CN2338373Y

CN2338373Y - Improvement for joint of rails

Info

Publication number: CN2338373Y
Application number: CN 98227369
Authority: CN
Inventors: 张卫星
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-07-14
Filing date: 1998-07-14
Publication date: 1999-09-15
Anticipated expiration: 2008-07-14

Abstract

The utility model relates to an improvement for a joint of rails and is characterized in that a half rim notch is arranged in the length direction of the end part of each rail, therefore, the end part of each rail form an extension part. The extension parts of two rails are mutually joggled and coincident on the position of the notch, and a gap is left between the two rails of the top ends of the extension parts. The improvement for a joint of rails does not greatly change the existing rail and has the advantages of simple structure and convenient mounting. The improvement for a joint of rails efficiently reduces the impact force of a wheel and the joint of rails and plays the very large actions of prolonging the service life of the wheel and the rails, maintaining the stable running process of the train and reducing the noise.

Description

A kind of improvement of rail joint structure

The utility model belongs to transportation class, is a kind of improvement of rail joint structure.

The people who often takes train has sent when having got used to train running rapid clickly the sound of joint, and this is the impact sound that wheel sends when crossing two lengths of rail joints.Have a gap between two lengths of rail, wheel produces of short duration decline, uphill process when the rail gap of this a lot of of process.Because the weight of train is big, the speed of a motor vehicle is high, this bump is very violent, has produced great impact.When driving, this impact has been brought following adverse effect: 1. the application life that has shortened wheel and rail; 2. this periodic impact has been aggravated rocking of car body, is unfavorable for further improving the stationarity of train; 3. influence the further speed-raising of train; The operation noise is from taking, transporting no matter 4. produce greatly, still is that this periodic bump of wheel and rail all is a problem of needing solution badly from the angle of environmental protection.

But this problem can not solve by the gap of cancelling simply between two lengths of rail.Because there is the phenomenon of expanding with heat and contract with cold in rail.Therefore when being installed, rail must between every lengths of rail, keep certain clearance.As can be seen, this gap is narrower in summer, winter broad.

The purpose of this utility model is that existing rail joint is improved, and a kind of rail joint structure that does not have interruption in the longitudinal direction is provided, to reduce the impact force that produces when wheel crosses rail joint.

The technical solution of the utility model is: a kind of rail joint structure, a half of breach is arranged on the length direction of rail end, thereby make the end of rail form an elongated portion, the elongated portion of two lengths of rail overlaps at the mutual joggle of indentation, there, leave the space between two lengths of rail on elongated portion top, promptly the joint of rail produces two gaps of staggering mutually in the longitudinal direction.This joint design does not form breakpoint at the middle part of every rail, avoids or has reduced the impact that produced when train wheel was pressed joint, has solved the problem of expanding with heat and contract with cold of rail simultaneously.

This rail joint does not have to do very big change to existing rail structure, and it is simple in structure, and is easy for installation, can reduce the impact of wheel and rail joint effectively, to prolonging the application life of wheel and rail, keep the train even running, reducing noise has very big effect.

Below in conjunction with accompanying drawing embodiment of the present utility model is described further.

Fig. 1 is the structural representation of this rail joint.

Fig. 2 is a kind of embodiment schematic diagram of this rail joint.

Fig. 3 is the another kind of embodiment schematic diagram of this rail joint.

As shown in Figure 1, there is a breach end of rail 1, produces an elongated portion 2 thus, and the elongated portion width is half of rail width.The elongated portion of two lengths of rail overlaps at the mutual joggle of indentation, there, forms one "

" shape mating face.Simultaneously leave space 3, be used for expanding with heat and contract with cold of rail on the top of elongated portion 1.

Fig. 2 is a kind of example structure of this rail joint, and its elongated portion 2 is half of the first half of " worker " shape rail.

Fig. 3 is the another kind of example structure of this rail joint, and its elongated portion is half of " worker " shape rail.

Claims

1. rail joint structure, it is characterized in that on the length direction of rail end a half of breach being arranged, thereby make the end of rail form an elongated portion, the elongated portion of two lengths of rail overlaps at the mutual joggle of indentation, there, leave the space between two lengths of rail on elongated portion top, promptly the joint of rail produces two gaps of staggering mutually in the longitudinal direction.

2. rail joint structure according to claim 1 is characterized in that half that described elongated portion width is the rail width.