DEVICE FOR DETERMINING PARAMETERS OF A WIRE ROPE AND / OR A WIRE ROPE GUIDE, IN PARTICULARLY FOR DETERMINING WEAR PARAMETERS AND / OR GEOMETRIC PARAMETERS

Description

[0001] The invention relates to a device for determining parameters of a wire rope and / or a wire rope guide, in particular for determining wear parameters and / or geometric parameters, wherein the device comprises at least two interconnected legs, wherein at least one of the at least two legs has at least two arc-shaped cutouts which are configured for determining the parameters of the wire rope, wherein the diameter of the first cutout corresponds to the nominal diameter of an unworn wire rope and the diameter of the second cutout corresponds to the diameter of a wire rope taken from ISO 4309 (version: 11 / 2017) that is ready for disposal to a certain degree, wherein each arc-shaped cutout is provided with a corresponding applied inscription, making it possible to infer a wear condition of the wire rope.

[0002] Wire ropes are known from the prior art, for example, from elevators or cranes. Typically, when used in an elevator or crane, a wire rope is deflected by at least one pulley or wound onto and unwound from a drum. The pulley and drum are adapted to the size of the wire rope, in particular its diameter.

[0003] Wear parameters for wire ropes include, in particular, changes to the cross-section of the rope, especially its diameter, or changes to its surface, from which, for example, broken wires forming the wire rope may protrude.

[0004] Wear parameters in rope guides such as pulleys or drums can include geometric changes to the drum or pulley in the areas where it contacts the wire rope being guided. For example, if a pulley is worn, a wire rope guided in it would be guided in a groove that is too narrow and thus be pinched circumferentially, resulting in increased wear compared to a pulley that is not worn or less worn.

[0005] Other parameters of a wire rope can include its nominal diameter d0. It is understood that the actual diameter of a new, unused rope may deviate from the nominal diameter d0 due to manufacturing tolerances. For example, for a wire rope with a nominal diameter d0 of more than 8 mm, a tolerance between 0% and +5% relative to the nominal diameter d0 is still within the scope of the standard (see standard DIN EN 12385-4; version: June 2008).

[0006] Devices for determining wire rope parameters are known from the prior art, for example from DE 20 2015 101 747 U1 or DE 601 17 410 T2.

[0007] Measuring devices are known from US 2022 / 0074726 A1, US 2007 / 0276475 A1 and DE 195 38 371 A1.

[0008] Standards exist that allow the wear condition of a wire rope to be determined based on wire rope parameters. From these wire rope parameters, it can be deduced whether and when the wire rope is ready for disposal, or is ready for disposal to a certain degree.

[0009] For example, ISO 16625 ("Cranes and hoists - Selection of wire ropes, drum and sheaves"; as of July 2013) deals with drum and sheave grooves and defines a range within which a groove depth or groove diameter should lie.

[0010] ISO 16625 also deals with an opening angle of a pulley that should be maintained in order to guide a wire rope guided by the pulley over the pulley with minimal twisting.

[0011] An angular deviation from a straight entry of the wire rope into the pulley, that is, an entry parallel to the longitudinal direction of the wire rope, is described by the so-called deflection angle. With large deflection angles, the rope can roll around its longitudinal axis from the pulley flanks into a pulley groove, causing an undesirable twist that wears down the wire rope. Such twisting can be counteracted, for example, by a large opening angle of the pulley.

[0012] The larger the opening angle, the less twisting the wire rope can be when used with the pulley.

[0013] Other relevant standards from which wire rope parameters can be derived that allow a deduction of a wear condition are DIN 15061-1 ("Groove profiles for rope pulleys"; as of August 1977) and DIN 15061-2 ("Groove profiles for rope drums", as of August 1977).

[0014] DIN ISO 4309 ("Cranes - Wire ropes - Maintenance, inspection and disposal", August 2021 edition) and ISO 4309 (November 2017 edition) specify diameter changes for various rope types, which can be used to determine wear, such as when a rope is ready for disposal. These standards also address determining the disposal status of a wire rope based on the number of broken wires. For example, if more wire breaks are found on a reference length of the wire rope, which is six times its nominal diameter d0, than is permissible according to ISO 4309 or DIN ISO 4309, the rope is 100% ready for disposal and must be replaced immediately to reliably prevent failure during further use.

