CN113264444A - Lifting appliance and lifting system for nuclear power station - Google Patents
Lifting appliance and lifting system for nuclear power station Download PDFInfo
- Publication number
- CN113264444A CN113264444A CN202110491066.5A CN202110491066A CN113264444A CN 113264444 A CN113264444 A CN 113264444A CN 202110491066 A CN202110491066 A CN 202110491066A CN 113264444 A CN113264444 A CN 113264444A
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- Prior art keywords
- lifting
- nuclear power
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- state
- rope
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- 238000004519 manufacturing process Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002915 spent fuel radioactive waste Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/14—Slings with hooks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention belongs to the technical field of special tools for nuclear power stations, and particularly relates to a lifting appliance and a lifting system for a nuclear power station, wherein the lifting appliance for the nuclear power station comprises: the connecting base comprises a base main body and at least two lifting lugs connected to the base main body, the base main body is detachably connected with an object, the lifting lugs are arranged in an annular equidistant array, and the circle center of a circle formed by enclosing the lifting lugs is located on a reference straight line; the lifting hook assembly comprises at least two lifting hooks movably connected to lifting equipment and a driving structure installed on the lifting equipment, each lifting hook is switched between a hook lifting state and an unhooking state through relative lifting equipment movement, and the driving structure can drive each lifting hook to move from the hook lifting state to the unhooking state. Based on the invention, the hoisting equipment can be continuously used for other hoisting operations without waiting for the connection between the lifting appliance and the object for the nuclear power station to be released, thereby improving the utilization rate of the hoisting equipment.
Description
Technical Field
The invention belongs to the technical field of special tools for nuclear power stations, and particularly relates to a lifting appliance and a lifting system for a nuclear power station.
Background
After the hoisting equipment hoists objects (such as an inner cover of a spent fuel transport container, a sealing protection ring and the like) to a preset position through the hoisting equipment, if the hoisting equipment needs to be continuously used for other hoisting operation, the connection between the hoisting equipment and the objects needs to be removed, and the objects with larger volumes correspond to the objects, the connection between the hoisting equipment and the objects is more complex, the removal of the hoisting equipment and the objects takes time, namely, after the connection between the hoisting equipment and the objects is removed, the hoisting equipment can be continuously used for other hoisting operation, and the utilization rate of the hoisting equipment is reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a lifting appliance for a nuclear power station, which aims to solve the problem of low utilization rate of lifting equipment.
The invention is realized by the following steps:
a hoist for a nuclear power plant for lifting an object in cooperation with a lifting device, comprising:
the connecting base comprises a base main body and at least two lifting lugs connected to the base main body, the base main body is detachably connected with the object, the lifting lugs are arranged in an annular equidistant array, and the circle center of a circle formed by enclosing the lifting lugs is located on a reference straight line;
the lifting hook assembly comprises at least two lifting hooks movably connected to the lifting equipment and a driving structure installed on the lifting equipment, the lifting hooks are arranged in an annular equidistant array, the circle center of a circle formed by the enclosing of the lifting hooks is located on the reference straight line, the lifting hooks are switched between a hooking state and an unhooking state through moving relative to the lifting equipment, the lifting hooks respectively hook one lifting lug in the hooking state, the lifting hooks are respectively unhooked with the corresponding lifting lugs in the unhooking state, and the driving structure can drive the lifting hooks to move from the hooking state to the unhooking state.
Optionally, the spreader for a nuclear power plant further includes:
the mounting base is provided with at least two connecting parts, the connecting parts are arranged in an annular equal-spacing array, and the center of a circle formed by enclosing the connecting parts is positioned on the reference straight line;
at least two connecting ropes are arranged, one end of each connecting rope is connected to one connecting part, and the other end of each connecting rope is connected to the lifting equipment;
the lifting hook is movably connected to the mounting base, and the driving structure is mounted on the mounting base.
Optionally, the connecting rope is a telescopic connecting rope.
Optionally, the connecting rope comprises a rope main body and a turnbuckle, one end of the turnbuckle is connected with the corresponding connecting part, the other end of the turnbuckle is connected with one end of the rope main body, and the other end of the rope main body is connected to the hoisting equipment.
Optionally, a hanging hole is formed in the side surface of each lifting lug facing the reference straight line;
each lifting hook is rotatably connected to the mounting base and provided with a lifting hook, each lifting hook is respectively inserted into one lifting hole in the hooking state, and each lifting hook is not inserted into the corresponding lifting hole in the unhooking state;
the driving structure is used for driving each lifting hook to rotate relative to the mounting base so as to enable each lifting hook to move from the hooking state to the unhooking state.
