CN1044267A - Turning crane with spiral arm turning gear - Google Patents
Turning crane with spiral arm turning gear Download PDFInfo
- Publication number
- CN1044267A CN1044267A CN90100783A CN90100783A CN1044267A CN 1044267 A CN1044267 A CN 1044267A CN 90100783 A CN90100783 A CN 90100783A CN 90100783 A CN90100783 A CN 90100783A CN 1044267 A CN1044267 A CN 1044267A
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- platform
- spiral arm
- turning
- crane
- push
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- 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
- B66C23/88—Safety gear
- B66C23/92—Snubbers or dashpots for preventing backwards swinging of jibs, e.g. in the event of cable or tackle breakage
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
A kind of hoisting crane comprises S. A. 5, and with the radial arm bearing frame 6 that S. A. links to each other, mechanism's platform 7 is loaded on the activity balancing piece 8 on the platform, with S. A. pivotally attached spiral arm 9, spiral arm bont 20 and load bont 24.Hoisting crane of the present invention configuration spiral arm turning gear 16, it is contained on the platform, its rear portion and anterior respectively by bar 14 with comprise that the push and pull system 15 of push rod 37 is suspended on the bearing support, the platform front portion is linked on the S. A. along vertical core 12 by movable axis 13.When spiral arm arrived raised position, supporting member 54 cooperated with push rod, and device is just made opposite continuous movement.The present invention is used for tower and car hosit.
Description
The present invention relates to turning crane, this class hoisting crane comprises the fixing or movable for example vertical tower seat of supporting structure spare, be installed on the parts that vertical pivot rotates, it is made of S. A., radial arm bearing frame, mechanism's platform and spiral arm, described radial arm bearing frame is bearing on the S. A., described mechanism platform is positioned at the S. A. back, its supporting in the past backward and from after the balance block that moves forward, described spiral arm forward and hinge joint level on S. A. connect axial base portion.The invention particularly relates to the spiral arm turning gear, and cooperate with the mechanism platform and to turn round, the purpose that disposes this device is to avoid spiral arm just to drop to the rear portion of bont in raised position, especially externally under the effect of load, for example the fracture of effect of inertia, wind action or hawser is all the more so.
People have understood the dissimilar turning cranes of being furnished with the spiral arm turning gear.
The turning crane of being furnished with the spiral arm turning gear according to first kind of known type, mechanism's platform forms the single unit system of being furnished with the inclined slope frame that has a down dip backward together with S. A., control hawser by one or some one or several pulleys that circle round of process moves the mobile equilibrium piece thereon, it is configured in the front portion of described single unit system, fixed under spiral arm with predetermined hinge joint distance, so that make balance block when spiral arm promotes, do best moving.In this case, the spiral arm that is in raised position just leans against on the springing, and wherein, fixed parts links to each other with radial arm bearing frame or mechanism's platform, movable part just matches with the collision block that is configured on the spiral arm, and progressive application force is applied on the spiral arm jointly to preserve the stable equilibrium.These spring installations can be mechanical parts, and for example spring also can be hydraulic part or pneumatic members, for example jack, or motor machine.The specially for carrying out situation of described these spring installations is described by american documentation literature US4270663; In general, they produce dynamic effect to arm structure, cause the uncontrollable vibration that influences equipment operation simultaneously.
The turning crane of being furnished with the spiral arm turning gear according to second kind of known type, the hoisting crane of the type is described in German patent document DE-A-3438937, in such hoisting crane, mechanism's platform is furnished with supporting member, two curved boom hinge joints thereon, they are configured in the flat-bed both sides, and balance block is equipped with in the end thereafter, and its leading section is linked the spiral arm base portion by the hinge joint pipe link; By the integral structure component that the previous section of arm is formed, pipe link, the base portion of spiral arm and mechanism's platform form variable quadrangle.In this case, the lifting of spiral arm makes the common hinge element rotation of two curved booms on stage support, thereby balance block is moved forward.In lifting process, apply a kind of overturning couple that successively decreases around the hinge element of balance block on supporting member; Promote when finishing, balance block applies a kind of hold torque that increases progressively along the direction opposite with the front then through this hinge element straight-bar, stops spiral arm to continue to do lifter motion, and spiral arm is preserved the stable equilibrium when static.Description by operating condition is found, here opposite with former case, two kinds of equilibrium functions of spiral arm turning gear combination, promptly spiral arm in lifting process equilibrium function and make the rotating equilibrium function of spiral arm when finishing promoting, therefore, this device can not make described two kinds of functions reach optimization.Here, people can notice that also it is all the more so to narrate situation about describing in roughly the same performance, the especially accompanying drawing 2 in british patent document GB-A-930021.
The present invention remedies some defectives of turning crane, and wherein, spiral arm turning gear homostasis piece mobile device does not separately produce uncontrollable vibration.
For this reason, as everyone knows, turning crane of the present invention comprises S. A., the radial arm bearing frame, mechanism's platform, spiral arm, the spiral arm turning gear, the load bont, and the device that balance block is moved, described S. A. is contained on for example vertical tower seat of supporting structure spare, described radial arm bearing frame links to each other with S. A. and slightly recedes, described mechanism platform is positioned at the S. A. back, in the past backward and from after the balance block rotation that moves forward mounted thereto, described spiral arm hinge joint is at the S. A. base portion, the described device that balance block is moved, be by one or the some hawsers that link to each other with the balance block of spiral arm afterbody, balance block is moved along the mechanism's platform that slightly turns forward, this turning crane, it is characterized in that, mechanism platform rear portion is suspended on the radial arm bearing frame by pipe link, and mechanism platform front portion is suspended on the radial arm bearing frame by push and pull system, and it belongs to the spiral arm turning gear, comprise the push rod that is bearing on the push and pull system, it is remained on the radial arm bearing frame by supporting arm, and described mechanism also is furnished with the platform front portion guide apparatus that almost is vertical shape with S. A. horizontal adapter shaft together, otherwise or, its feature also is, the spiral arm afterbody is equipped with supporting member, and when spiral arm was in raised position, it matched with the push rod free end.
The most preferred embodiment according to the present invention, the push and pull system of spiral arm turning gear is made up of one group of rigid member with two bars, form triangular isosceles trapezoid platform (positive three terrace with edges, annotate), on the intermediate altitude of its handle limit hinge joint below the radial arm bearing frame, the big base of first end similar shape rigid member in echelon of other two bars links mutually, and other end hinge joints of described two bars are on two supporting members, its symmetry is fixed on mechanism's platform front part sides, so that it is linked to each other on the routine operation position, the integral structure of described push and pull system is the plane.
The supplemental characteristic according to the present invention, push rod first end hinge joint of spiral arm turning gear is on the cardan axle that the same push and pull system two parts of determining link to each other.
Like this, when promoting end, spiral arm just contacts with the push rod free end, it separates with the arm that is bearing on the radial arm bearing frame, apply a kind of resistance that stops it to continue motion, because push rod is in the cardan axle back that links to each other with push and pull system two parts, under the tension force of the mechanism's platform and the balance block that suspends and main application force, move.
Reasonablely be, at least one push rod length is adjustable in two push rods, and the supporting member of spiral arm afterbody matches with the push rod free end, forms bell guide, two spiral arms on the push rod contacted simultaneously, and have safety performance.
According to other features of the present invention, the adapter shaft for mechanism's platform links to each other with S. A. forms the device that almost is the guide groove of vertical configuration with this adapter shaft, and they are made of the plurality of vertical hole.In this specialized structure, the connecting bridge between mechanism's flat-bed previous section and the S. A. is made of two groups of overcoats and tenon, and its balanced configuration is in hoisting crane turning unit both sides; The big beam end of mechanism's flat-bed forms tenon, and the recovery member on the S. A. forms overcoat.Every kind of overcoat is linked to each other by the axle with two kinds of diameters with tenon, the part that diameter is bigger constitutes the middle body of axle, be included in the flat pieces that has parallel surfaces and two kinds of width on its whole length, it is configured in the interior hole of tenon, and second diameter littler than flat pieces width is the diameter of two terminal parts of axle, it is contained in the overcoat with two parts, and the piston ring that equals the middle body diameter with diameter at least inserts together.
