Steel rail on-site cementing insulation joint and cementing method thereof
By using composite material grooved plates and adhesives to form a thick insulation layer between the rails, the safety hazards caused by the thin insulation layer in the existing technology are solved, achieving efficient insulation and mechanical support between the rails and reducing the risk of railway operation.
Patent Information
- Application Number
- CN202511608697.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2025-12-19
AI Technical Summary
The insulation layer thickness of existing on-site adhesive bonding insulation joints for rails is insufficient, leading to insulation failure and posing a safety hazard during railway operation.
Composite material grooved plates are bonded to the rails on-site to form an insulation layer with increased thickness. Combined with adhesives and fastening components, this ensures a firm connection between the insulation clamps and the rails, improving insulation performance and strength.
It significantly improves the insulation performance and mechanical support strength between rails, reduces safety hazards during railway operation, and extends service life.
Smart Images
Figure CN121161663A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of railway traffic, more particularly to a steel rail field bonding insulation joint and a bonding method thereof. BACKGROUND
[0002] In the prior art, the bonding insulation clamp plate of the steel rail field bonding insulation joint usually adopts a steel clamp plate, a groove type rubber plate and a segmented splicing type groove steel plate to form a laminated structure, and an insulation layer is formed between the segmented splicing type groove steel plate and the steel rail by bonding to form an insulation barrier; however, in order to ensure the strength of the field bonding insulation joint, the thickness of the insulation layer between the segmented splicing type groove steel plate and the steel rail is small, which causes the insulation layer to have an insulation failure phenomenon, resulting in a safety hazard during railway operation.
[0003] To sum up, how to improve the insulation performance of the field bonding insulation joint and reduce the safety hazard during railway operation is a problem to be solved by the technical personnel in the field at present. SUMMARY
[0004] Therefore, the purpose of the present application is to provide a steel rail field bonding insulation joint and a bonding method thereof, to improve the insulation performance of the field bonding insulation joint and reduce the safety hazard during railway operation.
[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:
[0006] A steel rail field bonding insulation joint for field insulation bonding between steel rails, the steel rails comprising a first steel rail and a second steel rail, the first steel rail and the second steel rail having a gap therebetween, characterized in that,
[0007] The steel rail field bonding insulation joint comprises: an insulation end plate placed between the first steel rail and the second steel rail; a bonding insulation clamp plate comprising a steel clamp plate, a groove type rubber plate and a composite material groove type plate stacked in order from the outside to the inside, the composite material groove type plate being used to adhere and bond with the rail waist wall on both sides of the first steel rail and the second steel rail through an adhesive; the composite material groove type plate is used to form a first to-be-bonded surface on a first surface thereof which is used to adhere to the first steel rail and the second steel rail, the first to-be-bonded surface being rough and suitable for bonding; the bonding insulation clamp plate is in a long strip shape, so that the composite material groove type plate can cover a part of the first steel rail, a part of the second steel rail and the gap between the first steel rail and the second steel rail.
[0008] In some embodiments, the composite material groove type plate is formed by impregnating a plurality of layers of glass fiber cloth with epoxy resin and curing and shaping.
[0009] In some embodiments, a peelable cloth is glued to the first surface of the composite channel plate; the peelable cloth is peeled off the first surface of the composite channel plate to form a rough and suitable bonding surface on the first surface of the composite channel plate in situ.
[0010] In some embodiments, the channel adhesive plate is formed by impregnating a plurality of layers of glass fiber cloth with an epoxy-based adhesive and hot pressing and setting.
[0011] In some embodiments, a peelable cloth is glued to the second surface of the composite channel plate; the peelable cloth is peeled off the second surface of the composite channel plate to form a rough and suitable bonding surface on the second surface of the composite channel plate in situ; the second bonding surface is glued to the channel adhesive plate; the steel clamp plate, the channel adhesive plate, and the composite channel plate are sequentially attached and then heated and pressed to cure and glue to form the glued insulation clamp plate.
