JP4916146B2 - Railway vehicle with derailment recovery device - Google Patents

Description

  The present invention relates to a railway vehicle with a derailment recovery device.

  Of rail vehicles, a grinding car that corrects worn rails, track maintenance that corrects the bending and gauge width of tracks, work vehicles that replace overhead lines and rails, etc., and measurements that check for wear and misalignment of overhead lines and rails. Work vehicles such as cars, work materials and transport vehicles that carry workers may derail during work. Therefore, a derailment recovery device is provided on the vehicle itself so that it can be quickly returned to the track without causing any trouble in the operation schedule of the passenger car / carriage.

An example thereof is described in Patent Document 1. That is, this Patent Document 1 relates to a track maintenance vehicle that corrects the height and bending of a track, and the derailment recovery device includes an elevating hydraulic cylinder and a lateral movement hydraulic cylinder, and driving and lateral movement of the elevating hydraulic cylinder. It is configured to return the derailed vehicle to the track in combination with the drive of the hydraulic cylinder.
Japanese Patent Publication No.7-115638

In Patent Document 1, lateral movement hydraulic cylinder, whose piston rod is disposed in a posture such that forward movement in have towards the outside of the track, in this configuration, the normal time when not using the derailment recovery device Since the piston rod of the lateral movement hydraulic cylinder remains exposed, there is a problem that the piston rod is easily rusted.

That is, when the derailment recovery device is not used, the lifting hydraulic cylinder is retracted so as to enter the inside of the track so as not to get in the way. Thus, the time for retracting the lifting hydraulic cylinder to the inside is much longer. long of a but, in the configuration in which the lateral movement hydraulic cylinder of the piston rod as in Patent Document 1 is advanced have towards the outside of the track, when retracting the lifting hydraulic cylinder toward the inside of the track for the lateral displacement hydraulic cylinder piston rod becomes exposed state and therefore, is rust piston rod that that a likely to occur.

Further, in order to allow the lifting hydraulic cylinder to move horizontally and to change the lifting hydraulic cylinder from the vertical posture to the horizontal posture, the hydraulic pressure is supplied to and discharged from the derailment recovery device by a flexible hose. in Patent Document 1, since the connecting port of the flexible hose in the derailment recovery device is facing the outside of the vehicle (the outside of the track), exhibit the tendency of the flexible hose protruding in it has towards the outside of the vehicle, Therefore, derailing recovery work There was also a problem that it was easy for objects to hit the joint and flexible hose at times.

  This invention makes it a subject to improve such a present condition.

Railway vehicle of the present invention, the lower surface point of the right and left side portions toward the advancing direction of the vehicle body, derailing recovery device and a lifting hydraulic cylinder and lateral movement hydraulic cylinder is disposed, hydraulic the lifting A base body provided at the upper end of the cylinder supports the vehicle body in a laterally movable manner, and the lateral movement hydraulic cylinder is moved forward on the base body toward the track in a plan view. is attached in position, it is attached to the vehicle body to the piston rod of the lateral movement hydraulic cylinder.

Further in the present invention, said vehicle body and the hydraulic unit is mounted for driving the respective hydraulic Cylinders, wherein the hydraulic and pipe relay portion provided in the vehicle body of the hydraulic circuit for driving the two hydraulic cylinders the portion between the cylinder are constituted by flexible hoses, further wherein the hydraulic cylinder of the flexible hose connection mouth is facing the side of the track.

According to the present invention, when the lifting hydraulic cylinder is retracted to the inner side of the track, the piston rod of the laterally moving hydraulic cylinder is fully retracted. For this reason, the piston rod of the hydraulic cylinder for lateral movement is not exposed at the normal time when the derailment recovery device is not used, so that there is no problem that rust is generated on the piston rod and durability can be improved.

Further, in the present invention, the connection port provided on the hydraulic cylinder side for connecting a flexible hose for facing the inner side of the track, never the connecting port or a flexible hose protruding toward the outside of the vehicle, the Therefore, it is possible to prevent or remarkably suppress a problem that an object is caught on the joint or the flexible hose during the derailment recovery work or the like.

  Next, an embodiment of the present invention will be described with reference to the drawings.

(1). Overview FIG. 1 is a diagram simply showing a group of work vehicles to which the present invention is applied, in which (A) is a schematic plan view and (B) is a side view. The work vehicle group includes three vehicles, a main work vehicle a, an auxiliary vehicle b, and a supply vehicle c. The main work vehicle a includes two front and rear carts 1 facing in the traveling direction, and the two carts 1 each include two axles 2 and four wheels 3.

In addition, the auxiliary vehicle b is provided with a two-shaft four-wheel carriage 1 similar to the main work vehicle a at a position located near the rear. The carriage 4 of the replenishing vehicle c is a one-shaft two-wheel system having only one axle 2. Adjacent vehicles a, b, c are connected by a connector 5. For this reason, the auxiliary vehicle b and the replenishing vehicle c can travel stably even if they have only one carriage 1, 4.

  Each vehicle a, b, c includes a derailment recovery device 6. The derailment recovery device 6 is disposed outside the carriages 1 and 4. Therefore, the main work vehicle a includes two pairs of front and rear, a total of four derailment recovery devices 6, and the auxiliary vehicle b and the replenishment vehicle c are a pair. Each derailment recovery device 6 is provided. In any case, the structures of the derailment recovery devices 6 are common. Here, the derailment recovery device 6 for the main work vehicle a will be described.

(2) Details of the derailment recovery device FIG. 2 is a schematic sectional view taken along the line II-II in FIG. 1B (details of the cart 1 are omitted). As shown in FIG. 2, the main work vehicle a includes a body frame 7 that constitutes a framework of the vehicle body, and a reinforcing member 8 is fixed to the lower surfaces of the left and right side portions of the body frame 7 in the traveling direction. The derailment recovery device 6 is provided on the reinforcing member 8. Next, the derailment recovery device 6 will be described with reference to FIG. 3A is a plan view of the derailment recovery device 6, FIG. 4B is a hydraulic circuit diagram, FIG. 4A is a view taken along the line IVA-IVA in FIG. 3A, and FIG. (A) IVB-IVB view, FIG. 5 is a VV sectional view of FIG. 3 (A).

Derailing the recovery device 6 is provided with a hydraulic cylinder 9 and for raising descending, and a horizontal movement hydraulic cylinder 10 for lateral movement in a direction intersecting the line R the main work vehicle a. The lifting hydraulic cylinder 9 is provided with a piston rod 11 having a substantially square cross section and descending downward, and a support plate 11 a is provided at the lower end of the piston rod 11.

As shown in FIG. 4, the upper end of the elevating hydraulic cylinder 9 is attached to a plate-shaped base body 13 through the reinforcing plate 12. The reinforcing plate 12 is attached to the base body 13 with two pins 14 extending in a direction orthogonal to the line R in plan view. In this case, one pin 14 located on the right side in FIG. 4A can be freely inserted and removed, and when this one pin 14 is removed, the lifting hydraulic cylinder 9 is vertically centered on the other pin 14. It can rotate freely from a posture to a horizontal posture extending in the same direction as the track R. Lifting hydraulic cylinder 9 is held in a horizontal attitude by a locking device (not shown).

The base body 13 and the vehicle body frame 7 are configured to move relative to each other in the horizontal direction orthogonal to the track R. However, as shown in FIG. The slider 15 and the rail 16 are slidably fitted together so that the slider 15 and the rail 16 cannot be removed. A pair of left and right sliders 15 are fixed to the base body 13, and the reinforcing member 8 of the body frame 7 is fixed. The left and right rails 16 are fixed via spacers 17.

As shown in FIGS. 3A and 5, in the space above the base body 13, the lateral movement hydraulic cylinder 10 is arranged in a posture with the piston rod 19 facing the track side. Left and right lateral pins 20 projecting in the same direction as the track R project from the end of the lateral movement hydraulic cylinder 10 located on the track side, and left and right bearing members 21 fixed to the base body 13 by the pins 20. It is inserted in. Further, the tip of the piston rod 19 of the lateral movement hydraulic cylinder 10 is fixed to a rod 23 attached to a bracket 22 fixed to the reinforcing member 8 of the vehicle body frame 7. Rod 23 is fitted to the bracket 22 in a rotatable state about its axis.

As shown in FIG. 4, pipes 24 and 25 for moving the piston rods 11 and 19 back and forth are connected to the elevating hydraulic cylinder 9 and the lateral movement hydraulic cylinder 10. The piping 24 of the lifting hydraulic cylinder 9 is connected to a first joint block 26 fixed to the lifting hydraulic cylinder 9, and the piping 25 of the lateral movement hydraulic cylinder 10 is connected to a second joint block 27 fixed to the base body 13. On the other hand, a relay block (which may be an electromagnetic solenoid) 28 as an example of a pipe relay portion is fixed to the vehicle body frame 7, and the joint 29 of the joint blocks 26 and 27 and the relay block 28 are connected to each other. The joint 30 is connected by a flexible hose 31.

In this case, as can be easily understood from FIG. 5, the joints 29 provided in the joint blocks 26 and 27 are open toward the inner side of the raceway (that is, the flexible hose connection port on the cylinder side is the inner side of the raceway). and are) whereas open to the side, fitting 30 of the relay block 28 is open toward the outside of the track. Therefore, the flexible hose 31 is always disposed between the joint blocks 26 and 27 and the relay block 28, so that no object is caught on the flexible hose 31.

A hydraulic circuit for driving the elevating hydraulic cylinder 9 and the lateral movement hydraulic cylinder 10 is easily viewed in FIG. 3 (B). In the present embodiment, the main work vehicle a is equipped with a first hydraulic unit 33 dedicated to the derailment recovery device and a second hydraulic unit 34 used for work, and both of the hydraulic units 33 and 34 are recovered from derailment. The device 6 can be used.

  The hydraulic units 33 and 34 include a tank 35 and a hydraulic pump 36. In the circuit, a main electromagnetic solenoid 37 for switching use of the first hydraulic unit 33 and the second hydraulic unit 34, and a lifting hydraulic cylinder 9 are provided. A first electromagnetic solenoid 38 that changes the flow of hydraulic pressure relative to the hydraulic cylinder 10, a second electromagnetic solenoid 40 that changes the flow of hydraulic pressure relative to the lateral movement hydraulic cylinder 10, a counterbalance valve 39 provided for each hydraulic cylinder 9, and each hydraulic cylinder 9. A flow control valve 41 provided for each is interposed.

  Although two main electromagnetic solenoids 37 are shown, only one main electromagnetic solenoid 37 can be used. Of course, when there is only one hydraulic unit, the main electromagnetic solenoid 37 does not exist. There are no particular limitations on the location of the electromagnetic solenoids 37, 38, 40. As described above, the relay block 28 is composed of the first electromagnetic solenoid 38, the second electromagnetic solenoid 40, the counter balance valve 39, and the flow rate adjustment valve 41. It is also possible to configure and connect the port of the flow control valve 41 and the joint blocks 26 and 27 with the flexible hose 31.

  The counter balance valve 39 is a valve that does not allow oil to flow unless pressure is applied to both the pipe that sends pressure oil and the pipe that sends return oil. The oil does not flow when the pipe is cut by a pipe or when any pipe is crushed due to an accident. In the figure, the counter balance valve 39 is arranged on the upstream side of the flow rate adjusting valve 41, but the arrangement can be reversed.

  As shown in FIGS. 4B and 5, the counter balance valve 39 is also provided in the joint blocks 26 and 27. For this reason, for example, even if the flexible hose 31 is torn or the pipe is broken, oil does not escape from the cylinders 9 and 10, and an accident in which the vehicle body tilts or falls can be prevented. When the counter balance valve 39 is provided in the vicinity of the cylinders 9 and 10 as described above, the counter balance valve 39 can be provided so as to be exposed, but the counter balance valve 39 itself is prevented from being damaged by an accident. It is preferable that they are built in the joint blocks 26 and 27 or covered with a sturdy cover.

(3). Restoration work and control When the main work vehicle a is derailed, first, the pair of lifting hydraulic cylinders 9 provided at the derailed part are brought close to the derailed side, and as shown by the one-dot chain line in FIG. toward receiving member 42 of the square member or the like on the ground (or on sleepers) lowers the piston rod 11 of the elevating hydraulic cylinder 9, lifted thus the main work vehicle a thereto. Next, the main work vehicle a is moved laterally by driving the pair of lateral movement hydraulic cylinders 10 synchronously, and then the main work vehicle a is lowered and the wheels 3 are placed on the track R.

  When the distance that the wheel 3 is separated from the track R is greater than the stroke of the lateral movement hydraulic cylinder 10, the raising and lowering and the lateral movement of the main work vehicle a may be performed several times.

  When the wheels 3 of the two carts 1 in the main work vehicle a are derailed, the same operation as described above is repeated at each of the carts 1. Further, when the auxiliary vehicle b or the replenishing vehicle c is derailed, since these vehicles have only one carriage 1, 4, the above-described operation may be performed at the location of the carriage 1, 4, respectively.

  Although details are omitted, the derailment recovery device 6 is a sensor (limit switch) that detects a state in which the piston rod 11 of the lifting hydraulic cylinder 9 is fully raised, and a state in which the lifting hydraulic cylinder 9 is fully retracted to the storage position. And a sensor for detecting the state in which the lifting hydraulic cylinder 9 is fully advanced from the retracted position, and the lifting hydraulic cylinder 9 is rotated in a horizontal position unless the piston rod 11 is fully lifted. I can't do it.

  The cylinders 9 and 10 can be operated by, for example, manually turning on / off a switch provided on the vehicle. In this embodiment, the portable operation panel 44 shown in FIG. It is used remotely. A power cord 45 is connected to the operation panel 44. The power cord 45 is provided with a plug 47 for connecting to a connector 46 provided on the vehicle. Since the connector 46 is provided in the vicinity of each derailment recovery device 6, a safe place can be selected and operated.

The operation panel 44 shown in FIG. 2 includes a power switch 48, a cylinder changeover switch 49 for selecting the lifting cylinder 9 and the lateral movement cylinder 10, an operation changeover switch 50 for switching between individual driving and synchronous driving, up and down directions, left and right directions. An operation lever 51 that can be rotated in the direction and a pilot lamp 52 are provided. A cylinder to be driven is selected after the power switch 48 is turned on, and then the operation lever 51 is rotated in the vertical direction or the horizontal direction. Thus, the vehicle can be moved up and down and moved laterally. When the operation lever 51 is rotated, the electromagnetic solenoids 38 and 40 are turned on and off to drive one of the cylinders 9 and 10.

For example, when the derailed vehicle is tilted or derailed on an inclined ground, the pair of lifting cylinders 9 are moved toward the derailing side, and then the pair of lifting cylinders 9 are individually lowered to receive the material. 42 , and then one of the lift cylinders 9 is individually driven so that the vehicle is horizontal, and then the pair of lift cylinders 9 are driven in synchronization to leave the vehicle in a horizontal state. Then, the vehicle is moved up and then moved laterally and returned to the upper side of the track, and then the vehicle is lowered by driving the pair of lift cylinders 9 synchronously.

  The operation of the electromagnetic solenoids 38 and 40 by the operation panel 44 may be performed via a signal line bundled together with the power cord 45, or may be performed by a wireless remote control method (from the viewpoint of cost and reliability, Wired system is preferred). In any case, in this embodiment, since the operation panel 44 can be operated at a place far away from the vehicles a, b, and c, there is an advantage that the recovery work can be performed safely. Moreover, if the power connector 46 is provided for each part of the derailment restoration device 6 of each vehicle a, b, c, there is an advantage that the work efficiency can be improved. In addition, since the raising / lowering hydraulic cylinder 9 and the lateral movement hydraulic cylinder 10 can only be selectively driven, an accident caused by driving them simultaneously can be prevented.

By the way, when the piston rod of the hydraulic cylinder is moved back and forth, the space capacity per unit length inside the cylinder differs depending on whether the piston rod is moving forward or backward due to the presence of the piston rod. If the amount of oil per unit time flowing inside the cylinder is the same in the state, the speed of the piston rod differs between forward and backward (the reverse speed becomes faster than the forward speed). On the other hand, when the vehicle is moved laterally, it is necessary to control the piston rods 19 of the pair of lateral movement hydraulic cylinders 10 to move at the same speed.

  In this embodiment, the pair of lateral movement hydraulic cylinders 10 are arranged symmetrically with respect to the track, so that when the vehicle is laterally moved, the piston rod 19 moves forward in one lateral movement hydraulic cylinder 10. In the other lateral movement hydraulic cylinder 10, the piston rod 19 moves backward. Therefore, the flow rate adjusting valve 41 is adjusted so that the speed of the piston rod 19 is the same at the time of forward and backward movement so that the piston rod 19 of the hydraulic cylinder 10 for both lateral movements moves back and forth at the same speed. Yes.

  When the work group is organized by a plurality of vehicles as in this embodiment, the hydraulic unit may be mounted for each vehicle, or the hydraulic units of other vehicles may be used. In the case of a vehicle that may be used independently, it is necessary to install a dedicated or work-use hydraulic unit. However, if multiple vehicles are always used as a set, the hydraulic unit is attached to only one of the vehicles. It can also be installed.

(4). Others The present invention can be embodied in various ways other than the above embodiment. For example, a hydraulic cylinder and lateral movement hydraulic cylinder for raising descending is also possible to provide a plurality of in one place.

It is a figure which shows the outline | summary of the vehicle group to which this invention is applied. It is the II-II sectional view taken on the line of FIG. (A) is a top view of a derailment restoration device, (B) is a hydraulic circuit diagram. FIG. 4 is an IVA-IVA view and an IVB-IVB view of FIG. FIG. 5 is a cross-sectional view taken along the line V-V in FIG.

a, b, c Work vehicle 1, 4 Bogie 3 Wheel 5 Coupler 6 Derailment recovery device 9 Elevating hydraulic cylinder 10 Lateral moving hydraulic cylinder 11 Piston rod of elevating hydraulic cylinder 13 Base body 19 Horizontal moving hydraulic cylinder Piston rod 26, 27 Joint block
24 and 25 of the relay block 29 cylinder side digits set on the vehicle body as an example of the pipe 28 pipe relay unit for driving the hydraulic cylinder couplings 31 flexible hose 44 operating panel

Claims (1)

A derailment recovery device having an elevating hydraulic cylinder and a laterally moving hydraulic cylinder is disposed at the lower surface portions of the left and right sides of the vehicle body in the traveling direction ,
The base body provided at the upper end of the lifting hydraulic cylinder supports the vehicle body in a laterally movable manner, and the laterally moving hydraulic cylinder is disposed on the base body with the piston rod facing the track in plan view. is mounted in the forward movement posture Te in the structure is attached to the vehicle body to the piston rod of the lateral movement hydraulic cylinder,
A hydraulic unit that drives the hydraulic cylinders is mounted on the vehicle body, and a portion between a pipe relay portion provided on the vehicle body and the hydraulic cylinders in a hydraulic circuit that drives the hydraulic cylinders. Is composed of a flexible hose, and the flexible hose connection port on both hydraulic cylinders faces the track side,
Railway vehicle with derailment recovery device.

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