JPH0674604U - Rail support device - Google Patents

Abstract

(57) [Abstract] [Purpose] A lightweight and simple structure that can be easily assembled, and that aims to improve the efficiency of the work for laying concrete track tracks. [Structure] The rail support device includes a rail support base 11 in which a groove 12 for receiving a rail base 4A is formed. The rail support base 11 includes support screws 14 on both sides in the width direction of the groove 12.
15 are respectively screwed so as to be vertically adjustable. Lower ends 14C and 15C of the support screws 14 and 15 are formed into curved surfaces. The rail retainers 16 and 17 are removably inserted into the support screws 14 and 15, and the rail retainers 16 and 17 attach the rail 4 placed in the groove 12 to the rail support base 11 by screw fasteners 18 and 19. Removably fasten. Support screw 1
A backing plate 21 is provided below 4 and 15.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rail support device which is used when laying a concrete track of a railroad vehicle and holds the track at a predetermined height according to the track before concrete laying.

[0002]

[Prior art]

 Conventionally, when laying a concrete track for railroad cars, the foundation concrete was exposed and the height difference was large before the concrete for the track was placed, so it was assembled on site before the concrete was placed for the track. A rail support device (jack) that holds the rail at a predetermined height is used. As shown in FIG. 7, the conventional rail support device 10 supports the assembled rail 2 at two points and lifts it up, and, as shown in FIG. 8, a wooden block is placed below the rail 4 between the sleepers 3. (Or concrete block) 5 is arranged, and a plurality of wooden wedges 6 are interposed between the wooden block 5 and the rail 4 so that the height of the railing 2 can be adjusted and maintained and the roadbed concrete 9 can be placed. ing.

The conventional rail support device 10 is configured by connecting two tie plate fittings (rail support bases) 112 each having a groove 111 for receiving the rail 4 with a tie plate connecting fitting 113. Bearing bolts 114 are inserted on the outside of each tie plate fitting 112 so that the rail 2 is supported at two points on the outside of the rails 4, 4. For this reason, the bottom surface of the groove 111 is formed so as to be inclined inward so that an average taper (1/40) α is secured in advance. The rail 4 is fixed to the tie plate fitting 112 with a large number of bolts. As shown in FIG. 8, the rail support device 10 adjusts the support bolt 114 to adjust the height difference between the track and the rail 2 before placing concrete, and the rail 2 is moved to a predetermined height. When it is held, it is fixed while adjusting the inside and outside of the gauge by the expansion and contraction gauge body 7 and the rail supporter 8, and the roadbed concrete 9 is placed and the concrete roadbed track is laid. The rail support device 10 is removed together with the wooden block 5, the wooden wedge 6, the telescopic gauge body 7 and the rail supporter 8 after the concrete 9 is cured.

[0004]

[Problems to be solved by the device]

 The conventional rail support device described above has a problem in that the more it is used in order to secure the laying accuracy, the more the members of the device itself have to be assembled, and the weight of the device itself increases, which makes it difficult to carry and handle. there were. Further, not only the time required for assembly is required, but since many bolts are used for mounting the rail, it takes time to finely adjust the tightening points, resulting in a decrease in work efficiency.

The present invention has been made in order to eliminate the above-mentioned drawbacks, and it is possible to easily adjust the height with a lighter weight and simple structure to ensure the laying accuracy, and to improve the efficiency of the laying work of the concrete track track. (EN) A rail support device that can be measured.

[0006]

[Means for Solving the Problems]

 The rail supporting device according to the present invention has a rail supporting base formed with a groove for receiving a rail base, and a lower end formed into a curved surface by being screwed on both sides in the width direction of the groove to adjust the rail vertically. Possible support screws, rail retainers that are removably inserted into these support screws, and these rail retainers are pressed into contact with the rails placed in the above grooves so that the rails can be attached to and removed from the rail support base. It is provided with a screw fastener for holding.

