WO1994020969A1 - Vorrichtung zum herstellen einer kabelverseilung - Google Patents
Vorrichtung zum herstellen einer kabelverseilung Download PDFInfo
- Publication number
- WO1994020969A1 WO1994020969A1 PCT/AT1994/000003 AT9400003W WO9420969A1 WO 1994020969 A1 WO1994020969 A1 WO 1994020969A1 AT 9400003 W AT9400003 W AT 9400003W WO 9420969 A1 WO9420969 A1 WO 9420969A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- laying
- wires
- guide elements
- stranding
- torsion
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
- H01B13/0235—Stranding-up by a twisting device situated between a pay-off device and a take-up device
Definitions
- the invention relates to a device for producing a cable stranding with alternating lay direction (SZ stranding) from individual wires which are guided in a plurality of guide elements arranged one behind the other.
- SZ stranding alternating lay direction
- a device for producing a cable reinforcement is known from the prior art, in which a periodically moved washer and a similar guide washer are used.
- the disks arranged in bearing shells have to be driven separately, which means a comparatively great mechanical outlay to achieve an exact phase-shifted movement of the individual slides.
- the disks not only have to make a rotatable connection with a drive, but also have to be separately displaceable in order to compensate for the length when the wire is twisted.
- a device of this type therefore requires a complex and expensive construction, an exact course of the wire twisting usually not being possible due to too many interacting components.
- the object of the invention is to provide a simply constructed and easy-to-use device for producing a cable stranding, which in particular avoids the disadvantages mentioned above.
- the invention solves the problem in that the spaced guide elements are connected directly to one another via devices for phase-shifting displacement, for example a torsion body or at least one rope.
- the torsion body is a rod or else a screw body
- the guide elements which are preferably tongue-shaped, being placed thereon, and in the case of a torsion rod are also formed in one piece with this.
- the device is also characterized in that the at least one rope is connected to the guide elements in a movement-locking manner.
- the rope can pass through the guide elements, only the rope breathing in this embodiment.
- a further embodiment of the invention is characterized in that the displacement of the guide elements is carried out by two ropes arranged symmetrically with respect to the central longitudinal axis of the device, the ropes advantageously being connected in a rotationally fixed manner to the guide elements Rope as well as the guide elements, the rope is guided through the elements, the discs go with the stranding movement.
- An important criterion is certainly also given by the fact that it is possible to give in the rope when it is twisted with respect to the guide elements for the wires.
- the guide elements are fixed to the rope or to the ropes, a slight axial movement of the ropes to avoid frictional losses being entirely possible.
- the guide elements can be held in a guide which is arranged fixed to the frame, or can also be held on the rope so as to be displaceable in the axial direction.
- the axial guidance is advantageously provided by nipples arranged in the receiving openings of the guide elements.
- the invention also provides that the individual wires or wires pass through the guide elements in a centrically symmetrical manner in order to keep the deflection as low as possible and thus to minimize the friction losses.
- the ropes are fixed to the guide elements via press nipples.
- the device is characterized in that the device for phase-shifting the guide elements is arranged in a rotationally fixed manner on a laying element arranged in the area of the stranding head for receiving the individual wires, a motor arranged outside the stranding head engaging.
- the drive of the laying element only preferably a laying disc or a laying shaft, is sufficient to operate the entire device, since all the guide elements guiding the wires are moved with a corresponding phase shift due to the design of the device.
- the guide elements are guide disks, preferably perforated disks.
- each rope is preferably tensioned pneumatically.
- the laying element comprises a plurality of longitudinal or through grooves for guiding the wires, whereby after the passage the laying element, the twisted wires are held together by a stranding nipple. It is important that the twisted rope strand no longer opens, the use of a stranding nipple having proven to be particularly advantageous, but not absolutely necessary.
- a device is also conceivable in which at least one of the guide disks, preferably all guide disks, are held in bearings. This is particularly advantageous for large or heavy panes.
- At least one support element for receiving the rope (s) can be provided according to an embodiment of the invention, the rope (s) advantageously being (are) guided through the support element.
