SU989683A1

SU989683A1 - Electric machine magnetic core

Info

Publication number: SU989683A1
Application number: SU802990467A
Authority: SU
Inventors: Борис Петрович Леонов
Original assignee: Предприятие П/Я В-8624
Priority date: 1980-10-08
Filing date: 1980-10-08
Publication date: 1983-01-15

Description

Изобретение относитс к электротехнике и. предназначено дл изготовлени электрических мштшн.The invention relates to electrical engineering and. intended for the manufacture of electrical units.

Известны пакеты сердечников микромашин , собранные по вееру, в которых отдельные пластины технологические метки, например выступы, выполненные по периферии пластин с угловым смещением относительно зубцового шага на величину,, обеспечивающую заданный скос паза при сборке пакета на оправку со смещением каждой пластины на заданное количество технологических меток, которые необходимо считать дл получени определенного смевдени пластин 1. Наиболее близким к предложенному по технической сущности и достигаемому результату вл етс магнитопровод , шихтованный из пйастин с равномерно распределенными по периферии технологическими пазами, число которых не имеет общих мнржителей с числом пазов магнитопровода со стороны воздушного зазора. Дл обеспечени скоса пазов пластины последовательно смещены друг относительно друга на угол t23.There are packages of cores of micromachines assembled along a fan in which individual plates have technological marks, for example, protrusions made along the periphery of the plates with an angular displacement relative to the tooth pitch by a value that provides a given groove of the groove when assembling the packet onto the mandrel with the offset of each plate by a given number of technological tags that must be considered to get a certain match of the plates 1. The closest to the proposed technical essence and the achieved result is magnetic core, made of pyastin with technological slots uniformly distributed along the periphery, the number of which has no common factors with the number of magnetic core slots from the air gap side. To ensure the grooves of the grooves, the plates are successively shifted relative to each other by an angle t23.

В св зи с тем, что технологические пазы обычно имеют малые геометрические размеры и при сборке пакета каждый последующий лист требуетс разворачивать на значительное, строго определенное число технологических пазов, KOTOpqe определ етс только визуально, то сборка пакета св зана с большими практическими трудност ми , которые нередко привод т к неточному развороту пластин, т.е. к недо10 пустимому ухуддаению качества изготавливаемых магнитопроводов,Due to the fact that the technological grooves usually have small geometrical dimensions and when assembling the package each subsequent sheet is required to be deployed to a significant, well-defined number of technological grooves, KOTOpqe is determined only visually, the assembly of the package is associated with great practical difficulties quite often they lead to inaccurate reversal of the plates, i.e. to an unacceptable deterioration in the quality of the manufactured magnetic circuits,

Цель изобретени - повышение качества изготавливаемых магнитопроводов электрических машин при одновре15 . менном увеличении производительности сборки магнитопрозодов.- The purpose of the invention is to improve the quality of the manufactured magnetic circuits of electric machines at the same time. to increase the performance of the magnetic flux assembly.-

Поставленна цель достигаетс тем, что в предлагаемом магиитопроводе кажда пластина выполнена с двум The goal is achieved by the fact that, in the proposed magic line, each plate is made with two

20 фиксированными технсмюшческикв метКс1ми , которые смещены друг относи- , тельно друга . на угловой шаг разворота каждой последукидей пластины, и в магнитопроводе перйа фиксирован25 на технологическа метка каждой последуи цей пластины совмещена с второй фиксированной технологической меткой предыдуо й пластины.20 fixed technical instruments of metxcladi that are displaced relative to each other. on the angular pitch of each turn of the plate, and in the magnetic core, the pin is fixed25 on the technological label of each subsequent plate is aligned with the second fixed technological mark of the previous plate.

Claims

Figures 1, 2 and 3 show the production and the relative position of the sheets in the proposed magnetic circuit of the electric machine. An exceeded magnetic circuit of an electrical machine consists of separate plates 1 (notches), the number of which K is determined by a predetermined trillion thickness of the magnetic circuit. An example of the configuration of the stator plate is presented in cher, tezhe. On the inner circumference of the plate there are working teeth 2 in the number Z. On the outer circumferential plate there are technological marks 3 and 4 (teeth) whose number Zp is equal to the number of plates. Two technological marks 3 and 4 are fixed, for example, using holes 5, Technological marks 3 and 4 are offset relative to each other by an angle d p, which is equal to the angular, offset when assembling the magnetic circuit of each subsequent plate relative to the previous one. This angle, measured by the number of technological tooth divisions, is determined by the equality K, the fractional part where K is the number of magnetic core plates; Z is the number of working teeth of the plate; ZY - the number of technological teeth of the plate; n is the angular displacement of each subsequent plate relative to the previous one; ot is the bevel angle of the magnetic circuit teeth. When assembling the magnetic core, the first plate is mounted on the mandrel of the assembly tool in an arbitrary position (see Fig. 1). The second plate is mounted on the mandrel of the assembly tool so that the fixed mark 3 of this plate is aligned with the fixed mark 4 of the first plate, fixed on the mark 3 of the third plate is aligned with the fixed mark 4 of the second plate. Similarly, the remaining plates are located - mag nitopr water. In the last plate of the magnetic circuit, the fixed mark 3 is aligned with the fixed mark 4 of the penultimate plate, and its mark 4 is located on one forming cylindrical surface of the magnetic circuit with mark 3 of the first plate. Fixation wells are made so that at least one of them is located not symmetrically relative to the technological tag. This eliminates the possibility of turning the plates on when assembling the magnetic circuit. Fixation wells of each sheet can have a different configuration (for example, round and square), or can be applied with an offset on the technology labels. This facilitates the recognition of these labels when assembling the magnetic circuit. The proposed magnetic circuit of an electric machine is characterized by an increased assembly accuracy, since each subsequent plate is shifted by the same angle, equal to the mutual arrangement of two technological labels with fixation holes. As a result, there is no need for a visual determination (counting) and a visual fixation of the technological tag, which is to be connected to the fixture of the assembly tool, and the productivity of the magnetic core assembly increases. When assembling a magnetic circuit on a device with a number of latches, equal to the number of plates of the magnetic circuit, each sheet can have only two technological marks (a tooth or a groove). Due to this, the labor intensity of making a stamp for cutting sheets is reduced. The invention The magnetic circuit of an electric machine of laminated plates, sequentially offset from each other by an angle from. characterized in that, in order to increase productivity and build quality, each plate is made with two fixed process marks located at a distance of the above angle, and in the magnetic core the first fixed process mark of each subsequent plate is aligned with the second fixed mark of the previous plate. Sources of information taken into account in the examination 1. The author's certificate of the USSR. № 265241, cl. H 02 K 15/02, 1964.

2. Authors certificate of the USSR 836724, cl. H 02 K 15/02, 1979. ..