CN112442925A

CN112442925A - Track elastic strip and track fastener assembly

Info

Publication number: CN112442925A
Application number: CN202011602830.3A
Authority: CN
Inventors: 米建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-03-05
Also published as: WO2022143681A1

Abstract

The utility model aims at providing a track bullet strip and track fastener subassembly, specifically be equipped with intermeshing's tooth between the contact surface of track fastener subassembly, prevent through the tooth of meshing that it is not hard up between each part of track fastener subassembly, the tooth be one-way tooth, provide the installation application method of track fastener subassembly simultaneously.

Description

Track elastic strip and track fastener assembly

Technical Field

The application relates to the field of rail fasteners, in particular to a rail elastic strip and a rail fastener assembly.

Background

The rail transit system uses vehicles to run on a fixed rail, and has the advantages of high operation speed, large carrying capacity, small influence on environment, low energy consumption, safety, city space expansion and the like, the rail of the rail transit system is the basis of vehicle running, the rail can be safely and reliably fixed to ensure the normal running of the vehicles, the rail fastening needs to use the rail fastening, the rail fastening needs to be used for many years without loosening, one or two gaskets are used and arranged between an elastic strip and a bolt in the prior art, two grooves are arranged on the gaskets and matched with the elastic strip, but the elastic strip still slides relative to the rail, namely the tower barrel and the rail loosen, the technical scheme of the prior rail fastening component still has the problems of bolt loosening and elastic strip loosening, and the inspection and maintenance are frequently needed, so the safer and more reliable fastening component needs to be designed, saving manpower and material resources and reducing danger.

Disclosure of Invention

The utility model provides an aim at provides a track bullet strip and track fastener subassembly specifically is equipped with intermeshing's tooth between the contact surface of track fastener subassembly, prevents through the tooth of meshing that it is not hard up between each part of track fastener subassembly, the tooth be one-way tooth that surpasss, prevent to become flexible between each part of track fastener subassembly, influence the track fixed with safety, provide the installation application method of track fastener subassembly simultaneously.

In order to achieve the purpose, the method is realized by the following technical scheme: the utility model provides a track bullet strip for pass through the bolt withhold with the track and fix on the track basis, bullet strip is equipped with the tooth in the position of bullet strip and bolt contact, the tooth is one-way tooth that surpasss, the tooth is the setting of the shape of dispersing around to same centre of a circle.

A rail fastener assembly comprises a bolt and an elastic strip, wherein the bolt compresses the elastic strip, the elastic strip fastens and fixes a rail on a rail foundation, one-way teeth which are meshed with each other are arranged between the contact positions of the elastic strip and the bolt, the one-way teeth on the elastic strip are arranged in a shape of diverging from the same circle center to the periphery, the one-way teeth on the bolt are arranged in a shape of diverging from the same circle center to the periphery, the one-way teeth are arranged on the bolt in a circle in a surrounding way, the elastic strip and the one-way teeth on the bolt are mutually matched and meshed, the position of the bolt, which is contacted with the elastic strip, is arranged on a screw head or a screw cap of the bolt, the screw head or the screw cap is provided with a flange, the one-way teeth are arranged on the bolt in a circle, a washer can be arranged between the bolt and the elastic strip, meshed one-way teeth are arranged between the washer and the contact surface of the bolt, and meshed one-way teeth are arranged between the washer and the contact surface of the elastic strip.

The utility model provides a track bullet strip, track bullet strip is the key part of track traffic structure for connect track and insulating block, track basis, track and bolt etc. can bear train track and resist vertical and horizontal load, improves track system's elasticity and track system's structural connection reliability, and track bullet strip has multiple shape, for example current widely used has W type bullet strip, has the orbital elastic arm of force of withholding on W type bullet strip, and with the U-shaped portion of bolt contact U-shaped portion sets up the tooth, preferably sets up to one-way tooth, can prevent that the bolt from becoming flexible.

A track fastener component comprises a bolt and an elastic strip, wherein the bolt fixes a track by pressing the elastic strip, the bolt comprises a screw and a screw head or a nut, in the application of an actual track fastener, the track bolt comprises the screw and the screw head, the screw head is arranged at one end of the screw, the screw is provided with a thread, the screw is screwed into a reserved hole of a sleeper below a track foundation, the elastic strip is pressed by the screw head, and the purpose of fastening and fixing the track is realized; one arrangement is that the track bolt comprises a screw rod and a nut, the embedded end of the screw rod is embedded downwards and fixed in the track foundation sleeper, the screw rod is upwards, the screw rod is provided with a thread, the nut is screwed on the screw rod thread to compress the elastic strip downwards and fix the track, the structure of the elastic strip is generally in a bending shape, the bending shape allows the elastic strip to have certain deformability, after the elastic strip is compressed by the bolt, the pressure can be continuously applied to the track, the fixed track is free from moving vibration and the like, one side of the bolt facing the elastic strip is provided with teeth, the bolt comprises a bolt head or a nut, the teeth of the bolt head are arranged on the side of the bolt head facing the screw rod, the nut is arranged on the side of the nut facing the elastic strip, the contact surface part of the elastic strip and the bolt is also provided with teeth, only one part of the elastic strip is contacted with the bolt in the fastening effect of the track fastener component, and only the teeth, the bolt and the elastic strip are mutually meshed teeth which can be in various shapes, can be in a plurality of small cones, the small cones between the contact surfaces are mutually convexly and concavely meshed, can be straight lines radiating outwards along the axis of the bolt in the radial direction, can be involute arcs or straight lines, can be in a step shape, the preferable teeth between the bolt and the elastic strip are one-way teeth for preventing the bolt from loosening, the one-way overrunning one-way teeth can prevent the bolt from reversing and loosening to the maximum extent, a gasket can be arranged between the bolt and the elastic strip, the gasket can increase the contact area and reduce the pressure of each contact surface, under the condition that the gasket is arranged, the mutually meshed teeth, preferably the one-way teeth, are arranged between the gasket and the surfaces of the bolt and the elastic strip, the bolt, the gasket and the elastic strip can be mutually restrained and fixed through the arrangement, and the expansion flanges are arranged on the screw heads or nuts of some bolts, the flange is arranged on the bolt, so that the contact area among all parts can be increased, the stress pressure is reduced, and the contact friction force is increased.

The utility model provides an installation application method of track fastener subassembly is, use the instrument to push down the elastic strip to the position of setting for earlier, according to the moment of torsion of setting for screw bolt compress tightly the elastic strip, then release and compress tightly the instrument, can reduce the friction injury between the contact surface of bolt and elastic strip through such installation as this, the installation application method of a track fastener subassembly of this application is, the track fastener subassembly synchronous mounting of same horizontal both sides of track, synchronous mounting is the bolt of a track horizontal both sides and screws the step unanimous, the progress and the strength of screwing are basically the same, through such installation method, can make track both sides balance atress, prevent the track to incline towards one side of installing the track fastener subassembly at first, the installation application method of a track fastener subassembly is, the horizontal all track fastener subassemblies of two tracks that same rail vehicle traveles are synchronous installation, synchronous installation is exactly that the pace that two horizontal bolts of track were screwed is unanimous, and the progress and the strength of screwing are the same basically, through such mounting method, can make the fixed atress balance of being connected of track that same rail vehicle went and sleeper, prevents the unbalanced shift position of track atress, the installation application method of a track fastener subassembly of this application is applicable to the installation use of current track fastener equally.

The beneficial effect of this application lies in: adopt this application a track marble and track fastener subassembly because be equipped with on the bullet strip the tooth, the tooth be one-way tooth to for the setting of the shape is dispersed in same centre of a circle, with the one-way tooth cooperation on the bolt, can play the effect: firstly, the bolt cannot be loosened due to reverse rotation because of unidirectional teeth which can only be overtaken unidirectionally between the bolt and the elastic strip, secondly, the elastic strip cannot be loosened due to the bolt, thirdly, because the arranged teeth are unidirectional teeth with the same circle center, the position between the elastic strip and the bolt cannot be moved, and the position of the bolt on a track foundation is fixed, so that the elastic strip cannot be moved away from the track, and the risk of track loosening caused by position change between the elastic strip and the track is prevented; the installation and use method has the advantages of convenience and reliability, is simple to manufacture, can be conveniently matched with various existing fastening methods and devices for use, prevents the rail fastener component from loosening, and realizes the guarantee of safe and stable operation of the rail transit system.

Drawings

FIG. 1 is a schematic top view of a rail spring having the subject application;

FIG. 2 is a side schematic view of a track spring of the present application;

FIG. 3 is a side schematic view of a rail clip assembly of the present application;

in the figure, 1 is a U-shaped part of the elastic strip, 2 is an elastic arm of the elastic strip, 3 is a one-way tooth, 4 is a screw head, and 5 is a flange.

Detailed Description

The following specific embodiment that combines further explains the application, and fig. 1 is a track bullet strip top surface schematic diagram of the application, and 1 is bullet strip U-shaped portion in the picture, and 2 is bullet strip elasticity arm, and 3 are one-way tooth, and one-way tooth 3 sets up the top surface at bullet strip U-shaped portion 1 in the picture, the shape setting is dispersed with the centre of a circle to one-way tooth, and two parts one-way tooth 3 surmount opposite direction on bullet strip U-shaped portion 1, and the track is withheld to the elasticity arm 2, and this picture is the most commonly used bullet strip shape of prior art, only is used for explaining the theory of structure of the application, and multiple bullet strip shape can use the structure of the application in addition.

FIG. 2 is a side schematic view of a track spring of the present application; in the figure 1 is bullet strip U-shaped portion, and 2 are bullet strip elastic force arm, and 3 are one-way tooth, can see this application from this figure one-way tooth structure, be equipped with two sets ofly on the bullet strip one-way tooth 3, its one-way tooth 3's setting surmounts opposite direction, is applicable to with the bolt rotation cooperation, and the end direction of bullet arm 2 is outside the bullet strip in this figure, also can be in the bullet strip of face, does not influence the explanation of this application and uses.

Fig. 3 is a schematic side view of a rail fastener component according to the present application, in which fig. 1 is a spring strip U-shaped portion, fig. 4 is a screw head, fig. 5 is a flange, in which the spring strip U-shaped portion 1 and the bolt flange 5 are both provided with one-way teeth, the two one-way teeth are engaged with each other in a matching manner, the one-way teeth mutually exceed each other in the bolt fastening process, after fastening is completed, the bolt and the spring strip are locked with each other and cannot rotate backwards, when the bolt needs to be reversed and disassembled, the spring strip must be pressed down to be separated from the bolt, and the separated two parts exceed the one-way teeth to be reversed, the same structural principle can be implemented on a nut of an embedded bolt of another rail fixing method, that is, the embedded bolt is inside a rail foundation, the screw of the bolt is provided with a thread, the nut compresses the spring strip through.

It should be understood that the precession described in the present application includes clockwise and counterclockwise, the drawings and the description of the present application only take clockwise as an example, and of course, the drawings and the description can also be set counterclockwise, and those skilled in the art can understand the implementation of the related contents, and do not limit the technical solution of the present application.

The present application is described herein by way of selected embodiments only, and the track springs can have a wide variety of shapes and combinations, and the present application can be combined with various structures such as shims, etc., and it should be understood that the above-described embodiments are intended to illustrate and not to limit the present application.

Claims

1. The utility model provides a track bullet strip for pass through the bolt withhold the track and fix on the track basis its characterized in that: the elastic strip is provided with teeth at the contact position of the elastic strip and the bolt.

2. The spring bar of claim 1, wherein: the teeth are arranged in a shape of diverging towards the periphery from the same circle center.

3. The spring bar of claim 1, wherein: the teeth are unidirectional teeth.

4. The spring bar of claim 1, wherein: the elastic strip is provided with two positions which are contacted with the bolt, and the directions of the unidirectional teeth at the two positions are opposite.

5. The utility model provides a track fastener subassembly, includes bolt and bullet strip, and the bolt compresses tightly bullet strip, and bullet strip withholds trapped orbit in track basis, its characterized in that: and mutually meshed one-way teeth are arranged between the contact positions of the elastic strips and the bolts.

6. A rail clip assembly according to claim 5, wherein: the one-way teeth are arranged in a shape of diverging towards the periphery from the same circle center.

7. A rail clip assembly according to claim 5, wherein: the position of the bolt contacting with the elastic strip is arranged on a screw head or a screw cap of the bolt.

8. A rail clip assembly according to claim 7, wherein: the screw head or the screw cap is provided with a flange.

9. A rail clip assembly according to claim 5, wherein: a washer is arranged between the bolt and the elastic strip, meshed one-way teeth are arranged between the washer and the contact surface of the bolt, and meshed one-way teeth are arranged between the washer and the contact surface of the elastic strip.

10. A rail clip assembly according to claim 5, wherein: and a gasket is arranged between the elastic strip and the rail foundation.