JP6900117B2 - Railway vehicle body support structure and railway vehicle body height adjustment method - Google Patents

Description

The present invention relates to a vehicle body support structure of a railway vehicle and a method of adjusting the vehicle body height of the railway vehicle. Specifically, the present invention is interposed between the vehicle body of the railway vehicle and the bogie to absorb vibration transmitted from the bogie to the vehicle body during traveling. The present invention relates to a body support structure of a railway vehicle equipped with an air spring and a method of adjusting the body height of the railway vehicle.

In general, a railroad vehicle has an air spring interposed between the bogie and the bogie to absorb the vibration transmitted from the bogie to the bogie during traveling. In a railway vehicle equipped with such an air spring, the height of the vehicle body decreases as the diameter of the wheels decreases due to the correction of the tread surface. Therefore, a gap is provided between the bogie and the air spring, and a spacer is inserted into the gap to insert the vehicle body. The height of the is adjusted. Therefore, a cylinder device installed between the bogie and the air spring pushes up the air spring together with the vehicle body to form a spacer insertion gap between the bogie and the air spring (for example, Patent Document 1). reference.).

Japanese Unexamined Patent Publication No. 2009-18758

However, in the height adjustment method described in Patent Document 1, since the cylinder device is arranged in the narrow portion between the lower surface of the air spring and the upper surface of the carriage, it is only necessary to prepare a dedicated special device or jig. However, it took a lot of time and effort to insert the spacer.

Therefore, according to the present invention, the vehicle body support structure of a railway vehicle and the vehicle body height adjustment of a railway vehicle can be easily performed without using a special special device or jig for tread correction. It is intended to provide a method.

In order to achieve the above object, the first vehicle body support structure of the railway vehicle of the present invention includes a tubular diaphragm, an upper member attached to the upper opening of the diaphragm, and a lower member attached to the lower opening of the diaphragm. A vehicle body support structure of a railway vehicle provided with a side member, the upper member of which is attached to the vehicle body side, and the lower member of which is elastically supported by an air spring attached to the bogie side. In a state where the upper surface of the upper member is recessed to form a recess and the upper surface of the upper member is in contact with the lower surface of the vehicle body, the upper surface is formed between the bottom surface of the recess and the lower surface of the vehicle body. It is characterized in that an opening is provided in the space so that a pushing-up means for pushing up the vehicle body can be taken in and out.

Further, the second vehicle body support structure of the railroad vehicle of the present invention includes a tubular diaphragm, an upper member attached to the upper opening of the diaphragm, and a lower member attached to the lower opening of the diaphragm. In the vehicle body support structure of a railroad vehicle in which the upper body member is attached to the vehicle body side and the lower member member is elastically supported by the bogie side by an air spring, the upper member member is attached. A disk-shaped convex portion having an outer diameter smaller than the outer diameter of the upper member is formed on the upper surface of the upper member, and the upper surface of the upper member is brought into contact with the lower surface of the vehicle body. It is characterized in that a mounting portion is provided in a space formed between the vehicle body and the lower surface of the vehicle body so that a pushing-up means for pushing up the vehicle body can be mounted along the peripheral wall surface of the convex portion.

Further, the third vehicle body support structure of the railroad vehicle of the present invention includes a tubular diaphragm, an upper member attached to the upper opening of the diaphragm, and a lower member attached to the lower opening of the diaphragm. In the vehicle body support structure of a railway vehicle in which the upper member is attached to the vehicle body side and the lower member is elastically supported by the bogie by an air spring attached to the bogie side, the vehicle body A disk-shaped convex portion having an outer diameter smaller than the outer diameter of the upper member is formed on the lower surface, and the upper surface of the upper member is in a state where the lower surface of the convex portion is in contact with the upper surface of the upper member. It is characterized in that a mounting portion is provided in a space formed between the vehicle body and the lower surface of the vehicle body so that a pushing-up means for pushing up the vehicle body can be mounted along the peripheral wall surface of the convex portion.

