Compression type railway track damping fastener

Abstract

The utility model relates to the technical field of rail transit, in particular to a compression type railway track vibration reduction fastener which comprises a sleeper, a base plate assembly, an installation plate, an elastic strip, a fastening screw and a fastening assembly, and the installation plate comprises a first plate body used for placing a steel rail and two second plate bodies arranged on the two sides of the first plate body. A sliding groove is formed in the first plate body, sliding blocks are arranged on the two second plate bodies, and the end face of the fastening spike abuts against the elastic strip. When the sleeper mounting device needs to be mounted on steel rails of different sizes, the two second plate bodies slide relative to the first plate body, so that the distance between the two second plate bodies is matched with the size of the steel rail, then the second plate bodies and the steel rail are fixed through cooperation of fastening screws and elastic strips, and finally the two second plate bodies are fixed to a sleeper through fastening assemblies. Therefore, steel rails with different sizes can be mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to a compression type railway track vibration reduction fastener. Background Art

[0002] While urban rail transit brings convenience to people's travel, wheel-rail coupling vibration also brings vibration and noise pollution to surrounding buildings. Using vibration-reducing fasteners on the track is one of the effective measures to reduce the surrounding environment and noise. As the connecting component between the rails and the sleepers, the railway track fasteners not only fix the rails, but also have a certain vibration reduction function.

[0003] There are several structures of vibration-damping fasteners. When installed, the rails are usually fixed by spring bars and bolts. However, the holes for preventing the bolts and the positions for placing the spring bars on the existing vibration-damping fasteners are fixed, and cannot be applied to rails of different sizes. Utility Model Content

[0004] Based on the technical problems existing in the above-mentioned prior art, the utility model provides a compression type railway track vibration-damping fastener, which can be suitable for installing rails of different sizes.

[0005] The technical solution adopted by the utility model to solve its technical problems is: to provide a compression type railway track vibration reduction fastener, including a sleeper, a pad assembly and a mounting plate installed on the sleeper, an elastic bar arranged on the mounting plate, a fastening screw and a fastening assembly for fixing the mounting plate, the mounting plate including a first plate body for placing a rail and two second plate bodies arranged on both sides of the first plate body, the first plate body is provided with a sliding groove, when the rail is installed, the rail is located between the two second plate bodies, the two second plate bodies are provided with a sliding block that slides relative to the first plate body, the sliding block is slidably arranged in the sliding groove, the fastening screw is used to cooperate with the elastic bar to relatively fix the second plate body and the rail, when the rail is installed, the end face of the fastening screw and the elastic bar are abutted.

[0006] Furthermore, the sleeper is provided with a fixing groove, the fastening assembly includes a spiral spike and a sleeve pre-buried in the fixing groove, the two second plates are both provided with a mounting groove through which the spiral spike passes, and the spiral spike and the sleeve are threadedly matched.

[0007] Furthermore, the spiral spike is provided with a limiting nut integrally formed with the spiral spike, and the end surface diameter of the limiting nut is larger than the cross-sectional width of the fixing groove.

[0008] Furthermore, the fastening assembly also includes a mounting pad, on which a snap-fitting groove adapted to the rail is formed. When the rail is installed, the mounting pad is located between the elastic bar and the rail, and the snap-fitting groove snaps into the rail.

[0009] Furthermore, a limiting block is provided on the second plate body, and the limiting block passes through a hole formed by bending the elastic bar.

[0010] Furthermore, the top of the limit block is higher than the height of the elastic bar.

[0011] Furthermore, the pad assembly includes a first pad and a second pad which are sequentially arranged on both sides of the mounting plate in the thickness direction, a mounting protrusion is provided on the first plate body, and a side wall of the first pad abuts against the mounting protrusion.

[0012] Furthermore, the pad assembly also includes a rubber pad arranged above the first pad, and the side wall of the rubber pad and the mounting protrusion abut against each other.

[0013] The utility model has the beneficial effects of providing a compression type railway track vibration damping fastener, comprising a sleeper, a pad assembly and a mounting plate installed on the sleeper, a spring bar arranged on the mounting plate, a fastening screw and a fastening assembly for fixing the mounting plate, the mounting plate comprising a first plate body for placing a rail and two second plates arranged on both sides of the first plate body, the first plate body is provided with a sliding groove, when installing the rail, the rail is located between the two second plates, the two second plates are provided with a sliding block sliding relative to the first plate body, the sliding block is slidingly arranged in the sliding groove, the fastening screw is used to cooperate with the spring bar to relatively fix the second plate body and the rail, when installing the rail, the end face of the fastening screw and the spring bar are against each other. When it is necessary to install on rails of different sizes, the two second plates are slid relative to the first plate body so that the spacing between the two second plates is adapted to the size of the rail, and then the second plate body and the rail are fixed by the cooperation of the fastening screw and the spring bar, and finally the two second plates are fixed on the sleeper with the fastening assembly. Thus, it is possible to realize the installation of rails of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] In the figure: Figure 1 This is an overall structural diagram of a compression type railway track vibration reduction fastener provided by the utility model;

[0016] Figure 2 for Figure 1 An exploded view of a compression type railway track vibration damping fastener is shown;

[0017] Figure 3 for Figure 1 A top view of a compression type railway track vibration damping fastener is shown;

[0018] Figure 4 for Figure 3 AA section view;

[0019] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0020] Explanation of the reference numerals: 100, compression type railway track vibration damping fastener; 10, sleeper; 11, fixing groove; 20, pad assembly; 21, first pad; 22, second pad; 23, rubber pad; 24, height adjustment pad; 241, movable groove; 30, mounting plate; 31, first plate body; 311, sliding groove; 312, mounting protrusion; 32, second plate body; 321, sliding block; 322, threaded groove; 323, limiting block; 324, engaging block; 3241, supporting groove; 325, mounting groove; 40, spring bar; 50, fastening screw; 51, fixing bolt; 60, fastening assembly; 61, spiral spike; 611, limiting nut; 62, sleeve; 63, mounting pad; 631, engaging groove; 64, washer one; 65, washer two; 66, locking snap ring; 70, rail. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is now described in detail in conjunction with the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basics of the utility model in a schematic manner, so it only shows the structure related to the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] Please refer to Figure 1-5 The compression type railway track vibration damping fastener 100 includes a sleeper 10, a pad assembly 20 and a mounting plate 30 installed on the sleeper 10, a spring bar 40 arranged on the mounting plate 30, and a fastening screw 50 and a fastening assembly 60.

[0023] The sleeper 10 is provided with a fixing groove 11. Specifically, the sleeper 10 is placed horizontally, the bottom of the sleeper 10 is flat, and the sleeper 10 is roughly rectangular. Two fixing grooves 11 are provided and arranged in pairs on the sleeper 10. The relative positions of the two fixing grooves 11 are determined according to the horizontal length of the rail 70.

[0024] The mounting plate 30 includes a first plate body 31 for placing the steel rail 70 and two second plates 32 arranged on both sides of the first plate body 31. The first plate body 31 is provided with a sliding groove 311, and a mounting protrusion 312 is respectively provided on both sides of the width direction of the first plate body 31. When installing the steel rail 70, the steel rail 70 is located between the two second plates 32. The two second plates 32 are provided with a sliding block 321 that slides relative to the first plate body 31. The sliding block 321 is slidably arranged in the sliding groove 311. The second plate body 32 is also provided with a threaded groove 322 for fixing the fastening screw 50. Specifically, the fastening screw 50 is provided with two,

[0025] The second plate body 32 is also provided with a limit block 323 and a locking block 324, and the limit block 323 passes through the hole formed by the bending of the elastic bar 40. Specifically, in this embodiment, the top of the limit block 323 is higher than the height of the elastic bar 40. There are two limit blocks 323, and four locking blocks 324, and the two limit blocks 323 and the four locking blocks 324 are evenly distributed on both sides of the length direction of the first plate body 31, and each locking block 324 is provided with a supporting groove 3241 for the elastic bar 40 to support.

