EP0102906B1 - Vorrichtung zum Führen von sich kreuzenden Seilen, insbesondere bei Baggergreifern - Google Patents

Vorrichtung zum Führen von sich kreuzenden Seilen, insbesondere bei Baggergreifern Download PDF

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Publication number
EP0102906B1
EP0102906B1 EP19830401752 EP83401752A EP0102906B1 EP 0102906 B1 EP0102906 B1 EP 0102906B1 EP 19830401752 EP19830401752 EP 19830401752 EP 83401752 A EP83401752 A EP 83401752A EP 0102906 B1 EP0102906 B1 EP 0102906B1
Authority
EP
European Patent Office
Prior art keywords
cables
runners
assemblies
rollers
pair
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.)
Expired
Application number
EP19830401752
Other languages
English (en)
French (fr)
Other versions
EP0102906A1 (de
Inventor
Serge Grapotte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SOCIETE LORRAINE ET MERIDIONALE DE LAMINAGE CONTIN
Original Assignee
LORRAINE ET MERIDIONALE DE LAMINAGE CONTINU - SOLMER Ste
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 LORRAINE ET MERIDIONALE DE LAMINAGE CONTINU - SOLMER Ste filed Critical LORRAINE ET MERIDIONALE DE LAMINAGE CONTINU - SOLMER Ste
Publication of EP0102906A1 publication Critical patent/EP0102906A1/de
Application granted granted Critical
Publication of EP0102906B1 publication Critical patent/EP0102906B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/62—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes for actuating grab buckets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/12—Grabs actuated by two or more ropes
    • B66C3/125—Devices for control

Definitions

  • the invention relates to a device for guiding cables at the intersection of two pairs of cables, in particular unloading bin cables, the cables of the same pair being approximately oriented in the same mean direction which will be qualified to simplify vertical or horizontal.
  • the object of the invention is to propose a simple construction device making it possible to avoid friction of the cables with one another to reduce wear.
  • a completely "floating" cable guide is thus obtained; its position is self-centered and depends only on that of the cables which it guides: it is located at the crossing point of these. This crossing point moves in function the degree of opening of the bucket and its position on the ore heap.
  • the cable guide moves in space according to the position variations of this point, thus eliminating inter-cable friction.
  • the cables therefore themselves guide their protection.
  • the cable guide comprises three substantially parallel discs forming between them the two distinct levels where the two sets of rollers are located.
  • the two sets of pairs of rollers are oriented in two perpendicular planes.
  • each pair of rollers is associated with a device allowing and limiting the angular variations of the cables.
  • rollers are rollers with a hyperbolic concave profile.
  • the cable guide 1 is made up of three parallel discs respectively upper 2, middle 3 and lower 4, made of thick sheet metal. They are interconnected by a welded set of lateral stiffness plates 5 of ribs 6 and spacers 7. A U-shaped iron, 9 reinforces the lower disc 4.
  • two pairs of rollers 8a and 8b with a horizontal axis 10 are held by vertical support plates 11.
  • the two pairs of rollers 8a and 8b serve as a guide for the two strands vertical 12a and 12b of the cables of the bucket.
  • An opening 13 of elongated shape is provided in the upper disc 2 above each pair of rollers 8a and 8b, while a funnel 14 (truncated cone with an apex angle of 11 ° is provided below each pair of rollers to allow and limit the angular displacement of the vertical cables, between the middle plates 3 and lower 4.
  • the cables 12a and 12b guided by the rollers 8a and 8b in their theoretical vertical position occupy a substantially diametral vertical plane of the cable duct (the cutting plane 1-1).
  • rollers 15a and 15b serve as a guide for the two horizontal strands 17a and 17b cables of the bucket.
  • the median discs 3 and lower 4 are folded (see the fold lines 18, fig. 3) so as to form, at least in the region of passage of said horizontal cables of the wings 19 and 20 inclined at 15 ° below and above the mean horizontal plane of the cables.
  • the rollers 8 and 15 have a hyperbolic profile which allows the cables to be guided without bending at an angle of ⁇ 15 °, this angular offset being authorized for the rollers 8 by the funnel 14 downwards and by the total absence walls up, auoique the vertical strands of cable above the cable guide are in principle subject to no angular variation during the operation of the bucket), and for the rollers 15, by the wings 19 and 20.
  • rollers makes it possible to work, in the direction transverse to the slope, with inclinations going up to the position tipper lying on the heap of ore.
  • the centers of the groups of two rollers 8 and 15, and especially of the rollers 8 guiding the vertical cables 12, are determined to be compatible with the variations in the center distance of the vertical strands due to the spacing or the approximation of the pulleys of the following bucket whether it is open or closed.
  • These variations in center distance (which may for example be from 300 mm to 500 mm) linked to variations in height between said pulleys and the horizontal strands (therefore in fact the cable guide) justify taking into account the angular variations of the lower vertical strands of cables 12 .
  • a lifting ring 21 secured to the median disc 3 can be gripped through the upper disc 2 thanks to a central orifice 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Earth Drilling (AREA)

Claims (5)

1. Schwimmende Vorrichtung zum Führen von Seilen am Schnittpunkt von zwei Paaren von Seilen (12, 17), insbesondere von Seilen von Baggergreifern, wobei die Seile desselben Paars ungefähr in derselben mittleren Richtung ausgerichtet sind, mit zwei Anordnungen (8, 15) von zwei Paaren von Führungsrollen (8a, 8b, 15a, 15b), wobei jedes Rollenpaar ein Seil (12a, 12b, 17a, 17b) in der mittleren Orientierungsrichtung des Seils führt, wobei eine deer Anordnungen von Rollen (8a, 8b) sich auf einer Geraden befindet, die zu der Ebene parallel ist, die durch das Paar von Seilen (17a, 17b) bestimmt ist, die von der anderen der angegebenen Anordnungen von Rollen (15a, 15b) geführt sind, und die sich von dieser Ebene unterscheidet.
2. Vorrichtung nach Anspruch 1,
gekennzeichnet durch
drei im wesentlichen parallele Scheiben (2, 3, 4), die untereinander zwei unterschiedliche Niveaus (2-3, 3-4) bilden, wo sich die beiden Anordnungen von Rollen (8, 14) befinden.
3. Vorrichtung nach einem der Ansprüche 1 oder 25 dadurch gekennzeichnet, daß die beiden Anordnungen (8, 15) von Rollenpaaren in zwei zueinander senkrechten Richtungen (I-I, 11-11) ausgerichtet sind.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß jedes Rollenpaar mit einer Vorrichtung (14 19) verbunden ist, die die Winkeländerungen der Seile (12, 14) ermöglichen und begrenzt.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Rollen (8a, 8b, 15a, 15b) Rollen mit konkavem hyperbolischem Profil sind.
EP19830401752 1982-09-08 1983-09-06 Vorrichtung zum Führen von sich kreuzenden Seilen, insbesondere bei Baggergreifern Expired EP0102906B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8215241 1982-09-08
FR8215241A FR2532640A1 (fr) 1982-09-08 1982-09-08 Dispositif de guidage de cables se croisant, notamment de cables de benne de dechargement

Publications (2)

Publication Number Publication Date
EP0102906A1 EP0102906A1 (de) 1984-03-14
EP0102906B1 true EP0102906B1 (de) 1986-02-26

Family

ID=9277301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830401752 Expired EP0102906B1 (de) 1982-09-08 1983-09-06 Vorrichtung zum Führen von sich kreuzenden Seilen, insbesondere bei Baggergreifern

Country Status (3)

Country Link
EP (1) EP0102906B1 (de)
DE (1) DE3362314D1 (de)
FR (1) FR2532640A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105035990A (zh) * 2015-08-24 2015-11-11 华电江苏能源有限公司句容发电厂 一种钢丝绳导向装置及操作方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1351367A (en) * 1918-04-29 1920-08-31 Newton K Bowman Cable-guide
US3787032A (en) * 1972-08-24 1974-01-22 P Bagby Self-releasing and self-lowering block
US3975044A (en) * 1973-08-07 1976-08-17 Dravo Corporation Reeving system for a scissor-type clamshell bucket
GB1545591A (en) * 1977-07-14 1979-05-10 Clarke Chapman Ltd Grab

Also Published As

Publication number Publication date
EP0102906A1 (de) 1984-03-14
FR2532640A1 (fr) 1984-03-09
FR2532640B1 (de) 1985-01-25
DE3362314D1 (en) 1986-04-03

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