DE74838C - Trolley with only one roller axle for hoists with double rope - Google Patents

Trolley with only one roller axle for hoists with double rope

Info

Publication number
DE74838C
DE74838C DENDAT74838D DE74838DA DE74838C DE 74838 C DE74838 C DE 74838C DE NDAT74838 D DENDAT74838 D DE NDAT74838D DE 74838D A DE74838D A DE 74838DA DE 74838 C DE74838 C DE 74838C
Authority
DE
Germany
Prior art keywords
trolley
rope
pairs
ropes
hoists
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 - Lifetime
Application number
DENDAT74838D
Other languages
German (de)
Original Assignee
maschinenfabrik rhein und LAHN in Oberlahnstein
Publication of DE74838C publication Critical patent/DE74838C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00Trolleys or crabs, e.g. operating above runways
    • B66C11/16Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
    • B66C11/20Arrangements, e.g. comprising differential gears, enabling simultaneous or selective operation of travelling and hoisting gear; Arrangements using the same rope or cable for both travelling and hoisting, e.g. in Temperley cranes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Description

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

AUSGEGEBEN DEN 2. MAI 1894.ISSUE 2 MAY 1894.

Claims (1)

KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. Bei Verwendung nur eines Lastseiles bei Hebezeugen mit Laufkatze wird die Laufkatze sehr lang und das Seil nach entgegengesetzten Richtungen hin- und hergebogen, wenn man die beiden notwendigen Seilrollen in eine Ebene hinter einander legt (Fig. 1).If only one rope is used for hoists with a trolley, the trolley very long and the rope bent back and forth in opposite directions when one puts the two necessary pulleys in a plane one behind the other (Fig. 1). Setzt man beide Rollen auf eine einzige Achse neben einander, so wird zwar die Laufkatze kurz gebaut und das Seil immer nur in derselben Richtung gekrümmt, Fig. 2; weil aber die beiden Seiltrume nicht in einer Ebene liegen und ihre Spannungen daher ein Kräftepaar bilden, so entsteht ein verdrehendes Moment von bedeutender Gröfse, welches die Katze schief zwängt und sie sich festklemmen läfst.If you put both roles on a single axle next to each other, the trolley is indeed built short and the rope is always curved in the same direction, Fig. 2; but because the two rope strands are not in one plane and their tensions are therefore a couple of forces form, a twisting moment of considerable magnitude arises, which forces the cat crooked and they clamp themselves running. Ordnet man dagegen zwei parallele Lastseile und in der Katze zwei Paar gleichachsige Rollen an, so dafs zwei sich gegenseitig aufhebende Kräftepaare entstehen, so hört jedes Verzwängen der Laufkatze auf, und diese wird aufserdem dadurch noch kleiner, dafs nun dünnere Seile und kleinere Rollen genügen.If, on the other hand, you arrange two parallel load ropes and two pairs of equiaxed ones in the trolley Roll on so that two mutually canceling pairs of forces arise, so each hears Forcing the trolley open, and this also becomes even smaller because of that now thinner ropes and smaller pulleys are sufficient. An Stelle der einzelnen Lastrolle wird ebenfalls ein Rollenpaar am Lasthaken erforderlich, und die Seilenden müssen so befestigt werden, dafs sie gleiche Spannung annehmen..Instead of the individual load roller, a pair of rollers is also required on the load hook, and the ends of the rope must be fastened in such a way that they assume the same tension .. Patent-Ansprüch:Patent claims: Laufkatze mit nur einer Rollenachse für Hebezeuge, dadurch gekennzeichnet, dafs zur Aufhebung der durch die Seilspannungen entstehenden, auf die Laufkatze wirkenden Kräftepaare die Last durch eine gerade Anzahl paralleler Zugorgane gehoben und zur Führung der letzteren eine gleiche Anzahl von Rollenpaaren auf der Laufkatzenachse neben einander angeordnet wird, wobei die nach der Winde laufenden Seile entweder über die.inneren oder äufseren Rollen der einzelnen Rollenpaare geführt und die Enden je zweier Seile am Krahngestell so befestigt sind, dafs ein Spannungsausgleich stattfindet.Trolley with only one roller axis for hoists, characterized in that for Elimination of the force pairs acting on the trolley caused by the rope tension the load is lifted by an even number of parallel pulling members and an equal number of pairs of rollers to guide the latter are arranged on the trolley axis next to each other, with the after the winch running ropes either over the inner or outer pulleys of the individual pulley pairs and the ends of two ropes are attached to the crane frame in such a way that a tension balance is achieved takes place.
DENDAT74838D Trolley with only one roller axle for hoists with double rope Expired - Lifetime DE74838C (en)

Publications (1)

Publication Number Publication Date
DE74838C true DE74838C (en)

Family

ID=347854

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT74838D Expired - Lifetime DE74838C (en) Trolley with only one roller axle for hoists with double rope

Country Status (1)

Country Link
DE (1) DE74838C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243362B (en) * 1963-02-22 1967-06-29 Kocks Gmbh Friedrich Luffing crane with jib weight hanging on the rope

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243362B (en) * 1963-02-22 1967-06-29 Kocks Gmbh Friedrich Luffing crane with jib weight hanging on the rope

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