CN101654212A - Safety device of gantry crane arm support - Google Patents
Safety device of gantry crane arm support Download PDFInfo
- Publication number
- CN101654212A CN101654212A CN200910018252A CN200910018252A CN101654212A CN 101654212 A CN101654212 A CN 101654212A CN 200910018252 A CN200910018252 A CN 200910018252A CN 200910018252 A CN200910018252 A CN 200910018252A CN 101654212 A CN101654212 A CN 101654212A
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- Prior art keywords
- wirerope
- amplitude
- crane
- rope
- steel rope
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Abstract
The invention discloses a safety device of a gantry crane arm support aiming to overcome the defect of the existing gantry single cantilever crane that when a wirerope used for the amplitude of a cantilever crane breaks, the cantilever end of the cantilever crane loses support and breaks so as to cause fatal accident. The A-bracket of the gantry crane is arranged on the both sides of the top end,a left stopper and a right stopper are fixed along the amplitude wirerope direction, the amplitude wirerope passes through the left stopper and the right stopper and a rope-gripping plate is fixed onthe amplitude wirerope between the left stopper and the right stopper. As the rope-gripping plate is fixed on the amplitude wirerope which is between the two stoppers of the A-bracket of the crane, when the amplitude wirerope breaks suddenly, the cantilever crane drops so as to draw back the amplitude wirerope, the rope-gripping plate of the wirerope touches the stoppers and is blocked so as to stop the cantilever crane to drop and the worker finds the situation and takes action rapidly so as to gain time for maintenance work and avoid the major incident. The safety device of the invention hassimple structure and low production cost and is safe and practical.
Description
Technical field
The invention belongs to safety device, specifically a kind of behind the luffing wire cable rupture of high pedestal jib crane, prevent the device that the jib of hoisting crane fractures and meets accident.
Background technology
The S5070 high pedestal jib crane, it is the installation door machine of building ship and the special use of marine oil engineering industry, be provided with main hoisting mechanism and auxiliary hoisting mechanism, the peak load of the major and minor suspension hook on main hoisting mechanism and the secondary main machine frame that hoists is respectively 50t and 12t, and lifting load is big.The jib that hoists of above-mentioned hoisting crane is one-armed a cantilever design, the major and minor suspension hook that is the lift heavy thing all is installed on the front and back position of same jib cantilever end, an end relative of jib with cantilever end, hinge is connected on the rotating disk of high pedestal jib crane Shears lower end; The luffing steel rope is walked around the assembly pulley on Shears top of high pedestal jib crane and the assembly pulley of jib upper cantilever end back and forth, and the luffing that rises and falls during the jib hoisting heavy relies on the length of regulating the luffing steel rope to draw realization fully.
Regulate the length of luffing steel rope, adopted the double crosslinking drum collocation structure form of steel rope, promptly on the periphery of reel, length along reel, be processed into the left-hand screw grooving and the right-hand screw grooving of two groups of symmetries respectively, one end of luffing steel rope the left-hand screw grooving take root fixing after, walk around assembly pulley on the high pedestal jib crane Shears top and the assembly pulley on the jib that hoists again, turn back to the right-hand screw grooving then again and take root fixing.Because the work of elevator machinery is busy especially again, what the luffing steel rope used is one, forward and reverse the detouring on assembly pulley that the luffing steel rope does not stop makes the jib luffing that rises and falls, the fatigue and the wearing and tearing of luffing steel rope are inevitable, the fracture in case steel rope met accident outside turn(a)round, the cantilever end of jib lift heavy thing will lose dependence, will take place that jib fractures, weight falls, when serious even take place that the door machine is tumbled, fatal crass's serious accident.
How guaranteeing that the cantilever end of jib can not drop at once and fracture, and for the repairman wins the repairing time, avoids taking place fatal crass's accident when steel rope meets accident fracture, is the problem that needs solution at present.
Summary of the invention
Technical matters to be solved by this invention is, overcome on one-armed boom crane of existing seat type, after the steel rope of elevator boom rack luffing ruptures, fracture because of the jib cantilever end loses to rely on, the shortcoming of fatal crass's major accident easily takes place, and a kind of safety device of arm support of portal hoist is provided.
In order to solve the problems referred to above that prior art exists, the present invention adopts following technical proposals to realize: the both sides that are positioned at the top on the Shears of high pedestal jib crane, two block pieces about suitable luffing steel rope direction is fixed with, the luffing steel rope is worn left and right sides block piece and mistake, on the luffing steel rope between the block piece of the left and right sides, be fixed with rope clamping plate.
The present invention also has following technical characterictic:
Described two block pieces are along the fixing pipe of luffing steel rope direction.
Advantage of the present invention and good effect are, owing to be fixed on the Shears of high pedestal jib crane top passing, on the luffing steel rope between two block pieces, be fixed with rope clamping plate, when the luffing steel rope makes when suddenly fracture taking place in the process of jib luffing, the also pumpback thereupon of steel wire rope head of fracture, because the luffing steel rope is one, there is the trend of falling rapidly downwards in the cantilever end of jib lift heavy thing because of losing to rely on, when the rope clamping plate on the steel rope of pumpback is run into block piece, will be stopped by block piece and make jib stop the tenesmus, at this moment operating personal is taken measures rapidly after finding, win the time to maintenance work like this, avoided the generation of grave accident.Above-mentioned safety device is simple in structure, and is cheap for manufacturing cost, safe, practical.
Description of drawings
Fig. 1 moves towards scheme drawing for the luffing steel rope that the present invention is equipped with the arm support of portal hoist safety device;
Fig. 2 is the structural representation of arm support of portal hoist safety device among Fig. 1.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Among Fig. 1, the jib 7 that hoists of high pedestal jib crane is one-armed a cantilever design, and promptly the major and minor suspension hook 9 of lift heavy thing all is installed on the front and back position of same jib 7 cantilever terminations.Luffing steel rope 6 is walked around the assembly pulley 8 on the cantilever end of the assembly pulley 5 on Shears 1 top of high pedestal jib crane and jib 7 back and forth, and the luffing that rises and falls of jib 7 relies on the length of regulating luffing steel rope 6 to realize fully.
The Width both sides on top on the Shears 1 of high pedestal jib crane, two block pieces about suitable luffing steel rope 6 directions are fixed with, luffing steel rope 6 is worn left and right sides block piece and mistake, is being fixed with the rope clamping plate 4 that can't pass through block piece on the luffing steel rope 6 between the block piece of the left and right sides.When in the normal luffing scope of jib 7, working, rope clamping plate 4 on the luffing steel rope 6 can not run into left and right sides block piece, have only when the 6 fracture pumpbacks of luffing steel rope, rope clamping plate 4 just can be run into left and right sides block piece and stop pumpback, guaranteed that jib 7 can not fall rapidly, rupture downwards, can be repairing work and gain time, avoid grave accident to take place in moment.
Among Fig. 2, described two block pieces be about two sections pipes 2, pipe 2 is respectively along the luffing steel rope 6 on the Shears 1 top width directions, is supported and fixed on base 2.1 on the crossbeam 3 of Shears 1 (referring to Fig. 1), about on the luffing steel rope 6 of two pipes between 2, be fixed with rope clamping plate 4 with bolt 4.1.Described pipe 2 can be square tube, pipe, maybe can stop the other forms of pipe that rope clamping plate 4 passes through.
Certainly, above-mentioned left and right sides block piece can also be other versions that can stop that rope clamping plate 4 passes through except using pipe 2.
Claims (2)
1, a kind of safety device of arm support of portal hoist, it is characterized in that: the both sides that are positioned at the top on the Shears of high pedestal jib crane, two block pieces about suitable luffing steel rope direction is fixed with, the luffing steel rope is worn left and right sides block piece and mistake, on the luffing steel rope between the block piece of the left and right sides, be fixed with rope clamping plate.
2, the safety device of arm support of portal hoist as claimed in claim 1 is characterized in that: the pipe of described two block pieces for fixing along luffing steel rope direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910018252A CN101654212A (en) | 2009-09-02 | 2009-09-02 | Safety device of gantry crane arm support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910018252A CN101654212A (en) | 2009-09-02 | 2009-09-02 | Safety device of gantry crane arm support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101654212A true CN101654212A (en) | 2010-02-24 |
Family
ID=41708710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910018252A Pending CN101654212A (en) | 2009-09-02 | 2009-09-02 | Safety device of gantry crane arm support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101654212A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823631A (en) * | 2010-04-22 | 2010-09-08 | 青岛港（集团）有限公司 | Protective device of elevating mechanism of stacker-reclaimer |
| CN103896163A (en) * | 2014-04-10 | 2014-07-02 | 太重（天津）滨海重型机械有限公司 | Single-boom gantry crane amplitude-variable compensation system and single-boom gantry crane |
| CN106931616A (en) * | 2017-04-14 | 2017-07-07 | 珠海格力电器股份有限公司 | Panel assembly and the air-conditioner with it |
-
2009
- 2009-09-02 CN CN200910018252A patent/CN101654212A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823631A (en) * | 2010-04-22 | 2010-09-08 | 青岛港（集团）有限公司 | Protective device of elevating mechanism of stacker-reclaimer |
| CN101823631B (en) * | 2010-04-22 | 2012-03-07 | 青岛港（集团）有限公司 | Protective device of elevating mechanism of stacker-reclaimer |
| CN103896163A (en) * | 2014-04-10 | 2014-07-02 | 太重（天津）滨海重型机械有限公司 | Single-boom gantry crane amplitude-variable compensation system and single-boom gantry crane |
| CN106931616A (en) * | 2017-04-14 | 2017-07-07 | 珠海格力电器股份有限公司 | Panel assembly and the air-conditioner with it |
| WO2018188374A1 (en) * | 2017-04-14 | 2018-10-18 | 格力电器（武汉）有限公司 | Panel assembly and air conditioner having same |
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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 |
Open date: 20100224 |