According to supplemental characteristic of the present invention, it is two that mortise becomes, rectangular shaped, and each mortise is equipped with two guide groove slide blocks that middle body is thicker, they vertically are configured in the inside or the both sides in above-mentioned hole, so that dispose the gap that its constant width equals the flat pieces width of adapter shaft betwixt.
When the spiral arm turning gear carried out work, this device can make mechanism's flat-bed previous section move freely in vertical direction along the hinge element with S. A..
In any case, with reference to accompanying drawing, by the embodiment of the turning crane of being furnished with the spiral arm turning gear, this embodiment is unrestricted, and the present invention is described further, and the present invention will better be understood.
Accompanying drawing is as follows:
Fig. 1 is the lateral plan of hoisting crane of the present invention, marks residing two positions of spiral arm among the figure;
Fig. 2 is the simplified side view of hoisting crane upper part, and spiral arm descends;
Fig. 3 is the simplification upward view of hoisting crane upper part (same with Fig. 2);
Fig. 4 is the view that is similar to Fig. 2, spiral arm is shown is in instantaneous raised position, and there, spiral arm contacts with the push rod of spiral arm turning gear;
Fig. 5 is with the similar view in front, spiral arm is shown is in the highest raised position, and the action of spiral arm turning gear on mechanism's platform.
Fig. 6 is the control device that moves of balance block and the transparent view of spiral arm turning gear;
Fig. 7 is the decomposition diagram of connecting bridge between mechanism's platform and the S. A.;
Fig. 8 realizes bonded assembly VIII-VIII section-drawing by visible member among Fig. 7;
Fig. 9 is with the part sectional view of determining the push rod end that the supporting member on spiral arm matches.
See figures.1.and.2 especially, hoisting crane shown in the accompanying drawing comprises the vertical tower seat 1 that is anchored at the ground, or the vertical tower seat 1 that rotates thereon, it utilizes anchor shaft to install again, by orienting device 3 supporting rotating components 4, this turning unit 4 is mainly by S. A. 5, radial arm bearing frame 6, mechanism's platform 7 and spiral arm 9 constitute, and 8 rotations of mobile equilibrium piece are installed on the said mechanism platform 7.
As shown in Figure 3, the radial arm bearing frame 6 with triangle horizontal section is furnished with revolving part forward, and it links to each other with S. A. and recedes.
Mechanism's platform 7 aft section are suspended on the radial arm bearing frame 6 by pipe link 14, mechanism's platform 7 previous sections are suspended on the pivot arm bearing support 6 by the push and pull system 15 with spiral arm turning gear 16, wherein, two crossbeams 10 that the framework of mechanism's platform 7 is linked on the S. A. 5 by tenon 11 constitute, the hole 12 that described tenon 11 is promptly run through by horizontal adapter shaft 13.To be described in detail below.
Spiral arm 9 afterbodys with rectangle or square-section when promoting (referring to Fig. 3), just can make it be connected across the base portion of radial arm bearing frame by the aft section 19 that the support 17 that forms framework links at S. A. 5.
Make the hoisting crane upper part realize mechanization by following apparatus:
-spiral arm hoisting mechanism 20, it is installed in mechanism flat-bed rear portion, and the coiling of control hawser connects the same roller two-phase of passing through the above-mentioned hoisting mechanism of pulley 23 in top of spiral arm, and described pulley 23 is configured in the top of radial arm bearing frame 6;
-load lifting winch 24 also is contained on mechanism's platform 7, the coiling of the hawser 25 on the control roller 26, be configured in the top of radial arm bearing frame 6 through the hawser 25 of angle demodulator 27 and pulley 28, form the hawser between curved an ancient unit of weight 29 and the radial arm bearing frame 6, load is suspended on described curved an ancient unit of weight 29, and described hawser is through the top of spiral arm 9.
