WO2022038201A1 - Chaîne articulée - Google Patents

Chaîne articulée Download PDF

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Publication number
WO2022038201A1
WO2022038201A1 PCT/EP2021/072969 EP2021072969W WO2022038201A1 WO 2022038201 A1 WO2022038201 A1 WO 2022038201A1 EP 2021072969 W EP2021072969 W EP 2021072969W WO 2022038201 A1 WO2022038201 A1 WO 2022038201A1
Authority
WO
WIPO (PCT)
Prior art keywords
chain
wear
articulated
articulated chain
detection means
Prior art date
Application number
PCT/EP2021/072969
Other languages
German (de)
English (en)
Other versions
WO2022038201A8 (fr
Inventor
Jörg MANSKE
Jochen SCHÄPERKLAUS
Rainer BASFELD
Jörg GRAEFE
Birgit HEIN
Marco Hoffmann
Original Assignee
KettenWulf Betriebs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KettenWulf Betriebs GmbH filed Critical KettenWulf Betriebs GmbH
Publication of WO2022038201A1 publication Critical patent/WO2022038201A1/fr
Publication of WO2022038201A8 publication Critical patent/WO2022038201A8/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/02—Driving-chains
    • F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links

Definitions

  • the present invention relates to an articulated chain, in particular a bush chain or bush conveyor chain, according to the preamble of claim 1.
  • An articulated chain comprises a plurality of outer link plates, two of which are opposite each other parallel to a chain pull direction, a plurality of inner link plates, two of which are opposite each other parallel to the chain pull direction, a plurality of pivot pins, each of which is non-rotatable with two parallel to the chain pull direction opposite outer link plates are connected, as well as a plurality of joint bushes, which are each non-rotatably connected to two opposite inner link plates parallel to the direction of the chain pull, one joint bush in each case surrounding a joint pin at least in sections and forming a chain joint with the joint pin.
  • Bush chains are intended to refer to all chain designs that include a chain link made of a link pin and a link bush.
  • Bush conveyor chains are intended to describe all chain designs that are bush chains and have the task of moving or conveying goods of all kinds in conveyor systems and transmitting the total chain tensile force required for this.
  • Bush conveyor chains may or may not have rollers.
  • Bush conveyor chains can have fasteners for attaching additional components, but do not necessarily have to have fasteners.
  • Bush conveyor chains can be used, for example, as escalator chains, or as pallet chains, or as step chains, or as scraper chains. Basically Various applications of bush conveyor chains are possible in all industrial areas.
  • the service life of a link chain is determined by its natural wear limits. Among other things, wear occurs on the surfaces of the components, which experience a relative movement to one another. The surface of the hinge pin and the surface of the bush bore of the hinge bush are the first to be mentioned here. Another wear-prone position is the outer cylinder surface of the pivot bushing. A roller is often installed at this point, which, due to the rotary movement, leads to constant sliding friction between the joint bushing and a roller bore of the roller.
  • chain measuring gauges that output a wear percentage that is averaged over a number of joints.
  • no information is provided about the exact wear position (between the pivot bushing and the chain pin or between the pivot bushing and the roller or protective roller) and the orientation of the wear direction (perpendicular to the chain pull direction or in the chain pull direction).
  • the present invention therefore sets itself the task of remedying this problem mentioned above and further developing an articulated chain in such a way that a wear test can be carried out very easily.
  • An articulated chain according to the invention which can be designed as a bush chain or as a bush conveyor chain, has Wear detection means which are formed integrally with the outer plates and/or integrally with the inner plates.
  • the articulated chain according to the invention thus makes it possible to indirectly determine the state of wear of the inaccessible chain components by means of suitable measuring methods and wear detection means specially attached to the outer link plates and/or to the inner link plates within the system without a complex dismantling of the chain strand.
  • the wear detection means comprise at least one wear marking, which is formed on an outer side of the inner link plate in the vicinity of at least one of the two joint bushings of the inner link plate in question and is set up to indicate the degree of wear of the link chain to visualize in this area.
  • the at least one wear marking is a wear indicator that becomes visible as the degree of wear increases, or several wear indicators that represent different degrees of wear and are designed in such a way that they gradually change as the degree of wear increases become visible.
  • the wear indicators can, for example, be linear and extend parallel to one another, orthogonally to a longitudinal axis of the relevant inner plate.
  • the wear markings is associated with a label that is formed on the outside of the inner plates.
  • a flattening can preferably be formed on at least one tab head of the outer tabs.
