CN215854592U - Large-diameter sling connection protection sling - Google Patents
Large-diameter sling connection protection sling Download PDFInfo
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- CN215854592U CN215854592U CN202121891203.6U CN202121891203U CN215854592U CN 215854592 U CN215854592 U CN 215854592U CN 202121891203 U CN202121891203 U CN 202121891203U CN 215854592 U CN215854592 U CN 215854592U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 81
- 239000010959 steel Substances 0.000 claims abstract description 81
- 210000001503 joint Anatomy 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 8
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a large-diameter sling connection protection sling, which comprises an upper hanging shaft, a main hanging lug plate, a connecting pin shaft and a lower sheath, wherein the main hanging lug plate is welded on the lower side of the upper hanging shaft, so that the size of the main hanging lug plate is greatly reduced, the size is more reasonable and coordinated, the overall weight of the sling is greatly reduced, the lower sheath is eccentrically arranged, the main stress is the connecting pin shaft, and the lower sheath is used for supporting a steel wire rope, so that the occupation of the inner side space can be greatly reduced, and the sling is more compact, more portable, wider in application range and convenient to use; the upper steel wire rope is clamped between the two main lifting lug plates and wound on the upper lifting shaft, when the upper steel wire rope is in butt joint with the steel wire rope for use, the lower protective sleeve is installed and penetrates into the lower steel wire rope, the connecting pin shaft is inserted for fixation, when the upper steel wire rope is required to be connected with the equipment lifting lug for use, the lower steel wire rope is directly connected with the equipment lifting lug through the lower pin shaft, so that the bending radius of the steel wire rope is greatly increased, the stress condition is more reasonable, and the bending damage of the steel wire rope at the joint and the connecting lifting lug is avoided.
Description
Technical Field
The utility model relates to the field of hoisting structures, in particular to a large-diameter sling connection protection sling.
Background
Modern manufacturing is developing towards maximization and integration, various equipment modules are increasingly made, and integral hoisting of equipment also increasingly requires large-diameter steel wire ropes.
However, along with the increase of the diameter of the steel wire rope, the connection part between the steel wire rope and the plate-type lifting lug is in considerable contradiction when being buckled, and the bottom-mounted lifting slings of large-sized pressure vessels and the like are often connected by the buckles in the transportation process. However, the diameters of the pin shaft and the bow part of the shackle are usually small, even the diameter of the bow part of the wide shackle is not large enough, when the steel wire rope is hung on the shackle or the pin shaft, the bending radius of the steel wire rope is not enough, the steel wire rope is seriously bent, and the defects of deformation, strand scattering and the like of the steel wire rope connection part can be caused due to the greatly reduced hoisting capacity. In addition, large-tonnage shackles and the like need special die forging, and the manufacturing cost is high.
First contrast patent CN 201420145430.8 provides heavy marine worker hoist regulator, including otic placode, sleeve pipe and heavy pound board, the otic placode has two, and every otic placode both ends circular arc transition, and the big one end of circular arc radius is fixed with the sleeve pipe, and the one end that the circular arc radius is little is equipped with the through-hole, is equipped with stiffening plate in the sleeve pipe, and the sleeve pipe is connected with wire rope, the through-hole both sides respectively with heavy pound board fixed connection. The utility model has the advantages that: the lifting appliance has the advantages of being simple in structure and convenient to manufacture, fully utilizing the existing lifting appliance, saving the cost for purchasing shackles and steel wire ropes, greatly reducing the stock cycle, solving the problems of the production cycle and the harsh length requirement of the rigging, and being suitable for lifting various large-size and heavy components of maritime workers.
However, the above patents still have the following problems: the hanging shaft penetrates through the centers of the plates, and the two hanging plates occupy the most weight, so that the size and the weight of the hanging tool are greatly increased, the hanging tool is very heavy and inconvenient to use, and the purpose of the hanging tool is more inclined to be used for adjusting the length deviation of the hanging rope instead of replacing a shackle to protect the hanging rope; and the design of a bottom sheath is also lacked, so that the device is not suitable for the working condition of steel wire rope butt joint.
A second comparative patent CN 201320187022.4 provides a detachable steel wire rope sheath, which comprises a support and a sliding cake, wherein the lower part of the support is provided with a connecting hole, the upper part of the support is symmetrically divided into two support plates, the support plates are provided with round holes, a through hole is arranged in the middle of the sliding cake, and the sliding cake is arranged between the two support plates and is movably connected with the support through a pin shaft. By adopting the detachable steel wire rope sheath, the steel wire rope sling is sleeved on the sliding cake instead of being directly sleeved on the pin shaft, and the diameter of the sliding cake is far larger than that of the pin shaft, so that the curvature of the contact part of the steel wire rope sling is reduced, the bending stress of the contact part is reduced, and the service life of the whole steel wire rope sling is prolonged.
However, the above patents still have the following problems: the sheath is similar to the pulley form, according to the diameter of the sheath is 6 times of the diameter of the pulley, the size of the pulley is large, the hanging plate part of the main structure of the pulley is also greatly enlarged, and the structure size of the steel wire rope is protected by the sheath when the diameter angle of the steel wire rope is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a large-diameter sling connection protection sling, and solves the problems that the prior art is large in structural size, heavy in weight, inconvenient to use, prone to being used for adjusting length deviation of slings, lack of design of a bottom sheath and not suitable for working conditions of steel wire rope butt joint.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a protection hoist is connected to major diameter hoist cable, its innovation point lies in: the steel wire rope butt joint device comprises an upper hanging shaft, a main hanging lug plate, a connecting pin shaft and a lower sheath, and is used for realizing butt joint of a steel wire rope or connecting the steel wire rope with an equipment hanging lug;
the steel wire ropes comprise an upper steel wire rope and a lower steel wire rope, the diameters of which are d;
the top of the main lug plate is in an inner arc shape, the bottom of the main lug plate is in an outer arc shape, the length from the top to the bottom of the main lug plate is gradually reduced, and the lower part of the main lug plate is provided with a pin hole;
the upper hanging shaft is of a hollow cylindrical structure with the diameter of D, the upper hanging shaft is horizontally arranged, so that a rotating shaft of the upper hanging shaft is in a horizontal state, the two main hanging lug plates are symmetrically arranged at the bottom of the outer circumferential surface of the upper hanging shaft, the top of each main hanging lug plate is attached to the outer circumferential surface of the upper hanging shaft, an upper steel rope winding area is reserved between the two main hanging lug plates and used for clamping an upper steel rope, and the distance between the two main hanging lug plates is M, wherein D =6D, and M > = D +10 mm;
the lower sheath is of a circular ring structure, and an arc-shaped groove is reserved on the outer circumferential surface of the lower sheath;
when the lower sheath is in butt joint with a steel wire rope for use, the rotating shaft of the lower sheath is arranged in a horizontal state and is arranged between the two main lifting lug plates, and the lower sheath penetrates through the pin hole through the connecting pin shaft and is connected with the inner part of the lower sheath, so that the lower sheath is eccentrically arranged on the connecting bolt, the lower steel wire rope is clamped through the arc-shaped groove, and the distance between the lower sheath and the upper lifting shaft is N, wherein N > =4 x d;
when the connecting pin shaft is connected with the equipment lifting lug for use, the connecting pin shaft penetrates through pin holes of the two main lifting lug plates to be connected through a pin bolt, and the equipment lifting lug is connected through the connecting pin shaft.
Furthermore, the two main lifting lug plates are welded on the upper lifting shaft, the upper part of the lower sheath is connected between the two main lifting lug plates through a pin shaft, the contact area of the upper part of the lower sheath and the steel wire rope is manufactured into an arc-shaped structure, and the radius of the arc-shaped structure is half of d, so that the contact area of the steel wire rope or the equipment lifting lug and the lifting appliance is increased, and the local stress state of the steel wire rope or the equipment lifting lug and the lifting appliance is further improved.
Furthermore, a carrying lifting point is further fixed at the top of the outer circumferential surface of the upper lifting shaft, so that the lifting appliance is convenient to lift.
The utility model has the advantages that:
1) the main lifting lug plate is welded on the lower side of the upper lifting shaft, so that the size of the main lifting lug plate is greatly reduced, the size is more reasonable and coordinated, the whole weight of the lifting appliance is greatly reduced, the lower sheath is eccentrically arranged, namely the connecting pin shaft is connected to the edge of the lower sheath, the main stress is the connecting pin shaft, and the lower sheath is used for supporting the steel wire rope, so that the occupation of the inner side space can be greatly reduced, and the lifting appliance is more compact, more portable, wider in application range and convenient to use.
