CABLE SECTION AND METHOD FOR SPLICING A CABLE WHICH FORMS A PERSON TRANSPORTING WIRE CABLE
20200165775 ยท 2020-05-28
Inventors
Cpc classification
D07B7/169
TEXTILES; PAPER
International classification
Abstract
A rope portion of a rope that forms a person transporting wire rope having a diameter d, in particular of an endless rope, having at least one splice which is embodied as a long splice and which has a plurality of stranded longitudinal elements, in particular strands, at least one of which has at least one insertion end which at least portion-wise is inserted, in particular in place of a core, between other longitudinal elements, wherein the person transporting wire rope and/or the stranded longitudinal elements are at least largely free of a sheathing that at least partially encompasses the person transporting wire rope and/or at least one stranded longitudinal element.
Claims
1. A rope portion of a rope that forms a person transporting wire rope having a diameter d, in particular of an endless rope, having at least one splice which is embodied as a long splice and which has a plurality of stranded longitudinal elements, in particular strands, at least one of which has at least one insertion end which is inserted, in particular in place of a core, at least portion-wise between other longitudinal elements, wherein the person transporting wire rope and/or the stranded longitudinal elements are at least largely free of a sheathing that at least partially encompasses the person transporting wire rope and/or at least one stranded longitudinal element, wherein the insertion end has a length of at most 50*d.
2. The rope portion as claimed in claim 1, wherein the longitudinal elements have in each case at least one insertion end having a length of at most 50*d.
3. The rope portion as claimed in claim 1, wherein an overall length of regions having insertion ends is at most 100*N*d, wherein N is a number of longitudinal elements of the rope.
4. The rope portion as claimed in claim 1, wherein the splice has an overall length of at most 100*N*d, wherein N is a number of longitudinal elements of the rope.
5. The rope portion as claimed in claim 1, wherein the splice has at least one intermediate region which is disposed between insertion ends and which contains at least a portion of a core and/or of an, in particular non-metallic, substitution element.
6. The rope portion as claimed in claim 1, wherein the splice comprises at least one splice location which has at least two insertion ends that are inserted in opposite directions, and has at least one insert element with at least one accommodation region which is configured for at least partially receiving the insertion ends inserted in opposite directions.
7. The rope portion as claimed in claim 1, wherein the insertion end has an undulation, the amplitude thereof corresponding to at least 0.5% and/or at most 20% of an amplitude of an undulation of the longitudinal element.
8. The rope portion as claimed in claim 1, wherein the splice has at least one further insertion end which has a length that is different from that of the insertion end.
9. A rope which realizes a person transporting wire rope, having at least one longitudinal element which is configured for implementing at least one insertion end of at least one splice, embodied as a long splice, of a rope portion as claimed in claim 1.
10. A rope which realizes a person transporting wire rope, in particular an endless rope, having at least one rope portion as claimed in claim 1.
11. A use of a rope as claimed in claim 10 as a haul rope and/or as a traction rope, in particular in a passenger cableway, advantageously in a mountain cable car and/or in an urban street car.
12. A method for splicing a rope that forms a person transporting wire rope, having a diameter d, preferably for producing an endless rope, in particular a rope as claimed in claim 9, advantageously for a passenger cableway, for example a mountain cable car and/or an urban street car, which has a plurality of stranded longitudinal elements, wherein the person transporting wire rope and/or the stranded longitudinal elements are at least largely free of a sheathing that at least partially encompasses the person transporting wire rope and/or at least one stranded longitudinal element, wherein, for producing at least one splice that is embodied as a long splice, at least one end region of at least one of the longitudinal elements is inserted as an insertion end, in particular in place of a core, between other longitudinal elements over a length of at most 50*d.
13. The method as claimed in claim 12, wherein the splice embodied as a long splice is fabricated in one piece, in particular without an advancement of the splice in an incomplete state, in a region having a length of at most 1200*d.
Description
DRAWINGS
[0051] Further advantages are derived from the following description of the drawings. Exemplary embodiments of the invention are illustrated in the drawings. The drawings, the description, and the claims include numerous features in combination. A person skilled in the art will expediently also consider the features individually and combine them to form further meaningful combinations.
[0052] In the figures:
[0053]
[0054]
[0055]
[0056]
[0057]
[0058]
[0059]
[0060]
[0061]
[0062]
[0063]
[0064]
[0065]
[0066]
DESCRIPTION OF THE EXEMPLARY EMBODIMENTS
[0067]
[0068] The rope 12a in the present case is a wire rope, in particular a steel rope. However, the rope 12a, at least portion-wise, can be implemented as a plastics material rope and/or a composite material rope, or the like. The rope 12a has at least one rope portion 10a having at least one splice 14a. The splice 14a in the present case is a long splice. The splice 14a in the present case is moreover a wire rope splice. The splice 14a, at least portion-wise, is in particular implemented in the manner of a long splice. The rope 12a is an endless rope. The rope 12a is in particular an endless rope that is spliced by means of the splice 14a. The rope 12a is implemented so as to be free of a sheathing encompassing the rope.
[0069]
[0070]
[0071] The longitudinal elements 16a-26a in the present case are implemented so as to be at least substantially mutually identical, or mutually identical. The longitudinal elements 16a-26a have in particular at least substantially identical, or identical, cross section. Moreover, the longitudinal elements 16a-26a can have at least substantially identical, or identical, lay lengths and/or lay directions. The rope 12a can be a regular lay rope, and preferably is a Langs lay rope. In principle, it is conceivable for the rope portion 10a and/or the rope 12a to have differently implemented longitudinal elements 16a-26a which differ, for example, in terms of a cross section, a material, a tensile strength, a lay length, a lay direction, or the like. The longitudinal elements 16a-26a are implemented so as to be free of a sheathing encompassing at least one of the longitudinal elements 16a-26a.
[0072] The rope 12a, and also in the present case at least one peripheral region of the rope portion 10a, have a core 94a. The core 94a can at least in part be implemented from plastics material, for example. The longitudinal elements 16a-26a are disposed about the core 94a, in particular at regular spacings. The longitudinal elements 16a-26a run in particular in a spiral manner about the core 94a. The longitudinal elements 16a-26a are stranded around the core 94a.
[0073] The core 94a in the present case has a cross section which is larger than a cross section of the longitudinal elements 16a-26a. Moreover, the core 94a advantageously has a cross section having segment-shaped clearances and/or impressions for the longitudinal element 16a-26a, said clearances and/or impressions advantageously following a spiral profile around the core 94a, in accordance with a stranding of the longitudinal elements 16a-26a.
[0074] The longitudinal elements 16a-26a are advantageously disposed about the core 94a in such a manner that said longitudinal elements 16a-26a are without mutual contact at least outside the splice 14a. In particular, the longitudinal sides of the longitudinal elements 16a-26a are disposed without mutual contact, at least outside the splice 14a. Additionally, it is conceivable for longitudinal inserts to be disposed between the longitudinal elements 16a-26a, said longitudinal inserts in particular running about the core 94a so as to be parallel with said longitudinal elements 16a-26a and advantageously establishing a spacing between the longitudinal elements 16a-26a. Longitudinal inserts of this type are advantageously implemented from a material that is softer than that of the longitudinal elements 16a-26a, for example from plastics material, rubber, a composite material, or the like. Moreover, the rope 12a, or the rope portion 10a, respectively, and/or at least one, in particular a plurality, or else all, of the longitudinal elements 16a-26a can have at least one coating, for example an anti-corrosion coating and/or a plastics material covering, or the like.
[0075] The rope portion 10a and in particular the rope 12a have a diameter d. In particular, the diameter d corresponds to a diameter of a smallest circle encompassing the rope portion 10a, in particular the cross section thereof. The rope 12a in the present case is a round rope, in particular a circular rope. However, it is also in principle conceivable for the rope 12a to be polygonal or elliptic. In the present case, for example, the diameter d can be 70 mm, wherein any other diameters are conceivable, as mentioned above.
[0076]
[0077] At least one of the longitudinal elements 16a has at least one insertion end 28a which at least portion-wise is inserted between other longitudinal element 16a-26a. The insertion end 28a is inserted between the longitudinal elements 16a-26a in place of the core 94a.
[0078] In the present case, all of the longitudinal elements 16a-26a have in each case two insertion ends 28a-50a. The insertion ends 28a-50a are inserted in the manner of a long splice, in place of the core 94a. The splice 14a comprises in particular twelve insertion ends 28a-50a, wherein another number of insertion ends is conceivable, in particular in the case of a rope having a number of longitudinal elements deviating from six.
[0079] The rope portion 10a in the peripheral regions thereof has the portions 114a, 116a of the core 94a. The portions 114a, 116a of the core 94a in the present case delimit the splice 14a.
[0080] The insertion end 28a has a length of at most 50*d. The insertion end 28a in the present case, for example, has a length of 40*d, wherein other lengths are also conceivable, as has been mentioned above.
[0081] Furthermore, the longitudinal elements 16a-26a have in each case at least one insertion end 28a-50a having a length of at most 50*d. Each of the longitudinal elements 16a-26a in the case shown has two insertion ends 28a-50a having a length of at most 50*d, for example having in each case a length of 40*d.
[0082] The splice 14a has at least one splice location 84a.
[0083] The insertion ends 28a, 38a in the present case extend in each case from a center 122a of the splice knot 120a up to the inserted ends of said insertion ends 28a, 38a, said inserted ends not being illustrated in
[0084] The insertion end 28a has an undulation of which the amplitude corresponds to at least 0.5% and/or at most 20% of an amplitude of an undulation of the longitudinal element 16a-26a, in particular outside the splice location 84a. For example, the amplitude of the undulation of the insertion end 28a can be 2%, wherein other values are also conceivable, as has been mentioned above. The undulation of the insertion element 28a is generated from the undulation of the longitudinal element 16a, in particular by virtue of the stranding of the latter, by stretching and/or straightening the longitudinal element 16a. The undulation of the insertion end 28a, by virtue of the schematically straight illustration thereof, is not shown in
[0085] The splice location 84a in the present case moreover has at least one insert element 86a which is configured for at least partially receiving the insertion ends 28a, 30a inserted in opposite directions. The insert element 86a in
[0086] The insert element 86a has at least one accommodation region 88a which is configured for at least partially receiving the insertion ends 28a, 30a inserted in opposite directions. The accommodation region 88a is realized as a channel-type depression. The accommodation region 88a is in particular configured for at least partially receiving two longitudinal elements 16a-26a that are placed so as to form a splice knot 120a. The accommodation region 88a along the longitudinal direction thereof can have a variable cross section.
[0087] The insert element 86a has at least one further accommodation region 124a which is configured for at least partially receiving a longitudinal element 16a-26a. In the present case, the insert element 86a has a plurality of further accommodation regions 124a of which only one is provided with a reference sign for reasons of clarity. The insert element 86a advantageously has N1 further accommodation regions 124a. In a region of the splice knot 120a, the insert element 88a is placed between the longitudinal element 16a-26a in place of the core 94a. The insert element 88a is in particular realized in such a manner that a diameter of the rope portion 10a in the region of the splice location 84a and in particular in a region of the splice knot 120a is at most 8% and advantageously at most 5% larger than a nominal diameter of the rope 12a.
[0088] The insert element 86a advantageously has a length which corresponds to at least a length of the splice knot 120a. The accommodation region 88a is preferably configured for receiving the insertion ends 28a, 38a, or longitudinal elements 16a-26a that form the splice knot 120a, respectively at least over a length of a portion of said insertion ends 28a, 38a, or of said longitudinal elements 16a-26a, respectively, that is disposed on the surface of the splice 14a.
[0089] Reference hereunder is made yet again to
[0090] Furthermore, an overall length of a region 76a having insertion ends 28a-50a is at most 100*N*d. In the present case, an overall length of the region 75a having insertion ends 28a-50a corresponds to the overall length of the splice 14a. The splice 14a is in particular free of regions, in particular having a length of at least 10*d, without insertion ends 28a-50a.
[0091] The splice 14a has a plurality of splice locations 84a, 104a-112a, which are disposed at at least substantially regular spacings. In the present case, all of the splice locations 84a, 104a-112a of the splice are disposed at regular spacings. Spacings between directly adjacent splice locations 84a, 104a-112a, are in each case at least substantially identical, or identical, in particular by virtue of an identical length of the insertion ends 28a-50a.
