Chassis for a rail vehicle

Abstract

A chassis for a rail vehicle, in particular with inboard wheel sets, with at least one transmission, at least one transversely mounted drive motor and at least one chassis frame, wherein the chassis frame includes at least one crossmember and at least a first longitudinal carrier and a second longitudinal carrier, where at least a first elastic bearing, a second elastic bearing and a third elastic bearing are arranged between the drive motor and the chassis frame, and where in each case one of the elastic bearings is arranged on at least one of the longitudinal carriers in order to provide advantageous construction conditions.

Claims

1. A chassis for a rail vehicle including inboard wheel sets, comprising: at least one transmission; at least one transversely mounted drive motor; at least one chassis frame comprising at least one crossmember, at least one first longitudinal carrier and a second longitudinal carrier; at least one first elastic bearing; a second elastic bearing; a third elastic bearing, the at least one first elastic bearing, the second elastic bearing and the third elastic bearing each being arranged between the drive motor and the chassis frame; and a first primary spring cup and a second primary spring cup arranged at each end of the at least one first longitudinal carrier; wherein the third elastic bearing is arranged between the first primary spring cup and the second primary spring cup; and wherein one elastic bearing of the first and second elastic bearings is arranged on at least one longitudinal carrier of the first and second longitudinal carriers.

2. The chassis as claimed in claim 1, wherein the at least one first elastic bearing and the second elastic bearing are arranged between the drive motor and the crossmember and the third elastic bearing is arranged between the drive motor and the at least one first longitudinal carrier.

3. The chassis as claimed in claim 2, wherein the crossmember has open profiles.

4. The chassis as claimed in claim 2, wherein drilled holes provided in the beams of the open profiles for the connection of the drive motor to the chassis frame are arranged such that vertical forces introduced into the open profiles extend proximal to the shear centers of the open profiles.

5. The chassis as claimed in claim 1, further comprising: a respective first primary spring cup arranged at each respective end of the at least one first longitudinal carrier; wherein the third elastic bearing is arranged approximately adjacent to the respective first primary spring cup.

6. The chassis as claimed in claim 1, wherein the at least one first elastic bearing and the second elastic bearing are arranged between the drive motor and the crossmember and the third elastic bearing is arranged between the drive motor and the second longitudinal carrier.

7. The chassis as claimed in claim 6, wherein the crossmember has open profiles.

8. The chassis as claimed in claim 6, wherein drilled holes provided in the beams of the open profiles for the connection of the drive motor to the chassis frame are arranged such that vertical forces introduced into the open profiles extend proximal to the shear centers of the open profiles.

9. The chassis as claimed in claim 6, further comprising: a third primary spring cup and a fourth primary spring cup arranged at each end of the second longitudinal carrier; wherein the third elastic bearing is arranged between the third primary spring cup and the fourth primary spring cup.

10. The chassis as claimed in claim 6, further comprising: a respective third primary spring cup arranged at each respective end of the second longitudinal carrier; wherein the third elastic bearing is arranged approximately adjacent to the respective third primary spring cup.

11. The chassis as claimed in claim 1, wherein the at least one first elastic bearing is arranged between the drive motor and the crossmember, the second elastic bearing is arranged between the drive motor and the at least one first longitudinal carrier and the third elastic bearing is arranged between the drive motor and the second longitudinal carrier.

12. The chassis as claimed in claim 11, wherein the crossmember has open profiles.

13. The chassis as claimed in claim 11, wherein drilled holes provided in the beams of the open profiles for the connection of the drive motor to the chassis frame are arranged such that vertical forces introduced into the open profiles extend proximal to the shear centers of the open profiles.

14. The chassis as claimed in 11, further comprising: a respective first primary spring cup arranged at each respective end of the at least one first longitudinal carrier; and a respective third primary spring cup arranged at each respective end of the second longitudinal carrier; wherein the second elastic bearing is arranged approximately adjacent to the respective first primary spring cup; and wherein the third elastic bearing is arranged approximately adjacent to the respective third primary spring cup.

15. The chassis as claimed in claim 1, wherein the first attachment module is connected to the transmission in a releasable manner.

16. The chassis as claimed in claim 1, wherein the crossmember has open profiles.

17. The chassis as claimed in claim 16, wherein drilled holes provided in the beams of the open profiles for the connection of the drive motor to the chassis frame are arranged such that vertical forces introduced into the open profiles extend proximal to the shear centers of the open profiles.

18. The chassis as claimed in claim 1, wherein drilled holes provided in the beams of the open profiles for the connection of the drive motor to the chassis frame are arranged such that vertical forces introduced into the open profiles extend proximal to the shear centers of the open profiles.

19. The chassis as claimed in claim 1, further comprising: a third primary spring cup and a fourth primary spring cup arranged at each end of the second longitudinal carrier; wherein the third elastic bearing is arranged between the third primary spring cup and the fourth primary spring cup.

20. The chassis as claimed in claim 1, further comprising: a respective first primary spring cup arranged at each respective end of the at least one first longitudinal carrier; wherein the third elastic bearing is arranged approximately adjacent to the respective first primary spring cup.

21. The chassis as claimed in claim 1, further comprising: a respective third primary spring cup arranged at each respective end of the second longitudinal carrier; wherein the third elastic bearing is arranged approximately adjacent to the respective third primary spring cup.

22. The chassis as claimed in 1, further comprising: a respective first primary spring cup arranged at each respective end of the at least one first longitudinal carrier; and a respective third primary spring cup arranged at each respective end of the second longitudinal carrier; wherein the second elastic bearing is arranged approximately adjacent to the respective first primary spring cup; and wherein the third elastic bearing is arranged approximately adjacent to the respective third primary spring cup.

23. The chassis as claimed in claim 1, wherein the first elastic bearing, the second elastic bearing and the third elastic bearing are arranged to form corner points of a triangle in a horizontal plane, and wherein the drive motor is arranged such that a horizontal center of gravity of the drive motor is located within the triangle.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention is explained in greater detail below on the basis of exemplary embodiments, in which:

(2) FIG. 1 shows a top view of a side piece of a first, exemplary embodiment of an inventive chassis with inboard wheel sets, a drive motor and a transmission, with a first primary spring cup and a second primary spring cup, where the drive motor is connected to a crossmember via a first attachment module and to a first longitudinal carrier via a second attachment module;

(3) FIG. 2 shows a top view of a side piece of a second, exemplary embodiment of an inventive chassis with inboard wheel sets, a drive motor and a transmission, with a first primary spring cup and a second primary spring cup, where the drive motor is connected to a crossmember via a first attachment module and to a second longitudinal carrier via a second attachment module;

(4) FIG. 3 shows a top view on a third, exemplary embodiment of an inventive chassis, where a drive motor is connected to a first longitudinal carrier, a second longitudinal carrier and a crossmember;

(5) FIG. 4 shows a top view of a fourth, exemplary embodiment of an inventive chassis, where a drive motor is connected to a first longitudinal carrier, a second longitudinal carrier and a crossmember, and an attachment module is arranged between the drive motor and the first longitudinal carrier and the second longitudinal carrier;

(6) FIG. 5 shows a detailed representation of a sectional view through a first longitudinal carrier, where a third elastic bearing is shown at the bottom right arranged in a beam of the first longitudinal carrier, and a first elastic bearing is shown at the top left arranged in a crossmember;

(7) FIG. 6 shows a detailed representation of a sectional view through a crossmember, where a first elastic bearing is arranged in a beam of an open profile of the crossmember;

(8) FIG. 7 shows a detailed representation of a top view of a side piece of a fifth, exemplary embodiment of an inventive chassis with inboard wheel sets, a drive motor and a transmission, with a first primary spring cup, where the drive motor is connected to a crossmember via a first attachment module and to a first longitudinal carrier via a second attachment module; and

(9) FIG. 8 shows a top view of a side piece of a sixth, exemplary embodiment of an inventive chassis with inboard wheel sets, a drive motor and a transmission, with a first primary spring cup and a second primary spring cup, where a first attachment module connects the drive motor to a crossmember and the transmission and a second attachment module connects the drive motor to a first longitudinal carrier.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

(10) An extract from a first, exemplary embodiment of an inventive chassis shown in top view in FIG. 1, comprises a chassis frame 1, a transversely mounted drive motor 2, a transmission 3, a crossmember 4, a first longitudinal carrier 5, a second longitudinal carrier 6, and a first primary spring cup 7, a second primary spring cup 8, a third primary spring cup 9 and a fourth primary spring cup 10. In an advantageous embodiment, the crossmember 4 is manufactured from open profiles. The first longitudinal carrier 5 and the second longitudinal carrier 6 are, for example, welded to the crossmember 4.

(11) The drive motor 2 is connected to the crossmember 4 via a first attachment module 11, upon which are arranged a first elastic bearing 13 and a second elastic bearing 14.

(12) The drive motor 2 is connected to the first longitudinal carrier 5 via a second attachment module 12 and third elastic bearing 15 arranged thereon. A particularly advantageous three-point suspension thereby results, and no introduction of torques stemming from the drive motor 2 into the chassis frame 1 occurs. Consequently, open profiles can be used for the crossmember 4. The warp stiffness of the chassis frame 1 is hereby reduced, and along with the primary suspension, the chassis frame 1 itself contributes to the smoothing-out of track twists. A weight advantage by comparison with closed profiles can further be achieved through the use of open profiles.

(13) The three-point suspension further leads to a separate mounting of the drive motor 2 and of the transmission 3 in the chassis, by which the proportion of the weight force of the drive motor 2 introduced into the transmission 3 and thus unsprung masses of the chassis decrease.

(14) The advantageous use of the first attachment module 11 and the second attachment module 12 has the result that with the use of uniform interfaces on the chassis frame 1, different drive motors 2, of which exemplary embodiments are represented in FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 7 and FIG. 8, can be employed.

(15) The first elastic bearing 13 and the second elastic bearing 14 are arranged at the ends of the first attachment module 11. The drive motor 2 is connected to the first attachment module 11 in the area between the first elastic bearing 13 and the second elastic bearing 14.

(16) The longitudinal axes of the first elastic bearing 13 and of the second elastic bearing 14 run horizontally and in the longitudinal direction of the chassis.

(17) The first elastic bearing 13 and the second elastic bearing 14 are inserted in drilled holes arranged on the crossmember 4. An exemplary embodiment of a first drilled hole 16 is shown in FIG. 6.

(18) The first elastic bearing 13 and the second elastic bearing 14 are braced to the first attachment module 11 and the crossmember 4 via a first screw connection 18 and a second screw connection 19, whose longitudinal axes extend coaxially with the longitudinal axes of the first elastic bearing 13 and the second elastic bearing 14. They are, for example, formed as rubber-metal elements of known structural form, and enable a relative movement between the first attachment module 11 and the crossmember 4 in a horizontal and in a vertical direction.

(19) In an advantageous embodiment, all connections between the first attachment module 11, the drive motor 2, the first elastic bearing 13 and the second elastic bearing 14 are force-fitted and releasable, by which rapid mountability and demountability of the drive motor 2 and of the first attachment modules 11 result.

(20) The second attachment module 12 is arranged between the drive motor 2 and the first longitudinal carrier 5, where one end of the second attachment modules 12 is connected to the first longitudinal carrier 5 and the other end of the second attachment modules 12 is connected to the drive motor 2.

(21) In an exemplary manner, the third elastic bearing 15 is formed as an elastic sleeve of known structural form, is arranged between the second attachment module 12 and the first longitudinal carrier 5, and enables a relative movement between the second attachment module 12 and the first longitudinal carrier 5 in a horizontal and vertical direction. The longitudinal axis of the third elastic bearings 15 extends horizontally and in the transverse direction of the chassis.

(22) The third elastic bearing 15 is inserted into a second drilled hole 17 arranged on the first longitudinal carrier 5, and braced with the first longitudinal carrier 5 via a first pin 20. The longitudinal axis of the first pins 20 extends coaxially to the longitudinal axis of the third elastic bearing 15. An exemplary embodiment of the second drilled hole 17 is shown in FIG. 5.

(23) The second drilled hole 17 for accommodation of the third elastic bearing 15 is arranged between the first primary spring cup 7 and the second primary spring cup 8. As a result of this characteristic, the torque load on the first longitudinal carrier 5 decreases.

(24) All connections between the second attachment module 12, the drive motor 2 and the third elastic bearing 15 are force-fitted and releasable, by which rapid mountability and demountability of the drive motor 2 and of the second attachment modules 12 result.

(25) In contrast to FIG. 1, FIG. 2 shows a second, exemplary embodiment, in which a second attachment module 12 is connected to a drive motor 2 and via a third elastic bearing 15 to a second longitudinal carrier 6. Otherwise, the principle shown in FIG. 2 corresponds to the embodiment represented in FIG. 1.

(26) FIG. 3 shows the top view of a third, exemplary embodiment of an inventive chassis with a chassis frame 1, in which a first elastic bearing 13 is arranged between a drive motor 2 and a crossmember 4, a second elastic bearing 14 is arranged between the drive motor 2 and a first longitudinal carrier 5 and a third elastic bearing 15 is arranged between the drive motor 2 and a second longitudinal carrier 6. The longitudinal axis of the first elastic bearings 13 extends horizontally and in the longitudinal direction of the chassis. The longitudinal axes of the second elastic bearing 14 and of the third elastic bearing 15 extend horizontally and in the transverse direction of the chassis. The first elastic bearing 13 is, for example, formed as a rubber-metal element, and braced with the crossmember 4 via a first screw connection 18. The second elastic bearing 14 and the third elastic bearing 15 are, for example, formed as elastic sleeves.

(27) The second elastic bearing 14 is connected to the first longitudinal carrier 5 between a first primary spring cup 7 and a second primary spring cup 8 via a first pin 20. The third elastic bearing 15 is arranged on the second longitudinal carrier 6 between a third primary spring cup 9 and a fourth primary spring cup 10 via a second pin 21.

(28) In this embodiment, a first attachment module 11 and a second attachment module 12, as shown in FIG. 1 and FIG. 2, are dispensed with. The drive motor 2 is connected directly to the chassis frame 1 via the first elastic bearing 13, the second elastic bearing 14 and the third elastic bearing 15.

(29) Otherwise, the principle shown in FIG. 3 corresponds to the embodiments represented in FIG. 1 and FIG. 2.

(30) FIG. 4 shows the top view of a fourth, exemplary embodiment of an inventive chassis with a chassis frame 1, in which a first elastic bearing 13 is arranged between a drive motor 2 and a crossmember 4, a second elastic bearing 14 is arranged between the drive motor 2 and a first longitudinal carrier 5 and a third elastic bearing 15 is arranged between the drive motor 2 and a second longitudinal carrier 6.

(31) In contrast to the embodiment shown in FIG. 3, a second attachment module 12 is provided between the drive motor 2, the second elastic bearing 14 and the third elastic bearing 15. The second elastic bearing 14 and the third elastic bearing 15 are arranged at the ends of the second attachment module 12. The drive motor 2 is connected to the second attachment module 12 between the second elastic bearing 14 and the third elastic bearing 15.

(32) Otherwise, the principle shown in FIG. 4 corresponds to the embodiments represented in FIG. 1, FIG. 2 and FIG. 3.

(33) FIG. 5 shows a detailed representation of a sectional view through a first longitudinal carrier 5. A portion of crossmember 4 is additionally shown.

(34) A third elastic bearing 15 with a first pin 20 is inserted into a second drilled hole 17 arranged in a beam of the first longitudinal carrier 5.

(35) The crossmember 4 has a first drilled hole 16, in which is arranged a first elastic bearing 13 with a first screw connection 18.

(36) FIG. 6 shows a detailed representation of a section through a crossmember 4. A portion of a first longitudinal carrier 5 is additionally shown.

(37) In a beam of an open profile of the crossmember 4, a first elastic bearing 13 with a first screw connection 18 is arranged in a first drilled hole 16.

(38) FIG. 7 shows a detailed representation of a top view of a fifth, exemplary embodiment of an inventive chassis. A drive motor 2 is connected via a second attachment module 12 and a third elastic bearing 15 to a first longitudinal carrier 5, comprising at its end a first primary spring cup 7. The third elastic bearing 15 is arranged approximately adjacent to the first primary spring cup 7. A reduction in the torque load on the first longitudinal carrier 5 is thereby achieved.

(39) With the exception of the embodiment of the primary suspension, the principle shown in FIG. 7 corresponds to the embodiment represented in FIG. 1.

(40) In contrast to FIG. 1, FIG. 8 shows a sixth, exemplary embodiment of an inventive chassis, in which a first attachment module 11, in addition to a connection to a drive motor 2, also has a connection to a transmission 3.

(41) The advantage thereby results that the first attachment module 11, alongside its function of linking the drive motor 2 to a chassis frame 1, also functions as a torque support of the transmission 3, and it is thus possible to dispense with additional components.

(42) Otherwise, the principle shown in FIG. 8 corresponds to the embodiment represented in FIG. 1.