EP3356281A1 - Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane - Google Patents
Mobile crane and method for angling a main jib extension relative to a main jib of a mobile craneInfo
- Publication number
- EP3356281A1 EP3356281A1 EP16797794.1A EP16797794A EP3356281A1 EP 3356281 A1 EP3356281 A1 EP 3356281A1 EP 16797794 A EP16797794 A EP 16797794A EP 3356281 A1 EP3356281 A1 EP 3356281A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- main boom
- extension
- boom extension
- mobile crane
- abwinkelantrieb
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000005452 bending Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 102000004315 Forkhead Transcription Factors Human genes 0.000 description 2
- 108090000852 Forkhead Transcription Factors Proteins 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004904 shortening Methods 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
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/702—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic with a jib extension boom
-
- 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
- B66C23/64—Jibs
- B66C23/68—Jibs foldable or otherwise adjustable in configuration
-
- 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
-
- 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
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
-
- 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
- B66C2700/0392—Movement of the crane arm; Coupling of the crane arm with the counterweights; Safety devices for the movement of the arm
Definitions
- the invention relates to a mobile crane with a rocker mounted thereon and erectable via a luffing cylinder main boom and with a detachable on a
- Main boom head of the main boom via upper and lower bolts connected main boom extension the main boom extension from a basic position after a release of the upper or lower bolt by means of a Abwinkelantriebs about a rocking axis relative to the main boom is angled, the Abwinkelantrieb acts on a foot of the main boom extension, a maximum angle of deflection is limited by an adjustable Abwinkelellasche and the Abwinkellasche at the foot of the main boom extension and the
- the invention relates to a method for bending in a
- Main boom extension relative to a main boom of a mobile crane is
- German Utility Model DE 20 2004 020 760 U1 already discloses a mobile crane with a main boom and a main boom extension fastened to its main boom head.
- the main boom extension is from a home position in which the main boom extension with its
- Longitudinal direction is aligned in extension of the longitudinal direction of the main boom, in a 20 ° position and a 40 ° position tiltable.
- Main boom extension is usually over two lower in the range of lower boom of the main boom extension and two upper in the range of
- the upper boom of the main boom extension bolts arranged releasably attached to the main boom head.
- first step the two upper bolts are pulled and in a second step, hydraulic rocker cylinders, which engage the main boom head and the main boom extension, cause the rocker axes of the two rocker pins to rock from the basic position
- Main boom extension effected.
- the two upper pins are inserted and removed via a hydraulic bolting cylinder.
- a self-sufficient hydraulic unit is arranged at the lower end of the main boom extension.
- Hydraulic unit for example, a diesel engine or electric motor can be used in each case with an associated hydraulic pump.
- the Abwinkellasche is designed as mechanically lockable telescopic device with a tubular guide tab and a guided and extendable therein
- Sliding tab which is also tubular.
- the guide tab has stop apertures for receiving bolts which provide support for the slide tab at its lower end and thus provide a preselected length of the angled tab and thus angular adjustment of the main boom extension.
- the Abwinkellasche is located in the region of a lower flange of the main boom and the main boom extension. The desired angulation is achieved by lifting the main boom, thereby shortening the angled tab until the sliding tab hits and is supported on the bolt.
- European Patent Application EP 2 253 576 A1 discloses another embodiment of an angle bracket for bending a main boom extension of mobile cranes.
- the formed from two angle levers Abwinkellasche has in its basic position corresponding to a 0 ° position of the main boom extension to the main boom, a plurality of pairs of aligned stop openings for bolts.
- the length of the angle bracket can be varied and the main boom extension in various angular positions, preferably 0 °, 20 ° and 40 °, set.
- the actual Abwinkelterrorism the main boom extension is done by means of a hoist located on the crane or next to the crane.
- the main boom extension starting from a basic position by means of a Abwinkelantriebs about a Wippachse relative to the main boom in a mobile crane with a rockable mounted thereon and erectable via a luffing jib Hauptauslegerverinrung be bent relative to the main boom is the angled drive at one foot of the
- Main boom head or main boom extension required.
- the Abwinkein in itself is largely on the floor or the storage position of the main boom, so that it is not necessary to work well above the top of the mobile crane.
- the invention allows the angle of the
- Main boom extension with mobile crane on level ground with horizontally aligned telescopic boom For the last part of the whip extension of the main boom extension into a 20 ° or 40 ° position, the luffing cylinder of the main boom is used. Since the extension of the hydraulic cylinder of the Abwinkelantriebs can be chosen freely, can be configured relatively independent of terrain at a longer chosen extension path of the Abwinkelantrieb.
- Main boom extension compensates. This is especially important for long narrow boom systems. Also, this does not require an auxiliary cylinder over which a fork head offset must be compensated.
- the combination Abwinkellasche consists of a sliding tab, a guide tab and the Abwinkelantrieb, the Abwinkelantrieb drivingly on the one hand on the sliding tab and on the other hand engages the guide tab and the Abwinkelantrieb the sliding tab is displaced relative to the length of the guide tab.
- the Abwinkelantrieb is releasably attached to the sliding latch.
- the sliding tab is guided displaceably in the guide plate and the Abwinkelantrieb is arranged in the guide plate. It is also provided that a maximum over a stop pin
- Displacement of the sliding latch can be limited to the guide plate.
- the rocking axis is formed in the region of the upper belt of the main boom extension or the lower belt of the main boom extension and the combination Abwinkellasche in the region of the lower belt of
- Main boom extension or the upper belt of the main boom extension is arranged.
- Main boom extension about the rocker axis pivotally raised and lowered.
- the Abwinkelantrieb is designed as a hydraulic cylinder with housing and rod.
- two combination Abwinkellaschen are arranged parallel and spaced from each other and the two combination Abwinkellaschen are preferably arranged in corner regions of the main boom extension.
- the combination Abwinkellasche replaced a part of the upper chord or the lower chord of the main boom extension in Area of the foot of the main boom extension.
- the sliding plate is pivotally mounted on the main boom head, the guide plate pivotally mounted on the main boom extension and a plug-in stop pin a maximum displacement of the
- Sliding tab in the guide tab can be limited.
- Main boom extension relative to a main boom of a mobile crane, in particular a previously described mobile crane, wherein the main boom is tiltably mounted on the mobile crane and erectable via a luffing cylinder, the
- Stop pin the maximum extension of the combination Abwinkelellasche and thus the maximum angle of attack, preferably 20 ° or 40 ° is limited.
- a mobile crane is understood as meaning both a mobile telescopic crane and a movable crawler crane with a lattice boom. The invention will be explained in more detail with reference to an embodiment shown in a drawing. Show it:
- FIG. 1 shows a side view of a main boom extension in a basic position on a main boom
- FIG. 2 shows a detailed view of FIG. 1 from the area of the coupling of FIG
- FIG. 3 shows an exploded view of a combination bent-off angle pocket from FIG. 2,
- FIG. 4a is a detail view of a combination Abwinkellasche in the position shown in Figure 1,
- FIG. 4b is a view of Figure 4a with sliding tab and guide tab side by side
- FIG. 5 shows the main boom according to FIG. 1 with the main boom extension in a 15 ° position
- FIG. 6a shows a detail view of a combination angle bracket in the position according to FIG. 5
- FIG. 6b is a side view of Figure 6a with sliding tab and guide tab side by side
- FIG. 7 shows the main boom according to FIG. 1 with the main boom extension in a 40 ° position
- FIG. 8 a shows a detailed view of a combi-angled lug in the position according to FIG. 7 and FIG Figure 8b is a side view of Figure 9a with sliding tab and guide tab side by side.
- FIG 1 is a side view of a main boom extension 1 in
- the main boom 2 is designed as a telescopic boom with a base box 2 b and corresponding telescopic shots 2 c. At the free end of the innermost telescopic section 2c, a main boom head 2a is provided.
- the main boom 2 is part of a telescopic crane, not shown, and is in the usual way via a hydraulic rocker cylinder 7, which is supported on an upper carriage 8 of the telescopic crane, erectable.
- the superstructure 8 is indicated only by a frame part hereof in Figure 1. In the figure 1, the main boom extension 1 and the
- Main boom 2 shown in a so-called stowed position in which the
- Main boom extension 1 with its longitudinal direction v and the main boom 2 with its longitudinal direction h are aligned substantially horizontally.
- a so-called Wippwinkel a of the main boom 2 relative to the superstructure 8 is thus in the stored position 0 °.
- Main boom head 2a is the main boom extension 1 via a
- the main boom extension 1 can be used temporarily or permanently with the telescopic crane to a larger than the largest boom length of the main boom 2 even greater
- This main boom extension 1 is divided into a trained as a lattice mast boom 1 a, which is a truss pipe construction in the usual way, and a subsequent thereto tip 1 b, which is designed as a box boom.
- the main boom 2 and the main boom extension 1 are in Figure 1 in a 0 ° position or normal position in which the longitudinal direction h of the main boom 1 and the longitudinal direction v of the main boom extension 1 are aligned or parallel to each other.
- the main boom extension 1 is tiltable to the main boom 2 about a luffing axis w, which is formed by a lower roll head axis.
- the main boom extension 1 is in this
- Main boom head 2a carried.
- Such main boom extensions 1 are basically constructed as modular systems of individual main elements and can be assembled according to the requirements of their length or load capacity. The single ones
- Main elements have transportable dimensions and are not carried along with the telescopic crane in most cases, but are transported separately. If the axle loads of the telescopic crane and the size of the
- Main boom extension 1 allow, if necessary, the
- Main boom extension 1 are carried. This would then be in a transport position laterally next to and parallel to the main boom 2. A connection of the individual main elements to each other to the desired
- Main boom extension 1 via bolt connections.
- the attachment to the main boom head 2a can be made as a whole element or as a preassembled unit or units.
- FIG. 2 shows a detailed view of FIG. 1 from the area of the coupling of the main boom extension 1 to the main boom 2.
- the two lower bolt connections in the bolting points C and D are designed as a so-called two-pin bolt connection, which is constructed in a corresponding manner substantially from a forked tongue 4a, a lug 4b and a bolt 4c.
- the fork strap 4a with its two opposite
- Holes for the bolt 4 c is in each case in the two Verbolzungsstellen C and D to a foot 1 c of the main boom extension 1 and in extension of the lower chord 1 e of the main boom extension 1 attached.
- the holes in the Fork lug 4a vertically aligned with horizontal main boom extension 1.
- the tab 4b is attached to the main boom head 2a via a lower roller head axle 9a.
- the lower roller head axle 9a is horizontally aligned
- Main boom head 2a aligned horizontally and transversely to the longitudinal direction of the main boom 2 and rotatably mounted in the main boom head 2a.
- the tab 4b is also rotatable about the horizontal lower roller head axle 9a.
- the tab 4b has a bore which is aligned in the mounted position of the main boom extension 1 with the holes of the fork lug 4a.
- a bolt 4c is inserted to fix the main boom extension 1 to the main boom head 2a in a corresponding manner.
- Rollenkopfachse 9a could also be an extra for the connection of
- Main boom extension 1 provided axis corresponding to the
- roller head axle 9a is rotatable and aligned, be present.
- the tab 4b can be attached directly and thus non-rotatably to the main boom head 2a.
- the bore for the bolt 4c in the tab 4b must be aligned horizontally.
- each of the two combination angle brackets 6 has the function of a rigid rod, each with a connecting bore 6r at the end facing the main boom 2 and a connecting bore 6s at the end facing the main boom extension.
- the combination Abwinkellaschen 6 run with their
- Verbolzungsstellen A and B are called a two-pin bolt connection educated.
- a fork lug 4a on the main boom head 2a and a lug 4b is formed by one end of the combination Abwinkellasche 6 in the region of the connecting hole 6r.
- the fork lug 4a has two opposite holes for the bolt 4c.
- the holes in the fork lug 4 a are horizontally aligned with horizontal main boom extension 1.
- the tab 4b has a bore which in the mounted position of the
- Main boom extension 1 with the holes of the fork lug 4a is aligned.
- a bolt 4c is inserted in order to correspondingly the main boom extension 1 on the
- Main boom head 2a to attach.
- each of the combination Abwinkellaschen 6 is connected via a further two-pin-shaped bolt connection in the Verbolzungslitis E and F with the foot 1 c of the main boom extension 1.
