SU91050A1 - Arch Type Collector for Electric Machines - Google Patents

Description

The subject of the invention is an arch type collector for electric machines with plastic insulation of the lamellae from each other and from the tight metal sleeve.

It is known to manufacture collectors with continuous plastic insulation by molding copper lamellae into plastic; however, in the case of using mechanically weak plastics, due to their high viscosity it was not possible to ensure uniform filling of interlaminate gaps with plastic, and in the case of using plastics with good fluidity, it was not necessary mechanical strength of collectors.

The purpose of the present invention is to obtain reservoirs with plastic insulation, possessing the necessary mechanical strength at high dielectric properties and plastic interlabel insulation.

In the described collector, pressure conical rings preformed from mechanically strong reinforced metal scrap, plastics and coated on the outside with an electrically insulating lacquer are applied, and an electrically operated thermoplastic mass is introduced into the interlaminar space by injection molding, after tightening the collector , irichem to ensure a uniform gap between the lamellae, the indicated conical rings are sabzheni with sockets fixing the end parts of the dovetail tails lamellae y.

FIG. 1 schematically depicted: its collector in longitudinal section; in fig. 2-ir device for collector assembly.

The collector consists of a corresponding part of the copper lamellae 1, sandwiched between two plastic conical pressure rings 2 and 3 with a nominal strip of metal sleeve 4.

The space between adjacent lamellae and between lamellae and the collapsing sleeve is filled with a thermoplastic electrical insulating material with a mass of 5.

No. 91050-2 -

 When assembling the collector, plastic pressure conical rings 2 are attached to a device consisting of a metal hollow cylinder 6, a lower punch 7 and disconnecting sliding metal plates 8, the number and thickness of which correspond to the number of copper lamellae and the gap between them. Edge lamellae 1. After that, the pressure rings 3 are fitted. And the rings are located so that the mounts of the dovetail tails of the lamellae enter the fixing slots on the conical surfaces of the rings. Then, pressure is applied to buffer 9 and the collector is tightened by expanding the ends of sleeve 4 with helper pans 7-n: 1.0 ... Schroeder, ss, zololnen, and .., interlaminar space of thermoplastic electrical resistivity 4viacc6fl; the method of pouring under pressure, in multi-part molds, with the necessary shutter speed of collectors under pressure & m Do; bkopchani plastic polymerization process. Subject invention

1. An arched collector for electric machines with plastic insulation of the lamellae from each other and from a straining metal sleeve, characterized in that, in order to increase the mechanical ripo4HOCTn and facilitate the filling of the interlaminar space with insulating material in it, three-dimensional pressure conical rings in advance molded from mechanically strong metal-reinforced plastics, and an electrically strong thermoplastic mass is used as interlame insulation, introduced into the interlaminar space by the casting method Under pressure after tightening the collector.

2. Collector, lo. Sec. 1,. of, and h, and with, which, in order to ensure a uniform gap, a gap between the wafer plates, the indicated conical rings are provided with slots that fitks. parts of the swallows, I; Hb1h hvrstov lamellae, and cover the outside with a bakelito lakom.m: To increase their electrical strength.

Zh

 YU

FIG

FIG. 2