CN201347330Y - A-shaped frame landing gear of crawler crane - Google Patents
A-shaped frame landing gear of crawler crane Download PDFInfo
- Publication number
- CN201347330Y CN201347330Y CNU2008202191484U CN200820219148U CN201347330Y CN 201347330 Y CN201347330 Y CN 201347330Y CN U2008202191484 U CNU2008202191484 U CN U2008202191484U CN 200820219148 U CN200820219148 U CN 200820219148U CN 201347330 Y CN201347330 Y CN 201347330Y
- Authority
- CN
- China
- Prior art keywords
- support
- shaped frame
- platform
- crawler crane
- sway
- 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
Links
Images
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model discloses an A-shaped frame landing gear of a crawler crane, wherein a boom platform of the crawler crane is connected with a basis arm, a support and an A-shaped frame, the basis arm is connected with a sway rod, the basis arm is articulated on the platform, the support is fixed on the middle portion of the platform, a front support rod of the A-shaped frame is articulated on the support, and a rear support rod is connected on the rear side of the platform. The lower end of the sway rod is articulated on the support, the upper end is connected with the basis arm, and the sway rod is an expansion link which is drawn out and inserted by an inner pipe and an outer pipe. A pin hole which penetrates the inner pipe and the outer pipe is drilled on the sway rod, and a pin shaft matched with the pin hole is arranged on the sway rod. When the pin shaft is inserted in the pin hole, the length of the sway rod can be fixed. The A-shaped frame landing gear of the crawler crane uses a sway device and a variable amplitude device of a crane to achieve the landing of an A-shaped frame, thereby saving labor and material resources, and increasing the safety. The A-shaped frame landing gear of the crawler crane can be used on the design of various novel crawler cranes, and also can be used to improve the prior crawler cranes.
Description
Technical field
The utility model belongs to the crawler crane technical field, and the A shape that is specifically related to crawler crane is erected dropping control device.
Background technology
A shape frame is the facility of crawler crane upper support luffing steel cable.For saving the space, A shape frame is a bascule, and front support rod is a fixed length, and back stay is elongated telescopic structure.A shape frame puts down when walking, transportation, is the rise state when lifting work.At present, the two kinds of situations nothing more than of rising and falling of domestic little tonnage crawler crane A shape frame: one, auxiliary method of rising and falling is that outer boundary provides external force, with the frame pull-up of A shape or put down, available various weight-lifting equipments cooperate.Its two, on A shape frame, jacking cylinder is installed, realize rising and falling of A shape frame with oil cylinder power.Two kinds of methods all have certain deficiency, and first method self can not rise, even fall self can fall, but impulsive force is bigger.Second method need be installed oil cylinder, control cock etc., increases manufacturing cost.
Summary of the invention
The purpose of this utility model provides a kind of crawler crane A shape and erects dropping control device, makes A shape frame not use any external accessory, jacking cylinder is not installed can be risen and fallen voluntarily.The technical solution adopted in the utility model is: be connected with basic arm, support and A shape frame on the arm platform of crawler crane, be connected with sway bar on the basic arm.The basis arm is hinged on the platform, and support is fixed on the platform middle part, and the front support rod of A shape frame is hinged on the support, and back stay is connected the flat-bed back.The sway bar lower end is hinged on the support, and the upper end is connected with basic arm, and sway bar is the expansion link that inner and outer pipe pulls and pushes.Under the normal circumstances, during luffing steel cable pulling jib luffing, sway bar is stretched with the swing of jib, and jib is with the tension of steel cable or loosen and lifting can not drive rising and falling of A shape frame.And be defined when sway bar length, during stationkeeping that jib rises, the tension of steel cable or loosen and A shape frame is risen or fall.The utility model is to bore a pin-and-hole that penetrates inner and outer pipe on sway bar, and disposes a bearing pin that adapts with this pin-and-hole, when bearing pin is inserted pin-and-hole, the length of sway bar is fixed.
A shape is erected the working process that falls:
1, at first connect basic arm, make the diesel engine low-speed running, strain the luffing steel cable at leisure, crane arm is risen about 45 when spending, the pin-and-hole of sway bar inner and outer pipe overlaps, and bearing pin is inserted in the hole;
2, the bearing pin on the A shape frame back stay is extracted;
3, make diesel engine continue low-speed running, strain the luffing steel cable at leisure, the pull-up of A shape frame is raise, till the mode of operation vertex, when A shape frame was raised to vertex, the inside and outside pore of the last pin-and-hole on the A shape frame back stay overlapped, and stop the winch running.
4, A shape frame after poppet is fixed with bearing pin, extracted the bearing pin in the sway bar, finish and rise and fall.
The utility model utilizes the anti-tilt device of hoisting crane itself and luffing device to realize rising and falling of A shape frame, uses manpower and material resources sparingly, and has improved safety.The utility model can be used for the design of various novel crawler cranes, also can be used for the transformation of existing crawler crane.
Description of drawings
Fig. 1 is for having crawler crane A shape frame and platform, support bonded assembly structural representation now;
Scheme drawing when Fig. 2 falls for the utility model A shape frame;
Scheme drawing when Fig. 3 is the pull-up of the utility model A shape frame;
Fig. 4 is the I portion enlarged drawing of Fig. 2, Fig. 3.
