WO2002030602A1

WO2002030602A1 - Rail drilling device

Info

Publication number: WO2002030602A1
Application number: PCT/JP2001/008967
Authority: WO
Inventors: Masami Yoshida; Tadayoshi Kohori
Original assignee: Kohori Tekkou Kabushiki Kaisha
Priority date: 2000-10-13
Filing date: 2001-10-12
Publication date: 2002-04-18
Also published as: JP3873190B2; JPWO2002030602A1; KR20020029594A

Abstract

A rail drilling device, comprising a rail front retainer (15) having a slide tube (25) slidably inserted into the through hole of a frame front wall (12), a female screw member (30) threaded with the slide tube (25) so that the longitudinal end part thereof is projected, and an abut-on member (48) installed at the rear end part of the female member (30) to abut on the web part of a rail (R), wherein, when the slide tube (25) is moved rearward and rotated, the forward return of the slide tube (25) is stopped and then, when the female screw member (30) is tightened, a frame (11) is fixed to the rail (R).

Description

Description Rail drilling equipment '' Technical field

The present invention relates to a rail punching device for punching a railway rail.

'' Background technology

A machine frame that is inverted U-shaped when viewed from the side and has a drill advance / retreat opening on the rear wall, and a boring machine body that is movably mounted behind and behind the rear wall of the machine frame And a feeding device for moving the drilling machine body back and forth, a rail rear presser provided on the front wall of the machine frame, a rail head presser provided on the top wall of the machine frame, and a The front wall is provided with a rail front retainer provided to be able to move forward and backward.When the rail rear retainer is applied to the rear of the rail and the rail head retainer is applied to the rail top surface, respectively. First, move the rail front presser to fix the machine frame to the rail by applying it to the front of the rail, and then move the drilling machine forward by the feeder to level the rail. A rail drilling device for drilling a through hole is conventionally known. In this conventional rail drilling apparatus, the rail front presser is generally of a clamp type that can be pressed against the abdomen of the rail by operating a lever.

With this type of drilling machine, if the fixing force of the machine frame to the rails is weak due to the force of drilling hard special steel rails, the body of the drilling machine will vibrate slightly during drilling. Spill The problem arises. On the other hand, if the rail front clamp is of a clamp type, it is difficult to increase the tightening pressure, and tightening by a screw with a high tightening pressure is required. However, when the screws are tightened, there is a problem that the stroke of the screws becomes longer, and it takes time and trouble to tighten the screws.

Further, as a feeding device of the drilling device, for example, a pair of left and right guide shafts provided protrudingly on the machine frame and having a rack formed thereon, and a rotatable and longitudinally movable main body of the drilling machine. A pinion that is impossibly supported and engaged with the rack of the inner shaft, and that the pinion 0 moves forward and backward along the rack to move the drilling machine body back and forth. Movement is known.

In such a feeding device, the engagement between the pinion and the rack has a slight play, so that when the fixing force of the machine frame to the rail is weak, the drilling machine is not pierced at the time of piercing. The main body vibrated minutely, and as a result, if the drill spilled, there was a problem.

An object of the present invention is to increase the tightening pressure by enabling a screw when holding the rail, and to reduce the time and effort required for the tightening. The present invention provides a drilling device capable of preventing micro drilling and vibration of the drilling machine main body and reducing drill spillage.

(D) Another object of the present invention is to provide a drilling device capable of reducing drill spillage by enabling feeding using a screw mechanism. It is in. 5 Disclosure of the invention

The drilling device according to the present invention has an inverted U-shape when viewed from the side and A machine frame provided with a drill advance / retreat opening in the rear wall, a drilling machine body movably mounted on the rear wall rear of the machine frame, a feed device for moving the machine body back and forth, and a machine frame Rear rail retainer provided on the front wall of the rail, rail head retainer provided on the wall of the machine frame, and rail front retainer provided on the front wall of the machine frame to be able to move back and forth. The rail back presser is applied to the rear of the rail, the rail head presser is applied to the top of the rail, and the rail front presser is moved to contact the front of the rail. After fixing the machine frame to the rails, the drill punch body is advanced by the 0 feeder to make a horizontal through-hole in the rail. Slidable through the horizontal through hole in the front wall of the machine frame A slide tube inserted so as to be able to slide, a male screw member screwed so that the front and rear ends protrude from the slide tube, and movable back and forth with respect to the same tube; It has a contact member that is provided at the rear end of the threaded member 5 and that abuts against the abdomen of the rail.The contact member is provided at the front end of the slide cylinder and at the front of the machine frame front wall. A stopper is provided to stop the slide cylinder from moving rearward, and a stopper is provided between the slide cylinder and the horizontal through hole 揷 for the slide cylinder on the front wall of the machine frame. A lock means is provided to prevent the slide cylinder from returning to the front when the slide cylinder whose rotation has been prevented by the pa is rotated 0 is rotated. Things.

According to this rail drilling device, the rail back holder is applied to the rear of the rail, the rail head holder is applied to the top of the rail, and the rail front holder is moved. The frame is fixed to the rail by contacting it with the front of the rail. 02 3

(4) For the rail front retainer, move the slide cylinder until the stopper comes in contact with the front wall of the machine frame, and then rotate the slide cylinder and stop returning it. However, it is only necessary to tighten the male screw member. Therefore, since the stroke for tightening the screw is small, time and labor are saved, and since the screw is tightened, a sufficient tightening force can be obtained. .

The left and right slide shafts that slide through the horizontal through holes provided on the left and right of the horizontal through holes for the slide cylinder on the front wall of the machine frame, It further has an elastic member that biases the slide shaft forward, and the contact member includes a connecting plate that connects the rear ends of the left and right slide shafts, and a connecting plate. It consists of a pair of left and right protrusions provided on the rear surface of the screw member, and the tip end of the screw member is connected via a thrust torsion, preferably against the front surface of the connection plate. New By doing so, the connecting plate moves rearward without rotating by tightening the thread member, and the left and right protrusions are tightened by tightening the male screw member. It hits the abdomen of the rail, so that the 'machine on the rail' frame can be securely fixed.

The stopper at the front end of the slide cylinder is provided with a radial hole reaching the outer circumference of the male screw member, into which a ball urged inward in the radial direction by an elastic member is fitted. It is preferable that a groove is provided in the outer periphery of the male screw member so that the ball can be fitted therein. In this way, when the screw member is rotated, the groove of the screw member and the ball are fitted, and thereafter, the screw member and the slide tube are connected. As a result, the slide cylinder is stopped from returning by the locking means 5. The rearward movement of the slide cylinder is performed by the stopper. Because they are blocked As the screw member is rotated, only the male screw member moves rearward, and the tightening is completed.

Various configurations are possible for the locking means.For example, for example, a cylindrical shape in which the horizontal through-hole for passing through the slide cylinder on the front wall of the machine frame has a slightly larger diameter than the outer diameter of the slide cylinder. The slide guide is formed by fitting the slide guide into the large-diameter through-hole, and the locking means includes a protrusion provided on the outer periphery of the slide cylinder and a slide guide. The guide groove is provided on the inner periphery of the slide guide and guides the protrusion in the longitudinal direction, and the recess for receiving the protrusion is provided on the front surface of the slide guide so as to be continuous with the guide groove.

The rail head retainer is a screw member whose tip is applied to the head surface of the rail by being screwed and screwed into a vertical thread part provided on the top wall of the machine frame. 'Also, the rail head holder is provided on the top wall of the machine frame, so that it can be detachably attached to the screw part 5 from below, screwed down and adapted to the rail height: ^ A male screw member having a protruding amount may be used. The former has the advantage that it can be accommodated by adjusting the screwing amount of the external thread member when the rail height changes, and the latter has the advantage that the rail height changes when the rail height changes. The use of a 0-bolt member having a different downward protruding amount has the advantage that the need for a screwdriver operation when changing the drilling position can be eliminated.

Further, in this rail drilling device, the feed device is screwed into the feed nut and the feed nut supported on the fixed base so as to be immovable in the axial direction and rotatable around the axis. Feed screw integrated into the drilling machine body, parallel to feed nut and rotatable It is preferable to have a drive shaft supported by a fixed base portion, a drive gear fixed to the drive shaft, and a driven gear engaged with the drive gear and fixed to the feed nut. . According to this feeder, when the drive shaft is rotated, the driven gear engaged with the drive gear is rotated, and the feed nut is rotated. Since the feed nut is supported so as not to move in the axial direction and to be rotatable around the axis, the feed screw screwed to the feed nut advances with the rotation of the feed nut. Or retreated. In this way, transmission using a screw mechanism becomes possible. Feeding using the screw mechanism has less rattling than the feeding of the pinion and the rack. Is eliminated. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a side view of a punching device according to the present invention.

FIG. 2 is a cross-sectional view taken along line 2-2 in FIG.

FIG. 3 is a cross-sectional view taken along line 3-3 in FIG.

FIG. 4 is a rear view of the punching device according to the present invention.

FIG. 5 is a longitudinal sectional view of the punching device according to the present invention, and shows a state before the rail front presser is moved.

FIG. 6 is a longitudinal sectional view showing a state in which the rail front presser is slid following the state of FIG.

FIG. 7 is a longitudinal sectional view showing a state where the rail front retainer is rotated following the state of FIG.

FIG. 8 is a longitudinal sectional view showing a state where the rail front retainer is tightened following the state of FIG. FIG. 9 is a sectional view taken along the line 9-1 in FIG. .

FIG. 10 is an enlarged longitudinal sectional view showing the feeding device.

FIG. 11 is a side view showing another embodiment of the punching device according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In this specification, “forward” means the direction of travel, and the left side is forward. In other words, the right in Fig. 1 is the front, the left is the rear, the top in Fig. 2 is the left, and the bottom is right. .

The perforating apparatus according to the present invention has an inverted U-shaped machine frame (11) as viewed from the side including a front wall (12), a rear wall (13) and a top wall (14) with a handle (14b). ), A pair of left and right guide shafts (5) provided on the rear wall (13) of the machine casing (11) so as to protrude rearward, and a drilling machine movably mounted on the guide shafts (5) so as to be movable back and forth. A main body (1), a manual feeding device (10) provided behind the drilling machine body (1) to move the drilling machine body (1) back and forth, and a machine frame

(11) The rear wall (13) is fixed to the rear rail holder (16) provided on the front face and the vertical through-thread (14a) provided on the top wall (14) of the machine frame (11). The rail head holder (21) and the front wall of the machine frame (11)

(12) The rail front retainer (15) provided to be able to move back and forth, and the distance from the rail (R) end face, which is provided at the upper end of the front wall (12) of the machine frame (11). And a positioning gauge (18) provided with a scale as shown in the drawing. The rail back holder (16) is applied to the rear of the rail (R), and the rail head holder (21) is screwed. Turn to hit the top of the rail (R), and then press the rail front presser (15) After the machine frame (11) is fixed to the rail by moving it toward the hole (R), that is, rearward and hitting the front of the rail (R), the boring machine body (1) is manually operated. It is advanced by the feeding device (10) to make a horizontal through hole at a predetermined distance from the end face of the rail (R).

The drilling machine main body (1) is a well-known one, and includes a vertical cylindrical section (2a) having a built-in drive mechanism such as a motor and gears, and a horizontal cylindrical section in which an output shaft (4) is rotatably supported. Case (2) consisting of the part (2b) and the left and right slides which are provided integrally on the left and right sides of the case (2) and are freely inserted into the left and right guide shafts ( ⁵ ). The drill (4) attached to the output shaft (4) rotates the drilling machine (1) to the guide shaft (5) while rotating the drill (4a) attached to the output shaft (4). Drilling is performed by advancing along.

A longitudinal female screw is provided at the front end of the guide shaft (5), and as shown in FIG. 2, the through hole (5) passes through the stepped hole (13b) of the rear wall (13) of the machine frame. When the bolt (17) is screwed into this screw, the guide shaft (5) is detachably attached to the rear wall (13) of the machine frame (11). I have.

The rail back retainer (16) is a square pillar and is arranged one immediately inside the left and right guide shafts (5>.) The rail rear retainer U6) is connected to the head and bottom of the 0 rail (R). The upper and lower ends are provided with tapered portions corresponding to the taper of the head and bottom of the rail (R). Have been. As shown in Fig. 2, the rail back retainer (16) is provided with a through hole with a counterbore. A bolt with hexagonal hole (19) that passes through the through hole for 5 mm is provided. By being screwed into the female thread of the rear wall (13), the rail rear presser (16) is attached to the machine frame (11). Removably mounted.

The positioning gauge (18) is provided at the end of the cylindrical shaft portion (18a) that is loosely inserted into the left and right through holes in the machine frame rear wall (13), and is applied to the rail (R) end surface. It is a square head (18b). The shaft (18a) is provided with a scale indicating the distance from the head (18b). The shaft (18a) also has a guide shaft function for moving the entire machine frame (11) in the left-right direction. The head (18b) of the positioning gauge (18) is connected to the rail (K) end face. After moving the drilling machine body (1) to the left and right based on the scale of the shaft (18a) along with the machine frame (11), the drilling machine (1) is positioned at a predetermined distance from the rail (R) end face. Can be perforated. The positioning gauge (18) can be fixed to the machine frame (11) by tightening the gauge fixing bolt (20) screwed into the upper part of the machine frame rear wall (13). it can.

The rail head holder (21) has a prismatic head, and a handle (22) that penetrates the head in the horizontal direction is provided on the head. The tip (lower end) of the rail head holder (21)) is formed in a round shape, and the machine frame (11) is moved while the lower end is in contact with the top surface of the rail (R). Can be done. The rail head retainer (21) is locked by a lock nut (23) and can be locked.

As shown in Fig. 2, the front wall (12) of the machine frame (11) is provided with a large-diameter horizontal through-hole (12a) at the center, and on both sides of the large-diameter through-hole (12a). A small-diameter stepped horizontal through hole (12b) is provided. A cylindrical slide guide (24) is fitted and fixed in the large-diameter horizontal through-hole (12a).

Rail front retainer (15) slides into slide guide (24) A slide cylinder (25) that is inserted so as to be rotatable and rotatable, and is screwed so that the front and rear ends protrude from the slide cylinder (25) and can be moved back and forth with respect to the same cylinder (25). A connecting plate (34) with a projection (48) provided on the rear end of the screw member (30) and the screw member (30) and brought into contact with the abdomen of the rail (R) , A left and right slide shaft (32) slidably inserted into the small-diameter stepped horizontal through hole (12b), and a compression coil spring (32) for urging the slide shaft (32) forward. (Return spring) (33)

On the inner circumference of the slide guide (24), there are 0 upper and lower guide grooves (41) extending over the entire length thereof, and a projection storage HO place (42) connected to the rear end of the guide groove (41) and extending in the circumferential direction. Are provided. As will be described later, the projection accommodating recess (42) serves as an engagement recess of the detent locking means of the slide cylinder (25).

The slide cylinder (25) is provided at the middle in the longitudinal direction and is fitted into the upper and lower guide grooves (41) of the slide 5 guide (24) so as to be movable back and forth. ³ ) i: A substantially rectangular flange (44) provided at the front end and serving as a stop which comes into contact with the front of the machine frame front wall (12) when sliding backward. It is provided from the front end of the circumference to near the rear end, and has screws and. '

0 While the upper and lower protrusions (43) are fitted in the guide grooves (41), the slide cylinder (25) cannot rotate, but these protrusions (43) cannot be rotated. When it is moved to the rear end of (41), the protruding storage recess (42) is provided here, so that the slide cylinder (25) is within the range of this recess (42). It becomes rotatable. As shown in FIG. 9, the concave portion (42) has an arc-shaped bottom surface connected to the arc-shaped bottom surface of the guide groove (41), an outer surface parallel to the side surface of the guide groove (41), and a guide. Groove (4 When the slide cylinder (25) is moved to the rearmost position and then rotated, the projection (43) is in the recess (42). (Moved from the state shown by the dashed line to the state shown by the solid line in the figure), and when the peripheral surface of the projection (43) hits the outer surface of the recess (42), further rotation is prevented. In particular, the front surface of the projection (43) hits the vertical surface of the recess (42), preventing the slide tube (25) from returning to the front.

The flange (44) is provided with a radial thread (44a) reaching the outer periphery of the male screw member (30). The thread (44a) is connected to the pole (26a). Further, a ball plunger (26) composed of a spring (26b) for urging the ball inward in the radial direction is fitted and fixed with a screw (27). The outer periphery of the male screw member (30) is provided with a groove (30b) extending in the circumferential direction of a V-shaped cross section in which the ball (26a) can be fitted. At the front and rear ends of the inner periphery of the slide guide (24), seals (28) and (29) are provided to prevent foreign substances from entering between the slide guide cylinder (25). . '

The connecting plate (34) connects the rear ends of the left and right slide shafts (32) to each other. The connecting plate (34) is used to fix the slide shaft (32). Left and right screw holes, and a central screw hole at the center of the center where a connection pin (35) for connecting the 0 connection plate (34) and the screw member (30) is screwed. ing.

The thread member (30) is provided with a thread from the front end of the outer periphery to near the rear end. The front end of the thread member (30) is provided with a square 'head = spanner hook (30a), and the spanner hook (305a) is used to hold the rail front that passes through it. Handles (45) are provided. At the end of the male screw member (30), A thrust bolt (31) forming the tip of the screw member (30) is screwed onto the screw member (30). The thrust ponole (31) has a hexagonal plate-shaped head, and has a through hole extending in the axial direction. Scan Las Doo bolt (31) head of the rear surface i.e. the external thread of the -. Member (30) the tip of the scan La be sampled watts coupling play and through the petri (3 7) bets ⁽³ 4) It is on the front.

The connecting pin (35) connects the connecting plate (34) and the screw member (30) such that they move integrally in the front-rear direction, so that the center of the connecting plate (34) is provided. The large-diameter thread of the connecting pin (35) is screwed into the screw hole, and the thrust port (31) is fitted into the small-diameter shaft of the connecting pin (35). (36). Further, since the thrust washer (37) is interposed between the thrust bolt (31) and the connecting plate (34), the screw member (30) When the thrust bolt 5 (31) is rotated, the thrust bolt 5 (31) rotates integrally with the thrust bolt 5 and moves forward. As a result, the connecting plate (34) moves back and forth without rotating. One

The slide shaft (32) is cylindrical and has a flange (46) near its front end, and a hexagonal column (48) with a pointed tip at its rear end. The hexagonal columnar portion (48) is provided with a screw portion (47) at the base end thereof. The flange (46) is formed by snap ring. Scan line de shaft ⁽³ 2) is off La Nji (4 6) is inserted from behind into the provided Getting Starte state consolidated flop rate (34), stepped through hole of the machine frame front wall (12) (12b) Loosely fit into the connection plate (34) by screwing its thread (47) into the left and right thread holes of the connection plate (34). I have. As a result, the hexagonal column with a sharp tip 8) It is projected from the rear surface of the connecting plate (34) as a projection which is brought into contact with the portion. The hexagonal column-shaped projections (4δ) of each slide shaft (32) are located at positions opposing the rail back presser (16), whereby the screw member (30) Rotational moment is not generated during tightening. One end of the return spring (33) is received by the stepped portion of the small-diameter stepped horizontal through hole (12b) of the machine frame front wall (12), and the other end forms a flange (46). It is received by the spring, so that the rail front pusher (15) is always urged forward.

0 The manual feeding device (10) is provided with a storage box (fixed base) (51) that is stopped between the rear ends of the left and right guide shafts (5), and cannot move in the axial direction. The feeding nut (52) supported at the lower part of the storage box (51) so as to be rotatable around the axis, and the punching machine body U) screwed to the feeding nut (52) An integrated feed screw (53), a drive shaft (54) supported parallel to the feed nut 5 (52) and rotatably supported on the upper part of the storage box (51); A drive gear (55) fixed to the shaft (δ4), a driven gear (56) engaged with the drive gear (55) and fixed to the feed nut (52), and a drive shaft (55). And a feed nozzle (57) for rotation.

0 The storage box (51) has left and right overhangs, which are fixed to the rear ends of the left and right guide shafts (5). The feed nut (52) has an axis located at the center of the left and right guide shaft (5). The feed nut (52) has a stepped outer peripheral surface. That is, both end portions (52a) are the minimum diameter portion, the intermediate diameter portion (52b) is provided adjacent to the front five end portions, and the maximum diameter portion is provided between the rear end portion and the intermediate diameter portion (52b). A portion (52c) is formed. Both ends of the feed nut (52) are provided at the lower portion inside the storage box (21) and are fitted to both ends ^ (52a) of the feed nut (52). ), Whereby the feed nut (52) is immovable in the axial direction and is rotatable around the axis. "

The feeding screw (53) is formed longer than the feeding nut (52), and its front end is fixed to the rear end of the horizontal cylinder (2b) of the drilling machine ^ (1). I have.

The drive shaft (54) is arranged at the upper part in the storage box (51) so as to be located directly above the feed nut (52), and cannot be moved in the axial direction and rotates around the axis. Both ends are supported by bearings (59) so that they can rotate. The rear end of the drive shaft (54) protrudes rearward from the storage box (51), and the handle (57) for feeding is mounted here.

The movement of the drive gear (55) in the axial direction consists of the bearing (59) and the drive shaft (5

It is blocked by the flange (54a) provided in 4).

The driven gear (56) has a central hole equal to the outer circumference of the intermediate diameter portion (52b) of the feed nut (52), and is fitted from the end side of the feed nut (52). The feed nut (52) is attached to the feed nut (52) by being moved until it reaches the maximum diameter portion (52c) of the feed nut (52). Movement of the driven gear (56) outward in the axial direction is prevented by the bearing (58) of the feed nut (52). The driven gear (56) has a larger diameter (greater number of teeth) than the drive gear (55).

Drilling by this rail drilling device is performed as follows. First, cover the machine frame (11) on the rail (R) and press the rear of the rail. ( ¹⁶ ) is applied to the rear part of the rail (R), and then the rail head holder (21) is screwed into contact with the top of the rail (R). Then, place the head (18b) of the positioning gauge (18) on the end face of the rail '(R), move the machine frame (11) to the position to be drilled, and tighten the gauge fixing bolt (20). . In addition, tighten the lock nut (23) of the rail head holder (21) (as shown in Fig. 5). Next, the rail front retainer (15) is moved to contact the front of the rail (R) to fix the machine frame (11) to the rail (R). To move the rail front pressed to give a (15), firstly, is moved to scan line de tube (25) its flange (be sampled collar) (44) abuts against the machine frame front wall (I ²⁾ (Figure 6). Next, the slide cylinder (25) is rotated to stop returning to the front (the state shown in Figs. 7 and 9). The slide tube (25) can be moved back and forth and rotated by operating the handle (45) for holding the rail front of the screw member (30). . When the screw member (30) is rotated, the ball plunger (26) fits into the groove (30b) of the male screw member ('30) as shown in FIG. Only the screw member (30) is prevented from rotating, and the male screw member (30) and the slide cylinder (25) rotate integrally. Finally, tighten the thread member (30) (as shown in Fig. 8). At this time, the projection (43) of the slide cylinder (25) is rotated by the slide guide.

It is prevented by fitting into the recess (42) of (24), and only the screw member (30) is turned by turning the handle (45) for holding the front part of the rail. It rotates, and the male screw member (30) moves backward (approaching the Raynole (R)). Accordingly, the connecting plate (3 ⁴ ) 5 approaches the rail (R). Finally, by rotating the spanner hung on the spanner hook (30a), the machine frame (11) It is fixed to the rail (R) by the tightening force of. Thereafter, when the drive shaft (54) is rotated in the forward direction by the feeding handle (57), the driven gear (56) meshing with the drive gear (55) rotates, and the driven gear (56) rotates. The feed nut (52) fixed to the gear (56) is rotated. The feed nut (52) is supported so as not to be movable in the axial direction and rotatable around the axis, so that the feed nut (5) is provided.

With the rotation of 2), the feed screw (53) screwed to the feed nut (52) is advanced. In this way, the drilling machine main body (1) advances by feeding using the screw mechanism, and is drilled at a predetermined position on the rail (R). If the feeding handle (57) is rotated in the reverse direction, the drilling machine body (1) is retracted by the feeding using the screw mechanism.

When one drilling is completed, first, the screw member (30) of the rail front presser (15) is rotated in a direction to loosen. In conjunction with this, the slide tube (25) also rotates, and the protrusion (4) of the slide tube (25) is rotated.

3) exits from the detent recess (42) of the slide guide (24) and enters the guide groove (41) of the slide guide (24). Since the slide shaft (32) is urged by the return spring (33), the male thread forest (30) moves forward along with the slide cylinder (25). To drill holes at a specified pitch in the direction of the length of the rail (R), in addition to the gauge fixing bolt (20) that fixes the positioning gage (18), press down the rail head (21). ), Loosen the locknut (23), move the machine frame (11) to the next position to be drilled, and then drill in the same procedure. '

5 In the above operation, the rail back presser (16) is changed according to the dimensions of the rail (R), and the rail head presser (21) is It is positioned so as to press the center of the top of (R). Also, the rail front retainer (15) is positioned sufficiently forward when not drilling so that it does not become an obstacle when the machine frame (11) is put on the rail (R). Therefore, the stroke of the rail front presser (15) up to the rail (R) is longer, but after the slide cylinder (25) is slid, the screw member ( 30), the stroke of screw tightening is very small, and the time and labor for fixing the machine frame (11) to the rail (R) can be greatly reduced. 5 shows another embodiment of the rail punching device according to the present invention. In the figure, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the rail drilling device of this embodiment, the rail head holding

The vertical female thread (62) to which the (61) is screwed does not penetrate the top wall (14) of the machine frame (11), and is opened from below on the top wall (14). And the rail head retainer (61) is

(62) is a screw member detachably screwed from below, and having a downwardly projecting amount corresponding to the height of the rail (R). The tip (lower end) of the rail head retainer (61) is rounded, and a hexagonal prism-shaped flange for attaching a spanner is provided in the middle of the rail head retainer (61). (61a) is provided. Their to tip or length at the off La Nji upper surface rail head pushed example from (61a) ⁽⁶ 1) is be configured so that by corresponding to the rail) of a predetermined size. Therefore, screw the rail head retainer (61) into the vertical female thread (62) and attach the upper surface of the flange (6 la) to the lower surface of the top wall (14) of the machine frame (11). The rail head is held down by contact The tip of (61) is positioned so as to correspond to the rail (R) of a predetermined dimension. Rail head retainer ⁽⁶¹⁾ is rail to the height of the (R) corresponds to a case formed into an odd, off 'La Nji portion (61a) the length to the upper surface or al destination end (downward projecting amount) There are several types that are different. As a result, once the required rail head retainer (61) is attached, there is no need to perform a screwdriver operation when drilling a rail (R) of the same dimensions.

The rail back presser (16) and the rail front presser (15) are the same as those in the first embodiment. Therefore, the rail rear presser (16) is attached to the rear of the rail (R). After the rail head retainers (61) are respectively applied to the top surfaces of the rails (R), the rail front retainers (15) are moved in the same manner as in the first embodiment. The machine frame (11) can be fixed to the rail (R) by applying it to the front of the rail (R).

An oil tank stand (63) on which the oil tank (64) is placed is provided on the section wall (14) of the machine frame (11). The Aburata tank (64) Ri Contact is being input is cutting oil, Ru oil this is supplied to the hose drill Le of the drilling machine body and through the ^{(65) (1) (4} a) '. The oil tank (64) can be moved along with the machine frame (11) along the rail (R) when performing the next drilling operation, so the oil tank (64) can be moved for each drilling operation. There is no need to move the (64) by hand, and the space for the oil tank (64) can be saved.

The top of the drilling machine body (1) is provided with a rain cover (66) and a handle (67). The rain cover (66) has a round washer (66a) interposed between its lower surface and the top surface of the vertical cylinder (2a) of the boring machine (1), so that the air inflow gap is reduced. Piercing Installed in the machine body (1). Rail drilling work is an outdoor operation, and it is easy to cause the problem that the motor stored in the vertical cylinder (2a) breaks down due to the intrusion of rain, but the rain cover (66) This prevents this problem.

As can be seen from Fig. 11, the height of the drill body (1) and the machine frame (1

The top position of the oil tank (64) placed on the top wall (14) of 1) is almost at the same level as that of the drilling machine body (1), the machine frame (11) and the oil tank (64). Drilling work can be performed in a state where <> is compacted.

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Industrial applicability

The rail drilling device according to the present invention is suitable for drilling railway rails made of special steel. Five

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Claims

The scope of the claims

1. A machine frame that is inverted u-shaped when viewed from the side and has a drill advance / retreat opening on the rear wall, and a drilling machine body that is attached to the rear of the machine frame behind the rear wall so that it can move back and forth. A feeder for moving the drilling machine back and forth, a rail back press provided on the front wall of the machine frame, a rail head press provided on the top wall of the machine frame, and a front wall of the machine frame. The front rail retainer is provided so that it can be moved back and forth. The rear rail retainer is applied to the rear of the rail, and the rail head retainer is applied to the top of the rail. After fixing the machine frame to the rail by moving the part presser 0 and applying it to the front of the rail, the drilling machine is fed forward by the feeder to make a horizontal through hole in the rail. In the drilling machine, the rail front retainer is installed on the machine frame front wall. The slide tube is slidably inserted through the horizontal through hole, and the slide ^ is screwed so that the front and rear ends protrude by 5 so that it can be moved back and forth with respect to the same tube. It has a screw member and a contact member provided at the rear end of the male screw member and abutting against the abdomen of the rail.

At the front end of the slide cylinder, a stopper is provided to abut the front of the machine frame front wall to prevent the slide cylinder from moving backward. When the slide cylinder, which has been prevented from moving backward by the stopper, is rotated between the slide cylinder and the edge of the horizontal through hole, the slide cylinder is moved forward of the slide cylinder. A rail punching device, characterized in that a locking means for preventing return of the rail is provided.

2. The right and left slide shafts, which are slidably inserted into the horizontal through holes provided on the left and right of the horizontal 5 through holes for sliding cylinders on the front wall of the machine frame, , Which urges the slide axis forward And a connecting plate connecting the rear ends of the left and right slide shafts, and a pair of left and right projections provided on the rear surface of the connecting plate. The rail drilling device according to claim 1, wherein a tip end of the thread member is brought into contact with a front surface of the connecting plate via a thrust washer.

3. A hole at the front end of the slide cylinder is provided with a radial hole reaching the outer periphery of the thread member, and a ball urged radially inward by an elastic member into this hole. 2. The 0-rail perforating apparatus according to claim 1, wherein a groove is formed on an outer periphery of the thread member so that the ball can be fitted therein.

4. The horizontal through hole for the slide tube through the front wall of the machine frame is used to fit a cylindrical slide guide having an inside diameter slightly larger than the outside diameter of the slide tube into the large diameter through hole. The locking means comprises a projection provided on the outer circumference of the slide cylinder and a lengthwise guide provided on the inner circumference of the slide guide for guiding the projection. 2. The rail drilling device according to claim 1, comprising a groove, and a projection storage recess provided on the rear surface of the slide guide so as to be continuous with the guide groove.

5. The rail head retainer is provided on the wall of the machine frame and is detachably screwed to the threaded portion with a lower cap. The male screw has a downward projection of 0 according to the rail height. The rail perforator according to claim 1, which is a member. ·

6.The feeding device is fixed to the fixed base so that it can not move in the axial direction and can rotate around the axis.It is screwed to the feeding nut and integrated with the drilling machine body. The driven screw, the drive shaft parallel to the feed nut 5 and rotatably supported by the fixed base, the drive gear fixed to the drive shaft, and the drive gear. The rail drilling device according to claim i, further comprising a driven gear fixed to the feed nut.

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