JP6998060B2 - Push-type rail grinder - Google Patents

Description

The present invention relates to a hand-push type rail rectifying device that a worker pushes by hand to correct the rail surface while traveling on the rail and removes rust on the rail surface.

As a hand-pushed rail rectifying device that a worker pushes by hand and rectifies the rail surface while traveling on the rail, for example, it is wound around at least two rotating bodies (drive wheel and driven wheel) arranged at required intervals. A hand-push type rail grinder that rectifies the rail surface by pressing a part of the hung endless grinding belt against the rail surface by a grinding urging means has been proposed (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2003-53655

However, in the hand-push type rail rectifying device of Patent Document 1, the rail rectifying portion is moved to the trolley body by the elevating mechanism portion that operates the piston rod of the cylinder by the fluid pressure of a compressor using air, a hydraulic unit using hydraulic pressure, or the like. Since it is configured to move up and down, the weight of the entire device increases by the amount of the compressor, hydraulic unit, cylinder, etc., and there is a problem that manpower is required to transport the hand-push type rail rectifying device and install it on site.

In particular, on the Shinkansen, etc., the slopes for carrying in the line holding equipment are used for carrying in and out of the large line holding equipment, so a hand-push type rail grinder that is lightweight and compact enough to be carried from the stairs with a small number of people is desired. ing.

Therefore, the present invention has been made by paying attention to such a problem, and the rail grinding part is moved up and down without using a heavy lifting mechanism part using a compressor, a hydraulic unit, a piston, etc., and is lightweight as a whole. Moreover, it is an object of the present invention to provide a hand-push type rail rectifying device that can be miniaturized and can reduce manpower during transportation and on-site installation.

In order to solve the above-mentioned problems, the hand-pushed rail grinder according to the present invention is a hand-pushed rail grinder that a worker pushes by hand to correct the rail surface while traveling on the rail, or removes rust on the rail surface. The device is a trolley main body provided with wheels running on the rail and a handle gripped by a worker, and a first rotation extending in a direction perpendicular to the longitudinal direction of the rail with respect to the trolley main body. A rail grinder that is rotatably connected via a shaft and is passed between rollers by a drive source such as an engine or a motor to correct the rail surface, and a rail grinder via the first rotating shaft. The rail grinder is provided with an elevating mechanism for raising and lowering the handle side of the rail grinder with respect to the rail grinder body, and the rail grinder is provided with the grinding belt between the rollers. A belt pressing plate for pressing the grinding belt against the rail surface is provided, and the belt pressing plate swings in the longitudinal direction of the rail via a swing shaft extending in parallel with the first rotation shaft. It is characterized by being provided as possible.
Further, in the hand-push type rail rectifying device according to the present invention, the elevating mechanism portion includes an elevating rod having a male screw portion on the outer periphery and the rail rectifying portion located on the opposite side of the first rotation shaft. A female screw that is rotatably provided on the portion by a second rotation shaft rotatably supported at the rear end of the rail trimming portion frame of the rail trimming portion and to which the male screw portion of the elevating rod is screwed. It has a nut body provided with a portion, and an operator rotates the elevating rod and raises and lowers the nut body with respect to the elevating rod to raise and lower the rail cutting portion via the first rotating shaft. It is also characterized in that it rotates to raise and lower the nut body side of the rail cutting portion with respect to the trolley body.
Further, in the hand-pushed rail grinding device according to the present invention, the first rotating shaft is provided on the bogie main body independently of the rotating shaft of the wheels of the bogie main body.

In the hand-pushed rail grinder according to the present invention, the rail is rotatably provided in the vertical direction via a trolley main body and a first rotation shaft extending in a direction perpendicular to the longitudinal direction of the rail with respect to the trolley main body. The rail grinder that corrects the rail surface by rotating the grinding belt passed between the rollers by a drive source such as a motor or a motor, and the rail grinder in the vertical direction via the first rotation shaft with respect to the trolley body. The rail grinder is provided with a belt pressing plate that presses the grinding belt against the rail between the rollers, and is provided with a belt pressing plate. Is provided so as to be swingable in the longitudinal direction of the rail via a swing shaft extending in parallel with the first rotation shaft.
Therefore, according to the hand-push type rail rectifying device according to the present invention, the rail rectifying portion is first set with respect to the trolley body by the elevating mechanism portion without using a heavy elevating mechanism portion using a piston or the like. Since it can be rotated up and down via a moving shaft to move up and down, the entire device can be made lighter and smaller, and manpower for transportation and on-site installation can be reduced.
Further, in the hand-push type rail grinder according to the present invention, the belt pressing plate that presses the grinding belt against the rail swings via a swing shaft extending in parallel with the first rotation shaft, so that the rail surface Even if there is unevenness such as wavy wear, it can be reliably followed and corrected efficiently with a grinding belt, and even if the rail cutting part rotates via the first rotation shaft by the elevating mechanism, the belt can be moved up and down. The grinding belt can always be pressed parallel to the rail surface by the pressing plate swinging through the swinging shaft extending in parallel with the first rotating shaft.

It is a front view of the hand-push type rail grinder of the embodiment which concerns on this invention. It is a right side view of the hand-push type rail grinder of the embodiment which concerns on this invention. It is a top view of the hand-push type rail grinder of the embodiment which concerns on this invention. It is an enlarged front view which shows the structure (the rectification belt is omitted) of the grinding belt tension applying mechanism part, the belt pressing plate, etc. which constitute the rail rectifying part of the hand-push type rail rectifying apparatus of the present invention. .. It is an enlarged plan view which shows the structure (the shaving belt is omitted) of the grinding belt tension applying mechanism part, the belt pressing plate, etc. which constitute the rail shaving part of the hand-push type rail shaving device of embodiment which concerns on this invention. .. It is a left side view of the structure (the rectification belt is omitted) of the grinding belt tension applying mechanism portion, the belt pressing plate, etc. which constitute the rail rectification part of the hand-push type rail rectification device of the embodiment of this invention. In the left side view of a partial cross section of the configuration of the grinding belt tension applying mechanism portion, the belt pressing plate, etc. (the rectifying belt is omitted) constituting the rail rectifying portion of the hand-pushed rail rectifying device according to the present invention. be. It is a figure which shows the state in which the belt pressing plate constituting the hand-push type rail grinder of the embodiment which concerns on this invention is oscillated, respectively, (a) and (b).

Hereinafter, the hand-pushed 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 hand-push type rail rectifying device 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 the hand-push type rail grinder 1 of the embodiment>
The hand-pushed rail rectifying device 1 according to the embodiment of the present invention is a device that a worker pushes by hand to rectify the surface of the rail R while traveling on the rail R, and has a trolley main body 11 traveling on the rail R. It is provided with at least a rail grinding portion 12 provided on the trolley main body 11 so as to be able to move up and down, and an elevating mechanism portion 13 for raising and lowering the rail rectifying portion 12 with respect to the trolley main body 11.

(Bogie body 11)
The bogie body 11 is provided with front wheels 11b and rear wheels 11c on the front and rear sides of the rectangular bogie body frame 11a, respectively, and two rails R on the track on which the rail cutting portion 12 is mounted. Of these, it is configured to be able to run on one rail R.

A traveling handle 11d that a worker can grasp by hand is provided on the rear wheel 11c side, which is the upper rear end side of the bogie body frame 11a, while the front wheel 11b side, which is the tip end side, is on the bogie body frame 11a. In addition to providing a guard frame 11e erected in an inverted U shape, the tip of the rail trimming portion frame 12a, which will be described later, of the rail trimming portion 12 is located between the columns extending in the vertical direction of the guard frame 11e. The first rotating shaft support portions 11g and 11g are provided so as to be rotatably connected via the one rotating shaft 11f.

The lower end of the traveling handle 11d is fixed to the trolley body frame 11a, extends upward, bends at an angle of about 30 degrees with respect to the vertical direction on the way, and extends diagonally upward. , 11d1 and handlebars 11d2 extending in the left-right direction at the upper ends of the handle bodies 11d1 and 11d1 for the worker to grasp by hand. A brake lever 11d3 is provided on one of the handlebars 11d2.

Further, a guide for supporting the elevating mechanism portion 13 by inserting an elevating rod 13a, which will be described later, constituting the elevating mechanism portion 13 into a bent portion of the handle bodies 11d1 and 11d1 that bends at an angle of about 30 degrees with respect to the vertical direction. A pair of guide body support portions 11d4, 11d4 that rotatably support the body 13f from both the left and right sides are provided, and an elevating state described later that constitutes the elevating mechanism portion 13 below the guide body support portions 11d4, 11d4. A cylinder upper end support portion 11d5 that rotatably supports the upper end portion of the stable cylinder 13c is provided.

As described above, the guard frame 11e is erected in an inverted U shape on the bogie main body frame 11a and is manually provided, and on the bogie main body frame 11a between the columns, a rail to be described later of the rail grinding portion 12 is provided. The first rotating shaft support portions 11g and 11g are provided so that the tip portions of the grinding portion frame 12a are rotatably connected via the first rotating shaft 11f.

(Rail grinder 12)
The rail grinding portion 12 moves up and down with respect to the trolley main body 11 about the first rotating shaft 11f to rectify the surface of the rail R and remove rust on the surface of the trolley. A rail grinding part frame 12a rotatably connected to the first rotation shaft 11f of the main body 11 and equipped with a drive source 12b, a rotation transmission drive gear 12c fixed to the rotation shaft of the drive source 12b, and rotation. A grinding belt that is provided separately from the transmission drive gear 12c for a certain period of time and that rotates integrally with the rotation transmission driven gear 12d and the rotation transmission driven gear 12d in which the rotation of the drive source 12b is transmitted via the rotation transmission belt 12e. Drive roller 12f for grinding belt, driven roller 12g for grinding belt provided separately from the driving roller 12f for grinding belt for a certain period of time, and grinding belt 12h provided between the driving roller 12f for grinding belt and the driven roller 12g for grinding belt. The grinding belt tension applying mechanism portion 12i that applies tension to the grinding belt 12h and supports the belt pressing plate 12j swingably via the swing shaft 12i11, and the belt pressing that presses the grinding belt 12h against the rail R. A backing plate 12j, a rotation transmission belt tension applying portion 12k, etc. are provided, and the rotation of the drive source 12b is transmitted to the drive roller 12f for the grinding belt via the rotation transmission belt 12g or the like to rotate the grinding belt 12h. It is configured.

The rail grinding portion frame 12a is connected so that its tip portion rotates about the first rotating shaft 11f supported by the first rotating shaft supporting portions 11g and 11g of the bogie main body 11. The rear end portion is connected to the lower end portion of the elevating rod 13a, which will be described later, and the lower end portion of the elevating state stabilizing cylinder 13c constituting the elevating mechanism portion 13 via the second rotation shaft 13d.

Therefore, in the rail grinding portion frame 12a, the elevating rod 13a moves up and down with respect to the vehicle main body 11 by the rotation of the elevating rod 13a, that is, moves up and down, while the tip end side is the first rotating shaft support portion 11g of the trolley main body 11. Since the lower end of the elevating rod 13a rotates around the first rotation shaft 11f supported by 11g, the rear end side of the rail cutting portion frame 12a connected via the second rotation shaft 13d is the rail cutting. It rotates about the first rotation shaft 11f on the tip end side of the regular frame 12a.

The drive source 12b may be either an engine or a motor, but in the present embodiment, the engine is used.

The rotation transmission belt 12e is a ring-shaped infinite belt in which irregularities meshing with the rotation transmission drive gear 12c and the rotation transmission driven gear 12d are formed inside the rotation transmission belt 12e, and a predetermined tension is always provided by the rotation transmission belt tension applying portion 12k. Is configured to rotate without slipping.

The grinding belt 12h is a ring-shaped infinite belt provided with a grindstone surface for correcting the rail R and removing rust on the surface of the rail R on the outside thereof, and is a grinding belt tension applying mechanism portion 12i and a belt pressing plate. A predetermined tension is always applied by 12j or the like, and the drive roller 12f for the grinding belt and the driven roller 12g for the grinding belt rotate without slipping to correct the rail R or remove rust on the surface of the rail R. It is configured.

As described above, the grinding belt tension applying mechanism portion 12i applies tension to the grinding belt 12h and swingably supports the belt pressing plate 12j via the second rotating shaft 13d. FIGS. 4 to 4 to FIG. As shown in 7, the drive roller side granting mechanism frame 12i1 in which the driving roller 12f for the grinding belt is rotatably supported and the driven roller 12g for the grinding belt are rotatably supported and separated from the drive roller side granting mechanism frame 12i1. It is fixed to the driven roller side granting mechanism frame 12i2 and the driven roller side granting mechanism frame 12i2 side, and guides the advance / retreat (slide) between the driven roller side granting mechanism frame 12i1 and the driven roller side granting mechanism frame 12i2. It has two short slide rods 12i3 and one long slide rod 12i4, and three compression springs 12i5 provided on the outside of each of the short slide rod 12i3 and one long slide rod 12i4.

Further, the grinding belt tension applying mechanism portion 12i is fixed to the drive roller side applying mechanism frame 12i1 to support the belt pressing plate 12j, and two short slide rods 12i3 and one long slide rod 12i4 are inserted. The slide guide frame 12i6, which is integrated with the drive roller side grant mechanism frame 12i1 and moves forward and backward with respect to the driven roller side grant mechanism frame 12i2, and the rail cutting portion frame 12a can be rotated via the lever rotation shaft 12i7. The drive roller side grant mechanism frame tension lever 12i8 provided on the It is provided with a shaft portion 12i9 for advancing and retreating the drive roller side granting mechanism frame 12i1 to the driven roller side granting mechanism frame 12i2 by opening and closing the drive roller side granting mechanism frame tension lever 12i8.

Therefore, in the grinding belt tension applying mechanism unit 12i, the drive roller side applying mechanism frame is opened and closed by rotating the drive roller side applying mechanism frame tension lever 12i8 around the lever rotation shaft 12i7 in the α direction or the opposite direction. The advancing / retreating shaft portion 12i9 rotatably supported by the 12i1 slides so that the drive roller side grant mechanism frame 12i1 and the driven roller side grant mechanism frame 12i2 can be brought closer to each other or away from each other.

As a result, when the drive roller side grant mechanism frame 12i1 and the driven roller side grant mechanism frame 12i2 are brought close to each other by opening and closing the drive roller side grant mechanism frame tension lever 12i8, the grinding belt 12h can be attached or replaced, while the drive roller can be attached or replaced. Tension is applied to the grinding belt 12h by separating the side applying mechanism frame 12i1 and the driven roller side applying mechanism frame 12i2, and the grinding belt 12h is slipped between the driving roller 12f for the grinding belt and the driven roller 12g for the grinding belt. Can be rotated without.

The state shown in FIG. 5 is a state in which the drive roller side applying mechanism frame tension lever 12i8 is in a stable state by the toggle mechanism in a closed state, and the maximum compressive force acts on the three compression springs 12i5. ..

Further, the grinding belt tension applying mechanism portion 12i is provided at the lower end portions of the belt pressing plate support 12i10 whose upper portion is fixed to the slide guide frame 12i6 and extends downward, and the belt pressing plate support 12i10. It has a swing shaft 12i11 that swingably supports the center of 12j as a swing center.

The belt pressing plate 12j is provided so as to be swingable in the longitudinal direction of the rail R via the swing shaft 12i11 extending in parallel with the first rotation shaft 11f, the second rotation shaft 13d, and the like, and the operator can raise and lower the rail. When the rail R is ground by pressing the grinding belt 12h against the rail R by pushing down the rail grinding portion frame 12a by the portion 13, the rail R is swung in the β direction (see FIG. 4) around the swing shaft 12i11. It is configured to do.

(Elevating mechanism unit 13)
The elevating mechanism portion 13 rotates the rail cutting portion 12 in the vertical direction with respect to the trolley main body 11 via the first rotating shaft 11f to elevate and lower the rail cutting portion 12, and the upper end portion is gripped and rotated by an operator. Rotating handle 13a1 is provided, and a lifting rod 13a having a male screw portion provided on the outer peripheral surface below, and a rail cutting portion frame of a rail cutting portion 12 located on the opposite side of the first rotating shaft 11f. A nut body 13b rotatably provided on a second rotating shaft 13d rotatably supported at the rear end of 12a and provided with a female threaded portion into which a male threaded portion of the elevating rod 13a is screwed, and an upper end thereof. The elevating state stable cylinder 13c, in which the portion is rotatably supported by the cylinder upper end support portion 11d5, while the piston tip at the lower end is rotatably supported by the second rotation shaft 13d, and the rail cutting portion frame. A second rotating shaft 13d that is rotatably supported by the rear end of 12a and rotatably supports the lower end of the elevating rod 13a and the tip of the piston of the elevating state stabilizing cylinder 13c, and the elevating rod 13a are passed through to rotate for elevating. A compression spring 13e or the like provided between the handle 13a1 and the guide body support portions 11d4 and 11d4 is provided.

Therefore, in the elevating mechanism portion 13, when the elevating rod 13a is rotated by rotating the elevating rotary handle 13a1, the elevating rod 13a screwed with the nut body 13b moves up and down, so that the rear end of the rail grinding portion frame 12a The portion, that is, the operator side of the rail grinding portion frame 12a moves up and down with respect to the bogie main body 11 with the first rotation shaft 11f as the rotation center.

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

In the hand-pushed rail grinding device 1 of the embodiment, the rail grinding portion 12 is rotatably supported by the first rotating shaft support portions 11g and 11g on the tip end side of the bogie body 11 via the first rotating shaft 11f. Since they are rotatably connected, the elevating rotary handle 13a1 of the elevating mechanism unit 13 is rotated to lower the worker side of the elevating mechanism unit 13, and the driving roller 12f for the grinding belt and the driven roller 12g for the grinding belt are lowered. The grinding belt 12h bridged between the two is pressed against the rail R, and the rotating grinding belt 12h corrects wavy wear and the like of the rail R.

Here, a belt pressing plate 12j is provided between the grinding belt drive roller 12f and the grinding belt driven roller 12g as shown in FIG. 4, and the belt pressing plate 12j is for the grinding belt. Since the drive roller 12f and the driven roller for the grinding belt 12g project downward from the lowermost portion, the wavy wear of the rail R is corrected by the grinding belt 12h extruded by the belt pressing plate 12j.

At that time, since the rail grinding portion 12 is rotatably connected via the first rotating shaft 11f rotatably supported by the first rotating shaft supporting portions 11g and 11g on the tip end side of the bogie main body 11. If the belt pressing plate 12j is fixed in parallel with the bottom surface of the rail cutting portion 12 or expands and contracts in the parallel direction, the belt pressing plate 12j may be used depending on the angle of the rail cutting portion 12 with respect to the bogie body 11. The pressing surface 12j1 cannot push the grinding belt 12h in parallel with the tread surface of the rail R, and the tread surface of the rail R cannot be reliably corrected.

However, in the hand-push type rail rectifying device 1 of the embodiment, the belt pressing plate 12j is provided so as to be swingable in the longitudinal direction of the rail R via the swing shaft 12i11 extending in parallel with the first rotation shaft 11f. Therefore, as shown in FIGS. 8A and 8B, even when the rail R is tilted with respect to the rail R and the rail grinder frame 12a or the rail grinder frame 12a, the belt pressing plate is used. Since 12j swings via the swing shaft 12i11 and the grinding belt 12h can be pushed in a state where the pressing surface 12j1 of the belt pressing plate 12j is always parallel to the tread surface of the rail R, the tread surface of the rail R can be reliably and reliably pressed. It can be corrected efficiently.

<Main effects of the hand-push type rail grinder 1 of the embodiment>
Therefore, in the hand-push type rail grinding device 1 of the embodiment according to the present invention, the trolley main body 11 and the first rotating shaft 11f extending in the direction perpendicular to the longitudinal direction of the rail R with respect to the trolley main body 11 are moved up and down. The surface of the rail R is ground by rotating the grinding belt 12h, which is rotatably provided in the direction and passed between the driving roller 12f for the grinding belt and the driven roller 12g for the grinding belt by the drive source 12a of the engine or motor. A rail grinder 12 is provided, and an elevating mechanism 13 that rotates the rail grinder 12 in the vertical direction to move up and down with respect to the trolley main body 11 via the first rotation shaft 11f. A belt pressing plate 12j for pressing the grinding belt 12h against the rail R between the driving roller 12f for the grinding belt and the driven roller 12g for the grinding belt is provided in 12, and the belt pressing plate 12j is provided. , Is provided so as to be swingable in the longitudinal direction of the rail R via the swing shaft 12i11 extending in parallel with the first rotary shaft 11f, the second rotary shaft 13d, and the like.

Therefore, according to the hand-push type rail grinder 1 of the embodiment according to the present invention, the rail grinder 12 is moved by the elevating mechanism 13 even if the heavy elevating mechanism 13 using a piston or the like is not used. Since the rail can be moved up and down by rotating in the vertical direction with respect to the trolley main body 11 via the first rotating shaft 11f, the entire hand-pushed rail rectifying device 1 can be made lightweight and compact, and can be transported or installed at the site. It is possible to reduce the manpower at the time.

In particular, since the belt pressing plate 12j that presses the grinding belt against the rail R swings via the swing shaft 12i11 extending in parallel with the first rotation shaft 11f, the second rotation shaft 13d, and the like, the rail R Even if the surface has irregularities such as wavy wear, it can be reliably followed and ground efficiently with the grinding belt 12h, and the rail grounding portion 12 is rotated by the elevating mechanism portion 13 via the first rotation shaft 11f. Even if the rail is moved up and down, the belt pressing plate 12j swings via the swing shaft 12i11, so that the grinding belt 12h can always be pressed in parallel with the rail R surface for efficient correction.

Further, in the hand-push type rail rectifying device 1 of the embodiment according to the present invention, the elevating mechanism portion 13 is provided with an elevating rotary handle 13a1 at the upper end portion which is gripped and rotated by an operator, and a male screw portion is provided below. Is rotatably supported by the elevating rod 13a provided on the outer peripheral surface and the rear end portion of the rail trimming portion frame 12a of the rail trimming portion 12 located on the opposite side of the first rotating shaft 11f. It is equipped with a nut body 13b or the like that is rotatably provided on the rotating shaft 13d and is provided with a female threaded portion into which the male threaded portion of the elevating rod 13a is screwed. By raising and lowering the nut body 13b with respect to the rod 13a, the rail cutting portion 12 is rotated via the first rotating shaft 11f so that the operator side of the rail cutting portion 12 is raised and lowered with respect to the trolley body 11. It is composed.

Therefore, according to the hand-pushed rail rectifying device 1 of the embodiment according to the present invention, the structure of the elevating mechanism portion 13 is simplified, so that the entire hand-pushed rail rectifying device 1 can be made lighter and smaller. It is possible to reduce manpower during transportation and on-site installation.

Further, in the hand-pushed rail grinding device 1 of the embodiment according to the present invention, the first rotating shaft 11f is independent of the rotating shafts of the front wheels 11b and the rear wheels 11c, which are the wheels of the bogie body 11. The first rotating shaft support portions 11g and 11g provided in the above are rotatably provided.

Therefore, according to the hand-pushed rail rectifying device 1 of the embodiment according to the present invention, vibration or the like transmitted from the front wheels 11b and the rear wheels 11c when the trolley main body 11 is traveling causes the rotation shafts of the front wheels 11b and the rear wheels 11c and the like. Since it is not directly transmitted to the rail grinder frame 12a of the rail grinder 12 via the rail grinder, it is possible to reliably correct irregularities such as wavy wear of the rail R while running by pushing the hand-push type rail grinder 1 by hand. , The correction efficiency can be improved.

In the grinding belt tension applying mechanism portion 12i of the hand-push type rail rectifying device 1 of the above embodiment, the swing shaft 12i11 is attached to the lower end portion of the belt pressing plate support 12i10 whose upper portion is fixed to the slide guide frame 12i6 and extends downward. Although the belt pressing plate 12j is provided so as to be swingable via the above, the pressing of the belt pressing plate support 12i10 against the rail R is controlled by the rotation of the elevating rotary handle 13a1 of the elevating mechanism portion 13. A compression spring (compression spring) may be provided between the belt pressing plate support 12i10 and the belt pressing plate 12j so that the belt pressing plate support 12i10 is always pressed against the rail R. For example, if the belt pressing plate support 12i10 is passed through the compression spring (compression spring) and the compression spring (compression spring) is configured to always press the belt pressing plate support 12i10 against the rail R, the compression spring (compression spring) The compression force of the compression spring) causes the belt pressing plate 12j to always return to parallel, while the belt pressing plate 12j swings via the swing shaft 12i11 to grind at the pressing portion 12f1. The belt 12h can always be pressed parallel to the rail R, and the compressive force of the compression spring (compression spring) can reliably follow and correct the unevenness such as wavy wear of the rail R, further improving the correction efficiency. Can be made to.

Further, in the hand-pushed rail grinder 1 of the above embodiment, the nut body 13b provided with the female screw portion into which the male screw portion of the elevating rod 13a is screwed is provided on the trolley main body frame 11a of the trolley main body 11 and described. However, the present invention is not limited to this, and it is sufficient if the rail grinding portion 12 can be rotated via the first rotating shaft 11f to raise and lower the worker side of the rail trimming portion 12 with respect to the trolley main body 11. For example, a female screw portion may be provided on the guide body 13f rotatably supported by the guide body support portions 11d4 and 11d4 of the handle body 11d1, and the guide body 13f may be configured to have the function of a nut body. good.

Further, in the hand-pushed rail rectifying device 1 of the above embodiment, the description is made without providing the bogie main body 11 with an out trigger, but the present invention is not limited to this, and the rail R on which the bogie main body 11 runs on the bogie main body 11 is not limited to this. If an out-trigger that runs on the opposite rail R is provided detachably, and the out-trigger is attached, the rail R head on one side can be stably run on the two rails R and R so that the device 1 and the out-trigger do not tilt to the left or right. The portion can be corrected, and the tread surface of the rail R head can be easily corrected. On the other hand, if the outriggers are removed, the worker can freely change the angle of the rail grinding portion 12 mounted on the bogie body 11 in the left-right direction, so that the corners and sides of the rail R head can be easily trimmed. It will be possible to improve usability.

1 Hand-push type rail rectifying device 11 trolley body 11a trolley body frame 11b, 11c wheels 11d traveling handle 11d1, 11d1 guide body support part 11e guard frame 11f 1st rotation shaft 11g, 11g 1st rotation shaft support part 12 rail Grinding part 12a Rail machining part Frame 12b Drive source 12c Drive gear for rotation transmission 12d Driven gear for rotation transmission 12e Rotation transmission belt 12f Drive roller for grinding belt 12g Driven roller for grinding belt 12h Grinding belt 12i Grinding belt tension applying mechanism 12i1 Drive roller side grant mechanism frame 12i2 Driven roller side grant mechanism frame 12i3 Short slide rod 12i4 Long slide rod 12i5 Compression spring 12i6 Slide guide frame 12i7 Lever rotation shaft 12i8 Drive roller side grant mechanism frame Pull lever 12i9 Advance / retreat shaft part 12i10 Belt pressing plate support 12i11 Swing shaft 12j Belt pressing plate 12j1 Pressing surface 12k Rotation transmission belt tension applying part 13 Elevating mechanism part 13a Elevating rod 13a1 Elevating rotary handle 13b Nut body 13c Elevating state stable cylinder 13d 2nd Drive shaft 13e compression spring 13f guide body R rail

Claims (3)

It is a hand-push type rail rectifying device that a worker pushes by hand and rubs the rail surface while running on the rail, and removes rust on the rail surface.
The dolly body is equipped with wheels that run on the rails, and a handle that workers can grasp by hand.
The rail is rotatably connected to the bogie body via a first rotation shaft extending in a direction perpendicular to the longitudinal direction of the rail, and the grinding belt passed between the rollers by a drive source such as an engine or a motor is rotated to rotate the rail. The rail rectification part that rectifies the surface and the rail rectification part
It is provided with an elevating mechanism portion that rotates the rail grinding portion via the first rotating shaft to raise and lower the handle side of the rail trimming portion with respect to the bogie main body.
The rail grinding portion is provided with a belt pressing plate for pressing the grinding belt against the rail surface between the rollers, and the belt pressing plate is parallel to the first rotation axis. A hand-push type rail rectifying device characterized in that it is provided so as to be swingable in the longitudinal direction of the rail via a swing shaft extending to the rail. In the hand-pushed rail grinder according to claim 1,
The elevating mechanism unit
An elevating rod with a male screw part on the outer circumference,
Rotable by a second rotation shaft rotatably supported at the rear end of the rail grinding part frame of the rail grinding portion on the rail trimming portion located on the opposite side of the first rotating shaft. Has a nut body provided with a female threaded portion into which the male threaded portion of the elevating rod is screwed.
The operator rotates the elevating rod and raises and lowers the nut body with respect to the elevating rod to rotate the rail grinding portion via the first rotating shaft to grind the rail with respect to the bogie body. A hand-push type rail rectifying device characterized by raising and lowering the nut body side in the regular portion. In the hand-pushed rail grinder according to claim 1 or 2.
The first rotating shaft is a hand-pushed rail rectifying device characterized in that the first rotating shaft is provided on the bogie main body independently of the rotating shaft of the wheels of the bogie main body.

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