CN102659038A - Crane and super-lifting device thereof - Google Patents
Crane and super-lifting device thereof Download PDFInfo
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- CN102659038A CN102659038A CN2012101545641A CN201210154564A CN102659038A CN 102659038 A CN102659038 A CN 102659038A CN 2012101545641 A CN2012101545641 A CN 2012101545641A CN 201210154564 A CN201210154564 A CN 201210154564A CN 102659038 A CN102659038 A CN 102659038A
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- side brace
- outer side
- lifting device
- super lifting
- oil cylinder
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 24
- 230000033001 locomotion Effects 0.000 claims description 14
- 230000000694 effects Effects 0.000 description 7
- 230000008602 contraction Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Classifications
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention provides a crane and a super-lifting device thereof. The super-lift device comprises: a first lateral brace, a second lateral brace, a first medial brace, and a second medial brace; the super lifting device also comprises a first tensioning device and a second tensioning device; the first ends of the first outer side supporting rod, the second outer side supporting rod, the first inner side supporting rod and the second inner side supporting rod are all arranged in a pivoting mode relative to the main arm of the crane; the second ends of the first outer side stay bar, the second outer side stay bar, the first inner side stay bar and the second inner side stay bar are respectively connected with the end part of the main arm of the crane through a first tensioning device; and the second ends of the first outer side stay bar, the second outer side stay bar, the first inner side stay bar and the second inner side stay bar are respectively connected with a rotary table of the crane through a second tensioning device. The invention can adjust the opening angles of the four support rods according to different working conditions, thereby adjusting and giving consideration to the constraint action in the amplitude variation plane and the rotation plane, and improving the integral rigidity and the integral stability of the main arm.
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 first strut 110 ' and second strut 120 '; First end of first strut 110 ' and second strut 120 ' is installed on the basic arm 310 of hoisting crane through pedestal; Preferably, first strut 110 ' and second strut, 120 ' the left and right symmetrically setting that is in the shape of the letter V.Second end of first strut 110 ' and second strut 120 ' is connected with the end of the principal arm of hoisting crane through first take-up device 410; Simultaneously, second end of first strut 110 ' and second strut 120 ' is connected with the turntable of hoisting crane through second take-up device 420.
Though 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 simultaneously the maximum constrained effect of principal arm on plane of rotation and luffing plane.For example, very strong to the effect of contraction of principal arm in the luffing plane when the subtended angle of super lifting device is very little, and to the effect of contraction in the plane of rotation very a little less than.Along with the increase of super lifting device subtended angle, to the effect of contraction enhancing of principal arm in the plane of rotation, and the constraint on luffing plane weakens.
Likewise; When hoisting crane is under long principal arm and the long auxiliary operating mode; The stability of principal arm in plane of rotation and luffing plane is destroyed and is major consideration in the design; And present super lifting device of the prior art can't make the anti-unstability maximized of the structure in plane of rotation and luffing plane of principal arm simultaneously, and the anti-unstability ability of the structure of principal arm in plane of rotation and luffing plane is in the state of " this disappears, and that is long " along with the variation of strut bubble flare.Therefore operating altitude, the amplitude of hoisting crane and the raising of hanging 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 the luffing plane simultaneously to solve super lifting device of the prior art.
For solving the problems of the technologies described above, according to an aspect of the present invention, a kind of super lifting device of hoisting crane is provided, comprising: side brace in the side brace and second in the first outer side brace, the second outer side brace, first; Super lifting device also comprises first take-up device and second take-up device; First end of the side brace and the second interior side brace all is provided with respect to the principal arm of hoisting crane pivotly in the first outer side brace, the second outer side brace, first; Second end of the side brace and the second interior side brace is connected through the end of first take-up device with the principal arm of hoisting crane respectively in the first outer side brace, the second outer side brace, first; Second end of the side brace and the second interior side brace is connected with the turntable of hoisting crane through second take-up device respectively in the first outer side brace, the second outer side brace, first.
Further, super lifting device also comprises first oil cylinder, second oil cylinder that is used to drive the second outer side brace motion that is used to drive the first outer side brace motion, the 3rd oil cylinder that is used to drive side brace motion in the first interior side brace and second.
Further, super lifting device also comprises the support that is installed on the principal arm, and first end of the side brace and the second interior side brace all is connected with support pivotly in the first outer side brace, the second outer side brace, first.
Further, the two ends of first oil cylinder are connected with the first outer side brace and the first interior side brace respectively pivotly; The two ends of second oil cylinder are connected with the second outer side brace and the second interior side brace respectively.
Further; The number of the 3rd oil cylinder is one; One end of one the 3rd oil cylinder is captiveed joint with support, and its other end is connected with first end of two connecting rods pivotly, and second end of two connecting rods is connected with the first interior side brace and the second interior side brace respectively pivotly.
Further, the number of the 3rd oil cylinder is two, and an end of two the 3rd oil cylinders is connected with support respectively pivotly, and the other end of two the 3rd oil cylinders is connected with the first interior side brace and the second interior side brace respectively pivotly.
Further, super lifting device also comprises the pedestal that is fixedly mounted on the principal arm, and support is connected with pedestal pivotly.
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 relative pedestal under the driving of the 4th oil cylinder rotates.
Further, be respectively arranged with tightening device on the side brace in the side brace and second in the first outer side brace, the second outer side brace, first.
Further, the tightening device on the side brace and the second interior side brace is provided with alternately in the tightening device on the first outer side brace and the second outer side brace and first.
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 in first on the 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, a kind of hoisting crane is provided, has comprised super lifting device, this super lifting device is above-mentioned super lifting device.
Because first end of the side brace and the second interior side brace all is connected with pedestal pivotly in the first outer side brace among the present invention, the second outer side brace, first; Therefore; Can be according to different working conditions; Adjust the subtended angle of these four struts, thereby make super lifting device among the present invention obtain adjustment and take into account, improved the integral rigidity and the resistance to overturning of principal arm the effect of contraction of principal arm in the plane of rotation on luffing plane of hoisting crane.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.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 scheme drawing of the hoisting crane that the super lifting device among the present invention has been installed;
Fig. 3 has schematically shown the A portion enlarged drawing among Fig. 2;
The super lifting device that Fig. 4 has schematically shown the hoisting crane among the present invention is operated in " V " shape and opens the scheme drawing under the mode;
The super lifting device that Fig. 5 has schematically shown the hoisting crane among the present invention is operated in down the scheme drawing under " individual " word mode; And
The super lifting device that Fig. 6 has schematically shown the hoisting crane among the present invention is operated in two " V " shapes and opens the scheme drawing under the mode.
Reference numeral among the figure: 110 ', first strut; 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, second oil cylinder; 170, the 3rd oil cylinder; 180, support; 190, the 4th oil cylinder; 200, pedestal; 210, first oil cylinder; 300, principal arm; 310, basic arm; 400, turntable; 410, first take-up device; 420, 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, a kind of super lifting device is provided.As shown in Figures 2 and 3, a kind of super lifting device of hoisting crane comprises: side brace 140 in first outer side brace 110, second outer side brace 120, the first interior side brace 130 and second.First end of side brace 140 all is provided with respect to the principal arm 300 of hoisting crane pivotly in first outer side brace 110, second outer side brace 120, the first interior side brace 130 and second.
Super lifting device also comprises first take-up device and second take-up device.Second end of side brace 140 is connected through the end of first take-up device 410 with the principal arm 300 of hoisting crane respectively in first outer side brace 110, second outer side brace 120, the first interior side brace 130 and second.Second end of side brace 140 is connected with the turntable 400 of hoisting crane through second take-up device 420 respectively in first outer side brace 110, second outer side brace 120, the first interior side brace 130 and second.Preferably, pedestal 200 is arranged on the basic arm 310 of principal arm 300.
Preferably, side brace 140 is arranged in the luffing plane of principal arm 300 symmetrically in first outer side brace 110, second outer side brace 120, the first interior side brace 130 and second.Wherein, side brace 140 constitutes a part that has surpassed mast in pedestal 200, first outer side brace 110, second outer side brace 120, the first interior side brace 130 and second.Especially, the super lifting device among the present invention can be used for superelevation and hangs and carry and ultra far hanging in the hoisting crane that carries.
Because first end of side brace 140 all is connected with pedestal 200 pivotly in first outer side brace 110, second outer side brace 120, the first interior side brace 130 and second among the present invention; Therefore; Can be according to different working conditions; Adjust the subtended angle of these four struts, thereby make super lifting device among the present invention obtain adjustment and take into account, improved the integral rigidity and the resistance to overturning of principal arm the effect of contraction of principal arm in the plane of rotation on luffing plane of hoisting crane.
Preferably, super lifting device also comprise first oil cylinder 210 that is used to drive first outer side brace 110 motions, be used to drive second outer side brace 120 motions second oil cylinder 160, be used to drive the 3rd oil cylinder 170 that side brace 140 is moved in the side brace 130 and second in first.Through above-mentioned each oil cylinder, can drive corresponding each strut motion respectively, thereby regulate its opening angle.
