阅读说明：本技术 50kg/m钢轨与80R钢轨的连接方法 (Method for connecting 50kg/m steel rail and 80R steel rail ) 是由 刘皓 朱洪志 于 2020-06-30 设计创作，主要内容包括：本发明供了一种50kg/m钢轨与80R钢轨的连接方法,包括：设置异型接头；调整50kg/m钢轨与80R钢轨的相对位置,使50kg/m钢轨的顶面和80R钢轨的顶面齐平,并使50kg/m钢轨的轨头朝向工作边的端面和80R钢轨的轨头朝向工作边的端面齐平；通过异型接头将50kg/m钢轨与80R钢轨固定连接。本发明所提供的50kg/m钢轨与80R钢轨的连接方法,通过设置异型接头,实现了50kg/m钢轨与80R钢轨的连接,并通过合理设置第一连接段、过渡段和第二连接段的相对位置,能够保障列车通过时的稳定性与安全性,连接方式简单、操作方便,具有极高的使用价值和经济价值。(The invention provides a method for connecting a 50kg/m steel rail and an 80R steel rail, which comprises the following steps: arranging a special-shaped joint; adjusting the relative positions of the 50kg/m steel rail and the 80R steel rail to enable the top surface of the 50kg/m steel rail to be flush with the top surface of the 80R steel rail, and enabling the end surface, facing the working edge, of the rail head of the 50kg/m steel rail to be flush with the end surface, facing the working edge, of the rail head of the 80R steel rail; the 50kg/m steel rail is fixedly connected with the 80R steel rail through the special-shaped joint. According to the method for connecting the 50kg/m steel rail and the 80R steel rail, the 50kg/m steel rail and the 80R steel rail are connected by arranging the special-shaped joint, and the stability and the safety of a train passing through can be guaranteed by reasonably arranging the relative positions of the first connecting section, the transition section and the second connecting section, so that the method is simple in connection mode, convenient to operate and high in use value and economic value.)

1. A method for connecting a 50kg/m steel rail and an 80R steel rail is characterized by comprising the following steps:

arranging a special-shaped joint (100);

adjusting the relative positions of the 50kg/m rail (200) and the 80R rail (300) to enable the top surface of the 50kg/m rail (200) to be flush with the top surface of the 80R rail (300), and enable the end surface, facing the working edge, of the rail head (101A) of the 50kg/m rail (200) to be flush with the end surface, facing the working edge, of the rail head (101B) of the 80R rail (300);

and fixedly connecting the 50kg/m steel rail (200) with the 80R steel rail (300) through the special-shaped joint (100).

2. The method for joining a 50kg/m rail to an 80R rail according to claim 1, wherein the profiled joint (100) comprises a profiled rail (10) and a joint clamp (20);

the step of providing a profiled joint (100) comprises:

arranging a special-shaped steel rail (10), arranging one end of the special-shaped steel rail (10) into a first connecting section (11) in the rail shape of a 50kg/m steel rail, and arranging the other end of the special-shaped steel rail into a second connecting section (13) in the rail shape of an 80R steel rail;

arranging a transition section (12) of the special-shaped steel rail, and connecting the first connecting section (11) with the second connecting section (13) through the transition section (12) to enable the special-shaped steel rail (10) to be transited from the rail shape of the 50kg/m steel rail (200) to the rail shape of the 80R steel rail (300);

the step of fixedly connecting the 50kg/m rail (200) to the 80R rail (300) by means of the profile joint (100) comprises:

-butting said first connecting section (11) against said 50kg/m rail (200);

butting the second connecting section (13) with the 80R steel rail (300);

a joint clamping plate (20) is arranged on the special-shaped steel rail (10);

the first coupling segment (20) is fixed to the 50kg/m rail (200) by the joint clamp (20), and the second coupling segment (13) is fixed to the 80R rail (300) by the joint clamp (20), so that the 50kg/m rail (200) is fixedly connected to the 80R rail (300).

3. The method for joining a 50kg/m rail to an 80R rail according to claim 2, wherein a transition section (12) of the profiled rail (10) is provided, the first connection section (11) and the second connection section (13) are connected by the transition section (12), and the step of transferring the profiled rail (10) from the rail profile of the 50kg/m rail (200) to the rail profile of the 80R rail (300) comprises:

setting the shape of the end surface of the transition section (12) connected with the first connecting section (11) to the shape of the section of the 50kg/m steel rail (200);

setting the shape of the end surface of the transition section (12) connected with the second connecting section (13) to the shape of the section of the 80R steel rail (300);

arranging the end surface of the rail head (101C) of the first connecting section (11) facing the working edge and the end surface of the rail head (101D) of the transition section (12) facing the working edge in a flush manner;

and arranging the end surface of the rail head (101D) of the transition section (12) facing the working edge to be flush with the end surface of the rail head (101E) of the second connecting section (13) facing the working edge.

4. The method of joining a 50kg/m rail to an 80R rail according to claim 2,

the length of the transition section (12) is in the range of 140mm to 180 mm; and/or

The length of the second connecting section (13) is in the range of 200mm to 1050 mm.

5. A method of joining a 50kg/m rail to an 80R rail according to any one of claims 2 to 4, characterised in that the end face of the splice plate (20) facing the web (102C, 102E) of the profiled rail (10) comprises an upper ramp (201), a mounting face (202) and a lower ramp (203) which are connected;

the method for installing the joint clamping plate (20) on the special-shaped steel rail (10) comprises the following steps:

the mounting surface (202) of the joint clamping plate (20) faces the rail webs (102C, 102E) of the special-shaped steel rail, and the joint clamping plate (20) is installed in a concave structure surrounded by rail heads (101C, 101E) of the special-shaped steel rail (10), rail webs (102C, 102E) of the special-shaped steel rail (10) and rail bottoms (103C, 103E) of the special-shaped steel rail (10);

connecting the upper inclined surface (201) of the joint splint (20) with the rail heads (101C, 101E) of the special-shaped steel rail (10);

connecting the lower inclined surface (203) of the joint clamping plate (20) with the rail bottoms (103C, 103E) of the special-shaped steel rail (10).

6. Method for joining a 50kg/m rail to an 80R rail according to any one of claims 2 to 4, characterized in that the step of mounting the joint clamp (20) on the profiled rail (10) is preceded by the steps of:

arranging a joint clamping plate (20), and arranging a plurality of round holes (204) and a plurality of waist holes (205) on the joint clamping plate (20), wherein the total number of the round holes (204) and the waist holes (205) is even;

arranging a plurality of round holes (204) and a plurality of waist holes (205) at intervals along the extension direction of the joint splint (20); the waist holes (205) are arranged between two adjacent round holes (204), and the round holes (204) are arranged between two adjacent waist holes (205);

a plurality of through holes (104) opposite to the round holes (204) and the waist holes (205) are formed in the rail waists (102C, 102E) of the special-shaped steel rail (10);

the method for installing the joint clamping plate (20) on the special-shaped steel rail (10) comprises the following steps: and a bolt (31) is used for penetrating through the through hole (104) and the round hole (204) which are oppositely arranged, and a bolt (31) is used for penetrating through the through hole (104) and the waist hole (205) which are oppositely arranged, so that the joint clamping plate (20) is connected with the special-shaped steel rail (10) through the bolt (31).

7. Method for joining a 50kg/m rail to an 80R rail according to claim 1, characterized in that said profiled joint (100) comprises a first profiled clamp (40) and a second profiled clamp (50);

the step of fixedly connecting the 50kg/m rail (200) to the 80R rail (300) by means of the profile joint (100) comprises:

connecting one end of the 50kg/m rail (200) with one end of the 80R rail (300);

arranging the first special-shaped clamping plate (40) at one side of the working edge of the 50kg/m steel rail (200);

arranging the second special-shaped clamp plate (50) on one side of the non-working edge of the 50kg/m steel rail (200);

fixedly connecting one end of the first special-shaped clamping plate (40) and one end of the second special-shaped clamping plate (50) with the 50kg/m steel rail (200);

and fixedly connecting the other end of the first special-shaped clamping plate (40) and the other end of the second special-shaped clamping plate (50) with the 80R steel rail (300).

8. The method of joining a 50kg/m rail to an 80R rail according to claim 7,

the first profiled splint (40) comprising:

a first connection portion (41) bolted to the 50kg/m rail (200);

a second connection part (42) bolted to the 80R rail (300), the first connection part (41) having a height greater than that of the second connection part (42);

the two ends of the first transition part (43) are respectively connected with the first connecting part (41) and the second connecting part (42), the first transition part (43) comprises a first slope surface (44), the first slope surface (44) is positioned at the connecting part of the 50kg/m steel rail (200) and the 80R steel rail (300), and the end surfaces of the first connecting part (41), the second connecting part (42) and the first transition part (43) on the side departing from the 50kg/m steel rail (200) are flush;

the second profiled splint (50) comprising:

a third connection part (51) which is connected with the 50kg/m steel rail (200) through bolts;

a fourth connection part (52) bolted to the 80R rail (300), the fourth connection part (52) having a thickness greater than that of the third connection part (51); the height of the third connecting part (51) is greater than that of the fourth connecting part (52);

the two ends of the second transition part (53) are respectively connected with the third connecting part (51) and the fourth connecting part (52), the second transition part (53) comprises a second slope surface (54), the second slope surface (54) is positioned at the connecting part of the 50kg/m steel rail (200) and the 80R steel rail (300), and the end surfaces of the third connecting part (51), the fourth connecting part (52) and the second transition part (53) on the side departing from the 50kg/m steel rail (200) are flush;

wherein the thickness is the distance from the non-working edge of the 50kg/m steel rail (200) to the working edge of the 50kg/m steel rail (200) in the direction; the height is a distance from the rail head (101A) of the 50kg/m rail (200) to the rail bottom (103A) of the 50kg/m rail (200).

9. The method of joining a 50kg/m rail to an 80R rail according to claim 8,

the difference in thickness between the third connecting portion (51) and the fourth connecting portion (52) is in the range of 6.5mm to 7.5 mm.

10. The method of joining a 50kg/m rail to an 80R rail according to claim 8 or 9,

the step of fixedly connecting one end of the first special-shaped clamping plate (40) and one end of the second special-shaped clamping plate (50) with the 50kg/m steel rail comprises the following steps:

the first connecting part (41) is provided with 3 bolt holes (60), and the third connecting part (51) is provided with 3 bolt holes (60);

a bolt (31) is inserted into a bolt hole (60) on the first connecting part (41) and a bolt hole (60) on the third connecting part (51) which are oppositely arranged, so that the first connecting part (41), the 50kg/m steel rail (200) and the third connecting part (51) are connected through bolts;

the step of fixedly connecting the other end of the first profiled clamp (40) and the other end of the second profiled clamp (50) to the 80R rail (300) comprises:

2 bolt holes (60) are formed in the second connecting portion (42), and 2 bolt holes (60) are formed in the fourth connecting portion (52);

and bolts (31) are inserted into the bolt holes (60) on the second connecting part (42) and the bolt holes (60) on the fourth connecting part (52) which are oppositely arranged, so that the second connecting part (42), the 80R steel rail (300) and the fourth connecting part (52) are connected through bolts.

Technical Field

The invention relates to the technical field of railways, in particular to a method for connecting a 50kg/m steel rail and an 80R steel rail.

Background

At present, the existing railways in China are paved by adopting Chinese standard steel rails, and the rail type end faces of the 50kg/m steel rail and the British standard 80R steel rail are greatly different and cannot be directly connected. At present, the precedent that the 50kg/m steel rail and the railway line are connected by adopting the British standard 80R steel rail in China does not exist at home and abroad.

Disclosure of Invention

In order to solve at least one of the above problems, it is an object of the present invention to provide a method for joining a 50kg/m rail and an 80R rail.

In order to achieve the above object, an embodiment of the present invention provides a method for connecting a 50kg/m rail and an 80R rail, including: arranging a special-shaped joint; adjusting the relative positions of the 50kg/m steel rail and the 80R steel rail to enable the top surface of the 50kg/m steel rail to be flush with the top surface of the 80R steel rail, and enabling the end surface, facing the working edge, of the rail head of the 50kg/m steel rail to be flush with the end surface, facing the working edge, of the rail head of the 80R steel rail; and fixedly connecting the 50kg/m steel rail with the 80R steel rail through the special-shaped joint.

The method for connecting the 50kg/m steel rail and the 80R steel rail provided by the embodiment is provided with the special-shaped joint, and the special-shaped joint is used for connecting the 50kg/m steel rail and the 80R steel rail so as to overcome the problem that the size difference of the rail-shaped end faces of the two steel rails of the 50kg/m steel rail and the 80R steel rail is large.

Meanwhile, the top surface of the 50kg/m steel rail and the top surface of the 80R steel rail are arranged to be flush, the end surface of the 50kg/m steel rail, which is positioned on one side of the working edge, and the end surface of the 80R steel rail, which is positioned on one side of the working edge, are flush, so that the smoothness of the special-shaped steel rail is ensured, the smoothness and the safety of a train passing through the 50kg/m steel rail and the 80R steel rail are further ensured, the stability and the safety of the train during passing can be ensured, the connection mode is simple, the operation is convenient, and the use value and the economic value are extremely high.

In addition, the method for connecting the 50kg/m steel rail and the 80R steel rail in the embodiment provided by the invention can also have the following additional technical characteristics:

in the above embodiment, the profiled joint comprises a profiled rail and a joint clamp; the step of arranging the special-shaped joint comprises the following steps: arranging a special-shaped steel rail, wherein one end of the special-shaped steel rail is arranged into a first connecting section in a rail shape of a 50kg/m steel rail, and the other end of the special-shaped steel rail is arranged into a second connecting section in a rail shape of an 80R steel rail; arranging a transition section of the special-shaped steel rail, and connecting the first connecting section and the second connecting section through the transition section to enable the special-shaped steel rail to be transited from the rail shape of the 50kg/m steel rail to the rail shape of the 80R steel rail; the step of fixedly connecting the 50kg/m rail and the 80R rail through the special-shaped joint comprises the following steps: butting the first connecting section with the 50kg/m steel rail; butting the second connecting section with the 80R steel rail; mounting a joint splint on the special-shaped steel rail; and fixing the first connecting section and the 50kg/m steel rail by using the joint clamping plate, and fixing the second connecting section and the 80R steel rail by using the joint clamping plate so as to fixedly connect the 50kg/m steel rail and the 80R steel rail.

In the above embodiment, the step of providing a transition section of the deformed steel rail, and connecting the first connecting section and the second connecting section by the transition section to transition the deformed steel rail from the rail shape of the 50kg/m steel rail to the rail shape of the 80R steel rail includes: setting the shape of the end surface of the transition section connected with the first connecting section to be the shape of the section of the 50kg/m steel rail; setting the shape of the end surface of the transition section connected with the second connecting section to be the shape of the section of the 80R steel rail; arranging the end surface of the rail head of the first connecting section facing the working edge and the end surface of the rail head of the transition section facing the working edge in a flush manner; and arranging the end surface of the rail head of the transition section facing the working edge to be flush with the end surface of the rail head of the second connecting section facing the working edge.

In any of the above embodiments, the length of the transition section is in the range of 140mm to 180 mm; and/or the length of the second connecting section is in the range of 200mm to 1050 mm.

In any of the above embodiments, the end surface of the joint splint facing the web side of the special-shaped steel rail comprises an upper inclined surface, a mounting surface and a lower inclined surface which are connected with each other; the method for installing the joint clamping plate on the special-shaped steel rail comprises the following steps: the mounting surface of the joint clamping plate faces the rail web direction of the special-shaped steel rail, and the joint clamping plate is arranged in a concave structure surrounded by the rail head of the special-shaped steel rail, the rail web of the special-shaped steel rail and the rail bottom of the special-shaped steel rail; connecting the upper inclined plane of the joint clamping plate with the rail head of the special-shaped steel rail; and connecting the lower inclined plane of the joint clamping plate with the rail bottom of the special-shaped steel rail.

In any of the above embodiments, the step of mounting the splice plate on the profiled rail comprises: arranging a joint clamping plate, and arranging a plurality of round holes and a plurality of waist holes on the joint clamping plate, wherein the total number of the round holes and the waist holes is an even number; arranging the round holes and the waist holes at intervals along the extension direction of the joint clamping plate; the waist holes are arranged between two adjacent round holes, and the round holes are arranged between two adjacent waist holes; a plurality of through holes which are respectively opposite to the round holes and the waist holes are formed in the rail web of the special-shaped steel rail; the step of installing the adapter clip on the profiled rail comprises the following steps: and bolts penetrate through the through holes and the round holes which are oppositely arranged, and penetrate through the through holes and the waist holes which are oppositely arranged, so that the joint clamping plates are connected with the special-shaped steel rails through the bolts.

In the above embodiment, the profiled joint comprises a first profiled clamp and a second profiled clamp; the step of fixedly connecting the 50kg/m rail and the 80R rail by the special-shaped joint comprises the following steps: connecting one end of the 50kg/m steel rail with one end of the 80R steel rail; arranging the first special-shaped clamp plate on one side of the working edge of the 50kg/m steel rail; arranging the second special-shaped clamp plate on one side of the non-working edge of the 50kg/m steel rail; fixedly connecting one end of the first special-shaped clamping plate and one end of the second special-shaped clamping plate with the 50kg/m steel rail; and fixedly connecting the other end of the first special-shaped clamping plate and the other end of the second special-shaped clamping plate with the 80R steel rail.

In the above embodiment, the first profiled cleat comprises: the first connecting part is connected with the 50kg/m steel rail through a bolt; the second connecting part is in bolted connection with the 80R steel rail, and the height of the first connecting part is greater than that of the second connecting part; the two ends of the first transition part are respectively connected with the first connecting part and the second connecting part, the first transition part comprises a first slope surface, the first slope surface is positioned at the connecting part of the 50kg/m steel rail and the 80R steel rail, and the end surfaces of the first connecting part, the second connecting part and the first transition part, which are deviated from one side of 50kg/m, are flush; the second profiled cleat comprises: the third connecting part is connected with the 50kg/m steel rail through bolts; the fourth connecting part is in bolted connection with the 80R steel rail, and the thickness of the fourth connecting part is greater than that of the third connecting part; the height of the third connecting part is greater than that of the fourth connecting part; the two ends of the second transition part are respectively connected with the third connecting part and the fourth connecting part, the second transition part comprises a second slope surface, the second slope surface is positioned at the connecting part of the 50kg/m steel rail and the 80R steel rail, and the end surfaces of the third connecting part, the fourth connecting part and the second transition part, which are deviated from one side of 50kg/m, are flush; wherein the thickness is the distance from the non-working edge of the 50kg/m steel rail to the working edge of the 50kg/m steel rail in the direction; the height is the distance from the rail head of the 50kg/m steel rail to the rail bottom of the 50kg/m steel rail.

In the above embodiment, the difference in thickness between the third connecting portion and the fourth connecting portion is in the range of 6.5mm to 7.5 mm.

In any of the above embodiments, the step of fixedly connecting one end of the first profiled clamp and one end of the second profiled clamp to the 50kg/m rail includes: the first connecting part is provided with 3 bolt holes, and the third connecting part is provided with 3 bolt holes; bolts are arranged in bolt holes on the first connecting part and bolt holes on the third connecting part which are oppositely arranged, so that the first connecting part, the 50kg/m steel rail and the third connecting part are connected through bolts; the step of fixedly connecting the other end of the first special-shaped clamp plate and the other end of the second special-shaped clamp plate with the 80R steel rail comprises the following steps: 2 bolt holes are formed in the second connecting portion, and 2 bolt holes are formed in the fourth connecting portion; and bolts are arranged in the bolt holes on the second connecting part and the fourth connecting part which are oppositely arranged in a penetrating way, so that the second connecting part, the 80R steel rail and the fourth connecting part are connected through the bolts.

In any of the above embodiments, the end face of the first connection portion on the side facing the working edge of the 50kg/m rail includes an upper inclined surface, a mounting surface and a lower inclined surface which are connected; the upper inclined surface of the first connecting part is in contact fit with the rail head of the 50kg/m steel rail, the lower inclined surface of the first connecting part is in contact fit with the rail bottom of the 50kg/m steel rail, and the mounting surface of the first connecting part protrudes to the rail web of the 50kg/m steel rail. The end face of one side, facing the working edge of the 80R steel rail, of the second connecting part comprises an upper inclined face, a mounting face and a lower inclined face which are connected; the upper inclined plane of the second connecting part is in contact fit with the rail head of the 80R steel rail, the lower inclined plane of the second connecting part is in contact fit with the rail bottom of the 80R steel rail, and the mounting surface of the second connecting part protrudes to the rail web of the 80R steel rail. The end face of one side of the third connecting part facing the non-working edge of the 50kg/m steel rail comprises an upper inclined surface, a mounting surface and a lower inclined surface which are connected; the upper inclined plane of the third connecting part is in contact fit with the rail head of the 50kg/m steel rail, the lower inclined plane of the third connecting part is in contact fit with the rail bottom of the 50kg/m steel rail, and the mounting surface of the third connecting part protrudes to the rail web of the 50kg/m steel rail. The end face of one side, facing the non-working edge of the 80R steel rail, of the fourth connecting part comprises an upper inclined surface, a mounting surface and a lower inclined surface which are connected; the upper inclined plane of the fourth connecting part is in contact fit with the rail head of the 80R steel rail, the lower inclined plane of the fourth connecting part is in contact fit with the rail bottom of the 80R steel rail, and the mounting surface of the fourth connecting part protrudes to the rail web of the 80R steel rail.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a block flow diagram of a method of joining a 50kg/m rail to an 80R rail according to some embodiments of the invention;

FIG. 2 is a block flow diagram of a method of joining a 50kg/m rail to an 80R rail according to some embodiments of the invention;

FIG. 3 is a block flow diagram of step S120 in some embodiments of the invention;

FIG. 4 is a block flow diagram of a method of joining a 50kg/m rail to an 80R rail according to some embodiments of the invention;

FIG. 5 is a block flow diagram of step S160 in some embodiments of the invention;

FIG. 6 is a block flow diagram of step S180 in some embodiments of the invention;

FIG. 7 is a block flow diagram of a method of joining a 50kg/m rail to an 80R rail according to some embodiments of the invention;

FIG. 8 is a block flow diagram of a method of joining a 50kg/m rail to an 80R rail in accordance with certain embodiments of the present invention;

FIG. 9 is a schematic view of the configuration of the profiled rail and the splice holder plate according to some embodiments of the invention;

FIG. 10 is a schematic structural view of a profiled rail according to some embodiments of the present invention;

FIG. 11 is a top view of the profiled rail shown in FIG. 10;

FIG. 12 is a front view of the profiled rail shown in FIG. 10;

FIG. 13 is a side elevational view of the profiled rail illustrated in FIG. 10;

FIG. 14 is a schematic view of the configuration of the profiled rail and splice holder plate according to some embodiments of the invention;

FIG. 15 is a schematic view of the first splint/second splint in some embodiments of the present invention;

FIG. 16 is a perspective view of a first splint/second splint according to some embodiments of the invention;

FIG. 17 is a schematic structural view of a 50kg/m rail and an 80R rail in accordance with certain embodiments of the present invention;

FIG. 18 is a side view of a 50kg/m rail and an 80R rail in accordance with certain embodiments of the invention;

FIG. 19 is a perspective view of a first profiled cleat in some embodiments of the invention;

FIG. 20 is a side elevational view of the first profiled cleat of FIG. 19;

FIG. 21 is a perspective view of a second shaped cleat according to some embodiments of the invention;

FIG. 22 is a side elevational view of the first profiled cleat of FIG. 21;

FIG. 23 is a schematic structural view of a 50kg/m rail according to some embodiments of the present invention;

FIG. 24 is a schematic structural view of an 80R rail according to some embodiments of the invention

FIG. 25 is a schematic structural view of a 50kg/m rail and an 80R rail in some embodiments of the invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 9 to fig. 25 is:

10 special-shaped steel rails; 11 a first connection section; 12 a transition section; 13 a second connection section; 20 splice holders; 21 a first clamp plate; 22 a second splint; 201 an upper inclined plane; 202 mounting surface; 203 lower inclined plane; 204 circular holes; 205 waist holes; 31 a bolt; 32 nuts; 33 a flat washer; 40 a first profiled splint; 41 a first connection portion; 42 a second connecting portion; 43 a first transition portion; 44 a first ramp surface; 50 second special-shaped splints; 51 a third connecting portion; 52 a fourth connection portion; 53 a second transition; 54 a second ramp surface; 60 bolt holes; 101A rail head; 101B railhead; 101C railhead; 101D railhead; 101E railhead; 102A rail web; 102B rail waist; 102C rail web; 102E rail web; 103A rail bottom; 103B rail bottom; 103C rail bottom; 103E rail bottom; 104 through holes; 100 special-shaped joints; 20050 kg/m rail; 30080R Steel Rail.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The method of joining a 50kg/m rail to an 80R rail according to some embodiments of the invention is described below with reference to fig. 1 to 25.

Some embodiments of the present application provide a method of joining a 50kg/m rail to an 80R rail.