CN115287947A

CN115287947A - A damping fastener that is used for line in urban rail transit field section storehouse

Info

Publication number: CN115287947A
Application number: CN202210917839.6A
Authority: CN
Inventors: 刘道通; 谭大正; 霍新伟; 李建斌; 杨宝峰; 程保青; 韩朝霞; 徐彩彩; 曹宇泽; 刘冀钊; 姜博龙; 王少林; 陈敦昌; 刘鑫; 田苗盛; 王书卫; 李强
Original assignee: China Railway Design Corp
Current assignee: China Railway Design Corp
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-11-04

Abstract

The invention belongs to the technical field of vibration reduction fasteners, and relates to a vibration reduction fastener used for lines in an urban rail transit field depot, which comprises iron base plates, spiral spikes, two vibration isolation units, elastic strips, T-shaped bolts and gauge blocks, wherein the oblique diagonal positions of the iron base plates are respectively provided with a fixed notch; the spiral track nail is sleeved with a buffer sleeve, the buffer sleeve penetrates through the iron base plate and the vibration isolation unit, one end face of the buffer sleeve, which is in contact with the iron base plate, is provided with an adjusting slope, and the iron base plate is provided with an adjusting groove corresponding to the adjusting slope; the elastic strip, the T-shaped bolt and the gauge block tightly press the steel rail above the iron base plate. This application realizes good vibration isolation performance with the structure of retrenching to can combine the thickness of vibration isolation unit to carry out height adjustment.

Description

A damping fastener that is used for line in urban rail transit field section storehouse

Technical Field

The invention relates to the technical field of vibration damping fasteners, in particular to a vibration damping fastener for a line in an urban rail transit depot.

Background

The subway vehicle base is used as a supporting facility of the most basic urban rail transit and has the characteristics of large floor area, small building density and small land strength. The mode of 'subway + property' is originally developed in the metro in hong Kong area of China, and the income of the development of the property of the upper cover of the metro is greatly improved, so that the state of the operation loss of the metro is well compensated, and the mode is widely studied and referred. In recent years, more and more cities adopt the development mode of the property industry of the upper cover of the subway field section, such as: beijing, shanghai, guangzhou, shenzhen, suzhou, chongqing, dalian and so on.

In order to relieve the adverse effects of train vibration and noise, vibration and noise reduction measures are adopted on each upper cover, wherein the vibration reduction fasteners are most widely applied. The existing several vibration reduction fasteners have the following disadvantages:

1. double-deck nonlinear compression damping fastener: the damping combination of the double-layer iron base plate and the elastic base plate is adopted, the structure is complex, the number of parts is large, the installation, the overhaul and the replacement operation are complex, and the price is high;

2. single layer non-linear compression damping fastener: adopt the damping combination of "individual layer iron tie plate + elastic backing plate", simple structure, nevertheless through the train rolls, the elastic backing plate thins gradually, thereby it reduces the damping effect to lead to there being the clearance between iron tie plate and the elastic backing plate.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to solve the technical problems mentioned above.

The invention provides a vibration damping fastener for a line in an urban rail transit field depot, which is characterized by comprising an iron base plate, two spiral spikes, two vibration isolation units, two elastic strips, a T-shaped bolt and a gauge block, wherein the two spiral spikes are arranged on the lower end surface of the iron base plate;

the spiral track nail is sleeved with a buffer sleeve, the buffer sleeve penetrates through the iron base plate and the vibration isolation unit, one end face of the buffer sleeve, which is in contact with the iron base plate, is provided with an adjusting slope, and the iron base plate is provided with an adjusting groove corresponding to the adjusting slope;

the elastic strip, the T-shaped bolt and the gauge block tightly press the steel rail above the iron base plate.

The adjusting slopes on the buffer sleeve are circumferentially provided with a plurality of adjusting grooves, and the iron base plate is provided with a plurality of adjusting grooves corresponding to the adjusting slopes.

And occlusion teeth are arranged on one end surface of the adjusting slope on the buffer sleeve, which is contacted with the adjusting groove.

The buffer sleeve is made of a nylon insulating material.

The vibration isolation unit adopts a microporous foamed elastomer base plate.

The iron base plate is provided with extension parts at the opposite angles of the two fixing notches.

A plate lower height-adjusting base plate is arranged between the iron base plate and the sleeper, and a rail lower height-adjusting base plate is arranged between the iron base plate and the rail.

