CN102530757B - Wire-rope/pulley component and crane - Google Patents
Wire-rope/pulley component and crane Download PDFInfo
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- CN102530757B CN102530757B CN201210055523.7A CN201210055523A CN102530757B CN 102530757 B CN102530757 B CN 102530757B CN 201210055523 A CN201210055523 A CN 201210055523A CN 102530757 B CN102530757 B CN 102530757B
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Abstract
The invention discloses a wire-rope/pulley component which comprises a first pulley block, a second pulley block and a wire rope passing through the first and the second pulley blocks, wherein the wire rope passes alternately through individual pulleys in the first and the second pulley blocks, and the head end and the tail end of the wire rope are positioned on the same side of a pulley shaft. The interference between the wire rope of the wire-rope/pulley component and a lifting hook side plate is eliminated, so that the service life of the wire rope is increased and thus the safety and economy are significantly improved. The invention also discloses a crane provided with the wire-rope/pulley component.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly the wire-rope/pulley component of hoisting crane.The invention still further relates to the hoisting crane being provided with described wire-rope/pulley component.
Background technology
Lifting mechanism is one of main actuating unit of hoisting crane, in order to realize the dipping and heaving of weight, lifting mechanism is made up of reel, reductor, drg, power-transfer clutch, wire rope pulley group and lifting hook etc. usually, in the working process of hoisting crane, power passes to steel rope and lifting hook by primary mover through lifting mechanism, and realizes the function of vertical-lift within the specific limits and horizontal carrying heavy goods by the amplitude and the elevation angle changing crane arm.
Along with the development of hoister in large tonnage, its load-carrying ability is more and more stronger, and lifting hook is stressed also increasing, and for reducing the requirement to hoisting rope system, wire-rope/pulley component often adopts many multiplying powers wire rope handling method.
Please refer to Fig. 1, Fig. 1 is the structural representation of the wire-rope/pulley component adopting traditional order wire rope handling method.
As shown in the figure, first steel rope 1 stretches out from cable drum 2, after the leading sheave 3 of crane arm head, successively through each pulley on the second assembly pulley 5 on the first assembly pulley 4 of crane arm head and lifting hook.
The pulley defined on the first assembly pulley 4 is followed successively by pulley A, B, C... from right to left, pulley on second assembly pulley 5 is followed successively by pulley a, b, c... from right to left, then the wire rope handling order of order wire rope handling method is: first steel rope 1 passes pulley A from right side, afterwards successively through pulley a, B, b, C, c..., on the left of the sheave shaft being finally fixed on the first assembly pulley 4 or the second assembly pulley 5.
According to design needs, a kind of situation is also had to be that steel rope 1 penetrates from the left side of the first assembly pulley 4, on the right side of the sheave shaft being finally fixed on the first assembly pulley 4 or the second assembly pulley 5.
Please refer to Fig. 2, the schematic diagram that the steel rope that Fig. 2 is wire-rope/pulley component shown in Fig. 1 is interferenceed with lifting hook side plate.
In traditional order wire rope handling method, steel rope 1 initiating terminal and end are distributed in the both sides of sheave shaft, because there is friction drag between steel rope 1 and pulley, the discontinuity of steel rope 1 initiating terminal and end can be caused, and steel rope 1 initiating terminal and end are distributed in the both sides of sheave shaft 6, the stressed also inconsistent of lifting hook 7 top sheave axle two ends is conducted to by the second assembly pulley 5, and then cause sheave shaft to tilt, the side plate 8 showing as lifting hook 7 intuitively tilts, and steel rope 1 is still vertical state, steel rope 1 is interfered with the side plate 8 of lifting hook, exacerbate the wearing and tearing of steel rope 1, reduce the service life of steel rope 1, cause safety and economy poor.
Therefore, how to prevent steel rope from interferenceing with lifting hook side plate, thus extend the service life of steel rope, improving safety and economy, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
The first object of the present invention is to provide a kind of wire-rope/pulley component.The steel rope of this pulley assembly can be avoided interferenceing with lifting hook side plate, thus extends the service life of steel rope, and safety and economy are significantly improved.
The second object of the present invention is to provide a kind of hoisting crane being provided with described wire-rope/pulley component.
In order to realize above-mentioned first object, the invention provides a kind of wire-rope/pulley component, comprise the first assembly pulley, the sliding group of the second pulley and be threaded onto the steel rope of described first assembly pulley and the second assembly pulley, each pulley of described first assembly pulley and the second assembly pulley is passed at described steel rope interval, and its initiating terminal and end are positioned at the same side of sheave shaft.
Preferably, described steel rope from sheave shaft first end to the second end successively through the pulley of even number position on the pulley of odd positions described first assembly pulley and described second assembly pulley, and from the second end of sheave shaft to first end successively through the pulley of even number position on the pulley of odd positions described second assembly pulley and described first assembly pulley.
Preferably, described steel rope from sheave shaft first end to the second end successively through the pulley of odd positions on the pulley of even number position described first assembly pulley and described second assembly pulley, and from the second end of sheave shaft to first end successively through the pulley of odd positions on the pulley of even number position described second assembly pulley and described first assembly pulley.
Preferably, the first end of described sheave shaft is left end, the second end is right-hand member.
Preferably, the first end of described sheave shaft is right-hand member, the second end is left end
Preferably, the end of described steel rope is fixed on the sheave shaft of described first assembly pulley or the second assembly pulley.
Preferably, the pulley quantity of described first assembly pulley and the second assembly pulley is equal.
Preferably, the sheave shaft of described first assembly pulley and the second assembly pulley is parallel to each other.
For realizing above-mentioned second object, the invention provides a kind of hoisting crane, comprise cable drum, leading sheave, wire-rope/pulley component and lifting hook, be wound in described wire-rope/pulley component after leading sheave described in the steel rope pile warp of described cable drum, described wire-rope/pulley component is the wire-rope/pulley component described in above-mentioned any one.
Preferably, the crane arm head of described hoisting crane is located at by described first assembly pulley, and described lifting hook is located at by described second assembly pulley.
Wire-rope/pulley component provided by the present invention, comprise the first assembly pulley, the sliding group of the second pulley and be threaded onto the steel rope of described first assembly pulley and the second assembly pulley, each pulley of described first assembly pulley and the second assembly pulley is passed at described steel rope interval, and its initiating terminal and end are positioned at the same side of sheave shaft.Because steel rope interval is through each pulley on described first assembly pulley and the second assembly pulley, and steel rope initiating terminal and end are distributed in the same side of sheave shaft, so conduct to the stressed basically identical of the second assembly pulley two ends, there will not be sheave shaft tilt phenomenon, show as lifting hook side plate intuitively and keep near vertical state, also there will not be the phenomenon that steel rope and lifting hook side plate are interfered, correspondingly improve the service life of steel rope, thus safety and economy are significantly improved.
Hoisting crane provided by the present invention is provided with above-mentioned wire-rope/pulley component, and because above-mentioned wire-rope/pulley component has above-mentioned technique effect, the hoisting crane being provided with this wire-rope/pulley component also should possess corresponding technique effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wire-rope/pulley component adopting traditional order wire rope handling method;
The schematic diagram that the steel rope that Fig. 2 is wire-rope/pulley component shown in Fig. 1 is interferenceed with lifting hook side plate;
Fig. 3 is the structural representation of a kind of detailed description of the invention of wire-rope/pulley component provided by the present invention.
In Fig. 1, Fig. 2:
1. steel rope 2. cable drum 3. leading sheave 4. first assembly pulley 5. second assembly pulley 6. sheave shaft 7. lifting hook 8. side plate
In Fig. 3:
10. steel rope 11. first assembly pulley 12. second pulley sliding group 13. sheave shaft 14. cable drum 15. leading sheave
Detailed description of the invention
Core of the present invention is to provide a kind of wire-rope/pulley component.The steel rope of this pulley assembly can be avoided interferenceing with lifting hook side plate, thus extends the service life of steel rope, and safety and economy are significantly improved.
Another core of the present invention is to provide a kind of hoisting crane being provided with described wire-rope/pulley component.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 3, Fig. 3 is the structural representation of a kind of detailed description of the invention of wire-rope/pulley component provided by the present invention.
In a kind of detailed description of the invention, wire-rope/pulley component provided by the invention, is formed primarily of the sliding group 12 of the first assembly pulley 11, second pulley and the parts such as steel rope 10 that are threaded onto the first assembly pulley 11 and the second assembly pulley 12.
The sheave shaft 13 of the first assembly pulley 11 and the second assembly pulley 12 is parallel to each other, and pulley quantity is equal, is 13.Certainly, the pulley quantity of the first assembly pulley 11 and the second assembly pulley 12 also can be unequal.After the steel rope 10 pile warp leading sheave 15 that cable drum 14 is drawn, each pulley of the first assembly pulley 11 and the second assembly pulley 12 is passed at interval, and its initiating terminal and end are positioned at the same side of sheave shaft 13.
As shown in the figure, steel rope 10 from sheave shaft 13 first end to the second end successively through the pulley of even number position on the pulley of odd positions the first assembly pulley 11 and the second assembly pulley 12, and from the second end of sheave shaft 13 to first end successively through the pulley of even number position on the pulley of odd positions the second assembly pulley 12 and the first assembly pulley 11.
Its concrete wire rope handling process is as follows:
The pulley defined on the first assembly pulley 11 is followed successively by pulley A, B, C... from right to left, pulley on second assembly pulley 12 is followed successively by pulley a, b, c... from right to left, then the wire rope handling order of interval wire rope handling method is that first steel rope passes pulley A from right side, afterwards successively through pulley b, C, d, E, f..., wait wearing to high order end, reversing sense installs in the same way again, and the end of steel rope 10 is finally fixed on the right side of the first assembly pulley 11.
Certainly, steel rope 10 also can from sheave shaft 13 first end to the second end successively through the pulley of odd positions on the pulley of even number position the first assembly pulley 11 and the second assembly pulley 12, and from the second end of sheave shaft 13 to first end successively through the pulley of odd positions on the pulley of even number position the second assembly pulley 12 and the first assembly pulley 11.In addition, by increasing and decreasing the quantity of pulley, the end of steel rope 10 finally also can be fixed on the right side of the second assembly pulley 12.
According to design needs, also have a kind of situation to be that steel rope 10 penetrates from the left side of the first assembly pulley 11, pass from the left side of the first assembly pulley 11 or the second assembly pulley 12.
After adopting above-mentioned interval wire rope handling mode, although the power that steel rope 10 is applied on pulley constantly reduces, but, because from assembly pulley one end to often wearing an a pulley all reserved pulley during other end wire rope handling, the pulley stayed in advance is passed successively more afterwards from the other end, stressed approximately equal on so every adjacent two pulleys, more balance so entirety is stressed, conduct to the stressed basically identical of the second assembly pulley 12 two ends, there will not be sheave shaft tilt phenomenon, show as lifting hook side plate intuitively and keep near vertical state, also there will not be the phenomenon that steel rope 10 and lifting hook side plate are interfered, correspondingly improve the service life of steel rope 10, thus safety and economy are significantly improved.
Above-mentioned wire-rope/pulley component is only a preferred embodiment of the present invention, is specifically not limited thereto, and can make pointed adjustment according to actual needs on this basis, thus obtain different embodiments.Such as, the pulley quantity on the first assembly pulley 11 and the second assembly pulley 12 can increase further or reduce etc.Because mode in the cards is more, just casehistory no longer one by one here.
Except above-mentioned wire-rope/pulley component, the present invention also provides a kind of hoisting crane, comprise cable drum, leading sheave, wire-rope/pulley component and lifting hook, described wire-rope/pulley component is wound in after leading sheave described in the steel rope pile warp of described cable drum, described wire-rope/pulley component is wire-rope/pulley component mentioned above, all the other structures please refer to prior art, repeat no more herein.
Particularly, the crane arm head of described hoisting crane is located at by described first assembly pulley, and described lifting hook is located at by described second assembly pulley.
Above wire-rope/pulley component provided by the present invention and hoisting crane are described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands core concept of the present invention for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (8)
1. a wire-rope/pulley component, comprise the first assembly pulley, the sliding group of the second pulley and be threaded onto the steel rope of described first assembly pulley and the second assembly pulley, it is characterized in that, described steel rope be uniformly distributed and interval through each pulley of described first assembly pulley and the second assembly pulley, its initiating terminal and end are positioned at the same side of sheave shaft;
Described steel rope from sheave shaft first end to the second end successively through the pulley of even number position on the pulley of odd positions described first assembly pulley and described second assembly pulley, and from the second end of sheave shaft to first end successively through the pulley of even number position on the pulley of odd positions described second assembly pulley and described first assembly pulley;
Or, described steel rope from sheave shaft first end to the second end successively through the pulley of odd positions on the pulley of even number position described first assembly pulley and described second assembly pulley, and from the second end of sheave shaft to first end successively through the pulley of odd positions on the pulley of even number position described second assembly pulley and described first assembly pulley.
2. wire-rope/pulley component according to claim 1, is characterized in that, the first end of described sheave shaft is left end, the second end is right-hand member.
3. wire-rope/pulley component according to claim 1, is characterized in that, the first end of described sheave shaft is right-hand member, the second end is left end.
4. wire-rope/pulley component according to claim 1, is characterized in that, the end of described steel rope is fixed on the sheave shaft of described first assembly pulley or the second assembly pulley.
5. wire-rope/pulley component according to claim 1 and 2, is characterized in that, the pulley quantity of described first assembly pulley and the second assembly pulley is equal.
6. wire-rope/pulley component according to claim 1 and 2, is characterized in that, the sheave shaft of described first assembly pulley and the second assembly pulley is parallel to each other.
7. a hoisting crane, comprise cable drum, leading sheave, wire-rope/pulley component and lifting hook, described wire-rope/pulley component is wound in after leading sheave described in the steel rope pile warp of described cable drum, it is characterized in that, described wire-rope/pulley component is the wire-rope/pulley component described in any one of the claims 1 to 6.
8. hoisting crane according to claim 7, is characterized in that, the crane arm head of described hoisting crane is located at by described first assembly pulley, and described lifting hook is located at by described second assembly pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210055523.7A CN102530757B (en) | 2012-03-05 | 2012-03-05 | Wire-rope/pulley component and crane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210055523.7A CN102530757B (en) | 2012-03-05 | 2012-03-05 | Wire-rope/pulley component and crane |
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| Publication Number | Publication Date |
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| CN102530757A CN102530757A (en) | 2012-07-04 |
| CN102530757B true CN102530757B (en) | 2015-06-17 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264971A (en) * | 2013-06-18 | 2013-08-28 | 山东丰汇设备技术有限公司 | Expansion driving type hoisting and lifting mechanism |
| CN103318751B (en) * | 2013-07-18 | 2014-12-10 | 徐州重型机械有限公司 | Lifting hook and crane |
| CN103395702B (en) * | 2013-08-19 | 2016-08-10 | 中联重科股份有限公司 | Hoisting mechanism and crane with same |
| CN106379818B (en) * | 2015-05-20 | 2019-01-01 | 鲁霄钢 | A kind of jib crane optimizing drum support |
| CN109553014B (en) * | 2018-12-13 | 2020-12-08 | 中联重科股份有限公司 | Hoisting device and hoisting equipment with same |
| CN110974616A (en) * | 2019-12-12 | 2020-04-10 | 上海理工大学 | Lower limb rehabilitation equipment suitable for patient with spinal cord injury |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202542765U (en) * | 2012-03-05 | 2012-11-21 | 徐州重型机械有限公司 | Steel wire rope pulley assembly and crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2823825B2 (en) * | 1995-11-21 | 1998-11-11 | 住友建機株式会社 | Crane boom hoist |
| JP3054105B2 (en) * | 1997-06-05 | 2000-06-19 | 住友建機株式会社 | Crane rope hoisting and lowering device |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202542765U (en) * | 2012-03-05 | 2012-11-21 | 徐州重型机械有限公司 | Steel wire rope pulley assembly and crane |
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