[0092] The splice 14a has a number of 2*N2, in the case shown, which is to be understood to be purely exemplary, has a number of ten longitudinal element end regions 52a-70a which are in each case disposed in a close range of at least another longitudinal element end region 52a-70a. The longitudinal element end regions 52a-70a in the present case are in each case disposed so as to be mutually adjacent in pairs. A spacing between adjacent longitudinal element end regions 52a-70a herein is advantageously at most 10*d and particularly advantageously at most 5*d. Furthermore, the splice locations 84a, 104a-112a are disposed so as to be mutually adjacent.
[0093] The longitudinal element end regions 52a-70a are end regions of insertion ends 26a, 28a, 32a-48a. All of the non-peripheral insertion ends 26a, 28a, 32a-48a in the case shown have in each case one of the 2*N2 longitudinal element end regions 52a-70a.
[0094] The splice 14a furthermore has at least one peripheral longitudinal element end region 126a. The peripheral longitudinal element end region 126a is an end region of a peripheral insertion end 30a. The peripheral longitudinal element end region 126a is disposed in a close range of the core 94a. In particular, the peripheral longitudinal element end region 126a is disposed so as to be directly adjacent to the core 94a. Furthermore, the splice 14a in the present case has at least one further peripheral longitudinal element end region 128a. The peripheral longitudinal element end region 126a and the further peripheral longitudinal element end region 128a are disposed on opposite sides of the splice 14a, in particular in relation to the longitudinal direction 118a of the rope portion 10a.
[0095]
[0096] The splice 14a in the present case has at least one distance element 130a. The distance element is disposed between the longitudinal element end regions 56a, 58a, in particular in an interior of the splice 14a and advantageously in place of the core 94a. The distance element 130a in the present case is implemented from plastics material. Alternatively or additionally, however, other materials such as, for example, rubber, soft metals, composite materials, fiber-composite materials, and the like are also conceivable.
[0097] The adjacent longitudinal element end regions 56a, 58a are directly contiguous to the distance element 130a. A gap 132a, 134a which in the event of a tensile load and/or a bending load on the splice 14a can at least temporarily expand is in each case disposed between the distance element 130a and the adjacent longitudinal element end regions 56a, 58a. By virtue of the distance element 130a, two smaller gaps 132a, 134a are created instead of one larger gap in this case by virtue of a a relative movement of the adjacent longitudinal element end regions 56a, 58.
[0098] In the present case, one distance element 130a is in each case disposed between in each case two adjacent longitudinal element end regions 52a-70a of the 2*N2 longitudinal element end regions 52a-70a that are adjacent in pairs. However, the distance elements 130a are not illustrated in
[0099] In principle, it is likewise conceivable that adjacent longitudinal element end regions 52a-70a are disposed so as to be directly mutually adjacent, in particular without a distance element being disposed therebetween. In this case in particular a spacing between adjacent longitudinal element end regions 52a-70a can be less than 1*d and advantageously at most a few millimeters, in particular in a non-stressed state of the splice 14a.
[0100] At least one insertion end 28a of the splice 14a in the present case is moreover sheathed with a sheathing material 136a. The sheathing material 136a can be a splicing tape, for example. The insertion end 28a is advantageously sheathed with the sheathing material 136a in such a manner that the diameter of said insertion end 28a is enlarged in such a manner that said diameter corresponds at least substantially to a diameter of the core 94a. The longitudinal elements 16a-26a that encompass the insertion end 28a correspondingly clamp the latter in such a manner that a sufficient extraction force is guaranteed. In the present case, all of the insertion ends 28a-50a of the splice 14a are sheathed with sheathing material 136a.
[0101]
[0102] The test insertion end 100a is advantageously implemented so as to be identical to insertion ends 28a-50a of the splice 14a. However, the test insertion end 100a can be inserted thereinto from one end of the test rope piece 98a, and not laterally at a splice location. In principle however, it is also conceivable for the test rope piece 98a to comprise at least one portion of a test splice, or an entire test splice.
[0103] The test insertion end 100a in the test attempt is under a tensile load. Moreover, the test attempt is carried out while the test rope piece 100a is under a tensile load. The test insertion end 100a in the test attempt is capable of being bent without damage at least 1000 times about a test disk 102a having a diameter of at most 80*d.
