DEB0023618MA - - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

Registration date: January 2, 1953. Advertised on June 7, 1956

GERMAN PATENT OFFICE

Electric motors are already known in which the rotor bearings, the stator and the rest have to be assembled Parts centered and fastened in circular plates of the same outer diameter are. In these known motors, however, special bearing plates for fastening the plates are on the housing base plate is provided. Screws are arranged to connect the corresponding parts. Spacers are also needed to make the circular plates the required Have a distance from each other. In addition, you also have the against stops in the motor housing imported circular plates supporting the bearings etc. with spacers in between, Coil springs and the like arranged. A cover provided with an external thread serves to hold it together of the mentioned parts. He is in a corresponding internal thread of the housing in the required dimensions.

According to the invention, these relatively cumbersome manufacturing processes are intended to thereby be simplified that after centering and securing the individual parts in the mentioned circular plates insert the plates

609 529/230

Claims (1)

B 23618 VHIbI'2Id * ben of arranged on its outer circumference radial tongues in slots forming the housing rolled cylindrical sleeve axially and - radially aligned and by bracing the Bushing to be fastened against the inner circumference. . That simple way you get a sufficient one firm hold of the combined engine parts and, furthermore, sufficient spacing, without the need for special spacers. An embodiment of the invention is shown in the drawing. It shows Fig. Ι a longitudinal section through an engine according to of the invention and Figure 2 is a front view of a cylindrical sleeve in which the parts of the engine to be assembled can be mounted.
• The motor according to the invention consists of a rotor 1 and the stator 2. The stator 2 is mounted on circular plates 3 and 4, for example by means of. Rivets or in some other way, centered with respect to the outer periphery of the circular plates 3 and 4. These rivets can e.g. B. take place with a suitable device, whereby the centering, as said, is guaranteed. In addition to the circular plates 3 and 4, there are corresponding ones in the illustrated embodiment circular plates 5 and 6 applied. The shaft 7 of the rotor 1 is on the one hand ge ^ stored in the bearing 8, which is housed in the bearing housing 9, by means of rivets or is attached to the plate 10 in another way. the Plate 10 is attached to plate 6 by spacing members 11, e.g. B. using rivets 12 or other fastening means known per se. Attaching the bearing housing 9 to the Plate 10 and the plate 10 on the plate 6 happens centered with respect to the outer periphery of the circular plate 6, so that the connecting parts 11 and the bearing housing 9 with regard to the outer circumference of the plate 6 are centered. On the shaft 7 a sleeve 13 is provided to which a fan 15 can be attached, namely between the collar or the bead 14 and the bearing housing 9. Between the plates 6 and 10, guide vanes 16 are provided while the fan 17 is mounted on the shaft 7 in a manner known per se; this is done with help the glasses 18, the washer 19 and the nut 20. The shaft 7 carries a collector 21 near the other end, while the shaft end is mounted in the ball bearing 22; this is housed in the bearing housing 23. The bearing housing 55-23 is in the manner explained, e.g. B. by centered riveting, attached to the plate 5. The plates 5, 4, 3 and 6 have lips on their circumference, which are "indicated by 25 and into the slots 26 of the rolled sleeve 27 are inserted. Since the sleeve 27, as already mentioned above, at least three, but generally containing a large number of parallel ribs, come on the plates 5, 4, 3 and 6 fastened parts mutually for centering. The panels can be punched like that that their uniformity, at least as far as the outer circumference is concerned, is guaranteed. On the Plate 5 is mounted a plate 24 of insulated material; on the plate 24 are the connecting parts arranged. The rolled sleeve 27, which is initially open, has beaded edges on the longitudinal delimiting edges Parts 28 and 29 (see Fig. 2); by a conical strip 30 with beaded edge parts the flange parts 28 and 29 can be pulled together. The flange parts 28 and 29 have in this Case a corresponding sloping course. A bracket 32, which is a fastening element for the brush holder, is riveted to the insulating plate 24 31 forms. An elastic member 33 is attached to the bracket 32, which has an excellent Part 35 owns. In this way, the brush holder is very easy to remove, and it can replace a worn carbon brush with a new one without any significant difficulty will. ' On the brush holder 32 a cam 36 is pressed, which with a recess in the bracket 32 cooperates so that the brush holder 31 cannot rotate when it is mounted. Pat ε ntansp ru c η: Method for manufacturing an electric motor, in which the Rötorlager, the stator and the remaining parts to be assembled in circular plates of the same outer diameter are centered and fastened, characterized in that after centering and fastening the individual parts in the plates (3, 4, 5 and 6) the plates by pushing on their Radial tongues (25) arranged on the outer circumference in slots of a rolled cylindrical Bushing (27) aligned axially and radially, and by bracing the bushing against the inner circumference be attached. , Referred publications:
German Patent Nos. 662 095, 605 853, 602 094, 542 272; French patent specification No. 918 829. 1 sheet of drawings