CN221093491U - Auxiliary lifting hook protection device of heavy crane - Google Patents
Auxiliary lifting hook protection device of heavy crane Download PDFInfo
- Publication number
- CN221093491U CN221093491U CN202323247702.3U CN202323247702U CN221093491U CN 221093491 U CN221093491 U CN 221093491U CN 202323247702 U CN202323247702 U CN 202323247702U CN 221093491 U CN221093491 U CN 221093491U
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- Prior art keywords
- lifting hook
- pulley
- protection
- guard
- lifting
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- 230000001681 protective effect Effects 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 230000001012 protector Effects 0.000 claims 1
- 230000000670 limiting effect Effects 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 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
- 239000000725 suspension Substances 0.000 description 1
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- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model relates to the technical field of marine equipment, and provides a heavy crane auxiliary lifting hook protection device, a lifting hook mechanism and a protection mechanism arranged above the lifting hook mechanism, wherein the protection mechanism is arranged on an arm support through a mounting ring and plays a limiting role on the lifting hook mechanism; meanwhile, the protective cover is provided with a through hole for penetrating the steel wire rope on the pulley, the through hole is provided with a bar shape or an L shape, and the bar-shaped through hole limits the swinging of the lifting rope, so that the swinging amplitude of the hook body is greatly reduced, and the wind resistance and the safety of the lifting hook structure are improved; the L-shaped through holes enable the lifting rope to have the adjusting capability after being wound and knotted; the inside safety plate that is provided with of protection casing, when lifting hook mechanism's yoke plate rises, reaches the safety plate position after, reaches limit height promptly, and the safety plate has reduced the damage of yoke plate to the protection casing.
Description
Technical Field
The utility model relates to the technical field of sea equipment, in particular to a heavy crane auxiliary lifting hook protection device.
Background
Heavy cranes such as marine cranes, offshore wind power installation cranes and the like play an important role in the installation and operation of ocean platforms, are usually installed on offshore wind power crane ships, and are required to be provided with a main lifting hook with large dead weight and a secondary lifting hook with smaller relative mass according to the use requirements of different loads and lifting heights.
In order to minimize the complexity of deck layout, the boom may extend out of the ship's side when the crane boom is placed. Under the normal condition, when the arm support is placed, the auxiliary lifting hook can be lifted to a position close to the head of the arm support, most of the prior art is not provided with a limiting mechanism of the lifting hook, and the stay position of the lifting hook after the lifting process can only be judged by experience of an operator, so that the condition that the arm support is damaged due to overhigh lifting height of the lifting hook often occurs; in addition, in severe environments, the lifting hook is affected by the movement of the ship body to shake, and possibly impacts the arm support structure or causes damage caused by excessive torsion of the steel wire rope of the lifting hook.
Disclosure of utility model
In order to solve the problems in the background technology, the utility model provides a heavy crane auxiliary lifting hook protection device, which comprises a lifting hook mechanism and a protection mechanism arranged above the lifting hook mechanism, wherein:
The lifting hook mechanism comprises a pulley shaft, pulleys arranged on the pulley shaft, guard plates arranged at two ends of the pulley shaft, yoke plates arranged on the inner side of the shaft guard, and a hook body connected to the pulley shaft;
The upper plate of the yoke plate is higher than the pulley and the guard plate;
The protection mechanism comprises a protection cover arranged above the pulley, a support frame connected above the protection cover, and a mounting ring arranged at the end part of the support frame and used for connecting the support frame with the arm support;
the protective cover is provided with a through hole for passing through a steel wire rope on the pulley.
In a preferred scheme, the protective cover is of an eave type structure.
In the preferred scheme, L-shaped through holes and strip-shaped through holes are respectively formed in two sides of the eave-shaped structure.
In a preferred embodiment, the top of the yoke plate is shaped to conform to the shape of the top of the shield.
In a preferred embodiment, a safety plate is provided inside the protective cover.
The beneficial effects achieved by the utility model are as follows:
According to the utility model, the protection device is arranged for the auxiliary lifting hook of the heavy crane, the protection mechanism is arranged on the arm support through the mounting ring, so that the limiting effect on the lifting hook mechanism is realized, and after the installation of the protection mechanism is completed, the lifting hook can be lifted to a designated stay position each time, so that the damage to the arm support is avoided; meanwhile, the protective cover is provided with a through hole for penetrating the steel wire rope on the pulley, the through hole is provided with a bar shape or an L shape, and the bar-shaped through hole limits the swinging of the lifting rope, so that the swinging amplitude of the hook body is greatly reduced, and the wind resistance and the safety of the lifting hook structure are improved; the L-shaped through holes enable the lifting rope to have the adjusting capability after being wound and knotted; the inside safety plate that is provided with of protection casing, when lifting hook mechanism's yoke plate rises, reaches the safety plate position after, reaches limit height promptly, and the safety plate has reduced the damage of yoke plate to the protection casing.
Drawings
FIG. 1 is a schematic diagram of a front view of a hook mechanism and a guard mechanism;
FIG. 2 is a schematic structural view of the guard mechanism;
FIG. 3 is a schematic structural view of a hook mechanism;
FIG. 4 is a schematic view of a bottom view of the guard mechanism;
Fig. 5 is a schematic view of the structure of the hook mechanism and the guard mechanism from the rear view.
Reference numerals in the drawings:
11. A protective cover; 111. an L-shaped through hole; 112. a bar-shaped through hole; 113. a security plate; 12. a support frame; 13. a mounting ring; 21. a hanging rope; 22. a guard board; 23. a yoke plate; 24. a pulley; 25. a hook body.
Detailed Description
The embodiments of the present utility model will be described more fully hereinafter with reference to the accompanying drawings, in which the embodiments of the present utility model are shown by way of illustration only, and the utility model is not limited to the embodiments of the present utility model, but other embodiments of the present utility model will be apparent to those skilled in the art without making any inventive effort.
Referring to fig. 1-5, the utility model provides a heavy crane auxiliary hook protection device, which comprises a hook mechanism and a protection mechanism arranged above the hook mechanism, wherein the hook mechanism comprises a pulley 24 shaft, a pulley 24 arranged on the pulley 24 shaft, guard plates 22 arranged at two ends of the pulley 24 shaft, a yoke plate 23 arranged at the inner side of the shaft guard, and a hook body 25 connected to the pulley 24 shaft; the upper plate of the yoke plate 23 is higher than the pulley 24 and the guard plate 22.
The protection mechanism comprises a protection cover 11 arranged above the pulley 24, a support frame 12 connected above the protection cover 11, and a mounting ring 13 arranged at the end part of the support frame 12 and used for connecting the support frame 12 with the arm support; the shield 11 is preferably of an eave type structure, and the shape of the top of the yoke plate 23 is identical to the shape of the top of the shield 11. The shield 11 is provided with a through hole for passing through the steel wire rope on the pulley 24, and two sides of the eave structure are preferably provided with an L-shaped through hole 111 and a strip-shaped through hole 112 respectively. The safety plate 113 is arranged in the protective cover 11, when the yoke plate 23 of the lifting hook mechanism ascends and reaches the position of the safety plate 113, namely reaches the limit height, the safety plate 113 reduces the damage of the yoke plate 23 to the protective cover 11.
When the utility model is used, the protection device is arranged on the arm support through the mounting ring 13, the lifting rope 21 passes through the through hole of the protection cover 11 to be connected with the winch on the suspension arm, the lifting hook mechanism ascends along with the lifting rope 21, and when the yoke plate 23 ascends, the position of the safety plate 113 is reached, namely the stop position is reached. The eave type protective cover 11 can effectively prevent rain, snow and the like from damaging the lifting hook mechanism, the strip-shaped through holes of the protective cover 11 limit the swinging of the lifting rope 21, so that the swinging amplitude of the hook body 25 is greatly reduced, and the wind resistance and the safety of the lifting hook structure are improved; the L-shaped through hole 111 is arranged to enable the lifting rope 21 to be wound and knotted and then has the adjustment capability.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (5)
1. The utility model provides a vice lifting hook protector of heavy hoist, its characterized in that includes lifting hook mechanism and installs the protection machanism in lifting hook mechanism top, wherein:
The lifting hook mechanism comprises a pulley (24) shaft, a pulley (24) arranged on the pulley (24) shaft, guard plates (22) arranged at two ends of the pulley (24) shaft, a yoke plate (23) arranged on the inner side of the shaft guard, and a hook body (25) connected to the pulley (24) shaft;
the upper plate of the yoke plate (23) is higher than the pulley (24) and the guard plate (22);
The protection mechanism comprises a protection cover (11) arranged above the pulley (24), a support frame (12) connected above the protection cover (11), and a mounting ring (13) arranged at the end part of the support frame (12) and used for connecting the support frame (12) with the arm support;
The protective cover (11) is provided with a through hole for passing through a steel wire rope on the pulley (24).
2. The heavy duty crane secondary hook guard of claim 1, wherein: the protective cover (11) is of an eave type structure.
3. The heavy duty crane secondary hook guard of claim 2, wherein: l-shaped through holes (111) and strip-shaped through holes (112) are respectively formed in two sides of the eave-shaped structure.
4. The heavy duty crane secondary hook guard of claim 2, wherein: the shape of the top of the yoke plate (23) is consistent with the shape of the top of the protective cover (11).
5. The heavy duty crane secondary hook guard of claim 1, wherein: a safety plate (113) is arranged inside the protective cover (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323247702.3U CN221093491U (en) | 2023-11-30 | 2023-11-30 | Auxiliary lifting hook protection device of heavy crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323247702.3U CN221093491U (en) | 2023-11-30 | 2023-11-30 | Auxiliary lifting hook protection device of heavy crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221093491U true CN221093491U (en) | 2024-06-07 |
Family
ID=91328491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323247702.3U Active CN221093491U (en) | 2023-11-30 | 2023-11-30 | Auxiliary lifting hook protection device of heavy crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221093491U (en) |
-
2023
- 2023-11-30 CN CN202323247702.3U patent/CN221093491U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |