CN102659038B - Crane and superlift device thereof - Google Patents
Crane and superlift device thereof Download PDFInfo
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- CN102659038B CN102659038B CN2012101545641A CN201210154564A CN102659038B CN 102659038 B CN102659038 B CN 102659038B CN 2012101545641 A CN2012101545641 A CN 2012101545641A CN 201210154564 A CN201210154564 A CN 201210154564A CN 102659038 B CN102659038 B CN 102659038B
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- side brace
- outer side
- interior side
- lifting device
- super lifting
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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
- B66C23/82—Luffing gear
- B66C23/821—Bracing equipment for booms
- B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
- B66C23/828—Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable
Abstract
The invention provides a crane and a superlift device thereof. The superlift device comprises a first outside supporting rod, a second outside supporting rod, a first inside supporting rod, a second inside supporting rod, a first tensioning device and a second tensioning device, wherein the first ends of the first outside supporting rod, the second outside supporting rod, the first inside supporting rod and the second inside supporting rod are pivotally arranged relative to a main arm of the crane; the second ends of the first outside supporting rod, the second outside supporting rod, the first inside supporting rod and the second inside supporting rod are respectively connected with the end of the main arm of the crane through the first tensioning device; and the second ends of the first outside supporting rod, the second outside supporting rod, the first inside supporting rod and the second inside supporting rod are respectively connected with a turntable of the crane through the second tensioning device. Flare angles of the four supporting rods can be adjusted according to different working conditions, so that constraint effects in a luffing plane and a rotating plane are adjusted and considered, and the integral rigidity and stability of the main arm are improved.
Description
Technical field
The present invention relates to the hoisting crane field, more specifically, relate to a kind of hoisting crane and super lifting device thereof.
Background technology
Fig. 1 shows the structural representation of the super lifting device of hoisting crane of the prior art.As shown in Figure 1, super lifting device of the prior art comprises the first strut 110 ' and the second strut 120 ', the first end of the first strut 110 ' and the second strut 120 ' is arranged on the basic arm 310 of hoisting crane by pedestal, preferably, the first strut 110 ' and the second strut 120 ' left and right symmetrically setting that is in the shape of the letter V.The second end of the first strut 110 ' and the second strut 120 ' is connected with the end of the principal arm of hoisting crane by the first take-up device 410, simultaneously, the second end of the first strut 110 ' and the second strut 120 ' is connected with the turntable of hoisting crane by the second take-up device 420.
Although this super lifting device can reduce the amount of deflection of principal arm in luffing plane and plane of rotation, can't fundamentally take into account to principal arm the maximum constrained effect on plane of rotation and luffing plane simultaneously.For example, when the subtended angle of super lifting device is very little, very strong to the effect of contraction of principal arm in the luffing plane, and very weak to the effect of contraction in plane of rotation.Along with the increase of super lifting device subtended angle, to the effect of contraction enhancing of principal arm in plane of rotation, and the constraint on luffing plane weakens.
Similarly, when hoisting crane under long principal arm and long auxiliary operating mode, the stability of principal arm in plane of rotation and luffing plane is destroyed as major consideration in design, and the super lifting device in currently available technology can't make the anti-unstability ability of the structure in plane of rotation and luffing plane of principal arm maximize simultaneously, the anti-unstability ability of the structure of principal arm in plane of rotation and luffing plane is along with the variation of strut bubble flare, in the state of " this disappears, and that is long ".Therefore operating altitude, the amplitude of hoisting crane and the raising of hanging the lifting performances such as load carrying ability have been limited.
Summary of the invention
The present invention aims to provide a kind of hoisting crane and super lifting device thereof, can not take into account the problem of the stability in plane of rotation and luffing plane to solve super lifting device of the prior art simultaneously.
For solving the problems of the technologies described above, according to an aspect of the present invention, provide a kind of super lifting device of hoisting crane, comprising: the first outer side brace, the second outer side brace, the first interior side brace and the second interior side brace; Super lifting device also comprises the first take-up device and the second take-up device; The first end of the first outer side brace, the second outer side brace, the first interior side brace and the second interior side brace all arranges pivotly with respect to the principal arm of hoisting crane; The second end of the first outer side brace, the second outer side brace, the first interior side brace and the second interior side brace is connected with the end of the principal arm of hoisting crane by the first take-up device respectively; The second end of the first outer side brace, the second outer side brace, the first interior side brace and the second interior side brace is connected with the turntable of hoisting crane by the second take-up device respectively.
Further, super lifting device also comprise the first oil cylinder for driving the first outer side brace motion, for the second oil cylinder of driving the second outer side brace motion, for driving the 3rd oil cylinder of the first interior side brace and the second interior side brace motion.
Further, super lifting device also comprises the support be arranged on principal arm, and the first end of the first outer side brace, the second outer side brace, the first interior side brace and the second interior side brace all is connected pivotly with support.
Further, the two ends of the first oil cylinder are connected with the first interior side brace pivotly with the first outer side brace respectively; The two ends of the second oil cylinder are connected with the second interior side brace with the second outer side brace respectively.
Further, the number of the 3rd oil cylinder is one, one end of the 3rd oil cylinder is fixedly connected with support, and its other end is connected pivotly with the first end of two connecting rods, and the second end of two connecting rods is connected with the second interior side brace pivotly with the first interior side brace respectively.
Further, the number of the 3rd oil cylinder is two, and an end of two the 3rd oil cylinders is connected pivotly with support respectively, and the other end of two the 3rd oil cylinders is connected with the second interior side brace pivotly with the first interior side brace respectively.
Further, super lifting device also comprises the pedestal be fixedly mounted on principal arm, and support is connected pivotly with pedestal.
Further, super lifting device also comprises the 4th oil cylinder, and an end of the 4th oil cylinder is connected with support, and its other end is connected with pedestal or principal arm, and support rotates relative to pedestal under the driving of the 4th oil cylinder.
Further, be respectively arranged with tightening device on the first outer side brace, the second outer side brace, the first interior side brace and the second interior side brace.
Further, the tightening device on the first outer side brace and the second outer side brace and the tightening device on the first interior side brace and the second interior side brace arrange alternately.
Further, the tightening device on the first outer side brace and the second outer side brace is arranged on the end of the first outer side brace and the second outer side brace; Tightening device on the first interior side brace and the second interior side brace is arranged on the middle part of the first interior side brace and the second outer side brace.
Further, tightening device is the ratchet elevator.
According to another aspect of the present invention, provide a kind of hoisting crane, comprised super lifting device, this super lifting device is above-mentioned super lifting device.
Because the first end of the first outer side brace in the present invention, the second outer side brace, the first interior side brace and the second interior side brace all is connected pivotly with pedestal, therefore, can be according to different operating modes, adjust the subtended angle of these four struts, thereby make super lifting device in the present invention be adjusted and take into account the effect of contraction of principal arm in the plane of rotation on luffing plane of hoisting crane, improved integral rigidity and the resistance to overturning of principal arm.
The accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.In the accompanying drawings:
Fig. 1 has schematically shown the structural representation of the super lifting device of hoisting crane of the prior art;
Fig. 2 has schematically shown the schematic diagram of the hoisting crane that the super lifting device in the present invention has been installed;
Fig. 3 has schematically shown the A section enlarged drawing in Fig. 2;
The super lifting device that Fig. 4 has schematically shown the hoisting crane in the present invention is operated in " V " shape and opens the schematic diagram under mode;
The super lifting device that Fig. 5 has schematically shown the hoisting crane in the present invention is operated in down the schematic diagram under " individual " word mode; And
The super lifting device that Fig. 6 has schematically shown the hoisting crane in the present invention is operated in Bi-V shape and opens the schematic diagram under mode.
Reference numeral in figure: 110 ', the first strut; The 120 ', second strut; 110, the first outer side brace; 120, the second outer side brace; 130, the first interior side brace; 140, the second interior side brace; 150, tightening device; 160, the second oil cylinder; 170, the 3rd oil cylinder; 180, support; 190, the 4th oil cylinder; 200, pedestal; 210, the first oil cylinder; 300, principal arm; 310, basic arm; 400, turntable; 410, the first take-up device; 420, the second take-up device.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As one aspect of the present invention, provide a kind of super lifting device.As shown in Figures 2 and 3, a kind of super lifting device of hoisting crane comprises: the first outer side brace 110, the second interior side brace 130 of outer side brace 120, first and the second interior side brace 140.The first end of the first outer side brace 110, second interior side brace 130 of outer side brace 120, first and the second interior side brace 140 all arranges pivotly with respect to the principal arm 300 of hoisting crane.