[0026] The two second plates 32 are each provided with a mounting groove 325 for the spiral spike 61 to pass through.

[0027] The pad assembly 20 includes a first pad 21 and a second pad 22 which are sequentially arranged on both sides of the mounting plate 30 in the thickness direction. The side wall of the first pad 21 abuts against the two mounting protrusions 312 .

[0028] The pad assembly 20 also includes a rubber pad 23 disposed above the first pad 21 and a height-adjusting pad 24 disposed below the second pad 22. The rubber pad 23 is located at the bottom end of the rail 70. The side wall of the rubber pad 23 abuts against the mounting protrusion 312, thereby preventing the second pad 22 and the rubber pad 23 from shifting when placed on the first plate 31. The height-adjusting pad 24 and the second pad 22 are both provided with a moving groove 241 adapted to the sliding groove 311, and the moving groove 241 and the fixed groove 11 are interconnected. The height-adjusting pad 24 can increase the installation height of the rail 70, and the rubber pad 23 plays a buffering role.

[0029] The fastening screw 50 is used to cooperate with the spring bar 40 to relatively fix the second plate 32 and the rail 70. The fastening screw 50 is provided with a fixing bolt 51 that cooperates with the fastening screw 50. When the rail 70 is installed, the end surface of the fixing bolt 51 abuts against the spring bar 40. The fastening screw 50 is threadedly connected in the thread groove 322 on the second plate 32.

[0030] The fastening assembly 60 includes a spiral spike 61 and a sleeve 62 pre-buried in the fixing groove 11, and the spiral spike 61 and the sleeve 62 are threadedly matched. Further, a limiting nut 611 is provided at the top of the spiral spike 61 and is integrally formed with the spiral spike 61. The end surface of the bottom end of the limiting nut 611, i.e., the maximum diameter of the spiral spike 61, has a diameter greater than the cross-sectional width of the fixing groove 11, and the sleeve 62 and the fixing groove 11 are axially adapted.

[0031] In some embodiments, the outer wall of the sleeve 62 is provided with threads, so that when the sleeve 62 is pre-buried in the fixing groove 11 , the sleeve 62 is not easily separated from the fixing groove 11 .

[0032] The fastening assembly 60 further includes a mounting pad 63, a washer 1 64 matched with the fastening screw 50, a washer 2 65 matched with the spiral spike 61, and a locking snap ring 66 disposed between the washer 2 65 and the second plate 32. The mounting pad 63 is provided with a snap groove 631 matched with the rail 70. When the rail 70 is installed, the mounting pad 63 is located between the spring bar 40 and the rail 70, and the snap groove 631 is snapped with the rail 70. Specifically, in this embodiment, the mounting pad 63, the washer 1 64, the washer 2 65 and the locking snap ring 66 are all disposed in pairs with respect to the rail 70.

[0033] Washer 1 64 is located between the fixing bolt 51 and the spring bar 40, the locking snap ring 66 and the end faces of the limiting nut 611 are abutted against each other, washer 2 65 is located above the second plate body 32, and the top surface of washer 2 65 is abutted against the locking snap ring 66, and the bottom surface of washer 2 65 is abutted against the second plate body 32, so as to fix the second plate body 32 on the sleeper 10.

[0034] Specifically, in this embodiment, two spring bars 40 are provided, and the spring bars 40 are roughly W-shaped, and the bottom ends of the two W-shaped spring bars 40 are respectively engaged in the abutting grooves 3241 on the engaging blocks 324. The upper ends of the two W-shaped spring bars 40 are respectively abutted on the washers 1 64 located on the fastening screws 50, and the lower ends of the two W-shaped spring bars 40 are respectively abutted against the abutting grooves 3241 of the engaging blocks 324 on the two second plates 32, and the lower ends of the two W-shaped spring bars 40 are also respectively abutted against the top ends of the two mounting pads 63, so that the two spring bars 40 can be forcefully applied by the washers 1 64 on the fastening screws 50, and the two spring bars 40 simultaneously apply force to the mounting pads 63 and the rails 70, so that the rails 70 and the second plates 32 are relatively fixed on the premise that the two second plates 32 are fixed to the sleepers 10 by the fastening assemblies 60, and the rails 70 are fixed to the sleepers 10 accordingly.

