JP4101690B2 - Bearing wheel bogie - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a track ring bogie that loads a track ring of a vehicle placed on a railroad track, travels on the track, and moves the vehicle, and more specifically, the track ring bogie. The present invention relates to an improvement of a track ring carriage for shortening the time required for moving work and improving the operability of the track ring carriage.
[0002]
[Prior art]
A maintenance vehicle traveling on a railroad track usually moves to a target maintenance / inspection point after the operation of a general vehicle is completed, and the work is completed and withdrawn before the next operation starts. Therefore, in the unlikely event that the above-mentioned work is being performed or moved to or removed from the maintenance / inspection point, the maintenance vehicle traveling device has failed and the maintenance vehicle has become unable to move on the track. In some cases, it is necessary to quickly remove the maintenance vehicle from the track so as not to hinder the operation of the general vehicle. Thus, for the purpose of removing the maintenance vehicle that has become immovable due to a failure of the traveling device, a track wheel bogie (hereinafter referred to as a bogie) that moves the vehicle has been conventionally devised (for example, (See Patent Document 1).
[0003]
[Patent Document 1]
JP 2000-388874 A (page 5-20, FIGS. 1 to 17)
[0004]
This type of dolly is usually stored at a depot, etc., and if necessary, it is mounted on a car etc. and transported to the site where the maintenance vehicle has failed. The vehicle's track ring is loaded to travel on the track, and the maintenance vehicle is moved.
[0005]
[Problems to be solved by the invention]
However, when the carriage is used on the site after the maintenance vehicle breaks down, it takes time until the carriage arrives at the site. As a result, the time required to move the maintenance vehicle by the carriage is reduced. There was a problem of becoming longer. If the truck is installed in the maintenance vehicle in advance, the above problem will be solved, but the truck is large and heavy, so it takes effort to load and unload the carriage on the maintenance vehicle, and the carriage becomes an obstacle. This could interfere with the normal functioning of the maintenance vehicle. On the other hand, the above-mentioned problem is slightly solved in the assembly-type cart, but since the cart structure is complicated and has a large number of parts at the time of disassembly, there is a new problem that it takes time to assemble and disassemble the cart. It was.
[0006]
In addition, some maintenance vehicles are referred to as “railway vehicles” in which a vehicle running on a general road is provided with an orbital ring that can be moved up and down, and can travel on the track by this orbital ring. Is relatively small and light, so that it does not require a cart with a large and complicated structure as in the prior art. Therefore, a simpler cart is desired.
[0007]
The present invention has been made in view of the above circumstances, and has as its first object to shorten the time required for the work of moving the maintenance vehicle by the carriage and to improve the operability of the carriage. A second object is to provide a cart suitable for use in a relatively small and lightweight maintenance vehicle such as a railcar.
[0008]
[Means for Solving the Problems]
The present invention relates to a track ring carriage that loads a track ring of a vehicle mounted on a pair of tracks extending in parallel, travels on the track, and moves the vehicle. In addition, a pair of main bodies installed so as to be able to travel with the individual bearing rings loaded thereon, and a connection pipe connecting the pair of main bodies, the main body and the connection pipe are both disassembled Thus, the vehicle can be stored at all times, and each of the main bodies is provided between a pair of wheels disposed along the extending direction of the track and traveling on the track. In addition, the wheel flange portion side end portion of the axle that supports the wheel is protruded from the end surface of the wall portion of the main body, and the connecting pipe is inserted into the protruding portion. Therefore, the connecting pipe and the main body are connected. It is characterized in that it is that structure.
[0011]
Moreover, it is desirable that each of the wheels has an insulating structure including a wheel body made of an insulating material and a metal outer ring portion covering a contact portion with the track.
[0012]
Further, the amount of protrusion from the upper surface of the track when placed on the track is smaller than the distance from the upper surface of the track to the lower end of the track ring when the vehicle is lifted by a jack provided in the vehicle. It is desirable.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Examples of the structure of the cart according to the present invention are shown in FIGS. Here, FIGS. 1 to 3 are a front view, a top view, and a side view of the entire carriage, and FIG. 4 is a front view showing the structure of the frame of the carriage. In the following description, unless otherwise specified, the extending direction of the pair of tracks R extending in parallel is defined as front and rear, and the width direction is defined as left and right.
[0014]
The carriage 1 is composed of a pair of left and right main bodies 1a mounted on each track R, and a pair of front and rear connecting pipes 1b that connect the main bodies 1a to each other. Each main body 1 a includes a frame 2 that extends in the front-rear direction and wheels 3 that are pivotally supported at both ends of the frame 2.
[0015]
The frame 2 is provided with a pair of left and right wall portions 21 erected on both sides of the wheel 3 and a center portion between the wall portions 21 and a track ring W of a maintenance vehicle (see FIG. 3). ) A stacking portion 2a for stacking, a pair of upper and lower reinforcing plates 23 extending in the front-rear direction on the outer surface of each wall portion 21 and projecting laterally, and wall portions at both ends of each wall portion 21 It consists of a pair of front and rear handles 24 that are U-shaped and fixed from above so as to straddle the wheel 3 sandwiched between 21. Here, the interval between the wall portions 21 is set to be slightly wider than the left and right widths of the raceway ring W, and the bent portions of the handle (portions for gripping by the hand) protrude forward and backward from both ends of the wall portion 21. The reinforcing plate 23 is for preventing the wall portion 21 from being deformed in the front-rear direction.
[0016]
The loading portion 2a is composed of a pair of front and rear blocks 22 that connect the wall portions 21 to each other, and each block 22 is directed toward the center of the frame 2 so that the race ring W is held between the blocks 22 from above. Inclined downward. Further, on the upper surface of each block 22, an inclined surface 22a that comes into contact with the truncated cone portion Wa (see FIG. 3) of the track ring W from below when the track ring W is loaded between the blocks 22 from above is also the same block. When a bearing ring W is loaded between 22 from above, a horizontal surface 22b that comes into contact with the flange portion Wb (see FIG. 3) of the bearing ring W from below and a second inclined surface 22c that connects the inclined surface 22a and the horizontal surface 22b are provided. Is formed.
[0017]
Here, the inclination angle of the block 22 inclined downward toward the center side of the frame 2 and the shape of the upper surface (such as the inclination angle along the right and left of the inclined surface 22a) are related to variations in the diameter of the bearing ring W to be loaded. First, the truncated cone portion Wa and the flange portion Wb of the raceway ring W are appropriately set so as to come into contact with the inclined surface 22a and the horizontal surface 22b from above. In the case of this embodiment, when the bearing ring W having a diameter in the range of 240 mm to 385 mm is loaded, the inclined surface 22a and the horizontal surface 22b come into contact with the truncated cone part Wa and the flange part Wb of the bearing ring W from below. Thus, the inclination angle of the block 22 and the shape of the upper surface are set.
[0018]
A pair of left and right holes 25 (see FIG. 4) are formed at both ends of the wall portion 21, and the wheel 3 extends between the holes 25 to the left and right and is fixed to the axle 31 and the holes 25. Via a pair of left and right bearings 32 (see FIG. 2) fixed to the axle 31 on the inside, it is rotatably supported on the axle 31 while being sandwiched from the left and right by the wall portion 21. Further, each wheel 3 has an insulating structure including a wheel main body 33 made of an insulating material and a metal outer ring portion 34 covering a contact portion with the track R. Specifically, the outer ring part 34 is fitted to the wheel body 33 so as to cover the inner peripheral side of the truncated cone part 3a of the wheel 3 and the flange part 3b connected to the truncated cone part 3a, and the flange part 3b side of the wheel 3 Is supported by the wheel body 33 by a plurality of bolts 35 inserted from the end face. In the present embodiment, nylon resin is used as the material of the wheel body 33, and iron-based material is used as the material of the outer ring portion 34.
[0019]
Further, the end portion of the axle 31 on the flange portion 3b side protrudes from the end surface of the wall portion 21 toward the opposing main body 1a side and is slightly enlarged in diameter, and has an outer diameter substantially the same as the inner diameter of the connection pipe 1b. The enlarged diameter part 31a which has is formed. Then, by inserting both ends of the connecting pipe 1b into the enlarged portion 31a of the main body 1a facing each other, the pair of left and right main bodies 1a are connected by a pair of front and rear connecting pipes 1b extending left and right.
[0020]
The size of the carriage 1 is within the vehicle limit when placed on the track R as shown in the figure, and the amount of protrusion H of the carriage 1 from the upper surface of the track R when placed on the track R is as follows. (See FIG. 3) is smaller than the distance L (see FIG. 3) from the upper surface of the track R to the lower end of the track ring W when the maintenance vehicle is lifted by a jack (turning base) provided in the maintenance vehicle to be moved. As small as possible. Furthermore, the main body 1a and the connecting pipe 1b constituting the carriage 1 are made as light as possible so that the main body 1a and the connecting pipe 1b can be transported by one or two workers. For example, in the case of this embodiment, the weight of each main body 1a and connection pipe 1b is 28 kg and 3.8 kg, respectively.
[0021]
Next, the movement of the maintenance vehicle by the cart 1 having the above structure will be described.
The carriage 1 is always stored in a maintenance vehicle in a state where it is disassembled into four parts each consisting of a pair of main bodies 1a and a connecting portion 1b. When the maintenance vehicle breaks down, the pair of main bodies 1a and the connecting portions 1b are lowered from the maintenance vehicle, and the enlarged portions 31a of the individual main bodies 1a are opposed to each other. The cart 1 is assembled by inserting both ends of each connecting pipe 1b. Furthermore, the assembled cart 1 is placed on the track R by placing the wheels 3 included in the individual main bodies 1 a on the individual tracks R, respectively.
[0022]
Next, after the maintenance vehicle is lifted by a jack provided in the maintenance vehicle, the carriage 1 is moved below the maintenance vehicle so that the pair of blocks 22 are located below the track ring W. Here, the transportation of the main body 1 a and the movement of the carriage 1 on the track R can be easily performed by the operator holding the handle 24.
[0023]
Further, the jack provided in the maintenance vehicle is contracted, and the inclined surface 22a and the horizontal surface 22b formed on the upper surface of each block 22 are brought into contact with the truncated cone portion Wa and the flange portion Wb of the race ring W from below. The track ring W of the maintenance vehicle is loaded between the blocks 22 from above. And in this state, by making the trolley | bogie 1 drive | work on the track | orbit R, a maintenance vehicle can be moved to the place which does not interfere with driving | running | working of a general vehicle. The movement of the maintenance vehicle by the carriage 1 is performed by the power of the maintenance vehicle if the maintenance vehicle can travel on the track R even when the track ring W is loaded on the carriage 1. However, when the maintenance vehicle cannot travel on the track R, the tow vehicle is connected to the maintenance vehicle, and the maintenance vehicle is towed by the towing vehicle.
[0024]
When the maintenance vehicle is moved to a place where there is no hindrance to the travel of the general vehicle, the maintenance vehicle is lifted again by the jack, and then the carriage 1 is pulled out from below the maintenance vehicle. Furthermore, the cart 1 is disassembled into the main body 1a and the connecting pipe 1b by lowering the cart 1 from the track R and removing the connecting pipe 1b from the enlarged portion 31a. The disassembled main body 1a and the connecting pipe 1b are stored in a maintenance vehicle.
[0025]
As described above, according to the carriage 1 according to the present invention, since the carriage 1 is always stored in the maintenance vehicle, it is not necessary to transport the carriage 1 to the site after the maintenance vehicle breaks down. Therefore, it is possible to start the maintenance vehicle moving operation by the carriage 1 immediately after the maintenance vehicle failure, and as a result, the time required for the maintenance vehicle moving operation by the carriage 1 is greatly reduced.
[0026]
Further, since the carriage 1 is stored in the maintenance vehicle in a disassembled state in advance, and the main body 1a and the connection pipe 1b constituting the carriage 1 are reduced in size and weight as much as possible, the main body 1a and the connection pipe to the maintenance vehicle are reduced. The loading and unloading of 1b is easy, and the number of persons required for disassembling and assembling the carriage 1 can be up to two. Moreover, there is no possibility that the disassembled carriage 1 will interfere with the normal functioning of the maintenance vehicle. Since the cart 1 is small and has a small number of parts, the manufacturing cost of the cart 1 can be suppressed.
[0027]
Moreover, since the disassembly / assembly of the carriage 1 is completed only by the operation of attaching / detaching the connecting pipe 1b to / from the enlarged portion 31a, the time required for the disassembly / assembly of the carriage 1 is also greatly reduced. In this case, since the connecting pipe 1b is simply inserted into the enlarged portion 31a, the connecting pipe 1b can be easily attached to and detached from the enlarged portion 31a. For the same reason, even when the width between the tracks R is slightly shifted while the carriage 1 is traveling on the track R, this shift is offset as a difference in the amount of insertion of the connecting pipe 1b with respect to the enlarged portion 31a. The other members constituting the carriage 1 are not affected.
[0028]
In addition, since the size of the carriage 1 is reduced as much as possible, the upward movement of the maintenance vehicle for loading and unloading the maintenance vehicle on the carriage 1 is also minimized. As a result, the operation of loading and unloading the maintenance vehicle on the carriage 1 can be performed by a jack (turning table) provided in the maintenance vehicle. Further, when the track ring W is loaded on the carriage 1, the upper part of the maintenance vehicle protrudes upward from the vehicle limit, and there is no possibility of adversely affecting the upper overhead line or the like.
[0029]
That is, the cart 1 according to the present invention is suitable as a simple cart 1 that is applied to a maintenance vehicle such as a railroad vehicle that is relatively small and light, has no space, and has a low lifting capacity of the turntable. .
[0030]
In addition, since each wheel 3 has an insulating structure including a wheel main body 33 made of an insulating material and a metal outer ring portion 34 that covers a contact portion with the track R, by placing the carriage 1, Short circuit of the track circuit between the left and right tracks R is prevented. Furthermore, by making the wheel main body 33 made of an insulating material, while the wheel 3 is lightened, the wheel main body 33 is made of an insulating material by covering the periphery of the wheel main body 33 with a metal outer ring portion 34, And although the outer diameter of the wheel 3 is made as small as possible for miniaturization, the strength reduction of the whole wheel 3 is prevented. That is, in the cart 1 according to the present invention, it is possible to equip the wheel 3 with good insulation, small size and light weight and excellent strength by adopting the above-described insulating structure.
[0031]
It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that the present invention can be arbitrarily changed within a range not departing from the gist of the present invention according to a specific use environment or the like. For example, it goes without saying that various insulating materials can be applied to the material of the wheel body 33 in addition to the nylon resin. Moreover, what changed suitably the specific shape of each member which comprises the trolley | bogie 1 according to the specification etc. of the maintenance vehicle which should be applied is also contained in this invention.
[0032]
Furthermore, in the cart 1 according to the present invention, since the individual track rings W of the maintenance vehicle are loaded on the main body 1a, the positions of the individual main bodies 1a on the track R are naturally positioned. When the vehicle moves, the connecting pipe 1b is not always necessary. That is, the cart 1 according to the present invention includes a cart that does not have the connecting pipe 1b and is composed only of the pair of main bodies 1a. However, when the pair of left and right main bodies 1a respectively placed on the track R are moved together while maintaining their positional relationship in a state where no maintenance vehicle is loaded, for example, It is more convenient that 1a is connected by the connecting pipe 1b.
[0033]
【The invention's effect】
As described above, according to the present invention, it is possible to reduce the time required for the work of moving the maintenance vehicle by the carriage and improve the operability of the carriage.
[Brief description of the drawings]
FIG. 1 is a front view showing an example of the structure of a cart according to the present invention as seen from the direction indicated by arrow I in FIG.
FIG. 2 is a top view seen from the direction indicated by arrow II in FIG. 1, showing an example of the structure of a carriage according to the present invention.
FIG. 3 is a side view showing an example of the structure of a cart according to the present invention as seen from the direction indicated by arrow III in FIG.
4 is a front view of the frame of the carriage shown in FIGS. 1 to 3 as seen from the direction indicated by arrow IV in FIG. 3. FIG.
[Explanation of symbols]
1 dolly (orbital dolly)
DESCRIPTION OF SYMBOLS 1a Main body 1b Connection pipe 2a Loading part 3 Wheel 33 Wheel main body 34 Outer ring part R Track W Track ring

Claims (3)

A track ring carriage that loads a track ring of a vehicle mounted on a pair of tracks extending in parallel, travels on the track, and moves the vehicle,
A pair of main bodies installed on the track so as to be able to travel with the individual raceways loaded thereon, and a connecting pipe for connecting the pair of main bodies,
The main body and the connecting pipe are both disassembled and can be stored in the vehicle at all times.
Each of the main bodies is disposed along the extending direction of the track, and a pair of wheels for traveling on the track, and a loading unit for loading the track ring provided between the wheels, With
The end of the axle supporting the wheel on the side of the wheel flange protrudes from the end surface of the wall of the main body, and the connecting pipe is inserted into the protruding portion, thereby connecting the connecting pipe and the main body. A track bogie characterized by a structure . The track wheel carriage according to claim 1 , wherein each of the wheels has an insulating structure including a wheel main body made of an insulating material and a metal outer ring portion covering a contact portion with the track. The amount of protrusion from the upper surface of the track when placed on the track is smaller than the distance from the upper surface of the track to the lower end of the track ring when the vehicle is lifted by a jack provided in the vehicle. The track-wheel bogie according to claim 1 or 2, characterized by the above-mentioned.

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