[0012] In some embodiments, the glued insulation clamp plate is fixedly connected to the first steel rail and the second steel rail through a fastening assembly.
[0013] In some embodiments, the first steel rail and the second steel rail each have at least two first connecting through holes; the glued insulation clamp plate has at least four second connecting through holes that pass through the steel clamp plate, the channel adhesive plate, and the composite channel plate.
[0014] The fastening assembly includes a fastening bolt that passes through the first connecting through hole and the second connecting through hole, and an insulating sleeve that is provided on the outside of the fastening bolt and is attached to and sealed with the first connecting through hole and the second connecting through hole; a fastening nut that is threadedly connected to the fastening bolt, and a gasket that is provided between the fastening nut and the steel clamp plate; the fastening assembly is at least four in number, and the first connecting through hole, the second connecting through hole, and the fastening assembly correspond one-to-one.
[0015] In some embodiments, the insulating sleeve is made of glass fiber reinforced composite material.
[0016] In some embodiments, the insulating end plate is made of glass fiber reinforced composite material.
[0017] In some embodiments, the top surface of the insulating end plate is flush with the top surface of the first steel rail and the top surface of the second steel rail.
[0018] In some embodiments, the web wall of the first steel rail is flush with the web wall of the second steel rail.
[0019] In some embodiments, the adhesive is an epoxy-based adhesive.
[0020] Alternatively, the adhesive is an acrylic adhesive.
[0021] A steel rail field bonding insulation joint bonding method adopts the steel rail field bonding insulation joint as above;
[0022] The bonding method comprises: pretreating the first steel rail and the second steel rail; placing the insulation end plate in the gap between the first steel rail and the second steel rail and clamping; adjusting the relative positions of the first steel rail and the second steel rail, so that the top surface of the first steel rail and the top surface of the second steel rail are flush, and the web walls of the first steel rail and the second steel rail are flush; tearing off the strippable cloth on the first face of the composite material groove-shaped plate to form a first to-be-bonded surface on site which is rough and suitable for bonding; evenly mixing the adhesive and applying it on the bonded parts of the first steel rail, the second steel rail and the composite material groove-shaped plate, and the first to-be-bonded surface of the composite material groove-shaped plate; corresponding the first connecting through hole and the second connecting through hole to correspondingly bond the composite material groove-shaped plate with the first steel rail and the second steel rail; penetrating the fastening assembly through the first connecting through hole and the second connecting through hole to fix and connect the bonding insulation clamp plate with the first steel rail and the second steel rail; removing the residual adhesive; and polishing the top surface of the insulation end plate to make the top surface of the insulation end plate flush with the top surface of the first steel rail and the top surface of the second steel rail.
[0023] The steel rail field bonding insulation joint provided by the application is used for field insulation bonding between a first steel rail and a second steel rail; wherein an insulation end plate is placed between the gap between the first steel rail and the second steel rail to achieve electrical insulation between the first steel rail and the second steel rail; then a bonding insulation clamp plate is placed in the web of the first steel rail and the second steel rail, and the composite material groove-shaped plate of the bonding insulation clamp plate is attached to the web walls of the first steel rail and the second steel rail, and a first to-be-bonded surface is formed on site on the first face where the composite material groove-shaped plate is attached to the first steel rail and the second steel rail, which is rough and suitable for bonding; the first to-be-bonded surface is bonded with the web walls of the first steel rail and the second steel rail by an adhesive, and the composite material groove-shaped plate can cover part of the first steel rail, part of the second steel rail, and the gap between the first steel rail and the second steel rail, thereby improving the sealing between the first steel rail and the second steel rail and further reducing the phenomenon of poor insulation caused by water penetration through the rail joint; the first steel rail and the second steel rail are mechanically supported by the bonding insulation clamp plate, and the bonding strength between the composite material groove-shaped plate and the first steel rail and the second steel rail is improved by the bonding of the first to-be-bonded surface and the adhesive, thereby ensuring the strength of the field bonding insulation joint; and the adhesive, the composite material groove-shaped plate and the groove-shaped adhesive plate together form an insulation layer by configuring the composite material groove-shaped plate, thereby increasing the thickness of the insulation layer between the steel rail and the steel clamp plate, improving the insulation performance of the bonding insulation joint, and reducing the safety hazards during railway operation. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description only only the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.
[0025] Figure 1 The structural schematic diagram of the steel rail field bonding insulation joint provided by the embodiments of the present application is shown in the figure.
[0026] Figure 2 The side view of the steel rail field bonding insulation joint is shown in the figure. Figure 1
[0027] Figure 3 The structural schematic diagram of the bonding insulation clamp plate provided by the embodiments of the present application is shown in the figure.
[0028] Explanation of reference signs:
[0029] 100-steel rail, 110-first steel rail, 120-second steel rail;
[0030] 200-insulation end plate;
[0031] 300-fastening assembly, 310-fastening bolt, 320-gasket, 330-fastening nut;
[0032] 400-bonding insulation clamp plate, 410-steel clamp plate, 420-groove type rubber plate, 430-composite material groove type plate;
[0033] 500-adhesive;
[0034] 600-insulation sleeve. DETAILED DESCRIPTION
[0035] The technical solutions in the embodiments of the present application will be described clearly and completely in the following description of the embodiments of the present application in combination with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0036] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. The terms used in the following embodiments are only for the purpose of describing the specific embodiments and are not intended to be a limitation on the present application. As used in the specification and the appended claims of the present application, the singular forms “a,” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “one or more,” as used in the embodiments of the present application, mean one, two, or more than two; “and / or” describes associative relationships with respect to associated objects, and means that there can be three kinds of relationships; for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. The character “ / ” generally represents an “or” relationship between the associated objects.
[0037] In this specification, the phrase “one embodiment” or “some embodiments” etc. means that a particular feature, structure or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, the phrases “in one embodiment,” “in some embodiments,” “in other embodiments,” “in additional embodiments” etc. appearing in various places in the specification are not necessarily all referring to the same embodiment, but mean “one or more but not all embodiments,” unless otherwise specifically indicated. The terms “including,” “containing,” “having,” and variations thereof mean “including but not limited to,” unless otherwise specifically indicated.
[0038] The plurality of embodiments of the present application refers to greater than or equal to two. It should be noted that in the description of the embodiments of the present application, the terms “first,” “second,” etc. are only used for the purpose of distinguishing the description and cannot be understood as indicating or implying relative importance, nor can it be understood as indicating or implying order.
[0039] As Figure 1As shown, the rail field bonding insulation joint provided by the embodiments of the present application is used for field insulation bonding between rails 100, the rails 100 including a first rail 110 and a second rail 120, and the first rail 110 and the second rail 120 having a gap therebetween. The rail field bonding insulation joint includes: an insulation end plate 200, which is placed between the gap between the first rail 110 and the second rail 120 to achieve electrical insulation between the first rail 110 and the second rail 120, and through which the first rail 110 and the second rail 120 can achieve buffering and sealing; a bonding insulation clamping plate 400, which includes a steel clamping plate 410, a groove type rubber plate 420 and a composite material groove type plate 430 which are sequentially stacked outside and inside, wherein the composite material groove type plate 430 is bonded and glued to the rail waist wall on both sides of the first rail 110 and the second rail 120 through an adhesive 500 to achieve fixed connection of the bonding insulation clamping plate 400 with the first rail 110 and the second rail 120; and a first rough and suitable bonding surface is formed on a first surface of the composite material groove type plate 430 which is bonded to the first rail 110 and the second rail 120; and the bonding insulation clamping plate 400 is in a long strip shape so that the composite material groove type plate 430 can cover part of the first rail 110, part of the second rail 120 and the gap between the first rail 110 and the second rail 120, thereby improving the sealing between the first rail 110 and the second rail 120 and further reducing the phenomenon of poor insulation caused by water penetration through the rail joint; in this way, the mechanical support between the first rail 110 and the second rail 120 is formed by the bonding insulation clamping plate 400, and the bonding strength between the composite material groove type plate 430 and the first rail 110 and the second rail 120 is improved by the rough and suitable bonding surface formed on site and the adhesive 500, thereby ensuring the strength of the field bonding insulation joint; and the composite material groove type plate 430 is configured to form an insulation layer together with the adhesive 500 and the groove type rubber plate 420, thereby increasing the thickness of the insulation layer between the rails 100 and the steel clamping plate 410, improving the insulation performance of the field bonding insulation joint and reducing the safety hazards during railway operation.
[0040] In actual situations, the top surface of the insulation end plate 200 is flush with the top surface of the first rail 110 and the top surface of the second rail 120, and the rail waist wall of the first rail 110 is flush with the rail waist wall of the second rail 120, so as to reduce the impact between the rails, ensure the stability of the rail circuit and prolong the service life of the field bonding insulation joint.
[0041] The insulation end plate 200 is made of glass fiber reinforced composite material, which has high insulation, high strength, good fatigue resistance and impact resistance, good corrosion resistance and improved insulation performance and connection strength of the insulation end plate 200.
[0042] As Figures 1-3 shown, the composite trough plate 430 is impregnated with multiple layers of glass fiber cloth by epoxy resin and is cured and shaped to form, so that the composite trough plate 430 has high support strength, good corrosion resistance, high insulation performance and impact resistance and fatigue resistance.
[0043] In this way, compared with the prior art, only the adhesive 500 between the trough steel plate and the rail 100 can form an insulation layer, and the thickness of the insulation layer in the prior art is only 0.6mm; in the present application, the composite trough plate 430 formed by impregnating multiple layers of glass fiber cloth with epoxy resin replaces the sectional splicing type trough steel plate, so that the adhesive 500, the composite trough plate 430 and the trough adhesive plate 420 together form an insulation layer, which can make the thickness of the insulation layer reach 2.6mm, so that the insulation performance of the field bonding insulation joint provided by the present application is significantly improved, and the safety hidden danger in the process of railway operation is reduced.
[0044] As shown in Table 1, the detection results of the field bonding insulation joints corresponding to the sectional splicing type trough steel plate and the composite trough plate can be compared, the composite trough plate 430 ensures the shear performance and fatigue performance of the field bonding insulation joint as a whole, while greatly improving the electrical insulation performance.
[0045] Table 1 Detection results of field bonding insulation joints corresponding to sectional splicing type trough steel plate and composite trough plate
[0046] In order to further improve the connection strength of the field bonding insulation clamp plate 400, the second bonding surface to be bonded is formed on the second surface of the composite trough plate 430 which is bonded with the trough adhesive plate 420, which is rough and suitable for bonding. The second bonding surface to be bonded is bonded with the trough adhesive plate 420 to improve the bonding strength of the composite trough plate 430 and the trough adhesive plate 420, further improve the connection strength of the bonding insulation clamp plate 400, and further ensure the support strength of the field bonding insulation joint.
[0047] In order to ensure the bonding effect of the first bonding surface to be bonded and the second bonding surface to be bonded, the composite trough plate 430 is bonded with a strippable cloth on the first surface and the second surface, so as to avoid damage and pollution of the composite trough plate 430 by external impurities before bonding, and further improve the overall strength of the composite trough plate 430.
[0048] In the case of stripping the first face and the second face of the composite material groove-shaped plate 430, the first and second to-be-glued faces can be formed on site, ensuring the gluing quality of the first and second to-be-glued faces, improving the gluing strength of the composite material groove-shaped plate 430 and the steel rail 100 and the steel clamp plate 410, and further improving the support strength of the on-site glued insulation joint.
[0049] As shown in Figure 3 , the groove-shaped glue plate 420 provided by the embodiment of the application is formed by impregnating the multilayer glass fiber cloth with the epoxy resin-based adhesive and hot pressing and shaping, so that the groove-shaped glue plate 420 has high adhesion, high support strength, good corrosion resistance, high insulation performance, and impact and fatigue resistance, further improving the strength of the on-site glued insulation clamp plate 400 and the support strength of the on-site glued insulation joint.
[0050] As shown in Figures 1-2 , the glued insulation clamp plate 400 is fixedly connected with the first steel rail 110 and the second steel rail 120 through the fastening assembly 300, and the connection and support strength of the glued insulation joint are further improved through the fastening assembly 300.
[0051] The first steel rail 110 and the second steel rail 120 are each provided with at least two first connecting through holes, and the glued insulation clamp plate 400 is provided with at least four second connecting through holes penetrating the steel clamp plate 410, the groove-shaped glue plate 420, and the composite material groove-shaped plate 430, so that the first connecting through holes and the second connecting through holes correspond one by one, so as to facilitate the connection of the fastening assembly 300.
[0052] As shown in Figure 1 , the fastening assembly 300 includes a fastening bolt 310 penetrating the first connecting through hole and the second connecting through hole, and an insulating sleeve 600 is provided on the fastening bolt 310, and the insulating sleeve 600 is sealed and matched with the first connecting through hole and the second connecting through hole, so as to ensure the insulation sealing between the fastening bolt 310 and the steel rail 100 and the glued insulation clamp plate 400; a fastening nut 330 is threadedly connected with one end of the fastening bolt 310, and a gasket 320 is arranged between the fastening nut 330 and the steel clamp plate 410, so as to improve the connection strength of the fastening nut 330 and the fastening bolt 310, and further improve the connection strength of the glued insulation clamp plate 400 and the steel rail 100.
[0053] As shown in Figure 2 , the fastening assembly 300 is also at least four, and the first connecting through hole, the second connecting through hole, and the fastening assembly 300 correspond one by one, so as to ensure that the fastening assembly 300 fixedly connects the glued insulation clamp plate 400 and the steel rail 100.
[0054] In order to improve the insulation performance and the connection strength, the insulating sleeve 600 is made of a glass fiber reinforced composite material, so as to improve the insulation performance and the connection strength between the fastening bolt 310 and the rail 100 and the adhesive insulating clamp plate 400, and further improve the insulation performance of the adhesive insulating joint.
[0055] In some embodiments, the adhesive 500 is an epoxy resin-based adhesive, which has high bonding strength and corrosion resistance, and can be quickly cured, so as to improve the bonding strength and the bonding efficiency.
[0056] In other embodiments, the adhesive 500 is an acrylic adhesive, which can be quickly cured and has good bonding quality, so as to improve the bonding strength and the bonding efficiency.
[0057] The rail field adhesive insulating joint provided by the embodiments of the present application forms an insulating layer by the adhesive 500, the composite material groove-shaped plate 430 and the groove-shaped adhesive plate 420, increases the thickness of the insulating layer between the rail 100 and the steel clamp plate 410, and improves the insulation performance of the field adhesive insulating joint. The first to-be-glued surface formed by the composite material groove-shaped plate 430 is bonded to the rail web wall of the first rail and the second rail by the adhesive 500, and the composite material groove-shaped plate can cover part of the first rail, part of the second rail and the gap between the first rail and the second rail, so as to improve the sealing between the first rail and the second rail and further reduce the phenomenon of poor insulation caused by water penetration through the rail joint. The long strip-shaped adhesive insulating clamp plate 400 which can cover part of the first rail 110, part of the second rail 120 and the gap between the first rail 110 and the second rail 120 improves the support strength, and then the fastening assembly 300 is used to fixedly connect the adhesive insulating clamp plate 400 and the rail 100, so as to further ensure the support strength of the field adhesive insulating joint. In this way, on the basis of ensuring the connection strength of the field adhesive insulating joint, the insulation performance of the field adhesive insulating joint is improved, and the safety hidden danger in the process of railway operation is reduced.
[0058] The embodiments of the present application also provide an adhesive method of a rail field adhesive insulating joint, which adopts the rail field adhesive insulating joint described above, and the adhesive method specifically includes the following steps.
[0059] S100, pretreating the first rail 110 and the second rail 120
[0060] Tools are used to dry, polish, detect, repair, chamfer and clean the first rail 110 and the second rail 120, so as to improve the subsequent connection effect.
[0061] S200, placing the insulating end plate 200 between the gap between the first rail 110 and the second rail 120 and gluing the insulating end plate 200 to the first rail 110 and the second rail 120 to ensure the insulation effect of the insulating end plate 200.
[0062] S300, adjusting the relative positions of the first rail 110 and the second rail 120
[0063] Adjusting the top surfaces of the first rail 110 and the second rail 120 to be flush, and adjusting the rail web walls of the first rail 110 and the second rail 120 to be flush, to reduce the impact between the rails and ensure the stability of the rail circuit.
[0064] S400, tearing off the first surface of the composite material groove plate 430, and forming a rough and suitable first gluing surface on site.
[0065] S500, gluing the rail 100 and the glued insulating clamp plate 400
[0066] S510, after mixing the adhesive 500 evenly, apply it to the parts of the first rail 110 and the second rail 120 to be bonded with the composite material groove plate 430, and apply the adhesive 500 to the first gluing surface of the composite material groove plate 430;
[0067] S520, corresponding the first connecting through hole and the second connecting through hole to correspondingly glue the composite material groove plate 430 with the first rail 110 and the second rail 120, to complete the gluing of the glued insulating clamp plate 400 with the first rail 110 and the second rail 120.
[0068] S600, fixing the connection between the rail 100 and the glued insulating clamp plate 400 by the fastening assembly 300
[0069] The fastening bolt 310 with the insulating sleeve 600 is inserted through the first connecting through hole and the second connecting through hole, and then the gasket 320 is bonded with the steel clamp plate 410, and the fastening nut 330 is screwed with the fastening bolt 310 to fix the connection between the rail 100 and the glued insulating clamp plate 400.
[0070] S700, removing the residual adhesive 500.
[0071] S800, polishing the top surface of the insulating end plate 200 to make the top surface of the insulating end plate 200 flush with the top surface of the first rail 110 and the top surface of the second rail 120.
[0072] The foregoing description of embodiments of the application has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the application to the precise form disclosed. Many modifications and variations are possible in light of the above teaching. It is intended that the scope of the application be limited not with this detailed description, but rather by the claims appended hereto.
Claims
1. A steel rail field bonding insulation joint for field bonding insulation between steel rails (100), the steel rails (100) comprising a first steel rail (110) and a second steel rail (120) with a gap between the first steel rail (110) and the second steel rail (120), characterized in that, the steel rail field bonding insulation joint comprises: an insulation end plate (200) placed between the gap between the first steel rail (110) and the second steel rail (120); a bonding insulation clamping plate (400) comprising a steel clamping plate (410), a groove type glue plate (420), and a composite material groove type plate (430) stacked in order from the outside to the inside, the composite material groove type plate (430) being used to adhere and bond with the rail waist wall on both sides of the first steel rail (110) and the second steel rail (120) through an adhesive (500); the composite material groove type plate (430) is used to form a first rough and suitable bonding surface to be bonded on the first surface adhered to the first steel rail (110) and the second steel rail (120); the bonding insulation clamping plate (400) is in a long strip structure, so that the composite material groove type plate (430) can cover part of the first steel rail (110), part of the second steel rail (120), and the gap between the first steel rail (110) and the second steel rail (120).
2. A field bonded insulated rail joint according to claim 1, characterised in that, The composite material groove type plate (430) is formed by impregnating multiple layers of glass fiber cloth with epoxy resin and curing and shaping.
3. A field bonded insulated rail joint according to claim 2, characterised in that, The first surface of the composite material groove type plate (430) is bonded with a peelable cloth; The peelable cloth is peeled off the first surface of the composite material groove type plate (430) to form a first rough and suitable bonding surface to be bonded on site.
4. The field bonded insulated rail joint of claim 1 wherein, The groove type glue plate (420) is formed by impregnating multiple layers of glass fiber cloth with an epoxy resin-based adhesive and hot pressing and shaping.
5. The steel rail field bonding insulation joint according to claim 1, characterized in that, the second surface of the composite groove type plate (430) adhered to the groove type glue plate (420) is bonded with a peelable cloth, and the peelable cloth is peeled off the second surface of the composite groove type plate (430) to form a second rough and suitable bonding surface to be bonded on site; the second bonding surface to be bonded is bonded with the groove type glue plate (420); the steel clamping plate (410), the groove type glue plate (420), and the composite material groove type plate (430) are sequentially adhered and then heated and pressed to cure and bond to prepare the bonding insulation clamping plate (400).
6. The field bonded insulated rail joint of claim 1 wherein, The bonding insulation clamping plate (400) is fixedly connected with the first steel rail (110) and the second steel rail (120) through a fastening assembly (300).
7. A field bonded insulated rail joint according to claim 6, characterised in that, The first steel rail (110) and the second steel rail (120) each have at least two first connection through holes; The bonding insulation clamping plate (400) has at least four second connection through holes penetrating the steel clamping plate (410), the groove type glue plate (420), and the composite material groove type plate (430); the fastening assembly (300) comprises: a fastening bolt (310) penetrating the first connecting through hole and the second connecting through hole, and an insulating sleeve (600) being sleeved on the fastening bolt (310) and being sealed with the first connecting through hole and the second connecting through hole; a fastening nut (330) being threadedly matched with the fastening bolt (310), and a gasket (320) being arranged between the fastening nut (330) and the steel clamp plate (410); the fastening assembly (300) is at least four, and the first connecting through hole, the second connecting through hole and the fastening assembly (300) are one-to-one corresponding.
8. A field bonded insulated rail joint according to claim 7, characterised in that, the insulating sleeve (600) is a glass fiber reinforced composite material; and / or, the insulating end plate (200) is a glass fiber reinforced composite material.
9. The field bonded insulated rail joint of claim 1 wherein, a top surface of the insulating end plate (200) is flush with a top surface of the first rail (110) and a top surface of the second rail (120); and / or, a web wall of the first rail (110) is flush with a web wall of the second rail (120).
10. The field bonded insulated rail joint of claim 1 wherein, the adhesive (500) is an epoxy resin-based adhesive; or, the adhesive (500) is an acrylic ester-based adhesive.
11. A method of field bonding an insulated joint of a steel rail, characterized in that, the rail field bonding insulating joint according to any one of claims 1-10; the bonding method comprises: pretreating the first rail (110) and the second rail (120); placing the insulating end plate (200) in a gap between the first rail (110) and the second rail (120) and clamping; adjusting the relative positions of the first rail (110) and the second rail (120) so that the top surface of the first rail (110) and the top surface of the second rail (120) are flush, and the web wall of the first rail (110) and the web wall of the second rail (120) are flush; tearing off the peelable cloth on the first surface of the composite material channel plate (430) to form a rough and suitable bonding first surface to be bonded on site; mixing the adhesive (500) uniformly and then applying it to the bonded parts of the first rail (110), the second rail (120) and the composite material channel plate (430), and the first surface to be bonded of the composite material channel plate (430); corresponding the first connecting through hole and the second connecting through hole to correspondingly bond the composite material channel plate (430) with the first rail (110) and the second rail (120); penetrating the fastening assembly (300) through the first connecting through hole and the second connecting through hole to fix the bonded insulating clamp plate (400) with the first rail (110) and the second rail (120); cleaning up the residual adhesive (500); polishing the top surface of the insulating end plate (200) so that the top surface of the insulating end plate (200) is flush with the top surface of the first rail (110) and the top surface of the second rail (120).