Prioritet begard friin den 18 mars 1957 (Schweiz) Forebggande uppfinning hanfor ,sig till en anordning for fasthallning av lindningshuvuden vid rotorer for elektriska maskiner.
Priority was given on March 18, 1957 (Switzerland). The present invention relates to a device for holding winding heads to rotors for electrical machines.
Dylika lindningshuvuden maste sakras gentenaot de massaeeelerations- rasp. retardationskrafter, Vilka uppsta vid plotsliga hastlghetsandringar hos rotorn. I allmanhet erbjuder det tryek, medelst -vilket lindningshuvudena under medverkan av bandage lianas pressade mot den eylindriska lindningsstodytan, ti11rak1ig sakerhet gentemot tangentiell forskjiutning av lindningen. Vid sarskilt snabbgaende maskiner med i hog grad utskjutande lindning formar emellertid .denna endast pa friktion grundade fasthallning av lindningshu-vudena ej hingre att med tillracklig sakerhet forhindra forskjntning av Enduing-en, speeiellt ieke ,nar under drift plotsliga hastighetsandringar upptrada ,ofta eller i hada rotationsriktningarna. Andamalet med uppfinningen ar att mOjliggOra en stel fasthallning av lindningshuvudena. Such winding heads must be sacred to the mass acceleration rasp. deceleration forces, which arise in the event of sudden changes in the speed of the rotor. In general, the pressure by which the winding heads, with the aid of bandages, are pressed against the cylindrical winding support surface offers considerable certainty against tangential displacement of the winding. However, in the case of particularly high-speed machines with highly projecting winding, this friction-only holding of the winding heads does not, with sufficient certainty, prevent the deformation of the Enduing, in particular when sudden velocity changes occur during operation, often or in danger. the directions of rotation. The object of the invention is to enable a rigid holding of the winding heads.
Detta liar enligt uppfinningens huvudsaktiga kanneteeken ernatts m.ed hjalp av en pa rotorns axel 'fastkilad skiva med spar, i vilka de skilda lindningshuvudena aro inbaddade utan spel. According to the main features of the invention, this is achieved by means of a disc wedged on the shaft of the rotor with grooves, in which the various winding heads are embedded without play.
En tandad skiva 6 (fig. 1-3) fir paskjuten en axel 10 och fastkilad vid denna. I spar 11 5.ro ,de olika lindningshuvudena 7 inhaddade utan spel, yilket kan (appals ,genom kilning medelst kilar 9. Dar sa Or m.5jligt, kan man noja sig med ett spar for vartannat (fig. 4) eller for vart tredje (fig. 5) lindningslmvad, varvid de ovriga lindningshuvudena 8 fastkilas tangentiellt relatiyt de i sparen belagna. A toothed disc 6 (Figs. 1-3) fits the shaft 10 and is wedged thereto. In spar 11 5.ro, the various winding heads 7 held without play, which can (appals, by wedging by means of wedges 9. Dar said Or m.5jligt, one can settle for a spar for every other (fig. 4) or for each third (Fig. 5) winding wound, the other winding heads 8 being wedged tangentially relative to those covered in the spares.