CN215925451U

CN215925451U - Be applied to damping fastener in switch district

Info

Publication number: CN215925451U
Application number: CN202121255247.XU
Authority: CN
Inventors: 蔡灏; 过菲
Original assignee: Wuxi Qingshan Railway Equipment Co ltd
Current assignee: Wuxi Qingshan Railway Equipment Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-03-01
Anticipated expiration: 2031-06-07

Abstract

The utility model relates to the technical field of rail vibration reduction, in particular to a vibration reduction fastener applied to a turnout area, which can meet the requirement of pull-out resistance strength of a wooden sleeper or a synthetic sleeper, is convenient to adjust the prepressing of a vibration reduction base plate and simple in structure, and comprises a sleeper, wherein the sleeper is provided with a lower plate base plate, the vibration reduction base plate and an iron base plate, the iron base plate is provided with a rail, two sides of the rail are provided with elastic strips for fixing the rail, the elastic strips are arranged on T-shaped bolts and fixed through nuts, the iron base plate is one, the upper end surface of the sleeper is sequentially provided with the lower plate base plate, the vibration reduction base plate and the iron base plate from bottom to top, four corners of the lower plate base plate, the vibration reduction base plate and the iron base plate are all provided with through holes, a screw spike externally sleeved with a sleeve is arranged in each through hole, the outer peripheral surface of the top of the sleeve is provided with a convex ring with an outer diameter larger than the inner diameter of the through hole on the iron base plate, the lower end of the screw spike is screwed into the sleeper and the upper end of the washer for pressing the convex ring, the adjustment of the prepressing deformation formed by extruding the vibration reduction base plate by the iron base plate is realized by replacing different sleeves with different lengths.

Description

Be applied to damping fastener in switch district

Technical Field

The utility model relates to the technical field of rail vibration reduction, in particular to a vibration reduction fastener applied to a turnout area.

Background

During the rail laying process, a turnout is encountered, which is a line connection device for a rolling stock to pass from one track to another and is one of weak links of a track, and is usually laid in a large number at a station and a marshalling station. With the turnout, the passing capacity of the line can be fully exerted. Even if a single-track railway is used, a turnout is paved, and a section of fork line with the length larger than that of a train is constructed, so that the train can be split. Turnouts play an important role on railway lines. What use of switch department is wooden sleeper or synthetic sleeper, different with the cement sleeper of laying of straight line rail department, the resistance to plucking intensity is lower, if use with the damping fastener of straight line rail department, for example the patent application that publication number is CN112681025A, CN108457138A, it is connected with wooden sleeper or synthetic sleeper only to have a stud, can influence the installation stability of damping fastener, and damping backing plate pre-compaction deformation among the current damping fastener is realized by the spring on the stud, the pre-compaction volume is higher to the requirement of spring, the spring live time, and the iron tie plate has two, overall structure is more complicated.

Disclosure of Invention

In order to solve the problems that the existing vibration damping fastener cannot meet the requirements of the pull-out strength of a wooden sleeper or a synthetic sleeper, the prepressing of a vibration damping base plate is difficult to adjust, and the structure is complex, the utility model provides the vibration damping fastener applied to a turnout area, which can meet the requirements of the pull-out strength of the wooden sleeper or the synthetic sleeper, and is convenient to adjust the prepressing of the vibration damping base plate and simple in structure.

The technical scheme is as follows: a vibration damping fastener applied to a turnout area comprises a sleeper, wherein a lower plate, a vibration damping base plate and an iron base plate are arranged on the sleeper, the iron base plate is provided with a rail, elastic strips for fixing the rail are arranged on two sides of the rail, the elastic strips are arranged on T-shaped bolts and fixed through nuts, it is characterized in that the iron base plate is one, the lower plate base plate, the vibration damping base plate and the iron base plate are sequentially arranged on the upper end surface of the sleeper from bottom to top, through holes are arranged at four corners of the lower plate backing plate, the vibration damping backing plate and the iron backing plate, spiral spikes sleeved with sleeves are arranged in the through holes, the outer peripheral surface of the top of the sleeve is provided with a convex ring with the outer diameter larger than the inner diameter of the through hole on the iron backing plate, the lower end of the spiral spike is screwed into the sleeper, the upper end of the spiral spike is provided with a gasket for pressing the convex ring, the length of the spiral spike is changed, the sleeve is different in length, the iron base plate extrudes, and the pre-pressing deformation formed by the vibration reduction base plate is adjusted.

The vibration damping base plate is further characterized in that the size of a through hole in the vibration damping base plate is larger than that of a through hole in the iron base plate; the positioning sleeve ring is positioned on the back surface of the iron base plate, and a through hole of the iron base plate is provided with a positioning sleeve ring matched with the through hole on the vibration reduction base plate;

an intermediate pressing plate is arranged between the elastic strip and the rail;

the pressing end of the elastic strip is in plane contact with the middle pressing plate;

the sleeper is a wood sleeper or a synthetic sleeper.

After the device is adopted, the original two stud bolts at two sides are changed into four screw track nails for fixation, the pulling resistance strength is greatly increased, the fixation requirement is met, the number of the iron base plates is reduced to one, the structure is simple, the pre-pressing deformation adjustment of the vibration reduction base plate is realized by the length of the sleeve, the depth of the lower end of the screw track nail screwed into the sleeper is increased when the length of the sleeve is short, the pre-pressing deformation is large, otherwise, the pre-pressing deformation is small, and the adjustment is simple and reliable.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of an underfloor pad;

FIG. 4 is a schematic view of a vibration damping shim plate;

fig. 5 is a schematic view of an iron shim plate.

Detailed Description

Referring to fig. 1, 2, 3, 4 and 5, a vibration damping fastener applied to a turnout area comprises a sleeper 1, wherein the sleeper 1 is a wooden sleeper or a synthetic sleeper, the synthetic sleeper is mainly made of resin materials, a lower plate backing plate 2, a vibration damping backing plate 3 and an iron backing plate 4 are sequentially arranged on the upper end surface of the sleeper 1 from bottom to top, a rail 5 is arranged on the iron backing plate 4, elastic strips 6 for fixing the rail 5 are arranged on two sides of the rail 5, the elastic strips 6 are arranged on a T-shaped bolt 7 and are fixed through nuts 15, the iron backing plate 4 only needs to be one, through holes 8 are respectively arranged at four corners of the lower plate backing plate 2, the vibration damping backing plate 3 and the iron backing plate 4, a spiral spike 10 externally sleeved with a sleeve 9 is arranged in the through hole 8, a convex ring 11 with the outer diameter larger than the inner diameter of the through hole 8 on the iron backing plate 4 is arranged on the outer peripheral surface of the top of the sleeve 9, the lower end of the spiral spike 10 is screwed into the sleeper 1, and a gasket 12 for pressing the convex ring 11 is arranged at the upper end, the sleeves 9 with different lengths are replaced to realize the adjustment of the pre-pressing deformation formed by the iron backing plate 4 extruding the vibration damping backing plate 3. When sleeve 9 length ratio is short, then the degree of depth grow of screw spike 10 lower extreme screw in sleeper 1, the distance grow that iron tie plate 4 can push down in the past to make 3 pre-compaction deformations of damping backing plate grow, otherwise sleeve 9 length ratio is long, then the degree of depth of screw spike 10 lower extreme screw in sleeper 1 shortens, and the distance that iron tie plate 4 can push down in the past diminishes, thereby makes 3 pre-compaction deformations of damping backing plate diminish.

The size of the through hole 8 on the vibration damping backing plate 3 is larger than that of the through hole 8 on the iron backing plate 4; the positioning sleeve ring 13 which is matched with the through hole 8 on the vibration reduction backing plate 3 is arranged at the through hole 8 of the iron backing plate 4 and plays a role in fixing the position of the vibration reduction backing plate 3.

An intermediate pressing plate 14 is arranged between the elastic strip 6 and the rail 5, and the pressing end of the elastic strip 6 is in plane contact with the intermediate pressing plate 14, so that the contact area is increased, and the fixing reliability of the rail 5 is further ensured.

Claims

1. The utility model provides a be applied to damping fastener in switch district, it includes the sleeper, be provided with board lower bolster, damping backing plate, iron tie plate on the sleeper, install the rail on the iron tie plate, the rail both sides are provided with fixedly the bullet strip of rail, it is fixed through the nut on the T shape bolt of bullet strip installation, a serial communication port, the iron tie plate is one, the sleeper up end is provided with from supreme in order down board lower bolster, damping backing plate, iron tie plate, the through-hole has all been seted up to four angles departments of board lower bolster, damping backing plate, iron tie plate, be provided with the telescopic screw spike of outside suit in the through-hole, sleeve top outer peripheral face is provided with the external diameter and is greater than the bulge loop of through-hole internal diameter on the iron tie plate, screw spike lower extreme screw in and be provided with in the sleeper on the upper end push down the packing ring of bulge loop, it is different to change length the different realization of sleeve the iron tie plate extrusion the adjustment of the pre-compaction deflection that the damping backing plate formed .

2. The damping fastener applied to turnout zones according to claim 1, wherein the size of the through hole on the damping backing plate is larger than that of the through hole on the iron backing plate; and the positioning sleeve ring is positioned on the back surface of the iron base plate, and the through hole of the iron base plate is provided with a positioning sleeve ring matched with the through hole on the vibration reduction base plate.

3. The damping clip of claim 1, wherein an intermediate clamp is disposed between the spring bar and the rail.

4. The damping fastener for switch area as claimed in claim 1, wherein the pressing end of the elastic strip is in plane contact with the intermediate pressing plate.

5. The damping fastener applied to the turnout zone according to claim 1, wherein the sleeper is a wooden sleeper or a composite sleeper.