CN102659032B - Crane and superlift device thereof - Google Patents

Crane and superlift device thereof Download PDF

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Publication number
CN102659032B
CN102659032B CN 201210154900 CN201210154900A CN102659032B CN 102659032 B CN102659032 B CN 102659032B CN 201210154900 CN201210154900 CN 201210154900 CN 201210154900 A CN201210154900 A CN 201210154900A CN 102659032 B CN102659032 B CN 102659032B
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CN
China
Prior art keywords
strut
support
hoisting crane
auxiliary
super lifting
Prior art date
Application number
CN 201210154900
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Chinese (zh)
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CN102659032A (en
Inventor
詹纯新
刘权
宁玮
李孟寒
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中联重科股份有限公司
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Priority to CN 201210154900 priority Critical patent/CN102659032B/en
Publication of CN102659032A publication Critical patent/CN102659032A/en
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Publication of CN102659032B publication Critical patent/CN102659032B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/62Constructional features or details
    • B66C23/82Luffing gear
    • B66C23/821Bracing equipment for booms
    • B66C23/826Bracing equipment acting at an inclined angle to vertical and horizontal directions

Abstract

The invention provides a crane and a superlift device thereof. The superlift device comprises a first stay bar, a second stay bar, a third stay bar, a fourth stay bar and an auxiliary supporting unit, wherein the auxiliary supporting unit is arranged at the end part of a main arm of the crane; the first ends of the first stay bar, the second stay bar, the third stay bar and the fourth stay bar can be pivotally arranged on the main arm of the crane; the second ends of the first stay bar, the second stay bar, the third stay bar and the fourth stay bar are respectively connected with the auxiliary supporting unit through a first tensioning device; and the second ends of the first stay bar, the second stay bar, the third stay bar and the fourth stay bar are respectively connected with a turntable of the crane through a second tensioning device. According to the superlift device provided by the invention, as the four superlift stay bars and the auxiliary supporting unit matched with the superlift stay bars are used, not only can a suspended load mode in the prior art be realized but also suspended load when the main arm is at a big angle of elevation can be realized.

Description

Hoisting crane and super lifting device thereof

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 that the first end of the first strut 110 and the second strut 120, the first struts 110 and the second strut 120 is arranged on the basic arm 310 of hoisting crane by pedestal.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 160, and 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 170.

As can be seen from Figure 1, the first strut 110 of super lifting device of the prior art and the second strut 120 arrange with respect to the luffing plane left and right symmetrically of hoisting crane.Although super lifting device of the prior art has reduced the amount of deflection of crane 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.

Particularly at big-elevation, hang and carry under operating mode, principal arm of the prior art and super lifting device thereof are because resistance to overturning is poor, therefore the situation that can't reach at the elevation angle of principal arm 90 degree is carried out vertical operation, has limited operating altitude, the amplitude of hoisting crane and has hung the raising of the ability of the lifting performances such as load carrying ability.

Summary of the invention

The present invention aims to provide a kind of hoisting crane and super lifting device thereof, with the solution prior art, can't adapt at big-elevation and hang the problem of working under operating mode of carrying.

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 strut, the second strut, the 3rd strut, the 4th strut and supplemental support unit; The supplemental support cellular installation is in the end of the principal arm of hoisting crane; The first end of the first strut, the second strut, the 3rd strut and the 4th strut is pivotably mounted on the principal arm of hoisting crane; The second end of the first strut, the second strut, the 3rd strut and the 4th strut is connected with the supplemental support unit by the first take-up device respectively; The second end of the first strut, the second strut, the 3rd strut and the 4th strut is connected with the turntable of hoisting crane by the second take-up device respectively.

Further, the supplemental support unit comprises the first support portion arranged in a crossed manner, the second support portion, the 3rd support portion and the 4th support portion.

Further, super lifting device also comprises tightening device, and the number of tightening device is four, and four tightening devices are separately positioned on the first strut, the second strut, the 3rd strut and the 4th strut and respectively and are connected with corresponding the first take-up device.

Further, the tightening device on the first strut is arranged on the end of the first strut; Tightening device on the second strut is arranged on the end of the second strut; Tightening device on the 3rd strut is arranged on the middle part of the 3rd strut; Tightening device on the 4th strut is arranged on the middle part of the 4th strut.

Further, super lifting device also comprises pedestal, and the first end of the first strut, the second strut, the 3rd strut and the 4th strut is pivotably mounted on the principal arm of hoisting crane by pedestal.

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; Hoisting crane also comprises the first auxiliary; The first auxiliary is arranged on the end of the principal arm of hoisting crane.

Further, principal arm comprises the prolongation fixed arm, and an end that extends fixed arm is connected with the end of the telescopic boom of the principal arm of hoisting crane, and the other end that extends fixed arm is connected with the first auxiliary.

Further, hoisting crane also comprises the second auxiliary, the first end of the first auxiliary is connected with the first end of the second auxiliary, the second end of the first auxiliary is connected and first cam mechanism that is shaped with the second end of the second auxiliary by the first attaching parts, and the first cam mechanism is connected with afterbody or the turntable of hoisting crane by the 3rd take-up device.

Further, hoisting crane also comprises the 3rd auxiliary, the first end of the second auxiliary is connected directly or indirectly with the first end of the 3rd auxiliary, the second end of the second auxiliary is connected and second cam mechanism that is shaped with the second end of the 3rd auxiliary by the second attaching parts, and the first cam mechanism is connected with the 3rd take-up device by the second cam mechanism.

Further, the supplemental support unit of super lifting device comprises the first support portion arranged in a crossed manner, the second support portion, the 3rd support portion and the 4th support portion, and the first strut of super lifting device, the second strut, the 3rd strut, the 4th strut are adjustable to respectively the position corresponding with the first support portion, the second support portion, the 3rd support portion and the 4th support portion of the supplemental support unit of super lifting device.

Further, the supplemental support unit of super lifting device comprises the first support portion arranged in a crossed manner, the second support portion, the 3rd support portion and the 4th support portion, and the first strut of super lifting device, the second strut, the 3rd strut, the 4th strut are adjustable to respectively the position interlaced with the first support portion, the second support portion, the 3rd support portion and the 4th support portion of the supplemental support unit of super lifting device.

Further, each strut in the first strut, the second strut, the 3rd strut and the 4th strut is connected by two in the first support portion, the second support portion, the 3rd support portion and the 4th support portion of two the first take-up devices and supplemental support unit corresponding support portions respectively.

Further, tightening device comprises two parts can synchronously rotating, one end of two the first take-up devices on each strut in the first strut, the second strut, the 3rd strut and the 4th strut is wrapped in respectively on two parts of tightening device, and the other end support portion corresponding with two respectively is fixedly connected with.

Super lifting device in the present invention due to used four surpassed strut and with the supplemental support unit that has surpassed strut and match, therefore except realizing of the prior art hanging the mode of carrying, hanging in the time of can also realizing the big-elevation of principal arm carried.

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 structural representation of the hoisting crane in an embodiment in the present invention;

Fig. 3 has schematically shown the block diagram of Fig. 2;

Fig. 4 has schematically shown the structural representation of the hoisting crane in another embodiment in the present invention;

Fig. 5 is schematically illustrated in the schematic diagram of the first operating mode while not using the supplemental support unit;

Fig. 6 is schematically illustrated in the schematic diagram of the second operating mode while not using the supplemental support unit; And

Fig. 7 is schematically illustrated in the schematic diagram of the third operating mode while not using the supplemental support unit.

Reference numeral in figure: 110, the first strut; 120, the second strut; 130, the 3rd strut; 140, the 4th strut; 150, tightening device; 160, the first take-up device; 170, the second take-up device; 180, pedestal; 190, supplemental support unit; 191, the first support portion; 192, the second support portion; 193, the 3rd support portion; 194, the 4th support portion; 210, the first auxiliary; 220, the second auxiliary; 230, the 3rd auxiliary; 240, the first attaching parts; 250, the second attaching parts; 270, the 3rd take-up device; 300, principal arm; 310, basic arm; 400, get off; 500, turntable; 600, extend fixed arm.

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 a first aspect of the present invention, provide a kind of super lifting device of hoisting crane.In Figure 2-4, this super lifting device comprises: the first strut 110, the second strut 120, the 3rd strut 130, the 4th strut 140 and supplemental support unit 190.Supplemental support unit 190 is arranged on the end of the principal arm 300 of hoisting crane.The first end of the first strut 110, the second strut 120, the 3rd strut 130 and the 4th strut 140 is pivotably mounted on the principal arm 300 of hoisting crane.The second end of the first strut 110, the second strut 120, the 3rd strut 130 and the 4th strut 140 is not connected with supplemental support unit 190 by the first take-up device 160; The second end of the first strut 110, the second strut 120, the 3rd strut 130 and the 4th strut 140 is connected with afterbody or the turntable 500 of hoisting crane by the second take-up device 170 respectively.Wherein, turntable 500 is arranged on pivotly and gets off on 400.

Preferably, super lifting device also comprises that the first end of pedestal 180, the first struts 110, the second strut 120, the 3rd strut 130 and the 4th strut 140 is pivotably mounted on the principal arm 300 of hoisting crane by pedestal 180.Pedestal 180 be arranged on the principal arm 300 of hoisting crane (preferably, be arranged on principal arm 300 basic arm 310 on).

Preferably, the first strut 110 and the second strut 120 can rotate in the scope of 0-180 degree, and the 3rd strut 130 and the 4th strut 140 can rotate in the scope of 0-90 degree.Therefore, the first strut 110, the second strut 120, the 3rd strut 130 and the 4th strut 140 can rotate and form the structure of intersecting, for example cruciform construction.

Preferably, the first take-up device 160 can be the single row type steel rope, also can be the double-row type steel rope.The double-row type steel rope can be connected with supplemental support unit 190 by the pulley that is arranged on the first take-up device 160 ends.

In addition, the super lifting device in the present invention comprises the first strut 110, the second strut 120, the 3rd strut 130, the 4th strut 140, therefore, can carry under operating mode and can realize the different modes of opening in different hanging.

As shown in Figure 3 and Figure 4, supplemental support unit 190 comprises the first support portion 191, the second support portion 192, the 3rd support portion 193 and the 4th support portion 194 arranged in a crossed manner.For example, the first support portion 191, the second support portion 192, the 3rd support portion 193 and the 4th support portion 194 can across arranged in a crossed manner, to have increased the first take-up device, act on the moment on principal arm, improved the stability of boom system.

Preferably, please refer to Fig. 2-4, super lifting device also comprises tightening device 150, the number of tightening device 150 is four, and four tightening devices 150 are separately positioned on the first strut 110, the second strut 120, the 3rd strut 130 and are connected with corresponding the first take-up device 160 on the 4th strut 140 and respectively.Especially, the tightening device 150 on two adjacent struts arranges alternately, with certain space of staggering, makes adjacent two struts (for example the first strut 110 and the 3rd strut 130) can be tightened to the position of mutually being close to.Preferably, tightening device 150 is ratchet elevators.

For example, the tightening device 150 on the first strut 110 is arranged on the end of the first strut 110; Tightening device 150 on the second strut 120 is arranged on the end of the second strut 120.Tightening device 150 on the 3rd strut 130 is arranged on the middle part of the 3rd strut 130; Tightening device 150 on the 4th strut 140 is arranged on the middle part of the 4th strut 140.The first take-up device 160 can rap around to from the end of corresponding strut the tightening device 150 that is positioned at the strut middle part, like this, makes mutually to stagger between tightening device 150 on the one hand, also can carry out tensioning to the first take-up device on the other hand.In addition, 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.

As a second aspect of the present invention, In Figure 2-4, provide a kind of hoisting crane, comprise super lifting device, this super lifting device is the super lifting device in the various embodiments described above.Hoisting crane also comprises the first auxiliary 210; The first auxiliary 210 is arranged on the end of the principal arm 300 of hoisting crane.Like this, just can realize that by the first auxiliary 210 super far hanging carry and superelevation is hung and carried.Preferably, the first auxiliary 210 can be the lattice auxiliary, also can be the truss-like auxiliary.For example, hoisting crane can be car hosit, can be also crawler crane.

Owing to having adopted above-mentioned super lifting device, hoisting crane in the present invention hangs and carries under operating mode in superelevation, can strengthen the stability of getting on the bus of hoisting crane by supplemental support unit 190, with hoisting crane of the prior art, compare, the brachium of its principal arm can further increase, thereby realize that higher hanging carry height, be conducive to meet wind-powered electricity generation operation etc. and hang and carry a requirement.

Preferably, principal arm comprises prolongation fixed arm 600, and an end that extends fixed arm 600 is connected with the end of the telescopic boom of the principal arm 300 of hoisting crane, and the other end that extends fixed arm 600 is connected with the first auxiliary 210.Like this, just supplemental support unit 190 can be arranged on to the end of principal arm 300 by extending fixed arm 600.Preferably, the first support portion 191, the second support portion 192, the 3rd support portion 193 and the 4th support portion 194 of supplemental support unit 190 are around the circumferential setting that extends fixed arm 600.Further, the first support portion 191, the second support portion 192, the 3rd support portion 193 and the 4th support portion 194 are along the circumferential symmetry that extends fixed arm 600 or distribution equably.For example, the angle between the first support portion 191, the second support portion 192, the 3rd support portion 193 and the 4th support portion 194 is 90 degree.Simultaneously, the first auxiliary 210 is connected with prolongation fixed arm 600.

Please refer to Fig. 2-3, the super lifting device in the present invention is except realizing of the prior art hanging the mode of carrying, and the elevation angle that can also realize principal arm 300 is 90 vertically to hang the mode of carrying while spending.Preferably, in vertical superelevation, hang while carrying, the arm head of principal arm 300 also can arrange and extend fixed arm 600, supplemental support unit 190 be arranged on regularly extend fixed arm 600 around, thereby supplemental support unit 190 is installed on the arm head of principal arm 300.Like this, the common space structure that forms in principal arm 300, the first strut 110, the second strut 120, the 3rd strut 130, the 4th strut 140, the first take-up device 160, the second take-up device 170 and supplemental support unit 190, strengthened integral rigidity and the stability of boom system, the superelevation that is conducive to further lift crane is hung the lifting performance carried.Especially, the present invention collects vertical superelevation and hangs and carry and super far hanging is stated from one, and principal arm can, in 360 degree revolutions under operating mode arbitrarily, meet the different needs that carry operating mode that hang.

Preferably, hoisting crane also comprises the second auxiliary 220, the first end of the first auxiliary 210 is connected with the first end of the second auxiliary 220, the second end of the first auxiliary 210 is connected and first cam mechanism that is shaped with the second end of the second auxiliary 220 by the first attaching parts 240, and the first cam mechanism is connected with afterbody or the turntable 500 of hoisting crane by the 3rd take-up device 270.Like this, principal arm, the first strut 110, the second strut 120, the 3rd strut 130, the 4th strut 140, the first take-up device, the second take-up device and the first cam mechanism form a stable space structure jointly, have strengthened integral rigidity and the stability of boom system.

Preferably, hoisting crane also comprises the 3rd auxiliary 230, the first end of the second auxiliary 220 is connected directly or indirectly with the first end of the 3rd auxiliary 230, the second end of the second auxiliary 220 is connected and second cam mechanism that is shaped with the second end of the 3rd auxiliary 230 by the second attaching parts 250, and the first cam mechanism is connected with the 3rd take-up device 270 by the second cam mechanism.Like this, principal arm, the first strut 110, the second strut 120, the 3rd strut 130, the 4th strut 140, the first take-up device, the second take-up device, the first cam mechanism and the second cam mechanism form a stable space structure jointly, have further strengthened integral rigidity and the stability of boom system.

In one embodiment, as shown in Figure 3, the first strut 110, the second strut 120, the 3rd strut 130, the 4th strut 140 of super lifting device are adjustable to respectively the position corresponding with the first strut 110, the second strut 120, the 3rd strut 130, the 4th strut 140 of the supplemental support unit 190 of super lifting device.Owing to having adopted the mode in the present embodiment, therefore, install, operate and be very convenient.

In another embodiment, as shown in Figure 4, the first strut 110, the second strut 120, the 3rd strut 130, the 4th strut 140 of super lifting device are adjustable to respectively the position (position that for example be miter angle) interlaced with the first strut 110, the second strut 120, the 3rd strut 130 and the 4th strut 140 of the supplemental support unit 190 of super lifting device.Owing to having adopted alternative arrangement, therefore improved anti-twisting property, more be adapted to the occasion of over-height stacking operation.For example, super lifting device comprises for driving the oil cylinder of the first strut 110, the second strut 120, the 3rd strut 130, the 4th strut 140, just can drive the motion of each strut by oil cylinder, thereby the first strut 110, the second strut 120, the 3rd strut 130, the 4th strut 140 are adjustable to respectively to the position interlaced with the first strut 110, the second strut 120, the 3rd strut 130, the 4th strut 140 of the supplemental support unit 190 of super lifting device.

In addition, in a preferred embodiment, as shown in Figure 4, the first strut 110, the second strut 120, the 3rd strut 130 and each strut in the 4th strut 140 are connected by the first support portion 191, the second support portion 192, the 3rd support portion 193 and two corresponding support portions in the 4th support portion 194 of two the first take-up devices and supplemental support unit 190 respectively, thereby, further improved anti-twisting property.For example, the first strut 110 can be connected with the 3rd support portion 193 with the first support portion 191 respectively by two the first take-up devices.In the present embodiment, tightening device 150 comprises two parts can synchronously rotating, one end of two the first take-up devices on each strut in the first strut 110, the second strut 120, the 3rd strut 130 and the 4th strut 140 is wrapped in respectively on two parts of tightening device 150, and the other end support portion corresponding with two respectively is fixedly connected with (particularly being fixedly connected with the end of support portion).Like this, when tightening device 150 rotates, can synchronously to two the first take-up devices, carry out tensioning.

Hoisting crane in the present invention, when carrying out the big-elevation operation, needs to use supplemental support unit 190.When not needing to carry out the big-elevation operation, can not use supplemental support unit 190, now, the first take-up device is connected with the end of principal arm, thereby the rigidity of car load and stability are further enhanced.

Super, far hang under the mode of carrying (be tradition hang carry), hoisting crane in the present invention can change by suitable mode the interrelated geometrical parameters of super lifting device, under different operating modes, adopt the different mast subtended angles (being the subtended angle of each strut) that surpassed to carry out work, with the principal arm of realizing having surpassed steel rope and hoisting crane in the different Optimum Matching under carrier strip part and load case of hanging.

For example, Fig. 5 shows the schematic diagram of principal arm when complete contraction state; Fig. 6 shows the schematic diagram of principal arm when the full extension state.Under the state shown in Fig. 6, each strut of super lifting device all is positioned at and the first rightabout position of auxiliary 210, and the first strut 110 and the second strut 120 be the angle in outwards opening with respect to the 3rd strut 130 and the 4th strut 140, this mode of operation is that two mast supporting systems of the prior art can't realize.Under the mode of operation shown in Fig. 6, super lifting device (particularly having surpassed mast) can further strengthen integral rigidity and the stability of boom system, thereby can improve hoisting crane performance figure such as comprising work range, operating altitude and hoisting capacity.

In addition, because the first end of the first strut 110, the second strut 120, the 3rd strut 130 and the 4th strut 140 in the present invention is pivotably mounted on pedestal 180, therefore, the first strut 110 and the first strut 110, and second strut 120 and the 4th strut 140 can synchronously be pivoted to respectively the state shown in Fig. 7, thereby realize the mode of operation of two mast supporting systems of the prior art.In the state shown in Fig. 7, the first strut 110 and the first strut 110, and the second strut 120 and the V-shaped layout of the 4th strut 140.

Visible, the hoisting crane in the present invention has multiple mode of operation flexibly, not only can realize mode of operation of the prior art, can also realize the mode of operation that can't realize in prior art.

From Fig. 5-7, hoisting crane in the present invention adopts the fourth mast bar to surpass boom system (i.e. the first strut 110, the second strut 120, the 3rd strut 130 and the 4th strut 140), realized that different masts opens open, break through traditional design concept, greatly the lifting performance of lift crane.

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 strut (110), the second strut (120), the 3rd strut (130), the 4th strut (140) and supplemental support unit (190);
Described supplemental support unit (190) is arranged on the end of the principal arm (300) of described hoisting crane;
The first end of described the first strut (110), the second strut (120), the 3rd strut (130) and the 4th strut (140) is pivotably mounted on the principal arm (300) of described hoisting crane;
The second end of described the first strut (110), the second strut (120), the 3rd strut (130) and the 4th strut (140) is connected with described supplemental support unit (190) by the first take-up device (160) respectively; The second end of described the first strut (110), the second strut (120), the 3rd strut (130) and the 4th strut (140) is connected with the turntable of described hoisting crane by the second take-up device (170) respectively.
2. super lifting device according to claim 1, is characterized in that, described supplemental support unit (190) comprises the first support portion (191) arranged in a crossed manner, the second support portion (192), the 3rd support portion (193) and the 4th support portion (194).
3. super lifting device according to claim 1, it is characterized in that, described super lifting device also comprises tightening device (150), the number of described tightening device (150) is four, and described four tightening devices (150) are separately positioned on described the first strut (110), the second strut (120), the 3rd strut (130) and the 4th strut (140) above and are connected with corresponding described the first take-up device (160) respectively.
4. super lifting device according to claim 3, is characterized in that, the tightening device (150) on described the first strut (110) is arranged on the end of described the first strut (110); Tightening device (150) on described the second strut (120) is arranged on the end of described the second strut (120); Tightening device (150) on described the 3rd strut (130) is arranged on the middle part of described the 3rd strut (130); Tightening device (150) on described the 4th strut (140) is arranged on the middle part of described the 4th strut (140).
5. according to the described super lifting device of any one in claim 1-4, it is characterized in that, described super lifting device also comprises pedestal (180), and the first end of described the first strut (110), the second strut (120), the 3rd strut (130) and the 4th strut (140) is pivotably mounted on the principal arm (300) of described hoisting crane by described pedestal (180).
6. 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 1-5; Described hoisting crane also comprises the first auxiliary (210); Described the first auxiliary (210) is arranged on the end of the principal arm (300) of described hoisting crane.
7. hoisting crane according to claim 6, it is characterized in that, described principal arm comprises prolongation fixed arm (600), one end of described prolongation fixed arm (600) is connected with the end of the telescopic boom of the principal arm (300) of described hoisting crane, and the other end of described prolongation fixed arm (600) is connected with described the first auxiliary (210).
8. hoisting crane according to claim 6, it is characterized in that, described hoisting crane also comprises the second auxiliary (220), the first end of described the first auxiliary (210) is connected with the first end of described the second auxiliary (220), the second end of described the first auxiliary (210) is connected and first cam mechanism that is shaped with the second end of described the second auxiliary (220) by the first attaching parts (240), and described the first cam mechanism is connected with afterbody or the turntable (500) of described hoisting crane by the 3rd take-up device (270).
9. hoisting crane according to claim 8, it is characterized in that, described hoisting crane also comprises the 3rd auxiliary (230), the first end of described the second auxiliary (220) is connected directly or indirectly with the first end of described the 3rd auxiliary (230), the second end of described the second auxiliary (220) is connected and second cam mechanism that is shaped with the second end of described the 3rd auxiliary (230) by the second attaching parts (250), and described the first cam mechanism is connected with described the 3rd take-up device (270) by described the second cam mechanism.
10. hoisting crane according to claim 6, it is characterized in that, the supplemental support unit (190) of described super lifting device comprises the first support portion (191) arranged in a crossed manner, the second support portion (192), the 3rd support portion (193) and the 4th support portion (194), first strut (110) of described super lifting device, the second strut (120), the 3rd strut (130), the 4th strut (140) is adjustable to respectively the first support portion (191) with the supplemental support unit (190) of described super lifting device, the second support portion (192), the 3rd support portion (193) and the 4th corresponding position, support portion (194).
11. hoisting crane according to claim 6, it is characterized in that, the supplemental support unit (190) of described super lifting device comprises the first support portion (191) arranged in a crossed manner, the second support portion (192), the 3rd support portion (193) and the 4th support portion (194), first strut (110) of described super lifting device, the second strut (120), the 3rd strut (130), the 4th strut (140) is adjustable to respectively the first support portion (191) with the supplemental support unit (190) of described super lifting device, the second support portion (192), the 3rd support portion (193) and the 4th interlaced position, support portion (194).
12. hoisting crane according to claim 11, it is characterized in that, each strut in described the first strut (110), the second strut (120), the 3rd strut (130) and the 4th strut (140) is connected by two in described the first support portion (191), the second support portion (192), the 3rd support portion (193) and the 4th support portion (194) of two described the first take-up devices and described supplemental support unit (190) corresponding support portions respectively.
13. hoisting crane according to claim 12, it is characterized in that, described super lifting device also comprises tightening device (150), the number of described tightening device (150) is four, described four tightening devices (150) are separately positioned on described the first strut (110), the second strut (120), on the 3rd strut (130) and the 4th strut (140), described tightening device (150) comprises two parts can synchronously rotating, described the first strut (110), the second strut (120), one end of two described the first take-up devices on each strut in the 3rd strut (130) and the 4th strut (140) is wrapped in respectively on described two parts of described tightening device (150), the other end is fixedly connected with described two corresponding support portions respectively.
CN 201210154900 2012-05-17 2012-05-17 Crane and superlift device thereof CN102659032B (en)

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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
CN102874693B (en) * 2012-09-25 2014-10-15 三一重工股份有限公司 Crane and superlift device thereof
CN106185655A (en) * 2016-08-31 2016-12-07 徐州重型机械有限公司 Crane arm bracing means and crane

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