CN101077757A - Light folding arm type tower crane - Google Patents
Light folding arm type tower crane Download PDFInfo
- Publication number
- CN101077757A CN101077757A CN 200710016075 CN200710016075A CN101077757A CN 101077757 A CN101077757 A CN 101077757A CN 200710016075 CN200710016075 CN 200710016075 CN 200710016075 A CN200710016075 A CN 200710016075A CN 101077757 A CN101077757 A CN 101077757A
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- arm
- tower
- crane
- folding arm
- postbrachium
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Abstract
The light duty folding arm type tower crane includes an erector beam, a tower hood, an hoisting drum a pulley, an amplitude bogie and a hook. The erector beam includes a front arm and a back arm hinged together and connected through separate bracing cables to the tower hood. All the front arm, the back arm, the tower hood and the bracing cables form one parallelogram mechanism; the front and the back arm can form an angle of 60-200 deg; and when the back arm is elevated in the elevation angle up to 80 deg, the front arm maintains its horizontal state for the bogie to vary its amplitude. The present invention completes the arm folding state conversion and the assembling and disassembling of the crane by means of the self hoisting mechanism. The light duty folding arm type tower crane has increased arm folding function, raised performance and simple structure.
Description
Technical field
The present invention relates to a kind of technology that improves tower machine maximum height of lift, utilize warpage formula jib to make the tower arm serve as the maximum lifting height that a part of body of the tower improves the tower machine specifically, belong to the lifting transportation technology.
Background technology
Tower machine product structure and building operation demand are closely related, and Building Trade in China state of development with conspicuous characteristics shows two aspects, and on the one hand, urban architecture develops to high-rise superelevation layer, and the application of large-scale prefabricated member is increasingly extensive; Rural area and samll cities and towns buildings develop into the building constructions of 2～3 layers or 3～6 layers by the single layer structure in past on the other hand, add the reconstruction of the old city town in city, make the development of tower machine also evolve to both direction, promptly to maximizing and miniaturization develops.And for the building of construction floor height at 20～40m, as adopt the light-duty non-tower crane lifting height that rises certainly obviously not enough, if adopt jack up tower machine then to waste one's talent on a petty job again.
Summary of the invention
Purpose of the present invention is exactly to solve light-duty tower machine to the problem of construction floor height in the architecture construction lifting altitude deficiency of 20～40m, and a kind of light folding arm type tower crane is provided, and by folding arm, can make the maximum height of lift increase 10m of light-duty tower machine many.
Technical solution of the present invention is: a kind of light folding arm type tower crane, comprise crane arm, tower cap, winding drum, pulley, amplitude variation trolley and suspension hook, described crane arm comprises forearm and postbrachium, connects by hinge between the arm of front and back, and the front and back arm is connected with the tower cap by drag-line respectively.
Described forearm and postbrachium, tower cap and drag-line constitute parallel-crank mechanism, and the front and back arm can be folded into 60 °～200 ° angles, and the postbrachium maximum elevation is 80 °, and when postbrachium was steeved, forearm still kept horizontality to realize carriage amplitude varying.
Described tower cap is two rectangle chip truss structures, forms the chevron pointing of a hypsokinesis.Stressed with the tower machine that improves the folding arm state.Equilibrium arm also is a truss structural, and equilibrium arm is identical with crane arm two lower boom outer rim width dimensions with the width dimensions of tower cap, so both all can process on the crane arm frock, reduces production costs.
The present invention utilizes self hoisting mechanism to finish the conversion of folding arm state and the installing/dismounting of complete machine.Set up the folding arm function of QT20 tower machine, improved properties of product, but do not set up folding arm mechanism in addition, only utilized self hoisting mechanism to finish the conversion of folding arm state and the installing/dismounting of complete machine, simple in structure.
Description of drawings
Fig. 1 is the horizontal arm working state schematic representation of invention.
Working state schematic representation when Fig. 2 is a folding arm of the present invention.
Folding arm mechanism wiring figure when Fig. 3 is folding arm of the present invention conversion.
1. winding drums, 2. postbrachium drag-lines, 3. equilibrium arms, 4. pulley I, 5. pulley II, 6. postbrachiums, 7. folding arm assembly pulleys, 8. amplitude variation trolleys, 9. suspension hooks, 10. forearms, 11. knuckle pulleys among the figure.
The specific embodiment
Among Fig. 1, the crane arm of tower machine divides forearm 10 and postbrachium 6 two parts, adopts articulated manner between the arm of front and back, and the front and back arm is connected with the tower cap by drag-line respectively.Forearm 10 constitutes parallel-crank mechanism with postbrachium 6, tower cap and drag-line, and the front and back arm can be folded into 60 °～200 ° angles, and the postbrachium maximum elevation is 80 °, and when postbrachium was steeved, forearm still kept horizontality to realize carriage amplitude varying.
