CN201473238U - Safety cable for cantilever arm frame of crane - Google Patents
Safety cable for cantilever arm frame of crane Download PDFInfo
- Publication number
- CN201473238U CN201473238U CN2009202259316U CN200920225931U CN201473238U CN 201473238 U CN201473238 U CN 201473238U CN 2009202259316 U CN2009202259316 U CN 2009202259316U CN 200920225931 U CN200920225931 U CN 200920225931U CN 201473238 U CN201473238 U CN 201473238U
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- China
- Prior art keywords
- jib
- cantilever
- arm frame
- shackle
- frame
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- Expired - Fee Related
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Abstract
The utility model discloses a safety cable for a cantilever arm frame of a crane, which aims to overcome the defects that in the prior independent-arm frame cantilever gantry crane, when the variable amplitude steel wire rope suffers from fatigue breakage, the arm frame falls and a series of severe accidents occur; a shackle is arranged on the top of an A-frame at the upper part of the independent-arm frame cantilever gantry crane on one side of the A-frame on which the arm frame is arranged along the length direction of the arm frame; the same shackle which corresponds to the shackle on the arm frame are arranged at the upper part of the cantilever arm end of the arm frame; and both ends of a soft pull rope are respectively connected with the two corresponding shackles. Because the soft pull rope is arranged between the top of the A-frame of the crane and the cantilever arm end of the arm frame, once the variable amplitude steel wire rope is broken, the head of the variable amplitude steel wire rope starts to withdraw; and when the cantilever arm end of the arm frame falls, the soft pull rope for pulling the cantilever end tied on the arm frame is immediately tightened, so that the arm frame stops falling, so as to prevent severe accidents from occurring, and greatly improve the safety performance of the equipment.
Description
Technical field
The utility model belongs to the safety device of elevator machinery, specifically a kind of life line that is used for high pedestal jib crane cantilever jib.
Background technology
The S5070 hoisting crane is an one-armed cantilevered span winch, 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, and promptly the major and minor suspension hook of lift heavy thing all is installed on the front and back position of same jib end.One end of jib is connected with the rotating disk hinge of high pedestal jib crane Shears lower end, and the other end is a cantilevered; 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 of lifting mechanism jib relies on the length of regulating the luffing steel rope to draw realization fully.Luffing mechanism adopts the luffing version of cable drum compensation, the luffing mechanism reel adopts double crosslinking drum, promptly the center line from the amplitude-changing drum periphery is that the boundary is divided into left and right sides two halves, symmetry processes two groups of groovings of left and right sides rotation direction on the two halves of the left and right sides, one end of a luffing steel rope turns back to the dextrorotation grooving again by the pulley on Shears and the jib and takes root after left-handed grooving is taken root.
Because one-armed cantilevered span winch often is in the busy work, fatigue also can take place in the luffing steel rope of long-term use, needs regularly to change in maintenance.But, can not get rid of the possibility that the luffing steel rope takes place to rupture suddenly beyond turn(a)round owing to the frequency difference of hoisting crane use.When fracture suddenly takes place in the luffing steel rope, the cantilever end of jib will fall downwards rapidly because of losing traction force, make the rapid pumpback of fag end of fracture place, so just cause that weight falls, jib fractures, even take place that the door machine is tumbled, fatal crass's major accident.
The utility model content
Technical problem to be solved in the utility model is, overcome one-armed cantilevered high pedestal jib crane of prior art, when its luffing steel rope suddenly fracture by fatigue takes place, jib is fallen, and the shortcoming of a series of major accidents of related generation, a kind of safety line used in crane cantilever jib 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: at the top of one-armed cantilevered span winch top Shears, be positioned at the side that Shears is installed jib, along the length direction of jib shackle is installed; On the cantilever end top of jib, corresponding with the shackle on the jib same shackle is installed, the two ends of soft drawn rope are connected to two cooresponding unloading and buckle.
The utility model also has following technical characterictic:
The connection mode at described soft drawn rope two ends is, at the U-shaped end of two U-shaped shackles, be with respectively U-shaped relatively, with the same joining shackle of U-shaped shackle, the two ends of soft drawn rope are enclosed within on the joining shackle respectively;
Described soft drawn rope is two that are oppositely arranged between the cantilever end of the top of Shears and jib, and soft drawn rope two ends lie in Shears top and jib cantilever end respectively separately on two side positions of Width.
In the work, when the jib of one-armed cantilevered span winch under the effect of luffing steel rope during normal operation, the soft drawn rope that is connected Shears top and jib cantilever end is in relaxation state all the time, only rupture at the luffing steel rope, when jib began to drop, the soft drawn rope just was in tension.
Advantage of the present utility model and good effect are, owing between the cantilever end of the Shears top of jib cantilevered span winch and jib, the soft drawn rope that is in relaxation state has been installed, in the process of lifting cargo, in case the luffing steel rope ruptures, the fag end of luffing steel rope begins pumpback, when the jib cantilever end drops thereupon, the soft drawn rope that ties up to tractive cantilever end on the Shears can be tightened immediately, jib is stopped falling, can not cause institute's hoisting thing to fall, jib fractures, even a generation door machine is tumbled, fatal crass's major accident, guaranteed the safety of complete machine operation, reliably, improved device ' greatly.
Description of drawings
Fig. 1 is the integral structure scheme drawing of one-armed cantilevered span winch of band life line;
Fig. 2 looks scheme drawing for the master of the utility model part among Fig. 1;
Fig. 3 is the structural representation of U-shaped shackle among Fig. 2.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Among Fig. 1, on the top of one-armed cantilevered span winch, be positioned at Shears 1 be installed on the rotating disk 1.1, one side of rotating disk 1.1 is equipped with the jib of cantilever, luffing steel rope 7 is connected between the cantilever end 6.1 of Shears 1 top and jib 6, regulate the length of luffing steel rope 7, make jib 6 luffing lifting cargos.Between cantilever end 6.1 tops of the top of Shears 1 and jib 6, be connected with soft drawn rope 5 (referring to Fig. 2), during normal operation, soft drawn rope 5 is in relaxation state.
Among Fig. 2, at the top of described Shears 1, be positioned at the right side that Shears 1 is installed jib 6, be fixed with ear seat 2, the band bearing pin end of U-shaped shackle 3 is through on the ear seat 2; Equally, the U-shaped end that 3, two identical U-shaped shackles 3 of U-shaped shackle also are installed on cantilever end 6.1 tops of jib 6 is oppositely arranged;
Among Fig. 3, described U-shaped shackle 3 is installed with the U-shaped structure of detachable bearing pin for its open end.
Convenience for jib 6 luffings, make soft drawn rope 5 in the luffing work of jib 6, be in relaxation state smoothly all the time, about the U-shaped end of two U-shaped shackles 3, be with the joining shackle 4 same respectively with U-shaped shackle 3, the two ends, the left and right sides of soft drawn rope 5 are enclosed within respectively on the joining shackle 4;
When rupturing in order to break down at luffing steel rope 7, make jib 6 be in the pulsation-free state all the time and damage does not take place to turn round partially with certain width, described soft drawn rope 5 is two that are oppositely arranged, the two ends of soft drawn rope 5 lie in respectively on two side positions of Width separately of Shears 1 top and jib 6 cantilever ends 6.1.
Claims (3)
1. safety line used in crane cantilever jib is characterized in that: the top of one-armed cantilevered span winch top Shears, be positioned at the side that Shears is installed jib, along the length direction of jib shackle be installed; On the cantilever end top of jib, corresponding with the shackle on the jib same shackle is installed, the two ends of soft drawn rope are connected to two cooresponding unloading and buckle.
2. safety line used in crane cantilever jib as claimed in claim 1, it is characterized in that: the connection mode at described soft drawn rope two ends is, at the U-shaped end of two U-shaped shackles, be with respectively U-shaped relatively, with the same joining shackle of U-shaped shackle, the two ends of soft drawn rope are enclosed within on the joining shackle respectively.
3. safety line used in crane cantilever jib as claimed in claim 1 or 2, it is characterized in that: described soft drawn rope, it is two that between the cantilever end of the top of Shears and jib, are oppositely arranged, soft drawn rope two ends lie in Shears top and jib cantilever end respectively separately on two side positions of Width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202259316U CN201473238U (en) | 2009-09-04 | 2009-09-04 | Safety cable for cantilever arm frame of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202259316U CN201473238U (en) | 2009-09-04 | 2009-09-04 | Safety cable for cantilever arm frame of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201473238U true CN201473238U (en) | 2010-05-19 |
Family
ID=42409482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202259316U Expired - Fee Related CN201473238U (en) | 2009-09-04 | 2009-09-04 | Safety cable for cantilever arm frame of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201473238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910713A (en) * | 2018-08-28 | 2018-11-30 | 盐田国际集装箱码头有限公司 | A kind of drag-line protective net for preventing container from sliding |
-
2009
- 2009-09-04 CN CN2009202259316U patent/CN201473238U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910713A (en) * | 2018-08-28 | 2018-11-30 | 盐田国际集装箱码头有限公司 | A kind of drag-line protective net for preventing container from sliding |
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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: 20100904 |