Optionally, the driving structure comprises:
at least two driving ropes are arranged, and one end of each driving rope is connected with one lifting hook;
and the driver is arranged on the mounting base, is connected with the other end of each driving rope, and drives the lifting hooks to rotate relative to the mounting base by driving the other ends of the driving ropes so as to enable the lifting hooks to move from the hooking state to the unhooking state.
Optionally, the mounting base is provided with a through hole, and each driving rope passes through the through hole;
the reference line passes through the perforation.
Optionally, the lifting appliance for a nuclear power plant further comprises a resetting structure, and the resetting structure is mounted on the mounting base and is used for driving each lifting hook to move from the unhooking state to the hooking state.
Optionally, each of the connecting parts and the connecting ropes is provided with at least three;
and/or the lifting lugs and the lifting hooks are at least three.
The invention also provides a hoisting system, which comprises hoisting equipment and the hoisting tool for the nuclear power station.
According to the invention, in the use process, firstly, the connecting base is connected to the object, and each lifting hook is in a hook state, at the moment, each lifting hook respectively hooks a lifting lug, secondly, the lifting equipment is used for lifting the object to a preset position through a lifting appliance for the nuclear power plant, finally, the driving structure drives each lifting hook to move from the hook state to the unhook state, each lifting hook is unhooked from the corresponding lifting lug, at the moment, the connecting base is disconnected from the lifting hook assembly, therefore, the lifting equipment can continue to use the lifting equipment for other lifting operations without waiting for the disconnection between the lifting appliance for the nuclear power plant and the object, and the utilization rate of the lifting equipment is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a cross-sectional view of a spreader for a nuclear power plant according to an embodiment of the present invention in a use state, in which a hook is in a hooking state;
fig. 2 is a top view of a mounting base provided by an embodiment of the present invention.
The reference numbers illustrate:
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, an embodiment of the present invention provides a lifting tool 100 for a nuclear power plant, which is used to cooperate with a lifting apparatus 200 to lift an object 300, wherein the object 300 may be an inner lid of a spent fuel transport container, a sealing protection ring, or the like.
Specifically, the hanger 100 for a nuclear power plant includes a connection base 110 and a hook assembly 120.
The connection base 110 includes a base body 111 and at least two lifting lugs 112 connected to the base body 111. The base main body 111 is detachably connected with the object 300, and the connection between the base main body 111 and the object 300 is selected according to actual conditions, specifically, the base main body 111 and the object 300 are not loosened when the object 300 is lifted, and the base main body 111 and the object 300 can be connected through bolts. Each lifting lug 112 is arranged in an annular equal-interval array, the center of a circle formed by enclosing each lifting lug 112 is located on a reference straight line, wherein each lifting lug 112 can be connected to the upper side of the connecting base 110 or connected to the peripheral side of the connecting base 110. In the embodiment of the present invention, the connecting base 110 is annular, and the central axes coincide with each other with reference to a straight line, so that the object 300 may be located under the connecting base 110, or may be sleeved with the connecting base 110, which is beneficial to improving the versatility of the connecting base 110.
The lifting hook assembly 120 comprises at least two lifting hooks 121 movably connected to the lifting equipment 200 and a driving structure 122 installed on the lifting equipment 200, the lifting hooks 121 are arranged in an annular equal-interval array, the center of a circle formed by enclosing the lifting hooks 121 is located on a reference straight line, the lifting hooks 121 are switched between a lifting state and an unhooking state through moving relative to the lifting equipment 200, the lifting hooks 121 respectively lift a lifting lug 112 in the lifting state, the lifting hooks 121 are respectively unhooked from the corresponding lifting lugs 112 in the unhooking state, and the driving structure 122 can drive the lifting hooks 121 to move from the lifting state to the unhooking state.
According to the embodiment of the invention, in the using process, firstly, the connecting base 110 is connected to the object 300, and each lifting hook 121 is in the hooking state, at this time, each lifting hook 121 respectively hooks a lifting lug 112, secondly, the lifting device 200 is used for lifting the object 300 to a predetermined position by the lifting device 100 for the nuclear power plant, finally, the driving structure 122 drives each lifting hook 121 to move from the hooking state to the unhooking state, each lifting hook 121 is respectively unhooked from the corresponding lifting lug 112, at this time, the connecting base 110 is disconnected from the lifting hook assembly 120, and therefore, the lifting device 200 does not need to wait for the disconnection between the lifting device 100 for the nuclear power plant and the object 300 to continue to use the lifting device 200 for other lifting operations, and therefore, the utilization rate of the lifting device 200 is improved.
After the connection base 110 and the hook assembly 120 are disconnected, the lifting apparatus 200 may perform the next lifting operation with the hook assembly 120 or without the hook assembly 120.
In the present invention, at least three lifting lugs 112 and lifting hooks 121 are provided.
Preferably, there are three lifting lugs 112 and three lifting hooks 121, so that the number of the lifting lugs 112 and the lifting hooks 121 can be minimized under the condition that the connection stability between the connection base 110 and the lifting hook assembly 120 is maximized, which is beneficial to reducing the production and manufacturing cost.
Referring to fig. 1 and 2, in an embodiment of the present invention, a spreader 100 for a nuclear power plant further includes a mounting base 130 and at least two connecting ropes 140.
Specifically, the mounting base 130 has at least two connecting portions, each connecting portion is arranged in an annular equal-spacing array, and the center of a circle formed by enclosing of each connecting portion is located on a reference straight line;
one end of each connecting rope 140 is connected to a connecting part, and the other end of each connecting rope 140 is connected to the lifting equipment 200;
wherein, the hook 121 is movably connected to the mounting base 130, and the driving structure 122 is mounted on the mounting base 130.
Based on the structural design, the distance between the lifting force application point of the lifting equipment 200 and the object 300 can be increased, and the universality of the lifting appliance 100 for the nuclear power station is improved.
In the present invention, at least three connecting portions and connecting ropes 140 are provided.
Preferably, referring to fig. 1, in the embodiment of the present invention, three connecting portions and three connecting ropes 140 are provided, so that the number of the connecting ropes 140 can be reduced to the minimum under the condition that the mounting base 130 shakes, which is beneficial to reducing the manufacturing cost.
Referring to fig. 1, in the embodiment of the present invention, the connection rope 140 is a telescopic connection rope 140. Accordingly, the height of each connecting rope 140 can be adjusted to adjust the attitude of the mounting base 130 in the air, and thus the attitude of the object 300 in the air.
Specifically, referring to fig. 1, in the embodiment of the present invention, the connection rope 140 includes a rope main body 141 and a turnbuckle 142, one end of the turnbuckle 142 is connected to the corresponding connection portion, the other end of the turnbuckle is connected to one end of the rope 140 main body, and the other end of the rope main body 141 is connected to the hoisting device 200. The structure is simple, the realization is convenient, and the production and manufacturing cost is favorably reduced.
In the embodiment of the present invention, the lifting device 200 is connected to the other end of the rope body 141 by the tongue-shaped hook 210, so that the connection between the second rope and the lifting device 200 can be rapidly released.
Referring to fig. 1, in the embodiment of the present invention, each lifting lug 112 has a hanging hole 11201 formed on a side surface facing the reference straight line. Each hook 121 is rotatably connected to the mounting base 130, wherein each hook 121 may be connected to the mounting base 130 through a rotating shaft. Each hook 121 has a hook 1211. Each hanging hook 1211 is inserted into one hanging hole 11201 in a hanging state, and each hanging hook 1211 is not inserted into the corresponding hanging hole 11201 in an unhooking state; the driving mechanism 122 is used for driving each hook 121 to rotate relative to the mounting base 130, so that each hook 121 moves from a hook state to a unhooking state.
Based on this structural design, because each lifting hook 121 all rotates to be connected in mounting base 130, in concrete operation process, only need promote each lifting hook 121 rotate can, be favorable to simplifying the structure of drive structure 122, can avoid drive structure 122's structure too complicated.
Specifically, the driving structure 122 includes:
at least two driving ropes 1221 are arranged, and one end of each driving rope 1221 is connected with one lifting hook 121;
and the driver 1222 is installed on the installation base 130, connected to the other end of each driving rope 1221, and drives the hooks 121 to rotate relative to the installation base 130 by driving the other end of the driving rope 1221, so that each hook 121 moves from a hooking state to an unhooking state.
The mounting base 130 is provided with a through hole 1301, and each driving rope 1221 penetrates through the through hole 1301;
a reference straight line passes through the through hole 1301.
Based on this structural design, no matter how many drive ropes 1221 are provided, only one driver 1222 need be provided, and there is no need to provide a corresponding number of drivers 1222 according to the drive ropes 1221.
In an embodiment of the present invention, the driver 1222 is a pneumatic cylinder.
In the embodiment of the present invention, the hoist 100 for a nuclear power plant further includes a return structure (not shown) mounted to the mounting base 130 and configured to drive each of the hooks 121 to move from the unhooking state to the hooking state.
In this way, in the process of connecting the connecting base 110 to the hook assembly 120, the driving structure 122 may first apply a driving force to each hook 121 to drive each hook 121 to move from the hooking state to the unhooking state, and then cancel the driving force applied to each hook 121 by the driving structure 122, at this time, the reset structure may drive each hook 121 to move from the unhooking state to the hooking state, and it is not necessary for a worker to manually drive each hook 121 to move from the unhooking state to the hooking state.
Referring to fig. 1, the present invention further provides a hoisting system, including a hoisting device 200 and a spreader 100 for a nuclear power plant, where the specific structure of the spreader 100 for a nuclear power plant refers to the above embodiments, and since the hoisting system adopts all technical solutions of all the above embodiments, the hoisting system also has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
The present invention is not limited to the above preferred embodiments, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A lifting appliance for a nuclear power plant for lifting an object in cooperation with a lifting device, comprising:
the connecting base comprises a base main body and at least two lifting lugs connected to the base main body, the base main body is detachably connected with the object, the lifting lugs are arranged in an annular equidistant array, and the circle center of a circle formed by enclosing the lifting lugs is located on a reference straight line;
the lifting hook assembly comprises at least two lifting hooks movably connected to the lifting equipment and a driving structure installed on the lifting equipment, the lifting hooks are arranged in an annular equidistant array, the circle center of a circle formed by the enclosing of the lifting hooks is located on the reference straight line, the lifting hooks are switched between a hooking state and an unhooking state through moving relative to the lifting equipment, the lifting hooks respectively hook one lifting lug in the hooking state, the lifting hooks are respectively unhooked with the corresponding lifting lugs in the unhooking state, and the driving structure can drive the lifting hooks to move from the hooking state to the unhooking state.
2. The spreader for nuclear power plant as claimed in claim 1, further comprising:
the mounting base is provided with at least two connecting parts, the connecting parts are arranged in an annular equal-spacing array, and the center of a circle formed by enclosing the connecting parts is positioned on the reference straight line;
at least two connecting ropes are arranged, one end of each connecting rope is connected to one connecting part, and the other end of each connecting rope is connected to the lifting equipment;
the lifting hook is movably connected to the mounting base, and the driving structure is mounted on the mounting base.
3. The spreader for nuclear power plant as claimed in claim 2, wherein the connecting rope is a telescopic connecting rope.
4. The hoist for nuclear power plant according to claim 3, wherein the connection rope includes a rope main body and a turnbuckle, one end of the turnbuckle is connected to the corresponding connection portion, and the other end of the turnbuckle is connected to one end of the rope main body, and the other end of the rope main body is connected to a hoisting device.
5. The spreader for nuclear power plant as claimed in claim 2, wherein each of the lifting lugs is provided with a hanging hole at a side surface facing the reference straight line;
each lifting hook is rotatably connected to the mounting base and provided with a lifting hook, each lifting hook is respectively inserted into one lifting hole in the hooking state, and each lifting hook is not inserted into the corresponding lifting hole in the unhooking state;
the driving structure is used for driving each lifting hook to rotate relative to the mounting base so as to enable each lifting hook to move from the hooking state to the unhooking state.
6. The spreader for nuclear power plant as claimed in claim 2, wherein the driving structure comprises:
at least two driving ropes are arranged, and one end of each driving rope is connected with one lifting hook;
and the driver is arranged on the mounting base, is connected with the other end of each driving rope, and drives the lifting hooks to rotate relative to the mounting base by driving the other ends of the driving ropes so as to enable the lifting hooks to move from the hooking state to the unhooking state.
7. The spreader for nuclear power plant as claimed in claim 6, wherein the mounting base is perforated with a through hole through which each of the driving ropes passes;
the reference line passes through the perforation.
8. The spreader for nuclear power plant as claimed in claim 2, further comprising a restoring structure mounted to the mounting base and configured to drive each of the lifting hooks to move from the unhooked state to the hooked state.
9. The spreader for nuclear power plant as claimed in claim 2, wherein the connecting portions and the connecting ropes are each provided in at least three;
and/or the lifting lugs and the lifting hooks are at least three.
10. A hoisting system, characterized by comprising a hoisting apparatus and a spreader for nuclear power plants as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110491066.5A CN113264444A (en) | 2021-05-06 | 2021-05-06 | Lifting appliance and lifting system for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110491066.5A CN113264444A (en) | 2021-05-06 | 2021-05-06 | Lifting appliance and lifting system for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113264444A true CN113264444A (en) | 2021-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110491066.5A Pending CN113264444A (en) | 2021-05-06 | 2021-05-06 | Lifting appliance and lifting system for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113264444A (en) |
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