CN116177358A - Hoisting device with self-balancing adjusting function for nuclear power steam generator - Google Patents
Hoisting device with self-balancing adjusting function for nuclear power steam generator Download PDFInfo
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- CN116177358A CN116177358A CN202211316013.0A CN202211316013A CN116177358A CN 116177358 A CN116177358 A CN 116177358A CN 202211316013 A CN202211316013 A CN 202211316013A CN 116177358 A CN116177358 A CN 116177358A
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- self
- steam generator
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- lifting
- limiting
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- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a hoisting device with a self-balancing adjusting function for a nuclear power steam generator, which comprises a self-balancing adjusting part and a limiting connecting part, wherein the self-balancing adjusting part and the limiting connecting part form the hoisting device with the self-balancing adjusting function
A font structure; the self-balancing adjusting part comprises a lifting hook, a pull arm assembly, a supporting beam and a plurality of connecting pieces, wherein the pull arm assembly, the lifting hook and the supporting beam form a triangular structure through the connecting pieces, and the pull arm assembly rotates around the lifting hook to balance the load lifted by the lifting hook coupler head; the limiting connecting part comprises two connecting plate assemblies, a pulling plate assembly and a plurality of connecting pieces, wherein the supporting beam, the connecting plate assemblies and the pulling plate assembly form a square structure through the connecting pieces, and the two connecting plate assemblies rotate around the supporting beam to balance the load between the pulling arm assemblies. The nuclear power steam generatorThe lifting device with the self-balancing adjusting function has the advantages of stable lifting process and less damage to lifting equipment due to the deviation of the gravity center of the self-balancing adjusting steam generator in the lifting process.
Description
Technical Field
The invention relates to the technical field of lifting devices, in particular to a lifting device with a self-balancing adjusting function for a nuclear power steam generator.
Background
The large steam generator which is independently developed by the third generation nuclear power is the largest and heaviest equipment in the whole nuclear island, the total weight of the steam generator is more than 800 tons when the steam generator is lifted, the steam generator needs to be turned over to be installed in a vertical state after being transported to the site of a power plant from a horizontal state, and a lifting device of the steam generator needs to be configured in order to lift the steam generator from a horizontal placement state to a vertical position and transfer the steam generator from the nuclear island plant to an installation compartment in the vertical state.
The existing steam generator lifting device is arranged in the nuclear island factory building, and needs to be accurately matched with the lifting progress of the steam generator when the nuclear island factory building is built, and before lifting: the lifting beam is connected with the portal crane through a horizontal lifting steel wire rope ring and a horizontal lifting beam, a steam generator is lifted to a platform of +20m from 0m and placed on a special transportation trailer, a turnover lantern ring is arranged at the tail part of the steam generator, and lifting trunnions are arranged on two secondary side manholes of the turnover lantern ring; when lifting, the following steps: the method comprises the steps of transporting a steam generator into a nuclear island factory building, installing a turnover support, connecting a steam generator hanging beam with a ring hanging balance beam, connecting a lifting trunnion with the steam generator hanging beam through a turnover vertical steel wire rope ring, and after the steam generator is turned to a vertical state, dismantling a turnover lantern ring to hoist the steam generator in the vertical state to an installation compartment of the steam generator; because the ring crane, the balance beam and the special hanging beam for the steam generator are required to be subjected to field balance adjustment with the steam generator, the lifting efficiency of the steam generator is low, and meanwhile, the balance beam and the hanging beam are special customized equipment and do not have the functions of universality and self-balancing load adjustment.
Therefore, the lifting device with the self-balancing adjusting function for the nuclear power steam generator is provided for overcoming the defects of the prior art.
Disclosure of Invention
The invention provides a hoisting device with a self-balancing adjusting function for a nuclear power steam generator, and aims to solve the problems that the hoisting process of the steam generator is unstable and damage to hoisting equipment is large due to the deviation of the gravity center of the steam generator in the hoisting process.
The invention adopts the following technical scheme:
hoisting accessory that has self-balancing regulatory function for nuclear power steam generator, its characterized in that: the self-balancing adjusting device comprises a self-balancing adjusting part and a limiting connecting part, wherein the self-balancing adjusting part and the limiting connecting part form a self-balancing adjusting function
A font structure;
the self-balancing adjusting part comprises a lifting hook, a pull arm assembly, a supporting beam and a plurality of connecting pieces, wherein the lifting hook is used for being connected with a lifting hook head, the pull arm assembly is detachably connected with the lifting hook, the supporting beam is detachably connected with one end, far away from the lifting hook, of the pull arm assembly, the lifting hook and the supporting beam form a triangular structure through the connecting pieces, and the pull arm assembly rotates around the lifting hook to balance the load lifted by the lifting hook head;
limiting connection part, including setting up two connecting plate subassemblies at supporting beam both ends, through the connecting plate subassembly respectively with the arm-tie subassembly that is connected can be dismantled at supporting beam's both ends, with the spacing arm-tie subassembly and a plurality of connecting piece of being connected of steam generator's manhole trunnion, supporting beam, connecting plate subassembly and arm-tie subassembly pass through the connecting piece constitutes a style of calligraphy structure, two connecting plate subassemblies are centers on supporting beam rotation balance load between the arm-tie subassembly.
The lifting hook further comprises a through hole, two first connecting holes which are respectively connected with the pull arm assembly through the connecting piece, and a positioning ring used for limiting the lifting pin shaft, wherein the lifting pin shaft which is detachably connected with the crane hook head is arranged on the through hole.
Further as an improvement of the technical scheme of the invention, the supporting beam comprises a supporting main body, a first connecting part and a second connecting part, wherein the first connecting part and the second connecting part are arranged at two ends of the supporting main body, and the first connecting part is symmetrically arranged relative to the supporting main body and the second connecting part.
Further as an improvement of the technical proposal of the invention, the pull arm assembly comprises a first pull arm and a second pull arm;
one end of the first pull arm is detachably connected with the lifting hook through the connecting piece, and the other end of the first pull arm is detachably connected with the first connecting part through the connecting piece;
one end of the second pull arm is detachably connected with the lifting hook through the connecting piece, and the other end of the second pull arm is detachably connected with the second connecting portion through the connecting piece.
Further as an improvement of the technical scheme of the invention, the first connecting part and the second connecting part comprise a second connecting hole and a third connecting hole, the second connecting hole is detachably connected with one end of the pull arm assembly far away from the lifting hook through the connecting piece, and the third connecting hole is detachably connected with the first connecting plate through the connecting piece;
reinforcing plates are arranged on two end faces of the second connecting hole and the third connecting hole, and the inner side face of the pull arm assembly is in butt fit with the outer side face of the reinforcing plates.
Further as an improvement of the technical scheme of the invention, the connecting plate assembly comprises a first connecting plate and a second connecting plate which is rotated by 90 degrees relative to the first connecting plate, one end of the first connecting plate is detachably connected with the first connecting part or the second connecting part through the connecting piece, the second connecting plate is detachably connected with the pulling plate assembly through the connecting piece, one end of the first connecting plate and one end of the second connecting plate, which are far away from a connecting part, are provided with a plurality of openings, and the first connecting plate is fixedly connected with the plurality of openings of the second connecting plate in a crossing way.
Further as an improvement of the technical scheme of the invention, the pull plate assembly comprises an A-shaped pull plate, a first limiting plate and a second limiting plate, wherein the first limiting plate is fixedly arranged on the outer end face of the A-shaped pull plate, and the second limiting plate is fixedly arranged at the two end faces of the A-shaped pull plate.
Further as an improvement of the technical scheme of the invention, the A-shaped pulling plate is provided with a limiting hole for inserting the manhole trunnion, one end of the A-shaped pulling plate, which is far away from the limiting hole, is detachably connected with the second connecting plate through the connecting piece, the first limiting plate limits the manhole trunnion to move up and down in the limiting hole along the axis direction perpendicular to the limiting hole, and the second limiting plate limits the manhole trunnion to move left and right in the limiting hole along the axis direction of the limiting hole.
The connecting piece comprises a pin shaft, two pin shaft covers arranged on the outer sides of the connecting parts, a plurality of bolts and gaskets, wherein the pin shaft penetrates through the pin shaft covers and the gaskets to be in threaded connection with the bolts, and the pin shaft, the pin shaft covers and the gaskets are in coaxial fit.
The steam generator is characterized by further comprising a turnover support, wherein the turnover support comprises a fixed bottom plate fixedly connected with the base, a turnover part rotationally connected with the steam generator and a supporting part connected with the fixed bottom plate and the turnover part.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a lifting device with a self-balancing adjusting function for a nuclear power steam generator, which comprises a self-balancing adjusting part with a triangular structure and a limit connecting part, wherein the self-balancing adjusting part consists of a pull arm assembly, a lifting hook and a supporting beam through connecting pieces, the limit connecting part consists of a supporting beam, a connecting plate assembly and a pull plate assembly through connecting pieces, and the self-balancing adjusting part and the limit connecting part form a square structure with the self-balancing adjusting function
A font structure; when the horizontal steam generator is lifted to the vertical state, because the steam generator equipment is not completely symmetrical, and errors in the manufacturing process accumulate, the gravity center of the steam generator is not on the vertical symmetry axis of the steam generator during lifting, and during lifting, the steam generator can be balanced by generating relatively tiny deformation through the self-balancing adjusting part of the triangular structureThe deviation of the center of gravity of the generator can be supplemented and balanced by generating tiny deformation between the connecting plate assembly and the supporting beam in the limiting connecting part. The hoisting device with the self-balancing adjusting function for the nuclear power steam generator has the characteristics of stable hoisting process and less damage to hoisting equipment due to the deviation of the gravity center of the self-balancing adjusting steam generator in the hoisting process.
Drawings
The technology of the present invention will be described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a schematic perspective view of a lifting device with self-balancing adjustment function for a nuclear power steam generator;
FIG. 2 is a front view of a lifting device with self-balancing adjustment for a nuclear power steam generator;
FIG. 3 is a front view of a support beam in a lifting device with self-balancing adjustment for a nuclear power steam generator;
FIG. 4 is a schematic cross-sectional view taken at D-D of FIG. 2;
FIG. 5 is a schematic perspective view of a lifting device lifting a steam generator;
fig. 6 is a front view of a flip bracket in a lifting device with self-balancing adjustment for a nuclear power steam generator.
Reference numerals:
1. a self-balancing adjustment unit; 2. a limit connecting part; 3. a lifting hook; 31. lifting the pin shaft; 32. a through hole; 33. a first connection hole; 34. a positioning ring; 4. a pull arm assembly; 41. a first pull arm; 42. a second pull arm; 5. a support beam; 51. a support body; 52. a first connection portion; 53. a second connecting portion; 54. a second connection hole; 55. a third connection hole; 56. a reinforcing plate; 6. a connecting plate assembly; 61. a first connection plate; 62. a second connecting plate; 63. an opening; 7. a pulling plate assembly; 71. a-shaped pulling plates; 711. a limiting hole; 72. a first limiting plate; 73. a second limiting plate; 8. a connecting piece; 81. a pin shaft; 82. a pin shaft cover; 83. a bolt; 84. a gasket; 9. overturning the bracket; 91. a fixed bottom plate; 92. a turnover part; 93. a support part; 10. a crane hook head; 11. manhole trunnion.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, aspects, and effects of the present invention. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The same reference numbers will be used throughout the drawings to refer to the same or like parts.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, etc. used in the present invention are merely with respect to the mutual positional relationship of the constituent elements of the present invention in the drawings.
A lifting device with a self-balancing adjusting function for a nuclear power steam generator, referring to fig. 1 to 6, comprises a self-balancing adjusting part 1 and a limit connecting part 2.
The self-balancing adjusting part 1 and the limit connecting part 2 form a self-balancing adjusting function
A font structure; the self-balancing adjusting part 1 comprises a lifting hook 3 connected with a lifting hook coupler head 10, a pull arm assembly 4 detachably connected with the lifting hook 3, a supporting beam 5 detachably connected with one end, far away from the lifting hook 3, of the pull arm assembly 4 and a plurality of connecting pieces 8, wherein the pull arm assembly 4, the lifting hook 3 and the supporting beam 5 form a triangular structure through the connecting pieces 8, and the pull arm assembly 4 rotates around the lifting hook 3 to balance the load lifted by the lifting hook coupler head 10; the limiting connection part 2 comprises two connecting plate assemblies 6 arranged at two ends of the supporting beam 5, a pulling plate assembly 7 detachably connected with two ends of the supporting beam 5 respectively through the connecting plate assemblies 6, a pulling plate assembly 7 limitedly connected with a manhole trunnion 11 of a steam generator and a plurality of connecting pieces 8, wherein the supporting beam 5, the connecting plate assemblies 6 and the pulling plate assembly 7 form a square structure through the connecting pieces 8, and the two connecting plate assemblies 6 rotate around the supporting beam 5 to balance the pulling arm groupThe load between the members 4.
Wherein, the self-balancing adjusting part 1 with a triangle structure formed by the pull arm assembly 4, the lifting hook 3 and the supporting beam 5 through the connecting piece 8 and the limit connecting part 2 with a square structure formed by the supporting beam 5, the connecting plate assembly 6 and the pull plate assembly 7 through the connecting piece 8 form a self-balancing adjusting function by the self-balancing adjusting part 1 and the limit connecting part 2
A font structure; when the horizontal steam generator is lifted to the vertical state, as the steam generator device is not completely symmetrical, and errors in the manufacturing process are accumulated, the gravity center of the steam generator is not on the vertical symmetry axis of the steam generator during lifting, in the lifting process, the gravity center deviation of the steam generator can be balanced by generating relatively tiny deformation of the self-balancing adjusting part 1 with a triangular structure, and meanwhile, the gravity center deviation of the balanced steam generator can be complemented by generating tiny deformation between the connecting plate assembly 6 and the supporting beam 5 in the limiting connecting part 2. The hoisting device with the self-balancing adjusting function for the nuclear power steam generator has the characteristics of stable hoisting process and less damage to hoisting equipment due to the deviation of the gravity center of the self-balancing adjusting steam generator in the hoisting process.
In one embodiment, the lifting hook 3 comprises a through hole 32 detachably connected with the lifting coupler head 10 through a lifting pin 31, two first connecting holes 33 respectively connected with the pull arm assembly 4 through the connecting piece 8, and a positioning ring 34 for limiting the lifting pin 31.
In one embodiment, the support beam 5 includes a support body 51, a first connection part 52 and a second connection part 53 provided at both ends of the support body 51, the first connection part 52 being symmetrically provided with respect to the support body 51 and the second connection part 53; the pull arm assembly 4 includes a first pull arm 41 and a second pull arm 42; one end of the first pull arm 41 is detachably connected with the lifting hook 3 through the connecting piece 8, and the other end of the first pull arm is detachably connected with the first connecting part 52 through the connecting piece 8; one end of the second pull arm 42 is detachably connected with the hook 3 through the connecting piece 8, and the other end is detachably connected with the second connecting portion 53 through the connecting piece 8.
