CN201240787Y - Flat-top tower crane - Google Patents

Flat-top tower crane Download PDF

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Publication number
CN201240787Y
CN201240787Y CNU2008200985997U CN200820098599U CN201240787Y CN 201240787 Y CN201240787 Y CN 201240787Y CN U2008200985997 U CNU2008200985997 U CN U2008200985997U CN 200820098599 U CN200820098599 U CN 200820098599U CN 201240787 Y CN201240787 Y CN 201240787Y
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CN
China
Prior art keywords
arm
described
boom
crane arm
hinged
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Application number
CNU2008200985997U
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Chinese (zh)
Inventor
李渝生
何大海
张春
刘敏
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重庆建工升立建设机械有限责任公司
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Priority to CNU2008200985997U priority Critical patent/CN201240787Y/en
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Publication of CN201240787Y publication Critical patent/CN201240787Y/en

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Abstract

The utility model discloses a block type tower crane, the root parts of an upper boom (2a) and a lower boom (2b) of an elevator boom (2) are respectively articulated with the top part and the middle part at the front end of a rotating transition joint (1), the distance of articulation pins at the root parts of the upper boom and the lower boom (2a, 2b) is 1.6 to 2m along the vertical direction, a cab (4) is arranged at the lower half part of the rotating transition joint (1); the root part of a boom (3a) of a balance arm (3) is articulated with the middle part at the rear part of the rotating transition joint (1), the upper end of a pulling rod (3b) of the balance arm (3) is articulated with the top part at the rear end of the rotating transition joint (1). The elevator boom of the block type tower crane has convenient, safe and rapid assembly and disassembly, the cost is saved; the crane is suitable for cross operation of a plurality of the tower cranes, collision can not easily happen, the safety is high; the crane can be used in the occasions that the height is limited or changing arms are long, the suitability is strong; fatigue stress of the steel structure of the elevator boom is high, the service life is long, and the safety performance is greatly improved.

Description

Cab over type tower machine

Technical field

The utility model relates to construction hoisting machinery, specifically, relates to a kind of tower crane.

Background technology

Tower crane is a construction trade elevator machinery commonly used, particularly in recent years, the rise of skyscraper, the body of the tower of tower crane is more and more higher, and in the modern urban construction, owing to concentrate exploitation, construction, make that the situation of many tower machines cross-operation is also more and more, this has proposed new problem with regard to giving traditional tower crane.As shown in Figure 1, traditional tower crane is at the top of revolution transition segment 1, upwards be fixed with " A " shape tower cap 6, the top front end of revolution transition segment 1 and the lower boom 2b root of crane arm 2 are hinged, the top boom 2a of crane arm 2 is hinged with two crane arm pull bar 2c, the other end of two crane arm pull bar 2c all is hinged on the pinnacle of a pagoda place of tower cap 6, and crane arm 2 is subjected to the pulling force of two crane arm pull bar 2c by top boom 2a and unsettled; The top rear of revolution transition segment 1 and the chord member 3a root of equilibrium arm 3 are hinged, and also are hinged with equilibrium arm pull bar 3b on this chord member 3a, and the other end of equilibrium arm pull bar 3b also is hinged on the place, pinnacle of a pagoda of tower cap 6.Thereby the effect of conventional tower machine tower cap, crane arm pull bar and balance arm brace are installed exactly, thereby by pull bar suspention crane arm and equilibrium arm.

The major defect of this conventional tower machine has: 1, crane arm mounting or dismounting inconvenience, and not only dangerous high, and the expense costliness.At present, the crane arm of conventional tower machine is installed, and is earlier that each arm joint assembling is in aggregates, and set up the crane arm pull bar, pull bar is put into the clamp of top boom after, by other weight-lifting equipment with the crane arm integral lifting, with revolution transition segment hinge knot, the element quality of installation is big, during erection cost, complexity; And behind the high worker of common engineering, the body of the tower of tower machine has risen to the higher position, dismantles crane arm in the air at height, dangerous high, particularly inner climbing type tower machine raises along with the increase of depth of building, the tower machine can't descend after raising, and the dismounting crane arm can only carry out in the air at height.During dismounting, front end arm joint from crane arm, and institute's pivotally attached crane arm pull bar on the top boom need be dismantled, after last root crane arm pull bar is dismantled, the remainder of crane arm is not owing to there is pulling force to support, need partly suspend in midair by the crane arm that other weight-lifting equipment will not dismantled, after the swivel pin for the treatment of crane arm lower boom root is dismantled, this part crane arm integral body is transferred to ground, carry out the dismounting of arm joint again, thereby the element quality of dismounting is big, dismounting is time-consuming, and very inconvenience is dangerous again, causes cost of dismantling also high.2, because the height of tower cap itself is higher, when many tower machine cross-operation, the tower cap is collided by the crane arm of contiguous tower machine easily, causes safety misadventure.3, because the tower cap has increased the height of tower machine, make the tower machine be subjected to the place of limitation in height, can't use as by the airport, in the tunnel, in the factory building and the workyard that has high tension cord to exist at some.4, owing to be subjected to the pulling force of crane arm pull bar, be the difference of load position according to crane carriage, the suffered internal stress of upper and lower chord member of crane arm is a reverse stress, makes the easy fatigue damage of upper and lower chord member, influences the safety of tower machine.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of cab over type tower machine that is fit to the cross-operation of many tower machines, and convenient, the safety, quick of its crane arm mounting or dismounting, and crane arm fatigue of steel structures intensity height are safe.

The technical solution of the utility model is as follows: a kind of cab over type tower machine, comprise the revolution transition segment that is arranged on body of the tower top, on the revolution transition segment, be fixed with operator's compartment, before this revolution transition segment, the rear end is hinged with crane arm and equilibrium arm respectively, be hinged with the equilibrium arm pull bar on the chord member of described equilibrium arm, the top boom of described crane arm and lower boom root are hinged with the top and the middle part of described revolution transition segment front end respectively, on described, the distance of the swivel pin in the vertical direction of lower boom root is 1.6~2m, and described operator's compartment is positioned at the latter half of this revolution transition segment; The middle part of the chord member root of described equilibrium arm and described revolution transition segment rear end is hinged, and the top of the other end of described equilibrium arm pull bar and described revolution transition segment rear end is hinged.

The utility model has been cancelled the tower cap, traditional revolution transition segment is increased, operator's compartment only is positioned at the latter half of revolution transition segment, distance at vertical direction between the upper and lower chord member of crane arm increases greatly, crane arm is hinged on the first half of revolution transition segment front end, the crane arm top boom also is hinged on the revolution transition segment, thereby cancelled the crane arm pull bar, the suffered stress of top boom is tensile stress, and the suffered stress of lower boom is compression effort, and upper and lower chord member is under the effect of simple stress, and strength at repeated alternation is improved, long service life, safety improves greatly; The more important thing is, owing to there is not the crane arm pull bar, the crane arm dismounting is very convenient, owing to there is the hinge-point of crane arm root to support, do not need to use other lifting appliance to suspend crane arm in midair, only need utilize the hoist mechanism of tower machine itself and a pole-climbing crane arm arm joint can be dismantled by joint from front end, element quality is little, safety, quick, expense is also lower.The tower machine of no tower cap when the cross-operation of Duo Taita machine, is difficult for collision, and can adapts to the special place operation that some is subjected to limitation in height.

The top boom of described crane arm is a round steel.Solid round steel intensity is higher.

Front end is hinged with connecting panel at the top of described revolution transition segment, and the top boom root of the front end of this connecting panel and described crane arm is hinged.The revolution transition segment is connected with top boom by connecting panel.

The lower boom of described crane arm is a square tube, and the length of side of square tube is 120~160mm.Its objective is the intensity that increases lower boom.

The chord member of described equilibrium arm is a H shaped steel.Because the upper end of equilibrium arm pull bar is hinged on the revolution transition segment, the angle of equilibrium arm pull bar and horizontal surface diminishes, and the horizontal axis power that the equilibrium arm chord member is subjected to increases, thereby chord member employing H shaped steel, to increase its intensity.

The cross-sectional plane of described crane arm front end the 1st~3 arm joint is less than the cross-sectional plane of crane arm remainder.Because the load that the crane arm front end bears is less, and Front-end Design is become small cross sections, can alleviate the weight of crane arm front end, improves the strained condition of crane arm steel structure.

As preferably, described crane arm front end the 3rd arm joint is the transition arm joint of variable section.Crane arm front end the 1st, 2 arms joint is small bore arm joint, and the 3rd arm joint is as the transition arm joint of small bore arm joint with all the other heavy in section arm joints.

The beneficial effects of the utility model are:

1, the element quality of crane arm mounting or dismounting is little, need not install and remove pull bar, can dismantle by joint, thereby mounting or dismounting is convenient, safety, quick cost saving aloft;

2, suitable many tower machines cross-operation is difficult for bumping, and is safe;

3, can be in the occasion that particular restriction is highly arranged, as by the airport, in the tunnel, in the factory building and the workyard operation that has high tension cord to exist; Because the mounting or dismounting of the arm of crane arm joint are convenient, help becoming the operation of arm amplitude at differing heights, suitability is strong;

4, the suffered internal stress of upper and lower chord member of crane arm is a simple stress, fatigue of steel structures intensity height, and long service life, safety improves greatly.

Description of drawings

Fig. 1 is the structural representation of conventional tower chain-drive section.

Fig. 2 is a structural representation of the present utility model.

Fig. 3 is the be hinged enlarged view at position of revolution transition segment and crane arm, equilibrium arm and balance arm brace among Fig. 2.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As Fig. 2, shown in Figure 3, the utility model mainly is made up of revolution transition segment 1, crane arm 2, equilibrium arm 3, operator's compartment 4 and connecting panel 5.Wherein, revolution transition segment 1 is arranged on body of the tower top, the latter half at revolution transition segment 1 is fixed with operator's compartment 4, front end the first half of this revolution transition segment 1 is hinged with crane arm 2, the top boom 2a of crane arm 2 is a round steel, and the root of top boom 2a is hinged with turning round transition segment 1 front top institute pivotally attached connecting panel 5, and connecting panel 5 roughly is " H " shape, its two ends band fork, the prong by two ends are hinged with the otic placode of top boom 2a and revolution transition segment 1 respectively; The lower boom 2b of crane arm 2 is a square tube, and the length of side of square tube is 130mm, and the root of lower boom 2b is hinged with revolution transition segment 1 front center, and the distance of the swivel pin in the vertical direction of crane arm 2 upper and lower chord member 2a, 2b root is 1.7m.The cross-sectional plane of crane arm 2 front ends the 1st arm joint and the 2nd arm joint is less than the cross-sectional plane of all the other arm joints on the crane arm 2, be front end the 1st arm joint and the top boom 2a of the 2nd arm joint and the distance of lower boom 2b in the vertical direction, save the distance of in the vertical direction between upper and lower chord member 2a, the 2b less than crane arm 2 all the other arms, crane arm 2 front ends the 3rd arm joint is variable section, is as the small bore arm joint of its front end and the transition arm joint of all the other heavy in section arm joints.Design like this, can alleviate the weight of crane arm 2 front ends, improve the strained condition of crane arm steel structure.

Referring to Fig. 2, Fig. 3, the middle part, rear end of revolution transition segment 1 is hinged with the chord member 3a root of equilibrium arm 3, this chord member 3a adopts H shaped steel, is hinged with equilibrium arm pull bar 3b at the middle part of chord member 3a, and the other end of equilibrium arm pull bar 3b is hinged with the top of revolution transition segment 1 rear end.

Claims (7)

1, a kind of cab over type tower machine, comprise the revolution transition segment (1) that is arranged on body of the tower top, on revolution transition segment (1), be fixed with operator's compartment (4), before this revolution transition segment (1), the rear end is hinged with crane arm (2) and equilibrium arm (3) respectively, be hinged with equilibrium arm pull bar (3b) on the chord member (3a) of described equilibrium arm (3), it is characterized in that: the top boom (2a) of described crane arm (2) and lower boom (2b) root are hinged with the top and the middle part of described revolution transition segment (1) front end respectively, on described, lower boom (2a, 2b) distance of the swivel pin in the vertical direction of root is 1.6~2m, and described operator's compartment (4) is positioned at the latter half of this revolution transition segment (1); The middle part of chord member (3a) root of described equilibrium arm (3) and described revolution transition segment (1) rear end is hinged, and the top of the other end of described equilibrium arm pull bar (3b) and described revolution transition segment (1) rear end is hinged.
2, cab over type tower machine according to claim 1 is characterized in that: the top boom (2a) of described crane arm (2) is a round steel.
3, cab over type tower machine according to claim 1 is characterized in that: the top front end at described revolution transition segment (1) is hinged with connecting panel (5), and top boom (2a) root of front end of this connecting panel (5) and described crane arm (2) is hinged.
4, cab over type tower machine according to claim 1 and 2 is characterized in that: the lower boom (2b) of described crane arm (2) is a square tube, and the length of side of square tube is 120~160mm.
5, cab over type tower machine according to claim 1 is characterized in that: the chord member (3a) of described equilibrium arm (3) is a H shaped steel.
6, according to claim 1 or 2 or 4 described cab over type tower machines, it is characterized in that: the cross-sectional plane of described crane arm (2) front end the 1st~3 arm joint, less than the cross-sectional plane of crane arm (2) remainder.
7, cab over type tower machine according to claim 6 is characterized in that: described crane arm (2) front end the 3rd arm joint is the transition arm joint of variable section.
CNU2008200985997U 2008-06-20 2008-06-20 Flat-top tower crane CN201240787Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102765667A (en) * 2012-07-20 2012-11-07 中联重科股份有限公司 Combined arm joint of crane, crane and mounting method of crane
CN102942126A (en) * 2012-11-19 2013-02-27 徐州重型机械有限公司 Balance arm of tower-type crane and tower-type crane
CN103171982A (en) * 2013-04-18 2013-06-26 云南冶金昆明重工有限公司 Hinge assembly of flat-top tower crane
CN103910291A (en) * 2014-03-11 2014-07-09 徐州建机工程机械有限公司 Connection structure of crane arm with flatted tower top
CN105174079A (en) * 2015-10-21 2015-12-23 无锡港盛重型装备有限公司 Novel tower crane
CN106315426A (en) * 2016-08-31 2017-01-11 安徽同济建设集团有限责任公司 Block form tower crane mounting and jacking method for assembled building
CN108996401A (en) * 2018-08-02 2018-12-14 芜湖市新海域智能科技有限公司 A kind of flat-top tower crane effectively reducing boom self weight
CN110395668A (en) * 2019-08-08 2019-11-01 新疆庞源机械工程有限公司 A kind of cantilever crane of installation derrick crane attachment pull rod

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102765667A (en) * 2012-07-20 2012-11-07 中联重科股份有限公司 Combined arm joint of crane, crane and mounting method of crane
CN102765667B (en) * 2012-07-20 2014-05-21 中联重科股份有限公司 Combined arm joint of crane, crane and mounting method of crane
CN102942126A (en) * 2012-11-19 2013-02-27 徐州重型机械有限公司 Balance arm of tower-type crane and tower-type crane
CN103171982A (en) * 2013-04-18 2013-06-26 云南冶金昆明重工有限公司 Hinge assembly of flat-top tower crane
CN103910291A (en) * 2014-03-11 2014-07-09 徐州建机工程机械有限公司 Connection structure of crane arm with flatted tower top
CN105174079A (en) * 2015-10-21 2015-12-23 无锡港盛重型装备有限公司 Novel tower crane
CN106315426A (en) * 2016-08-31 2017-01-11 安徽同济建设集团有限责任公司 Block form tower crane mounting and jacking method for assembled building
CN106315426B (en) * 2016-08-31 2018-06-19 安徽同济建设集团有限责任公司 A kind of assembling flat-top tower crane for building is installed, jacking method
CN108996401A (en) * 2018-08-02 2018-12-14 芜湖市新海域智能科技有限公司 A kind of flat-top tower crane effectively reducing boom self weight
CN110395668A (en) * 2019-08-08 2019-11-01 新疆庞源机械工程有限公司 A kind of cantilever crane of installation derrick crane attachment pull rod

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GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20130816

Address after: 402260 Chongqing city Jiangjin Luohuang Industrial Park B District

Patentee after: Chongqing Construction Engineering Industry Co., Ltd.

Address before: 400082 Chongqing Dadukou eggplant Creek lumber Village No. 1

Patentee before: Chongqing Construction Industry Shengli Building Machinery Co., Ltd.

COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 400082 DADUKOU, CHONGQING TO: 402260 JIANGJIN, CHONGQING

ASS Succession or assignment of patent right

Owner name: CHONGQING CONSTRUCTION ENGINEERING INDUSTRY CO., L

Free format text: FORMER OWNER: CHONGQING CONSTRUCTION INDUSTRY SHENGLI BUILDING MACHINERY CO., LTD.

Effective date: 20130816

C41 Transfer of patent application or patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090520

Termination date: 20160620

CF01 Termination of patent right due to non-payment of annual fee