CN104528542A - Double load-bearing trolley of tower crane - Google Patents
Double load-bearing trolley of tower crane Download PDFInfo
- Publication number
- CN104528542A CN104528542A CN201410838973.2A CN201410838973A CN104528542A CN 104528542 A CN104528542 A CN 104528542A CN 201410838973 A CN201410838973 A CN 201410838973A CN 104528542 A CN104528542 A CN 104528542A
- Authority
- CN
- China
- Prior art keywords
- trolley
- dolly
- suspension hook
- tower crane
- guide wheel
- 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.)
- Pending
Links
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
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
Abstract
The invention discloses a double load-bearing trolley of a tower crane. The double load-bearing cart of the tower crane comprises a rear trolley, a front trolley, an auxiliary lifting hook and a main lifting hook; the rear trolley comprises a rear trolley frame, a guide wheel and a pulley block; the front trolley comprises a front trolley frame, a guide wheel and a pulley block; the rear trolley and the front trolley run on a cargo boom rail through the guide wheel and is fixed or separated through a trolley connecting shaft; the auxiliary lifting hook is connected with the pulley block of the rear trolley through a wire rope; the main lifting hook is connected with the pulley block of the front trolley through a wire rope; the auxiliary lifting hook and the main lifting hook are fixed or separated through a lifting hook connecting plate. The load-bearing trolley is designed to double trolleys, the two trolleys are connected with each other, the double trolley is used when four-times lifting weight is used, the overall width of the double trolley is relatively large, and the intertwining phenomenon of the wire rope can be effectively avoided. A single trolley is used when the two-times lifting weight is used, the other trolley is fixed on the root of the cargo boom, the overall weight of the load-bearing trolley is reduced, and the lifting performance of the entire machine can be greatly improved.
Description
Technical field
The present invention relates to a kind of tower crane, specifically the two loading trolley of a kind of tower crane.
Background technology
As shown in Figure 1, the tower crane of current China is designed with single loading trolley usually, loading trolley 2 to hoist the main carriers of weight for tower crane, loading trolley 2 is transferred on crane arm 1, can recur on weighing arm 1 and move, loading trolley 2 is connected with steel rope with the suspension hook 3 that hoists, and plays the effect converting the amplitude that hoists.Generally can convert 2 multiplying powers, 4 multiplying power steel ropes use, what have can accomplish conversion 6 multiplying power.Multiplying power and the number of share of stock of steel rope between loading trolley and suspension hook, 2 multiplying powers and being connected by 2 strand steel wire ropes between loading trolley with suspension hook.
In existing design, loading trolley 2 is single crab, use 4 multiplying power hang carry time due to 4 steel ropes almost parallel, be easy to occur that steel rope disturbs phenomenon, and 2,4 multiplying power loading trolleys, suspension hook 3 do not change, 2 multiplying power load carrying behaviours are weakened severely.Its shortcoming is as follows:
1. single loading trolley pulley limited width, easily occurs that steel rope disturbs phenomenon in use, increases little pulley sheave width and is faced with again the weight of increase dolly and causes the lifting performance of complete machine to decline;
2. when suspension hook 2 magnification transformable is 4 multiplying power, auxiliary hook is still retained in below loading trolley, takies the load-carrying ability of tower machine.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides the two loading trolley of a kind of tower crane, prevent steel rope from disturbing phenomenon, do not reduce the lifting performance of hoisting crane simultaneously.
To achieve these goals, the two loading trolley of a kind of tower crane of the present invention, comprises rear dolly, front dolly, secondary suspension hook and main suspension hook; Described rear dolly comprises rear trolley frame, guide wheel and assembly pulley; Described front dolly comprises front trolley frame, guide wheel and assembly pulley; Described rear dolly and described front dolly are run on crane arm track by guide wheel, and are fixed by dolly adapter shaft or be separated; Described secondary suspension hook is connected by the assembly pulley of steel rope with rear dolly; Described main suspension hook is connected by the assembly pulley of steel rope with front dolly; Fix by suspension hook connecting panel or be separated between described secondary suspension hook and described main suspension hook.
Further, when using 2 multiplying power suspension hook, described rear trolley frame is connected by fixed pin shaft with cargo boom root.When using 2 multiplying power suspension hook, loading trolley overall weight is alleviated, considerably increases the lifting performance of complete machine.
Further, described rear trolley frame rear portion is connected with maintenance hanging basket.Rear trolley frame arranges maintenance hanging basket, is convenient to operating personnel and it is safeguarded.
Further, described front trolley frame sidepiece is provided with broken rope protector and rope tightening device.The harm that broken rope protector can prevent wire cable rupture from causing, rope tightening device can regulate the tensioning degree of steel rope.
Further, anticollision device is provided with between described rear dolly and described front dolly.Can play buffer action, before and after preventing, a dolly collides mutually, produces and damages.
Loading trolley is designed to double trolley, is connected to each other between dolly, use double trolley when use 4 multiplying power lift heavy, double trolley overall width is comparatively large, effectively avoids steel rope to disturb phenomenon.Use single crab when use 2 multiplying power lift heavy, another one dolly is fixed on cargo boom root, and loading trolley overall weight alleviates, and considerably increases the lifting performance of complete machine.Therefore the present invention has the following advantages: effectively prevent 4 multiplying power suspension hook hoist ropes from disturbing; The lifting performance of lifting hook 2 multiplying power.
Accompanying drawing explanation
Fig. 1 is prior art list loading trolley structural representation;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the two loading trolley front view of the present invention;
Fig. 4 is the two loading trolley birds-eye view of the present invention;
Fig. 5 is double-hung schematic diagram of the present invention;
Fig. 6 is that the present invention uses 2 multiplying power suspension hook constitutions diagram;
In figure: 1, crane arm, 2, loading trolley, 3, suspension hook, 4, rear dolly; 41, rear trolley frame, 42, assembly pulley, 43, guide wheel; 44, fixed pin shaft, 45, maintenance hanging basket, 5, front dolly; 51, front trolley frame, 52, broken rope protector, 53, rope tightening device; 6, secondary suspension hook, 7, main suspension hook, 8, anticollision device; 9, dolly adapter shaft, 10, suspension hook connecting panel, 11, gib head.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 2, the two loading trolley of tower crane of the present invention, comprises rear dolly 4, front dolly 5, secondary suspension hook 6 and main suspension hook 7; As shown in Figure 3, before rear dolly 4 comprises rear trolley frame 41, guide wheel 43 and assembly pulley 42, dolly 5 comprises front trolley frame 51, guide wheel 43 and assembly pulley 42; Rear dolly 4 is run by guide wheel 43 with described front dolly 5 on crane arm 1 track, and the fixing or separation by dolly adapter shaft 9; As shown in Figure 5, secondary suspension hook 6 is connected by the assembly pulley 42 of steel rope with rear dolly 4; Main suspension hook 7 is connected by the assembly pulley 42 of steel rope with front dolly 5; Fixing or the separation by suspension hook connecting panel 10 between secondary suspension hook 6 and described main suspension hook 7;
In addition, on said structure basis, this practical property can also have following improvement, and as shown in Figure 3 and Figure 6, when using 2 multiplying power suspension hook, rear trolley frame 41 is connected by fixed pin shaft 44 with cargo boom root.When using 2 multiplying power suspension hook, loading trolley overall weight is alleviated, considerably increases the lifting performance of complete machine.As shown in Figure 4, be connected with maintenance hanging basket 45 at rear trolley frame 41 rear portion, be convenient to operating personnel and it is safeguarded.Front trolley frame 51 sidepiece is provided with broken rope protector 52 and rope tightening device 53, the harm that broken rope protector can prevent wire cable rupture from causing, and rope tightening device can regulate the tensioning degree of steel rope.As described in Figure 3, be provided with anticollision device 8, can play buffer action between rear dolly 4 and described front dolly 5, before and after preventing, a dolly collides mutually, produces and damages.
Double trolley using method of the present invention is as follows: when use 4 multiplying power steel rope hoisting heavy, rear trolley frame 41 uses fixed pin shaft 44 to be connected with front trolley frame 51, and after two dollies connect, one coexists on crane arm 1 track and runs.Main suspension hook 7 and secondary suspension hook 6 are connected to one and use, and lift weight with eave tile 11, and dolly outermost pulley width is large, effectively prevents disorder cable phenomenon.
When use 2 multiplying power suspension hook, rear trolley frame 41 is connected with cargo boom root, and secondary suspension hook 6 is connected with rear trolley frame 41, uses front trolley frame 51 and main suspension hook 7 hoisting heavy, to reach the object of expendable weight.
Claims (5)
1. the two loading trolley of tower crane, is characterized in that, comprise rear dolly (4), front dolly (5), secondary suspension hook (6) and main suspension hook (7);
Described rear dolly (4) comprises rear trolley frame (41), guide wheel (43) and assembly pulley (42);
Described front dolly (5) comprises front trolley frame (51), guide wheel (43) and assembly pulley (42);
Described rear dolly (4) and described front dolly (5) are run on crane arm (1) track by guide wheel (43), and the fixing or separation by dolly adapter shaft (9);
Described secondary suspension hook (6) is connected with the assembly pulley (42) of rear dolly (4) by steel rope;
Described main suspension hook (7) is connected with the assembly pulley (42) of front dolly (5) by steel rope;
Fixing or the separation by suspension hook connecting panel (10) between described secondary suspension hook (6) and described main suspension hook (7).
2. the two loading trolley of a kind of tower crane according to claim 1, is characterized in that, when using 2 multiplying power suspension hook, described rear trolley frame (41) is connected by fixed pin shaft (44) with cargo boom root.
3. the two loading trolley of a kind of tower crane according to claim 1 and 2, it is characterized in that, described rear trolley frame (41) rear portion is connected with maintenance hanging basket (45).
4. the two loading trolley of a kind of tower crane according to claim 1 and 2, it is characterized in that, described front trolley frame (51) sidepiece is provided with broken rope protector (52) and rope tightening device (53).
5. the two loading trolley of a kind of tower crane according to claim 1 and 2, is characterized in that, be provided with anticollision device (8) between described rear dolly (4) and described front dolly (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838973.2A CN104528542A (en) | 2014-12-30 | 2014-12-30 | Double load-bearing trolley of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838973.2A CN104528542A (en) | 2014-12-30 | 2014-12-30 | Double load-bearing trolley of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104528542A true CN104528542A (en) | 2015-04-22 |
Family
ID=52844241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410838973.2A Pending CN104528542A (en) | 2014-12-30 | 2014-12-30 | Double load-bearing trolley of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104528542A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753761A (en) * | 2021-08-09 | 2021-12-07 | 浙江省建设工程机械集团有限公司 | Tower crane with main and auxiliary hoisting systems |
| WO2023088474A1 (en) * | 2021-11-22 | 2023-05-25 | 徐州建机工程机械有限公司 | Two-stage tolerance type lifting hook having four pulley sets |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3402824A (en) * | 1966-07-25 | 1968-09-24 | Pacific Coast Eng Co | Convertible cargo handling system |
| FR2293394A1 (en) * | 1974-12-06 | 1976-07-02 | Tax Hans | HOIST TROLLEY CRANE |
| DE2222591B2 (en) * | 1971-05-12 | 1976-11-04 | Potain S.A., Chevilly Larue, VaI de Marne (Frankreich) | CABLE TROLLEY FOR A JIB CRANE OR OVERLAY CRANE |
| CN102219157A (en) * | 2011-06-03 | 2011-10-19 | 长沙中联重工科技发展股份有限公司 | Loading trolley-based converting rope winding system with variable multiplying power |
| CN202131018U (en) * | 2011-06-17 | 2012-02-01 | 常州常矿起重机械有限公司 | Trolley of crane |
| CN103072905A (en) * | 2011-06-03 | 2013-05-01 | 中联重科股份有限公司 | Variable-multiplying power conversion rope winding system based on load trolley |
| CN203767887U (en) * | 2014-04-10 | 2014-08-13 | 浙江德清华杨科技有限公司 | Detachable rope warding-off device for load trolley |
| CN204434122U (en) * | 2014-12-30 | 2015-07-01 | 徐州建机工程机械有限公司 | The two loading trolley of tower crane |
-
2014
- 2014-12-30 CN CN201410838973.2A patent/CN104528542A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3402824A (en) * | 1966-07-25 | 1968-09-24 | Pacific Coast Eng Co | Convertible cargo handling system |
| DE2222591B2 (en) * | 1971-05-12 | 1976-11-04 | Potain S.A., Chevilly Larue, VaI de Marne (Frankreich) | CABLE TROLLEY FOR A JIB CRANE OR OVERLAY CRANE |
| FR2293394A1 (en) * | 1974-12-06 | 1976-07-02 | Tax Hans | HOIST TROLLEY CRANE |
| CN102219157A (en) * | 2011-06-03 | 2011-10-19 | 长沙中联重工科技发展股份有限公司 | Loading trolley-based converting rope winding system with variable multiplying power |
| CN103072905A (en) * | 2011-06-03 | 2013-05-01 | 中联重科股份有限公司 | Variable-multiplying power conversion rope winding system based on load trolley |
| CN202131018U (en) * | 2011-06-17 | 2012-02-01 | 常州常矿起重机械有限公司 | Trolley of crane |
| CN203767887U (en) * | 2014-04-10 | 2014-08-13 | 浙江德清华杨科技有限公司 | Detachable rope warding-off device for load trolley |
| CN204434122U (en) * | 2014-12-30 | 2015-07-01 | 徐州建机工程机械有限公司 | The two loading trolley of tower crane |
Non-Patent Citations (1)
| Title |
|---|
| 《水利水电工程施工安全技术规程标准应用指南》编写组: "《水利水电工程施工安全技术规程标准应用指南》", 31 January 2009, 中国水利水电出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753761A (en) * | 2021-08-09 | 2021-12-07 | 浙江省建设工程机械集团有限公司 | Tower crane with main and auxiliary hoisting systems |
| WO2023088474A1 (en) * | 2021-11-22 | 2023-05-25 | 徐州建机工程机械有限公司 | Two-stage tolerance type lifting hook having four pulley sets |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |