JP2022172576A - Rail rust removal device - Google Patents

Abstract

To provide a rail rust removal device that can eliminate the need for adjusting the strength of pressure contact for a polishing member against the upper surface of a rail and that can obtain a stable polishing finish regardless of the skill of an operator.SOLUTION: A rail rust removal device 1 comprises: a carriage 2 that can move on rails; a rotating mechanism 4 that is disposed behind the upper surface of the carriage 2, and includes a rotating shaft 4a and a bearing 4b that rotatably supports the rotating shaft 4a attached to a bearing hole; a side frame 5 having a structure that is rotatably supported by one end in the longitudinal direction of the rotating shaft 4a and that rotatably supports a rod-like shaft part 5a; a disk-like polishing member 7 rotatably held on the shaft part 5a; and polishing member driving means that is fixed to the side frame 5 and rotates the shaft part 5a by applying power from a prescribed driving source.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a rail rust remover for polishing and removing rust from the upper surface of a railway rail.

When rust adheres to the upper surface (head surface) of railroad rails, the rust acts as an insulator and interferes with the flow of signal current, hindering the operation of vehicles. Therefore, conventionally, as a means for removing rust, for example, a rust remover that rolls a disk-shaped polishing (grinding) member along the upper surface of the rail has been used.

For example, the rail rust remover disclosed in Patent Document 1 has a base 53 held by front and rear wheels 51 and 52 rolling on a rail R, and a rear wheel of the base 53, as shown in FIG. 52 and a handle frame 54 provided in an upright state. A dust collector 60 for collecting ground rust is provided on the front side of the machine base 53, and a polishing device 70 for polishing the upper surface of the rail R, and the polishing device 70 and the dust collector 60 are provided on the rear side. An engine 56 is provided for driving the.

The engine 56 is supported on the upper stage of a rocking table 57, which is a two-stage stepped frame body. is connected to a rod-like adjusting rod 58 supported by the handle frame 54 .

The polishing apparatus 70 also includes a disk-shaped polishing member 55. The polishing member 55 is rotatably provided in a suspended state below the engine 56 (below the rocking table 57). is in contact with the upper surface of the rail R.

The dust collecting device 60 is driven by the engine 56 through the first belt transmission mechanism 63 , and the polishing device 70 is similarly driven by the engine 56 through the second belt transmission mechanism 64 .

An operating handle 59 is provided at the upper end of the adjusting rod 58. When the operating handle 59 is turned, the nut member 61 moves up and down along the threaded rod portion 58a at the lower end of the adjusting rod 58, and the swing base is moved. 57 moves up and down with the front wheel 51 as an axis. When the oscillating table 57 moves up and down, the polishing member 55 is appropriately pressed against the upper surface of the rail R, and the engine 56 is driven while pushing the handle frame 54 to move the machine base 53 along the rail R. Then, rust adhering to the upper surface of the rail R is removed by the rotation of the polishing member 55 . At this time, dust due to polishing is collected by the dust collector 60 .

JP 2010-240813 A

However, in the rail rust remover disclosed in Patent Document 1, when the polishing work progresses and the peripheral surface of the polishing member 55 is worn to some extent, the diameter of the polishing member 55 is reduced, and the pressure contact of the polishing member 55 against the upper surface of the rail R is reduced. strength decreases. Therefore, it is necessary to frequently operate the adjusting rod 58 to lower the height of the polishing member 55 to adjust the strength of the pressure contact, which complicates the polishing work.

Further, in the rail rust remover disclosed in Patent Document 1, since the timing (time interval) and the degree of adjustment for adjusting the strength of the pressure contact differ depending on the operator, the polishing finish of the upper surface of the rail R depends on the operator. There was also the problem that variations were likely to occur.

Furthermore, since the top surface of the rail R has unevenness due to rust, the polishing member 55 tends to bounce off the top surface of the rail R, and there is a problem that there are many places where the polishing is insufficient.

