CN205557202U - A I shape attach fitting for F shaped steel rail - Google Patents

Abstract

The utility model discloses a I shape attach fitting for F shaped steel rail, including being used for setting up lower connecting plate and the spacing boss in the pterygoid lamina lower surface, wherein spacing boss protrusion sets up on a side of connecting plate down, the surperficial plane that is of its protrusion end, F shaped steel rail pterygoid lamina corresponds the spread groove that is provided with with spacing boss one end matching respectively, spacing boss under the spread groove between the relative both wings board and the I shape space of the common formation in gap between the two are used for on the connecting plate inserts, passing the connecting hole through the connecting piece, will to descend connecting plate and pterygoid lamina to be connected fixed, can make this spacing boss pass space and its protrusion end surface and pterygoid lamina upper surface parallel and level, and make the side completely with the pterygoid lamina on the spread groove inner wall contact, and then the connection of realization to F shaped steel rail. The utility model discloses an attach fitting can guarantee that the wheel does not break away from the pterygoid lamina all the time, can avoid the impact of rail gap to walking and taking turns completely, also need not to carry out weakening of extra highly difficult machining and intensity or performance to F shaped steel pterygoid lamina structure simultaneously.

Description

I shape jointing for F shaped steel rail

Technical field

This utility model belongs to medium-and low-speed maglev track structure technical field, is specifically related to a kind of for F shaped steel rail Jointing, it is adaptable to the connection between the medium-and low-speed maglev track section of track.

Background technology

Medium-and low-speed maglev track traffic uses the attractive suspension of normal conducting magnetic iron and guiding technique, passes through vehicle suspension The electromagnetic attraction between U-shaped electric magnet and F shaped steel rail on frame, it is achieved the suspension of vehicle and guiding.At present Medium-and low-speed maglev track structure mainly uses steel tie pattern, and track mainly includes tablet, F shaped steel The part groups such as rail (also referred to as F rail), telescopic joint, connector and securing member, steel tie, fastener system, track Become, mat formation for unit entirety with the section of track.F shaped steel rail, steel tie and tablet are in factory or Assembling base group Dressing up the section of track, the section of track is connected by F rail jointing.

For adapting to the dilatation that the section of track and infrastructure cause under variations in temperature, between section of track F shaped steel rail all Being provided with expansion joint, jointing is arranged on the expansion joint position between adjacent F shaped steel rail, the joint of F shaped steel rail Structure needs to adapt to the sides such as the characteristic of expanding with heat and contract with cold of magnetic levitation track, the smooth-going of F rail, roadability and operation maintenance The demand in face, its bonding strength, stability and reliability are most important to train safe, steady and quick operation.

F shaped steel rail joint is when connecting the connected section of track, for ensureing track centering vertical, horizontal, and on longitudinal direction (edge Orbital direction) upper enough temperature difference telescopic displacement regulated quantitys, jointing is all provided with under F shaped steel rail wing plate Lower attachment structure.At present, under the most existing wing plate, attachment structure generally comprises wing plate lower connecting plate and connection Bolt, this attachment structure is arranged on the limit of wing plate bottom surface by being embedded by the convex block being arranged on wing plate lower connecting plate Position groove limits the transversion malposition between the section of track, carries by the wing plate of F shaped steel rail is arranged to " ladder " type High train under rescue mode by the stationarity at expansion joint.

Patent documentation CN104499385A such as discloses a kind of medium-and low-speed maglev system F shaped steel rail and connects knot Structure, as shown in Figure 1-2, it includes wing plate lower connecting plate 1, clamping plate and outer lower limb side connecting plate 3, the bottom surface of wing plate Being provided with the limited impression along circuit longitudinal extension, wing plate lower connecting plate is provided with the convex matched with limited impression Block, two wing plates can be that " ladder " type connects simultaneously.By the way, so that energy between the section of track Enough dilatations preferably adapting to expansion joint, are arranged by the notch cuttype of wing plate so that it can strengthening is horizontal simultaneously To spacing energy and promote train wheel stationarity by expansion joint under rescue mode.But, above-mentioned connection The cross spacing of the section of track is promoted the most limited by structure, and wherein wing plate is arranged to " ladder " type and makes car Wheel still has part can be positioned at position, gap, causes wheel stability still to have a deficiency, and above-mentioned ladder " type knot Structure needs to carry out track end face the machining of complicated shape, and must assure that the contact surface size essence of two ends guide rail Really coordinating, its difficulty of processing is big, cost is high, installation effectiveness is low, is not suitable for excessive joint gap and can significantly improve F type The difficulty of processing of rail, also can cause the huge waste of material.

Utility model content

For disadvantages described above or the Improvement requirement of prior art, this utility model provides a kind of for F shaped steel rail I-shaped jointing, its assembling mode by butt joint structure with F shaped steel rail wing plate improves, And the wing plate connecting portion of F shaped steel rail is optimized accordingly, thus realize the section of track connected horizontal and vertical Nogata to accurately coupling and spacing, and be completely adapted to the dilatation of the section of track in the vertical, and can protect Card wheel, all the time without departing from wing plate, can avoid the rail gap impact to road wheel completely, simultaneously without to F type Steel wing plate structure carries out weakening of extra highly difficult machining and intensity or performance.

For achieving the above object, according to an aspect of the present utility model, it is provided that a kind of work for F shaped steel rail Font jointing, for being attached the wing plate of the F shaped steel rail of two ends, adjacent section of track opposite end, it is achieved The connection of the two adjacent sections of track at expansion joint it is provided with, it is characterised in that this jointing includes between to:

For being arranged at the lower connecting plate of wing plate lower surface, it is provided with multiple through hole as being connected with wing plate Connecting hole；And positive stop lug boss, its protrude be arranged on described lower connecting plate for contacting with wing plate to be connected A side surface on, it is strip, and length direction is along railway line direction and its both ends equal track both lateral sides Protrude so that positive stop lug boss is overall in I shape；

The end that two described F shaped steel rail wing plates to be connected are relative is correspondingly arranged on and described positive stop lug boss respectively The link slot of one end coupling, wherein said link slot transversely extends to both sides along track in the end within wing plate, Above-mentioned link slot between two wing plates positioned opposite and the gap between two link slots are collectively forming I shape space is inserted for described positive stop lug boss, can be by described lower connection through described connecting hole by connector Plate is connected fixing with wing plate, thus this positive stop lug boss can be made through described I shape space and to make its protruding end Surface is concordant with wing plate upper surface, makes its side link slot contact internal walls completely and on wing plate simultaneously, and then is Can realize the most spacing of the adjacent section of track and smooth transition are connected.

As of the present utility model further preferably, described positive stop lug boss in the length along railway line direction less than institute State the length in I shape space so that this positive stop lug boss is suitable for section of track telescopic shape change in the direction.

As of the present utility model further preferably, described positive stop lug boss is in track width transversely and described work The width coupling in font space so that F shaped steel rail can be carried out spacing by the direction.

As of the present utility model further preferably, the groove that described link slot both ends are formed to horizontal expansion is not Through wing plate upper and lower surface, accordingly, the height at the position that matched positive stop lug boss both ends are laterally protruding Height less than positive stop lug boss mid portion.

As of the present utility model further preferably, described positive stop lug boss and I shape space are in the longitudinal direction Centrage overlaps, and preferably overlaps with train support wheel centrage.

As of the present utility model further preferably, described positive stop lug boss at track width transversely less than train Support the width of wheel.

Further preferably the protruding end end face of described spacing preiection is plane as of the present utility model, and it is even After receiving position concordant with wing plate plane so that the described wheel that supports can pass through this limit when by gap between two sections of track The position support of boss and smoothly pass thus reduce supporting the impact taken turns.

As of the present utility model further preferably, described connecting hole along railway line directional spreding at lower connecting plate Two ends, the most often end is two, the most corresponding to wing plate correspondence position to be connected has hole, for leading to respectively Cross connector and realize both connections.

As of the present utility model further preferably, described connecting hole is preferably slotted hole, and length direction is along track Line direction.

As of the present utility model further preferably, the described link slot on wing plate is for extend inwardly from wing plate end Certain length also runs through the slotted eye of wing plate upper and lower surface, and slotted eye in end inwardly along track both sides transversely Extend so that the link slot on two wing plates and the gap between two wing plates are formed for accommodating described positive stop lug boss I shape hole.

In general, by the contemplated above technical scheme of this utility model compared with prior art, have with Lower beneficial effect:

(1) jointing of the present utility model is by being completely embedded into the I shape positive stop lug boss of wing plate lower connecting plate In the I shape slotted eye of F shaped steel end so that it is greatly improved at track stress surface transversely, thus greatly carries Its cross spacing ability high, can effectively prevent the transversion malposition of adjacent two F shaped steel；

(2) jointing of the present utility model passes through the positive stop lug boss of wing plate lower connecting plate by two ends, expansion joint F type The wing plate of steel has been carried out " bridge joint ", and wherein raised head face can be the most concordant with wing plate plane, it is ensured that support wheel By being in contact condition during expansion joint all the time, improve train in the stationarity of rescue mode down train and support The service life of wheel；

(3) jointing of the present utility model is by offering link slot respectively at two wing plate end faces to be connected, and With the space that section of track gap between the two forms I shape so that positive stop lug boss can be embedded and in length Hole is there is so that it perfect can adapt to the dilatation in gap between the section of track on direction；

(4) jointing of the present utility model is only to need the corresponding link slot of simple processing and connection on wing plate Hole, it is not necessary to carry out machining and the Accuracy Matching of complexity, it is to avoid " ladder " type of existing jointing wing plate Arrange, not only connect more stable reliably, and reduce processing and install, also reduce come the section of track entirety Cost, reduces waste simultaneously, also allows for maintenance.

Accompanying drawing explanation

Fig. 1 is the connection diagram that a kind of F shaped steel rail of the prior art connects tieing；

Fig. 2 is the connection diagram under another visual angle of the jointing in Fig. 1；

Fig. 3 is the STRUCTURE DECOMPOSITION schematic diagram connecting tieing according to one embodiment of this utility model；

Fig. 4 is the connection tieing structural representation under another visual angle in Fig. 3；

Fig. 5 is the connection diagram when connecting the wing plate of two F shaped steel rails of the connection tieing in Fig. 3；

Fig. 6 is the generalized section in Fig. 5 along A-A section part；

Fig. 7 is the generalized section in Fig. 5 along B-B section part；

Fig. 8 is the generalized section in Fig. 5 along C-C section part.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and Embodiment, is further elaborated to this utility model.Should be appreciated that described herein being embodied as Example, only in order to explain this utility model, is not used to limit this utility model.Additionally, basis disclosed below Just can phase as long as technical characteristic involved in each embodiment of utility model does not constitutes conflict each other Combination mutually.

According to the jointing of one embodiment of this utility model, it is for the adjacent section of track of medium-and low-speed maglev system Connect, the connection of the F shaped steel rail on especially two sections of track.For adapting to the section of track and infrastructure under variations in temperature The dilatation caused, is provided with expansion joint between section of track F shaped steel rail, and jointing is i.e. arranged on adjacent F type Expansion joint position between rail, for connecting two F shaped steel rails, as it is shown on figure 3, the connection of two F shaped steel rails 3 Connect respective wing plate by this jointing to realize.

As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, at position to be connected on the wing plate of two F shaped steel rails 3 Offer link slot 32 respectively, link slot 32 be along railway line direction from wing plate end to the bar shaped extended in wing plate Groove, particularly this bar-shaped trough end in portion in wing plate extends on track horizontal direction, and i.e. this bar-shaped trough is at end The part the most through wing plate upper and lower surface that the width in portion extends more than the width of non-end, preferably link slot end, And other positions of link slot through wing plate upper and lower surface.In one embodiment, link slot 32 is positioned at inside wing plate One end transversely extend the rectangle that the slotted eye of protrusion is one fixed width to track so that this bar shaped link slot becomes T Shape slotted eye.But the part that link slot 32 transversely extends in this utility model protrusion to track is not limited to rectangle, Can also be other shapes, such as circle, sector, kidney-shaped etc., but this link slot on the whole should T-shaped or Class T-shaped.

It addition, the connecting portion on wing plate is in the periphery being positioned at link slot 32, it is provided with the connection for connecting Hole, for being connected fixing by jointing with wing plate 31.As it is shown on figure 3, in one embodiment, connect Hole is circular hole, preferably step circular hole, and the connecting hole on each wing plate 31 is two, laterally distinguishes cloth along track It is placed in the both sides of strip link slot 32.But shape and quantity to connecting hole do not limit in this utility model, Can be the most specifically chosen, but preferably along track cross direction profiles in strip link slot both sides.

