The torsion rod 11 of the roll stabilizer is thus rotatably mounted in the transmission shaft 10 in both end regions. In the exemplary embodiment shown, the end regions of the torsion rod 11 of the roll stabilizer are thickened, in particular where the torsion rod 11 is in contact with the plain bearing bush 16; however, the end regions may also be designed without thickening. The lever 111, which is connected to the pendulum support 112, which is articulated to the car body (not shown) of the rail vehicle, is arranged on the two regions of the torsion rod 11 of the roll stabilizer that project beyond the respective spring lever arm 4 and are designed as an axial stop.

[0046] FIG. 4 and FIG. 5 show views of a bogie 1* according to the invention analogous to that in FIG. 1, wherein the bogie 1* has exactly one roll stabilizer, which is articulated to one of the two torsion spring systems. This exemplary embodiment represents an alternative to the exemplary embodiment of a bogie 1 shown in FIGS. 2 and 3.

[0047] FIG. 4 shows the side view of a bogie 1* in the viewing direction Y indicated in FIG. 1. In addition to the components already identified in FIG. 2, in contrast to the bogie 1, the bogie 1* does not have a pendulum support arrangement for the articulation of the roll stabilizer 11 to the car body. Instead, the torsion rod 11, arranged in a space-saving manner within the torsion spring system, of the roll stabilizer is non-rotatably connected in regions to the transmission shaft 10 so that the roll stabilizer is articulated to the torsion spring system by means of the transmission shaft 10.

[0048] This is shown in more detail in FIG. 5, the illustration of the bogie 1* according to the invention in a section along the line X-X indicated in FIG. 1, or in FIG. 5a, which shows an enlarged view of detail E* of FIG. 5. In this exemplary embodiment too, the torsion spring system 12 arranged within the frame 3 comprises two torsion rods 1201 and 1202 with the same spring characteristic, which are arranged one behind the other in the axial direction, wherein the longitudinal axes, i.e., the axes with the smallest moment of inertia of the two torsion rods 1201 and 1202, coincide. In the torsion rods 1201 and 1202, an insert 13, 13′ e.g., a metallic one, is arranged in each case at the end. In the region, in which the insert 13, 13′ rests, of the torsion rod 1201, 1202, the torsion rod 1201, 1202 is thickened, i.e., the wall thickness is increased, for example by additional fiber layers or bindings. In the region of the mutually facing end regions of the torsion rods 1201 and 1202, the embodiment of the bogie 1* corresponds to the embodiment of the bogie 1 shown in FIG. 3b.

[0049] Likewise as in the bogie 1, in the bogie 1* too, the inserts 13 of the other outer end regions of the two torsion rods 1201 and 1202 are fixedly connected to the transmission shaft 10, which is rotatably mounted in a radial bearing 15 fastened in the frame 3 and is connected to the spring lever arm 4, as FIG. 5a shows by way of example in detail for the torsion rod 1201.

[0050] The torsion rods 1201 and 1202, the inserts 13, the fixed bearing 14, and the transmission shaft 10 of the bogie 1* are designed as substantially cylindrical hollow bodies such that the torsion rod 11 of the roll stabilizer is arranged according to the invention continuously in the inner volume of the mentioned elements, wherein its longitudinal axis substantially coincides with the longitudinal axis of the elements, and wherein the torsion rod 11 does not project beyond the transmission shaft 10. The two end regions, which are thickened in the exemplary embodiment shown, of the torsion rod 11 of the roll stabilizer each have an axially outer region which faces the spring lever arm 4 and is non-rotatably connected in a force-fitting or a force-fitting and form-fitting manner, e.g., via a toothing 17, to the transmission shaft 10. Further inward, the toothing 17 is adjoined in the axial direction by a non-toothed region of the torsion rod 11, which is guided, for example by means of a plain bearing bush 16, through the transmission shaft 10. Both the torsion spring system 12 and the torsion rod 11 of the roll stabilizer are accordingly in each case non-rotatably connected at the end to the respective transmission shaft 10 so that the roll stabilizer is articulated to the torsion spring system 12 by means of the transmission shaft 10.

[0051] FIG. 6 shows the side view of a bogie 1** according to the invention in the viewing direction Y indicated in FIG. 1, wherein the bogie 1** only differs from the bogie 1* in that the torsion rod 11 of a roll stabilizer is arranged in each of its two torsion spring systems (not visible), i.e., it has two roll stabilizers which are each articulated to a torsion spring system by means of a transmission shaft 10.

[0052] FIG. 6a shows the plan view of a section in the X-Y plane (shown in FIG. 1) of the bogie 1** according to the invention with the pivot pin 5. A torsion rod 11 of a roll stabilizer is in each case arranged in each torsion spring system 12 respectively assigned to a wheelset 2. Each torsion spring system 12 is in each case connected at the end via an insert 13 to an associated, rotatably mounted transmission shaft 10. The torsion rod 11 of the roll stabilizer is non-rotatably connected in a force-fitting or force-fitting and form-fitting manner to the two transmission shafts 10 arranged at the ends and, on its two end regions, is articulated to the torsion spring system 12 by means of said transmission shafts. The bogie 1** advantageously has a particularly large amount of installation space for the arrangement of components, such as the motors 7, the transmissions 8, and the brakes 9.

REFERENCE SIGNS

[0053] 1, 1*, 1** Bogie [0054] 2 Wheelset [0055] 201 Axle [0056] 202 Wheel [0057] 21 Axle bearing [0058] 22 Axle guide [0059] 3 Frame [0060] 4 Spring lever arm [0061] 41 Rubber pad [0062] 5 Pivot pin [0063] 6 Air spring [0064] 7 Motor [0065] 8 Transmission [0066] 9 Brake [0067] 10 Transmission shaft [0068] 11 Torsion rod of the roll stabilizer [0069] 111 Lever [0070] 112 Pendulum support [0071] 12 Torsion spring system [0072] 1201 Torsion rod of the torsion spring system [0073] 1202 Torsion rod of the torsion spring system [0074] 13, 13′ Insert [0075] 14 Fixed bearing [0076] 15 Radial bearing [0077] 16 Plain bearing bush [0078] 17 Toothing