The present invention has been made in view of the above problems, and eliminates the need for adjusting the strength of pressure contact of the polishing member against the upper surface of the rail, and provides a stable polishing finish regardless of the skill of the operator. To provide a rail rust removing device capable of obtaining

A rail rust removing device according to the present invention is a rail rust removing device for polishing and removing rust from the upper surface of a railway rail, and includes, for example, a carriage that can move along the rail, a rotating shaft portion, and a bearing. A rotation mechanism disposed in front or rear of the upper surface of the carriage, which includes a bearing portion that rotatably supports the rotation shaft portion attached to the hole, and one end portion in the longitudinal direction of the rotation shaft portion. a side frame that is rotatably supported by the rim and has a structure that rotatably supports a rod-shaped shaft; a disc-shaped polishing member that is rotatably held by the rod-shaped shaft; a polishing member driving means for rotating the rod-shaped shaft portion by applying power from a predetermined driving source; Then, a notched hole is formed in the upper surface of the carriage so that the polishing member can pass through, and the rotating shaft is rotated downward by the load of the side frame, the polishing member driving means, and the polishing member, The polishing member held by the shaft portion of the side frame passes through the cut hole portion, and the lower end of the peripheral surface of the polishing member is pressed against the upper surface of the rail by the load of the side frame or the like.

By using the rail rust removing apparatus according to the present invention, the polishing member is always pressed downward with a substantially constant pressure equal to or higher than a specific value due to the downward biasing force of the polishing member driving means or the like. Even if the wear progresses, it is possible to perform the polishing work with the polishing member while maintaining the load on the upper surface of the rail. As a result, it is possible to dispense with the operation of adjusting the pressure contact strength of the polishing member, which has conventionally been performed manually by the operator, and to obtain a stable polishing finish regardless of the skill of the operator. can be done. In other words, it is possible to eliminate variations in polishing finish due to differences in the skill of workers.

Further, in the rail rust removing device according to the present invention, an L-shaped frame rotatably supported at the other end in the longitudinal direction of the rotating shaft is provided as a reinforcing frame. It is preferable that the L-shaped frame supported at each end of the frame and the side frame are parallel to each other when viewed from the front. Thereby, the load applied to the polishing member driving means and the side frame holding the polishing member can be shared with the L-shaped frame. That is, it becomes possible to reinforce the side frame by sharing the load.

Further, in the rail rust removing device according to the present invention, it is desirable that the L-shaped frame is configured such that the entire polishing member can be visually observed from the side of the device. As a result, the polishing member can be replaced without once removing the L-shaped frame.

Further, in the rail rust removing device according to the present invention, it is preferable that a torsion coil spring be attached to the rotating shaft portion of the rotating mechanism. As a result, the impact when the polishing member is pressed against the upper surface of the rail can be reduced.

In the rail rust removing device according to the present invention, it is desirable that the torsion coil spring is capable of adjusting the strength of pressure contact when the polishing member is pressed against the upper surface of the rail. As a result, the impact when the polishing member comes into pressure contact with the upper surface of the rail can be mitigated with higher accuracy.

Further, in the rail rust removing device according to the present invention, the side frame is configured to allow the polishing member to be detachable from the tip portion of the rod-shaped shaft portion, and to hold the polishing member rotatably. It is desirable to have a cantilever structure that holds the polishing member on one side that supports the portion. This facilitates replacement of the polishing member.

Further, in the rail rust removing apparatus according to the present invention, it is preferable that the polishing member driving means uses a motor as the predetermined driving source. As a result, a significant weight reduction can be achieved as compared with the conventional one.

Further, it is desirable that the rail rust removing device according to the present invention employs a flap wheel as the disk-shaped polishing member. This makes it possible to reduce the weight of the device body.

According to the rail rust removing apparatus of the present invention, it is possible to eliminate the need for adjusting the strength of the pressure contact of the polishing member against the rail upper surface, and furthermore, a stable polishing finish can be obtained regardless of the skill of the operator. be able to.

FIG. 1 is a side view schematically showing an example of the configuration of a rail rust removing device according to a first embodiment of the present invention. FIG. 2 is a plan view showing an example of the configuration of the rail rust removing device according to the first embodiment of the present invention. FIG. 3 is a front view showing an example of the configuration of the rail rust removing device according to the first embodiment of the present invention. FIG. 4 is a perspective view showing an example of the configuration of the rail rust removing device according to the first embodiment of the present invention. FIG. 5 is a perspective view showing an example of the configuration of the rail rust removing device according to the first embodiment of the present invention. FIG. 6 is a side view showing an example of the configuration of the second embodiment of the rail rust removing device according to the present invention. FIG. 7 is a diagram showing the configuration of a conventional rail rust remover.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a rail rust removing device according to the present invention will be described in detail below with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, in the specification and drawings of the present application, elements that can be described in the same manner may be denoted by the same reference numerals, thereby omitting redundant description.

<First embodiment>
A first embodiment of a rail rust removing device according to the present invention will be described in detail based on the drawings.

<Overall Configuration of First Embodiment>
FIG. 1 is a side view schematically showing an example of the configuration of a rail rust removing device according to a first embodiment of the present invention. FIG. 2 is a plan view showing an example of the configuration of the rail rust removing device according to the first embodiment of the present invention. FIG. 3 is a front view showing an example of the configuration of the rail rust removing device according to the first embodiment of the present invention. 4 and 5 are perspective views showing an example of the configuration of the rail rust removing device according to the first embodiment of the present invention.

The rail rust removing device 1 of the present embodiment is a device for polishing (grinding) and removing rust adhering to the upper surface of a rail R. , and polishes the upper surface of the rail R while moving along the rail R. That is, the rail rust removing device 1 polishes one rail R on each side.

Specifically, the rail rust removing device 1 has a carriage 2 that can move on the top surface of the rail R along the rail R, and a handle part 3 is detachably provided at the rear end of the top surface of the carriage 2. . The truck 2 has a rectangular upper surface that is elongated in the longitudinal direction of the rail and an inverted U-shaped cross section AA. ing. A front wheel 2b and a rear wheel 2c are rotatably supported in these wheel bearing holes 2a. That is, the rail rust removing device 1 moves along the rail R as the front wheel 2b and the rear wheel 2c roll on the rail R. As shown in FIG.

In addition, a rotating mechanism 4 rotatably supported on the upper surface of the carriage 2 is provided immediately before the handle portion 3 at the rear end portion of the upper surface of the carriage 2 . Specifically, the rotating mechanism 4 includes a rotating shaft 4a and a bearing portion 4b that rotatably supports the rotating shaft 4a mounted in a bearing hole so as to protrude to the left and right. A portion 4b is arranged in front of the handle portion 3 at the rear end of the upper surface of the carriage 2 . The bearing portion 4b is fixed to the upper surface of the carriage 2 by, for example, welding.

At the left end in the longitudinal direction of the rotating shaft 4a of the rotating mechanism 4, there is provided a side frame 5 which is rotatably supported to move a later-described polishing member downward and bring it into contact with the upper surface of the rail R. . Further, a torsion coil spring 4c is attached to the rotating shaft 4a of the rotating mechanism 4 in order to reduce the impact when the later-described polishing member presses against the upper surface of the rail R. As shown in FIG. Specifically, one end of the torsion coil spring 4c is locked to the upper surface of the carriage 2, and the other end is locked to a side frame (an L-shaped frame 5b described later) provided on the opposite side of the side frame 5, for example. It is

In addition, the side frame 5 has a structure in which a rod-shaped shaft portion 5a is passed through and rotatably supported. A polishing member-side pulley 6 is rotatably provided. A disk-shaped polishing member 7 is rotatably held between the front wheel 2b and the rear wheel 2c on the shaft portion 5a protruding inward (the opposite side surface of the polishing member-side pulley 6). That is, the side frame 5 of this embodiment has a cantilever structure in which the polishing member 7 is held on one side surface supporting the shaft portion 5a. In this embodiment, a flap wheel (see the reference below) is used as an example of the disk-shaped polishing member 7 . As a result, the weight of the device body can be reduced.
<Reference 1>
Homepage of Three F Giken Co., Ltd. Product information Original abrasive FP wheel (Flap wheel) Search on April 9, 2021
https://tfg.co.jp/product/item/abrasive/fp_wheel/?pathinfo=product/item/abrasive/fp_wheel
<Reference 2>
Riken Corundum Co., Ltd. Website Product Information Wheels Retrieved on April 30, 2021
https://www.rikencorundum.co.jp/product/getTypeData/5

A drive unit 8 is attached and fixed to the side frame 5 in a direction away from the rotation mechanism 4 . The drive unit 8 includes a motor 8a and a gearbox 8b, which are driving sources for the polishing member 7. For example, the side frame 5 and the gearbox 8b are fixed by screwing together with a tightening member. A gearbox-side pulley 9 is provided on the output shaft of the gearbox 8b, and a drive belt 10 is stretched between the gearbox-side pulley 9 and the polishing member-side pulley 6. As shown in FIG. Therefore, when the motor 8a is driven, the pulley 9 on the gearbox side rotates, the pulley 6 on the polishing member side rotates via the driving belt 10, and furthermore, the shaft portion 5a rotates in conjunction with the rotation of the pulley 6 on the polishing member side. Rotate. Thereby, the polishing member 7 rotates, for example, in the direction in which the rail rust removing device 1 advances. In addition, in this embodiment, by switching the driving source of the polishing member 7 from the conventional engine 56 to the motor 8a, a significant weight reduction can be realized as compared with the conventional one.

Further, in the present embodiment, a reinforcing frame for reinforcing the side frame 5 from the opposite side is rotatably supported on the right end of the rotation shaft 4a of the rotation mechanism 4 in the longitudinal direction of the rotation shaft 4a. In addition, an L-shaped frame 5b is provided. Specifically, an L-shaped frame 5b that supports the left and right ends of the rotating shaft 4a and the side frame 5 are connected by a rod-shaped reinforcing bar 5c so that both frames are parallel when viewed from the front, and screwed together. The structure is such that the reinforcing bar 5c is held between the two frames. That is, in the present embodiment, the side frame 5 is reinforced by adopting a structure in which the load applied to the side frame 5 holding the driving unit 8 and the polishing member 7 is shared with the L-shaped frame 5b.

Further, if the reinforcing frame has the same shape as the side frame 5, the polishing member 7 is sandwiched from both sides, and the polishing member 7 cannot be replaced without removing the reinforcing frame once. Therefore, in the present embodiment, the reinforcing frame is, for example, an L-shaped frame 5b having an L-shaped structure that allows the entire polishing member 7 to be visually observed from the side of the device, and it is possible to secure the replacement position of the polishing member 7. did. This makes it possible to replace the polishing member 7 without removing the L-shaped frame 5b while reinforcing the side frame 5 from the opposite side.

In addition, a notch hole 11 is formed in the upper surface of the carriage 2 so that the polishing member 7, which is moved to the upper surface of the rail R by a downward biasing force, can pass through. As a result, the rotating shaft 4a of the rotating mechanism 4 rotates downward due to the load of the drive unit 8, the side frame 5, etc., and the polishing member 7 attached to the side frame 5 passes through the notch hole 11, and the polishing member 7 moves downward. is in pressure contact with the upper surface of the rail R. At this time, the strength (load) of the pressure contact with the upper surface of the rail R depends on the biasing force due to the load of the drive unit 8, the side frame 5, the L-shaped frame 5b, the polishing member 7, etc., and the repulsive force of the torsion coil spring 4c. determined by It should be noted that the torsion coil spring 4c of this embodiment is replaceable, for example, in order to adjust the strength of pressure contact when the polishing member 7 is pressed against the upper surface of the rail R. As shown in FIG.

Further, the width dimension of the peripheral surface of the grinding member 7 is not particularly limited as long as it is provided so that the rail R can be sufficiently ground. On the other hand, the width dimension of the peripheral surface of the polishing member 7 is set to 50 mm.

<Details of rust removal work>
Next, details of the rust removal operation using the rail rust removal device 1 of the present embodiment configured as described above will be described.

For example, when an operator removes rust from the upper surface of the rail R, first, the front wheel 2b and the rear wheel 2c of the rail rust removing device 1 are placed on the rail R, and the lower end of the peripheral surface of the polishing member 7 is moved by the drive unit 8 or the like. is pressed against the upper surface of the rail R by the biasing force of the load. As a result, the load of the drive unit 8 or the like can always apply a substantially constant pressure of a specific value or more to the upper surface of the rail R without the operator having to perform an operation to adjust the strength of the pressure contact of the polishing member 7 .

Next, when the motor 8a is driven, the polishing member 7 starts rotating in conjunction with this. At this time, the polishing member 7 rotates while maintaining a predetermined rotation speed. Then, the operator holds the handle portion 3 from the rear of the rail rust removing device 1 while standing, and presses the rail rust removing device 1 forward to roll the front wheels 2b and the rear wheels 2c. move forward while balancing

When the polishing work is started, the polishing member 7 rotates while being pressed against the upper surface of the rail R with a substantially constant load. is polished away by Further, in this embodiment, since the polishing member 7 is always pressed against the upper surface of the rail R with a pressure equal to or higher than a specific value due to the load of the drive unit 8 or the like, behavior such as bouncing of the polishing member 7 can be suppressed. can.

After that, as the polishing work by the polishing member 7 progresses to some extent, the abrasion of the peripheral surface of the polishing member 7 also progresses. Here, although the diameter dimension of the polishing member 7 is reduced due to wear, the downward biasing force of the drive unit 8 or the like always presses the polishing member 7 downward with a substantially constant pressure equal to or higher than a specific value. , the peripheral surface of the polishing member 7 is pressed against the upper surface of the rail R while maintaining the load on the upper surface of the rail R. That is, in the rail rust removing device 1 of the present embodiment, for example, even if the polishing member 7 wears due to the continuation of the polishing work, while the polishing member 7 maintains a state capable of polishing, The peripheral surface of the polishing member 7 is always pressed against the upper surface of the rail R with the heavy load of the driving unit 8 and the like.

<Effects of the First Embodiment>
As described above, according to the present embodiment, since the downward biasing force of the drive unit 8 and the like always presses the polishing member 7 downward with a substantially constant pressure equal to or higher than a specific value, the abrasion of the polishing member 7 is reduced. Even if it progresses, the polishing work can be performed by the polishing member 7 while maintaining the load on the upper surface of the rail R. As a result, it is possible to dispense with the operation of adjusting the strength of the pressure contact of the polishing member 7, which has conventionally been performed manually by the operator, and furthermore, a stable polishing finish can be obtained regardless of the skill of the operator. be able to. In other words, it is possible to eliminate variations in polishing finish due to differences in the skill of workers.

In this embodiment, the side frame 5 is attached to the left end of the rotation shaft 4a of the rotation mechanism 4 in the longitudinal direction. It may be attached to the right end of the direction. In this case, all components including the side frame 5 (side frame 5, L-shaped frame 5b, polishing member side pulley 6, polishing member 7, drive unit 8, gear box side pulley 9, drive belt 10) are shown in FIG. Front view) is provided in the position of left-right inversion.

Further, in this embodiment, the driving unit 8, the gear box side pulley 9, the driving belt 10 and the polishing member side pulley 6 constitute polishing member driving means. Specifically, when the motor 8 a is driven in the polishing member driving means, the gear box side pulley 9 rotates and the polishing member side pulley 6 rotates via the driving belt 10 . As a result, the shaft portion 5a interlocked with the rotation of the polishing member-side pulley 6 rotates, and the polishing member 7 rotates interlocked with the rotation of the shaft portion 5a.

Further, in the present embodiment, a flap wheel is used as an example of the disk-shaped polishing member 7, but the present invention is not limited to this. It may be an abrasive member. In addition, unlike a whetstone, which is a general polishing member, for example, even if the abrasion of the polishing surface progresses due to continuation of the polishing work, the diameter of the flap wheel expands due to rotation, so it can be used for a long time. It is possible to maintain a constant diameter or more over time, and a uniform polishing finish can always be obtained.

Further, in this embodiment, there is a situation where the rotary shaft 4a of the rotary mechanism 4 rotates more vigorously than necessary and the drive unit 8 (motor 8a) directly contacts the carriage 2, and the rail rust removal device 1 does not run on the rail R. Considering the state where the polishing member 7 is not placed on the side frame 5 and the state where the polishing member 7 is not attached to the side frame 5, for example, the cushioning material 12 is installed at the position where the drive unit 8 and the carriage 2 come into contact. As a result, for example, damage to the drive unit 8 due to contact with the carriage 2 can be reduced, and the main body of the rail rust removing device 1 can be protected. Here, the means for protecting the drive unit 8 and the like is not limited to this, and any means may be used.

<Second embodiment>
Next, a second embodiment of the rail rust removing device according to the present invention will be described with reference to the drawings.

FIG. 6 is a side view showing an example of the configuration of the second embodiment of the rail rust removing device according to the present invention. In the rail rust removing device 1a of the present embodiment, the constituent elements other than the handle portion 3 mounted on the truck 2 are arranged so as to be reversed in the front-to-rear direction as compared with the rail rust removing device 1 of the first embodiment. It is. That is, the rail rust removing device 1a of the present embodiment has a rotating mechanism 4 arranged at the front end portion of the upper surface of the carriage 2, and a first rotating mechanism 4 which is arranged so that the polishing member 7, which is moved to the upper surface of the rail R by a downward biasing force, can pass through. In this embodiment, a cut hole portion 11 is formed at a position different from that of the embodiment.

Other components can be explained in the same manner as in the rail rust removing device 1 of the first embodiment, except that they are arranged so that the front and rear sides are reversed. omitted.

1, 1a Rail rust removal device 2 Carriage 2a Car bearing hole 2b Front wheel 2c Rear wheel 3 Handle 4 Rotation mechanism 4a Rotation shaft 4b Bearing 4c Torsion coil spring 5 Side frame 5a Shaft 5b L-shaped frame 5c Reinforcing bar 6 Grinding Member-side pulley 7 Polishing member 8 Drive unit 8a Motor 8b Gearbox 9 Gearbox-side pulley 10 Drive belt 11 Cut hole 12 Cushion material

Claims (8)

In a rail rust removing device for polishing and removing rust on the upper surface of railroad rails,
A trolley that can move along the rail,
a rotating mechanism disposed in front or rear of the upper surface of the carriage, comprising a rotating shaft portion and a bearing portion that rotatably supports the rotating shaft portion attached to the bearing hole;
a side frame that is rotatably supported by one end in the longitudinal direction of the rotating shaft and has a structure that rotatably supports the rod-shaped shaft;
a disk-shaped polishing member rotatably held on the rod-shaped shaft;
polishing member driving means fixed to the side frame and rotating the rod-shaped shaft portion by applying power from a predetermined driving source;
with
A notch hole is formed in the upper surface of the carriage so that the polishing member can pass through,
The rotating shaft portion is rotated downward by the load of the side frame, the polishing member driving means, and the polishing member, and the polishing member held by the shaft portion of the side frame passes through the cut hole portion, and the polishing is performed. The lower end of the peripheral surface of the member is pressed against the upper surface of the rail by the load.
A rail rust removing device characterized by: As a reinforcing frame for reinforcing the side frame from the opposite side, an L-shaped frame rotatably supported at the other end in the longitudinal direction of the rotating shaft is provided,
A rod-shaped reinforcing bar is sandwiched between both frames so that the L-shaped frame and the side frame supported by the left and right ends of the rotation shaft are parallel when viewed from the front,
The rail rust removing device according to claim 1, characterized in that: The L-shaped frame configures the entire polishing member to be visible from the side of the apparatus,
The rail rust removing device according to claim 2, characterized in that: A torsion coil spring is attached to the rotating shaft portion of the rotating mechanism to reduce impact when the polishing member is pressed against the upper surface of the rail.
The rail rust removing device according to claim 1, 2 or 3, characterized in that: The torsion coil spring enables adjustment of the strength of pressure contact when the polishing member is pressed against the upper surface of the rail.
The rail rust removing device according to claim 4, characterized in that: The side frame is
The polishing member is detachable from the tip of the rod-shaped shaft, and the polishing member is rotatably held,
a cantilever structure for holding the polishing member on one side that supports the rod-shaped shaft;
The rail rust removing device according to any one of claims 1 to 5, characterized in that: The polishing member driving means uses the predetermined driving source as a motor,
The rail rust removing device according to any one of claims 1 to 6, characterized in that: adopting a flap wheel as the disk-shaped polishing member;
The rail rust removing device according to any one of claims 1 to 7, characterized in that:

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