Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H51/00—Forwarding filamentary material
  • B65H51/14—Aprons, endless belts, lattices, or like driven elements

Definitions

• the present invention relates to a device of the type specified in the preamble of claim 1 for feeding elongated goods such as cables, hoses and the like and comprising feeding means arranged in pairs for grasping abutment against the goods to be fed.
• Examples of known strand feeding devices are disclosed in US-1 904 885 and US-2 251 291.
• the known devices have a pair of conveyor belts as feeding means.
• the belts have carriers abutting against the strands as they pass between the conveyor belts.
• the device according to the present invention includes the specific fetures specified in the characterizing portion of claim 1.
• the conveyor belts thus present as carriers two longitudinal rows of holders on either side of the longitudinal axis of the respective conveyor belt.
• the holders support carrier means for abutment against the goods to be fed.
• Each carrier means is formed as a cylindrical roller, the longitudinal axis of which is parallel to the longitudinal axis of the conveyor belt and the mantle surface of which is covered with a material having a high friction coefficient.
• the carriers are arranged in pairs in the longitudinal direction of the conveyor belt on either side of the longitudinal axis of the belt.
• Each holder is preferably formed as a U-shaped clamp, the basis of which is fixedly mounted on the conveyor belt and the protruding legs of which carry the cylindrical roller, so that this is rotatable transversely to the feeding direction of the conveyor belt.
• the conveyor belts which can be comprised of roller chains, conveyor chains or belts, define an endless closed belt passing around a respective deflecting roller at the ends of the feeding device, the deflecting rollers being mounted in a support which is common to the conveyor belts and comprises driving means for at least one of the deflecting rollers for each conveyor belt.
• the present invention further relates to a cable feeder comprising a feeding device of the above mentioned kind and intended for feeding a cable when winding a stator for electric machines.
• the device and the cable feeder are, especially but not exclusively, intended to be applied when mounting high- voltage cable, on a generator where high-voltage cable is used in the windings of the stator, the cable lacking the outer protective cover normally surrounding such cable.
• the cable laying has to be carried out with a "dead” cable, i.e. no torsional twisting at all or only very little torsional twisting of the cable is allowed when it is inserted in the stator slot.
• a "dead” cable i.e. no torsional twisting at all or only very little torsional twisting of the cable is allowed when it is inserted in the stator slot.
• the invented device is advantages when used for an rotating electric machine of the type disclosed in WO-97/45919
• the cable is preferably of the kind consisting of an inner core with a plurality of wires, an inner semicon- ductive layer surrounding the core, an insulating layer surrounding the inner semiconductive layer and an outer semiconductive layer surrounding the insulating layer, preferably of a diameter of about 20 to 200 mm and a conductor area ranging from 80 to 3000 mm 2 .
• FIG. 1 is a schematic view of equipment for mounting a cable in the stator slots of the stator for an electric generator, which equipment comprises a feeding device according to the invention
• Fig. 2 is a side view of the feeding device according to the invention, however, without the associated support, and
• Fig. 3 is a section A-A through the feeding device in Fig. 2.
• equipment such as the one shown in Fig. 1 is used.
• Said equipment comprises a winding machine 2 and two intermediate storage means 3, 4 by means of which the cable K to be mounted in the stator S is distributed to cable feeders A and B.
• the cable feeder A is supported by a fork lift truck 1, which is movable on a floor surface recessed under the stator S, and the cable feeder B is suspended in a traverse or telpher 5 above the stator S.
• Each of the cable feeders A and B includes a feeding device F according to the present invention for feeding a cable K towards, into and through the slots present in the stator S.
• a feeding device F for feeding a cable K towards, into and through the slots present in the stator S.
• B presents guide rollers 6, so that the cable K is given a suitable bending radius .
• FIG. 2 A preferred embodiment of the feeding device F according to the present invention is shown in more detail in Figs. 2 and 3.
• the feeding device F is shown from the side and without the support 12, which is, however, illustrated in the sectional view A-A of the feeding device F shown in Fig. 3.
• the feeding device F comprises two mutually facing conveyor belts 10, 11 assembled in a common support 12.
• the device is provided with a suitable driving machine 13 with associated control equipment 14. It is intended for the feeding of cable-shaped goods, especially in applications where the cable K has been subject to twisting n the longitudinal direction.
• the feeding device is characterized by a high friction coefficient in the direction of feed P, in order to achieve a firm grip and reliable feeding of the cable K.
• the friction coefficient Transversely to the direction of feed P the friction coefficient is low and may be considered negligible. With negligible friction transversely to the direction of feed, any twisting of the cable K in the longitudinal direction may be released.
• the direction of feed is optional, to the left or to the right as indicated by the arrows P in Fig. 2.
• the conveyor belts 10, 11 are driven by the driving machine 13 via driving means not shown, which activate a respective deflecting roller 19, 20 over which the respective conveyor belt runs.
• the conveyor belts 10, 11 are end- less and at the opposite end to the deflecting rollers 19, 20 are bent around another respective deflecting roller 21, 22.
• the conveyor belts 10, 11, which can be comprised of roller chains, conveyor chains or belts, are provided with affixed carriers 15. At the carriers 15 there are mounted rollers 16 having a surface of rubber or similar material with a high friction coefficient.
• the rollers 16 are provided with hubs 17, preferably consisting of brass tubes.
• the rollers 16 are vulcanized or glued onto said hubs 17.
• shafts 18 extend, which are fixedly mounted in a carrier 15 at each end of the shaft.
• the shafts 18 are parallel to the direction of feed P, making the rollers 16 rotatable transversely to the direction of feed P.
• each carrier 15 in this embodiment comprises a U-shaped clamp, the basis 23 of which is mounted on the upper surface of the conveyor belt 11 and the protruding legs 24 of which carry the cylindrical roller 16 located between said legs in the above described way. The same conditions apply at the conveyor belt 10.
• the cylindrical rollers 16 thus mounted on the conveyor belt 10, 11 are arranged in pairs on either side of the centre line L of the conveyor belt 10, 11 running in the longitudinal direction.
• the shafts 18 of the rollers 16 are parallel to the longitudinal direction of the conveyor belts 10, 11. During feeding of a cable K, said cable is inserted between the conveyor belts 10, 11 into abutment against the rollers 16 present there.
• the feeding device has been described in conjunction with a preferred embodiment illustrated in the drawings, it will be obvious to a person skilled in the art that the feeding device may be modified in various ways without departing from the principle of the invention.
• the carriers 15 may be formed differently from the U-shaped clamp shown.
• the conveyor belts 10, 11 may be supported by one or several support rollers located between the deflecting rollers 19,

Landscapes

• Forwarding And Storing Of Filamentary Material (AREA)
• Structure Of Belt Conveyors (AREA)
• Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
• Vending Machines For Individual Products (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=20405654

Family Applications (1)

Country Status (9)

Families Citing this family (1)

Family Cites Families (4)

• 1997
  • 1997-02-03 SE SE9700365A patent/SE508516C2/sv not_active IP Right Cessation
• 1998
  • 1998-02-02 RU RU99119317A patent/RU2176216C2/ru active
  • 1998-02-02 WO PCT/SE1998/000172 patent/WO1998033731A1/en not_active Application Discontinuation
  • 1998-02-02 JP JP53281498A patent/JP2001510426A/ja active Pending
  • 1998-02-02 AU AU58923/98A patent/AU725914B2/en not_active Ceased
  • 1998-02-02 PL PL33475298A patent/PL334752A1/xx unknown
  • 1998-02-02 CN CN 98802255 patent/CN1246834A/zh active Pending
  • 1998-02-02 BR BR9807119-0A patent/BR9807119A/pt not_active Application Discontinuation
  • 1998-02-02 EP EP98902369A patent/EP1015364A1/de not_active Withdrawn

Non-Patent Citations (1)

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