EP4087810A1 - Turmkran mit verstellbarem gegenballast - Google Patents
Turmkran mit verstellbarem gegenballastInfo
- Publication number
- EP4087810A1 EP4087810A1 EP21713608.4A EP21713608A EP4087810A1 EP 4087810 A1 EP4087810 A1 EP 4087810A1 EP 21713608 A EP21713608 A EP 21713608A EP 4087810 A1 EP4087810 A1 EP 4087810A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tower crane
- boom
- crane
- counterweight
- length
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 230000008878 coupling Effects 0.000 claims description 38
- 238000010168 coupling process Methods 0.000 claims description 38
- 238000005859 coupling reaction Methods 0.000 claims description 38
- 230000008859 change Effects 0.000 claims description 27
- 230000003197 catalytic effect Effects 0.000 claims 1
- 238000005457 optimization Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000012886 linear function Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 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
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
- B66C23/76—Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
-
- 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
- B66C23/82—Luffing gear
Definitions
- FIG. 1 A second embodiment of the crane according to the invention is shown in FIG. Identical components are marked here with identical reference symbols.
- the mechanical coupling between the adjustable boom 2 and the counterweight 5 is implemented differently here.
- a trolley 40 is used here, to which the counterweight 5 is attached and which is moved on an inclined plane by means of a cable pull system 30a.
- the counterweight 5 is displaced as a function of the length of the boom rocker 2, the length of the coupling cable 30a, the inclination of the track of the trolley 40 and the position of the bearing points of the deflection rollers 30b, 30c and the position of the boom rocker 2 on the frame 1a .
- the distance of the Jacobbal load 5 from the crane axis of rotation 20 is a function of the boom angle a, which is predetermined by the stroke of the adjusting cylinder 8a.
- the dead weight of the displaceable counterweight 5 can take place via a change in its own weight and via a change in the length of the coupling rod 3, similar to what is proposed in the solution in FIG.
- the length of the coupling rod 3 can be adjusted by means of an integral hydraulic cylinder or spindle drive.
- a manual change of the coupling rod length is also conceivable, if this leads out similarly to a turnbuckle or is provided with several bearing bores offset in the axial direction.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020107417.4A DE102020107417A1 (de) | 2020-03-18 | 2020-03-18 | Turmkran mit verstellbarem Gegenballast |
PCT/EP2021/056770 WO2021185884A1 (de) | 2020-03-18 | 2021-03-17 | Turmkran mit verstellbarem gegenballast |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4087810A1 true EP4087810A1 (de) | 2022-11-16 |
Family
ID=75143609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21713608.4A Pending EP4087810A1 (de) | 2020-03-18 | 2021-03-17 | Turmkran mit verstellbarem gegenballast |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230150803A1 (de) |
EP (1) | EP4087810A1 (de) |
CN (1) | CN115298130A (de) |
DE (1) | DE102020107417A1 (de) |
WO (1) | WO2021185884A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114590422B (zh) * | 2022-05-09 | 2022-07-29 | 天津航天机电设备研究所 | 一种用于空间机构复合运动微重力展开的三摇臂试验装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2368268A (en) | 1943-01-04 | 1945-01-30 | Spiegel Philip | Crane and the like load lifting apparatus |
DE3438937C2 (de) | 1984-10-24 | 1996-12-19 | Liebherr Werk Biberach Gmbh | Turmdrehkran mit verstellbarem Gegengewicht |
FR2641773B1 (fr) * | 1989-01-18 | 1991-03-15 | Potain Sa | Grue a fleche relevable avec dispositif de renvoi de fleche |
DE19908485A1 (de) | 1999-02-26 | 2000-08-31 | Man Wolffkran | Wippkran |
CN207209812U (zh) * | 2017-08-21 | 2018-04-10 | 宁夏冠通达电子科技有限公司 | 一种智能配重的动臂式塔吊 |
IL263088A (en) | 2018-11-18 | 2020-05-31 | Sky Line Cranes & Tech Ltd | Luffing crane featuring tipping over balance |
-
2020
- 2020-03-18 DE DE102020107417.4A patent/DE102020107417A1/de active Pending
-
2021
- 2021-03-17 WO PCT/EP2021/056770 patent/WO2021185884A1/de unknown
- 2021-03-17 CN CN202180022060.1A patent/CN115298130A/zh active Pending
- 2021-03-17 US US17/906,610 patent/US20230150803A1/en active Pending
- 2021-03-17 EP EP21713608.4A patent/EP4087810A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2021185884A1 (de) | 2021-09-23 |
CN115298130A (zh) | 2022-11-04 |
DE102020107417A1 (de) | 2021-09-23 |
US20230150803A1 (en) | 2023-05-18 |
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Legal Events
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Effective date: 20240422 |