CN201288031Y - Luffing jib stacker crane slewing platform - Google Patents
Luffing jib stacker crane slewing platform Download PDFInfo
- Publication number
- CN201288031Y CN201288031Y CNU2008200135598U CN200820013559U CN201288031Y CN 201288031 Y CN201288031 Y CN 201288031Y CN U2008200135598 U CNU2008200135598 U CN U2008200135598U CN 200820013559 U CN200820013559 U CN 200820013559U CN 201288031 Y CN201288031 Y CN 201288031Y
- Authority
- CN
- China
- Prior art keywords
- tower crane
- connecting rod
- upper rotation
- revolving table
- arm
- 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 discloses a revolving table of a luffing tower crane, which comprises a balance arm and an upper rotation, wherein an A-shaped rack and a supporting connecting rod are arranged on the upper rotation, the front end of the balance arm is connected on the top point of the A-shaped rack, the bottom of the A-shaped rack is fixedly connected with the upper rotation, and the middle portion of the balance arm is connected on the upper rotation through a supporting connecting rod. Since the supporting connecting rod is added on the rear direction, the length of a suspension arm of the revolving table is reduced, which greatly reduces the maximum bending moment on the main beam of the revolving table, and creates the conditions for reducing the section of a main beam and the weight. Adopting the connecting method, not only the sole weight is reduced, the economy is good, but also the structure service life, the reliability and the safety of the luffing tower crane are improved. The revolving table can be applied on all the newly designed various luffing tower cranes or on the improvement of an original luffing tower crane.
Description
One, technical field
The utility model relates to the swing type mechanism of swing arm tower crane.
Two, background technology
The swing type mechanism that domestic and international swing arm tower crane generally adopts all is directly to use bearing pin bonded assembly form by last revolution and equilibrium arm, turn table is a kind of structure of cantilever position, and this structure is subjected to moment of flexure big, needs stronger support, gyration gear ring is big, complete machine from great.Suffered moment is big, and turn table root anti-fatigue performance is poor.
Three, summary of the invention
The purpose of this utility model provides a kind of swing arm tower crane rotation platform, and it can improve strained condition, reduces equilibrium arm deadweight and the moment of counterweight for the structure generation, thereby can make supporting construction simplify expendable weight, saving in material.The technical solution adopted in the utility model is: the tower crane rotation platform comprises equilibrium arm and last revolution, on turn round A shape frame and support link be installed, equilibrium arm be not direct connection in the last turn, but its front end is connected the last summit of A shape frame, captives joint with last revolution in the bottom of A shape frame; The middle part of equilibrium arm connects in the last turn by support link.
Swing arm tower crane rotation platform since increased the rear to bearing connecting rod, shortened the turn table jib-length, just alleviated the maximal bending moment on the turn table girder greatly, for reducing girder section and weight has been created condition.This point is particularly important to whip-typed tower crane, because turn table often is subjected to the reverse load effect, reduces stress amplitude and has just improved strength at repeated alternation effectively.Adopt this kind method of attachment, not only deadweight reduces, good economy performance, and improved the structural life-time of movable arm type tower machine and reliability, safety.The utility model can be applied on all newly-designed various model movable arm type tower machines, perhaps is applied in the transformation of old movable arm type tower machine.
Four, description of drawings
Fig. 1 is existing swing arm tower crane rotation flat-bed structural representation;
Fig. 2 is existing rotating structural representation;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 goes up rotating structural representation for the utility model after A shape frame is installed;
Fig. 5 is the structural representation of the utility model support link.
Five, the specific embodiment
Existing moving tower crane rotation platform is the side of the front end direct connection of equilibrium arm 1 in last revolution 2.The utility model is to be provided with A shape frame 3 and support link 4 in last revolution 2, and the front end of equilibrium arm 1 is not the side of direct connection in last revolution 2, but is connected with bearing pin on the last summit of A shape frame 3, captives joint with last revolution 2 in the bottom of A shape frame 3.The middle part of equilibrium arm 1 connects in the last turn by support link 4.The rear to bearing connecting rod 4 adopt the plane framework forms, make it can bear rotating force of inertia of part of horizontal or wind-force, also can strengthen the horizontal rigidity of turn table.Bearing connecting rod 4 is connected with circular nut with equilibrium arm 1 usefulness bearing pin, spacer, and support link 4 other ends connect in the last turn with bearing pin, and this end is connected on the equilibrium arm 1 with rope is installed simultaneously.
Claims (2)
1, a kind of swing arm tower crane rotation platform, comprise equilibrium arm (1) and last revolution (2), it is characterized in that: going up in the revolution (2) has A shape frame (3) and support link (4), the front end of equilibrium arm (1) is connected the last summit of A shape frame (3), captives joint with last revolution (2) in the bottom of A shape frame (3); The middle part of equilibrium arm (1) is connected in the revolution (2) by support link (4).
2, swing arm tower crane rotation platform according to claim 1 is characterized in that: bearing connecting rod (4) adopts the plane framework form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200135598U CN201288031Y (en) | 2008-06-19 | 2008-06-19 | Luffing jib stacker crane slewing platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200135598U CN201288031Y (en) | 2008-06-19 | 2008-06-19 | Luffing jib stacker crane slewing platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201288031Y true CN201288031Y (en) | 2009-08-12 |
Family
ID=40979708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200135598U Expired - Fee Related CN201288031Y (en) | 2008-06-19 | 2008-06-19 | Luffing jib stacker crane slewing platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201288031Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285543A (en) * | 2012-02-24 | 2013-09-11 | 艾勃得盈 | Turntable and vehicle including the same |
| CN103496641A (en) * | 2013-09-04 | 2014-01-08 | 武汉船用机械有限责任公司 | Rotary table structure and crane having rotary table structure |
| CN108313898A (en) * | 2018-02-10 | 2018-07-24 | 韶关学院 | A kind of truss-like turntable and engineering machinery |
-
2008
- 2008-06-19 CN CNU2008200135598U patent/CN201288031Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285543A (en) * | 2012-02-24 | 2013-09-11 | 艾勃得盈 | Turntable and vehicle including the same |
| CN103285543B (en) * | 2012-02-24 | 2016-03-16 | 艾勃得盈 | Turntable and comprise the vehicle of this turntable |
| CN103496641A (en) * | 2013-09-04 | 2014-01-08 | 武汉船用机械有限责任公司 | Rotary table structure and crane having rotary table structure |
| CN103496641B (en) * | 2013-09-04 | 2015-10-21 | 武汉船用机械有限责任公司 | A kind of turntable structure and there is the hoisting crane of this turntable structure |
| CN108313898A (en) * | 2018-02-10 | 2018-07-24 | 韶关学院 | A kind of truss-like turntable and engineering machinery |
| CN108313898B (en) * | 2018-02-10 | 2020-06-12 | 韶关学院 | Truss type rotary table and engineering machinery |
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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: 20090812 Termination date: 20160619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |