JPH0762321B2 - Railway rail drilling machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rail rail drilling machine which is used for laying and repairing rails and for drilling bolt holes for connecting joint plates applied to the rails.

[0002]

2. Description of the Related Art When laying railroad rails or replacing old railroad rails, reinforcing rails are applied to the rails and bolts are fastened to each other.
At that time, a predetermined number of bolt holes are drilled in the rail abdomen,
Since the bolt insertion hole of the joint plate has a predetermined drilling height and pitch determined by various rails, it is necessary to form the bolt insertion hole according to the bolt insertion hole of the joint plate. However, when drilling a bolt hole in a railroad rail, conventionally, the position of the drilling hole was marked on each railroad rail, and a punch mark was attached to the rail. The work of punching and punching is troublesome, and a heavy punching machine is not easy to handle, and there has been a demand for a punching machine that can easily and quickly replace an urgent rail rail.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and completely eliminates the scribe and punch work which has been conventionally performed for each railroad rail, and can be applied to various rails. An object of the present invention is to provide a rail rail punching machine that enables setting and punching work of the punching machine easily and quickly.

[0004]

In order to solve the above-mentioned object, the rail rail punching machine of the present invention has a body case,
A slide shaft in which a rotary drive source having a drilling cutter for drilling a bolt hole in the rail abdomen of a railroad rail is fixedly provided at the tip of an output shaft and slidably juxtaposed on both sides of the main body case. A catch frame is fixed to the front end of the rail, and the rail is gripped and fixed from both sides by the clamp means of the catch frame and a clamp arm pivotally supported by the catch frame, and the rail is fixed to the rear end of the slide shaft. A link mechanism with a rotating handle for advancing and retracting the main body case around the holding plate as a fulcrum is interposed between the plate and the main body case, and a rail head pad is fixed inwardly on the upper holding surface of the catch frame. At the same time, a height gauge is bolted to the lower portion of the height gauge, and the height gauge has a through hole formed substantially in the center,
Two rail belly pads fixed side by side with a space below and a rail chin rest mounting position is changed according to the rail jaws of different shapes for each rail type. A plurality of screw holes are provided, the clamp arm is provided with a hook portion that abuts on the rail abdomen of the railway rail at the lower end, and a screw cylinder is provided at the upper end. The clamp screw with a handle is screwed vertically downward while being aligned with the axis of the cutter, and the clamp is provided on the upper surface of the railroad rail according to the pitch of the bolt holes specified for each railroad rail. It is characterized in that a pitch gauge provided with a plurality of countersunk holes in which the lower end of the screw is sequentially tightened and fixed is detachably attached.

[0005]

In the punching machine of the present invention, the main body case 1 is clamped to the rail rail 8 at right angles in the vertical direction and the horizontal direction with respect to the rail rail 8 by the clamping means composed of the catch frame 6 and the clamp arm 7. The rotation handle 16a is rotated to advance the cutter 2 at a right angle to the rail abdomen 8a to form the bolt hole 13 at a predetermined position.

When connecting the end faces of the rail 8 with the joint plate, the end face 8d of the rail 8 is used as a reference, and a predetermined pitch and a predetermined height are determined in the longitudinal direction from the end face 8d. It is necessary to form a number of bolt holes 13, 13 ... In the present invention, the pitch gauge 20 and the height gauge 1 are used to specify the punching position of the cutter 2.
0 is used.

The pitch gauge 20 is provided with a plurality of countersink holes 21, 21 ... Corresponding to the pitch of predetermined bolt holes 13 on various rails with reference to the end surface 8d of the rail 8 to be drilled or a predetermined position. It is detachably attached to the upper surface of the rail 8.

That is, in the case of an ordinary railroad rail, it is possible to partially replace the rail, the replacement portion of the existing rail is cut off from the middle, and a new rail is installed at the cutout portion, and the rail abdomen 8a of the rail joint is installed. A joint plate is attached and bolted. When drilling a predetermined number of bolt holes 13 in such a rail abdomen 8a at a predetermined pitch, the end surface 20c of the pitch gauge 20 is fixed to the end surface 8d of an existing rail or a new rail, and a plurality of pitch gauges 20 are fixed. The clamp screw 14 is sequentially tightened and fixed to the countersink holes 21, 21 ..., and the bolt holes 13, 13 ... Are sequentially drilled at a predetermined pitch in the rail abdomen 8a. (Fig. 4
In addition, when repairing a cracked part of a rail that does not create a seam between a new rail and an existing rail such as a Shinkansen rail, apply a repair plate to the rail abdomen 8a at this cracked part and fasten the bolts. To do. At this time, a pitch gauge 20 'having a sandwiching piece 20a at both ends is prepared, the center 29c is attached to the pitch gauge 20' at a position determined from the cracked portion of the rail, and the rail abdomen is formed by the above method. 8a with bolt holes 13 at a predetermined pitch
Are sequentially drilled. (See FIG. 6) A plurality of countersinks 21, 21, ... Are provided in such a pitch gauge 20,
The countersink holes 21 are bolt holes 1 to be drilled at a predetermined pitch from the end surface 8d of the rail 8 or a predetermined position.
3, 13 and so on. By tightening the clamp screw 14 in the countersunk hole 21, positioning of the clamp means in the longitudinal direction of the railroad rail 8, that is, the cutter 2 in the longitudinal direction of the railroad rail 8 is performed. The drilling position is determined.

The height gauge 10 sets the height with respect to the drilling position in the longitudinal direction of the rail 8 which is set as described above. The height gauge 10 is fixed inside the holding surface of the catch frame 6,
The height gauge 10 has a through hole 11 formed substantially in the center thereof, while the rail gauges 9b, 9b provided in parallel with the height gauge 10 are provided with screw holes 12, 12 ... The mounting positions of the rail jaw receivers 9b and 9b are variable by providing variously according to the drilling position of the bolt hole 13 designated for each.

Further, in the present invention, the width of the railway rail 8 is clamped from both sides by tightening the clamp screw 14 in the countersink 21, whereby the cutter 2 can be advanced at a right angle to the rail abdomen 8b and horizontally. Becomes

The height gauge 10 is preset for each type of rail by the mounting positions of the rail jaw supports 9b, 9b. Therefore, when the punching cutter 2 is positioned by tightening the clamp screw 14 into the countersink 21. At the same time, the drilling position of the drilling cutter 2 with respect to the longitudinal direction of the rail 8 can be set.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view of a punching machine according to the present invention. FIG. 2 is a side view of the clamping means according to the present invention. FIG. 3 is a diagram for explaining a clamped state of the clamp means shown in FIG. 2 with respect to a rail. FIG. 4 (a) shows an overall perspective view of the punching machine according to the present invention, and also shows the installation positional relationship with a pitch gauge to be mounted on a normal rail, and FIG. 4 (b) shows the positions of bolt holes drilled in the rail abdomen. It is a side view of a railroad rail showing relations. FIG. 5 is a perspective view of the height gauge according to the present invention. FIG. 6 is an overall perspective view of the punching machine according to the present invention, and shows the installation positional relationship with a pitch gauge mounted on a railroad rail for Shinkansen. FIG. 7 is a vertical cross-sectional view of the cutter mounting portion of the punch according to the present invention.

In FIG. 1, reference numeral 1 denotes a main body case. A rotary drive source 3 of an electric motor for a punching cutter 2 is fixed in the main body case 1, and an output shaft 4 of the rotary drive source 3 is provided in the main body case. It projects outward from No. 1. As shown in the enlarged view of FIG. 7, the cutter 2 is attached by inserting the center pin 4c into the inner cavity of the output shaft 4 via the coil spring 4b and inserting the center pin 4c into the center pin via the 0 ring 4d. The guide 4a is fixed by screwing, and the screw portion provided on the inner circumference of the cutter 2 is screwed and fixed to the screw portion provided on the outer circumference of the tip of the output shaft 4. The cutter 2 uses a metal borer having a blade on the outer periphery of the tip of a cylinder so that the rail can be efficiently cut. The rotation drive source 3 may be driven by an engine, but in the present embodiment, a motor drive is used and an oil supply tank 31 provided at the rear of the main body case 1 is used.
The cutting oil supplied from the inside is guided into the output shaft 4 through the tube 31a, and the cutting oil is poured out to the front periphery of the cutter 2 by pushing in the center pin 4c during perforation. The pliers 30 are used for removing the core remaining in the cutter 2 without being extracted.

The upper surface of the main body case 1 is covered with a lid 1a and fixed by screws, and the upper surface of the lid 1a is provided with a switch 23a and the like.
Control box 23 with power cord 23b connected
Is attached.

On both sides of the main body case 1, slide shafts 5 are arranged in parallel with the output shaft 4 with the output shaft 4 arranged in the center.
5 are installed side by side and fixed. Screw portions 5a, 5a are provided at both ends of the slide shafts 5, 5 on the output shaft side, and a catch frame 6 having a substantially U-shaped lateral shape and an expanded lower central portion in the vertical direction is formed in the U-shaped shape. With the open side turned down, the through holes 6c, 6c are tightened and fixed with nuts. A clamp arm 7 is rotatably supported by a support shaft 22 in a central space in the vertical direction of the catch frame 6, and a holding surface 6a of the catch frame 6 and a hook portion 7a formed below the clamp arm 7 are provided. Clamping means is formed so as to face each other and sandwich the rail 8 from both sides in the width direction. However, the hook 7a is formed in a bifurcated shape (not shown) so as not to interfere with the forward movement of the cutter 2 described later.

Inside the holding surface 6a of the catch frame 6, one rail head support 9c is fixed inward at the upper center,
A height gauge 10 is detachably fixed below the height gauge 10.
As shown in FIG. 1 or 2, the height gauge 10 is fixed to the four insertion holes 6b, 6b ... Formed in the holding surface 6a of the catch frame 6 from the outside of the holding surface 6a.
It is performed by inserting c, 10c ... And tightening it into screw holes 10a, 10a.

As shown in FIG. 5, the height gauge 10 includes, in addition to the above-mentioned fixing screw holes 10a, 10a, ..., Two rail belly pads 9a, 9a at the lowermost position in parallel with each other. It is fixed, and a through hole 11 is bored at substantially the center.

Further, the height gauge 10 is provided with a plurality of screw holes 12, 12 ... Symmetrically according to the type of rail, and the rails are marked on each of the screw holes 12, 12. Before the drilling work, screw holes 12, 12 ... Are selected according to the railway rail to be drilled, fixing bolts 9d, 9d are inserted into the two rail jaw receivers 9b, 9b, and screwed in parallel. Keep it.

As shown in FIG. 2, a screw cylinder 7b is provided at the upper end of the clamp arm 7, and the screw cylinder 7b coincides with the axial center of the cutter 2 which advances in the direction perpendicular to the rail 8. The clamp screw 7 with the rotating handle 14a is screwed vertically downward, and the lower end 14c of the clamp screw 14 is tightened in accordance with the countersink 21 of the pitch gauge 20 described later to rotate the clamp arm 7 about the support shaft 22. The rail portion 8 is moved to press and hold the hook portion 7a against the rail belly portion 8a, and at the same time, the rail rail 8 is strongly pressed at right angles in the vertical and horizontal directions.

