Left / right switching rail transport vehicle

Abstract

It also facilitates the movement of heavy objects such as rails and sleepers. [Solution] The left and right pair of foldable tower sections 12L and 12R are provided on the rail transport vehicle body 11 via a horizontal rotation axis so as to be able to stand up and fold down in the longitudinal direction of the track rail, and the upper foldable tower sections 12L2 and 12R2 are provided on the upper part of the lower foldable tower sections 12L1 and 12R1 via horizontal rotation mechanisms 12L3 and 12R3 so as to be able to rotate with the longitudinal direction of the lower foldable tower sections 12L1 and 12R1 as the axis of rotation. By rotating the upper foldable tower sections 12L2 and 12R2 relative to the lower foldable tower sections 12L1 and 12R1 via the horizontal rotation mechanisms 12L3 and 12R3 of the lower foldable tower sections 12L1 and 12R1, not only rails but also heavy objects such as sleepers can be moved.

Description

Technical Field

[0005]

[0001] The present invention relates to a left - right switching type rail carrier that performs loading and unloading of replacement rails and transports the replacement rails.

Background Art

[0002] As a left - right switching type rail carrier, for example, a pair of left - right collapsible tower parts are each erected by a lifting mechanism such as a hydraulic pressure during use, and during storage, they are each independently erected in a vertical state around a rotation shaft part and then laid down in a horizontal state. When erected in a vertical state, they support a beam provided with a hoist, and a left - right switching type rail replacement device that enables rail loading and rail removal operations from either the left or the right according to the situation during use has been proposed (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] <000​​​​​​​​​​​To solve the aforementioned problems, the left / right switchable rail transport vehicle according to the present invention comprises a rail transport vehicle body that runs on the track rails of a railway line and is equipped with a loading platform for carrying loads such as rails; a pair of left and right foldable tower sections provided on both the left and right sides of the rail transport vehicle body so as to be able to stand up and fold down in the longitudinal direction of the track rails; and a beam supported in a gantry-like state on both of the left and right foldable tower sections or in a cantilevered state on one of the left and right foldable tower sections, on which a hoist for loading and unloading loads is movably mounted. The pair of left and right foldable tower sections each comprises a foldable tower lower section provided so as to be able to stand up and fold down in the longitudinal direction of the track rails relative to the rail transport vehicle body, and a foldable tower upper section whose lower end is rotatably mounted on the upper part of the foldable tower lower section via a horizontal rotation mechanism, with the longitudinal direction of the foldable tower lower section as the axis of rotation relative to the rail transport vehicle body, while the upper end supports the beam. Furthermore, the switchable rail transport vehicle according to the present invention is also characterized in that the pair of left and right foldable tower sections and the beam are installed at least two locations with an interval between them in the longitudinal direction of the rail transport vehicle body. [Effects of the Invention]

[0007] In the left / right switching type rail transport vehicle according to the present invention, a pair of left and right foldable tower sections are provided with a horizontal rotation mechanism between the lower foldable tower section, which is provided to be able to stand up and fold down relative to the rail transport vehicle body, and the upper foldable tower section, which supports the beam on which the hoist slides. The upper foldable tower section is provided to be able to rotate horizontally relative to the rail transport vehicle body and the lower foldable tower section. Therefore, by supporting the beam while raising and lowering a pair of left and right foldable tower sections, a hoist can move replacement rails and the like from one side of the rail on the track to the other. In addition, by rotating the upper part of the foldable tower horizontally relative to the lower part of the foldable tower using a horizontal rotation mechanism in each of the left and right foldable tower sections, the movement of heavy objects such as rails and sleepers can also be easily performed. [Brief explanation of the drawing]

[0008] [Figure 1] This is a front view of a left / right switchable rail transport vehicle according to an embodiment of the present invention. [Figure 2] (a) and (b) are a plan view and a side view, respectively, of a left / right switching type rail transport vehicle according to an embodiment of the present invention. [Figure 3] This is a side view showing the left-right switching type rail transport vehicle according to an embodiment of the present invention, with the right-side foldable tower section folded down and the left-side foldable tower section raised. [Figure 4] This is a front view showing a left / right switching type rail transport vehicle according to an embodiment of the present invention, with the right-side foldable tower section lowered and the rail being lifted using the left-side foldable tower section. [Figure 5] This is a plan view showing a left / right switching type rail transport vehicle according to an embodiment of the present invention, with the right-side foldable tower section lowered and the rails being lifted using the left-side foldable tower section. [Figure 6] This is a side view showing a state in which a worker is moving the hoist to the left side of the foldable tower section in a left / right switching type rail transport vehicle according to an embodiment of the present invention. [Figure 7] This is a plan view showing a state in which a worker is moving the hoist to the left side of the foldable tower section in a left / right switching type rail transport vehicle according to an embodiment of the present invention. [Figure 8] This is a front view showing a left / right switching type rail transport vehicle according to an embodiment of the present invention, in which a worker has moved the hoist to the left side of the foldable tower section and is raising the beam using a hydraulic pump. [Figure 9] This is a side view showing a state in which a worker is raising the right-side foldable tower section of a left / right switchable rail transport vehicle according to an embodiment of the present invention. [Figure 10] This is a front view showing the state in which the right-side foldable tower section of the rail transport vehicle according to an embodiment of the present invention is raised, and the pump pressure of the hydraulic pump is released to lower the beam. [Figure 11]This is a plan view showing the state in which, in an embodiment of the present invention, a left / right switching type rail transport vehicle, after raising the right-side foldable tower section, the pump pressure of the hydraulic pump is released to lower the beam, and then pins, bolts, etc. are removed from the left-side foldable tower section and inserted into the right-side foldable tower section to connect to the beam. [Figure 12] This is a side view showing the left / right switching type rail transport vehicle according to an embodiment of the present invention, in which the right-side foldable tower section has been raised and connected to the beam, the handrail has been swapped with the right-side foldable tower section, and the left-side foldable tower section has been lowered. [Figure 13] This is a plan view showing the left / right switching type rail transport vehicle according to an embodiment of the present invention, in which the right-side foldable tower section has been raised and connected to the beam, the handrail has been swapped with the right-side foldable tower section, and the left-side foldable tower section has been lowered. [Figure 14] This is a front view showing the left-right switching type rail transport vehicle according to an embodiment of the present invention, in which the right-side foldable tower section has been raised and connected to the beam, the handrail has been moved to the right-side foldable tower section, and the beam has been lifted using a hydraulic pump to lower the left-side foldable tower section. [Figure 15] This is a side view showing a rail being lifted in a left / right switching type rail transport vehicle according to an embodiment of the present invention, with the beam supported by the right-side foldable tower section positioned horizontally. [Figure 16] This is a plan view showing a left / right switching type rail transport vehicle according to an embodiment of the present invention, with the beam supported by the right-side foldable tower section positioned horizontally and the rail being lifted by a hoist. [Figure 17] This is a front view showing a rail being moved in a left / right switching type rail transport vehicle according to an embodiment of the present invention, with the rail being lifted by a hoist on a horizontally positioned beam using the right-side foldable tower section. [Figure 18] This is a plan view showing the state in which heavy objects such as rails and sleepers are being rotated and moved by rotating the horizontal rotation mechanism of the right-side foldable tower section in a left / right switching type rail transport vehicle according to an embodiment of the present invention. [Modes for carrying out the invention]

[0009] Hereinafter, the left - right switching type rail vehicle 1 according to the embodiment of the present invention will be described in detail while referring to the attached 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 appropriately modified within the scope of the technical idea of the present invention.

[0010] <Configuration of the left - right switching type rail vehicle 1 of the embodiment> The left - right switching type rail vehicle 1 of the embodiment is pulled by a motor vehicle (not shown) or pushed from behind by a motor vehicle (not shown) and travels on the track rails R, R of the line. As shown in FIGS. 1 and 2(a), (b), it includes a rail vehicle body 11 that travels on the track rails R, R while carrying the replacement rail 3, and a pair of left and right collapsible tower parts 12L, 12R provided on both the left and right sides of the rail vehicle body 11 so as to be able to stand up and fall down in the longitudinal direction of the track rails R, R. A beam 13 is provided with a hoist 13b that is supported in a gantry state on both of the pair of left and right collapsible tower parts 12L, 12R or in a cantilever state on one of the pair of left and right collapsible tower parts 12L, 12R and is movable for loading and unloading the load.

[0011] Note that the replacement rail 3 is a name for distinguishing it from the track rail R on the line, and it refers to an old track rail removed from the line or a new track rail newly laid on the line. For example, it has a length of about 25000 mm (25 m).

[0012] (Rail vehicle body 11) The rail vehicle body 11 travels on the track rails R, R of the line while loading the replacement rail 3. As shown in FIGS. 2(a), (b), a plurality of wheels 11a that travel on the track rails R, R are provided on the lower surface side, and it is a transport vehicle provided with a locomotive connection part 11b etc. for connecting to a motor vehicle (not shown) etc. In order to transport the replacement rail 3, it has a length of about 15 m, for example.

[0013] (Collapsible tower parts 12L, 12R) The left and right foldable tower sections 12L and 12R are each composed of a lower foldable tower section 12L1 and 12R1, which are provided to be able to be raised and lowered relative to the rail transport vehicle body 11 as shown in Figure 1, etc.; a horizontal rotation mechanism section 12L3 and 12R3, which are provided on the upper part of the lower foldable tower sections 12L1 and 12R1 and are able to rotate horizontally via bearings, etc.; and an upper foldable tower section 12L2 and 12R2, which are erected on the upper part of the horizontal rotation mechanism sections 12L3 and 12R3 and have beam connecting sections 12L31 and 12R31 at their upper ends to which the beam 13 is detachably connected.

[0014] In this embodiment 1, the left / right switchable rail transport vehicle 1 is installed at least four times at predetermined intervals along the longitudinal direction of the rail transport vehicle body 11, as shown in Figures 2(a) and 2(b).

[0015] (Beam 13) As shown in Figures 1 and 2(a) and (b), the beam 13 is a long member installed across the running track rails R, R using an H-shaped steel or the like with flanges and a web, and is detachably attached to the upper ends of the left and right foldable tower sections 12L and 12R by connecting bolts 13a or the like.

[0016] A motorized hoist 13b for loading and unloading heavy objects such as replacement rails 3 and sleepers is installed on beam 13 so as to be movable in the longitudinal direction of beam 13, that is, in the direction crossing the running track rails R,R, and is configured to allow heavy objects such as replacement rails 3 and sleepers to be loaded and unloaded from the rail transport vehicle body 11 to the outside of the running track rails R,R at the site, or vice versa.

[0017] As shown in Figure 1, the hoist 13b is a well-known device used to lift heavy objects such as replacement rails 3 and sleepers on the rail transport vehicle body 11 and move along the beam 13 to load and unload the replacement rails 3. It is equipped with a hoist body 13b1, a hook 13b2, a remote control 13b3, etc. A rail clamping fitting 13b4 is attached to the tip of the hook 13b2 to grasp the replacement rails 3. The rail clamping fitting 13b4 is detachably attached to the hook 13b2, and when lifting heavy objects other than replacement rails 3, such as sleepers, a different fitting is attached.

[0018] (Beam tilting mechanism 14) In the case of a hydraulic beam tilting mechanism, the beam tilting mechanism 14 consists of a piston 14a whose tip is detachably connected to adapter rods 13c, 13c provided at both the left and right ends of the beam 13, a cylinder 14b whose lower end is rotatably connected to the sides of the upper parts 12L2, 12R2 of the foldable tower sections 12L, 12R, and which extends and retracts the piston 14a by hydraulic pressure, and a hydraulic pump 15 (see Figure 8, etc.) that supplies hydraulic pressure to the cylinder 14b. Of course, the beam tilting mechanism 14 may also be configured as a manual beam tilting mechanism using a turnbuckle or the like.

[0019] (Hydraulic pump 15) The hydraulic pump 15 is a device that allows a worker to operate a lever or the like to send hydraulic pressure to the beam tilting mechanism 14, which then drives the beam tilting mechanism 14 to raise and lower the beam 13.

[0020] <Operation of the left / right switchable rail transport vehicle 1 according to an embodiment of the present invention> Next, we will explain the operation of switching from the left-side foldable tower section 12L to the right-side foldable tower section 12R in the diagram, and the operation of rotating the right-side foldable tower section 12R to move heavy objects such as railway ties, in the left-side switchable rail transport vehicle 1 of the embodiment of the present invention configured as described above.

