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WO2011091810A1 - Joint de chaîne pour chaînes à maillons - Google Patents

Joint de chaîne pour chaînes à maillons Download PDF

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Publication number
WO2011091810A1
WO2011091810A1 PCT/EP2010/000467 EP2010000467W WO2011091810A1 WO 2011091810 A1 WO2011091810 A1 WO 2011091810A1 EP 2010000467 W EP2010000467 W EP 2010000467W WO 2011091810 A1 WO2011091810 A1 WO 2011091810A1
Authority
WO
WIPO (PCT)
Prior art keywords
teeth
chain lock
closing
base body
chain
Prior art date
Application number
PCT/EP2010/000467
Other languages
German (de)
English (en)
Inventor
Ägyd Pengg
Franz Alfred Fuchs
Original Assignee
Pewag Austria 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 Pewag Austria Gmbh filed Critical Pewag Austria Gmbh
Priority to PCT/EP2010/000467 priority Critical patent/WO2011091810A1/fr
Publication of WO2011091810A1 publication Critical patent/WO2011091810A1/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
    • F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
    • F16G15/02—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes for fastening more or less permanently
    • 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
    • F16G13/04—Toothed chains

Definitions

  • the invention relates to a chain lock for link chains, comprising a base body in the form of a broken at one of its side legs along an opening portion chain link and a closing element for closing the opening portion and connecting the both sides limiting end portions of the broken side leg with each other.
  • Chain locks are mainly used for connecting individual chain strands in conveyor systems, wherein it is in the latter z. B. is poultry slaughter and and -Zerteilanlagen.
  • hardened conveyor chains are used as single-strand conveyor chains, wherein the individual chain strands, which average on z. B. about 50 m long, are connected to the chain locks to a closed chain strand.
  • Chain locks can also be used in larger chains, such as bucket elevators and multi-strand conveyors.
  • Such a chain lock describes z.
  • This known chain lock consists of two parts, which are connected to each other via retaining teeth formed on the respective part of projections and locked by a locking element in its closed position.
  • this known chain lock can only run as a vertically aligned chain lock on sprockets, because it is reinforced beyond the matching chain cross section out in its central region.
  • this chain lock is not suitable for use with sprockets in the form of internal gears, since it has a central web and the teeth of a sprocket therefore do not have space in the chain link opening.
  • Similar chain lock constructions are also shown in DE 32 07 629 A1, DE 35 16 800 C1 and EP 0 183 641 A2 and AT 404 292 B, respectively.
  • a chain lock offered on the market (RUD RSP) can be used in practical use in pocket sprockets unrestricted and without preferential direction. However, since this chain lock has a central bar, its use in internal gears is not possible.
  • the invention aims to improve a chain lock of the type mentioned so that while maintaining its suitability of unrestricted run on sprockets, in horizontal and vertical position, at significantly lower production costs also has a significantly higher breaking load.
  • the closing element comprises two closing members, each protruding from one side of the base body with a projection in the opening portion in which both projections face each other, each closing member with each of its lateral end portions in each case an end portion of the body covered on one side while form fit with each other in the longitudinal direction of the body offset from each other on this side gears mounted, further, both closure members are locked via a locking element in its closed position and in the unloaded state between the projections the closing members facing side edges of the teeth of each closing member and the respective adjacent side edges of the teeth of each end portion of the body, except for each of the projection of the closing member nearest teeth of closing member and end portion, a backlash is provided, which is chosen to be larger with increasing distance of the respective side edges of the projection of the closing member and thereby each dimensioned so that when tensile load of the chain lock under nominal load, the backlash has disappeared on all flank pairs, wherein in the locked closed state, each closing member does not protrude
  • the chain lock according to the invention initially has basically a configuration in which each locking member is designed in the locked locked state so that it does not protrude laterally beyond the contour of the body, or in other words: the width of the assembled closing element, perpendicular to the clamping center plane of the body seen corresponds to the width of the body.
  • the width of the chain lock does not exceed that of the basic chain which is connected to it, thus allowing unrestricted running, both in a horizontal and in a vertical position, over sprockets of any kind.
  • the chain lock according to the invention can be both the body, as well as the closing members made of castings, so that this results in significantly reduced manufacturing costs compared to the generic chain lock.
  • the provided between the teeth of the closure members and the teeth on the two end portions of the body in the unloaded state, precisely defined backlash of the chain lock according to the invention is reduced under tensile load. If at nominal tensile load then the backlash has completely disappeared thereby ensuring the full load capacity of the selected gearing, which is accompanied by an increase in the breaking force.
  • the base body and the closing members are made of investment casting, whereby no reworking of these parts (apart from a possible threading for locking the closure members in their closed position) is more necessary, resulting in particularly low production costs and the production of large Quantities therefore in this case is particularly economical.
  • a further preferred embodiment of the invention also consists in that the base body is formed symmetrically to its clamping center plane.
  • the closure member may be formed in the invention in any suitable manner. However, it is particularly preferred for the closing element to choose a screw connection which clamps the two closing elements against one another and, more preferably, comprises a screw bolt and a self-locking nut. This leads to an uncomplicated embodiment of the closing element, which is easy to produce and also allows rapid locking of the closing members in the closed position.
  • the teeth at the end portions of the main body and the side end portions of the shutter members may be formed in different shapes. However, all teeth are particularly preferably formed at the end regions of the base body so that they have an equal tooth width.
  • a particularly advantageous embodiment of the invention consists in the fact that the distances of the protruding tooth end surfaces of the clamping center plane of the body at the end portions with increasing distance of the tooth in question from the opening portion of the body increase, resulting in a particularly favorable transfer of transmitted through the chain lock Traction between the end portions of the body and the toothed with these lateral sections of the closing members and thus can achieve a high breaking strength. It is advantageous in the invention further, when the teeth at the end portions of the body, seen in the longitudinal direction of the chain lock, are mounted offset at equal distances from each other.
  • the number of teeth per toothed area can be suitably selected by the skilled person depending on the requirements when using the chain lock.
  • four teeth are respectively formed at the end portions of the base body delimiting the opening portion, as well as at each end portion of each closing member, which results in an excellent functionality in most cases of use.
  • FIG. 1 shows a chain lock according to the invention in a perspective view (viewing direction from top left);
  • Fig. 2 is a side view of the chain lock of Fig. 1;
  • FIG. 3 shows a sectional illustration along the sectional plane A-A from FIG. 2;
  • Fig. 4 is a side view of the main body of the chain lock of Fig. 1;
  • Fig. 5 is a plan view of the main body of FIG. 4;
  • FIG. 6 is a sectional view taken along section plane B-B corresponding to FIGS. 4 and 5;
  • FIG. 7 shows a side view of a closing element on its side facing the opening section
  • FIG. 8 shows a sectional view through the closing member from FIG. 7 corresponding to the cutting position C-C in FIG. 7;
  • FIG. 9 shows a longitudinal section through the closing member according to FIG. 7 corresponding to the cutting position D-D in FIG. 7;
  • FIG. 10 is a perspective view (obliquely from above) of a sprocket in the form of a pocket sprocket with a chain strand guided over it with a chain lock according to the invention
  • Fig. 1 1 is a sectional view of the sprocket of Fig. 10 along the wheel center plane corresponding to cutting position E-E of Fig. 12, and
  • FIG. 12 is a plan view of the sprocket assembly of FIG. 10.
  • Fig. 1 shows in a perspective view obliquely from above a chain lock 1, which is shown in Fig. 2 in side view.
  • the chain lock 1 consists of a base body 2, in the form of a chain link, which has a continuous side leg 3 'and a longitudinal opening portion 4 (Fig. 4) broken second side leg 3, and further comprising a closing element 5, which in the assembled state Opening portion 4 closes and two closing members 6, 6 ', each of which protrudes from one side of the base body 2 ago with a central projection 7, 7' in the opening portion 4.
  • the two projections 7 and T facing each other and mounted so that they rest against each other in the mounted state or are separated from each other via a very small intermediate gap.
  • a closing member 6 is shown in a side view, wherein its side facing the viewer is the side of the closing member 6, which faces the base body 2 in the assembled state.
  • Fig. 8 shows the sectional view C-C of Fig. 7, d. H. a central section in a cutting position perpendicular to the longitudinal axis of the closing member 6 and perpendicular to the image plane of FIG. 7th
  • Fig. 9 is still a longitudinal section through the closing member 6 along cutting position D-D shown in FIG. 7.
  • Fig. 3 shows a section corresponding to cutting position A-A of Fig. 2 by the chain lock 1 in its assembled state.
  • each of the two closing members 6, 6 "respectively from the region of the central projection 7 and 7 'and two on both sides of the same extending from this side end portions. 8 (Closing member 6) and 8 '(closing member 6').
  • each closing member 6 and 6' are on their in the assembled state the base body 2 side facing each with a toothing in the form of four mutually offset in the longitudinal direction of the chain lock 1 teeth 10, (Fig. 9) provided in the mounted state with the opening portion 4 each laterally delimiting areas 9, 9 'of the base body 2 correspondingly complementarily formed teeth 1 1 in intermeshing engagement (see Fig. 1 and 3).
  • the teeth 10 ⁇ 10 2 ,... 10, and 11 ⁇ 1 1 2 ,... 11 run parallel to one another on each lateral end section 8, 8 'and on the lateral end sections 9, 9' of the main body 2. but not in a straight line, as can be seen from FIG. 4 (which shows a side view of the main body 2) and FIG. 7 (with the side view of the closing member 6).
  • the closing members 6 and 6 ' With their lateral end portions 8 and 8' and the there mounted teeth 10 with the teeth 1 1 at the end portions 9 and 9 'of the base body 2 in meshing engagement.
