CN2730920Y

CN2730920Y - Improved rail joint

Info

Publication number: CN2730920Y
Application number: CN 200420085033
Authority: CN
Inventors: 张银生
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-03
Filing date: 2004-08-03
Publication date: 2005-10-05
Anticipated expiration: 2014-08-03

Abstract

The utility model relates to an improved rail joint, which comprises a rail, a cleat of the railhead and the screw bolt of the cleat of the railhead . The improved rail joint is characterized in that a fish plate cleat (2) is inserted in a gaping place formed by sawing on the outside of two adjacent rail joints, which is fixed by the fixing screw bolt (5) of the fish plate cleat . The improved rail joint has the advantages that the traveling comfort of the train is remarkably improved, the traveling noise of the train is further reduced, and the service life of the rail is prolonged.

Description

A kind of improved rail joint

Technical field

The utility model relates to rail joint, relates to a kind of improved rail joint in more detail.

Background technology

Train is a kind of conveniently vehicles, and it plays an important role for accelerating society and development and national economy.The people who often takes train has deep memory, and promptly train sends rhythmical roar in running, and this is the impact sound that train wheel produces when crossing rail joint on the railway.Rail is along with four seasons spring, summer, autumn and winter weather variation of temperature, and generation is expanded with heat and contract with cold, and it is inevitable leaving the gap between rail and the rail.The gap that has certain-length between two lengths of rail, wheel produce of short duration decline and uphill process through this each and every one rail gap the time.Because the weight of train own is big, speed of a motor vehicle height produces violent impact, and that supervenes the impact sound of " crash pan ", " crash pan " and vehicle body overturns vibrations up and down.Train of the prior art moves the noise that produces on a rule rail, influenced rider and railway resident's along the line rest.Impact between train vehicle body and the rail has shortened the application life of wheel and rail, has aggravated rocking of vehicle body, is unfavorable for improving the stationarity and the speed-raising of train running.The shortcoming that the rail of present track exists can find out clearly that from Fig. 1 to Fig. 3 wheel at first contacts and compresses the B point because the elastic deformation of rail and then compression A point and bump A point.As shown in the figure, wheel and rail are contacted at 2, its consequence is, two right angles of rail head become two obtuse angles, causes the vibrations aggravation, and impact sound strengthens, and becomes day by day greatly along with two right angles become two obtuse angles, must the replacing rail.

The technical solution that also has proposition to address the above problem in the prior art.For example: in the patent No. is ZL 00255693.6, the utility model name is called in " a kind of rail joint " utility model patent, it discloses a solution, promptly between two rails, be provided with the gap, this gap is the slit at an or obtuse angle in an acute angle with the rail bearing of trend, as shown in Figure 1, this structure makes when wheel passes through the slit, the zone of ground speed minimum always has quite a few all to be pressed on the orbital plane on the wheel rim, therefore height of car can remain on the original position, can not descend suddenly, impacts thereby eliminate, reduced the train driving noise, improved to take advantage of and done comfortableness.But the shortcoming of this utility model improvement project is, all rails all will all be changed, and workload is big, and secondly the acute angles of two 45 of rail degree will be out of shape under the weight of train soon, brings difficulty for maintenance in the future.At notice of authorization number is CN2338373Y, its name is called in the utility model patent of " a kind of improvement of rail joint structure ", a kind of improved technical scheme of rail joint structure has been proposed, a half of breach is promptly 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 indentation, there phase mutual connection, leaves the space between the rail of the two ends on elongated portion top.This technical solution reduces the DeGrain of train noise and vibrations.

The utility model content

The purpose of this utility model is to provide a kind of improved rail joint, can significantly improve noise and vibrations that existing train travels along the railway track and produces, helps the speed-raising of train, prolongs the application life of rail.

The purpose of this utility model is to realize like this, pull down the rail head clamping plate, part A, B, C, D along two rails that are connected downcut, then the part that is cut open is polished, rail can move, between two rails, form the vacancy of A, a B, C, D like this, then with splice bar handle diagram A, the B that processes, the vacancy part polishing of C, D.Splice bar polishing of the present utility model partly is positioned at the outside of rail, and its inboard raw sheet is motionless.The superior effect that improved rail joint described in the utility model had is:

1. the utility model construction is simple, only needs the rail part to be improved its technical solution easy construction practicality.

2. the utility model technical solution can change the force-bearing situation of contact point between wheel and the rail, helps reducing vibrations, further improves the speed of a motor vehicle.

Description of drawings

Fig. 1 to Fig. 3 is the contact condition schematic diagram between wheel of the prior art and the rail;

Fig. 4 part that to be improved rail joint described in the utility model cut along A, B, C, D adopts the schematic diagram behind the splice bar polishing;

Wherein:

The 1-rail;

2-splice bar clamping plate;

The 3-wheel;

The 4-splice bar;

5-splice bar set bolt.

The specific embodiment

Now introduce the specific embodiment that improved rail connects in conjunction with the appended accompanying drawing of the utility model.

As shown in Figure 4, at first take the rail head clamping plate apart along two rails 1 that are connected, and partly downcut along the ABCD in two rail 1 outsides that are connected, the longitudinal length of its incision is 140-145mm, with the ABCD part polishing of prefabricated splice bar 4, with splice bar clamping plate 2 and splice bar set bolt 5 that splice bar 4 is fixing with rail 1 more then with incision.

The utility model is not limited to the foregoing description, and for the professional in present technique field, any improvement that the utility model embodiment is made or change can not exceed the protection domain of spirit of the present utility model and claims.

Claims

1. an improved rail joint comprises: rail, rail head clamping plate, rail head clamping plate bolt, it is characterized in that: embed splice bar clamping plate (2) in two adjacent rail joint outsides by the indentation, there that sawing forms, adopt splice bar clamping plate set bolts (5) that described splice bar clamping plate (2) are fixed on the rail.

2. according to the described improved rail joint of claim 1, it is characterized in that; Along on the longitudinal length of rail, the short 4-6 millimeter of breach that described splice bar forms by sawing than two rail joint outsides.