CN217997678U

CN217997678U - Damping type city rail turnout switch

Info

Publication number: CN217997678U
Application number: CN202221331175.7U
Authority: CN
Inventors: 田苗盛; 张奔; 张春雷; 刘道通; 霍新伟; 陈敦昌; 谭大正
Original assignee: China Railway Design Corp
Current assignee: China Railway Design Corp
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-12-09
Anticipated expiration: 2032-05-18

Abstract

The utility model relates to a damping type city track switch ware, including stock rail, switch rail, rail joint design and goat damping bearing structure, the stock rail includes straight stock rail and bent stock rail, the switch rail includes curve switch rail and sharp switch rail, bent stock rail is used for the side stock with curve switch rail to pass, straight stock rail is used for the straight stock with straight switch rail to pass, be connected through the spacer bar between straight stock rail and curve switch rail, bent stock rail passes through the spacer bar with straight switch rail and is connected, rail joint design sets up in adjacent rail junction, goat damping bearing structure sets up in city rail line walking rail below, has reduced the gauge change rate in the switch rail scope, has improved the operation stationarity of train in the switch rail scope, and then has reduced the vibration influence of train to peripheral building in the root, and damping type bearing structure adopts the lock formula structure simultaneously, has made things convenient for later stage engineering department's maintenance simultaneously.

Description

Damping type city rail turnout switch

Technical Field

The utility model relates to a traffic engineering field, concretely relates to damping type city track switch.

Background

The rail transit has the advantages of large capacity, high speed, high punctuality rate, comfort, novelty and the like, has complementarity with the traditional traffic such as high-speed rail, aviation, public transportation and the like, and is a transportation tool with good development prospect. But the construction of rail transit also brings partial environmental pollution to residents along the line. Switches are important subsystems of a track system, and directly influence the safe operation of the track system and even the whole track traffic system. The switches can be divided into different numbers according to different frog angles, including No. 9 switch, no. 7 switch, no. 12 switch, etc. The bigger the number of turnout points, the larger the straight and side direction passing speed, and vice versa. At present, the main line in the rail transit generally adopts 9 turnouts, and part of special sections can also adopt 12 turnouts. The No. 9 turnout can be divided into a straight switch point turnout and a curved switch point turnout according to the difference of the switch machines; according to the different materials of the switch tie, the switch tie can be divided into a concrete switch and a wood switch. At present, a 9-number turnout is usually adopted in a track traffic main line, and in order to meet the specification requirement, the lateral passing speed is not less than 35km/h, and the straight passing speed is not less than 80km/h. The switch heel end can be elastically bent or articulated by a movable joint. When the No. 9 turnout is used on a main track, a concrete sleeper is generally adopted, and the frog part is a high manganese steel block casting frog which is generally used with the state railway. The points of the switch have a great influence on the running stability of the train due to the difference of the switch rails. The turnout is one of three weak links of a track, the structure of the turnout is particularly complex, and the number of parts is very large, so that the first place is to ensure the safe operation of the turnout. Normally, switches are used in a line as a whole, and the standards of the whole line are unified. However, along with the construction of rail transit, the crossing of buildings under the line is inevitable, and sometimes the turnout is normally arranged near a sensitive point, but the turnout is required to guide a train to pass safely and avoid the vibration influence on the sensitive buildings along the line. Therefore, the problem of turnout vibration reduction is applied, and vibration reduction type turnouts need to be developed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a damping type city track switch ware has reduced the vibration influence that produces when city rail train moves through multi-level structural design.

In order to realize the above-mentioned purpose, the utility model provides a damping type city track switch, including stock rail, switch rail, rail joint design and goat damping bearing structure, the stock rail includes straight stock rail and curved stock rail, the switch rail includes curve switch rail and sharp switch rail, curved stock rail is used for the side stock with the curve switch rail to pass, straight stock rail is used for the straight stock with the sharp switch rail to pass, be connected through the spacer bar between straight stock rail and the curve switch rail, the curved stock rail passes through the spacer bar with the sharp switch rail and is connected, the rail joint design sets up in adjacent rail junction, goat damping bearing structure sets up in city rail circuit walking rail below.

Preferably, the front ends of the curved switch rail and the straight switch rail are respectively connected with a connecting rod through a pull rod.

Furthermore, the working edge of the straight switch rail is a straight line.

Preferably, the rail joint structure includes joint splint and connecting bolt, the joint splint include flange joint splint and flat joint splint, the flange joint splint set up in the urban rail line rail outside, the flat joint splint set up in urban rail line rail inboard, the flange joint splint pass through connecting bolt with the flat joint splint and are connected.

Preferably, the goat damping bearing structure includes damping type slide plate, two holes damping type bearing structure and three holes damping type bearing structure, damping type slide plate set up in the switch blade tip, two holes damping type bearing structure set up in urban rail circuit rail middle part, three holes damping type bearing structure set up in urban rail circuit goat end.

Further, the damping slide plate comprises a slide plate body, two lower iron base plates with holes, a fastening structure, a locking structure, a damping element, an anchor bolt and an elastic strip, wherein the damping element is arranged between the slide plate body and the two lower iron base plates, the slide plate body, the two lower iron base plates and the damping element are fixed through the fastening structure, the locking structure is arranged at the top end of the fastening structure, the fastening structure is fixed above a city rail line rail switch sleeper through the anchor bolt, and the damping slide plate body is fixedly arranged below a city rail line switch through the elastic strip.

Furthermore, the locking structure 13 is a ribbed cover plate, and the fastening structure 12 and the grooves of the two-hole lower iron base plate 11 are locked by the plate ribs of the locking structure 13.

Further, two hole damping type bearing structure include iron backing plate, two hole iron backing plate, fastening structure and damping element under two holes, be provided with damping element in the middle of two hole iron backing plate and two hole iron backing plate on two holes, two hole iron backing plate and damping element pass through fastening structure fixed connection down.

Further, iron backing plate under three hole damping type bearing structure includes iron backing plate, fastening structure, damping element and three holes on three holes, be provided with damping element in the middle of iron backing plate under iron backing plate and three holes on three holes, iron backing plate, three holes are gone up in three holes and are passed through fastening structure fixed connection with damping element down iron backing plate.

Compared with the closest prior art, the utility model discloses beneficial effect who has:

the vibration reduction type supporting structure is arranged below the running rail, so that a low-rigidity elastic foundation is provided for the running rail, and the vibration isolation effect of the train in the range of turnouts is realized; the linear working edge is arranged on the linear switch rail working edge, so that the track gauge change rate in the switch rail range is reduced, and the running stability of the train in the turnout range is improved. And further radically reduces the vibration influence of the train on surrounding buildings. The damping type switch adopts a double-layer nonlinear damper, so that the influence of train vibration on surrounding buildings can be effectively reduced; in addition, the vibration reduction type supporting structure adopts a locking structure, and meanwhile, the maintenance of later-stage work departments is facilitated. The vibration damping type point switch adopts the vibration damping type joint clamping plate, can ensure that a train smoothly passes through a steel rail joint, effectively reduces noise and vibration impact when the train passes through the steel rail, does not change the stress state of a running rail inside a turnout, and can not bring hidden danger to later-stage train operation.

Drawings

Fig. 1 is a main body view of a vibration damping type urban rail turnout provided by the present invention;

fig. 2 is a plan view of a linear point rail of a vibration damping urban rail switch provided by the present invention;

fig. 3 is a diagram of a two-hole double-layer nonlinear supporting member of a vibration damping type urban rail turnout provided by the present invention;

fig. 4 is a diagram of a three-hole double-layer nonlinear supporting member of a vibration damping type urban rail turnout provided by the present invention;

fig. 5 is a cross-sectional view of a damping joint clamp plate of a damping urban rail turnout provided by the present invention;

description of reference numerals:

1. a straight stock rail; 2. a curved stock rail; 3. a curved switch rail; 4. a linear point rail; 5. spacing iron; 6. a pull rod; 7. a connecting rod; 8. a slide chair plate; 9. iron backing plates are arranged on the two holes; 10. an iron backing plate is arranged on the three holes; 11. an iron base plate is arranged below the two holes; 12. a fastening structure; 13. a locking structure; 14. damping joint cleats, 1401, flange joint cleats, 1402, flat joint cleats; 15. a connecting bolt; 16. a damping element; 17. an anchor bolt; 18. a spring bar; 19. and an iron backing plate is arranged below the three holes.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and 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 therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1:

the utility model provides a damping type city track switch, as shown in figure 1, including stock rail, switch rail, rail joint structure and goat damping bearing structure, the stock rail includes straight stock rail 1 and bent stock rail 2, the switch rail includes curve switch rail 3 and sharp switch rail 4, curved stock rail 2 is used for the side strand to pass with curve switch rail 3, straight stock rail 1 is used for the straight strand to pass with sharp switch rail 4, be connected through spacer 5 between straight stock rail 1 and curved switch rail 3, as shown in figure 2, curved stock rail 2 is connected through spacer 5 with sharp switch rail 4, rail joint structure sets up in adjacent rail junction, goat damping bearing structure sets up in city rail line walking rail below, curve switch rail 3 is connected with connecting rod 7 through pull rod 6 with the front end of sharp switch rail 4 respectively, the work limit of sharp switch rail 4 is the straight line, shock absorber bearing structure includes damping type sliding rail, two holes damping type supporting structure and the damping type city rail fastening structure 16, the damping type city rail fastening structure bottom bar 16 is set up in the bottom end of the bottom bar, the bottom bar 16 bottom bar of the damping type rail fastening structure, the bottom bar fastening structure is set up in the bottom bar of the city rail fastening 16 bottom bar, the damping type bottom bar fastening structure, the bottom bar fastening structure 16 bottom bar fastening structure with the bottom bar fastening structure, the city rail fastening structure 16 bottom bar fastening of the city rail fastening structure, the city rail fastening structure 16 bottom bar fastening structure, the locking structure 13 is arranged at the top end of the fastening structure 12, the fastening structure 12 is fixed above the city rail line rail switch tie through an anchor bolt 17, the vibration-damping slide plate is fixedly arranged below the city rail line switch through an elastic strip 18, the two-hole vibration-damping support structure comprises a two-hole upper iron base plate 9, a two-hole lower iron base plate 11, a fastening structure 12 and a vibration-damping element 16, the vibration-damping element 16 is arranged between the two-hole upper iron base plate 9 and the two-hole lower iron base plate 11, the two-hole upper iron base plate 9, the two-hole lower iron base plate 11 and the vibration-damping element 16 are fixedly connected through the fastening structure 12, as shown in figure 4, the three-hole vibration-damping support structure comprises a three-hole upper iron base plate 10, a fastening structure 12, a vibration-damping element 16 and a three-hole lower iron base plate 19, be provided with shock-absorbing element 16 in the middle of iron tie plate 19 under three holes on iron tie plate 10, three holes down iron tie plate 19 and shock-absorbing element 16 pass through fastening structure 12 fixed connection, as shown in fig. 5, rail joint structure includes splice splint 14 and connecting bolt 15, splice splint 14 includes flange splice splint 1401 and flat splice splint 1402, flange splice splint 1401 sets up in the urban rail line rail outside, flat splice splint 1402 sets up in urban rail line rail inboard, flange splice splint and flat splice splint 1402 are connected through connecting bolt 15.

In this embodiment, the connection of the spacer 5 is equivalent to the fixed end of the cantilever beam, and at this time, the two switch rails respectively form an elastically bendable system.

In the embodiment, the vibration reduction type turnout is mainly applied to the range of a main line, so that the adopted steel rails are the same as the main line, and the heavy steel rails of 60kg/m are adopted. Because the switch adopts the elastic bendable switch point and the length of the switch point is longer, two pull rods are needed to ensure that the switch point reaches the designed stroke value under the action of the pulling force of the switch machine. When the switch is in a working state, when a train runs on a straight strand, the force transmission system moves corresponding to the movement of the curved switch rail and the straight stock rail under the action of the pulling force of the switch, and at the moment, the curved switch rail and the straight stock rail are elastically bendable; when the train runs on the side strand, the force transmission system moves corresponding to the movement of the straight switch rail and the curved stock rail under the action of the pulling force of the point switch, and at the moment, the elastic bendable system of the straight switch rail is put into operation. The elastic bendable system plays a role of elastic hinge, reduces the joints of the steel rail and ensures the stability of the train passing through the switch rail. Because the working edge of the straight switch rail 4 is a straight line, when the train runs a straight strand, the track gauge change in the range of the switch is linear and uniform, and the track gauge change rate reaches a minimum value, the smoothness of the track is improved.

In this embodiment, the vibration damping type turnout switch is provided with the vibration damping joint clamping plate 14, so that when the wheel pair passes through the joint, the joint rail gap is not put into operation, but the upper top surface of the vibration damping joint clamping plate is directly put into operation, the wheel pair is ensured to perfectly pass through the joint, and when the wheel pair crosses the joint range, the wheel pair continues to advance along the working edge of the steel rail. This further reduces the vibration of the rail.

In this embodiment, a damping type city track switch ware, damping type slide plate mainly uses in the tongue elasticity partially that can bend, and the slide plate provides convenience for the switch of tongue, two hole damping type bearing structure mainly are used for supporting the less operating mode of single walking rail or two walking rails bearing distance, three hole damping type bearing structure mainly are used for supporting the operating mode of two walking rails simultaneously, three hole damping type bearing structure are applied to when stock rail working edge and tongue working edge interval are 300-460 mm.

In the embodiment, the damping type city rail turnout switch is characterized in that the self locking modes of the damping type supporting structure all adopt locking structures, after the damping type supporting structure is assembled, the fastening structure 12 is not completely locked, the locking structure 13 needs to be arranged on the fastening structure 12, and then the locking structure is fixed on a turnout sleeper through the anchoring bolt 17, so that the later-stage work maintenance is facilitated.

In the embodiment, the damping type urban rail turnout switch is characterized in that the straight stock rail 1 and the curved stock rail 2 are standard 60kg/m steel rails; the curved switch rail 3 and the straight switch rail 4 are made of 60kg/m AT rails; the spacer iron 5 is made of KTH330; the pull rod 6 and the connecting rod 7 are made of Q235; the material of the vibration reduction type supporting structure slide plate 8, the two-hole upper iron base plate 9, the three-hole upper iron base plate 10 and the two-hole lower iron base plate 11 grade three-hole lower iron base plate 19 is Q235; the fastening structure 12 is made of glass fiber reinforced polyamide 66; the locking structure 13 is made of QT450; the damping joint clamping plate 14 is made of No. 55 steel; the connecting bolt 15 is made of 20MnTiB; the damping element 16 is made of natural rubber; the anchoring bolt 17 is made of No. 45 steel; the material of the elastic strip 18 is 60Si2Mn.

In this embodiment, a damping type city rail turnout switch can be used with a prestressed concrete turnout sleeper in a matching manner, and is mainly used for an integral track bed.

While one embodiment of the present invention has been described in detail, the present invention is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a damping type city rail switch, its characterized in that includes stock rail, switch blade, rail joint structure and goat damping bearing structure, the stock rail includes straight stock rail (1) and curved stock rail (2), the switch blade includes curved switch blade (3) and straight switch blade (4), curved stock rail (2) are used for the side strand to pass with curved switch blade (3), straight stock rail (1) are used for the straight strand to pass with straight switch blade (4), be connected through spacer (5) between straight stock rail (1) and curved switch blade (3), curved stock rail (2) are connected through spacer (5) with straight switch blade (4), the joint structure sets up in adjacent rail junction, goat damping bearing structure sets up in city rail line running rail below.

2. A vibration damping urban rail switch according to claim 1, characterized in that the front ends of said curvilinear switch rail (3) and said rectilinear switch rail (4) are connected to a connecting rod (7) by means of a tie rod (6), respectively.

3. A vibration damped urban rail switch according to claim 2, wherein said straight switch rail (4) has a straight working edge.

4. A vibration damping urban rail turnout switch according to claim 1, wherein the rail joint structure comprises a joint clamp (14) and a connecting bolt (15), the joint clamp (14) comprises a flange joint clamp (1401) and a flat joint clamp (1402), the flange joint clamp (1401) is arranged outside the urban rail, the flat joint clamp (1402) is arranged inside the urban rail, and the flange joint clamp (1401) and the flat joint clamp (1402) are connected by the connecting bolt (15).

5. A vibration-damped city rail turnout of claim 1 wherein said switch vibration-damped support structure comprises a vibration-damped slide plate disposed at said point rail end, a two-hole vibration-damped support structure disposed at a middle portion of a city rail track, and a three-hole vibration-damped support structure disposed at an end of a city rail track switch.

6. A vibration damping city rail turnout switch according to claim 5, wherein the vibration damping slide plate comprises a slide plate (8), two-hole lower iron base plates (11), a fastening structure (12), a locking structure (13), a damping element (16), an anchor bolt (17) and a spring strip (18), the damping element (16) is arranged between the slide plate (8) and the two-hole lower iron base plates (11), the slide plate (8), the two-hole lower iron base plates (11) and the damping element (16) are fixed through the fastening structure (12), the locking structure (13) is arranged at the top end of the fastening structure (12), the fastening structure (12) is fixed above a city rail turnout sleeper through the anchor bolt (17), and the vibration damping slide plate is fixedly arranged below a city rail switch through the spring strip (18).

7. A vibration damping urban railway switch according to claim 6, characterized in that said locking structure (13) is a ribbed cover plate, and said fastening structure (12) and the groove of the two-hole lower iron tie plate (11) are locked by the plate rib of the locking structure (13).

8. A vibration damping city rail turnout switch according to claim 5, wherein the two-hole vibration damping support structure comprises a two-hole upper iron pad (9), a two-hole lower iron pad (11), a fastening structure (12) and a damping element (16), the damping element (16) is arranged between the two-hole upper iron pad (9) and the two-hole lower iron pad (11), and the two-hole upper iron pad (9), the two-hole lower iron pad (11) and the damping element (16) are fixedly connected through the fastening structure (12).

9. A vibration damping urban railway turnout switch according to claim 5, wherein the three-hole vibration damping support structure comprises three-hole upper iron base plate (10), a fastening structure (12), a vibration damping element (16) and three-hole lower iron base plate (19), the vibration damping element (16) is arranged between the three-hole upper iron base plate (10) and the three-hole lower iron base plate (19), and the three-hole upper iron base plate (10), the three-hole lower iron base plate (19) and the vibration damping element (16) are fixedly connected through the fastening structure (12).