CN201151852Y

CN201151852Y - Railway track gap longitudinal connecting structure

Info

Publication number: CN201151852Y
Application number: CNU2007201176618U
Authority: CN
Inventors: 张秀福
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-13
Filing date: 2007-12-13
Publication date: 2008-11-19
Anticipated expiration: 2017-12-13

Abstract

A railway steel rail joint longitudinal linking structure pertains to the rail linking technology. The lateral parts on the two ends of a main rail are a single-layer stepped structure; a connecting auxiliary rail which is wholly T-shaped is superposed and connected between the single-layer stepped structures on the two sides of the main rail so as to connect the adjacent main rails; in addition, the upper end face of the connecting auxiliary rail is superposed with the upper rail face of the main rail. The structure has the advantages that the steel rail is not affected by thermal expansion; the stability of high-speed vehicles can be ensured; small vibration and noise is conducive to prolonging the service life of the vehicle and the steel rail; the check, maintenance and replacement are convenient, the operation cost is low and the structure is simple.

Description

The vertical draw bail of railway track rail gap

Technical field

The utility model belongs to the track connection technique in the rail traffic, relates generally to the vertical draw bails of rail rail gap such as railway, light rail.

Background technology

The rail that China uses now is to adopt lateral clearance all, rail gap contact coupling method, this method is also all adopted in countries in the world, and comprises welding type gapless rail, the requirement that incompatibility is expanded with heat and contract with cold, rail is subjected to the influence of low temperature and shortens in the winter time, and the gap gap increases, and what have reaches 30mm, wheel by the time produce bigger vibration, pound through long-term the pressure, rail's end portion is pounded heap, easily causes splice bar and bolt to lose.Rolling bearing easily causes roller and retainer breakage through long-term vibration, makes vehicle combustion axle, the welded type rail easily produces breakage, splits faults such as folding, when summer, rail was subjected to heat-flash weather, particularly weld gapless rail, the distortion of rising outside producing is bigger, even reach snakelike state, have only and adopt the way of cutting, welding to solve, once rail breaks down, it is very complicated again to change the welded type rail, the inconvenience maintenance, and welding equipment is very expensive.

Summary of the invention

The purpose of this utility model is exactly the problem that exists at above-mentioned prior art, design provides a kind of vertical draw bail of railway track rail gap of new structure, reach vehicle operating steadily, reduce and eliminate the gap place with the wheel rolling impact noise, reduce vehicle and rail fault, increase the service life, especially adapt to the expand with heat and contract with cold purpose of variation requirement of rail.

Basic design of the present utility model is, backbone two ends sidepiece is the individual layer step-like structure, the connection auxiliary rail overlapping overlap joint that integral body is the T word shape is configured between the backbone individual layer step-like structure of both sides, adjacent two backbones are connected, and connect the auxiliary rail upper surface and overlap, so far constitute the vertical draw bail of railway track rail gap with rail level on the backbone.

The utility model has changed rail head of rail portion structure, railway track rail gap lateral clearance is become the axial clearance contact to be connected, make wheel when the rail head of rail seam, not produce the jump impingement phenomenon, wheel evenly carries out the transition on another rail rail level through connecting the auxiliary rail rail level from the rail rail level, all the time closely contact with rail level, vibration and noise reduce, vehicle operating is steady, especially the rail longitudinal seam is not expanded with heat and contract with cold by rail influences, the application life and the service property (quality) of rail and vehicle have been prolonged, this is simple in structure, and maintenance and inspection are changed convenient, and running cost is cheap.

Description of drawings

Fig. 1 is that the vertical draw bail of railway track rail gap is totally assembled schematic diagram;

Fig. 2 is a backbone individual layer step side structural representation;

Fig. 3 is the upward view of Fig. 2;

Fig. 4 connects the auxiliary rail structural representation;

Fig. 5 is an A-A sectional view among Fig. 2.

Piece number explanation among the figure:

1, backbone, 2, connection auxiliary rail, 3, positioning boss, 4, detent, 5, chamfering.

The specific embodiment

Below in conjunction with accompanying drawing the utility model optimum implementation is described in detail.The vertical draw bail of a kind of railway track rail gap comprises backbone 1, backbone 1 two ends sidepiece is the individual layer step-like structure, the connection auxiliary rail 2 overlapping overlap joints that integral body is the T word shape are configured between the both sides backbone 1 individual layer step-like structure, adjacent two backbones 1 are connected, and connection auxiliary rail 2 upper surfaces overlap with rail level on the backbone 1.Backbone 1 individual layer step with connect auxiliary rail 2 relative facades on be respectively equipped with positioning boss 3 and detent 4, and positioning boss 3 insertings are in detent 4.At place, the end angle of backbone 1 both sides individual layer step and place, root angle and the two side ends angle that is connected auxiliary rail 2 locates and the chamfering 5 that prevents stress cracking is located to be equipped with in the root angle.Backbone 1 equates with backbone 1 rail level width dimensions with the rail facade gauge H that is connected auxiliary rail 2 connection ends.

During operation, backbone 1 variation of expanding with heat and contract with cold, only change backbone 1 two ends individual layer step and be connected overlapping lap length and tip-clearance partly, auxiliary rail 2 both sides, but the wheel of operation by backbone 1 when being connected between the auxiliary rail 2 the connection rail level, this wheel steadily carries out the transition to from backbone 1 rail level continuously and connects on auxiliary rail 2 rail levels, carry out the transition on next section backbone 1 rail level from connecting auxiliary rail 2 rail levels again, do not produce beat, bump and noise.Chamfering 5 can reduce and avoid the crackle at rail bent angle and place, end angle to take place.Positioning boss 3 cooperates with the plug-in mounting of detent 4 and backbone 1 facade gauge H strengthens, and has strengthened integrative-structure intensity.

Claims

1, the vertical draw bail of a kind of railway track rail gap, comprise backbone (1), it is characterized in that backbone (1) two ends sidepiece is the individual layer step-like structure, connection auxiliary rail (2) the overlapping overlap joint that integral body is the T word shape is configured between both sides backbone (1) the individual layer step-like structure, adjacent two backbones (1) are connected, and connection auxiliary rail (2) upper surface overlaps with the last rail level of backbone (1).

2, the vertical draw bail of railway track rail gap according to claim 1, it is characterized in that backbone (1) individual layer step with connect the relative facade of auxiliary rail (2) on be respectively equipped with positioning boss (3) and detent (4), and positioning boss (3) inserting is in detent (4).

3, the vertical draw bail of railway track rail gap according to claim 1 is characterized in that at place, the end angle of backbone (1) both sides individual layer step and place, root angle and the two side ends angle that is connected auxiliary rail (2) is located and chamfering (5) is located to be equipped with in the root angle.

4, the vertical draw bail of railway track rail gap according to claim 1 is characterized in that backbone (1) equates with backbone (1) rail level width dimensions with the rail facade gauge H that is connected auxiliary rail (2) connection end.