CN223163707U - A damping limit block for a shoulder-type rail vibration reduction fastener - Google Patents

Abstract

The utility model discloses a damping limiting block for a shoulder-blocking type track vibration damping fastener, which relates to the technical field of track traffic vibration damping and comprises a fastener body, a damping limiting block and a damping limiting block, wherein the fastener body comprises a lower iron base plate and an upper iron base plate; the damping device comprises a lower iron base plate, a damping limiting block, a wear-resisting plate, a limiting component and a limiting component, wherein the two ends of the lower iron base plate are respectively provided with a first shoulder, the two ends of the upper iron base plate are respectively provided with a second shoulder matched with the first shoulders, the damping limiting block is arranged between the first shoulders and the second shoulders, one side, close to the second shoulders, of the damping limiting block is provided with the wear-resisting plate, and the first shoulders are provided with the limiting component and are used for limiting the vertical displacement of the upper iron base plate. The vertical restraint effect of the upper iron base plate can be effectively enhanced, the situation that the vibration reduction effect is reduced or vibration reduction is invalid due to the fact that gaps are generated between the first retaining shoulder and the second retaining shoulder due to long-time abrasion can be eliminated, meanwhile, vibration and noise generated during rail transit operation are effectively reduced, long-term operation stability and comfort of the rail transit are improved, and maintenance cost is reduced.

Description

Damping limiting block for shoulder-blocking type track vibration reduction fastener

Technical Field

The utility model relates to the technical field of rail transit vibration reduction, in particular to a damping limiting block for a shoulder-type rail vibration reduction fastener.

Background

The rapid development of the rail transit provides convenience and effectively relieves the pressure of urban traffic for people, but meanwhile, the problems of vibration, noise pollution and the like generated in the running process of the rail transit also always influence the life of residents in the radiation area of the rail transit, and meanwhile, the riding comfort is also influenced. Therefore, vibration reduction and noise reduction of rail vehicles are increasingly emphasized, and rail vibration reduction fasteners are also generated accordingly, so that the rail vibration reduction fasteners are gradually applied to urban rail transit in a large amount.

In the related art, the common vibration damping fasteners are provided with a shoulder-blocking vibration damping fastener and a double-layer nonlinear vibration damping fastener, so that the vibration damping effect of rail transit can be effectively enhanced, wherein the shoulder-blocking vibration damping fastener realizes the transverse limiting capacity of the upper iron pad by means of the shoulder and the stop block, so that the transverse rigidity of the fastener is improved, and the stability and the safety of a rail system are improved.

Disclosure of utility model

The utility model aims to provide a damping limiting block for a shoulder-blocking type track vibration damping fastener, which aims to solve at least one aspect of the problems and the defects in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a shoulder-blocking type damping stopper for a track vibration reduction fastener, comprising:

the fastener comprises a fastener body, a fastener body and a fastener cover, wherein the fastener body comprises a lower iron base plate and an upper iron base plate;

The two ends of the lower iron base plate are respectively provided with a first shoulder, and the two ends of the upper iron base plate are respectively provided with a second shoulder matched with the first shoulder;

A damping limiting block is arranged between the first shoulder and the second shoulder;

A wear-resisting plate is arranged on one side of the damping limiting block, which is close to the second shoulder;

The first shoulder is provided with a limiting part for limiting the vertical displacement of the upper iron backing plate.

According to the damping limiting block for the shoulder-blocking type track vibration reduction fastener, the damping limiting block at least has the following technical effects:

The damping limiting block for the shoulder-type track vibration reduction fastener is arranged between the first shoulder and the second shoulder, is used for limiting the vertical displacement of the upper iron base plate by arranging the limiting component on the first shoulder, can effectively enhance the vertical constraint effect of the upper iron base plate by the limiting component, can eliminate the condition that the vibration reduction effect is reduced or vibration reduction is invalid due to long-time abrasion between the first shoulder and the second shoulder, ensures the stability and reliability of connection between the first shoulder and the second shoulder, effectively reduces vibration and noise generated during track traffic operation, improves long-term running stability and comfort of the track traffic, and reduces maintenance cost.

As a further scheme of the utility model, the two sides of the first retaining shoulder are respectively provided with a first bending part, the two sides of the damping limiting block are respectively provided with a second bending part, and the outer side walls of the two sides of the second bending part are respectively abutted with the inner side walls of the two sides of the first bending part.

As a further scheme of the utility model, two sides of the second retaining shoulder are respectively abutted with inner side walls at two sides of the second bending part.

Because the first bending parts are respectively arranged at the two sides of the first retaining shoulder, the second bending parts are respectively arranged at the two sides of the damping limiting block, the outer side walls at the two sides of the second bending parts are respectively abutted with the inner side walls at the two sides of the first bending parts, the two sides of the second retaining shoulder are respectively abutted with the inner side walls at the two sides of the second bending parts, the second retaining shoulder is clamped in the damping limiting block, the damping limiting block is clamped in the first retaining shoulder, the displacement of the upper iron backing plate along the longitudinal direction and the transverse direction of the steel rail can be effectively limited, the stability and the reliability of the connection of the upper iron backing plate and the lower iron backing plate are ensured, the restraining effect of the upper iron backing plate along the longitudinal direction and the transverse direction of the steel rail is improved, and the wedge-shaped structures corresponding to the positions of the upper iron backing plate and the lower iron backing plate are combined, so that the fit gap between the first retaining shoulder and the second retaining shoulder can be eliminated due to production tolerance or long-term abrasion is caused, the contact between the first retaining shoulder and the second retaining shoulder fastener is tighter, and the integral stability of the integral structure is improved.

As a further scheme of the utility model, a shielding part is arranged at the top of the damping limiting block, and the top of the second blocking shoulder is abutted against the inner side wall of the shielding part.

Because the damping stopper top is provided with the shielding part, the top and the shielding part inside wall butt of second fender shoulder can prevent effectively that the displacement of last indisputable backing plate vertical direction, further ensures the stability and the reliability that go up indisputable backing plate and lower indisputable backing plate are connected, has improved the restriction effect to last indisputable backing plate vertical direction displacement for fastener system wholeness can be more stable, reliable.

As a further scheme of the utility model, the limiting component is a nut arranged at one side of the first shoulder, and the nut penetrates through the first shoulder and is connected with the damping limiting block.

In the embodiment, the damping limiting block is made of high-strength insulating materials, preferably glass fiber reinforced nylon 66 materials, and the limiting part is a nut arranged on one side of the first blocking shoulder, the nut penetrates through the first blocking shoulder and is connected with the damping limiting block, so that the damping limiting block can be effectively mechanically limited, on one hand, the limiting effect can be provided for upward displacement of the upper iron backing plate caused by deflection deformation, on the other hand, the friction surface of the damping limiting block can be fixed on one side of the damping limiting block and one side of the second blocking shoulder, the abrasion resistance of the damping limiting block is improved through the abrasion-resistant plate, the connection stability of the upper iron backing plate and the lower iron backing plate is ensured, the damage of deflection deformation of the damping fastener is eliminated, and the integral stability of the damping fastener is improved.

As a further proposal of the utility model, the limiting component is a cover plate arranged at the top of the first retaining shoulder, and the cover plate extends to the top of the damping limiting block.

As a further scheme of the utility model, grooves are respectively formed in two sides of the bottom of the cover plate, flanges are respectively arranged on two sides of the top of the first retaining shoulder, and the flanges on two sides are respectively arranged in the grooves on two sides.

In this embodiment, the damping stopper adopts the elastomer material to make, preferably TPEE material makes, can effectively improve the elasticity and the pliability of damping stopper, make the fastener system possess good damping performance to the transverse impact load that receives, but because the rigidity and the intensity of elastomer material are insufficient to retrain the second keeps off the shoulder and because of vibrating for a long time, there is the problem of vertical direction displacement, consequently, limiting part is the apron of setting up at first fender shoulder top, the apron extends to damping stopper top, apron bottom both sides are provided with the recess respectively, first fender shoulder top both sides are provided with the flange respectively, both sides flange sets up in both sides recess respectively, can effectively carry out vertical spacing to damping stopper, and the displacement of restriction second fender shoulder in vertical direction has improved the connection steadiness of upper and lower iron backing plate, eliminate the harm that this damping fastener deflects the deformation, thereby promote the holistic stability of this damping fastener.

As a further scheme of the utility model, a plurality of grooves are formed in one side, close to the first shoulder, of the damping limiting block.

In this embodiment, through set up a plurality of slots in the damping stopper one side that is close to first fender shoulder, when can effectively reducing down displacement of upper iron backing plate, to the extrusion of damping stopper, damping stopper can produce suitable deformation through the slot structure, eliminates the influence to fastener vertical rigidity, ensures the structural stability of damping stopper.

Drawings

The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.

FIG. 1 is a schematic view of a first embodiment of a shoulder rail vibration damping fastener lower iron pad;

FIG. 2 is a schematic view of the structure of an upper iron pad of a shoulder rail vibration damping fastener;

FIG. 3 is a schematic view of a first embodiment of a damping stopper for a shoulder rail damping fastener;

FIG. 4 is a schematic view of an assembled structure of a first embodiment of a damping stopper for a shoulder rail damping fastener;

FIG. 5 is a schematic view of a second embodiment of a shoulder rail vibration damping fastener lower iron pad;

FIG. 6 is a schematic view of a shoulder rail vibration damping fastener cover plate structure;

FIG. 7 is a schematic view of a second embodiment of a shoulder rail damping fastener damping stopper;

Fig. 8 is a schematic structural view of an assembled damping stopper for a shoulder-type track vibration damping fastener according to a second embodiment.

Reference numerals:

1. The anti-friction plate comprises a lower iron base plate, 11 parts of a first shoulder, 111 parts of a first bending part, 112 parts of a flange, 2 parts of an upper iron base plate, 21 parts of a second shoulder, 3 parts of a damping limiting block, 31 parts of a wear-resisting plate, 32 parts of a second bending part, 33 parts of a shielding part, 34 parts of a groove, 4 parts of a nut, 5 parts of a cover plate, 51 parts of a groove and a groove.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements 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 utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model 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 utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

The embodiment of the utility model shown in figures 1-8 relates to a damping limiting block for a shoulder-type track damping fastener, which comprises a fastener body, wherein the fastener body comprises a lower iron base plate 1 and an upper iron base plate 2, two ends of the lower iron base plate 1 are respectively provided with a first shoulder 11, two ends of the upper iron base plate 2 are respectively provided with a second shoulder 21 matched with the first shoulder 11, a damping limiting block 3 is arranged between the first shoulder 11 and the second shoulder 21, one side, close to the second shoulder 21, of the damping limiting block 3 is provided with a wear-resisting plate 31, and the first shoulder 11 is provided with a limiting component for limiting the vertical displacement of the upper iron base plate 2.

Specifically, the damping limiting block 3 for the shoulder-type track vibration reduction fastener is arranged between the first shoulder 11 and the second shoulder 21, and is used for limiting the vertical displacement of the upper iron base plate 2 by arranging a limiting component on the first shoulder 11, effectively enhancing the vertical constraint function of the upper iron base plate 2 by the limiting component, eliminating the situation that the vibration reduction effect is reduced or vibration reduction fails due to long-time abrasion between the first shoulder 11 and the second shoulder 21, ensuring the stability and reliability of connection between the first shoulder 11 and the second shoulder 21, effectively reducing vibration and noise generated during track traffic operation, improving the long-term running stability and comfort of the track traffic, and reducing maintenance cost.

As shown in fig. 1-3, the two sides of the first shoulder 11 are respectively provided with a first bending part 111, the two sides of the damping limiting block 3 are respectively provided with a second bending part 32, the outer side walls of the two sides of the second bending part 32 are respectively abutted with the inner side walls of the two sides of the first bending part 111, and the two sides of the second shoulder 21 are respectively abutted with the inner side walls of the two sides of the second bending part 32.

Specifically, because the first shoulder 11 both sides are provided with first kink 111 respectively, damping stopper 3 both sides are provided with second kink 32 respectively, second kink 32 both sides lateral wall respectively with first kink 111 both sides inside wall butt, the both sides of second shoulder 21 respectively with second kink 32 both sides inside wall butt for the second shoulder 21 block is in damping stopper 3, damping stopper 3 block is in first shoulder 11, can effectively restrict the displacement of upper iron backing plate 2 along rail longitudinal and transverse, ensure upper iron backing plate 2 and lower iron backing plate 1 connection's stability and reliability, the restriction effect along rail longitudinal and transverse displacement to upper iron backing plate 2 has been improved, and the wedge structure that upper and lower iron backing plate keeps off shoulder position correspondence combines, make damping stopper 3 can eliminate first shoulder 11 and second shoulder 21 and because the fit gap that the production tolerance or long-term wearing and tearing lead to, make the contact between first shoulder 11 and the fastener second shoulder 21 more closely, overall structure's stability has been improved.

As shown in fig. 3, a shielding portion 33 is disposed at the top of the damping limiting block 3, and the top of the second shoulder 21 abuts against the inner side wall of the shielding portion 33.

Specifically, because the damping stopper 3 top is provided with shielding portion 33, the top and the shielding portion 33 inside wall butt of second fender shoulder 21 can prevent effectively that the displacement of last indisputable backing plate 2 vertical direction, further ensures the stability and the reliability that last indisputable backing plate 2 is connected with indisputable backing plate 1 down, has improved the restriction effect to last indisputable backing plate 2 vertical direction displacement for fastener system wholeness can be more stable, reliable.

As shown in fig. 4, in the first embodiment of the present utility model, the limiting member is a nut 4 disposed on one side of the first shoulder 11, and the nut 4 is disposed through the first shoulder 11 and connected to the damping stopper 3.

Specifically, in this embodiment, the damping stopper 3 is made of a high-strength insulating material, preferably made of a glass fiber reinforced nylon 66 material, and since the limiting component is a nut 4 disposed on one side of the first shoulder 11, and the nut 4 is disposed through the first shoulder 11 and connected with the damping stopper 3, the damping stopper 3 can be effectively mechanically limited, on one hand, a limiting effect can be provided for upward displacement of the upper iron pad 2 due to deflection deformation, and on the other hand, a friction surface of the damping stopper 3 can be fixed on one side of the damping stopper 3 and one side of the second shoulder 21, and the wear resistance of the damping stopper is improved through the wear-resisting plate 31, so that the connection stability of the upper and lower iron pads is ensured, the damage of deflection deformation of the damping fastener is eliminated, and the overall stability of the damping fastener is improved.

The second embodiment of the present utility model shown in fig. 5-8, which is the same as the previous embodiment and is not repeated, is different in that the limiting component is a cover plate 5 disposed on top of the first shoulder 11, the cover plate 5 extends to the top of the damping stopper 3, grooves 51 are respectively disposed on two sides of the bottom of the cover plate 5, flanges 112 are respectively disposed on two sides of the top of the first shoulder 11, and the flanges 112 on two sides are respectively disposed in the grooves 51 on two sides.

Specifically, in this embodiment, the damping stopper 3 is made of an elastomer material, preferably TPEE material, so that the elasticity and flexibility of the damping stopper 3 can be effectively improved, the damping stopper 3 can be restored to an original state after the impact of shoulder vibration, and the stability of the damping stopper 3 is ensured, but because the rigidity and strength of the elastomer material are insufficient to restrict the second shoulder 21, the problem of vertical displacement exists due to long-term vibration, the limiting component is a cover plate 5 arranged at the top of the first shoulder 11, the cover plate 5 extends to the top of the damping stopper 3, grooves 51 are respectively arranged at two sides of the bottom of the cover plate 5, flanges 112 are respectively arranged at two sides of the top of the first shoulder 11, and the flanges 112 at two sides are respectively arranged in the grooves 51 at two sides, so that the damping stopper 3 can be effectively limited vertically, and the displacement of the second shoulder 21 in the vertical direction is limited, the connection stability of the upper and lower iron pad plates is improved, the harm of the deflection deformation of the damping fastener is eliminated, and the overall stability of the damping fastener is improved.

Further, as shown in fig. 5, a plurality of grooves 34 are formed on one side of the damping limiting block 3, which is close to the first shoulder 11.

Specifically, through set up a plurality of slots 34 in the one side that damping stopper 3 is close to first fender shoulder 11, when can effectively reducing down displacement of upper iron backing plate 2, to the extrusion of damping stopper 3, damping stopper 3 can produce suitable deformation through slot 34 structure, eliminates the influence to fastener vertical rigidity, ensures damping stopper 3's structural stability.

The foregoing is merely illustrative of the structures of this utility model and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the utility model or from the scope of the utility model as defined in the accompanying claims.

Claims (8)

1. The utility model provides a keep off shoulder formula track damping stopper for fastener which characterized in that includes:

The fastener comprises a fastener body, wherein the fastener body comprises a lower iron base plate (1) and an upper iron base plate (2);

The two ends of the lower iron base plate (1) are respectively provided with a first shoulder (11), and the two ends of the upper iron base plate (2) are respectively provided with a second shoulder (21) matched with the first shoulder (11);

A damping limiting block (3) is arranged between the first shoulder (11) and the second shoulder (21);

a wear-resistant plate (31) is arranged on one side of the damping limiting block (3) close to the second shoulder (21);

the first shoulder (11) is provided with a limiting component for limiting the vertical displacement of the upper iron base plate (2).

2. The damping limiting block for the shoulder-blocking track vibration-damping fastener according to claim 1, wherein first bending parts (111) are respectively arranged on two sides of the first shoulder (11), second bending parts (32) are respectively arranged on two sides of the damping limiting block (3), and outer side walls on two sides of the second bending parts (32) are respectively abutted against inner side walls on two sides of the first bending parts (111).

3. The damping limiting block for the shoulder-type track vibration-damping fastener according to claim 2, wherein both sides of the second shoulder (21) are respectively abutted against inner side walls of both sides of the second bending portion (32).

4. The damping limiting block for the shoulder-blocking track vibration-damping fastener according to claim 3, wherein a shielding part (33) is arranged at the top of the damping limiting block (3), and the top of the second shoulder (21) is abutted against the inner side wall of the shielding part (33).

5. The damping limiting block for the shoulder-type track vibration-damping fastener according to claim 4, wherein the limiting component is a nut (4) arranged on one side of the first shoulder (11), and the nut (4) is arranged on the first shoulder (11) in a penetrating manner and is connected with the damping limiting block (3).

6. The damping limiting block for the shoulder-type track vibration-damping fastener according to claim 4, wherein the limiting component is a cover plate (5) arranged on the top of the first shoulder (11), and the cover plate (5) extends to the top of the damping limiting block (3).

7. The damping limiting block for the shoulder-blocking track vibration-damping fastener according to claim 6, wherein grooves (51) are respectively formed in two sides of the bottom of the cover plate (5), flanges (112) are respectively formed in two sides of the top of the first shoulder (11), and the flanges (112) are respectively arranged in the grooves (51) on two sides.

8. The damping limiting block for the shoulder-blocking track vibration-damping fastener according to claim 7, wherein a plurality of grooves (34) are formed in one side, close to the first shoulder (11), of the damping limiting block (3).