Two-head rail flow re-profiling device

Abstract

To improve working efficiency by simultaneously correcting flows generated on both sides of a rail head part.SOLUTION: A two-head rail flow re-profiling device comprises a single rail traveling vehicle 11 provided with a front wheel 11b1 and a rear wheel 11c1 traveling on one rail R, and a slide mechanism part 12 provided on the single rail traveling vehicle 11 and having a pair of sliders 12b, 12b advancing / retreating to / from the rail R on both sides of the rail R where the vehicle travels. Disk grinders 14, 14 rotating a rotary grinding wheel 14b by turning on a power supply switch 14a are attached to the pair of sliders 12b, 12b, respectively.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a twin-head rail flow refining device capable of simultaneously refining flow generated on both sides of a rail head. [Background technology]

[0002] It is a well-known fact that when a train repeatedly runs on a rail, the head of the rail wears and plastically flows due to the load of the train and the contact pressure with the wheels, causing rail flow to occur and gradually grow, and since rail flow affects the safety of train operation, it is necessary to periodically redress it. For example, a flow redressing car (see, for example, Non-Patent Document 1) has been proposed as a redressing device dedicated to redressing such rail flow, which is a type of rail flow that causes the upper surface of the rail head to protrude laterally. In this flow redressing car, a flow redressing attachment is attached to a bogie that runs on two rails, and the flow on the inside or outside of the rail is redressed. [Prior art documents] [Non-patent literature]

[0003] [Non-Patent Document 1] Toko Sangyo Co., Ltd. "Horizontal flow grinding car" (https: / / www.to-ko-sangyo.co.jp / publics / index / 53 / detail=1 / b_id=240 / r_id=8 / ) Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the above-mentioned flow grinding vehicle, when flow occurs on both the left and right sides of the rail, the mounting position of the flow grinding attachment on the cart must be changed to grind the rail flow on one side at a time, which causes a problem of poor work efficiency.

[0005] In particular, the wheels of large gantry cranes used in ports and other facilities have flanges on both sides, so flow often occurs on both the left and right sides of the rails on which the gantry cranes run. This means that the flow must be corrected on one side at a time using the flow grinding vehicle described above, which makes work less efficient.

[0006] The present invention has been made with a focus on these problems, and aims to provide a two-head rail flow refining device that can simultaneously refining the flow generated on both sides of the rail head, thereby improving work efficiency. [Means for solving the problem]

[0007] In order to solve the above problems, the two-head rail flow grinding device of the present invention is characterized in that it comprises a single-rail running vehicle that runs on a single rail, and a slide mechanism unit having a pair of sliders that move forward and backward on each of the left and right sides of the single-rail running vehicle, and each of the pair of sliders is provided with a disc grinder that rotates a rotating grinding wheel when a power switch is turned on. Moreover, the twin-head rail flow grinding machine according to the present invention is characterized in that the single-rail traveling vehicle or the slide mechanism unit is further provided with a handle unit that is grasped by an operator. In addition, the twin-head rail flow grinding machine according to the present invention is also characterized in that the handle portion is provided with a pair of switch operation levers for individually turning on / off the power switches of the respective disc grinders. Furthermore, in the dual-head rail flow grinding device of the present invention, the handle section has a pair of handle post sections extending in the vertical direction on both the left and right sides of the rail on which the single-rail running vehicle runs, so as to straddle the rail, and the single-rail running vehicle or the slide mechanism section is provided with a pair of handle post height change support parts that support the pair of handle post sections in a manner that allows the vertical height of the pair of handle post sections to be changed, and the pair of handle post sections are lowered by the pair of handle post height change support parts so that their lower ends can be placed on a floor surface, the ground, or the like, thereby allowing the pair of handle post sections to be used as a stand. Moreover, in the twin-head rail flow grinding machine according to the present invention, the slide mechanism is provided with a pressure adjustment spring that presses the pair of sliders toward the rail. In addition, the two-head rail flow grinding device of the present invention is further characterized in that each of the disc grinders has an eccentric rotating shaft, and is provided with a grinder power switch control unit having an eccentric cam switch that rotates around the eccentric rotating shaft to maintain the power switch of each disc grinder in the on state. In addition, in the twin-head rail flow grinding device of the present invention, the single-rail running vehicle is characterized by comprising a running vehicle frame extending in the longitudinal direction of the rail, a front wheel support section which rotatably supports the front wheels, a rear wheel support section which rotatably supports the rear wheels, a front wheel level adjuster section provided on the front wheel side of the running vehicle frame and supporting the front wheel support section so as to adjust the height, and a rear wheel level adjuster section provided on the rear side of the running vehicle frame and supporting the rear wheel support section so as to adjust the height. In addition, in the double-head rail flow grinding device of the present invention, the portion of the single-rail running vehicle where the slide mechanism is provided is provided with a grinding state confirmation window for confirming the grinding state of the rail flow by the disc grinder supported by the pair of grinder support plates on each of the pair of sliders of the slide mechanism, and a transparent dust cover is provided above the grinding state confirmation window for blocking the upward scattering of grinding powder generated when the rail flow is ground by the disc grinder. Effect of the Invention

[0008] The two-head rail flow grinding device of the present invention is equipped with a slide mechanism having a pair of sliders that move toward and away from the rail on both the left and right sides of a single-rail running vehicle that runs on a single rail, and each of the pair of sliders is provided with a disc grinder that rotates a rotating grindstone when the power switch is turned on, and the two disc grinders grind the flow that occurs on both the left and right sides of the rail. As a result, the entire device can be made smaller, and the flow that occurs on both the left and right sides of the rail can be corrected simultaneously by the disc grinders on both the left and right sides, thereby improving work efficiency. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a side view of a twin-head rail flow refining device according to an embodiment of the present invention. [Diagram 2] FIG. 1 is an enlarged side view of a main part of a twin-head rail flow refining device according to an embodiment of the present invention. [Diagram 3] FIG. 1 is a front view of a twin-head rail flow refining device according to an embodiment of the present invention. [Figure 4] FIG. 1 is an enlarged front view of a main part of a twin-head rail flow refining device according to an embodiment of the present invention. [Diagram 5] FIG. 2 is an enlarged partial cross-sectional view of a slide mechanism that constitutes the twin-head rail flow grinding device according to the embodiment of the present invention. [Figure 6] FIG. 1 is a plan view of a twin-head rail flow refining device according to an embodiment of the present invention. [Figure 7] FIG. 1 is an enlarged plan view of a main portion of a twin-head rail flow refining device according to an embodiment of the present invention. [Figure 8] FIG. 2 is an enlarged front view of essential parts such as a grinder support plate and a grinder in the twin-head rail flow grinding device according to the embodiment of the present invention. [Figure 9] FIG. 2 is an enlarged front view of essential parts such as a grinder power supply switch control unit attached to a disc grinder in a two-head rail flow grinding device according to an embodiment of the present invention. [Figure 10] 10(a) and 10(b) are cross-sectional views taken along line AA in FIG. 9, and are end views showing the power switch (SW) turned off and on by an eccentric cam switch of a grinder power SW control unit attached to a disc grinder in a two-head rail flow grinding device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] A two-head rail flow grinding machine 1 according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings. Note that the embodiment described below is merely an example of the present invention, and the present invention is not limited to the following embodiment, and can be modified as appropriate within the scope of the technical concept of the present invention.

[0011] <Configuration of the twin-head rail flow grinding device 1 according to the embodiment> The two-head rail flow grinding device 1 of the embodiment is a rail flow grinding device that uses two commercially available handheld disc grinders 14, as shown in Figures 1 to 10, and is configured with a single rail running vehicle 11, a slide mechanism unit 12, a handle unit 13, disc grinders 14, 14, grinder power supply SW control units 15, 15, etc.

[0012] (Single rail vehicle 11) The single-rail running vehicle 11 is a bogie that has approximately the width of the head of the rail R and runs on a single rail R using front wheels 11b1 and rear wheels 11c1 provided respectively at the front and rear of a long running vehicle frame 11a extending in the longitudinal direction of the rail R. The single-rail running vehicle 11 is equipped with the running vehicle frame 11a, front wheel support parts 11b and rear wheel support parts 11c that rotatably support the front wheels 11b1 and rear wheels 11c1 provided respectively at the front and rear of the running vehicle frame 11a, front wheel height adjustment parts 11d and rear wheel height adjustment parts 11e that adjust the heights of the front wheel support part 11b and rear wheel support part 11c at the front and rear of the running vehicle frame 11a, etc.

[0013] The running vehicle frame 11a has a width slightly wider than the width of the head of the rail R, extends in the longitudinal direction of the rail R, and is a frame in which a slide mechanism part 12 is provided in the center of the longitudinal direction, and is formed in an approximately U-shape from a top plate part 11a1 and side plate parts 11a2, 11a2 extending downward from both the left and right sides of the top plate part 11a1.

[0014] A grinding status confirmation window 11a3 is provided in the longitudinal center of the top plate portion 11a1 for confirming the grinding status of the flow on both sides of the rail R by the disc grinders 14 attached to each of the pair of sliders 12b, 12b of the slide mechanism portion 12.

[0015] In addition, a bridge portion 11a4 is provided on the top plate portion 11a1 so as to cross the cutting status confirmation window portion 11a3 parallel to the rail R, and a transparent dust cover 11a5 is provided on the upper portion of the bridge portion 11a4 to check the cutting status of the flow on both sides of the rail R and to prevent dust and the like from scattering upward during cutting.

[0016] In addition, through holes are provided at the front and rear of the top plate portion 11a1 in the longitudinal direction, and nut portions 11d1, 11e1 having female threads are fixed to the front and rear through holes, and a front wheel level adjuster portion 11d adjusts the height of the front wheel 11b1 by abutting the lower end of a height adjustment bolt 11d2, which threads into the front nut portion 11d1 and moves up and down, against the front wheel support portion 11b, and a rear wheel level adjuster portion 11e adjusts the height of the rear wheel 11c1 by abutting the lower end of a height adjustment bolt 11e2, which threads into the rear nut portion 11e1 and moves up and down, against the rear wheel support portion 11c.

[0017] At the front and rear of the side plate portions 11a2, 11a2, pivot shaft portions 11a21, 11a21 are provided, respectively, which rotatably support one ends of the front wheel support portion 11b and the rear wheel support portion 11c, and are configured so that the heights of the front wheel 11b1 and the rear wheel 11c1 can be adjusted by the front wheel level adjuster portion 11d and the rear wheel level adjuster portion 11e.

[0018] (Slide mechanism 12) The slide mechanism main body 12a is provided above the single-rail running vehicle 11 and is a mechanism for moving sliders 12b, 12b, which have disc grinders 14 attached to them on both sides of the running rail R, back and forth (slide) toward the rail R. The slide mechanism main body 12a extends perpendicular to the single-rail running vehicle 11, i.e., in a direction perpendicular to the rail R, and sliders 12b, 12b are provided on both the left and right sides of the slide mechanism main body 12a so as to sandwich the rail R and are slidable in a direction perpendicular to the single-rail running vehicle 11, and a pair of grinder support plates 12b3, 12b3 are provided on each of the pair of sliders 12b, 12b and support the disc grinders 14, 14 that rotate the rotary grinding wheel when the power switch 14a is turned on.

[0019] The slide mechanism main body 12a is a base section which moves the sliders 12b, 12b to which the disc grinder 14 is attached, forward and backward relative to the rail R, as shown in Figures 3 and 4, and is provided with a rotating handle 12a11 as shown in Figure 5, etc., and is equipped with a slider feed ball screw 12a1 which is rotated by an operator to move the slider 12b forward and backward, a ball screw support section 12a2 which has a female threaded section which screws into the male threaded section of the slider feed ball screw 12a11, a pressure adjustment spring 12a3 which is provided at the tip of the slider feed ball screw 12a1 and supports the slider 12b so that the pressure can be adjusted, and a guide rod 12a4 which is provided at the tip of the pressure adjustment spring 12a3 and which guides the sliding of the slider feed ball screw 12a1 and the pressure adjustment spring 12a3.

[0020] As shown in Figures 4, 6, 7 and the like, a handle post height change support part 12a5 is provided on the handle section 13 side of the slide mechanism main body 12a, and the handle post height change support part 12a5 is equipped with a cylindrical handle post insertion tube part 12a51 into which handle post parts 13b, 13b of the handle section 13, which will be described later, are respectively inserted, and height adjustment screws 12a52, 12a52 which are provided on the handle post insertion tube parts 12a51, 12a51 and have their tip parts pressed against the outer peripheral surfaces of the handle post parts 13b, 13b to adjust and fix the height of the handle post parts 13b, 13b.

[0021] An opening 12a6 is provided in the center of the slide mechanism body 12a to expose the upper side of the grinding status confirmation window 11a3 of the single-rail traveling vehicle 11 and to allow a pair of disc grinders 14, 14 to pass through.

[0022] The slider 12b is a part that advances and retreats on the slide mechanism main body 12a in the direction of rail R by rotation of the slider feed ball screw 12a1, and is equipped with a spring connecting part 12b1 attached to the pressure adjustment spring 12a3 as shown in FIG. 5, a slider main body 12b2 that is fixed to the upper part of the spring connecting part 12b1 and slides on the upper surface of the slide mechanism main body 12a, and a grinder support plate 12b3 that is attached to the slider main body 12b2 and supports the disc grinder 14.

[0023] The grinder support plate 12b3 has a first bolt hole 12b31 through which a fastening bolt 11c4 (see FIG. 8) for mounting the disc grinder 14 is inserted, and a presser bolt 11c6 (see FIG. 8) having a rotating lever 11c61 for clamping the disc grinder 14 from both sides above the fastening bolt 11c4 (see FIG. 8) is inserted. A second bolt hole 12b32 is provided.

[0024] As shown in Figures 4, 8, etc., the disc grinder 14 is fixed to the grinder support plate 12b3 by the fastening bolt 11c4, nut 11c5 (see Figure 8), and pressure bolt 11c6 so that the rotating grindstone 14b is generally vertical. However, the second bolt hole 12b32 is formed in a horizontally long hole shape or a curved shape so that the angle of the rotating grindstone 14b can be fine-tuned by rotating it by a small angle around the fastening bolt 11c4 as the rotation axis.

[0025] (Handle part 13) The handle portion 13 is composed of a pair of gripping portions 13a, 13a that an operator grasps with the left and right hands, respectively, and a pair of handle post portions 13b, 13b that bend from the gripping portions 13a, 13a and extend downward from each of the left and right sides of the rail R so as to straddle the rail R.

[0026] The pair of gripping portions 13a, 13a are provided with a pair of switch operating levers 13c, 13c which turn on / off the power switches 14a of the left and right disc grinders 14 individually by pulling the core wire 15f passing through the wire cover 15g and rotating the eccentric cam switch 15e of the grinder power SW control unit 15 attached to each disc grinder 14 around the eccentric rotation shaft 15e1.

[0027] The handle post portions 13b, 13b bend from the grip portions 13a, 13a respectively and extend downward from both the left and right sides of the rail R so as to straddle the rail R, and are inserted into cylindrical handle post insertion tube portions 12a51, 12a51 provided in the slide mechanism main body 12a of the slide mechanism portion 12, and are configured so that the height can be adjusted and fixed by height adjustment screws 12a52, 12a52.

[0028] Therefore, by lowering each of the pair of handle post sections 13b, 13b using the pair of handle post height changing support sections 12a5, 12a5 and placing their lower ends on the floor or the ground, the pair of handle post sections can be used as stands 13b, 13b.

[0029] (Disc Grinder 14) The disc grinder 14 is a commercially available handheld type disc grinder that rotates a circular rotary grindstone 14b while a power switch (SW) 14a is pressed down, and in this embodiment, a removable battery 14d is attached to the rear part 14c3 of the grinder body 14c as shown in Fig. 8 and other figures and is used as a power source. The rotary grindstone 14b is provided with a grindstone cover 14e.

[0030] In such commercially available handy type disc grinders 14, a rod-shaped handle (not shown) is usually provided in the grinder body 14c by screwing it into a female threaded hole (not shown) provided on the outer surface of the head portion 14c1 in which a motor (not shown) for rotating the rotary grindstone 14b is built in, but in this embodiment, the rod-shaped handle is removed and the male threaded portion (not shown) at the tip of the fastening bolt 11c4 is screwed into the female threaded hole of the grinder body 14c in which the rod-shaped handle was provided, and the fastening bolt 11c4 is passed through the first bolt hole 12b31 (see Figure 8) of the grinder support plate 12b3 and fastened with the fastening nut 11c5 to attach it to the grinder support plate 12b3. However, since the disc grinder 14 would become unstable if it was only fixed by the fastening bolt 11c4 and the fastening nut 11c5, the disc grinder 14 is fixed to the grinder support plate 12b3 at two points, above and below, by clamping the disc grinder 14 with pressure bolts 11c6 (see Figure 8) on both sides that pass through the second bolt hole 12b32 (see Figure 8) above the fastening bolt 11c4.

[0031] Furthermore, in such commercially available handheld disc grinders 14, as shown in Figures 8 and 9, between the rear 14c3 of the grinder body 14c and the head portion 14c1, there is generally provided a grinder body gripping portion 13c2 which is thinner than the rear portion 14c3 and the head portion 14c1 and which is used to grip the grinder body 14c with a hand other than the hand which grips the rod-shaped handle (not shown) of the head portion 14c1, and a grinder power SW control portion 15 which turns the power switch 14a to the ON state is attached to the grinder body gripping portion 13c2.

[0032] (Grinder power switch control unit 15) The commercially available handheld type disc grinder 14 used in the embodiment of the two-head rail flow grinding device 1 is normally configured to rotate the rotating grindstone 14b only when the power switch 14a is pressed down and held in the on state.

[0033] Therefore, this disc grinder 14 is equipped with a grinder power SW control unit 15 that holds (maintains) the power switch 14a in the on state, which is attached to the thin grinder body gripping portion 13c2 between the rear portion 14c3 of the grinder body 14c and the head portion 14c1, as shown in Figures 1, 7, 8, etc.

[0034] As shown in Figures 7 to 9, the grinder power supply SW control unit 15 is formed into a U-shape in a plan view by connecting an angle bar 15a and a flat plate material 15b with hinge fittings 15c and screws 15d, and has an eccentric rotation shaft 15e1 that is eccentric between the tip of the flat plate material 15b and the hinge fitting 15c.The grinder power supply SW control unit 15 is provided with an eccentric cam switch 15e that rotates around the eccentric rotation shaft 15e1 to keep the power switch 14a of the disc grinder 14 in the on state, a core wire 15f connected to a core wire connecting portion 15e2 of the eccentric cam switch 15e, a wire cover 15g through which the core wire 15f passes, and a core wire passing portion 15h through which the end of the wire cover 15g is stopped and through which only the core wire 15f passes.

[0035] As a result, when the switch operating levers 13c, 13c provided on each of the pair of gripping portions 13a, 13a of the handle portion 13 are pulled, the core wire connection portions 15e2, 15e2 of each eccentric cam switch 15e, 15e are pulled via the wire covers 15g, 15g through the core wires 15f, 15f connected to each switch operating lever 13c, 13c, and the power switches 14a, 14a of each of the left and right disc grinders 14, 14 can be turned on.

[0036] On the other hand, when the operator releases either the left or right switch operation lever 13c, 13c, the restoring force (return force) of the power switch 14a of the disc grinder 14 itself rotates the eccentric cam switch 15e in the reverse direction, and the power switch 14a returns from the ON state to the OFF state.

[0037] In other words, the grinder power SW control units 15, 15 provided on each of the left and right disc grinders 14, 14 control the power switches 14a, 14a of the disc grinders 14, 14 provided on both the left and right sides to be individually turned on only while the operator is holding the left and right switch operating levers 13c, 13c.

[0038] <Operation of the twin-head rail flow grinding device 1 according to the embodiment> Next, the operation of the twin-head rail flow refining device 1 of the embodiment configured as above will be described using as an example a case where the flow on both the left and right sides of the rail R is refinished.

[0039] (Scraping work on both sides of the rail R) When an operator uses the dual-head rail flow grinding device 1 of the embodiment to grind the flow that has occurred on both the left and right sides of the rail R, the operator places the front wheels 11b1 and rear wheels 11c1 of the single-rail running vehicle 11 on the rail R where the flow is occurring, and the operator grasps the pair of gripping portions 13a, 13a of the handle portion 13 with the left and right hands, respectively, and pushes the dual-head rail flow grinding device 1 to move to the location where the flow is occurring.

[0040] Then, the worker determines through the opening 12a6 of the slide mechanism main body 12a, the grinding status confirmation window 11a3 of the single-rail running vehicle 11a, and the dust cover 11a5 whether the rotating grindstones 14b, 14b of the disc grinders 14, 14 supported by the grinder support plates 12b3, 12b3 of the left and right sliders 12b, 12b of the slide mechanism 12 are in contact with the flows on both sides of the rail R, and further whether the rotating grindstones 14b are pressing against the flows of the rail R with an optimal pressing force.

[0041] At that time, if it is determined that the rotating grindstone 14b of the disc grinder 14, 14 supported by the grinder support plate 12b3, 12b3 of the slide mechanism unit 12 is not in contact with the flow of the rail R, or that the contact of the rotating grindstone 14b, 14b with the flow of the rail R is weak, the worker rotates the rotating handle 12a11, 12a1 at the rear end of the slider feed ball screw 12a1, 12a1 of the slide mechanism unit main body 12a, 12a to bring the slider 12b, 12b closer to the rail R, and adjusts so that the rotating grindstone 14b, 14b of the disc grinder 14 contacts the flow of the rail R with an optimal pressing force.

[0042] Then, once the operator determines that the rotating grinding wheels 14b, 14b of the disc grinders 14, 14 supported by the grinder support plates 12b3, 12b3 of the left and right sliders 12b, 12b are in contact with the flows on both sides of the rail R with an optimal pressing force, he or she then pulls the switch operating levers 13c, 13c of the handle portions 13, 13 to turn on the power switches 14a, 14a of the left and right disc grinders 14, 14 via the grinder power SW control portions 15, 15.

[0043] Then, the rotary grindstones 14b, 14b of the left and right disc grinders 14, 14 rotate, so that the flow on both sides of the rail R can be corrected.

[0044] Here, the sliders 12b, 12b provided with the left and right disc grinders 14, 14 are attached to the slider feed ball screws 12a1, 13a1 via the pressure adjusting springs 12a3, 12a3, respectively, so that the pressure adjusting springs 12a3, 12a3 allow the rotating grindstones 14b, 14b of the left and right disc grinders 14, 14 to press against the flow of the rail R with an optimal pressing force, thereby enabling the flow on both sides of the rail R to be ground.

[0045] If necessary, the worker moves the twin-head rail flow refining device 1 back and forth by pushing and pulling the handle portions 13, 13 to refinish the flow on both sides of the rail R.

[0046] In addition, if there is a difference in the amount of overflow of the flow on both sides of the rail R or if the flow occurs only on one side of the rail R, the worker shortens the on state of one of the switch operating levers 13c, 13c of the left and right gripping portions 13a, 13a, or leaves it in the off state, and adjusts the on state of the left and right disc grinders 14, 14 according to the amount of flow on both sides of the rail R to correct the flow of the rail R.

[0047] (End of flow grinding) Then, when the refining work of the flow on both sides or one side of the rail R is completed, the twin-head rail flow refining device 1 of the embodiment is lowered from the rail R.

[0048] When the dual-head rail flow grinding device 1 is lowered from the rail R, the single rail running vehicle 11 of the dual-head rail flow grinding device 1 is likely to tip over to the left or right. In particular, when the dual-head rail flow grinding device 1 tips over to the left or right, since the slide mechanism 12 is long in the direction perpendicular to the longitudinal direction of the single rail running vehicle 11, either the left or right side of the slide mechanism 12 will come into contact with the roadbed or the ground, which is undesirable.

[0049] Therefore, in the two-head rail flow grinding device 1 of this embodiment, the worker loosens the height adjustment screws 12a52, 12a52 of the handle post height change support parts 12a5, 12a5 provided on the handle part 13 side of the slide mechanism main body 12a, and lowers the left and right handle post parts 13b, 13b further downward, thereby adjusting the height so that the lower ends of the handle post parts 13b, 13b touch the roadbed, ground, etc.

[0050] When the lower ends of the handle post portions 13b, 13b contact the roadbed or ground surface, etc., the three points, the front wheel 11b1 and the lower ends of the left and right handle post portions 13b, 13b, contact the floor surface or ground surface, etc., and become stable. Therefore, even if you release your hands from the handle portion 13, the dual-head rail flow grinding device 1 of the embodiment can be placed in a stable state without tipping over to the left or right.

[0051] <Summary of the twin-head rail flow grinding machine 1 according to the embodiment of the present invention> As described above, the two-head rail flow grinding device 1 of the embodiment of the present invention comprises a single-rail running vehicle 11 that runs on one rail R, and a slide mechanism unit 12 that is provided on the single-rail running vehicle 11 and has a pair of sliders 12b, 12b that move forward and backward relative to the rail R on both sides of the rail R, and the pair of sliders 12b, 12b are each provided with a disc grinder 14, 14 that rotates the rotating grindstone 14b when the power switch 14a is turned on.

[0052] Therefore, according to the two-head rail flow grinding device 1 of the embodiment of the present invention, the flow generated on both sides of one rail R can be simultaneously ground by the left and right disc grinders 14, 14, so that the work efficiency of the flow grinding work can be improved. In addition, since the flow of the rail R is ground using the commercially available handy type disc grinders 14, 14, the manufacturing cost of this device 1 can be reduced.

[0053] Furthermore, in the twin-head rail flow refining device 1 according to the embodiment of the present invention, the slide mechanism part 12 is provided with left and right handle parts 13, 13 that an operator can grasp.

[0054] Therefore, an operator can perform flow grinding work on the rail R while holding the handle portions 13, 13 and pushing and pulling the twin-head rail flow grinding device 1, thereby improving the work efficiency of the flow grinding work on the rail R.

[0055] In addition, in the twin-head rail flow grinding device 1 according to the embodiment of the present invention, the handle portions 13, 13 are provided with a pair of switch operation levers 13c, 13c for individually turning on / off the power switches 14a, 14a of the left and right disc grinders 14, 14.

[0056] Therefore, if there is a difference in the amount of overflow of the flow on both sides of the rail R or if the flow occurs only on one side of the rail R, the worker can pull one of the switch operating levers 13c, 13c of the left and right gripping portions 13a, 13a for a shorter period of time, or without pulling it, use the rotating grinding wheels 14b, 14b of the left and right disc grinders 14, 14 to grind down the flow of the rail R in accordance with the size of the flow on both sides of the rail R. Therefore, the flow that has occurred on both sides or one side of the rail R can be efficiently ground simultaneously, which also improves work efficiency.

[0057] In addition, in the dual-head rail flow grinding device 1 of the embodiment of the present invention, the handle portion 13, 13 is provided with a pair of gripping portions 13a, 13a that an operator grasps with the left and right hands, respectively, and a pair of handle post portions 13b, 13b that bend from the gripping portions 13a, 13a and extend downward from the left and right sides of the rail R so as to straddle the rail R, and the handle post portions 13b, 13b bend from the gripping portions 13a, 13a, respectively, and extend downward from the left and right sides of the rail R so as to straddle the rail R, and are inserted into cylindrical handle post insertion tube portions 12a51, 12a51 provided in the slide mechanism body 12a of the slide mechanism portion 12, and are configured to be adjusted in height and fixed by height adjustment screws 12a52, 12a52.

[0058] Therefore, the pair of handle post portions 13b, 13b can be used as a stand by lowering each of the pair of handle post portions 13b, 13b using the pair of handle post height changing support portions 12a5, 13a5 and placing their lower ends on the floor or the ground, etc., so that when this twin-head rail flow grinding device 1 is lowered from the rail R to interrupt or finish work, or when this twin-head rail flow grinding device 1 is stored or loaded onto the bed of a truck for transportation, etc., the twin-head rail flow grinding device 1 can be prevented from tipping over to the left or right, thereby improving usability.

[0059] In the twin-head rail flow grinding machine 1 according to the embodiment of the present invention, the pair of sliders 12b, 12b are provided with pressure adjustment springs 12a3, 12a3 that press the disc grinders 14, 14 against the side surface of the rail R with an optimal pressing force.

[0060] Therefore, the pressure adjusting springs 12a3, 12a3 constantly press the left and right disc grinders 14, 14 against the side surfaces of the rail R with an optimal pressing force, thereby enabling the flow generated on the rail R to be corrected reliably and quickly with the optimal pressing force.

[0061] In addition, in the two-head rail flow grinding device 1 of the embodiment of the present invention, each disc grinder 14 is further provided with an eccentric eccentric rotation shaft 15e1, and a grinder power SW control unit 15 having an eccentric cam switch 15e that rotates around the eccentric rotation shaft 15e1 to maintain the power switch 14a of the disc grinder 14 in the on state.

[0062] Therefore, in the rail grinding device 1 of this embodiment, it is possible to use a commercially available handheld type disc grinder 14 that rotates the rotating grinding wheel 14b only when the power switch 14a is pressed down, thereby reducing the manufacturing cost of the device 1.

[0063] In addition, in the dual-head rail flow grinding device 1 of the embodiment of the present invention, a front wheel level adjuster section 11d is provided on the front wheel 11b1 side of the running vehicle frame 11a of the single-rail running vehicle 11 to adjustably support the height of the front wheel support section 11b, and a rear wheel level adjuster section 11e is provided on the rear wheel 11c1 side of the running vehicle frame 11a to adjustably support the height of the rear wheel support section 11c.

[0064] Therefore, according to the two-head rail flow grinding device 1 of the embodiment of the present invention, the height of the front wheel 11b1 side and the rear wheel 11c1 side of the running vehicle frame 11a can be adjusted to adjust the front and rear height of the single rail running vehicle 11 relative to the rail R, so that the rotating grinding wheels 14b, 14b of the disc grinders 14, 14 can be reliably applied to the flow of the rail R, and in this respect too, the flow on both sides of the rail R can be efficiently and reliably ground.

[0065] In addition, in the dual-head rail flow grinding device 1 of the embodiment of the present invention, a grinding status confirmation window 11a3 is provided in the longitudinal center of the top plate portion 11a1 of the running vehicle frame 11a of the single-rail running vehicle 11, for confirming the grinding status of the flow on both sides of the rail R by the disc grinders 14, 14 attached to each of a pair of sliders 12b, 12b of the slide mechanism portion 12.

[0066] Therefore, the worker can check the grinding status of the flow on both sides of the rail R by the left and right disc grinders 14, 14 through the grinding status confirmation window portion 11a3, so that the flow on both sides of the rail R can be grinded efficiently and reliably at the same time.

[0067] In addition, in the dual-head rail flow grinding device 1 according to the embodiment of the present invention, a bridge portion 11a4 is provided on the top plate portion 11a1 of the running vehicle frame 11a of the single-rail running vehicle 11 so as to cross the grinding status confirmation window portion 11a3 parallel to the rail R, and a transparent dust cover 11a5 is provided on the upper portion of the bridge portion 11a4 to check the grinding status of the flow on both sides of the rail R and to prevent dust and the like from scattering upward during grinding.

[0068] Therefore, the worker can check the grinding status of the flow on both sides of the rail R by the left and right disc grinders 14, 14 through the grinding status confirmation window portion 11a3 and the dust cover 11a5, which also makes it possible to efficiently and reliably grind the flow on both sides of the rail R at the same time.

[0069] In the above embodiment, the commercially available disc grinders 14, 14 are attached to the two-head rail flow grinding device 1, but the present invention is not limited to this, and it is of course possible to provide a pair of dedicated disc grinders in the two-head rail flow grinding device 1 instead of the commercially available disc grinders 14, 14. In this case, the grinder power supply SW control unit 15 is not required.

[0070] In addition, in the description of the above embodiment, the handle post height change support parts 12a5, 12a5 which support a pair of handle post parts 13b, 13b which are also used as a stand so that they can be raised and lowered are provided on the slide mechanism main body 12a, but the present invention is not limited to this, and they may of course be provided on the running vehicle frame 11a of the single-rail running vehicle 11, etc., and in short, they may be provided so as to straddle the single-rail running vehicle 11.

