Long rail overturning prevention device for ballast track

Abstract

The utility model belongs to the technical field of railway ballast track pre-laying, and particularly relates to a ballast track long rail overturning preventing device. Comprising a supporting rod and a supporting head. One end of the supporting rod is used for being connected with the screw spike, the other end of the supporting rod is hinged to the supporting head, and a hinge shaft is parallel to the length direction of the long rail. The supporting rod is supported by the screw spikes and supports the long rail through the supporting head; the supporting rods are parallel to the sleeper where the screw spikes are located; the long rail overturning prevention device for the ballast track can prevent the long steel rail from overturning, guarantee the linear smoothness of the long steel rail and reduce the internal stress of the long steel rail; a tool rail buckle accessory can be used for fixing, and operation is convenient; the supporting head is a movable device, so that fine adjustment is facilitated; the structure is simple, operation is convenient, and structural parts are detachable.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway ballasted track pre-laying, and in particular relates to a ballasted track long rail overturning prevention device. Background Art

[0002] When the ballasted track is pre-laid, tool rails are used for laying. After laying, the ballast bed is supplemented with ballast and tamped by a large machine. When the ballast bed meets the operating conditions of the long rail vehicle, the long rail vehicle is used to unload the long rails (long steel rails). The unloaded long rails are placed at the ends of both sides of the sleepers. However, when placed on a curved line, the long rails may overturn, which is not in compliance with the design and specification requirements. In addition, if the long rails overturn, if the rail replacement operation is not performed for a long time, some parts of the long rails will be hard bent and cannot be restored, which will cause the rails to be sawed and waste the rail materials at the hard bends.

[0003] The main reasons for the overturning of long rails are: 1) The linear shape of long rails cannot be guaranteed in curved sections, and local stress may occur in the long rails. If the rail temperature changes too much, the stress will be aggravated, causing the long rails to overturn; 2) The influence of superelevation on the outside of the curve. If there is superelevation in the curved section, the entire long rail will be in a tilted state. If the designed superelevation is too large, the long rail placed at the end will be more likely to overturn in the first situation. Utility Model Content

[0004] The utility model is designed to solve the problem of overturning of long steel rails on a ballasted track in a curved section.

[0005] The utility model provides the following technical solution: a ballasted track long rail overturning prevention device, comprising a support rod and a support head; one end of the support rod is used to connect with a spiral spike, the other end of the support rod is hinged with the support head, and the hinge axis is parallel to the length direction of the long rail; the support rod is supported by the spiral spike and supports the long rail through the top of the support head; the support rod is parallel to the sleeper where the spiral spike is located.

[0006] Furthermore, one end of the support rod connected to the spiral spike is a transverse flat joint, on which a circular hole is opened, the aperture of the circular hole is adapted to the spiral spike, the circular hole of the support rod is sleeved on the spiral spike, the support rod is located between the flat washer and the nut on the spiral spike, and the nut locks and fixes the support rod.

[0007] Furthermore, one end of the support rod connected to the support head is a vertical flat joint, and a circular hole is opened on the vertical flat joint; one side of the support head is a long rail contact surface, and two hinged ears are provided on the side of the support head opposite to the long rail contact surface, the vertical flat joint of the support head extends between the two hinged ears, and a pin shaft is inserted into the vertical flat joint and the two hinged ears.

[0008] Furthermore, the support head is a steel block, and the long rail contact surface of the support head is covered with a rubber cushion layer.

[0009] Furthermore, the top of the support head is supported at the junction of the rail head and the rail waist of the long rail, and the line shape of the long rail contact surface of the support head is consistent with the rail waist of the long rail.

[0010] Furthermore, the support rod is a steel pipe, and both ends of the support rod are flattened to form a transverse flat joint and a vertical flat joint.

[0011] Compared with the prior art, the advantages of the present invention are:

[0012] The utility model provides a ballasted track long rail overturning prevention device, which can prevent the long rail from overturning and ensure that the long rail has a smooth linear shape and reduces its internal stress; it can be fixed with the help of tool rail buckle accessories, which is convenient for operation; the support head is a movable device, which is convenient for fine adjustment; it has a simple structure, is easy to operate, and the structural parts can be disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The schematic diagram of the arrangement of the device for preventing long rails from overturning on ballasted track is shown in FIG.

[0014] Figure 2 This is a schematic diagram of the installation of a ballasted track long rail overturning prevention device.

[0015] In the figure: 1-support rod; 2-support head; 3-screw spike; 4-long rail; 5-flat washer; 6-nut; 7-articulation ear; 8-articulation shaft; 9-tool rail. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] like Figure 1 , Figure 2 As shown: a device for preventing long rails from overturning on ballasted track, comprising a support rod 1 and a support head 2; one end of the support rod 1 is used to connect with a spiral spike 3, the spiral spike 3 is a spike for fixing a tool rail 9, the other end of the support rod 1 is hinged to the support head 2, and the hinge axis is parallel to the length direction of the long rail 4; the support rod 1 is supported by the spiral spike 3 and supports the long rail 4 through the support head 2; the support rod 1 is parallel to the sleeper where the spiral spike 3 is located.

[0018] One end of the support rod 1 connected to the spiral spike 3 is a transverse flat joint, on which a circular hole is opened, the aperture of the circular hole is adapted to the spiral spike 3, the circular hole of the support rod 1 is sleeved on the spiral spike 3, the support rod 1 is located between the flat washer 5 and the nut 6 on the spiral spike 3, and the nut 6 locks the support rod 1.

[0019] One end of the support rod 1 connected to the support head 2 is a vertical flat joint with a circular hole; one side of the support head 2 is a long rail contact surface, and two hinged ears 7 are arranged on the side of the support head 2 opposite to the long rail contact surface, the vertical flat joint of the support head 2 extends between the two hinged ears 7, and the hinge shaft 8 penetrates the vertical flat joint and the two hinged ears 7. The support head 2 can rotate relative to the support rod 1 with the configuration of the long rail 4.

[0020] The support head 2 is a steel block, and the long rail contact surface of the support head 2 is covered with a rubber cushion. The support head 2 is supported at the intersection of the rail head and the rail waist of the long rail 4, and the line shape of the long rail contact surface of the support head 2 is consistent with the rail waist of the long rail 4 to prevent accidental damage to the long rail 4 during support.

[0021] The support rod 1 is a steel pipe, and both ends of the support rod 1 are flattened to form a transverse flat joint and a vertical flat joint.

[0022] The sizes of the support rod 1 and the support head 2 are fixed, which can ensure that the unloaded long rail 4 remains parallel to the trimmed tool rail 9 and ensure that the linear shape of the long rail is the same as that of the tool rail 9.

[0023] After the long rail 4 is unloaded, it is placed at the ends of both sides of the sleeper. At this time, the long rail 4 is randomly placed. After all the long rails are unloaded, the construction personnel take a crowbar and a wrench, and first use the crowbar to move the long rail 4 back and forth in a direction parallel to the sleeper to ensure that the ballasted track long rail overturning prevention device can be placed between the tool rail 9 and the long rail 4, and then remove the nut of one of the sleeper fasteners in the curved section, put the transverse flat joint of the support rod 2 on the spiral spike 3 and ensure that the support rod 2 is parallel to the sleeper, and then tighten the nut 6 to fix the support rod 2, and then use the crowbar to move the long rail 4 and adjust the position of the support head 2 so that the waist of the long rail 4 fits the support head 2, and the installation is completed. The number of ballasted track long rail overturning prevention devices installed in the curved section can be determined according to the actual situation on site, and the ballasted track long rail overturning prevention devices can also be installed in the straight section to ensure that the long rail will not overturn.

[0024] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for preventing long rails from overturning on a ballasted track, characterized in that: The invention comprises a support rod (1) and a support head (2); one end of the support rod (1) is used to connect with a spiral spike (3), and the other end of the support rod (1) is hinged with the support head (2), and the hinge axis is parallel to the length direction of the long rail (4); the support rod (1) is supported by the spiral spike (3) and supports the long rail (4) through the support head (2); the support rod (1) is parallel to the sleeper where the spiral spike (3) is located.

2. The device for preventing long rails from overturning on a ballasted track according to claim 1, characterized in that: One end of the support rod (1) connected to the spiral spike (3) is a transverse flat joint, on which a circular hole is formed, the diameter of the circular hole being adapted to the spiral spike (3), the circular hole of the support rod (1) being sleeved on the spiral spike (3), the support rod (1) being located between a flat washer (5) and a nut (6) on the spiral spike (3), and the nut (6) locking and fixing the support rod (1).

3. The device for preventing long rails from overturning on a ballasted track according to claim 2, characterized in that: One end of the support rod (1) connected to the support head (2) is a vertical flat joint, and a circular hole is formed on the vertical flat joint; one side of the support head (2) is a long rail contact surface, and two hinged ears (7) are arranged on the side of the support head (2) opposite to the long rail contact surface, the vertical flat joint of the support head (2) extends between the two hinged ears (7), and a hinge shaft (8) is inserted into the vertical flat joint and the two hinged ears (7).

4. The device for preventing long rails from overturning on a ballasted track according to claim 3, characterized in that: The support head (2) is a steel block, and the long rail contact surface of the support head (2) is covered with a rubber cushion layer.

5. The device for preventing long rails from overturning on a ballasted track according to claim 3, characterized in that: The support head (2) is supported at the junction of the rail head and the rail waist of the long rail (4), and the line shape of the long rail contact surface of the support head (2) is consistent with the rail waist of the long rail (4).

6. The device for preventing long rails from overturning on a ballasted track according to claim 2, characterized in that: The support rod (1) is a steel pipe, and the two ends of the support rod (1) are flattened to form a transverse flat joint and a vertical flat joint.

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