  • the wear markings are in the form of stickers, embossing, engraving or laser markings.
  • the wear detection means comprise cutouts or bores that are formed in the inner link plates in the vicinity of at least one of the chain links of the inner link plate in question and are designed to measure the degree of wear of the link chain in this area visualize.
  • the cutouts or bores are preferably covered by the plate heads of the outer plates and are therefore not accessible and also not visible to an observer. As wear and tear continues to progress, these cutouts or bores then become visible to an observer from the outside. A fully visible section or a fully visible bore indicates that the maximum joint wear of the relevant chain joint of the link chain has been reached.
  • the wear detection medium Outer plates include radius contours or wedge-shaped contours on the tops and/or the bottoms of the outer plates.
  • the wear detection means of the inner link plates can preferably be formed by edges which are arranged in such a way that they correspond to the radius contours or the wedge-shaped contours of the outer link plates.
  • Each of the radius contours or wedge-shaped contours is designed in such a way that when new it lies on one side of the beginning of the contour coaxially to the corresponding edge of the inner link plate in the transition between the bolt head radius and the upper edge of the link plate or the lower edge of the link plate and with this edge flees.
  • the edge of the inner plate shifts within the associated radius contour or wedge-shaped contour of the outer plate.
  • the radius contours or wedge-shaped contours can preferably be designed in such a way that exactly when the maximum wear limit of the chain joint is reached (defined by the hardened layers of the friction partners, the joint pin and the joint bush), the edge of the inner plate has completely passed through the associated radius contour or wedge-shaped contour and then is oriented coaxially to the other end of this radius contour or wedge-shaped contour and is aligned with it.
  • the articulated chain has a plurality of rollers which are rotatably mounted on the articulated bushings, the rollers having wear detection means which are integral with the rollers are trained.
  • the rollers having wear detection means which are integral with the rollers are trained.
  • embodiments are also conceivable in which only the rollers have appropriate wear detection means, but the inner link plates and/or the outer link plates do not.
  • the wear detection means of each of the rollers comprise at least one annular hub contour, which is formed in one of the end faces of the roller in question, or comprise at least two annular hub contours, which are formed in at least one of the end faces of the roller in question are formed, are arranged coaxially to one another and have different outer diameters.
  • the diameter of a first hub contour lying axially further outside is selected such that when the link chain is new, an upper edge of the inner link plate is flush with the first hub contour.
  • the diameter of the second hub contour can be selected, for example, so that it corresponds to the diameter of the plate head of the inner plate.
  • the position of the first hub contour now shifts relative to the upper edge of the inner plate.
  • This dimension describes the overall wear between the joint bushing and the roller. For example, the current degree of wear in this area can be determined very easily using a caliper gauge with a depth gauge.
  • the roller When worn, the roller can be moved in the chain pull direction. This dimension can be measured by the distance between the second hub contour and a tip radius of the inner plate. This then largely corresponds to the wear on the inner diameter of the roller. The difference between the two recorded dimensions consequently describes the maximum wear of the joint bushing in the contact area between the roller and the joint bushing.
  • the radial arrangement of the hub contours on the Roller can be flexibly adjusted to the depth of the hardened layer of the components.
  • the hub contours can be formed at right angles on their outer edge. This makes it easy to use measuring equipment to determine the degree of wear on the articulated chain in this area.
  • the wear detection means of each of the rollers comprise at least one recess or at least one annular groove, which is formed in at least one of the end faces of the relevant roller. If several recesses or annular grooves are provided, these are in particular arranged coaxially with one another. Such indentations or annular grooves can also be formed in both opposite end faces of the rollers. These annular grooves can be round or angular in cross section.
  • the hub contours or annular grooves can also be formed in both opposite end faces of the rollers.
  • the articulated chain has a plurality of rollers which are rotatably mounted on the pivot pin.
  • An articulated chain with rollers can thus also be made available, the rollers not being equipped with wear detection means.
  • non-wearing wear detection means for example as Wear markings, curves, notches, edges, bores, recesses or other shaped geometric elements can be designed, on the elements firmly connected to the wear-prone components, the wear path can be transferred to externally accessible components and recorded there during a test process, for example, visually will.
  • FIG. 1 is a perspective view of a link chain designed according to a first embodiment of the present invention
  • FIG. 2 is a perspective view of an articulated chain constructed according to a second embodiment of the present invention.
  • FIG. 3 is a perspective view of an articulated chain constructed according to a third embodiment of the present invention.
  • FIG. 4 is a perspective view of an articulated chain constructed according to a fourth embodiment of the present invention.
  • 5 is a perspective view of an articulated chain constructed according to a fifth embodiment of the present invention
  • 6 is a perspective view of a link chain constructed according to a sixth embodiment of the present invention.
  • FIG. 7 shows a perspective view of a roller which has a hub contour
  • Fig. 9 shows a detail according to IX in Fig. 8,
  • FIG. 10 is a perspective view of a roller that has multiple right-angled hub contours for attaching measuring devices
  • FIG. 11 shows a section through the roller according to FIG. 10,
  • Fig. 12 shows a detail according to XI I in Fig. 11,
  • FIG. 13 shows a perspective view of a roller which has a plurality of groove contours
  • Fig. 15 shows a detail according to XV in Fig. 14.
  • an articulated chain comprises
  • a plurality of Outer link plates 2, two of which are opposite each other parallel to a chain pull direction, a plurality of inner link plates 3, of which two are opposite each other parallel to the chain pull direction, a plurality of hinge pins 4, each of which rotates with two outer link plates 2 that are parallel to and opposite one another in the chain pull direction are connected, as well as a plurality of joint bushings 7, which are each rotationally connected to two inner plates 3 lying opposite one another parallel to the chain pulling direction, with one joint bushing 7 at least partially surrounding a joint pin 4 and forming a chain joint with this joint pin 4.
  • Possible embodiments of the roller 6, the in Fig. 1 to 6 each show an articulated chain 1 designed as a bush conveyor chain with inner rollers 6 which are slide-mounted on the articulated bushes 7 .
  • two wear detection means are provided on each of the outer link plates 2 in the vicinity of the two chain joints in order to solve the problem listed above under point 1.
  • these wear detection means are designed as radius contours 20a, 20b, 20c, 20d.
  • only one wear detection means can be provided on each of the outer link plates 2 in the vicinity of the two chain joints.
  • Each of the inner plates 3 has two edges 30 near the first chain joint in a transition area to a head radius 32 and two further edges 31 near the second chain joint in a transition area to a head radius, with these Edges are partially covered. These edges 30, 31 formed on the top and bottom of the relevant inner plate 3 also form wear detection means and correspond to the radius contours 20a, 20b, 20c, 20d in the manner described below.
  • Each of the radius contours 20a, 20b, 20c, 20d is designed in such a way that, when new, it is coaxial on one side of the beginning of the contour with the corresponding edge 30, 31 of the inner link plate 3 in the transition between the bolt head radius and the top edge of the link plate or the Tab lower edge is and w ith this edge 30, 31 is aligned.
  • the edge 30, 31 of the inner plate 3 shifts within the associated radius contour 20a, 20b, 20c, 20d of the outer plate 2.
  • the radius contours 20a, 20b, 20c, 20d can preferably be designed in such a way that exactly when the maximum wear limit of the chain joint is reached (defined by hard layers of the friction partners joint pin 4 and joint bush 7), the edge 30, 31 of the inner link plate 3 has the associated radius contour 20a, 20b, 20c, 20d has completely passed through and is then oriented coaxially to the other end of this radius contour 20a, 20b, 20c, 20d and is aligned with it.
  • FIG. 2 shows an alternative to the radius contours 20a, 20b, 20c, 20d shown in FIG.
  • the radius contours 20a, 20b, 20c, 20d described there can in principle be designed in any conceivable form.
  • wedge-shaped contours 20a', 20b', 20c', 20d', as shown in FIG. 2 are conceivable here.
  • the function of the wedge-shaped contours 20a', 20b'. 20c', 20d' as wear detection means in cooperation with the edges 30, 31 of the inner plate 3 corresponds to that of the radius contours 20a, 20b, 20c, 20d in the first exemplary embodiment according to FIG.
  • a wear marking 23a, 23b is formed on an outer side of each of the inner link plates 3 in the vicinity of the two joint bushes 7, which markings have a number of wear indicators 230, 231, 232, which represent different degrees of wear.
  • the wear indicators 230, 231, 232 are linear in the present case formed and extend orthogonally to a longitudinal axis of the relevant inner plate 3 parallel to each other. With increasing wear, the individual wear indicators 230, 231, 232 gradually become visible and thus provide information about the increasing degree of wear.
  • only one wear marking 23a, 23b can also be provided.
  • the at least one wear marking 23a, 23b can, for example, also have only one wear indicator 230, 231, 232, which becomes visible with increasing wear.
