CN202864761U - Tetrahedron truss of balance arm of flathead tower crane - Google Patents
Tetrahedron truss of balance arm of flathead tower crane Download PDFInfo
- Publication number
- CN202864761U CN202864761U CN 201220556400 CN201220556400U CN202864761U CN 202864761 U CN202864761 U CN 202864761U CN 201220556400 CN201220556400 CN 201220556400 CN 201220556400 U CN201220556400 U CN 201220556400U CN 202864761 U CN202864761 U CN 202864761U
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- CN
- China
- Prior art keywords
- arm
- tetrahedron
- tower crane
- balance arm
- truss
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a tetrahedron truss of a balance arm of a flathead tower crane. The tetrahedron truss comprises a tripod (3), a support rod (4) and pull rods (5), wherein the tripod (3) is welded on a second section arm (2) of the balance arm (1) and is supported by four support rods (4). A hole on the tripod is connected with a hole on a first section of the balance arm through a pin shaft. The second section arm is connected through two pull rods (5). An inner part of a body cavity of the tetrahedron is used for mounting a hoisting mechanism (6). The two pull rods are detachable, so that the mounting and maintenance of the mechanism are convenient. The structure is novel in design, convenient to mount and reasonable in stress.
Description
Technical field
The utility model relates to a kind of tetrahedron truss of balance arm of flat-top tower crane.
Background technology
Connection mode between the balance arm of flat-top tower crane two joint arms has a variety of, such as the triangular truss structure of equilibrium arm first segment arm employing as crane arm, and can be without the equilibrium arm pull bar.And the second section arm need adopt the tetrahedron truss structure, and connection mode between the two needs particular design.
Summary of the invention
For addressing this problem, we design the special tetrahedron truss structure of a kind of detouchable.
This tetrahedron truss, comprise spider 3, strut 4 and pull bar 5, wherein, at the second section arm 2 of equilibrium arm 1 spider 3 that is welded, with four strut 4 supporting tripods, hole is connected by bearing pin with hole on the equilibrium arm first segment on the spider, and the second section arm links to each other by two pull bars 5.
Wherein, described pull bar is detachable.Be convenient to the installation, maintenance of mechanism.
Be used for installing lifting mechanism 6 in the tetrahedron body cavity.
This structure design is novel, easy for installation, reasonable stress.
Description of drawings
Fig. 1 is tetrahedron truss front view,
Fig. 2 is tetrahedron girder three-dimensional figure.
The specific embodiment
This tetrahedron truss, comprise spider 3, strut 4 and pull bar 5, wherein, at the second section arm 2 of equilibrium arm 1 spider 3 that is welded, with four strut 4 supporting tripods, hole is connected by bearing pin with hole on the equilibrium arm first segment on the spider, and the second section arm links to each other by two pull bars 5.Spider is used for connecting first and second joint arm, is connected with the second section arm by the detouchable pull bar, is connected with the first segment arm by bearing pin.By strut spider is fixed on the second section arm.
Two pull bars are detachable, are convenient to installing mechanism, and the maintenance of mechanism.
Be used for installing lifting mechanism 6 in the tetrahedron body cavity.Two pull bars are detouchables, are convenient to the installation, maintenance of mechanism.
This structure design is novel, easy for installation, reasonable stress.
Claims (2)
1. the tetrahedron truss of a balance arm of flat-top tower crane, comprise spider (3), strut (4) and pull bar (5), it is characterized in that, at the second section arm (2) of equilibrium arm (1) spider (3) that is welded, with four struts (4) supporting tripod, hole is connected by bearing pin with hole on the equilibrium arm first segment on the spider, and the second section arm links to each other by two pull bars (5).
2. the tetrahedron truss of a kind of balance arm of flat-top tower crane according to claim 1 is characterized in that, described pull bar is detachable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220556400 CN202864761U (en) | 2012-10-26 | 2012-10-26 | Tetrahedron truss of balance arm of flathead tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220556400 CN202864761U (en) | 2012-10-26 | 2012-10-26 | Tetrahedron truss of balance arm of flathead tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202864761U true CN202864761U (en) | 2013-04-10 |
Family
ID=48031501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220556400 Expired - Fee Related CN202864761U (en) | 2012-10-26 | 2012-10-26 | Tetrahedron truss of balance arm of flathead tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202864761U (en) |
-
2012
- 2012-10-26 CN CN 201220556400 patent/CN202864761U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20191026 |