Textile stranded rope

Abstract

Textile stranded rope comprising a core and at least one textile strand layer with strands, wherein the core and the strands are made of a textile material and / or of a plastic, wherein strands of an outer strand layer have a tubular covering which completely and form-fittingly encloses at least individual strands of the outer strand layer, wherein the strands completely enclosed by the tubular covering are freely movable in the longitudinal direction relative to the tubular covering, wherein a stabilizing layer is present which is at least partially bonded to the tubular covering and at least partially encloses it.

Description

[0001] The invention relates to the technical field of conveyor technology and concerns a textile stranded rope in which individual or all strands of the outer strand layer have a covering in which the strands can move freely along their lay direction. The textile stranded rope according to the invention can, for example, be used as a load-bearing element in multi-layered drum winches.

[0002] Technical textile ropes are primarily manufactured as braided ropes. This is mainly due to the flexible nature of the textile fibers, the geometrically precisely defined properties of the rope construction, the simple design, and the torsional stability. However, in addition to braided ropes, there are also twisted rope constructions made of textile fibers, which are referred to in rope technology as laid ropes. Laid textile ropes are generally single-layered, constructed as a stranded rope with three or four main strands and optionally a core.

[0003] In wire rope technology, multi-layered, laid ropes are referred to as round strand ropes. In cross-section, they consist of several ring-shaped, concentric strand layers with strands running helically along the rope axis. The strand layers are numbered radially outwards, starting from the inside with L0, which denotes the core. Analogously to wire rope technology, laid textile ropes can be composed of multiple plies and twisted fiber material to form strands or sub-strands. According to the invention, such ropes are referred to as textile stranded ropes.

[0004] Textile stranded ropes, comparable in construction to wire ropes, are far less common than braided fiber ropes due to their complex structure, but have been state-of-the-art for over 30 years. To achieve moment equilibrium (rotation-free rope) or a reduced external moment (low-rotation rope), the rope layers are arranged in opposite lay directions. Often, the inner rope layers are laid in the opposite direction to the outer strand layer, although other combinations of directions are also possible.

[0005] For a long service life, the prior art for both steel wire and fiber ropes running over pulleys and drums assumes that the strands must be able to move relative to each other, especially when the lay length factor (lay length divided by rope diameter) is less than 8. Otherwise, inherent relative movements can only be compensated for by material-specific or structure-related elasticity. The use of a plastic sheath, typically made of a polyurethane material (EP1, EP2, etc.), disrupts the relative movements of the outer strands. Frictional contact (high coefficient of friction between the sheath and strand) and / or material contact (firm bond between sheath and strand) only allows strand movement due to the elasticity of the sheath material. Larger movements generally lead to delamination and thus to the sheath sliding / decoupling from the core rope.The use of a plastic sheath is therefore, as is known from the prior art, subject to two conditions: very low relative movements due to large lay length factors (leading to reduced service life) and a material bond and / or a force bond due to high coefficients of friction between the sheath / outer strands.

[0006] From EP 0 995 832 B1, a synthetic rope is known in which the outer strands of a plastic-coated rope have a lay length 1.5 to 1.8 times greater than the inner strands in order to minimize relative movement, and whose sheath material is preferably polyurethane. The synthetic fiber rope consists of at least two concentric strand layers of load-bearing synthetic fiber strands, in which the strands of an outer strand layer are separated from the strands of an adjacent inner strand layer by an intermediate layer. The strands of the outer strand layer are twisted with the adjacent inner strand layer. The intermediate layer follows the relative movement of the strands through elastic deformation and is arranged without a material bond between the inner and outer strand layers.

[0007] Furthermore, EP 3 215 671 B1 discloses a rope made of textile fiber material, in which the load-bearing fiber material of the rope consists of high-strength plastic fibers with a tensile strength of at least 14 cN / dtex. The rope is in the form of a spiral strand rope and has at least two, preferably at least three, concentric load-bearing strand layers, wherein the individual strands of the strand layers are movable relative to each other, and the fiber material used has a density of 1.4 g / cm³. 3 The rope has a textile fiber filling of ≥ 75%, preferably ≥ 85%. The outermost textile layer of the rope has a coefficient of friction µ against steel of µ<0.15.

