SU1327239A1 - Method of manufacturing electrical machine - Google Patents

Abstract

The invention relates to electrical engineering. The purpose of the invention is to increase the reliability and reduce the complexity of manufacturing. A device allowing this method to be implemented comprises a stator housing 1, shields 2 and 3, magnetic circuits 4 and 5 of the stator and rotor, respectively, bearing assemblies 6 and 7. The diameters of the hubs of the shields 2 and 3 and the magnetic core 4 are stepwise filled. The assembly of the electric machine is carried out from two independently assembled units by inserting the rotor into the hole of the magnetic joint venture with the

Description

stator wires are seated on bearing units in the hubs of shields 2 and 3. This will increase stability. The invention relates to electrical engineering, and more specifically to a method of assembling electrical machines.

The purpose of the invention is to increase the reliability and reduce the labor intensity of production.

Figure 1 shows the electrical machine, a general view; figure 2 - the node of the stator housing with shields; on fig.Z - rotor unit of the electric machine; 4 is an electrical machine.

The electric machine (Fig. 1) includes a stator housing 1, shields 2 and 3, a magnetic core of the stator 4, a magnetic conductor of the rotor 5, bearing assemblies 6, 7 and rings 8 and 9 mounted on the shaft 10. Diameters of the hubs of the shields .2, 3 and the magnetic circuit 4 is made stepped. The diameter D of the hub of the shield 2 is larger than the diameter E of the magnetic core 5 by a minimum amount sufficient for the passage of the bearing assembly 7 and the rotor 5. The bearing assembly 7 has an outer diameter smaller than the internal diameter of the magnetic core 4. The hole of the stator magnetic circuit and the diameter of the rotor magnetic core form a predetermined clearance, fixing and The fastening of the bearing assemblies 6 and 7 of the rotor is carried out along connecting surfaces 11 and 12, located in the shield 2 on the outer side, in the shield of the 3rd inner side. The rotor is mounted in the housing with screws 13 and 14. N ;. Lig.2 shows the assembly of the finally assembled housing of the electric machine. The diameter D of the hub of the shield 2 is larger than the diameter of the hole in the magnetic circuit 4 and larger, the diameter of the hub of the shield 34. The purpose of the blunt holes in the hubs of the EP gov and the stator magnetic conductor and connecting surfaces (.az 11 and 12 in one direction along the axis of the body allows processing of seats in shields and from

technical characteristics due to increased accuracy in the manufacture and assembly of electrical machines. A Il.

0 5

five

versts of the stator magnetic circuit assembled from one installation and thereby significantly increase the coaxiality of the mating nodes.

Fig. 3 shows the assembly of the final assembled rotor of the electric machine. The connecting surfaces 15 and 16 of the bearing devices are located in one direction along the axis of the rotor, in the bearing assembly 7 from the outside, in the bearing assembly 6 from the inside of the rotor.

The final assembly of the electric machine (FIG. 1) from two independently assembled assemblies, shown in FIGS. 2 and 3, is carried out by inserting the rotor (FIG. 3) into the opening of the stator magnetic circuit 4 (FIG. 2) with bearing seats in the shield hubs 2 and 3 of the stator housing, compression and fastening of the rotor in the housing of the electric machine is carried out by screws 13 and 14 of bearing assemblies.

Figure 4 shows an electrical machine, the case of which on one end has an annular radial protrusion 17 with an inner diameter A, which is the outer diameter E of the rotor magnet 5. The diameters of the hub of the shield 3 and of the magnetic core 4 are stepwise. The fixing and fastening of the bearing unit 6 is carried out on the connecting surface 18 located on the outer side of the annular protrusion 17.

The proposed invention makes it possible to realize the technological capabilities of understanding the accuracy of the coaxiality of machining the hull, the electrical Manmtbi on the technological equipment of medium accuracy; allows you to improve the organization and rhythm of production of electric majin due to the possibility of their manufacture and assembly with two: x independently assembled and controlled units:

electric machine and rotor; reduces the laboriousness of assembling the machine by eliminating the re-dividing of the shields during the dismantling of the rotor during the final adjustment, revision, replacement of bearings and repair; allows to increase the stability of the technical characteristics of the resource of electric machines due to the increased accuracy of manufacture and assembly of electric machines.

Claims (1)

Invention Formula A method of manufacturing an electric machine comprising at least that, in order to increase the reliability of labor-intensive manufacture, the hull is assembled at least one shield, including the assembly of the rotor with bearing assemblies, the insertion of the rotor into the bore of the stator, the mounting of the bearing assemblies, characterized in that With one shield in a single unit, all pbs-mounting surfaces for both bearing assemblies and magnetic bore stator are made together, then the assembled rotor with bearing assemblies is inserted into the stator spacing, then the bearing assemblies are fastened. Xxxu / y / 7x // x x / / / / / / / / / And 11 || (rig, 3 5 If fie, 4 Editor A.Dolinich Compiled by F. Podolska Tehred V.Kadar Proofreader A.Zimokosov Order 3405/52 Circulation 659 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5. Production and printing company, Uzhgorod, st. Project, 4