The invention relates to a method for producing a rope (1), wherein fibre bundles (2) are applied with a liquefied matrix material (5) upstream of and/or at a twisting point to form fibre strands (3), and are embedded into the liquefied matrix material (5) during stranding, by means of which fibre strands (3) a fibre core (6) of the rope (1) is formed and wires or wire strands (7) are wound about the fibre core (6). According to the invention, the matrix material of the fibre strands is hardened after the stranding, and the fibre strands (3) are subsequently stranded directly with one another without further application to form the fibre core (6). Preferably the fibre strands (3) are heated, during or after the stranding thereof to form the fibre core (6), in such a way that the matrix material (5) softens at least individual fibre strands (3), preferably all the fibre strands (3), another of the fibre strands (3) is connected with the matrix material (5), and is subsequently hardened, forming an integral bond with one another. The invention also relates to a rope produced according to the method.
The invention relates to a wire rope assembly unit, comprising a wire rope (4) and a device (1) for assembling the wire rope (4), which device is fastened at one end of the wire rope (4) and has a connecting element (2) that is arranged at the front on the end of the wire rope (4). The assembly unit (1) has a sleeve (3), which engages around an outer surface of an end section of the wire rope (4), the sleeve (3) preferably also engaging around the connecting element (2) in at least some regions. The sleeve (3) is made of a material, which is of lesser rigidity than strands (5, 6) of the wire rope (4) and, optionally, than the connecting element (2), and the sleeve (3) is pressed, hammered and/or rolled onto the wire rope (4) and, optionally, onto the connecting element (2) so as to produce a form-locked connection. In one embodiment of the invention, outer strands (6) of the wire rope (4) are separated from the wire rope (4) in a rope section, in which the wire rope (4) is arranged inside the sleeve (1), and the sleeve is connected, preferably welded, to ends of the outer strands (6) at its one edge.
F16G 11/02 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes with parts deformable to grip the cable or cablesFastening means which engage a sleeve or the like fixed on the cable
3.
WIRE CABLE AND METHOD AND DEVICE FOR PRODUCTION OF SAID WIRE CABLE
The invention relates to a method for producing a wire cable (1), wherein a core strand (3) is compacted and then braid strands (2) are stranded on the core strand (3), characterized in that the core strand (3) is hammered before stranding of the braid strands (2) in order to smooth the surface (10) thereof. A plastic layer is advantageously applied to the core strand (3) before stranding of the braid strands (2), wherein the braid strands (2) are pressed into the plastic layer (7), preferably while the plastic layer (7) is heated. In the preferred embodiment of the invention, the core strand is a core cable (3) and the braid strands are strands (2) of the wire cable (1) or the core strand is a heart strand (3) and the braid strands are outer core strands of a core cable of the wire cable. A greater breaking strength of the wire cable (1) is obtained by hammering the core strand (3) in order to smooth it than by compacting a core strand (1) with a roller compressor. The invention further relates to the wire cable (1) and to a device for producing the wire cable (1).
The invention relates to a device for producing a strand or a cable (30), in particular a wire strand or wire cable, which device comprises a rotatable arrangement (2) for feeding cords (3, 4) to a twisting point (5) at which at which the cords (3, 4) are to be twisted with one another, and an installation (1) for heating at least one of the cords (3, 4). According to the invention the heating installation (1) is rotatable jointly with the feed arrangement (2). The heating installation (1) is advantageously designed to heat a cord (3) provided for forming a centre strand or a cable core and/or cords (4) for forming outer strands, and preferably comprises a burner (6) for fuel and/or an electrically operated heater (7).
The invention relates to a method for producing a rope (10), in particular a wire rope, a fibre rope or a rope having wire and fibres, wherein the rope (10) is provided with a marking during the braiding thereof. According to the invention, the marking is changed during the braiding operation. Expediently, during braiding, the marking is provided successively with details characterizing the braiding progress, said details comprising production parameters, for example information relating to the length of the rope (10) already formed, about raw materials used, the braiding speed and/or the current braiding time. The details are provided on a wire, a wire strand (6) and/or a marking strand (1), wherein the details are printed on the wire, the wire strand (6) or the marking strand (1) or are embossed in the wire, the wire strand (6) or the marking strand (15), and/or chips, preferably radio chips (15a), are arranged in the rope. The invention also relates to a device for carrying out the method and to the rope provided with the marking.
