JP5980558B2 - Rail fastening / relaxation method for machine construction and rail fastening / relaxation device for machine construction - Google Patents

Description

  The present invention relates to a rail fastening / relaxation method for machine construction and a rail fastening / relaxation device for machine construction.

  Conventionally, as a rail fastening / relaxation device, there is a fastening / relaxation device (refer to Patent Document 1 below) applied to a directly connected track with sufficient laying extension and track record. The tightening of fastening bolts and nuts of the loosening device and temporary placement (preset) that does not hinder the rail replacement are largely due to human power.

  The rail fastening / relaxation device is a system in which the leaf springs are fixed with fastening bolts and nuts, so torque management of the fastening bolts and nuts is indispensable in order to keep the tightening state of the rail fastening / relaxation devices constant. Become.

  FIG. 4 is a view showing a conventional rail fastening / relaxing device.

  In this figure, 100 is a slab, 101 is an insulating plate, 102 is a tie plate, 103 is a shoulder portion of the tie plate 102, 104 is a rail, 105 is a fastening bolt, 106 is a nut, 107 is a washer, and 108 is a leaf spring. .

JP-A-7-238501 Japanese Patent Application No. 2011-288051 Japanese Patent Application No. 2011-288052

  However, as described above, since the conventional rail fastening / relaxation device for directly connected tracks is designed on the premise of manual construction, the shape of the leaf spring, the structure of the fastening bolt, etc. are required in order to correspond to the machine construction. It was necessary to make a new proposal. In addition, in order to reduce the labor required for current torque management, it was necessary to propose a new management method for monitoring the tightening state of the rail fastening / relaxation device.

  Therefore, the inventors of the present application have already proposed a rail fastening / relaxation method and apparatus for machine construction (Patent Documents 2 and 3 described above) and have filed a patent application.

  However, in that prior patent application, there is a space between the bottom side surface of the rail and the fastening bolt. Therefore, in the rail fastening for machine construction, the shift amount at the time of fastening bolt preset is set securely and the rail fastening.・ There was difficulty in carrying out remission stably and smoothly.

  In view of the above circumstances, an object of the present invention is to provide a rail fastening / relaxation method for machine construction and a rail fastening / relaxation device for machine construction using a fastening bolt having a suitable shape adapted to the machine construction. .

In order to achieve the above object, the present invention provides
[1] In the rail fastening / relaxation method for machine construction, a protrusion protruding to the rail side of the bottom of the fastening bolt is formed, and this protrusion is brought into contact with the side of the bottom of the rail to shift the fastening bolt at the preset time. The amount is set, and the rail fastening / relaxation is performed by mechanized construction.

  [2] In the rail fastening / relaxing method for machine construction described in [1], the shift amount is 7 mm.

[ 3 ] In the machine construction rail fastening / relaxation device, the bottom portion has a protruding portion that protrudes toward the rail side, and this protruding portion is brought into contact with the bottom side surface of the rail to appropriately set the shift amount at the time of presetting. It is characterized by comprising fastening bolts that perform rail fastening and loosening by mechanized construction.

[ 4 ] The rail fastening / relaxing device for machine construction described in [ 3 ] above, wherein a shift amount of the fastening bolt is 7 mm.

  ADVANTAGE OF THE INVENTION According to this invention, while setting the amount of shifting at the time of the preset of a fastening bolt reliably, the rail fastening and loosening by machine construction can be made stable and reliable.

It is a figure which shows the shape of the fastening bolt of the rail crossing direction of the rail fastening and relieving apparatus for machine construction which shows the Example of this invention. It is a figure which shows the shape of the fastening volt | bolt of the rail laying direction of the rail fastening / relaxation apparatus for machine construction which shows the Example of this invention. It is a schematic diagram at the time of the preset of the fastening bolt of the rail fastening and relieving device for machine construction showing the embodiment of the present invention. It is a figure which shows the conventional rail fastening and relieving apparatus.

  In the rail fastening / relaxing method for machine construction according to the present invention, a projecting portion projecting to the rail side of the bottom portion of the fastening bolt is formed, the projecting portion is brought into contact with the bottom side surface of the rail, and the fastening bolt is shifted when presetting. Set the amount, and tighten and relieve the rail by mechanized construction.

  Hereinafter, embodiments of the present invention will be described in detail.

  FIG. 1 is a diagram showing the shape of a fastening bolt in the rail transverse direction of a rail fastening / relaxing device for machine construction showing an embodiment of the present invention, FIG. 2 is a diagram showing the shape of the fastening bolt in the rail laying direction, and FIG. It is a schematic diagram at the time of preset of a fastening bolt.

In these drawings, 1 is the fastening bolts (torque shear-type high-strength bolts), 2 the bottom of the fastening bolt 1, 3 is a protruding portion that 7mm projecting rail side of the bottom portion 2, the projecting portion 3 is inclined obliquely curved 3a have. On the upper side, a male screw portion 4 to which a nut 6 is screwed and a pin tail 5 on the upper end are provided. 7 is a tie plate, 8 is a tie plate shoulder portion, 9 is a fastening spring, 10 is a rail, and 10A is a bottom side surface of the rail.

  According to the mechanized construction, the pin tail 5 of the fastening bolt 1 is grasped by the inner socket of the electric wrench attached to the tip of the mechanical device, and the nut 6 is tightened, loosened, and adjusted in position. In addition, the shape dimension of the pin tail of the torcia type high strength bolt which is a fastening bolt is prescribed in JSSII-09 (set of structural torcia type high strength bolt, hexagon nut and plain washer).

  In particular, as shown in FIG. 3, when the fastening bolt 1 is preset, a shift amount 11 is required. Therefore, in the present invention, the fastening bolt 1 is formed with a protruding portion 3 that protrudes 7 mm toward the rail 10 side. The shift amount 11 is secured by bringing the portion 3 into contact with the bottom side surface 10A of the rail so that the rail fastening / relaxation by mechanized construction can be performed stably and reliably.

Further, the protruding portion 3 of the bottom 2 of the fastening bolt 1 because it has a tilting swash curved 3a, the engagement of the tie shoulder portion 8 of the tie 7 of the fastening bolt 1 can be smoothly performed.

In this embodiment, to form a projecting portion 3 which is 7mm protruding bottom 2 of the fastening bolt 1, a case has been exemplified having a tilting swash curved 3a in the protruding portion 3, the geometry is tie shoulder the 8a and geometry of the fastening bolt 1, which can be changed, the projection amount 7mm shown here, not necessarily to be limited to the inclined tracks surface.

  In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.

  The rail fastening / relaxation method for machine construction according to the present invention requires a shift amount at the time of fastening bolt presetting. Therefore, a protruding portion protruding to the rail side is formed, and this protruding portion is brought into contact with the bottom side surface of the rail. It can be used as a rail fastening / relaxation method for machine construction that secures the shift amount and that allows mechanized construction to be performed stably and reliably.

1 Fastening bolt (Torsia type high strength bolt)
2 bottom part of fastening bolt 3 projecting part 3a inclined curved surface 4 male screw part 5 pin tail 6 nut 7 tie plate 8 tie plate shoulder part 9 fastening spring 10 rail 10A rail bottom side surface 11 shift amount

Claims (4)

  Form a projecting part projecting to the rail side of the bottom of the fastening bolt, bring the projecting part into contact with the bottom side surface of the rail, set the shift amount at the time of presetting the fastening bolt, and tighten and relieve the rail by mechanized construction A rail fastening / relaxation method for machine construction, characterized in that it is performed.   The rail fastening / relaxing method for machine construction according to claim 1, wherein the shift amount is 7 mm.   Has a projecting part projecting to the rail side of the bottom part, with the projecting part abutting on the side of the bottom part of the rail, appropriately setting the shift amount at the time of preset, and equipped with a fastening bolt that performs rail fastening / relaxation by mechanized construction Rail fastening / relaxation device for machine construction, characterized by 4. The rail fastening / relaxing device for machine construction according to claim 3 , wherein a shift amount of the fastening bolt is 7 mm.

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