CN210062990U - Articulated frame structures for rail cars - Google Patents

Abstract

The utility model provides an articulated frame structure for a rail car. In the structure, the frame adopts a split articulated type. When the rail car turns along the track, the relative rotation of the split frame is used to adapt to the curvature of the track. By adopting the frame structure of the utility model, the turning radius can be reduced, and the passability of the rail car during turning can be improved.

Description

Articulated frame structures for rail cars

technical field

The utility model belongs to the field of rail transportation, in particular to an articulated frame structure for rail cars.

Background technique

Rail cars are widely used as a transportation device. Rail cars often need to change direction during travel. When the front and rear wheelbases of the rail car are large and the axles are rigidly connected to the frame, the required turning radius is large, and the passability during turning is poor.

Utility model content

The utility model provides an articulated frame structure for a rail car. By adopting the frame structure of the utility model, the turning radius can be reduced, and the passability of the rail car during turning can be improved.

The utility model is realized by the following method:

The frame structure is divided into parts, eg two parts, which are connected by a hinge. When the rail car drives into the curved track and turns, the two parts of the frame connected by the hinge can adapt to the bending of the track by relative rotation, so that the turning with a small radius can be realized, which is beneficial to the improvement of the passability of the rail car when turning.

Description of drawings

1 is a schematic view of a rigid frame rail car;

2 is a schematic diagram of a rail car using a two-body articulated frame structure;

3 is a schematic diagram of a rail car and a track form using a two-body articulated frame structure;

Figure 4 is a schematic diagram of a rigid frame rail car turning;

5 is a schematic diagram of a turning of a rail car using a two-body articulated frame structure;

FIG. 6 is a schematic diagram of a rail car using a three-body articulated frame structure.

In the figure: rigid frame-1, articulated frame-21, 22, connecting hinge-3, wheels-41, 42, 43, 44, straight rail-51, 52, arc rail-61, 62.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

Take a rail car with a two-body articulated frame structure running along double L-shaped suspension rails as an example.

Figure 1 shows a schematic diagram of a four-wheel (two rows of wheels) rigid frame rail car; Figure 2 shows a schematic diagram of a rail car using a two-body articulated frame structure, the frame is divided into two parts (21, 22 ), connected with hinge 3.

FIG. 3 shows the situation in which the rail car using the two-body articulated frame structure travels along the straight rails 51 and 52 .

Fig. 4 is a schematic diagram of the minimum turning radius of the rigid frame rail car when turning along the arc rails 61, 62, Fig. 5 is a rail car with a two-body articulated frame structure turning along the arc rails 61, 62 with the turning radius shown in Fig. 4 Schematic diagram of the time. Comparing Fig. 4 and Fig. 5, it can be seen that the rail car using the two-body articulated frame structure can further reduce its turning radius; when the rail car using the two-body articulated frame structure turns, the outer rib of the arc rail 61 The radius R is smaller than the radius R of the outer rib of the arc rail 61 when the rigid frame rail car turns; the normal angle α between the axle and the arc rails 61 and 62 of the rail car using the two-body articulated frame structure is smaller than that of the rigid frame rail car The normal included angle α between the wheel axle and the arc rails 61 and 62 shows that the rail car with the two-body articulated frame structure has better passability when turning.

As the front and rear wheelbase of the rail car increases, a rail car with a three-body articulated frame structure (as shown in FIG. 6 ) or a rail car with more than three-body articulated frame structure can also be used.

Claims (2)

1. The utility model provides an articulated frame structure for railcar which characterized by: the frame adopts a split hinged structure, and the bending of the track is adapted through the relative rotation of the split frame when the rail car turns along the track.

2. The articulated frame structure for railcars of claim 1, characterized in that: the frame can be divided into two bodies, three bodies and a plurality of bodies more than three bodies.

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