[0015] Other relevant standards from which wear parameters and / or geometric parameters that can be determined with a device according to the invention can be derived are DIN EN 14492-2 (as of September 2019), ASME B30.30 (as of 2019), DIN 15020-1 (as of February 1974), DIN 13001-3-2 (as of October 2015), DIN EN 12385-1 (as of January 2009), DIN EN 12385-5 (as of January 2022), DIN EN 12385-6 (as of May 2004), BS 6570 (as of 1978), AS 2759 (as of 2004), MDG 33.1 (as of 2011) and SABS 0294 (as of 2020).

[0016] If wire rope or wire rope guide parameters known from the aforementioned standards are determined on a wire rope or a wire rope guide device, it is advantageous to determine a wear condition of the wire rope or the wire rope guide device.

[0017] For example, if it is determined that the diameter of the wire rope has been reduced to such an extent that a standardized limit value for the wire rope diameter, which allows a statement about a wear condition such as the discard criterion, is undercut, the wire rope must be replaced with a new one.

[0018] The invention is based on the objective of creating a device for determining parameters of a wire rope and / or a wire rope guide, by which relevant standardized geometric parameters can be determined that indicate a wear condition of the wire rope and / or the wire rope guide, and which can display the wear condition to a user of the device in a simple manner.

[0019] According to the invention, the problem is solved by the features of claim 1.

[0020] By providing at least two interconnected legs, a device is created that is suitable for determining several relevant wire rope parameters and advantageously enables a user to easily determine the wire rope parameters.

[0021] A separate device is required for each combination of a wire rope with a nominal diameter d 0 and an associated wire rope guide, which is preferably a pulley or drum, since in particular standardized wear parameters and / or geometric parameters of the wire rope or of a wire rope guide depend on a nominal diameter d 0 of the wire rope.

[0022] The legs are specifically designed in the manner of a guideline, which makes it possible to determine whether parameters are within or outside the intervals of the relevant norm.

[0023] It is understood that a device according to the invention is exclusively mechanical in design. Electrical or electronic components are not required.

[0024] Advantageously, at least two legs are designed individually or jointly for determining the parameters and are pivotably connected to each other. A particularly easy-to-use device is advantageously designed. Each leg can be designed for a specific, standard-compliant determination of wire rope parameters or wire rope guide parameters, in particular wear parameters and / or geometric parameters.

[0025] In one embodiment of the invention, the at least two legs are each elongated and pivotably connected to each other at one end section. An advantageous feature of a device according to the invention is its particularly easy storage, as the legs can be folded together like a pocket knife. The end sections, at which the two legs can be pivotably connected to each other, can be configured to determine parameters of the wire rope or the wire rope guide.

[0026] The at least one cutout has a circular arc-shaped section, wherein a diameter of the circular arc-shaped section corresponds to a wire rope diameter at which the wire rope, whose parameters are to be determined, is ready for disposal.

[0027] Discardable means that the wire rope is ready for discard to a certain degree, expressed as a percentage. To indicate to a user of a device according to the invention the degree of discardability, which can be determined with the cutout, a marking can be applied to the leg, e.g., "100% discardable" for a discardability of 100%. Discardability grades of 20% (slight), 40% (medium), 60% (high), 80% (very high), and 100% (discard), as well as corresponding wire rope diameters, are known from standards. The cutout itself can be semicircular. It is conceivable that the cutout is incorporated laterally into the first of the at least two legs.

[0028] In standard ISO 4309 (November 2017 edition), Table 5 assigns different diameters to various wire rope types at specific wear conditions. For example, a low-twist, used wire rope is ready for disposal and must be replaced when its diameter, also referred to as the current or measured diameter, decreases by at least 5% compared to the diameter of the wire rope at the start of its use. In this example, the diameter of the arc-shaped section is 0.95 times the original diameter of the wire rope, for whose parameter determination the device according to the invention is provided. For the sake of simplicity, it is assumed for the purposes of the above explanation that the manufacturing tolerance is ±0%.

