Wheelset Guide For A Vehicle

Abstract

A wheelset guide for a rail vehicle, which has a bogie frame. Includes at least one longitudinal support, and includes a wheelset bearing for a wheelset of the rail vehicle, wherein the wheelset bearing is connected to the bogie frame and includes a rocker that is pivotably attached to the bogie frame via an elastic rocker bearing, and a pin guided by the rocker bearing, where the bogie frame forms a receptacle for the rocker bearing, which is configured such that the force is introduced into the bogie frame via the rocker hearing itself, and the rocker bearing is positioned in the receptacle in order to improve the strength and stability of the attachment of the rocker to the bogie frame or to the longitudinal support with an open profile.

Claims

1.-16. (canceled)

17. A wheelset guide for a rail vehicle, comprising; a chassis frame of a bogie and having at least one longitudinal support; and a wheelset bearing for a wheelset of the rail vehicle and having a rocker, said wheelset bearing being connected to the chassis frame in a sprung manner via a spring element; wherein the rocker of the wheelset bearing is pivotably attached to the chassis frame via an elastic rocker bearing and a pin which passes through said elastic rocker hearing; wherein the chassis frame forms a receptacle for the rocker hearing, said receptacle being configured such that a transfer of force into the chassis frame occurs via the rocker bearing itself and such that the rocker bearing is positioned in the receptacle.

18. The wheelset guide as claimed in claim 17, wherein the receptacle at least partly surrounds the rocker bearing.

19. The wheelset guide as claimed in claim 17, wherein the receptacle is configured as a cylindrical opening in the at least one longitudinal support.

20. The wheelset guide as claimed in claim 18, wherein the receptacle is configured as a cylindrical opening in the at least one longitudinal support.

21. The wheelset guide as claimed in claim 19, wherein the at least one longitudinal support has an I-shaped profile.

22. The wheelset guide as claimed in claim 19, wherein a transfer of force into the at least one longitudinal support occurs via at least one contact section of a contact surface between the elastic rocker bearing and the receptacle.

23. The wheelset guide as claimed In claim 21, wherein a transfer of force into the at least one longitudinal support occurs via at least one contact section of a contact surface between the elastic rocker bearing and the receptacle.

24. The wheelset guide as claimed in claim 17, wherein the elastic rocker bearing comprises a rubber-metal bush.

25. The wheelset guide as claimed in claim 17, wherein a flow of force from the wheelset bearing into the chassis frame runs via the rocker of the wheel set bearing, the pin, the elastic rocker bearing and the receptacle.

26. The wheelset guide as claimed in claim 25, wherein the pin has a central section which is held in the elastic rocker bearing and at least one end section for attachment to the rocker; wherein a transfer of force from the rocker into the pin occurs via the least one end section of the pin; and wherein a transfer of force from the pin into the elastic rocker bearing occurs via the central section of the pin.

27. The wheelset guide as claimed in claim 27, wherein the rocker includes a forked section for receiving two end sections of the pin.

28. The wheelset guide as claimed in claim 27, wherein the end sections of the pin are connected to the forked section of the rocker in a torsionally rigid manner.

29. The wheelset guide as claimed in claim 27, wherein the forked end section of the rocker laterally surrounds the chassis frame at least partly.

30. The wheelset guide as claimed in claim 28, wherein the forked end section of the rocker laterally surrounds the longitudinal support at least partly.

31. The wheelset guide as claimed in claim 17, wherein the elastic rocker bearing is pressed into the receptacle.

32. The wheelset guide as claimed in claim 17, wherein the elastic rocker hearing is glued into the receptacle.

33. The wheelset guide as claimed in claim 17, wherein the pin has a longitudinal axis and the wheelset hearing has a wheelset axis, and wherein the longitudinal axis and the wheelset axis are arranged in parallel.

34. The wheelset guide as claimed in claim 17, wherein the spring element is a primary spring of the rail vehicle.

35. The wheelset guide as claimed in claim 17, wherein the wheelset is mounted in the wheelset bearing.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to further explain the invention, reference is made in the following part of the description to the figures, from which further advantageous embodiments, details and developments of the invention can be derived. The figures are provided as examples and are intended to illustrate the character of the invention, but do not in any way restrict or even conclusively depict the character of the invention in which:

[0027] FIG. 1 shows an axonometric view of a wheelset guide in accordance with the prior art;

[0028] FIG. 2 shows a schematic sectional view of a rocker bearing in accordance with the prior art;

[0029] FIG. 3 shows an axonometric view of a wheelset guide in accordance with the invention;

[0030] FIG. 4 shows a schematic sectional view of a rocker bearing in accordance with the invention;

[0031] FIG. 5 shows a view from below of a wheelset guide in accordance with the invention; and

[0032] FIG. 6 shows a detailed sectional view of a rocker bearing in accordance with the invention in an axonomatric view.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

[0033] FIG. 1 shows a chassis frame 1, specifically a longitudinal support 2 of a chassis frame 1 having a box-type profile, with a wheelset guide in the structural format of a rocker guide according to the prior art. Here, the wheelset guide comprises a wheelset bearing 3, which is supported against the longitudinal support 2 via spring element 5 and carries a wheelset 4, where only one wheel of the wheelset 4 is depicted in this figure. The wheelset bearing 3 is also connected to a rocker 6, where at that end opposite to the wheelset bearing 3, the rocker 6 has an eye in which an elastic rocker bearing 7 Is arranged. A pin 8 passes through the rocker bearing 7 and is connected to a receptacle 9, which is arranged on the longitudinal support 2 and takes the form of two brackets that are arranged in front of and behind the eye relative to a longitudinal axis 14 of the pin 8 (see FIGS. 4 and 5).

[0034] The section through the elastic rocker bearing 7 and the longitudinal support 2, as illustrated in FIG. 2, shows more clearly that the rocker bearing 7 is positioned in the eye of the rocker 6 and the transfer of force into the longitudinal support 2 having a box-profile cross-section occurs via the pin 8 and the receptacle 9 that is connected to the pin 8 and takes the form of two brackets. The force is therefore transferred largely into the lateral regions of the longitudinal support 2, where it is received by the side walls of the longitudinal support 2.

[0035] FIG. 3 shows a wheelset guide in accordance with the invention. The fundamental structure corresponds largely to the prior art. The wheelset bearing 3 is connected on one side to the chassis frame 1 or longitudinal support 2 in a sprung manner by a spring element 5, and is attached on the other side to the longitudinal support 2 via the rocker 6 and the elastic rocker bearing 7, In this case, the spring element 5 Is the primary spring of the rail vehicle. It can likewise be seen that a wheelset 4 is mounted in the wheelset bearing 3, where the wheelset 4 comprises two wheels and an axle that connects the wheels in a rigid manner, where only one of the wheels is visible.

[0036] Unlike the prior art, the longitudinal support 2 forms a receptacle 9 in the form of a preferably cylindrical opening, where the rocker bearing 7 is positioned in the receptacle 9, Here, the receptacle 9 Is formed by a tubular element that is integrated into the longitudinal support 2. The opening is formed by the inner diameter of the tubular element, in this case. The connection of the rocker bearing 7 to the receptacle 9 is made by either pressing or gluing the rocker bearing 7 into the receptacle 9. The receptacle 9 completely surrounds the rocker bearing 7 in this case. As a result of the arrangement of the rocker bearing 7 in the receptacle 9, the transfer of force into the chassis frame 1 occurs through the rocker bearing 7 itself.

[0037] The pin 8 is passed through the rocker bearing 7 and is connected to the rocker 6 as described in detail below. In this way, the flow of force runs from the wheelset bearing 3 via the rocker 6, the pin 8, the rocker bearing and the receptacle 9 into the longitudinal support 2.

[0038] A schematic sectional view through the chassis frame 1 or the longitudinal support 2 is again illustrated in FIG. This clearly shows both the I-shaped profile of the longitudinal support 2 and the receptacle 9 that is formed by the longitudinal support 2 and in which the rocker bearing 7 is arranged. The lower flange of the longitudinal support 2 in this schematic diagram coincides with the boundary of the receptacle 9, this being an exceptional case. The lower flange is not usually interrupted in the region of the receptacle 9, but is diverted tangentially past the receptacle 9 (see FIG. 6). FIG. 4 also shows the pin 8 has two end sections 12, these being arranged at the end of the pin 8 in each case. These end sections 12 are connected to the rocker 6, more precisely to a forked section 13 of the rocker 6, via which the transfer of force into the pin 8 takes place. The pin 8 also has a central section 11, which is held in the rocker bearing 7 and is arranged between the two end sections 12. The transfer of force from the pin 8 into the rocker bearing 7 occurs via this central section 11.

[0039] As illustrated, the rocker bearing 7 in this case can consist of an elastomeric layer 19 that is vulcanized or pressed onto the central section 11 of the pin 8. On its outer side, this elastomeric layer 19 is pressed into or vulcanized into a sleeve 20, where the sleeve 20 is mounted in the receptacle 9. Alternatively, a rubber-metal bush can be used as a rocker bearing 7, where the sleeve 20 corresponds to an outer sleeve and the elastomeric layer 19 is vulcanized between an inner sleeve and the outer sleeve, and where the inner sleeve is pressed onto the pin 8.

[0040] A contact surface is formed between the rocker bearing 7 or the sleeve 20 and the receptacle 9, where the contact surface corresponds in this case to the inner surface of the hole of the receptacle 9 which comprises a cylindrical opening. In this case, a contact section 10 corresponds to the contact surface itself. A different part of the rocker bearing 7 is subjected to a greater load depending on the direction of the force or vibration that is transferred.

[0041] FIG. 5 shows a view of a wheelset guide in accordance with the invention from below, i.e., from the direction of a rail. In particular, FIG. 5 shows the forked section 13 of the rocker 6, which forked section 13 is arranged at the opposite end of the rocker 6 to the wheelset bearing 3. This forked section 13 comprises two contact elements 16, which are arranged in parallel to each other and are separated from each other in the direction of the longitudinal axis 14 of the pin 8, such that the receptacle 9 of the longitudinal support 2 and the rocker bearing 7 that is mounted therein can be accommodated. In this way, the forked section 13 or the contact elements 16 surround the longitudinal support 2 laterally in the region of the receptacle 9, Here, the pin b and the wheelset bearing 3 are oriented such that the longitudinal axis 14 of the pin 8 and the wheelset axis 15 run parallel to each other.

[0042] FIG. 6 shows a sectional view through a rocker bearing 7 as per the exemplary embodiment explained in FIGS. 3 and 5. The end sections 12 of the pin 8 project beyond the rocker bearing 7 along the longitudinal axis 14 on both sides, and are held by the contact elements 16 of the forked section 13 of the rocker 6. For this purpose, the contact elements 16 have a receiver in the form of an opening, in which each end section 12 of the pin 8 is held. In order to create a torsionally rigid connection between the pin 8 and the forked section 13, the end sections 12 of the pin 8 have a cross-section in the form of a circular segment. The opening at the contact elements 16 is configured in a semicircular manner and Is limited on the opposite side by a clamping element 17 (see also FIG. 3). A clamping section 18 of the clamping element 17 mates with the flat surface of the end section 12, where the flat surface results from the cross-section in the form of a circular segment. The clamping element 17 is fixed to the contact element 16 using corresponding means, via two screw connections in the present exemplary embodiment.

[0043] It can also be seen from this figure that the lower flange of the longitudinal support 2 in the region of the receptacle 9 is routed directly past the receptacle 9, flowing into and out of the region tangentially. Therefore, the wall thickness of the receptacle 9 (or the receptacle 9 plus lower flange) in the region of the lower flange of the longitudinal support 2 is significantly greater than the wail thickness of the receptacle 9 on the opposite side of the pin 8. The wall thickness of the receptacle 9 (or the receptacle 9 plus lower flange) in the region of the lower flange of the longitudinal support 2 is also greater than the thickness of the upper flange of the longitudinal support 2.

[0044] Thus, while there have been shown, described and pointed out fundamental novel features of the invention as applied to a preferred embodiment thereof, it will be understood that various omissions and substitutions and changes In the form and details of the devices illustrated, and in their operation, may be made by those skilled in the art without departing from the spirit of the invention. For example, it is expressly intended that all. combinations of those elements which perform substantially the same function in substantially the same way to achieve the same results are within the scope of the invention. Moreover, it should be recognized that structures and/or elements shown and/or described in connection with any disclosed form or embodiment of the invention may be incorporated in any other disclosed or described or suggested form, or embodiment as a general matter of design choice. It is the intention, therefore, to be limited only as indicated by the scope of the claims appended hereto.