JP6268064B2 - Rail grinding device - Google Patents

Description

  The present invention relates to a rail correction device that corrects the surface of a rail, such as a weld overlay on a rail joint or unevenness of the rail surface.

  For example, as a rail rectifier that corrects the surface of the rail, such as the weld surplus of the rail joint or unevenness of the rail surface, for example, a belt is placed on a plurality of rotating bodies arranged at predetermined intervals in the longitudinal direction of the rail. A device has been proposed in which a grinding wheel piece is attached to the surface of the belt and the surface of the rail is corrected by reciprocating the grinding wheel piece by rotating the rotating body with the grinding wheel piece in contact with the rail surface. (For example, refer to Patent Document 1).

JP 2009-215764 A

  However, the rail grinding apparatus described in the above-mentioned Patent Document 1 is configured by spanning a belt to a plurality of rotating bodies arranged at predetermined intervals in the longitudinal direction of the rail, and attaching a grindstone piece to the surface of the belt. Therefore, there is a problem that the apparatus becomes large.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a rail correcting device that can correct the surface of a rail with a simple configuration without increasing the size of the device.

In order to solve the above-mentioned problem, the rail correction apparatus of the present invention is a rail correction apparatus that uses a rotary bar as a correction means for correcting the surface of the rail, and the rotary bar has a width equal to or larger than the tread surface of the rail. And a pair of left and right asymmetric guides on the front and rear of the rotary bar in the main body of the correcting device, respectively. A pair of left and right asymmetric guide rollers are provided on the inner ring substantially the same as the width of the head of the rail, and on the left and right sides of the inner collar, respectively, and the side of the head relative to the abdomen side of the rail A small-diameter outer ring having an outer diameter larger than the outer diameter of the inner ring by a length smaller than the protruding length of the inner ring, and provided on the left and right other sides of the inner collar, and larger than the outer diameter of the small-diameter outer ring And having a large-diameter wheel having an outer diameter.
Here, in the rail grinding positive device, further provided spaced by respective predetermined distances before and after both sides of the rotary bar, a pair of reference rollers are provided before and after adjusting the expurgation amount of vertical rotary bar Good to be.
Further, in the rail grinding apparatus, the pair of front and rear reference rollers respectively support the reference roller that rotates on the rail tread surface and the reference roller so that the reference roller can rotate, and can also be supported so as to be rotatable with respect to the main body of the grinding machine. The reference roller support portion is screwed into a bolt hole provided on the upper side surface of the correction device main body, and the lower end portion comes into contact with the upper side surface of the reference roller support portion to rotate the reference roller support portion. It is preferable to have a height adjusting screw for adjusting the height of the reference roller.
Moreover, in the said rail grinding apparatus, the said rotary bar is good to be connected to the motor which is a rotation means via a flexible shaft.
Further, in the above-mentioned rail grinding apparatus, the grinding machine folder which can be detachably attached to the grinding machine main body and can be equipped with a grinding machine whose grinding surface is finer than that of the rotary bar, and is detachably attached to the grinding machine main body. A spring is provided that pulls the head of the polishing machine upward, and a height adjustment screw that adjusts the height of the polishing machine head in the vertical direction against the tensile force of the spring. It is even better to have a height adjusting mechanism.

In the rail correction apparatus of the present invention, the rotary bar is used as the correction means for correcting the surface of the rail. Therefore, the surface of the rail can be corrected with a simple configuration without increasing the size of the apparatus.
In particular, in the rail sharpening device according to the present invention, the pair of left and right asymmetric guide rollers are provided on the inner ring substantially the same as the width of the head of the rail and on the left and right sides of the inner collar, respectively, A small-diameter outer ring having an outer diameter that is larger than the outer diameter of the inner ring by a length smaller than the protruding length of the side surface, and an outer diameter that is provided on the other left and right sides of the inner collar and is larger than the outer diameter of the small-diameter outer ring In addition to the tread surface of the rail head, corners and side surfaces can be corrected.

It is a top view of the rail grinding device of Embodiment 1 concerning the present invention. It is a front view of the rail correction apparatus of Embodiment 1. It is a bottom view of the rail correction apparatus of Embodiment 1. It is a left view of the rail shaving apparatus of Embodiment 1. It is a figure which shows the connection with the partial enlarged plan view which shows the structure of the grinding part in the rail grinding apparatus of Embodiment 1, and a rotation means. It is a partial enlarged plan view which shows the structure of the correction amount adjustment part and id roller part in the rail correction apparatus of Embodiment 1. FIG. It is a partial expanded front view which shows the structure of the cutting amount adjustment part and id roller part in the rail cutting apparatus of Embodiment 1. FIG. It is a side view which shows the state in the case of correcting the corner | angular part of a rail head with the rail correction apparatus of Embodiment 1. FIG. It is a side view which shows the state in the case of correcting the lateral side plate of a rail head by the rail correction apparatus of Embodiment 1. (A), (b) is the front view and left view of a polisher folder in the rail sharpening apparatus of Embodiment 2, respectively. It is a fragmentary sectional front view which shows the state which mounted | wore the rail grinder with the grinder using the grinder folder and the grinding | polishing part height adjustment part in the rail grinder of Embodiment 2. FIG. It is a partial cross-sectional enlarged front view of the state which mounted | wore the rail grinder with the grinder using the grinder folder and the grinding | polishing part height adjustment part in the rail grinder of Embodiment 2. FIG. It is a left side end view of the grinding | polishing part height adjustment part in the rail shaving apparatus of Embodiment 2.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a rail correction apparatus according to the present invention will be described in detail with reference to the accompanying drawings. The embodiment described below is merely an example of the present invention, and the present invention is not limited to the following embodiment, and can be appropriately changed within the scope of the technical idea of the present invention.

  As shown in FIG. 1, the rail correction apparatus 1 of the present embodiment transmits the rotational force of the rotating means 2 through the flexible shaft 3 to correct the surface of the rail, and is shown in FIGS. 1 and 2. As described above, the correction device main body 11, the correction unit 12, the pair of front and rear correction amount adjusting units 13 and 13, and the pair of front and rear guide roller units 14 and 14 are provided.

  The correction device main body 11 includes left and right lateral plates 11a, 11a made of long steel materials arranged at an interval more than the tread surface 41a of the head portion 41 of the rail 4 as a correction portion 12 and a pair of front and rear. The cutting amount adjusting portions 13 and 13 and a pair of front and rear guide roller portions 14 and 14 are connected to each other.

  Here, on the upper side surfaces of the lateral plates 11a, 11a, as shown in FIGS. 1 to 3, etc., an ellipse-shaped handle 11b is provided for an operator to hold and reciprocate on the rail 4. .

  The length in the left-right direction of the handle 11b, that is, the width direction of the rail 4 is set to be larger than the interval between the lateral plates 11a, 11a of the correction device body 11, as shown in FIGS. It is configured so that the operator can easily work.

  Further, the length of the handle 11b in the front-rear direction, that is, the length in the longitudinal direction of the rail 4 extends until it reaches above the height adjustment screws 13e, 13e of the pair of front and rear correction amount adjustment units 13, 13 of the correction device body 11. The height adjusting screws 13e and 13e of the pair of front and rear correction amount adjusting portions 13 and 13 are located below the end portion in the front and rear direction of the handle 11b.

  Therefore, when the operator follows the handle 11b, it is easy to search for the height adjustment screws 13e and 13e of the correction amount adjusting units 13 and 13, and the height adjustment screws 13e and 13e are rotated and raised. Since the height adjustment screws 13e and 13e can be prevented from falling off or being lost.

