DE1960765A1 - Device for checking overload protection devices on hoists - Google Patents

Device for checking overload protection devices on hoists

Info

Publication number
DE1960765A1
DE1960765A1 DE19691960765 DE1960765A DE1960765A1 DE 1960765 A1 DE1960765 A1 DE 1960765A1 DE 19691960765 DE19691960765 DE 19691960765 DE 1960765 A DE1960765 A DE 1960765A DE 1960765 A1 DE1960765 A1 DE 1960765A1
Authority
DE
Germany
Prior art keywords
pin
hoists
protection devices
overload protection
housing
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.)
Pending
Application number
DE19691960765
Other languages
German (de)
Inventor
Gerhard Reuter
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19691960765 priority Critical patent/DE1960765A1/en
Priority to FR7008514A priority patent/FR2071567A5/fr
Priority to AT233170A priority patent/AT302578B/en
Publication of DE1960765A1 publication Critical patent/DE1960765A1/en
Pending legal-status Critical Current

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
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks
    • B66C1/40—Crane hooks formed or fitted with load measuring or indicating devices
    • 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
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/02—Hoists or accessories for hoists

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Safety Of Cranes (AREA)

Description

Erweiterung der Patentanmeldung Einrichtung zum Überprüfen von Überlastsicherungen an Nebezeugen Die Abbildung 5 zeigt ein speziell für die Praxis der Turmdrehkranprüfung eingerichtetes Ausführungsbeispiel. Die Ziffernbezeichnung beginnt hier wieder mit 1, da die anordnung prinzipiell etwas abgewandelt ist.Extension of the patent application. Device for checking overload protection devices on ancillary equipment Figure 5 shows a test designed specifically for tower crane testing established embodiment. The number designation starts here again with 1, because the arrangement is slightly different in principle.

In eine Gehäuse (1) ist ein Anker (2) verschieblioh eingesetzt. Xm Anker ist oben die Einhängeöse (3) angebracht. Das Gehause besitzt unten einen Querbolzen (4), in dem ein Lasthaken befestigt wird. Am Gehäuse befindn sich vier Gewindebuchsen (5), in die jeweils ein Paar zusammengehörige und gegenüberliegende laßschrauben (6 u.7) mit j\ufnahmebohrungen (8 u.9) für je einen Abscherstift (10 u. 11) eingeschraubt werden. Im Anker sind zwei Scherbüchsen eingesetzt, wovon eine (12) fest eingesetzt und die andere (13) eine Bewegung in einem Langloch (14) ausführen kann.An armature (2) is inserted displaceably into a housing (1). Xm The suspension eye (3) is attached at the top of the anchor. The housing has a cross bolt at the bottom (4), in which a load hook is attached. There are four threaded sockets on the housing (5), in each of which a pair of matching and opposing washer bolts (6 and 7) with mounting holes (8 and 9) for one shear pin (10 and 11) each will. Two shear bushes are used in the anchor, one of which (12) is firmly inserted and the other (13) can perform a movement in an elongated hole (14).

Wird das Prüfgerät in den Lasthaken des zu prüfenden Krans eingehangt und mit seinem Lasthaken an einem Festpunkt oder einer grossen Last angeschlagen, so kann durch das Hubwerk des Krans eine Zugkraft eingebracht werden. Bei Erreichen der zulässigen Belastung - 100 % Nennlast wird der Stift (10) abgeschert. Dieser Stift wird daher auch als Nennlaststift bezeichnet. Nach Abschluß des Sohervorgangs wird der Anker ein Stück aus dem Gehäuse herausgezogen, bis der zweite Stift (11) der sogenannte Überlaststift zum Tragen kommt.If the test device is hung in the load hook of the crane to be tested and attached to a fixed point or a large load with its load hook, in this way a pulling force can be introduced by the hoist of the crane. Upon reaching the permissible load - 100% nominal load, the pin (10) is sheared off. This The pin is therefore also referred to as the rated load pin. After completing the process the armature is pulled a little out of the housing until the second pin (11) the so-called overload pin comes into play.

Hierbei wird eine durch die Einwurfbohrung (15) in das Lan-gloch (14) eingebrachte Platspatrone (16) zur Explosion vmebracht.Here one is inserted through the insertion hole (15) into the Lan-gloch (14) introduced flat cartridge (16) to explode.

Dies ist das Signal dafür, dass das IIebezeug die Nennhubkraft überschritten hat.This is the signal that the hoist has exceeded the nominal lifting force Has.

Schaltet nun die Sicherheitseinrichtung des IIebezeugs die tIubbewegung noch nicht ab, so wird bei Uberschreiten einer 110 %igen Nennlast auch der Überlaststift (11) abgeschert.Now the safety device of the hoist activates the lifting movement not yet, the overload pin is also activated when a 110% nominal load is exceeded (11) sheared off.

Nun wird der Anker aus dem Gehäuse weiter herausgezogen, wobei die an beiden Seiten angebrachte Dämpfungseinrichtung, bestehend aus Seilrollen (17), Seilen (18) und Bremsen (19) die Bewegung abfängt, bis der Kranführer das iiubwerk abschaltet.Now the armature is pulled out of the housing further, whereby the Damping device attached to both sides, consisting of rope pulleys (17), Ropes (18) and brakes (19) intercept the movement until the crane operator pulls the bridge turns off.

Die Dämpfungseinrichtung tritt infolge von Langlöchern (20) im Gehäuse (1) erst in Aktion, wenn beide Laststofte abgeschert sind.The damping device occurs as a result of elongated holes (20) in the housing (1) only in action when both load materials have been sheared off.

Die Paßschrauben (6) u. (7) sind gegen solche mit anderen Aufnahmebohrungen (8) u. (9) für andere Scheratifte mit anderen Abscherwerten austauschbar.The close-fitting screws (6) and (7) are opposed to those with different mounting holes (8) and (9) interchangeable for other shear pins with different shear values.

Claims (1)

Weitere PatentansprücheFurther claims (7.) Einrichtung nach Anspruch 1 bis 5, dadurch gekennzeichnest, dass durch die Verwendung von zwei Abscherstiften verschiedene Abscherwerte eine Eingrenzung eines zulässigen Maximallastbereichs des zu prüfenden liebe zeugs möglich wird, wobei der erste Stift den Eintritt in das Toleranzfeld anzeigt, der zweite Stift das Verlassen des Toleranzfeldes.(7.) Device according to claim 1 to 5, characterized in that by using two shear pins with different shear values a limitation a permissible maximum load range of the item to be tested becomes possible, the first pin indicating the entry into the tolerance field, the second pin leaving the tolerance field. 8.) einrichtung nach Anspruch 1 bis 5 und 7, dadurch gekennzeichnet, dass die weitere Auszugsbewegung des Ankers aus dem Gehäuse durch eine aus bekannten Elementen in bekannter weise zusammengesetzte Dämpfungseinrichtung abgefangen wird. 8.) device according to claim 1 to 5 and 7, characterized in that that the further extraction movement of the armature from the housing by a known from Elements is intercepted in a known manner composite damping device. Ansprüche 1 bis 6 befinden sich in der Hauptanmeldung Lee r'seite Claims 1 to 6 are in the main application lee r's side
DE19691960765 1969-03-10 1969-12-03 Device for checking overload protection devices on hoists Pending DE1960765A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19691960765 DE1960765A1 (en) 1969-12-03 1969-12-03 Device for checking overload protection devices on hoists
FR7008514A FR2071567A5 (en) 1969-03-10 1970-03-10
AT233170A AT302578B (en) 1969-12-03 1970-03-12 Device for checking overload protection devices on hoists

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691960765 DE1960765A1 (en) 1969-12-03 1969-12-03 Device for checking overload protection devices on hoists

Publications (1)

Publication Number Publication Date
DE1960765A1 true DE1960765A1 (en) 1971-06-09

Family

ID=5752902

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691960765 Pending DE1960765A1 (en) 1969-03-10 1969-12-03 Device for checking overload protection devices on hoists

Country Status (2)

Country Link
AT (1) AT302578B (en)
DE (1) DE1960765A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2337998A1 (en) * 1973-07-26 1975-02-13 Gerhard Reuter Crane overload protection testing unit - transmits load via lever with bores for shear pin at intervals
WO2009079984A1 (en) * 2007-12-21 2009-07-02 Rag Aktiengesellschaft Tensile-force limiter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2337998A1 (en) * 1973-07-26 1975-02-13 Gerhard Reuter Crane overload protection testing unit - transmits load via lever with bores for shear pin at intervals
WO2009079984A1 (en) * 2007-12-21 2009-07-02 Rag Aktiengesellschaft Tensile-force limiter

Also Published As

Publication number Publication date
AT302578B (en) 1972-10-25

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