JP2022072683A - Rail re-profiling device - Google Patents

Abstract

To effectively use grinding surfaces of grinding belts that are wider than the width of rail heads and swiftly and accurately re-profile rail joints.SOLUTION: It includes a trolley body 11, a rail re-profiling part 12 provided on the trolley body 11, and a pressing plate elevating mechanism part 13 that is provided on the trolley body 11, raises and lowers a pressing plate 13b1 inside a re-profiling belt 12c across front and rear grinding belt rollers 12b,12b and re-profiles rail surfaces. In the front and rear parts of the trolley body 11 there is a wheel lateral slide mechanism part 14 which has plunger pins 14c which slide wheel support parts 11e,11e that rotatably support the wheels 11f,11f, respectively in the lateral direction of the intersecting rail with respect to the longitudinal direction of the rail and fixed at multiple positions, and lateral positioning plates, etc., which have the well-known LM guide comprising LM rails and LM blocks and multiple positioning holes.SELECTED DRAWING: Figure 1

Description

The present invention relates to a rail rectifying device in which a worker runs on a rail by pushing or pulling by hand to rectify a welded portion or the like of a rail joint portion.

As a rail rectifying device that rectifies the rail surface by a worker pushing or pulling it by hand, for example, it is wound around at least two rotating bodies (drive wheel and driven wheel) arranged at required intervals. A rail rectifying device has been proposed in which a part of an endless grinding belt is pressed against the rail surface by a grinding urging means to rectify the rail surface (see, for example, Patent Documents 1 and 2).

Japanese Patent Application Laid-Open No. 2003-53655 Japanese Unexamined Patent Publication No. 2020-125651

By the way, in the case of the rail grinders of Patent Documents 1 and 2 above, which grind the rail surface with a grinding (grinding) belt, the grinding belt does not come off from the front and rear rotating bodies (wheels), and the rail head is surely secured. A grinding belt that is more than twice as wide as the width of the rail head is usually used so that it can be corrected, but it is uneconomical because it uses only the central part of the grinding belt and does not use both the left and right sides. there were.

Further, in the case of a rail, accuracy is required at the rail joint, for example, the joint is corrected to a height of 1 mm or less, such as 0.3 mm to 0.5 mm, with respect to a predetermined front-rear length. However, in the rail grinder of Patent Document 1 described above, since the grinding urging means is configured to press the grinding belt against the rail surface by an elastic body such as a spring, the elastic body is formed when the rail surface is trimmed. There was a problem that it could not expand and contract to correct the rail surface quickly and accurately.

Further, in the rail grinding device of Patent Document 2, the belt pressing plate that presses the grinding belt against the rail surface is provided on the rail grinding portion via the swing shaft so as to be swingable. However, there is also a problem that the amount of pushing down the grinding belt and the pushing force cannot be adjusted, and the rail surface cannot be corrected quickly and accurately.

Therefore, the present invention has been made by paying attention to such a problem, and can effectively utilize the grinding surface of the grinding belt having a width wider than the width of the rail head, and can quickly and accurately make the rail joint portion. It is an object of the present invention to provide a rail rectifying device capable of rectifying.

In order to solve the above problems, the rail grinder according to the present invention is provided between a trolley main body provided with a hand push handle for a worker to grasp, push and pull by hand, and between the front and rear wheels of the trolley main body. It is located inside the rail grinding part that rotates the grinding belt passed between the front and rear rollers by a drive source such as an engine or motor, and the grinding belt provided on the trolley body and passed between the front and rear rollers. It is equipped with a pressing plate elevating mechanism that lowers the pressed plate to press the grinding belt against the rail surface and corrects the rail surface, and rotatably supports the wheels on the front and rear of the trolley body. It is characterized in that a wheel lateral slide mechanism portion is provided which slides the wheel support portion to be slid in the lateral direction intersecting the longitudinal direction of the rail and fixes the wheel support portion at a predetermined plurality of positions.
Further, in the rail rectifying device according to the present invention, the pressing plate elevating mechanism portion slides in the vertical direction on the pressing plate elevating mechanism portion main body fixed to the trolley main body and the pressing plate elevating mechanism portion main body. It is possible to provide the pressing plate at the lower end, and it is provided on the pressing plate elevating body that elevates and lowers by the rotation of the pressing plate elevating screw rod and on the pressing plate elevating mechanism main body. It is also characterized by having a rotating handle for raising and lowering the pressing plate by rotating the screw rod for raising and lowering the pressing plate by a worker to rotate the lifting body for the pressing plate.
Further, in the rail rectifying device according to the present invention, the rotary handle for raising and lowering the pressing plate is provided at the upper end of the rotating shaft for raising and lowering the pressing plate, and is provided at the lower end of the rotating shaft for raising and lowering the pressing plate. Is provided with a small-diameter gear having a small number of teeth, while a large-diameter gear having a large number of teeth that mesh with the small-diameter gear is provided at the upper end of the screw rod for raising and lowering the pressing plate. ..
Further, in the rail rectifying device according to the present invention, the front and rear wheels of the trolley body are left-right asymmetric wheels, respectively, and the inner ring having a width substantially the same as the width of the head of the rail and the left and right inner rings thereof. Each side has a small-diameter outer ring having a diameter larger than the inner ring and a large-diameter outer ring having a diameter larger than the small-diameter outer ring. The handle grip portion and a pair of handle vertical rod portions extending downward from the left and right sides of the handle grip portion and passing through the left and right sides of the trolley body are formed in a U-shape or a U-shape, while the trolley body. On the front, back, left and right sides, a handle vertical bar through sleeve portion is provided through which a pair of handle vertical bar portions of the hand-push handle are passed in the vertical direction, and the handle vertical bar through sleeve portion is provided with the handle vertical bar portion. A handle height fixing screw portion for fixing the rod portion at an arbitrary height is provided, and the lower end portions of the pair of handle vertical rod portions of the hand-push handle provided in the front and rear of the trolley body are respectively in the front and rear of the trolley body. The wheel may be fixed by the handle height fixing screw portion in a state of protruding downward from the wheel, and the wheel may be lifted from the ground by the push handle provided on the front and rear of the trolley body. It is a feature.
Further, the rail grinder according to the present invention is also characterized in that the bogie main body is provided with a rail grinder observation mirror for the operator to observe the rail grinder by the rail grinder. And.

In the rail grinder according to the present invention, the rail is pressed against the rail surface by lowering the trolley body, the rail grinder that rotates the grinder, and the pressing plate located inside the grinder. It is equipped with a push plate elevating mechanism that corrects the surface, and a wheel support that rotatably supports the wheels is slid in the lateral direction that intersects the longitudinal direction of the rail, respectively, in front of and behind the trolley body. A wheel lateral slide mechanism portion that is fixed at a plurality of positions is provided.
Therefore, according to the present invention, by sliding the bogie body provided with the grinding belt in the lateral direction intersecting the longitudinal direction of the rail and fixing it at a predetermined position, not only the central portion of the grinding belt but also the left and right sides are fixed. Therefore, the grinding surface of the grinding belt having a width wider than the width of the rail head can be effectively utilized, and the cost can be reduced.
Further, according to the present invention, the grinding belt is pressed against the rail head surface while adjusting the pushing amount and pressing force of the grinding belt by raising and lowering the pressing plate itself, and the grinding belt is corrected to the rail head surface. The pressing plate is directly attached to the lower end of the lifting body for the pressing plate, and an elastic body such as a spring does not intervene between the pressing plate and the pressing plate, and the pressing plate does not swing, so that the rail The correction work can be performed reliably and efficiently.

It is a front view of the rail rectifying device of embodiment which concerns on this invention. It is an enlarged front view of the main part of the rail grinder of the embodiment which concerns on this invention. It is a rear view of the rail rectifying device of embodiment which concerns on this invention. It is a top view of the rail rectifying device of embodiment which concerns on this invention. It is a left side view of the rail rectifying device of the embodiment which concerns on this invention. It is a left side view of the main part of the rail grinder of the embodiment which concerns on this invention. It is an enlarged front view of the main part of the wheel lateral slide mechanism part in the rail rectifying device of embodiment which concerns on this invention. It is an enlarged bottom view of the main part of the wheel lateral slide mechanism part in the rail rectifying device of the embodiment which concerns on this invention. It is an enlarged view of the main part which shows the state which made the wheel support part and the lateral slide of a wheel free in the wheel lateral slide mechanism part in the rail rectifying device of embodiment which concerns on this invention. In the wheel lateral slide mechanism portion of the rail rectifying device according to the present invention, the lower end portion of the plunger is fitted into the central positioning hole, and the wheel support portion and the wheel are fixed (locked) to the lateral center of the bogie body. It is an enlarged view of the main part which shows the state which was done. In the wheel lateral slide mechanism portion of the rail rectifying device according to the present invention, the wheel support portion and the wheel are slid to the right in the drawing, and the lower end portion of the plunger is fitted into the positioning hole on the left side to fit the wheel support portion. It is an enlarged view of a main part showing a state in which the wheels are shifted to the right of the bogie body and fixed (locked). In the wheel lateral slide mechanism portion of the rail rectifying device according to the present invention, the wheel support portion and the wheel are slid to the left in the drawing, and the lower end portion of the plunger is fitted into the positioning hole on the right side to fit the wheel support portion. It is an enlarged view of a main part showing a state in which the wheels are shifted to the left of the bogie body and fixed (locked).

Hereinafter, the rail rectifying device 1 according to the embodiment of the present invention will be specifically described with reference to the drawings. It should be noted that the embodiment described below is merely an example of the present invention, and the rail grinder 1 of the embodiment according to the present invention can be appropriately changed within the scope of the technical idea of the present invention.

<Structure of Rail Grinder 1 of the Embodiment>
In the rail rectifying device 1 of the embodiment according to the present invention, the rail surface is rectified by the grinding belt 12c while the worker pushes the rail by hand and runs on the rail. As shown in FIGS. 1 to 4, the trolley is used. It is configured to include a main body 11, a rail grinding portion 12, a pressing plate elevating mechanism portion 13, a wheel lateral slide mechanism portion 14, and the like.

(Bogie body 11)
As shown in FIG. 4 and the like, the dolly body 11 projects forward or backward from the front and rear of the rectangular dolly body frame 11a, and the wheel supporting protrusions 11b and 11b that support the wheels 11f and 11f are welded or the like. The front and rear wheel support protrusions 11b and 11b are provided with wheel support portions 11e and 11e that rotatably support the wheels 11f and 11f, respectively, intersecting (orthogonal) with respect to the longitudinal direction of the rail. The wheel lateral slide mechanism portion 14 is provided so as to slide the rail laterally and fix it at a plurality of predetermined positions. The configuration of the wheel lateral slide mechanism portion 14 and the like will be described later.

