KR20070020414A - Adapter device - Google Patents

Abstract

In a railway bogie comprising a bogie frame and two or more spring units per wheel, an integrated adapter bridges the spring unit and is arranged between the spring unit on one side and the bogie frame on the other side. .

Description

Railroad view {RAILWAY BOGIE}

The present invention relates to a railway bogie with a bogie frame and at least two spring units per wheel.

Bogies with helical springs are known from the UIC specification, and the axle suspension consists of a helical spring combined with friction damping. Thus, the spring is connected to the viewing frame using a cap integrally formed with the viewing frame to receive the top of the spring, and is positioned on a support arm integrally formed with the lower portion of the axle housing.

US patent application 2002-0089102 A1 discloses a hydraulic spring comprising a membrane. The hydraulic spring is also known to be used as a main spring, in particular in railway vehicles.

In addition, the catalog of ContiTech Luftfedersysteme GmbH, located in Hannover, Germany, entitled "Air spring systems for modern rail cars" published in October 1998, describes how to use hydraulic springs with membranes in two axle views. Is released.

One object of the present invention is to provide an improved railway bogie comprising a bogie frame and at least two spring units per wheel, which makes it easier for different types of spring units to be connected with different types of axles with different dimensions. And can be connected to a viewing frame having dimensions dimensioned in a reliable manner.

It is an object of the invention to implement the features of claim 1. Preferred embodiments are described in the dependent claims.

According to claim 1, a railway bogie with a bogie frame and at least two spring units per wheel has an integral adapter bridges the spring unit and between the spring unit on one side and the bogie frame on the other side. Characterized in that arranged.

The adapter is thus used to mount the various types of spring units connected to various types of axles with various dimensions in a preferred way to the viewing frame with standardized dimensions without deformation of the viewing frame. The adapter is deformed according to the axle and spring unit of the type used, which makes it possible to implement any deformation of the adapter more easily than can be deformed as the viewing frame itself, saving further costs.

Due to the precisely pre-manufacturable adapter, it is further ensured that the two spring units are mounted on the bogie frame exactly at defined intervals between the main axles of the two spring units, and therefore spring units due to all deviations from the defined intervals Tangential deviations of the components are caused, and undesirable deformation of the spring characteristics occurs.

The details, features and advantages of the invention are described with reference to the preferred embodiments of the invention according to the drawings.

1 is a cross-sectional view in one wheel area of a bogie;

FIG. 2 is a cross-sectional view taken along the line BB of FIG. 1. FIG.

<Drawing symbol>

2: wheel

4: rolling bearing

6: viewing frame

10: axle box

12: cup-shaped area

20: spring element

22: elastomeric element

24: metallic elements

26: center

28: plunger shaped area

30: fluid

42: sealing ring

44: screw

50: bridging adapter

52: bolts

1 is a longitudinal cross-sectional view showing the area of one wheel 2 formed in a so-called Y 25 type bogie, which is cut along the plane formed by the axis of rotational symmetry of the first and second hydraulic springs . The illustrated part of the bogie includes an axlebox 10, with rolling bearings 4 mounted in the middle region of the axle 10. The rolling bearing 4 is supported at one end of the axle of one of the two axles of the bogie.

The base of the axle 10 extends from each side to the left side and the right side forming the cup shaped region 12. Each of the hydraulic springs includes a spring element 20, which is attached to each of the cup-shaped regions 12 of the axle 10. The metallic center 26 is located at the center of each spring element 20.

The two central parts 26 are attached to one bridging adapter 50. The center 26 and bridging adapter 50 thus have holes for connecting the center 26 with the bridging adapter 50 by means of two bolts 52, which are shown as not cut in FIGS. 1 and 2. In another embodiment, the bolt 52 may be integrally formed with the bridging adapter 50 or a portion of the central portion 26, or the central portion 26 may be connected to the bridging adapter 50 by any other connecting means. Can be.

The bridging adapter 50 is attached to the longeron of the frame 6 of the bogie, so that the longitudinal extends in the longitudinal direction parallel to the lane and is shown uncut in FIG. 1. The bridging adapter 50 is preferably connected to the bogie frame 6 by welding.

The left spring element 20 in the engaged state and the region 12 in the form of the left cup are described in detail, and the right cup shaped region 12 in combination with the right spring element 20 is equally provided. 2 is a cross-sectional view taken along the line BB of FIG. 1. The spring element 20 comprises an elastomeric element 22 in the form of a sleeve and a metallic element 24 in the form of an intermediate sleeve formed in an alternating arrangement, such that the elastomeric element 22 and the metallic element 24 are bulky. Connected by means of vulcanisation. The central part 26 is also connected to the adjacent elastomeric element 22 by means of bulking means.

The spring element 20 is fixed to the cup-shaped region 12 of the axle 10 by a sealing ring 42, which is attached to the axle 10 by a screw. In another embodiment, the spring element 20 may be vulcanized directly into the cup shaped region 12. The spring element 20 together with each cup-shaped region 12 of the axle 10 forms a volume for the fluid 30, in particular hydraulic fluid. This volume is at least partially filled with fluid 30. The central portion 26 extends into the volume forming a plunger shaped region 28. The at least disc shaped region at the end of the plunger shaped region 28 is therefore dipped into the fluid 30, whereby this device functions as a damper. The cup-shaped region 12 of the axle 10 together with the fluid 30 and the spring element 20 form a hydraulic spring.

In another embodiment of the invention, for example according to the above-mentioned U.S. Patent 2002-0089102 A1, the hydraulic spring comprises a membrane instead of the plunger shaped section 28 of the central portion 26, and thus The cup-shaped region 12 of the axle 10 thus forms part of the housing of the hydraulic spring.

Claims (9)

In a railway bogie comprising a bogie frame and two or more spring units per wheel, an integral adapter bridges the spring unit and is arranged between the spring unit on one side and the bogie frame on the other side. Railway view featuring. 2. A railway bogie according to claim 1, wherein the bogie consists of a Y 25 type. The railway bogie according to claim 1 or 2, wherein the at least one spring unit is formed by a hydraulic spring. 4. A railway bogie according to any one of claims 1 to 3, wherein the adapter is attached to the bogie frame by welding. The railway bogie according to any one of claims 1 to 4, wherein the adapter is connected to one or more of the spring units by one or more bolts. 6. A railroad bogie according to claim 5 wherein the bolt is an integral part of the spring unit or the adapter. 7. A railroad bogie according to any one of the preceding claims, wherein the adapter is configured to fit in the bogie frame with dimensions of the specification. 8. A railroad bogie according to any one of the preceding claims wherein the adapter has a rectangular cross section. 9. A railway bogie according to any one of the preceding claims, wherein the adapter extends long in the direction in which the adapter bridges the spring unit.

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