In one embodiment, the support body 51 is adjustably positioned in length; the length of the support body 51 can be adjusted for use with steam generators of different diameters; the first connecting part 52 and the second connecting part 53 comprise a second connecting hole 54 and a third connecting hole 55, the second connecting hole 54 is detachably connected with one end of the pull arm assembly 4 far away from the lifting hook 3 through the connecting piece 8, and the third connecting hole 55 is detachably connected with the first connecting plate 61 through the connecting piece 8; the two end surfaces of the second connecting hole 54 and the third connecting hole 55 are respectively provided with a reinforcing plate 56, and the inner side surface of the pull arm assembly 4 is in abutting fit with the outer side surface of the reinforcing plate 56; in this case, when the steam generator is lifted, the pull arm assembly 4 and the connecting plate assembly 6 deflect at a small angle to realize load balance, if the reinforcing plate 56 is not provided, the load generated by the deflection of the first pull arm 41 and the second pull arm 42 and the load generated by the deflection of the connecting plate assembly 6 are shared by the bodies of the first connecting portion 52 and the second connecting portion 53, and the whole weight of the steam generator is transferred to the first pull arm 41 and the second pull arm 42 through the connecting plate assembly 6 via the first connecting portion 52 and the second connecting portion 53, the distance between the two second connecting holes 54 and the two third connecting holes 55 is short, so that the first connecting portion 52 and the second connecting portion 53 are easily damaged for a long time, and if the reinforcing plate 56 is placed at the two end surfaces of the second connecting holes 54 and the third connecting holes 55, the reinforcing plate 56 can better protect the first connecting portion 52 and the second connecting portion 53 instead of the asymmetric load generated when the steam generator is lifted.
In one embodiment, the connecting plate assembly 6 comprises a first connecting plate 61 and a second connecting plate 62 which is rotated by 90 degrees relative to the first connecting plate 61, one end of the first connecting plate 61 is detachably connected with the first connecting part 52 or the second connecting part 53 through a connecting piece 8, the second connecting plate 62 is detachably connected with the pulling plate assembly 7 through the connecting piece 8, a plurality of openings 63 are arranged at one end of the first connecting plate 61 and the second connecting plate 62 away from the connecting position, and the first connecting plate 61 is fixedly connected with the plurality of openings 63 of the second connecting plate 62 in a crossing manner; the pull plate assembly 7 comprises an A-shaped pull plate 71, a first limiting plate 72 and a second limiting plate 73, wherein the first limiting plate 72 is fixedly arranged on the outer end face of the A-shaped pull plate 71, and the second limiting plate 73 is fixedly arranged at the two end faces of the A-shaped pull plate 71; the A-shaped pull plate 71 is provided with a limiting hole 711 for inserting the manhole trunnion 11, one end of the A-shaped pull plate 71 far away from the limiting hole 711 is detachably connected with the second connecting plate 62 through a connecting piece 8, the first limiting plate 72 limits the manhole trunnion 11 to move up and down in the limiting hole 711 along the axial direction vertical to the limiting hole 711, and the second limiting plate 73 limits the manhole trunnion 11 to move left and right in the limiting hole 711 along the axial direction of the limiting hole 711; the a-type pulling plate 71 and the manhole trunnion 11 are designed to be in surface contact, so that structural stress uniformity is improved, and movement of the manhole trunnion 11 at the limiting hole 711 is limited through limiting actions of the first limiting plate 72 and the second limiting plate 73, and due to the fact that the weight of the steam generator is large, frequent movement can cause the lifting device and the manhole trunnion 11 to increase fatigue strength, loss of the device is increased, even the a-type pulling plate 71 is separated out when serious, and the steam generator is damaged.
In one embodiment, the connecting piece 8 comprises a pin shaft 81, two pin shaft covers 82 arranged on the outer sides of the connecting parts, a plurality of bolts 83 and gaskets 84, the pin shaft 81 penetrates through the pin shaft covers 82 and the gaskets 84 to be in threaded connection with the bolts 83, the pin shaft 81 covers and the gaskets 84 are in coaxial line fit, and the gaskets 84 increase the contact area of the pin shaft 81 and can effectively protect parts.
In one embodiment, the lifting device further comprises a turnover bracket 9, wherein the turnover bracket 9 is used for supporting the bottom of the steam generator, and the turnover bracket 9 comprises a fixed bottom plate 91 fixedly connected with the base, a turnover part 92 rotatably connected with the steam generator and a supporting part 93 connected with the fixed bottom plate 91 and the turnover part 92; the overturning bracket 9 is horizontally arranged on a nuclear island site base, and in the lifting and overturning process of the steam generator device, the overturning bracket 9 can bear lifting force (comprising horizontal component force and vertical component force) transmitted by the device, the weight of the device, the supporting force and friction force of the base to the overturning bracket 9; when the moment generated by the horizontal component of the lifting force transmitted by the equipment and borne by the overturning bracket 9 exceeds the moment generated by the gravity of the equipment, the overturning bracket 9 may overturn; when the horizontal component of the lifting force transmitted by the device, borne by the flip bracket 9, exceeds the friction between the flip bracket 9 and the base, the flip bracket 9 may slide; both of these cases are not allowed to occur during lifting and turning of the steam generator.
Wherein, because the steam generator has large weight, the horizontal component of the lifting force generated by the steam generator is also large, and the condition of fixing the overturning bracket 9 is not provided on site; the overturning bracket 9 ensures that the horizontal component force of the lifting force transmitted by the equipment and borne by the overturning bracket 9 in the lifting and overturning process of the steam generator equipment does not exceed the friction force between the overturning bracket and the base, so that the steam generator equipment is prevented from sliding; on the other hand, the moment generated by the horizontal component of the lifting force transmitted by the equipment and borne by the transfer device in the lifting and overturning process of the steam generator equipment is not exceeding the moment generated by the gravity of the equipment, and the overturning of the equipment is avoided, so that the overturning bracket 9 has a self-stabilizing function.
Before lifting, the tail part of the steam generator placed in a horizontal state is connected with the overturning bracket 9, the head part of the steam generator is connected with the limiting connecting part 2, and the crane hook head 10 is connected with the lifting hook 3 of the self-balancing adjusting part 1 through the lifting pin 81; in the lifting process, starting the crane, and driving the lifting hook 3 to move upwards by the crane hook head 10 until the steam generator is in a vertical state; and transferring the steam generator from the nuclear island factory building to the installation compartment in a vertical state, and completing lifting of the steam generator.
The other contents of the lifting device with the self-balancing adjusting function for the nuclear power steam generator are referred to in the prior art, and are not described herein.
The above is only a preferred embodiment of the present invention, and is not limited in any way, so any modification, equivalent variation and modification made to the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. Hoisting accessory that has self-balancing regulatory function for nuclear power steam generator, its characterized in that: the self-balancing adjusting device comprises a self-balancing adjusting part and a limiting connecting part, wherein the self-balancing adjusting part and the limiting connecting part form a self-balancing adjusting function
A font structure;
the self-balancing adjusting part comprises a lifting hook, a pull arm assembly, a supporting beam and a plurality of connecting pieces, wherein the lifting hook is used for being connected with a lifting hook head, the pull arm assembly is detachably connected with the lifting hook, the supporting beam is detachably connected with one end, far away from the lifting hook, of the pull arm assembly, the lifting hook and the supporting beam form a triangular structure through the connecting pieces, and the pull arm assembly rotates around the lifting hook to balance the load lifted by the lifting hook head;
limiting connection part, including setting up two connecting plate subassemblies at supporting beam both ends, through the connecting plate subassembly respectively with the arm-tie subassembly that is connected can be dismantled at supporting beam's both ends, with the spacing arm-tie subassembly and a plurality of connecting piece of being connected of steam generator's manhole trunnion, supporting beam, connecting plate subassembly and arm-tie subassembly pass through the connecting piece constitutes a style of calligraphy structure, two connecting plate subassemblies are centers on supporting beam rotation balance load between the arm-tie subassembly.
2. The lifting device with a self-balancing adjustment function for a nuclear power steam generator according to claim 1, wherein: the lifting hook comprises a through hole, two first connecting holes which are respectively connected with the pull arm assembly through the connecting piece, and a positioning ring used for limiting the lifting pin shaft, wherein the lifting pin shaft which is detachably connected with the crane hook head is arranged on the through hole.
3. The lifting device with a self-balancing adjustment function for a nuclear power steam generator according to claim 1, wherein: the support beam comprises a support body, a first connecting part and a second connecting part, wherein the first connecting part and the second connecting part are arranged at two ends of the support body, and the first connecting part is symmetrically arranged relative to the support body and the second connecting part.
4. A lifting device with self-balancing adjustment function for a nuclear power steam generator according to claim 3, characterized in that: the pull arm assembly comprises a first pull arm and a second pull arm;
one end of the first pull arm is detachably connected with the lifting hook through the connecting piece, and the other end of the first pull arm is detachably connected with the first connecting part through the connecting piece;
one end of the second pull arm is detachably connected with the lifting hook through the connecting piece, and the other end of the second pull arm is detachably connected with the second connecting portion through the connecting piece.
5. The lifting device with a self-balancing adjustment function for a nuclear power steam generator according to claim 4, wherein: the first connecting part and the second connecting part comprise a second connecting hole and a third connecting hole, the second connecting hole is detachably connected with one end, far away from the lifting hook, of the pull arm assembly through the connecting piece, and the third connecting hole is detachably connected with the first connecting plate through the connecting piece;
reinforcing plates are arranged on two end faces of the second connecting hole and the third connecting hole, and the inner side face of the pull arm assembly is in butt fit with the outer side face of the reinforcing plates.
6. The lifting device with a self-balancing adjustment function for a nuclear power steam generator according to claim 1, wherein: the connecting plate assembly comprises a first connecting plate and a second connecting plate which is arranged in a 90-degree rotating mode relative to the first connecting plate, one end of the first connecting plate is detachably connected with the first connecting portion or the second connecting portion through the connecting piece, the second connecting plate is detachably connected with the pulling plate assembly through the connecting piece, a plurality of openings are formed in one ends, away from the connecting positions, of the first connecting plate and the second connecting plate, and the first connecting plate is fixedly connected with the plurality of openings of the second connecting plate in a crossed mode.
7. The lifting device with a self-balancing adjustment function for a nuclear power steam generator of claim 6, wherein: the pull plate assembly comprises an A-shaped pull plate, a first limiting plate and a second limiting plate, wherein the first limiting plate is fixedly arranged on the outer end face of the A-shaped pull plate, and the second limiting plate is fixedly arranged at the two end faces of the A-shaped pull plate.
8. The lifting device with a self-balancing adjustment function for a nuclear power steam generator of claim 7, wherein: the A-shaped pulling plate is provided with a limiting hole for the insertion of the manhole trunnion, one end of the A-shaped pulling plate, which is far away from the limiting hole, is detachably connected with the second connecting plate through the connecting piece, the first limiting plate limits the manhole trunnion to move up and down in the limiting hole along the axial direction perpendicular to the limiting hole, and the second limiting plate limits the manhole trunnion to move left and right in the limiting hole along the axial direction of the limiting hole.
9. The lifting device with a self-balancing adjustment function for a nuclear power steam generator according to claim 1, wherein: the connecting piece comprises a pin shaft, two pin shaft covers, a plurality of bolts and gaskets, wherein the two pin shaft covers are arranged on the outer sides of the connecting parts, the pin shaft penetrates through the pin shaft covers and the gaskets to be in threaded connection with the bolts, and the pin shaft, the pin shaft covers and the gaskets are in coaxial line fit.
10. The lifting device with a self-balancing adjustment function for a nuclear power steam generator according to claim 1, wherein: the steam generator is characterized by further comprising a turnover support, wherein the turnover support comprises a fixed bottom plate fixedly connected with the base, a turnover part rotationally connected with the steam generator and a supporting part connected with the fixed bottom plate and the turnover part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211316013.0A CN116177358A (en) | 2022-10-26 | 2022-10-26 | Hoisting device with self-balancing adjusting function for nuclear power steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211316013.0A CN116177358A (en) | 2022-10-26 | 2022-10-26 | Hoisting device with self-balancing adjusting function for nuclear power steam generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116177358A true CN116177358A (en) | 2023-05-30 |
Family
ID=86444851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211316013.0A Pending CN116177358A (en) | 2022-10-26 | 2022-10-26 | Hoisting device with self-balancing adjusting function for nuclear power steam generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116177358A (en) |
-
2022
- 2022-10-26 CN CN202211316013.0A patent/CN116177358A/en active Pending
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