SU534831A1

SU534831A1 - Winding device

Info

Publication number: SU534831A1
Application number: SU2153489A
Authority: SU
Inventors: Борис Львович Злотин; Александр Иванович Кузьмин
Priority date: 1975-07-09
Filing date: 1975-07-09
Publication date: 1976-11-05

Description

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Изобретение относитс к области электромашиностроени , преимущественно к производству крупных электрических машин.The invention relates to the field of electrical engineering, mainly to the production of large electric machines.

Известно устройство дл креплени обмоток в пазах электрической машины посредством клиньев, имеющих посто нное сечение по всей длине 1.Такие клинь просты в изготовлении, однако надежность такого креплени недостаточна, так как в процессе эксплуатации давление клина на обмо ку, создаваемое за счет упругих свойств изол ции, снижаетс .A device is known for fastening the windings in the grooves of an electric machine by means of wedges having a constant cross-section along the entire length. 1. Such wedges are simple to manufacture, but the reliability of such fastening is not sufficient, since during operation the pressure of the wedge on the winding created by the elastic properties of the insulation is reduced.

Известно также устройство дл креплени обмотки статора встречными пазовыми клинь ми с фиксаторами в торцах пазовIt is also known a device for fastening a stator winding by opposing slot wedges with retainers at the ends of the grooves.

электрической машины 2.electric car 2.

Такие устройства недостаточно надежны так как в процессе эксплуатации электрической машины может происходить усадка изол5щии, котооа вызывает ослабление креплени обмотки в пазы и способствует по влению вибрации- Увеличить усилие заклинивани обмотки при использовании такого устройства невозможно при полной разборке машины,Such devices are not reliable enough because during the operation of an electric machine, shrinkage of the insulation can occur, which weakens the windings in the grooves and contributes to vibration. It is impossible to increase the jamming force of the windings when using such a device.

Цель изобретени - повышение надежности и обеспечение возможности подпрессовки обмотки при экспггуатации без полной разборки машины.The purpose of the invention is to increase the reliability and ensure the possibility of pressing the winding during the expulsion without complete disassembly of the machine.

ПостсШленна цель достигаетс тем, что фиксаторы встречно направленных клиньев выполнены в виде размещепг;ых Е ввытил цио1шых радиальных каналах И-сюразных элементов и упирающтгхс в торцы крайних клиньев винтов. РезьбоБое отверстие, сочлененное с резьбой винта, может быть расположено в П-образном элементе или в крайнем клине, причем в последнем случае между П-образным элементом и винтом может быть расположен упругий элемент , например пружшгна шайба.The goal of the goal is achieved by the fact that the locks of the oppositely directed wedges are made in the form of a housing; the E has been inserted into the cyto radial channels of the I-syrazny elements and abutted against the ends of the extreme wedges of the screws. A threaded hole articulated with a screw thread may be located in the U-shaped element or in the outer wedge, and in the latter case, an elastic element, such as a spring washer, may be located between the U-shaped element and the screw.

Claims

Fig, 1 shows the groove of an electric machine with a threaded connection located in the U-shaped element, in longitudinal section; FIG. 2 shows a groove with a threaded connection located in the outer wedge and a spring washer between the screw and the U-shaped element in a longitudinal section. The winding 1, located in the groove of the active steel 2 of the electric machine, is fastened with the aid of counter wedges 3, an axial force is transmitted to KOTopiMe from the end wedge 4, created by a screw 5 screwed into a U-shaped element 6 or into a wedge 4. Between screw 5 and II In the form of an element 6, an elastic element 7 can be placed. When the mask is in operation, the axial force generated by the screw 5 abutting the P-shaped element 6, located in the ventilation gap of active steel 2, is transmitted through the extreme wedge 4 to the counter wedges 3, which due to the bevelled In the presence of an alsial force, the grids are guided into the winding and the inside of the tail of the groove, thereby creating an additional pressing force on the winding. The proposed device provides the possibility of wedging the winding without complete disassembly of the machine and reliably captures the slot wedges from moving in the axial direction. Claim 1, A device for fastening a winding in a magnetic machine of an electrical machine, between packages of which there are radial ventilation channels, containing counter-directed wedges fixed from axial displacement using retainers installed at the ends of the grooves, characterized in that, in order to increase reliability and enabling the winding to be pre-pressed during operation without complete disassembly of the machine; the latches are made in the form of U-shaped elements placed in the ventilation ducts and abutting ihs in the ends of the extreme wedges of the screws. 2. The device according to claim 1, distinguishing it with the fact that the U-shaped element has a threaded hole articulated with a screw thread. 3. The device according to claim 1, characterized in that the outer wedge has a threaded hole articulated with a screw thread. 4. The device according to claim 3, characterized by the fact that between each U-shaped element and the screw there is an elastic element, for example a spring shay-ba. Sources of information J taken into account in the examination: 1. Book Alekseeva Structuring electrical machines, 1938, p. 109, fig. 3-4.

2. Patent CUJA number 3139550 cl. 310-214 from 1964 (prototype).

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