JP2016108808A - Tie shoulder cutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tie shoulder cutter that does not require an experienced skill for cutting a protruded part of a shoulder, and enables cutting work to be performed in a short period of time.SOLUTION: A tie shoulder cutter includes: a saw body 11 for cutting a protruded part 3a of a tie shoulder 3 with a belt-form band saw 11a between a pair of band saw support parts 12, 12, by rotating the band saw 11a; the pair of band saw support parts 12 fitted on the saw body by being separated by a width of the protruded part 3a of the tie shoulder 3, to pass the protruded part 3a of the tie shoulder 3 therebetween; a pair of tapered rollers 13 fitted respectively on an undersurface side of the pair of band saw support parts 12, the tapered rollers pushing down the band saw 11a between the pair of band saw support parts 12, 12 lower than other parts of the band saw, such that the protruded part 3a of the tie shoulder 3 comes in contact with the band saw 11a and the band saw 11a does not come in contact with a top surface of a sleeper 2 at parts other than the part in contact with the protruded part 3a of the tie shoulder 3.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a tie shoulder cutting machine for cutting a protruding portion of a tie shoulder protruding from a sleeper.

  In a seat type sleeper used on a TC type abbreviated track, a roadbed change exceeding the adjustment range may occur due to a large-scale earthquake or the like, and a height displacement exceeding the adjustment amount of the rail fastening device may occur. In such high and low displacement sections, there was a method of jacking up the section and pouring the cement filler into the gap generated by jacking up, but this is a skill level for repairing cement filler. There was a problem such as necessity.

  Therefore, remove the rails and clips from the shoulder of the old fastening device that has been sunk, cut the protruding part (shoulder body) from the sleeper on the shoulder, and install the seating surface type repair plate, which is a new fastening device with a thickness on the sleeper A method of installing and fastening a rail with the new fastening device has been proposed (for example, see Patent Document 1).

Japanese Patent No. 5410926

  However, conventionally, since a grinder using a grindstone was used for cutting the protruding portion of the shoulder, there was a problem that the cutting work required skill and time.

  Therefore, the present invention has been made paying attention to such problems, and a tie shoulder cutting machine that does not require skill in cutting the shoulder protruding portion and can perform the cutting operation in a short time. The purpose is to provide.

In order to solve the above-mentioned problems, a tie shoulder cutting machine according to the present invention is a tie shoulder cutting machine that cuts a protruding portion of a tie shoulder protruding from a sleeper, and a protruding portion of a tie shoulder by rotating a belt-shaped band saw. A saw body, a pair of band saw support portions that are provided so as to pass the protruding portion of the tie shoulder through the saw body, and the protruding portion of the tie shoulder therebetween, and the pair of band saw support portions A band between the pair of band saw support portions so that the band saw hits the protruding portion of the tie shoulder and the band saw does not hit the upper surface of the sleeper other than the protruding portion of the tie shoulder. It has a pair of roller which pushes down a saw more than other than between a pair of said band saw support parts.
Here, further provided on the lower surface side of the pair of band saw support portions, the lower surface of which contacts the upper surface of the sleeper to adjust the cutting height of the protruding portion of the tie shoulder from the upper surface of the sleeper, and the cutting It is preferable to provide a slide plate that assists in cutting the protruding portion of the tie shoulder at a height.
In addition, when the band saw abuts on the protruding portion of the tie shoulder and cuts the pair of band saw support portions, the back of the band saw hits and the band saw receives from the protruding portion of the tie shoulder. It is even better if there is a back plate that receives the reaction force.
Further, a tie shoulder projecting opening for projecting the projecting portion of the tie shoulder is formed, placed on the upper surface of the sleeper, and the cutting machine when the band saw abuts on the projecting portion of the tie shoulder and cuts. It is further preferable to have a cutting auxiliary plate that adjusts the cutting height and reduces friction when the cutting machine cuts the protruding portion of the tie shoulder.