Further, the first vehicle body height adjusting method of the present invention in the railway vehicle provided with the first vehicle body support structure includes a pushing-up means mounting step of mounting the pushing-up means on the bottom surface of the recess, and the pushing-up means. A vehicle body pushing step of pushing up the vehicle body by operating the pushing means after the completion of the mounting process to separate the lower surface of the vehicle body from the upper surface of the upper member, and a vehicle body pushing step of separating the lower surface of the vehicle body from the upper surface of the upper member, and an upper surface of the upper member after the completion of the vehicle body pushing process. A spacer mounting step of inserting a spacer into a gap formed between the vehicle body and the lower surface of the vehicle body, and a vehicle body pushing-up releasing step of releasing the pushing-up of the vehicle body by operating the pushing-up means after the spacer mounting process is completed. It is characterized by including a push-up means removing step of removing the push-up means from the bottom surface of the recess after the vehicle body push-up release step is completed.

Further, the second vehicle body height adjusting method of the present invention in the railway vehicle provided with the second vehicle body support structure includes a pushing-up means mounting step of mounting the pushing-up means on the upper surface of the upper member, and the pushing-up means. A vehicle body pushing step of pushing up the vehicle body by operating the pushing-up means after the means mounting process is completed to separate the lower surface of the vehicle body from the upper surface of the convex portion, and a vehicle body pushing step of the convex portion after the completion of the vehicle body pushing process. A spacer mounting step of inserting a spacer into a gap formed between the upper surface and the lower surface of the vehicle body, and a vehicle body push-up release step of releasing the push-up of the vehicle body by operating the push-up means after the spacer mounting step is completed. It is characterized by including a push-up means removing step of removing the push-up means from the upper surface of the upper member after the completion of the vehicle body push-up release step.

Further, the third vehicle body height adjusting method of the present invention in the railway vehicle provided with the third vehicle body support structure includes a pushing-up means mounting step of mounting the pushing-up means on the upper surface of the upper member, and the pushing-up means. A vehicle body pushing step of pushing up the vehicle body by operating the pushing-up means after the means mounting process is completed to separate the lower surface of the convex portion from the upper surface of the upper member, and a vehicle body pushing step of separating the lower surface of the convex portion from the upper surface of the upper member, and the convex portion after the vehicle body pushing process is completed. A spacer mounting step of inserting a spacer into a gap formed between the lower surface of the vehicle and the upper surface of the upper member, and a vehicle body pushing-up that releases the pushing-up of the vehicle body by operating the pushing-up means after the spacer mounting step is completed. It is characterized by including a release step and a push-up means removing step of removing the push-up means from the upper surface of the upper member after the completion of the vehicle body push-up release step.

According to the present invention, in the first configuration, since an opening is provided in the space formed between the bottom surface of the recess in which the upper member is recessed and the lower surface of the vehicle body, the pushing-up means can be easily taken in and out through the opening. This makes it possible to quickly attach the spacer. Further, in the second and third configurations, only by providing a convex portion on either one of the upper member and the lower surface of the vehicle body, the pushing-up means is placed in the space formed between the upper surface of the upper member and the lower surface of the vehicle body. Since it can be placed, the spacer can be quickly attached with a simple structure.

It is a perspective view which shows the 1st form example of the body support structure of the railroad vehicle of this invention, and is explanatory drawing which shows the pushing means mounting process and the car body pushing process in the body height adjustment method of a railroad vehicle. Similarly, it is explanatory drawing which shows the spacer mounting process. Similarly, it is explanatory drawing which shows the car body push-up release process. It is also a perspective view of the vehicle body support structure which shows the modification of the 1st form example. It is sectional drawing of the vehicle body support structure which shows the 2nd Embodiment example of this invention, and is explanatory drawing which shows the pushing means mounting process and the vehicle body pushing process in the vehicle body height adjustment method.

First, FIGS. 1 to 3 show an example of the first embodiment of the vehicle body support structure of the railway vehicle and the vehicle body height adjusting method of the railway vehicle of the present invention. This is for absorbing the vibration transmitted between the vehicle body side and the bogie side during traveling by the air spring 11 interposed between the vehicle body side and the bogie side of the railway vehicle provided with the so-called bolsterless bogie.

As shown in FIGS. 1A and 1B, the air spring 11 includes an upper member 12 attached to the vehicle body side of the railway vehicle, a lower member 13 attached to the bogie side of the railway vehicle, an upper member 12 and the air spring 11. The lower member 13 is provided with a tubular diaphragm 14 to which both upper and lower ends are fastened to each other.

The upper member 12 is made of metal and is formed in a thick disk shape, and on the central upper surface side, a metal cylindrical upper support protrusion that is internally fitted in a vehicle body side support hole 15a provided on the lower surface of the vehicle body 15. 16 is projected. Further, on the upper surface side of the upper member 12, recesses 17 are formed at four positions on the circumference around the central axis of the upper support protrusion 16 at equal intervals.

The recess 17 is formed by an L-shaped bottom surface 17a in which the upper surface of the upper member 12 is flatly recessed and a wall surface 17b in the vertical direction, and has a width and height capable of accommodating a pushing means 18 for pushing up the vehicle body 15. Has a Further, in a state where the upper surface of the upper member 12 is in contact with the lower surface of the vehicle body 15, a horizontal opening that allows the pushing-up means 18 to be taken in and out of the space formed between the bottom surface 17a and the lower surface of the vehicle body 15. 19 is provided.

As shown in FIG. 1C, the pushing-up means 18 directly pushes up the lower surface of the vehicle body 15 by extending the piston rod 18a while being mounted on the bottom surface 17a, and the pushing-up means 18 directly pushes up the lower surface of the vehicle body 15 according to the pushing amount. It is a small hydraulic cylinder device having a stroke (for example, 30 mm) that can separate the lower surface of the above member 12 from the upper surface of the upper member 12 and secure a gap 21 for inserting the spacer 20 for height adjustment.

The diaphragm 14 is a flexible tubular body in which a rubber tubular body is reinforced with fibers, and the upper and lower ends thereof are fixed to the upper member 12 and the lower member 13, respectively, and the inside is filled with compressed air. It elastically supports the vehicle body side to which the upper member 12 is attached while exhibiting a predetermined spring characteristic with respect to the vertical movement of the vehicle body side.

The lower member 13 has a cylindrical laminated rubber 22 mounted on the carriage side as a main component, and the carriage 24 is located on the lower center side of the flange 23 bonded to the lower end of the laminated rubber 22. A metal, cylindrical lower support protrusion (not shown) that is internally fitted into a bogie-side support hole (not shown) provided in the frame is projected.

The upper support protrusion 16 and the vehicle body side support hole 15a are connected to a vehicle body height adjusting valve (not shown) for adjusting the height of the vehicle body 15 via an air supply path for supplying air into the diaphragm 14. ing. Further, the lower support protrusion and the bogie side support hole are connected to an auxiliary air tank (not shown) via a ventilation path. In some cases, an auxiliary air tank (not shown) is installed between the paths connected to the vehicle body height adjusting valve (not shown).

In a railway vehicle having such a vehicle body support structure, when the diameter of the wheels is reduced due to the correction of the tread and the height of the vehicle body 15 is reduced by a predetermined amount (for example, 10 to 20 mm), the vehicle body height is reduced during vehicle maintenance. Is adjusted. This height adjusting method is performed in the order of the pushing-up means mounting step, the vehicle body pushing-up step, the spacer mounting step, the car body pushing-up releasing step, and the pushing-up means removing step.

Here, a procedure for adjusting the height of the vehicle body provided with the vehicle body support structure will be described with reference to FIGS. 1 to 3. First, the vehicle is moved to a maintenance position such as a pit, and the pushing means 18 is placed on the bottom surface 17a through the opening 19 as shown in FIG. 1 (B). In this pushing-up means mounting step, since the openings 19 are provided at both ends of the L-shaped recess 17, the pushing-up means 18 inserted from the opening 19 on one end side is visually recognized from the opening 19 on the other end side. By doing so, the pushing-up means 18 are placed at appropriate positions on the bottom surface 17a, that is, the four pushing-up means 18 are placed at equal intervals on the circumference around the central axis of the upper support protrusion 16. It can be easily determined that the state is in a state of being.