  • the plate heads of the outer plates 2 can also be designed in such a way that the wear markings 23a, 23b come into their own as clearly as possible visually as soon as a corresponding wear has set in. Areas in the area of the round link heads would be conceivable here, for example.
  • Fig. 4 shows a corresponding development of the link chain 1 shown in Fig. 3, wherein a flattening 33, 34 is formed on the opposite plate heads of each of the outer plates 2, so that the wear indicators 230, 231, 232 of the wear markings 23a , 23b can be visually detected more easily, in particular if the flattened areas 33, 34 are aligned with one of the linear wear indicators 230, 231, 232 in the present case.
  • the wear markings 23a, 23b shown in FIGS. 3 and 4 can in particular be in the form of stickers, embossing, engraving, laser markings or the like.
  • An additional inscription 24 can be assigned to these wear markings 23a, 23b for better understanding.
  • a central area on the outside of the inner link plates 3 can be used for this inscription 24 .
  • FIG. 5 shows an example of an embodiment of a link chain 1 in which, compared to the embodiment shown in FIG. 3, additional inscription 24 is provided for the wear markings 23a, 23b.
  • the inscription 24 provides information about the percentage of wear (here: 0%, 50%, 100%, with a finer classification also being possible).
  • Such an inscription 24 is also conceivable in the exemplary embodiment according to FIG.
  • the inner link plates 3 each have a cutout 21 in the vicinity of the chain joints. These cutouts 21 also form wear detection means and presently have a triangular outline. In FIG. 6 one of these cutouts 21 is essentially covered by the outer flap 2 . Instead of the cutouts 21, for example, circular or differently shaped bores can also be provided. The cutouts 21 or bores can in particular be designed in such a way that the degree of wear can be indicated by means of suitable test gauges.
  • cutouts 21 or holes provided in the articulated chain according to FIG. 6 are covered by the plate heads of the outer plates 2 when the articulated chain 1 is new and are therefore not accessible and also not visible to an observer. As wear continues to progress, these cutouts 21 or bores then become visible to an observer from the outside. A section 21 that is fully visible or a bore that is fully visible indicates that the maximum joint wear of the relevant chain joint of the articulated chain 1 has been reached.
  • the wear detection means shown in FIGS. 3 to 6 and designed in different ways are thus visible as a result of the progressive wear caused by the displacement of the link head of the outer link 2.
  • the roller 6 has, for example, a plurality of narrow, annular hub contours 60, 61 on at least one end face, which extend coaxially to one another and form wear detection means.
  • a roller 6 w ith such hub contours 60, 61 is shown in FIGS. 7 to 9.
  • the diameter of a first hub contour 60 lying further axially on the outside is selected such that when the link chain is new, an upper edge of the inner link plate 3 terminates flush with the first hub contour 60 .
  • a second hub contour 61 has, for example, a diameter which corresponds to that of the plate head of the inner plate 3 .
  • the position of the first hub contour 60 is now shifted relative to the upper edge of the inner plate 3.
  • This measure describes the total wear between the joint bushing 7 and the roller 6.
  • the current degree of wear can be determined using a caliper gauge with a depth gauge very easy to determine in this area.
  • the roller 6 When worn, the roller 6 can be shifted in the direction of the chain pull. This dimension can be measured by the distance between the second hub contour 61 and a head radius 32 of the inner link plate 3 . This then largely corresponds to the wear on the inner diameter of the roller 6.
  • the difference between the two recorded dimensions consequently describes the maximum wear of the articulated bushing 7 in the contact area between the roller 6 and the articulated bushing 7.
  • the radial arrangement of the hub contours 60, 61 on the roller 6 can be flexibly adapted to the hardened layer depths of the components.
  • the two hub contours 60, 61 in this exemplary embodiment are beveled at their outer edges 600, 610.
  • the roller 6 also has two narrow, ring-shaped hub contours 60, 61 on its end face, which extend coaxially to one another and form wear detection means.
  • the basic function of the hub contours 60, 61 corresponds to that of the exemplary embodiment according to FIGS. 7 to 9.
  • the two hub contours 60, 61 in this exemplary embodiment are not beveled at their outer edges 600, 610, but are rectangular. This allows measuring means to be used in a simple manner to determine the degree of wear on the articulated chain 1 in this area.
  • the roller 6 can also have a plurality of turnings or annular grooves 62, 63, 64, which form the wear detection means.
  • the hub contours 60, 61 or annular grooves 62, 63, 64 can also be formed in both opposite end faces of the roller.
  • a paragraph can be attached, which is not subject to wear. This paragraph can be used during operation of the articulated chain 1 as a fixed point for measuring means for detecting the progressive wear.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chain Conveyers (AREA)

Abstract

L'invention concerne une chaîne articulée (1), en particulier une chaîne à douilles ou une chaîne transporteuse à douilles, comprenant une pluralité de mailles extérieures (2) parmi lesquelles respectivement deux mailles sont disposées de manière opposée parallèlement à une direction de tension de la chaîne, une pluralité de mailles intérieures (3) parmi lesquelles respectivement deux mailles sont disposées de manière opposée parallèlement à la direction de tension de la chaîne, une pluralité d'axes d'articulation (4) qui sont reliés respectivement de manière solidaire en rotation à deux mailles extérieures (2) disposées de manière opposée parallèlement à la direction de tension de la chaîne, et une pluralité de douilles d'articulation (7) qui sont reliées respectivement de manière solidaire en rotation à deux mailles intérieures (3) disposées de manière opposée parallèlement à la direction de tension de la chaîne, respectivement une douille d'articulation (7) entourant au moins sur certaines zones un axe d'articulation (4) et formant avec cet axe d'articulation (4) un maillon de chaîne, la chaîne articulée (1) comportant des moyens de détection d'usure conçus de manière à ne faire qu'un avec les mailles extérieures (2) et/ou les mailles intérieures (3).
PCT/EP2021/072969 2020-08-18 2021-08-18 Chaîne articulée WO2022038201A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020121651 2020-08-18
DE102020121651.3 2020-08-18

Publications (2)

Publication Number Publication Date
WO2022038201A1 true WO2022038201A1 (fr) 2022-02-24
WO2022038201A8 WO2022038201A8 (fr) 2022-07-07

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ID=77666493

Family Applications (1)

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PCT/EP2021/072969 WO2022038201A1 (fr) 2020-08-18 2021-08-18 Chaîne articulée

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003091599A1 (fr) * 2002-04-24 2003-11-06 Pro 2 S.R.L. Chaine articulee
WO2009044117A1 (fr) * 2007-09-29 2009-04-09 Renold Plc Contrôle d'usure de chaîne de transmission
DE202018101379U1 (de) * 2017-07-24 2018-03-21 Amc Chain Industrial Co., Ltd. Kette

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003091599A1 (fr) * 2002-04-24 2003-11-06 Pro 2 S.R.L. Chaine articulee
WO2009044117A1 (fr) * 2007-09-29 2009-04-09 Renold Plc Contrôle d'usure de chaîne de transmission
DE202018101379U1 (de) * 2017-07-24 2018-03-21 Amc Chain Industrial Co., Ltd. Kette

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Publication number Publication date
WO2022038201A8 (fr) 2022-07-07

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