EP3768626A1 - Gefederte hebevorrichtung für einen kran - Google Patents
Gefederte hebevorrichtung für einen kranInfo
- Publication number
- EP3768626A1 EP3768626A1 EP19711331.9A EP19711331A EP3768626A1 EP 3768626 A1 EP3768626 A1 EP 3768626A1 EP 19711331 A EP19711331 A EP 19711331A EP 3768626 A1 EP3768626 A1 EP 3768626A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- load
- lifting device
- crane
- spring bearing
- spring
- 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
- 239000000725 suspension Substances 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 208000016261 weight loss Diseases 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
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
- B66C1/40—Crane hooks formed or fitted with load measuring or indicating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
- B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads
Definitions
- the present invention relates to a lifting device for a crane according to the preamble of claim 1.
- Lifting devices for cranes are known in many variants from the prior art.
- When lifting and lowering a load by means of the lifting device of a crane enormous maximum forces can arise.
- In addition to damage to the load to be lifted and the ground, these can also lead to considerable dynamic effects on the entire support or crane structure. This can result in high and sudden stresses and movements (for example, swaying) of the entire crane structure, which adversely affects fatigue strength and handling of the crane.
- a lifting device for a crane which comprises a hoist winch, a hoisting rope and a load receiving means, wherein the load receiving means connected to the hoist rope and by means of the hoist winch movable, in particular vertically movable.
- the lifting device is characterized in that it has at least one spring bearing for the suspension of a load received by the load receiving means. That at least one element of the lifting device is spring-loaded.
- the present invention can also be used in combination with existing cranes or lifting devices and easily retrofitted by attaching the spring suspension according to the invention.
- lifting operation here includes the settling, lifting and moving a load by means of the lifting device.
- crane is used here in the general sense as a device for vertical and / or horizontal loading of loads.
- the load-receiving means comprises a hook bottle and a load hook, wherein the load hook is connected to the hook bottle via the spring mounting.
- the spring bearing is arranged on or in the hook bottle.
- individual elements of the hook bottle such as, for example, the sheaves or a cross-piece connecting several upper parts of the hook bottle, can be spring-loaded.
- the spring bearing is arranged on a Hubseilfestddling, in particular at an attachment point of the hoisting rope on the hoist winch, the load receiving means or the crane structure.
- a swivel catch is furthermore provided, wherein the spring bearing is arranged on or in the swivel catch.
- the spring bearing by a locking mechanism can be determined.
- the spring bearing can be deactivated in certain situations, as a result of which the fleece device according to the invention behaves like a generic braiding device.
- the locking mechanism can be controlled manually or automatically by means of an actuator.
- the spring mounting comprises a mechanical spring, an air suspension or a hydraulic suspension.
- the spring mounting comprises a sensor for detecting the weight and / or an indication of the weight of the load received by the load receiving means.
- the relative distance of the parts connected by the spring bearing or, in the case of a mechanical spring bearing, the deformation of the spring produced by the load can be used for a measurement or indication of the weight of the load.
- the spring bearing is arranged on the hoist winch, wherein preferably the hoist winch with a crane structure of the crane is connectable and the spring bearing is arranged in the attached state between hoist winch and crane structure. In this embodiment, therefore, the hoist winch is spring-loaded.
- the present invention further comprises a crane with a lifting device according to the invention according to one of the previously described embodiments. Obviously, for such a crane, the same advantages and As for the lifting device according to the invention, which is why a repeated description is omitted here.
- FIG. 1 shows a first embodiment of the lifting device of the lifting device according to the invention in a lateral cross-sectional view
- FIG. 2 shows the load receiving means according to FIG. 1 in a frontal cross-sectional view
- FIG. 3 shows a second exemplary embodiment of the load-carrying device of the lifting device according to the invention in a lateral cross-sectional view
- FIG. 4 shows a third exemplary embodiment of the load-carrying device of the lifting device according to the invention in a lateral view
- FIG. 5 the load receiving means according to FIG. 4 in a frontal cross-sectional view
- FIG. 6 shows an embodiment of a swivel catcher of the lifting device according to the invention in a lateral view
- FIG. 7 The swivel catch according to FIG. 6 in a frontal view.
- FIGS. 1 and 2 a first exemplary embodiment of the load-carrying device 10 of the lifting device according to the invention is shown in a lateral and frontal cross-sectional view, the cover which is overhead in plan view being hidden.
- the load-receiving means 10 is a hook-type bottle, as used in various crane types, and comprises a hook-and-loop body 16 in which a sheave 18 and a load hook 14 are mounted are.
- a hoist rope of the crane is reeved (not shown) during operation, which can be retracted and extended by means of a hoist winch (not shown), whereby the hook block 10 is moved vertically.
- About the load hook 14 can take a load to be lifted.
- the load hook 14 of the hook bottle 10 of the lifting device is mounted in the hook bottle body 16 via a spring bearing 12.
- the spring bearing of the load hook 14 results in a sprung suspension of the load to be lifted, as a result of which force peaks, such as those which occur, in particular, during lifting and lowering of the load from or onto the ground, are minimized.
- the spring bearing 12 absorbs such force peaks so that they are not conducted into the crane structure.
- the spring bearing 12 is realized in this embodiment by a mechanical spring 13, which is compressed by the weight of the load hook 14 and the load attached thereto (not shown). The spring force of the spring bearing 12 thus acts against the weight of the load.
- the energy "stored” in the deformation of the spring 13 breaks down in the period between the initial contact of the load with the substrate and the complete relaxation of the spring 13 in accordance with the settling speed.
- the crane design relaxes relatively slowly from the state of stress that occurs during the stroke of the load. has.
- the forces acting on the load and the ground forces are slower and thus gentler than conventional lifting devices that provide no spring bearings 12. A hard impact of the load on the ground is effectively avoided by the lifting device according to the invention.
- a pendulum-induced oscillation of the load during lifting can thereby be significantly reduced.
- the advantages described above are not limited to a spring mounting of the load hook 14 or the use of a mechanical spring 13.
- a behavior of the lifting device according to the invention can also be achieved with other suspension mechanisms, for example with an air or hydraulic spring.
- the spring bearing 12 can be arranged at a different location of the lifting device, or several spring bearings 12, 12 ', 12 "can be used simultaneously.
- Decisive for the advantageous effect of the present invention is that at least one spring bearing 12 is arranged between the load and the crane construction, so that overall there is a spring-mounted mounting of the load during the stroke.
- the spring bearing 12 may also be designed to be rotatable, so that the parts connected by the spring bearing 12 can rotate against each other.
- a lockable or torsionally stiff spring mounting 12 is also conceivable.
- FIG. 3 shows a second exemplary embodiment of a hook block 10 'of the lifting device according to the invention in a lateral cross-sectional view.
- the hook block 10 ' has two Hakenflaschenkorpusse 16', in each of which a pulley 18 is rotatably mounted and which are connected by a cross member 20 mitei- each other.
- the overhead cover of the left hook bottle body 16 'and of the left part of the cross member 20 is hidden.
- the load hook 14 ' is connected via a spring bearing 12 on or in the traverse 20 stored.
- the traverse 20 is in turn at its two ends via bolts 24 vertically slidably in slots 22 of the two Hakenflaschenkorpusse 16 'stored GE.
- FIGs 4 and 5 a third embodiment of a hook bottle 10 "of the lifting device according to the invention is shown in each case in a lateral and frontal view.
- the hook block 10 “comprises a lower, a middle and an upper hook bottle part 26, 28, 30.
- the upper hook bottle piece 30 is connected to the crane construction, for example via a trolley (not shown) displaceable along the crane boom.
- the middle hook bottle part 28 is connected via a spring bearing 12 "with the upper hook bottle part 30 and thus spring-loaded.
- each pulleys 18 are rotatably mounted, in which the hoisting rope is reeved according to the pulley principle (not shown).
- the lower and middle hook bottle part 26, 28 are thus connected to each other only via the retracted hoist rope and change their relative distance during the lifting operation.
- the lower hook bottle portion 26 of the load hook 14 is resiliently mounted on a further spring support 12.
- both spring bearings 12, 12 are realized by mechanical springs 13, 13".
- a swivel catcher 20 of the lifting device according to the invention is shown in each case in a side and frontal view.
- the swivel catch comprises a first swivel catch part 42, which is rotatably mounted in a second swivel catch part 44, and a spring bearing 12, which is arranged between the two swivel catch parts 42, 44.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018106729.1A DE102018106729A1 (de) | 2018-03-21 | 2018-03-21 | Gefederte Hebevorrichtung für einen Kran |
PCT/EP2019/056391 WO2019179870A1 (de) | 2018-03-21 | 2019-03-14 | Gefederte hebevorrichtung für einen kran |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3768626A1 true EP3768626A1 (de) | 2021-01-27 |
Family
ID=65802095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19711331.9A Pending EP3768626A1 (de) | 2018-03-21 | 2019-03-14 | Gefederte hebevorrichtung für einen kran |
Country Status (5)
Country | Link |
---|---|
US (1) | US11932516B2 (de) |
EP (1) | EP3768626A1 (de) |
CN (1) | CN112154116A (de) |
DE (1) | DE102018106729A1 (de) |
WO (1) | WO2019179870A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN118083769B (zh) * | 2024-04-29 | 2024-07-02 | 科捷(河南)起重机械有限公司 | 一种混凝土预制箱梁吊装设备 |
Citations (7)
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---|---|---|---|---|
GB190224244A (en) * | 1902-11-05 | 1903-11-05 | Deseniss & Jacobi Ag | Appliance for Registering the Number of Times a Crane, Weighing Machine, or the like has been used, applicable to other Manifestations of Force. |
US3512657A (en) * | 1967-09-21 | 1970-05-19 | Hydranautics | Motion takeup device |
US3621756A (en) * | 1969-05-20 | 1971-11-23 | Ingersoll Rand Co | Load balancer |
US3792787A (en) * | 1973-06-19 | 1974-02-19 | Us Army | Method of lifting a heavy component for sensitive engagement with another |
US3894476A (en) * | 1974-04-05 | 1975-07-15 | Us Energy | Self-adjusting load balancing pneumatic hoist |
WO2006120363A1 (fr) * | 2005-05-12 | 2006-11-16 | Airbus France | Dispositif d'élinguage d'une pièce avec compensation d'effort et système de levage le comprenant |
WO2014098568A1 (en) * | 2012-12-21 | 2014-06-26 | H. Schinkel Holding B.V. | Spring balanced support device |
Family Cites Families (33)
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GB191324244A (en) | 1912-08-06 | 1914-05-07 | Hermann Quegwer Maschinenfabri | Improvements in or relating to Mowing or Harvesting Machines. |
US1713586A (en) * | 1927-07-20 | 1929-05-21 | Oklahoma Iron Works | Tackle block |
US2664175A (en) * | 1945-04-28 | 1953-12-29 | Byron Jackson Co | Hook locking mechanism |
US2613981A (en) * | 1947-05-02 | 1952-10-14 | Regan Forge & Eng Co | Hook |
US2576261A (en) * | 1948-11-08 | 1951-11-27 | Regan Forge & Eng Co | Hook |
DE1021994B (de) * | 1955-08-03 | 1958-01-02 | Maschf Augsburg Nuernberg Ag | Greiferhubwerk fuer Vierseilgreifer mit UEberlastungsschutzvorrichtung |
US2980400A (en) * | 1957-02-05 | 1961-04-18 | Armco Steel Corp | Hook-block assembly |
US3037803A (en) * | 1958-12-12 | 1962-06-05 | Joy Mfg Co | Traveling block with variable air spring |
US3032364A (en) * | 1958-12-12 | 1962-05-01 | Joy Mfg Co | Swivelled hook for a travelling block |
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US3612596A (en) * | 1969-10-16 | 1971-10-12 | Dresser Ind | Hook lock for traveling block |
DE2133813B2 (de) * | 1971-07-07 | 1975-09-11 | Siemag Transplan Gmbh, 5931 Netphen | Katzfahrzeug |
JPS564717Y2 (de) | 1975-08-12 | 1981-02-02 | ||
FR2379466A1 (fr) * | 1977-02-02 | 1978-09-01 | Debor Ets | Dispositif de levage et de manutention a moyens de pesage incorpores |
FR2414192A2 (fr) * | 1978-01-04 | 1979-08-03 | Charlet Sa | Crochet de levage avec indicateur de charge |
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CN204138162U (zh) * | 2014-10-11 | 2015-02-04 | 太原重工股份有限公司 | 一种起重机减振吊具 |
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-
2018
- 2018-03-21 DE DE102018106729.1A patent/DE102018106729A1/de active Pending
-
2019
- 2019-03-14 CN CN201980033782.XA patent/CN112154116A/zh active Pending
- 2019-03-14 EP EP19711331.9A patent/EP3768626A1/de active Pending
- 2019-03-14 WO PCT/EP2019/056391 patent/WO2019179870A1/de unknown
- 2019-03-14 US US16/982,268 patent/US11932516B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190224244A (en) * | 1902-11-05 | 1903-11-05 | Deseniss & Jacobi Ag | Appliance for Registering the Number of Times a Crane, Weighing Machine, or the like has been used, applicable to other Manifestations of Force. |
US3512657A (en) * | 1967-09-21 | 1970-05-19 | Hydranautics | Motion takeup device |
US3621756A (en) * | 1969-05-20 | 1971-11-23 | Ingersoll Rand Co | Load balancer |
US3792787A (en) * | 1973-06-19 | 1974-02-19 | Us Army | Method of lifting a heavy component for sensitive engagement with another |
US3894476A (en) * | 1974-04-05 | 1975-07-15 | Us Energy | Self-adjusting load balancing pneumatic hoist |
WO2006120363A1 (fr) * | 2005-05-12 | 2006-11-16 | Airbus France | Dispositif d'élinguage d'une pièce avec compensation d'effort et système de levage le comprenant |
WO2014098568A1 (en) * | 2012-12-21 | 2014-06-26 | H. Schinkel Holding B.V. | Spring balanced support device |
Non-Patent Citations (1)
Title |
---|
See also references of WO2019179870A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20210139289A1 (en) | 2021-05-13 |
DE102018106729A1 (de) | 2019-09-26 |
CN112154116A (zh) | 2020-12-29 |
WO2019179870A1 (de) | 2019-09-26 |
US11932516B2 (en) | 2024-03-19 |
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