CN203820334U - Device for descending and disassembling arm through turning back of tower cane in air - Google Patents
Device for descending and disassembling arm through turning back of tower cane in air Download PDFInfo
- Publication number
- CN203820334U CN203820334U CN201420222892.5U CN201420222892U CN203820334U CN 203820334 U CN203820334 U CN 203820334U CN 201420222892 U CN201420222892 U CN 201420222892U CN 203820334 U CN203820334 U CN 203820334U
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- arm
- pulley
- leading sheave
- open
- crane arm
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Abstract
The utility model relates to a device for descending and dissembling an arm through turning back of a tower cane in air. The device consists of a hoisting pulley system and an arm disassembling pulley system, wherein the hoisting pulley system is formed in a manner that a coiling block is connected with a steel wire rope in a winding manner, the steel wire rope respectively bypasses a rope guide pulley A, a guide pulley B, a hoisting capacity limit guide pulley C, an amplitude changing pulley set, a hoisting pulley and the tail end of the steel wire rope is connected to the end part of a first joint of an arm frame, the arm disassembling pulley system is formed in a manner that the steel wire rope respectively bypasses a strut guide pulley set and an arm disassembling guide pulley D and the other end of the steel wire rope is connected to a wiring sleeve of a knob of a cargo boom. The two systems use a same steel wire to switch. When the steel wire rope is in the hoisting pulley system, the device is in a hoisting state, and when the steel wire rope is switched into the arm disassembling pulley system, the device is in an arm disassembling state. The device provided by the utility model solves the problem about disassembling of the cargo boom of the built-in tower crane for tower building operations. The device is reasonable in structure, simple and convenient to operate and fast in system replacing speed. When the device is switched into the arm disassembling pulley system, the crane boom is disassembled, the construction efficiency is greatly improved and the cost is saved.
Description
Technical field
The utility model relates to a kind of operating control of crane boom, particularly relates to a kind of tower crane arm of turning back in the air and tears arm assembly open.
Background technology
For the main body construction of the tubular construction such as large-scale chimney, cooling tower building, chimney, cooling tower various operations are around encircled in the center that generally tower body of tower crane is in the tubular constructions such as large-scale chimney, cooling tower.After the tubular construction completions such as chimney, cooling tower, tower body should fall in tubular construction and under elevator is auxiliary and dismantle section by section after crane arm dismounting.But the tower body of tower crane falls to causing obstruction but cannot carry out ground dismounting to crane arm because of tubular construction, crane arm is arranged on tower body and is suspended in the air, in not by accessory equipment situation, cannot remove, and dismantlement work poor stability, removal efficiency is low.Dismounting crane arm for this reason how can be quick, safe, easy becomes new problem.
Utility model content
The purpose of this utility model is to provide a kind of tower crane simple in structure, the jib that takes down a crane that can be quick, safe, easy arm of turning back in the air to tear arm assembly open.
The purpose of this utility model can realize.The utility model tower crane arm of turning back is in the air torn the jib that arm assembly comprises the crane arm root joint being arranged on tower body and crane arm the 3rd joint, crane arm second section and the crane arm first segment that are connected successively by crane arm root joint by each hinge connecting pin form open; The upper lifting mechanism of installing of crane arm root joint, the reel of lifting mechanism be intertwined and connected steel rope and the steel rope row's of walking around rope pulley A, leading sheave B, hoisting capacity restricted guidance pulley C, luffing assembly pulley, lifting pulley respectively, steel rope end is fixedly connected on the gin wheel system that jib first segment end forms; Also comprise by front tension bar one, front tension bar two, back stay, pulling-rod frame and connecting successively, front tension bar one front end winds up and is connected with crane arm second section, the pulling-rod frame other end is fixed on crane arm root joint rear end, the lower end of the two common hinged support of front tension bar and back stay is hinged on crane arm root joint front end section part hinge, and the lower end of the two common hinged strut of back stay and pulling-rod frame is hinged on the tie system that crane arm root joint center forms.The utility model tower crane arm of turning back is in the air torn arm assembly open and is characterised in that: described tower crane turn back in the air arm tear open arm assembly by steel rope, walk around respectively support leading sheave group and tear arm leading sheave D open and the steel rope other end be fixedly connected on the rope sling of leading sheave D position crane arm root joint, form tear arm pulley system open and described tie system forms jointly, described support leading sheave group is jointly hinged by bearing pin and front tension bar two, support and back stay three, described in tear arm leading sheave D open and be connected to crane arm root joint middle part above.
The utility model tower crane arm of turning back is in the air torn arm assembly open, wherein said arm pulley system and the shared steel rope of described gin wheel system torn open, described steel rope and support leading sheave group and tear arm leading sheave D open and constitute and tear arm pulley system open, described steel rope constitutes gin wheel system with row's rope pulley A, leading sheave B, hoisting capacity restricted guidance pulley C, luffing assembly pulley, lifting pulley.
The utility model tower crane arm of turning back is in the air torn arm assembly open, wherein said support leading sheave group is comprised of two pulleys, support leading sheave group has one around the rotary motion trace of hinge with support, support leading sheave group around hinge under described jib front end rotary state and tear open between arm leading sheave D and there is the path of motion that a straight-line distance increases gradually.
The utility model tower crane arm of turning back is in the air torn arm assembly difference from prior art open and is that the utility model tower crane arm of turning back tears arm assembly open by reel steel rope and the steel rope row's of the walking around rope pulley A respectively that is intertwined and connected in the air, leading sheave B, hoisting capacity restricted guidance pulley C, luffing assembly pulley, lifting pulley and steel rope end are connected to gin wheel system that jib first segment end forms and the other end being walked around respectively support leading sheave group and torn open arm leading sheave D and steel rope by steel rope is connected to the arm pulley system of tearing open forming on the rope sling of crane arm root joint and forms.Two systems are used same steel cable, and steel rope is changed in two systems, are the normal hoisting operation state of tower crane when steel rope is in gin wheel system, steel rope be transformed into while tearing arm pulley system open be crane arm tear arm operating condition open.The tower crane of the present utility model arm of turning back is in the air torn the dismounting difficult problem that arm assembly has solved the built-in jib for tower crane of tower cylinder class building operation open.The utility model is rational in infrastructure, is converted to the dismounting of carrying out Tower Crane Boom ' while tearing arm pulley system open, easy and simple to handle, and replacing velocity is fast each other for two systems, has improved greatly operating efficiency, has saved cost.
Below in conjunction with accompanying drawing, the tower crane of the present utility model arm of turning back is in the air torn open arm assembly and is described further.
Accompanying drawing explanation
Fig. 1 is that the utility model tower crane arm of turning back is in the air torn the structural representation of arm assembly open.
Fig. 2 is the structural representation of gin wheel system in Fig. 1.
Fig. 3 is that crane arm is torn the initial condition schematic diagram before arm in the air open.
Fig. 4 tears the structural representation of arm pulley system open in Fig. 3.
Fig. 5 tears arm working state schematic representation open in Fig. 3.
In figure: 1 crane arm first segment, 2 crane arm second sections, 3 crane arms the 3rd joint, 4 tie systems, 5 steel ropes, 6 crane arm root joints, 7 lifting mechanisms, 8 tower bodies, 9 suspension hooks, 10 amplitude variation trolleys, 11 hinges, 12 jib hinges, 1.1 row's rope pulley A, 1.2 leading sheave B, 1.3 hoisting capacity restricted guidance pulley C, 1.4 luffing assembly pulleys, 1.5 lifting pulley, 4.1 support leading sheave groups, 4.2 leading sheave D, 4.3 front tension bars one, 4.4 front tension bars two, 4.5 support, 4.6 back stay, 4.7 strut, 4.8 pulling-rod frame.
The specific embodiment
As shown in Figure 1, the utility model tower crane arm of turning back is in the air torn the jibs that arm assembly comprises the crane arm root joint 6 being arranged on tower body 8 and crane arms the 3rd joint 3, crane arm second section 2 and the crane arm first segment 1 that are connected successively by crane arm root joint 6 by each hinge connecting pin form open; On crane arm root joint 6, lifting mechanism 7 is installed, the reel 7.1 of lifting mechanism 7 is intertwined and connected, and the row of walking around rope pulley A1.1, leading sheave B1.2, hoisting capacity restricted guidance pulley C1.3, luffing assembly pulley 1.4, lifting pulley 1.5 and steel rope 5 ends are fixedly connected on the gin wheel system of jib first segment 1 end formation respectively for steel rope 5 and steel rope 5; Also comprise by front tension bar 1, front tension bar 2 4.4, back stay 4.6, pulling-rod frame 4.8 and connecting successively, front tension bar one 4.3 front ends wind up and are connected with crane arm second section 2, pulling-rod frame 4.8 other ends are fixed on crane arm root and save on 6 rear ends, the lower end of front tension bar 4.4 and back stay 4.6 the two common hinged support 4.5 is hinged on crane arm root and saves on 6 front end section part hinges 11, and back stay 4.6 is hinged on the lower end of pulling-rod frame 4.8 the two common hinged strut 4.7 tie system 4 that crane arm root saves 6 center formations.The utility model tower crane arm of turning back is in the air torn arm assembly open and by steel rope 5, is walked around respectively support leading sheave group (4.1) and tear arm leading sheave D4.2 open and steel rope 5 other ends are fixedly connected on leading sheave D(4.2) form on the rope sling of position crane arm root joint 6 tear arm pulley system open and tie system 4 forms jointly.Support leading sheave group 4.1 is jointly hinged by bearing pin and front tension bar 2 4.4, support 4.5 and back stay 4.6 threes.Tear arm leading sheave D4.2 open and be connected to crane arm root joint 6 medium position above.
As shown in Fig. 1, Fig. 3, Fig. 5, tear arm pulley system and gin wheel system open and share steel rope 5.
As shown in Figure 4, steel rope 5 and support leading sheave group 4.1 and tear arm leading sheave D4.2 open and constitute and tear arm pulley system open.Support leading sheave group 4.1 is comprised of two pulleys.
As shown in Figure 2, steel rope 5 constitutes gin wheel system with row's rope pulley A1.1, leading sheave B1.2, hoisting capacity restricted guidance pulley C1.3, luffing assembly pulley 1.4, lifting pulley 1.5.
As shown in Fig. 3, Fig. 5, support leading sheave group 4.1 has one around the rotary motion trace of hinge 12 with support 4.5.Support leading sheave group 4.1 is when hinge 12 rotates to jib front end, and support leading sheave group 4.1 and the straight-line distance of tearing open between arm leading sheave D4.2 increase gradually.
The tower crane of the present utility model arm of turning back is in the air torn arm assembly open and has been realized the work that hoists of crane arm and torn open two kinds of mode of operations of arm by the steel rope 5 of a set of lifting mechanism 7, two kinds of work are worn around mode and are realized respectively by steel rope adjustment, easy and simple to handle, quick.
Mode of operation of the present utility model, tear arm readiness open and tear arm process open as follows:
Referring to Fig. 1, mode of operation: steel rope 5 one end are wrapped on reel 7.1, reel 7.1 be connected with lifting mechanism 7 and reel 7.1 and lifting mechanism 7 fixed placement on jib root joint 6, the other end of steel rope is fixedly connected on the end of jib first segment successively after the row's of walking around rope pulley A1.1, leading sheave B1.2, lifting limit amount C1.3, luffing assembly pulley 1.4 and lifting pulley 1.5, and reel 7.1 is realized suspension hook 9 with withdrawing rope and done oscilaltion campaign;
Referring to Fig. 3, tear arm readiness open: amplitude variation trolley 10 is moved to crane arm root and save 6 places and fix with the connecting-rod bolt on crane arm root joint 6.Suspension hook 9 is taken and is put on workplatform, then remove the fixed end of jib first segment place steel rope 5.Reel 7.1 rope closings, make steel rope 5 exit successively lifting pulley 1.5, luffing assembly pulley 1.4, hoisting capacity restricted guidance pulley C1.3, leading sheave B1.2 and row's rope pulley A1.1, until steel rope 5 is retracted to reel 7.1;
Referring to Fig. 5, tear arm process open: reel 7.1 is put rope, steel rope 5 is worn successively after support leading sheave group 4.1 and leading sheave D4.2 steel rope 5 fag ends is fixed on the rope sling of leading sheave D4.2 position.Reel 7.1 rope closings are not removed the bearing pin between back stay 4.6 and strut 4.7 and pulling-rod frame 4.8 after back stay 4.6 stresses, reel 7.1 is put rope, support leading sheave group 4.1, front tension bar 1 and front tension bar 2 4.4 turn to lower edge with jib around hinge 12, jib first segment 1, jib second section 2, jib the 3rd joint 3 is done as a wholely around jib hinge 11, to be rotated down, thereby realize jib, freely hang down, and then complete dismounting.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (3)
1. the tower crane arm of turning back is in the air torn an arm assembly open, comprise the crane arm root joint (6) being arranged on tower body (8) and the crane arm being connected successively by crane arm root joint (6) by each hinge connecting pin the 3rd joint (3), crane arm second section (2) and the jib of crane arm first segment (1) formation; The upper lifting mechanism (7) of installing of crane arm root joint (6), the reel (7.1) of lifting mechanism (7) steel rope (5) and steel rope (5) row's of the walking around rope pulley A(1.1 respectively that is intertwined and connected), leading sheave B(1.2), hoisting capacity restricted guidance pulley C(1.3), luffing assembly pulley (1.4), lifting pulley (1.5), steel rope (5) end is fixedly connected on the gin wheel system that jib first segment (1) end forms; also comprise by front tension bar one (4.3), front tension bar two (4.4), back stay (4.6), pulling-rod frame (4.8) connects successively, front tension bar one (4.3) front end winds up and is connected with crane arm second section (2), pulling-rod frame (4.8) other end is fixed on crane arm root joint (6) rear end, the lower end of the two common hinged support (4.5) of front tension bar (4.4) and back stay (4.6) is hinged on crane arm root joint (6) front end section part hinge (11), the lower end of the two common hinged strut (4.7) of back stay (4.6) and pulling-rod frame (4.8) is hinged on the tie system (4) that crane arm root joint (6) center forms, it is characterized in that: the described tower crane arm of turning back is in the air torn arm assembly open and walked around respectively support leading sheave group (4.1) and torn open arm leading sheave D(4.2 by steel rope (5)) and steel rope 5 other ends be fixedly connected on leading sheave D(4.2) form on the rope sling of position crane arm root joint (6) tear arm pulley system open and described tie system 4 forms jointly, described support leading sheave group (4.1) is by bearing pin and front tension bar two (4.4), support (4.5) and back stay (4.6) three are jointly hinged, the described arm leading sheave D(4.2 that tears open) be connected to crane arm root joint (6) medium position above.
2. the tower crane according to claim 1 arm of turning back is in the air torn arm assembly open, it is characterized in that: described in tear arm pulley system and described gin wheel system open and share steel rope (5), described steel rope (5) and support leading sheave group (4.1) and tear arm leading sheave D(4.2 open) constitute and tear arm pulley system open, described steel rope (5) with arrange rope pulley A(1.1), leading sheave B(1.2), hoisting capacity restricted guidance pulley C(1.3), luffing assembly pulley (1.4), lifting pulley (1.5) constitute gin wheel system.
3. the tower crane according to claim 1 and 2 arm of turning back is in the air torn arm assembly open, it is characterized in that: described support leading sheave group (4.1) is comprised of two pulleys, support leading sheave group (4.1) has one around the rotary motion trace of hinge (12) with support (4.5), support leading sheave group (4.1) around hinge (12) under described jib front end rotary state and tear arm leading sheave D(4.2 open) between there is the path of motion that a straight-line distance increases gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420222892.5U CN203820334U (en) | 2014-05-04 | 2014-05-04 | Device for descending and disassembling arm through turning back of tower cane in air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420222892.5U CN203820334U (en) | 2014-05-04 | 2014-05-04 | Device for descending and disassembling arm through turning back of tower cane in air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203820334U true CN203820334U (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420222892.5U Expired - Fee Related CN203820334U (en) | 2014-05-04 | 2014-05-04 | Device for descending and disassembling arm through turning back of tower cane in air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203820334U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293316A (en) * | 2015-11-25 | 2016-02-03 | 镇海建设集团有限公司 | Windproof tower crane |
| CN105366573A (en) * | 2015-10-30 | 2016-03-02 | 徐州建机工程机械有限公司 | Arrangement form of load lifting limiter of cantilever tower crane |
| CN105712218A (en) * | 2016-03-31 | 2016-06-29 | 中国建筑第八工程局有限公司 | Construction method for changing lifting arm of heavy horizontal-arm tower crane at high altitude |
| CN106144912A (en) * | 2016-07-22 | 2016-11-23 | 太原科技大学 | Arm method and apparatus is torn in ultra-large type tower crane high-altitude open |
| WO2018115271A1 (en) * | 2016-12-22 | 2018-06-28 | Liebherr-Werk Biberach Gmbh | Crane having a collapsible jib |
| CN109607406A (en) * | 2019-01-09 | 2019-04-12 | 中国人民解放军海军航空大学 | One kind point hangs Superimposed hoisting apparatus and hoisting method |
| CN109704210A (en) * | 2019-01-22 | 2019-05-03 | 中建四局第五建筑工程有限公司 | A kind of high-altitude tower crane large arm fracture dip method for dismounting |
| WO2020052931A1 (en) * | 2018-09-13 | 2020-03-19 | Liebherr-Werk Biberach Gmbh | Crane |
-
2014
- 2014-05-04 CN CN201420222892.5U patent/CN203820334U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366573A (en) * | 2015-10-30 | 2016-03-02 | 徐州建机工程机械有限公司 | Arrangement form of load lifting limiter of cantilever tower crane |
| CN105293316A (en) * | 2015-11-25 | 2016-02-03 | 镇海建设集团有限公司 | Windproof tower crane |
| CN105712218A (en) * | 2016-03-31 | 2016-06-29 | 中国建筑第八工程局有限公司 | Construction method for changing lifting arm of heavy horizontal-arm tower crane at high altitude |
| CN106144912A (en) * | 2016-07-22 | 2016-11-23 | 太原科技大学 | Arm method and apparatus is torn in ultra-large type tower crane high-altitude open |
| CN110088034A (en) * | 2016-12-22 | 2019-08-02 | 利勃海尔比伯拉赫股份有限公司 | Crane including foldable crane arm |
| WO2018115271A1 (en) * | 2016-12-22 | 2018-06-28 | Liebherr-Werk Biberach Gmbh | Crane having a collapsible jib |
| US11040860B2 (en) | 2016-12-22 | 2021-06-22 | Liebherr-Werk Biberach Gmbh | Crane having a collapsible jib |
| CN112888652A (en) * | 2018-09-13 | 2021-06-01 | 利勃海尔工厂比伯拉赫股份有限公司 | Crane with a movable crane |
| WO2020052931A1 (en) * | 2018-09-13 | 2020-03-19 | Liebherr-Werk Biberach Gmbh | Crane |
| US12012313B2 (en) | 2018-09-13 | 2024-06-18 | Liebherr-Werk Biberach Gmbh | Crane |
| CN109607406A (en) * | 2019-01-09 | 2019-04-12 | 中国人民解放军海军航空大学 | One kind point hangs Superimposed hoisting apparatus and hoisting method |
| CN109607406B (en) * | 2019-01-09 | 2024-03-29 | 中国人民解放军海军航空大学 | Separate-hanging stacked lifting device and lifting method |
| CN109704210A (en) * | 2019-01-22 | 2019-05-03 | 中建四局第五建筑工程有限公司 | A kind of high-altitude tower crane large arm fracture dip method for dismounting |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 065000 No. 61, Golden Road, Langfang, Hebei Patentee after: INSTITUTE OF BUILDING MECHANIZATION/CHINA ACADEMY OF BUILDING RESEARCH Patentee after: CABR CONSTRUCTION MACHINERY TECHNOLOGY Co.,Ltd. Address before: 065000 No. 61, Golden Road, Langfang, Hebei Patentee before: INSTITUTE OF BUILDING MECHANIZATION OF CHINA ACADEMY OF BUILDING RESEARCH Patentee before: CABR CONSTRUCTION MACHINERY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201215 Address after: 065000 Chuangye Road, development zone, Langfang City, Hebei Province Patentee after: CABR CONSTRUCTION MACHINERY TECHNOLOGY Co.,Ltd. Patentee after: BEIJING CONSTRUCTION MECHANIZATION RESEARCH INSTITUTE CO.,LTD. Address before: 065000 No. 61, Golden Road, Langfang, Hebei Patentee before: INSTITUTE OF BUILDING MECHANIZATION/CHINA ACADEMY OF BUILDING RESEARCH Patentee before: CABR CONSTRUCTION MACHINERY TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 |