CN114641420A

CN114641420A - Articulated connection for a vehicle body

Info

Publication number: CN114641420A
Application number: CN202180006183.6A
Authority: CN
Inventors: M·容维尔特; D·蒂尔博格
Original assignee: Schaeffler Technologies AG and Co KG
Current assignee: Schaeffler Technologies AG and Co KG
Priority date: 2020-01-17
Filing date: 2021-01-08
Publication date: 2022-06-17
Also published as: DE102020131145A1; JP2023501582A; WO2021143975A1; JP7419524B2; EP4090572A1

Abstract

A hinge bearing arrangement (1) for the articulated connection of a railway vehicle carriage, comprising two hinge bearings (13, 14) arranged concentrically and alternately, i.e. a main bearing (13) as an outer bearing and a drop-off prevention bearing (14) as an inner bearing, wherein the main bearing (13) comprises an outer convex bearing part (15) connected with a load-bearing connection part (2) and an outer concave bearing part (16) connected with a semi-trailer connection part (3), and wherein the drop-off prevention bearing (14) comprises: an inner male bearing piece (32) fixedly connected with the semi-mounted connecting piece (3) via a bolt (30); and an inner concave bearing element (34) fixedly connected to the load-bearing connecting element (2). The outer convex bearing element (15) has a spherically curved sliding surface (17) and is designed as a one-piece lower housing element (15) of the main bearing (13), which is directly connected to the load-bearing connecting element (2) by means of a first screw connection. The outer, recessed bearing element (16) has a further sliding surface (18) and is designed as a one-piece upper housing element (15) of the main bearing (13), which is directly connected to the semi-mounted connection element (3) by means of a second screw connection and furthermore comprises a bolt (30).

Description

Articulated connection for a vehicle body

Technical Field

The invention relates to an articulated bearing arrangement for the articulated connection of the carriages of a rail vehicle, designed according to the preamble of claim 1.

Background

Such an articulated bearing arrangement is known from EP 0559635B 1. The articulating bearing arrangement connects the load bearing base member with the semi-hanging base member, wherein each base member, i.e., connecting member, comprises a plurality of plates. The upper plate is in each case fixedly connected to the lower bearing plate via a bracket, the bearing plates of the base part being arranged at the same height. The corresponding applies to the upper plate.

The two bottom parts of the hinge bearing arrangement according to EP 0559635B 1 belong to the carriages of the rail vehicle which follow one another. The semi-trailer base part is coupled to the load-bearing base part by means of two spherical, mutually concentric hinges. In the bearing plate of the bearing base part there is a circular opening into which the cylindrical housing is welded. The housing carries an annular convex spherical cap which is part of one of the two spherical hinges, the outer hinge. The associated female part of the same hinge is inserted into an annular housing which is welded into the circular opening of the extension arm of the semi-mounted base part. The downwardly directed pin, to which the male part of the second, inner spherical hinge is fastened, is welded into the horizontal bottom surface of the mentioned annular housing. The inner ball joint is closed by a cover plate which is inserted into a central opening of a cylindrical housing connected to the load-bearing base part.

Another articulated connection of the car is disclosed in EP 1925527B 1. In this case, the joint is designed as a radial joint bearing having an inner ring with a convexly curved spherical bearing surface and an outer ring with a concavely curved spherical bearing surface. The contact sections of the bearing surfaces of the inner ring and of the outer ring are different from one another in the direction of the vertical bearing axis starting from the center of the inner ring. The outer ring may be an expanded bearing ring.

DE 102005056983 a1 describes a method for extending the service life of an articulated bearing, which performs pivoting and tilting movements with small amplitudes under large unilateral loads. In the context of the method, a wear zone with a limited position is determined with the aid of a sensor device when the bearing is installed. Subsequently, the bearing is disassembled and rotationally installed again, so that the now unworn region is arranged in the load region of the bearing.

EP 1983202B 1 discloses a coupler pressure bearing for use in a coupler between the car and the bogie of a railway vehicle, wherein the outer housing has a horizontally oriented base from which side walls and a central rod originate. A hinge bearing, referred to as outer ball, is provided at or at least partially in the outer housing. Furthermore, there are so-called internal balls which are arranged at the intermediate rod, i.e. screwed thereto. The outer ball is between the inner ball and the outer housing.

Disclosure of Invention

The invention is based on the object of proposing an improved hinge bearing arrangement in relation to the prior art, which is characterized by a particularly advantageous relationship between the required installation space and mechanical loadability while producing a friendly construction and low susceptibility to wear.

Said object is achieved according to the invention by means of an articulated bearing arrangement having the features of claim 1. In a basic solution known per se, an articulated bearing arrangement provided for the articulated connection of a car body of a rail vehicle comprises two concentrically staggered articulated bearings, namely a main bearing as an outer bearing and a run-off-preventing bearing as an inner bearing, wherein the main bearing comprises an outer convex bearing part connected to a load-bearing connection and an outer concave bearing part connected to a semitrailer connection. Anticreep bearing includes: an inner male bearing member fixedly connected with a semi-hitch coupler via a bolt; and an inner concave bearing member fixedly connected to the load-bearing connecting member, the name of the anti-drop bearing being selected independently of whether anti-drop is actually required in operation of the articulating bearing device.

According to the invention, the outer male bearing part has a spherically curved sliding surface and is designed as a one-piece lower housing part of the main bearing which is directly connected to the load-bearing connection element by means of a first screw connection, and the outer male bearing part has a further sliding surface and is designed as a one-piece upper housing part of the main bearing which is directly connected to the semi-mounted connection element by means of a second screw connection, said upper housing part furthermore comprising a pin. The entire hinge bearing arrangement is therefore particularly compact and component-saving. This reduces the time requirement for the first installation of the hinge bearing arrangement and at the same time reduces the personnel required for this.

According to one possible embodiment, the lower housing part, which is rigidly connected to the load-bearing connecting part, has an outer lateral surface which is inserted into the receptacle of the load-bearing connecting part and projects beyond the spherically curved sliding surface of the outer convex bearing part in the radial direction.

In this case, a shoulder is formed between the spherically curved sliding surface and the outer side of the outer male bearing part, into which shoulder a seal is inserted which is in contact with the outer female bearing part and which has, for example, an annularly encircling V-shaped cutout at its outer circumferential surface. The sealing element, in addition to the lower housing part and the outer concave bearing part, i.e. the upper housing part, is optionally also in contact with the load-bearing connecting piece, the sealing action of the sealing element being maintained even during a significant pivoting movement of the connecting piece, also about the horizontal pivot axis. Despite its simple design, the seal thus provides the desired sealing function under all conditions of operation which are in accordance with regulations.

The lower housing part connected to the load-bearing connecting piece has, in a preferred embodiment, an inner side concentric to the outer side, into which inner concave bearing piece is inserted. The inner concave bearing part can be supported here on an inner shoulder which closes the inner side upwards.

According to the invention, the connection between the housing parts and the associated connecting part, which in the case of the lower housing part is a load-bearing connecting part and in the case of the upper housing part is a half-hitch connecting part, is established by screwing. Thereby, it is possible to rapidly and simply replace the hinge bearing device.

The upper housing part connected to the semi-mounted connection part via the second screw connection part is formed in one piece with the downwardly directed bolt. The bolt is connected to a housing plate, which serves as a cover, of the upper housing part, viewed from above.

The upper housing part can be partially conical and can be inserted into a correspondingly shaped receptacle of the half-hook connection. In a particularly space-saving embodiment, the conical wall region of the upper housing part overlaps in the radial direction with a further sliding surface of the outer female bearing part, which is likewise formed by the upper housing part. The radial direction here relates to the vertically oriented center axis of the articulated bearing arrangement. Overlap in the radial direction is synonymous with: at least one imaginary cylinder is present, which is concentric to the center axis and whose cylinder side faces intersect both the conical wall region and the concave further sliding surface.

In contrast to the upper shell, which is preferably closed upward by the mentioned shell plate, the lower shell has a central opening or opening, which is not necessarily covered, in a preferred embodiment. Through which the pin, which is connected in one piece with the upper housing part, is visible from below. The downward orientation of the pin and the shaping and orientation of the other bearing components prevent water from accumulating during operation of the rail vehicle. Thereby also preventing the accumulation of dirt.

All four concavely or convexly curved bearing elements have sliding surfaces which can be formed by any sliding bearing material known in principle. The slide bushing can be glued in a known manner to a basic body provided in the case of the main bearing by the lower housing part or the upper housing part.

Drawings

Embodiments of the present invention are explained in detail below with reference to the drawings. Shown here are:

figure 1 shows a cross-sectional view of a hinge bearing arrangement,

fig. 2 shows a perspective view of the hinge bearing arrangement.

Detailed Description

An articulated bearing device, generally designated by reference numeral 1, is provided for use in a rail vehicle. With regard to the basic function of the hinge bearing device 1, reference is made to the prior art described in detail at the outset.

The articulated bearing arrangement 1 comprises a load-bearing connecting piece 2 and a semi-mounted connecting piece 3, wherein the connecting plates 4, 5 of the connecting

pieces

2, 3 are vertically oriented in the mounted state of the articulated bearing arrangement 1 and are fixedly connected with the rail vehicle.

Each connecting

element

2, 3 has a substantially horizontally oriented plate section 7, 8.

There are holes 10 in the plate sections 7 of the load-bearing connecting element 2 and holes 11 in the plate sections 8 of the connecting element 3 lying below them. In the

bores

10, 11, bearing assemblies, generally designated 12, are accommodated, which in the narrower sense are also referred to as hinge bearing arrangements.

The bearing assembly 12 includes a main bearing 13 as an outer bearing and a drop-off prevention bearing 14 as a smaller inner bearing. The outer male bearing piece 15 and the outer female bearing piece 16 are parts of the main bearing 13. Here, the outer male bearing piece 15 is simultaneously a lower housing piece of the main bearing 13 and the outer female bearing piece 16 is simultaneously an upper housing piece of the main bearing 13. Accordingly, the sliding

surfaces

17, 18 are provided by the lower housing part 15 or the upper housing part 16.

In the load-bearing connecting part 2, more precisely in the plate section 7, there is a receptacle 19 which concentrically surrounds the opening 10 and into which the lower housing part 15 is inserted. The axis of symmetry of the receptacle 19 is identical to the vertically oriented central axis of the hinge bearing arrangement 1, indicated by M. The outer cylindrical side of the lower housing part 15, which is held by the receptacle 19, is designated by 20. A shoulder 21 is formed between the sliding surface 17 and the side surface 20 of the outer male bearing part 15, in which shoulder a sealing element 23 is placed. The sealing element 23 has a V-shaped cutout 24 on its outer circumferential surface and is in contact with a total of three components, namely the housing parts 15, 16 and the load-bearing connecting piece 2. In order to fasten the lower housing part 15 in the plate section 7 of the load-bearing connecting part 2, screws 22 are provided which project into the receptacle 19 and are arranged concentrically around the opening 10.

Unlike the lower housing part 15, the upper housing part 16 has a closed housing plate 25. The housing plate 25 is inserted into the receptacle 26 of the semi-trailer connection 3 and is fastened there by means of screws 29. The upper housing part 16 is shaped partially conically in correspondence with the conical wall 27 of the housing plate 25. Furthermore, the upper shell part 16 has a cylindrical section 28, which is likewise inserted into the receptacle 26.

Starting from the housing plate 25 is a bolt 30, which is oriented vertically downwards. The pin 30 is concentrically surrounded by an inner side 31 of the lower housing part 15. An inner male bearing part 32 of the inner bearing 14 is arranged on the bolt 30 and is fixed by means of a nut 33. The inner male bearing element 32 is in contact with an inner female bearing element 34 which is inserted into the inner side 31 and stops against an inner shoulder 35 of the outer male bearing element 15.

Description of the reference numerals

1 bearing arrangement 2 bearing connection 3 semi-mounted connection 4-5-6-7 bearing connection plate section 8 semi-mounted connection plate section 9-10 bearing connection plate section 11 semi-mounted connection plate section hole 12 bearing assembly 13 main bearing, outer bearing 14 anti-drop bearing, inner bearing 15 outer male bearing member, lower housing member 16 outer female bearing member of main bearing, sliding surface 18 outer female bearing member of upper housing member 17 outer male bearing member of main bearing another sliding surface 19 bearing connection housing 20 outer housing member outer sliding surface 21 shoulder 22 screw 23 seal 24V-cut 25 housing plate 26 housing member receiving portion 27 housing plate outer housing member conical wall portion 29 screw 30 bolt 31 inner side 32 inner male housing member inner side surface 32 inner male bearing member The ball-like bearing member 33 nut 34 has an inner concave bearing member 35 and an inner shoulder M, the central axis of which is defined by the shoulder M.

Claims

1. An articulated bearing arrangement (1) for articulated connection of a car of a rail vehicle, having two concentrically staggered articulated bearings (13, 14), namely a main bearing (13) as an outer bearing and a drop-off prevention bearing (14) as an inner bearing, wherein the main bearing (13) comprises an outer convex bearing part (15) connected with a load-bearing connection (2) and an outer concave bearing part (16) connected with a semi-trailer connection (3), and wherein the drop-off prevention bearing (14) comprises: an inner male bearing piece (32) fixedly connected with the semi-mounted connecting piece (3) via a bolt (30); and an inner concave bearing element (34) fixedly connected to the load-bearing connecting element (2),

it is characterized in that the preparation method is characterized in that,

the outer, convex bearing element (15) has a spherically curved sliding surface (17) and is designed as a one-piece lower housing element (15) of the main bearing (13), which is directly connected to the load-bearing connection element (2) by means of a first screw connection, and the outer, concave bearing element (16) has a further sliding surface (18) and is designed as a one-piece upper housing element (16) of the main bearing (13), which is directly connected to the semi-mounted connection element (3) by means of a second screw connection and furthermore comprises a pin (30).

2. Hinge bearing device (1) according to claim 1,

the lower housing part (15) connected to the load-bearing connecting part (2) has an outer lateral surface (20) which is inserted into a receptacle (19) of the load-bearing connecting part (2) and which projects beyond the spherically curved sliding surface (17) of the outer convex bearing part (15) in the radial direction.

3. Hinge bearing device (1) according to claim 2,

a shoulder (21) is formed between the outer side (20) and the spherically curved sliding surface (17) of the outer convex bearing part (15), into which a sealing element (23) which is in contact with the outer concave bearing part (16) is inserted.

4. Hinge bearing device (1) according to claim 3,

the seal (23) has an annularly encircling V-shaped cutout (24) on its outer circumferential surface.

5. Hinge bearing device (1) according to claim 3 or 4,

the seal (23) is additionally in contact with the load-bearing connecting piece (2).

6. Hinge bearing device (1) according to any of claims 2 to 5,

the lower housing part (15) connected to the load-bearing connecting piece (2) has an inner side (31) concentric to the outer side (20), into which the inner concave bearing piece (34) is inserted.

7. Hinge bearing arrangement (1) according to any one of claims 1 to 6,

the upper housing part (16) is partially conical and is inserted into a correspondingly shaped receptacle (26) of the semi-mounted connecting part (3).

8. Hinge bearing device (1) according to claim 7,

the conical wall region of the upper housing part (16) overlaps in the radial direction with a sliding surface (18) of the outer concave bearing part (16) which is likewise formed by the upper housing part (16).