JP3521184B2 - Underfloor piping system for railway vehicles using piping units - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor piping system for railway vehicles. The underfloor piping is unitized to simplify the piping structure, and by assembling the piping under the floor, rationalization and efficiency improvement of the piping installation work can be achieved. As a result, the construction period can be shortened and the cost can be remarkably reduced.

[0002]

2. Description of the Related Art There are various types of underfloor piping structures for railway vehicles (for example, Japanese Patent Publication No. 6-87623 and Japanese Patent Publication No. 5-15).
No. 586), in the underfloor piping work for these railway vehicles, the vehicle underframe (frame) is turned upside down and various pipes such as electric wire ducts, wiring, and air pipes are sequentially installed with the lower surface facing up. ing. In this conventional piping system, the underfloor equipment is directly attached to the lower surface of the underframe, and there is no space for piping installation. Therefore, the underfloor equipment is installed through the hole of the lateral beam of the vehicle underframe. This is troublesome because the piping is sequentially installed on the vehicle underframe that is turned upside down, and a lot of man-hours are required. Therefore, this piping installation work is one of the factors that prolong the vehicle manufacturing period. If the piping installation work is rationalized and streamlined, the construction period can be greatly shortened and the piping installation cost can be significantly reduced.

[0003]

SUMMARY OF THE INVENTION The present invention has an object of rationalizing and improving the efficiency of piping installation work for railway vehicles. The piping is unitized so that the unit can be easily and easily assembled to a vehicle underframe. The task is to devise the underfloor piping system.

[0004]

[Means taken for solving the problems] The means taken for solving the above problems are constituted by the following (a) and (b). (B) Various pipes are arranged side by side on the lower surface of the unit assembly support arranged at a predetermined interval and fixed by pipe retainers, and unit jigs extending in the longitudinal direction of the pipe are fixed to the undersides of the left and right ends of the unit assembly support arranged at a predetermined interval and under the floor The piping unit is configured, (b) the underfloor piping unit is supported by the unit assembly support.
While the lower, so mounting on the vehicle underframe obtained by inverting it fixed bolted to the unit assembly supported by the cross beam the underside of the vehicle underframe. In addition, the above "bottom surface" does not pass through the vehicle underframe.
Underside of cross beam of vehicle underframe in the normal state , same shape
Unit fixed to the underside of the vehicle underframe when
It means the lower surface of the left and right ends of the support.

[0005]

Operation: Various pipes are arranged side by side on the lower surface of the unit assembly support arranged at a predetermined interval and fixed by pipe retainers, and unit jigs extending in the longitudinal direction of the pipe are fixed to the lower surface of the left and right ends of the unit assembly support arranged at a predetermined interval. Although the underfloor piping unit is configured, the assembling work of this underfloor piping unit is performed separately from the vehicle underframe assembly work, and is completely independent of the vehicle underframe and the equipment arranged on the underside of the underframe. Since it is performed, the workability is good and the piping work is performed efficiently. The underfloor piping unit is lifted by hooking the hanging wire hooks on the unit jig that is fixedly attached to the lower left and right sides of the unit assembly support and extends in the longitudinal direction of the piping. It can be easily moved and placed on top of it. At this time, the underfloor piping unit
Upside down with the unit assembly support down.
It will be placed on the raised vehicle underframe ( see FIG. 5).
Then, the unit assembly support is bolted to the upper surface of the cross beam of the vehicle underframe to fix the underfloor piping unit to the vehicle underframe. Connect the underfloor piping units to each other by connecting the piping of the underfloor piping unit to each other with a relay pipe (for example, a wire connector, a short pipe provided with union joints at both ends) interposed therebetween, or connect to the underfloor equipment, Underfloor piping is installed. Assembling the underfloor piping unit to the vehicle underframe and piping installation work using the same piping unit are extremely easy.
It is easy and significantly reduces the man-hours compared to the conventional underfloor piping installation work.

[0006]

[Embodiment 1] In Embodiment 1, the unit assembly support in the solving means is composed of a planar U-shaped plate material, and long holes in the longitudinal direction of the pipe are provided at the projecting portions at both left and right ends thereof, and mounting bolts are attached to the long holes. It was inserted and fixed to the horizontal beam of the vehicle underframe by bolting.

The pipe support can be brought out of the horizontal beam by mounting and fixing the protruding portions at the left and right ends of the unit assembly support having the planar U-shape on the horizontal beam of the vehicle underframe. It is possible to effectively avoid the interference between the mounting bolts for fixing the pipe and the horizontal beam. Also,
Since the elongated hole is provided in the projecting portion, the adjustment range of the position of the unit assembly support with respect to the bolt hole provided in the lateral beam of the vehicle underframe can be widened, and the position adjustment work can be easily performed.

[0007]

[Embodiment 2] Embodiment 2 is that the unit jig in the solving means is constituted by a plate material having a "shaped cross section".

[Operation] When the underfloor piping unit is lifted by hanging the hanging wire hook on the unit jig,
Although a large bending moment acts on the unit jig, since the unit jig has a cross section of "shape, it has a large strength against bending moment and has a large rigidity, so that the bending of the underfloor piping unit when lifted can be reduced, Moreover, since the plate thickness of the unit jig can be reduced, the weight thereof can be reduced.

[0008]

[Third Embodiment] In the third embodiment, a device mounting leg having a support height of less than 70 mm is provided on the lower surface of the vehicle underframe, and the underfloor device is supported by the device mounting leg, and the underfloor device and the lower surface of the vehicle underframe are supported.
The underfloor piping unit is arranged between the two.

Since the thickness of the underfloor piping unit can be set to less than 70 mm including the thickness of the piping, the underfloor equipment should be supported by the equipment mounting legs provided on the lower surface of the vehicle underframe and having a supporting height of less than 70 mm. Depending on the underside of vehicle underframe and underfloor equipment
Since a required space is secured between and, the underfloor equipment can be mounted on the underfloor piping unit without any problem.
In addition, the height of the support surface of the underfloor equipment is 70
The height from the rail surface at the lower end of the underfloor equipment can be set to be equal to or higher than the reference value by setting the height to be less than mm. In addition,
The lower limit of the supporting height of the underfloor equipment by the equipment mounting leg is a height at which the underfloor equipment does not interfere with the underfloor piping unit, and is naturally determined according to the maximum thickness of each underfloor piping unit.

[0009]

EXAMPLES Next, examples will be described with reference to the drawings. Although the size of the underfloor piping unit is arbitrary, two underfloor piping units 1 and 2 are used for one vehicle in consideration of work efficiency and handleability. For interconnection of various pipes between the underfloor pipe units 1 and 2, short pipes having union joints at both ends are used. Since the union joint is conventionally known as a fixed type pipe joint,
Although the structure is not shown and described, since the union joint can adjust the longitudinal direction, the union joint of the short pipes adjusts the longitudinal direction between the underfloor piping units. Also, a rubber pipe can be used as the relay pipe, but considering safety and cost,
It is most practical to use a short pipe with a metal pipe and a union joint. The unit assembly support 10 is a plane-shaped U-shaped metal plate, and has elongated holes 10b in the longitudinal direction of the projecting portions 10a at the left and right ends thereof. The unit assembly supports 10 are arranged at predetermined intervals, and various pipes 1 are placed on the unit assembly supports 10.
1a to 11g are lined up, and the pipe pressers 12a to 12d are bolted.
The various pipes are fixed to the unit assembly support 10 by fixing them to the unit assembly support 10 with the nuts 13b.

In addition, the unit jig 14 having a cross section is attached to the left and right ends of the unit assembly support 10 by bolts and nuts 13a.
It is fixed at. As a result, the underfloor piping unit 1,
The rigidity (shape retention) of 2 is improved. Since the underfloor piping units 1 and 2 are assembled in a state of being turned upside down, the horizontal flange of the unit jig 14 is supported by the unit assembly during assembly.
10 and the vertical flange 14a faces upward. A vehicle in which the underfloor piping units 1, 2 are turned upside down, a hook (not shown) of a hanging wire W (see FIG. 5) is applied to the unit jig 14, and the unit jig 14 is lifted by a crane and turned upside down. Underframe S
Place it on top. Unit assembly support for underfloor piping unit 1
A mounting bolt is passed through the long hole 10b of 0 and fixed to the cross beam B of the vehicle underframe S. At this time, the unit assembly support 1
The projecting portions 10a at the left and right ends of 0 overlap the horizontal beam B, and the pipe supporting portion 10c is located outside the horizontal beam B.
The projecting portion 10a of the unit assembly support 10 has a long hole 10b.
The position of the unit assembly support 10 can be adjusted in the longitudinal direction of the vehicle underframe S, so that the position adjustment of the underfloor piping units 1 and 2 with respect to the vehicle underframe S is performed. When attaching the underfloor equipment 16 to the lower surface of the vehicle underframe S, the attachment position is the underfloor piping unit 1,
If there is no overlap with 2, there is no particular problem, but underfloor equipment 16
If the installation position of overlaps with the underfloor piping units 1 and 2,
A device mounting leg 15 is provided on the lower surface of the cross beam B of the vehicle underframe S, and an underfloor device 16 is supported by this. At this time, the underfloor device 1
Equipment mounting leg 1 so that 6 does not interfere with the underfloor piping unit
Although it is necessary to raise the supporting height h by 5 a little, since the thickness of the underfloor piping unit is about 50 to 70 mm at the maximum, the supporting height h by the equipment mounting leg 15 can be suppressed to less than 70 mm. When the supporting height of the underfloor device by the device mounting leg 15 is less than 70 mm, the height H from the rail surface of the underfloor device lower surface can be ensured to be equal to or higher than the reference value. In other words, regarding the underfloor piping unit with which the underfloor equipment 16 overlaps, it is necessary that the maximum thickness thereof be less than 70 mm.