As in Figure 3-5, jointing includes lower connecting plate 1, and it is preferably plate body structure, lower connecting plate 1 Being provided with boss 11 on one side surface (in the drawings for upper surface), it is fixing company with the upper surface of lower connecting plate 1 Connecing, preferably one connects.Boss 11 is strip, and length direction is along railway line direction, and its both ends are equal Protrude along track horizontal direction to both sides so that positive stop lug boss is overall in I-shaped structure.The boss 11 of I shape The gap between link slot 32 and two F shaped steel rails 3 in shape and two wing plates 3 be collectively forming along track The I shape space in line direction matches, it is preferable that its height of the part that two ends are protruded is less than other positions of boss, It can be coordinated with link slot corresponding position.This boss 11 is for inserting the link slot 32 on two wing plates 3 And in the I shape space along railway line direction that is collectively forming, the gap that two between F shaped steel rail 3.

As the critical component in this connector, boss 11 for realize to the section of track or F shaped steel rail 3 laterally and Spacing and the adaptation of vertical direction, along the dilatation in railway line direction, ensures to rush vehicle support wheel simultaneously Hitting the least, the size and dimension of boss 11 has certain requirement.Specifically, boss 11 is along track The length in line direction is necessarily less than the link slot 32 on two relative wing plates 31 and gap between the two along rail The length in the I shape space that diatom direction is collectively forming, preferably boss 11 two ends projection is along track The width in line direction is less than the width in described I shape space so that boss 11 can be at this sky on railway line direction Relative movement in gap, adapts to the needs of section of track dilatation.

Meanwhile, the boss 11 link slot 32 on track width transversely with wing plate 31 width in the direction Degree coupling so that F shaped steel rail 3 can be carried out spacing by boss 11 in the horizontal, and its horizontal stress surface is greatly improved, Make its restraining ability and spacing reliability be greatly improved, can effectively prevent F shaped steel rail 3 dislocation in the horizontal. Preferably, the lateral projection position, two ends of boss 11 width in the horizontal and the width of extension, link slot two ends Degree coupling, the width of boss 11 middle part mates with the width of link slot middle part.

In one embodiment, boss 11 is at the centrage of the centrage along railway line direction Yu I shape space Being maintained on same vertical plane, vehicle support wheel also is located in this plane along the centrage in railway line direction simultaneously. Particularly, the end face of the protruding end of boss 11 should be consistent with wing plate 31 upper surface, such as, be plane, simultaneously After height of projection should ensure that boss 11 inserts in space and passes this space, the end face of protruding end and wing plate 31 table Face is concordant so that vehicle support wheel can smoothly contact boss 11 end face and pass through, reduce as far as possible because of The impact caused for the existence in gap between the section of track or instability.

In one embodiment, boss 11 at track width transversely less than the width of vehicle support wheel.

The lower connecting plate 1 of jointing is positioned on the surface of positive stop lug boss 11 homonymy (for upper surface shown in Fig. 3) Being provided with multiple through hole 12 being positioned at positive stop lug boss 11 periphery, it is as installing connecting hole, its with wing plate 31 on Installing hole 33 corresponding, be used for making connector pass and be connected so that joint is fixed with wing plate 31.An enforcement In example, the upper surface of wing plate lower connecting plate 1 be positioned at surrounding be provided with four install connecting holes 12, respectively pacify Dress connecting hole 12 preferably waist hole.In one embodiment, the connector for jointing Yu wing plate is spiral shell Bolt 2.

The shape of positive stop lug boss 11 both ends of the surface in the longitudinal direction is mated with the I-groove end face of corresponding end, one In individual embodiment, positive stop lug boss 11 both ends of the surface are the rectangle protruded, and the extension of correspondingly connected groove end is also For rectangle so that both can mate, but the shape divided for boss 11 end lobes in this utility model is not It is construed as limiting, can be such as circular, kidney-shaped or other shapes.Positive stop lug boss 11 after connection puts in place its end face with There is certain interval in corresponding groove end face, for adapting to the dilatation at expansion joint between the section of track.

Jointing in this utility model is by the setting of above-mentioned positive stop lug boss 11 and corresponding wing plate 31 Offering of corresponding link slot 32, and combine the combination of corresponding size and assembly relation, so that the F of section of track part Reliable and stable connection can be realized between shaped steel rail 3, carry out on laterally and vertically the most spacing, Dilatation between the adaptation section of track on railway line direction, and its supporting & stablizing to vehicle support wheel, greatly reduce Wheel contacts with gap, is substantially reduced the impact to wheel so that train stationarity under rescue mode obtains Promote to strengthening.While above-mentioned jointing states function in realization, not to the processing to F shaped steel rail 3 Propose particular/special requirement with precision, process and install simple, it is not necessary to complicated machining and class fit, Er Qiejie Structure intensity the most effectively reduces, and can be greatly reduced waste of material.

As it will be easily appreciated by one skilled in the art that and the foregoing is only preferred embodiment of the present utility model, Not in order to limit this utility model, all made within spirit of the present utility model and principle any amendment, Equivalent and improvement etc., within should be included in protection domain of the present utility model.

Claims (10)

1. the I shape jointing for F shaped steel rail, for the wing plate (31) of the F shaped steel rail of the end, opposite end of the two adjacent sections of track is attached, realize between be provided with the connection of the two adjacent sections of track at expansion joint, it is characterised in that this jointing includes:

For being arranged at the lower connecting plate (1) of F shaped steel rail wing plate (31) bottom surface, it is provided with multiple through hole as the connecting hole (12) being connected with described wing plate (31)；

Positive stop lug boss (11), it protrudes the one side being used for contacting being arranged on described lower connecting plate (1) with wing plate (31) bottom surface to be connected, it is strip, length direction protrudes along railway line direction and its both ends equal track both lateral sides so that positive stop lug boss is overall in I shape；

nullThe end that two described F shaped steel rail wing plate (31) to be connected are relative is correspondingly arranged on the link slot (32) mated with described positive stop lug boss one end respectively，Wherein said link slot transversely extends to both sides along track in the end within wing plate，The I shape space that above-mentioned link slot (32) between two wing plates (31) positioned opposite and the gap being positioned between two link slots (32) are collectively forming is inserted for described positive stop lug boss (11)，Lower connecting plate (1) can be connected fixing with two wing plates (31) through described connecting hole (12) by connector，Thus this positive stop lug boss (11) can be made through described I shape space and to make its surface, protruding end concordant with wing plate (31) upper surface，Make its side and link slot (32) contact internal walls on wing plate (31) simultaneously，And then realize the most spacing of the adjacent section of track and smooth transition are connected.

A kind of I shape jointing for F shaped steel rail the most according to claim 1, wherein, described positive stop lug boss (11) is being less than the length in described I shape space along the length in railway line direction so that this positive stop lug boss is suitable for section of track telescopic shape change in the direction.

A kind of I shape jointing for F shaped steel rail the most according to claim 2, wherein, described positive stop lug boss (11) is at the width Corresponding matching of track width transversely with described I shape space so that F shaped steel rail can be carried out spacing by the direction.

4. according to a kind of I shape jointing for F shaped steel rail according to any one of claim 1-3, wherein, the groove the most through wing plate upper and lower surface that described link slot both ends are formed to horizontal expansion, accordingly, the height at the position that matched positive stop lug boss both ends are laterally protruding is less than the height of positive stop lug boss mid portion.

5. according to a kind of I shape jointing for F shaped steel rail according to any one of claim 1-3, wherein, described positive stop lug boss (11) and I shape space centrage in the longitudinal direction overlaps.

6. according to a kind of I shape jointing for F shaped steel rail according to any one of claim 1-3, wherein, described positive stop lug boss (11) supports the width of wheel at track width transversely less than train.

7. according to a kind of I shape jointing for F shaped steel rail according to any one of claim 1-3, wherein, the protruding end end face of described positive stop lug boss (11) is plane, it is concordant with wing plate (31) plane after connection puts in place so that supports wheel and can be smoothly passed by the support of this positive stop lug boss (11) when by flexible gap between two sections of track thus reduces supporting the impact taken turns.

8. according to a kind of I shape jointing for F shaped steel rail according to any one of claim 1-3, wherein, described connecting hole (12) along railway line directional spreding at the two ends of lower connecting plate (1), the most often end is two, wing plate (31) correspondence position to be connected has hole (33) the most accordingly, for being realized both connection respectively by connector.

9. according to a kind of I shape jointing for F shaped steel rail according to any one of claim 1-3, wherein, described link slot (32) on wing plate (31) is inwardly along the elongated slot through hole stretching certain length from wing plate (31) end, wherein slotted eye in end inwardly along track extension, both sides the most through wing plate upper and lower surface transversely, remainder through wing plate upper and lower surface so that the link slot (32) on two wing plates (31) and the gap between two wing plates are formed described for accommodating the I shape hole of described positive stop lug boss (11).

10., for a track for medium-and low-speed maglev system, wherein, it is attached by the I-shaped jointing according to any one of claim 1-9 between each section of track of described track.