JPH10227001A - Device for preventing buckling of rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect and disconnect a buckling preventing device by locating a bucking prevention plate under a center part of a track between cross ties, and fitting it to the cross ties through upper fixing members and lower fixing members. SOLUTION: At the time of fitting a buckling preventing device, after fitting an upper fixing member 12 and a lower fixing member 13 to a buckling preventing plate, both the fixing members 12, 13 are connected to each other by a connecting bolt 21. The buckling preventing device is inserted between the cross ties 14 around which the ballasts are removed, the cross ties 14 are clamped between the fixing members 12, 13 and the member 13 is fixed to the plate 11 by increased fastening of a nut 31. Next, the buckling preventing device is fixed to the cross ties 14 by increased fastening of the nut 30, and thereafter, ballast is filled so as to embed the buckling preventing plate. At the time of removing the buckling preventing plate, the nut 30 is removed, and bolts 23 which fixes the member 13 is pulled out, and the plate 11 is pulled upward for drawing with the member 12, and thereafter, the member 13 is taken out from under the cross tie 14. With this structure, since the buckling preventing plate can be removed by eliminating a little quantity of ballast, generation of looseness of the ballast can be prevented, and the buckling preventing plate can be recycled so as to lower the cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a rail buckling prevention device, in particular, a new ballast after a track bed replacement operation is compacted by the load vibration of a passing train, and a stable ballast resistance is obtained stably. The present invention relates to a rail buckling prevention device which is attached to a sleeper until it is removed.

[0002]

2. Description of the Related Art A conventional rail buckling prevention device is provided to prevent a rail from bulging outside a curve and buckling due to a rise in temperature mainly in a sharp curve section of a track. Various buckling prevention devices have been developed. For example, as shown in FIG.
1 and a pair of fixing members 3 for fixing the buckling prevention plate 2 to the sleepers 1, 1.
3, a fixing bolt 4.4 for attaching the fixing members 3 to the buckling prevention plate 2, and a connection bolt 5 for connecting the pair of fixing members 3 to each other. At both ends, contact surfaces 6, 6 that contact the lower surfaces of the sleepers 1, 1 are formed to extend in opposite directions, respectively, and the middle of the upper edge of the buckling prevention plate 2 is extended upward, and both ends of the upper edge are formed. Is formed with a fixing member relative surface which is bent in a direction opposite to the contact surfaces 6 and 6, a bolt hole is formed in the fixing member relative surface, and a sleeper is provided in the fixing members 3 and 3. Upper contact surfaces 7, 7 which contact the upper surfaces of the upper and lower surfaces 1, 7;
The buckling prevention device facing surfaces 9, 9, which extend horizontally from the lower ends of the side surface contact surfaces 8, 8 toward the opposing fixing member 3 and obliquely to the installation direction of the crossties, and their ends overlap each other, are formed. The buckling prevention plate 2 is provided on the buckling prevention device relative surfaces 9 and 9.
The bolt holes 10, 10, 10, 10 are drilled at positions corresponding to the bolt holes drilled at the center and the overlapping positions, and the centers of the bolt holes 10, 10, 10, 10 are drilled on the same line. Buckling prevention devices (see Japanese Patent Application No. 7-262572) have been developed.

[0003]

However, the conventional buckling prevention device only needs to be installed for that purpose, and at present, the convenience of removal is not considered. That is, there is a problem that the ballast ballast must be removed before the removal work is performed. Therefore, even if it is a buckling prevention device that is compacted by the load and vibration of the train through which the new ballast passes after the ballast replacement work, and is stably mounted on the sleepers until sufficient ballast resistance is obtained, They remain installed even after achieving their objectives. This is because, when removing the ballast, the ballast must be removed as described above, so that sufficient ballast resistance may not be obtained.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a buckling prevention device which can be easily removed so that the ballast does not become loose and can be reused at another roadbed replacement site. is there.

[0005]