The deadweight of spiral arm 9 is by balance block 8 balance in addition, and described balance block rotation is installed in mechanism's platform 7 crossbeams 10 the insides, and it is the inclination alpha that turns forward, this mechanism platform, and leading section is lower than rearward end.
As shown in Figure 6, balance block 8 is made of some continuous members 18, they by be suspended at the small sheave 30 that rotates on the crossbeam 10 mechanism's platform 7 below.At balance position, balance block 8 is kept by balanced configuration one group of two hawser 31 in mechanism's platform 7 both sides, continuous when it through being configured in the pulley 35 at mechanism's platform 7 rear portions, when being configured in the pulley 36 of rear connecting rod 14 intermediate altitudes with continuous process, they are fixed on the balance element 18 of the most close tower seat 1 by member 32, and are fixed on by member 33 on the upper frame 34 of spiral arm 9 afterbodys.
Spiral arm turning gear 16 shown in Fig. 6 is made of the push and pull system of addressing 15 and two push rods 37.
Push and pull system 15 has the triangular of formation isosceles trapezoid platform (positive three terrace with edges by one group, the rigid member 38 of two bars 39 notes) constitutes, its little base is by on the intermediate altitude of member 40 hinge joints below radial arm bearing frame 6, other two bars 41 are by the big base hinge joint of cardan axle 42 similar shapes rigid member 38 in echelon, link to each other with supporting member 44 by the member 43 that suspends, symmetry is fixed on mechanism's platform 7 on the crossbeam 10 of leading section.Two push rod 37 first ends hinge joints are on axle 42, and it connects two parts 38 and 41 of push and pull system 15.On the standard operation position, one group of push and pull system 15 and two push rod 37 that form the plane freely remains on the arm 45, this arm 45 in predetermined stationkeeping on the front surface of radial arm bearing frame, as shown in Figure 2.
As shown in Fig. 7 and Fig. 8, connection between mechanism's platform 7 and the S. A. 5 is realized by the joggle in the overcoat 46 by the adapter shaft 13 with two kinds of diameters, the part 47 that diameter is bigger constitutes the middle body of axle 13, be included in the flat pieces 48 that has two kinds of width of parallel surfaces on its whole length, it is configured in the hole 12 of tenon interior 11, and second diameter littler than flat pieces 48 width is the diameter of two terminal parts 49 of axle 13, it is contained in two supporting members (50 of overcoat 46,51) in, the piston ring 52 that equals middle body 47 diameters with diameter at least inserts together.12 one-tenth in tenon 11 holes are two, rectangular shaped, each mortise is equipped with two guide groove slide blocks 53 that middle body is thicker, and they vertically are configured in the inside or the both sides in above-mentioned hole 12, so that dispose the gap that its constant width " d " equals flat pieces 48 width of adapter shaft 13 betwixt.
The crane operation situation of addressing previously is as follows:
On the position, spiral arm 9 is in low level shown in figure 2, applies a kind of overturning couple of maximum in the hoisting crane front portion; In order to make this moment reach balance, balance block 8 just is in maximum going-back position on mechanism's platform 7, and remains on described position by hawser 31.In this position, push and pull system 15 is the plane, and adapter shaft 13 is in the upper position in the hole 12, and it is contained in the tenon 11 of mechanism's platform 7, and inclination alpha is a maxim.
In the lifting process of spiral arm 9, apply overturning couple by 9 pairs of hoisting crane front portions of spiral arm, gradually reduce.This minimizing is in addition complementary by moving towards balance block 8 fronts at the effect lower edge of its deadweight mechanism platform 7, and wherein, because the existence at inclination angle that is to say that component is parallel to mechanism's platform 7, therefore, tangential component makes hawser 31 keep tensioning states; Along with the aligning to spiral arm 9, the distance of separating with the attachment point 33 of pulley 36 reduces, and balance block 8 is just near vertical tower seats 1.
As shown in Figure 4, when promoting end, spiral arm 9 just contacts with push rod 37 by the supporting member 54 that is fixed on spiral arm 17 afterbodys.Reasonablely be, at least one push rod length is with being regulated as bolt head 55 in two push rods 37, supporting member 54 contacts with push rod 37 free ends 56,57, it forms bell guide 58, so that spiral arm 9 contacted simultaneously with two push rods 37 and have safety performance, as shown in Figure 9.
When spiral arm 9 continuous straightenings, the power that is applied on the push rod 37 just increases, and push and pull system 15 is moved to the back of cardan axle 15; Simultaneously, balance block 8 continues near tower seat 1, and the axle 43 on mechanism's platform 7 be that is to say that push and pull system 15 applies a kind of increasing power, and this increases the resistance that push rod 37 is provided.
When mobile backward, it is non-that the cardan axle 42 of push rod 37 puies forward the previous section of mechanism's platform 7 by push and pull system 15, and described mechanism platform 7 is just by having the guide groove 12 of directional tagging to adapter shaft 13.
As shown in Figure 5, push and pull system 15 no longer is the plane at terminal location, and adapter shaft 13 is arranged in hole 12 low insides that are contained in mechanism's platform 7 tenons 11 to be put, and inclination alpha is a minimum value.At terminal location, axle 13 does not just contact with the end face in hole 12; Like this, mechanism's platform 7 permanent maintenance on radial arm bearing frame 6 suspends.
By making moving with the distortion of push and pull system 15 of balance block 8 carry out mating reaction simultaneously, when continuously the spiral arm outside the perch 9 being aligned, push rod 37 pushes spiral arm 9 forward.When also obtain same result under wind action, spiral arm 9 is pushed to the back of hoisting crane.
Like this, make a kind of turning crane of being furnished with spiral arm turning gear 16, the mobile device of its homostasis piece 8 separately, but cooperating together with mechanism's platform 7 and balance block 8, its operation carries out, so that in raised position, spiral arm 9 firmly keeps balance, does not produce normal running or uncontrollable vibration under the situation of wind is arranged.
Obviously, the present invention is not limited to the embodiment of the slewing crane of addressing previously; On the contrary, the present invention includes remodeling and the application of other structures of doing according to principle of uniformity. Particularly do not exceed the scope of the invention and carry out following improvement:
-by being contained in rotating shaft rather than being contained in some holes of mechanism's platform, or by having the guide apparatus of same function, realize being connected between mechanism's platform and the rotating shaft;
The shape of connecting axle between-change mechanism's platform and the rotating shaft;
The splice position of-Change Example such as member 40 and 43, its can or high or low and or before or after;
-same spiral arm slewing equipment is used for except the slewing crane especially lifting means of automobile (wheel or crawler belt) crane.
Claims (9)
1, the turning crane of being furnished with the spiral arm turning gear, comprise and place for example S. A. (5) on the tower seat (1) of supporting structure spare, same S. A. (5) links to each other and sweptback radial arm bearing frame (6), mechanism's platform (7) that same S. A. (5) rear portion links to each other, rotation is installed in balance block (8) wherein, this balance block (8) in the past backward or from after move forward, spiral arm (9) hinge joint is in the bottom (19) of S. A. (5), the device (20) of bont of spiral arm (20) and hoist load, described hoisting crane also comprises the device that the balance block (8) that slightly turns forward moves along mechanism's platform, it links to each other with the bottom of above-mentioned balance block at spiral arm (9) by one or some hawsers (31), it is characterized in that, mechanism's platform (7) rear portion is suspended at radial arm bearing frame (6) by pipe link (14), the front portion of mechanism's platform (7) links to each other by the turning gear (16) of push and pull system (15) with spiral arm, comprise the push rod (37) that is bearing on the push and pull system (15), when static, remain on the position of radial arm bearing frame (6) by supporting member (45), its front portion also is furnished with the guide apparatus (12) that same S. A. (5) horizontal adapter shaft (3) together almost is vertical configuration, or it is opposite, it is characterized in that, spiral arm (17) afterbody is equipped with supporting member (54), when spiral arm (9) when being in raised position, itself and push rod (37) free end (56,57) match.