[0029] The diameter of the circular arc section corresponds to a diameter taken from the aforementioned standard at which the wire rope has reached a certain degree of wear. A rope that has reached a wear level of 100% should be replaced immediately, while a rope with a wear level of, for example, 60% can still be used.

[0030] The at least one cutout has a circular arc-shaped section, wherein a diameter of the circular arc-shaped section corresponds to an original diameter of the wire rope.

[0031] It is understood that the diameter of the circular arc section can correspond to a nominal diameter d0. In this case, the original wire rope diameter corresponds to the nominal diameter d0.

[0032] It is conceivable that the diameter of the cutout corresponds to the nominal diameter d0 plus a manufacturing tolerance. This tolerance could, for example, be specified by a user of the wire rope or lie within a range of 0% to +5% of the nominal diameter d0. In this case, the original rope diameter corresponds to the nominal diameter d0 plus the manufacturing tolerance.

[0033] The cutout itself can be semicircular. It is conceivable that the cutout is inserted laterally into one of the first of at least two legs.

[0034] One of the at least two legs has two cutouts, each with a circular arc section, wherein a diameter of a circular arc section of a first cutout corresponds to an original diameter of the wire rope and a diameter of a circular arc section of a second cutout corresponds to a diameter at which the wire rope is ready to be discarded.

[0035] In particular, the cutouts can be arranged on opposite sides of the first of at least two legs. It is conceivable that each of the cutouts is semicircular. Advantageously, this creates a device with which a particularly large number of parameters can be determined.

[0036] In the DIN ISO 4309 standard from 2021, Table 5 assigns different diameters to various rope types at specific wear states. For example, a low-twist, used wire rope is considered ready for disposal and must be replaced when its diameter, also referred to as the current or measured diameter, decreases by at least 5% compared to the diameter of the wire rope at the start of its use. While the first arc-shaped section has a diameter corresponding to the original diameter of the wire rope, which would be suitable for continued use with only slight or no wear, the second section has a diameter corresponding to the wire rope diameter at which the wire rope is considered ready for disposal to a certain degree. This degree of readiness for disposal was taken from the aforementioned standard.

[0037] It goes without saying that other standards can be used to determine the size of the cutout, for example the other standards mentioned at the beginning.

[0038] It is understood that the diameter of the first arc-shaped section can correspond to a nominal diameter d0. In this case, the original rope diameter corresponds to the nominal diameter d0.

[0039] It is conceivable that the diameter of the first cutout corresponds to the nominal diameter d0 plus a manufacturing tolerance. This tolerance could, for example, be specified by a user of the wire rope or lie within a range of 0% to +5% of the nominal diameter d0. In this case, the original rope diameter corresponds to the nominal diameter d0 plus the manufacturing tolerance.

[0040] To determine when a wire rope needs to be discarded, its parameters are to be determined and inserted into the first cutout. If the wire rope fits precisely, there is no change in diameter that would justify discarding.

[0041] If the wire rope is inserted into the second cutout and fits precisely, the wire rope is worn and, depending on the size of the second cutout, is either 100% ready for disposal or only 20%, 40%, 60%, or 80% worn. The values ​​for the diameter of the first and second cutouts can be found, for example, in the aforementioned standard DIN ISO 4309, which forms the basis for the design of a device according to the invention, provided that the device is manufactured according to the parameters of DIN ISO 4309.

[0042] If, for example, the wire rope does not fit into the second cutout, its diameter is larger than the standardized limit for discard. Consequently, the wire rope can continue to be used safely.

[0043] In one embodiment of the invention, one of the at least two legs has an end section with a marking, wherein the end section is configured to determine a depth of the wire rope guide, preferably a sheave depth or a drum depth. The marking can, for example, be provided in the leg as an indentation, in particular a lateral indentation.

[0044] Instead of an indentation, a print on the thigh is conceivable.

[0045] For depth determination, the end section of the leg can have a rounded shape designed to fit against a groove of a pulley or drum, as well as a lateral notch.

[0046] The rounded end section is geometrically designed so that it can be used as a gauge to measure the depth of the wire rope guide. The lateral notch serves as an indicator and can, for example, show the depth required according to the standard (DIN 15061-1 and -2; August 1977 edition). This allows the user to easily see when the minimum groove depth has been undershot and the wire rope guide needs to be replaced.

[0047] If the wire rope guide is heavily worn, a visible gap may form, for example, between the end section, which may be convex, and the wire rope guide.

[0048] Advantageously, one of the at least two legs has a semicircular end section, wherein a diameter of the semicircular end section corresponds to a groove diameter of a wire rope guide, wherein the groove diameter of the wire rope guide corresponds to 1.04 to 1.11 times a nominal diameter d 0 of a wire rope guided over the wire rope guide.

[0049] According to standards, for example ISO 16625 (as of July 2013), limit values ​​are specified for pulleys and rope drums, which determine when a pulley or rope drum should no longer be used as a wire rope guide.

[0050] The semicircular end section is designed for placement in a groove of a wire rope guide and is designed for the respective wire rope diameter guided by the wire rope guide in accordance with the aforementioned ISO 16625.

[0051] It is conceivable that each of the at least two legs has a semicircular end section, which is set up to determine two different limit values ​​for a groove diameter.

[0052] In one embodiment of the invention, at least one of the two legs has a display means comprising several markings, by which an angle formed between the two legs, which is set up to determine an opening angle of the wire rope guide means, can be displayed.

[0053] Three lateral indentations may be incorporated into one of the at least two legs, indicating, for example, an angle between the two legs of 30°, 45° or 60°.

[0054] Instead of an indentation, a print on the thigh is conceivable.

[0055] According to standards, such as ISO 16625 (July 2013 edition) and DIN EN 13135, the opening angle of sheaves must be measured at the sheave flanks. The elongated design of the pivotally connected legs allows them to be positioned against the sheave flanks to determine the opening angle. The markings then indicate whether the opening angle meets the standard.

[0056] In a further embodiment of the invention, the at least one cutout is formed in the shape of a circular arc, in particular semicircular, and is inserted into an end section of a first of the at least two legs, wherein the end section is arranged to at least partially encompass the wire rope in the circumferential direction during a movement in a wire rope longitudinal direction.

[0057] By partially gripping the wire rope, preferably without creating a gap between the cutout and the wire rope, a wire break, which appears as a protrusion from a wire rope surface, can be detected, since when the leg moves in the longitudinal direction of the rope, the end section gets caught on the protrusion.

[0058] It is advantageous that the number of broken wires in the wire rope can be easily determined.

[0059] Advantageously, a display means is provided which includes two spaced-apart markings, the distance of which corresponds to six times a nominal diameter d 0 of the wire rope whose parameters are to be determined.

[0060] The maximum number of wire breaks in a wire rope that leads to its discard criteria is specified, for example, in the standard DIN ISO 4309. This is determined by counting broken wires on a wire rope surface over a reference length that corresponds to six times the nominal rope diameter.

[0061] The additional indicator can, for example, comprise two lateral notches, a first of which is located in the first of the at least two legs and a second of which is located in the second of the at least two legs. In order to determine the reference length, the two legs must be pivoted into a position in which their longitudinal axes are coaxial.

[0062] It is conceivable that the additional display means might, for example, have two lateral indentations that are incorporated into one of the at least two legs.

[0063] It goes without saying that other marking designs are conceivable. Instead of an indentation, a print on the thigh(s) is conceivable.

[0064] In one embodiment of the invention, the device comprises three legs. A device with three legs has proven particularly advantageous for determining all relevant parameters, especially wear parameters, of a combination of a wire rope and a wire rope guide. This results in a particularly compact device.

[0065] In a further embodiment of the invention, the at least two legs are made of plastic or metal.

[0066] Legs made of metal are particularly stable and durable, while legs made of plastic are particularly lightweight.

[0067] Advantageously, each of the at least two legs is configured to determine several different parameters of the wire rope and / or the wire rope guide. A particularly compact device, similar to a gauge, is thus created, with which all parameters, especially wear parameters, can be determined easily. No further auxiliary or measuring devices are required.

[0068] The invention is explained in more detail below with reference to exemplary embodiments and the accompanying drawings relating to these embodiments. The drawings show: Fig. 1 An embodiment of a device according to the invention in several different leg positions for determining standard-compliant wire rope and wire rope guide element parameters, Fig. 2 a further embodiment of a device according to the invention with three legs.

[0069] A in Fig. 1a The device 1 shown in a perspective top view on a front side for determining wire rope parameters of a wire rope with a nominal diameter d 0 of 16 mm comprises two elongated legs 2, 3 which are pivotably connected to each other at a first end section 4.

[0070] A first leg 2 comprises two semicircular sections 5, 6 with cutouts 7, 8, which are inserted into the leg 2 on opposite sides of the leg 2, spaced apart from each other in the longitudinal direction.

[0071] A first semicircular section 5 is designed to determine the diameter of an unworn wire rope, while a second semicircular section 6 is designed to determine the diameter of a wire rope that is already 80% ready for disposal ("80% ready for disposal"). The diameter value for the second section is taken from DIN ISO 4309 for this embodiment. The diameter of the first semicircular section 5 corresponds to a maximum diameter that deviates from the nominal wire rope diameter d0 by a manufacturing tolerance of +4%. In this embodiment, the diameter of the first section 5 is 16.64 mm.

[0072] It is understood that other manufacturing tolerances, which are usually specified by a wire rope user, are conceivable, preferably those between 0% and +5% based on the nominal diameter d0.

[0073] A second end section 9 of the first leg 2, facing away from the first end section 4, has a semicircular curve 10, which is used to determine a groove diameter of a rope drum guiding the wire rope (see Fig. 1i ) or pulley (see Fig. 1f-1h ) is set up.

[0074] A second leg 3 has three lateral indentations 11-13 in an area around the end section 4, which are used to determine an opening angle of a pulley as in Fig. 1b are shown as set up.

[0075] An end section 14 of the second leg 3, facing away from the first end section 4, has a semicircular curve 15, which is used to determine a groove diameter of a pulley or a rope drum according to Fig. 1f bis 1i is set up, wherein the end section 14 in this embodiment is different from the end section 9.

[0076] Furthermore, the end section 14 has three further lateral notches 16-18, of which notches 16 and 18 are used to determine a standard-compliant groove depth of a rope pulley or rope drum according to Fig. 1j and 1k are suitable.

[0077] The lateral notch 17 in the second leg 3 and a lateral notch 19 in the first leg 2 are provided for determining a reference length on a wire rope, wherein the reference length is six times the nominal wire rope diameter (explanation "6xØ" in the area of ​​the notches 17, 19 in Fig. 1b ) corresponds and according to Fig. 1l is determined.

[0078] In a Fig. 1b In a schematically shown sectioned side view of the pulley 20, a device 1 according to the invention, shown in a top view of a rear side, is used to determine a pulley opening angle. Legs 2, 3 abut opposite pulley flanks 21, 22. In this embodiment, an opening angle is 45 degrees, which is determined by leg 2, which in a top view abuts the lateral notch 12 according to Fig. 1b is displayed.

[0079] In Fig. 1b Furthermore, explanations of the respective notches are printed on legs 2 and 3. For example, the explanation "Drum Depth" indicates to the user of device 1 that the lateral notch 16 is for determining a standard-compliant groove depth of a rope drum (see figure). Fig. 1j ) is planned.

[0080] In a Fig. 1c In a schematically shown sectioned view, the wire rope 23 is inserted into the first cutout 7 to determine its diameter. Because the wire rope 23 fits into the cutout 7 without gaps, the rope is not worn, and the wire rope diameter corresponds to an original wire rope diameter, i.e., that of an unused wire rope.

[0081] A in Fig. 1d The wire rope 24, shown schematically in a sectional view, is inserted into the second cutout 8 of the leg 2 to determine its wear condition. Because the wire rope 24 fits into the cutout 8 without gaps, it is 80% ready for disposal. The value for the diameter of the semicircular section 6 of the cutout 8 is taken from DIN ISO 4309 in this embodiment. The marking "80% ready for disposal" on the leg 2 immediately indicates to a user of the device 1 that the wire rope 24 is 80% ready for disposal.

[0082] It is understood that the semicircular section 6 may have a different diameter, for example, that for 20%, 40%, 60% or 100% discard maturity.

[0083] A in Fig. 1e The unworn wire rope 23 shown schematically in a cutaway view does not fit into the cutout 8, making it apparent to a user of the device 1 that the discard maturity of 80% selected in this embodiment has not yet been reached.

[0084] Determining a standard-compliant groove diameter for a rope pulley is in Fig. 1f-h explains how to determine a standard-compliant groove diameter for a rope drum in Fig. 1i .

[0085] The in Fig. 1f The device 1, shown in a front view, is used with the end section 14 to determine a groove diameter of a pulley 20 shown in a cutaway view. In this embodiment, the radius 15 of the end section 14 of the leg 3 has a diameter corresponding to 1.05 times the nominal rope diameter d 0, while the radius 10 of the end section 9 of the leg 2 has a diameter corresponding to 1.10 times the nominal rope diameter d 0.

[0086] In this embodiment, a groove diameter that complies with standards is at least 1.05 times the nominal diameter of a wire rope (5% deviation) that is guided in the pulley and at most 1.10 times the nominal diameter of the wire rope (10% deviation).

[0087] At the in Fig. 1f The curvature 15 of the rope pulley 20 shown fits into the rope pulley 20 without gaps, so that the groove diameter of the rope pulley 20 conforms to the standard.

[0088] During a Fig. 1g The curvature 10 of the pulley 25 shown fits into the pulley, however, a gap 26 is formed between the pulley flanks and the curvature 10, which indicates to a user of the device 1 a deviation from the maximum standard groove diameter, i.e., from 1.10 times the nominal diameter d 0 of the wire rope. The in Fig. 1g The pulley 25 shown should therefore be replaced to prevent increased wire rope wear.

[0089] During a Fig. 1h The curve 15 of the pulley 27 shown does not fit into the pulley 27, resulting in a gap 28. This indicates to a user of the device 1 that the pulley 27 is too small to guide a wire rope with the diameter of 16.64 mm selected for this embodiment with minimal wear.

[0090] At the in Fig. 1i In the rope drum 29 shown, the rounded section 15 of the end section 14 of the leg 3 lies flush against the rope drum 29. Thus, the groove diameter of the rope drum 29 conforms to the standard.

[0091] To determine the groove depth (designation "drum depth" on leg 3) of the rope drum 29, a lateral notch 16 is provided, which is located in a Fig. 1j The position shown is approximately flush with a groove 30. If the notch 16 were completely below the groove 30, the cable drum 29 would be worn and should be replaced.

[0092] To determine a standard-compliant depth ("disc depth 1.5xØ") of a pulley 20, the end section 15 is inserted into the pulley 20. If the lateral notch 18 is in the position as shown in Fig. 1k As shown, a pulley depth corresponds to a standard-compliant minimum depth, wherein the end section 15 preferably rests fully against a pulley groove 31.

[0093] In accordance with the standard, the pulley depth in this embodiment is 1.5 times the nominal rope diameter d0. This is shown by the explanation "1.5xØ" printed on leg 3.

[0094] Determining a reference length that corresponds to six times the nominal diameter d 0 and can be used to determine the discard maturity of a rope by means of a number of broken wires 32 of a wire rope 33 shows Fig. 1l .

[0095] For this purpose, facility 1 will be moved to the in Fig. 1l The position shown is brought in which the longitudinal axes of legs 2, 3 are coaxial. The reference length is the length of the wire rope section 34 located between the two lateral notches 17 and 19.

[0096] Reference is now made to Fig. 2 , where identical or equivalent parts have the same reference number as in Fig. 1 are designated and the letter a is appended to the relevant reference number.

[0097] One in Fig. 2 The facility shown, 1a, differs from the one in Fig. 1 shown by the fact that a third leg 35 is provided with an end section 36 which has a semicircular cutout 37.

[0098] The cutout 37 is provided for placement on a wire rope surface 38 of a wire rope 33a with a reference length corresponding to six times the nominal diameter d 0, wherein the cutout 37 preferably partially surrounds the wire rope 33a in the circumferential direction without gaps.

[0099] When the leg 35 is moved in the longitudinal direction of the rope, it gets caught due to broken wires 32a protruding from the wire rope surface 37. Each instance of snagging corresponds to a broken wire, so that the third leg 35 allows the number of broken wires 32a in the wire rope 33a to be determined. This advantageously enables a standard-compliant determination of the discard maturity of the wire rope 33a.

[0100] It is understood that determining the number of broken wires is not limited to the reference length. It is conceivable that a wire rope several hundred meters long could be inspected for wire breaks using device 1a.

[0101] In the aforementioned embodiments, legs 2, 3 and 35 are made of steel.

[0102] It is understood that markings other than lateral indentations on the legs 2, 3 are conceivable, for example printed markings.

[0103] It is also understood that a device 1; 1a according to the invention may be designed in accordance with standards other than the exemplary DIN ISO 4309, for example in accordance with the aforementioned ASME B30.30 or SABS 0294.

Claims

1. Device (1; 1a) for determining parameters of a wire rope (23, 24, 33; 33a) and / or a wire rope guide means (20, 25, 27, 29) guiding the wire rope, in particular for determining wear parameters and / or geometric parameters, wherein the device (1; 1a) comprises at least two legs (2, 3; 2a, 3a, 35) connected to one another, wherein at least one of the at least two legs has at least two circular arc-shaped cutouts (7, 8; 7a, 8a, 37) which are configured to determine the parameters of the wire rope (23, 24, 33; 33a), wherein the diameter of the first cutout (7; 7a) corresponds to the nominal diameter of an unworn wire rope and the diameter of the second cutout (8; 8a) corresponds to the diameter of a wire rope taken from ISO 4309 (as of 11 / 2017) which is ready for discard to a certain degree, wherein each circular arc-shaped cutout is provided with a corresponding indicia applied thereto, whereby a conclusion about a wear condition of the wire rope is possible.

2. Device according to claim 1, characterized in that the at least two legs (2, 3; 2a, 3a, 34) are provided individually or jointly for determining the parameters and are pivotally connected to one another.

3. Device according to claim 1 or 2, characterized in that the at least two legs (2, 3; 2a, 3a, 35) are each formed elongated and are pivotally connected to one another at an end portion (4; 4a).

4. Device according to any one of claims 1 to 3, characterized in that one of the at least two legs (2, 3; 2a, 3a, 35) has an end portion (14) with a marking (17), wherein the end portion is configured to determine a depth of the wire rope guide means (20, 25, 27, 29), preferably for determining a rope sheave depth or a rope drum depth.

5. Device according to any one of claims 1 to 4, characterized in that one of the at least two legs (2, 3; 2a, 3a, 35) has a semicircular end portion (9, 14), wherein a diameter of the semicircular end portion corresponds to a groove diameter of a wire rope guide means (20, 25, 27, 29), wherein the groove diameter of the wire rope guide means (20, 25, 27, 29) corresponds to 1.04 times to 1.11 times a nominal diameter d0 of a wire rope which is guided over the wire rope guide means (20, 25, 27, 29).

6. Device according to any one of claims 1 to 5, characterized in that one of the at least two legs (2, 3; 2a, 3a, 35) has an indicating means comprising several markings (11-13), by means of which an angle formed between the two legs, which is configured to determine an opening angle of the wire rope guide means (20, 25, 27), can be displayed.

7. Device according to any one of claims 1 to 6, characterized in that the at least one cutout (37) is formed circular arc-shaped, in particular semicircular, and is formed in an end portion (36) of a first one of the at least two legs, wherein the end portion (36) is configured to at least partially engage around the wire rope (23, 24, 33; 33a) in the circumferential direction during a movement in a wire rope longitudinal direction.

8. Device according to any one of claims 1 to 6, characterized in that an indicating means is provided which comprises two markings (17, 19) spaced apart from one another, the distance of which corresponds to six times a nominal diameter d0 of the wire rope (23, 24, 33; 33a) whose parameters are to be determined.

9. Device according to any one of claims 1 to 8, characterized in that the device comprises three legs (2, 3; 2a, 3a, 35).

10. Device according to any one of claims 1 to 9, characterized in that the at least two legs (2, 3; 2a, 3a, 35) are formed of plastic or metal.

11. Device according to any one of claims 1 to 10, characterized in that each of the at least two legs (2, 3; 2a, 3a, 35) is configured to determine several different parameters of the wire rope (23, 24, 33; 33a) and / or of the wire rope guide means (20, 25, 27, 29) guiding the wire rope.