DE729833C - Bar gripper - Google Patents

Bar gripper

Info

Publication number
DE729833C
DE729833C DEG89118D DEG0089118D DE729833C DE 729833 C DE729833 C DE 729833C DE G89118 D DEG89118 D DE G89118D DE G0089118 D DEG0089118 D DE G0089118D DE 729833 C DE729833 C DE 729833C
Authority
DE
Germany
Prior art keywords
gripper
shells
pivot point
distance
bar gripper
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
DEG89118D
Other languages
German (de)
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.)
GUENTER GLUTH
Original Assignee
GUENTER GLUTH
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 GUENTER GLUTH filed Critical GUENTER GLUTH
Priority to DEG89118D priority Critical patent/DE729833C/en
Application granted granted Critical
Publication of DE729833C publication Critical patent/DE729833C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00Load-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
    • B66C3/02Bucket grabs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Description

Stangengreifer Die Erfindung betrifft einen Stangengreifer, insbesondere für Sand, Kohle o..dgl. Bei den bekannten Greifern für derartiges Gut besteht der Mangel, daß sich,die Greiferinuldien trotz große Greifergewichtes nicht hinreichend füllen, sofern das Gut eben ausgebreitet ist. Dies liegt vor allem daran, daß die Konstruktionsteile mit Bezug auf die Schließkurve ungünstig zueinander angeordnet sind.Bar gripper The invention relates to a bar gripper, in particular for sand, coal or the like. In the known grippers for such good there is Deficiency that, despite the large gripper weight, the gripper lines are not sufficient fill, provided that the good is spread out. This is mainly because the Structural parts arranged unfavorably to one another with respect to the closing cam are.

Gemäß der Erfindung werden die Drehpunkte des Greifers derart zueinander angeordnet, daß die Anlenkungspunkte der Schließstangen an den Schalen bei geöffnetem Greifer innerhalb eines Kreisces liegen, der um den Drehpunkt der Schale am unteren Querhaupt bei geschlossenem Greifer mit dem Radius der Hälfte des Abstandes der Muldenschürfkante vom Drehpunkt ' der Schalen am unteren Querhaupt beschrieben isst. Durch eine solche Anordnung wird eine günstige Schließkurve unabhängig vom Greifergewncht :erreicht. Die Verwendung von Leichtmetall im Greiferbau und die Möglichkeit eiher tatsächlich günstigen Gestaltung des Verhältnisses der Todast zur Nutzlast ist damit gegeben.According to the invention, the pivot points of the gripper are mutually related in this way arranged that the articulation points of the locking rods on the shells when open Grippers lie within a Kreisces around the pivot point of the shell at the bottom Crosshead when the gripper is closed with a radius of half the distance of the Troughed scraping edge from the pivot point 'of the shells on the lower crosshead is described. With such an arrangement, a favorable closing curve is obtained regardless of the gripper :achieved. The use of light metal in grab construction and the possibility of it actually favorable design of the ratio of the dead load to the payload is thus given.

In der Zeichnung ist der geschlossene Greifer beispielsweise dargestellt; hierbei ist die Lage des geöffneten Greifers gestrichelt eingezeichnet. Es bezeichnen q. die Greiferschalen, 5 die Anlenkungspumkte der Schließstangen an den Schalen bei geschlossenem Greifer, 5' dieselben Anlenkungspunkte bei geöffnetem Greifer, S den Drehpunkt der Schalen am unteren Querhaupt, a den Abstand der MulJenschürfkante von dem Punkt S und .t' den Abstand der Anlenkungspunkte 5' vom Drehpunkt B.In the drawing, the closed gripper is shown for example; here the position of the open gripper is shown in dashed lines. Designate it q. the gripper shells, 5 the articulation pumps of the locking rods on the shells when the gripper is closed, 5 'the same articulation points when the gripper is open, S the pivot point of the shells on the lower crosshead, a the distance between the mulJ scraping edge from the point S and .t 'the distance between the articulation points 5' from the pivot point B.

Wird der Abstand v so bemessen, daß er geringer als 1/2 a isst, dann ergibt sich für den Greifer eine Schließkurve, die bei einer gegebenen Muldengröße und bei eben ausgebreitetem Gut das Maximum an Füllung des Greifers gewährleistet. Die Schließkurve ist aus der Abbildung ersichtlich.If the distance v is dimensioned so that it eats less than 1/2 a, then there is a closing curve for the gripper, which for a given trough size and guarantees the maximum filling of the gripper when the goods are spread out evenly. The closing curve can be seen in the figure.

Claims (1)

PATENTANSPRUCH: Stangengreifer, gekennzeichnet durch eine solche Anordnung der Drehpwlktc zueinander, daß die Anlenkungspunkte der Schließstangen an den Schalen bei geöffnetem -Greifer innerhalb eines Kreises liegen, der um den Drehpunkt der Schalen am .unteren Querhaupt bei geschlossenen Greifer mit dem Radius der Hälfte des Abstandes der Muldenschürfkante vom Drehpunkt der Schalen am unteren Querhaupt beschrieben ist.PATENT CLAIM: Bar gripper, characterized by such an arrangement the Drehpwlktc to each other that the articulation points of the locking rods on the shells when the gripper is open, lie within a circle around the pivot point of the Shells on the lower crosshead with the gripper closed with a radius of half the distance of the trough scraping edge from the pivot point of the shells on the lower crosshead is described.
DEG89118D 1934-11-07 1934-11-07 Bar gripper Expired DE729833C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG89118D DE729833C (en) 1934-11-07 1934-11-07 Bar gripper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG89118D DE729833C (en) 1934-11-07 1934-11-07 Bar gripper

Publications (1)

Publication Number Publication Date
DE729833C true DE729833C (en) 1942-12-23

Family

ID=7138974

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG89118D Expired DE729833C (en) 1934-11-07 1934-11-07 Bar gripper

Country Status (1)

Country Link
DE (1) DE729833C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE947318C (en) * 1952-12-11 1956-08-16 Conrad Krueger Installation or protective box made of several parts for electrical devices with electrical supply lines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE947318C (en) * 1952-12-11 1956-08-16 Conrad Krueger Installation or protective box made of several parts for electrical devices with electrical supply lines

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