Here, the front and rear wheels 11f and 11f are left-right asymmetric wheels as shown in FIGS. 5 and 6, respectively, and each has a width substantially equal to or slightly larger than the width of the rail head. It has an inner ring 11f1, 11f1, and a small diameter outer ring 11f2, 11f2 and a large diameter outer ring 11f3, 11f3 provided on the left and right sides of the inner ring 11f1, 11f1 and having different diameters.

Therefore, when grinding the tread surface (top surface) of the head of the rail 4 without inclining the rail rectifying device 1, the inner rings 11f1, 11f1 of the front and rear wheels 11f, 11f are the tread surface (top surface) of the head of the rail. The hand-pushed handles 11h and 11h will be described later so that the left and right sides of the rail head are located between the inner side surfaces of the small diameter outer rings 11f2, 11f2 and the inner side surfaces of the large diameter outer rings 11f3, 11f3. The rod portions 11h2 and 11h2 are made vertical, and the grinding belt 12c described later of the rail grinding portion 12 is brought into contact with the tread surface (top surface) of the rail head in parallel to grind.

At that time, since the front and rear wheels 11f and 11f each have inner rings 11f1, 11f1 that are substantially the same as or slightly larger than the width of the rail head, the front and rear wheels 11f and 11f have small diameter outer rings 11f2 and 11f2 and The large-diameter outer rings 11f3 and 11f3 can grind the tread surface (top surface) of the head of the rail while guiding the back-and-forth movement of the rail 4 in the longitudinal direction.

Further, when the rail rectifying device 1 is tilted and the corners and side surfaces of the rail head are ground by the grinding belt 12c of the rail rectifying portion 12, the small diameter outer rings 11f2 and 11f2 sides of the wheels 11f and 11f are lowered and , The large-diameter outer rings 11f3, 11f3 sides of the wheels 11f, 11f are tilted so as to abut on the tread surface (top surface) of the head of the rail.

When the rail rectifying device 1 is tilted to grind the corners and side surfaces of the rail head in this way, the small diameter outer rings 11f2 and 11f2 do not interfere with the abdomen of the rail because the diameters of the small diameter outer rings 11f2 and 11f2 are small, and the large diameter outer ring. Since 11f3 and 11f3 can receive the load of the rail grinder 1 on the rail by riding on the tread (top surface) of the head of the rail, the load of the rail grinder 1 is not applied to the worker. It is also possible to correct the corners and sides of the rail head in the same way as in the case of correcting the tread surface (top surface) of the rail head.

Further, on the front and rear of the rectangular bogie body frame 11a of the bogie body 11, a pair of handle vertical bar portions 11h2 and 11h2, which will be described later, are passed through the hand push handles 11h and 11h, respectively, in the vertical direction. The handles 11i and 11i are provided, and the handle vertical bar through sleeve portions 11i and 11i are provided with handle height fixing screw portions for fixing the handle vertical bar portions 11h2 and 11h2 of the hand-pushed handles 11h and 11h at arbitrary heights. 11j and 11j are provided.

The hand-push handles 14e are provided on the front and rear of the bogie body 11, respectively, and have a handle grip portion 14e1 having a length substantially equal to the lateral width of the bogie body frame 11a in the horizontal direction to be gripped by the worker, and a handle grip portion thereof. It is formed in a U-shape or a U-shape with a pair of handle vertical bar portions 11h2 and 11h2 extending downward from the left and right sides of the 14e1 and passing through the left and right sides of the bogie body 11, and the handle grip portion 14e1 is made of rubber or the like. The non-slip 14e11 is provided.

As a result, the worker grabs the handle grips 14e1 of the hand-push handles 11h and 11h provided on the front and rear of the trolley body 11 by one or two people and pushes or pulls the trolley body 11 to correct the surface of the rail. be able to.

Further, the handle height fixing screw portion 11j is in a state where the lower end portions of the handle vertical rod portions 11h2 and 11h2 of the front and rear hand-push handles 11h and 11h of the bogie main body 11 are projected downward from the front and rear wheels 11f and 11f of the bogie main body 11. By fixing with, 11j, the front and rear wheels 11f and 11f are floated from the ground and floor by the hand-push handles 11h and 11h provided on the front and rear of the bogie main body 11, and the rail rectifying device 1 can be stored or the rail can be used. It can be temporarily evacuated to a nearby roadbed or the like.

Therefore, the rail rectifying device 1 is a left-right asymmetric wheel in which the front and rear wheels 11f and 11f have small diameter outer rings 11f2 and 11f2 and large diameter outer rings 11f3 and 11f3 on both left and right sides thereof via the inner rings 11f1 and 11f1. Although it is difficult to place the wheels 11f and 11f on the floor, the front and rear wheels 11f and 11f have large diameter outer rings 11f and 11f3 so that they float from the ground or the floor. By projecting the lower end portion of 11h2, 11h2, the rail rectifying device 1 can be supported at four points of the lower end portion of the handle vertical bar portion 11h2, 11h2.

Further, on the left and right sides of the bogie body frame 11a, on the large diameter outer rings 11f3, 11f3 side, as shown in FIGS. The state observation mirror 11k is mounted so that the angle can be changed by the mirror mounting frame 11k1.

Here, the reason why the grinding state observation mirror 11k is attached to the large diameter outer rings 11f3, 11f3 side of the wheels 11f, 11f in the left and right sides of the rail body frame 11a is that the small diameter outer rings 11f2, 11f2 side of the wheels 11f, 11f are attached. When grinding the corners and side surfaces of the rail head with the grinding belt 12c of the rail grinding portion 12, it may be located below the rail head as described later, and the grinding condition observation mirror 11k is a roadbed. This is because they interfere with each other.

(Rail grinder 12)
The rail grinding portion 12 is provided inside the bogie body frame 11a of the bogie body 11 and is provided between the front and rear wheels 11f and 11f, and is passed between the front and rear rollers 12b and 12b by a drive source 12a such as an engine or a motor. The grinding belt 12c is rotated, and the structure of the rail grinding portion 12 is, for example, substantially the same as that disclosed in the above-mentioned Patent Document 2 (Japanese Unexamined Patent Publication No. 2020-125651).

(Press plate elevating mechanism unit 13)
The pressing plate elevating mechanism portion 13 is provided on the trolley main body 11 and raises and lowers the pressing plate 13b1 located inside the grinding belt 12c passed between the front and rear rollers 12b and 12b to raise and lower the engine, motor, and the like. The lower grinding belt 12c that rotates between the rollers 12b and 12b is pressed downward by the drive source 12a to correct the surface of the rail head, and the pressing plate elevating mechanism main body fixed to the trolley main body 11 is used. A pressing plate 13b1 is provided at the lower end portion of the 13a, and is composed of a pressing plate supporting elevating body 13b or the like which is moved up and down (reciprocating) in the vertical direction by the pressing plate elevating mechanism main body 13a.

The pressing plate elevating mechanism main body 13a is a well-known LM guide that is fixed to the trolley main body 11 and supports the pressing plate supporting elevating body 13b provided with the pressing plate 13b1 so as to be able to move up and down (reciprocate) in the vertical direction. It has LM rails 13a1, 13a1 to be configured, and raises and lowers the pressing plate support elevating body 13b by the rotation of the pressing plate elevating screw rod 13a2 rotatably supported between the LM rails 13a1, 13a1. A large-diameter gear 13a3 having a large number of teeth is provided at the upper end of the backing plate elevating screw rod 13a2.

The large-diameter gear 13a3 is meshed with a small-diameter gear 13a5 having a small number of teeth provided at the lower end of the rotary shaft 13a4 for raising and lowering the pressing plate. A rotary handle 13a6 for raising and lowering the pressing plate is provided for a member to grasp and rotate the rotating shaft 13a4 for raising and lowering the pressing plate.

The pressing plate support elevating body 13b smoothly moves up and down on both the left and right sides by the LM rails 13a1 and 13 of the pressing plate elevating mechanism main body 13a, and the lower grinding belt 12c is pushed downward from the inside to the lower end portion. A pressing plate 13b1 is provided which is lowered to press the grindstone surface of the grinding belt 12c against the rail.

Therefore, when the worker grasps and rotates the rotary handle 13a6 for raising and lowering the pressing plate, the rotating shaft 13a4 for raising and lowering the pressing plate rotates and the screw rod for raising and lowering the pressing plate via the small diameter gear 13a5 and the large diameter gear 13a3. 13a2 also rotates, and the pressing plate support elevating body 13b provided with the pressing plate 13b1 can be moved up and down, that is, moved up and down along the LM rails 13a1 and 13a1.

In particular, in the pressing plate elevating mechanism portion 13 of the present embodiment, when the worker grabs and rotates the pressing plate elevating rotary handle 13a6, the small diameter gear 13a5 having a small number of teeth becomes the large diameter gear 13a3 having a large number of teeth. Since the meshing and pressing screw rod 13a2 is rotated to raise and lower the pressing plate 13b1, the height of the pressing plate 13b1 can be finely adjusted, and the welded portion of the rail is accurately corrected. be able to.

(Wheel lateral slide mechanism portion 14)
As described above, the wheel lateral slide mechanism portion 14 is provided on the wheel support projecting plates 11b, 11b provided so as to project forward or backward on the front and rear of the trolley main body frame 11a, respectively, and the wheels 11f, 11f and, respectively. A mechanism for fixing the wheel support portions 11e and 11e at a plurality of predetermined positions (for example, three locations in the present embodiment) by sliding the wheel support portions 11e and 11e in the lateral direction of the rail intersecting the longitudinal direction of the rail, and FIGS. As shown in the above, the wheel supporting protrusions 11b and 11b are formed with sleeve through holes through which the plunger elevating sleeves 14a and 14a pass, respectively, and the sleeve fixing nuts 14b and 14b are provided in the sleeve through holes. The plunger pin 14c is always urged downward (pushed) by a spring (not shown) or the like on the plunger elevating sleeves 14a and 14a which are screwed and attached to the sleeve fixing nuts 14b and 14b. It is provided so that it can be raised and lowered (moved up and down) in the lowered state.

Further, the upper ends of the plunger raising / lowering sleeves 14a and 14a are provided with the plunger pin raising / lowering inclined surfaces 14a1 and 14a1, while the upper ends of the plunger pin 14c are provided with the plunger pin raising / lowering by being rotated by an operator. Plunger pin rotary levers 14d that come into contact with the inclined surfaces 14a1 and 14a1 are provided, and the plunger pin 14c is moved up and down by the operator rotating the plunger pin rotary lever 14d, and the hands are moved from the plunger pin rotary lever 14d. When separated, it is configured to be pushed downward by a spring (not shown) or the like.

On the other hand, on the upper surface of the wheel support portions 11e and 11e that rotatably support the wheels 11f and 11f, a lateral positioning plate 14e is provided so as to face the lower end portion of the plunger pin 14c, and lateral positioning thereof is provided. The plate 14e is provided with, for example, three positioning holes 14e1, 14e2, 14e3 having an inner diameter into which the lower end of the plunger pin 14c is inserted and having a predetermined interval in the lateral direction of the rail intersecting the longitudinal direction of the rail. There is.

Further, LM rails 14f and 14f constituting a well-known LM guide intersect with each other in the longitudinal direction of the rails on the back surface (lower surface) side of the wheel support projecting plates 11b and 11b projecting from the front and rear of the trolley body frame 11a. While the rail is extended in the lateral direction, a well-known LM guide is formed on the upper surface side of the lateral positioning plate 14e together with the LM rails 14f and 14f, and is guided by the LM rails 14f and 14f to the length of the rail. LM blocks 14g and 14g that reciprocate in the lateral direction of the rails that intersect with each other are provided, and the wheels 11f and 11f and the wheel support portions 11e and 11e are the LM rails 14f and 14f and the LM block with respect to the trolley body frame 11a. A well-known LM guide consisting of 14 g and 14 g is configured to be slid in the lateral direction of the rail intersecting the longitudinal direction of the rail.

Therefore, when the operator rotates the plunger pin rotation lever 14d to raise and lower the plunger pin 14c along the plunger pin elevating inclined surface 14a1 as shown in FIG. 9, the lower end portion of the plunger pin 14c becomes the lateral positioning plate 14e. The wheel support portions 11e and 11e that are separated from the three positioning holes 14e1, 14e2 and 14e3 and to which the lateral positioning plate 14e is fixed become free, and the wheels 11f and 11f and the wheel support portions 11e and 11e are railed with respect to the bogie body frame 11a. When the worker releases the plunger pin rotation lever 14d in the lateral direction, the plunger pin 14c is lowered by a spring (not shown) or the like, and the lower end portion of the plunger pin 14c is positioned laterally. Since it fits into any of the three positioning holes 14e1, 14e2, 14e3 of the plate 14e, the positions of the wheels 11f, 11f and the wheel support portions 11e, 11e are railed with respect to the bogie body 11 by the three positioning holes 14e1, 14e2, 14e3. It is possible to shift in the lateral direction of.

<Operation of the rail rectifying device 1 of the embodiment>
Next, the operation of the rail rectifying device 1 of the embodiment configured as described above will be described.

(When the head of the rail is rectified by using the rail rectifying device 1 of the embodiment)
When the head of a rail such as a welded portion between rails is rectified by using the rail rectifying device 1 of the embodiment, for example, two workers handle the front and rear hand push handles of the rail rectifying device 1 respectively. Grasp the handle grips 11h1 and 11h1 of 11h and 11h, carry them to the rail grinder, and place the front and rear wheels 11f and 11f of the rail grinder 1 on the rail. For example, the rail grinder is the rail grinder. It is installed so as to be located between the front and rear wheels 11f and 11f of the device 1.

Next, the worker interferes with the correction work by projecting the lower end portions of the handle vertical bars 11h2 and 11h2 of the hand-pushed handles 11h and 11h, respectively, in the front and rear of the trolley body 11 below the wheels 11f and 11f, for example. If it interferes with the forward / backward movement, loosen the handle height fixing screw portions 11j and 11j so that the handle vertical rod portions 11h2 and 11h2 do not come off from the bogie body 11, and the lower end portion of the handle vertical rod portion 11h2 and 11h2 is scraped. After raising the height to a height that does not interfere with the normal work, tighten it to fix the handle vertical rod portions 11h2 and 11h2.

Next, the worker appropriately rotates the rotary handle 13a6 for elevating the pressing plate of the pressing plate elevating mechanism unit 13 to lower the pressing plate 13b1 located inside the grinding belt 12c, and the pressing plate 13b1. The grinding belt 12c passing below is pushed down from the upper surface side, and the rotating grinding belt 12c is pressed against the surface of the head of the rail to correct it.

Since the pressing plate 13b1 of the rail grinding device 1 of the present embodiment is directly attached to the lower end portion of the lifting body 13c for the pressing plate and does not intervene with an elastic body such as a spring, the elastic body is formed when the rail surface is ground. It is no longer possible to expand and contract or the pressing plate 13b1 swings to accurately correct the rail surface, and the rail correction work can be performed reliably and efficiently.

Further, in the rail grinder 1 of the present embodiment, the rail grinder frame 11a is provided with a rail grinder observation mirror 11k for observing the rail grinder by the rail grinder 12, so that the worker can use it. Since the rail rectification state can be observed by the grinding belt 12c with the rectification state observation mirror 11k, the rail rectification work can be performed reliably and efficiently in this respect as well.

Further, in the rail grinder 1 of the present embodiment, since the rail grinder 11k is attached to the large diameter outer rings 11f3, 11f3 side of the left and right sides of the rail grinder frame 11a, the rail grinder 12 is ground. Even when the corners of the head of the rail and the side surface of the rail are corrected by the belt 12c, the correction state observation mirror 11k does not lift up and come into contact with the roadbed, the pillow, etc., and hinder the work. However, the rail rectification work can be performed reliably and efficiently.

Here, in the rail rectifying device 1 of the embodiment, since the grinding belt 12c wider than the width of the head of the rail is used, the lower end portion of the plunger pin 14c is the lateral positioning plate 14e as shown in FIG. Of the three positioning holes 14e1, 14e2, 14e3, when the center positioning holes 14e1, 14e2 are inserted and fitted, only the central portion of the grinding belt 12c is worn, while the left and right side portions are worn. It is uneconomical without wear.

Therefore, the worker rotates the plunger pin rotation lever 14d as shown in FIG. 9 in the front and rear wheel lateral slide mechanism portions 14 and 14 provided on the front and rear wheel support protrusions 11b and 11b of the front and rear wheel main body 11. When the plunger pin 14c is raised along the inclined surface 14a1 for raising and lowering the plunger pin, the lower end portion of the plunger pin 14c is disengaged from the central positioning hole 14e2 of the lateral positioning plate 14e, and the wheel provided with the lateral positioning plate 14e. The support portions 11e and 11e are free.

Next, the worker either left or right the wheels 11f, 11f and the wheel support portions 11e, 11e in the front and rear wheel lateral slide mechanism portions 14, 14 provided on the front and rear wheel support protrusions 11b, 11b before and after the bogie main body 11. While sliding in the direction of, the plunger pin 14c is lowered by releasing the hand from the plunger pin rotation lever 14d, and the lower end portion of the plunger pin 14c is, for example, on the right side of the lateral positioning plate 14e as shown in FIG. Fit into the positioning hole 14e1 or fit into the positioning hole 14e3 on the left side of the lateral positioning plate 14e as shown in FIG. 12 to fix the lateral positions of the wheel support portions 11e and 11e to the bogie main body 11. Therefore, the right side or the left side of the grinding belt 12c, which is not the central portion of the grinding belt 12c, can be used.

Therefore, in the rail rectifying device 1 of the embodiment, even when the grinding belt 12c wider than the width of the head of the rail is used, the wheel support portion 11e is provided with respect to the bogie main body 11 as shown in FIGS. 11 and 12. By shifting the positions of the wheels 11f and 11f laterally, not only the central part of the grinding belt 12c but also the left and right sides thereof can be used, so that the life of the grinding belt 12c can be extended by nearly three times. Is possible, and the cost can be reduced.

(When the rail rectifying device 1 of the embodiment is not used for storage, etc.)
When the rail rectifying device 1 of the embodiment is not used for storage, etc., the lower end portions of the handle vertical bar portions 11h2, 11h2 of the hand-push handles 11h and 11h, respectively, are attached to the front and rear wheels 11f and 11f of the bogie body 11. The wheels 11f and 11f are floated by projecting downward, and in that state, the handle height fixing screw portions 11j and 11j are tightened to fix the handle vertical rod portions 11h2 and 11h2 to the handle vertical rod passing sleeve portions 11i and 11i.

Therefore, the rail rectifying device 1 of the embodiment is in a state where the wheels 11f, 11f having the small diameter outer rings 11f2, 11f2 and the large diameter outer rings 11f3, 11f3 having different diameters float on the floor surface of a warehouse or the like without touching (contacting). Can be stored or temporarily placed near the rail, so the rail rectifying device 1 can be placed independently without leaning against a wall or the like in a warehouse or the like, and is space-efficient and space-efficient. In addition to being able to store in a stable state, it is also possible to temporarily place it in a vertical state without tilting it when temporarily placing it near the rail during rail rectification work, improving work efficiency. At the same time, the correction work can be performed safely.

<Main effects of the rail rectifying device 1 of the embodiment>
In the rail grinder 1 of the embodiment according to the present invention, between the trolley main body 11 provided with the hand push handle 14e for the worker to grasp, push and pull by hand, and the front and rear wheels 11f and 11f of the trolley main body 11. A rail grinder 12 that rotates a grinding belt 12c passed between the front and rear rollers 12b and 12b by a drive source 12a of an engine, a motor, etc. It is provided with a pressing plate elevating mechanism portion 13 for pressing the grinding belt 12c passing under the rail surface against the rail surface by lowering the pressing plate 13b1 located inside the grinding belt 12c passed between them. A plurality of wheel support portions 11e and 11e that rotatably support the wheels 11f and 11f are slid on the front and rear of the trolley body 11 in the lateral direction of the rail intersecting the longitudinal direction of the rail (here, in this case). A wheel lateral slide mechanism portion 14 having a plunger pin 14c fixed at three positions), a lateral positioning plate 14e having three positioning holes 14e1, 14e2, 14e3, and the like is provided.

Therefore, according to the rail rectifying device 1 of the embodiment according to the present invention, even when a grinding belt 12c wider than the width of the head of the rail is used, the trolley main body 11 is shown as shown in FIGS. 10 to 12. By shifting the positions of the wheel support portions 11e and 11e and the wheels 11f and 11f in the center and lateral directions, not only the central portion of the grinding belt 12c but also the left and right sides thereof can be used, so that the grinding belt 12c can be used. It is possible to extend the life of the wheel nearly three times and reduce the cost.

Further, in the rail rectifying device 1 of the embodiment according to the present invention, the pressing plate elevating mechanism portion 13 is the pressing plate elevating mechanism portion main bodies 13a and 13a fixed to the front and rear of the trolley main body 11, respectively, and the pressing plate. The elevating mechanism unit main body 13a, 13a is provided so as to be slidable in the vertical direction, and the pressing plate 13b1 is provided at the lower end portion. 13b and the push plate elevating screw rod 13a2 provided on the upper part of the pressing plate elevating screw rod 13a2 rotatably supported by the pressing plate elevating mechanism main body 13a, and by being rotated by an operator, the pressing plate elevating screw rod 13a2 and a small diameter gear. It has a pressing plate elevating rotary handle 13a6 for rotating the pressing plate elevating screw rod 13a2 to elevate the pressing plate elevating body 13b via the 13a5 and the large-diameter gear 13a3.

Therefore, according to the rail grinder 1 of the embodiment according to the present invention, the grinding belt 12c is placed on the surface of the rail head while adjusting the pushing amount and pressing force of the grinding belt 12c by raising and lowering the pressing plate 13b1 itself. Is pressed against the rail head surface to correct the rail head surface accurately and reliably, and the pressing plate 13b1 is directly attached to the lower end of the pressing plate elevating body 13c. Since there is no intervening elastic body such as a spring, the elastic body does not expand or contract when the rail surface is rectified, or the pressing plate 13b1 swings and the rail surface cannot be rectified accurately. Can be done efficiently.

Further, in the rail rectifying device 1 of the embodiment according to the present invention, the rotary handle 13a6 for raising and lowering the pressing plate of the pressing plate elevating mechanism portion 13 is provided at the upper end portion of the rotating shaft 13a4 for raising and lowering the pressing plate. A small diameter gear 13a5 having a small number of teeth is provided at the lower end of the pressing plate elevating rotary shaft 13a4, while a tooth that meshes with the small diameter gear 13a5 is provided at the upper end of the pressing plate elevating screw rod 13a2. A large number of large-diameter gears 13a3 are provided.

Therefore, according to the rail grinder 1 of the embodiment according to the present invention, the worker grasps and rotates the rotary handle 13a6 for raising and lowering the pressing plate, so that the small diameter gear 13a5 having a small number of teeth and the large gear 13a5 having a large number of teeth are large. Since the pressing plate 13b1 is moved up and down by rotating the pressing plate elevating screw rod 13a2 via the diameter gear 13a3, the height of the pressing plate 13b1 can be finely adjusted, and the welded portion of the rail etc. can be accurately adjusted. Can be corrected to.

Further, in the rail rectifying device 1 of the embodiment according to the present invention, the front and rear wheels 11f and 11f of the bogie main body 11 are left-right asymmetric wheels, respectively, and have substantially the same width as the width of the head of the rail. The inner ring 11f1 has a small diameter outer ring 11f2 having a diameter larger than that of the inner ring 11f1 and a large diameter outer ring 11f3 having a diameter larger than the small diameter outer ring 11f2 on the left and right sides of the inner ring 11f1, respectively. A handle grip portion 14e1 provided on the front and rear of the main body 11 and gripped by a worker, and a pair of handle vertical rod portions 11h2 and 11h2 extending downward from the left and right sides of the handle grip portion 14e1 and passing through the left and right sides of the bogie body. It is formed in a U-shape or a U-shape.

The front, rear, left and right sides of the trolley body 11 are provided with handle vertical bar passing sleeve portions 11i and 11i through which a pair of handle vertical bar portions 11h2 and 11h2 of the hand push handle 14e are passed in the vertical direction. The vertical bar through sleeve portions 11i and 11i are provided with handle height fixing screw portions 11j and 11j for fixing the handle vertical bar portions 11h2 and 11h2 at arbitrary heights, and are manually pushed provided on the front and rear of the trolley main body 11. The pair of handle vertical bar portions 11h2, 11h2 of the handle 14e are fixed by the handle height fixing screw portions 11j, 11j in a state where the lower ends thereof are projected downward from the front and rear wheels 11f, 11f of the trolley body 11, respectively, and the trolley body is fixed. The wheels 11f and 11f are configured to be able to float from the ground, the floor surface, etc. by the hand-push handles 11h and 11h provided on the front and rear of the 11.

Therefore, according to the rail grinding device 1 of the embodiment according to the present invention, the wheels 11f and 11f having the small diameter outer rings 11f2, 11f2 and the large diameter outer rings 11f3, 11f3 having different diameters do not touch the floor surface such as the ground or the warehouse. Since it can be stored in a floating state (without contact), the rail rectifying device 1 can be placed independently without leaning against a wall or the like in a warehouse or the like. As a result, when the rail rectifying device 1 is stored, it is space-efficient and can be stored in a stable state, and when the rail is rectified, it stands upright without being tilted when temporarily placed near the rail. Since it can be temporarily placed in a state where it is left in place, work efficiency can be improved and correction work can be performed more safely.

Further, in the rail grinder 1 of the embodiment according to the present invention, the bogie main body 11 is provided with a rail grinder 11k for the operator to observe the rail grinder by the rail grinder 12. There is.

Therefore, the worker can rectify the head of the rail while looking at the rectification state observation mirror 11k, and the rectification work of the rail can be performed reliably and efficiently also in this respect.

In particular, since the rail grinder 11k is provided on the large diameter outer rings 11f3, 11f3 side of the left and right sides of the rail grinder frame 11a, the side surface of the rail head is ground by the grinding belt 12c of the rail grinder 12. When the rail rectifying device 1 is tilted so that the large-diameter outer rings 11f3, 11f3 sides of the wheels 11f, 11f come into contact with the top surface (tread surface) of the rail head to rectify the corners and side surfaces of the rail head. In this respect, the rail rectification state observation mirror 11k rises, and the rectification state observation mirror 11k does not interfere with the work due to contact with the roadbed, mackerel, etc. Therefore, the rail rectification work is performed reliably and efficiently in this respect as well. be able to.

1 Rail grinder 11 Car body 11a Wheel support projecting plate 14b, 14b Sleeve fixing nut 14a, 14a Plunger lifting sleeve 11e, 11e Wheel support 11f Wheel 11f1 Inner ring 11f2 Small diameter outer ring 11f3 Large Outer ring 14c Wheel elevating rotary handle 14e, 14e Hand push handle 14e1, 14e1 Handle grip part 14e2, 14e2 Handle vertical bar part 11i, 11i Handle vertical bar through sleeve part 11j, 11j Handle height fixing screw part 11k Corrected state observation mirror 12 Rail grinder 12a Drive source 12b, 12b Roller for grinding belt 12c Grinding belt 13 Pushing plate elevating mechanism 13a Pushing plate elevating mechanism body 13a1, 13a1 LM rail 13a2 Pushing plate elevating screw rod 13a3 Large diameter gear 13a4 Rotating shaft for raising and lowering the push plate 13a5 Small diameter gear 13a6 Rotating handle for raising and lowering the push plate 13b Push plate support lift 13b1 Push plate 14 Wheel lateral slide mechanism 14a Plunger lift sleeve 14a1 Plunger pin lift tilt surface 14b Sleeve fixing nut 14c Plunger pin 14d Plunger pin Rotating lever 14e Lateral positioning plate 14e1, 14e2, 14e3 Positioning hole 14f LM rail 14g LM block

Claims (5)

A dolly body equipped with a hand-push handle for workers to grab, push and pull by hand,
A rail grinder that is provided between the front and rear wheels of the bogie body and rotates a grinding belt that is passed between the front and rear rollers by a drive source such as an engine or a motor.
A pressing plate elevating mechanism provided on the bogie body and located inside the grinding belt passed between the front and rear rollers to lower the pressing plate to press the grinding belt against the rail surface and correct the rail surface. With a part,
At the front and rear of the bogie body, there are wheel lateral slide mechanism portions that slide the wheel support portions that rotatably support the wheels in the lateral directions intersecting the longitudinal direction of the rail and fix them at a plurality of predetermined positions. A rail rectifying device characterized by being provided. In the rail rectifying device according to claim 1,
The pressing plate elevating mechanism portion is
The main body of the push plate elevating mechanism fixed to the main body of the bogie,
The pressing plate elevating mechanism unit is provided so as to be slidable in the vertical direction, and the pressing plate is provided at the lower end portion. When,
A rotary handle for raising and lowering the pressing plate, which is provided on the main body of the pressing plate elevating mechanism and is provided by a worker to rotate the screw rod for raising and lowering the pressing plate to raise and lower the elevating body for the pressing plate. A rail rectifying device characterized by having. In the rail rectifying device according to claim 2,
The rotary handle for raising and lowering the pressing plate is provided at the upper end of the rotating shaft for raising and lowering the pressing plate, and a small-diameter gear having a small number of teeth is provided at the lower end of the rotating shaft for raising and lowering the pressing plate. on the other hand,
A rail grinding device characterized in that a large-diameter gear having a large number of teeth meshing with the small-diameter gear is provided at the upper end of the screw rod for raising and lowering the pressing plate. In the rail rectifying device according to any one of claims 1 to 3.
The front and rear wheels of the bogie body are left-right asymmetric wheels, and the inner ring has a width almost the same as the width of the head of the rail, and the left and right sides of the inner ring have smaller diameters larger than the inner ring. It has an outer ring and a large diameter outer ring whose diameter is larger than that of the small diameter outer ring.
The hand-pushed handles are provided on the front and rear of the bogie body, respectively, and a pair of handle vertical bar portions extending downward from the left and right sides of the handle grip portion gripped by the worker and passing through the left and right sides of the bogie body. While it is formed in a U-shape or U-shape with
The front, rear, left and right sides of the trolley body are provided with a handle vertical bar through sleeve portion through which a pair of handle vertical bar portions of the hand push handle are passed in the vertical direction, and the handle vertical bar through sleeve portion is provided. A handle height fixing screw portion for fixing the handle vertical bar portion at an arbitrary height is provided.
The lower end of the pair of handle vertical rods of the push handle provided on the front and rear of the bogie body is fixed by the handle height fixing screw portion in a state of protruding downward from the front and rear wheels of the bogie body. A rail rectifying device characterized in that the wheels can be lifted from the ground by the push handles provided on the front and rear of the bogie body. In the rail rectifying device according to any one of claims 1 to 4.
The rail grinder main body is provided with a rail grinder for observing the rail grinder by the rail grinder for an operator to observe the rail grinder.

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