DE955549C - Gripper for soaking furnace cranes - Google Patents
Gripper for soaking furnace cranesInfo
- Publication number
- DE955549C DE955549C DEM25955A DEM0025955A DE955549C DE 955549 C DE955549 C DE 955549C DE M25955 A DEM25955 A DE M25955A DE M0025955 A DEM0025955 A DE M0025955A DE 955549 C DE955549 C DE 955549C
- Authority
- DE
- Germany
- Prior art keywords
- pliers
- nut
- cranes
- gripping
- legs
- 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
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/04—Handling or stripping castings or ingots
-
- 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
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
Es sind Greifzangen für Tiefofenkräne u. dgl. bekannt, bei denen der Stahlblock durch die mit Körnerspitzen versehenen Zangenschenkel gefaßt wird, die mittels Rollen in schrägen Gleitbahnen laufen und deren Drehpunkte durch eine Traverse verbunden sind. Die Traverse ist als Parallelogrammschere ausgebildet und kann durch eine Gewindespindel mit Rechts- und Linksgewinde gespreizt werden. Die Gewindespindel ist in der Zangensäule angeordnet und wird über einen Vierkant angetrieben, der in einer Führung gleitet.There are gripping tongs for deep furnace cranes and the like. Known in which the Steel block is grasped by the tong legs provided with center punch, the run by means of rollers in inclined slideways and their pivot points through a traverse are connected. The traverse is designed as a parallelogram scissors and can go through a threaded spindle with right-hand and left-hand thread can be expanded. The lead screw is arranged in the pliers column and is driven by a square, the slides in a guide.
Diese Konstruktion wird erfindungsgemäß dadurch verbessert, daß auf der Gewindespindel eine Mutter läuft, die über flexible, nicht starre Elemente mit den Zangenschenkeln in Verbindung steht. Als flexible Elemente werden Ketten verwendet, die oberen Enden der Zangenschenkel werden durch Druckfedern gegeneinander verspannt. Unterhalb der Mutter ist eine Rolle angeordnet, über die die flexiblen Elemente wechselweise laufen, oder es befinden sich hier mehrere Rollen, für jedes Elementenstück eine.This construction is improved according to the invention that on the threaded spindle runs a nut that has flexible, non-rigid elements the pliers legs is in connection. Chains are used as flexible elements, the upper ends of the pliers legs are braced against each other by compression springs. Below the nut is a roller over which the flexible elements run alternately, or there are several roles here, for each element piece one.
Diese Erfindung hat gegenüber den bekannten Vorrichtungen den Vorteil, daß die Schließkräfte restlos und gleichmäßig für das Fassen des Blockes ausgenutzt werden können. Es finden also nicht wie bei der Verwendung von Parallelogrammen Kräftezerlegungen statt, wobei sich entsprechend der verschiedenen Spreizung der Parallelogramme auch noch diese Kräftezerlegungen ändern. Der Verstellmechanismus kann bei dieser erfindungsgemäßen Zange bedeutend leichter gehalten werden, und damit wird die gesamte Zangenvorrichtung als solche einfacher und leichter. Außerdem kann man auch die Zangenweite von nahezu dem Wert Null bis zum Höchstmaß ausnutzen. Es findet keine Behinderung durch das Parallelogramm statt.This invention has the advantage over the known devices that the closing forces are fully and evenly used to grasp the block can be. So it doesn't find anything like using parallelograms Separation of forces takes place, whereby the different spreads of the Parallelograms also change this decomposition of forces. The adjustment mechanism can be held significantly easier with these pliers according to the invention, and this makes the entire forceps device as such simpler and lighter. aside from that you can also use the clamp width from almost zero to the maximum. There is no obstruction by the parallelogram.
In der Zeichnung ist beispielsweise der Erfindungsgegenstand schematisch dargestellt.The subject matter of the invention is shown schematically in the drawing, for example shown.
Auf einer Gewindespindel i, die in einem Zangenkopf 2 untergebracht ist, läuft eine Mutter 3, die über Ketten q. mit den Zangenschenkeln 6 in Verbindung steht. Die Ketten q. werden hierbei über eine Rolle 7 geführt. Mittels Druckfedern 8, die sich am Zangenkopf a abstützen, wird auf die Zangenschenkel 6 eine konstante Spreizkraft ausgeübt.On a threaded spindle i, which is housed in a pliers head 2 is, a nut 3 runs over chains q. with the pliers legs 6 in connection stands. The chains q. are here guided over a roller 7. By means of compression springs 8, which are supported on the pliers head a, is a constant on the pliers legs 6 Spreading force exerted.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM25955A DE955549C (en) | 1955-02-01 | 1955-02-01 | Gripper for soaking furnace cranes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM25955A DE955549C (en) | 1955-02-01 | 1955-02-01 | Gripper for soaking furnace cranes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE955549C true DE955549C (en) | 1957-01-03 |
Family
ID=7299688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM25955A Expired DE955549C (en) | 1955-02-01 | 1955-02-01 | Gripper for soaking furnace cranes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE955549C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3250229A (en) * | 1962-11-13 | 1966-05-10 | Kalamazoo Mfg Company | Tie and rail raising and tamping machine |
-
1955
- 1955-02-01 DE DEM25955A patent/DE955549C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3250229A (en) * | 1962-11-13 | 1966-05-10 | Kalamazoo Mfg Company | Tie and rail raising and tamping machine |
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