The invention relates to a force transmission unit (10) that has a rope (3), particularly a wire rope, and a device for introducing a force into the rope (3), comprising a sleeve (1) enclosing the rope (3) and connected to the rope (3) under deformation. The force transmission unit (10) according to the invention is characterised by a connecting member (2) which is arranged between the sleeve (1) and the rope (3) and formed from a material that has a lower strength than the materials from which the sleeve (1) and the outer strands of the rope (3) are formed and which preferably has a hollow cylindrical shape.
F16G 11/02 - Means for fastening cables or ropes to one another or to other objectsCaps or sleeves for fixing on cables or ropes with parts deformable to grip the cable or cablesFastening means which engage a sleeve or the like fixed on the cable
7.
DEVICE AND METHOD FOR PRODUCING A TENSION-FREE, TWO-LAYERED WIRE CABLE AND CORRESPONDING WIRE CABLE WITH TWO STRAND LAYERS
The invention relates to a device for producing a wire cable with two strand layers, comprising units (8-12) for preforming strands (1, 2) during the stranding of the cable, which units are adjustable in order to change the type and/or the size of the preforming. At least two (9; 11) of the units (8-12) are adjustable independently of one another. The device comprises a preforming head (3) that has for each strand (1, 2) a group (4, 5) of successive forming rollers (6) in the feed direction (z) of the strands (1, 2), the strands (1, 2) being movable along said groups in order to be shaped and the position of said groups relative to one another being adjustable, and wherein the position of the forming rollers (6) relative to one another can be set within at least one of the groups (4, 5) independently of the position of the forming rollers (6) of at least one of the other groups (4, 5) relative to one another. A corresponding method for preforming the strands of a two-layered wire cable is also disclosed.
METHOD FOR PRODUCING A STRAND OR CABLE WITH A THERMOPLASTIC COATING, STRAND OR CABLE PRODUCED BY THIS METHOD, AND TWISTING DEVICE WITH MEANS FOR COATING WITH THERMOPLASTICS
The invention relates to a method for producing a strand or cable (20), in which fibres (2) and/or wires are twisted at a twisting point (3) to form the strand or cable (20). The fibres (2) and/or wires are coated with a liquefied matrix material (4) before and/or at the twisting point (3) and are embedded in the matrix material (4) during twisting. The fibres (2) and/or wires are immersed in the matrix material before and/or at the twisting point (3) and the formed strand or the formed cable (20) is cooled after the twisting in order for the matrix material (4) to solidify, preferably by air or in a cooling liquid, for example water. The invention further relates to a device for carrying out the method and to a cable produced by the method.
D07B 7/14 - Machine detailsAuxiliary devices for coating or wrapping ropes, cables, or component strands thereof
D07B 1/16 - Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
D07B 5/12 - Making ropes or cables from special materials or of particular form of low twist or low tension by processes comprising setting or straightening treatments
9.
CABLE, COMBINED CABLE MADE OF PLASTIC FIBERS AND STEEL WIRE STRANDS, AND COMBINED STRANDS MADE OF PLASTIC FIBERS AND STEEL WIRES
The invention relates to a combined cable having a core cable made of high-strength plastic fibers present as a twisted monofilament bundle (1) or a plurality of twisted monofilament bundles (6), and having an external layer (2, 7) of steel wire strands (4, 5), characterized in that the monofilament bundle or bundles (1, 6) is or are stretched to reduce the diameter and held in a cladding (2, 7), particularly braided cladding, in this state. The strain of the core cable under load is thus reduced, so that the load distribution between the steel cross-section and the plastic cross-section of the cable is improved. In the same sense, in reverse, in order to have the strain behavior of the strand layer approach that of the core cable, the cable has an intermediate layer (3) made of an elastic plastic, in which the steel wire strands are pressed at a distance from each other, such that the external layer stretches under load and contracts radially.
In a first embodiment, a picture is taken of the traveling wire cable in a stationary position at intervals that are equal to the ratio produced from the lay length or a multiple of the lay length and the travel speed of the wire cable, at least on one lay length or the above-mentioned multiple of the lay length, and the successive images are compared on at least one lay length or the above-mentioned multiple of the lay length and are monitored for changes in the image which are indicative of damages. In a second embodiment, the wire cable is instead of taking pictures exposed to flashes and the exposed image is detected on at least one lay length or the above-mentioned multiple of the lay length and monitored for changes in the image. Preferably, the respective repetition of the same outer stranded wire of the traveling wire cable is detected in the same location and every repetition or every other repetition or every third repetition is used for triggering the taking of a picture or for triggering the flash. In a third embodiment, a picture is taken of a large portion of the wire cable using a specialized camera and the image is split up into recurring units of length that correspond to the size of a lay length or a multiple of the lay length and the successive units of length are compared and inspected for changes in the image.