[0104] In the present case, the test insertion end 100a is capable of being bent, for example, at least 2000 times about in each case at least 90 and advantageously about in each case at least 150. Moreover, the diameter of the test disk can advantageously be at most 60*d, or at most 40*d. A revolving of the splice 14a about a drive pulley of a ropeway can be simulated by the test attempt, for example. The insertion ends 28a-50a of the splice 14a are realized in such a manner that a test insertion end 100a that is implemented identically to said insertion ends 28a-50a survives the described test attempt without damage.
[0105] The test rope piece 98a in the test attempt is pretensioned by way of a pretensioning force of at least 60 N/mm2 per cross-sectional area A. The test rope piece 98a in the test attempt is advantageously pretensioned by way of a pretensioning force of particularly preferably at least 500 N/mm2 per cross-sectional area.
[0106] The test insertion end 100a in the test attempt withstands an extraction force in kN of at least d.sup.2*0.68/N*0.1. The test insertion end 100a advantageously withstands an extraction force of at least d.sup.2*0.68/N*0.2, and particularly advantageously of at least d.sup.2*0.68/N*0.4. In the present case, each of the insertion ends 28a-50a of the splice withstands a correspondingly high extraction force.
[0107]
[0108] In the second method step 140a, the splice 14a is advantageously fabricated in one piece in a region 96a having a length of at most 1200*d (cf. also
[0109]
[0110] In the second method step 144a, the splice 14a is advantageously fabricated in one piece in a region 96a having a length of at most 1200*d (cf. also
[0111] Further exemplary embodiments of the invention are shown in
[0112]
[0113] An overall length of regions 76b, 78b having insertion ends 28b is at most 100*N*d. In the present case, the splice 14b has a first region 76b and a second region 78b having insertion ends 28b of which only one is provided with a reference sign for reasons of clarity. The first region 76b and the second region 78b can comprise an identical number of insertion ends 28b. The first region 76b in the present case comprises N insertion ends. Furthermore, the second region 78b in the present case likewise comprises N insertion ends. The first region 76b and the second region 78b are disposed so as to be mutually spaced apart in the longitudinal direction 118b of the rope portion 10b.
[0114] The splice 14b has at least one intermediate region 80b that is disposed between insertion ends 28b. The intermediate region 80b contains at least a portion 82b of the core 94b and/or of a substitution element 148b. The intermediate region 80b in the present case comprises a substitution element 148b which is advantageously implemented from plastics material or another suitable material. The substitution element 148b is configured to substitute the core 94b in the intermediate region 80b. For example, the substitution element 148b can have a cross section and/or a cross-sectional profile which corresponds to that of the core 94b. Alternatively, an in particular previously severed portion of the core 94b could be inserted into an interior of the splice 14b, instead of the substitution element 148b in the intermediate region 80b.
[0115] An overall length of the splice 14b is composed of a sum of the overall length of the regions 76b, 78b having insertion ends, and of a length of the intermediate region 80b. In one aspect of the invention it is conceivable for the splice 14b to have an overall length of, for example, N*200*d, in particular of 1200*d, or even a larger overall length. The splice 14b advantageously has an overall length of at most N*100*d.
[0116]
[0117] The splice 14c in the present case comprises a number of insertion ends 28c that is less than 2*N. For reasons of clarity, only one of the insertion ends 28c in
[0118] It is also conceivable for at least one of the insertion ends 28c to have a length of more than 50*d. It is in particular conceivable that the insertion ends 28c have in each case a length of at most N*100*d/M, wherein M is a number of insertion ends 28c. It is moreover conceivable for any other, advantageously even, number of longitudinal element end regions 52c-58c to lie so as to abut on the surface of the splice 14c and to advantageously not be inserted.
[0119]
[0120] The splice 14d has at least one further insertion end 30d which has a length that is different from that of the insertion end 28d. The further insertion end 30d in the present case is longer than the insertion end 28d. For example, the splice 14d can have insertion ends 28d, 30d, the length thereof decreasing toward the peripheries of the splice 14d. Likewise, any other distribution of lengths of insertion ends 28d, 30d is conceivable.
[0121] The splice 14d has a plurality of splice locations 84d, 104d-112d, which are disposed at irregular spacings. In the present case, the irregular spacings are established by differing lengths of the insertion ends 28d, 30d. However, it is also conceivable that distance elements of differing lengths are placed between insertion ends 28d, 30d, in particular between insertion ends of identical length, so as to generate differing spacings between splice locations 84d, 104d-112d.