CN203269403U - Low-level slewing portal luffing-jib crane - Google Patents
Low-level slewing portal luffing-jib crane Download PDFInfo
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- CN203269403U CN203269403U CN 201320283747 CN201320283747U CN203269403U CN 203269403 U CN203269403 U CN 203269403U CN 201320283747 CN201320283747 CN 201320283747 CN 201320283747 U CN201320283747 U CN 201320283747U CN 203269403 U CN203269403 U CN 203269403U
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- tower body
- crane
- arm
- luffing
- portal
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Abstract
The utility model relates to a low-level slewing portal luffing-jib crane, comprising a cargo boom, a balance arm and a tower body. The low-level slewing portal luffing-jib crane is characterized in that the tower body is of a door type structure, the top of the tower body is fixedly connected with the cargo boom and the balance boom, and the bottom of the tower body is arranged above a swing mechanism.
Description
Technical field
The utility model relates to the flat boom crane of a kind of lower turnstile shape tower body formula, relates to specifically a kind of complete machine structure pattern of using portal-framed structure to be used as the hoisting crane tower body.
Background technology
Existing flat arm hangs mostly and forms (as shown in Figure 1) by bottom tower body and top revolution two parts.Bottom tower body 1 ' be all generally truss structure (as shown in Figure 2), it comprises main chord, stull and diagonal brace; Upper rotary part by crane arm 3 ', equilibrium arm 5 ', swing type mechanism 4 ', trailer coupling, crane carriage 2 ' etc. form, crane arm and equilibrium arm are arranged in tower body both sides.The handling that flat arm hangs article is jointly to complete by trailer coupling, lifting mechanism and swing type mechanism, namely move around in crane arm one side by trailer coupling tractive crane carriage and realize the horizontal linear luffing, realize the vertical handling of article by lifting mechanism, realize the handling in the lower 360 ° of scopes of any amplitude of article by swing type mechanism.But compare with the speed of straight line luffing, the speed of revolutions of flat jib crane is relatively slow, when the article that require handling are transported to equilibrium arm one side from the front end of crane arm---namely during 180 ° of luffings, cause the turning period waste more because speed of revolutions is low, make the Efficiency Decreasing of hoisting crane.
And in production reality, the flat boom crane lift cargo of fixed type is more frequent from the condition of service that a side of crane arm is transported to equilibrium arm one side, therefore, satisfying under the prerequisite of operating needs, development improves the novel complete machine structure of the flat boom crane service efficiency of fixed type, and is imperative.
Summary of the invention
The purpose of this utility model provides just a kind of and can satisfy lift cargo and directly pass from crane arm one side the flat boom crane of lower turnstile posture that a shape tower body is transported to equilibrium arm one side for existing weak point in above-mentioned prior art.
The purpose of this utility model can realize by following technique measures:
The flat boom crane of lower turnstile posture of the present utility model comprises crane arm, equilibrium arm and tower body, and described tower body is door type structure, and the top of tower body and crane arm and equilibrium arm are fixed together, and the bottom of tower body is arranged on above swing type mechanism; Can directly move to the equilibrium arm end by door shape tower body along crane arm during crane carriage handling article; Door shape tower body and above part are done 360 ° of full circle swingings by swing type mechanism.
More specifically, the utility model is that the swing type mechanism of flat arm tower machine is moved to the tower body lower end by the tower body upper end, and making tower body into portal framed structure by traditional truss structure, door shape tower body has the upper load that enough intensity, rigidity and stability are born the tower machine.Because having two faces, door shape tower body there is no stull and the diagonal brace of traditional truss-like tower body, crane carriage just can directly arrive equilibrium arm one side by tower body smoothly, thereby realized that by single straight-line motion traditional flat arm tower crane cathetus adds rotating teamwork, has improved work efficiency to greatest extent.Because this novel flat arm tower type crane structure has 360 ° of full circle swinging functions, can realize handling to article by above-mentioned action in 360 ° of scopes that crane arm covers.
The beneficial effects of the utility model are as follows:
1, tower body simple structure, rational in infrastructure, stressed clear and definite, because crane carriage can directly pass from tower body, saved the swing type mechanism action, improves the work efficiency of complete machine when satisfying lift cargo.
2, owing to having adopted this new structure, the tower machine need not 360 ° of annular space luffings, the working space of hoisting crane are required little, have effectively improved the convenience of hoisting crane when work in narrow space.
3, can realize according to actual needs 360 ° of comprehensive revolutions due to door frame and above part, on the basis of function, integration capability increases satisfying traditional flat arm tower machine and use thereby make this type.
Description of drawings
Fig. 1 is the constructional drawing of prior art.
The tower body of Fig. 2 prior art.
Fig. 3 is complete machine structure schematic diagram of the present utility model.
Fig. 4 is the structural representation of gantry type tower body of the present utility model.
The specific embodiment
The utility model is further described below with reference to embodiment (accompanying drawing):
As shown in Fig. 3,4, the flat boom crane of lower turnstile posture of the present utility model comprises crane arm 1, equilibrium arm 2 and tower body 3, described tower body 3 is door type structure, and the top of tower body 3 and crane arm 1 and equilibrium arm 2 are fixed together, and the bottom of tower body 3 is arranged on above swing type mechanism; Can directly move to equilibrium arm 2 ends by door shape tower body along crane arm 1 during crane carriage 4 handling article; Door shape tower body and above part are done 360 ° of full circle swingings by swing type mechanism 5.
Claims (1)
1. the flat boom crane of lower turnstile posture, comprise crane arm, equilibrium arm and tower body, and it is characterized in that: described tower body is door type structure, and the top of tower body and crane arm and equilibrium arm are fixed together, and the bottom of tower body is arranged on above swing type mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320283747 CN203269403U (en) | 2013-05-23 | 2013-05-23 | Low-level slewing portal luffing-jib crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320283747 CN203269403U (en) | 2013-05-23 | 2013-05-23 | Low-level slewing portal luffing-jib crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203269403U true CN203269403U (en) | 2013-11-06 |
Family
ID=49499855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320283747 Expired - Fee Related CN203269403U (en) | 2013-05-23 | 2013-05-23 | Low-level slewing portal luffing-jib crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203269403U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174074A (en) * | 2015-09-14 | 2015-12-23 | 沈阳建筑大学 | Tower crane balance arm structure adapting to stress state |
| CN107761572A (en) * | 2017-11-24 | 2018-03-06 | 中交路桥华南工程有限公司 | The installation method of hanging cable of stay cable system and its system |
-
2013
- 2013-05-23 CN CN 201320283747 patent/CN203269403U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174074A (en) * | 2015-09-14 | 2015-12-23 | 沈阳建筑大学 | Tower crane balance arm structure adapting to stress state |
| CN107761572A (en) * | 2017-11-24 | 2018-03-06 | 中交路桥华南工程有限公司 | The installation method of hanging cable of stay cable system and its system |
| CN107761572B (en) * | 2017-11-24 | 2024-02-23 | 中交路桥华南工程有限公司 | Stay cable hanging system and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20160523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |