FR2792984A1 - Device for replacement of worn chain link operating in abrasive environment comprises two half-links with clevis and eye ends and transverse cotter and spring washer - Google Patents
Device for replacement of worn chain link operating in abrasive environment comprises two half-links with clevis and eye ends and transverse cotter and spring washer Download PDFInfo
- Publication number
- FR2792984A1 FR2792984A1 FR9905425A FR9905425A FR2792984A1 FR 2792984 A1 FR2792984 A1 FR 2792984A1 FR 9905425 A FR9905425 A FR 9905425A FR 9905425 A FR9905425 A FR 9905425A FR 2792984 A1 FR2792984 A1 FR 2792984A1
- Authority
- FR
- France
- Prior art keywords
- links
- clevis
- chain link
- replacement
- spring washer
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/125—Chain-type slings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
- E02F3/58—Component parts
-
- 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
- F16G13/12—Hauling- or hoisting-chains so called ornamental chains
-
- 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
- F16G15/04—Quickly-detachable chain couplings; Shackles chain links with rapid junction means are classified according to the corresponding kind of chain
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electric Cable Installation (AREA)
Abstract
Description
- I - La présente invention concerne un dispositif de remplacement de- I - The present invention relates to a device for replacing
maillon de chaîne travaillant dans un milieu abrasif pour diverses applications et notamment pour les chain link working in an abrasive medium for various applications and in particular for
chaînes de levage et de tirage des godets draglines. dragline bucket lifting and pulling chains.
Les maillons de remplacement existants sont constitués de deux éléments symétriques ou non, maintenus par des rivets ou des boulons nécessitant lu outillage spécial et un temps de manipulation relativement important. Les fixations par boulons sont en contact direct avec le milieu abrasif et avec les autres maillons entraînant ainsi une usure The existing replacement links consist of two symmetrical or non-symmetrical elements, held by rivets or bolts requiring special tools and a relatively long handling time. The bolt fasteners are in direct contact with the abrasive medium and with the other links, thus causing wear.
plus rapide et parfois même une rupture. faster and sometimes even a break.
Le dispositif selon l'invention permet de remédier à ces inconvénients. En effet constitué de deux demi-maillons s'imbriquant l'un dans l'autre et verrouillés par deux axes transversaux, maintenus eux-mêmes en translation par des rondelles élastiques noyées dans la matière, il permet un montage et démontage rapide (un coup de marteau) et une protection du système de clavetage(aucut élément de verrouillage n'est en contact avec le The device according to the invention overcomes these drawbacks. Indeed made up of two half-links overlapping one another and locked by two transverse axes, themselves held in translation by elastic washers embedded in the material, it allows rapid assembly and disassembly (one shot hammer) and protection of the keying system (no locking element is in contact with the
milieu abrasif).abrasive medium).
Selon des modes particuliers de réalisation - les deux demi-maillons peuvent être identiques, constitués d(l'un demi-tore, terminé à une extrémité par une chape et à l'autre par un oeilleton contenant le logement de la According to particular embodiments - the two half-links can be identical, consisting of (one half-torus, terminated at one end by a yoke and at the other by an eyelet containing the housing of the
rondelle élastique (lamage).elastic washer (counterbore).
-les axes peuvent comporter um chanfrein permettant d'écarter la rondelle élastique au montage et une gorge chanfreinée qui par la libération du ressort maintiendra l'axe en -the axes may include a chamfer making it possible to separate the elastic washer during assembly and a chamfered groove which by the release of the spring will maintain the axis in
position. Leur longueur ne sera pas supérieure à la hauteur de la chape. position. Their length will not be greater than the height of the screed.
- les rondelles ressorts peuvent être chanfreinées et fendues permettant à la - the spring washers can be chamfered and split allowing the
déformation de se produire.distortion to occur.
Les dessins annexés illustrent l'invention: The accompanying drawings illustrate the invention:
La figure I représente le dispositif monté sur une chaîne. Figure I shows the device mounted on a chain.
La figure 2 représente le demi-maillon. Figure 2 shows the half link.
La figure 3 représente en coupe la séquence d'assemblage du dispositif de l'invention. Figure 3 shows in section the assembly sequence of the device of the invention.
La figure 4 représente une variante du dispositif En référence à la figure 2, le demi-maillon présenté est constitué d'une chape Rep FIG. 4 represents a variant of the device With reference to FIG. 2, the half-link presented consists of a clevis Rep
1 d'un demi-tore Rep 2 et d'un oeilleton Rep 3 comprenant un lamage Rep 4. 1 of a Rep 2 half-torus and a Rep 3 eyepiece comprising a Rep 4 counterbore.
En référence à la figure 3, le dispositif de l'invention est constitué de deux demi- Referring to Figure 3, the device of the invention consists of two half
maillons identiques à la figure 2. L'oeilleton Rep 3 de la pièce de droite est introduite dans la chape Rep 1 de la pièce de gauche après avoir logé la rondelle ressort Rep 9 dans le -2- lainage Rep 4. La rondelle est alors emprisonnée entre oeilleton et la chape. Un coup de marteau sur l'axe permet d'écarter la rondelle et de positionner la gorge Rep 7 sous le ressort Rep 9 assurant ainsi la liaison de l'axe. Le chanfrein Rep 8 facilite la pénétration de identical links to figure 2. The eyepiece Rep 3 of the right part is introduced into the clevis Rep 1 of the left part after having housed the spring washer Rep 9 in the woolen fabric Rep 4. The washer is then trapped between eyecup and yoke. A hammer blow on the axis allows to separate the washer and to position the groove Rep 7 under the spring Rep 9 thus ensuring the connection of the axis. The Rep 8 chamfer facilitates the penetration of
l'axe dans la rondelle.the axis in the washer.
Lorsque l'ensemble est monté, aucun élément de clavetage n'est en contact avec le When the assembly is assembled, no keying element is in contact with the
milieu abrasifni avec les maillons de la chaîne. abrasive medium with the chain links.
Le démontage s'effectuera en frappant à l'aide d'un marteau sur un chasse Disassembly will be carried out by striking with a hammer on a flush
goupille, une tige métallique ou un boulon placé sur l'axe Rep 6. pin, a metal rod or a bolt placed on the axis Rep 6.
Une variante figure 4 montre la possibilité de n'avoir qu'un seul axe à démonter, A variant in FIG. 4 shows the possibility of having only one axis to dismantle,
l'autre étant fixé par soudure.the other being fixed by welding.
Le dispositif doit être dimensionné pour reprendre les charges admissibles dans la The device must be sized to take up the admissible loads in the
chaîne.chain.
-3 --3 -
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9905425A FR2792984A1 (en) | 1999-04-27 | 1999-04-27 | Device for replacement of worn chain link operating in abrasive environment comprises two half-links with clevis and eye ends and transverse cotter and spring washer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9905425A FR2792984A1 (en) | 1999-04-27 | 1999-04-27 | Device for replacement of worn chain link operating in abrasive environment comprises two half-links with clevis and eye ends and transverse cotter and spring washer |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2792984A1 true FR2792984A1 (en) | 2000-11-03 |
Family
ID=9545008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9905425A Withdrawn FR2792984A1 (en) | 1999-04-27 | 1999-04-27 | Device for replacement of worn chain link operating in abrasive environment comprises two half-links with clevis and eye ends and transverse cotter and spring washer |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2792984A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1300604A3 (en) * | 2001-10-04 | 2004-01-28 | Yutaka Hara | Loop chain structure |
CN103979397A (en) * | 2014-05-30 | 2014-08-13 | 江苏海事职业技术学院 | Shackle |
-
1999
- 1999-04-27 FR FR9905425A patent/FR2792984A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1300604A3 (en) * | 2001-10-04 | 2004-01-28 | Yutaka Hara | Loop chain structure |
CN103979397A (en) * | 2014-05-30 | 2014-08-13 | 江苏海事职业技术学院 | Shackle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |