CN203582333U - Triangular-truss-type continuous variable cross-section chord crane boom - Google Patents
Triangular-truss-type continuous variable cross-section chord crane boom Download PDFInfo
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- CN203582333U CN203582333U CN201320689559.0U CN201320689559U CN203582333U CN 203582333 U CN203582333 U CN 203582333U CN 201320689559 U CN201320689559 U CN 201320689559U CN 203582333 U CN203582333 U CN 203582333U
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- continuous variable
- variable cross
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- truss
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000011218 segmentation Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000009432 framing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model provides a triangular-truss-type continuous variable cross-section chord crane boom, and relates to cranes for ship and ocean engineering. The triangular-truss-type continuous variable cross-section chord crane boom is used for solving the technical problems that a conventional four-chord truss-type crane is large and heavy in body and poor in stability and has few functions. The triangular-truss-type continuous variable cross-section chord crane boom is characterized in that a triangular-truss-type structure is formed by two top chords, one lower chord and a plurality of diagonal web members, the cross section of the triangular-truss-type structure is in the shape of an inverted triangle formed by using the diagonal web members among the two top chords and the one lower chord, and the diagonal web members are triangular among the top chords and the lower chord; the axial direction of the crane boom is in linear type, and a boom frame is of a continuous variable cross-section structure in a length range; the top chords are cylindrical steel pipes, and the lower chord is a special-shaped beam formed by welding of steel plates. The triangular-truss-type continuous variable cross-section chord crane boom is used for an ocean crane and has the advantages of simple structure, stability, reliability and multiple functions, and is convenient to manufacture.
Description
Technical field
The utility model relates to boats and ships ocean engineering hoisting crane, particularly the truss-like crane arm of hoisting crane.
Background technology
Along with the develop rapidly of the world today, higher in the lifting altitude that meets hoisting crane, play that liter weight is larger, when operation amplitude more extensively requires, the lightweight of crane structure and structural stability become the major issue of current urgent need solution.Truss structure, with the exsertile advantage of its mechanical property, is applied in Crane Jib Structure design more and more widely.
Traditional truss-like crane arm is four chord member structures, and chord member is conventional circle or square-section, and crane arm integral body mostly is sectional type variable section structure.There is crane arm poor stability, volume is large, structure is heavy, the shortcoming of function singleness.
Utility model content
The purpose of this utility model is intended to overcome the shortcoming of prior art, and a kind of English truss formula continuous variable cross section chord member crane arm is provided, and solves the large heaviness of traditional four chord member truss-like crane arm body, poor stability, technical matters that function is few.
The utility model is achieved through the following technical solutions:
A kind of English truss formula continuous variable cross section chord member crane arm, it is characterized in that: described crane arm forms English truss formula structure by two top booms, a lower boom and some diagonal web members, its cross-sectional plane is the del forming with diagonal web member between two top booms and a lower boom, and diagonal web member is triangle between top boom and lower boom; Described crane arm is axially linear pattern, and in jib length range, is continuous variable cross section structure.
Described top boom is steel cylindrical tube.
Described lower boom is comprised of track steel plate, arch-shaped steel plate and reinforcing plate, arch-shaped steel plate two ends respectively with two track Plate Weldings, track steel plate can be used as walking cucurbit orbit, arch-shaped steel plate top is welded with reinforcing plate.
Described crane arm can be divided into root section, end segments and interlude, with bolts between segmentation.
The utility model compared with prior art, because crane arm adopts English truss formula continuous variable cross section abnormity chord member structure, easily manufactured, lightweight, and good stability, stock utilization are high, and area exposed to the wind is little, can adapt to severe marine environment.Because lower boom adopts profiled beam structure, and can be used as walking cucurbit track, efficiently solve traditional crane arm poor stability, volume is large, structure is heavy, function singleness, transportation are installed difficult problem.The utility model, for marine crane, has advantage simple in structure, easy to make, reliable and stable, multi-functional.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model (front view);
Fig. 2 is the A-A section-drawing of Fig. 1;
Fig. 3 is the section drawing of lower boom.
Below in conjunction with accompanying drawing, the utility model is further described.