[0008] EP 0 672 781 B1 discloses a textile stranded rope with a tubular plastic intermediate sheath located between oppositely twisted strand layers without fabric contact, intended to reduce friction and surface pressure between the strand layers. A plastic outer sheath is also disclosed, which encloses and secures the outermost strand layer. The strands of the individual strand layers are movable relative to each other.

[0009] EP 0 934 440 B2 discloses a fiber rope for traction elevators in which all load-bearing strands have a coating layer and the outer strands are enclosed by a sheath. Polyaramid fibers may be embedded in the sheath. The coating layers of adjacent strands can move relative to each other and the coating layers can move relative to the sheath. Consequently, there is no material bond between the coating layers and the outer sheath.

[0010] EP 1 004 700 A2 discloses a sheathless synthetic fiber rope in which, instead of an extruded protective sheath, a liquid coating of the synthetic fiber strands in the outermost strand layer is proposed. The coating, which contains UV stabilizers and other additives for protection against abrasion and environmental influences damaging the rope, ensures reliable UV protection and sufficient abrasion resistance of the rope on a permanent basis.

[0011] A disadvantage of textile fiber ropes is their significantly lower torsional stiffness compared to wire ropes. Furthermore, when multi-layered ropes are wound on drums, forced twisting and external torques occur due to the oblique tension and rolling motion of adjacent strands. These forced twists, particularly in textile stranded ropes, lead to irreversible changes in the rope structure. The resulting internal moments of the individual strand layers add up to the externally applied moments and can lead to rope twisting or even untwisting of the rope structure.

[0012] The sheath layers of textile stranded ropes known from the prior art, which are only extruded on the last strand layer, tend to undergo topological deformation and material plasticization during multi-layer winding. In combination with low transverse contraction capacity, this leads to delamination of the plastic. This can cause local sheath displacement and build-up. The resulting material accumulations initiate significantly increased wear, which is why plastic sheath layers must be thick.

[0013] Plastic-coated ropes are also known from the prior art, in which the load-bearing strands are impregnated with epoxy resin, for example, and a material-bonded connection is achieved between the strands of the outer strand layer and the plastic sheath. Since the strands in such a construction can only move relative to each other via structural and material-specific elasticities, length compensation of the strands or the rope must be achieved through elasticity. However, this is only possible by selecting very large lay lengths or lay length factors, especially for the outer strand layer, for example with a lay length factor > 8.This leads, on the one hand, to higher rope stiffness and tensile strength, but on the other hand, also to a significantly reduced rope service life when running over sheaves due to the reduced bending fatigue strength and a significantly lower resistance to forced twisting due to insufficient torsional stiffness. Such designs have proven disadvantageous for cranes with safety factors of s ≥ 4 and multi-layer winding.

[0014] The object of the present invention is to provide a textile stranded rope that is characterized by improved torsional stiffness with less forced twisting, improved bending fatigue strength and improved winding capability.

[0015] The problem according to the invention is solved by the features of the independent claim. The dependent claims represent advantageous embodiments of the features of the main claim, which may also be combined in the form of an AND combination.

[0016] The problem is solved by a textile stranded rope comprising a core and at least one textile strand layer with strands, wherein the core and the strands are made of a textile material and / or of a plastic, wherein strands of an outer strand layer have a tubular covering which completely and form-fittingly encloses at least individual strands of the outer strand layer, wherein the strands completely enclosed by the tubular covering are freely movable in the longitudinal direction relative to the tubular covering.

[0017] It is advantageous if there are several layers of strands.

[0018] It is also advantageous if all strands of the outer strand layer have a tubular sheath.

[0019] In an advantageous embodiment of the textile stranded rope, at least two layers of strands arranged one above the other are present, which have a different laying direction.

[0020] According to the invention, a stabilizing layer is provided which is at least partially bonded to the tubular covering and at least partially encloses it.

[0021] Furthermore, it is advantageous if the tubular covering and / or the stabilizing layer consists of a sliding material with a Shore hardness of ≥ 50D, and it is also advantageous if the tubular covering and / or the stabilizing layer are made of the same material, wherein the tubular covering and / or the stabilizing layer is particularly advantageous if it consists of polyamide.

[0022] In an advantageous embodiment of the textile stranded rope, an outer sheath layer and / or inner sheath layer is present, wherein the surface of the outer sheath layer is particularly advantageously made of a non-textile material and has a coefficient of friction of ≤ 0.15.

[0023] It is also advantageous if the outer shell layer has a fiber composite material with a plastic matrix and at least one reinforcing fiber embedded in it in a helical shape.

[0024] Furthermore, it is advantageous if the outer sheath layer has several reinforcing fibers oriented opposite to the lay direction of the outer strand layer arranged beneath the sheath layer. It is also advantageous if the outer sheath layer has a cross-lamination consisting of at least one reinforcing fiber oriented opposite to and one reinforcing fiber oriented in the lay direction of the outer strand layer.

[0025] In an advantageous embodiment of the textile stranded rope, at least the tubular covering has a viscous additive, which is particularly advantageously a low-viscosity liquid or a solid lubricant.

[0026] It is also advantageous if at least the tubular covering, the stabilizing layer, the inner jacket layer and / or the outer jacket layer has an antistatic agent to reduce electrostatic charging < 100 ohms.

[0027] Advantageously, the fibers of the strands and / or the reinforcement consist of UHMWPE, TLCP, carbon, PBO and / or aramid.

[0028] In an advantageous embodiment, at least one electrical and / or optical conductor may be provided, wherein the at least one conductor is particularly advantageously made of copper, carbon, glass and / or plastic fiber. It is also particularly advantageous if the electrical and / or optical conductor is arranged helically around the strand axis of at least one strand.

[0029] It is also advantageous if at least two layers of strands are arranged in parallel.

[0030] Furthermore, it can be advantageously provided that the strands of an inner strand layer are made of a material with a lower modulus of elasticity than the strands of the strand layer arranged above it.

[0031] It can also be advantageous to provide that the fill level of textile material is < 75%, preferably 60%.

[0032] The solution according to the invention provides a textile stranded rope that is characterized by improved torsional stiffness, shape and rotational stability with less forced twisting, improved bending fatigue strength and better winding capability.

[0033] The technical advantages are achieved through a textile stranded rope comprising a core and at least one layer of strands, wherein the core and the strands are made of a textile material and / or a plastic. The at least one layer of strands is formed from several textile strands, with at least some individual strands of an outer layer having a tubular sheath.

[0034] According to the invention, a tubular covering is understood to mean the complete enclosure of the outer surface of the strands.

[0035] According to the invention, the outer strand layer is understood to be the strand layer of the textile stranded rope that is arranged radially furthest away from the core and may be arranged under an outer sheath layer.

[0036] It has been observed, particularly in rope constructions with multiple strand layers and an outer sheath connected to the outer strand layer by a force-fit connection, that externally applied forces cause a forced twisting, but also a reduction in the cross-section of the load-bearing strand layers, leading to permanent and undesirable twisting or displacement of the rope assembly and / or to the sheath detaching from the inner rope body, since the individual strand layers and / or the sheath layer are movable relative to the outer load-bearing strand layer.

[0037] To eliminate the aforementioned disadvantages, the invention proposes that at least some or even all of the strands of the outer strand layer have a tubular sheath. The strands of the outer strand layer are each completely and positively enclosed by the tubular sheath. The sheath, which is purely positively connected to the strands, allows the strands to be movable in the longitudinal direction relative to the tubular sheath.

[0038] The tubular sheaths, designed as a kind of strand channel, enclose individual or all strands of the outer strand layer and are made of materials, preferably plastics, that completely enclose the strands, impose an orientation on the strands in space, and allow relative movement between the sheath and the respective encased strand. Due to the tubular and form-fitting sheaths, the strands can still perform relative movements, thereby achieving an advantageous combined effect of increased torsional stiffness and improved flexural fatigue strength of the textile stranded rope.

[0039] It is conceivable that the tubular sheaths are designed in such a way that they functionally represent the outer sheath layer. For this purpose, several strands of the outer strand layer are sheathed in a tubular shape before the stranding process, whereby individual or even all adjacent tubular sheaths are bonded together after the stranding process.

[0040] In an advantageous embodiment of the invention, it can be provided that several strand layers are present, wherein only the strands of the outer strand layer have the tubular coverings.

[0041] Surprisingly, particularly in drum applications with loads corresponding to a safety factor s<7 and increased frictional work as well as externally acting torques, it was found that the use of multi-layered textile ropes, especially textile stranded ropes, in the interaction of the tubular sheaths with the freely moving strands of the outer strand layer leads to improved operational behavior.

[0042] In the case of multiple strand layers, these are connected to each other by frictional stranding and / or material-locking stranding, whereby, within the scope of the invention, frictional stranding is understood to mean that the strands are highly compacted and frictionally connected to the adjacent strand layers during stranding under the application of defined transverse forces.

[0043] In an advantageous embodiment, multiple strand layers can have different lay directions. Different lay directions are characterized by the winding orientation and are distinguished by the terms S-lay and Z-lay. In an S-lay, the windings run from the upper left to the lower right, while in a Z-lay, the windings run from the upper right to the lower left.

[0044] To prevent cross-sectional narrowing and forced twisting, and thus improve the dimensional stability of the textile stranded rope, it is proposed that an additional stabilizing layer be arranged on the tubular sheaths of the strands in the outer strand layer. This stabilizing layer is at least partially bonded to the tubular sheaths of the strands and at least partially encloses them. It is important that the strands remain freely movable within the tubular sheaths. For this purpose, several strands of the outer strand layer are provided with the tubular sheaths before the stranding process. Subsequently, the material of the stabilizing layer is added, preferably by extrusion from the outside, and after the stranding process, it is bonded to the material of the stabilizing layer.The material of the stabilizing layer can only partially or completely fill the free space surrounding the strands inside the rope.

[0045] In a preferred embodiment of the invention, it is conceivable that the strands of the outer strand layer are completely encased by the material of the stabilizing layer, wherein in this case the material of the stabilizing layer can be materially bonded to an inner sheath layer located between the insert or a further strand layer or insert.

[0046] The aforementioned designs with an additional stabilizing layer offer the technical advantage that twisting or displacement of the outer strand layer within the rope composite and / or a possible outer sheath layer on the rope are reduced or even prevented, without impairing the elastic properties of the textile stranded rope.

[0047] The stabilizing layer can be formed, for example, by barriers between the strands from a material bond between an inner sheath layer and an outer sheath layer, or by materially bonded tubular coverings of adjacent strands and / or by an inner sheath layer and / or outer sheath layer that is materially bonded to the tubular coverings.

[0048] Another technical advantage of the stabilizing layer is that a possible outer sheath layer can be bonded to the stabilizing layer in a material-bonded and full-surface manner, so that in particular a twisting of the sheath layer relative to the outer strand layer is avoided.

[0049] To ensure improved mobility of the strands in the tubular sheaths or the stabilizing layer, it may be advantageously provided that the tubular sheath and / or the stabilizing layer consists of a sliding material with a Shore hardness of ≥ 50D and particularly advantageously has a Shore hardness of 65D.

[0050] The stabilizing layer and / or the tubular covering of the strands of the outer strand layer can advantageously consist of a hard, low-friction material, preferably polyamide.

[0051] To improve the material bond between the tubular sheath and the stabilizing layer, it is advantageous to provide that these are made of the same material and are materially bonded, for example by thermal bonding. The material bond between the stabilizing layer and the tubular sheaths of the strands in the outer strand layer does not restrict the movement of the strands within the sheaths.

[0052] In an advantageous embodiment, it can be provided that the stabilizing layer, the tubular covering and / or the outer shell layer is made of a hard, impact-resistant and low-friction plastic material.

[0053] It is conceivable that an outer sheath layer and / or an inner sheath layer is present, which is materially bonded to the stabilizing layer or the tubular sheaths of the strands of the outer strand layer. The outer sheath layer can be an outer layer or a layer system formed from one or more materials, preferably plastics, wherein short, long, or continuous fibers can be incorporated into the material of the outer sheath layer.

[0054] The technical advantage of such a materially bonded outer sheath layer is that the sheath layer follows the movements of the outer strand layer, thereby preventing or significantly reducing sheath shifting, sheath detachment and sheath twisting relative to the outer strand layer.

[0055] To improve the tribological system when using the textile stranded rope, it can advantageously be provided that the surface of the outer sheath layer consists of a non-textile material and has a coefficient of friction of ≤ 0.15.

[0056] In a further advantageous embodiment, it can be provided that the outer shell layer comprises a fiber composite material with a plastic matrix and at least one reinforcing fiber embedded therein in a helical shape.

[0057] The outer shell layer, thanks to at least one reinforcing fiber or fibers embedded in the polymer matrix, exhibits improved abrasion resistance and torsional stability, particularly in drum applications. Aramid fibers have proven advantageous for this purpose.

[0058] To improve the bonding of the at least one reinforcing fiber in the plastic matrix, it can advantageously be provided that the adhesion conditions of the reinforcing fibers in the plastic matrix are improved by the use of adhesion promoters, with which the yarn surface of the reinforcing fiber(s) is freed from fats and / or silicones.

[0059] It is conceivable that the outer sheath layer has several reinforcing fibers which are oriented opposite to the laying direction of the outer strand layer arranged under the sheath layer, whereby it is particularly advantageous if the sheath layer has a cross-layer of at least one reinforcing fiber opposite to and one reinforcing fiber in the laying direction of the outer strand layer.

[0060] The arrangement opposite to the laying direction of the outer strand layer beneath it results in a complete or partial moment equilibrium being established under load. This ensures that the relative position of the outer strand layer and the outer strand layer beneath it remains unchanged due to the compensating effect of the opposing laying direction. Twisting and deformation between the outer strand layer and the strand layer are thus effectively prevented.

[0061] To prevent increased wear and poor winding behavior of the textile stranded rope, the outer sheath layer can be provided with an additional viscous additive, wherein the additive is particularly advantageously a low-viscosity liquid or a solid lubricant. In contrast to the prior art, in which the additive is applied to the surface of the sheath layer, the invention proposes to incorporate the viscous additive directly into the polymer matrix of the sheath layer, thereby permanently improving the sliding and friction properties and increasing the service life of the rope.

[0062] Advantageously, waxes, molybdenum(IV) sulfide, perfluoroalkoxy polymers, polytetrafluoroethylene, or graphite can be used as viscous additives. This reduces the coefficient of static friction, thereby improving winding behavior, and also reduces surface abrasion.

[0063] Other additives, such as agents for reducing the electrostatic charging of the textile stranded rope or demolding aids, can also be used as viscous additives, as they have the desired friction-reducing properties.

[0064] It may be provided that, in order to reduce unwanted electrostatic charges of the textile stranded rope, the tubular covering, the stabilizing layer and / or the sheath layer has an antistatic agent to reduce the electrostatic charge < 100 ohms.

[0065] To achieve the desired mobility of the strands within the tubular sheathing and / or the material of the stabilizing layer, strands with fibers made of UHMWPE, TLCP, carbon, PBO and / or aramid have proven to be advantageous.

[0066] It is also conceivable that at least one strand of a strand layer, the core, the stabilizing layer, and / or the sheath layer comprises at least one electrical or optical conductor. Such electrical or optical conductors can be made, for example, of copper or carbon as an electrical conductor, or of glass or plastic fiber as an optical conductor, with the at least one conductor being made of copper, carbon, glass, and / or plastic fiber being particularly advantageous.

[0067] To reduce the mechanical stress on the conductor when using the textile stranded cable, it can be arranged helically around a strand, the tubular sheath, in the stabilizing layer and / or in the outer sheath. The conductor can be used, for example, as a sensor, data transmission line, or optical fiber.

[0068] To provide improved stability of the textile stranded rope and to securely fix the strands within the textile stranded rope, the filling level is advantageously < 75%, preferably 60%.

[0069] The aforementioned fill level of textile material is calculated according to ISO 2307 using the formula f=m / [(π*d2 / 4)]*ρM]*100 in %, with m ... mass of textile material in g / m of the load-bearing and non-load-bearing textile fiber components, d ... rope outer diameter in mm and ρ M ... average material density of the textile fibers in g / cm³ 3 .

[0070] The average material density of the textile fibers is calculated using ρM=(m1*ρ1+m2*ρ2+…+mn*ρn) / mges, where m 1...n ... mass fraction of the respective textile fibers used in the rope sample ρ 1..n... material density of the respective textile fibers used and m ges ... total mass of all textile fibers in the rope sample.

[0071] The invention is explained in more detail below using three exemplary embodiments. The accompanying figures show Fig. 1 Schematic representation of a textile stranded rope with two strand layers without a stabilizing layer and outer sheath layer, Fig. 2 Schematic representation of a textile stranded rope with two strand layers with partial stabilizing layer without outer sheath layer, Fig. 3 Schematic representation of a textile stranded rope with two strand layers with partial stabilizing layer and outer sheath layer, and Fig. 4 Schematic representation of a textile stranded rope with two strand layers and a fully enclosing stabilizing layer without an outer sheath layer. Example 1

[0072] According to Fig. 1. A textile stranded rope is provided containing a core 0 made of aramid. The rope has a total of 2 strand layers, with the strands 1 of the inner layer and the strands 2 of the outer layer being made of UHMWPE synthetic fibers. The inner layer is arranged in an S-lay direction, while the outer layer is arranged in a Z-lay direction. Each strand 2 of the outer layer has a tubular sheath 4 made of polyamide. An inner sheath 3 made of an elastic TPU is arranged between the strand layers. Example 2

[0073] According to Fig. 2. A textile stranded rope is provided that contains a core 0 made of aramid. The stranded rope has a total of 2 strand layers, with the strands 1 of the inner strand layer and the strands 2 of the outer strand layer being made of UHMWPE synthetic fibers. The inner strand layer is arranged in the S-lay direction, while the outer strand layer is arranged in the Z-lay direction. Each strand 2 of the outer strand layer has a tubular sheath 4 made of polyamide. An inner sheath 3 made of an elastic TPU is arranged between the strand layers. The strands 2 of the outer strand layer with the tubular sheath 4 are surrounded in an outer circumferential region by a stabilizing layer 5, which is materially bonded and connected to the tubular sheaths 4 in a partial circumferential region. The stabilizing layer 5 has, according to Fig. 3. In addition, an outer sheath layer 6 is formed, which is made of a polymer matrix and in which two reinforcing fibers made of aromatic polyester yarns are embedded. These fibers are arranged helically in the S-lay direction, opposite to the lay direction of the outer strand layer. The sheath layer 6 is bonded to the stabilizing layer 5 by a targeted thermal process and has a coefficient of static friction of µ = 0.13. To reduce the electrostatic charging of the textile strand rope, the polymer matrix of the outer sheath layer 6 contains an antistatic agent. Furthermore, the polymer matrix contains molybdenum(IV) sulfide as an additive to reduce external rope friction. The textile strand rope has a fill factor of 70%. Example 3

[0074] According to Fig.A textile stranded rope is provided, containing a core 0 made of aramid. The rope has a total of two strand layers, with strands 1 and 2 made of UHMWPE synthetic fibers. The inner strand layer is arranged in the S-lay direction, while the outer strand layer is arranged in the Z-lay direction. Each strand 2 of the outer strand layer has a tubular sheath 4 made of polyamide. The outer strand layer with the tubular sheaths 4 of the strands 2 is completely surrounded by a stabilizing layer 5 and bonded to the tubular sheaths 4. In this case, the surface of the stabilizing layer 5 constitutes the outer sheath layer. An additional outer sheath layer 6 is not required. Reference symbol list 0 deposit 1 strand of the inner strand layer 2 strands of the outer strand layer 3 Inner mantle layer 4 Tubular covering 5 stabilizing layer 6 outer mantle layer

Claims

[1] Textile stranded rope comprising a core and at least one textile strand layer with strands, wherein the core and the strands are made of a textile material and / or of a plastic, wherein strands of an outer strand layer have a tubular covering which completely and form-fittingly encloses at least individual strands of the outer strand layer, wherein the strands completely enclosed by the tubular covering are freely movable in the longitudinal direction relative to the tubular covering, wherein a stabilizing layer is present which is at least partially bonded to the tubular covering and at least partially encloses it. [2] Textile stranded rope according to claim 1, in which several strand layers are present. [3] Textile stranded rope according to claim 1, wherein all strands of the outer stranded layer have a tubular covering. [4] Textile stranded rope according to claim 1, in which at least two stranded layers arranged one above the other are present, having different laying directions. [5] Textile stranded rope according to claim 1, wherein the tubular covering and / or the stabilizing layer consists of a sliding material with a Shore hardness of ≥ 50D. [6] Textile stranded rope according to claim 1, wherein the tubular covering and / or the stabilizing layer are made of the same material. [7] Textile stranded rope according to claim 6, wherein the tubular covering and / or the stabilizing layer consists of polyamide. [8] Textile stranded rope according to claim 1, wherein an outer sheath layer and / or an inner sheath layer is present. [9] Textile stranded rope according to claim 8, wherein the surface of the outer sheath layer consists of a non-textile material and has a coefficient of friction of ≤ 0.

15. [10] Textile stranded rope according to claim 8, wherein the outer sheath layer comprises a fiber composite material with a plastic matrix and at least one reinforcing fiber embedded therein in a helical manner. [11] Textile stranded rope according to claim 8, wherein the outer sheath layer has several reinforcing fibers which are oriented in the opposite direction to the lay direction of the outer strand layer arranged under the sheath layer. [12] Textile stranded rope according to claim 8, wherein the outer sheath layer comprises a cross-layered fabric consisting of at least one reinforcing fiber opposite to and one reinforcing fiber in the laying direction of the outer stranded layer. [13] Textile stranded rope according to claim 1, wherein at least the tubular covering comprises a viscous additive, which is particularly advantageously a low-viscosity liquid or a solid lubricant. [14] Textile stranded rope according to claim 1 or 9, wherein at least the tubular covering, the stabilizing layer, the inner sheath layer and / or the outer sheath layer has an antistatic agent to reduce the electrostatic charge < 100 ohms. [15] Textile stranded rope according to claim 1, wherein the fibers of the strands and / or the reinforcement consist of UHMWPE, TLCP, carbon, PBO and / or aramid. [16] Textile stranded rope according to claim 1, wherein at least one electrical and / or optical conductor is present, wherein the at least one conductor is particularly advantageously made of copper, carbon, glass and / or plastic fiber. [17] Textile stranded rope according to claim 16, wherein the electrical and / or optical conductor is arranged helically around the strand axis of at least one strand. [18] Textile stranded rope according to claim 1, in which at least two layers of strands are arranged in parallel lay. [19] Textile stranded rope according to claim 2, wherein the strands of an inner strand layer are made of a material with a lower modulus of elasticity than the strands of the strand layer arranged above it. [20] Textile stranded rope according to claim 1, wherein the fill level of textile material is < 75%, preferably 60%.

Images