- Each of the two bolt connections is characterized by a
- Fork lug 10a which is arranged on the foot 1 c of the main boom extension 1 in extension of the upper belt 1 d.
- the fork lug 10a is comparable to the previously described in connection with the lower flange 1 e fork lug 4a, but the opposite holes of the fork lug 10a are not vertical, but horizontally aligned.
- An engaging in the fork lug 10 a and also designed as a fork flap lug 10 b is attached to the
- Main boom extension 1 facing the end of the combination Abwinkellasche 6 arranged.
- the fork lug 10a and the tab 10b are connected to each other via a bolt 10c, which is aligned horizontally.
- the combination Abwinkellasche 6 is formed of a sliding tab 6b and a guide plate 6d, which are pushed together and against each other.
- the angled drive 6j is disposed in the sliding latch 6b between two sliding shackle parts 6b 'and 6b.
- the figure shows the 0 ° position in which the sliding shackle 6b and the guide shackle 6d are engaged with each other via a lock bolt 6t and a stopper bolt 6h are locked.
- Main boom extension 1 are integrated, are the Verbolzungsstellen C, D, E and F with the lower and upper forked flaps 10a in a joint plane tilted from a vertical, as seen in horizontally oriented main boom extension 1, to the head 1f of the main boom extension 1.
- the upper chords 1 d at the foot 1 c of the main boom extension 1 are shorter than the lower chords 1 e at the foot 1 c of the main boom extension 1 and the upper
- Fork lugs 10a are set back relative to the lower fork lugs 10a.
- the thus specially trained foot 1 c of the main boom extension 1 can also be formed as a foot segment, which can then be followed by other substantially cuboid segments of the main boom extension 1.
- Verbolzungsstellen A to F still another Verbolzungsstelle G, which is arranged in the region of the upper belt 1 d of the main boom extension 1, in a vertical plane with the Verbolzungsstellen C and D and on one of the two sides of the main boom extension 1.
- Verbolzungsstelle G can then serve depending on the side with one of the Verbolzungsstellen C and D as a vertical axis to a main boom extension 1 in a
- the two upper locking bolts 6t are provided at the bolting points A and B in the region of the upper belt 1d of the main boom extension 1 or on the end facing the main boom head 2a and in extension the main boom extension 1 relative to the main boom 2 about the lower roller head axis 9a in the lower bolting points C and D in the region of the lower belt 1 e of the main boom extension 1 by the angle of deflection b can not turn.
- Roller head axle 9a thus forms the teetering axle w.
- the angle of deflection b is usually in the range of 0 ° to 40 °. To limit the angle of deflection b or to be able to set to the usual values of 20 ° and 40 angle of deflection, the two variable-length combination bending angle 6 are provided.
- FIG 3 is an exploded view of a combination Abwinkellasche 6 is shown.
- the active combi Abwinkelellasche 6 consists essentially of a sliding tab 6b, a guide plate 6d and a Abwinkelantrieb 6j.
- the sliding lug 6b which has at its end facing the main boom head 2a the tab 4b with the connecting hole 6r, begins at this end flat profile and extends about a quarter of its length box-shaped with two parallel and spaced-apart flat profile-shaped and side Schiebelaschen kind 6b ', 6b. "This box-shaped formation is provided to receive therebetween the hydraulic cylinder-formed angled drive 6j.
- Each of these sliding-plate portions 6b ', 6b" has, starting from the main boom head 2a, a lock hole 6m for the 0 ° -position of the main boom extension 1 at the beginning thereof spaced apart a bore-shaped first stop opening 6c 'for a 20 ° position of the main boom extension 1 and in turn spaced from a second slot-shaped stop opening 6c for a 40 ° position of the main boom extension.
- the stopper openings 6c and 6c 'each have, on their side facing the main boom extension 1, a semicircular stop surface 6a, 6a' for a stop pin 6h.
- the right locking hole 6c ', 6o for the 0 ° position of the main boom extension 1 also serves as a hole for releasably securing the free end of a rod 61 of the Abwinkelantriebs 6j, if the Abwinkelantrieb 6j is needed.
