JPH0410251Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an electric multiple tamper, in which a rectangular parallelepiped part formed on the upper surface of the tamping tool near both sides of the rail is insulated by a hollow rectangular parallelepiped that fits the outer periphery of the rectangular parallelepiped part. An insulating film of a tapered cylindrical body having an inner periphery that matches the outer periphery of a tapered cylindrical part whose diameter gradually decreases as it goes upward, which is covered with a film and integrally formed below the rectangular parallelepiped. The tamping tool part thus insulated is inserted into the mounting hole of the tamping tool support frame, and the tamping tool removal groove formed above the tamping tool support frame is filled with a packing. The gist is that a fitting for preventing the packing from falling off and an insulating washer that fit the upper surface of the tamping tool support frame including the above-mentioned packing are arranged, and the above-mentioned insulating washer, fitting for preventing falling of the packing and the rectangular parallelepiped part are fixed with tightening bolts. .

FIG. 1 schematically shows the mechanism of a tamping tool for an electric multiple tamper.

One end of the arm 3 is rotatably attached to the rotation center 2, and the other end is pin-coupled to one end of the arm 4. One end of arm 5 is pin-coupled to a predetermined portion of arm 4, and the other end is rotatably attached to rotation center 6. A housing case 8 for housing a tamper motor is provided at the lower end of the arm 4. A support frame 9 for a tamping tool 10 is attached to the inside of the housing case 8, and the upper end of the typing tool 10 is supported within the support frame 9.

Tamping tool 1 consisting of such a configuration
As shown in Figure 2, an example of their arrangement, 16 0s are installed on the electric multiple tamper vehicle.
One tamper motor is configured to vibrate two tamping tools 10, 101 in FIG. 2. That is, in this case, the multiple tamper vehicle is provided with eight tamper motors. An electric multiple tamper vehicle is run on the rail 11, and tamping tools 10, 10 are installed.
1 is positioned on both sides of the rail 11 at the predetermined front and rear positions of the sleeper 12 as shown in FIG.
As the piston of the hydraulic cylinder 7 moves forward and backward and the tamper motor in the storage case 8 is driven, the tamping tools 10 and 101 move up and down while vibrating by an unbalanced weight (not shown), and the tamping tools 10 and 101 move the sleeper. 12. Compact the trackbed by pushing ballast into the bottom surface.

In this way, the electric multiple tamper vehicle tampers the roadbed under the sleepers 12 that have been laid one after another.

On the other hand, between stations that make up a single-track block section, alarms are mainly controlled by the level crossing controller, but if there are many level crossings in the block section, some warning sections for the level crossings may be used. There may be overlap, and depending on the load of the Titanium vehicle, driving method, stopping position, etc., the level crossing alarm may malfunction. Among alarm system malfunctions, if the barrier is lowered when the train is not close to the level crossing,
Although there is no major problem, if the crossing gate malfunctions, such as raising the train even though the train is approaching the level crossing, there is a risk of serious accidents such as personal injury. In order to avoid this, the level crossing controller is activated only by the position detection information from the rail signal current of the commercial train, and the titan pump car is equipped with insulated wheels so that it will not be activated depending on the position information of the titan pump car. The method used is to use so-called insulated vehicles and stop at railroad crossings to check. As a result, the malfunction of level crossing alarms caused by multiple tie tamper vehicles on single-track block sections has almost no longer occurred, but recently accidents have occurred in which malfunctions of level crossing alarms occurred during track bed compaction work on curved sections of single-track block sections. was discovered,
As a result of investigating the cause, it was found that during road bed compaction with the electric multiple tamper, the tamping tool may come into contact with the rail 11 or the rail bond in the curve section, and as a result, the rail signal current is transferred from one rail to the tamping tool. It was discovered that the multiple tamper, the other tamping tool, and the other rail were mistaken for a commercial vehicle, causing the level crossing alarm to malfunction.

The object of the present invention is to prevent the above-mentioned accidents that occur when working on a single track block section of a multiple tie tamper, especially on a curved section.

The present invention will be explained with reference to FIGS. 3a to 4b.

FIGS. 3a and 3b show a conventional tamping tool 10.
The support mechanism is shown.

The upper end portion 13 of the tamping tool 10 is a tapered cylindrical portion whose diameter gradually decreases as it goes upwards, and a center portion of the upper surface of the tapered cylindrical portion 13 has a cross-sectional area smaller than the cross-sectional area of the upper surface. A rectangular parallelepiped portion 14 having a cross-sectional area is formed, and the rectangular parallelepiped portion 14
A bolt hole 22 is formed in the upper surface of. A tapered hole 91 is formed in the support frame 9 to fit around the tapered cylindrical portion 13 and rectangular parallelepiped portion 14 of the typing tool 10.

Insert the rectangular parallelepiped part 14 and tapered cylindrical part 13 of the tamping tool 10 into the hole 91 of the support frame 9, insert the bolt 23 into the corresponding bolt hole formed on the upper surface of the support frame 9, and insert the bolt 23 into the rectangular parallelepiped part. 1
The tamping tool 10 is fixed to the support frame 9 by screwing into the bolt hole 22 formed on the upper surface of the tamping tool 4.

On the other hand, in the present invention, FIG.
As shown in b, the tamping tool 10 is electrically isolated from the multiple tamper body.

The rectangular parallelepiped part 14 is covered with an insulating film 15 made of hollow hard vinyl or the like whose inner periphery matches the outer periphery of the rectangular parallelepiped part 14, and the tapered cylindrical part 13 is further covered with an insulating film 15 whose inner periphery matches the outer periphery of the tapered cylindrical part 13. Made of hard vinyl, etc., with a hollow part that is compatible with
It is covered with an insulating film 16 having a tapered cylindrical shape.
The rectangular parallelepiped portion 14 and tapered cylindrical portion 13 of the tamping tool 10 thus insulated are inserted into the tapered hole 91 of the support portion 9 . On the other hand, a packing 18 made of hard rubber or the like is provided in a tamping tool removal hole 171 formed in the upper convex portion 17 of the support portion 9.
A falling-off prevention metal fitting 19 that fits the upper surface and a part of the side circumference of the convex part 17 is placed on the convex part 17, and a circular insulating washer 20 is placed on the falling-off prevention metal fitting 19. Bolt holes 191 and 201 are formed in corresponding parts of the falling-off prevention fitting 19 and the insulating washer 20, respectively. bolt 2
1 into the bolt holes 201 and 191, and screwed into the bolt hole 22 of the rectangular parallelepiped part 14. By doing so, the tamping tool 10 is electrically insulated from the tamper car body by the hollow rectangular parallelepiped insulating film 15, the tapered cylindrical insulating film 16, and the insulating washer 20.

The tamping tool according to the invention is used as a tamping tool in close proximity to a rail, shown as 101 in FIG. The tamping tool 10 located outside the rail of the tamping tool is a conventional tamping tool because there is no risk of it coming into contact with the rail. The tip of the tamping tool wears out during the work of compacting the track bed, so the work time is reduced.
When the insulating film exceeds 200 to 220 hours, it must be replaced. At the time of replacement, the above-mentioned insulating film can be replaced with a new insulating film to maintain a predetermined insulating effect.

According to the present invention, it is possible to effectively prevent the false operation of the level crossing warning in a curved section in a single track block section as described above, and it is possible to prevent serious accidents such as personal injury accidents.

[Brief explanation of the drawing]

Figure 1 is a front view to explain the tamping tool part of the electric multiple tamper;
The figure is a plan view showing the position of compacting the track bed using the tamping tool of the electric multiple tamper.
Figure a is a plan view showing a conventional installation example of a tamping tool for an electric multiple tamper; Figure 3 b
3A is a front view of FIG. 3A, FIG. 4A is a front view of an assembled example of the present invention, and FIG. 4B is a partially cutaway front view of the tamping tool of the present invention. 9...Tamping tool support frame, 10,101
... Tamping tool, 11 ... Rail, 13 ...
...Tapered cylindrical part, 14... Rectangular parallelepiped part, 15...
Insulating film consisting of a hollow rectangular parallelepiped, 16... Tapered cylindrical insulating film, 171... Tamping tool removal groove, 18... Packing, 19...
Packing fitting to prevent falling off, 20...Insulating washer, 21
...Tightening bolt.

Claims (1)

[Scope of utility model registration request] A rectangular parallelepiped part formed on the upper surface of the tamping tool adjacent to both sides of the rail is covered with an insulating film made of a hollow rectangular parallelepiped that matches the outer periphery of the rectangular parallelepiped part, and an upper The outer periphery of the tapered cylindrical part whose diameter gradually decreases as it goes is covered with an insulating film of the tapered cylindrical body having an inner periphery that matches the outer periphery, and the insulated tamping tool part is placed on the tamping tool support frame. Insert into the mounting hole,
On the other hand, the tamping tool removal groove formed above the tamping tool support frame is filled with a packing, and on top of that, a fitting for preventing the packing from falling off and an insulating washer are fitted to the upper surface of the tamping tool support frame including the packing. The electric multiple tie tamper consists of the insulating washer, the packing fitting and the rectangular parallelepiped part, which are arranged and fixed with tightening bolts.