CN214572984U

CN214572984U - Wide and short enhanced bridge sleeper structure

Info

Publication number: CN214572984U
Application number: CN202120405986.6U
Authority: CN
Inventors: 张金段; 陈扬; 翟玉桥; 冯涛
Original assignee: Hebei Shouke Railway Equipment Co ltd
Current assignee: Hebei Shouke Railway Equipment Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-11-02
Anticipated expiration: 2031-02-24

Abstract

The utility model discloses a wide short enhancement mode bridge sleeper structure, including bridge sleeper, stock rail and guardrail set firmly on the bridge sleeper through the fastener respectively side by side or through the adaptation angle, and the stock rail is located to the guardrail inboard, and the bridge sleeper is wide short enhancement mode structure, and its appearance size is: go up wide 550mm under the wide 450mm, thickness 160mm, the bridge sleeper adopts intensive laying structure, interval between two adjacent bridge sleeper centers is 570mm, it is 1750 piece/km to lay the quantity, the bridge sleeper is equipped with the first track groove that is used for the stock rail installation and is used for the second track groove of guardrail rail installation, first track groove and second track groove are equipped with the fender shoulder and the bolt hole that are used for the fastener installation, be equipped with the connecting plate that is used for fixing the end connection of two bridge sleepers and compresses tightly the stock rail between two adjacent bridge sleepers. This bridge sleeper structure is more abundant and even to train impact force dispersion, has reduced the impact force and has brought the potential safety hazard to train and bridge to provide more spaces for railway bridge and highway bridge construction.

Description

Wide and short enhanced bridge sleeper structure

Technical Field

The utility model belongs to the technical field of the transportation track, specific theory relates to a wide short enhancement mode bridge sleeper structure.

Background

The bridge sleepers adopted on the conventional common-speed railway bridge are II-type bridge sleepers and III-type bridge sleepers. The shape and size of the II type bridge pillow are as follows: the upper width is 166.5mm, the lower width is 274.5mm, and the thickness is 220 mm; the shape size of the III type bridge pillow is as follows: the upper width is 245mm, the lower width is 320mm, the thickness is 220mm, the paving number is 1666/km, the distance between the centers of two adjacent bridge sleepers is 600mm, and a ballast track bed is adopted. Track boards are paved on the high-speed railway bridge and are ballastless track beds, the lengths of the track boards in the track direction are 4962mm, 3685mm and 4856mm respectively, the thickness of the track boards is 190mm, the track boards and the track beds are poured into a whole, the integrity is strong, the train runs stably, and the stress of the bridge is uniform. The general speed railway bridge is provided with II-type bridge sleepers and III-type bridge sleepers which are arranged on railway ballasts, and the bridge sleepers are connected into a whole by means of guard rails and used for dispersing impact force of stock rails from trains.

With the rapid development of railways in China, the speed of a common-speed railway train is increased to 250km/h, and the quasi-high speed is achieved. The pressure of impact force from a train on a stock rail is too large, the existing bridge sleeper structure cannot fully disperse the train impact force transmitted by the stock rail, so that the stock rail is sheared to collapse, misplace and displace, further the change of a rail gauge is caused, wheel set derailment can be caused in serious cases, and the risk is brought to train operation; the impact force is not distributed uniformly, so that the risk caused by unbalanced stress of the bridge is increased; in addition, the intersection of railway bridges and highway bridges limits the height space of each bridge, so every inch of space occupied by track construction is valuable.

For the reasons, the whole development level of the railway in China is limited by the structural limitation of the original bridge sleeper. Therefore, a wide and short reinforced bridge sleeper structure is designed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wide short enhancement mode bridge sleeper structure for solve current bridge sleeper structure to train impact force dispersion ability limited and bring the problem of potential safety hazard to train and bridge, and provide more spaces for railway bridge and highway bridge construction.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a wide short enhancement mode bridge sleeper structure, includes bridge sleeper, stock rail and guardrail, and stock rail and guardrail set firmly on the bridge sleeper through the fastener respectively side by side or through the adaptation angle, and the stock rail is located to the guardrail inboard, the bridge sleeper is wide short enhancement mode structure, and its appearance size is: go up wide 550mm under the wide 450mm, thickness 160mm, the bridge sleeper adopts intensive laying structure, and the interval between two adjacent bridge sleeper centers is 570mm, and it is 1750 root/km to lay quantity, the bridge sleeper is equipped with the first track groove that is used for the stock rail installation and is used for the second track groove of guardrail rail installation, and first track groove and second track groove are equipped with and are used for keeping off shoulder and bolt hole of fastener installation, are equipped with the connecting plate that is used for fixing the end connection of two bridge sleepers and compresses tightly the stock rail between two adjacent bridge sleepers.

Further, the connecting plate is the integrated into one piece structure, and connecting plate one side is equipped with the portion of compressing tightly of buckling that is used for compressing tightly the stock rail, and the opposite side is equipped with the U type buffering portion that is used for reducing the train impact force, and the connecting plate both ends are equipped with and are used for with the fixed bolt hole of bridge sleeper end connection, first track groove both sides be equipped with the mount table and the U type groove of connecting plate adaptation.

Furthermore, the connecting plate is of a split structure, the connecting plate comprises two connecting plate splits which are used for compressing the stock rails and are fixedly connected with the end parts of the bridge sleepers, and the two connecting plate splits are fixedly connected through a transition plate.

Further, connecting plate components of a whole that can function independently one side is equipped with the portion of compressing tightly of buckling that is used for compressing tightly the stock rail, and the opposite side is equipped with the U type buffering portion that is used for reducing the train impact force, and the connecting plate is equipped with and is used for the bolt hole fixed with the end connection of bridge sleeper, and first track groove both sides are equipped with mount table and the U type groove with connecting plate components of a whole that can function independently adaptation.

Furthermore, the two ends of the transition plate are provided with bolt holes which are fixedly connected with the end parts of the bridge sleepers, and the middle part of the transition plate is provided with an arc-shaped buffer part for reducing the impact force between the two bridge sleepers.

Furthermore, the angle of the shoulder is 110 degrees, and the corner of the shoulder is in arc angle transition.

Furthermore, the bridge sleeper is formed by pouring concrete, and polypropylene fibers for enhancing the reinforcement of the bridge sleeper are doped in the concrete.

Furthermore, the guard rail comprises a straight section and a bent section, the second rail groove is matched with the bent angle of the straight section and the bent section of the guard rail, and the bent section of the end part of the guard rail is fixedly connected with the bridge sleeper through the shuttle head.

The utility model discloses owing to adopted foretell structure, it compares with prior art, and the technical progress who gains lies in: the load strength of the bridge sleeper is improved and the height space on the bridge is saved by changing the overall dimension of the bridge sleeper into a wide and short reinforced bridge sleeper structure; the dense laying structure is adopted for the bridge sleepers, so that the laying distance between the adjacent bridge sleepers is reduced, the laying number of the bridge sleepers in unit distance is increased, and the impact force of the train is dispersed more fully and uniformly; make each bridge sleeper middle part connect fixedly through setting up the guardrail, make the both ends of adjacent two bridge sleepers also obtain fixedly through setting up the connecting plate to make each bridge sleeper stable connection more fix and become a whole, the impact force that acts on the stock rail when the train passes through can evenly distributed to the bridge through overall structure's bridge sleeper, the connecting plate has still further strengthened the joint strength of bridge sleeper with the stock rail, prevents the displacement and the toppling of stock rail.

To sum up, the utility model discloses the bridge sleeper structure is more abundant and even to the train impact force dispersion, has effectively reduced the impact force and has brought the potential safety hazard to train and bridge to can provide more spaces for railway bridge and highway bridge construction, be applicable to transportation track technical field.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of the connection between the stock rail and the bridge sleeper according to the embodiment of the present invention;

fig. 3 is a schematic structural view of an embodiment of the bridge sleeper;

fig. 4 is a schematic structural view of a connecting plate in an embodiment of the present invention;

fig. 5 is another schematic structural diagram of the connecting plate in the embodiment of the present invention;

FIG. 6 is a schematic structural view of a split connection plate in an embodiment of the present invention;

fig. 7 is a schematic structural diagram of the transition plate in the embodiment of the present invention.

Labeling components: 1-basic rail, 2-bridge sleeper, 21-second rail groove, 22-first rail groove, 23-mounting table, 24-U-shaped groove, 3-guard rail, 4-shuttle head, 5-connecting plate, 501-bending pressing part, 502-U-shaped buffer part, 51-connecting plate split body, 52-transition plate, 521-arc buffer part and 6-fastener.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.

The utility model discloses a short enhancement mode bridge sleeper structure of width, as shown in figure 1, including bridge sleeper 2, stock rail 1 and guardrail 3 set firmly on bridge sleeper 2 through fastener 6 respectively side by side or through the adaptation angle, and 1 inboards of stock rail are located to guardrail 3, bridge sleeper 2 is the short enhancement mode structure of width, and its appearance size is: go up wide 550mm under the wide 450mm, thickness 160mm, bridge sleeper 2 adopts intensive laying structure, and the interval between two adjacent bridge sleeper 2 centers is 570mm, and it is 1750 root/km to lay the quantity, as shown in figure 2, fig. 3, bridge sleeper 2 is equipped with first track groove 22 that is used for the installation of stock rail 1 and the second track groove 21 that is used for guard rail 3 installation, and first track groove 22 and second track groove 21 are equipped with the fender shoulder and the bolt hole that are used for fastener 6 to install, are equipped with between two adjacent bridge sleepers 2 to be used for the end connection of two bridge sleepers 2 fixed with compress tightly the connecting plate 5 of stock rail 1. At least one side of each stock rail 1 is provided with a connecting plate 5, the connecting plates 5 are fixed at the end parts of the two bridge sleepers 2 in an overlapping manner, specifically, the connecting plates 5 are arranged on two sides of each stock rail 1 in the embodiment, and the connecting plates 5 are used for compressing and fixing the stock rails 1 while connecting and fixing the end parts of the two adjacent bridge sleepers 2, so that the stock rails are more stably connected with the bridge sleepers 2.

The beneficial effects of the utility model reside in that: the external dimension of the bridge sleeper 2 is changed into a wide and short reinforced bridge sleeper structure, so that the load strength of the bridge sleeper 2 is improved, and the height space on the bridge is saved; the dense laying structure is adopted for the bridge sleepers 2, so that the laying distance between the adjacent bridge sleepers 2 is reduced, the laying number of the bridge sleepers 2 in unit distance is increased, and the impact force of the train is dispersed more fully and uniformly; make each bridge sleeper 2 middle part connect fixedly through setting up guardrail 3, make the both ends of two adjacent bridge sleepers 2 also obtain fixedly through setting up connecting plate 5, thereby make each bridge sleeper 2 stable connection fix more and become a whole, the impact force that acts on stock rail 1 when the train passes through can evenly distributed to the bridge on through overall structure's bridge sleeper 2, connecting plate 5 has still further strengthened bridge sleeper 2 and stock rail 1's joint strength, prevent stock rail 1's displacement and toppling.

As a preferred embodiment, as shown in fig. 4, the connecting plate 5 is an integrally formed structure, one side of the connecting plate 5 is provided with a bending pressing portion 501 for pressing the stock rail 1, the other side is provided with a U-shaped buffer portion 502 for reducing the impact force of the train, two ends of the connecting plate 5 are provided with bolt holes for connecting and fixing with the end of the bridge sleeper 2, and two sides of the first rail groove 22 are provided with an installation platform 23 and a U-shaped groove 24 which are matched with the connecting plate 5. First track groove 22 bilateral symmetry is equipped with mount table 23, and mount table 23 is less than first track groove 22 height to in the location of connecting plate 5, the both ends of mount table 23 are located in U type groove 24, and U type groove 24 is the contained angle slope setting with mount table 23, be equipped with on the mount table 23 with the bolt hole of connecting plate 5 adaptation. While the middle parts of the bridge sleepers 2 are fixedly connected through the guard rails 3, the end parts of the two adjacent bridge sleepers 2 are fixedly connected through the two ends of the connecting plate 5 through the fixing bolts, so that the middle parts and the end parts of the bridge sleepers 2 are fixedly connected at the same time, a whole is formed more stably, the uniform distribution of train impact force is facilitated, and the impact force is dispersed more uniformly; in addition, when the connecting plate 5 receives lateral impact force transmitted by the train, namely the stock rail 1 receives shearing action force, the U-shaped buffer part 502 can be compressed, the impact force is buffered and weakened, the damage to the stock rail 1 caused by the action of the shearing force is reduced, and meanwhile, the lateral creeping of the stock rail 1 is reduced.

As another preferred embodiment, as shown in fig. 5, the connecting plate 5 is a split structure, the connecting plate 5 includes two connecting plate split bodies 51 for pressing the stock rail 1 and fixedly connecting with the end of the bridge sleeper 2, and the two connecting plate split bodies 51 are fixedly connected by a transition plate 52. As shown in fig. 6, the connection plate split 51 is provided with a bending pressing portion 501 for pressing the stock rail 1 at one side, a U-shaped buffer portion 502 for reducing the impact force of the train at the other side, the connection plate 5 is provided with bolt holes for connecting and fixing with the end of the bridge sleeper 2, and the first rail groove 22 is provided with an installation platform 23 and a U-shaped groove 24 which are matched with the connection plate split 51. As shown in fig. 7, bolt holes connected and fixed to the ends of the bridge sleepers 2 are provided at both ends of the transition plate 52, and an arc-shaped buffer portion 521 for reducing the impact force between the two bridge sleepers 2 is provided at the middle of the transition plate 52. The connecting plate 5 adopts a split structure, and the two connecting plate splits 51 are fixedly connected through the transition plate 52, so that on one hand, the function of the connecting plate 5 integrally formed in the embodiment is the same as that of the connecting plate 5; on the other hand, when the bridge sleepers 2 are subjected to impact force which is brought by a train and enables the bridge sleepers 2 to approach or separate from each other, the arc-shaped buffer parts 521 in the middle of the transition plates 52 are compressed or expanded, the impact force is buffered and weakened, and relative creeping between the bridge sleepers 2 is avoided.

As a preferred embodiment, the angle of the retaining shoulder is 110 degrees, and the corner of the retaining shoulder adopts a circular arc angle transition. The angle of the retaining shoulder is reduced from the existing 120 degrees to 110 degrees, so that the fastener 6 can be effectively prevented from climbing, and the lateral displacement of the stock rail 1 is prevented; meanwhile, in order to reduce process cracks caused by the angle of 110 degrees of the retaining shoulder, arc angle transition or movable model shell production is adopted, and the cracks are reduced. The bridge sleeper 2 is formed by pouring concrete, and polypropylene fibers for increasing the load strength of the bridge sleeper 2 are doped in the concrete to enhance the load strength of the bridge sleeper 2 and offset load reduction caused by thickness reduction. The guard rail 3 comprises a straight section and a bent section, the second rail groove 21 is matched with the bent angles of the straight section and the bent section of the guard rail 3, and the bent section of the end part of the guard rail 3 is fixedly connected with the bridge sleeper 2 through the shuttle head 4.

To sum up, the utility model discloses 2 structures of bridge sleeper are more abundant and even to the train impact force dispersion, have effectively reduced the impact force and have brought the potential safety hazard to train and bridge to can provide more spaces for railway bridge and highway bridge construction, be applicable to transportation track technical field.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the protection of the claims of the present invention.

Claims

1. The utility model provides a wide short enhancement mode bridge sleeper structure, includes bridge sleeper, stock rail and guardrail set firmly on the bridge sleeper through the fastener respectively side by side or through the adaptation angle, and the stock rail is located to the guardrail inboard, its characterized in that: the bridge sleeper is of a wide and short reinforced structure, and the external dimensions are as follows: go up wide 550mm under the wide 450mm, thickness 160mm, the bridge sleeper adopts intensive laying structure, and the interval between two adjacent bridge sleeper centers is 570mm, and it is 1750 root/km to lay quantity, the bridge sleeper is equipped with the first track groove that is used for the stock rail installation and is used for the second track groove of guardrail rail installation, and first track groove and second track groove are equipped with and are used for keeping off shoulder and bolt hole of fastener installation, are equipped with the connecting plate that is used for fixing the end connection of two bridge sleepers and compresses tightly the stock rail between two adjacent bridge sleepers.

2. A wide and short reinforced bridge sleeper structure as defined in claim 1, wherein: the connecting plate is the integrated into one piece structure, and connecting plate one side is equipped with the portion of compressing tightly of buckling that is used for compressing tightly the stock rail, and the opposite side is equipped with the U type buffering portion that is used for reducing the train impact force, and the connecting plate both ends are equipped with and are used for the bolt hole fixed with the end connection of bridge sleeper, first track groove both sides be equipped with the mount table and the U type groove of connecting plate adaptation.

3. A wide and short reinforced bridge sleeper structure as defined in claim 1, wherein: the connecting plate is of a split structure, the connecting plate comprises two connecting plate splits which are used for compressing the stock rails and fixedly connected with the end parts of the bridge sleepers, and the two connecting plate splits are fixedly connected through a transition plate.

4. A wide and short reinforced bridge sleeper structure as defined in claim 3, wherein: the connecting plate components of a whole that can function independently one side is equipped with the portion of compressing tightly of buckling that is used for compressing tightly the stock rail, and the opposite side is equipped with the U type buffering portion that is used for reducing the train impact force, and the connecting plate is equipped with the bolt hole that is used for with the bridge sleeper end connection fixed, and first track groove both sides are equipped with the mount table and the U type groove with connecting plate components of a whole that can function independently adaptation.

5. A wide and short reinforced bridge sleeper structure as defined in claim 3, wherein: the two ends of the transition plate are provided with bolt holes which are fixedly connected with the end parts of the bridge sleepers, and the middle part of the transition plate is provided with an arc-shaped buffer part for reducing the impact force between the two bridge sleepers.

6. A wide and short reinforced bridge sleeper structure as defined in claim 1, wherein: the angle of the shoulder is 110 degrees, and the corner of the shoulder is in arc angle transition.

7. A wide and short reinforced bridge sleeper structure as defined in claim 1, wherein: the bridge sleeper is formed by pouring concrete, and polypropylene fibers for enhancing the reinforcement of the bridge sleeper are doped in the concrete.

8. A wide and short reinforced bridge sleeper structure as defined in claim 1, wherein: the guard rail comprises a straight section and a bent section, the second rail groove is matched with the bent angle of the straight section and the bent section of the guard rail, and the bent section at the end part of the guard rail is fixedly connected with the bridge bolster through the shuttle head.