[0007]

[Action]

 In the rail support device according to the above invention, the rail is placed in the groove of the rail support base, and the rail is detachably tightened to the rail support base by the screw tightening tool via the rail retainer, and the support screw is adjusted. By adjusting the height difference between the rail and the track at multiple points for each rail, the rail can be positioned on the inner and outer sides of the rail according to the height of the track in the case of rail rails with long sleepers. Therefore, the track is stable, the positioning accuracy is improved, and the barb (gradient) can be finely adjusted. Also, in the case of rail rails with short sleepers, positioning and fine adjustment of the barb can be performed for each rail.

[0008]

【Example】

 Hereinafter, the present invention will be described with reference to illustrated embodiments. FIG. 1 is a front view showing a rail bearing device according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a plan view for laying a concrete track using the rail bearing device of FIG. Fig. 4 is an explanatory diagram before placing the concrete for the roadbed, and Fig. 4 is an explanatory diagram after placing the concrete for the roadbed in Fig. 3. As shown in FIGS. 1 and 2, the rail support device 20 is configured by screwing support screws 14 and 15 on a rail support 11 as a main body, respectively. The tie plate-shaped rail support 11 has a horizontal groove 12 formed in the center for receiving the rail base 4A of the rail 4. The rail support 11 has screw holes 13A and 13B formed on both sides of the groove 12 symmetrically with respect to the center line C1 of the groove 12. Further, the rail support 11 has step portions 11A and 11B formed on both sides of the upper surface in the width direction.

Support screws 14 and 15 are screwed into the screw holes 13A and 13B so as to be vertically adjustable. As shown in FIG. 1, the support screws 14 and 15 are provided with threaded portions 14A and 15A on the upper side and reduced diameter portions 14B and 15B on the lower side which are continuous with the threaded portions 14A and 15A and gradually reduce in diameter. The lower end surfaces 14C and 15C are formed into curved surfaces. Further, the head portions 14D and 15D of the support screws 14 and 15 are formed in a prismatic shape so as to fit within the outer diameters of the threaded portions 14A and 15A. The heads 14D and 15D of the support screws 14 and 15 are first adjusted by a tool (not shown) to ensure the levelness of the rail support 11. After ensuring the levelness of the rail support 11, the support screw 15 inside the rail 4 is finely adjusted so as to hold a desired small turning. At this time, even if the rails are framed by long sleepers, an extremely small angle gradient is required for the barbs, so the weight of the rail 4 itself allows the support screw 15 to be finely adjusted. By doing so, a desired rebate can be obtained. Below the supporting screws 14 and 15, a receiving plate 21 is previously arranged on the foundation concrete, and the supporting screws 14 and 15 are placed on these receiving plates 21. These support plates 21 must be supported by the supporting screws 14 and 15 when the work vehicle for placing concrete is running on the track when laying the concrete trackbed. It is provided in order to disperse such a load and prevent the support screws 14 and 15 from biting into the base concrete, and to maintain the accuracy of laying the rail. Further, since the lower ends 14C and 15C formed on the curved surfaces of the support screws 14 and 15 come into contact with each other at one point, the support screws 14 and 15 can be easily adjusted. These receiving plates 21 are buried in the base concrete at predetermined positions by the cast concrete 9.

Further, in the rail support device 20, the square washers 16 and 17 as rail restrainers are removably inserted into the support screws 14 and 15, and further the nuts 18 and 19 as screw fasteners are inserted. The support screws 14 and 15 are screwed in from the head portions 14D and 15D sides. The square washers 16 and 17 are formed such that the rail holding portions 16A and 17A on the groove 12 side are inclined according to the inclination of the rail base 4A, and these rail holding portions 16A and 17A are mounted on the groove 12 respectively. The rail 4 can be brought into contact with the rail base 4A. Further, the sides of the square washers 16 and 17 opposite to the rail restraining portions 16A and 17A can come into contact with the step portions 11A and 11B of the rail support 11 respectively. The square washers 16 and 17 are inserted from above the support screws 14 and 15 when the rail 4 is placed in the groove 12 of the rail support 11, and are screwed by the nuts 18 and 19 to the rail base 4A. The rail 4 is pressed and fixed to the rail support 11.

Next, the operation of the rail support device 20 according to the above-described embodiment will be described based on the process of laying a concrete trackbed track. When laying a concrete track, first bring in the rails 4 and long sleepers to the planned track laying site where the basic concrete is exposed, and assemble the rail. When the rail is assembled, the backing plate 21 is placed at a predetermined position below the rail 4 between the long sleepers. The rail supporting device 20 has a structure in which grease is applied to the lower sides of the support screws 14 and 15 in advance and the support screws 14 and 15 are screwed into the rail support 11 respectively, and then the support screws 14 and 15 are The end faces 14C and 15C are brought into contact with the receiving plate 21 placed on the basic concrete. Grease is applied according to the part to be embedded in the roadbed concrete. Next, the square washers 16 and 17 are inserted into the supporting screws 14 and 15 from above, and the opposite sides of the rail restraining portions 16A and 17A of the square washers 16 and 17 are brought into contact with the stepped portions 11A and 11B, respectively. The rail retainers 16A and 17A are applied to the rail base 4A. Then, the nuts 18 and 19 are screwed into the heads 14D and 15D of the support screws 14 and 15 to fasten the rail holding portions 16A and 17A of the square washers 16 and 17 to the rail base 4A.

Next, the heads 14D and 15D of the support screws 14 and 15 are turned to raise the rail support base 11 and lift the rail to a height required for concrete pouring of the roadbed to maintain the horizontalness of the rail ( (See FIG. 3). After that, the support screw 15 inside the rail 4 is adjusted to secure a desired small barb. When the return of the rail 4 is determined, an expansion / contraction gauge body 7 is arranged between the rail support 11 and a rail supporter 8 is interposed between the rail support 11 and the side wall with a wooden wedge 6 between the rail support 11 and the side wall in order to secure the laying accuracy. Then fix the rail. When the rail is fixed, the floor concrete 9 is placed, and the stretch gauge body 7 and rail supporter 8 after curing the floor concrete 9 are removed (see FIG. 4). Then, the nuts 18 and 19 and the square washers 16 and 17 are removed from the support screws 14 and 15 to release the constraint between the rail support 11 and the rail 4, and the support screws 14 and 15 are removed from the cast concrete. In this way, it is possible to improve the efficiency of railroad laying work with a simple configuration. Further, FIGS. 5 and 6 are explanatory views of before and after concrete pouring of the trackbed when laying a double track concrete trackbed by using the rail supporting device according to the above embodiment, respectively.

[0013]

[Effect of device]

 As described above, according to the present invention, it is possible to easily adjust the height and secure the laying accuracy with a lightweight and simple structure, and to improve the efficiency of the laying work of the concrete track track.

[Brief description of drawings]

FIG. 1 is a front view showing a rail support device according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is an explanatory diagram before laying a concrete bed when laying a concrete track using the rail support device of FIG. 1;

FIG. 4 is an explanatory view after pouring the roadbed concrete of FIG. 3.

FIG. 5 is an explanatory diagram before laying a roadbed concrete when laying a double-track concrete roadbed track using the rail support device of FIG. 1;

FIG. 6 is an explanatory diagram after pouring the roadbed concrete of FIG. 5.

FIG. 7 is a front view of a conventional rail support device.

FIG. 8 is an explanatory diagram before laying concrete on a concrete track when a concrete track track is laid using a conventional rail support device.

[Explanation of symbols]

 4 rails 4A rail base 11 rail support 12 groove 14 and 15 support screw 14C and 15C lower end face (support screw lower end) 16 and 17 square washer (rail retainer) 18 and 19 nut (screw fastener) 20 rail support device 21 Support plate

Claims (2)

[Scope of utility model registration request] 1. A rail support base in which a groove for receiving a rail base is formed, support screws which are respectively threaded on both sides in the width direction of the groove and whose lower ends are formed into curved surfaces, and which are adjustable in the vertical direction, and these supports. A rail retainer that is removably inserted into a screw, and a screw fastener that press-contacts the rail retainer with the rail placed in the groove and detachably holds the rail on the rail support. Rail support device characterized by 2. A rail support is supported by interposing a receiving plate between the support screw and the track bed.
The rail support device described in.