The invention has the beneficial effects that:

firstly, when the screw spike is fastened, the lower part of the buffer sleeve props against the upper surface of the sleeper/plate lower heightening base plate, the elasticity of the vibration isolation unit positioned below the iron base plate is released, good vibration isolation performance is obtained through a simplified structure, and the operation difficulty of constructors and the production cost of the fastener are greatly reduced.

Secondly, the height of the iron base plate can be adjusted by mutually matching the adjusting slope on the buffer sleeve with the adjusting groove on the iron base plate, so that the iron base plate and the vibration isolation unit are pressed tightly, and the stability of the equipment is ensured;

simultaneously, the adjusting slope on the buffer sleeve is provided with the occlusion teeth on the end face contacted with the adjusting groove, and the occlusion teeth can improve the contact friction force of the adjusting slope on the adjusting groove, so that the buffer sleeve is ensured to be kept in a stable state after adjustment.

Thirdly, the iron base plate is provided with the extension part, the pertinence on the weak part of the fixed notch is strengthened, the strength storage is optimized, and the material utilization rate is improved.

Fourthly, in order to meet the laying requirements of the rails in different areas, a plate lower heightening base plate is arranged between the iron base plate and the sleeper, and a rail lower heightening base plate is arranged between the iron base plate and the rails, so that the plate lower heightening base plate and the rail lower heightening base plate with corresponding heights can be arranged according to requirements to increase the laying height of the rails, and the practicability of the railway sleeper is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Figure 1 is a schematic perspective view of a vibration-damping fastener,

figure 2 is a top view of a vibration-damping fastener,

figure 3 is a cross-sectional view of a vibration-damped fastener,

FIG. 4 is a schematic structural view of the buffer sleeve and the adjusting groove,

fig. 5 is a schematic structural view of the cushion collar.

1. An iron backing plate; 11. a fixed notch; 12. an adjustment groove; 13. occluding teeth; 14. an extension portion; 2. a screw spike; 3. a vibration isolation unit; 4. a spring bar; 5. a T-bolt; 6. a gauge block; 7. a buffer sleeve; 71. adjusting the slope; 8. a lower elevation pad; 9. the rail is lowered to raise the backing plate.

Detailed Description

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

In this embodiment, as shown in fig. 1 to 5, a vibration damping fastener for a line in an urban rail transit field depot comprises an iron base plate 1, two spiral spikes 2, two vibration isolation units 3, elastic strips 4, T-shaped bolts 5 and a gauge block 6, wherein the iron base plate 1 is provided with a fixing notch 11 at each of diagonal positions, the vibration isolation units 3 are arranged on the lower end surface of the iron base plate 1, the vibration isolation units 3 are microcellular foamed elastomer base plates, the microcellular foamed elastomer base plates have good elasticity and play a role in insulation protection between the iron base plate 1 and a sleeper, the two spiral spikes 2 are arranged, and the two spiral spikes 2 respectively penetrate through the two fixing notches 11 to fix the iron base plate 1 on the sleeper;

the spiral spike 2 is sleeved with the buffer sleeve 7, the buffer sleeve 7 penetrates through the iron base plate 1 and the vibration isolation unit 3, the buffer sleeve 7 is made of nylon insulating materials, the lower part of the buffer sleeve 7 abuts against the upper surface of a sleeper, the vibration isolation unit 3 is prevented from being extruded, elasticity of the vibration isolation unit is released, meanwhile, when a steel rail bears transverse force, the spiral spike 2 and the buffer sleeve 7 play a role in transverse limiting, driving safety is guaranteed, compared with a traditional vibration damping fastener, parts are easy to install and maintain, and meanwhile production and manufacturing costs are reduced;

bullet strip 4, T type bolt 5 and gauge block 6 compress tightly the rail in the top of iron tie plate 1, gauge block 6 sets up two, two gauge blocks 6 are taken respectively in the both sides of rail, bullet strip 4 sets up two, two bullet strips 4 set up the both sides at the rail respectively, and contradict respectively on both sides gauge block 6 for the one end of two bullet strips 4, the opposite side of two bullet strips 4 is all withheld on iron tie plate 1, T type bolt 5 sets up two, two T type bolts 5 are all installed on iron tie plate 1 and are pushed down to the middle part of both sides billet, thereby make the bullet strip 4 of both sides withhold the both sides of rail respectively.

