WO1993025759A1

WO1993025759A1 - Machine for making hole in railway rail

Info

Publication number: WO1993025759A1
Application number: PCT/JP1993/000213
Authority: WO
Inventors: Hirotoshi Noda
Original assignee: Kabushiki Kaisha Yamazaki Haguruma Seisakusho
Priority date: 1992-06-15
Filing date: 1993-02-22
Publication date: 1993-12-23
Also published as: JPH0762321B2; CA2114119C; CA2114119A1; JPH05345210A

Abstract

A machine for making a hole in a railway rail in which a main body case (1) is clamped to a railway rail in a widthwise direction by means of a clamping means comprising a catch frame (6) and a clamping arm (7), and in which a cutter (2) is advanced perpendicularly to a rail body portion (8a) by rotating a rotating handle (16a) of a link mechanism (16) so as to make a bolt hole (13) in a predetermined position, the machine being characterized in that the position of the bolt hole (13) to be made in the rail body portion (8a) can be set by means of a height gauge (10) fixedly provided on the catch frame (6) and a pitch gauge (20) attached to the top surface of the railway rail (8).

Description

Description Railway rail drilling machine Technical field

TECHNICAL FIELD The present invention relates to a railway rail drilling machine used for drilling bolt holes for connecting seam plates applied to railway rails when laying and repairing railway rails. Background art

When laying rail rails or replacing old railroad rails, rails are joined by applying a seam plate for reinforcement and bolting them together. At this time, a predetermined number of bolt holes are drilled in the abdomen of the rails. However, since the height and pitch of the bolt insertion holes of the seam plate are determined by various railway rails, the bolt holes of this seam plate are used. It is necessary to pierce according to.

In the past, when drilling bolt holes in railway rails with force s', the conventional practice was to mark the position of the drilled hole for each railway rail, attach a punch mark, and drill with that aim. The work of piercing and punching each rail was troublesome, and heavy drilling machines were not easy to handle, and there was a need for a drilling machine capable of easily and quickly replacing railroads that require urgency.

The present invention has been made in order to solve the above problems, and completely eliminates the scribing and punching work conventionally performed for each railway rail, and easily and quickly sets a drilling machine for various rails. An object of the present invention is to provide a railway rail drilling machine capable of performing drilling work. Disclosure of the invention

The present invention relates to a railway rail drilling machine, in which a rotary drive source 3 of a punch 2 is fixed in a main body case 1 with an output shaft 4 protruding outward, and a rotary drive source 3 is provided. Slide shafts 5 and 5 are arranged on both sides of the main body case 1 in the center position, and clamped to the catch frame 6 fixed to both ends 5a and 5a of the output shaft side of the slide shafts 5 and 5 A clamp that pivotally supports the arm 7 so that the holding surface 6a of the catch frame 6 and the forked hook 7a below the clamp arm 7 face each other and sandwich the rail rail 8 from both sides in the width direction. A rail gauge 9c is fixed inward on the inner side of the holding surface 6a of the catch frame 6, and a height gauge 10 having a through hole 11 substantially at the center is bolted to the catch frame 6 to secure the height. When the two gauges 9a and 9a are juxtaposed at an interval In both cases, the rail jaws 9 b are set so that the drilling height of the bolt hole 13 specified for each railway rail is set by the mounting positions of the two rail jaws 9 b and 9 b with respect to the height gauge 10. , 9 b are provided with various screw holes 1, 1, 2,..., And the end face of the rail rail 8 or a predetermined position is set in accordance with the pitch specified for each rail rail of the bolt hole 13. A pitch gauge 20 provided with a plurality of countersunk holes 2 1, 2 1... Is detachably provided on the upper surface of the railroad rail 8 to be drilled, and a turning handle 1 is provided on a screw cylinder 7 b at the upper end of the clamp arm 7. 4 Insert a clamp screw 14 with screw a vertically downward to fit with the axis of the cutter 2, and fit the lower end 14 c of the clamp screw 14 into the countersunk hole 21 of the pitch gauge 20. At the same time, the clamping means is positioned by tightening The rails 8 are held vertically and horizontally at right angles to the rails, and holding plates 15 are fixed to the rear ends of the slide shafts 5, 5, between the main body case 1 and the holding plates 15 The turning handle 16a for moving the body case 1 forward and backward with the holding plate 15 as a fulcrum The link mechanism 16 is interposed, and the force motor 2 attached to the output shaft 4 is advanced by rotating the handle of the link mechanism 16 so that the rail abdomen 8a has a predetermined height and a predetermined bolt at a predetermined pitch. Holes 13 were drilled. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is an exploded perspective view of a drilling 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 crumb state of the crumb means shown in FIG. 2 with respect to the railroad rail.

FIG. 4 (a) shows an overall perspective view of the drilling machine according to the present invention, and shows an installation positional relationship with a pitch gauge mounted on a normal railway rail.

(b) is a side view of the railroad rail showing the positional relationship of bolt holes drilled in the rail abdomen.

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

FIG. 6 is an overall perspective view of the drilling machine according to the present invention, and shows a positional relationship with a pitch gauge mounted on a railroad rail for a Shinkansen.

FIG. 7 is a vertical cross-sectional view of a force turret mounting portion of the drilling machine according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

In FIG. 1, reference numeral 1 denotes a main body case, and a rotary drive source 3 by an electric motor of a drilling cutter 2 is fixed in the main body case 1, and an output shaft 4 of the rotary drive source 3 is connected to the main body case. It protrudes outward from one. As shown in the enlarged view of FIG. 7, the center pin 4c is inserted into the lumen of the output shaft 4 through the coil spring 4b, and the center pin 4c is attached to the cutter 4 as shown in the enlarged view of FIG. Center pin guide 4 d The screw provided on the inner circumference of the cutter 2 is screwed and fixed to the screw provided on the outer circumference of the tip of the shaft 4.

The cutter 2 uses a metal borer having a blade on the outer periphery of the tip of the cylinder so that the rail can be cut efficiently. The rotary drive source 3 may be an engine drive, but in this embodiment, a motor drive is used, and the lubrication nozzle 31 provided behind the body case 1 ^ During the drilling, the center pin 4c is pushed in, so that the cutting oil is poured around the front of the force cutter_2. The pliers 30 are used as cores that have not been extracted into the cutter 2 and remain.

The upper surface of the main body case 1 is covered with a lid 1a and fixed with screws.The upper surface of the lid 1a is equipped with a switch 23a etc., and a control box 23 connected to a power cord 23b is installed. It is.

On both sides of the main body case 1, slide shafts 5, 5 are fixed side by side in parallel with the output shaft 4 with the output shaft 4 arranged at the center. Screws 5a, 5a are provided at both ends of the output shaft side of the slide shafts 5, 5. With the open side of the letter-shaped face down, tighten and fix each of the through holes 6c and 6c with a nut.

In the catch frame 6, a clamp arm 7 is rotatably supported by a support shaft 22 in a central space in the longitudinal direction, and a hook portion 7 formed below the holding surface 6a of the catch frame 6 and the clamp arm 7 is provided. a clamping means for sandwiching the rail 8 from both sides in the width direction with the a facing each other. However, the hook 7a is formed in a bifurcated shape (not shown) so that it does not become an obstacle for the forward movement of the cutter 2 described later.

One rail at the upper center inside the holding surface 6a of the catch frame 6 The headrest 9c is fixed inward, and a height gauge 10 is detachably fixed below it. As shown in FIG. 1 or FIG. 2, the fixing of the height gauge 10 is carried out in four through holes 6 b, 6 b... Formed in the holding surface 6 a of the catch frame 6. This is done by inserting bolts 10c, 10c ... from outside of a and screwing into the screw holes 10a, 10a ... drilled at the four corners of the height gauge 10.

As shown in Fig. 5, the height gauge 10 has the strength of the screw holes 10a, 10a ... for fixing as described above, and two rail pads 9a, 9a at the lowest position. Are fixed in parallel at an interval, and a through hole 11 is formed substantially at the center. In addition, the height gauge 10 is provided with a plurality of screw holes 12, 12,... Depending on the type of railway rail, and each of the screw holes 12, 12,. Before drilling, select screw holes 1 2 and 1 2 ... according to the rail to be drilled, and fix the bolts 9 on the two rail supports 9 b and 9 b. Insert d and 9 d and screw them in parallel.

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 has a force for advancing in a direction perpendicular to the railway rail 8. Thread the clamp screw 14 with a rotating handle 14a vertically aligned with the shaft center of the screw thread vertically downward, and screw the lower end 14c into the countersunk hole 21 of the pitch gauge 20 described later. ^ ", The clamp arm 7 is pivoted about the support shaft 22 to press and hold the hook 7a against the rail abdomen 8a, and at the same time the rail 8 is vertically and horizontally at a right angle. Hold strongly.

When the railroad rail 8 is clamped by such a clamping means, as shown in FIG. 2, the rail jaw 8 b is supported by the rail jaw supports 9 b and 9 b for tightening the clamp screw 14. Then, the bearing position of the rail jaw 8b can be determined. The distance H2 to the drilling center 2c can be determined. As described above, in the present invention, the perforation height H1 from the bottom surface of the railway rail 8 is set by selecting the mounting position of the rail jaw 8b.

Also, as shown in FIG. 3, the rail support position and direction are indicated by arrows, and the rail abdomen 8a is supported at two points in the horizontal direction by the rail abutments 9a and 9a. The chin rests 9 b, 9 b support the rail jaw 8 b at two points in the horizontal direction, and the rail head support 9 c supports the side of the rail head 8 c at one central point, but the rail bellows 9 a, 9a and rails 9b, 9b, and rail head 9c have a uniform length such that the holding surface 6a of the catch frame 6 is perpendicular to the rail 8 Keep it.

However, as shown in Fig. 2, the lower end 14c of the clamp screw 14 is arranged so that its vertical line is located substantially at the center of the support between the rail belly pad 9a and the rail jaw receiver 9b. By doing so, it is possible to stably tighten the clamp screw 14.

As shown in FIG. 4, the pitch gauge 20 is mounted on the upper surface of the railway rail 8 so that the end surface 20 c of the pitch gauge 20 is aligned with the end surface 8 d of the railway rail 8. A clamping piece 20a that can fit the width of the railway rail 8 from above is fixed to one side, and a screw 20b having a butterfly-shaped fastening piece is provided on the side of the clamping piece 20a. The side of the rail head 8c can be tightened. Then, countersunk holes 21, 21,... Are provided on the flat surface of the pitch gauge 20 with reference to the end face 20 c, corresponding to the positions of the bolt holes 13. Two countersinks 2 1, 2 1… are provided in the width direction, and the lower end 14 c of the clamp screw 14 is attached to the countersinks 2 1, 2 1… from any width direction of the rail 8. Make sure it can be fastened.

Railway rail force to be repaired ^ In the case of Shinkansen rail 8 ', the pitch gauge for Shinkansen rails is the same as the pitch gage 20 described above, which is fitted with its end face 29c. Prepare 20 'and place it on the top of the rail with its center 29c aligned with position 29 corresponding to the crack in the rail. Also in the pitch gauge 20 ′ for the Shinkansen rail, the countersinks 21, 21,... Can be provided in the same manner as described above, and can be clamped in the same manner as described above.

Further, a holding plate 1-5 is fixed to the rear ends of the two slide shafts 5, 5 behind the body case 1, and a rotation handle 16a is provided between the holding plate 15 and the body case 1. The fixed link mechanism 16 is fixed.

Then, the main body case 1 is moved back and forth by turning the handle of the link mechanism 16, and the force cutter 2 attached to the output shaft 4 is advanced through the bifurcated portions 7 a of the clamp arm 7, whereby the rail is moved. A bolt hole 13 is formed in the abdomen 8a at a predetermined height and a predetermined pitch. In addition, 25 and 26 are drilled? This handle is used to carry the machine, and is fixed behind the body case 1 and in front of the clamp case 6.

At the time of this drilling work, the rail jaws 9b, 9b are attached to the predetermined screw holes 12 and 12 according to the type of railway rail, and the drilling height of the bolt holes 13 is set in advance. Then, for each countersunk hole 21 of the pitch gauge 20 attached to the upper surface of the railroad rail 8, tighten the clamp screw 14 and rotate the cutter 2 to rotate and advance the rail 2 to provide one bolt hole 1 for the rail abdomen 8a. After drilling 3, loosen the clamp screw 14, move to the next countersunk hole 21, tighten it, and drill a predetermined number of holes to obtain the bolt holes 13 of the specified pin, sochi and so on it can.

Also, after drilling, the core inside the cutout 2 is pulled out by the pushing force of the center pin 4c by the coil panel 4b, but the cutout may not be pulled out only by this wrench due to wear of the cutter 2. In such a case, the tip of the pliers 30 is inserted from the outside of the through-hole 11 of the height gauge 10, and is pulled out while sandwiching the outer periphery of the core in the cutter 2. Industrial applicability

As described above, the railway rail punch according to the present invention fixes the rail jaws at predetermined positions of the height gauge according to the type of railway rail to be drilled, and also sets the pitch gauge at a predetermined position on the upper surface of the railway rail. By simply tightening one clamp screw in the countersunk hole of this pitch gauge, the drilling machine can be firmly fixed vertically and horizontally at right angles and at the same time, the drilling position of the bolt hole is pitch and height. Both can be set. After such setting of the drilling machine, the drilling operation can be performed only by moving the rotating cutter forward with the rotating handle.

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

Claims

Ranging drive source 3 of drilling force monitor 2 is fixed in body case 1 with output shaft 4 protruding outward, and rotation drive source 3 is arranged at the center. Slide shafts 5 and 5 are juxtaposed on both sides of the main body case 1, and the clamp arm 7 is rotated with respect to a catch frame 6 fixed to both ends 5a and 5a of the slide shafts 5 and 5 on the output shaft side. Clamp means having a structure of freely pivotally supporting and holding the rail rail 8 from both sides in the width direction by opposing the holding surface 6 a of the catch frame 6 and the forked hook 7 a below the clamp arm 7. On the inner side of the holding surface 6a of the catch frame 6, a rail head rest 9c is fixed inward, and a height gauge 10 having a through hole 11 formed substantially at the center is bolted to secure the height. 9a and 9a are arranged side by side with a space between two rails on the height gauge 10. At the same time, the rail jaws are set so that the drilling height of the bolt hole 13 specified for each railway rail is set by the mounting positions of the two rail jaws 9 b and 9 b with respect to the height gauge 10. Various screw holes 12, 12,... For engaging 9 b, 9 b are provided, and the end face of the rail rail 8 according to the pitch specified for each rail rail of the bolt hole 13. Alternatively, a pitch gauge 20 provided with a plurality of countersunk holes 21 with reference to a predetermined position is detachably attached to the upper surface of the railway rail 8 to be drilled, and a screw cylinder at the upper end of the clamp arm 7 is provided. Screw the clamp screw 14 with the rotating handle 14 a vertically into 7 b and screw it vertically downward to match the axis of the force plate 2, and the lower end portion 14 c of the clamp screw 14 in front Position the clamp means by tightening it to the specified countersunk hole 21 on the piercing edge 20. At the same time, the railway rail 8 is vertically and horizontally strongly pressed by the clamp means at a right angle, and a holding plate 15 is fixed to the rear end of the slide shafts 5, 5. Previous Between the main body case 1 and the holding plate 15, a link mechanism 16 with a rotating handle 16 a for advancing and retracting the main body case 1 with the holding plate 15 as a fulcrum is interposed. A predetermined bolt hole 13 is formed at a predetermined height and pitch of the rail abdomen 8a by advancing the cutter 2 attached to the output shaft 4 by turning the handle 6. Railway rail drilling machine.