CN209507442U - A variety of crane arm combined tower cranes - Google Patents

A variety of crane arm combined tower cranes Download PDF

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Publication number
CN209507442U
CN209507442U CN201822157467.3U CN201822157467U CN209507442U CN 209507442 U CN209507442 U CN 209507442U CN 201822157467 U CN201822157467 U CN 201822157467U CN 209507442 U CN209507442 U CN 209507442U
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China
Prior art keywords
crane arm
arm
luffing
crane
width
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Active
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CN201822157467.3U
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Chinese (zh)
Inventor
杨慧杰
肖华
薛振
刘威
赵阳
董慧君
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Weierlide Construction Machinery Co Ltd
Xuzhou Weier Heavy Industry Technology Co Ltd
Hunan Best Technology Co Ltd
Original Assignee
Anhui Weierlide Construction Machinery Co Ltd
Xuzhou Weier Heavy Industry Technology Co Ltd
Hunan Best Technology Co Ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/06—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 with jibs mounted for jibbing or luffing movements
    • 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
    • B66C23/16—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 with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/66—Outer or upper end constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The utility model discloses one kind of multiple crane arm combined tower cranes, comprising: tower body, the tower body are scalable along the vertical direction；Revolving platform, the revolving platform are located at the upper end of the tower body；Jib lubbing mechanism, the jib lubbing mechanism are located on the revolving platform, and the jib lubbing mechanism includes luffing executing agency and luffing drag-line；Crane arm, one end of the crane arm are movably connected with the revolving platform or the jib lubbing mechanism, and the other end of the crane arm is connected to be driven by the luffing drag-line with the luffing drag-line；Suspension hook, the suspension hook are located on the other end of the crane arm；First luffing driving mechanism, the first luffing driving mechanism are connected to drive the crane arm to move with the luffing drag-line.A variety of crane arm combined tower cranes are simple in construction, easy to disassemble and assemble, can satisfy the lifting operation mode in a variety of situations.

Description

A variety of crane arm combined tower cranes
Technical field
The utility model relates to crane technical fields, and in particular to it is a kind of can quick assembling a variety of crane arm combined columns Formula crane.
Background technique
According to nation-building needs, the installation especially with regard to large scale equipments such as nuclear power, wind-powered electricity generation, petrochemical industries needs, right Demand is further increased in the elevating capacity of large lifting equipment, especially in wind-powered electricity generation installing area.With Wind Power In China market Constantly developing, high-quality wind field resource are gradually installed completion, and the complete machine mounting height of wind power equipment also gradually increases.
The second half year in 2018 has begun the Wind turbines of 120 meters of installation or more, with constantly climbing for wind-powered electricity generation generated output It rises, the following years install the wind-powered electricity generation that will appear 140 meters of even 160 meters height.In existing lifting equipment, All-terrain lifting Machine self-assembles speed is fast, but because the box-structure of its cantilever crane limits, lifting altitude is small, and elevating capacity is weak, is unable to satisfy super The installation of large-scale wind electricity.The elevating capacity of crawler crane can satisfy wind-powered electricity generation installation requirement, but because it is loose mail assembling Crane, therefore assembling cycle is long, working efficiency is low.Common ultra-large type derrick crane, because of structural shape and mounting means Limitation, assembling cycle is long, at the scene without attachment in the case where elevating capacity it is weak.For example, the QLY1560 of Zhengzhou newly generous production is set Although standby solve the technical issues of short distance transition in wind-powered electricity generation place, there are still the problems that installation effectiveness is slow.31 SCC1020 equipment installation effectiveness is high, and elevating capacity is big, but due to there are the technological deficiency of structural shape, safety and reliable Property is lower.Ge Lufu GTK1100 is promoted with respect to all terrain crane elevating capacity, but be not still able to satisfy 140 meters- 160 meters of lifting altitude elevating capacity corresponding with its.
Therefore, the lifting equipment for being mainly used for wind-powered electricity generation installation currently on the market is not able to satisfy the height that wind-powered electricity generation is installed gradually and wants It asks, to meet the specific duty requirements that wind-powered electricity generation installs market, it is necessary to which lifting altitude is carried out to existing wind-powered electricity generation installation lifting equipment Promotion.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.
For this purpose, the utility model proposes one kind of multiple crane arm combined tower cranes, a variety of crane arm combination tower types Crane assembly is simple, can satisfy the lifting operation mode in a variety of situations.
According to a variety of crane arm combined tower cranes of the utility model embodiment, comprising: tower body, the tower body is along perpendicular Histogram is to scalable；Revolving platform, the revolving platform are located at the upper end of the tower body；Jib lubbing mechanism, the jib lubbing mechanism are set On the revolving platform, the jib lubbing mechanism includes luffing executing agency and luffing drag-line；Crane arm, the one of the crane arm End is movably connected with the revolving platform and the jib lubbing mechanism, realizes the operation luffing of crane arm；Suspension hook, the suspension hook are located at On the other end of the crane arm；First luffing driving mechanism, the first luffing driving mechanism are connected with the luffing drag-line To drive the crane arm to move.
According to a variety of crane arm combined tower cranes of the utility model embodiment, using tower body, revolving platform, luffing The device that mechanism, crane arm, suspension hook and the first luffing driving mechanism combine, structure is simple, easy to disassemble, can satisfy big height Spend the operation needs of big elevating capacity.
According to the utility model one embodiment, a variety of crane arm combined tower cranes further include: wind-powered electricity generation arm Head, one end of the wind-powered electricity generation arm head and the other end of the crane arm are detachably connected, the other end of the wind-powered electricity generation arm head and institute State suspension hook connection.
According to the utility model one embodiment, a variety of crane arm combined tower cranes further include: width arm, institute The one end for stating width arm and the other end of the crane arm are hinged, and the other end of the width arm is connect with the suspension hook；Width arm strut, One end of the width arm strut and one end of the width arm and/or the other end of the crane arm are hinged, the width arm strut The other end is hanging；Preventer guy, one end of the preventer guy are connect with the other end of the width arm, the preventer guy it is another The width arm strut is passed through in one end；Second luffing driving mechanism, the second luffing driving mechanism are another with the preventer guy One end connection, the second luffing driving mechanism drive the other end of the width arm to go up and down.
According to the utility model one embodiment, a variety of crane arm combined tower cranes, further includes: auxiliary support Bar, one end of the jury strut and the other end of the crane arm are hinged, and the other end of the jury strut is hanging, described auxiliary The other end of drag-line is helped successively to connect by the width arm strut and the jury strut with the second luffing driving mechanism.
According to the utility model one embodiment, the other end of the preventer guy is adjacent to one end of the crane arm.
According to the utility model one embodiment, the other end of the preventer guy is adjacent to the middle and upper part of the crane arm.
According to the utility model one embodiment, the junction company of the width arm strut and the crane arm and the width arm It connects, the length of the width arm strut is greater than the length of the jury strut.
According to the utility model one embodiment, the jib lubbing mechanism includes: crane arm hinge extension mechanism, the lifting Arm hinge extension mechanism is located on the revolving platform of derrick crane, and the level on the top of the crane arm hinge extension mechanism is high Degree is greater than the level height of lower part, the top of one end of the crane arm and the crane arm hinge extension mechanism movably phase Even；The top of first luffing support rod, one end of the first luffing support rod and the crane arm hinge extension mechanism can pivot Turn ground to be connected, the other end of the first luffing support rod is far from the crane arm hinge extension mechanism；Second luffing support rod, One end of the second luffing support rod is pivotly connected with the top of the crane arm hinge extension mechanism and with described One luffing support rod cooperatively forms opening backwards to the V-shaped of the crane arm, one end of the luffing drag-line and the crane arm The other end be connected, the other end of the luffing drag-line passes through the first luffing support rod and the second luffing support rod At least one is connected to be driven by the first luffing driving mechanism with the first luffing driving mechanism.
According to the utility model one embodiment, what the crane arm hinge extension mechanism was formed as extending along the vertical direction The lower end of column, the crane arm hinge extension mechanism is connected with the revolving platform, the crane arm hinge extension mechanism Upper end is connected with the crane arm, the first luffing support rod and the second luffing support rod.
According to the utility model one embodiment, the crane arm hinge extension mechanism and the revolving platform are integrally formed Or be formed as a part of the revolving platform.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:
Fig. 1 is the structural schematic diagram according to a variety of crane arm combined tower cranes of an embodiment of the present invention；
Fig. 2 is illustrated according to the part-structure of a variety of crane arm combined tower cranes of another embodiment of the utility model Figure；
Fig. 3 is illustrated according to the part-structure of a variety of crane arm combined tower cranes of another embodiment of the utility model Figure；
Fig. 4 is illustrated according to the part-structure of a variety of crane arm combined tower cranes of another embodiment of the utility model Figure；
Fig. 5 is illustrated according to the part-structure of a variety of crane arm combined tower cranes of another embodiment of the utility model Figure.
Appended drawing reference:
A variety of crane arm combined tower cranes 100；
Tower body 10；Revolving platform 20；
Jib lubbing mechanism 30；Luffing drag-line 31；Crane arm hinge extension mechanism 32；First luffing support rod 33；Second luffing Support rod 34；
Crane arm 40；Wind-powered electricity generation arm head 41；Width arm 42；Width arm strut 43；Preventer guy 44；Jury strut 45；
Suspension hook 50.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model System.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.
Below with reference to the accompanying drawings a variety of crane arm combined tower cranes according to the utility model embodiment are specifically described 100。
As depicted in figs. 1 and 2, according to a variety of crane arm combined tower cranes 100 of the utility model embodiment, packet It includes: tower body 10, revolving platform 20, jib lubbing mechanism 30, crane arm 40, suspension hook 50 and the first luffing driving mechanism.
Specifically, tower body 10 is scalable along the vertical direction, revolving platform 20 is located at the upper end of tower body 10, jib lubbing mechanism 30 It is located on revolving platform 20, jib lubbing mechanism 30 includes luffing executing agency and luffing drag-line 31, one end of crane arm 40 and revolution Platform 20 and jib lubbing mechanism 30 are movably connected, and realize that the operation luffing of crane arm, suspension hook 50 are located on the other end of crane arm 40, First luffing driving mechanism is connected to drive crane arm 40 to move with luffing drag-line 31, has the combination of principal arm operating condition crane arm.
As a result, according to a variety of crane arm combined tower cranes 100 of the utility model embodiment, using tower body 10, return Turn the device that platform 20, jib lubbing mechanism 30, crane arm 40, suspension hook 50 and the first luffing driving mechanism combine, easy to disassemble, energy Enough meet the operation needs of the big elevating capacity of big height.
As shown in figure 3, one embodiment according to the present utility model, a variety of crane arm combined tower cranes 100 are also wrapped Include: wind-powered electricity generation arm head 41, one end of wind-powered electricity generation arm head 41 and the other end of crane arm 40 are detachably connected, the other end of wind-powered electricity generation arm head 41 It is connect with suspension hook 50, that is to say, that there is the combination of wind-powered electricity generation arm operating condition crane arm.
In some specific embodiments of the utility model, a variety of crane arm combined tower cranes 100 further include width Arm 42, width arm strut 43, preventer guy 44 and the second luffing driving mechanism.
As shown in figure 4, specifically, one end of width arm 42 and the other end of crane arm 40 are hinged, the other end of width arm 42 with Suspension hook 50 connects, and one end of width arm strut 43 and the other end of one end of width arm 42 and/or crane arm 40 are hinged, width arm strut 43 The other end it is hanging, one end of preventer guy 44 is connect with the other end of width arm 42, and the other end of preventer guy 44 passes through width arm Strut 43, the second luffing driving mechanism are connect with the other end of preventer guy 44, and the second luffing driving mechanism drives width arm 42 Other end lifting, that is to say, that mutual by width arm 42, width arm strut 43, preventer guy 44 and second luffing driving mechanism etc. Cooperation has fixed auxiliary operating condition crane arm combination.
As shown in figure 5, further, a variety of crane arm combined tower cranes 100 further include jury strut 45, auxiliary support One end of bar 45 and the other end of crane arm 40 are hinged, and the other end of jury strut 45 is hanging, the other end of preventer guy 44 according to It is secondary to be connect by width arm strut 43 and jury strut 45 with the second luffing driving mechanism, pass through jury strut 45 and width arm 42, width Arm strut 43, preventer guy 44, second luffing driving mechanism etc. cooperate, and have the combination of tower auxiliary operating condition crane arm.
Optionally, the other end of preventer guy 44 is adjacent to one end of crane arm 40.
One embodiment according to the present utility model, the other end of preventer guy 44 is adjacent to the middle and upper part of crane arm 40.
One embodiment according to the present utility model, width arm strut 43 are connect with the junction of crane arm 40 and width arm 42, The length of width arm strut 43 is greater than the length of jury strut 45.
In some specific embodiments of the utility model, jib lubbing mechanism 30 include crane arm hinge extension mechanism 32, First luffing support rod 33 and the second luffing support rod 34.
Specifically, crane arm hinge extension mechanism 32 is located on the revolving platform 20 of derrick crane, and crane arm hinge prolongs The level height for stretching the top of mechanism 32 is greater than the level height of lower part, one end of crane arm 40 and crane arm hinge extension mechanism 32 top is movably connected, and one end of the first luffing support rod 33 and the top of crane arm hinge extension mechanism 32 are pivotable Ground is connected, and the other end of the first luffing support rod 33 is far from crane arm hinge extension mechanism 32, and the one of the second luffing support rod 34 End is pivotly connected with the top of crane arm hinge extension mechanism 32 and cooperatively forms opening back with the first luffing support rod 33 To the V-shaped of crane arm 40, one end of luffing drag-line 31 is connected with the other end of crane arm 40, and the other end of luffing drag-line 31 is worn At least one for crossing the first luffing support rod 33 and the second luffing support rod 34 is connected with the first luffing driving mechanism by first The driving of luffing driving mechanism.
Further, crane arm hinge extension mechanism 32 is formed as the column extended along the vertical direction, and crane arm hinge prolongs The lower end for stretching mechanism 32 is connected with revolving platform 20, the upper end of crane arm hinge extension mechanism 32 and crane arm 40, the first luffing Support rod 33 is connected with the second luffing support rod 34.
Optionally, crane arm hinge extension mechanism 32 and revolving platform 20 are integrally formed or are formed as the one of revolving platform 20 Part.
To sum up, according to a variety of crane arm combined tower cranes 100 of the utility model embodiment, using tower body 10, the device that revolving platform 20, jib lubbing mechanism 30, crane arm 40, suspension hook 50 and the first luffing driving mechanism combine, convenient for tearing open It unloads, the operation needs of the big elevating capacity of big height can not only be met, also there is principal arm operating condition, wind-powered electricity generation arm operating condition, tower auxiliary The multi-states crane arm combinations such as operating condition, fixed auxiliary operating condition are to meet the lifting operation mode under different situations.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that: These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective And modification, the scope of the utility model are defined by the claims and their equivalents.

Claims (10)

1. one kind of multiple crane arm combined tower cranes characterized by comprising
Tower body, the tower body are scalable along the vertical direction；
Revolving platform, the revolving platform are located at the upper end of the tower body；
Jib lubbing mechanism, the jib lubbing mechanism are located on the revolving platform, and the jib lubbing mechanism includes luffing executing agency and change Width drag-line；
Crane arm, the crane arm and the revolving platform and the jib lubbing mechanism are movably connected with the work for realizing crane arm Industry luffing；
Suspension hook, the suspension hook are located on the other end of the crane arm；
First luffing driving mechanism, the first luffing driving mechanism are connected to drive the crane arm to transport with the luffing drag-line It is dynamic.
2. a variety of crane arm combined tower cranes according to claim 1, which is characterized in that further include:
Wind-powered electricity generation arm head, one end of the wind-powered electricity generation arm head and the other end of the crane arm are detachably connected, the wind-powered electricity generation arm head The other end is connect with the suspension hook.
3. a variety of crane arm combined tower cranes according to claim 1, which is characterized in that further include:
Width arm, one end of the width arm and the other end of the crane arm are hinged, and the other end and the suspension hook of the width arm connect It connects；
Width arm strut, one end of the width arm strut and one end of the width arm and/or the other end of the crane arm are hinged, institute The other end for stating width arm strut is hanging；
Preventer guy, one end of the preventer guy are connect with the other end of the width arm, the other end warp of the preventer guy Cross the width arm strut；
Second luffing driving mechanism, the second luffing driving mechanism are connect with the other end of the preventer guy, and described second Luffing driving mechanism drives the other end of the width arm to go up and down.
4. a variety of crane arm combined tower cranes according to claim 3, which is characterized in that further include:
Jury strut, one end of the jury strut and the other end of the crane arm are hinged, the other end of the jury strut Vacantly, the other end of the preventer guy successively drives by the width arm strut and the jury strut and second luffing Mechanism connection.
5. a variety of crane arm combined tower cranes according to claim 3, which is characterized in that the preventer guy it is another One end is adjacent to one end of the crane arm.
6. a variety of crane arm combined tower cranes according to claim 3, which is characterized in that the preventer guy it is another One end is adjacent to the middle and upper part of the crane arm.
7. a variety of crane arm combined tower cranes according to claim 4, which is characterized in that the width arm strut and institute It states crane arm to connect with the junction of the width arm, the length of the width arm strut is greater than the length of the jury strut.
8. a variety of crane arm combined tower cranes according to claim 1, which is characterized in that the jib lubbing mechanism packet It includes:
Crane arm hinge extension mechanism, the crane arm hinge extension mechanism is located on the revolving platform of derrick crane, described The level height on the top of crane arm hinge extension mechanism be greater than lower part level height, one end of the crane arm with described The top of weighing arm hinge extension mechanism is movably connected；
The top of first luffing support rod, one end of the first luffing support rod and the crane arm hinge extension mechanism can pivot Turn ground to be connected, the other end of the first luffing support rod is far from the crane arm hinge extension mechanism；
The top of second luffing support rod, one end of the second luffing support rod and the crane arm hinge extension mechanism can pivot Turn ground to be connected and cooperatively form opening backwards to the V-shaped of the crane arm, the luffing drag-line with the first luffing support rod One end be connected with the other end of the crane arm, the other end of the luffing drag-line passes through the first luffing support rod and institute At least one for stating the second luffing support rod is connected by the first luffing driving mechanism with the first luffing driving mechanism Driving.
9. a variety of crane arm combined tower cranes according to claim 8, which is characterized in that the crane arm hinge prolongs Stretch the column that mechanism is formed as extending along the vertical direction, lower end and the revolving platform phase of the crane arm hinge extension mechanism Even, the upper end of the crane arm hinge extension mechanism and the crane arm, the first luffing support rod and second luffing Support rod is connected.
10. a variety of crane arm combined tower cranes according to claim 9, which is characterized in that the crane arm hinge Extension mechanism and the revolving platform are integrally formed or are formed as a part of the revolving platform.
CN201822157467.3U 2018-11-09 2018-12-21 A variety of crane arm combined tower cranes Active CN209507442U (en)

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CN86207479U (en) * 1986-10-22 1987-09-23 水电部郑州机械设计研究所 Track type multiple character tower crane
CN101357739B (en) * 2008-06-02 2011-07-27 中国电力科学研究院 Column crane special for movable arm type group tower
CN101962155B (en) * 2009-07-23 2012-08-01 中昇建机(南京)重工有限公司 Special lifting machine for lifting wind power generation equipment
CN102491207B (en) * 2011-12-20 2013-07-24 中联重科股份有限公司 Luffing jib tower crane
CN203728443U (en) * 2013-09-29 2014-07-23 国家电网公司 Combined tower crane with main and auxiliary boom structure

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