DE1191846B - Trunnion mounting for rail vehicles - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CL:

Number:
File number:
Registration date:
Display day:

B61f

German class: 20 d - 3/03

1191 846
K4753111 / 20d
17th August 1962
April 29, 1965

The invention relates to a pivot bearing for rail vehicles with two coaxial, in the longitudinal direction spaced apart annular rubber-metal blocks, which with their outer jacket surface via an outer sleeve with the bogie frame and with its inner jacket surface are fixedly arranged via an inner sleeve on the pivot of the car body, and one between the two rubber-metal blocks arranged coaxial auxiliary guide, which consists of a with the Trunnion connected inner ring and this outside with play surrounding it, with the bogie frame connected outer ring, the two outer sleeves of the rubber-metal blocks as well the outer ring of the auxiliary guide with the bogie frame and the two inner sleeves of the Rubber-metal blocks and the inner ring of the auxiliary guide form-fit over a bushing with the pivot pin and are releasably connected, according to patent application K41607 II / 20d.

The pivot bearing according to the main patent application is maintenance-free and wear-free, results good running properties, is easy to handle when putting on and taking off the car body and has only a small footprint. However, their structure is relatively multi-part. The task that the invention is based, is to be seen in the advantageous per se pivot bearing after To improve the main patent application while retaining its advantages so that its structure becomes simpler and fewer parts are required.

To solve this problem, the invention proposes that both the outer rings of the two Rubber-metal blocks and the outer ring of the auxiliary guide as well as the inner rings of the Rubber-metal blocks, the inner ring of the auxiliary guide and the bush are each a single component form, the two end-face collars of which are detachable.

These measures, in addition to solving the problem of the invention, also have the advantage that assembly and handling are even easier than before. The production is now up to one Recess in the inner bearing body and in the threaded bolt of the pivot pin only to a simple one Turning and drilling work limited.

In the drawings, an embodiment of the invention is shown schematically. It shows

A b b. 1 a trunnion mounting in a vertical, longitudinal center section lying in each direction in the direction of travel along the line I-I in Fig. 3,

A b b. 2 the pivot bearing in a perpendicular pivot bearing for rail vehicles

Addition to registration: K 4160711/20 d -
Interpretation document 1187 662

Applicant:

Krauss-Maffei Aktiengesellschaft,

Munich-Allach

Named as inventor:

Heinrich Wagner, Munich-Pasing;

Franz Mautner, Munich-Allach

th, transverse to the direction of travel χ longitudinal center section along the line II-II in A b b. 3 and

A b b. 3 the pivot bearing in a cross section along the line III-III in A b b. 1 and 2.

The pivot bearing according to A b b. 1 to 3 consists essentially of one on the in the Drawings not shown car body attached pivot 1 with an inner bearing body 2, a housing 4 attached to the bogie frame 3 with an outer bearing body 5, two spaced apart rubber rings 6 and 7 and one between these with the two Bearing bodies 2 and 5 combined auxiliary guide 8.

The pivot 1 is cylindrical at its lower end located in the bogie frame 3. Subsequent to the cylindrical part of the pivot is conically thickened and with a Annular flange 9 is provided to which the body is firmly and non-rotatably connected to the car body Part connects. The pivot 1 is designed with a coaxial bore 10, the lower End is threaded. In the thread is one with one on the lower face of the pivot 1 resting and with the pivot 1 non-rotatable z. B. by a weld seam connected flange 11 provided hollow threaded bolt 12 screwed, with its free, from a smooth cylindrical and a threaded part existing end protrudes from the pivot 1.

On the cylindrical part of the pivot 1, the inner bearing body 2 is provided, the bore of which

509 567/61

tion is formed in accordance with the pivot 1 and tapered at the upper end. The lower End of the inner bearing body 2 has an inwardly directed annular flange 13, the upper one End face on the flange 11 and its inner jacket on the cylindrical part of the threaded bolt 12 rests.

To a non-rotatable connection between the pivot 1 or the threaded bolt 12 and the To ensure inner bearing body 2, the cylindrical part of the threaded bolt 12 with a through a screw 14 secured feather key 15 is provided, which in a corresponding recess of the annular flange 13 of the inner bearing body 2 engages. To facilitate assembly, the feather key 15 bevelled in a wedge shape at its end facing away from the pivot 1. The outer jacket of the inner Bearing body 2 has two cylindrical bearing surfaces arranged at a distance from the rubber rings 6 and 7 for in each case an inner jacket of the rubber rings 6 ao and 7. Between the support surfaces is the Bearing body 2 is provided with an annular collar 16 which forms the inner ring of the auxiliary guide 8. The end faces of the annular collar 16 are used to partially support the facing end faces the rubber rings 6 and 7, so that they are fixed by the collar 16 in one direction.

To prevent axial displacement of the upper rubber ring 6 in the other direction as well, is the inner bearing body 2 at the upper end with a recess for a partially at the top End face of the rubber ring 6 adjacent ring 17 provided, which is in an annular groove of the inner Bearing body 2 lying snap ring 18 is held in place.

The second axial securing of the lower rubber ring 7 is an annular shoulder 19 on one the inner bearing body 2 is formed in the area of the annular flange 13 screwed-on disk 20, whose outer diameter is made so large that its end face facing the car body when the same is lifted on the outer bearing body 5 or a ring 21 connected to it comes to circulation.

On the other end face of the disc 20 there is a securable, on the free threaded part of the threaded bolt 12 screwed collar nut 22, so that a firm and non-rotatable, but easily detachable Connection of the inner bearing body 2 with the pivot 1 is guaranteed.

The outer bearing body 5 mounted in the housing 4 has a bore corresponding to the housing 4 cylindrical outer jacket and is at its lower, facing away from the car body End provided with an outwardly directed annular flange 23 with axial bores for the in the housing 4 screwable retaining screws 24 as well as those for securing against rotation of the bearing body 5, d. H. for its positive connection with the housing 4 provided fitting bushes 25 is provided. To secure the fitting sleeves 25 is the one on the lower face of the annular flange 23 resting ring centered by an annular shoulder and held in place by the retaining screws 24 21 is provided, which at the same time against part of the lower end face of the adjacent rubber ring 7 and fixes it in one direction. The inner jacket of the outer bearing body 2 is also like the inner bearing body 2 with two cylindrical, the rubber rings 6 and 7 located at a distance Support surfaces provided for the outer jacket, between which an annular inner collar 26 as Outer ring of the auxiliary guide 8 is provided. The end faces of the inner collar 26 in turn serve for axially fixing the facing end faces of the rubber rings 6 and 7.

To secure the upper rubber ring 6 in the second direction is between an annular shoulder of the Housing 4 and the end face of the outer bearing body 5, a ring 27 is provided. The rubber rings 6 and 7 are of identical design and are pressed into the bearing bodies 2 and 5. You can go with one or more vulcanized, coaxial intermediate rings 28 can be provided.

For fastening to the bogie frame 3, the housing 4 has an outer flange 29, which with the bogie frame 3 via dowels, welds or the like. Is positively connected. For stiffening the housing 4 is provided with several longitudinal radial ribs 30. On the car body side At the end of the housing 4 carries a conically tapered collar 31, on the outer jacket of which a corresponding one Ring 32 rests with a bellows attached to the annular flange 9 of the pivot pin 1 33 is connected, so that a tight seal of the housing 4 towards the top without a screw connection is achieved. At the bottom, the pivot bearing is supported by one on the annular flange 23 of the outer Bearing body 5 screwed-on cap 34 made of sheet metal, rubber or the like. Completed.

In order to be able to change the play α of the pivot bearing in the longitudinal direction, the auxiliary guide 8 is provided for each direction of travel in the vertical longitudinal center plane (direction of travel x) with a pair of stops 35, 36, one of which is adjustable. Each adjustable stop 35 consists of a securable threaded plug made of hard steel or the like with a hexagon socket, which is provided in a threaded hole in the outer bearing body 5 in the inner collar 26. The fixed stop 36 in the inner bearing body 2 is in each case formed by a mushroom-shaped high-carbon steel part embedded in the annular collar 16. By adjusting the threaded plugs that each form the adjustable stops 35, the desired play α can be set in each case. If the transverse play b is to be limited, such stop pairs can also be provided for this purpose.

Claims (4)

Patent claims: 1. Trunnion mounting for rail vehicles with two coaxial, longitudinally spaced spaced apart annular rubber-metal blocks with their outer circumferential surface via an outer sleeve with the bogie frame and with its inner jacket surface are fixedly arranged via an inner sleeve on the pivot of the car body, and one between the two rubber-metal blocks arranged coaxial auxiliary guide, which consists of a with the pivot connected inner ring and this outside with play surrounding it, with the bogie frame connected to the outer ring, the two outer sleeves of the Rubber-metal blocks as well as the outer ring of the auxiliary guide with the bogie frame and the both inner sleeves of the rubber-metal blocks and the inner ring of the auxiliary guide via a bushing with the pivot pin and positively are releasably connected, according to patent application K41607II / 20d, characterized in that that both the outer rings of the two rubber-metal blocks (6, 28 and 7, 28) and the The outer ring of the auxiliary guide (8) and the inner rings of the rubber-metal blocks, the inner ring the auxiliary guide and the sleeve each have a single component (outer bearing body 5 and Form inner bearing body 2), the two end-face annular collars (17, 19, 21, 27) of which are detachable. 2. Trunnion mounting according to claim 1, characterized in that the lower annular collar (19) of the inner bearing body (2) from a disc (20) that can be screwed onto the bearing body is formed, the outer diameter of which is greater than the inner diameter of the outer bearing body (5) or a ring (21) connected to it. 3. Trunnion mounting according to claims 1 and 2, characterized in that the for Connecting the inner bearing body (2) with the pivot pin (1) provided threaded bolts (12) is firmly and non-rotatably connected to the pivot pin and has at least one feather key (15), which positively engages in a recess in the inner bearing body. 4. Trunnion mounting according to claims 1 to 3, characterized in that in the auxiliary guide (8) at least two diametrically opposed Pairs of stops (35, 36) are provided, one of which is designed to be adjustable is. 1 sheet of drawings 509 567/61 4.65 © Bundesdruckerei Berlin