CN221589091U - Rail glue joint insulating joint - Google Patents

Abstract

The utility model relates to a steel rail cementing insulating joint. The rail cementing insulated joint comprises: the glued joint insulation component, glued joint insulation component is used for connecting two rails, and wherein the glued joint terminal surface of two rails is corresponding, and the glued joint terminal surface of two rails is vertical and form the acute angle with length direction, and glued joint insulation component includes: the insulating end plate is arranged between the cementing end surfaces of the two steel rails, the joint clamping plates are arranged at the rail waists at the two sides of the two steel rails and are connected with the steel rails through fasteners, a reserved space for installing the fasteners is arranged below the joint clamping plates, and the insulating groove plates are arranged between the joint clamping plates and the two steel rails and used for insulation between the connection of the steel rails and the joint clamping plates. The utility model improves the stress state of the joint connection part, increases the direct bearing area of the joint clamping plate, reduces the deformation of the joint clamping plate, improves the deformation resistance of the joint, and improves the deformation resistance and fatigue performance of the joint.

Description

Rail glue joint insulating joint

Technical Field

The utility model relates to the field of rail transit, in particular to a steel rail cementing insulating joint.

Background

The steel rail adhesive joint is an important component of a railway turnout, is used for isolating a track circuit, and is generally formed by connecting two steel rails made of the same rail material by adopting high-strength bolt fasteners, insulating materials and joint clamping plates, the non-integrity of the joint part enables the joint part to be a weak part of a track line, and the deformation performance of the joint part seriously influences the stability of the running of a train, so that the deformation resistance and the fatigue performance of the steel rail adhesive joint become key factors influencing the service life of the steel rail adhesive joint. When a train moves to a joint connection position, all vertical loads and transverse loads are independently carried by the insulating end plates to the joint clamping plates, and the direct bearing area of the joint clamping plates is limited to the joint vertical direction in contact with the insulating end plates, so that the deformation of the joint clamping plates is large, the deformation resistance and fatigue resistance of the joint are poor, and the service life of the joint is seriously influenced. In addition, in order to prevent the joint clamping plate from interfering with the circuit fastener installation small piece, a certain installation space can be reserved for the whole length of the contact part of the lower part of the joint clamping plate and the rail limb, the stress contact area of the joint clamping plate is smaller, the supporting effect of the joint is limited, and the deformation resistance and the fatigue resistance of the joint are not facilitated.

Accordingly, there is a need to improve one or more problems in the related art as described above.

It is noted that this section is intended to provide a background or context for the technical solutions of the utility model set forth in the claims. The description herein is not admitted to be prior art by inclusion in this section.

Disclosure of utility model

It is an object of embodiments of the present disclosure to provide a rail glue insulated joint that overcomes, at least in part, one or more of the problems due to the limitations and disadvantages of the related art.

The embodiment of the disclosure provides a steel rail cementing insulating joint, comprising:

The two steel rails are connected through the adhesive joint insulating assembly, the adhesive joint end faces of the two steel rails are corresponding, the adhesive joint end faces of the two steel rails are vertical and form an acute angle with the length direction, and adhesive joint holes for connecting the adhesive joint insulating assembly are formed in two sides of the two steel rails;

the bonded insulation assembly includes:

The insulating end plate is arranged between the cementing end surfaces of the two steel rails;

The joint clamping plates are arranged at rail waists at two sides of the two steel rails and are connected with the steel rails through fasteners, and a reserved space for installing the fasteners is arranged below the joint clamping plates;

The insulation groove plate is arranged between the joint clamping plate and the two steel rails and used for insulation between the connection of the steel rails and the joint clamping plate.

In one embodiment of the disclosure, the cementing end surfaces of the two steel rails are vertical and form an acute angle with the length direction, and the acute angle is 25-65 degrees.

In one embodiment of the disclosure, the glue joint end faces of the two steel rails have identical inclination.

In one embodiment of the disclosure, the gap between the glued end faces of the two rails is 5-8mm.

In an embodiment of the disclosure, a fish tail space is formed on the side surfaces of the two steel rails, and the glue joint surface of the joint clamping plate is consistent with the contour of the fish tail space on the side surfaces of the two steel rails.