According to the tie shoulder cutting machine of the present invention, a saw body that rotates the belt-shaped belt saw to cut the protruding portion of the tie shoulder, and a saw body that is spaced apart so as to pass the protruding portion of the tie shoulder, A pair of band saw supports that pass the protruding portion of the tie shoulder between them, and a lower surface side of the pair of band saw supporting portions, the band saw hits the protruding portion of the tie shoulder, and other than the protruding portion of the tie shoulder In order to prevent the band saw from hitting the upper surface of the sleeper, it has a pair of rollers that push down the band saw between the pair of belt saw support parts, and cuts the protruding part of the shoulder at a height close to the upper surface of the sleeper Even when doing so, it is possible to prevent the band saw from hitting the upper surface of the sleeper except during that time.
Therefore, skill is not required for the cutting operation of the protruding portion of the shoulder, and the cutting operation can be performed in a short time.

It is a top view which shows the external appearance of the tie shoulder cutting machine of embodiment which concerns on this invention. It is a right view which shows the external appearance of the tie shoulder cutting machine of embodiment which concerns on this invention. It is a bottom view which shows the external appearance of the tie shoulder cutting machine of embodiment which concerns on this invention. It is a front view which shows the state which removed the protective cover from the tie shoulder cutting machine of embodiment which concerns on this invention. It is an enlarged front view which expands and shows the periphery of the band saw support part in the tie shoulder cutting machine of embodiment which concerns on this invention. It is an enlarged front view which expands and shows the periphery of the band saw support part in the tie shoulder cutting machine of embodiment which concerns on this invention. It is the sectional view on the AA line in FIG. It is a bottom view which expands and shows the circumference | surroundings of the band saw support part in the tie shoulder cutting machine of embodiment which concerns on this invention. It is a right view which expands and shows the periphery of the band saw support part in the tie shoulder cutting machine of embodiment which concerns on this invention. It is a top view which shows the positional relationship at the time of cut | disconnecting the protrusion part of a tie shoulder using the tie shoulder cutting machine of embodiment which concerns on this invention. It is a front view which shows the positional relationship at the time of cut | disconnecting the protrusion part of a tie shoulder using the tie shoulder cutting machine of embodiment which concerns on this invention. It is a right view which shows the positional relationship at the time of cut | disconnecting the protrusion part of a tie shoulder using the tie shoulder cutting machine of embodiment which concerns on this invention. (A)-(d) It is a right view which shows the change of the state at the time of cut | disconnecting the protrusion part of a tie shoulder using the tie shoulder cutting machine of embodiment which concerns on this invention, respectively. It is an enlarged front view which expands and shows the periphery of the band saw support part at the time of cut | disconnecting the protrusion part of a tie shoulder using the tie shoulder cutting machine of embodiment. (A), (b) It is sectional drawing which shows the cross section of a tie shoulder, and the cut surface of the protrusion part of a tie shoulder after cut | disconnecting with the tie shoulder cutting machine of embodiment, respectively. It is a top view which shows the external appearance and usage method of a cutting assistance board.

  Next, a tie shoulder cutter according to an embodiment of the present invention will be described with reference to the drawings.

  The tie shoulder cutting machine 1 according to the embodiment has a certain thickness in the gap when a roadbed change exceeding the adjustment range occurs due to a large-scale earthquake or the like and a height displacement exceeding the adjustment amount of the rail fastening device occurs. Used to cut the protruding portion 3a of the tie shoulder 3 protruding from the sleeper 2 in order to insert the seating surface type repair plate. As shown in FIGS. 1 to 4, a saw body 11 and a pair of bands A saw support 12, a pair of tapered rollers 13, a pair of slide plates 14, and a pair of back plates 15 are provided.

  The saw body 11 is a well-known one that rotates the belt-shaped band saw 11a to cut the protruding portion 3a of the tie shoulder 3 between the pair of band saw support portions 12 and 12 by the band saw 11a, although not shown. , And a bevel gear that converts rotation of the rotation shaft of the motor into a rotation shaft in an oblique direction, and the saw blades 11b and 11b spaced apart by a certain distance are rotated by the bevel gear to rotate the band saw 11a. It is configured as follows. In addition, as shown in FIGS. 1-3, the protective covers 11c and 11c are attached on the saw wheels 11b and 11b, and in other drawings, the protective covers 11c and 11c are appropriately removed. Reference numeral 11d denotes a handle.

  As shown in FIG. 1, FIG. 3, FIG. 4, etc., the pair of band saw support portions 12, 12 are separated from the saw body 11 by approximately the width of the protruding portion 3 a of the tie shoulder 3, and the tie shoulder 3 protrudes therebetween. It is attached to the saw body 11 so as to pass the portion 3a.

  Each of the pair of band saw support portions 12 is further configured as shown in FIGS. 5 to 9, and when viewed from the front, the vertical surface portion bent into an L shape as shown in FIGS. 12a and a horizontal surface portion 12b.

  The vertical surface portion 12a is attached to the saw body 11 with screws 12a1 and the like.

  The horizontal surface portion 12b is attached with a taper roller 13, a slide plate 14, a pair of back plates 15 and the like.

  As shown in FIG. 7, each taper roller 13 is rotatably attached to the lower surface side of the horizontal surface portion 12 b of the pair of saw blade support portions 12 through bolts 17 a and nuts 17 b via a collar 18. 4-6, etc. so that the blade of the band saw 11a hits the portion 3a (see FIG. 11 and FIG. 12, etc.) and the band saw 11a does not hit the upper surface of the sleeper 2 except for the protruding portion 3a of the tie shoulder 3. As shown in FIG. 5, the band saw 11a between the pair of band saw support portions 12 and 12 is provided at such a height that it is pushed down more than other than between them.

  Each taper roller 13 is formed in a truncated cone shape having a larger diameter at the front and a smaller diameter at the rear, as shown in FIG.

  Each slide plate 14 is made of a plastic square or the like, and is attached by screws 16 or the like from the lower surface side of the horizontal plane portion 12b of the pair of band saw support portions 12 as shown in FIGS. .

  The function of the slide plate 14 is to determine the cutting height of the protruding portion 3a of the tie shoulder 3 from the upper surface of the sleeper 2 by abutting the lower surface thereof against the upper surface of the sleeper 2, and the tie by the saw body 11 at the cutting height. The cutting of the protruding portion 3a of the shoulder 3 is assisted. In addition, since the cutting height of the protruding portion 3a of the tie shoulder 3 from the upper surface of the sleeper 2 is required to be 3 mm or more as described later, the height of the slide plate 14 is set so as to be such a cutting height. decide.

  Each back plate 15 is composed of a stainless steel plate or the like that is resistant to friction with the band saw 11a, and is erected on the lower surface side of the horizontal plane part 12b of the pair of band saw support parts 12 as shown in FIG. When the band saw 11a abuts on the protruding portion 3a of the tie shoulder 3 and cuts, the back of the band saw 11a hits and the band saw 11a receives from the protruding portion 3a of the tie shoulder 3 when it is cut. Receive power.

  Next, the cutting | disconnection of the tie shoulder 3 by the tie shoulder cutting machine 1 comprised as mentioned above is demonstrated.

  For example, when a roadbed change exceeding the adjustment range occurs due to a large-scale earthquake, etc., and a height displacement exceeding the adjustment amount of the rail fastening device occurs, remove the rail and clip from the shoulder of the current rail fastening device, Insert a new seating surface type repair plate (seat surface type tie plate) to fill the high and low displacement.

  Therefore, this tie shoulder cutting machine 1 is used to cut the protruding portion 3 a from the sleeper 2 in the tie shoulder 3.

  Specifically, the operator first grasps the handle 11d of the tie shoulder cutting machine 1 and places the tie shoulder cutting machine 1 on the upper surface of the sleeper 2 as shown in FIGS. As shown in (a), the tie shoulder cutter 1 is moved in the direction of the arrow α, and the blade portion of the belt-shaped band saw 11a is pressed against the lower portion of the protruding portion 3a of the tie shoulder 3.

  Next, as shown in FIGS. 13 (b) and 13 (c), the operator further moves in the direction of the arrow α and moves the protruding portion 3a of the tie shoulder 3 from the sleeper 2 with the blade portion of the belt-shaped band saw 11a. The projecting portion 3a of the tie shoulder 3 projecting from the sleeper 2 is finally cut off as shown in FIG. 13 (d).

  At that time, as shown in FIG. 14 and the like, a pair of band saw support portions 12, 12 are spaced slightly wider than the width W of the protruding portion 3 a of the tie shoulder 3 at the lower end portion of the tie shoulder cutting machine 1. Is attached to the saw body 11 so that the protruding portion 3a of the tie shoulder 3 is passed between the band saw support portions 12 and 12.

  Therefore, as shown in FIG. 14, when the tie shoulder cutter 1 is moved in the direction of the arrow α to cut the protruding portion 3 a of the tie shoulder 3, the pair of band saw support portions 12, 12 are the protruding portions of the tie shoulder 3. 3a is sandwiched from both sides to guide the movement in the direction of the arrow α, so that it is not proficient in cutting the protruding portion 3a of the tie shoulder 3 as compared with the case of using a conventional disc-shaped grindstone. However, the cutting operation can be performed easily and in a short time.

  In particular, when the band saw 11a of the tie shoulder cutting machine 1 is rotating in the direction of the arrow β at the protruding portion 3a of the tie shoulder 3, the tie shoulder cutting machine 1 is used when cutting the protruding portion 3a of the tie shoulder 3. 3 receives a reaction force in the direction of arrow γ opposite to the direction of arrow β.

  However, in the tie shoulder cutting machine 1 of the present embodiment, since the right band saw support portion 12 in FIG. 14 abuts against the protruding portion 3a of the tie shoulder 3 and receives the reaction force, the protruding portion 3a of the tie shoulder 3 Compared to the case of using a conventional disk-shaped grindstone grinder that does not receive the reaction force at the time of cutting, the tie shoulder 3 can be easily and in a short period of time even if it is not skilled in cutting the protruding portion 3a. Cutting work can be performed.

  Further, as shown in FIG. 7 and the like, the blade of the band saw 11a advances in a substantially horizontal direction with respect to the protruding portion 3a of the tie shoulder 3 at the lower end portion on the lower surface side of the horizontal surface portion 12b of the pair of band saw support portions 12. Since the slide plate 14 made of plastic square material or the like is provided so that it can be cut by cutting, the lower surface of each slide plate 14 is brought into contact with the upper surface of the sleeper 2 and moved in the direction of the arrow α. However, the protruding portion 3a of the tie shoulder 3 can be smoothly cut in the horizontal direction almost certainly.

  Therefore, also in this respect, the cutting operation can be performed while maintaining a smooth cut surface in a simple and short time as compared with the case of using a conventional disc-shaped rotating grinder with no slide plate 14.

  Moreover, in the tie shoulder cutting machine 1 of this embodiment, the cutting height of the protrusion part 3a of the tie shoulder 3 from the upper surface of the sleeper 2 can be determined by adjusting the height of the slide plate 14 as appropriate. The protruding portion 3a of the tie shoulder 3 can be cut by the saw body 11 at the cutting height, and in this respect as well, compared to the case of using a conventional disc-shaped rotating grinder without a slide plate 14, Even without this, the cutting operation can be performed easily and in a short time.

  Fig.15 (a) has shown the cross section of the tie shoulder 3, FIG.15 (b) shows an example of the cut surface of the protrusion part 3a of the tie shoulder 3 cut | disconnected by the tie shoulder cutting machine 1 of this embodiment. ing.

  As shown in FIG. 15 (a), the height from the lower part of the protruding part 3a to 1 mm is within the range of the pedestal part 3b of the solid tie shoulder 3, and is cut at a height of 1 mm from the lower part of the protruding part 3a. Then, the solid pedestal portion 3b is cut, and it takes time to cut the solid pedestal portion 3b. Therefore, when cutting at a height of 3 mm or more from the lower portion of the protruding portion 3a, as shown in FIG. The cutting part is greatly reduced.

  Therefore, in this tie-shoulder cutting machine 1, the conventional disk without the slide plate 14 is adjusted by adjusting the cutting height to a height of 3 mm or more from the lower part of the protruding portion 3a by the height (thickness) of the slide plate 14. As compared with the case of using a grinder of a rotating grindstone, the cutting work can be performed while maintaining a smooth cut surface easily and in a short time.

  Moreover, in this tie-shoulder cutting machine 1, as shown in FIG. 5 and FIG. 6, etc., the band saw 11a between the pair of band saw support portions 12 and 12 is attached so as to be rotatable to a height that pushes down more than other than between them. As shown in FIG. 7 and the like, the pair of taper rollers 13 and 13 are formed in a truncated cone shape having a larger diameter at the front and a smaller diameter at the rear. Even when the three protruding portions 3a are cut, it is difficult to come forward.

  Therefore, also in this respect, the cutting operation can be performed while maintaining a smooth cut surface easily and in a short time.

  Moreover, in this tie-shoulder cutting machine 1, as shown in FIG.6, FIG.7 etc., it is provided so that it may stand in the lower surface side of the horizontal surface part 12b of a pair of band saw support parts 12, and may be extended in a perpendicular direction. A back plate 15 is provided that receives the reaction force received by the band saw 11a from the protruding portion 3a of the tie shoulder 3 when the back of the band saw 11a hits when the 11a contacts and cuts the protruding portion 3a of the tie shoulder 3. Yes.

  Therefore, compared with the case where a conventional disc-shaped grindstone grinder that does not have the backing plate 15 is used, the protruding portion 3a of the tie shoulder 3 can be cut easily and in this point as well.

  Moreover, when using this tie shoulder cutting machine 1, as shown in FIG. 16, the cutting auxiliary plate which consists of a stainless steel board material etc. in which the tie shoulder protrusion opening part 20a which makes the protrusion part 3a of the tie shoulder 3 protrude is formed. 20 is placed on the upper surface of sleeper 2, and the protruding portion 3 a of the tie shoulder 3 is cut by the band saw 11 a while the upper surface of the auxiliary cutting plate 20 abuts the lower surface of the slide plate 14 of the tie shoulder cutting machine 1. May be.

  As described above, when the cutting auxiliary plate 20 is placed on the upper surface of the sleeper 2 and then the protruding portion 3a of the tie shoulder 3 is cut by the tie shoulder cutting machine 1, the upper surface of the sleeper 2 is rough or the upper surface itself is uneven or damaged. Even if it exists, it can cut | disconnect more smoothly, making the slide plate 14 lower surface of the tie shoulder cutting machine 1 contact | abut.

  In particular, when the cutting height of the protruding portion 3a of the tie shoulder 3 cannot be sufficiently adjusted only by adjusting the height of the slide plate 14, for example, when the roadbed change exceeding the adjustment range occurs and the sinking amount of the sleeper 2 is large In addition, since the cutting height of the protruding portion 3a of the tie shoulder 3 can be adjusted by the thickness of the auxiliary cutting plate 20 together with the height of the slide plate 14, the tie shoulder 3 can be easily and quickly reduced in this respect. The protruding portion 3a can be cut.

1 Tie Shoulder Cutting Machine 11 Saw Body 11a Band Saw 12 Band Saw Support 13 Tapered Roller 14 Slide Plate 15 Backing Plate 20 Cutting Auxiliary Plate 20a Tie Shoulder Projection Opening 2 Sleeper 3 Tie Shoulder 3a Projection Part 4 Rail

Claims (4)

A tie shoulder cutting machine for cutting a protruding portion of a tie shoulder protruding from a sleeper,
A saw body that rotates the belt-shaped belt saw to cut the protruding part of the tie shoulder;
A pair of band saw support portions that are provided so as to pass the protruding portion of the tie shoulder through the saw body, and through which the protruding portion of the tie shoulder passes,
The pair of band saws are provided on the lower surface side of the pair of band saws, respectively, so that the band saw hits the protruding portion of the tie shoulder, and the band saw does not hit the sleeper upper surface except for the protruding portion of the tie shoulder. A pair of rollers that pushes down the band saw between the band saw support portions more than other than between the pair of band saw support portions;
A tie shoulder cutting machine characterized by comprising: In the tie shoulder cutting machine according to claim 1,
further,
Each of the pair of band saw support portions is provided on the lower surface side, and the lower surface is in contact with the upper surface of the sleeper to adjust the cutting height of the protruding portion of the tie shoulder from the upper surface of the sleeper, and the tie at the cutting height is adjusted. A tie shoulder cutting machine provided with a slide plate that assists in cutting the protruding portion of the shoulder. In the tie shoulder cutting machine according to claim 1 or 2,
In each of the pair of band saw support portions,
When the band saw comes into contact with the protruding portion of the tie shoulder and cuts, a back plate is provided that receives the reaction force received by the band saw from the protruding portion of the tie shoulder when the back of the band saw hits. A tie shoulder cutting machine. In the tie shoulder cutting machine according to any one of claims 1 to 3,
further,
A tie shoulder projecting opening for projecting the projecting portion of the tie shoulder is formed, placed on the upper surface of the sleeper, and the cutting height of the cutting machine when the band saw abuts on the projecting portion of the tie shoulder and cuts. A tie-shoulder cutting machine comprising a cutting auxiliary plate that adjusts and reduces friction when the cutting machine cuts a protruding portion of the tie shoulder.

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