Super lifting device also comprises the first take-up device and the second take-up device.The second end of the interior side brace 130 of the outer side brace 120, first of the first outer side brace 110, second and the second interior side brace 140 is connected with the end of the principal arm 300 of hoisting crane by the first take-up device 410 respectively.The second end of the interior side brace 130 of the outer side brace 120, first of the first outer side brace 110, second and the second interior side brace 140 is connected with the turntable 400 of hoisting crane by the second take-up device 420 respectively.Preferably, pedestal 200 is arranged on the basic arm 310 of principal arm 300.
Preferably, the first outer side brace 110, second interior side brace 130 of outer side brace 120, first and the second interior side brace 140 are arranged in the luffing plane of principal arm 300 symmetrically.Wherein, the outer side brace 110, second of pedestal 200, the first interior side brace 130 of outer side brace 120, first and the second interior side brace 140 form a part that has surpassed mast.Especially, the super lifting device in the present invention can be used for superelevation and hangs and carry and super far hanging in the hoisting crane carried.
Because the first outer side brace 110, second interior side brace 130 of outer side brace 120, first in the present invention and the first end of the second interior side brace 140 all are connected pivotly with pedestal 200, therefore, can be according to different operating modes, adjust the subtended angle of these four struts, thereby make super lifting device in the present invention be adjusted and take into account the effect of contraction of principal arm in the plane of rotation on luffing plane of hoisting crane, improved integral rigidity and the resistance to overturning of principal arm.
Preferably, super lifting device also comprise the first oil cylinder 210 for driving the first outer side brace 110 motions, for the second oil cylinder 160 of driving the second outer side brace 120 motions, for driving the 3rd oil cylinder 170 of the first interior side brace 130 and the second interior side brace 140 motions.By above-mentioned each oil cylinder, can drive respectively corresponding each strut motion, thereby regulate its opening angle.
Preferably, super lifting device also comprises that the first end of the outer side brace 110, second of the support 180, the first be arranged on the principal arm 300 interior side brace 130 of outer side brace 120, first and the second interior side brace 140 all is connected pivotly with support 180.Like this, the lower end of each strut is connected with the principal arm 300 (the particularly basic arm of principal arm 300) of hoisting crane by support 180, pedestal 200.Preferably, support 180 is connected by bearing pin with pedestal 200.
Preferably, super lifting device also comprises the pedestal 200 be fixedly mounted on principal arm 300, and support 180 is connected pivotly with pedestal 200.Further, super lifting device also comprises that an end of the 4th oil cylinder 190, the four oil cylinders 190 is connected with support 180, and its other end is connected with pedestal 200 or principal arm 300, and support 180 rotates relative to pedestal 200 under the driving of the 4th oil cylinder 190.By the control to the 4th oil cylinder 190, just can realize having surpassed the retractable operation of mast, can will surpass mast and make progress jack-up to mode of operation from the position that is parallel to principal arm, so that the transportation of equipment etc.
Preferably, the two ends of the first oil cylinder 210 are connected with the first interior side brace 130 pivotly with the first outer side brace 110 respectively; The two ends of the second oil cylinder 160 are connected with the second interior side brace 140 with the second outer side brace 120 respectively.
In a not shown embodiment, the number of the 3rd oil cylinder 170 is one, one end of the 3rd oil cylinder 170 is fixedly connected with support 180, its other end is connected pivotly with the first end of two connecting rods, and the second end of two connecting rods is connected with the second interior side brace 140 pivotly with the first interior side brace 130 respectively.Like this, by the 3rd oil cylinder 170, just can drive two connecting rods simultaneously, and drive the first interior side brace 130 and the second interior side brace 140 synchronously to move by these two connecting rods, there are characteristics simple in structure, that cost is low.
In the embodiment shown in fig. 3, the number of the 3rd oil cylinder 170 is two, one end of two the 3rd oil cylinders 170 is connected pivotly with support 180 respectively, and the other end of two the 3rd oil cylinders 170 is connected with the second interior side brace 140 pivotly with the first interior side brace 130 respectively.
In above-mentioned two embodiment, if first, second oil cylinder does not move, only drive the 3rd cylinder movement, can, in driving first, second in side brace, make the synchronously motion thereupon of first, second outer side brace so.It should be noted that, the first, second, third, the 3rd oil cylinder also can the while or driven individually.
