CN202465125U - Portal crane - Google Patents
Portal crane Download PDFInfo
- Publication number
- CN202465125U CN202465125U CN2012200687049U CN201220068704U CN202465125U CN 202465125 U CN202465125 U CN 202465125U CN 2012200687049 U CN2012200687049 U CN 2012200687049U CN 201220068704 U CN201220068704 U CN 201220068704U CN 202465125 U CN202465125 U CN 202465125U
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- CN
- China
- Prior art keywords
- arm support
- jib
- crane
- gate
- swing
- 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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- Jib Cranes (AREA)
Abstract
A portal crane is characterized in that the crane comprises a gate-type under frame with a travelling mechanism arranged at the bottom, a tower body adopting a cylindrical structure and positioned above the gate-type under frame, a swing mechanism mounted at the top of the tower body adopting the cylindrical structure, a top arm support positioned above the swing mechanism, a flat head arm support horizontally mounted above the top arm support, and a variable amplitude trolley mounted on a horizontal rail of the flat head arm support. According to the utility model, the flat head arm support which is extensively applied to a construction tower crane in the prior art is used on the portal crane, a gantry and the tower body adopting the cylindrical structure are arranged at the lower part, the swing part at the top part is in the form of a flat arm, and variable amplitude is realized through the flat arm moving to and fro on the horizontal rail; and the arm support part is not required to swing up and down and is provided with a flat head, so that the top space is utilized effectively, and the craning performance is improved.
Description
Technical field
The utility model relates to a kind of weight-lifting equipment, is specifically related to a kind of high pedestal jib crane.
Background technology
Span winch is because its good rigidly, and radius of turn is little, mechanism's high efficiency, and capacity rating is high, to characteristics such as the comformability of goods kind are strong, is widely used in fields such as metallurgy, thermoelectricity, water power, harbour, shipbuilding.
The version of the high pedestal jib crane of prior art mostly is made up of bottom door frame and top rotating part, shown in accompanying drawing 1.Door frame generally adopts box type construction, for overhead span winch, also can process truss structure or cylinder mode.Last rotating part is made up of boom system, rotary supporting device, board, operator's compartment, electrical equipment etc.
The boom system of high pedestal jib crane is that characteristic is arranged most, and according to the work characteristics of span winch, it often needs band to carry luffing is the workability luffing, to raise the efficiency.The crane arm of its boom system is to swing back and forth around jib root hinge like this, and the top rotating part will account for very large space like this, makes that the clear space size below the jib is less, thereby has influenced lifting performance.Even boom system is not swung, lean on the running trolley formula to come luffing, its jib upper space is also very big, and shown in accompanying drawing 2, its jib top also has the cat head part, has also accounted for a part of space.
Summary of the invention
The purpose of the utility model improves a kind of high pedestal jib crane to existing weak point in the above-mentioned prior art just.
The purpose of the utility model can realize through following technique measures:
The high pedestal jib crane of the utility model comprises that the bottom is provided with the gate-type underframe of traveling gear; Be positioned at the body of the tower of the cylinder barrel shaped structure of gate-type underframe top; Be installed in the swing type mechanism at the body of the tower top of cylinder barrel shaped structure; Be positioned at the top jib of swing type mechanism top, and the amplitude variation trolley on level tack jib that is installed in jib top, top and the frame horizontal rail that is installed in the tack arm.
The beneficial effect of the utility model is following:
Because the utility model is used in the tack jib that is widely used in the prior art on the building tower machine on the high pedestal jib crane; The body of the tower of door frame and cylinder barrel shaped structure is adopted in its bottom, and the top rotating part adopts flat arm form, and its luffing is on the horizontal rail of flat arm, to backhaul row through dolly to realize; Because the jib part need not swing up and down; And jib itself is again flat head, thereby actv. has utilized upper space, has improved lifting performance.
Description of drawings
Fig. 1 is the span winch mechanism map of prior art.
Sequence number among the figure: 1 ' be traveling gear, 2 ' be door frame, 3 ' be swing type mechanism, 4 ' be boom system.
Fig. 2 is the non-oscillatory span winch mechanism map of boom system in the prior art.
Sequence number among the figure: 5 ' be the truss body of the tower, 6 ' be cat head, 7 ' be amplitude variation trolley.
Fig. 3 is the span winch mechanism map of the utility model.
Sequence number among the figure: the 1st, traveling gear, the 2nd, gate-type underframe, the 3rd, the body of the tower of cylinder barrel shaped structure, the 4th, swing type mechanism, the 5th, top jib, the 6th, driver's cab, the 7th, amplitude variation trolley, the 8th, tack jib.
The specific embodiment
To combine embodiment (accompanying drawing) to further describe below the utility model:
The high pedestal jib crane of the utility model comprises that the bottom is provided with the gate-type underframe 2 of traveling gear 1; Be positioned at the body of the tower 3 of the cylinder barrel shaped structure of gate-type underframe top; Be installed in the swing type mechanism 4 at the body of the tower top of cylinder barrel shaped structure; Be positioned at the top jib 5 of swing type mechanism 4 tops, and the amplitude variation trolley 7 on level tack jib 8 that is installed in top jib 5 tops and the frame horizontal rail that is installed in the tack arm.
The high pedestal jib crane of the utility model is specially adapted to use at shipyard; According to the shipbuilding yard work characteristics; Except the main structure of lifting, also have a large amount of fittingss and preparation of construction etc. to need lifting, and this part work capacity account for more than 90% of integral hoisting work capacity as the hull.The hull main structure generally all adopts large-sized gantry to hang completion because tonnage is big, and large-sized gantry hangs and can lift hundreds of tons to the thousands of tons of goods, but for safety, lifting speed is all very low.Fittings and preparation of construction tonnage little (generally being not more than 10t), but the lifting frequency is very high, and therefore very high to the efficient requirement of hoisting crane, if also hang with large-sized gantry, obviously efficient is too low.
In addition, the high pedestal jib crane of the utility model has characteristics such as mechanism's high efficiency, capacity rating height, and shipyard all is to adopt gate seat to hang when lifting fittings and preparation of construction.Shipyard is navigated during body assembling construction in that building berth or dock are enterprising, generally all is to hang hoisting large-size ship section with large-sized gantry, below large-sized gantry hangs, is equipped with the less gate seat of one or more hoisting capacity then and lifts up into capable fitting-out construction.According to such work characteristics; Shipyard is when carrying out the lifting of fittings and preparation of construction; Adopt this type gate machine,, can press close to the girder of gauntry crane to greatest extent because its topside is flat arm form; Thereby utilized the clear space size below the jib to greatest extent, promptly in limited altitude range, improved headroom under the gate seat machine hook as far as possible.Thereby improved lifting performance.
Claims (1)
1. high pedestal jib crane; It is characterized in that: said hoisting crane comprises that the bottom is provided with the gate-type underframe of traveling gear; Be positioned at the body of the tower of the cylinder barrel shaped structure of gate-type underframe top; Be installed in the swing type mechanism at the body of the tower top of cylinder barrel shaped structure, be positioned at the top jib of swing type mechanism top, and the amplitude variation trolley on level tack jib that is installed in jib top, top and the frame horizontal rail that is installed in the tack arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200687049U CN202465125U (en) | 2012-02-29 | 2012-02-29 | Portal crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200687049U CN202465125U (en) | 2012-02-29 | 2012-02-29 | Portal crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202465125U true CN202465125U (en) | 2012-10-03 |
Family
ID=46913305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200687049U Expired - Fee Related CN202465125U (en) | 2012-02-29 | 2012-02-29 | Portal crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202465125U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612998A (en) * | 2013-12-05 | 2014-03-05 | 广西大学 | Double-track height-variable gantry tower crane |
| CN108190766A (en) * | 2017-11-17 | 2018-06-22 | 赵保全 | A kind of automatic balance tower crane |
-
2012
- 2012-02-29 CN CN2012200687049U patent/CN202465125U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612998A (en) * | 2013-12-05 | 2014-03-05 | 广西大学 | Double-track height-variable gantry tower crane |
| CN108190766A (en) * | 2017-11-17 | 2018-06-22 | 赵保全 | A kind of automatic balance tower crane |
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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: 20121003 Termination date: 20150229 |
|
| EXPY | Termination of patent right or utility model |