CN219690206U

CN219690206U - Ballastless track fastener

Info

Publication number: CN219690206U
Application number: CN202320785645.5U
Authority: CN
Inventors: 杜建群; 方金; 杜俊; 杜响; 杜锐; 朱丹
Original assignee: Hubei Muzhijun Railway Engineering Co ltd
Current assignee: Hubei Muzhijun Railway Engineering Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-09-15
Anticipated expiration: 2033-04-11

Abstract

The utility model belongs to the technical field of track fasteners, and particularly relates to a ballastless track fastener, which comprises a sleeper and a steel rail positioned above the sleeper, wherein an insulating buffer cushion plate, a damping elastic cushion plate, an iron cushion plate, an heightening elastic cushion plate and a positioning cushion plate are sequentially arranged between the sleeper and the steel rail from bottom to top; the embedded sleeves are embedded into the two ends of the upper end face of the sleeper, and the anchoring bolts are connected with the embedded sleeves in an internal threaded mode. The defect of the prior art is overcome, the connection between the fastener and the steel rail is damped and buffered through the multilayer backing plate, the impact transmitted by the steel rail is absorbed, the fastener is prevented from bearing excessive load, the damping effect is achieved, and the noise generated by the track is reduced.

Description

Ballastless track fastener

Technical Field

The utility model belongs to the technical field of track fasteners, and particularly relates to a ballastless track fastener.

Background

Along with the rapid development of high-speed railways and heavy-load railways, the transverse load of trains is larger and larger, and higher requirements are put forward on the fastener systems in the rail transit, so that the fastener systems are required to bear larger transverse loads, the service lives of the fastener systems are influenced, and certain potential safety hazards exist.

Disclosure of Invention

The utility model aims to provide a ballastless track fastener, which overcomes the defects of the prior art, and the connection between the fastener and a steel rail is damped and buffered through a plurality of layers of backing plates, so that the impact transmitted by the steel rail is absorbed, the fastener is prevented from bearing excessive load, the damping effect is achieved, and the noise generated by a track is reduced.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

the ballastless track fastener comprises a sleeper and a steel rail positioned above the sleeper, wherein an insulating buffer cushion plate, a damping elastic cushion plate, an iron cushion plate, an heightening elastic cushion plate and a positioning cushion plate are sequentially arranged between the sleeper and the steel rail from bottom to top, insulating sheets of L-shaped structures are arranged on two sides of the steel rail, a fastener main body of an arc-shaped structure is abutted to the upper part of the iron cushion plate and the insulating sheets, two T-shaped bolts in the vertical direction are arranged on the iron cushion plate in a penetrating manner, and the T-shaped bolts compress the fastener main body on the insulating sheets;

the upper end face both ends of sleeper all inlay and are equipped with pre-buried sleeve pipe, and pre-buried sleeve pipe internal thread connection has anchor bolt, anchor bolt's top runs through insulating buffer backing plate, shock attenuation elastic backing plate and iron backing plate in proper order, and closely laminates the up end of iron backing plate through buffer assembly.

Further, the outside movable sleeve of anchor bolt is equipped with gasket and lower gasket, down the gasket closely laminates the up end at the iron backing plate, be provided with the spring washer between gasket and the lower gasket.

Further, the anchor bolt comprises a nut and an anchor rod, the top end of the anchor rod is fixedly connected with the nut, threads are arranged on the outer side of a part of the anchor rod extending to the embedded sleeve, and one side of the anchor rod is connected with the embedded sleeve through a positioning assembly.

Further, locating component is including seting up the mounting groove in stock one side, grafting fixture block in the mounting groove and connect the coupling spring between fixture block and mounting groove lateral wall, the draw-in groove has been seted up on the pre-buried sleeve's the lateral wall, the fixture block extends the mounting groove outside, and the block is in the draw-in groove.

Further, a metal gasket is arranged on one side, far away from the anchor rod, of the clamping groove, and the clamping block is made of metal.

Further, the fixture block is protruding font structure, the large end of fixture block is located the mounting groove, and the both ends and the mounting groove sliding connection of fixture block.

Further, the top end of the embedded sleeve is provided with an opening with a large aperture, an annular sealing ring is movably arranged in the opening, and two sides of the sealing ring are respectively and tightly attached to the embedded sleeve and the anchor rod.

Compared with the prior art, the utility model has the following beneficial effects:

according to the ballastless track fastener, the connection between the fastener and the steel rail is subjected to damping and buffering through the multilayer base plate, so that the impact transmitted by the steel rail is absorbed, the fastener is prevented from bearing excessive load, the damping effect is achieved, and the noise generated by a track is reduced; the connection between the embedded sleeve and the anchor bolt is determined through the positioning assembly, the stability is improved by fixing the position of the anchor bolt, and meanwhile, the anchor bolt is prevented from sliding, so that the operation is convenient.

Drawings

Fig. 1 is a schematic structural view of a ballastless track fastener.

Fig. 2 is a schematic structural view of an anchor bolt in a ballastless track fastener.

Fig. 3 is an enlarged schematic view of a ballastless track fastener at a.

In the figure: 1. sleeper; 2. an insulating buffer backing plate; 3. a damping elastic backing plate; 4. an iron backing plate; 5. an heightening elastic backing plate; 6. positioning a backing plate; 7. an anchor bolt; 71. a screw cap; 72. a bolt; 8. a fastener body; 9. a T-shaped bolt; 10. an insulating sheet; 11. embedding a sleeve; 12. a gasket is arranged on the upper part; 13. a spring washer; 14. a lower gasket; 15. a seal ring; 16. a clamping groove; 17. a metal gasket; 18. a mounting groove; 19. a clamping block; 20. a connecting spring; 21. a rail.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, the ballastless track fastener comprises a sleeper 1 and a steel rail 21 positioned above the sleeper 1, wherein an insulating buffer cushion plate 2, a damping elastic cushion plate 3, an iron cushion plate 4, an heightening elastic cushion plate 5 and a positioning cushion plate 6 are sequentially arranged between the sleeper 1 and the steel rail 21 from bottom to top, insulating sheets 10 with L-shaped structures are arranged on two sides of the steel rail 21, a fastener main body 8 with an arc-shaped structure is abutted to the upper part of the iron cushion plate 4 and the insulating sheets 10, two T-shaped bolts in the vertical direction are arranged on the iron cushion plate 4 in a penetrating manner, and the T-shaped bolts 9 compress the fastener main body 8 on the insulating sheets 10;

the embedded sleeve 11 is embedded at two ends of the upper end face of the sleeper 1, the anchoring bolt 7 is connected with the embedded sleeve 11 in a threaded manner, the top end of the anchoring bolt 7 sequentially penetrates through the insulating buffer backing plate 2, the damping elastic backing plate 3 and the iron backing plate 4, and the upper end face of the iron backing plate 4 is tightly attached to the upper end face through the buffer assembly.

For the soft connection between the anchor bolt 7 and the iron backing plate 4, an upper gasket 12 and a lower gasket 14 are movably sleeved on the outer side of the anchor bolt 7, the lower gasket 14 is tightly attached to the upper end face of the iron backing plate 4, and a spring washer 13 is arranged between the upper gasket 12 and the lower gasket 14.

In order to fix the anchor bolt 7, the anchor bolt 7 comprises a nut 71 and an anchor rod 72, the top end of the anchor rod 72 is fixedly connected with the nut 71, threads are arranged on the outer side of the portion, extending to the embedded sleeve 11, of the anchor rod 72, and one side of the anchor rod 72 is connected with the embedded sleeve 11 through a positioning assembly.

In order to determine the position of the anchor bolt 7, the positioning assembly comprises a mounting groove 18 formed in one side of the anchor rod 72, a clamping block 19 inserted into the mounting groove 18 and a connecting spring 20 connected between the clamping block 19 and the side wall of the mounting groove 18, wherein a clamping groove 16 is formed in the side wall of the embedded sleeve 11, and the clamping block 19 extends out of the outer side of the mounting groove 18 and is clamped in the clamping groove 16.

For convenience in determining the connection, a metal washer 17 is mounted on the side of the clamping groove 16 away from the anchor rod 72, and the clamping block 19 is made of metal.

In order to improve stability, the clamping block 19 is in a convex structure, the large end of the clamping block 19 is positioned in the mounting groove 18, and two ends of the clamping block 19 are in sliding connection with the mounting groove 18.

In order to buffer the transverse impact of the anchor bolt 7, the top end of the embedded sleeve 11 is provided with an opening with a large aperture, an annular sealing ring 15 is movably arranged in the opening, and two sides of the sealing ring 15 are respectively tightly attached to the embedded sleeve 11 and the anchor rod 72.

In summary, when the ballastless track fastener is used, firstly, the embedded sleeve 11 is embedded above the sleeper 1, then the sealing ring 15 is placed in the embedded sleeve 11, then the insulating buffer cushion plate 2, the damping elastic cushion plate 3, the iron cushion plate 4, the heightening elastic cushion plate 5 and the positioning cushion plate 6 are sequentially placed on the sleeper 1, the steel rail 21 is transferred to the positioning cushion plate 6, then the insulating sheets 10 are arranged on two sides, and the fastener main body 8 is pressed through the T-shaped bolts 9; the anchoring bolt 7 extends into the embedded sleeve 11 and is fastened through threaded connection; when the anchoring bolt 7 is connected with the embedded sleeve 11, the mounting groove 18 corresponds to the clamping groove 16, the clamping block 19 enters the clamping groove 16 under the driving of the elastic force of the connecting spring 20 and impacts the metal gasket 17, and a metal impact sound is sent to prompt that the anchoring bolt 7 is in place.

In the using process, impact in the vertical direction is buffered through the insulating buffer cushion plate 2, the damping elastic cushion plate 3, the iron cushion plate 4, the heightening elastic cushion plate 5 and the positioning cushion plate 6; the position of the anchor screw is fixed by the cooperation of the clamping blocks 19 and the clamping grooves 16, and meanwhile, the impact force is buffered in the horizontal direction by the arrangement of the sealing ring 15, so that the service time of the fastener is prolonged.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a ballastless track fastener, includes sleeper (1), is located rail (21) of sleeper (1) top, its characterized in that: an insulating buffer base plate (2), a damping elastic base plate (3), an iron base plate (4), an heightening elastic base plate (5) and a positioning base plate (6) are sequentially arranged between the sleeper (1) and the steel rail (21) from bottom to top, insulating sheets (10) with L-shaped structures are arranged on two sides of the steel rail (21), a fastener main body (8) with an arc-shaped structure is abutted to the upper parts of the iron base plate (4) and the insulating sheets (10), two T-shaped bolts in the vertical direction are arranged on the iron base plate (4) in a penetrating mode, and the T-shaped bolts (9) compress the fastener main body (8) on the insulating sheets (10);

embedded sleeves (11) are embedded at two ends of the upper end face of the sleeper (1), anchor bolts (7) are connected with the embedded sleeves (11) in a threaded mode, the top ends of the anchor bolts (7) sequentially penetrate through the insulating buffer base plate (2), the damping elastic base plate (3) and the iron base plate (4), and the upper end face of the iron base plate (4) is tightly attached to the upper end face through a buffer assembly;

the anchoring bolt (7) comprises a screw cap (71) and an anchor rod (72), the top end of the anchor rod (72) is fixedly connected with the screw cap (71), threads are arranged on the outer side of the part, extending to the embedded sleeve (11), of the anchor rod (72), and one side of the anchor rod (72) is connected with the embedded sleeve (11) through a positioning assembly;

the positioning assembly comprises a mounting groove (18) formed in one side of the anchor rod (72), a clamping block (19) inserted into the mounting groove (18) and a connecting spring (20) connected between the clamping block (19) and the side wall of the mounting groove (18), a clamping groove (16) is formed in the side wall of the embedded sleeve (11), and the clamping block (19) extends out of the outer side of the mounting groove (18) and is clamped in the clamping groove (16).

2. The ballastless track fastener of claim 1, wherein: the outer side of the anchor bolt (7) is movably sleeved with an upper gasket (12) and a lower gasket (14), the lower gasket (14) is tightly attached to the upper end face of the iron base plate (4), and a spring washer (13) is arranged between the upper gasket (12) and the lower gasket (14).

3. The ballastless track fastener of claim 1, wherein: a metal gasket (17) is arranged on one side, far away from the anchor rod (72), of the clamping groove (16), and the clamping block (19) is made of metal.

4. The ballastless track fastener of claim 1, wherein: the fixture block (19) is of a convex structure, the large end of the fixture block (19) is located in the mounting groove (18), and two ends of the fixture block (19) are in sliding connection with the mounting groove (18).

5. The ballastless track fastener of claim 1, wherein: the top end of the embedded sleeve (11) is provided with an opening with a large aperture, an annular sealing ring (15) is movably arranged in the opening, and two sides of the sealing ring (15) are respectively tightly attached to the embedded sleeve (11) and the anchor rod (72).