[0021] (Lifting of rail 3 using the foldable tower section 12L (Figures 3-5)) First, as shown in Figures 3 to 5, the foldable tower section 12L on the upper left of the diagram is used to lift the rail 3 from the ground and place it on the rail support platform 11b of the rail transport vehicle body 11. At this time, as shown in Figure 3, the worker extends the work step 12L4 provided at the base of the foldable tower section 12L on the upper left of the diagram horizontally, stands on the work step 12L4, and operates the foldable tower section 12L on the left. A handrail 16 is also attached to the work step 12L4 for operation.

[0022] In this case, the foldable tower section 12R on the upper right of the diagram is not used, and is therefore in a nearly horizontal position as shown in Figures 3 to 5.

[0023] (Stop supplying current from beam 13 to hoist 13b, etc. (Figures 6-8)) Next, the worker stands on the work step 12L4 and operates the remote control 13b3 to operate the left-side foldable tower section 12L, moving the hoist 13b towards the foldable tower section 12L as shown in Figure 8. Then the worker operates the hydraulic pump 15 to draw hydraulic pressure from the beam tilting mechanism 14 connected to the foldable tower section 12L, causing the piston 14a to retract relative to the cylinder section 14b, thereby raising the right side of the beam 13 in the diagram.

[0024] Next, the worker extends the work step 12R4 of the foldable tower section 12R on the upper right side of the diagram, and disconnects the upper and lower connectors 12L5 and 12L6 of the foldable tower section 12L on the upper left side of Figure 8, which supply current to the hoist 13b of the beam 13, as shown in Figure 8, thereby stopping the supply of current to the hoist 13b of the beam 13.

[0025] (Raise the foldable tower section 12R on the right side (Figures 9-11)) Next, the worker moves towards the fallen right-side foldable tower section 12R and, as shown in Figure 9, raises the right-side foldable tower section 12R that had been lying down. At the same time, as shown in Figure 10, the worker lowers the upper right end of the beam 13 that had been raised, and lowers the right end of the beam 13 onto the upper end of the now-erect right-side foldable tower section 12R.

[0026] Then, as shown in Figures 10 and 11, the worker removes the retaining pin from the connecting bolt 13a that was inserted and connected to the upper end of the foldable tower section 12R and the left end of the beam 13, removes the connecting bolt 13a, inserts the connecting bolt 13a into the right end of the beam 13 and the foldable tower section 12R on the upper right side of the figure, and then inserts the retaining pin into the connecting bolt 13a to fix the right end of the beam 13 to the upper end of the foldable tower section 12R on the upper right side of the figure.

[0027] Furthermore, as shown in Figure 10, the worker connects the connectors 12R5 and 12R6 of the foldable tower section 12R on the upper right side of the diagram, the connector 13e at the right end of the beam 13 which supplies current to the hoist 13b etc. of the beam 13, and the connector 11R1 of the rail transport vehicle body 11 to connect the power supply to the hoist 13b etc. of the beam 13.

[0028] (Fold down the foldable tower section 12L on the left side (Figures 12-14)) Next, since it is necessary to lower the left-side foldable tower section 12L, the worker removes the handrail 16 from the work step 12L4 of the left-side foldable tower section 12L, then stores the left-side work step 12L4, and after opening the work step 12R4 of the right-side foldable tower section 12R in the diagram, attaches the handrail 16 that was removed from the left-side foldable tower section 12L to the right-side work step 12R4.

[0029] Next, as shown in Figure 14, the worker moves the hoist 13b to the right end of the beam 13, swaps the hydraulic pump 15, operates the hydraulic pump 15 to raise the left end of the beam 13, and then lowers the left side of the foldable tower section 12L.

[0030] (Operate the foldable tower section 12R on the right to lift the rail 3 and lower it to the outside of the track (Figures 15-17)) After lowering the left-side foldable tower section 12L, the left end of the beam 13 is lowered to make it horizontal, and as shown in Figure 17, the foldable tower section 12R on the upper right side of the diagram is operated to lift the rail 3 of the loading platform etc. with the hoist 13b, and then the hoist 13b is moved to the left end of the beam 13 and the rail 3 is lowered outside the track rails R,R of the railway line.

[0031] (The foldable tower section 12R on the right is rotated to move the rails, sleepers, etc. (Figure 18)) Furthermore, in the left-right switchable rail transport vehicle 1 of this embodiment, the left and right foldable tower sections 12L and 12R are not only configured to be able to be raised and lowered, but the upper foldable tower sections 12L2 and 12R2 are also provided to be able to rotate horizontally relative to the lower foldable tower sections 12L1 and 12R1 via horizontal rotation mechanisms 12L3 and 12R3, respectively. For example, as shown in Figure 18, heavy objects such as rails 3 and sleepers can be lifted by the hoist 13b and moved to the outside of the track rails R, R or onto the loading platform 11b by rotating the upper foldable tower sections 12L2 and 12R2 horizontally relative to the lower foldable tower sections 12L1 and 12R1 via horizontal rotation mechanisms 12L3 and 12R3, respectively.

[0032] <Summary of the left / right switchable rail transport vehicle 1 according to the present invention> As described above, the left / right switchable rail transport vehicle 1 of the embodiment of the present invention comprises a pair of left and right foldable tower sections 12L, 12R, each comprising a foldable tower lower section 12L1, 12R1 that is mounted on the rail transport vehicle body 11 via a horizontal rotation axis so as to be able to stand up and fold down in the longitudinal direction of the track rail, and a foldable tower upper section 12L2, 12R2 mounted on the upper part of the foldable tower lower section 12L1, 12R1 via a horizontal rotation mechanism section 12L3, 12R3 so as to be able to rotate horizontally relative to the rail transport vehicle body 11 and the upright foldable tower lower section 12L1, 12R1, with the foldable tower upper section 12L2, 12R2 detachably supporting the beam 13.

[0033] Therefore, by alternately raising and lowering the left and right foldable tower sections 12L2 and 12R2 relative to the rail transport vehicle body 11, when one of the foldable tower sections 12L2 and 12R2 is raised, the hoist 13b supports the beam 13 and moves along the beam 13, allowing replacement rails and the like to be moved from one side of the rail on the track to the other. Furthermore, with the left and right foldable tower sections 12L2 and 12R2 raised and supporting the beam 13, the hoist 13b can lift heavy objects such as rails and sleepers, and the horizontal rotation mechanism sections 12L3 and 12R3 rotate the upper foldable tower sections 12L2 and 12R2 horizontally relative to the rail transport vehicle body 11 and the lower foldable tower sections 12L1 and 12R1, making it possible to easily move heavy objects such as rails and sleepers, thereby improving the work efficiency of track maintenance work. [Explanation of Symbols]

[0034] 1. Left / Right Switchable Rail Transport Vehicle 11 Rail transport vehicle body 11a wheels 11b Locomotive coupling section 12L,12R Foldable tower section 12L1, 12R1 Foldable Tower Lower Section 12L2,12R2 Upper side of collapsible tower 12L3, 12R3 Horizontal Rotation Mechanism 13 Beams 13a Connecting bolts 13b Hoist 13b1 Hoist body 13b2 Hook 13b3 Remote control 13b4 Rail clamping bracket 13c Adapter Rod 14. Beam tilting mechanism 14a Piston 14b Cylinder section 15 Hydraulic pump 3 Replacement rails R-type rail for track

Claims

1. A platform for loading cargo such as rails is provided, and the rail transport vehicle itself runs on the track rails of the railway, The rail transport vehicle body is provided with a pair of left and right foldable tower sections on each of its left and right sides, which are capable of being raised and lowered in the longitudinal direction of the track rails, The system includes beams that are supported either in a gantry-like manner on both of the left and right foldable tower sections, or in a cantilevered manner on one of the left and right foldable tower sections, and on which a hoist for loading and unloading cargo is movably mounted. The aforementioned pair of left and right foldable tower sections are, A left / right switchable rail transport vehicle characterized by comprising: a lower foldable tower portion provided on the rail transport vehicle body so as to be able to stand up and fold down in the longitudinal direction of the track rail; and an upper foldable tower portion whose lower end is provided on the upper part of the lower foldable tower portion via a horizontal rotation mechanism so as to be able to rotate with respect to the rail transport vehicle body with the longitudinal direction of the lower foldable tower portion as the axis of rotation, while the upper end supports the beam.

2. In the left / right switching type rail transport vehicle according to claim 1, A left / right switchable rail transport vehicle characterized in that the pair of left and right foldable tower sections and the beam are installed at least two locations spaced apart in the longitudinal direction of the rail transport vehicle body.

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