Therefore, according to the present invention, there is provided a buckling prevention plate provided below a center of a track between adjacent sleepers, a pair of upper fixing members for fixing the buckling prevention plate to the crossties, and a pair of upper fixing members. Lower fixing member, and upper fixing member on the buckling prevention plate,
It consists of a mounting bolt for attaching the lower fixing member, and a connecting bolt for connecting the upper fixing member and the lower fixing member, and a long hole-shaped bolt insertion hole is drilled on the upper end of the buckling prevention plate and on the left and right of the intermediate portion. The upper fixing member is formed on one side of the lower horizontal surface, a vertical portion abutting on the side surface of the sleeper, a vertical portion abutting on a side surface of the sleeper, a lower horizontal surface extending in a direction opposite to the upper horizontal surface from a lower end of the vertical portion. Buckling prevention plate mounting surface, the lower horizontal surface and the buckling prevention plate mounting surface is provided with a bolt insertion hole, and the upper edge of the buckling prevention plate mounting surface at the upper edge of the buckling prevention plate mounting surface The engaging portion to be engaged is formed, and the lower fixing member is formed by bending a rectangular flat steel obliquely at a right angle, one of which is a buckling prevention plate abutting surface, and the other is the other. The sleeper abutment surface should be in contact with the underside of the sleeper. By bolt insertion holes for inserting the bolts and the connecting bolt provides a buckling preventing apparatus rails are bored, in which so as to achieve the intended purpose.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. Reference numeral 11 denotes a buckling prevention plate which is a main body of the buckling prevention device. The buckling prevention plate 11 includes a pair of upper fixing members 12, 12 and a pair of lower fixing members 13, 13.
Thus, the sleepers 14 are installed below the center of the track between the adjacent sleepers 14, 14. Elongated bolt insertion holes 15, 15 for attaching the upper fixing members 12, 12 are formed on the left and right of the upper end of the buckling prevention plate 11, respectively. Has a lower fixing member 13,
13 for mounting bolts 13
Are drilled.

The upper fixing member 12 is composed of an upper horizontal surface 17 abutting on the upper surface of the sleeper 14 and a vertical portion 1 abutting on the side surface of the sleeper.
8, a lower horizontal surface 19 extending from the lower end of the vertical portion 18 in the direction opposite to the upper horizontal surface 17, and a buckling prevention plate mounting surface 20 formed on one side of the lower horizontal surface 19. A bolt insertion hole 22 through which a connection bolt 21 for connecting the upper fixing member 12 and the lower fixing member 13 is inserted is formed in the lower horizontal plane 19, and the buckling prevention plate 11 is attached to the buckling prevention plate mounting surface 20. A bolt insertion hole 24 through which the mounting bolt 23 is inserted is formed, and an engagement portion 25 that engages with the upper edge of the buckling prevention plate 11 is formed at the upper end of the buckling prevention plate mounting surface 20.

The lower fixing member 13 is formed by bending a rectangular flat steel obliquely at a right angle to the oblique direction. When one of the lower fixing members 13 is used as the buckling prevention plate contact surface 26, the other contacts the lower surface of the sleeper 14. A sleeper contact surface 27 is provided. Bolt insertion holes 28, 28 for inserting the connecting bolts 21 are formed nearer to the narrow side than the centers of the respective contact surfaces 26, 27, and bolts for inserting the mounting bolts 23 near the wide end. Insertion holes 29, 29 are formed. The bolt insertion holes 29, 29 have different distances L ₁ , L ₂ from the lower edge on the contact surfaces 24 and 25 side so as to be able to cope with the change in the thickness and width of the sleeper 14. In the figure, reference numeral 30 denotes a nut screwed to the connection bolt 21, and 31 denotes a nut screwed to the mounting bolt 23.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to attach the buckling prevention device of the above embodiment to a sleeper 14, first, the lower fixing member 1 is set in accordance with the thickness and width of the sleeper 14.
3, the contact surfaces 26 and 27 are set, the lower fixing member 13 is attached to the buckling prevention plate 11, and the upper fixing plate 12 is attached to the buckling prevention plate 11. Next, the connecting bolt 21 is vertically inserted from below the lower fixing member 13, and the nut 30 is screwed to connect the lower fixing member 13 and the upper fixing member 12. Next, the buckling prevention device is inserted between the sleepers 14 and 14 from which the ballast (not shown) has been removed in advance, and rotated to rotate the upper fixing member 12 and the lower fixing member 1.
3 is engaged with the sleepers 14, 14, the positions of the upper fixing member 12 and the lower fixing member 13 are adjusted in accordance with the interval between the sleepers 14, 14, and the nuts 31 are tightened.
2 and 13 are fixed to the buckling prevention plate 11 and nuts 3
The buckling prevention device is fixed to the sleeper 11 by tightening the number 0.
After that, the ballast ballast is filled and the buckling prevention plate 11 is embedded.

At the time of removal, first, the nut 30 of the connecting bolt 21 is removed, the connecting bolt 21 is made free, and the mounting bolt 23 for fixing the lower fixing member 13 is removed.
And remove it from the buckling prevention plate 11. Then, after the buckling prevention plate 11 is pulled up together with the upper fixing member 12 and pulled out, the lower fixing member 13 is pulled out horizontally from under the sleeper 14 and taken out.

[0011]

As described above, according to the present invention, the buckling prevention device is installed below the center of the track between adjacent sleepers, and the buckling prevention plate is fixed to the sleeper. A pair of upper fixing members and a pair of lower fixing members, and an upper fixing member, a mounting bolt for attaching the lower fixing member to the buckling prevention plate,
Consisting of an upper fixing member and a connecting bolt for connecting the lower fixing member, a long hole-shaped bolt insertion hole is formed on the upper end of the buckling prevention plate and on the left and right of the intermediate portion, and the upper fixing member is provided on the upper surface of the sleeper. An upper horizontal surface abutting, a vertical portion abutting the side of the sleeper, a lower horizontal surface extending in a direction opposite to the upper horizontal surface from a lower end of the vertical portion, and a buckling prevention plate mounting surface formed on one side of the lower horizontal surface. A bolt insertion hole is formed in the lower horizontal surface and the buckling prevention plate mounting surface, and an engaging portion that engages with the upper edge of the buckling prevention plate is formed at the upper end of the buckling prevention plate mounting surface, and the lower portion is fixed. The member is formed by bending a rectangular flat steel obliquely at a right angle and forming one of them as a buckling prevention plate contact surface and the other as a sleeper contact surface that contacts the lower surface of the sleeper. Bolt insertion holes for mounting bolts and connecting bolts are formed on the contact surface. , Is then upon removal of the seat bending prevention device, since the track bed ballast around the buckling preventing plate can be carried out only by removing a bit, never loose occurs 該道 bed ballast. Therefore, after removing the buckling prevention device installed on the track where sufficient track resistance has been obtained stably,
Because the buckling prevention device can be used at another roadbed replacement site,
The economic efficiency was greatly improved.

Further, according to the present invention, the engaging portion for engaging with the upper edge of the buckling prevention plate is formed at the upper end of the buckling prevention plate mounting surface of the upper fixing member. In addition, since the rotation of the fixing member is prevented and the tightening force of the connecting bolt is transmitted to the sleeper integrally with the buckling prevention plate, the upper beam which was conventionally required as an independent member could be omitted.

Further, according to the present invention, the bolt insertion hole formed in the buckling prevention plate has a long hole shape, and the height position of the bolt insertion hole for the mounting bolt drilled on the wide side of the lower fixing member. Is changed between one side and the other side, so that there is an effect that it is possible to cope with a difference in conditions at the exchange site with respect to adjacent sleeper intervals and sleeper thickness width.

[Brief description of the drawings]

FIG. 1 is a perspective view of a buckling prevention device according to the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is an exploded perspective view of the same.

FIG. 4 is an enlarged perspective view of a lower fixing member.

FIG. 5 is a perspective view showing a conventional buckling prevention device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Buckling prevention plate 12 Upper fixing member 13 Lower fixing member 14 Sleeper 15 Bolt insertion hole 16 Bolt insertion hole 21 Connection bolt 23 Mounting bolt 25 Engagement part 28 Bolt insertion hole 29 Bolt insertion hole

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Kinya Sato, Inventor 1178 Kuragano-cho, Takasaki-shi, Gunma E-203 (72) Inventor Takaharu Nagato 2-8-8 Hikaricho, Kokubunji-shi, Tokyo 38 Inside the Railway Research Institute ( 72) Inventor Hideaki Yanagawa 2-8-3 Hikaricho, Kokubunji-shi, Tokyo 38 Inside the Railway Research Institute (72) Inventor Takeji Fukuda 7-26-11 Onodai, Sagamihara City, Kanagawa Prefecture (72) Inventor Keisuke Kirikiki 525 Higashi Taiseicho, Omiya City, Saitama Prefecture

Claims (2)

[Claims] An anti-buckling plate installed below the center of a track between adjacent sleepers, a pair of upper fixing members and a pair of lower fixing members for fixing the anti-buckling plate to the crossties; Mounting bolts for attaching the upper fixing member and the lower fixing member to the plate,
It is composed of an upper fixing member and a connecting bolt for connecting the lower fixing member.
A long hole-shaped bolt insertion hole is drilled, and the upper fixing member has an upper horizontal surface abutting on the upper surface of the sleeper, a vertical portion abutting on the side surface of the sleeper, and a lower horizontal surface extending from a lower end of the vertical portion in a direction opposite to the upper horizontal surface. And a buckling prevention plate mounting surface formed on one side of the lower horizontal surface. A bolt insertion hole is formed in the lower horizontal surface and the buckling prevention plate mounting surface, and an upper end of the buckling prevention plate mounting surface. Has an engaging portion that engages with the upper edge of the buckling prevention plate, and the lower fixing member is formed by bending a rectangular flat steel obliquely at a right angle. It is characterized in that a buckling prevention plate abutment surface and the other is a sleeper abutment surface that abuts on a lower surface of the sleeper, and a bolt insertion hole for inserting a mounting bolt and a connection bolt is formed in each abutment surface. Rail buckling prevention device. 2. The height position of a bolt insertion hole for a mounting bolt drilled on the wide side of the lower fixing member is changed between one surface and the other surface. Rail buckling prevention device.