CN201077934Y

CN201077934Y - Ballast track fastener

Info

Publication number: CN201077934Y
Application number: CNU2007201729936U
Authority: CN
Inventors: 廖春芳
Original assignee: Beijing Bailuning Science & Technology Co Ltd
Current assignee: Beijing Bailuning Science & Technology Co Ltd
Priority date: 2007-09-06
Filing date: 2007-09-06
Publication date: 2008-06-25
Anticipated expiration: 2017-09-06

Abstract

The utility model relates to a fastener for a ballasted rail, which comprises an embedded part, elastic rods, insulation gauge blocks, and a rubber backing board. The embedded part is arranged in a concrete sleeper, the rubber backing board is arranged between the steel rail and the sleeper, the insulation gauge blocks are arranged among the steel rail, the embedded part and the elastic rod, the elastic rods are arranged on the insulation gauge blocks and the embedded part, the elastic rod presents e-shaped, wherein the intermediate limbs of the elastic rods are fixed in the embedded part, and the fastening limbs of the elastic rods are pressed on the insulation gauge blocks, wherein the bottom area of the embedded part embedded in the sleeper is larger than the sectional area of the shaft above the bottom. The elastic rod material is 60Si<2>MnA, and the axial line at the top part of the transitional limb between the intermediate limb and the fastening limb adopts a concave arc line. The anti-pulling force of the embedded part of the utility model is large, and the fastening force and elastic stroke of the elastic rod are large.

Description

The ballasted track fastener

Technical field

The utility model relates to a kind of rail fastening, and what refer to especially to use on a kind of high speed railway track has quarrel (gravel bed system an is arranged) rail fastening.

Background technology

Connector common name fastener between rail and the sleeper, as Figure 1A, Figure 1B is depicted as existing III type elastic bar fastener structural representation and vertical view thereof, it comprises built-in fitting 1 ', spring 2 ', rubber mat plate 3 ', and Insulation rail distance keeper 4 ', built-in fitting 1 ' is located in the concrete sleeper 5 ', between rail 6 ' and sleeper 5 ', be provided with rubber mat plate 3 ', between built-in fitting 1 ' and rail 6 ', be provided with Insulation rail distance keeper 4 ', on Insulation rail distance keeper 4 ' and built-in fitting 1 ', be provided with spring 2 ', spring 2 ' is an e shape, in conjunction with Fig. 2 A, the front view of the existing e shape spring shown in Fig. 2 B and Fig. 2 C, lateral view and vertical view, this e shape spring is by middle limb 21 ', withholding limb 22 ' and the transition limb 23 ' one between it constitutes, wherein limb 21 ' is fixed in the built-in fitting 1 ', it is withheld limb 22 ' and withholds on Insulation rail distance keeper, middle limb 21 ' and the transition limb of withholding between the limb 22 ' 23 ' are that spring " e " shape head axes is a straight line, and this elastic bar fastener in use has the following disadvantages:

1, because the cast iron built-in fitting 1 ' bottom that is located in the concrete sleeper is little, so its uplift resistance is little, is easy to extract in concrete sleeper.

2, the spring material is 60Si ₂Mn and structure design are unreasonable, and its buckle press is little, and it is little to play journey, and it is bigger to be prone to fracture or permanent set.

3, spring discontinuity, local pressure are put the stressed excessive damage that causes.

The utility model content

The purpose of this utility model is to provide a kind of ballasted track fastener, and the uplift resistance of its built-in fitting is big and buckle press and bullet journey spring are big.

In order to realize such scheme, technical solution of the present utility model is: a kind of ballasted track fastener, comprise built-in fitting, spring, Insulation rail distance keeper and rubber mat plate, built-in fitting is located in the concrete sleeper, be provided with rubber mat plate between rail and the sleeper, at rail, built-in fitting, be provided with Insulation rail distance keeper between spring and the rail, on described Insulation rail distance keeper and built-in fitting, be provided with spring, described spring is an e shape, wherein limb is fixed in the built-in fitting, it is withheld limb and withholds on Insulation rail distance keeper, and the big shaft section thereon of bottom area that wherein said built-in fitting is imbedded in the sleeper is long-pending, and described spring material is 60Si ₂MnA, wherein the limb and the transition limb top axis of withholding between the limb are a spill camber line.

The utility model ballasted track fastener, the angle of wherein said spring upper end camber line and horizontal plane is less than 10 degree.

The utility model ballasted track fastener, the long L of wherein said e shape spring is 107-113mm, and wide W is 103mm, and sagitta H is 62-66mm, and spring diameter of section D is 19.75-20.25mm.

After adopting such scheme, the utility model with built-in fitting imbed partial design in the sleeper be the bottom section area greater than section area above it, its uplift resistance is increased greatly, prevent that rail is pulled up; Spring redistributes the stress of each stress point of spring by to the certain radian of stressed limit design, more reasonable stress, the stress decrease of maximum stress point 10%, and the material of spring adopts the 60Si of high-quality ₂MnA, and the adjustment of length and sagitta increases spring elastic force, makes the buckle press of spring and plays journey and all improve greatly, more meets the operation condition of present bullet train.

Description of drawings

Figure 1A is existing ballasted track fastener structures schematic diagram;

Figure 1B is the schematic top plan view of Figure 1A;

Fig. 2 A looks schematic diagram for existing e shape spring master;

Fig. 2 B is existing e shape spring schematic side view;

Fig. 2 C is existing e shape spring schematic top plan view;

Fig. 3 A is the utility model ballasted track fastener structures schematic diagram;

Fig. 3 B is the schematic top plan view of Fig. 3 A;

Fig. 4 A is that the master of the utility model ballasted track fastening elastic rod looks schematic diagram;

Fig. 4 B is the schematic side view of the utility model ballasted track fastening elastic rod;

Fig. 4 C is the schematic top plan view of the utility model ballasted track fastening elastic rod.

The specific embodiment

As Fig. 3 A, the utility model ballasted track fastener structures schematic diagram and vertical view shown in Fig. 3 B, this fastener comprises built-in fitting 1, spring 2, Insulation rail distance keeper 3 and rubber mat plate 4, built-in fitting 1 is located in the concrete sleeper 5, it imbeds the big shaft section thereon of bottom area of the built-in fitting 1 in the sleeper 5, increased its uplift resistance, be provided with rubber mat plate 4 between rail 6 and the sleeper 5, between rail 6 and built-in fitting 1 and spring 2, be provided with Insulation rail distance keeper 3, Insulation rail distance keeper 3 is provided with e shape spring 2 with built-in fitting 1, in conjunction with Fig. 4 A, Fig. 4 B, the front view of the utility model ballasted track fastening elastic rod shown in Fig. 4 C, shown in lateral view and the vertical view, spring 2 is by middle limb 21, withhold limb 22 and transition limb 23 one between it and constitute e shape, middle limb 21 passes the hole on the built-in fitting and is fixed in the built-in fitting 1, withholding limb 22 withholds on Insulation rail distance keeper 3, this spring 2 long L are 110mm (as Fig. 4 C), wide W is 103mm (as Fig. 4 B), sagitta H is 64mm (as Fig. 4 A), spring diameter of section D is 20mm (as Fig. 4 C), the axis that is positioned at the transition limb 23 at e shape spring 2 tops is a spill camber line, this camber line horizontal length L1 is 36.9mm, the angle α of this camber line and horizontal linear is that the material of spring 2 adopts 60Si about 6 degree ₂MnA.

The utility model is designed to imbed built-in fitting bottom section area in the sleeper greater than section area above it with built-in fitting, and its uplift resistance is increased greatly, prevents that rail is pulled up; Spring redistributes the stress of each stress point of spring by to the certain radian of stressed limit design, more reasonable stress, the stress decrease of maximum stress point 10%, and the material of spring adopts the 60Si of high-quality ₂MnA, and the adjustment of length and sagitta increases spring elastic force, makes the buckle press of spring and plays journey and all improve greatly, more meets the operation condition of present bullet train.

All any modifications of within spirit of the present utility model, principle and design principle, being done, be equal to replacement, improvement etc., all be included in the utility model scope.

Claims

1. ballasted track fastener, comprise built-in fitting (1), spring (2), Insulation rail distance keeper (3) and rubber mat plate (4), built-in fitting (1) is located in the concrete sleeper (5), be provided with rubber mat plate (4) between rail (6) and the sleeper (5), in rail (6), built-in fitting (1), be provided with Insulation rail distance keeper (3) between spring (2) and the rail (6), on described Insulation rail distance keeper (3) and built-in fitting (1), be provided with spring (2), described spring (2) is an e shape, wherein limb (21) is fixed in the built-in fitting (1), it is withheld limb (22) and withholds on Insulation rail distance keeper, it is characterized in that: the big shaft section thereon of bottom area that described built-in fitting (1) is imbedded in the sleeper (5) is long-pending, and described spring (2) material is 60Si ₂MnA, wherein the limb (21) and transition limb (23) top axis of withholding between the limb (22) are-spill camber line.

2. ballasted track fastener according to claim 1 is characterized in that: the angle of described spring (2) upper end camber line and horizontal plane is less than 10 degree.

3. ballasted track fastener according to claim 2 is characterized in that: the long L of described e shape spring (2) is 107-113mm, and wide W is 103mm, and sagitta H is 62-66mm, and spring diameter of section D is 19.75-20.25mm.