When the rail 8 is clamped by such a clamping means, as shown in FIG. 2, the rail jaws 8b are supported by the rail jaws 9b and 9b against the tightening of the clamp screw 14, The distance H2 from the bearing position of the rail jaw 8b to the drilling center 2c can be determined. As described above, in the present invention, the drilling height H1 from the bottom surface of the rail 8 is determined by the rail jaw holder 9b.
It is set by selecting the mounting position of. Further, by such a clamping means, as shown in FIG. 3 by the arrow, the rail bearing position and direction, the rail belly pads 9a, 9a support the rail belly portion 8a at two points in the horizontal direction, and the rail chin rest 9b, The rail jaw 8b is supported at two points in the horizontal direction by 9b, and the side surface of the rail head 8c is supported at one central point by the rail head rest 9c.
a, 9a, rail chin rests 9b, 9b, and rail head rest 9c
The respective lengths are set so that the holding surface 6a of the catch frame 6 hits the rail 8 vertically. However, as shown in FIG. 2, the lower end portion 14c of the clamp screw 14 is arranged such that its vertical line is located approximately in the center of the support portion between the rail belly pad 9a and the rail chin rest 9b. The screw 14 can be tightened stably.

The pitch gauge 20, as shown in FIG.
The end surface 20c of the pitch gauge 20 is placed on the upper surface of the rail 8 in alignment with the end surface 8d of the rail 8, and a holding piece 20a that can fit the width of the rail 8 from one side to one side of a flat plate. And a screw 20b having a butterfly-shaped tightening piece is provided on the side of the sandwiching piece 20a to attach the rail head 8c.
The side of can be tightened. Then, countersinks 21, 21, ... Are provided on the flat plate surface of the pitch gauge 20 from the end surface 20c as a reference corresponding to the drilling position of the bolt hole 13. Two countersink holes 21, 21, ... Are provided in the width direction so that the lower end portion 14c of the clamp screw 14 can be fastened to the countersink holes 21, 21 ,. .

When the railway rail to be repaired is the Shinkansen rail 8 ', the above-mentioned pitch gauge 20 is attached to its end face 29c.
The pitch gauge 20 'for the Shinkansen rails, which has been combined with the above, is made, and its center 29c is aligned with the position 29 corresponding to the cracked portion of the rail and placed on the upper surface of the rail. Countersinks 21 and 2 are also provided in the pitch gauge 20 'for this Shinkansen rail.
1 ... can be provided in the same manner as above, and can be clamped in the same manner as above.

Further, a holding plate 15 is fixedly provided to the rear ends of the two slide shafts 5 and 5 behind the main body case 1, and a rotating handle 1 is provided between the holding plate 15 and the main body case 1.
The link mechanism 16 with 6a is fixed. The body case 1 is moved back and forth by turning the handle of the link mechanism 16, and the cutter 2 attached to the output shaft 4 is clamped by the clamp arm 7.
The bolt holes 13 are bored in the rail abdomen 8a at a predetermined height and a predetermined pitch by inserting the two forked hook portions 7a and advancing them. Reference numerals 25 and 26 denote handles for carrying the punching machine, which are fixedly provided on the rear side of the main body case 1 and the front side of the clamp case 6.

During this drilling work, the rail jaw supports 9b, 9b
Is attached to the predetermined screw holes 12 depending on the type of the rail, and the drilling height of the bolt hole 13 is set in advance.
And the pitch gauge 20 attached to the upper surface of the rail 8
Tighten the clamp screw 14 for each countersink 21 of
Rail abdomen 8 by rotational drive and forward movement of the cutter 2
When one bolt hole 13 is drilled for a, the clamp screw 14 is loosened, moved to the next countersink hole 21 and tightened, and thus a predetermined number of holes are drilled, so that the bolt hole 13 with a predetermined pitch and height is formed. Obtainable.

After punching, the core in the cutter 2 is pulled out by the pushing force of the center pin 4c by the coil spring 4b, but it may not be pulled out only by this spring force due to abrasion of the cutter 2 or the like. In such a case, height gauge 1
The tip of the pliers 30 is inserted from the outside of the through hole 11 of 0, and the outer periphery of the core in the cutter 2 is sandwiched and pulled out.

[0027]

According to the punching machine of the present invention described above,
Rail jaw supports 9b, depending on the type of rail to be drilled,
9b is fixed to a predetermined position of the height gauge 10 and the pitch gauge 20 is attached to a predetermined position on the upper surface of the rail 8 and a countersunk hole 21 of the pitch gauge 20 is tightened with a single clamp screw 14. Can be firmly fixed at right angles in both the vertical direction and the horizontal direction, and at the same time, the drilling positions of the bolt holes 13 can be set in terms of both pitch and height. After setting up such a punch,
The boring work can be performed simply by advancing the rotating cutter 2 with the rotating handle 16a.

Therefore, it is possible to perform extremely easy and quick drilling work without carrying out the work of marking the punching position or marking the punch mark on the rail rail in the position drilling work.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a punching machine according to the present invention.

FIG. 2 is a side view of the clamping means according to the present invention.

FIG. 3 is a diagram for explaining a clamped state of the clamp means shown in FIG. 2 on a rail.

FIG. 4 (a) shows an overall perspective view of a punching machine according to the present invention, and also shows a positional relationship with a pitch gauge to be mounted on a normal rail, and FIG. 4 (b) shows drilling on the rail abdomen. It is a side view of a railroad rail showing a physical relationship of a bolt hole.

FIG. 5 is a perspective view of a height gauge according to the present invention.

FIG. 6 is an overall perspective view of a punching machine according to the present invention, showing a positional relationship with a pitch gauge attached to a railroad rail for a Shinkansen.

FIG. 7 is a vertical cross-sectional view of a cutter mounting portion of the punch according to the present invention.

[Explanation of sign]

1 ... Main body case, 2 ... Cutter, 3 ... Rotation drive source, 4 ...
Output shaft, 5 ... Slide shaft, 6 ... Catch frame, 7 ... Clamp arm, 8 ... Rail rail, 8a ... Rail abdomen, 8b ... Rail jaw, 8c ... Rail head, 9a ...
Rail belly pad, 9b ... Rail jaw rest, 9c ... Rail head pad, 10 ... Height gauge, 11 ... Through hole, 12 ... Screw hole,
13 ... Bolt hole, 14 ... Clamp screw, 15 ... Holding plate, 16 ... Link mechanism, 16a ... Rotation handle, 2
0, 20 '... Pitch gauge, 21 ... Countersink.

Claims (1)

[Claims] 1. A rail rail (8) for a main body case (1).
A rotary drive source (3) having a drilling cutter (2) at the tip of the output shaft (4) for drilling a bolt hole (13) in the rail abdomen (8a) is fixedly mounted, A catch frame (6) is fixedly installed at the front ends of slide shafts (5, 5) slidably arranged on both sides of the case (1), and is pivotally supported by the catch frame (6) and the catch frame (6). The rail rail (8) is gripped and fixed from both sides by the clamp means with the clamp arm (7), and the holding plate (15) fixed to the rear end of the slide shaft (5, 5) and the main body case ( A link mechanism (1) with a rotating handle (16a) for moving the main body case (1) forward and backward around the holding plate (15) as a fulcrum between 1).
6) is interposed, and a rail head rest (9c) is fixed inwardly on the upper portion of the holding surface (6a) of the catch frame (6), and a height gauge (10) is bolted to the lower portion thereof. The height gauge (10) is provided with a through hole (11) formed substantially in the center, and two rail belly pads (9a, 9a) fixed and arranged side by side at a lower interval. Rail jaws (8b) with different shapes for each type of rail (8)
A plurality of screw holes (12, 12) drilled at symmetrical positions where the mounting positions of the rail jaw supports (9b, 9b) are changed according to
...) are provided, and the clamp arm (7) is provided at its lower end with a hook portion (7a) that comes into contact with the rail belly portion (8a) of the railway rail (8), and at the upper end thereof, a screw cylinder (7b).
Is provided on the screw cylinder (7b).
4a) with a clamp screw (14) screwed vertically downward in a state of being aligned with the axis of the cutter (2), and on the upper surface of the rail (8), for each rail (8). According to the specified pitch of the bolt holes (13), the lower end portion (1) of the clamp screw (14) is
4c) are sequentially tightened and fixed to a plurality of countersinks (21, 21)
A railway rail punching machine characterized in that a pitch gauge (20) provided with ...) is detachably attached.