2) According to the utility model, the upper steel wire rope is clamped between the two main lug plates and wound on the upper hanging shaft, when the steel wire rope is required to be in butt joint with a steel wire rope for use, the lower sheath is installed and penetrates into the lower steel wire rope, the connecting pin shaft is inserted for fixing, and when the steel wire rope is required to be connected with the equipment lifting lug for use, the lower pin shaft is directly used for connecting the equipment lifting lug, so that the bending radius of the steel wire rope is greatly increased, the stress condition is more reasonable, and the bending damage of the steel wire rope at the connecting part and the connecting lifting lug is avoided.
3) In the utility model, the contact areas of the upper part of the lower sheath and the steel wire rope are all made into arc-shaped structures, and the diameters of the arc-shaped structures are half of d, so that the contact area between the steel wire rope or an equipment lifting lug and a lifting appliance is increased, and the local stress state of the steel wire rope or the equipment lifting lug is further improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of the butt joint of a large-diameter sling connection protection sling and a steel wire rope.
Fig. 2 is a schematic diagram of a large diameter sling attachment protection sling according to the present invention in use in connection with equipment lifting eyes.
Wherein: 1. the device comprises a carrying lifting point 2, an upper lifting shaft 3, a main lifting lug plate 4, a connecting pin shaft 5, a lower sheath 6, an upper steel wire rope 7 and a lower steel wire rope.
Detailed Description
The large-diameter sling connection protection sling shown in fig. 1 to 2 comprises an upper lifting shaft 2, a main lifting lug plate 3, a connecting pin shaft 4 and a lower sheath 5, and is used for realizing butt joint of steel wire ropes or connection with equipment lifting lugs.
The steel wire ropes comprise an upper steel wire rope 6 and a lower steel wire rope 7, the diameters of which are d.
The top of main lug plate 3 is interior arc, and the bottom of main lug plate 3 is outer arc shape, and the top of main lug plate 3 is degressive to bottom length, has seted up the pinhole in the lower part of main lug plate 3.
The upper hanging shaft 2 is a hollow cylinder structure with the diameter of 6 d.
The upper hanging shaft 2 is horizontally arranged, so that a rotating shaft of the upper hanging shaft 2 is in a horizontal state, a carrying hanging point 1 is fixed at the top of the outer circumferential surface of the upper hanging shaft 2, the hanging tool is convenient to hang, two main hanging lug plates 3 are symmetrically welded at the bottom of the outer circumferential surface of the upper hanging shaft 2, the top of each main hanging lug plate 3 is attached to the outer circumferential surface of the upper hanging shaft 2, and an upper steel rope winding area is reserved between the two main hanging lug plates 3 and used for clamping an upper steel rope 6.
The distance between two main lug plates 3 is d +11mm, and the welding point between two main lug plates 3 is an arc structure with the diameter of one half d.
The lower sheath 5 is a circular ring structure, and an arc-shaped groove is reserved on the outer circumferential surface of the lower sheath 5.
When the lower sheath 5 is in butt joint with a steel wire rope for use, a rotating shaft of the lower sheath 5 is arranged in a horizontal state and is connected between the two main lug plates 3 through a pin shaft, the contact area between the upper portion of the lower sheath 5 and the steel wire rope between the two main lug plates 3 is an arc-shaped structure with the diameter being one half d, the lower sheath 5 penetrates through the pin hole through the connecting pin shaft 4 and is connected with the inner portion of the lower sheath 5, the lower sheath 5 is eccentrically arranged on the connecting pin, the lower steel wire rope 7 is clamped through the arc-shaped groove, and the distance between the lower sheath 5 and the upper hanging shaft 2 is 4 d.
When the lifting lug is connected with equipment for use, the connecting pin shaft 4 penetrates through the pin holes of the two main lifting lug plates 3 to be connected through a pin bolt, and the equipment lifting lug is connected through the connecting pin shaft 4.
Compared with the first comparison patent, the size of the main lifting lug plate is greatly reduced, and the overall weight is reduced by at least half;
compared with the second comparison patent, the lifting appliance has the advantages that the overall weight can be reduced by at least 1/3, and the application range is wider.
The working principle of this patent:
the upper steel wire rope is clamped between the two main lifting lug plates and wound on the upper lifting shaft, when the upper steel wire rope is in butt joint with the steel wire rope for use, the lower protective sleeve is installed and penetrates into the lower steel wire rope, the connecting pin shaft is inserted for fixation, when the upper steel wire rope is required to be connected with the equipment lifting lug for use, the lower steel wire rope is directly connected with the equipment lifting lug through the lower pin shaft, so that the bending radius of the steel wire rope is greatly increased, the stress condition is more reasonable, and the bending damage of the steel wire rope at the joint and the connecting lifting lug is avoided.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a protection hoist is connected to major diameter hoist cable which characterized in that: the steel wire rope butt joint device comprises an upper hanging shaft, a main hanging lug plate, a connecting pin shaft and a lower sheath, and is used for realizing butt joint of a steel wire rope or connecting the steel wire rope with an equipment hanging lug;
the steel wire ropes comprise an upper steel wire rope and a lower steel wire rope, the diameters of which are d;
the top of the main lug plate is in an inner arc shape, the bottom of the main lug plate is in an outer arc shape, the length from the top to the bottom of the main lug plate is gradually reduced, and the lower part of the main lug plate is provided with a pin hole;
the upper hanging shaft is of a hollow cylindrical structure with the diameter of D, the upper hanging shaft is horizontally arranged, so that a rotating shaft of the upper hanging shaft is in a horizontal state, the two main hanging lug plates are symmetrically arranged at the bottom of the outer circumferential surface of the upper hanging shaft, the top of each main hanging lug plate is attached to the outer circumferential surface of the upper hanging shaft, an upper steel rope winding area is reserved between the two main hanging lug plates and used for clamping an upper steel rope, and the distance between the two main hanging lug plates is M, wherein D =6D, and M > = D +10 mm;
the lower sheath is of a circular ring structure, and an arc-shaped groove is reserved on the outer circumferential surface of the lower sheath;
when the lower sheath is in butt joint with a steel wire rope for use, the rotating shaft of the lower sheath is arranged in a horizontal state and is arranged between the two main lifting lug plates, the lower sheath penetrates through the pin hole through the connecting pin shaft and is connected with the inner part of the lower sheath, the lower sheath is eccentrically arranged on the connecting bolt, then the lower steel wire rope is clamped through the arc-shaped groove, and the distance between the lower sheath and the upper lifting shaft is N, wherein N > =4 x d;
when the connecting pin shaft is connected with the equipment lifting lug for use, the connecting pin shaft penetrates through pin holes of the two main lifting lug plates to be connected through a pin bolt, and the equipment lifting lug is connected through the connecting pin shaft.
2. A large diameter sling connection protection sling according to claim 1, characterised in that: the two main lifting lug plates are welded on the upper lifting shaft, the upper part of the lower sheath is connected between the two main lifting lug plates through a pin shaft, the contact area of the upper part of the lower sheath and the steel wire rope is manufactured into an arc-shaped structure, and the radius of the arc-shaped structure is half of that of d.
3. A large diameter sling connection protection sling according to claim 1, characterised in that: and a carrying lifting point is also fixed at the top of the outer circumferential surface of the upper lifting shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121891203.6U CN215854592U (en) | 2021-08-13 | 2021-08-13 | Large-diameter sling connection protection sling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121891203.6U CN215854592U (en) | 2021-08-13 | 2021-08-13 | Large-diameter sling connection protection sling |
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| Publication Number | Publication Date |
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| CN215854592U true CN215854592U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121891203.6U Active CN215854592U (en) | 2021-08-13 | 2021-08-13 | Large-diameter sling connection protection sling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115626546A (en) * | 2022-10-09 | 2023-01-20 | 中煤新集能源股份有限公司 | Wire Rope Sling |
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2021
- 2021-08-13 CN CN202121891203.6U patent/CN215854592U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115626546A (en) * | 2022-10-09 | 2023-01-20 | 中煤新集能源股份有限公司 | Wire Rope Sling |
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