- the support element can be designed as a hollow element, preferably a hollow tube, wherein, according to one embodiment, the two entry surfaces of the support element correspond to the cross section of a guide element.
- Another object of the invention is to propose a method for producing a cable stranding with alternating lay direction from individual wires.
- Machines which provide a single drive for all the laying disks, which operates them via a common drive shaft and an output per laying disk.
- This design is particularly disadvantageous because all the sheaves are taken along by a rigid drive and the entire moment of inertia must be implemented when changing the direction of rotation.
- the twisting of the individual wires is carried out in several successive memory zones with a self-controlled memory function, the twisting direction is reversed after the predetermined drive impacts resulting from the passage of the memory zones have been reached, and that At the time of the change of direction, the storage zones are decoupled from inertia.
- the advantageous division of the twisting section into several storage zones, the storage function of which is predetermined regardless of their design, enables complete control over the entire twisting section. Due to the inertia decoupling of the swirl storage section, the conventionally necessary synchronization of the laying elements can be omitted.
- Each storage zone is advantageously assigned an individual angle of rotation.
- the switchover time of the rotor is chosen in particular such that it is smaller than the angle of rotation assigned to a storage zone, as a result of which the following storage zones are free from accelerations or mass forces. All storage zones are only taken along when the run is constant.
- twist angle of all storage zones it is also possible for the twist angle of all storage zones to be of the same size, although the twist angle of adjacent storage zones can be quite different for individually different reasons.
- the invention also relates to a device for carrying out the method, and is characterized in that several storage zones connected in series and passed through by the individual wires are provided between a draw-in for the single wires and a stranding rotor.
- Each of these storage zones has a controlled storage function, which is determined by the coupling of the storage zone to one another and its length.
- successive storage zones are coupled to one another and each storage zone has a device for limiting the angle of rotation of the storage zone adjoining it.
- Each storage zone advantageously has two laying devices which are spaced apart and connected to one another in the running direction of the individual chargers, the angle of rotation of the laying devices relative to one another preferably being 180 °, the angle mentioned being particularly advantageous because at this angle there is generally just no " Linking "of the single wires occurs.
- one of the two laying devices preferably laying disks, has a radial projection which interacts with a stop of the laying device adjacent to it.
- the angle of rotation of the storage zone is controlled by this stop.
- the laying devices are advantageously connected to one another with a torsion link chain.
- the device can also be designed in such a way that storage zones which continuously merge into one another are provided by a torsion spring which is arranged between a draw-in for the wire loaders and a stranding rotor and passes through the single wires.
- the self-control of the partial areas is determined by the length of the spring and the spring properties. According to a further development of this embodiment, provision is also made for laying devices to be arranged on the torsion spring at intervals determined by the predetermined twisting strokes.
- the laying devices are advantageously rod-shaped elements which are spaced apart from one another in the running direction of the wires and are arranged at an angle of 360 ° / number of wires in a sleeve comprising the spring.
- the storage zones are formed by individual torsion springs connected by means of a sorting device for the individual wires.
- the sorting device comprises a sleeve receiving the individual springs and a laying device arranged in the sleeve.
- the sleeve is advantageously formed in two parts and surrounded by two lock nuts.
- a further development of the invention is also characterized in that the storage zone comprises a support body and outer guide elements for the wires arranged thereon.
- Two rows of guide elements spaced apart from one another are preferably provided in the end regions of the support body in the circumferential direction of the support body.
- This design ensures that the wires to be stranded are adequately held.
- the guide elements can be rollers or sliding guides.
- the support body prefferably has a further central core in addition to the externally guided cores, the angle of rotation of the outer cores per storage unit being 180 °.
- the stranding rotor when the direction of rotation is changed, is decoupled from the portion of the storage zones which represents the acceleration mass.
- a device for stranding sector-shaped cores in which the laying device, which strands last in the working direction, comprises a plurality of tosion elements closely connected in series, each torsion element is provided with guides to prevent the cores from turning back, and the Angle of rotation of the torsion links relative to one another allows the guides to be adapted to the natural twisting profile of the wires in order to achieve the most uniform possible load on the wire surface during twisting by the guides.
- This serves, in particular, for the gentle twisting of a sector conductor and is advantageously realized by using a plurality of guides connected in series, which allow only slight rotation relative to one another.
- the rotation angle is limited by fixed stops or also by a torsion spring.
- 5a is a support element in longitudinal section
- FIG. 5c shows a longitudinal section through a further embodiment of a support element
- Fig. 8 a provided with guide elements torsion bar in a schematic
- 11a shows another embodiment of a storage unit according to the invention.
- Fig. 12 The supply device of the stranding device for the single wires
- FIG. 13 shows the end region of the storage unit according to FIG. 10;
- FIG. 14b shows a view in the running direction of the wires on FIG. 14a.
- 15a, 15b a further embodiment of a storage unit according to the invention in plan view and section.
- the individual wires 1 are fed to the device via a feed device 2 and pass through the torsion of the 3 continuously adjoining storage zones, in which swirl storage takes place, until they are fed from the laying nipple 4 at the stranding point 5 to a winding device in the twisted state.
- the storage zone adjacent to the stranding rotor 6 is driven by the latter, after which one storage zone after the other is continuously set in motion and the individual wires are thereby stranded.
- the wires or wires 1 to be stranded are fed from processes (not shown) through a fixed disk arranged on the rear foot 2 of the device in the device and are guided along the stranding axis 3 via a plurality of guide washers 10 to the stranding head 4, which in the front foot of the device is integrated.
- the two feet are kept at a constant distance by means of a U-beam 6.
- the laying shaft 7 rotatably arranged in the stranding head 4 and driven by an external motor is also shown.
- the twisted wires 1 are essentially fixed in their position by the stranding nipple 8 and prevented from opening again.
- the stranded wires are then wound onto a drum 9.
- FIG. 1 shows two possible embodiments of the interaction between Guide element 10 and the ropes 11 shown, the upper rope is a drive-through rope through the disk and the rope shown below is also guided through the guide disk 10, but is fastened on both sides with press nipple 12. In such an embodiment, both the rope and the guide disk can breathe.
- the laying shaft 7 passes through the adjoining guide disk 10 and is rotatably held in the stranding head 4 via ball bearings 13, the drive being carried out by a motor (not shown) (FIG. 3).
- the ropes 11 are ideally pretensioned by a pneumatic tensioning device 14 (FIG. 1) in order to avoid any sagging of the ropes.
- the pretensioner works hydraulically. It is also possible to pretension each rope separately.
- FIG. 2a shows a cross section through the laying shaft, which has four grooves 15 machined into the shaft, which are arranged offset at 90 ° to one another and accommodate the wires 1.
- the laying element 7 is ideally driven with a number of wires of approximately 6000 rpm, the motor having an output in the range of 75 hp; the take-off speed of the drum 9 can be around 800 m / min.
- the guide disks can be interchanged with one another in order to produce different wirings, so that a large working area can be covered with one machine.
- the guide disks ideally do not have their own drives or bearings, but are merely connected via the pneumatically prestressed cables 11 and coupled to the rotor with the laying element.
- the pitch circle diameters of the openings 16 of the guide disks 10 are so small that there are no significant speed and tensile force fluctuations for the wires at the inlet of the cable harness.
- laying element 7 designed as a laying disk, which is guided in a sleeve 19 by means of ball bearings 20.
- the wires 1 pass through the washer through nipples 21 arranged in the openings 16. These elements serve to reduce friction during passage.
- FIG. 5a, b show a support element 22 which is used in particular in the case of long storage distances.
- the support element shown is tubular.
- the ropes are guided through the openings 23 and the wires through the central opening 24.
- the side parts of the support element 22 can, as shown in FIG. 5c, also be welded into the tubular body.
- the support element 22 is guided in a housing 25 which is held in a longitudinally displaceable manner by a fixed support 26.
- Nipples 27 are arranged to the left and right of the support element, which can also be designed merely as a support disk (FIG. 6). In this embodiment, not shown, the ropes are simply threaded through the support element.
- the carrier 26 itself consists of a base plate 28, a support 29 which receives the support element 22 and which is supported against the base plate via a further element 30.
- the base plate is preferably fixed to the floor by means of fastening elements 31, the housing 25 is fixed in the opening 32 of the upright by screw connections 33 (FIGS. 7a-c).
- FIG. 8 shows a torsion bar 34, on which tongue-shaped guide elements 7 for the wires 1 are arranged at a distance.
- the guide elements are advantageously kept short in order to guide the wires as centrally as possible. When the rod is twisted, the guide elements are shifted out of phase.
- Polystal has proven to be a particularly inexpensive material for producing this rod.
- the rod and the guide elements can also be made in one piece.
- the single wires 1 are fed via a feed device 42 of the device and pass through the continuously adjoining storage zones formed by the torsion spring 43, in which swirl storage takes place until they are twisted by the laying nipple 44 at the stranding point 45 of a winding device be fed.
- the storage zone adjoining the stranding rotor 7 is driven by the latter, after which one storage zone after the other is continuously set in motion and the individual wires are thereby stranded.
- FIGS. 11a, 11b The implementation using a continuous torsion spring is shown in more detail in FIGS. 11a, 11b.
- laying devices 47a, 47b are provided, which are accommodated in a sleeve 48 comprising the torsion spring.
- the laying devices are spaced apart in the running direction of the wires and offset from one another by 90 °.
- the distance a between two such laying devices corresponds to the length of one storage zone.
- the angle of rotation for stored machine strokes is +/- 180 °.
- Control over the twisting of the storage sections is based on their length and the spring properties of the torsion spring.
- FIG. 11b shows the arrangement of four individual wires in the laying device according to FIG. 11a.
- FIG. 10 shows another embodiment of a storage zone, these storage zones being arranged in succession along the storage path between the feed device and the stranding rotor.
- the storage zone lies between two laying devices 49, preferably laying disks, which can also be rotated relative to one another by +/- 180 °.
- the washers 49 are spaced apart from torsion link chains 50 and can be moved therein via bearings 51.
- a radial projection 52 is provided, which cooperates with a stop 53 arranged in the end region of the adjacent storage zone, preferably also on a torsion link chain (FIG. 13).
- the selected lengths a and the coupling of the individual storage zones with one another in this way guarantee a self-controlled storage function of each partial area, since the wires can only be rotated by a predetermined angle between the distances specified by the laying devices.
- the interaction between the stop and the projection corresponds to the spring properties of the torsion spring of the embodiment according to FIG. 10.
- 14a shows a sorting device 54 for receiving individual torsion springs 55.
- Each individual torsion spring 55 extends over a storage zone.
- the sorting device 54 consists of a sleeve each comprising two torsion springs and is provided with a laying device 56 in its central region.
- the pull-in 58 shown in FIG. 12 for the single wires 1 forms a termination of the stranding device and comprises a spring receptacle 59 for a torsion spring as well as an anti-rotation device 60 for fixing it.
- the other end of the torsion spring 43 is fixed to the stranding rotor 7 driven by a motor 61.
- the sorting device 62 shown in this exemplary embodiment from the laying device 47a, 47b and the sleeve 48 is encompassed by a holder 63 comprising the sleeve 48.
- the support of the bracket is not shown.
- 15b shows the top view of a further embodiment of a storage zone, which is used in particular for wires with a larger diameter, as is the case in particular with power cables.
- the individual cores can themselves be made and coated from a large number of thin individual cores.
- the cores are held on a support body 64, the successive support bodies also being defined in their twist angle by a projection 52-stop 53 combination.
- Each support body in the form of a hollow tube has guide elements 65 in its end regions, which serve to guide the wires 1.
- the guide elements 65 are rotatably mounted rollers on the support body 64, which are arranged in each end region in two rows spaced apart in the circumferential direction.
- the individual wires are held by these guide elements and twisted when the guide element is rotated.
- the maximum angle of rotation in this version is +/- 180 °.
- FIG. 15a shows a section through FIG. 15b, an embodiment with four wires to be stranded being shown.
- the dot-dash line shows the movement of a single wire when the support body is rotated by 90 °.
- This embodiment also shows a central wire 66, around which the wounded wires are arranged in the cable head.
- the stranding head is decoupled from a portion of the storage elements representing the acceleration mass, i.e. there is an inertia decoupling from the swirl storage path during the switchover.
- the switchover time is only a few milliseconds.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ropes Or Cables (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU58281/94A AU5828194A (en) | 1993-01-15 | 1994-01-14 | Device for stranding cables |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA59/93 | 1993-01-15 | ||
AT5993 | 1993-01-15 | ||
ATA1051/93 | 1993-05-28 | ||
AT105193 | 1993-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994020969A1 true WO1994020969A1 (de) | 1994-09-15 |
Family
ID=25591287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT1994/000003 WO1994020969A1 (de) | 1993-01-15 | 1994-01-14 | Vorrichtung zum herstellen einer kabelverseilung |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU5828194A (de) |
SI (1) | SI9400014A (de) |
WO (1) | WO1994020969A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0756290A1 (de) * | 1995-07-26 | 1997-01-29 | E. Kertscher S.A. | Verseilanlage für reversierenden oder SZ Verseilmaschine |
EP0867894A1 (de) * | 1996-03-15 | 1998-09-30 | Gerhard Seibert | Vorrichtung zur Herstellung einer Kabelverseilung |
CN117954172A (zh) * | 2024-03-27 | 2024-04-30 | 国网安徽省电力有限公司宣城供电公司 | 一种电力设备电缆绞线装置及方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3847190A (en) * | 1972-12-19 | 1974-11-12 | Phillips Cable Ltd | Method and apparatus for twisting wires |
US3910022A (en) * | 1974-07-18 | 1975-10-07 | Northern Electric Co | Apparatus for stranding wires |
US4325214A (en) * | 1979-12-19 | 1982-04-20 | Northern Telecom Limited | Apparatus for stranding wire |
WO1987006050A1 (en) * | 1986-04-01 | 1987-10-08 | Oy Nokia Ab | Alternate reverse twisting method and apparatus both alternate reversely twisted product |
-
1994
- 1994-01-14 AU AU58281/94A patent/AU5828194A/en not_active Abandoned
- 1994-01-14 SI SI9400014A patent/SI9400014A/sl unknown
- 1994-01-14 WO PCT/AT1994/000003 patent/WO1994020969A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3847190A (en) * | 1972-12-19 | 1974-11-12 | Phillips Cable Ltd | Method and apparatus for twisting wires |
US3910022A (en) * | 1974-07-18 | 1975-10-07 | Northern Electric Co | Apparatus for stranding wires |
US4325214A (en) * | 1979-12-19 | 1982-04-20 | Northern Telecom Limited | Apparatus for stranding wire |
WO1987006050A1 (en) * | 1986-04-01 | 1987-10-08 | Oy Nokia Ab | Alternate reverse twisting method and apparatus both alternate reversely twisted product |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0756290A1 (de) * | 1995-07-26 | 1997-01-29 | E. Kertscher S.A. | Verseilanlage für reversierenden oder SZ Verseilmaschine |
FR2737337A1 (fr) * | 1995-07-26 | 1997-01-31 | Kertscher Sa E | Station de cablage pour machine de cablage alterne ou de type sz |
US5699660A (en) * | 1995-07-26 | 1997-12-23 | E. Kertscher S.A. | Stranding station for reverse lay or SZ type stranding machine |
EP0867894A1 (de) * | 1996-03-15 | 1998-09-30 | Gerhard Seibert | Vorrichtung zur Herstellung einer Kabelverseilung |
CN117954172A (zh) * | 2024-03-27 | 2024-04-30 | 国网安徽省电力有限公司宣城供电公司 | 一种电力设备电缆绞线装置及方法 |
CN117954172B (zh) * | 2024-03-27 | 2024-05-31 | 国网安徽省电力有限公司宣城供电公司 | 一种电力设备电缆绞线装置及方法 |
Also Published As
Publication number | Publication date |
---|---|
AU5828194A (en) | 1994-09-26 |
SI9400014A (en) | 1994-09-30 |
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