Preferably, super lifting device comprises that also first end of side brace 140 in support 180, the first outer side brace 110, second outer side brace 120, the first interior side brace 130 and second that are installed on the principal arm 300 all is connected with support 180 pivotly.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 through support 180, pedestal 200.Preferably, support 180 and pedestal 200 are connected through bearing pin.
Preferably, super lifting device also comprises the pedestal 200 that is fixedly mounted on the principal arm 300, and support 180 is connected with pedestal 200 pivotly.Further, super lifting device comprises that also 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 relative pedestal 200 under the driving of the 4th oil cylinder 190 rotates.Through control, just can realize to have surpassed mast and having made progress jack-up to mode of operation, so that the transportation of equipment etc. from the position that is parallel to principal arm to having surpassed the retractable operation of mast to the 4th oil cylinder 190.
Preferably, the two ends of first oil cylinder 210 are connected with the first outer side brace 110 and the first interior side brace 130 respectively pivotly; The two ends of second oil cylinder 160 are connected with the second outer side brace 120 and the second interior side brace 140 respectively.
In a not shown embodiment; The number of the 3rd oil cylinder 170 is one; One end of one the 3rd oil cylinder 170 is captiveed joint with support 180; Its other end is connected with first end of two connecting rods pivotly, and second end of two connecting rods is connected with the first interior side brace 130 and the second interior side brace 140 respectively pivotly.Like this,, just can drive two connecting rods simultaneously, and synchronously move, have characteristics simple in structure, that cost is low through side brace 140 in the side brace 130 and second in these two connecting rods drivings first through one the 3rd oil cylinder 170.
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 with support 180 respectively pivotly, and the other end of two the 3rd oil cylinders 170 is connected with the first interior side brace 130 and the second interior side brace 140 respectively pivotly.
In above-mentioned two embodiment, if first, second oil cylinder does not move, only drive the motion of the 3rd oil cylinder, can make the synchronously motion thereupon of first, second outer side brace in driving first, second in side brace so.Need to prove that the first, second, third, the 3rd oil cylinder also can simultaneously or be driven individually.
As shown in Figure 3, be respectively arranged with tightening device 150 on the side brace 140 in first outer side brace 110, second outer side brace 120, the first interior side brace 130 and second.Preferably, tightening device 150 is ratchet elevators.One end of 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 first take-up device through tightening device 150.
Preferably, the tightening device 150 on the side brace 130 and the second interior side brace 140 is provided with alternately in the tightening device 150 on the first outer side brace 110 and the second outer side brace 120 and first.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 in first on the 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 adjacent strut is interfered when motion also helps making the structure of whole super lifting device compact more simultaneously.
Super lifting device among the present invention can make the super lifting device among the present invention under different modes, work through the adjustment to side brace 140 in first outer side brace 110, second outer side brace 120, the first interior side brace 130 and second.For example, as shown in Figure 4, only drive the motion of the 3rd oil cylinder; 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 among the present invention is worked under traditional " V " shape mode of operation.As shown in Figure 5; Only drive first, second oil cylinder motion; The invariant position of side brace in first, second so, and first, second outer side brace is outwards opened, thus the lifting device among the present invention is operated in and the different mode of operation of " individual " font of the prior art.As shown in Figure 6, when first, second, third oil cylinder moved simultaneously, the super lifting device among the present invention can be operated in two " V " font mode of operation.Thus it is clear that,, the super lifting device among the present invention is switched between several kinds of different mode of operation through the control of first, second, third oil cylinder.
Compare with " V " of the prior art shape mode of operation, the dual mode shown in Fig. 5 and Fig. 6 is stronger at the effect of contraction of luffing plane and plane of rotation to the principal arm of hoisting crane, can increase substantially the 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 above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the super lifting device of a hoisting crane is characterized in that, comprising: side brace (140) in the side brace (130) and second in the first outer side brace (110), the second outer side brace (120), first; Said super lifting device also comprises first take-up device (410) and second take-up device (420);
First end of the side brace (130) and the second interior side brace (140) all is provided with respect to the principal arm (300) of said hoisting crane pivotly in the said first outer side brace (110), the second outer side brace (120), first;
Second end of the side brace (130) and the second interior side brace (140) is connected through the end of said first take-up device (410) with the principal arm (300) of said hoisting crane respectively in the said first outer side brace (110), the second outer side brace (120), first;
Second end of the side brace (130) and the second interior side brace (140) is connected with the turntable (400) of said hoisting crane through said second take-up device (420) respectively in the said first outer side brace (110), the second outer side brace (120), first.
2. super lifting device according to claim 1; It is characterized in that said super lifting device also comprises first oil cylinder (210), second oil cylinder (160) that is used to drive the motion of the said second outer side brace (120) that is used to drive the motion of the said first outer side brace (110), the 3rd oil cylinder (170) that is used to drive side brace (140) motion in the said first interior side brace (130) and said second.
3. super lifting device according to claim 2; It is characterized in that; Said super lifting device also comprises the support (180) that is installed on the said principal arm (300), and first end of the side brace (130) and the second interior side brace (140) all is connected with said support (180) pivotly in the said first outer side brace (110), the second outer side brace (120), first.
4. super lifting device according to claim 3 is characterized in that, the two ends of said first oil cylinder (210) are connected with the said first outer side brace (110) and the said first interior side brace (130) respectively pivotly; The two ends of said second oil cylinder (160) are connected with the said second outer side brace (120) and the said second interior side brace (140) respectively.
5. super lifting device according to claim 3; It is characterized in that; The number of said the 3rd oil cylinder (170) is one; One end of said one the 3rd oil cylinder (170) is captiveed joint with said support (180), and its other end is connected with first end of two connecting rods pivotly, and second end of said two connecting rods is connected with the said first interior side brace (130) and the said second interior side brace (140) respectively pivotly.
6. super lifting device according to claim 3; It is characterized in that; The number of said the 3rd oil cylinder (170) is two; One end of said two the 3rd oil cylinders (170) is connected with said support (180) respectively pivotly, and the other end of said two the 3rd oil cylinders (170) is connected with the said first interior side brace (130) and the said second interior side brace (140) respectively pivotly.
7. according to each described super lifting device among the claim 3-6, it is characterized in that said super lifting device also comprises the pedestal (200) that is fixedly mounted on the said principal arm (300), said support (180) is connected with said pedestal (200) pivotly.
8. super lifting device according to claim 7; It is characterized in that; Said super lifting device also comprises the 4th oil cylinder (190); One end of said the 4th oil cylinder (190) is connected with said support (180), and its other end is connected with said pedestal (200) or said principal arm (300), and said support (180) said relatively pedestal (200) under the driving of said the 4th oil cylinder (190) rotates.
9. according to each described super lifting device among the claim 1-6, it is characterized in that, be respectively arranged with tightening device (150) on the side brace (140) in the side brace (130) and second in the said first outer side brace (110), the second outer side brace (120), first.
10. super lifting device according to claim 9; It is characterized in that the tightening device (150) in the tightening device (150) on the said first outer side brace (110) and the second outer side brace (120) and said first on the side brace (130) and the second interior side brace (140) is provided with alternately.
11. super lifting device according to claim 9 is characterized in that, the tightening device (150) on the said first outer side brace (110) and the second outer side brace (120) is arranged on the end of the said first outer side brace (110) and the second outer side brace (120); Tightening device (150) in said first on the side brace (130) and the second interior side brace (140) is arranged on the middle part of the said first interior side brace (130) and the second outer side brace (120).
12. super lifting device according to claim 9 is characterized in that, said tightening device (150) is the ratchet elevator.
13. a hoisting crane comprises super lifting device, it is characterized in that, said super lifting device is each described super lifting device among the claim 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101545641A CN102659038B (en) | 2012-05-17 | 2012-05-17 | Crane and super-lifting device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101545641A CN102659038B (en) | 2012-05-17 | 2012-05-17 | Crane and super-lifting device thereof |
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| Publication Number | Publication Date |
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| CN102659038A true CN102659038A (en) | 2012-09-12 |
| CN102659038B CN102659038B (en) | 2013-12-04 |
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| CN2012101545641A Active CN102659038B (en) | 2012-05-17 | 2012-05-17 | Crane and super-lifting device thereof |
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| WO2013170567A1 (en) * | 2012-05-17 | 2013-11-21 | 中联重科股份有限公司 | Crane super-lift apparatus and telescopic crane |
| CN103613012A (en) * | 2013-12-02 | 2014-03-05 | 广西大学 | Amplitude changing device of crane capable of changing angles |
| CN104477793A (en) * | 2014-12-15 | 2015-04-01 | 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 |
| CN110929356A (en) * | 2019-12-30 | 2020-03-27 | 三一汽车起重机械有限公司 | Lifting performance calculation method, lifting controller and crane |
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| WO2013170567A1 (en) * | 2012-05-17 | 2013-11-21 | 中联重科股份有限公司 | Crane super-lift apparatus and telescopic crane |
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| CN110929356A (en) * | 2019-12-30 | 2020-03-27 | 三一汽车起重机械有限公司 | Lifting performance calculation method, lifting controller and 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 |
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| Publication number | Publication date |
|---|---|
| CN102659038B (en) | 2013-12-04 |
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