JP2002275808A - Cut correction device of rail seam welding residual part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically cut and correct a seam welding residual part of a rail in a required shape by forming a contact surface running in the rail lengthwise direction of a gauge piece in a required shape. SOLUTION: A grinding belt 4 for cutting and correcting a seam welding residual part R' of the rail R is tensioned in the lengthwise direction of the rail R in a device body 1 detachably fixed to the rail R. A pressing roller 17 for pressing the grinding belt 4 in the rail R direction is provided so as to be movable in the lengthwise direction. The device body l is attached with a support 8 for approaching and separating to the rail R. While replaceably fastening and installing a gauge piece 28 running in the lengthwise direction on the support 8, a moving material 19 constituted by pivotally fixing a support piece 19B rollingly energized in the gauge piece 28 direction is movably installed in the lengthwise direction on a moving subject 19A. The support piece 19B of the moving material 19 is respectively attached with the pressing roller 17 and a rolling piece 26 for rolling by contacting with the contact surface 28A running in the lengthwise direction of the gauge piece 28 by the rolling energization.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for cutting a remaining portion of a rail joint.

[0002]

2. Description of the Related Art A pair of rotary drums are provided on an apparatus body which is removably fixed to a rail to be rehabilitated, and a grinding belt is mounted on the rotary drum along a longitudinal direction of the rail for reshaping the remaining welding seam of the rail. There is a structure in which a pressing roller for pressing an inner side surface of the grinding belt in the rail direction is movably attached to the apparatus main body along the grinding belt.

[0003]

In the above-mentioned prior art, the grinding belt is moved along the longitudinal direction of the rail by the rotation of a rotary drum, and the inner surface of the grinding belt is pressed by a pressing roller to contact the rail surface. The remaining portion of the seam weld is sharpened in such a way that the pressing roller moves (displaces) in the horizontal direction structurally. Therefore, the grinding belt pressed by the pressing roller sharpens the rail horizontally. Therefore, it is difficult to sharpen the remaining welding portions of the rails that are welded at different angles along the welding (connection) angle, which causes inconvenience.

The present invention has been made to correct such disadvantages of the conventional example.

[0005]

SUMMARY OF THE INVENTION A grinding belt for sharpening the remaining welded seam of a rail is stretched along the longitudinal direction of the rail on an apparatus body detachably fixed to the rail, and the grinding belt is attached to the rail. A pressing roller for pressing in the direction, a rail seam welding rest rest sharpening device provided movably along the longitudinal direction, in the device body, a support body that approaches and separates from the rail is assembled, A movable member constituted by pivotally attaching a support piece pivotally urged in the gauge piece direction to a moving subject while fixing the gauge piece along the longitudinal direction to the body in a replaceable manner. A rolling element that is mounted so as to be movable along the contact member and that rolls in contact with the contact surface along the longitudinal direction of the gauge piece by the pressing roller and the rotational bias on the supporting piece of the moving material, respectively. It is an attached configuration

[0006]

When the grinding belt is moved and pressed by a pressing roller to bring the grinding belt into contact with the rail seam welding residue, which is the cutting surface of the rail, the rail seam welding remainder is ground (ground).

The rolling element contacts the contact surface along the longitudinal direction of the gauge piece and rotates. The rolling element moves along the longitudinal direction of the rail according to the shape of the contact surface. The grinding belt presses the grinding belt in the direction of the rail in a manner similar to a copying process, and the grinding belt corrects the cutting surface of the rail.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic front view of an apparatus for trimming a residual portion of a rail joint according to the present invention; FIG. 3 is a bottom view of FIG. 2, FIG. 4 is a sectional view taken along line xx of FIG. 1, and FIG.
6 is an explanatory view.

A shaving apparatus A according to an embodiment is used to sharpen a joint weld remaining portion of a pair of rails (roughly a railroad rail) welded to each other on site, and in the figure, 1 is an apparatus body. The apparatus main body 1 is adapted to be detachably fixed to the rail R by clamping devices 2 and 2 provided on both sides in the longitudinal direction during the cutting operation, and the rotating drums 3 and 3 are provided on the both sides, respectively. ′ Is rotatably pivoted, and a grinding belt 4 is provided on the rotating drums 3, 3 ′ to sharpen the remaining joint R ′ of the rail R.

The grinding belt 4 is connected to the one rotating drum 3
Is connected to a drive motor 6 mounted on the apparatus main body 1 via a belt transmission device 5 and the rotary drum 3 is rotated by the drive motor 6, whereby the rail R
Are moved along the longitudinal direction, and the movement is smoothly performed by adjusting the tension device 7, which is partially omitted in the drawing.

Inside the grinding belt 4 (a portion surrounded by the endless belt-shaped grinding belt 4), a support 8 which is long in the longitudinal direction of the rail R is disposed. The ends of a pair of supporting rods 9, 9 pierced into the main body 1 are attached to the distal end, and the base is connected to the apparatus main body 1 by the pivot 1.
1, two pairs of support arms 10, which are pivotally connected by 1
10. Operate the connecting pieces 12, 12 which are assembled to the apparatus main body 1 via 10 'and 10' and are connected to the support arms 10, 10 on one side of the apparatus main body 1 via the pivots 11, 11. By doing so, it is made to approach and separate from the rail R.

The connecting piece 12 has a base connected to the support arm 10 through the pivot 11 and a free end side connected to each other through an intermediate piece 13, while the front end is connected to the end of a chain 14. A portion is attached, and the chain 14 swings (turns) around the pivot 11 by the movement of the chain 14.

The chain 14 meshes with a sprocket 15A connected to a rotation shaft of a second drive motor 15 mounted on the apparatus main body 1, and moves in the direction along the longitudinal direction with the rotation of the sprocket 15A ( (Left and right direction in FIG. 1)
It moves (this movement amount is detected by the grinding amount detection device 16 and transmitted to the control device). That is, in FIG. 1, when the sprocket 15A rotates clockwise by driving the second drive motor 15, the chain 14 moves to one side in the longitudinal direction of the rail R, to the left in the drawing, and as a result,
The connecting piece 12 swings counterclockwise about the pivot 11, and the support arm 10 integrated with the pivot 11 also rotates counterclockwise, and as a result, is disposed on the distal end side of the support arm 10. The supporting rod 9 lifts the support 8, the support 8 moves in a direction to separate from the rail R, and the members for driving the second drive motor 15 in the opposite direction to the drive return to the original position. When the second drive motor 15 is further rotated in the reverse direction to rotate the sprocket 15 in the counterclockwise direction, the chain 14 is moved to the other side in the longitudinal direction of the rail R, to the right in the drawing of FIG. And as a result, the connecting piece 12
1, the supporting arm 10 integrated with the pivot 11 also rotates clockwise. As a result, the supporting rod 9 disposed on the distal end side of the supporting arm 10 Is lowered, and the support 8 moves in a direction approaching the rail R.

Such proximity of the support 8 to the rail R,
The separating operation is expressed as the cutting depth of the rail R of the grinding belt 4 pressed by the pressing roller 17 attached to the support body 8. In the embodiment, the cutting depth (cut) is calculated as
The amount of movement of the chain 14 is detected by the correction amount detecting device 16 (potentiometer) and transmitted to the control device, and the correction operation is performed according to a preset program.

The pressing roller 17 is disposed between the support 8 and the grinding belt 4 and moves along a pair of guide rails 18 along the longitudinal direction of the support 8. 19 to be rotatably assembled.

The movable member 19 is constructed by pivotally connecting one end of a support piece 19B to a movable body 19A having a linear guide 20 slidably fitted on the guide rail 18. Both ends of the timing belt 22 wound around pulleys 21 and 21 'rotatably supported on both sides in the longitudinal direction (longitudinal direction of the rail R) are fastened to the moving body 19A, respectively. Accordingly, it moves along the guide rail 18 due to the engagement relationship between the linear guide 20 and the guide rail 18.

The timing belt 22 is freely moved along the longitudinal direction of the guide rail R by the driving of a third drive motor 24 connected to one of the pulleys 21 via a belt transmission device 23, so that the pressing roller 17 The amount of movement appears as a grinding length, and a grinding length detecting device (potentiometer) 25 connected to the belt transmission device 23 detects this as a grinding length, and detects the same as the grinding amount detecting device 16. The control device, which is transmitted to the control device and obtains the detection signal, controls the third drive motor 24 in accordance with the program, so that a cutting operation of a predetermined cutting length is performed.

A pressure roller 17 and a bearing 26, which are always in contact with the grinding belt 4 by adjusting the tension device 7, are rotatably mounted on the support piece 19B which is rotatably connected to the moving subject 19A. Of course, the pressing roller 17 is arranged on the grinding belt 4 side so as to always contact the belt 4 as described above, and the bearing 26 is
The support piece 19B is disposed at a position in contact with a gauge piece 28 provided side by side with respect to the guide rail 18 on the support body 8 by a rotational bias on the support piece 19B.

That is, one of the pivots 29, which pivotally supports the supporting piece 19B with respect to the moving body 19A, has one end fixed to the moving body 19A and the other end locked to the supporting piece 19B. The support piece 19B is turned around the pivot 29 in one direction clockwise or counterclockwise (counterclockwise in FIG. 2 or 5) by the bias of the coil spring 27. The bearing 26 is assembled to a shaft 30 attached to the support piece 19B at the leading end in the rotational urging direction, and the moving member 19 (moving subject 19
A and the support piece 19B) move along the guide rail 18 and the bearing 26 rolls constantly in contact with the contact surface 28A of the gauge piece 28 arranged along the guide rail 18.

The gauge piece 28 is attached to the support 8 by the fastening screw 3.
1, the contact surface 28A on which the bearing 26 comes into contact and rolls is formed in a shape that matches the ground shape of the surface of the rail R. In FIG. R has a slightly arc shape as a whole, and this arc shape is cut into the arc shape of the contact surface 28A. However, the gauge piece is selected as having a different contact surface and the support member 8 is selected. The bearing 26 is removably mounted to roll the bearing 26 on the different contact surface, and the surface of the rail R is ground to a shape corresponding to the contact surface.

Thus, in the apparatus A of the embodiment, the apparatus main body 1 is fixed to the rail R by using the clamp device 2, and the driving motor 6 is driven to drive the grinding belt 4 stretched on the rotating drums 3, 3 '. By rotating and moving, the second drive motor 15 is driven to bring the support 8 close to the rail R direction so that the moving grinding belt 4 is brought into contact with the surface (cutting front surface) of the rail R so as to be in the third position. When the drive motor 24 is driven to move the moving member 19 along the guide rail 18, the bearing 26 provided on the moving member 19 rolls in contact with the contact surface 28A of the gauge piece 28, and The rail R according to the shape
Relative to the surface of the rail R (including the surface of the remaining welding portion), the pressing roller 17 presses the grinding belt 4 along a locus along the shape of the contact surface 28A to correct the surface of the rail R. (Grinding) is performed, and if necessary, the second drive motor 15 is driven to bring the pressing roller 17 even closer to the rail R, so that the amount of cutting (cutting) is deeply reduced.
In addition, by changing the forward / reverse rotation direction of the third drive motor 24, the pressing roller 17 reciprocates on the surface portion of the remaining welded portion R ', and the portion is sharpened, so that the rail R is sharpened.

The bearing 26 is essentially a contact surface 28
Since it is sufficient that the trochanter rolls in contact with A and its movement is performed smoothly, it is sufficient that the trochanter has the function as shown on the left.
It is not necessary to limit to what is called a bearing.

[0023]

Since the present invention has the configuration as described above,
The rolling locus of the pressing roller is formed by rolling the rolling element by contacting the rolling element with the contact surface of the gauge piece. The rail surface is adjusted by adjusting the shape of the contact surface of the gauge to the grinding (grinding) shape of the rail. Since the shape can be automatically cut to the set shape and the gauge piece is detachable, the rail surface can be ground into various cut shapes by replacing the gauge piece.

[Brief description of the drawings]

FIG. 1 is a schematic front view.

FIG. 2 is a schematic front view in which an apparatus main body is omitted.

FIG. 3 is a bottom view of FIG. 2;

FIG. 4 is a sectional view taken along line xx of FIG. 2;

FIG. 5 is a sectional view taken along line yy of FIG. 4;

FIG. 6 is an explanatory diagram.

[Explanation of symbols]

 R rail 1 apparatus main body 4 grinding belt 8 support 17 pressing roller 19 moving material 19A moving subject 19B support piece 26 bearing 28 gauge piece 28A contact surface

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenichi Ito 2-2-2 Yoyogi, Shibuya-ku, Tokyo Inside East Japan Railway Company (72) Inventor Tomoki Watanabe 2-2-2 Yoyogi, Shibuya-ku, Tokyo No. Tohoku Japan Railway Company (72) Inventor Norio Sasamoto 2-10-1, Nakameguro, Meguro-ku, Tokyo Union Construction Corporation (72) Inventor Masanori Yamada 2-chome Nakameguro, Meguro-ku, Tokyo No. 1 Inside Union Construction Co., Ltd. (72) Inventor Seiji Hosokawa 2-396-1, Yashio City, Saitama Pref. Maintenance Equipment Co., Ltd. (72) Inventor Hitoshi Mizuno 2-396-1, Yashio City, Saitama Pref. (72) Inventor: Tomoaki Sato 2-396-1, Yashio-shi, Saitama F-term (reference) 2D057 BA26

Claims (1)

[Claims] 1. A grinding belt for sharpening the remaining seam welding of a rail is stretched along a longitudinal direction of the rail on an apparatus body detachably fixed to the rail, and the grinding belt is pressed in the rail direction. A pressing roller, a rail seam welding remaining portion shaving device provided so as to be movable along the longitudinal direction, in the device body, a support that approaches and separates from the rail is assembled, and the support is While moving the gauge piece along the longitudinal direction so as to be replaceable, a moving member constituted by pivotally attaching a support piece pivotally biased in the gauge direction to the moving subject is moved along the longitudinal direction. Rails, each of which is attached to the supporting piece of the moving member, and a rolling element that rolls in contact with the contact surface along the longitudinal direction of the gauge piece by the pressing roller and the rotation bias is attached to the supporting piece of the moving material. Sharpening equipment for the remaining seam welding.