- the locking bolt 6t shown in Figure 3 with respect to the sliding tab 6b is required only in the 0 ° position of the main boom extension 1, is removed for a start of the Abwinkeins and can be done after a slight Abwinkein the
- Main boom extension 1 for storage are reinserted into the locking hole 6m, provided that the guide plate 6b is no longer in the region of the locking hole 6m with its stop opening 6g.
- a guide plate 6d is shown in addition to the sliding plate 6b, in which the sliding plate 6b is inserted and guided displaceably.
- the guide tab 6d is also box-shaped with a central rectangular guide opening 6f and parallel to each other and from each other
- a slot-shaped stop opening 6g is provided in each case opposite to one another.
- the stop opening 6g has at the ends opposite abutment surfaces 6i, 6i ', where the
- FIG. 3 shows the angular drive 6j in the form of a single hydraulic cylinder with a housing 6k and a rod 61.
- a connecting member 6n is fixed with a bore to connect, if necessary, the hydraulic cylinder via a stop pin 6h as needed with the locking hole 6o of the sliding tab 6b.
- Hydraulic cylinder can be connected, for example, to existing hydraulic circuits. Basically, this is the hydraulic circuit of a Beiziehzylinders for horizontal pivoting a entrained main boom extension from a transport position out.
- the Abwinkelantrieb 6j is dimensioned so that only the weight of the
- Main boom extension 1 can be angled or angled.
- FIG. 4a shows a detailed view of an assembled combination bent-off angle pocket 6 according to FIG. 2 in the locked 0 ° position. In the 0 ° position are the
- Locking bolt 6t and the stopper bolt 6h are inserted into the stopper opening 6g, and the lockup bolt 6t abuts on the front stopper surface 6i 'and the stopper bolt 6h on the rearward stopper surface 6i (see FIG. 3). Even in the 0 ° position, the stop pin 6h already with the
- Connection element 6n are engaged on the rod 61 of the hydraulic cylinder, so that the Abwinkelantrieb 6j is already drivingly connected to the combination Abwinkelellasche 6.
- FIG. 4b shows a view according to FIG. 4a, in which the sliding lug 6b and guide lug 6d are disassembled and thus shown side by side. From this view, it can be clearly seen that in the 0 ° position the right locking bolt 6t and the left stop bolt 6h pass through the stop opening 6g in the guide lug 6d through the locking holes 6o, 6m.
- a deviation of the main boom extension 1 located in the basic position or 0 ° position according to FIG. 1 into a 40 ° position with reference to FIGS. 1 to 8, in particular FIGS. 5 to 8, will be explained below.
- the Abwinkelantrieb 6j which is fixed with its housing 6k together with the guide tab 6d on the bolt 10c on the fork lug 10b of the main boom extension 1, connected to the sliding tab 6b, if the Abwinkelantrieb 6j hereby not yet on the stopper bolt 6h is connected.
- the stop pin 6h is pulled and the retracted Abwinkelantrieb 6j extended until the hole in the connecting element 6n with the locking hole 6o and the stop opening 6g aligned. Then the stop pin 6h is put back. This situation is shown in FIGS. 4a and 4b.
- the Abwinkelantrieb 6j is actuated and the rods 61 of the
- Hydraulic cylinder a little retracted, so that the sliding plates 6b are pulled relative to the guide plates 6d in the direction of the main boom extension 1 and the distance between the Verbolzungsstellen A, B and E, F is reduced and arranged the main boom extension 1 over in the region of the lower chord 1 e lower roller head axles 9a of the bolting points C, D pivots slightly upward.
- the main boom extension 1 is slightly raised, so that the locking pin 6t be relieved in the combination Abwinkellaschen 6. Relieved is also the bolt 10c in joint G between the main boom extension 1 and the main boom head 2a, the
- Pan in or out of the transport position is used.
- This bolt 10c is also removed in the unloaded 0 ° position so that it is not in the later power flow when lifting loads.
- the now relieved locking bolt 6t and the bolt 10c in joint G are then removed.
- Main boom extension 1 is now supported via the two lower pins 4c in combination with the two combination angle brackets 6 on the main boom 2 and the Abwinkelantrieben 6j.
- the lower roller head axle 9a thus forms the
- Verbolzungsstellen E, F and A, B increases and the main boom extension 1 via the arranged in the region of the lower belt 1 e lower roller head axis 9a of the bolting points C, D by the angle of deflection b pivots.
- FIG. 6a shows a detailed view of the combi-angled lug 6 in the 15 ° position according to FIG. 5. It is shown that the rod 61 of the hydraulic cylinder is extended far and the connecting element 6n is still connected to the sliding lug 6b via the stop pin 6h ,
- FIG. 6b shows a view according to FIG. 6a, in which the sliding lug 6b and guide lug 6d are disassembled and thus shown side by side. From this view, it can be clearly seen that in the 15 ° position the right locking bolt 6t is inserted only for storage purposes and without function and the left stop pin 6h through the stop opening 6g in the
- Main boom extension 1 further angled and the tip 1f the
- FIG 8a is a detail view of a combination Abwinkellasche 6 is shown in the position shown in FIG.
- the stopper bolt 6h abuts in the stopper opening 6g on the right stopper surface 6i 'facing the main boom head 2a.
- the stopper pin 6h abuts the left stopper surface 6a 'of the slide plate 6b.
- the maximum displacement possibility of the guide tab 6d is limited to the sliding tab 6b.
- FIG. 8b shows a view according to FIG. 8a in which the sliding lug 6b and guide lug 6d are disassembled and thus shown side by side. From this view it can be clearly seen that the Abwinkelantrieb 6j is still decoupled, since the connection element 6n is away from the stop pin 6h.
- a backward or upright of the main boom extension 1 takes place in the reverse order.
- Main boom 2 is described as a telescopic boom and the skin extension boom 1 as a lattice boom with box top, the invention is also applicable to other embodiments of main boom 2 and skin extension boom 1.
- the main boom 2 may also be a lattice boom or a combination of telescopic boom, lattice boom and / or box boom.
- For the main boom extension 1 are lattice boom or
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015119381.7A DE102015119381B3 (en) | 2015-11-10 | 2015-11-10 | Mobile crane and method for bending a main boom extension relative to a main boom of a mobile crane |
PCT/EP2016/077000 WO2017081019A1 (en) | 2015-11-10 | 2016-11-08 | Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3356281A1 true EP3356281A1 (en) | 2018-08-08 |
EP3356281B1 EP3356281B1 (en) | 2019-08-21 |
Family
ID=57345889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP16797794.1A Active EP3356281B1 (en) | 2015-11-10 | 2016-11-08 | Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane |
Country Status (5)
Country | Link |
---|---|
US (1) | US10647553B2 (en) |
EP (1) | EP3356281B1 (en) |
CN (1) | CN108290723B (en) |
DE (1) | DE102015119381B3 (en) |
WO (1) | WO2017081019A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015119379B3 (en) | 2015-11-10 | 2017-03-30 | Terex Global Gmbh | Mobile crane and method for bending a main boom extension relative to a main boom of a mobile crane |
DE102015120350B3 (en) | 2015-11-24 | 2017-05-24 | Terex Global Gmbh | Mobile crane for bending a main boom extension relative to a main boom of a mobile crane |
DE102016114837A1 (en) | 2016-08-10 | 2018-02-15 | Terex Global Gmbh | Telescopic boom with guy system for a mobile crane and guying system |
DE102017101113B3 (en) | 2017-01-20 | 2018-07-12 | Terex Global Gmbh | Telescopic boom with pole tensioning system for a mobile crane and guying method |
FR3072085B1 (en) * | 2017-10-09 | 2019-11-08 | Manitowoc Crane Group France | CRANE WITH ADJUSTABLE ARROW WITH LOCKING DEVICE OF THE ARROW IN CONFIGURATION RECEIVED |
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2015
- 2015-11-10 DE DE102015119381.7A patent/DE102015119381B3/en active Active
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2016
- 2016-11-08 CN CN201680067947.1A patent/CN108290723B/en active Active
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- 2016-11-08 US US15/774,916 patent/US10647553B2/en active Active
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CN108290723B (en) | 2020-04-21 |
US20180327234A1 (en) | 2018-11-15 |
DE102015119381B3 (en) | 2017-04-27 |
EP3356281B1 (en) | 2019-08-21 |
US10647553B2 (en) | 2020-05-12 |
CN108290723A (en) | 2018-07-17 |
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