2, according to the turning crane described in the claim 1, it is characterized in that, the push and pull system (15) of spiral arm turning gear (16) is made of the rigid member (38) of one group two bars (39), it forms triangular isosceles trapezoid platform (positive three terrace with edges, annotate), on the intermediate altitude of its little base (40) hinge joint below radial arm bearing frame (6), and described one group of big base (42) that forms trapezoidal rigid member (38) links mutually with first free end (41) of other two bars, and other end hinge joints of described two bars are on two supporting members (44), its symmetry is fixed on mechanism's platform (7) front part sides, and above-mentioned one group of planar linkage system (15) is linked to each other in the routine operation position.
According to the turning crane described in the claim 2, it is characterized in that 3, push rod (37) hinge joint of spiral arm turning gear (16) is at first end of cardan axle (42), two members (38,41) of its same push and pull system (15) link to each other.
4, according to described turning crane one of in the aforementioned claim 1 to 3, it is characterized in that at least one push rod length is adjustable in some push rods (37).
5, according to described turning crane one of in the aforementioned claim 1 to 4, it is characterized in that the free end (56,57) of the same push rod of supporting member (54) (37) of spiral arm (17) afterbody matches, it forms bell guide (58).
6, according to described turning crane one of in the claim 1 to 5, it is characterized in that, adapter shaft (3) for the same S. A. of mechanism's platform (7) (5) links to each other forms the guide apparatus that almost is vertical configuration with this adapter shaft, and they are made of plurality of vertical hole (12).
7, according to the turning crane described in the claim 6, it is characterized in that, the anterior connecting bridge of same S. A. (5) mechanism's platform (7) together is made of two groups of overcoats (46) and tenon (11), its balanced configuration is in hoisting crane turning unit (4) both sides, crossbeam (10) end of mechanism's platform (7) forms tenon (11), and the recovery member on the S. A. (5) forms overcoat (46), every group of overcoat (46) linked to each other by the axle (13) with two kinds of diameters with tenon (11), the part that diameter is bigger (47) constitutes the middle body of axle (13), be included in the flat pieces (48) of two width of some parallel surfaces on its whole length, it is configured in the hole (12) that enters tenon (11), and than closely spaced second diameter length of flat pieces (48) be the axle (13) two terminal parts (49), be contained in outer casing support spare (50,51) in, the piston ring (52) that equals middle body (4) diameter with diameter at least inserts together.
8, according to the turning crane described in the claim 7, it is characterized in that, it is two that tenon (11) hole (12) of mechanism's platform (7) becomes, rectangular shaped, each mortise is equipped with two guide groove slide blocks (53) that middle body is thicker, they vertically are configured in above-mentioned hole (12) the inside and both sides, so that dispose the gap of flat pieces (48) spacing (d) that its constant width equals adapter shaft (13) therein.
9, according to described turning crane one of in the claim 1 to 8, it is characterized in that, balance block (8) is made of two hawsers (31) along the device that the mechanism's platform (7) that turns forward moves, this two hawsers (31) balanced configuration is in the both sides of mechanism's platform (7), be fixed on the balance block (8) that is positioned at the most close tower seat (1) by member (32), be fixed on spiral arm (9) the afterbody upper frame (34) by member (33), they are the pulley (36) on the pulley (35) by being configured in mechanism's platform (7) rear portion and the intermediate altitude that is configured in rear connecting rod (14) continuously.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8900847A FR2641773B1 (en) | 1989-01-18 | 1989-01-18 | LIFT BOOM CRANE WITH BOOM RETURN DEVICE |
