CN204434130U - Lifting mechanism of tower crane maintenance crane - Google Patents
Lifting mechanism of tower crane maintenance crane Download PDFInfo
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- CN204434130U CN204434130U CN201420871606.8U CN201420871606U CN204434130U CN 204434130 U CN204434130 U CN 204434130U CN 201420871606 U CN201420871606 U CN 201420871606U CN 204434130 U CN204434130 U CN 204434130U
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- lifting mechanism
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Abstract
The utility model discloses a kind of lifting mechanism of tower crane maintenance crane, belong to tower crane maintenance technique field.Comprise slewing tower (1), base section (4), transition segment (5) and arm (6); Described slewing tower (1) is connected with described transition segment (5) by bearing connection (2); Installed fixing after described transition segment (5) and described base section (4) are firmly connected by bearing support (3); Described slewing tower (1) installs jack I (7) after being connected with arm (6) by bearing pin between.This lifting mechanism of tower crane maintenance crane significantly improves the processing safety of maintenance crane and property easy to use in the lifting mechanism maintenance of tower crane, provide processing safety and convenient and swift property, save construction cost, significantly improve work efficiency, structure is simple simultaneously, be convenient to dismounting and transport, space availability ratio is high.
Description
Technical field
The utility model relates to a kind of lifting mechanism of tower crane maintenance crane, belongs to tower crane maintenance technique field.
Background technology
Lifting mechanism of tower crane is in long-time use procedure, due to various factors impact, lifting motor easily breaks down, when needs to its safeguard particularly change motor time, be in aloft work due to lifting motor heavier-weight, need auxiliary device to carry out dismounting and change.Lifting altitude is higher, the maintaining difficulty of tower machine is larger, and the dismounting particularly for lifting mechanism motor is more difficult with replacing.
The maintenance crane of tower crane can provide convenient for the care and maintenance of tower crane.In existing design, as shown in Figure 1, be the version of the more maintenance crane of current application, this kind of maintenance crane is also known as right angle arm, and its structure is primarily of cant cantilever 1-1, cantilever beam 1-2 and assembly pulley 1-3 three parts composition.When right angle arm is installed and used, first cant cantilever 1-1 is fastened on equilibrium arm structure or lifting mechanism underframe, then cant cantilever 1-1 is entered in cantilever beam 1-2 grafting and be connected and fixed.
The maintenance crane version of above-mentioned existing structure is simple, and form is single, cannot realize the luffing of lift heavy, and maintenance crane is relative with the installation site of lifting mechanism fixing, lift by crane commonality and space availability ratio low, interchangeability is poor; Revolution faying face between cantilever beam 1-2 and cant cantilever 1-1 adopts sliding type, revolution difficulty, and revolution positioning precision is low, and turn round mode weak effect and lack actv. lubrication, the easy corrosion of faying face causes turning round; Simultaneously when removing and installing lifting motor, cantilever beam 1-2 cannot effective location, has certain revolution inertia, there is potential safety hazard, increase repair and replacement difficulty during cantilever beam 1-2 lift heavy.Therefore the maintenance crane lifting of this routine directly affects safety and the convenience of maintenance use, causes work efficiency low.
Utility model content
For above-mentioned prior art Problems existing, the utility model provides a kind of lifting mechanism of tower crane maintenance crane, realizes the luffing of lift heavy, is convenient to revolution, significantly improves the processing safety of maintenance crane and property easy to use, significantly increase work efficiency.
To achieve these goals, this lifting mechanism of tower crane maintenance crane comprises slewing tower, base section, transition segment and arm;
Described slewing tower is connected with described transition segment by bearing connection;
Installed fixing after described transition segment is firmly connected with described base section by bearing support;
Described slewing tower installs jack I after being connected with arm by bearing pin between.
Further, described bearing connection passes through Bolt to position.
Further, described jack I is 3 tons of jacks.
Further, described slewing tower distance between center line suspension hook horizontal throw is less than or equal to 1.8 meters;
Described arm horizon elevation angle is greater than 10 degree.
Further, the jack II that arm end hangs is 2 tons of jacks.
Compared with prior art, the beneficial effect of this lifting mechanism of tower crane maintenance crane is:
1, easy luffing.This maintenance crane can draw arm to realize luffing by jack is outstanding, can lift by crane the weight within the scope of certain amplitude.Therefore this maintenance crane does not need to be strict with and to control on installation site, can avoid the interference of maintenance crane and other framing members to a certain extent.Especially a maintenance crane is taken into account to the occasion of two covers or more mechanism, the advantage of this maintenance crane is fairly obvious.
2, structure is excellent.The arm end of this maintenance crane and slewing tower by hinge, to be bordering on front end place stable by jack and slewing tower upper end tractive holding structure.This structure, compared with gusset supporting construction, substantially improves the force-bearing situation of structure, and therefore for the maintenance crane of identical tonnage, the arm of this maintenance crane can adopt the section bar more saving material.Meanwhile, because jack has more elasticity compared with gusset, to when instantaneous load and Condition of Sudden Unloading, there is good resiliency.
3, revolution is convenient.Safe operation can be ensured while slewing tower revolution positioning precision is high.Almost achieve lifting weight being carried out to freely safety in this maintenance crane maintenance coverage so in design, greatly expand the range of use of this maintenance crane, make this maintenance crane obtain abundant actv. and utilize.
This lifting mechanism of tower crane maintenance crane significantly improves the processing safety of maintenance crane and property easy to use in the lifting mechanism maintenance of tower crane, provide processing safety and convenient and swift property, save construction cost, significantly improve work efficiency, structure is simple simultaneously, be convenient to dismounting and transport, space availability ratio is high.
Accompanying drawing explanation
Fig. 1 is maintenance crane structural representation in prior art;
Fig. 2 is the utility model structural representation;
In figure: 1-1, cant cantilever, 1-2, cantilever beam, 1-3, assembly pulley, 1, slewing tower, 2, bearing connection, 3, bearing support, 4, base section, 5, transition segment, 6, arm, 7, jack I, 8, jack II.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 2, this lifting mechanism of tower crane maintenance crane comprises slewing tower 1, base section 4, transition segment 5 and arm 6.
The structural principle of this lifting mechanism of tower crane maintenance crane is:
Described slewing tower 1 is connected with described transition segment 5 by bearing connection 2; Realize the gyroscopic effects of slewing tower 1.
Installed fixing after described transition segment 5 and described base section 4 are firmly connected by bearing support 3; Be fixed on lifting mechanism underframe by bearing support 3.
Described slewing tower 1 installs jack I 7 after being connected with arm 6 by bearing pin between.The luffing effect of arm 6 is realized by adjustment jack I 7.
Further, described bearing connection 2 passes through Bolt to position.When slewing tower 1 is turned back to assigned address, by the dead bearing connection 2 of bolt lock, makes it maintain static, and then locked location is carried out to slewing tower 1.
Further, described jack I 7 is 3 tons of jacks.Realize the luffing effect of arm 6.
Further, described slewing tower 1 distance between center line suspension hook horizontal throw is less than or equal to 1.8 meters; Described arm 6 horizon elevation angle is greater than 10 degree.Effectively ensure that arm 6 work efficiency and security and stability.
Further, the jack II 8 that arm 6 end hangs is 2 tons of jacks.Work is carried out with upper ground surface winch or more than 2t jack by assembly pulley with 2t when lift heavy hoists.
In sum, this lifting mechanism of tower crane maintenance crane significantly improves the processing safety of maintenance crane and property easy to use in the lifting mechanism maintenance of tower crane, provide processing safety and convenient and swift property, save construction cost, significantly improve work efficiency, structure is simple simultaneously, and be convenient to dismounting and transport, space availability ratio is high.
Claims (5)
1. a lifting mechanism of tower crane maintenance crane, is characterized in that,
Comprise slewing tower (1), base section (4), transition segment (5) and arm (6);
Described slewing tower (1) is connected with described transition segment (5) by bearing connection (2);
Installed fixing after described transition segment (5) and described base section (4) are firmly connected by bearing support (3);
Described slewing tower (1) installs jack I (7) after being connected with arm (6) by bearing pin between.
2. a kind of lifting mechanism of tower crane maintenance crane according to claim 1, is characterized in that,
Described bearing connection (2) passes through Bolt to position.
3. a kind of lifting mechanism of tower crane maintenance crane according to claim 1, is characterized in that,
Described jack I (7) is 3 tons of jacks.
4. a kind of lifting mechanism of tower crane maintenance crane according to claim 1, is characterized in that,
Described slewing tower (1) distance between center line suspension hook horizontal throw is less than or equal to 1.8 meters;
Described arm (6) horizon elevation angle is greater than 10 degree.
5. a kind of lifting mechanism of tower crane maintenance crane according to claim 1, is characterized in that,
The jack II (8) that arm (6) end hangs is 2 tons of jacks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871606.8U CN204434130U (en) | 2014-12-31 | 2014-12-31 | Lifting mechanism of tower crane maintenance crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871606.8U CN204434130U (en) | 2014-12-31 | 2014-12-31 | Lifting mechanism of tower crane maintenance crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204434130U true CN204434130U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420871606.8U Active CN204434130U (en) | 2014-12-31 | 2014-12-31 | Lifting mechanism of tower crane maintenance crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN204434130U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055344A (en) * | 2017-02-28 | 2017-08-18 | 南通庞源机械工程有限公司 | One kind maintenance tower crane jacking pumping plant hanging method |
| CN111807235A (en) * | 2020-03-05 | 2020-10-23 | 中国华冶科工集团有限公司 | Tower crane luffing trolley motor replacing device and replacing method |
-
2014
- 2014-12-31 CN CN201420871606.8U patent/CN204434130U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055344A (en) * | 2017-02-28 | 2017-08-18 | 南通庞源机械工程有限公司 | One kind maintenance tower crane jacking pumping plant hanging method |
| CN111807235A (en) * | 2020-03-05 | 2020-10-23 | 中国华冶科工集团有限公司 | Tower crane luffing trolley motor replacing device and replacing method |
| CN111807235B (en) * | 2020-03-05 | 2022-04-15 | 中国华冶科工集团有限公司 | Tower crane luffing trolley motor replacing device and replacing method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |