DE516794C - Slewing gear with ball ring for cranes - Google Patents
Slewing gear with ball ring for cranesInfo
- Publication number
- DE516794C DE516794C DE1930516794D DE516794DD DE516794C DE 516794 C DE516794 C DE 516794C DE 1930516794 D DE1930516794 D DE 1930516794D DE 516794D D DE516794D D DE 516794DD DE 516794 C DE516794 C DE 516794C
- Authority
- DE
- Germany
- Prior art keywords
- slewing gear
- ball
- pieces
- crane
- cranes
- 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
- 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
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/10—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for axial load mainly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/02—Arrangements for equalising the load on a plurality of bearings or their elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Description
Um einen möglichst geringen Kraftverbrauch für das Drehwerk von Drehkranen zu erreichen, sind diese Drehkrane schon häufiger mit Kugelkränzen für die Auflagerung des drehbaren Teiles versehen worden. Da aber die Belastungen, welche die einzelnen Kugeln bekommen, bei vollständig geschlossenen oberen und unteren Kugellagerringen nicht genau bestimmbar sind, so hat man fürIn order to achieve the lowest possible power consumption for the slewing gear of slewing cranes reach, these slewing cranes are more often with ball bearings for support of the rotatable part. But since the burdens that the individual Get balls with the upper and lower bearing rings completely closed are not exactly determinable, one has for
ίο Krane von größerer Tragfähigkeit bisher derartige Kugellager vermieden und statt dessen unter den vier Ecken des Krangerüstes in Balanciers gelagerte Laufrollen vorgesehen. Durch diese Laufrollen baut sich aber das ganze Krangerüst verhältnismäßig hoch, außerdem erfordert ein derartiger Kran auch verhältnismäßig große Kräfte für das Drehwerk. ίο cranes of higher load capacity so far such Ball bearings avoided and instead provided rollers mounted in balancers under the four corners of the crane frame. Due to these rollers, however, the entire crane frame builds up relatively high, In addition, such a crane also requires relatively large forces for the slewing gear.
Um nun eine genaue Bestimmung der Be-In order to get an exact determination of the
ao lastungen der einzelnen Kugeln für derartige Drehwerke zu erreichen, soll gemäß vorliegendem Vorschlag unter den Kranecken ein größerer Balancier vorgesehen werden, an welchem wieder kleinere Balanciers gelagert sind, welche die bogenförmigen Laufringstücke für die Kugeln tragen. Die Ausbildung dieser kleinen Bogenstücke soll so geschehen, daß stets nur zwei Kugeln zum Tragen kommen. Ihre Länge ist deshalb derart bemessen, daß die dritte Kugel bereits aufliegt, bevor die erste Kugel das Bogenstück verlassen hat. Um nun zu verhüten, daß die mittlere Kugel den Druck allein überträgt, wird in der Laufbahn des Bogenstückes eine Aussparung vorgesehen, welche verhindert, daß die mittlere Kugel trägt, wenn die beiden anderen Kugeln aufliegen. Erst wenn die vordere Kugel die Laufbahn verlassen hat, kommt die mittlere Kugel zum Aufliegen. Bei dieser Anordnung ist eine einwandfreie Beanspruchung der Kugeln erreicht.ao to achieve loads of the individual balls for such slewing gear is to be according to the present Proposal to provide a larger balancer under the crane corners, on which smaller balancers are again stored which carry the arcuate raceway pieces for the balls. Training these small pieces of arch should be done so that only two balls to carry come. Their length is therefore such that the third ball is already on top, before the first ball has left the arc. In order to prevent the middle ball transmits the pressure alone, becomes a Recess is provided which prevents the middle ball from bearing when the two rest on other balls. Only when the ball in front has left the track, the middle ball comes to rest. With this arrangement there is a perfect load of the balls reached.
Ein weiterer Vorteil ergibt sich noch dadurch, daß man infolge der kurzen Ausbildung der Bogenstücke leicht an die Kugeln gelangen kann, während es bei durchlaufenden Kugellaufringen unmöglich ist, an die Kugeln zu kommen. In diesem FaE muß stets erst das ganze Kranoberteil abgehoben werden.Another advantage arises from the fact that, as a result of the short training the bow pieces can easily get to the balls while it is passing through Ball races is impossible to get to the balls. In this FaE must the entire upper part of the crane must always be lifted off first.
In der Zeichnung stelltIn the drawing represents
Abb. ι eine Übersichtsskizze dar,
Abb. 2 zeigt die Ansicht eines Teiles des Kugelkranes,Fig. Ι represents an overview sketch,
Fig. 2 shows a view of part of the ball crane,
Abb. 3 eine Draufsicht in verkleinertem Maßstab undFig. 3 is a plan view on a reduced scale and
Abb. 4 einen Querschnitt zu Abb. 1.
Der Druck des Krangerüstes 1 wird an den Endpunkten 2 auf Balanciers 3 über die Bolzen
3« übertragen. Diese stützen sich auf Zwischenbalanciers 4 ab, welche ihrerseits auf
balancierartigen Bogenstücken 5 ruhen. Diese Bogenstücke bilden Teile des oberen Laufringes
eines Kugelkranzes mit den Kugeln 6, dem Käfig 7 und dem unteren Laufring 8. Zwischen den Bogenstücken wird der Kugelkranz
durch Zwischenstücke^ überdeckt.Fig. 4 is a cross-section to Fig. 1.
The pressure of the crane frame 1 is transmitted at the end points 2 to the balancers 3 via the bolts 3 ″. These are supported on intermediate balancers 4, which in turn rest on balancing-like curved pieces 5. These arched pieces form parts of the upper race of a ball ring with the balls 6, the cage 7 and the lower race 8. Between the curved pieces, the ball ring is covered by spacers ^.
Unter jeder Ecke des Krangerüstes sind vier Bogenstücke zu je zwei Kugeln vorge-Under each corner of the crane frame there are four curved pieces with two balls each.
sehen, so daß für die Aufnahme des Eckdrukkes acht Kugeln zur Verfügung stehen. Diese Kugeln werden vollständig gleichmäßig belastet. see, so that eight balls are available for receiving the corner pressure. These Balls are loaded completely evenly.
Um nun bei Schiefstellung des Kranes zu verhüten, daß Seitenkräfte von den Kugeln aufgenommen werden müssen, sind noch vier Zentrierungsrollen io angebracht, welche mittels eines Zapfens 11 an dem Gerüst! ge- lagert sind. Diese Rollen sind an vier Stellen vorgesehen, so daß eine gleichmäßige Zentrierung des oberen drehbaren Teiles erreicht wird. Die Rollen legen sich gegen die am Unterteil 12 ,angebrachten Laufschienen 13.In order to prevent lateral forces from the balls when the crane is tilted must be included, four centering rollers are still attached, which by means of a pin 11 on the frame! ge are stored. These rollers are provided in four places so that they are evenly centered of the upper rotatable part is reached. The rollers lie against the am Lower part 12, attached running rails 13.
Der Antrieb selbst erfolgt durch einen Triebstock 14, welcher mit dem Unterbau fest verbunden ist.:The drive itself is carried out by a headstock 14, which is firmly connected to the substructure is.:
Der Vorteil der Erfindung besteht darin, daß die Kugeln genau berechenbare DrückeThe advantage of the invention is that the balls can be precisely calculated pressures
ao erhalten und außerdem durch die Druckrollen besondere Führungen durch einen zentralen Königstock vermieden werden. Die Laufrollen lassen sich sehr leicht ausbauen, viel leichter als ein Königstock.ao received and also through the pressure rollers special guides through a central Königstock should be avoided. The rollers can be removed very easily, much lighter than a king's stick.
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE516794T | 1930-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE516794C true DE516794C (en) | 1931-01-28 |
Family
ID=6549346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1930516794D Expired DE516794C (en) | 1930-04-12 | 1930-04-12 | Slewing gear with ball ring for cranes |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE516794C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1036487B (en) * | 1953-06-27 | 1958-08-14 | Lauchhammer Maschb Und Stahlba | With a ball or roller ring provided roller bearing for cranes, excavators, swivel bridges or the like. |
| FR2323623A1 (en) * | 1975-09-15 | 1977-04-08 | Tax Hans | ROTATING CRANE FOR HEAVY LOADS |
-
1930
- 1930-04-12 DE DE1930516794D patent/DE516794C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1036487B (en) * | 1953-06-27 | 1958-08-14 | Lauchhammer Maschb Und Stahlba | With a ball or roller ring provided roller bearing for cranes, excavators, swivel bridges or the like. |
| FR2323623A1 (en) * | 1975-09-15 | 1977-04-08 | Tax Hans | ROTATING CRANE FOR HEAVY LOADS |
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