DE729833C - Bar gripper - Google Patents
Bar gripperInfo
- 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
Links
Classifications
-
- 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
- B66C3/02—Bucket 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)
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)
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 |
-
1934
- 1934-11-07 DE DEG89118D patent/DE729833C/en not_active Expired
Cited By (1)
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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