After the pushing-up means mounting step is completed, as shown in FIG. 1C, a hydraulic device (not shown) is operated to extend the piston rod 18a of the pushing-up means 18. At this time, the lower surface of the vehicle body 15 is separated from the upper surface of the upper member 12, and a gap 21 for inserting the spacer 20 is formed between the lower surface of the vehicle body 15 and the upper surface of the upper member 12.

Subsequently, as shown in FIGS. 2A to 2C, a spacer mounting step of inserting the spacer 20 into the gap 21 is executed. The spacer 20 is a circular steel plate having a predetermined thickness, is formed to have the same outer diameter as the upper member 12, and is formed by passing the upper support protrusion 16 through a notch 20a extending from the center toward the peripheral edge to pass the upper member 12. It is placed on the upper surface of. Further, a notch portion 20b is formed to prevent the spacer 20 from interfering with the piston rod 18a when the spacer 20 is inserted. If necessary, a plurality of spacers 20 can be stacked to adjust the thickness.

After the spacer mounting step is completed, as shown in FIGS. 3A and 3B, the hydraulic device is operated to contract the piston rod 18a of the pushing means 18. By executing this vehicle body push-up release step, the upper surface of the spacer 20 is pressed against the lower surface of the vehicle body 15 by the pressing force of the air spring 11. As a result, the vehicle body 15 is elastically supported by the bogie 24 at a predetermined height via the air spring 11. Since the length of the upper support protrusion 16 is formed to be longer corresponding to the thickness of the spacer 20, the tip end portion of the upper support protrusion 16 does not come out from the vehicle body side support hole 15a, and the inner fitting portion. The airtight condition is also well secured.

After the vehicle body push-up release step is completed, the height adjustment work is completed by executing the push-up means removal step in the reverse procedure of the push-up means mounting step.

As described above, since the opening 19 is provided in the space formed between the bottom surface 17a of the recess 17 in which the upper surface of the upper member 12 is recessed and the lower surface of the vehicle body 15, the pushing-up means 18 can be easily pushed through the opening 19. It can be taken in and out, and the spacer 20 can be quickly attached. In addition, special equipment and jigs used when arranging the cylinder device are prepared in the narrow part between the lower surface of the air spring 11 and the upper surface of the carriage 24, which was necessary in the conventional height adjustment method. Since it is not necessary to do this, it is possible to more easily adjust the height of the vehicle body at the time of tread cutting.

FIG. 4 shows each modification of the above-mentioned first embodiment. In the modified examples shown in FIGS. 4A and 4B, the upper surface of the upper member 12 has an appropriate shape without generating excessive stress at the contact portion between the upper surface of the upper member 12 and the lower surface of the vehicle body 15. The recess 17 is formed by denting. FIG. 4A has a bottom surface 17a in which four points on the circumference of the upper support protrusion 16 around the central axis are recessed in a substantially triangular shape. Further, FIG. 4B has a bottom surface 17a in which two points at symmetrical positions sandwiching the central axis of the upper support protrusion 16 are recessed in a straight line. These bottom surfaces 17a are formed to have a width and depth on which the pushing-up means 18 can be stably placed, and the wall surface 17b is formed to be slightly higher than the height of the pushing-up means 18 in the state where the piston rod 18a is contracted. Therefore, stable push-up can be realized without deteriorating workability when the push-up means 18 is taken in and out.

In the modified example shown in FIG. 4C, a disk-shaped convex portion 25 having an outer diameter smaller than the outer diameter of the upper member 12 is formed on the upper surface of the upper member 12. In this case, in a state where the upper surface of the convex portion 25 is in contact with the lower surface of the vehicle body 15, the pushing-up means 18 is placed around the convex portion 25 in the space formed between the upper surface of the upper member 12 and the lower surface of the vehicle body 15. A mounting portion 26 is formed so that the mounting portion 26 can be mounted along the wall surface 25a. The mounting portion 26 can also be formed by recessing the outer circumference of the upper surface of the upper member 12 in a ring shape with a constant width.

FIG. 5 shows an example of a second form of the vehicle body support structure. In the following description, the same components as the components of the vehicle body support structure shown in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 5A, the vehicle body support structure shown in this embodiment includes an air spring 32 in which the upper surface of the upper member 31 having a disk shape is formed flat over the entire surface and a protrusion on the lower surface of the vehicle body 15. The air spring 32 is composed of a convex portion 33 having a disk shape provided, and the air spring 32 is located between the vehicle body side and the bogie side in a state where the upper surface of the upper member 31 is in contact with the lower surface of the convex portion 33. It is being mediated.

Further, the convex portion 33 has an outer diameter smaller than the outer diameter of the upper member 31, and a round hole 33a through which the upper support protrusion 16 can be inserted is formed in the center of the convex portion 33 to form a lower surface of the convex portion 33. The pushing-up means 18 can be placed along the peripheral wall surface 33b of the convex portion 33 in the space formed between the upper surface of the upper member 31 and the lower surface of the vehicle body 15 in a state of being in contact with the upper surface of the upper member 31. A mounting portion 34 is formed.

After the pushing means 18 are placed at equal intervals along the peripheral wall surface 33b, as shown in FIG. 5B, when the piston rod 18a of the pushing means 18 is extended by operating the hydraulic device, the convex portion 33 The lower surface of the upper member 31 is separated from the upper surface of the upper member 31, and a gap 35 for inserting the spacer 20 is formed.

In this way, a mounting portion 34 is formed in the space formed between the upper surface of the upper member 31 and the lower surface of the vehicle body 15 so that the pushing-up means 18 can be mounted along the peripheral wall surface 33b of the convex portion 33. Therefore, the pushing-up means 18 can be easily taken in and out, and the spacer 20 can be quickly attached. Further, since the machining such as cutting performed on the upper member 31 can be significantly reduced, the manufacturing cost can be reduced.

Although the bolsterless trolley is shown in this embodiment, the bolster-equipped trolley may be used. In this case, an air spring is interposed between the vehicle body and the bolster. Further, the shape of the opening and the mounting portion is arbitrary as long as the pushing means can be taken in and out from the horizontal direction.

11 ... Air spring, 12 ... Upper member, 13 ... Lower member, 14 ... Diaphragm, 15 ... Body, 15a ... Body side support hole, 16 ... Upper support protrusion, 17 ... Recess, 17a ... Bottom surface, 17b ... Wall surface, 18 ... Pushing means, 18a ... Piston rod, 19 ... Opening, 20 ... Spacer, 20a, 20b ... Notch, 21 ... Gap, 22 ... Laminated rubber, 23 ... Flange, 24 ... Bogie, 25 ... Convex part, 25a ... Peripheral wall surface, 26 ... mounting part, 31 ... upper member, 32 ... air spring, 33 ... convex part, 33a ... round hole, 33b ... peripheral wall surface, 34 ... mounting part, 35 ... gap

Claims (6)

A tubular diaphragm, an upper member attached to the upper opening of the diaphragm, and a lower member attached to the lower opening of the diaphragm are provided, the upper member is attached to the vehicle body side, and the lower member is In the vehicle body support structure of a railway vehicle in which the vehicle body is elastically supported by the bogie by an air spring attached to the bogie side, the upper surface of the upper member is recessed to form a recess, and the upper surface of the upper member is formed. In a state where the vehicle is in contact with the lower surface of the vehicle body, an opening is provided in the space formed between the bottom surface of the recess and the lower surface of the vehicle body so that the pushing-up means for pushing up the vehicle body can be taken in and out. The body support structure of a railroad vehicle characterized by. A tubular diaphragm, an upper member attached to the upper opening of the diaphragm, and a lower member attached to the lower opening of the diaphragm are provided, the upper member is attached to the vehicle body side, and the lower member is In the vehicle body support structure of a railway vehicle in which the vehicle body is elastically supported by the air spring attached to the bogie side, an outer diameter smaller than the outer diameter of the upper member is formed on the upper surface of the upper member. The vehicle body is formed in a space formed between the upper surface of the upper member and the lower surface of the vehicle body in a state where a disk-shaped convex portion is formed and the upper surface of the convex portion is in contact with the lower surface of the vehicle body. A vehicle body support structure for a railway vehicle, characterized in that a mounting portion is provided so that a pushing-up means for pushing up is provided along the peripheral wall surface of the convex portion. A tubular diaphragm, an upper member attached to the upper opening of the diaphragm, and a lower member attached to the lower opening of the diaphragm are provided, the upper member is attached to the vehicle body side, and the lower member is In a vehicle body support structure of a railway vehicle in which the vehicle body is elastically supported by the air spring attached to the bogie side, the lower surface of the vehicle body has an outer diameter smaller than the outer diameter of the upper member. In a state where a disk-shaped convex portion is formed and the lower surface of the convex portion is in contact with the upper surface of the upper member, the vehicle body is formed in a space formed between the upper surface of the upper member and the lower surface of the vehicle body. A vehicle body support structure for a railway vehicle, characterized in that a mounting portion is provided so that a pushing-up means for pushing up is provided along the peripheral wall surface of the convex portion. In the method for adjusting the height of a railroad vehicle having a vehicle body support structure according to claim 1, the pushing-up means mounting step of mounting the pushing-up means on the bottom surface of the recess and the pushing-up means mounting step after completion of the pushing-up means mounting step A vehicle body pushing step of pushing up the vehicle body by operating the pushing-up means to separate the lower surface of the vehicle body from the upper surface of the upper body member, and after the vehicle body pushing-up process is completed, the upper surface of the upper body member and the lower surface of the vehicle body A spacer mounting step of inserting a spacer into a gap formed between them, a vehicle body push-up release step of releasing the push-up of the vehicle body by operating the push-up means after the spacer mounting step is completed, and a vehicle body push-up release step of the vehicle body push-up release step. A method for adjusting the height of a railroad vehicle body, which comprises a step of removing the pushing means for removing the pushing means from the bottom surface of the recess after completion. In the method for adjusting the vehicle body height of a railway vehicle provided with the vehicle body support structure according to claim 2, after the pushing-up means mounting step of mounting the pushing-up means on the upper surface of the upper member and the pushing-up means mounting step are completed. A vehicle body pushing step of pushing up the vehicle body by operating the pushing-up means to separate the lower surface of the vehicle body from the upper surface of the convex portion, and after the completion of the vehicle body pushing process, the upper surface of the convex portion and the lower surface of the vehicle body. A spacer mounting step of inserting a spacer into a gap formed between the two, a vehicle body push-up release step of releasing the push-up of the vehicle body by operating the push-up means after the spacer mounting step is completed, and a vehicle body push-up release step of releasing the push-up of the vehicle body. A method for adjusting the height of a railroad vehicle body, which comprises a step of removing the pushing means for removing the pushing means from the upper surface of the upper member after the end of the process. In the method for adjusting the vehicle body height of a railway vehicle provided with the vehicle body support structure according to claim 3, after the pushing-up means mounting step of mounting the pushing-up means on the upper surface of the upper member and the pushing-up means mounting step are completed. A vehicle body pushing step of pushing up the vehicle body by operating the pushing means to separate the lower surface of the convex portion from the upper surface of the upper member, and a vehicle body pushing step of separating the lower surface of the convex portion and the upper member after the completion of the vehicle body pushing step. A spacer mounting step of inserting a spacer into a gap formed between the upper surface and a vehicle body pushing-up releasing step of releasing the pushing-up of the vehicle body by operating the pushing-up means after the spacer mounting step is completed, and a vehicle body pushing-up process. A method for adjusting the height of a railroad vehicle body, which comprises a push-up means removing step of removing the push-up means from the upper surface of the upper member after the release step is completed.

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