[0035] When it is necessary to install on rails 70 of different sizes, the two second plates 32 are slid relative to the first plate 31, so that the spacing between the two second plates 32 is adapted to the size of the rail 70, and then the second plates 32 and the rail 70 are fixed by the fastening screws 50 and the spring bars 40, and finally the two second plates 32 are fixed to the sleeper 10 by the fastening assembly 60. In this way, it is possible to achieve the installation of rails 70 of different sizes.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] It should be understood that the terms "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] The above is based on the ideal embodiment of the utility model. Through the above description, relevant staff can make various changes and modifications without departing from the scope of the utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A compression type railway track vibration damping fastener, characterized in that: The invention comprises a rail sleeper (10), a backing plate assembly (20) and a mounting plate (30) mounted on the rail sleeper (10), a spring bar (40) and a fastening screw (50) arranged on the mounting plate (30) and a fastening assembly (60) for fixing the mounting plate (30), wherein the mounting plate (30) comprises a first plate body (31) for placing a steel rail (70) and two second plate bodies (32) arranged on both sides of the first plate body (31), wherein the first plate body (31) is provided with a sliding groove (311), and the steel rail (70) is mounted on the first plate body (31). When the steel rail (70) is installed, the steel rail (70) is located between the two second plates (32), and the two second plates (32) are each provided with a sliding block (321) that slides relative to the first plate (31), and the sliding block (321) is slidably arranged in the sliding groove (311), and the fastening screw (50) is used to cooperate with the elastic bar (40) to relatively fix the second plate (32) and the steel rail (70), and when the steel rail (70) is installed, the end surface of the fastening screw (50) and the elastic bar (40) are abutted against each other.

2. The compression type railway track vibration damping fastener according to claim 1, characterized in that: The sleeper (10) is provided with a fixing groove (11), the fastening assembly (60) comprises a spiral spike (61) and a sleeve (62) pre-buried in the fixing groove (11), the two second plates (32) are both provided with a mounting groove (325) through which the spiral spike (61) passes, and the spiral spike (61) and the sleeve (62) are threadedly matched.

3. The compression type railway track vibration damping fastener according to claim 2, characterized in that: The spiral spike (61) is provided with a limiting nut (611) integrally formed with the spiral spike (61), and the end surface diameter of the limiting nut (611) is larger than the cross-sectional width of the fixing groove (11).

4. The compression type railway track vibration damping fastener according to claim 1, characterized in that: The fastening assembly (60) further comprises a mounting pad (63), on which a snap-fitting groove (631) adapted to the steel rail (70) is formed. When the steel rail (70) is mounted, the mounting pad (63) is located between the elastic bar (40) and the steel rail (70), and the snap-fitting groove (631) is snap-fitted to the steel rail (70).

5. The compression type railway track vibration damping fastener according to claim 1, characterized in that: The second plate body (32) is also provided with a limit block (323), and the limit block (323) passes through a hole formed by bending the elastic bar (40).

6. The compression type railway track vibration damping fastener according to claim 5, characterized in that: The top end of the limiting block (323) is higher than the height at which the elastic bar (40) is located.

7. The compression type railway track vibration damping fastener according to claim 1, characterized in that: The pad assembly (20) comprises a first pad (21) and a second pad (22) which are sequentially arranged on both sides of the mounting plate (30) in the thickness direction; a mounting protrusion (312) is provided on the first plate body (31); and a side wall of the first pad (21) abuts against the mounting protrusion (312).

8. The compression type railway track vibration damping fastener according to claim 7, characterized in that: The pad assembly (20) further comprises a rubber pad (23) arranged above the first pad (21), and the side wall of the rubber pad (23) and the mounting protrusion (312) are in mutual abutment with each other.

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