[0071] In addition, in the description of the above embodiment, the two-head rail flow grinding device 1 is provided with handle portions 13, 13 that an operator can grasp, but the present invention is not limited to this. The handle portions 13, 13 may be omitted and the two-head rail flow grinding device 1 may be configured to run on the rail R by operation via wired or wireless communication, so that the flow on both sides of the rail R can be grinded simultaneously. [Explanation of symbols]

[0072] 1. Double-head rail flow grinding equipment 11 Single rail vehicle 11a Vehicle frame 11a1 Top plate 11a2 Side plate part 11a3 Grinding status confirmation window 11a4 Bridge section 11a5 Dust cover 11b Front wheel support part 11b1 front wheel 11c Rear wheel support part 11c1 rear wheel 11c4 Fastening bolt 11c5 Nut 11c6 Presser bolt 11c61 Rotating lever 11d Front wheel height adjustment 11d1 Nut part 11d2 Height adjustment bolt 11e Rear wheel height adjustment 11e1 Nut part 11e2 Height adjustment bolt 12 Slide mechanism 12a Slide mechanism body 12a1 Slider feed ball screw 12a11 Rotating handle 12a2 Ball screw support 12a3 Pressure adjusting spring 12a4 Guide rod 12a5 Handle post height change support 12a51 Handle boss insertion tube 12a52 Height adjustment screw 12a6 opening 12b Slider 12b1 Spring connection part 12b2 Slider body 12b3 Grinder support plate 13 Handle 13a Gripping part 13b Handle post section 13c Switch operation lever 14 Disc grinder 14a Power switch (SW) 14b Rotary grindstone 14c Grinder Body 14c1 Head section 14c2 Grinding part of grinder body 14c3 Rear 14d Battery 14e Grindstone cover 15 Grinder power switch control unit 15a angle material 15b flat plate material 15c Hinge fittings 15d Screw 15e Eccentric Cam Switch 15e1 Eccentric rotating shaft 15e2 core wire connection part 15f core wire 15g Wire Cover 15h core wire passage R rail

Claims

1. A single-rail vehicle that runs on a single rail; a slide mechanism having a pair of sliders that move forward and backward on each of the left and right sides of the single-rail traveling vehicle, A two-head rail flow grinding device, characterized in that each of the pair of sliders is provided with a disk grinder that rotates a rotating grindstone when a power switch is turned on.

2. The two-head rail flow grinding machine according to claim 1, A twin-head rail flow refining device, characterized in that the single-rail traveling vehicle or the slide mechanism unit is further provided with a handle unit that is grasped by an operator.

3. The two-head rail flow grinding machine according to claim 2, A twin-head rail flow grinding device, characterized in that the handle portion is provided with a pair of switch operation levers for individually turning on / off the power switches of the disc grinders.

4. The two-head rail flow grinding machine according to claim 2 or 3, The handle portion is The single rail traveling vehicle or the slide mechanism has a pair of handle post parts extending in the vertical direction on both the left and right sides of the rail on which the single rail traveling vehicle travels so as to straddle the rail, The single-rail traveling vehicle or the slide mechanism includes a pair of handle post height changing support parts that support the pair of handle post parts so as to be able to change the heights of the pair of handle post parts in the up-down direction, A two-head rail flow grinding device characterized in that the pair of handle post parts are lowered by the pair of handle post height changing support parts so that their lower ends can be placed on a floor surface, the ground, etc., thereby allowing the pair of handle post parts to be used as a stand.

5. The two-head rail flow grinding machine according to claim 1, The slide mechanism includes: A two-head rail flow grinding device characterized in that a pressure adjustment spring is provided to press the pair of sliders toward the rail.

6. The two-head rail flow grinding machine according to claim 1, Furthermore, the two-head rail flow grinding device is characterized in that each of the disc grinders has an eccentric rotating shaft, and is provided with a grinder power SW control unit having an eccentric cam switch that rotates around the eccentric rotating shaft to maintain the power switch of each disc grinder in the on state.

7. The two-head rail flow grinding machine according to claim 1, The single rail vehicle is A traveling vehicle frame extending in the longitudinal direction of the rail; A front wheel support portion that rotatably supports the front wheel; a rear wheel support portion that rotatably supports the rear wheel; a front wheel level adjuster portion provided on a front wheel side of the traveling vehicle frame and configured to adjustably support the height of the front wheel support portion; a rear wheel level adjuster section provided on the rear side of the traveling vehicle frame for supporting the rear wheel support section so as to adjust the height of the rear wheel support section.

8. The two-head rail flow grinding machine according to claim 1, A two-head rail flow grinding device characterized in that the portion of the single-rail running vehicle where the slide mechanism is provided is provided with a grinding state confirmation window portion for confirming the grinding state of the rail flow by the disc grinder supported on each of the pair of sliders of the slide mechanism via the pair of grinder support plates, and a transparent dust cover is provided above the grinding state confirmation window portion to block the upward scattering of grinding powder generated when the rail flow is ground by the disc grinder.

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