DE260212C - - Google Patents
Info
- Publication number
- DE260212C DE260212C DENDAT260212D DE260212DA DE260212C DE 260212 C DE260212 C DE 260212C DE NDAT260212 D DENDAT260212 D DE NDAT260212D DE 260212D A DE260212D A DE 260212DA DE 260212 C DE260212 C DE 260212C
- Authority
- DE
- Germany
- Prior art keywords
- crosshead
- crane
- rotatable
- slip ring
- spindle
- 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.)
- Active
Links
- 239000007787 solid Substances 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/20—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures
- B66C23/201—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures with supporting couples provided from above, e.g. by ceilings of buildings
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Bei elektrischen Drehkranen mit Stromzuführung von oben macht sich eine gewisse Schwierigkeit bemerkbar, wenn die Kranspin del in dem Querhaupt des drehbaren Kranteils endigt. Man kann dann wohl den einen Teil der Schleifringvorrichtung, z. B. die Bürsten, mit dem sich drehenden Querhaupt oberhalb desselben fest verbinden, muß aber dann für die Schleifringe, die sich nicht drehen dürfen,With electric slewing cranes with power supply from above, there is a certain Difficulty noticeable when the crane spindle is in the crosshead of the rotating crane part ends. You can then probably one part of the slip ring device, z. B. the brushes, with the rotating crosshead above the same firmly, but must then for the slip rings that are not allowed to rotate,
ίο von außerhalb her einen festen Stützpunkt schaffen.ίο a fixed base from outside create.
Zu diesem Zweck wird beispielsweise gemäß Fig. ι eine in der Drehmitte des Krans auf dem Querhaupt drehbar stehende Stange a benutzt, die an ihrem unteren Ende die Schleifringe b trägt, während sie mit ihrem oberen Ende c an einer gespannten Leitung d o. dgl. gegen Drehung gesichert ist.For this purpose, in the center of rotation of the crane rotatably standing on the cross-head rod a, for example, according to FIG. Ι used, which carries the slip rings b at its lower end, while its upper end c of a tensioned line d o. The like. is secured against rotation.
Diese gespannte Hochleitung kann unbequem werden. Die vorliegende Neuerung bezweckt daher ihre Beseitigung und erreicht dies dadurch, daß die oberhalb des Querhaupts angeordneten Schleifringe durch eine um dieses herumgehende Vorrichtung mit der unter dem Querhaupt liegenden Kranspindel undrehbar verbunden werden, wodurch somit jeder feste Stützpunkt von außen her überflüssig wird.This tense overhead line can become uncomfortable. The present innovation aims hence their elimination and this is achieved by the fact that the above the crosshead arranged slip rings by a device going around this with the crane spindle located under the crosshead can be connected non-rotatably, which means that any fixed support point from the outside is superfluous will.
Fig. 2 stellt ein Beispiel einer solchen Vorrichtung dar. Mit der Kranspindel ist undrehbar ein Zahnrad α unterhalb des Querhaupts b verbunden. Oberhalb des Querhaupts, auf einer an diesem festen Achse c, befindet sich drehbar ein Zahnrad d von gleieher Größe wie a. Ferner ist am Querhaupt fest ein Lager e mit einer Welle und zwei auf dieser festen gleich großen Zahnrädchen f und g, von denen das eine in das obere Rad d, das andere in das untere Rad a. greift.Fig. 2 shows an example of such a device. A gear α below the crosshead b is non-rotatably connected to the crane spindle. Above the crosshead, on a fixed axis c, there is a rotatable gear wheel d of the same size as a. Furthermore, a bearing e with a shaft and two fixed gears f and g of the same size are fixed to the crosshead, one of which is in the upper wheel d and the other in the lower wheel a. engages.
Hierdurch ist das obere Rad d undrehbar mit dem unteren Rad α und der Kranspindel verbunden; bei einer Drehung des Querhaupts mit seiner Lagerung e bleiben die Räder a und d unverrückt stehen, während die Räder g und f planetenartig um sie herumwandern. As a result, the upper wheel d is non-rotatably connected to the lower wheel α and the crane spindle; When the crosshead with its bearing e rotates, the wheels a and d remain stationary while the wheels g and f wander around them like a planet.
Verbindet man nun einerseits die Bürstenhalter h mit dem Querhaupt, andererseits die Schleifringe i mit dem oberen Rade d, so können die Leitungen ohne weiteres ungespannt an diese angeschlossen werden.If the brush holder h is connected to the crosshead on the one hand, and the slip rings i to the upper wheel d on the other hand, the lines can easily be connected to them without tension.
Die Zahnradverbindung α, g, f, d kann natürlich auch durch andere bekannte Verbindungen, beispielsweise durch Getriebe mit endloser Kette ersetzt werden. In Fällen, wo das Querhaupt keine volle Kreisdrehung zu machen braucht, genügt auch statt der Räderoder Kettengetriebe eine Hebelverbindung, die am Querhaupt ihren Stützpunkt hat, zur undrehbaren Verbindung des Schleifringhalters mit der Kranspindel.The gear connection α, g, f, d can of course also be replaced by other known connections, for example by gears with an endless chain. In cases where the crosshead does not need to make a full circle rotation, a lever connection, which has its support point on the crosshead, is sufficient for the non-rotatable connection of the slip ring holder to the crane spindle instead of the wheels or chain gears.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE260212C true DE260212C (en) |
Family
ID=517867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT260212D Active DE260212C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE260212C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1009378B (en) * | 1954-11-05 | 1957-05-29 | Starkstrom Anlagenbau Rostock | Power supply for electrically driven cranes, especially indoor cranes |
-
0
- DE DENDAT260212D patent/DE260212C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1009378B (en) * | 1954-11-05 | 1957-05-29 | Starkstrom Anlagenbau Rostock | Power supply for electrically driven cranes, especially indoor cranes |
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