| FR8900847 | 1989-01-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1044267A true CN1044267A (en) | 1990-08-01 |
| CN1018366B CN1018366B (en) | 1992-09-23 |
Family
ID=9378047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90100783A Expired CN1018366B (en) | 1989-01-18 | 1990-01-18 | Jib cranes with slewer |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0379448B1 (en) |
| JP (1) | JPH02265898A (en) |
| CN (1) | CN1018366B (en) |
| AT (1) | ATE80358T1 (en) |
| DE (1) | DE69000289T2 (en) |
| FR (1) | FR2641773B1 (en) |
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| FR3071489A1 (en) | 2017-09-28 | 2019-03-29 | Manitowoc Crane Group France | METHOD FOR SECURING A CRANE ARROW CRANE AND ASSOCIATED CRANE |
| DE102020107417A1 (en) * | 2020-03-18 | 2021-09-23 | Liebherr-Werk Biberach Gmbh | Tower crane with adjustable counter ballast |
| RU2751926C1 (en) * | 2021-01-25 | 2021-07-20 | Александр Михайлович Рудник | Crane mobile counterweight |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE289839C (en) * | ||||
| DE1850560U (en) * | 1960-03-01 | 1962-04-26 | Tornborg & Lundberg Aktiebolag | BUILDING CRANE. |
| FR2041657A5 (en) * | 1969-05-29 | 1971-01-29 | Richier Sa | |
| US4003474A (en) * | 1975-05-05 | 1977-01-18 | Ralph Mooney | Crane boom stop arrangement |
| SE406903B (en) * | 1977-08-10 | 1979-03-05 | Linden Alimak Ab | DEVICE FOR BALANCING A MOVING LAYER ARM AT A CRANE CONSTRUCTION |
| DE3438937C2 (en) * | 1984-10-24 | 1996-12-19 | Liebherr Werk Biberach Gmbh | Tower crane with adjustable counterweight |
| US4729486A (en) * | 1986-04-07 | 1988-03-08 | The Manitowoc Company, Inc. | Lift enhancing beam attachment with movable counterweights |
-
1989
- 1989-01-18 FR FR8900847A patent/FR2641773B1/en not_active Expired - Lifetime
-
1990
- 1990-01-08 JP JP2000743A patent/JPH02265898A/en active Pending
- 1990-01-11 EP EP90420018A patent/EP0379448B1/en not_active Expired - Lifetime
- 1990-01-11 AT AT90420018T patent/ATE80358T1/en not_active IP Right Cessation
- 1990-01-11 DE DE9090420018T patent/DE69000289T2/en not_active Expired - Fee Related
- 1990-01-18 CN CN90100783A patent/CN1018366B/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10336589B2 (en) | 2006-10-27 | 2019-07-02 | Manitowoc Crane Companies, Llc | Mobile lift crane with variable position counterweight |
| US11884522B2 (en) | 2006-10-27 | 2024-01-30 | Grove U.S. L.L.C. | Mobile lift crane with variable position counterweight |
| CN106081954A (en) * | 2009-08-06 | 2016-11-09 | 马尼托瓦克起重机有限责任公司 | There is the lift crane of moveable counter weight |
| US11261064B2 (en) | 2009-08-06 | 2022-03-01 | Manitowoc Cranes, Llc | Lift crane with moveable counterweight |
| CN102431908A (en) * | 2011-09-07 | 2012-05-02 | 青岛海西重机有限责任公司 | Fixed post type fully rotary crane |
| CN102431908B (en) * | 2011-09-07 | 2013-08-14 | 青岛海西重机有限责任公司 | Fixed post type fully rotary crane |
| US10179722B2 (en) | 2014-01-27 | 2019-01-15 | Manitowoc Crane Companies, Llc | Lift crane with improved movable counterweight |
| US10183848B2 (en) | 2014-01-27 | 2019-01-22 | Manitowoc Crane Companies, Llc | Height adjustment mechanism for an auxiliary member on a crane |
| US11208303B2 (en) | 2014-01-27 | 2021-12-28 | Manitowoc Crane Companies, Llc | Lift crane with improved movable counterweight |
| CN104828715B (en) * | 2015-05-21 | 2016-06-29 | 青岛海西重机有限责任公司 | The mounting platform of gantry crane rotating mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE80358T1 (en) | 1992-09-15 |
| EP0379448A1 (en) | 1990-07-25 |
| FR2641773B1 (en) | 1991-03-15 |
| DE69000289D1 (en) | 1992-10-15 |
| CN1018366B (en) | 1992-09-23 |
| EP0379448B1 (en) | 1992-09-09 |
| DE69000289T2 (en) | 1993-03-18 |
| JPH02265898A (en) | 1990-10-30 |
| FR2641773A1 (en) | 1990-07-20 |
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