CN210062990U

CN210062990U - Articulated frame structure for rail vehicle

Info

Publication number: CN210062990U
Application number: CN201920413320.8U
Authority: CN
Inventors: 孔凌嘉; 王文中; 赵自强
Original assignee: Beijing Institute of Technology BIT
Current assignee: Beijing Institute of Technology BIT
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-02-14
Anticipated expiration: 2029-03-29

Abstract

The utility model provides an articulated frame structure for railcar, frame adopt components of a whole that can function independently articulated formula in this structure. The bending of the rail is accommodated by the relative rotation of the split carriages as the rail car turns along the rail. Adopt the utility model discloses a frame structure can reduce turning radius, the trafficability characteristic when improving the railcar and turning.

Description

Articulated frame structure for rail vehicle

Technical Field

The utility model belongs to the rail transport field, concretely relates to articulated frame structure for railcar.

Background

The rail car is widely used as a transportation device. The rail car often needs to change direction during running. When the wheelbase of the rail car is large and the axle is rigidly connected with the frame, the required turning radius is large and the trafficability characteristic during turning is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides an articulated frame structure for railcar. Adopt the utility model discloses a frame structure can reduce turning radius, the trafficability characteristic when improving the railcar and turning.

The utility model discloses a realize through following method:

the frame structure is divided into a plurality of parts, for example two parts, which are connected with a hinge. When the rail car drives into the arc-shaped rail to turn, the two parts of the frame connected by the hinge can adapt to the bending of the rail through relative rotation, thereby realizing the turning with smaller radius and being beneficial to the improvement of the trafficability of the rail car during the turning.

Drawings

FIG. 1 is a schematic view of a rigid frame railcar;

FIG. 2 is a schematic view of a railcar employing a two-piece articulated frame structure;

FIG. 3 is a schematic view of a railcar and track configuration employing a two-piece articulated frame structure;

FIG. 4 is a schematic view of a rigid frame railcar turning;

FIG. 5 is a schematic view of a railcar turning utilizing a two-piece articulated frame structure;

fig. 6 is a schematic view of a railway 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 rails-51, 52, arc rails-61, 62.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings by way of examples.

Take a rail car with a two-body hinged frame structure as an example, which runs along a double-L-shaped hanging rail.

FIG. 1 is a schematic view of a four-wheeled (two-row-wheel) rigid frame railcar; fig. 2 shows a schematic view of a rail vehicle with a two-piece articulated frame structure, the frame of which is divided into two parts (21, 22) connected by a hinge 3.

Fig. 3 shows a case where a railcar employing a two-body articulated frame structure travels along

straight rails

51, 52.

Fig. 4 is a schematic view showing a minimum turning radius when the rigid frame railcar turns along the

arc rails

61, 62, and fig. 5 is a schematic view showing a case where the railcar employing the two-body articulated frame structure turns along the

arc rails

61, 62 at the turning radius shown in fig. 4. comparing fig. 4 with fig. 5, it can be seen that the railcar employing the two-body articulated frame structure can further reduce the turning radius thereof, the radius R of the outer side flange of the arc rail 61 when the railcar employing the two-body articulated frame structure turns is smaller than the radius R of the outer side flange of the arc rail 61 when the railcar employing the rigid frame structure turns, and the normal included angle α between the wheel shaft of the railcar employing the two-body articulated frame structure and the

arc rails

61, 62 is smaller than the normal included angle α between the wheel shaft of the railcar employing the rigid frame structure and the

arc rails

61, 62, which indicates that the railcar employing the two-body articulated frame structure has better passing performance when turning.

With the increase of the wheelbase of the rail car, a rail car with a three-body articulated frame structure (as shown in fig. 6) or a rail car with a more than three-body articulated frame structure can also be adopted.

Claims

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.