JP2004332299A - Rail polishing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rail polishing device for miniaturizing the device, and operable by one operator. <P>SOLUTION: Wheels 7a and 7b are installed in the front and the rear of a frame 2, and a stand 15 attached with a rotary polishing machine 3 is arranged between the wheels 7a and 7b. This stand 15 is installed, so as to move over to a side surface from an upper surface of a head part of a rail R, by a guide means composed of guide grooves 14a and 14b and projecting rods 17a and 17b fitted in these grooves. The operator holds an operation rod 4 of the rotary polishing machine 3 installed on the stand 15, and polishes the rail R by operating a rail polishing machine body 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rail polishing device used for a railway.
[0002]
[Prior art]
The vehicle travels on the rails using friction between the wheels and the rails, and at that time, the rails are worn. In particular, it has a smooth curve from the upper surface to the side surface of the rail head, but it has a square shape due to wear of the upper surface. According to this horn shape, the corner portion hits the flange of the wheel and damages the flange.
[0003]
Also, although the weight of the vehicle is a major cause, if the corners are turned further inward and protrude, they will ride on the flanges of the wheels and cause derailment. Further, when the vehicle does not travel on the rail, the rail is rusted by rainwater or the like, and the signal current stops flowing between the wheel and the rail, thereby causing a disconnection.
Therefore, it is necessary to modify the shape of the rail by polishing and to remove rust.
[0004]
For this reason, a rail polishing apparatus has been developed. For example, in Patent Literature 1, the vehicle 1 has wheels 2 and 3 on the lower surface, and is mounted on a pair of rails 4 and 5 for use. Moving and polishing.
[0005]
[Patent Document 1] Japanese Patent Publication No. 2-40801
[0006]
[Problems to be solved by the invention]
In the rail rail polishing apparatus of the above-mentioned known example, a pair of wheels are respectively mounted on a pair of rails, and the polishing operation is performed while traveling on the rails. Therefore, the same conditions as the use of the toro are added, and the size of the toro has to be increased due to the same structure as that of the toro. There is a disadvantage that.
[0007]
SUMMARY OF THE INVENTION The present invention provides a rail polishing apparatus which can be operated by one person as well as being reduced in size and weight, and which can be used by being attached to one rail.
[0008]
[Means for Solving the Problems]
The rail polishing apparatus according to the present invention has a gantry on which wheels are mounted before and after a frame and a rotary polisher is mounted between the wheels, and the gantry is rotatably mounted on the frame via guide means. An operating rod for transmitting a rotational force is connected to the rotary polishing machine, and a prime mover is provided on the non-rotating polishing machine side of the operating rod (claim 1). With this configuration, it is mounted on one side of the rail, and the rotating grinder can be moved from the top to the side in the short direction of the rail, and it can be easily operated alone by having the operating rod, and furthermore, the prime mover can be operated Since the frame is held by a person, the frame side can be made lighter, and it can be easily mounted or removed from the rail.
[0009]
The gantry includes a gantry main body, a mounting plate that expands and contracts with respect to the gantry main body, and a telescopic unit that expands and contracts the mounting plate, and a rotary grinder is mounted on the mounting plate (claim 2). The expansion and contraction means comprises an adjusting rod attached to the gantry body, and a nut screwed to the adjusting rod and fixed to the mounting plate. Thereby, the rotary polishing machine can be extended and contracted in the rail direction, and can be set at a position optimal for polishing.
[0010]
The guide means comprises an arc-shaped guide groove and a sliding member inserted therein, one of which is provided on the frame and the other is provided on the gantry. This guide groove is formed concentrically with the center of the radius of the curve from the rail top surface to the side surface, and the rotating grinder is rotated according to this curve, so that the curve can be properly corrected and polished It becomes.
[0011]
Wheels to be locked to the jaws of the rail head are attached to the front and rear of the frame (claim 5). This prevents the frame from lifting or coming off the rail.
[0012]
A grip handle is attached to the operating rod (claim 6). Thus, the operating rod is moved by holding the grip handle, and the rotary grinder is moved along the guide groove in the short direction with respect to the rail. That is, the polishing position of the polishing machine can be appropriately changed. Further, the frame having the rotary grinder can be moved by the operator in the longitudinal direction of the rail via the operating rod.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an example of a use state of the rail polishing apparatus according to the present invention. That is, the rotary polishing machine 3 attached to the frame 2 includes a rail polishing machine main body 1 mounted on the rail R, and an operating rod 4 extending from the rail polishing machine main body 1. A motor 6 is provided. The operator 6 fixes the motor 6 to the body and has a grip handle 5. The operator M transmits a moving speed and a polishing angle via the operating rod 4 to appropriately grind the rail.
[0014]
2 and 3, the frame 2 and the rotary polishing machine 3 are formed so as to surround four sides by using a metal plate as shown in the figure. Rear wheels 7a and 7b are mounted. In this frame 2, a gantry 8 is mounted between the wheels 7a and 7b so as to be rotatable in a direction perpendicular to the longitudinal direction of the frame 2. In this embodiment, guide plates 10a and 10b are attached to horizontal frame 2a by bolts 12.
[0015]
As shown in FIG. 4, the guide plates 10a and 10b have arc-shaped guide grooves 14a and 14b formed on the surface of the gantry 15 in the direction of the gantry 15. The guide grooves 14a and 14b are concentric with the center of the radius of the curved surface from the upper surface to the side surface of the rail R. Into the guide grooves 14a, 14b, projecting rods 17a, 17b, which are screwed to standing pieces 16a, 16b of a gantry main body 16 of the gantry 15 described below, and whose tip end protrudes, are loosely fitted. FIG. 4 is a cross-sectional view taken along the line AA of FIG. 2 and illustrates the guide plate 10a, but also illustrates the guide plate 10b.
[0016]
The gantry 15 includes a gantry body 16 and a mounting plate 19 located above and extending and contracting with respect to the gantry body. The gantry body 16 includes both standing pieces 16a and 16b and the standing pieces 16a and 16b. It consists of a horizontal piece 16c to be joined. As shown in FIG. 5, projecting rods 17a and 17b are screwed into the standing pieces 16a and 16b, and the tips protrude and are loosely fitted into the guide grooves 14a and 14b. Therefore, the gantry 15 can be rotated by sliding the protruding rods 17a and 17b in the guide grooves 14a and 14b. FIG. 5 is a cross-sectional view taken along the line B-B of FIG. 2 and illustrates the standing piece 16a, but also illustrates the standing piece 16b.
[0017]
The mounting plate 19 is screwed to screw rods 21a and 21b which are rotatably provided on the horizontal piece 16c of the gantry 15, and the knobs 23a and 23b are rotated to move the mounting plate 19 toward the gantry body 16a. It can be expanded and contracted while being guided by the guides 22a, 22b and the guide holes 24a, 24b. The operating rod 4 to which the rotary polishing machine 3 is attached at the tip is attached to the mounting plate 19 via a fixture 25. As shown in FIG. 7, the fixing member 25 comprises a pair of holding members 26a, 26b and a mounting member 26c connected to one holding portion 26a. The operating rod 4 is held by the holding members 26a, 26b and fixed by screws 27. At the same time, it is mounted on the mounting plate 19 via the screw 28 by the fixture 25. By rotating the knobs 23a and 23b by attaching the operating rod 4 to the attachment plate 19, the amount of pressing of the rotary polishing machine 3 toward the rail R can be adjusted.
[0018]
The rotary grinder 3 is transmitted from the prime mover 6 via a power transmission rod (not shown) inside the operation rod 4 and is rotated. In this embodiment, the rotary polishing machine 3 is provided with a brush, but may be provided with a grindstone if necessary. As shown in FIG. 1, the operating rod 4 for transmitting the power of the rotary polishing machine 3 and setting the polishing angle has a grip handle 5 with both hands to convey the operator's intention to operate.
[0019]
Locking wheels 30a, 30a and 30b, 30b for locking to the jaws of the rail R are provided at the front and rear of the frame 2, and the locking wheels 30a, 30a are, as shown in FIG. The support plate 31a is attached to the frame 2 by screws 32. The support plate 31a is attached to the frame 2 by screws 32. That is, the locking wheels 30a, 30a rotate and loosen the screw 32 to widen the space between the mounting plates 31a, 31a. Thus, after the rail R is inserted between the mounting plates 31a, 31b, the mounting wheels 31a, 30b are again mounted. The locking wheels 30a, 30a are locked to the jaws of the rail R by narrowing and fixing the gaps between 31a. Although not shown, the rear locking wheels 30b, 30b are mounted in the same structure as the wheels 30a, 30a, and have the same functions and effects.
[0020]
In the above-described configuration, in order to use the rail polishing apparatus, first, the rail grinding machine main body 1 is mounted on one of the rails R, so that the locking wheels 30a, 30a and the locking wheels 30b, 30b are loosened and the rail polishing machine is used. After that, the wheels 7a and 7b are mounted on the rail R. Then, the locking wheels 30a, 30a and 30b, 30b are returned to their original positions and tightened with the screws 32. Thus, the locking wheels 30a, 30a and 30b, 30b are locked to the jaws of the rail R. Then, the operator M holds the operating rod 4, grips the grip handle 5, and fixes the prime mover 6 to the human body to operate. The rotational force of the prime mover 6 is transmitted, the rotary polishing machine 3 is rotated, and the polishing of the rail R is started.
[0021]
The operator M rotates the gantry 15 along the guide grooves 14a and 14b to grind the side surface from the upper surface of the head of the rail R while moving the rail polishing machine main body 1 along the rail R with the operating rod 4. The polishing is performed by moving the side surface from the upper surface of the head of the rail R along the rotary polishing machine 3. In addition, if the rotary grinder 3 is changed to a grindstone, a processing type becomes possible. Further, when the contact of the rotary polishing machine 3 with the rail R becomes inappropriate, the knobs 23a and 23b can be rotated and the mounting plate 19 can be displaced and adjusted.
[0022]
【The invention's effect】
As described above, according to the present invention, the rotary polishing machine is mounted on one of the rails, and can be moved from the upper surface to the side surface in a direction perpendicular to the longitudinal direction of the rail, and furthermore, by having the operating rod, Can be easily operated. Since the operator holds the prime mover, the rail grinder main body is light, and can be easily mounted on and removed from the rail (claim 1).
[0023]
The rotary polishing machine can expand and contract with respect to the rail by the expansion and contraction means, and can be adjusted to an optimum polishing position. In addition, the rotary grinder attached to the gantry can rotate with respect to the frame, the guide groove moves according to a curve from the upper surface to the side surface of the rail, and the rail can be polished and the curve can be appropriately corrected. .
[0024]
Further, the rail grinding machine body is prevented from being lifted up by the locking wheel that locks to the rail jaw, and is prevented from coming off (claim 5). Furthermore, the operator can move the rotary grinder with respect to the rail not only in the longitudinal direction but also in a short direction along the guide groove by operating the operating rod (claim 6).
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a state using a rail polishing apparatus of the present invention.
FIG. 2 is a side view of a rail polishing machine main body.
FIG. 3 is a plan view of a rail polishing machine main body.
FIG. 4 is a sectional view taken along the line AA of FIG. 2;
FIG. 5 is a sectional view taken along the line BB in FIG. 2;
FIG. 6 is a front view of a rail polishing machine main body.
FIG. 7 is an exploded perspective view of a fixture for mounting the rotary polishing machine main body on a gantry.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 rail polishing machine main body 2 frame 3 rotary polishing machine 4 operating rod 5 grip handle 6 motors 7a, 7b wheels 10a, 10b guide plates 14a, 14b guide groove 15 gantry 16 gantry main body 19 mounting plates 21a, 21b adjusting rods 23a, 23b knob 25 Fixtures 26a, 26b Holding parts 30a, 30b Locking wheels

Claims (6)

A gantry on which wheels are mounted before and after the frame and a rotary grinder is mounted between the wheels is arranged. The gantry is rotatably mounted on the frame via guide means, and a rotational force is applied to the rotary polisher. A rail polishing apparatus, characterized in that an operating rod for transmission is connected, and a prime mover is provided on a side of the operating rod opposite to the rotary polishing machine. 2. The gantry according to claim 1, wherein the gantry includes a gantry main body, a mounting plate that expands and contracts with respect to the gantry main body, and a telescopic unit that expands and contracts the mounting plate, and a rotary grinder is mounted on the mounting plate. The rail polishing apparatus as described. 3. The rail polishing apparatus according to claim 2, wherein said expansion / contraction means comprises an adjusting rod attached to the gantry body and a nut screwed to said adjusting rod and fixed to said mounting plate. 2. A rail polishing machine according to claim 1, wherein said guide means comprises an arc-shaped guide groove and a sliding member inserted therein, one of which is provided on a frame and the other is provided on a gantry. apparatus. The rail polishing apparatus according to claim 1, wherein locking wheels for locking to a jaw of a rail head are attached to front and rear of the frame. The rail polishing apparatus according to claim 1, wherein a grip handle is attached to the operating rod.

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