CN-224199729-U - Damping fastener suitable for assembled structure

Abstract

The utility model belongs to the technical field of rail transit, and particularly relates to a vibration damping fastener suitable for an assembled structure, which comprises an iron base plate, an under-rail elastic pad, an under-plate elastic pad, a locking upright post, a nylon bushing, a locking cover plate, a spike and an elastic strip, wherein the locking upright post is vertically arranged in through holes on the iron base plate and the under-plate elastic pad, the lower end surface of the locking upright post is tightly pressed on a rail foundation, and the upper end surface of the locking upright post is combined with the locking cover plate; the nylon bushing is sleeved on the periphery of the locking upright post, the locking cover plate is provided with a through hole, the locking upright post is provided with a slotted hole, the track spike vertically passes through the through hole on the locking cover plate and the slotted hole and then the vibration damping fastener is fixed on the support upright post of the ballastless track structure, the locking cover plate can move relative to the locking upright post, and the relative position of the track spike in the slotted hole is adjusted, so that the adjustment of the track gauge is realized. The vibration damping fastener has the advantages of small number of components, small total weight of the fastener, low manufacturing cost, good vibration damping effect and convenient use.

Inventors

• CAO YUZE
• ZHANG JINGYU
• LIU QIANG
• JIN RUIJIE
• LI QIANG
• HUO XINWEI
• TIAN WEIJIAN
• Fu Guiwang
• LIU YONG
• HUANG HAIBIN
• LI JIAN
• ZHANG CHUNLEI
• FAN XIAOZHEN
• LI JIANBIN
• WANG SHUWEI
• GOU PENGCHENG
• YANG BAOFENG
• BAO ZIQIANG
• CHEN DUNCHANG
• XI XIAOMING

Assignees

• 中国铁路设计集团有限公司

Dates

Publication Date

20260505

Application Date

20250526

Claims (10)

1. 1. A vibration damping fastener adapted for use in a fabricated structure, comprising: Iron backing plate (1), under-rail elastic pad (2), under-plate elastic pad (3), locking stand (5), nylon bush (6), locking apron (7), spike (8) and bullet strip (11), wherein: the under-rail elastic pad (2), the iron base plate (1) and the under-plate elastic pad (3) are sequentially stacked from top to bottom; The iron base plate (1) and the elastic pad (3) below the plate are correspondingly provided with through holes, the locking upright posts (5) vertically penetrate through the through holes, the lower end faces of the locking upright posts are in pressure connection with the upper part of the track foundation, and the upper end faces of the locking upright posts are connected with the locking cover plates (7); The nylon bushing (6) is sleeved on the periphery of the locking upright post (5) and is vertically arranged in the through holes on the iron base plate (1) and the under-plate elastic pad (3); The locking cover plate (7) is arranged at the top of the locking upright post (5), a first through hole is formed in the locking upright post, a slotted hole (501) is correspondingly formed in the locking upright post (5), the spike (8) vertically penetrates through the first through hole and the slotted hole (501) to fix the vibration reduction fastener on the supporting upright post of the ballastless track structure, the locking cover plate (7) can move relative to the locking upright post (5) to drive the spike (8) to adjust the position along the slotted hole (501), and track gauge adjustment is achieved.
2. 2. The vibration damping fastener according to claim 1, further comprising a coupling pad (4) disposed below the under-plate elastic pad (3) and provided with a second through hole, wherein a lower end surface of the locking upright (5) abuts against the coupling pad (4).
3. 3. The vibration damping fastener according to claim 1, wherein the upper end face of the locking upright post (5) is provided with a lower distance adjusting tooth (503), the lower end face of the locking cover plate (7) is correspondingly provided with an upper distance adjusting tooth (701), and the lower distance adjusting tooth (503) and the upper distance adjusting tooth (701) form meshed fit.
4. 4. A vibration damping fastener according to claim 3, wherein the upper end surface of the locking upright (5) extends to form a first flange (502) in a horizontal direction, and the array of distance-down teeth (503) is distributed on the top surface of the first flange (502).
5. 5. The vibration damping fastener according to claim 4, characterized in that the locking upright (5) has a rectangular cross section, the nylon bushing (6) is provided with a rectangular hole (601) matched with the rectangular cross section, the top of the nylon bushing (6) extends to form a second flanging (602) horizontally, the second flanging (602) is pressed between the iron base plate (1) and the locking cover plate (7), and the first flanging (502) is pressed between the second flanging (602) and the locking cover plate (7).
6. 6. The vibration damping fastener according to claim 5, characterized in that the first flange (502) is formed on the three-sided periphery of the locking upright (5) facing away from the rail (12), and the second flange (602) is configured to correspond to the first flange (502).
7. 7. A vibration damping fastener according to claim 1 or 3, characterized in that the locking cover plate (7) is provided with a distance-adjusting indicating block (702), the locking upright (5) is provided with a distance-adjusting center line indicating bar (504), and the spike (8) is positioned in the geometric center of the oblong hole (501) when the distance-adjusting indicating block (702) is coincident with the distance-adjusting center line indicating bar (504).
8. 8. The vibration damping fastener according to claim 1, characterized in that the lower end of the spike (8) is provided with a threaded connection portion, the upper end is provided with a T-shaped head, and the T-shaped head forms a limit clamp with the locking cover plate (7).
9. 9. Damping fastener according to claim 8, characterized in that a washer (9) is provided between the T-shaped head and the locking cover (7).
10. 10. The vibration damping fastener according to claim 1, further comprising bolts (10), wherein the iron backing plate (1) is provided with symmetrically distributed spring strip seats, the spring strips (11) are pressed and fixed on the spring strip seats through the bolts (10), and the steel rail (12) is clamped between the two spring strip seats and is arranged at intervals with the spring strip seats through the gauge blocks (13).

