CN202508799U - Crane and balance arm thereof - Google Patents
Crane and balance arm thereof Download PDFInfo
- Publication number
- CN202508799U CN202508799U CN2012201385296U CN201220138529U CN202508799U CN 202508799 U CN202508799 U CN 202508799U CN 2012201385296 U CN2012201385296 U CN 2012201385296U CN 201220138529 U CN201220138529 U CN 201220138529U CN 202508799 U CN202508799 U CN 202508799U
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- arm
- pull bar
- arm joint
- equilibrium
- joint
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Abstract
The utility model provides a crane and a balance arm of the crane. The balance arm comprises a first arm joint, a second arm joint, a first pull rod and a second pull rod, wherein the second arm joint is directly or indirectly detachably connected with the first arm joint; the first end of the first pull rod is pivotally connected with the first arm joint; the first end of the second pull rod is pivotally connected with the second arm joint; and the second end of the first pull rod and the second end of the second pull rod are detachably connected. According to the crane and the balance arm of the crane, disclosed by the utility model, the first pull rod on the first arm joint and the second pull rod on the second arm joint are matched so that the installation and the detachment are convenient, the detachment workload is reduced and the efficiency is improved.
Description
Technical field
The utility model relates to the hoisting crane field, more specifically, relates to a kind of hoisting crane and equilibrium arm thereof.
Background technology
As shown in Figure 1, the equilibrium arm of hoisting crane comprises in the prior art: the first arm joint 10, second arm joint 20 and clump weight 30.Second arm joint 20 removably is connected with the first arm joint 10, and clump weight 30 is arranged on the first arm joint 10.Equilibrium arm of the prior art also comprises pull bar 90, and first end of pull bar 90 is connected with the first arm joint 10, and its second end is connected with second arm joint 20.
Fig. 2 shows the decomposing schematic representation when equilibrium arm is in disassembly status in the prior art.As shown in Figure 2, when equilibrium arm is installed, need each parts is installed one by one, need again during dismounting each parts is split one by one.Like this, not only time-consuming but also require great effort, and installation effectiveness is not high.In addition, split back part surface paint and be prone to broken, thereby cause getting rusty.
The utility model content
The utility model aims to provide a kind of hoisting crane and equilibrium arm thereof, with the equilibrium arm installing/dismounting inconvenience that solves prior art, the problem that efficient is not high.
For solving the problems of the technologies described above, according to first aspect of the utility model, a kind of equilibrium arm of hoisting crane is provided, comprising: the first arm joint; Second arm joint removably is connected with the first arm joint directly or indirectly; First pull bar, first end of first pull bar is connected with the first arm joint pivotly; Second pull bar, first end of second pull bar is connected with second arm joint pivotly; Second end of first pull bar removably is connected with second end of second pull bar.
Further, the first arm joint is provided with the second end bonded assembly connecting portion that is used for first pull bar.
Further, first pull bar is connected through attaching parts with second pull bar.
Further, connecting portion is provided with the connecting bore that matches with attaching parts.
Further, connecting portion is a lug.
Further, attaching parts is a bearing pin.
Further, equilibrium arm also comprises strut, and an end of strut is arranged on the first arm joint pivotly.
Further, equilibrium arm also comprises clump weight, and clump weight is arranged on the first arm joint.
Further, be to connect indirectly between the first arm joint and second arm joint, equilibrium arm also comprises the 3rd arm joint that is connected between the first arm joint and second arm joint.
Second aspect according to the utility model provides a kind of hoisting crane, comprises equilibrium arm, and this equilibrium arm is above-mentioned equilibrium arm.
The utility model adopts first pull bar that is arranged on the first arm joint and the mode that second pull bar that is arranged on second arm joint matches, and has both made things convenient for Assembly &Disassembly, has reduced the dismantlement work amount again, has improved efficient.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 has schematically shown the structural representation of the equilibrium arm of hoisting crane in the prior art;
Fig. 2 has schematically shown the scheme drawing when Fig. 1 is in disassembly status;
Fig. 3 has schematically shown the structural representation of the equilibrium arm of the hoisting crane in the utility model;
Fig. 4 has schematically shown the scheme drawing of second arm joint in the utility model;
Fig. 5 has schematically shown the scheme drawing of the first arm joint in the utility model; And
Fig. 6 has schematically shown the A portion enlarged drawing of Fig. 5.
The specific embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As an aspect of the utility model, a kind of equilibrium arm of hoisting crane is provided.Like Fig. 3-shown in Figure 6, the equilibrium arm in the utility model comprises: the first arm joint 10; Second arm joint 20 removably is connected with the first arm joint 10 directly or indirectly; First end of first pull bar, 40, the first pull bars 40 is connected with the first arm joint 10 pivotly; First end of second pull bar, 50, the second pull bars 50 is connected with second arm joint 20 pivotly; Second end of first pull bar 40 removably is connected with second end of second pull bar 50.Preferably, first pull bar 40 is connected through attaching parts 80 with second pull bar 50.Preferably, attaching parts 80 is bearing pins.Preferably, equilibrium arm also comprises clump weight 30, and it is arranged on the first arm joint 10.Need to prove that equilibrium arm can also comprise other arm joint except that the first arm joint 10 and second arm joint 20.It is understandable that, in a not shown embodiment, be to connect indirectly between the first arm joint 10 and second arm joint 20, and equilibrium arm also comprises the 3rd arm joint that is connected between the first arm joint 10 and second arm joint 20.
Dismounting time, can the first arm be saved 10 and second arm and save 20 junction and take apart, attaching parts 80, the first pull bars 40 of taking first pull bar, 40 second end connecting portions 70 then apart become state shown in Figure 5 by state shown in Figure 3; Second pull bar 50 then freely hangs down into state shown in Figure 4, can the first arm be saved 10 and second arm joint 20 then and take apart.During dismounting, only need dismounting to connect the bearing pin of first pull bar 40 and second pull bar 50 and is connected the first arm joint and bearing pin that second arm saves, the dismantlement work amount is original half.When installing, only need be with second end butt joint of second end and second pull bar 50 of first pull bar 40, and be fixed up and get final product.Therefore, Assembly &Disassembly is all very convenient, has improved work efficiency.
Preferably, the first arm joint 10 is provided with the second end bonded assembly connecting portion 70 that is used for first pull bar 40.Preferably, connecting portion 70 is provided with the connecting bore that matches with attaching parts 80.Preferably, connecting portion 70 is lugs.Please refer to Fig. 5, when dismounting, first pull bar 40 rotates to level of approximation and position, and corresponding with the position of connecting portion 70.At this moment, the attaching parts 80 that is used to connect first pull bar 40 and second pull bar 50 that removes capable of using couples together first pull bar 40 with connecting portion 70.Like this, both make things convenient for transportation, and do not worried again in transportation the paint of pull bar is broken, also do not worried the problem of rustiness that causes because paint breaks.In addition, after pull bar of the prior art removes, also need repack and transport, not only time-consuming but also require great effort.By contrast, the pull bar in the utility model need not repack and transport, and has time saving and energy saving characteristics.
As a preferred embodiment, equilibrium arm also comprises strut 60, and an end of strut 60 is arranged on the first arm joint 10 pivotly.Please refer to Fig. 3, when installing, strut 60 capable of using supports first pull bar 40, so that dock with second pull bar 50, thereby has further improved the comfort feature of operation.After installing, can strut 60 be horizontally rotated the upper surface of the first arm joint 10, and be placed on the first arm joint 10.
Another aspect as the utility model provides a kind of hoisting crane, comprises equilibrium arm, and this equilibrium arm is the equilibrium arm among above-mentioned each embodiment.Preferably, this hoisting crane is a tower crane.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. the equilibrium arm of a hoisting crane is characterized in that, comprising:
The first arm joint (10);
Second arm joint (20) removably is connected with said the first arm joint (10) directly or indirectly;
First pull bar (40), first end of said first pull bar (40) save (10) with said the first arm and are connected pivotly;
Second pull bar (50), first end of said second pull bar (50) save (20) with said second arm and are connected pivotly;
Second end of said first pull bar (40) removably is connected with second end of said second pull bar (50).
2. equilibrium arm according to claim 1 is characterized in that, said the first arm joint (10) is provided with the second end bonded assembly connecting portion (70) that is used for said first pull bar (40).
3. equilibrium arm according to claim 2 is characterized in that, said first pull bar (40) is connected through attaching parts (80) with said second pull bar (50).
4. equilibrium arm according to claim 3 is characterized in that, said connecting portion (70) is provided with the connecting bore that matches with said attaching parts (80).
5. according to each described equilibrium arm among the claim 2-4, it is characterized in that said connecting portion (70) is a lug.
6. according to claim 3 or 4 described equilibrium arms, it is characterized in that said attaching parts (80) is a bearing pin.
7. according to each described equilibrium arm among the claim 1-4, it is characterized in that said equilibrium arm also comprises strut (60), an end of said strut (60) is arranged on the said the first arm joint (10) pivotly.
8. according to each described equilibrium arm among the claim 1-4, it is characterized in that said equilibrium arm also comprises clump weight (30), said clump weight (30) is arranged on the said the first arm joint (10).
9. according to each described equilibrium arm among the claim 1-4; It is characterized in that; Be to connect indirectly between said the first arm joint (10) and said second arm joint (20), said equilibrium arm also comprises the 3rd arm joint that is connected between said the first arm joint (10) and said second arm joint (20).
10. a hoisting crane comprises equilibrium arm, it is characterized in that, said equilibrium arm is each described equilibrium arm among the claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201385296U CN202508799U (en) | 2012-04-01 | 2012-04-01 | Crane and balance arm thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201385296U CN202508799U (en) | 2012-04-01 | 2012-04-01 | Crane and balance arm thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202508799U true CN202508799U (en) | 2012-10-31 |
Family
ID=47061297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201385296U Expired - Lifetime CN202508799U (en) | 2012-04-01 | 2012-04-01 | Crane and balance arm thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202508799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539023A (en) * | 2013-10-29 | 2014-01-29 | 中联重科股份有限公司 | Structure and method for mounting balance arm and pull rod with tower head as well as tower crane |
-
2012
- 2012-04-01 CN CN2012201385296U patent/CN202508799U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539023A (en) * | 2013-10-29 | 2014-01-29 | 中联重科股份有限公司 | Structure and method for mounting balance arm and pull rod with tower head as well as tower crane |
| CN103539023B (en) * | 2013-10-29 | 2015-10-28 | 中联重科股份有限公司 | The mounting structure of equilibrium arm and pull bar and tower head, installation method and tower crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |