BE549657A - - Google Patents
Info
- Publication number
- BE549657A BE549657A BE549657DA BE549657A BE 549657 A BE549657 A BE 549657A BE 549657D A BE549657D A BE 549657DA BE 549657 A BE549657 A BE 549657A
- Authority
- BE
- Belgium
- Prior art keywords
- crane
- dredge
- mechanisms
- ring
- upper frame
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000000284 resting effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
- E02F9/12—Slewing or traversing gears
- E02F9/121—Turntables, i.e. structure rotatable about 360°
-
- 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
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
-
- 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
- F16C19/50—Other types of ball or roller bearings
-
- 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
- F16C2350/00—Machines or articles related to building
- F16C2350/26—Excavators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
Description
<Desc/Clms Page number 1>
L'on utilise fréquemment,pour l'entraînement des divers mécanis- mes de commande et de déplacement d'une grue mobile, un moteur commun. La transmission du moment de rotation, de celle des parties mobiles entre elles de la grue qui porte le moteur aux mécanismes de l'autre partie de la grue, avait lieu jusqu'à présent par le centre de rotation de la partie tournan- te. Il se présentait cependant souvent des difficultés, car par ce centre de rotation doivent également passer les organes de commande des mécanis- mes d'actionnement, des conduites hydrauliques, pneumatiques et électri- ques, etc ,
L'invention procure un agencement dans lequel la transmission du moment de rotation de la partie fixe vers la partietournante de la grue, ou inversement, a lieu en dehors du centre de rotation,
de telle sorte que celui-ci reste libre pour le passage de conduites et d'organes de commande.
L'invention propose dans ce but l'utilisation d'un anneau denté disposé à rotation concentriquement autour de .l'axe de rotation de la grue, anneau denté avec lequel engrènent, d'une part, un pignon relié à la machine d'en- traînement et, d'autre part, un certain nombre, correspondant au nombre de mécanismes de commande, de pignons qui, par l'intermédiaire d'embrayages commandés et - si nécessaire - de systèmes de renversement de marche, sont reliés aux mécanismes de commande correspondants.
L'anneau denté est mis en rotation par le pignon de la machine d'entraînement et entraîne à son tour les pignons des mécanismes de comman- de. Si l'un de ces mécanismes doit être mis en action, il suffit de le mettre en liaison, par l'embrayage, avec son pignon correspondant.
Dans le dessin annexé:
La. figure 1 est une vue de dessus d'un exemple de réalisation de l'invention.
La figure 2 est une vue en coupe transversale correspondant à la figure 1. '
Dans ces figures, 1 désigne le châssis inférieur et 2 la partie tournante d'une grue ou drague. La partie tournante 2 s'appuie.par l'ar- ticulation rotative à billes 3, sur le châssis inférieur 1. L'anneau in- terne de ce palier à billes 3 forme simultanément l'anneau extérieur d'un palier à billes pour l'anneau denté 4, avec lequel engrène le pignon d'en- traînement 5 de la machine d'entraînement (non représentée) 6 désigne les pignons d'entraînement, coopérant avec le même anneau denté, pour les di- vers mécanismes de commande disposés dans le bâti supérieur de la grue.
Le pignon d'entraînement pour le mécanisme de déplacement est représenté en 8.
Le dessin montre clairement que l'agencement suivant l'invention laisse libre, au centre de rotation de la grue, un large espace pour le pas- sage des organes de commande et autres et qu'en outre, par le déplacement des moyens servant à la transmission du moment de rotation, l'on dispose d'un espace suffisant pour cet agencement et un montage et démontage aisé des mécanismes de commande.
**ATTENTION** fin du champ DESC peut contenir debut de CLMS **.
<Desc / Clms Page number 1>
A common motor is frequently used for driving the various control and displacement mechanisms of a mobile crane. The transmission of torque, from that of the movable parts of the crane which carries the engine to the mechanisms of the other part of the crane, has hitherto taken place through the center of rotation of the rotating part. Difficulties often arose, however, because this center of rotation must also pass through the control members of the actuating mechanisms, hydraulic, pneumatic and electric lines, etc.
The invention provides an arrangement in which the transmission of the torque from the fixed part to the rotating part of the crane, or vice versa, takes place outside the center of rotation,
so that it remains free for the passage of pipes and control members.
The invention proposes for this purpose the use of a toothed ring arranged to rotate concentrically around the axis of rotation of the crane, toothed ring with which engage, on the one hand, a pinion connected to the machine. drive and, on the other hand, a certain number, corresponding to the number of control mechanisms, pinions which, by means of controlled clutches and - if necessary - reversing systems, are connected to the mechanisms corresponding orders.
The toothed ring is rotated by the pinion of the drive machine and in turn drives the pinions of the control mechanisms. If one of these mechanisms must be put into action, it suffices to put it in connection, via the clutch, with its corresponding pinion.
In the attached drawing:
Figure 1 is a top view of an exemplary embodiment of the invention.
Figure 2 is a cross-sectional view corresponding to Figure 1. '
In these figures, 1 designates the lower frame and 2 the rotating part of a crane or dredge. The rotating part 2 is supported by the rotary ball joint 3 on the lower frame 1. The inner ring of this ball bearing 3 simultaneously forms the outer ring of a ball bearing for the toothed ring 4, with which the drive pinion 5 of the drive machine meshes (not shown) 6 designates the drive pinions, cooperating with the same toothed ring, for the various control mechanisms arranged in the upper frame of the crane.
The drive pinion for the displacement mechanism is shown at 8.
The drawing clearly shows that the arrangement according to the invention leaves free, at the center of rotation of the crane, a large space for the passage of the control members and the like and that, moreover, by the displacement of the means serving to transmission of the torque, there is sufficient space for this arrangement and easy assembly and disassembly of the control mechanisms.
** ATTENTION ** end of DESC field can contain start of CLMS **.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE549657A true BE549657A (en) |
Family
ID=175817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE549657D BE549657A (en) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE549657A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2187670A1 (en) * | 1972-06-06 | 1974-01-18 | Orenstein & Koppel Ag |
-
0
- BE BE549657D patent/BE549657A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2187670A1 (en) * | 1972-06-06 | 1974-01-18 | Orenstein & Koppel Ag |
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