The specific embodiment
Be connected with basic arm 5, support 2 and A shape frame 3 on the arm platform 1 of crawler crane, be connected with sway bar 6 on the basic arm 5.The ear seat of basis arm 5 is hinged on the platform 1, and support 2 is fixed on platform 1 middle part, and the front support rod of A shape frame 3 is hinged on the top of support 2, and back stay is connected the back of platform 1.Sway bar 6 lower ends are hinged on the support 2, and upper end and basic arm 5 are hinged, and sway bar 6 is expansion links that inner and outer pipe pulls and pushes, assembly pulley on the luffing steel cable pile warp A shape frame 3 of drawing on the luffing mechanism and the assembly pulley on the jib.The utility model is when elevator boom rack rises about 45 °, and brill one penetrates the pin-and-hole of inner and outer pipe on sway bar, and promptly when elevator boom rack rose about 45 °, the pin-and-hole on the sway bar inner and outer pipe coincided.Make a bearing pin 7 that adapts with pin-and-hole, when bearing pin 7 is inserted pin-and-hole, the length of sway bar 6 is fixed, thereby making jib raise the angle fixes, extract the bearing pin 4 of A shape frame back stay this moment, slowly rotates luffing mechanism tension steel cable, will be with the pull-up of A shape frame.When A shape frame was raised to the summit, the inside and outside pore of the last pin-and-hole on the A shape frame back stay overlapped, and stops the running of luffing mechanism, and bearing pin 4 is inserted the last pin-and-hole of A shape frame back stay again, had promptly finished the rise process of A shape frame.Falling of A shape frame is opposite with said process.
Claims (1)
1, a kind of crawler crane A shape is erected dropping control device, is connected with basic arm (5), support (2) and A shape frame (3) on the arm platform (1) of crawler crane, is connected with sway bar (6) on the basic arm (5); Basis arm (5) is hinged on the platform (1), and support (2) is fixed on platform (1) middle part, and the front support rod of A shape frame (3) is hinged on the support (2), and back stay is connected the back of platform (1); Sway bar (6) lower end is hinged on the support (2), and the upper end is connected with basic arm (5), and sway bar (6) is the expansion link that inner and outer pipe pulls and pushes; It is characterized in that: go up in sway bar (6) and bore a pin-and-hole that penetrates inner and outer pipe, dispose a bearing pin that adapts with this pin-and-hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202191484U CN201347330Y (en) | 2008-11-13 | 2008-11-13 | A-shaped frame landing gear of crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202191484U CN201347330Y (en) | 2008-11-13 | 2008-11-13 | A-shaped frame landing gear of crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201347330Y true CN201347330Y (en) | 2009-11-18 |
Family
ID=41366804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202191484U Expired - Fee Related CN201347330Y (en) | 2008-11-13 | 2008-11-13 | A-shaped frame landing gear of crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201347330Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935999A (en) * | 2010-08-09 | 2011-01-05 | 辽宁抚挖重工机械股份有限公司 | Front leaning-resistance device for forced ramming device |
| CN102491203A (en) * | 2011-12-13 | 2012-06-13 | 三一集团有限公司 | Crane and luffing mechanism thereof |
| CN104477799A (en) * | 2014-12-22 | 2015-04-01 | 三一汽车起重机械有限公司 | Telescopic drivingmechanism and crane |
-
2008
- 2008-11-13 CN CNU2008202191484U patent/CN201347330Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935999A (en) * | 2010-08-09 | 2011-01-05 | 辽宁抚挖重工机械股份有限公司 | Front leaning-resistance device for forced ramming device |
| CN102491203A (en) * | 2011-12-13 | 2012-06-13 | 三一集团有限公司 | Crane and luffing mechanism thereof |
| CN104477799A (en) * | 2014-12-22 | 2015-04-01 | 三一汽车起重机械有限公司 | Telescopic drivingmechanism and crane |
| CN104477799B (en) * | 2014-12-22 | 2016-08-24 | 三一汽车起重机械有限公司 | Telescoping drive mechanism and crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201901539U (en) | Internal climbing type and external climbing type tower crane with luffing jib | |
| CN102659036B (en) | Hydraulic hoisting machine for loading and unloading equipment and material in underground coal mine | |
| CN201546631U (en) | Telescopic mast drill derrick | |
| CN201458598U (en) | Automobile crane | |
| CN101985917B (en) | Splitting installation and construction method of marine wind generating set and equipment thereof | |
| CN202415019U (en) | Rapidly erected tire type crane | |
| CN106219420A (en) | A kind of fast erecting traveling tower crane | |
| CN201087083Y (en) | Crane with self-disassembling mechanism | |
| CN201347330Y (en) | A-shaped frame landing gear of crawler crane | |
| CN201059162Y (en) | Hydro-cylinder lifting type folding derrick | |
| CN202296907U (en) | Suspension arm balanced movable arm tower crane capable of luffing based on steel rope traction | |
| CN102303821A (en) | Luffing tower crane with balanced type suspension arm based on traction luffing of steel rope | |
| CN106185657B (en) | A kind of extending formula crane gear balance weight mechanism | |
| CN101357743B (en) | Crane hook magnification-changing mechanism of movable arm variation-amplitude crane | |
| CN206051377U (en) | Extending formula crane gear balance weight mechanism | |
| CN205892576U (en) | Fast set up tower crane's jib loading boom turns over a device | |
| CN202322118U (en) | Rigid telescopic hydraulic separate counter weight crane | |
| CN205312925U (en) | Hydraulic luffing formula swing arm tower machine | |
| CN212315380U (en) | Tower crane mast lifting device | |
| CN2937069Y (en) | Hydraulic full drive fast expansion cantilever crane for self-running electric station | |
| CN203769666U (en) | Head frame hoisting device | |
| CN204040598U (en) | The two rocker pole of a kind of remote control hydraulic | |
| CN203959691U (en) | A kind of hatchcover seat crane | |
| CN202937180U (en) | External winch pressure device | |
| CN108729855B (en) | Drilling and mounting integrated anchor rod construction equipment and using method thereof |
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: 20091118 Termination date: 20151113 |