In an embodiment of the disclosure, the glue joint hole and the headspace position are staggered.

In an embodiment of the disclosure, the insulating end plate is in slope conformity with the rail bonding end face, and the shape of the insulating end plate is in conformity with the shape of the rail bonding end face.

In one embodiment of the disclosure, the length of the joint clamping plate is 550 mm-950 mm, and both ends of the length of the insulation groove plate are 0-50 mm longer than the clamping plate.

In one embodiment of the disclosure, the length of the joint clamping plate is 850 mm-950 mm, and both ends of the insulation groove plate are 10-50 mm longer than the clamping plate.

In one embodiment of the present disclosure, the fastener comprises a bolt, a nut, a washer, and an insulating sleeve.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

According to the embodiment of the disclosure, the glue joint end surfaces of the two steel rails are vertical and form an acute angle with the length direction, and the vertical load and the transverse load at the joint are uniformly borne by the joint clamping plates and the steel rails, so that the stress state of the joint is improved, the direct bearing area of the joint clamping plates is increased, the deformation of the joint clamping plates is reduced, and the deformation resistance of the joint is improved. The lower edge of the joint clamping plate is provided with a reserved space for installing the fastener, the reserved space is used as a fastener installation position, the rest part of the reserved space keeps the largest contact area with the rail limbs and the rail heads of the steel rail, the supporting effect of the joint clamping plate is improved, and the deformation resistance and the fatigue resistance of the joint are improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a schematic perspective view showing a rail bonded insulated joint according to an exemplary embodiment of the present disclosure;

fig. 2 illustrates a schematic structural view of a splice clamping plate in an exemplary embodiment of the present disclosure.

FIG. 3 illustrates a schematic view of a fastener structure in an exemplary embodiment of the present disclosure.

Reference numerals: 100. a steel rail; 101. cementing the end face; 102. a cementing hole; 200. a joint clamping plate; 201. reserving a space; 300. an insulating slot plate; 400. an insulating end plate; 500. a bolt; 501. a gasket; 502. a nut; 503. an insulating sleeve.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of embodiments of the utility model and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.

In this exemplary embodiment, there is provided a rail adhesive-bonded insulated joint, which may include, with reference to fig. 1: rail 100, joint clip 200, insulating channel plate 300, and insulating end plate 400.

Specifically, the adhesive joint insulation assembly is used for connecting two steel rails 100, wherein adhesive joint end faces 101 of the two steel rails 100 correspond to each other, the adhesive joint end faces 101 of the two steel rails 100 are vertical and form an acute angle with the length direction, and adhesive joint holes 102 for connecting the adhesive joint insulation assemblies are formed in two sides of the two steel rails 100;

the bonded insulation assembly includes:

The insulating end plate 400 is arranged between the cementing end surfaces 101 of the two steel rails 100;

The joint clamping plates 200 are arranged at rail waists at two sides of the two steel rails 100 and are connected with the steel rails 100 through fasteners, and a reserved space 201 for installing the fasteners is arranged below the joint clamping plates 200;

The insulation groove plate 300 is disposed between the joint clamping plate 200 and the two rails 100, and is used for insulation between the connection of the rails 100 and the joint clamping plate 200.

Through the rail cementing insulating joint, on the one hand, through the cementing end face 101 of two rails 100 vertical and form an acute angle with the length direction, the vertical load and the transverse load of the joint junction are uniformly borne by the joint clamping plate 200 and the rails 100, the stress state of the joint junction is improved, the direct bearing area of the joint clamping plate 200 is increased, the deformation of the joint clamping plate 200 is reduced, the deformation resistance of the joint is improved, on the other hand, the reserved space 201 for installing the fastener is arranged below the joint clamping plate 200, the reserved space 201 is used as the fastener installation position, the maximum contact area between the rest part and the rail limbs and the rail head is kept, the supporting function of the joint clamping plate 200 is improved, and the deformation resistance and the fatigue performance of the joint are improved.

It should be understood that the manufactured steel rail 100 and the joint clamping plate 200 are subjected to sand blasting treatment, the sand blasted and glued joint surfaces are clean and dry, rust spots, oil stains, water vapor and the like are avoided, then the steel rail 100, the joint clamping plate 200, insulating materials and high-strength bolt 500 fasteners are assembled into the joint, if the insulating materials are cured at high temperature, the joint is heated to a certain temperature according to the curing performance of the insulating materials, glue extrusion is performed at a certain temperature, heat preservation and curing are performed, if the normal-temperature curing materials are adopted, the joint is directly fastened after the joint is assembled, and the electrical insulation performance after the joint is manufactured is required to meet the related standard requirements.

It should be further understood that machining equipment such as a numerically controlled milling machine is adopted to machine the glued end faces 101 of the steel rail 100 according to the design angle of the glued end faces 101 of the steel rail 100, the inclination of the glued end faces 101 of the steel rail 100 at two sides is kept consistent, the two side end faces can be completely attached when the joint is assembled and manufactured, and glued bolt holes are drilled in the glued end heads. The rail web of the two steel rails 100 is a fishtail space contour, the cementing surface of the joint clamp plate 200 is consistent with the rail web contour of the two steel rails 100, the cementing surface of the joint clamp plate 200 is well matched with the rail web contour of the steel rails 100, the rest parts except the reserved space 201 at the installation position of the line fastener keep the largest contact area with the rail limbs and the rail heads for design and manufacture, and the bolt hole positions are consistent with the cementing holes 102 of the steel rails 100. The insulating end plate 400 is designed and manufactured according to the inclination of the cementing end face 101 of the steel rail 100, is well matched with the cementing end face 101 of the steel rail 100, and has insulating performance meeting the requirements of relevant standards. The insulating groove plate 300 needs to realize the full package of the cementing surface of the butt joint clamping plate 200, ensure that the electrical insulation performance between the steel rail 100 and the clamping plate meets the requirement, the insulating sleeve 503 is matched with the high-strength bolt 500 fastener for use, the size is matched with the bolt hole and the high-strength bolt 500, and the electrical insulation performance between the steel rail 100 and the bolt 500 fastener meets the requirement.

The respective parts of the above-described rail 100 glue-joint insulation joint in the present exemplary embodiment will be described in more detail with reference to fig. 1.

In one embodiment, the cementing end face 101 of the two rails 100 is vertical and forms an acute angle with the length direction, the acute angle being 25 ° -65 °. It should be understood that the cementing end surfaces 101 of the two rails 100 are vertical and form an acute angle with the length direction, where the cementing end surfaces 101 are inclined planes, and the cementing end surfaces 101 are perpendicular to the horizontal plane, but form an inclined plane with the upper surface of the rail 100, and the included angle is an obtuse angle or an acute angle, which is illustrated here by an acute angle, and may be an obtuse angle of 115 ° -155 °.

In one embodiment, the glued end faces 101 of the two rails 100 are of uniform slope. It will be appreciated that the glued end faces 101 of the two rails 100 are mitered faces, the gap between the mitered faces being uniform when butted. The inclined joint surface of each steel rail 100 forms two included angles with the upper surface of the steel rail 100, one is an acute angle and one is an obtuse angle, the two steel rails 100 are oppositely arranged, the acute angle on one steel rail 100 corresponds to the obtuse angle on the other steel rail 100, and therefore the inclination of the two steel rails 100 is consistent, and the two steel rails 100 are in a straight line after being glued.

In one embodiment, the gap between the glued end faces 101 of the two rails 100 is 5-8mm. It should be understood that the glued end faces 101 of the two rails 100 are all mitered faces, and the train wheels are always in point contact with the joints of the rails 100 on the rolling surface, so that no vibration is generated.

In one embodiment, the lateral sides of the two rails 100 are provided with a fish tail space, and the cementing surface of the joint clamping plate 200 is consistent with the contour of the fish tail space of the lateral sides of the two rails 100. It should be understood that the side surfaces of the two rails 100 form a fish tail space between the side surfaces of the two rails 100 from the rail head to the rail web and then to the rail bottom, the joint clamping plate 200 has the functions of connection and support, and the cementing surface of the joint clamping plate 200 is consistent with the fish tail space contour of the side surfaces of the two rails 100, which is more beneficial to the support of the joint clamping plate 200 and makes the cementing rail 100 smoother.

In one embodiment, referring to fig. 2, the glue holes 102 are offset from the headspace 201. It should be understood that the positions of the glue holes 102 and the reserved space 201 are staggered, so as to avoid interference.

The fastener is installed joint splint 200 and insulating frid 300 in two rail 100 both sides rail web department through cementing hole 102, the below of joint splint 200 is equipped with the space 201 of reservation of installation fastener, and in addition joint splint 200 keeps the biggest area of contact with rail limb, railhead except in circuit fastener installation position space 201 reservation, effectively improves the supporting role of joint splint 200, improves the deformation resistance and the fatigue property of joint. Avoiding the mutual interference of the two.

In one embodiment, the insulating end plate 400 is inclined to conform to the glued end face 101 of the rail 100, and the insulating end plate 400 is shaped to conform to the glued end face 101. It should be appreciated that the insulating end plate 400 is sized to match the slope of the glued end face 101 to ensure a complete fit with the insulating end plate 400 during assembly.

In one embodiment, the connector clamping plate 200 has a length of 550mm to 950mm, and the insulating slot plate 300 has both ends of the length 0 to 50mm longer than the clamping plate. Preferably, the connector clamping plate 200 has a length of 850mm to 950mm, and both ends of the length of the insulation slot plate 300 are longer than the clamping plate by 10 to 50mm. It should be appreciated that such an arrangement may provide adequate insulation of the insulation channel plate 300.

In one embodiment, referring to FIG. 3, the fastener includes a bolt 500, a nut 502, a washer 501, and an insulating sleeve 503. It should be understood that the bolt 500 is a high-strength anti-loosening bolt 500, the anti-loosening bolt 500 is provided with an end cap, a smooth section and a threaded section, and the insulating sleeve 503 is sleeved on the outer circle of the bolt 500.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like in the above description are directional or positional relationships as indicated based on the drawings, merely to facilitate description of embodiments of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting embodiments of the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In embodiments of the utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.

Claims (10)

1. A rail bonded insulated joint comprising:

The two steel rails are connected through the adhesive joint insulating assembly, the adhesive joint end faces of the two steel rails are corresponding, the adhesive joint end faces of the two steel rails are vertical and form an acute angle with the length direction, and adhesive joint holes for connecting the adhesive joint insulating assembly are formed in two sides of the two steel rails;

the bonded insulation assembly includes:

The insulating end plate is arranged between the cementing end surfaces of the two steel rails;

The joint clamping plates are arranged at rail waists at two sides of the two steel rails and are connected with the steel rails through fasteners, and a reserved space for installing the fasteners is arranged below the joint clamping plates;

The insulation groove plate is arranged between the joint clamping plate and the two steel rails and used for insulation between the connection of the steel rails and the joint clamping plate.

2. A rail bonded insulated joint as claimed in claim 1, wherein the bonded end faces of the two rails are vertical and form an acute angle with the length direction, the acute angle being 25 ° -65 °.

3. A rail bonded insulated joint as claimed in claim 2, wherein the bonded end faces of the two rails are of uniform slope.

4. A rail bonded insulated joint as claimed in claim 2, wherein the gap between the bonded end faces of the two rails is 5-8mm.

5. A rail glue joint insulating joint according to claim 1, characterized in that the side surfaces of the two rails are provided with a fish tail space, the glue joint surface of the joint clamping plate being in accordance with the contour of the fish tail space of the side surfaces of the two rails.

6. A rail glue insulated joint according to claim 1, characterized in that the glue holes are offset from the headspace locations.

7. A rail bonded insulated joint as claimed in claim 1, wherein the insulated end plate is inclined to the rail bonded end face in a manner consistent with the shape of the rail bonded end face.

8. A rail cementing insulated joint according to claim 1 wherein the joint clamp plate has a length of 550mm to 1000mm and the insulated channel plate has length ends that are 0 to 50mm longer than the clamp plate.

9. A rail cementing insulated joint according to claim 1 wherein the joint clamp plate has a length of 850mm to 1000mm and the insulated channel plates are each 10 to 50mm longer than the clamp plate.

10. A rail glue insulated joint according to claim 1, wherein the fasteners comprise bolts, nuts, washers and insulating sleeves.