[0011]

According to the present invention, the underfloor piping of a railway vehicle is made into subassemblies as several underfloor piping units, which are assembled to a vehicle underframe, and each piping of each underfloor piping unit is connected by a relay pipe equipped with a connector and a pipe joint. By connecting the underfloor piping to the underside of the cross beam of the vehicle underframe, it is possible to assemble the above-mentioned underfloor piping unit separately from the work for assembling the vehicle underframe. This is possible, and the work of assembling the vehicle frame is extremely simple. Therefore, the vehicle manufacturing period is remarkably shortened, and the work man-hours for installing the underfloor pipe are remarkably reduced. Therefore, vehicle manufacturing costs are greatly reduced. In addition, the base of the underfloor piping unit is constructed by connecting a plurality of unit assembly supports in a U-shape in plan view with a unit jig having a cross section of "shape", so the rigidity (shape retention) of the underfloor piping unit is sufficient. It can be made as light as possible while securing it.In addition, by hooking the hanging wire to the unit jig, the underfloor piping unit can be easily transferred by a crane, and the underfloor piping unit can be transferred during this transfer. In addition, long holes are provided on the overhanging parts on both the left and right ends of the unit assembly support to adjust the mounting position of the underfloor piping unit with respect to the vehicle underframe. The underfloor piping unit can be easily and easily attached to the vehicle underframe by using, and interference between the tube retainer fixing bolt and the horizontal beam of the vehicle underframe can be prevented. It is possible to result avoided.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment in which an underfloor piping unit is arranged on a vehicle underframe which is turned upside down.

FIG. 2 is an enlarged view of a main part of the underfloor piping unit according to the embodiment.

3 is a cross-sectional view obtained by vertically inverting the XX cross section of FIG. 1.

FIG. 4 is a cross-sectional view in which the Y-Y cross section of FIG. 1 is vertically inverted.

FIG. 5 is a conceptual diagram of a transfer operation of the underfloor piping unit of the embodiment onto the vehicle underframe which is turned upside down.

[Explanation of symbols]

S: Vehicle underframe B: Horizontal beam of vehicle underframe W: Hanging wire 1,2: Underfloor piping unit 10: Unit assembly support 10a: Overhang of unit assembly support 10b: long hole 10c: Unit assembly support pipe support section 11a-11g: Various pipes 12a to 12d: Tube retainer 13a, 13b: bolts and nuts 14: Unit jig 14a: Vertical flange of unit jig 15: Equipment mounting leg 16: Underfloor equipment h: mounting height of the underfloor device 16 by the device mounting leg 15 H: Height of underfloor equipment bottom surface from rail

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification symbol FI H02G 3/38 (56) References JP-A-2-6265 (JP, A) JP-A-64-78970 (JP, A) Actual Open 61-177968 (JP, U) Open 61-53263 (JP, U) Open 57-60873 (JP, U) Open Flat 2-75373 (JP, U) Open 60-130172 ( JP, U) Japanese Patent Publication 6-87623 (JP, B2) Japanese Patent Publication 5-15586 (JP, B2) Jitsuko Sho 51-32953 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) B61F 1/00-1/14 B61D 17/00

Claims (7)

(57) [Claims] 1. A normal state of being attached to a lower surface of a unit assembly support arranged at predetermined intervals, that is, a horizontal beam of a vehicle underframe.
Units side by side various pipes to the lower surface of the assembly support is fixed in the tube retainer, hanging a left and right end lower surface units jig extending pipe longitudinal direction of the unit assembly support arranged at predetermined intervals
The underfloor piping unit is configured by fixing the jig for hanging the lifting hook, and the underfloor piping unit is placed on the vehicle frame that has been turned upside down with the unit assembly support facing down. Beside the vehicle underframe, the support is turned upside down.
An underfloor piping system for railway vehicles fixed to the upper surface of the beam, that is, the lower surface of the horizontal beam of the underframe of the vehicle under normal conditions, by bolting. 2. A vehicle underframe, wherein the unit assembly support is composed of a planar U-shaped plate material, and elongated holes in the longitudinal direction of the pipe are provided in the projecting portions at both left and right ends thereof, and mounting bolts are inserted into the elongated holes. The underfloor piping system for a railway vehicle according to claim 1, wherein the underfloor piping system is fixed to the horizontal beam by bolting. 3. The underfloor piping system for a railroad vehicle according to claim 1 or 2, wherein the unit jig is formed of a plate material having a cross section. 4. An under-floor piping unit is provided between the under-floor equipment and the lower surface of the vehicle underframe by providing an under-floor equipment with an equipment mounting leg having a support height of less than 70 mm on the underside of the vehicle underframe.
The underfloor piping system for a railway vehicle according to claim 1, 2 or 3, wherein a knit is arranged . 5. A variety of pipes are arranged side by side on a lower surface of a unit assembly support arranged at a predetermined interval and fixed by pipe retainers, and unit jigs extending in the longitudinal direction of the pipe are fixed to lower surfaces of both left and right ends of the unit assembly support arranged at a predetermined interval. , Claim 1 to Claim 3
Units for underfloor piping of railway vehicles. Wherein said unit assembly support composed of a plate material of a planar shape U-shaped pipe longitudinal rail underfloor piping unit for a vehicle according to claim 5 in which a long hole in the projecting portion of the left and right ends. 7. The underfloor piping unit for a railway vehicle according to claim 5 or 6, wherein the unit jig is constituted by a plate material having a cross section of "shape".