RU200829U1 - TOWING ASSEMBLY OF THE ROLLING STATION OF RAILWAYS - Google Patents

Abstract

The utility model relates to rail vehicles, in particular to axleboxes of a freight car bogie. The axlebox assembly contains a cassette bearing (1), fixed with an elastic arc-shaped plate (3) in an adapter (2). The ends of the elastic arcuate plate (3) are placed in the corresponding grooves (2.1) of the adapter (2) and are made in the form of bent stop tabs (3.1). The thrust lugs (3.1) form an elastic end retainer-clamp "A", which with its lateral abutment edges (3.3) abuts against the side surfaces (2.3) and against the supporting surfaces (4.1) of the axle opening (4). In this case, additional fixation of the ends of the arcuate plate (3) on the adapter (2) occurs, which ensures an increase in the operational reliability of the axle box unit of the bogie of the rolling stock of railways. 3 C.p. f-ly, 5 dwg

Description

The claimed utility model relates to rail vehicles, in particular to axle boxes of a freight car bogie.

Known axle box unit of a bogie of a rolling stock of railways, containing a cassette bearing, fixed in the adapter using an elastic arcuate plate, the ends of which are placed in the corresponding grooves made between the base protrusions of the adapter, and fixed on the adapter by means of thrust protrusions made at the ends of the elastic arcuate plate , which with their lower abutting edges are supported on the locating protrusions of the adapter, see RU 2 525 631, B61F 15/00, B61F 15/06, B61F 15/20, publ. 08/20/2014 (prototype).

The technical problem inherent in this device is the low operational reliability of the axlebox unit, caused by the weak connection of the ends of the elastic arc-shaped plate with the adapter.

The technical result of the claimed utility model is to increase the operational reliability of the axle box unit of the bogie of the rolling stock of railways.

The specified technical result is achieved by the axle box unit of the bogie of the rolling stock of railways, containing a cassette bearing fixed in the adapter using an elastic arcuate plate, the ends of which are located in the corresponding grooves made between the adapter's supporting protrusions, and fixed to the adapter using thrust protrusions made at the ends elastic arcuate plates, which with their lower abutment edges are supported on the adapter base projections, the abutment projections of the elastic arcuate plate are made in the form of unidirectionally bent stop petals, forming an elastic end retainer-clamp with lateral stop edges, while the fold lines of the bent stop lugs are made at a mutual angle creating lead-in guides of the constriction at the end of the elastic transverse end fixer-clamp, the stop tabs can be unidirectionally bent towards the center of the arc of the elastic plate; persistent petals can be bent unidirectionally from the center of the elastic plate arc; 65G steel can be used as the material of the elastic arc-shaped plate.

The claimed utility model differs from the prototype in that the thrust protrusions of the elastic arcuate plate are made in the form of unidirectionally bent thrust petals, forming an elastic end retainer-clamp with lateral thrust edges, while the fold lines of the bent thrust petals are made at a mutual angle, creating lead-in guides of narrowing on the end of the elastic transverse end fixer-clamp; persistent petals are unidirectionally bent towards the center of the elastic plate arc; persistent petals are unidirectionally bent from the center of the elastic plate arc; 65G steel was used as the material of the elastic arc-shaped plate. Such differences from the prototype give grounds to assert that the proposed technical solution meets the criterion of patentability of a utility model - "novelty".

The utility model is shown in the drawings, where:

- in Fig. 1 - axle box unit of the railway rolling stock bogie, general view;

- in Fig. 2 - the same, isometric view;

- in Fig. 3 - axle box unit of the railway rolling stock bogie, general view;

- in Fig. 4, 5 - versions of the execution of an elastic arcuate plate, the rest of the details are conventionally not shown, isometric projection.

The axlebox assembly of the bogie of the rolling stock of railways contains a cassette bearing 1 (Fig. 1), fixed in the adapter 2 by means of an elastic arcuate plate 3. The ends of the elastic arcuate plate 3 are placed in the corresponding grooves 2.1 (Fig. 2) made between the base projections 2.2 of the adapter 2. On the ends of the elastic arcuate plate 3 are made unidirectionally bent thrust petals 3.1. The thrust tabs 3.1 are fixed on the adapter 2 with their lower thrust edges 3.2, supported on the locating projections 2.2 of the adapter 2. The bent thrust tabs 3.1 form an elastic end retainer-clamp "A", which has lateral thrust edges 3.3, with which the elastic end retainer-clamp "A" abuts against the side surfaces 2.3 of the adapter 2 and against the supporting surfaces 4.1 of the axle opening 4 (Fig. 3). The fold lines "B" of the bent stop petals 3.1 are made at a mutual angle, creating leading-in guides of the constriction "B" at the end of the elastic end clamp-clamp "A".

The stop tabs 3.1 can be bent unidirectionally to the center of the elastic plate 3 (Fig. 4), or from the center of the elastic plate 3 (Fig. 5).

As the material of the elastic arc-shaped plate 3, steel grade 65G, or any other similar steel can be used.

The utility model is used as follows.

When assembling a bogie of a rolling stock of railways, the cassette bearing 1 must be securely fixed in the adapter 2.

To fix the cassette bearing 1 in the adapter 2, the ends of the elastic arc-shaped plate 3 are placed in the corresponding grooves 2.1 made between the base projections 2.2 of the adapter 2. The presence of guiding constrictions "B" at the ends of the elastic end clamps-clamps "A" and thrust petals 3.1, made of elastic steel, ensures their prompt and unimpeded passage through the grooves 2.1. The lower abutment edges 3.2 of the thrust lugs 3.1 rest on the locating projections 2.2 of the adapter 2. In this case, the thrust lugs 3.1 with their lateral abutment edges 3.3 resiliently abut against the lateral surfaces 2.3 of the adapter 2 and in the support surfaces 4.1 of the axle-box opening 4, securely fixing the ends of the elastic arc-shaped plate 3 on adapter 2, excluding the movement of the ends of the elastic arc-shaped plate 3 along the locating protrusions 2.2 and the cassette bearing 1 in the adapter 2.

Depending on the design of the adapter 2 and the axle opening 4, the thrust lugs 3.1 can be unidirectionally bent towards the center of the arc of the elastic arc-shaped plate 3, or bent away from the center of the arc of the elastic plate (Fig. 5).

To ensure the operability of the proposed axle box assembly, elastic steel should be used as the material of the elastic arc-shaped plate, which, for example, can be steel grade 65G, or any other similar steel.

Due to the fact that the thrust lugs 3.1 form an elastic end retainer-clamp "A", which with its lateral abutment edges 3.3 abuts against the side surfaces 2.3 of the adapter 2 and the supporting surfaces 4.1 of the axle-box opening 4, and with the thrust lugs 3.1 - in the locating projections 2.2 adapter 2, there is an additional elastic fixation of the ends of the elastic arcuate plate 3 on the adapter 2, which increases the operational reliability of the axle box unit of the bogie of the rolling stock of railways.

Claims (4)

1. Axlebox unit of a bogie of a rolling stock of railways, containing a cassette bearing, fixed in the adapter using an elastic arc-shaped plate, the ends of which are located in the corresponding grooves made between the adapter's base protrusions, and are fixed on the adapter using thrust protrusions made at the ends of the elastic arc-shaped plates, which with their lower stop edges are supported on the adapter base projections, characterized in that the stop lugs of the elastic arcuate plate are made in the form of unidirectionally bent stop petals forming an elastic end retainer-clamp with lateral stop edges, while the fold lines of the bent stop lugs are made under a mutual angle creating leading tapering guides at the end of the elastic transverse end fixer-clamp. 2. The axle-box unit according to claim 1, characterized in that the thrust petals are bent unidirectionally towards the center of the arc of the elastic arcuate plate. 3. Axlebox unit according to claim 1, characterized in that the thrust petals are bent unidirectionally from the center of the arc of the elastic arcuate plate. 4. Axle box unit according to claim 1, characterized in that steel of the 65G grade is used as the material of the elastic arcuate plate.

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