The specific embodiment
As shown in Figure 1, 2, 3, a kind of English truss formula continuous variable cross section chord member crane arm, by two top booms 1, lower boom 2 and some diagonal web members 3, form English truss formula structure, its cross-sectional plane is the del forming with diagonal web member 3 between two top booms 1 and a lower boom 2, and diagonal web member 3 is also triangle between top boom 1 and lower boom 2; Described crane arm is axially linear pattern, and is continuous variable cross section structure in jib length range, and form is simple, easy to make, and material use is abundant.
Described top boom 1 is steel cylindrical tube, and steel pipe type top boom 1 is identical at moment of inertia, the radius of turn of two major axes orientations, has guaranteed the lateral stability of single chord member.
Described lower boom 2 is comprised of track steel plate 21, arch-shaped steel plate 22 and reinforcing plate 23, and weld with two blocks of track steel plates 21 respectively at arch-shaped steel plate 22 two ends, and track steel plate 21 is provided with the orbit of walking cucurbit 4, and arch-shaped steel plate 22 tops are welded with reinforcing plate 23.Lower boom 2 can double as the orbit of walking cucurbit, without configuring additional track again.
Described crane arm can be divided into root section, end segments and interlude, with bolts between segmentation, is convenient to transportation, Assembly &Disassembly.Root is connected with turntable by bearing pin, can adopt steel plate to replace web system near root, has strengthened the rigidity of jib root, is conducive to load to be better delivered on turntable.From crane arm root to head, the framing members such as pulley, guide plate can be set, be respectively used to the wirerope-winding of cucurbit walking, lifting mechanism, rotation-preventing mechanism, jib head can arrange the assembly pulley of luffing mechanism, and major and minor suspension hook group mechanism and corresponding supporting pulley structure, realize hoisting crane luffing, operation hoists.
The utility model is continuous variable cross section structure, and lower boom adopts odd-shaped cross section, there is better rigidity and stability, each framing member is bearing load to greatest extent, the load-carrying capacity of effective and reasonable ground distribution structure, and special-shaped lower boom can be used as walking cucurbit track, has realized the multi-functional breakthrough of crane arm.
Claims (4)
1. an English truss formula continuous variable cross section chord member crane arm, it is characterized in that: described crane arm forms English truss formula structure by two top booms (1), a lower boom (2) and some diagonal web members (3), its cross-sectional plane is the del forming with diagonal web member (3) between two top booms (1) and a lower boom (2), and diagonal web member (3) is also triangle between top boom (1) and lower boom (2); Described crane arm is axially linear pattern, and in jib length range, is continuous variable cross section structure.
2. English truss formula continuous variable cross section chord member crane arm according to claim 1, is characterized in that: described top boom (1) is steel cylindrical tube.
3. English truss formula continuous variable cross section chord member crane arm according to claim 1, it is characterized in that: described lower boom (2) is comprised of track steel plate (21), arch-shaped steel plate (22) and reinforcing plate (23), weld with two blocks of track steel plates (21) respectively at arch-shaped steel plate (22) two ends, track steel plate (21) can be used as the orbit of walking cucurbit (4), and arch-shaped steel plate (22) top is welded with reinforcing plate (23).
4. English truss formula continuous variable cross section chord member crane arm according to claim 1, is characterized in that: described crane arm can be divided into root section, end segments and interlude, with bolts between segmentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689559.0U CN203582333U (en) | 2013-11-01 | 2013-11-01 | Triangular-truss-type continuous variable cross-section chord crane boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689559.0U CN203582333U (en) | 2013-11-01 | 2013-11-01 | Triangular-truss-type continuous variable cross-section chord crane boom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203582333U true CN203582333U (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320689559.0U Expired - Lifetime CN203582333U (en) | 2013-11-01 | 2013-11-01 | Triangular-truss-type continuous variable cross-section chord crane boom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203582333U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384085A (en) * | 2015-12-21 | 2016-03-09 | 太重（天津）滨海重型机械有限公司 | Tower column type three-chord-member boom ship crane |
| CN106081950A (en) * | 2016-08-23 | 2016-11-09 | 太重（天津）滨海重型机械有限公司 | Fixed grab bucket ship unloader |
-
2013
- 2013-11-01 CN CN201320689559.0U patent/CN203582333U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384085A (en) * | 2015-12-21 | 2016-03-09 | 太重（天津）滨海重型机械有限公司 | Tower column type three-chord-member boom ship crane |
| CN106081950A (en) * | 2016-08-23 | 2016-11-09 | 太重（天津）滨海重型机械有限公司 | Fixed grab bucket ship unloader |
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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 |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |