CN201296612Y - Steel wire switch wind device - Google Patents
Steel wire switch wind device Download PDFInfo
- Publication number
- CN201296612Y CN201296612Y CNU2008202181143U CN200820218114U CN201296612Y CN 201296612 Y CN201296612 Y CN 201296612Y CN U2008202181143 U CNU2008202181143 U CN U2008202181143U CN 200820218114 U CN200820218114 U CN 200820218114U CN 201296612 Y CN201296612 Y CN 201296612Y
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- CN
- China
- Prior art keywords
- steel wire
- steel rope
- compensation
- luffing
- layer
- 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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Abstract
The utility model relates to a luffing mechanism and a lifting compensation mechanism of a single arm crane by using steel wire for changing amplitude, in particular a device that can realize the steel wire switch winding on a roller which belongs to the crane equipment technique field. The device has characteristics that the device is composed of the roller, a reverse wheel, a changing amplitude steel wire and a compensation steel wire, the changing amplitude steel wire and the compensation steel wire are drove by the same roller, the compensation steel wire winds with single layer, the changing amplitude steel wire winds with two layers, the reverse wheel changes the winding direction between two changing amplitude steel wires for making the winding direction of two changing amplitude steel wires having opposite direction, the winding direction of the compensation steel wire is same with the first layer changing amplitude steel wire, the compensation steel wire winds the first layer of the changing amplitude steel wire and shares the second layer space with the second layer changing amplitude steel wire. The steel wire switch wind device replaces a poly-line roller which solves 'bitten rope' problem of equal-directional dual-layer winding, reduces the roller size and weight, and solves difficult problem for processing the compensation wire when the arm is put down with a simple method.
Description
Technical field
The utility model belongs to the weight-lifting equipment technical field, relates to luffing mechanism and hoisting compensation mechanism that the single armed that adopts rope luffing is erected heavy-duty machine, the particularly a kind of device that can realize that steel rope commutates and twines on reel.
Background technology
Adopt the single armed of rope luffing to erect heavy-duty machine except change the work range of jib with luffing mechanism, also will jib be fallen sometimes with luffing mechanism.The jib that fell, the Rong Shengliang that need to increase length of steel wire rope, increases reel.The method of the increase rope capacity that adopts has two kinds at present, and a kind of is to adopt winding of single layer, increases the diameter and the length of reel, also will increase installing space but do like this except the weight of meeting increase reel; Another kind is to adopt double-deck in the same way the winding, if adopt spiral to twine, then two-layer steel rope hand of spiral is opposite up and down, produce bigger local stress at point of crossing, produce " stinging rope " phenomenon in the position that goes out (going into) rope, reduced the service life of steel rope, if adopt the broken line slot reel, then the manufacturing cost of reel can increase considerably.
Single armed is erected heavy-duty machine in amplitude changing process, for the horizontality of the suspension centre that guarantees to hoist, need recompense to the length of hoist rope, the compensation steel rope can with the shared reel of luffing steel rope, also can be wrapped in separately on the another one reel.The compensation steel rope only works when the work luffing, and the order of folding and unfolding rope is opposite with the luffing steel rope.The luffing steel rope was emitted from reel and is compensated steel rope and then be recovered on the reel when amplitude increased, and luffing steel rope working portion is all emitted a working portion that compensates the silk rope and then all regained during amplitude peak; Luffing steel rope withdrawal compensation steel rope was then emitted when amplitude reduced, and the whole working portions of regaining the compensation steel rope of luffing steel rope working portion are then all emitted during minimum radius.The process that jib fell is during from the maximum functional amplitude, but the receipts rope action that this moment must cancellation compensation rope, amplitude-changing drum continues to emit steel rope and jib could be fallen, otherwise suspension hook will be interfered with jib.Common way is: if compensation rope and the shared reel of luffing rope then earlier are recovered to jib the most slightly, pull down the compensation rope, jib was fallen again.But can increase work capacity like this, increase production time, reduction work efficiency that jib fell, the repeated disassembled and assembled steel rope also can bring damage to steel rope.If the compensation steel rope is by other drive mechanism, then need allow this mechanism quit work or change hand of rotation, a lot of but the way that compensation rope driver train is set separately can make cost increase.
Summary of the invention
The purpose of this utility model provides a kind of device that can realize that steel rope commutates and twines on reel, solves the problem that exists in the present rope luffing mechanism.
The technical solution of the utility model is: this device is made up of reel, reverse wheel, luffing steel rope and compensation steel rope, luffing steel rope and compensation steel rope drive with same reel, compensation steel rope winding of single layer, the luffing steel rope divides two-layer winding, change winding direction by reverse wheel between the two-layer luffing steel rope, make the winding direction of two-layer luffing steel rope opposite, the winding direction of compensation steel rope is identical with ground floor luffing steel rope, the compensation steel rope is wrapped on the ground floor of luffing steel rope, with the space of the public second layer of second layer luffing steel rope.Utilization is wrapped in the formed plug helix of ground floor luffing steel rope outside face on the reel, the work grooving of steel rope and second layer luffing steel rope by way of compensation, and the hand of spiral of levels steel rope on reel is identical.
Ground floor luffing steel rope is used for jib was fallen, and second layer luffing steel rope is with the luffing of working.Because the winding direction of hoisting compensation steel rope is opposite with second layer luffing steel rope, be again to drive with same reel, so the order of folding and unfolding rope is opposite with second layer luffing steel rope, in work range, realized compensate function.When the maximum functional amplitude, the working portion of compensation steel rope all has been entangled on the reel, after second layer luffing steel rope has all been put, commutation through reverse wheel makes ground floor luffing steel rope devote oneself to work the reel contrarotation, ground floor luffing steel rope is emitted, the folding and unfolding order of compensation this moment rope also begins identical with the luffing rope, and luffing rope and compensation rope are emitted simultaneously, have realized the function that jib was fallen.
Effect of the present utility model and benefit are: adopt the master screw slot reel, manufacturing cost is well below broken line reel.The hand of spiral of inside and outside two-layer luffing steel rope is identical, ground floor luffing steel rope twines along the master screw groove on the reel, second layer steel rope twines along the plug helix that the ground floor steel rope forms, and has avoided the intersection of two-layer steel rope, the life-span of having improved steel rope.Jib fell in the process, need not pull down the compensation steel rope, had reduced time and work capacity that jib fell, also need not increase independently to compensate the steel rope driver train, had reduced equipment cost.In work luffing scope, the reel moment that the compensation steel rope produces is opposite with the moment direction that the luffing steel rope produces, and has reduced the capacity of luffing mechanism electrical motor, has received good energy-saving effect.
Description of drawings
Fig. 1 is the structural representation of this device.
Fig. 2 is the work luffing, the scheme drawing when amplitude increases.
Fig. 3 is the scheme drawing that is entered luffing rope commutation process by the work luffing.
Fig. 4 is in the luffing rope commutation process, the scheme drawing when the luffing steel rope arm of force is maximum.
Fig. 5 is in the luffing rope commutation process, the scheme drawing when reverse wheel is positioned at vertex.
Fig. 6 is in the luffing rope commutation process, the scheme drawing when the luffing steel rope leaves reverse wheel figure.
Fig. 7 is the reel backward rotation, the scheme drawing the when commutation of luffing rope is finished.
Fig. 8 is the fell scheme drawing of process of jib.
Among the figure: 1 reel, 2 reverse wheels, 3 luffing steel ropes, 4 compensation steel ropes.
The specific embodiment
Below in conjunction with technical scheme and accompanying drawing, be described in detail the specific embodiment of the present utility model.
Utilize this device that jib was fallen by mode of operation, be through three steps:
The first step increases to maximum with the jib work range.
To the direction rotating drum that amplitude increases, the luffing rope discharged, compensated to restrict and regain this moment, saw Fig. 2.
Second step, the commutation of luffing rope.
Be rotated further reel, hand of rotation is constant, and the luffing rope discharges, the compensation rope is regained.Second layer luffing rope breaks away from reel, sees Fig. 3; Be rotated further reel, hand of rotation is constant, and the luffing rope discharges through reverse wheel, and the compensation rope is regained, and sees Fig. 4, Fig. 5;
After the luffing rope left reverse wheel, reel stopped operating, and the compensation rope on the reel has twined and expired at this moment, sees Fig. 6.
The backward rotation reel, luffing rope, compensation rope discharge simultaneously, and luffing rope commutation process finishes, and sees Fig. 7.
In the 3rd step, jib fell.
Continue the backward rotation reel, luffing rope, compensation rope discharge simultaneously, fall on ground until the jib head, see Fig. 8.
Jib is by the process of recovering state to mode of operation of falling, and is opposite with the above-mentioned process of falling.
Claims (1)
1. wire rope reverse twisting device, it is characterized in that by reel (1), reverse wheel (2), luffing steel rope (3) and compensation steel rope (4) are formed, luffing steel rope and compensation steel rope drive with same reel, compensation steel rope winding of single layer, the luffing steel rope divides two-layer winding, change winding direction by reverse wheel between the two-layer luffing steel rope, make the winding direction of two-layer luffing steel rope opposite, the winding direction of compensation steel rope is identical with ground floor luffing steel rope, the compensation steel rope is wrapped on the ground floor of luffing steel rope, with the space of the public second layer of second layer luffing steel rope; Utilization is wrapped in the formed plug helix of ground floor luffing steel rope outside face on the reel, the work grooving of steel rope and second layer luffing steel rope by way of compensation, and the hand of spiral of two-layer up and down steel rope on reel is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202181143U CN201296612Y (en) | 2008-09-17 | 2008-09-17 | Steel wire switch wind device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202181143U CN201296612Y (en) | 2008-09-17 | 2008-09-17 | Steel wire switch wind device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201296612Y true CN201296612Y (en) | 2009-08-26 |
Family
ID=41042583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202181143U Expired - Fee Related CN201296612Y (en) | 2008-09-17 | 2008-09-17 | Steel wire switch wind device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201296612Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323107A (en) * | 2011-08-25 | 2012-01-18 | 中国水产科学研究院东海水产研究所 | Hand-operated sediment collecting device |
-
2008
- 2008-09-17 CN CNU2008202181143U patent/CN201296612Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323107A (en) * | 2011-08-25 | 2012-01-18 | 中国水产科学研究院东海水产研究所 | Hand-operated sediment collecting device |
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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: 20090826 Termination date: 20150917 |
|
| EXPY | Termination of patent right or utility model |