CN205892576U - Fast set up tower crane's jib loading boom turns over a device - Google Patents

Fast set up tower crane's jib loading boom turns over a device Download PDF

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Publication number
CN205892576U
CN205892576U CN201620704781.7U CN201620704781U CN205892576U CN 205892576 U CN205892576 U CN 205892576U CN 201620704781 U CN201620704781 U CN 201620704781U CN 205892576 U CN205892576 U CN 205892576U
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CN
China
Prior art keywords
arm
crane
folding
link
folding arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620704781.7U
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Chinese (zh)
Inventor
周红卫
王海洋
吕旭
李昌军
霍春庭
王启明
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.)
Xuzhou Jiufa Construction Machinery Co Ltd
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Xuzhou Jiufa Construction Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CN201620704781.7U priority Critical patent/CN205892576U/en
Application granted granted Critical
Publication of CN205892576U publication Critical patent/CN205892576U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a fast set up tower crane's jib loading boom turns over a device sets up the inside of the folding arm of folding arm and back in the front, turn over a pneumatic cylinder (82) including jib loading boom link mechanism (81) and jib loading boom, it is anterior at the folding arm in back that the jib loading boom turns over a pneumatic cylinder setting, jib loading boom link mechanism includes articulated the installation inside preceding folding arm of one end of preceding folding arm connecting rod (811) and back folding arm link assembly (812), preceding folding arm connecting rod, the folding arm link assembly in back is the triangle -shaped structure, and including upper link point, well pin joint and lower link point, upper link point is connected with the other end of preceding folding arm connecting rod is articulated, and well pin joint is articulated to be installed at the folding arm upper surface in back, and lower link point connects with the piston end hinge that the jib loading boom turned over a pneumatic cylinder in succession. This fast set up tower crane's jib loading boom turns over a device can realize that the folding link mechanism of jib loading boom occupies less space, specially adapted fast set up tower crane.

Description

The crane arm apparatus for turning of type fast erecting tower crane
Technical field
The utility model is related to a kind of jib for tower crane apparatus for turning, specifically a kind of can fast erecting movement The crane arm apparatus for turning of formula derrick crane, belongs to hoisting machinery equipment technology field.
Background technology
Derrick crane abbreviation tower crane, also known as tower crane, is the revolving crane that swing arm is contained in towering tower body top, tower Heavy-duty machine working space is big, is mainly used in the installation of vertically and horizontally conveying and the building element of material in housing construction.
The derrick crane majority that China's building trade is used at present is that on top slewing, lifting guide support adding connects high fixation Formula structure, realizes the revolution of crane arm and counter-jib by being arranged on the turntable of tower body upper end, by jacking tower body and add base Plinth section is realized raising step by step, and this traditional derrick crane is applied to heavy construction or skyscraper, exists for construction floor height The some crowded occasion that the lower building of 20 to 40m is built or Adjacent Buildings are more, according to this traditional tower lifting Machine is not only wasted one's talent on a petty job, cost increases, and applies and often seem clumsy, there is erection and removes inconvenience, delays architectural engineering The defect such as construction period;According to crane truck, then not only energy resource consumption is big, high cost, and its lifting altitude is often not Enough.
Turn in consideration of it, having turntable in prior art and being arranged on tower body lower end, tower body and foldable being arranged on of crane arm Lower rotary structure, straighforward operation lifting on platform and luffing and revolution can type fast erecting tower crane, this existing Can type fast erecting tower crane crane arm by the double-decker of horizontality be folded into during Rotating fields typically by Advancing jack coordinates multi-link structure, and because crane arm apparatus for turning is generally arranged inside crane arm, structure is more complicated Multi-link structure takies more space, expansion and receives more complicated, and multi-link structure is easily because of foozle and accumulative installation Error causes structure to there is internal stress, and then makes support strength impacted.
Content of the invention
For the problems referred to above, the utility model provides a kind of crane arm apparatus for turning of type fast erecting tower crane, energy Enough crane arm folding linkage of realizing while ensureing tower body crane arm support strength take less space, particularly suitable Type fast erecting tower crane in lower building building or the crowded occasion in place.
For achieving the above object, the crane arm apparatus for turning of this type fast erecting tower crane be arranged on before fold arm and after Fold the inside of arm, turn down hydraulic cylinder including crane arm linkage and crane arm;
Described crane arm turnover hydraulic cylinder folds arm front portion after being arranged on, and its cylinder body bottom is articulated and connected in rear folding Arm, crane arm turnover hydraulic cylinder passes through fluid pressure line and control valve group is connected with hydraulic power unit;
Described crane arm linkage includes front folding arm link and rear folding arm link assembly, front folding arm link One end is hinged to be installed on front folding inside arm;Folding arm link assembly afterwards is triangular structure, including upper link point, middle pin joint And lower link point, fold the upper link point of arm link assembly afterwards and the front other end folding arm link is articulated and connected, fold arm afterwards The middle pin joint of link assembly folds arm upper surface after being hingedly mounted on, and folds lower link point and the crane arm of arm link assembly afterwards The piston end of turnover hydraulic cylinder is articulated and connected.
As further improvement of the utility model scheme, the hinged turnover end face of described rear folding arm and front folding arm It is provided with sensor, sensor is electrically connected with the controller of type fast erecting tower crane electric control gear.
As further improvement of the utility model scheme, described crane arm turnover hydraulic cylinder is set to two pieces.
As further improvement of the utility model scheme, described crane arm linkage is set to two sets, and two sets are risen Weighing arm linkage is symmetrical set in the front inside folding arm and rear folding arm.
Compared with prior art, the crane arm linkage of the crane arm apparatus for turning of this type fast erecting tower crane by Fold arm link and rear folding arm link assembly before including, and rear fold arm link assembly be triangular structure, hinge in inclusion Contact, middle pin joint and lower link point, articulated position is positioned at approximately the same plane by therefore the three of triangular structure pin joint Interior, ensure that each pin joint be mutually located stability, after driving during crane arm turns down the piston end retraction of hydraulic cylinder Fold arm link assembly triangle mechanism entirety around the rotation of middle pin joint, the upper link point simultaneously folding arm link assembly afterwards drives The front arm link that folds pulls the front arm that folds to open along the front arm that folds with the rear pin joint rotation turnover folding arm, and by rationally setting The size putting triangle can be realized taking less space, be particularly well-suited to lower building building or the crowded occasion in place fast Speed sets up derrick crane.
Brief description
Fig. 1 is structural representation during type fast erecting tower crane its fully unfolded position;
Fig. 2 is structural representation during the partially unfolded state of type fast erecting tower crane;
Fig. 3 is structural representation during type fast erecting tower crane completely folded state;
Fig. 4 is the connection of tower body linkage and tower body apparatus for turning during type fast erecting tower crane its fully unfolded position Schematic diagram;
Fig. 5 is structural representation of the present utility model.
In figure: 1, base, 2, turntable, 3, lower tower body, 4, upper tower body, 41, lifting sub-arm, 5, tower body linkage, 51, Lower tower body connecting rod, 52, upper tower body connecting rod, 53, tower body rod hinge connection axle, 6, tower body apparatus for turning, 61, bottom hinge joint chair, 62, support Long connecting rod, 63, tower body turnover hydraulic cylinder, 7, mast installation, 71, mast, 72, conductor rope support bar, 8, crane arm apparatus for turning, 81st, crane arm linkage, 811, front folding arm link, 812, rear fold arm link assembly, 82, crane arm turnover hydraulic cylinder, 9th, counterweight, 91, entity counterweight, 92, water tank ballast.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described further (after being set up with type fast erecting tower crane below State description, described with the direction of stretching out of foldable hoisting arm after setting up for front).
As shown in figure 5, the crane arm apparatus for turning 8 of this type fast erecting tower crane is arranged on front folding arm and rear folding The inside of arm, turns down hydraulic cylinder 82 including crane arm linkage 81 and crane arm.
Crane arm turnover hydraulic cylinder 82 folds arm front portion after being arranged on, and its cylinder body bottom is articulated and connected in rear folding arm, rises Weighing arm turnover hydraulic cylinder 82 passes through fluid pressure line and control valve group is connected with hydraulic power unit.
Crane arm linkage 81 includes front folding arm link 811 and rear folding arm link assembly 812, front folding arm link 811 one end is hinged to be installed on front folding inside arm;Afterwards fold arm link assembly 812 be triangular structure, including upper link point, Middle pin joint and lower link point, the upper link point folding arm link assembly 812 afterwards is hinged with the other end of front folding arm link 811 Connect, the middle pin joint of folding arm link assembly 812 folds arm upper surface after being hingedly mounted on afterwards, fold arm link assembly afterwards The piston end that 812 lower link point turns down hydraulic cylinder 82 with crane arm is articulated and connected.
Type fast erecting tower crane in the transition state of folding completely, as shown in figure 3, tower body, foldable hoisting arm and Mast is all the level of state, and tower body turnover hydraulic cylinder 63 is in the state of being entirely retracted to, and crane arm turnover hydraulic cylinder 82 is in completely Stretch out state, front folding arm, afterwards fold arm, upper tower body 4 successively folding storage on lower tower body 3, now turntable 2 rear end, Xia Ta Dismountable wheel group on body 3 is installed and supported base 1 makes whole machine vacantly be easy to transition;Transition is to operating position, first Releasing can draw telescopic outrigger in, and then operation can draw telescopic outrigger in makes it stretch out and consolidate to be supported in ground, will be dismountable Wheel group can carry out after removing launching operation.
As shown in Fig. 2 launching to first pass through the piston end retraction that control valve group controls crane arm turnover hydraulic cylinder 82 during operation, Fold arm link assembly 812 triangle mechanism entirety after driving during retraction around the rotation of middle pin joint, fold arm simultaneously afterwards The upper link point of link assembly 812 drives the front arm link 811 that folds to pull the front arm that folds to fold arm and the rear hinge folding arm along front Contact rotates turnover and opens, and current folding arm and rear folding between arm are in control crane arm turnover hydraulic pressure after the sharp angle setting The piston end of cylinder 82 suspends retraction;Then control tower body to turn down hydraulic cylinder 63 by control valve group to stretch out, tower body during stretching out The piston end of turnover hydraulic cylinder 63 promotes tower body rod hinge connection axle 53 to drive on lower tower body connecting rod 51 and upper tower body connecting rod 52 top pressure Tower body 4, so that tower body 4 is routed up along the hinged central rotation of upper tower body 4 and lower tower body 3, turn down continuing of hydraulic cylinder 63 with tower body Continuous stretch out, and under the supporting role of conductor rope support bar 72 and mast, haulage cable is gradually exceptionally straight, tower body 3 under auxiliary pulling, By the upper tower body of a section supporting between long connecting rod 62, the support supreme tower body 4 of long connecting rod 62 upper link point and the pin joint of lower tower body 3 4th, four companies that the virtual link between lower tower body 3, the lower link point of lower tower body 3 and support long connecting rod 62 lower link point collectively constitutes Linkage turns down in tower body and gradually deforms under the traction of hydraulic cylinder 63, when the support supreme tower body 4 of long connecting rod 62 upper link point One section and the interface point of lower tower body 3 between upper tower body 4 is along under the pin joint supreme tower body 4 of rotation of upper tower body 4 and lower tower body 3 End face fit with the upper surface of lower tower body 3 merging phase when, as shown in figure 4, quadric chain is deformed into rectangular triangle Three bar linkage structures of structure, lower tower body 3 gradually overturns in vertical state by horizontality and upper tower body 4 also overturns in vertically State;While tower body upset, roll over after the exceptionally straight rear tractive of haulage cable under the supporting role of conductor rope support bar 72 and mast Folded arm folds after making and folds arm before arm drives and integrally turn down expansion, when tower body upset is in vertical state after to fold arm then synchronous complete Become turnover to be the level of state, arm can be folded by the length adjusting tractive steel wire rope between mast and rear folding arm after realizing complete After becoming turnover, its front end tilts upwards slightly, and the rear folding arm of tilting not only can obtain more preferable load situation and permissible Arm is folded when folding storage turns down after preventing amplitude variation trolley from skidding off;Control crane arm turnover hydraulic cylinder finally by control valve group 82 piston end continues retraction makes front folding arm continue turnover and open along front folding arm and the rear pin joint rotation folding arm, up to The front rear end face folding arm is docked with the rear front end face folding arm and completes to fold the fully deployed of arm;As shown in figure 1, fast erecting After derrick crane is fully deployed, unloaded water tank ballast 92 is arranged on the rear portion of turntable 2 and carries out water filling, after completing water filling The lifting lifting can be turned round by remote control control turntable 2, lifted by crane winding plant drive suspension hook group, luffing device drive luffing Dolly moves forward and backward luffing.
When carrying out storage folding transition after completing work, first water tank ballast 92 is discharged water and is dismantled water tank ballast 92, Then the above-mentioned deployment step of reverse operating completes to fold, and retraction after finally installing dismountable wheel group can draw telescopic outrigger in And draw in and can carry out transition.
In order to prevent crane arm turnover hydraulic pressure after the hinged turnover end face of rear folding arm and front folding arm is fitted completely Cylinder 82 still stretches out, and in turn results in the damage that crane arm turns down hydraulic cylinder 82, as further improvement of the utility model scheme, The hinged turnover end face of described rear folding arm and front folding arm is provided with sensor, sensor and type fast erecting tower crane The controller electrical connection of electric control gear, when the numerical value of sensor feedback reaches the numerical value of setting, controller controls crane arm to turn over Folding hydraulic cylinder 82 stopping action pressurize, and then realize protection crane arm turnover hydraulic cylinder 82.
Cause danger to prevent from revealing because of crane arm turnover hydraulic cylinder 82 fault, change further as of the present utility model Enter scheme, described crane arm turnover hydraulic cylinder 82 is set to two pieces, and the setting that two pieces crane arm turns down hydraulic cylinder 82 not only may be used Reduce upset dynamics when being separately provided a crane arm turnover hydraulic cylinder 82, and two pieces crane arm turnover hydraulic cylinder 82 is simultaneously The probability that fault is revealed is extremely low, and so that wherein one crane arm is turned down hydraulic cylinder 82 and break down to reveal still does not affect upset receipts Receive.
In order to ensure crane arm turnover during stability, as further improvement of the utility model scheme, described Crane arm linkage 81 be set to two sets, two sets of crane arm linkages 81 are symmetrical set in front folding arm and rear folding The inside of folded arm.
The crane arm linkage 81 of the crane arm apparatus for turning of this type fast erecting tower crane folds due to before including Arm link 811 and rear folding arm link assembly 812, and rear fold arm link assembly 812 be triangular structure, hinged in inclusion Articulated position is positioned in approximately the same plane point, middle pin joint and lower link point, therefore the three of triangular structure pin joint, Ensure that each pin joint is mutually located stability, rolls over after driving during crane arm turns down the piston end retraction of hydraulic cylinder 82 The overall upper link point rotating around middle pin joint, folding arm link assembly 812 simultaneously afterwards of folded arm link assembly 812 triangle mechanism The front arm link 811 that folds is driven to pull the front arm that folds to open along the front arm that folds with the rear pin joint rotation turnover folding arm, and logical Size after rationally setting triangle can be realized taking less space, be particularly well-suited to lower building building or place is crowded The type fast erecting tower crane of occasion.

Claims (4)

1. the crane arm apparatus for turning (8) of a kind of type fast erecting tower crane, is arranged on and front folds the interior of arm and rear folding arm Portion, including crane arm linkage (81) and crane arm turnover hydraulic cylinder (82);It is characterized in that,
Described crane arm turnover hydraulic cylinder (82) folds arm front portion after being arranged on, and its cylinder body bottom is articulated and connected in rear folding Arm, crane arm turnover hydraulic cylinder (82) passes through fluid pressure line and control valve group is connected with hydraulic power unit;
Described crane arm linkage (81) includes front folding arm link (811) and rear folding arm link assembly (812), front folding One end of folded arm link (811) is hinged to be installed on front folding inside arm;Folding arm link assembly (812) afterwards is triangular structure, Including upper link point, middle pin joint and lower link point, fold the upper link point of arm link assembly (812) and front folding arm link afterwards (811) the other end is articulated and connected, and folds arm upper table after the middle pin joint of folding arm link assembly (812) is hingedly mounted on afterwards Face, the piston end that the lower link point folding arm link assembly (812) afterwards turns down hydraulic cylinder (82) with crane arm is articulated and connected.
2. the crane arm apparatus for turning of type fast erecting tower crane according to claim 1 is it is characterised in that described Fold arm afterwards and the hinged turnover end face of front folding arm is provided with sensor, sensor and the automatically controlled dress of type fast erecting tower crane The controller electrical connection put.
3. the crane arm apparatus for turning of type fast erecting tower crane according to claim 1 and 2 is it is characterised in that institute Crane arm turnover hydraulic cylinder (82) stated is set to two pieces.
4. the crane arm apparatus for turning of type fast erecting tower crane according to claim 1 and 2 is it is characterised in that institute The crane arm linkage (81) stated is set to two sets, and two sets of crane arm linkages (81) are symmetrical set in front folding arm With the rear inside folding arm.
CN201620704781.7U 2016-07-06 2016-07-06 Fast set up tower crane's jib loading boom turns over a device Expired - Fee Related CN205892576U (en)

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Application Number Priority Date Filing Date Title
CN201620704781.7U CN205892576U (en) 2016-07-06 2016-07-06 Fast set up tower crane's jib loading boom turns over a device

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Application Number Priority Date Filing Date Title
CN201620704781.7U CN205892576U (en) 2016-07-06 2016-07-06 Fast set up tower crane's jib loading boom turns over a device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107196238A (en) * 2017-06-16 2017-09-22 徐州市久发工程机械有限责任公司 A kind of portable stringing machine of fast erecting
CN109467016A (en) * 2018-12-29 2019-03-15 徐州重型机械有限公司 Crane

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107196238A (en) * 2017-06-16 2017-09-22 徐州市久发工程机械有限责任公司 A kind of portable stringing machine of fast erecting
CN107196238B (en) * 2017-06-16 2018-12-04 徐州市久发工程机械有限责任公司 A kind of fast erecting movable type stringing machine
CN109467016A (en) * 2018-12-29 2019-03-15 徐州重型机械有限公司 Crane

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170118

Termination date: 20210706