As shown in Figure 3, be respectively arranged with tightening device 150 on the first outer side brace 110, second interior side brace 130 of outer side brace 120, first and the second interior side brace 140.Preferably, tightening device 150 is ratchet elevators.One end of the first take-up device is connected with the end of principal arm, and the other end is connected with tightening device 150, and can regulate the degree of tension of the first take-up device by tightening device 150.
Preferably, the tightening device 150 on the first outer side brace 110 and the second outer side brace 120 and the tightening device 150 on the first interior side brace 130 and the second interior side brace 140 arrange alternately.Further, the tightening device 150 on the first outer side brace 110 and the second outer side brace 120 is arranged on the end of the first outer side brace 110 and the second outer side brace 120.Tightening device 150 on the first interior side brace 130 and the second interior side brace 140 is arranged on the middle part of the first interior side brace 130 and the second outer side brace 120.Because tightening device 150 is that ground is set alternately, therefore, the problem that can not make because of two tightening devices 150 adjacent strut interfere when motion, also be conducive to make the structure of whole super lifting device compacter simultaneously.
Super lifting device in the present invention can, by the adjustment to the first outer side brace 110, second interior side brace 130 of outer side brace 120, first and the second interior side brace 140, can make the super lifting device in the present invention work under different modes.For example, as shown in Figure 4, only drive the 3rd cylinder movement, so can be in driving first, second in side brace, first, second outer side brace is synchronously opened thereupon, this mode of operation, thus the super lifting device in the present invention is worked under traditional " V " shape mode of operation.As shown in Figure 5, only drive first, second cylinder movement, the invariant position of side brace in first, second so, and first, second outer side brace is outwards opened, thus make the lifting device in the present invention be operated in the mode of operation different from " individual " font of the prior art.As shown in Figure 6, when first, second, third oil cylinder is moved simultaneously, the super lifting device in the present invention can be operated in two " V " font mode of operation.Visible, by the control of first, second, third oil cylinder, can make the super lifting device in the present invention switch between different several mode of operation.
With " V " of the prior art shape mode of operation, compare, two kinds of modes shown in Fig. 5 and Fig. 6 are stronger at the effect of contraction of luffing plane and plane of rotation to the principal arm of hoisting crane, can increase substantially integral rigidity and the resistance to overturning of principal arm.
As another aspect of the present invention, a kind of hoisting crane is provided, comprise super lifting device, this super lifting device is above-mentioned super lifting device.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (13)
1. the super lifting device of a hoisting crane, is characterized in that, comprising: the first outer side brace (110), the second outer side brace (120), the first interior side brace (130) and the second interior side brace (140); Described super lifting device also comprises the first take-up device (410) and the second take-up device (420);
The first end of the described first outer side brace (110), the second outer side brace (120), the first interior side brace (130) and the second interior side brace (140) all arranges pivotly with respect to the principal arm (300) of described hoisting crane;
The second end of the described first outer side brace (110), the second outer side brace (120), the first interior side brace (130) and the second interior side brace (140) is connected with the end of the principal arm (300) of described hoisting crane by described the first take-up device (410) respectively;
The second end of the described first outer side brace (110), the second outer side brace (120), the first interior side brace (130) and the second interior side brace (140) is connected with the turntable (400) of described hoisting crane by described the second take-up device (420) respectively.
2. super lifting device according to claim 1, it is characterized in that, described super lifting device also comprises the first oil cylinder (210) for driving the described first outer side brace (110) motion, the second oil cylinder (160) for driving the described second outer side brace (120) motion, the 3rd oil cylinder (170) for driving the described first interior side brace (130) and the described second interior side brace (140) to move.
3. super lifting device according to claim 2, it is characterized in that, described super lifting device also comprises the support (180) be arranged on described principal arm (300), and the first end of the described first outer side brace (110), the second outer side brace (120), the first interior side brace (130) and the second interior side brace (140) all is connected pivotly with described support (180).
4. super lifting device according to claim 3, is characterized in that, the two ends of described the first oil cylinder (210) are connected with the described first interior side brace (130) pivotly with the described first outer side brace (110) respectively; The two ends of described the second oil cylinder (160) are connected with the described second interior side brace (140) with the described second outer side brace (120) respectively.
5. super lifting device according to claim 3, it is characterized in that, the number of described the 3rd oil cylinder (170) is one, one end of described the 3rd oil cylinder (170) is fixedly connected with described support (180), its other end is connected pivotly with the first end of two connecting rods, and the second end of described two connecting rods is connected with the described second interior side brace (140) pivotly with the described first interior side brace (130) respectively.
6. super lifting device according to claim 3, it is characterized in that, the number of described the 3rd oil cylinder (170) is two, one end of described two the 3rd oil cylinders (170) is connected pivotly with described support (180) respectively, and the other end of described two the 3rd oil cylinders (170) is connected with the described second interior side brace (140) pivotly with the described first interior side brace (130) respectively.
7. according to the described super lifting device of any one in claim 3-6, it is characterized in that, described super lifting device also comprises the pedestal (200) be fixedly mounted on described principal arm (300), and described support (180) is connected pivotly with described pedestal (200).
8. super lifting device according to claim 7, it is characterized in that, described super lifting device also comprises the 4th oil cylinder (190), one end of described the 4th oil cylinder (190) is connected with described support (180), its other end is connected with described pedestal (200) or described principal arm (300), and described support (180) rotates relative to described pedestal (200) under the driving of described the 4th oil cylinder (190).
9. according to the described super lifting device of any one in claim 1-6, it is characterized in that, on the described first outer side brace (110), the second outer side brace (120), the first interior side brace (130) and the second interior side brace (140), be respectively arranged with tightening device (150).
10. super lifting device according to claim 9, it is characterized in that, the tightening device (150) on the described first outer side brace (110) and the second outer side brace (120) arranges alternately with the tightening device (150) on the described first interior side brace (130) and the second interior side brace (140).
11. super lifting device according to claim 9, it is characterized in that, the tightening device (150) on the described first outer side brace (110) and the second outer side brace (120) is arranged on the end of the described first outer side brace (110) and the second outer side brace (120); Tightening device (150) on the described first interior side brace (130) and the second interior side brace (140) is arranged on the middle part of the described first interior side brace (130) and the second outer side brace (120).
12. super lifting device according to claim 9, is characterized in that, described tightening device (150) is the ratchet elevator.
13. a hoisting crane, comprise super lifting device, it is characterized in that, described super lifting device is the described super lifting device of any one in claim 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101545641A CN102659038B (en) | 2012-05-17 | 2012-05-17 | Crane and superlift device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101545641A CN102659038B (en) | 2012-05-17 | 2012-05-17 | Crane and superlift device thereof |
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| Publication Number | Publication Date |
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| CN102659038A CN102659038A (en) | 2012-09-12 |
| CN102659038B true CN102659038B (en) | 2013-12-04 |
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| CN2012101545641A Active CN102659038B (en) | 2012-05-17 | 2012-05-17 | Crane and superlift device thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659037B (en) * | 2012-05-17 | 2014-01-01 | 中联重科股份有限公司 | Superlift device for crane and telescopic boom crane |
| CN103613012A (en) * | 2013-12-02 | 2014-03-05 | 广西大学 | Amplitude changing device of crane capable of changing angles |
| CN104477793B (en) * | 2014-12-15 | 2016-08-24 | 中联重科股份有限公司 | Crane super lifting device and crane |
| KR101831409B1 (en) | 2016-08-19 | 2018-02-22 | 주식회사 에버다임 | Tower crane |
| CN110929356B (en) * | 2019-12-30 | 2023-04-07 | 三一汽车起重机械有限公司 | Lifting performance calculation method, lifting controller and crane |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19802187C2 (en) * | 1998-01-16 | 1999-11-25 | Mannesmann Ag | Device for bracing a superlift device of a telescopic crane |
| DE20002179U1 (en) * | 2000-02-08 | 2000-08-03 | Liebherr Werk Ehingen | Mobile crane |
| DE10129022B4 (en) * | 2001-06-13 | 2005-07-28 | Terex-Demag Gmbh & Co. Kg | Telescopic crane with superlift device |
| CN201301180Y (en) * | 2008-10-29 | 2009-09-02 | 徐州重型机械有限公司 | Super-lifting gear for telescopic booms and telescopic boom crane |
| CN101659378A (en) * | 2009-08-27 | 2010-03-03 | 三一汽车制造有限公司 | Lift and superlift device thereof |
| JP5649870B2 (en) * | 2010-08-20 | 2015-01-07 | 株式会社タダノ | Mobile crane |
| CN102431913B (en) * | 2011-12-08 | 2013-06-05 | 中联重科股份有限公司 | Crane and super hoisting device thereof |
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2012
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