  • the geometry of the mutually engaged teeth 10 ⁇ ... 10 ⁇ and 11 ⁇ ... 1 1 j chosen so that the middle projection 7 and T facing side edges of the teeth 10 2 , ... 10, at the closure members 6, 6 'a certain game S; to the side edge facing them of the adjacent tooth 11 2 , ... 11, at the end region 9, 9 'of the main body 2, where in principle: s, - is always greater than s M.
  • the lateral flank play between the projection 7 and 7 'respectively facing side edges of the teeth 10 2 , ... 10, to the side edges facing each of the adjacent tooth 1 1 2 , ... 1 1, the end portion 9 or 9 'of the base body 2 in teeth that are farther away from the projection 7 and T, greater than the backlash between such teeth, which are closer to the projection 7, 7', selected.
  • the size of the backlash s ( -, which must be set in the unloaded state to meet this condition, of course, depends on the specific geometry of the teeth, the skilled person to determine the set flank play S / in the unloaded state at a given geometry and specified materials and knowledge of their elasticity and flow characteristics can calculate the size of the adjusted flank play easily Similarly there for him but also the possibility, for a given geometry and given materials with simple experiments, the size of the backlash s;. to determine such a way that it at rated tension F just disappears.
  • this closing element is a screw 12 in the form of a bolt with a self-locking nut executed, which is indicated in the figures, however, only in principle.
  • screw connections are well known to the skilled person.
  • a central bore 13 which is provided on the outer side of the closing member 6 with a countersink 14 for receiving a screw head, is provided for such a screw connection 12 serving as a closing element.
  • the circumferential width of the base body 2 is corresponding d.
  • the geometry of the closing members 6 and 6 'in conjunction with the geometry of the end portions 3 and 3' of the body 2 is selected so that in the assembled state, respectively the outer surfaces 16 and 16 'of Closing members 8 and 8 'do not protrude beyond the width d of the circumferential outline of the main body 2, but are aligned with its outer contour.
  • the closing members 8 and 8 'both laterally beyond the width d protrude which equally but also, seen in the circumferential direction, with respect to the circumferential, flattened outer side 21 of the chain lock 1 and from the illustration of FIG is apparent.
  • the width d of the chain lock 1 thus does not exceed that of the basic chain which is connected to the chain lock 1. This ensures a completely unrestricted running of the chain lock 1 with the suspended basic chain on sprockets of any kind both in the horizontal, as well as in the vertical position of the chain lock 1.
  • the base body 2 of the chain lock 1 is formed so that it is symmetrical to its longitudinal center plane MM.
  • the chain lock 1 is executed with all its parts, apart from the parts of the screw 12, in investment casting, resulting in a reworking (apart from the formation of the thread 14 in the one of the two closing members 6 and 6 ') is unnecessary, which is quite particularly beneficial to the cost of production.
  • a reworking (apart from the formation of the thread 14 in the one of the two closing members 6 and 6 ') is unnecessary, which is quite particularly beneficial to the cost of production.
  • the end portions 9, 9 'of the base body 2 are formed with their teeth so that the distance a t the outer surface of each of the different teeth 1 1, from the clamping center plane MM of the body 2 with increasing distance the teeth of the opening portion 14 is larger, so that in the illustrated embodiment, the opening portion 4 facing the outer edges of the teeth 1 1 ,, 11 2 , ... 1 1, along an inclined at an angle a to the longitudinal center plane MM extending straight line G. lie, as shown in FIG. 5.
  • a favorable transmission of the tensile forces on the adjacent flanks of the teeth of the base body 2 in the lateral closing members 6, 6 ' is achieved.
  • Fig. 10 shows, in a perspective view obliquely from above, a sprocket 17 in the form of a pocket sprocket over which a chain strand is guided with a chain lock 1, which corresponds in structure to the chain lock of FIG.
  • the sprocket 17 is rotated about an axis S in the direction of the arrow shown in Fig. 10, with this unnecessary details, since it can be stored and rotated in different ways, which is known in the art.
  • FIG. 10 shows a sectional view of the arrangement of Fig. 10, wherein the cutting position in the median plane of the sprocket 17 is selected according to the indicated in Fig. 12 cutting position EE.
  • FIG. 12 shows a plan view of the arrangement from FIG. 10.
  • the sprocket 17 has, as shown in FIGS. 10 to 12, at its outer periphery in these recessed Kettenradtaschen 19, which are arranged so that they can each receive a chain link 18 in a horizontal position, wherein the distance between the Kettenradtaschen 19 and their Training and arranged in the circumferential direction between these connection openings 20 is selected so that in each case two horizontal chain links 18 and a connecting, but vertically aligned chain link can be received and guided, with an undisturbed inlet and outlet from the pockets 19 and this in the circumferential direction connecting intermediate openings 20 is ensured.
  • the individual chain links 18 of the link chain shown here two of which are connected to a chain lock 1 of the embodiment shown in Fig. 1, have a chain link shape, which basically the chain link shape of the main body 2 of the chain lock 1 (apart from its end portions 9, 9 '). and the opening portion 4).
  • a chain strand comprising such a chain lock 1 and a plurality of chain links 18, can be performed without problems on a sprocket with internal gears.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

L'invention concerne un joint de chaîne (1) comprenant un corps de base (2) sous forme de maillon de chaîne interrompu sur une branche latérale (3), le long d'une partie d'ouverture (4), et un élément de fermeture (5) destiné à fermer la partie d'ouverture (4) à l'aide de deux maillons de fermeture (6, 6') dont chacun fait latéralement saillie par une partie saillante (7, 7') dans la partie d'ouverture (4), respectivement une de ses deux parties d'extrémité latérales (8, 8') recouvrant latéralement une zone d'extrémité (9, 9') du corps de base (2) et venant ainsi en prise par complémentarité de forme avec des dentures latérales (11i) ménagées sur le corps de base (2). Les deux maillons de fermeture (6, 6') peuvent être bloqués dans leur position de fermeture par un élément de verrouillage (12). A l'état non sollicité, un jeu (si) est présent entre chacune des dents (10i) en prise de chaque maillon de fermeture (6, 6') et les dents adjacentes (11i) de la zone d'extrémité associée (9, 9') du corps de base (2), à l'exception de chaque première dent (10i ; 11i) du maillon de fermeture (6, 6') et de la partie d'extrémité (9, 9'), ledit jeu augmentant à mesure que l'écart entre les dents et la partie saillante (7, 7') du maillon de fermeture (6, 6') grandit et étant dimensionné de sorte qu'il disparaît lorsqu'une charge nominale de traction est exercée sur toutes les dents (10i, 11i).
PCT/EP2010/000467 2010-01-26 2010-01-26 Joint de chaîne pour chaînes à maillons WO2011091810A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/000467 WO2011091810A1 (fr) 2010-01-26 2010-01-26 Joint de chaîne pour chaînes à maillons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/000467 WO2011091810A1 (fr) 2010-01-26 2010-01-26 Joint de chaîne pour chaînes à maillons

Publications (1)

Publication Number Publication Date
WO2011091810A1 true WO2011091810A1 (fr) 2011-08-04

Family

ID=42931956

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Application Number Title Priority Date Filing Date
PCT/EP2010/000467 WO2011091810A1 (fr) 2010-01-26 2010-01-26 Joint de chaîne pour chaînes à maillons

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021228965A1 (fr) 2020-05-15 2021-11-18 Flintstone Technology Ltd Perfectionnements apportés ou se rapportant à un raccordement de chaîne

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT4042B (fr) 1899-07-27 1901-05-10 Robert Schittke
US1412724A (en) * 1921-06-13 1922-04-11 Tobin Maurice Repair link
DE694016C (de) * 1937-04-22 1940-07-24 Wilhelm Roeckel Kettennotglied mit einem loesbaren Einsatzstueck in einem der Schenkel
GB1241932A (en) * 1969-07-07 1971-08-04 Felco Hoists Ltd Improvements in or relating to joining links for chains
DE3207629A1 (de) 1982-02-26 1983-09-15 Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co, 7080 Aalen Kettenschloss fuer gliederketten
EP0183641A2 (fr) 1984-11-29 1986-06-04 RUD-Kettenfabrik Rieger & Dietz GmbH u. Co. Maillon de raccordement
DE3516800C1 (de) 1985-05-07 1986-12-18 Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co, 7080 Aalen Kettenschloss
EP0562949A1 (fr) * 1992-03-24 1993-09-29 Forges De Fresnes Procédé d'assemblage de deux extrémités d'éléments en vis à vis et maillons démontables réalisés par ce procédé
DE4333261C1 (de) 1993-09-27 1994-10-27 Rud Ketten Rieger & Dietz Kettenschloß
US6272837B1 (en) * 1998-11-13 2001-08-14 Vincinay Cadenas, S.A. Connecting shackle for chains having orthogonally-planed closing means

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT4042B (fr) 1899-07-27 1901-05-10 Robert Schittke
US1412724A (en) * 1921-06-13 1922-04-11 Tobin Maurice Repair link
DE694016C (de) * 1937-04-22 1940-07-24 Wilhelm Roeckel Kettennotglied mit einem loesbaren Einsatzstueck in einem der Schenkel
GB1241932A (en) * 1969-07-07 1971-08-04 Felco Hoists Ltd Improvements in or relating to joining links for chains
DE3207629A1 (de) 1982-02-26 1983-09-15 Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co, 7080 Aalen Kettenschloss fuer gliederketten
EP0183641A2 (fr) 1984-11-29 1986-06-04 RUD-Kettenfabrik Rieger & Dietz GmbH u. Co. Maillon de raccordement
DE3516800C1 (de) 1985-05-07 1986-12-18 Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co, 7080 Aalen Kettenschloss
EP0562949A1 (fr) * 1992-03-24 1993-09-29 Forges De Fresnes Procédé d'assemblage de deux extrémités d'éléments en vis à vis et maillons démontables réalisés par ce procédé
DE4333261C1 (de) 1993-09-27 1994-10-27 Rud Ketten Rieger & Dietz Kettenschloß
US6272837B1 (en) * 1998-11-13 2001-08-14 Vincinay Cadenas, S.A. Connecting shackle for chains having orthogonally-planed closing means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021228965A1 (fr) 2020-05-15 2021-11-18 Flintstone Technology Ltd Perfectionnements apportés ou se rapportant à un raccordement de chaîne

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