CN201473237U - Safety device of jib frame of door machine - Google Patents
Safety device of jib frame of door machine Download PDFInfo
- Publication number
- CN201473237U CN201473237U CN2009202259138U CN200920225913U CN201473237U CN 201473237 U CN201473237 U CN 201473237U CN 2009202259138 U CN2009202259138 U CN 2009202259138U CN 200920225913 U CN200920225913 U CN 200920225913U CN 201473237 U CN201473237 U CN 201473237U
- Authority
- CN
- China
- Prior art keywords
- jib
- wire cable
- frame
- amplitude
- blocking piece
- 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
The utility model discloses a safety device of a jib frame of a door machine, overcoming the defects that after an amplitude wire cable of an elevator jib frame is broken on the prior high pedestal jib crane with a single jib frame, because the jib end of the jib frame is broken without supporting, the serious accidents of fatal crashes are easy to generate. A left blocking piece and a right blocking piece are fixed on both sides of the top end of a lambdoidal frame of the high pedestal jib crane along the direction of the amplitude wire cable, the amplitude wire cable passes through the left and right blocking pieces, and a wire clamping plate is fixed between the left blocking piece and the right blocking piece on the amplitude wire cable. Because the wire clamping plate is fixed on the amplitude wire cable between the left blocking piece and the right blocking piece of the lambdoidal frame of the crane, when the amplitude wire cable is broken suddenly, the jib frame falls down to withdraw the amplitude wire cable; when the wire clamping plate meets the blocking pieces on the wire cable, the wire clamping plate is blocked, so as to the jib frame stops to fall down, and a worker can quickly adopt a measure after discovering to gain time for maintenance work and avoid heavy accidents. The safety device has simple structure and low manufacturing cost and is safe and practical.
Description
Technical field
The utility model belongs to safety device, and is specifically a kind of behind the luffing wire cable rupture of high pedestal jib crane, prevents 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.
The utility model content
Technical problem to be solved in the utility model is, overcome on one-armed boom crane of existing seat type, after the steel rope of elevator boom rack luffing ruptures, because of losing to rely on, the jib cantilever end fractures, 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 utility model is to adopt 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 utility model also has following technical characterictic:
Described two block pieces are along the fixing pipe of luffing steel rope direction.
Advantage of the present utility model 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 utility model 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 utility model is described in further detail 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. the safety device of an arm support of portal hoist, it is characterized in that: be positioned at the both sides on top on the Shears of high pedestal jib crane, two block pieces about being fixed with along luffing steel rope direction, 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 |
|---|---|---|---|
| CN2009202259138U CN201473237U (en) | 2009-09-02 | 2009-09-02 | Safety device of jib frame of door machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202259138U CN201473237U (en) | 2009-09-02 | 2009-09-02 | Safety device of jib frame of door machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201473237U true CN201473237U (en) | 2010-05-19 |
Family
ID=42409481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202259138U Expired - Fee Related CN201473237U (en) | 2009-09-02 | 2009-09-02 | Safety device of jib frame of door machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201473237U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849633A (en) * | 2012-10-15 | 2013-01-02 | 江苏省交通科学研究院股份有限公司 | Anti-breakage device of steel wire rope for crane boom |
| CN102887442A (en) * | 2012-10-15 | 2013-01-23 | 江苏省交通科学研究院股份有限公司 | Pitching transmission system of shore elevator boom |
-
2009
- 2009-09-02 CN CN2009202259138U patent/CN201473237U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849633A (en) * | 2012-10-15 | 2013-01-02 | 江苏省交通科学研究院股份有限公司 | Anti-breakage device of steel wire rope for crane boom |
| CN102887442A (en) * | 2012-10-15 | 2013-01-23 | 江苏省交通科学研究院股份有限公司 | Pitching transmission system of shore elevator boom |
| CN102887442B (en) * | 2012-10-15 | 2014-11-26 | 江苏省交通科学研究院股份有限公司 | Pitching transmission system of shore elevator boom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20100902 |