Tower machine when work hoist rope is walked around pulley I4 on the tower cap by winding drum 1, walks around pulley II5 again, walks around the pulley on amplitude variation trolley 8 and the suspension hook 9 then, is fixed at last on the leading sheave of front arm tip, by the running hoisting heavy of lifting mechanism.
The tower cap is two rectangle chip truss structures, forms the chevron pointing of a hypsokinesis.Stressed with the tower machine that improves the folding arm state.Equilibrium arm 3 also is a truss structural, and equilibrium arm 3 is identical with crane arm two lower boom outer rim width dimensions with the width dimensions of tower cap, so both all can process on the crane arm frock, reduces production costs.
In Fig. 2, tower machine when work hoist rope is walked around pulley I4 on the tower cap by winding drum 1, walks around pulley II5 and knuckle pulley 11 again, walks around the pulley on amplitude variation trolley 8 and the suspension hook 9 then, be fixed at last on the leading sheave of front arm tip, by the running hoisting heavy of lifting mechanism.
In Fig. 4, the tower machine carries out the folding arm conversion, at first hoist rope is pulled down during the folding arm conversion, the folding arm steel rope is walked around pulley I4 on the tower cap by winding drum 1, walk around folding arm assembly pulley 7 then, the other end of folding arm steel rope is fixed on the folding arm assembly pulley 7, by the running of lifting mechanism postbrachium 10 is mentioned, adjust postbrachium drag-line 2 when postbrachium 10 forwards certain angle to, the tower machine promptly enters the folding arm mode of operation.
Claims (3)
1, a kind of light folding arm type tower crane comprises crane arm, tower cap, winding drum, pulley, amplitude variation trolley and suspension hook, and it is characterized in that: described crane arm comprises forearm and postbrachium, connects by hinge between the arm of front and back, and the front and back arm is connected with the tower cap by drag-line respectively.
2, according to claims 1 described a kind of light folding arm type tower crane, it is characterized in that: described forearm and postbrachium, tower cap and drag-line constitute parallel-crank mechanism, and the front and back arm can be folded into 60 °～200 ° angles, and the postbrachium maximum elevation is 80 °.
3, according to claims 1 described a kind of light folding arm type tower crane, it is characterized in that: described tower cap is two rectangle chip truss structures, forms the chevron pointing of a hypsokinesis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710016075 CN101077757A (en) | 2007-06-19 | 2007-06-19 | Light folding arm type tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710016075 CN101077757A (en) | 2007-06-19 | 2007-06-19 | Light folding arm type tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101077757A true CN101077757A (en) | 2007-11-28 |
Family
ID=38905458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710016075 Pending CN101077757A (en) | 2007-06-19 | 2007-06-19 | Light folding arm type tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101077757A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759108B (en) * | 2008-12-25 | 2011-11-30 | 抚顺永茂建筑机械有限公司 | Self-disassembling device of tower crane |
| CN102431910A (en) * | 2011-12-12 | 2012-05-02 | 廊坊凯博建设机械科技有限公司 | Arm rack overhead automatic folding and unfolding mechanism of tri-fold arm tower crane and folding and unfolding method thereof |
| CN102602507A (en) * | 2012-03-16 | 2012-07-25 | 江苏海泰船舶成套设备有限公司 | Deck loading travelling crane arm folding mechanism for large-scale pipe-laying ship |
| CN112829296A (en) * | 2020-12-23 | 2021-05-25 | 芜湖市爱三迪电子科技有限公司 | Compound heating type 3D printer |
| CN112919340A (en) * | 2021-02-26 | 2021-06-08 | 徐州建机工程机械有限公司 | Automobile type fast-assembling tower crane for small-sized residential building |
-
2007
- 2007-06-19 CN CN 200710016075 patent/CN101077757A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759108B (en) * | 2008-12-25 | 2011-11-30 | 抚顺永茂建筑机械有限公司 | Self-disassembling device of tower crane |
| CN102431910A (en) * | 2011-12-12 | 2012-05-02 | 廊坊凯博建设机械科技有限公司 | Arm rack overhead automatic folding and unfolding mechanism of tri-fold arm tower crane and folding and unfolding method thereof |
| CN102602507A (en) * | 2012-03-16 | 2012-07-25 | 江苏海泰船舶成套设备有限公司 | Deck loading travelling crane arm folding mechanism for large-scale pipe-laying ship |
| CN112829296A (en) * | 2020-12-23 | 2021-05-25 | 芜湖市爱三迪电子科技有限公司 | Compound heating type 3D printer |
| CN112919340A (en) * | 2021-02-26 | 2021-06-08 | 徐州建机工程机械有限公司 | Automobile type fast-assembling tower crane for small-sized residential building |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |