JP4772005B2 - Assembly method of joint structure of railroad turnout rail - Google Patents

Description

  The present invention relates to a rail for railroads, and more particularly to a joint between a rail and a connection rail located at the left and right ends of each of the various rails in the branching unit.

  A conventional example and a joint position example of the present invention will be described with reference to FIG. Symbol S indicates a range of the branching device, and various rails 1, specifically, a basic rail 1a, a tongrel 1b, a lead rail 1c, a main rail 1d, and a crossing rail 1e are disposed in the range. As shown, the positions a to g are the joint positions where the various rails 1 are connected to each other.

  Various rails 1, specifically, basic rails 1 a, main rails 1 d, and crossing rails 1 e are connected to the connecting rails 2 at joint positions hm.

  Conventionally, at the joint portion, the rails are connected to each other by a well-known joint plate or field welding.

  In the case of connection by the joint plate, the impact of the wheel passing through the joint is generated, noise is generated, and the rail may be damaged.

  In addition, when connecting by on-site welding, it is necessary to heat the rail to a high temperature for welding, which requires a skilled person, and it is difficult to inherit this welding technique.

Furthermore, in conventional field welding, rails are cut at right angles and welded. However, since the rails are heated at a high temperature, there is a material difference between the heated part and the non-heated part, and the heat generated in the rail welded part. The affected part is worn due to the passage of the wheel, and the wheel passing through this part is impacted, noise is generated, and there is a possibility that the rail crack extends from an inherent so-called welding defect.
None.

The present invention reduces the above-mentioned impact and noise, and does not require a skilled person, so that the rail can be connected easily and firmly, and even if a crack of the rail occurs, its extension can be prevented. most of the seam structure way prepared and stored in a factory or the like, in the case of newly established splitter is transported, installed, and an object thereof is to ensure sufficient only connection to the connection rail.

The means of the present invention includes the first, second and third adhesives made of thermosetting resin, the rails facing each other, the insertion rails, the first and second attachment plates at all joints in the branching device. Bolts and nuts are prepared, and the opposing rail ends are cut obliquely widening as they go to one side, and the insertion rail is shaped to be inserted between the ends generated by the cutting. Next, the first attachment plate is brought into contact with the insertion rail via the first adhesive, and then the insertion rail is fitted between the ends of the opposed rails, and the first attachment plate is inserted. The left and right remainders of the contact plate are brought into contact with the opposite rail abdomen via a second thermosetting resin adhesive, and the second attachment plate is thermoset on the rail abdomen opposite to the rail abdomen. Abutting via a third adhesive made of a conductive resin, and the second attachment , The third adhesive, the opposing rails, the second adhesive, the insertion rail, the first adhesive, and the first attachment plate are integrated by bolting, and the entire joint is heated to the first, The rails, the insertion rails and the attachment plates are bonded with the second and third adhesives, and the first, second and third adhesives are cured, and then the entire branching device is transported to the laying site. In addition, in the field, each connection rail end is cut obliquely as it goes to one side, and it is located at the joint with each connection rail in the branching unit, and is already cut obliquely as it goes to one side. The insertion rails are inserted between the opposed basic rail ends, the main rail ends, and the crossing rail ends, and the left and right remaining portions of the first attachment plate are made of a second thermosetting resin. Abutting against the opposite rail abdomen via adhesive, Further, a second attachment plate is brought into contact with the rail abdomen on the opposite side of the rail abdomen via a third adhesive made of a thermosetting resin, and the second attachment plate, the third adhesive, The opposing rails, the second adhesive, the insertion rail, the first adhesive, and the first attachment plate are integrated by bolting, and the entire joint is heated to provide the first, second, and third adhesions. The rails, the insertion rails, and the attachment plates are bonded together with a material, and the first, second, and third adhesive materials are cured.

According to the method of the present invention, when a branching device is newly installed, it is sufficient to carry, install, and connect the connecting rail with the joint structure having the effects described later, and the field work can be performed very easily.

Incidentally, in the joint structure, since the rails are obliquely cut and connected, the impact generated when the wheels pass can be reduced and the generation of noise can be prevented.

  In addition to the fastening with bolts, adhesion and curing with a thermosetting resin are added in addition to the fastening with bolts, so that the rails can be firmly connected to each other. Moreover, compared to on-site welding, it has an adhesive plate, is adhesively hardened with an adhesive made of thermosetting resin, and is bolted, and its rail connection force becomes extremely strong and acts by passing the wheel. Since the stress to be distributed is dispersed by the adhesive and relaxed to act on the rail, even if the rail is cracked, it can be prevented from extending.

  Furthermore, since the rails are not welded, the rails can be easily and quickly connected without requiring an expert. Heating with an adhesive made of a thermosetting resin can be performed by a gas burner, electric heating, or the like, and can be made easier than the difficulty of welding technology.

  The joint m between the main rail 1d and the connection rail 2 shown in FIG. 5 will be described in detail as an example.

  Further, the same means is used for any of a plurality of seam positions including all seam positions from the first seam position.

  The members of the present invention will be described with reference to FIG. Form. The shape of the cut surface is the same as adhesives 6d and 6d described later.

  On the other hand, both ends of the rail portion 32, which is a short rail, are cut obliquely so as to expand outward, and the insertion rail 3 is formed in a substantially trapezoidal shape with a letter “C” in plan view. The size is set such that it can be inserted between the opposing end portions 10 and 20 and more precisely can be loosely fitted.

  As the first attachment plate 5a, about three times longer than the insertion rail 3, and in the recess formed between the abdomen 21, 30, 11 of the rails 2, 3, 1 and the rail head and bottom shown in FIG. It is formed by a steel plate that can be inserted and, more precisely, loosely fitted.

  Similarly, the second attachment plate 5b on the opposite side is formed.

  Further, three kinds of adhesives 6a, 6b, 6b, 6c made of thermosetting resin, specifically, four prepregs are formed in an elongated shape. The first adhesive 6a is formed to the length of the abdomen 30 of the insertion rail, the second adhesive 6b is formed to the length of the left and right remaining portions of the attachment plate 5a, and the third adhesive 6c is formed. Is formed to the length of the second attachment plate 5b.

  Further, two fourth adhesive members 6d and 6d made of thermosetting resin (specifically, prepreg) are formed in a thin shape and the same as the end surfaces of the oblique end portions 10 and 20, respectively.

  In the figure, reference numeral 9 is a bolt loose insertion hole formed in each member, and reference numerals 7, 8 ', 8 are bolts, washers and nuts in this order.

  The abutting plate 5a is brought into contact with the abdomen of the insertion rail 3 via an adhesive 6a, and the insertion rail 3 is placed between various rails 1 in the branching device, for example, between the main rail 1d and the end 4 of the connection rail 2, and the first rail. The adjoining plate 5a is fitted into the abdomen of each of the opposing rails 1d and 2 via second and fourth adhesives 6b, 6b, 6d and 6d made of thermosetting resin. This is because the fourth adhesive 6d further strengthens the entire joint.

  The second attachment plate 5b is fitted into the abdominal portions 12 and 22 on the opposite side of the rails 1d and 2 via the third thermosetting resin adhesive 6c.

  The second attachment plate 5b, the third adhesive 6c, the abdomen of each rail 1d, 2, the second and first adhesives 6b, 6b, 6a, the insertion rail 3 and the first attachment plate 5a The bolts 7, 7, 7 ..., washers 8 ', 8', 8 ..., nuts 8, 8, 8 ... are tightened through the bolt loose insertion holes 9, 9, 9 ....

  After these mountings are completed, all the members, that is, the main rail 1d, the connection rail 2, the insertion rail 3, the adhesives 6a to 6d, and the first and second attachment plates 5a and 5b are heated by a gas burner or electric heating. Then, the adhesive materials 6a to 6d are cured and integrated.

  The main rail 1d, the connection rail 2 and the insertion rail 3 are fixed to the sleeper 42 via the existing floor plate 40 and washer 41.

  For example, if it is necessary to replace the rail 1 and connect a new joint for some reason, such as damage to an existing rail, leave only the connection rail 2 shown in FIG. The rail 1, the insertion rail 3, the first and second attachment plates 5a, 5b, the first to fourth adhesive materials 6a, 6b, 6b, 6c, 6d, 6d, and bolts in the above-described branching device 7. The washer 8 'and the nut 8 are transported to the site, and the damaged existing rail, for example, in the branching device is replaced with the rail 1 having the new end 10 cut obliquely, and assembled in the following order.

(1) The existing rail, for example, the connecting rail 2 is cut obliquely so as to expand toward one side.

(2) The insertion rail 3 that is in contact with the first attachment plate 5a via the first adhesive 6a is inserted between the end portions 4 via the fourth adhesive 6d and 6d and the second The first attachment plate 5a is inserted into the abdomen of the opposing rails 1 and 2 through the adhesives 6b and 6b.

(3) The second attachment plate 5b is inserted into the abdominal portions 12 and 22 on the opposite side of the rails 1 and 2 via the third adhesive 6c.

(4) Second attachment plate 5b, third adhesive 6c, abdomen of each rail 1 and 2, second and first adhesives 6b, 6b, 6a, insertion rail 3 and first attachment plate Each bolt 7, 7, 7... Is inserted into each bolt loose insertion hole 9, 9, 9... 5 a and each nut 8, 8 ′ is inserted through each washer 8 ′ 8 ′, 8 ′. , 8 ... Tighten.

(5) The members are heated and bonded by a gas burner, electric heating or the like, and the adhesives 6a, 6b, 6b, 6c, 6d and 6d are cured.

  In the above description, the connection rail 2 is cut obliquely in (1). However, if the damaged rail, for example, the cracked rail is the connection rail 2, the new connection rail 2 that has already been cut obliquely will be used in the field. It may be exchanged and the existing rail 1 may be cut diagonally extending along one side, and both the rails 1, 1 in both opposing branching units or the rails 1 and 2 are damaged if both are damaged. There is no need to replace the rail with a new one and cut the rail diagonally on site. The rail 1, 1 or rail 1, 2 may be replaced by the damaged one, depending on the situation.

  Also, in the above description, the order of (2) and (3) may be reversed, depending on the situation, the order of (4) and (5) may be reversed, and this is also dependent on the situation. .

  Further, the bolt insertion holes 9, 9, 9... Are not drilled in advance, and after the completion of the above (1), (2), and (3), the respective parts are kept in contact with each other or are heat-cured. It may be penetrated at a later time, and then bolts 7 and nuts 8 may be tightened.

  Next, when newly installing the entire branching device, the parts having the above-described configuration are placed in advance on all the facing seams a, b, c, d, e, f, and g in the branching device shown in FIG. Connections may be made in the order described above, and detailed description thereof will be omitted because it is redundant.

  Then, the entire branching device is transported to the laying site, installed, and further, the end 20 of each connection rail 2 is cut obliquely so as to extend to one side at the site, and the joint h with each connection rail 2 in the branch device. , I, j, k, l, m, the basic rails 1a, 1a, the main rail 1d, the crossing rail 1e, the main rail 1d and the connecting rails 2, 2,. . Since these orders and structures overlap with the above description, detailed description thereof will be omitted.

  In addition, when installing a new branching device, it is not necessary to assemble a plurality of joints a to m in advance due to legal restrictions on the carrying capacity and load length / weight of the carrying vehicle. Also good.

  Also, when installing a new branching device or when cutting both of the pair of rails 1, 1 or 1, 2 facing each other at an angle as described above (for example, the opposing rails are not damaged, what? For this reason, when switching to the structure of the present invention, a rail portion cut off by cutting may be used as the insertion rail 3.

It is a disassembled perspective view of each member used by this invention. It is a top view which shows an assembly state same as the above. It is a front view same as the above. It is a side view same as the above. It is explanatory drawing of the position which implements this invention.

DESCRIPTION OF SYMBOLS 1 Rail in a branch device 2 Connection rail 3 Insertion rail 4 Between end parts 5a 1st attachment plate 5b 2nd attachment plate 6a 1st adhesive material 6b 2nd adhesive material 6c 3rd adhesive material 7 Bolt DESCRIPTION OF SYMBOLS 10 End part 11 Abdominal part 12 Abdominal part 20 End part 21 Abdominal part 22 Abdominal part 30 Abdominal part 31 Abdominal part

Claims (1)

Prepare in advance each opposing rail, insertion rail, first and second attachment plates, first, second and third adhesives made of thermosetting resin, bolts and nuts at all joints in the branching device In addition, the opposite end portions of the rails are cut obliquely so as to go to one side, and the insertion rail is shaped to be inserted between the end portions generated by the cutting, and then the first The first attachment plate is brought into contact with the insertion rail via the adhesive, and then the insertion rail is fitted between the opposite end portions of the rail and the left and right remaining portions of the first attachment plate are attached. A second abutting plate is attached to the rail abdomen opposite to the rail abdomen opposite to each other through the thermosetting resin second adhesive, and a third attachment plate is attached to the rail abdomen opposite to the rail abdomen. The second contact plate and the third adhesive material The opposing rails, the second adhesive, the insertion rail, the first adhesive, and the first attachment plate are integrated by bolting, and the entire joint is heated to provide the first, second, and third adhesions. The rails, the insertion rails, and the attachment plates are bonded together with a material, and the first, second, and third adhesive materials are cured, and then the entire branching device is transported to the laying site and installed. In each of the connecting rails, the ends of the connecting rails are cut obliquely so as to extend to one side, and are located at the joints with the connecting rails of the branching unit, and have already been cut diagonally as they go to one side. The insertion rails are inserted between the first rail, the main rail end, and the crossing rail end, and the left and right remaining portions of the first attachment plate are opposed to each other with a second adhesive made of a thermosetting resin. Abutting against each other's abdomen, and further said rail The second attachment plate is brought into contact with the abdominal portion of the rail on the opposite side of the portion via a third adhesive made of thermosetting resin, and the second attachment plate, the third adhesive, and the opposing rails The second adhesive material, the insertion rail, the first adhesive material, and the first attachment plate are integrated by bolting, and the entire seam is heated and the first, second and third adhesive materials are used to A method for assembling a joint structure of a railroad branch rail, wherein the rail, the insertion rail, and each attachment plate are bonded together and the first, second, and third adhesive materials are cured.

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