CN212505647U

CN212505647U - Split type height-adjustable fastener system suitable for e-shaped elastic strip

Info

Publication number: CN212505647U
Application number: CN202020771936.5U
Authority: CN
Inventors: 马红超; 梅海军; 许亮
Original assignee: Wuhan Kunneng Track System Technology Co ltd
Current assignee: Wuhan Kunneng Track System Technology Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-02-09
Anticipated expiration: 2030-05-11

Abstract

The utility model discloses a split type fastener system of increaseing suitable for e type bullet strip belongs to track traffic fastener system field, and it sets up bullet strip mount pad through corresponding on the iron backing plate to it sets up the eccentric lining ring in pairs, and sets up first bullet backing plate between iron backing plate and rail bottom, utilizes the rotation of the eccentric lining ring to adjust and change with the correspondence of first bullet backing plate, can realize the quick adjustment of rail height on the basis of anchor bolt is not twisted off entirely. The utility model discloses a split type height-adjusting fastener system suitable for e type bullet strip, its simple structure, it is simple and convenient to adjust, can realize the altitude mixture control of fastener system fast on the basis of anchor bolt not unscrewing, has promoted the efficiency of fastener system altitude mixture control, has avoided anchor bolt because of the inefficacy risk that many times dismouting leads to, has ensured the application reliability of fastener system, has reduced the application cost of fastener system, has better application prospect and spreading value.

Description

Split type height-adjustable fastener system suitable for e-shaped elastic strip

Technical Field

The utility model belongs to track traffic fastener system field, concretely relates to split type height-adjusting fastener system suitable for e type bullet strip.

Background

With the rapid development of urban rail transit systems such as subways, light rails and the like, the tension situation of urban traffic jam is greatly relieved. In the construction of rail transit systems, fastener systems are often indispensable as a connection between a rail and an undersized foundation. In the fastener system, the e-shaped elastic strip system is widely applied to railway tracks due to the advantages of few system parts, high stability and reliability, low cost and the like.

At present, the common e-shaped elastic strip fastener system mainly comprises a pre-embedded iron seat type and a split type, wherein the pre-embedded iron seat type is mainly applied to a ballast track system, and the split type is applied to a ballastless track system. Under the general condition, the height and the smoothness of a track of a ballast track system can only be adjusted through the ballast below a tamping drum sleeper, the track is difficult to be adjusted through a fastener system, the requirement for maintaining the higher running smoothness requirement cannot be met more and more, and therefore the application of the embedded iron seat type fastener system is gradually reduced.

In contrast, split fastener systems are often coupled to the sleeper by bolts and secured by anchoring screws in cooperation with sleeves embedded in the sleeper, and the adjustment of the rail height of such fastener systems is mainly achieved by replacement or combination of the height-adjustable tie plates of different thicknesses between the iron tie plates and the sleeper, and the height adjustment process often requires the screw spikes to be completely released and the iron tie plates to be lifted upward. Although this kind of regulation form is more accurate than pre-buried iron seat formula, and orbital ride comfort is higher after the adjustment, but whole adjustment process is complicated, and labor efficiency is not high, and anchor bolt is because dismantle repeatedly, screw up, very easily causes pre-buried sleeve pipe screw thread to damage, influences the reliability that the screw way nail is connected, has brought the hidden danger for the long-term stable use of fastener system.

SUMMERY OF THE UTILITY MODEL

To the above defect of prior art or improve in the demand one or more, the utility model provides a fastener system is increaseed to split type suitable for e type bullet strip can realize the increasement or the lowering of rail under the prerequisite that anchor bolt was not pull down in the whole, promotes the efficiency and the accuracy of fastener system altitude mixture control, prolongs the life of fastener system, guarantees the reliability that fastener system used after adjusting many times.

In order to achieve the purpose, the utility model provides a split height-adjusting fastener system suitable for e-shaped elastic strips, which comprises an iron backing plate, elastic strips, a first elastic backing plate and eccentric bushing rings which are arranged in pairs;

the eccentric bushing ring comprises a main body in a cylindrical structure, and an eccentric hole is formed in the end face of one side of the main body in the axial direction; the axis of the eccentric hole is parallel to the axis of the main body and is separated from the main body by a certain distance;

elastic strip mounting seats are respectively arranged at two ends of the top surface of the iron backing plate, accommodating holes are formed in the elastic strip mounting seats corresponding to the main body and used for coaxially embedding the main body, and the main body can rotate in the accommodating holes so as to correspondingly change the distance between the axis of the eccentric hole and the bottom surface of the iron backing plate;

the first elastic cushion plate is arranged between the two elastic strip mounting seats, and has various selectable thickness sizes so as to be matched with the rotation adjustment of the eccentric bushing ring.

As a further improvement, the tip periphery of the eccentric bushing ring is provided with a bulge loop structure along the hoop, and makes the eccentric bushing ring is embedded into the bulge loop structure butt can be changed after the accommodation hole the terminal surface of the spring strip mounting seat.

As a further improvement of the utility model, a plurality of limiting bulges are arranged on the peripheral ring of the convex ring structure at intervals upwards, and scales are respectively marked corresponding to the limiting bulges;

the end face of the elastic strip mounting seat is provided with a plurality of end protrusions corresponding to the containing holes at intervals along the circumferential direction, and gaps which can be used for embedding the limiting protrusions are formed between the adjacent two end protrusions.

As a further improvement of the utility model, two the bullet strip mount pad is followed the diagonal setting of iron tie plate to at each the bolt hole has been seted up to one side of bullet strip mount pad for the anchor bolt passes.

As a further improvement, the utility model also comprises a second elastic backing plate and an insulating buffer backing plate, wherein the second elastic backing plate and the insulating buffer backing plate are arranged between the iron backing plate and the ballast bed along the vertical direction.

As a further improvement of the present invention, the eccentric bushing ring has a plurality of optional dimensions, and each of the eccentric distance of the eccentric bushing ring is different, that is, the distance between the eccentric hole axis and the main body axis is different.

As a further improvement, the eccentric distance is 2-8 mm.

As a further improvement of the present invention, the longitudinal width of the first elastic backing plate is not greater than the longitudinal width of the iron backing plate, and backing plate locating parts are respectively disposed on two longitudinal sides of the iron backing plate;

the base plate limiting part is arranged on the side wall surface of the iron base plate and protrudes out of the top surface of the iron base plate in the vertical direction.

The above-described improved technical features may be combined with each other as long as they do not conflict with each other.

Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:

(1) the utility model discloses a split type height-adjusting fastener system suitable for e type bullet strip, it is through corresponding setting up bullet strip mount pad on the iron tie plate, and correspond it and set up the eccentric bushing ring in pairs, and set up first bullet backing plate between iron tie plate and rail bottom, utilize the rotation regulation of eccentric bushing ring and the corresponding change of first bullet backing plate, can realize the quick adjustment of rail height on the basis of not whole anchor bolt of unscrewing, threaded connection that has avoided because of anchor bolt dismouting many times to become invalid, the reliability after the adjustment is used many times of fastener system has been ensured, the life of fastener system has been prolonged, the application cost of fastener system has been reduced;

(2) the utility model discloses a split type height-adjusting fastener system suitable for e type bullet strip, it is through setting up the bulge loop structure in the tip periphery of the eccentric bushing ring, and set up a plurality of spacing archs at the periphery of bulge loop structure along the hoop interval, and set up the tip arch at the peripheral upward corresponding interval of holding hole, utilize the corresponding spacing of spacing arch between the adjacent both ends arch, can realize the reliable locking after the eccentric bushing ring adjusts to target in place, prevent the rotation of the eccentric bushing ring, ensure the application reliability of the eccentric bushing ring;

(3) the utility model discloses a split type height-adjusting fastener system suitable for e type bullet strip, it sets up the longitudinal width of first bullet backing plate through the preferred to set up the backing plate locating part respectively in iron backing plate both sides, can effectively promote the reliability that first bullet backing plate set up;

(4) the utility model discloses a split type height-adjusting fastener system suitable for e type bullet strip, it utilizes the eccentric lining lantern ring of different eccentric distances to change and adjust in pairs through setting up the eccentric lining lantern ring to have the optional form of multiple size specification, can greatly promote the flexibility of fastener system height control, satisfies the rail height control under the different environment, reduces the application cost of fastener system;

(5) the utility model discloses a split type height-adjusting fastener system suitable for e type bullet strip, its simple structure, it is simple and convenient to adjust, can realize the altitude mixture control of fastener system fast on the basis of anchor bolt not unscrewing, has promoted the efficiency of fastener system altitude mixture control, has avoided anchor bolt because of the inefficacy risk that many times dismouting leads to, has ensured the application reliability of fastener system, has reduced the application cost of fastener system, has better application prospect and spreading value.

Drawings

Fig. 1 is a schematic cross-sectional view of a split height-adjustable fastener system according to an embodiment of the present invention;

fig. 2 is a top view of a split height fastener system according to an embodiment of the present invention;

FIG. 3 is a schematic perspective view of an eccentric bushing ring according to an embodiment of the present invention;

FIG. 4 is a top view of an embodiment of the present invention;

in all the figures, the same reference numerals denote the same features, in particular: 1. an eccentric bushing ring, 101, an eccentric hole, 102, a limit bulge; 2. elastic strips, 3 iron backing plates, 301 end parts are raised, and 302 bolt holes are formed; 4. the track comprises a first elastic backing plate, 5 second elastic backing plates, 6 insulating buffer backing plates, 7 insulating track gauge blocks, 8 insulating sleeves, 9 anchoring bolts, 10 ballast beds and 11 steel rails.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example (b):

the split height-adjustable fastener system suitable for e-shaped spring strips in the preferred embodiment of the present invention is shown in fig. 1 and 2. Specifically, the split height-adjustable fastener system may be used to fix the rail 11 at a corresponding position on the track bed 10, select a corresponding pad between the rail 11 and the track bed 10 according to the designed height of the rail 11, and pre-embed the insulating sleeve 8 at the corresponding position of the track bed 10 for subsequent connection of the anchor bolts 9.

More specifically, the split fastener system in the preferred embodiment includes an eccentric bushing ring 1, a spring bar 2, an iron backing plate 3, a first spring backing plate 4, a second spring backing plate 5, an insulating buffer backing plate 6, and an insulating gauge block 7. Wherein, first bullet backing plate 4, iron tie plate 3, second bullet backing plate 5, insulating buffer backing plate 6 from top to bottom stack gradually the setting between rail 11 and railway roadbed 10, and first bullet backing plate 4 is the bullet backing plate under the rail promptly, and second bullet backing plate 6 is the bullet backing plate under the iron tie plate.

Further, elastic strip mounting seats are respectively arranged at both ends of the upper end face of the iron shim plate 3 in the transverse direction (the transverse direction is perpendicular to the longitudinal direction of the steel rail, namely the transverse cross-sectional direction of the steel rail), the two elastic strip mounting seats are preferably arranged along the diagonal line, and bolt holes 302 are respectively arranged at both sides of the two elastic strip mounting seats, as shown in fig. 4. Cylindrical containing holes are formed in each elastic strip mounting seat along the longitudinal direction and used for containing the eccentric bushing ring 1 correspondingly.

Correspondingly, in order to fix the second elastic backing plate 5 and the insulating buffer backing plate 6, through holes are respectively formed in the two backing plates corresponding to the bolt holes 302 and used for fixing the anchor bolt 9 in a penetrating manner; and first bullet backing plate 4 sets up between two bullet strip mount pads, and its horizontal length is not more than the horizontal distance of two bullet strip mount pads, and vertical length is not more than the longitudinal width of iron tie plate 3, and vertical compressing tightly through the rail and spacing. Preferably, the iron backing plate 3 is provided with backing plate position limiting parts on two longitudinal sides thereof, which are correspondingly disposed on the side wall surfaces of the iron backing plate 3 and extend upward to protrude from the upper end surface of the iron backing plate 3, so as to form a boss or a raised line structure for limiting two longitudinal sides of the first elastic backing plate 4.

Further, the eccentric bushing ring 1 in the preferred embodiment is as shown in fig. 3, and its main body is a cylindrical structure, and the middle part is eccentrically provided with an eccentric hole 101, and the axis of the eccentric hole 101 is parallel to the axis of the cylindrical main body of the eccentric bushing ring 1, and is used for matching with the mounting end of the elastic strip 2.

Further specifically, a cylindrical through hole is formed in the elastic strip mounting seat along the longitudinal direction corresponding to the eccentric bushing ring 1 and used for being matched with a main body gap of the eccentric bushing ring 1; meanwhile, the eccentric bushing ring 1 in the preferred embodiment is of a stepped shaft structure, and a convex ring structure with an outer diameter larger than that of the main body is formed at one axial end of the eccentric bushing ring 1 and is used for abutting against the side wall surface of the elastic strip mounting seat after the eccentric bushing ring 1 is embedded into the elastic strip mounting seat.

Preferably, a plurality of limit protrusions 102 are arranged at intervals upwards on the peripheral ring of the convex ring structure, and scales are arranged at the end part of the eccentric bushing ring 1 according to the distance between each limit protrusion 102 and the axis of the eccentric hole 101 so as to guide the corresponding adjustment of the fastener system. Further preferably, a plurality of end protrusions 301 are arranged at the end of the elastic strip mounting seat along the circumferential direction of the cylindrical through hole, a gap capable of accommodating the limiting protrusion 102 is formed between the adjacent two end protrusions 301, and the eccentric bushing ring 1 which is rotationally adjusted in place is embedded into the gap through the limiting protrusions 102 at the corresponding positions, so that the eccentric bushing ring 1 is prevented from rotating in the using process.

In a preferred embodiment, the first elastic cushion plate 4 and the eccentric bushing ring 1 form an elevation assembly, and according to the elevation requirement of the steel rail 11, the first elastic cushion plate 4 with a corresponding thickness can be selected, and the eccentric bushing ring 1 is locked after being rotated to a proper position. Meanwhile, in order to increase the flexibility of adjustment of the eccentric bush ring 1, the eccentric bush ring 1 in the preferred embodiment has various size specifications selectable, and the eccentric distance of each eccentric bush ring 1 is different, that is, the distance between the eccentric hole axis and the main body axis is different. Further preferably, in practical application, the selectable range of the eccentric distance is 2mm to 8 mm.

For example, when the distance from the axis of the eccentric hole 101 to the bottom surface of the iron base plate 3 is a and the thickness of the first spring base plate 4 is b in the initial zero position of the fastener system, the fastener system is pressed on the first spring base plate 4 by the fastening end of the elastic strip 2 through the two insulating gauge blocks 7 on the two sides of the steel rail 11. When the height c of the steel rail 11 needs to be adjusted vertically (the height c is increased when the height c is a positive value, and is decreased when the height c is a negative value), the anchor bolt 9 is firstly unscrewed (the eccentric bushing ring 1 is unscrewed without being unscrewed integrally), then the eccentric bushing ring 1 is axially pulled out for a certain distance, so that the end part bulge 301 releases the locking of the limiting bulge 102, then the eccentric bushing ring 1 is correspondingly rotated, the distance from the axis of the eccentric hole 101 to the bottom surface of the iron base plate 3 is (a + c), after the eccentric bushing ring 1 is rotated to the position, the eccentric bushing ring 1 is controlled to axially move for a certain distance, the limiting bulge 102 at the corresponding position is embedded into a gap between the end part bulges 301, and the annular locking of the eccentric; meanwhile, the first elastic backing plate 4 with the thickness of (b + c) is replaced at the bottom of the steel rail 11, and then the anchoring bolt 9 is locked, so that the corresponding adjustment of the vertical height of the steel rail 11 can be completed.

The heightening/lowering process is realized through the matching of the heightening assembly, the heightening range is-2-8 mm, when the steel rail needs to be heightened or lowered in a larger range, the heightening/lowering process can be realized through matching with the second elastic base plate 5 with a corresponding thickness, at the moment, the whole anchoring bolt 9 needs to be taken down, and the second elastic base plate 5 is locked with the applied anchoring bolt 9 after being replaced.

The utility model provides a split type height-adjusting fastener system suitable for e type bullet strip, its simple structure, it is simple and convenient to adjust, through the corresponding cooperation setting of eccentric bushing ring and first bullet backing plate, can accomplish the regulation of track height under the condition of incompletely taking off anchor bolt, promote the track and turn up/down's efficiency, guarantee the stability and the reliability of long-time application of fastener system; simultaneously, through corresponding scale and spacing arch of setting up on the eccentric bushing ring, can further promote the efficiency and the accuracy of adjusting, guarantee the reliability that the eccentric bushing ring used or set up, reduce the application cost of split type height-adjusting fastener system, have better application prospect and spreading value.

It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims

1. A split heightening fastener system suitable for an e-shaped elastic strip comprises an iron base plate and the elastic strip, and is characterized by further comprising a first elastic base plate and eccentric bushing rings arranged in pairs;

2. The split height-adjustable fastener system for e-type spring strips according to claim 1, wherein the outer periphery of the end of the eccentric bushing ring is provided with a convex ring structure along the circumferential direction, and the convex ring structure can be changed to abut against the end surface of the spring strip mounting seat after the eccentric bushing ring is embedded into the accommodating hole.

3. The split height-adjustable fastener system for e-type spring strips according to claim 2, wherein a plurality of limiting protrusions are arranged at intervals upwards on the peripheral ring of the convex ring structure, and scales are respectively marked on the limiting protrusions;

4. The split height-adjustable fastener system suitable for e-shaped elastic strips according to any one of claims 1 to 3, wherein two elastic strip installation seats are arranged along a diagonal line of the iron base plate, and a bolt hole is formed in one side of each elastic strip installation seat for an anchoring bolt to pass through.

5. The split height-adjustable fastener system suitable for e-shaped elastic strips according to any one of claims 1 to 3, further comprising a second elastic backing plate and an insulating buffer backing plate, which are sequentially arranged between the iron backing plate and the ballast bed along the vertical direction.

6. The split height fastener system for an e-type spring bar according to any one of claims 1 to 3, wherein the eccentric bushing rings have a plurality of selectable size specifications, and the eccentric distance of each eccentric bushing ring is different, namely the distance between the eccentric hole axis and the main body axis is different.

7. The split height-adjustable fastener system for e-type spring strips of claim 6, wherein the off-center distance is 2-8 mm.

8. The split height-adjustable fastener system suitable for the e-shaped elastic strip according to claim 1, 2, 3 or 7, wherein the longitudinal width of the first elastic backing plate is not more than that of the iron backing plate, and backing plate limit parts are respectively arranged on two longitudinal sides of the iron backing plate;