JP4774278B2 - Rail jack-up device - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a rail jack-up device that is used in the construction of a railroad track.

Background art and issues

  For example, as described in Patent Document 1, a railroad track in which a sleeper is placed on a concrete body to support a rail has been frequently used in recent years.

  Since the track has a narrow gap between the concrete body and the rail, when the rail must be jacked up, such as for repairing the road bed, a complicated operation such as separating the rail and the sleeper is required.

In consideration of such a normal situation, the present invention was created to provide a device that can easily and reliably jack up a rail using a narrow gap directly under the rail (for example, Patent Document 1).

JP 2003-261901 A

At one end of the device substrate disposed on the lower side of the rail through a gap between the rail and the sleeper, a locking piece that is detachably locked to the leg seat portion of the rail is erected and is opposed to the one end. An assembly window is provided at the other end of the device board, and a pressure receiving block that is pushed by the turnbuckle device and locked to the edge of the window is inserted through the assembly window so as to be separable from the device board. And a support piece that can be moved up and down of the jack placed on the road bed is provided directly below the assembly part of the pressure receiving block that is placed on the lower surface of the apparatus substrate, and provided on the pressure receiving block. It was interposed by tilting the turnbuckle device between the inner corner portion and the rail head lower surface of the inner corner portion, pressed against the one one entering-corners to the tip of the reciprocating rod of the turnbuckle device pressure the pressing piece, the tip of the other reciprocating rod to the other of the front entry corners of The pressing pieces, provided, respectively, is obtained by the configuration.

  According to the present invention, it is possible to easily obtain a jack-up device using a slight gap immediately below the rail, and thus it is applicable not only to a case where the rail just below the rail is crushed stone but also to a concrete body that is difficult to remove easily. Can be practical.

  Also, in assembly with the rail, the turnbuckle device can reinforce the device substrate having inferior load resistance, thereby providing a jackup device having excellent load resistance.

  The drawings show an embodiment of the rail jack-up device according to the present invention, FIG. 1 is a plan view with a part omitted, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. 3 is a front view of FIG. FIG.

  The railroad track of the embodiment is configured by fastening a rail R placed on a so-called ladder sleeper S made of concrete with a fastening device t and supporting the sleeper S with a road bed b made of crushed stone.

  As a result of the rail R being fastened to the sleeper S by the fastening device t, the base t ′ of the fastening device t is interposed between the rail R and the sleeper S, and the base t ′ is between the rail R and the sleeper S. A gap a having a spacer as a spacer is formed.

  Further, in the drawing of FIG. 1, a pair of jack devices A according to the present invention are arranged for the rail R so as to perform the jack-up operation of the rail R, but each jack-up device A is operated simultaneously. do not have to. That is, there is no inconvenience even if the rail R is partially jacked up using a single jackup device A.

  In the figure, 1 is an apparatus substrate, and the apparatus substrate 1 is formed of a rectangular steel plate body. A locking piece 2 is erected on one end in the longitudinal direction, and a rectangular assembly window 3 is provided on the other end side. It is configured.

  The locking piece 2 is formed by welding a steel block body to the steel plate body, and the engagement notch 4 of the leg seat portion Rb of the rail R is formed by notching a lower portion on one side of the window 3 side. Constitute.

  As described above, the assembly window 3 is configured so that the pressure receiving block 5 assembled using the window 3 faces the locking piece 2 provided on one end side of the substrate 1. It is provided on one end side.

The device substrate 1 has one end side on the window 3 side from the inner side to the outer side of the rail R through the gap a, and the leg seat portion Rb of the rail R in the engagement notch 4 of the other two locking pieces on one end side. Are interposed between the rail R and the sleepers S so as to engage with each other.

The pressure receiving block 5 assembled to the apparatus substrate 1 using the window 3 has a pressure receiving piece 5b at a middle portion in a vertical direction on one side of the locking piece 2 side of a rectangular parallelepiped block main body 5a. Each of the pressure receiving part pieces 5b is constructed by projecting an assembly part piece 5c in the horizontal direction at the lower end of one side opposite to the one side , and the block main body 5a and the assembly part piece 5c continuous therewith It is narrower than the width of the window 3 so that it can be inserted into the window 3, and the vertical thickness of the window 3 relative to the width of the window 3 and the protruding amount of the pressure receiving piece 5b from the body 5a. The sum of (width) is made larger (longer), and the projecting position of the pressure receiving portion piece 5b from the block main body 5a (the intermediate portion in the vertical direction) is the plate of each of the substrate 1 and the assembly piece 5c. Is the bottom of the block main body 5a almost the same as the total thickness? It is to distract the position.

The pressure receiving block 5 is formed by superimposing the assembly piece 5c on the lower surface of the apparatus substrate 1 from the upper surface side of the apparatus substrate 1 through the window 3, and the pressure main body 5a of the pressure receiving block 5 is composed of the pressure receiving piece 5b. one pressing piece 10 of the turnbuckle device 9 engages the inner corner portion 8, the other pressing piece 10 'of the motor Nbakkuru device 9 is engaged in the inner corner portion 8' directly below the head Ra of the railway R It is.

  The turnbuckle device 9 is configured by screwing a pair of advancement / retraction rods 9b, 9b ′ to the turnbuckle 9a, and the columnar-shaped pressing piece 10 is formed at the tip of one advancement / retraction rod 9b protruding from one end of the turnbuckle 9a. A pressure receiving block 5 in which the columnar pressing piece 10 'is provided at the tip of the other advancing and retracting rod 9b' protruding from the other end, and the pressing pieces 10 and 10 'are combined on the apparatus substrate 1 side. The rail R is configured to be locked as described above.

  In the figure, reference numeral 12 denotes a jack in which the receiving piece 12b moves up and down by operating the operation lever 12a. The jack 12 is placed on the road bed b, and the receiving piece 12b is mounted on the apparatus substrate 1. The embodiment device is configured by arranging the pressure receiving block 5 just below the assembly portion piece 5c superimposed on the lower surface side.

Accordingly, the end of the apparatus substrate 1 on the side of the assembly window 3 is arranged from the inner side to the outer side of the rail R through the gap a, and the engagement notch 4 constituted by the locking piece 2 provided on the substrate 1 is formed on the rail R. The device substrate 1 is arranged on the lower side of the rail R by engaging with the leg seat Rb, and the corner portion of the pressure receiving block 5 assembled to the device substrate 1 using the assembly window 3 in this arranged state. When the turnbuckle device 9 is operated with the turnbuckle device 9 interposed between the rail 8 and the corner corner 8 'on the rail R side, each advancement / retraction lever 9b, 9b' protrudes from the buckle 9a, and the advancement / retraction force 9b, 9b ' pressing piece 10 'provided in the tip is pressed against the front entry corners 8 or 8', the result, the engaging piece 2 provided on the device substrate 1 is engaged in Ashiza unit Rb to rail R, the pressure receiving The block 5 is locked to the edge of the assembly window 3, and the device substrate 1 and the tanne buckle device 9 are rails. It will be assembled integrally with R.

In this state, when the support piece 12b of the jack 12 is raised, the support piece 12b is positioned directly below the assembly part piece 5c, so that it is pushed up to lift the rail R including the sleepers S by the jack 12. Since the force to transmit is transmitted to the rail R side not only through the device substrate 1 but also through the turnbuckle device 9, the rail R is partially raised, and an appropriate space is formed between the sleepers S and the road bed b. The road bed b repair work such as filling the space with new crushed stone can be performed.

The top view which abbreviate | omitted and showed it. The partially expanded view of FIG. The front view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Device board | substrate 2 Locking piece 5 Pressure-receiving block 8, 8 'Corner part 9 Turnbuckle device 9a, 9a' Advance / retract 10,10 'Pressing piece R Rail

Claims (1)

At one end of the device substrate disposed on the lower side of the rail through a gap between the rail and the sleeper, a locking piece that is detachably locked to the leg seat portion of the rail is erected and is opposed to the one end. An assembly window is provided at the other end of the device board, and a pressure receiving block that is pushed by the turnbuckle device and locked to the edge of the window is inserted through the assembly window so as to be separable from the device board. And a support piece that can be moved up and down of the jack placed on the road bed is provided directly below the assembly part of the pressure receiving block that is placed on the lower surface of the apparatus substrate, and provided on the pressure receiving block. It was interposed by tilting the turnbuckle device between the inner corner portion and the rail head lower surface of the inner corner portion, pressed against the one one entering-corners to the tip of the reciprocating rod of the turnbuckle device pressure the pressing piece, the tip of the other reciprocating rod to the other of the front entry corners of The pressing pieces, provided each rail of the jack-up device.

Images