JPH0698571B2 - Railway rail cutting device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a rail rail cutting device used for cutting a rail when the rail is attached, if necessary.

[Conventional technology]

2. Description of the Related Art Conventionally, a device has been adopted in which a cutting grindstone is advanced and cut with respect to a railroad rail, or a cutting grindstone is moved in an arc to cut.

[Problems to be Solved by the Invention]

According to the conventional example, the cutting width of the cutting grindstone with respect to the rail, that is, the width of the cutting grindstone with respect to the cut end of the rail is determined by the forward direction or the rotating direction of the cutting grindstone, and thus the larger the cutting width is. It needs power.

The present invention has been made in order to eliminate such conventional drawbacks.

[Means for Solving the Invention]

In order to solve the above-mentioned problems, the railroad rail cutting device of the present invention is provided with a clamp device for detachably fixing the railroad rails at right angles to each other at the rear end of the guide rails, and is slidable along the guide rails. The tip screw portion of the screw rod is screwed to the base body provided in, and the operation handle is fixed to the rear end of the screw rod and pivotally attached to the stroke bracket applied to the rear end of the guide rail. While connecting the rotation fulcrum of the stroke handle to the side portion, and connecting the stroke handle and the stroke bracket through means for converting the rotation operation of the stroke handle into the linear reciprocating operation of the stroke bracket, A cutting arm having a cutting handle fixed thereto is vertically rotatably connected to the base body, and a tip end of the cutting arm is connected to a drive source provided on the base body. Than is provided a cutting grindstone that rotates.

[Action]

In the above-mentioned structure, the base body provided with the cutting grindstone which is rotated by power can be moved forward and backward along the guide rail, and the guide rail can be fixed to the rail rail by the clamp device.

In such a fixed state of the guide rail, by rotating the operation handle provided at the rear end of the guide rail, the base body can be moved along the guide rail, and the cutting grindstone can be moved forward and backward.

However, this operation is performed when aligning the cutting grindstone, and when the cutting grindstone is rotationally driven, that is, when cutting,
By operating the cutting handle with one hand, the cutting whetstone is rotated to draw an arcuate path in the up and down direction around the fulcrum of the cutting arm. The position of the cut edge of the cutting wheel with respect to the rail is changed to the forward and backward positions by advancing and retracting in the direction along the line.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 8 show an embodiment of the position of a rail rail cutting device according to the present invention. FIG. 1 is a side view and FIG.
The figure shows a side view of this cutting device mounted on a rail.
FIG. 3 is a perspective view showing a state in which the cutting device is carried along a rail, and FIG. 4 is a partially cutaway front view showing the periphery of the drive part of the cutting device and the attachment part of the cutting grindstone. FIG. 6 is a vertical cross-sectional view of a punching device attached to this cutting device, FIG. 6 is a partially cutaway plan view showing a mounting mechanism of a stroke handle and an operating handle at a rear end portion of a guide rail, and FIG. FIG. 8 is a front view of a holding portion of the rail.

Reference numerals 1 and 1 are a pair of guide rails composed of a rectangular hollow body (shown in FIG. 4). The guide rails 1 and 1 are connecting pieces 2 and 2'at both front and rear ends (shown in FIGS. 3 and 6). Are connected to each other by.

As shown in FIG. 3, reference numeral 3 denotes a support frame attached to the tip of the guide rail 1. A rotary shaft 4 is rotatably inserted in the support frame 3 and wheels are provided at both ends of the rotary shaft 4. 5, 5 and 5 are mounted, and rolling wheels 6 rolling on the rails a are mounted in the middle part.

As shown in FIG. 4, 7 is an upper substrate, 8 is a lower substrate,
A pair of pieces 7a, 7a, 8a, 8a are provided on the lower surface of the upper base 7 and the upper surface of the lower base 8, and the cutouts 7a ', 8a' provided on the pieces 7a, 8a are provided inside the guide rail 1. A bolt 9 that engages with the upper edge or the inner lower edge so that the upper and lower base bodies 7 and 8 face each other via the guide rail 1 and penetrates between the guide rails 1 and 1.
The parts 7a and 8a are slidably moved back and forth along the guide rail 1 by being connected to each other.

With these configurations, the upper base 7 and the lower base 8 can be moved back and forth along the guide rail 1 in a fixed state in which the upper base 7 and the lower base 8 are spaced from each other by the bolt 9.

As shown in FIG. 1, reference numeral 10 denotes an engine mounted and fixed on the upper base 7, and a pulley 11 is attached to the main shaft of the engine 10.

Further, a worm shaft 14 (shown in FIG. 4) laterally provided on the lower base body 8 via a bearing 13 is protruded from the lower base body 8, and a double pulley 15 is pivotally attached to the end portion of the double pulley 15. A large diameter portion 15a and a small diameter portion 15b are arranged in parallel and fixed at 15.

A first belt 16 is stretched around the pulley 11 and the large diameter portion 15a to transmit the rotational force of the engine 10 to the worm shaft 14.

In FIG. 4, a spindle worm 17 is engaged with a worm 14 ′ housed in the lower base body 8 of the worm shaft 14. The spindle worm 17 is connected to a punching device described later.

Further, 18 is a cutting arm, and this cutting arm 18 is fixed to a base portion 18 'which is rotatably provided on a protruding portion of the worm shaft 14 through a bearing 13'. The handle 20 is fixed, and by operating the cutting handle 20, the cutting arm 18 can be rotated in the vertical direction about the protruding portion of the worm shaft 14.

Further, 21 is a pulley attached to the upper end of the cutting arm 18 via a bearing 13 ″, and a second belt 16 ′ is stretched between the pulley 21 and the small diameter portion 15b of the double pulley 15 so that The rotational force of the engine 10 can be transmitted to the small diameter portion 15b and the pulley 21.

Reference numeral 22 is a grindstone shaft having a flange 22 ′ that rotates integrally with the pulley 21, and a cutting grindstone 24 is inserted into the central protruding portion of the flange 22 ′, and a sandwiching ring 23 is interposed on the cutting grindstone 24. The cutting whetstone 24 is detachably fastened to the whetstone shaft 22 by fastening the nut 25 to the threaded portion of the central protruding portion of 22 '.

With this configuration, the rotational force of the engine 10 is
11, the first belt 16, the large diameter portion 15b and the small diameter portion 15b of the double pulley 15, the second belt 16 ', and the pulley 21 are sequentially transmitted to the rotation of the cutting wheel 24. Moreover, the cutting grindstone 24 can be rotated about the fulcrum of the cutting arm 18 by operating the cutting handle 20 so as to draw a circular arc trajectory in the vertical direction.

Reference numeral 27 is a lock screw whose tip is screwed to the grindstone shaft 22, and the position of the grindstone 24 can be adjusted by operating the lock screw 27 as shown by the chain line in FIG.

In FIG. 5, a tapered chuck 29 is provided on the rear end side of the guide rail 1 of the spindle 28 to which the spindle worm 17 is attached, and a drill 30 is detachably attached to the chuck 29. It can be detached from the chuck 29 by an operation.

In FIG. 4, reference numeral 32 denotes a nut material projectingly provided on the lower base body 8, and the nut material 32 is located at an intermediate portion between the upper and lower base bodies 7 and 8.
The tip of a screw rod 33 is screwed onto the nut member 32.

Further, in FIG. 6 or FIG. 7, the screw rod 33 is inserted into the rear end of the guide rails 1 and 1 to penetrate the connecting piece 2 ', and is operated to the rear end of the screw rod 33 protruding from the connecting piece 2'. Handle 34
Is fixed.

With this configuration, when the operation handle 34 is rotated, the screw rod 33 rotates with respect to the nut material 32. And nut material
32 is fixed to the lower base 8, and the upper base 7 is connected and fixed to the lower base 8 by bolts 9.
Since the lower base body 8 and the lower base body 8 are slidably provided on the guide rails 1 and 1, the upper base body 7 and the lower base body 8 are guided along the guide rails 1 and 1 by rotating the operation handle 34. Made forward and backward.

Further, in FIG. 6 or 7, reference numeral 35 denotes a stroke bracket which is formed by having a central portion piece 35a and side pieces 35b, 35b on both sides.
One end of the guide rods 36, 36 is fixed to both ends of 35a, and each guide rod 3
Insert the other end of 6 into each guide rail 1 and then insert the guide rod 36
Of the receiving piece 37 fixed to one end of the connecting piece and the receiving piece engaging with the connecting piece 2 '
A coil spring 38 is interposed between 37 'and 37'. Therefore,
The stroke handle 42 is acted on by an elastic force that returns the stroke handle 42 to the engine 10 side when it is released.

On the side pieces 35b, 35b on both sides of the stroke bracket 35,
Each one end of the first link plate 39 is pivotally attached, the other end of the plate 39 is pivotally attached to the tip of the second link plate 40, and the base end of the second link plate 40 is installed on the guide rails 1 and 1. It is rotatably pivotally attached to a supporting piece 41 attached to the supporting substrate 41 '.

42 is a U-shaped stroke handle, both ends of which are attached to the second link plates 40 on both sides,
By operating this stroke handle 42, the first and second link plates 39, 40, the stroke bracket 35, and the screw rod.
The forward and backward movements of the upper and lower base bodies 7 and 8 along the guide rails 1 and 1 are performed via 33.

In FIG. 7, 43 is a first presser provided at the lower end of the support piece 41 toward the front, and 44 is a second presser. The second presser foot 44 is attached together with the third presser foot 47 to the vertical movement block 46 screwed to the bolt rod 45 suspended on the support piece 41, and the second presser foot 44 is the lower surface of the head a'of the railway rail a and the third presser foot. 47 presses the sides of the head a ', and the first presser 43 presses the abdomen a "of the rail rail a.

Further, the L-shaped lock arm 48 is rotatably supported by a support rod 49 installed on the guide rails 1 and 1 at an intermediate portion thereof, and a pressing screw 51 is screwed to a screw cylinder 52 of an upper piece 48a thereof. A lock handle 50 is provided on the upper part of the press screw 51 so that the lock handle 50 is rotated.
Rotate the lock arm 48 around the support rod 49, and
The protruding portion of b is pressed against the abdominal portion a ″ of the rail rail a from one side.

In FIGS. 1 and 3, reference numeral 53 is a carrying handle having both ends attached to the upper base 7, 54 is a cutting arm lock handle, and 55 is a pivot stand.

Use the cutting arm lock handle 54 when transporting the device.
Although the rotation of the cutting arm 20 is fixed by tightening, the rotation operation of the cutting arm 20 can be freely performed by releasing this when the rail is cut.

To summarize the operation related to the operation of the apparatus of the present embodiment having the above-mentioned configuration, the guide rails 1 and 1 of the apparatus are connected by the first presser foot 43, the second presser foot 44, the third presser foot 47, the lock arm 48, and the like. The guide rail 1 of the upper base 7 and the lower base 8 is fixed by rotating the operation handle 34 at a right angle to a.
Move forward and backward along 1 and adjust the position of the cutting wheel 24 or the drilling device (drill 30).
Is moved forward and backward by the rotation of the operation handle 34, but the cutting wheel 24 is moved forward and backward by the operation of the stroke handle 42 in the direction perpendicular to the rail rail a, and the cutting wheel 24 is moved vertically by the operation of the cutting arm 20. Rotate to swing the head.

The railroad rail cutting device A of the embodiment is handled as follows.

1) Carrying operation The stroke handle 42 is pivoted down to the position shown by the chain line in FIG. 1, and while the wheel 5 supports and rolls the cutting device A, the stroke handle 42 is pulled and moved to the vicinity of the nearest railroad rail. Then, as shown in FIG. 2, the Yamakoshi plate 19 is placed on the rail a, the cutting device A is rotated at a right angle, and then the rolling wheels 6 are moved as shown in FIG.
Is engaged with the rail rail a and is transported to the processing position of the rail rail.

2) Railway rail fixing operation After reaching the processing position, the cutting device A is detached from the rail a by the operation reverse to the above operation, and the guide rails 1 and 1 are placed in the direction perpendicular to the rail a to be processed. Then, as shown in FIG. 7, the first presser foot 43 is brought into contact with the abdomen a ″ of the railroad rail a and is made to correspond to the rail a. different)
The second presser foot 44 is placed on the bottom surface of the head a'and the third presser foot is operated by operating the operating portion 45 'of the bolt rod 45 to set the driven block 46 to a proper height.
47 are brought into contact with the side surfaces of the head a'and the lock handle 50 is operated to press the upper surface of the head a'of the rail a, while the pressing screw 51 is rotated so that the pressing piece 48b of the lock arm 48 is moved. The guide rails 1 and 1 of the cutting device A are fixed in a direction perpendicular to the rail a by pressing the side surface of the rail a that is opposite to the side surface of the abdomen a ″ of the rail a that is pressed by the first presser 43.

Although not shown in the drawings, a cutting device is installed in advance at the cutting position of the rail a, and one of the plurality of notches provided in the gauge is engaged with the tip of the pressing screw 51. There is also a direction in which the guide rail 1 of the cutting device A is fixed by performing the above-mentioned operation with A positioned.

3) Railway rail cutting operation While returning the stroke handle 42 to its original position,
As shown in the figure, the cutting grindstone 24 is attached to the shaft 22 by interposing the cutting grindstone 24 between the flange 22 ′ of the grindstone shaft 22 and the holding ring 23 and screwing the nut 25 onto the shaft 22. At this time, the position of the cutting grindstone 24 is adjusted by operating the lock screw 27.

Then, as shown in FIG. 1, the cutting handle 20 is tilted to the rail a side to bring the cutting grindstone 24 close to the rail a, and alignment with a predetermined cutting location is performed. At this time,
Although there is a case where the cutting grindstone 24 is separated from the rail a to make the positioning difficult, the positioning operation is accurately performed by moving the cutting grindstone 24 to a position where the cutting grindstone 24 is substantially in contact with the rail a by rotating the operation handle 34. It can be performed.

After that, the rotation of the cutting handle 20 is restricted by the cutting arm lock handle 54, and the engine 10 (in the embodiment, it is an engine, but may be a motor) is started. Next, the rotation control of the cutting handle 20 by the lock handle 54 is released, and the cutting arm 20 is operated by operating the cutting handle 20.
The turning movement of the cutting grindstone 24 about the fulcrum of 18, that is, the movement of drawing an arcuate trajectory in the vertical direction about the fulcrum of the cutting arm 18 is performed.

According to the operation of the cutting handle 20 as described above, the cutting grindstone 24 normally advances along the arc-shaped locus from the corner of the head a'of the rail a to advance the cut edge, but the cutting grindstone 24 gradually advances. Then, the cutting width increases, the friction with respect to the rail rail a increases, and the cutting speed decreases.

In such a case, in combination with the one-hand operation of the cutting handle 20, the stroke handle 42 is tilted forward or backward with the other hand to move the cutting wheel 24 forward or backward along the guide rails 1, 1. It is moved to change the position of the cut end with respect to the rail rail a. At this time, the cutting grindstone 24 hits the upper or lower end portion of the arc shape of the cut end, and the cutting width becomes minute. Then, when the cutting grindstone 24 is retracted (moving the cutting grindstone 24 above the rail head a ′) and in that state, the cutting grindstone 24 is advanced along an arcuate locus, the cutting width is expanded again. However, at this time, the stroke handle 42 is tilted forward (pulled toward the front), the cutting grindstone 24 is moved forward, the contact surface of the cutting grindstone 24 is shifted to the side of the rail head a ′, and the position of the cut end is changed again. Let

In addition, for a thin portion such as the rail abdomen a ″, the stroke handle 42 is not moved much back and forth, and
The cutting grindstone 24 is brought into contact with the rail abdomen a ″ from above by its own weight or the operation of the cutting arm 20 so that the cutting grindstone 24 is cut in the vertical direction.

In this way, the manual operation of the stroke handle 42 is used in combination with the manual operation of the cutting handle 20 for rotating the cutting wheel 24 in an arc shape, so that the cutting wheel 24 is moved forward and backward.

4) Drilling operation of the rail rail After the cutting work of the rail rail a, the cutting grindstone 24 is removed, the drill 30 is attached to the taper chuck 29, the engine 10 is started, and then the operation handle 34 and the stroke handle 42.
Is appropriately operated to perforate the abdomen a ″ of the rail rail a.

5) Others The carrying handle 53 can be used when the cutting device A is placed on a truck or the like.

〔The invention's effect〕

As explained above, the rail rail cutting device of the present invention,
It is detachably fixed to the rail by a clamp device,
Before cutting, the position of the cutting grindstone with respect to the rail to be machined can be accurately adjusted by the small structure in which the cutting grindstone is moved forward and backward by operating the operation handle.

Further, at the time of cutting, the operating vehicle can simultaneously operate the respective cutting handle and stroke handle with both hands. At this time, by operating the stroke handle, the cutting grindstone is moved forward or backward along the cut end of the rail to select the cut end, and at the same time, the operation of the cut handle is also performed for the position of the selected cut end. By applying (pressing) the cutting grindstone to the rail, the cutting grindstone can be cut forward by a handle that is slightly changed in the forward and backward directions by operating both handles.

Therefore, when cutting a thick part and a thin part with a series of operations like a railroad rail, a thick part (rail head) that allows the cutting grindstone to move forward and backward by operating the handle. For the above, move the cutting grindstone to the part where the cutting width is small, that is, the part where the cut edge is projected, and for the thin vertical part (rail abdomen), contact the cutting grindstone from the vertical direction and proceed with cutting. This improves the cutting speed, prevents wear of the cutting wheel, reduces the size of the drive source,
Also, the miniaturization of the entire device can be achieved.

[Brief description of drawings]

1 to 8 show an embodiment of the position of a rail rail cutting device according to the present invention. FIG. 1 is a side view and FIG.
The figure shows a side view of this cutting device mounted on a rail.
FIG. 3 is a perspective view showing a state in which the cutting device is carried along a rail, and FIG. 4 is a partially cutaway front view showing the driving part of the cutting device and the mounting part of the cutting grindstone. FIG. 6 is a vertical cross-sectional view of the punching device attached to the cutting device, FIG. 6 is a partially cutaway plan view showing the attachment mechanism of the stroke handle and the operation handle at the rear end of the guide rail, and FIG. 7 is FIG. FIG. 8 is a front view of a holding portion of the rail. A ... Cutting machine, a ... Railroad rail, 1 ... Guide rail,
7 ... Upper base, 8 ... Lower base, 10 ... Engine, 18
…… Cut arm, 20 …… Cut handle, 24 …… Cut grindstone, 30 …… Drilling drill, 32 …… Nut material, 33 …… Screw rod, 34 …… Operation handle, 35 …… Bracket, 42 ……
Stroke handle, 43 ... first presser foot, 44 ... second presser foot, 47 ... third presser foot, 48 ... lock arm.

Continuation of the front page (56) References JP-A-58-186519 (JP, A) JP-A-47-20778 (JP, A) Actual opening Sho-48-110778 (JP, U) Actual opening Sho-53-7889 (JP , U) Actual development 52-37692 (JP, U) Actual development 57-34355 (JP, U) Actual public 25-8497 (JP, Y1)

Claims (1)

[Claims] 1. A clamp device for removably fixing railway rails at right angles to each other is provided at the rear end of the guide rail, and a tip screw portion of a screw rod is screwed to a base body slidably provided along the guide rail. And the operation handle is fixed to the rear end of the screw rod and pivotally attached to the stroke bracket applied to the rear end of the guide rail, and the rotation fulcrum of the stroke handle is connected to the side portion of the clamp device. , The stroke handle and the stroke bracket are connected to each other via a means for converting the rotational movement of the stroke handle into a linear reciprocating movement of the stroke bracket, while a cutting arm having a cutting handle fixed to the base is vertically moved. And a cutting grindstone that is connected to a drive source provided on the base body and rotates, is provided at the tip of the cutting arm. Road rail cutting device.