JPS6244042A - Rotary electric machine for rolling stock - Google Patents

Abstract

PURPOSE:To remove the residual stress from a fitting base plate and others and to facilitate their fitting in assemblage by fixing to both ends of a stator an iron core presser barrel formed to be integrated with the lug piece and wear plate, and by fixing the fitting base plate to the lug piece and the wear plate. CONSTITUTION:An iron core presser barrel 20 formed to be incorporated with a lug piece 20a and a wear plate 22 close-by is affixed to both ends of a stator 12 formed with laminated iron core. To each lug piece 20a of this core presser barrel 20 on both sides along the stator 12, a fitting base plate 21 is fixed which is abutted against the beam member 1 of the bogie. Further, to each wear plate 22 of core presser barrel 20 a fitting leg base plate 23 abutted against the beam member 1 of the bogie is fixed along the stator 12. Thus the residual stress due to welding is not caused and the productivity can be improved since the assemblage may easily be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an 11-vehicle rotating electric machine, such as a heavy-duty induction traction motor, and particularly to a mounting device for this vehicular rotating electric machine.

[Technical background of the invention and its problems]

This type of mounting device for a rotating electrical machine for a vehicle that has already been proposed is constructed as shown in FIGS. 12 to 15.

In FIGS. 12 to 15, reference numeral 1 denotes a beam member of a truck. Wheels 2 are provided on the truck near the beam member 1, and the upper surface 1a of the beam member 1 and the side surface 1b thereof , each bracket 4 and 5 is fixed by welding to each core holding member 3 of the rotating electric machine for a vehicle (1), and is fixed by each mounting bolt 7.8, and the above-mentioned rotating electric machine for a vehicle (1)
1! A drive gear 10 is mounted on the rotating shaft Ia of il1mI via a joint 9, and meshes with a large gear 11 that is integral with the wheel 2.

On the other hand, as shown in FIGS. 14 and 15, the vehicle rotary machine has a stator 12 formed of a laminated core.
Each core holding cylinder body 13 is attached to both sides of the core holding cylinder body 13, and the mounting boards 4a, 5 of the above-mentioned respective brackets 4, 5 are attached to both core holding cylinder bodies 13.
a is fixed by welding along the stator 12, and bearings 16 are provided on both side plates 14 and 15 that are integral with both core holding cylinders 13, and each bearing 16 has a rotating shaft load a that is integral with the rotor 17. It is equipped with a shaft.

In addition, both iron core holding cylinders 1 at opposite heel positions of the bracket 5
3, a mounting board 18a of the auxiliary bracket 18 is fixed by welding.

In this way, the above-mentioned rotating electrical machine for a vehicle is mounted by abutting the brackets 4 and 5 fixed by welding to the beam part @1 of the truck, and fixing these with the respective mounting bolts 7.8. .

However, in the above-mentioned mounting device for the rotating electric machine for a vehicle, the mounting boards 4a and 5a of each bracket 4.5 are welded and fixed to the core holding cylinder 13 along the stator 12. Due to the difference in the cooling rate immediately after, residual stress is generated in the vicinity of the welded parts of the mounting boards 4a and 5a, and a phenomenon occurs in which the tensile stress appears to be smaller. In other words, the equation is tensile strength - (allowable stress of the structure) - (residual stress), and the residual stress increases as the weld thickness 18ffi increases during welding, and weld overlay to maintain tensile strength becomes counterproductive. There is a risk that

In order to remove such residual stress and maintain the necessary tensile strength, there is a method of annealing the welded product by placing it in a heating furnace at about 650°C.
As shown in FIG. 4, annealing cannot be performed because the organic coating paint applied to the surface of the stator 12 made of a laminated core to prevent eddy N flow will be burned out.

On the other hand, in order to remove the residual stress (residual strain) due to welding, it is possible to employ peening means, but it is difficult to effectively and appropriately remove the residual stress.

[Object of the Invention] The present invention has been made in view of the above-mentioned circumstances, and the present invention has been made in view of the above-mentioned circumstances. A rotating vehicle for the purpose of being installed in such a way that it does not cause stress, so that it can be installed smoothly during assembly and improve productivity.
ff machine.

[Summary of the invention]

Is the present invention suitable for vehicle rotation? ! In the stator of the machine, core retainers each having ears formed on both sides of the stator made of laminated cores are attached, and a mounting base plate that comes into contact with the beam member of the truck is attached to each ear of the both core retainers as described above. Each receiving plate is fixed along the laminated core and is integrally formed on both of the core holding cylinders near the both ears C, and each receiving plate is provided with a mounting leg base plate that abuts on the beam member of the truck. The structure is such that it is fixed along the laminated core and does not generate residual stress due to welding.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

It should be noted that the present invention will be described with the same reference numerals attached to the same constituent members as in the above-described specific example.

In FIGS. 1 to 4, reference numeral 1 denotes a beam member of a vehicle bogie, and a vehicle rotary mold 1111 is fixed to this beam member 1 with mounting bolts 7.8.

That is, on both sides of the stator 12 formed of the laminated core of the rotating electrical machine (1) for a vehicle, each core holding cylinder 20 having each ear piece 20a formed thereon is attached.
0, a mounting base plate 21 formed in a square cross section is fixed by welding along the laminated core 12, and this mounting base plate 21 is attached to the upper surface 1a of the beam portion JjA1. It is provided so as to be in contact with the.

Also, the both core holding cylinders 20 near the both ear pieces 20a
, each receiving plate 22 is integrally formed, and each receiving plate 22 has a mounting leg base plate 2 having a dogleg-shaped cross section.
3 is fixed by welding along the laminated iron core 12, and the mounting leg base plate 23 is provided so as to come into contact with the side surface 1b of the beam member 1. Furthermore, the mounting base plate 21 is attached to the upper surface 1a of the beam member 1 with mounting bolts 7, and the mounting leg base plate 23 is fixed to the side surface 1b of the beam member 1 with mounting bolts 8.

In particular, each lug 20a and each receiving plate 22 according to the present invention are integrally formed on each core holding cylinder 20 without welding, and each lug 20a and each receiving plate 22 are attached to a base plate. 21 and the mounting leg base plate 23 are fixed by welding, which prevents the generation of residual stress due to thermal stress due to welding compared to what has already been proposed, which reduces manual finishing work during assembly. The aim is to facilitate assembly and improve productivity.

In addition, both iron core holding cylinders 20 are located at approximately opposite positions of the receiving plate 22.
A mounting board 18a of the auxiliary bracket 18 is fixed to the mounting board 18a by welding.

Next, another embodiment of the present invention shown in FIG. It was formed by

On the other hand, another embodiment of the present invention shown in FIG.
Similar to the embodiment shown in the figure, due to the mounting position of the beam member 1 of the truck, only one ear piece 20a' is formed by slightly bending, and the mounting base plate 21 is thereby formed by welding. It is a fixed snake.

Next, in another embodiment of the present invention shown in FIG. 7, in order to improve the mounting strength of the mounting base plate 21, a single-shaped structure is formed integrally with the mounting base plate 21 and between both ear pieces 20a. A reinforcing member 24 is provided by welding, and ribs 24a of this reinforcing member 24
The mounting base plate 21 is arranged so as to come into contact with the mounting base plate 21.

On the other hand, in another embodiment of the present invention shown in FIGS. 8 and 9, in order to improve the mounting strength of the mounting base plate 21, each of the two ear pieces 20a that are integral with the mounting base plate 21 is A T-shaped reinforcing member 24 is attached to the base by passing through it, and is fixed by welding, so that the slot 724a of the reinforcing member 24 comes into contact with the mounting base plate 21.

Another embodiment of the present invention, roughly shown in FIG.
In order to improve the mounting strength of the mounting leg base plate 21,
A letter-shaped reinforcing member 24 is interposed and welded between the mounting leg base plate 23 and both receiving plates 22 that are integral with each other, and this reinforcing member 24
The rib 24a is joined to the one mounting leg base plate 23.

Finally, in another embodiment of the present invention shown in FIG. 11, similar to the embodiments shown in FIGS. 8 and 9, in order to improve the mounting strength of the mounting leg base plate 23, Base plate 2
A reinforcing member 25 is inserted through and attached to each base of both receiving plates 22, which are integral with the receiving plate 3, and the reinforcing members 25 are fixed by welding.

〔Effect of the invention〕

As described above, according to the present invention, in the stator of a rotating electric machine for a vehicle, each core holding cylinder 20 having each lug 20a formed on both sides of the stator 12 formed of a laminated core is attached, and both of the core holding cylinders 20 are attached. Attach the mounting base plate 21 that comes into contact with the beam member 1 of the truck to each lug 20a of the core holding cylinder 20 to the laminated core 1.
2, each receiving plate 22 is integrally formed on both core holding cylinders 20 near the both ear pieces 20a, and both receiving plates 22 are attached to abut against the beam member 1 of the truck. Since the leg base plate 23 is fixed along the laminated iron core 12,
Not only can the mounting base plate 21 and the mounting leg base plate 23 be provided without generating residual stress due to welding, but also the assembly can be facilitated, so productivity can be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the main parts of a rotary FFI machine for a vehicle according to the present invention, FIG. 2 is a side view of the same, FIG. 3 is a plan view of the same, and FIG. 4 is a bottom view of the same. Figures 5 to 11 are
Figures illustrating other embodiments of the present invention, FIG. 12 is a diagram showing a state in which an already proposed rotating electric machine for a vehicle is attached to a bogie of a vehicle, and FIG. 13 is a plan view of the same as above. Figure 14 shows ■
A cross-sectional view showing half of the vehicle rotary 71i machine proposed in
FIG. 15 shows the rotation ff1Bi for a vehicle that has already been proposed.
FIG. DESCRIPTION OF SYMBOLS 1... Beam member, 12... Stator, 20... Iron core holding cylinder, 20a... Ledge piece, 21... Mounting base plate, 22... Receiving plate, 23... Mounting leg base board. Applicant's agent Mr. Sato Figure 4 Figure 5 Figure 6 Figure 7 Figures 1 and 10

Claims (1)

[Claims] In the stator of a rotating electrical machine for a vehicle, core holding cylinders each having ears formed thereon are attached to both sides of the stator formed of a laminated iron core, and the respective ears of these core holding cylinders are attached to the beam members of the truck. An abutting mounting base plate is fixed along the laminated core, each receiving plate is integrally formed on both the core holding cylinders near the both ear pieces, and each receiving plate is attached to the beam member of the truck. A rotating electrical machine for a vehicle, characterized in that a mounting leg base plate that comes into contact with the laminated iron core is fixed along the mounting leg base plate.