BE342332A - - Google Patents
Info
- Publication number
- BE342332A BE342332A BE342332DA BE342332A BE 342332 A BE342332 A BE 342332A BE 342332D A BE342332D A BE 342332DA BE 342332 A BE342332 A BE 342332A
- Authority
- BE
- Belgium
- Prior art keywords
- pulley
- load
- horizontal plane
- point
- remains
- Prior art date
Links
- 239000004576 sand Substances 0.000 claims description 2
- 241001307210 Pene Species 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 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
- B66C23/06—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 with jibs mounted for jibbing or luffing movements
- B66C23/08—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 with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths
- B66C23/10—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 with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths the paths being substantially horizontal; Level-luffing jib-cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
- B66C2700/0307—Cranes in which it is essential that the load is moving horizontally during the luffing movement of the arm or jib
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Description
<Desc/Clms Page number 1>
Grue p@votante à relèvement de la flèche sous charge.
Les grues-pivotantes à relèvement de la flèche sous charge remportent de plus en plus sur les grues normales actuellement en usage dans les porte.
On a déjà proposé de nombreux moyens pour ob- tenir que la charge d'une grue reste dans un plan hori- zontal pendant le relèvement de la flécher
La présente invention a pour objet la disposi- tion à hauteur convenable, sur une charpente, prévue à cet effet, d'une poulie de renvoi sur laquelle passe un câ- ble de levage, la position de la dite poulie étant ohoi sie de telle façon que ,sans que la longueur du câble au** delà de la poulie augmente, la charge reste dans un plan horizontal pendant le mouvement de relèvement de la flèche
<Desc/Clms Page number 2>
Dans les dispositions connues, cette poulie étant généra.' lement placée sur le toit de la grue, ou à proximité de se toit, et l'effet recherché ne pouvait être obtenu.
On voit sur la fig. 1 la flèche de la grue dési- gnée, par la lettre de référence 1, portant., en bout, la poulie de renvoi 5 sur laquelle passe le sable de levage,
Le câble de levage qui s'enroule autour du tam- bour 4, passe, conformément à la présente invention, sur la poulie intermédiaire 3 prévus sur la charpente 2. La portion du câble située depuis la poulie 3 jusqu'à la charge res tant sensiblement constante, lorsque la flèche 1 se soulève, peur venir en 50 dans la position indiquée en traits pont- tués, la charge reste sensiblement dans un plan horizontal.
**ATTENTION** fin du champ DESC peut contenir debut de CLMS **.
<Desc / Clms Page number 1>
P @ voting crane with lifting of the boom under load.
Loaded boom lift slewing cranes are increasingly popular over the normal door cranes currently in use.
Numerous means have already been proposed for ensuring that the load of a crane remains in a horizontal plane during the raising of the jib.
The present invention relates to the arrangement at a suitable height, on a frame provided for this purpose, of a return pulley over which a lifting cable passes, the position of said pulley being such. so that, without increasing the length of the cable ** beyond the pulley, the load remains in a horizontal plane during the raising movement of the boom
<Desc / Clms Page number 2>
In the known arrangements, this pulley being general. ' If placed on or near the roof of the crane, the desired effect could not be achieved.
We see in fig. 1 the jib of the crane designated by the reference letter 1, carrying., At the end, the return pulley 5 over which the lifting sand passes,
The hoisting cable which winds around the drum 4 passes, in accordance with the present invention, over the intermediate pulley 3 provided on the frame 2. The portion of the cable located from the pulley 3 to the load remains substantially constant, when the boom 1 rises, fear to come at 50 in the position indicated in dashed lines, the load remains substantially in a horizontal plane.
** ATTENTION ** end of DESC field can contain start of CLMS **.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
BE342332A true BE342332A (en) |
Family
ID=18829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE342332D BE342332A (en) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE342332A (en) |
-
0
- BE BE342332D patent/BE342332A/fr unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100412984B1 (en) | mobile crane | |
FR2866326A1 (en) | Derrick crane has bracing cable of auxiliary top acting on one side on auxiliary top and on other side acting on bracing cable of main jib | |
BE342332A (en) | ||
CN101528584B (en) | Jib crane | |
EP0978472A3 (en) | Transportable crane | |
NL1010035C2 (en) | Remote-controlled lifting hook. | |
FI79075C (en) | KRAN FOER TUNGA LASTER, SPECIELLT EN HAVSKRAN OCH FOERFARANDE FOER FOERANKRANDE AV DENNA. | |
FR2617822A1 (en) | BOOM ARRANGEMENT FOR CRANES, ESPECIALLY FOR MOBILE CRANES | |
FR2889513A1 (en) | Luffing jib tower crane load controlling method, involves alternatively utilizing two separated load curves depending on radius of crane as result of position of jib, where one curve is obtained by homothetic transformation of other curve | |
WO2017082739A1 (en) | Knuckle-boom crane | |
FI80005B (en) | LYFTKRAN FOER TUNGA LASTER, I SYNNERHET EN HAVSLYFTKRAN, OCH FOERFARANDE FOER DESS FAESTANDE. | |
SU1169931A1 (en) | Arcticulated crane jib | |
FR1449764A (en) | Improvement to tower cranes | |
CN214273555U (en) | Rotary drilling rig and pressurizing device thereof | |
NL193656C (en) | Mooring device. | |
SU1557081A1 (en) | Crane | |
SU385889A1 (en) | DEVICE FOR EQUALIZING BOOM CRANES | |
SU407826A1 (en) | MOUNTING DEVICE OF THE TILT Crane | |
SU139565A1 (en) | Full revolving automotive tower edge | |
FR2471943A1 (en) | SWIVEL CRANE WITH ADJUSTABLE ARROW JOINED ON THE TOWER | |
SU933605A2 (en) | Self-release hook | |
SU384778A1 (en) | ASSEMBLY CRANE ARROW | |
RU2000115417A (en) | ANTI-SUSPENSION | |
JPS6152409A (en) | Cable emergency detachment apparatus | |
SU336261A1 (en) | DEVICE AGAINST SPANKING CRANE MOTORS |