Description

Damping fastener suitable for assembled structure Technical Field The utility model relates to the technical field of rail transit, in particular to a vibration damping fastener suitable for an assembled structure. Background The rail fastener is an important component of a railway track system, mainly plays an important role of fixing rails and keeping track gauge, and is an important component for safe running of railways. Part of rail transit yards need to consider the influence of train running on the vibration and noise of the upper structure, so the fastener needs to have certain vibration reduction performance. In addition, the assembled track structure is a common track structure, and the large-adjustment-amount fastener is an important component part of the prefabricated track structure, so that more flexibility can be provided for the construction process, and more convenience is provided for the operation process. In the case of the assembled track structure in the field section, the position accuracy of the lower prefabricated part needs to be reasonably deviated during installation or pouring, and in addition, the prefabricated part manufacturing deviation, the measuring deviation and the like, so that the track gauge and the elevation need to be adjusted by means of the fastener system. In order to better match an assembled track structure, operation and maintenance are convenient, the track gauge and elevation adjustment amount are large, the cost is low, and the development of a vibration reduction fastener special for a field ballastless track is one of technical problems to be solved by the technicians in the field. Disclosure of utility model In order to solve the technical problems, the utility model provides a vibration reduction fastener suitable for an assembled structure. The utility model provides a vibration damping fastener suitable for an assembled structure, which comprises the following components: Iron backing plate, rail elasticity pad, board elasticity pad down, locking stand, nylon bush, locking apron, railway spike and bullet strip, wherein: the under-rail elastic pad, the iron base plate and the under-plate elastic pad are sequentially stacked from top to bottom; The iron base plate and the elastic pad below the plate are correspondingly provided with through holes, the locking upright posts vertically penetrate through the through holes, the lower end faces of the locking upright posts are in pressure connection with the track foundation, and the upper end faces of the locking upright posts are connected with the locking cover plate; The nylon bushing is sleeved on the periphery of the locking upright post and is vertically arranged in the through holes on the iron base plate and the elastic pad below the plate; The locking cover plate is arranged at the top of the locking upright post, a first through hole is formed in the locking upright post, a slotted hole is correspondingly formed in the locking upright post, the spike vertically penetrates through the first through hole and the slotted hole, the vibration reduction fastener is fixed on the supporting upright post of the ballastless track structure, the locking cover plate can move relative to the locking upright post, and the spike is driven to adjust the position along the slotted hole, so that track gauge adjustment is realized. Optionally, the locking device further comprises a coupling base plate, wherein the coupling base plate is arranged below the plate lower elastic pad and is provided with a second through hole, and the lower end face of the locking upright post is abutted to the coupling base plate. Optionally, the up end of locking stand is provided with down the roll adjustment tooth, the lower terminal surface of locking apron corresponds and is provided with up the roll adjustment tooth, down the roll adjustment tooth forms the meshing cooperation with up the roll adjustment tooth. Optionally, the upper end surface of the locking upright post extends to form a first flanging in a horizontal direction, and the downward distance-adjusting tooth arrays are distributed on the top surface of the first flanging. Optionally, the locking stand has the rectangle cross section, nylon bush is equipped with the rectangular hole that suits with it, nylon bush top extends and forms the second turn-ups of horizontal, the second turn-ups is pressed and is connected between iron backing plate and locking apron, first turn-ups is pressed and is connected between second turn-ups and locking apron. Optionally, the first flange is formed on the periphery of the three sides of the locking upright post, which are opposite to the steel rail, and the second flange is correspondingly configured with the first flange. Optionally, the locking apron is equipped with the roll adjustment and indicates the piece, the locking stand is equipped with the roll adjustment central line and indicates the strip, when roll adjustment indicat