The vibration isolation unit 3 can have the condition of compression attenuation in long-time buffering process, and because conflict on sleeper or the board height-adjusting pad 8 board under the buffer sleeve 7 passes iron tie plate 1 and vibration isolation unit 3 after, consequently can't compress tightly through simple screw spike 2 clearance between iron tie plate 1 and the vibration isolation unit 3, contrast this application and be provided with a plurality of regulation slope 71 at the terminal surface of buffer sleeve 7 with iron tie plate 1 contact, increase the quantity of regulation slope 71 and can improve the contact stability of buffer sleeve 7 and iron tie plate 1, preferably set up two regulation slopes 71 in this application, two regulation slopes 71 are the annular setting, be provided with on the iron tie plate 1 with adjust a plurality of adjustment tank 12 that slope 71 is to corresponding, preferably set up two in this application and adjust the corresponding adjustment tank 12 of slope 71, in the installation adaptation process to equipment, rotatory buffer sleeve 7 after the vibration isolation unit 3 attenuation when the staff discovers, regulation slope 71 on the buffer sleeve 7 cooperates with the adjustment tank 12 on the iron tie plate 1 this moment, thereby compress tightly iron tie plate 1 and vibration isolation unit 3, with this has guaranteed that the interlock stability of the buffer sleeve 7 on the buffer sleeve is adjusted the slope 12, thereby the buffer sleeve 7 contact stability can set up through the buffer sleeve 13 contact stability of buffer sleeve 13, contact stability, thereby can be guaranteed to set up the adjustment tank 12 on the buffer sleeve 7 contact stability of adjusting tooth contact stability of adjusting groove 13.

Simultaneously in this application to the shape of iron tie plate 1 design, set up two fixed notch 11's diagonal angle department on iron tie plate 1 and set up extension 14, finally obtain irregular shape, optimized its intensity deposit, improved the utilization ratio of material, saved the materials, and can install iron tie plate 1 steadily at two spiral spikes 2 that set up the diagonal angle, increased the installation convenience of equipment, the bullet strip 4 that combines the symmetry to set up simultaneously can be more stable fixes the track.

In order to satisfy the track demand of laying in different regions, set up the board and heighten under the board and fill up 8 boards between iron tie plate 1 and sleeper, set up the rail and heighten under the iron tie plate 1 and the track backing plate 9 to this can set up the board that corresponds the height and heighten under the board and fill up 8 boards and the rail and heighten under the rail backing plate 9 and increase orbital the height of laying according to the demand, thereby increased the practicality of this application.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A vibration reduction fastener for a line in an urban rail transit field depot is characterized by comprising an iron base plate (1), two spiral spikes (2), two vibration isolation units (3), two elastic strips (4), two T-shaped bolts (5) and a gauge block (6), wherein the oblique diagonal positions of the iron base plate (1) are respectively provided with a fixed notch (11), the vibration isolation units (3) are arranged on the lower end surface of the iron base plate (1), the two spiral spikes (2) are arranged, and the two spiral spikes (2) respectively penetrate through the two fixed notches (11) to fix the iron base plate (1) on a sleeper;

the spiral spike (2) is sleeved with a buffer sleeve (7), the buffer sleeve (7) penetrates through the iron base plate (1) and the vibration isolation unit (3), one end face of the buffer sleeve (7) in contact with the iron base plate (1) is provided with an adjusting slope (71), and the iron base plate (1) is provided with an adjusting groove (12) corresponding to the adjusting slope (71);

the steel rail is tightly pressed above the iron base plate (1) through the elastic strips (4), the T-shaped bolts (5) and the gauge blocks (6).

2. The shock-absorbing fastener for the lines in the urban rail transit depot according to claim 1, wherein a plurality of adjusting slopes (71) on the buffer sleeve (7) are circumferentially arranged, and a plurality of adjusting grooves (12) corresponding to the adjusting slopes (71) are arranged on the iron base plate (1).

3. The vibration damping fastener for the line in the segment warehouse of the urban rail transit field according to claim 2, characterized in that the adjusting groove (12) is provided with an adjusting groove (12) and an adjusting slope (71) on the buffering sleeve (7).

4. The damping fastener for the line in the segment base of the urban rail transit field according to claim 1, wherein the buffer sleeve (7) is made of a nylon insulating material.

5. The vibration damping fastener for the line in the segment base of the urban rail transit field according to claim 1, wherein the vibration isolation unit (3) adopts a microcellular foamed elastomer base plate.

6. The vibration damping fastener for the line in the urban rail transit field depot is characterized in that the iron base plate (1) is provided with two fixing notches (11), and the diagonal positions of the two fixing notches are provided with extension parts (14).

7. The damping fastener for the line in the urban rail transit field depot is characterized in that a plate-down heightening pad (8) plate is arranged between the iron base plate (1) and the sleeper, and a rail-down heightening pad (9) is arranged between the iron base plate (1) and the rail.