  As shown in FIG. 5 and the like, the grinding part 12 is made of a cemented carbide material such as cemented carbide as a grinding means, and is cylindrical and provided with a single or double spiral blade on the outer peripheral surface thereof. The rotary bar 12a is used, the rotational force of the rotating means 2 is transmitted through the flexible shaft 3 to rotate the rotary bar 12a, and the rotary bar 12a is rotated so that the welding surplus at the joint portion of the rail 4 and the rail 4 are rotated. Correct the irregularities on the surface. In addition, 12b is a rotating shaft passing through the center of the rotary bar 12a, and 12c is a bearing that rotatably supports the rotating shaft 12b.

  The rotating means 2 is connected to the rotary bar 12a via the flexible shaft 3, and rotates the rotary bar 12a to correct the welding surplus at the joint portion of the rail 4 and the unevenness of the surface of the rail 4. Either a motor or an engine may be used. In short, it is only necessary that the rotary bar 12a can be rotated.

  The pair of front and rear correction amount adjusting units 13 and 13 are provided on the both front and rear sides of the correction unit 12 by a predetermined distance, respectively, and the vertical correction amount by the rotary bar 12a of the correction unit 12 is set. To be adjusted.

  Specifically, as shown in FIGS. 6 and 7, the pair of front and rear correction amount adjusting units 13 and 13 are respectively provided with left and right lateral plates 11 a and 11 a on both sides of the correction device main body 11 by screws or the like (not shown). The cutting amount adjustment base 13a fixed to the upper end of the steel plate, the rotation pin 13b rotatably supported on the cutting amount adjustment base 13a, and a U-shaped steel plate member having a lower opening, both left and right side surfaces The reference rollers 13c and 13c that rotate on the tread 41a of the head 41 of the rail 4 are rotatably supported, and are connected to the rotation pin 13b and swing up and down around the rotation pin 13b. The height of the rollers 13c and 13c is adjusted, and the reference roller support portion 13d that rotatably supports the reference rollers 13c and 13c is screwed into a screw hole provided at substantially the center of the cutting amount adjustment base 13a. , Tip is standard And a height adjustment screw 13e abuts on the side surface of the over la supporting portion 13d (top panel).

  Therefore, when the height adjustment screw 13e is rotated, the height adjustment screw 13e moves up and down with respect to the correction amount adjustment base 13a, and the tip end of the height adjustment screw 13e contacts the upper side surface of the reference roller support portion 13d. The height of the rollers 13c, 13c, that is, the amount of cutting in the vertical direction by the rotary bar 12a of the cutting unit 12 can be adjusted.

  The pair of front and rear guide roller portions 14 and 14 are provided at the front and rear ends of the lateral side plates 11a and 11a of the correction device main body 11, that is, outside the correction amount adjustment portions 13 and 13, respectively. Shaft portions 14a and 14a attached to the lateral plates 11a and 11a, and left and right asymmetric guide rollers 14b and 14b rotatably supported by the shaft portions 14a and 14a.

  The left and right asymmetric guide rollers 14b and 14b are respectively provided on the left and right sides of the inner ring 14b1 and the inner collars 14b1 and 14b1 of the inner ring 14b1 that are substantially the same as the width of the head 41 of the rail 4, and have different diameters. Have

  Since the left and right asymmetric guide rollers 14b and 14b have an inner ring 14b1 that is substantially the same as or slightly larger than the width W of the head 41 of the rail 4, the tread of the head of the rail 4 without tilting the rail correcting device 1 When grinding (the top surface), as shown in FIG. 4 and the like, the inner ring 14b1 of the left and right asymmetric guide rollers 14b and 14b abuts the tread surface (the top surface) 41a of the head 41 of the rail 4, and the inner diameter outer ring 14b The left and right side surfaces of the head 41 of the rail 4 are positioned between the inner side surface and the inner side surface of the large-diameter outer ring 14b3.

  Therefore, the rail shaving apparatus 1 can grind the tread (top surface) of the head 41 of the rail 4 while guiding the longitudinal movement of the rail 4 in the longitudinal direction by the left and right asymmetric guide rollers 14b and 14b.

  Here, as shown in FIG. 4, the length L1 from the outer peripheral surface of the inner ring 14b1 to the outer peripheral surface of the small-diameter outer ring 14b2 is about half of the height H of the head 41 of the rail 4 or shorter than half. On the other hand, the length L2 from the outer peripheral surface of the inner ring 14b1 to the outer peripheral surface of the large-diameter outer ring 14b3 is substantially the same as the width W of the head 41 of the rail 4 or slightly shorter than the width W.

  Therefore, when the rail grinding device 1 is inclined to nearly 45 degrees and the corner 41b of the head 41 of the rail 4 is ground, the large-diameter outer ring 14b3 of the left and right asymmetric guide rollers 14b and 14b as shown in FIG. The inner surface of the inner ring 14 and the outer peripheral surface of the inner ring 14 b 1 can contact the corner 41 b of the rail 4 to guide the longitudinal movement of the rail 4 in the longitudinal direction.

  Further, when the rail grinding device 1 is inclined by nearly 90 degrees and the left and right side surfaces 41c of the head portion 41 of the rail 4 are ground, the large-diameter outer rings 14b3 of the left and right asymmetric guide rollers 14b and 14b as shown in FIG. The inner surface of the rail 4 is brought into contact with the tread surface (head surface) 41a of the head 41 of the rail 4, while the outer peripheral surface of the inner ring 14b1 is brought into contact with the side surface 41c of the head 41 of the rail 4 to move the rail 4 in the longitudinal direction. Can guide.

  Therefore, according to the rail correcting apparatus 1 of the first embodiment, the rotary bar 12a is used as a correcting means for correcting the surface of the rail 4, so that the surface of the rail can be formed with a simple configuration without increasing the size of the apparatus. It can be corrected.

  In particular, in the rail correction device 1 of the first embodiment, the rotary bar 12a has a width equal to or greater than the tread surface of the head 41 of the rail 4, and the longitudinal length of the long correction device main body 11 having a predetermined length at the lower opening. A pair of front and rear is provided in the correction device main body 11 so as to be spaced apart from each other by a predetermined distance on both the front and rear sides of the rotary bar 12a to adjust the vertical correction amount of the rotary bar 12a. Since the reference rollers 13c and 13c are provided, the surface of the rail can be corrected more accurately and efficiently with a simple configuration.

  In particular, in the rail shaving apparatus 1 according to the first embodiment, on the outer side in the longitudinal direction of the pair of front and rear reference rollers 13c and 13c, an inner ring 14b1 and an inner collar 14b1, respectively, which are substantially the same as the width of the head 41 of the rail 4, respectively. 14b1 is provided with a pair of front and rear asymmetric guide rollers 14b and 14b having a large-diameter outer ring large-diameter outer ring 14b3 and a small-diameter outer ring 14b2 which are provided on both the left and right sides of 14b1. It is possible to tilt the rail correction device 1 from the horizontal angle to nearly 90 degrees while being supported.

  As a result, according to the rail correction apparatus 1 of the first embodiment, not only the tread surface 41 of the head of the rail 4 but also the corner portion 41b and the side surface 41c can be corrected.

Embodiment 2. FIG.
Next, the rail sharpening apparatus 1 of Embodiment 2 is demonstrated.
The rail shaving apparatus 1 according to the second embodiment is configured such that a polishing machine 5 such as a sander whose grinding surface is finer than the rotary bar 12a is detachably attached to the rail shading apparatus 1 described above.

  10A and 10B are a front view and a left side view of a polishing machine folder 15 for detachably mounting the polishing machine 5 such as a sander, respectively.

  As shown in FIGS. 10 (a) and 10 (b), the polishing machine folder 15 is made of a steel material or the like having an open lower portion and a U-shaped cross section, and the polishing machine 5 is attached to the top board 15a. Insertion holes for passing both ends of the U-shaped steel 15c for clamping between the lower side surfaces of the U-shaped steel 15c are provided, and both ends of the U-shaped steel 15c protruding from the insertion hole are fastened by nuts 15d and 15d. The polishing machine 5 is held by the lower surface of the top plate 15a and the two U-shaped steels 15c.

  Further, the left and right lateral plates 15b and 15b of the grinder folder 15 are aligned with the mounting holes provided in the left and right lateral plates 11a and 11a of the grinding device body 11 of the rail grinding device 1, respectively. Attachment holes 15b1 and 15b2 for attaching the polishing machine folder 15 to the correction device main body 11 are provided.

  Therefore, as shown in FIG. 11 and FIG. 12, first, the grinder folder 15 to which the grinder 5 is attached is fitted into the grinder main body 11 of the rail grinder 1, and the bolt 61 is passed through the mounting hole 15b2 with the nut 62. Can be fixed.

  FIG. 11 is a partial cross-sectional front view showing a state in which the polishing machine 5 such as a sander is mounted on the rail straightening device 1 using the polishing machine folder 15 and the polishing unit height adjusting unit 16, and FIG. FIG. 13 is an enlarged front view, and FIG. 13 is a left side end view of the polishing part height adjusting unit 16.

  As shown in FIGS. 11 and 12, the polishing machine folder 15 is made of a steel material or the like having an open lower portion and a U-shaped cross section, and the top plate 15a includes the polishing machine 5 and a lower surface of the top plate 15a. Insertion holes for passing both ends of the U-shaped steels 15c, 15c are sandwiched between them, and both ends of the U-shaped steels 15c, 15c protruding through the insertion holes are fastened by nuts 15d, 15d. The polishing machine 5 is held by the lower surface of the top plate 15a and the two U-shaped steels 15c and 15c.

  Further, the left and right lateral plates 15b and 15b of the grinder folder 15 are aligned with the mounting holes provided in the left and right lateral plates 11a and 11a of the grinding device body 11 of the rail grinding device 1, respectively. Attachment holes 15b1 and 15b2 for attaching the polishing machine folder 15 to the correction device main body 11 are provided.

  Therefore, as shown in FIG. 11 and FIG. 12, first, the grinder folder 15 to which the grinder 5 is attached is fitted into the grinder main body 11 of the rail grinder 1, and the bolt 61 is passed through the mounting hole 15b2 with the nut 62. Fix it.

  Moreover, in the rail grinding apparatus 1 of Embodiment 2, as shown in FIGS. 11-13, the height of the grinding | polishing (grinding stone) part 53 at the front-end | tip of the grinding machine 5 becomes an optimal position with respect to the surface of the rail 4. FIG. Thus, a height adjustment mechanism 16 is provided.

  As shown in FIG. 13, the height adjusting mechanism 16 is made of a steel material or the like having a top plate 16 a and left and right side plates 16 b and 16 b with an open bottom and a U-shaped cross section, like the polishing machine folder 15. The top plate 16a is provided with two spring hook bolts 16d, 16d and the like for pulling the head 41 of the polishing machine 5 upward by the tensile force of the spring 16c connected to the lower end portion at a predetermined interval. On the other hand, between the spring hook bolts 16d and 16d, the lower end is in contact with the head 41 of the polishing machine 5 and the height of the head 41 of the polishing machine 5 is increased against the tensile force of the spring 16c. A height adjusting screw 16e for adjusting in the vertical direction is provided.

  Therefore, as shown in FIGS. 11 to 13, the main body 51 of the polishing machine 5 is fixed to the polishing machine folder 15 by the two U-shaped steels 15 c, 15 c, and then attached to the rail straightening device 1. Thus, the rail 4 is polished by adjusting the height of the polishing portion 5a of the head portion 41 of the head 5 with the height adjusting screw 16e of the height adjusting mechanism portion 16 or the like.

  Therefore, according to the rail correction device 1 of the second embodiment, as with the rail correction device 1 of the first embodiment, the correction device main body 11, the rotary bar 12a, and the front and rear sides of the rotary bar 12a are respectively predetermined. Since it has a pair of front and rear reference rollers 13c and 13c that are provided at a distance and adjust the amount of vertical correction of the rotary bar 12a, the surface of the rail is corrected with a simple configuration without increasing the size of the apparatus. can do.

  In particular, in the rail correction apparatus 1 according to the second embodiment, the polishing machine 5 such as a sander is configured to be detachably mounted to the rail correction apparatus 1 via the polishing machine folder 15, and the height adjustment mechanism unit. 16, the height of the head 41 of the polishing machine 5 held in the polishing machine folder 15 can be adjusted. Therefore, the rail 4 is corrected by the rotary bar 12 a, and then the cutting front is polished by the polishing machine 5. Finishing work and work efficiency is improved.

DESCRIPTION OF SYMBOLS 1 Rail cutting device 11 Cutting device main body 11a Lateral side plate 11b Handle 12 Cutting part 12a Rotary bar (cutting means)
12b Rotating shaft 12c Bearing 13 Cutting amount adjusting portion 13a Cutting amount adjusting base 13b Rotating pin 13c Reference roller 13d Reference roller support portion 13e Height adjusting screw 14 Guide roller portion 14a Shaft portion 14b Guide roller 14b Inner flange 14b2 Small diameter outer ring 14b3 Large diameter outer ring 2 Rotating means 3 Flexible shaft 4 Rail 41 Head 41a Tread 41b Corner 41c Side 5 Polishing machine 51 Body 52 Head 53 Polishing (grinding stone) part

Claims (5)

A rail correction device using a rotary bar as a correction means for correcting the surface of the rail,
The rotary bar is
While having a width equal to or greater than the tread surface of the rail and being provided in the middle of the longitudinal direction of the long cutting device main body having a predetermined length at the lower opening,
A pair of left and right asymmetric guide rollers are provided before and after the rotary bar in the correction device main body,
A pair of left and right asymmetric guide rollers
An inner ring almost the same as the width of the rail head,
A small-diameter outer ring provided on one of the left and right sides of the inner collar, and having an outer diameter larger than the outer diameter of the inner ring by a length smaller than the protruding length of the head side surface with respect to the abdomen side surface of the rail;
A rail shaving apparatus , comprising: a large-diameter outer ring provided on the left and right other side of the inner collar and having an outer diameter larger than the outer diameter of the small-diameter outer ring . The rail grinding apparatus according to claim 1,
The correction device body further includes:
A rail grinding device characterized in that a pair of front and rear reference rollers are provided on both sides of the front and rear of the rotary bar so as to be separated from each other by a predetermined distance and adjust the amount of grinding in the vertical direction of the rotary bar. In the rail correction apparatus according to claim 2,
Each of the pair of front and rear reference rollers
A reference roller that rotates on the tread of the rail;
A reference roller support portion that rotatably supports the reference roller and that is rotatably supported with respect to the correction device main body.
The height of the reference roller is adjusted by screwing into a bolt hole provided on the upper side surface of the correction device body and rotating the reference roller support portion with the lower end abutting on the upper side surface of the reference roller support portion. A rail straightening device comprising a height adjusting screw. In the rail straightening device according to any one of claims 1 to 3,
The rotary bar is
A rail shaving apparatus, characterized in that it is connected to a motor that is a rotating means via a flexible shaft. In the rail straightening device according to any one of claims 1 to 4,
further,
A polishing machine folder that is detachably attached to the main body of the correction device and can be mounted with a polishing machine with a finer surface than the rotary bar.
A spring that is detachably mounted on the main body of the correction device and that pulls the head of the polisher upward is provided, and the height of the head of the polisher is adjusted in the vertical direction against the tensile force of the spring. And a height adjusting mechanism portion provided with a height adjusting screw.

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