Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1989-04-04
1990-05-01
Levy, Stuart S.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 711, 29598, 29736, H02K 1509, H02K 1502
Patent
active
049211781
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a machine of the kind set forth in the preamble of claim 1 and intended for winding a rotor for a rotating electrical machine.
The Swedish Patent Specifications 191 365 and 191 366 teach such a machine and also a method for winding a rotor for a rotating electrical machine. The rotor comprises a cylindrical rotor core which has provided circumferentially around the outer peripheral surface thereof a plurality of axially extending and uniformly spaced winding slots, and which shall be provided with a winding that comprises the same number of coils as there are slots each of these coils being placed into two mutually different winding slots. The machine and methods described in these patent specifications, however, cannot be readily applied when wishing to wind rotors which have an odd number of winding slots. Furthermore, the known machine can only be used for winding relatively thin wire that has a diameter smaller than ca 0.5 mm. This known machine has a relatively complicated construction and the use of the machine is also highly complicated and time consuming.
The object of the present invention is to provide an improved winding machine of the aforesaid kind which can be used to wind rotors having an even number of winding slots as well as rotors having an odd number of winding grooves, and which can also be used to wind higher gauge wires, e.g. wires having a diameter of up to at least ca 5 mm. A further object is to provide such a winding machine which is of simple construction, which can be used easily and with which a rotor can be wound in a much shorter time than was previously possible.
These objects are achieved with a rotor winding machine of the aforesaid kind that has the characteristic features set forth in the following claims.
The invention will now be described in more detail with reference to an exemplifying embodiment of the inventive winding machine and with reference to the accompanying schematic drawings, in which
FIG. 1 is a front view of the machine;
FIG. 2 is a side view of the machine;
FIG. 3 is a front view, partly in axial section, of a part of the machine in larger scale;
FIG. 4 is a plan view of a wire guide ring forming part of the machine;
FIG. 5 is a sectional view of the guide ring shown in FIG. 4, taken on the line V--V in said Figure;
FIG. 6 is a part view in larger scale, illustrating that part of the guide ring which lies in the chain-circle VI in FIG. 4;
FIG. 7 is an enlarged sectional view of the guide ring illustrated in FIG. 4;
FIG. 8 is a sectional view taken on line VIII--VIII in FIG. 7;
FIG. 9 is a side view, partly in axial section, of a guide sleeve forming part of the machine; and
FIG. 10 is an end view of the guide sleeve illustrated in FIG. 9.
As will be seen from FIGS. 1 and 2, the illustrated exemplifying embodiment of a machine constructed in accordance with the invention includes a stand, generally referenced 1, in which two winding devices, generally referenced 2 and 3 respectively, are mounted. The two winding devices 2, 3 are mutually identical and are placed in mirror-image symmetry, co-axially opposite one another. The lower winding device 3 is carried by a frame 4 which is hinged at its lower end to the stand 1, such as to enable the frame to be swung between the vertical position illustrated in FIGS. 1, 2 and a position in which the frame is slightly inclined to the right in FIG. 2, by means of a piston-cylinder device 5. The upper winding device is mounted in an associated frame 6 which can be moved vertically between the raised position illustrated in FIGS. 1, 2 and a lowered position in which the bottom surface of the upper winding device 2 lies against the upper surface of the lower winding device 3, this vertical movement of the upper frame being effected with the aid of guides and rollers 7 and a further piston-cylinder device 8. The lower frame 4 also carries a shaft headstock or support means 9 (see also FIG. 3) which has a rotatable end 9a and which can be moved axially by means of a hydraulic piston-cyli
REFERENCES:
patent: 2561562 (1951-07-01), Collins
patent: 2883119 (1959-04-01), Braun
patent: 3163921 (1965-01-01), Applegate
Enhardt Josef E.
Holm Roland
Battista, Jr. William G.
Garphyttan Industrier AB
Levy Stuart S.
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