CN114043126A - End socket assembling suspension positioning frame and construction method - Google Patents
End socket assembling suspension positioning frame and construction method Download PDFInfo
- Publication number
- CN114043126A CN114043126A CN202111149288.5A CN202111149288A CN114043126A CN 114043126 A CN114043126 A CN 114043126A CN 202111149288 A CN202111149288 A CN 202111149288A CN 114043126 A CN114043126 A CN 114043126A
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- Prior art keywords
- head
- end socket
- horizontal frame
- hoisting
- plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000725 suspension Substances 0.000 title claims abstract description 25
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 238000003466 welding Methods 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/10—Undercarriages or bogies, e.g. end carriages, end bogies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/12—Vessels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a head assembly suspension positioning frame and a construction method thereof. The hoisting device is used for hoisting the end socket and adjusting the upper position, the lower position and the horizontal inclination angle of the end socket, the sliding device and the flange assembling device cooperate to adjust the horizontal position of the end socket and fix the distance between the end socket and the cylinder body, so that good conditions are created for accurate welding. The head assembling and suspending positioning frame integrates the functions of fine adjustment of the position in the horizontal direction, head levelness adjustment and welding line position alignment positioning, ensures that the head is aligned with the equipment cylinder, ensures the assembly precision and welding quality of the equipment head and the cylinder, greatly simplifies the process arrangement of head hoisting assembly, and improves the field construction efficiency and reliability.
Description
Technical Field
The invention relates to a head assembling suspension positioning frame and a construction method, and belongs to the technical field of head hoisting construction.
Background
When a precise instrument is arranged in the container, higher requirements are put forward for the connection construction of the seal head and the cylinder body. For example, in the head welding construction of thorium-based molten salt nuclear reactor vessels and reactor equipment, a temporary positioning clamp plate is welded around a welding line in the conventional construction method, and after a crane is used for lifting a head, butt welding is performed through the positioning clamp plate, a profiling mold and the like, and then the welding line is welded. However, such methods are relatively crude and difficult to control the weld accuracy during construction.
Disclosure of Invention
The application provides a head assembling suspension positioning frame and a construction method, which are used for solving the problems that head construction is relatively rough and welding line precision is difficult to control in the prior art.
In order to solve the technical problems, the invention comprises the following technical scheme:
a head assembly suspension locating rack comprises:
a horizontal frame;
the device comprises a plurality of upright posts and a sliding device, wherein the upright posts are arranged below a horizontal frame at intervals, the tops of the upright posts are fixedly connected with the horizontal frame, and the sliding device is arranged at the bottoms of the upright posts; the sliding device is used for integrally moving the upright post and the horizontal frame;
the cantilever devices are arranged on the horizontal frame at intervals, and the cantilever ends of the cantilever devices are provided with the hoisting devices;
the flange team assembling device comprises a vertical plate and a movable plate, and the vertical plate is fixed on the upright post; the movable plate is provided with a strip-shaped hole, and the vertical plate and the movable plate are fixed through a fastening bolt penetrating through the strip-shaped hole; a plurality of adjusting screws I are arranged on the movable plate.
Further, the sliding device comprises a fixing plate, a sliding bottom plate, a baffle and a second adjusting screw rod, wherein the fixing plate is fixed on the foundation surface, the sliding bottom plate is arranged above the fixing plate and fixedly connected with the bottom of the stand column, the baffle is arranged on the fixing plate, a bolt hole is formed in the baffle, the second adjusting screw rod is arranged in the bolt hole, and the end part of the second adjusting screw rod abuts against the end part of the sliding bottom plate.
Further, the horizontal frame comprises a plurality of cross beams which are sequentially connected end to end.
Further, the stand sets up in the slope, just the stand is the horn shape of big end down and lays.
Further, the hoisting device is an electric hoist or a chain block.
Further, the horizontal frame comprises 4 cross beams which are sequentially connected end to end;
4 upright posts are arranged below the horizontal frame, the upright posts are obliquely arranged, and the upright posts are arranged in a horn shape with a small upper part and a large lower part;
the horizontal frame is provided with 4 cantilever devices and 4 hoisting devices, and each cantilever device is provided with one hoisting device.
A construction method for assembling a seal head is used for splicing a cylinder body and the seal head and comprises the following steps:
mounting the end socket assembly suspension positioning frame;
the hoisting device hoists the end socket, and the end socket assembling, suspending and positioning frame and the end socket are positioned right above the cylinder;
the position of the end socket assembling suspension positioning frame meets the splicing requirement by adjusting the sliding device, and the vertical position and the horizontal state of the end socket are adjusted by using the hoisting device; the movable plate of the flange group device is adjusted and fixed, and the first adjusting screw of the flange group device is adjusted to enable the first adjusting screw to tightly push the seal head and the barrel, so that the seal head and the barrel are temporarily fixed, and the space between the seal head and the barrel is ensured to meet the requirement;
and performing welding seam construction on the end socket and the cylinder, removing the connection between the end socket and the hoisting device after welding is completed, and dismantling the end socket assembly suspension positioning frame.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: through a plurality of stand support horizontal frame, the stand below sets up the displacement device, sets up a plurality of cantilever devices and hoist device on horizontal frame, sets up flange team device on the stand, hoist device is used for hoisting the head and adjusts the upper and lower position and the horizontal inclination of head, displacement device and flange team device adjust the horizontal position of head in coordination to through the interval between a plurality of adjusting screw fixed head and the barrel, thereby create good condition for accurate welding. The head assembling and suspending positioning frame integrates the functions of fine adjustment of the position in the horizontal direction, head levelness adjustment and welding line position alignment positioning, ensures that the head is aligned with the equipment cylinder, ensures the assembly precision and welding quality of the equipment head and the cylinder, greatly simplifies the process arrangement of head hoisting assembly, and improves the field construction efficiency and reliability.
Drawings
Fig. 1 is a schematic view illustrating a head and a barrel in butt joint by using a head assembling and suspending positioning frame according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a suspension positioning frame for assembling a head;
FIG. 3 is a top view of the suspension positioning frame for head assembly;
FIG. 4 is a schematic structural view of the glide assembly;
FIG. 5 is a schematic structural view of a flange formation device;
fig. 6 is a front view of the flange organizing device.
The numbers in the figures are as follows:
1-sealing head; 2-a cylinder body;
10-a horizontal frame;
20-a column; 21-a connecting plate;
30-a sliding device; 31-a fixing plate; 32-a glide baseplate; 33-a baffle; 34-adjusting a screw rod II;
40-a cantilever arrangement;
50-hoisting device;
60-flange team device; 61-a vertical plate; 62-a movable plate; 63-strip-shaped holes; 64-fastening bolts; and 65-adjusting the screw rod I.
Detailed Description
The following will further describe in detail a head assembling and suspending positioning frame and a construction method provided by the present invention with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent in conjunction with the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Example one
Referring to fig. 1 to 3, the head assembly suspension positioning frame provided in this embodiment includes a horizontal frame 10, a plurality of columns 20, a plurality of sliding devices 30, a plurality of cantilever devices 40, a plurality of hoisting devices 50, and a plurality of flange formation devices 60.
Referring to fig. 1 to 3, the vertical column 20 is disposed below the horizontal frame 10 at an interval, the top of the vertical column 20 is fixedly connected to the horizontal frame 10, and the sliding device 30 is disposed at the bottom of the vertical column 20; the sliding device 30 is used for integrally moving the upright post 20 and the horizontal frame 10. The horizontal frame 10 may be a ring frame, a rectangular frame, a hexagonal frame, or other shaped frame structure.
Referring to fig. 1 to 4, the sliding device 30 includes a fixing plate 31, a sliding bottom plate 32, a baffle 33 and a second adjusting screw 34, the fixing plate 31 is fixed on the base surface, the sliding bottom plate 32 is disposed above the fixing plate 31 and fixedly connected to the bottom of the upright column 20, the baffle 33 is disposed on the fixing plate 31, a bolt hole is disposed on the baffle 33, the second adjusting screw 34 is disposed in the bolt hole, and the end of the second adjusting screw abuts against the end of the sliding bottom plate 32. The sliding base is fixedly connected with the bottom of the upright post. The main function of the sliding device 30 is to push the acting force through the second adjusting screw 34, so that the sliding bottom plate 32 moves on the fixing plate 31, thereby horizontally moving the upright post and realizing the fine adjustment of the position of the seal head.
Referring to fig. 1 to 3, the cantilever devices 40 are disposed on the horizontal frame 10 at intervals, and a hanging device 50 is disposed at a cantilever end of the cantilever device 40. By way of example, the cantilever device 40 comprises a vertical rod, a cantilever beam and a diagonal strut, the bottom of the vertical rod is fixed on the horizontal frame 10, the top of the vertical rod is connected with one end of the cantilever beam, and the other end of the cantilever beam is a cantilever end. For example, the hoisting device 50 is an electric block or a chain block, and is disposed on the fixed pulley at the cantilever end.
As shown in fig. 1 to 3, 5 and 6, the flange formation device 60 includes a vertical plate 61 and a movable plate 62, the movable plate 62 is provided with a strip-shaped hole 63, and the vertical plate 61 and the movable plate 62 are fixed by a fastening bolt 64 passing through the strip-shaped hole 63; a plurality of first adjusting screws 65 are arranged on the movable plate 62. The vertical plate 61 is fixed to the column 20, and the vertical plate 61 may be fixed by providing a connecting plate 21 or a bracket to the column 20.
The head equipment that this embodiment provided suspends locating rack in midair supports horizontal frame 10 through a plurality of stands 20, and stand 20 below sets up displacement device 30, sets up a plurality of cantilever devices 40 and hoist device 50 on horizontal frame 10, sets up flange team device 60 on stand 20, hoist device 50 is used for hoisting head 1 and adjusts head 1's upper and lower position and horizontal inclination, displacement device 30 and flange team device 60 coordinate the horizontal position of adjusting head 1 to through the interval between a plurality of adjusting screw 65 fixed head 1 and barrel 2, thereby create good condition for accurate welding. The head assembling and suspending positioning frame integrates the functions of fine adjustment of the position in the horizontal direction, head levelness adjustment and welding line position alignment positioning, ensures that the head is aligned with the equipment cylinder, ensures the assembly precision and welding quality of the equipment head and the cylinder, greatly simplifies the process arrangement of head hoisting assembly, and improves the field construction efficiency and reliability.
By way of example, the horizontal frame 10 includes 4 cross beams, the cross beams are sequentially connected end to end, 4 upright posts 20 are arranged below the horizontal frame 10, the upright posts 20 are arranged in an inclined manner, and the upright posts 20 are arranged in a horn shape with a small top and a large bottom. The horizontal frame 10 is provided with 4 cantilever devices 40 and 4 hoisting devices 50, and each cantilever device 40 is provided with one hoisting device 50. Each upright post 20 is provided with a connecting plate 21, and the height of the connecting plate 21 is matched with that of the barrel 2. The vertical plate 61 of the flange formation device 60 is fixed to the connecting plate 21. The vertical plate 61 and the movable plate 62 are fixed by fastening bolts 64, and the position of the movable plate 62 is adjusted by the strip-shaped holes 63 and the fastening bolts 64. Four bolt holes are formed in each movable plate 62, an adjusting screw rod 65 is arranged in each bolt hole, and the seal head 1 and the barrel 2 can be tightly supported and fixed through the adjusting screw rods 65.
Example two
The embodiment provides a construction method for assembling a seal head, which is used for splicing a cylinder body and the seal head and comprises the following steps:
installing the end socket assembling and suspending positioning frame in the first embodiment;
the hoisting device 50 hoists the end socket 1, and the end socket assembly suspension positioning frame and the end socket are positioned right above the cylinder 2;
the position of the end socket assembling suspension positioning frame meets the splicing requirement by adjusting the sliding device 30, and the vertical position and the horizontal state of the end socket are adjusted by using the hoisting device 50; adjusting and fixing a movable plate 62 of the flange assembling device 60, adjusting a first adjusting screw 65 of the flange assembling device 60, tightly pushing the first adjusting screw 65 to tightly fix the seal head and the barrel, temporarily fixing the seal head and the barrel, and ensuring that the distance between the seal head and the barrel meets the requirement;
and (4) performing welding seam construction on the end socket and the cylinder, removing the connection between the end socket and the hoisting device 50 after welding is completed, and dismantling the end socket assembly suspension positioning frame.
It should be noted that, by adjusting the position of the head assembling suspension positioning frame by the adjusting sliding device 30, the displacement adjusting devices with opposite directions can be used as a pair, the adjusting screw rod two 34 of one displacement adjusting device in each pair is screwed in, and the adjusting screw rod two 34 of the other displacement adjusting device is screwed out, so that all the sliding bottom plates 32 move towards the same direction. The adjusting sliding device 30 can be used for fine adjustment of the position of the end socket assembling suspension positioning frame.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. The utility model provides a locating rack is suspended in midair in head equipment which characterized in that includes:
a horizontal frame;
the device comprises a plurality of upright posts and a sliding device, wherein the upright posts are arranged below a horizontal frame at intervals, the tops of the upright posts are fixedly connected with the horizontal frame, and the sliding device is arranged at the bottoms of the upright posts; the sliding device is used for integrally moving the upright post and the horizontal frame;
the cantilever devices are arranged on the horizontal frame at intervals, and the cantilever ends of the cantilever devices are provided with the hoisting devices;
the flange team assembling device comprises a vertical plate and a movable plate, and the vertical plate is fixed on the upright post; the movable plate is provided with a strip-shaped hole, and the vertical plate and the movable plate are fixed through a fastening bolt penetrating through the strip-shaped hole; a plurality of adjusting screws I are arranged on the movable plate.
2. The head assembly suspension spacer of claim 1,
the sliding device comprises a fixing plate, a sliding bottom plate, a baffle and a second adjusting screw rod, wherein the fixing plate is fixed on the foundation surface, the sliding bottom plate is arranged above the fixing plate and fixedly connected with the bottom of the stand column, the baffle is arranged on the fixing plate, a bolt hole is formed in the baffle, the second adjusting screw rod is arranged in the bolt hole, and the end part of the second adjusting screw rod abuts against the end part of the sliding bottom plate.
3. The head assembly suspension spacer of claim 1,
the horizontal frame comprises a plurality of cross beams which are sequentially connected end to end.
4. The head assembly suspension spacer of claim 1,
the stand slope sets up, just the stand is the horn shape of big end down and lays.
5. The head assembly suspension spacer of claim 1,
the hoisting device is an electric hoist or a chain block.
6. A head assembly suspension spacer of claim 2,
the horizontal frame comprises 4 cross beams which are sequentially connected end to end;
4 upright posts are arranged below the horizontal frame, the upright posts are obliquely arranged, and the upright posts are arranged in a horn shape with a small upper part and a large lower part;
the horizontal frame is provided with 4 cantilever devices and 4 hoisting devices, and each cantilever device is provided with one hoisting device.
7. A construction method for assembling a seal head is used for splicing a cylinder body and the seal head and is characterized by comprising the following steps:
installing the head assembly suspension spacer of claim 1;
the hoisting device hoists the end socket, and the end socket assembling, suspending and positioning frame and the end socket are positioned right above the cylinder;
the position of the end socket assembling suspension positioning frame meets the splicing requirement by adjusting the sliding device, and the vertical position and the horizontal state of the end socket are adjusted by using the hoisting device; the movable plate of the flange group device is adjusted and fixed, and the first adjusting screw of the flange group device is adjusted to enable the first adjusting screw to tightly push the seal head and the barrel, so that the seal head and the barrel are temporarily fixed, and the space between the seal head and the barrel is ensured to meet the requirement;
and performing welding seam construction on the end socket and the cylinder, removing the connection between the end socket and the hoisting device after welding is completed, and dismantling the end socket assembly suspension positioning frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111149288.5A CN114043126A (en) | 2021-09-29 | 2021-09-29 | End socket assembling suspension positioning frame and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111149288.5A CN114043126A (en) | 2021-09-29 | 2021-09-29 | End socket assembling suspension positioning frame and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114043126A true CN114043126A (en) | 2022-02-15 |
Family
ID=80205015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111149288.5A Pending CN114043126A (en) | 2021-09-29 | 2021-09-29 | End socket assembling suspension positioning frame and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114043126A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659019A (en) * | 2012-06-01 | 2012-09-12 | 中国核工业第五建设有限公司 | Special lifting appliance for steel containment cover head in nuclear power station nuclear island and lifting method thereof |
| CN203021207U (en) * | 2012-09-21 | 2013-06-26 | 中国电子科技集团公司第十四研究所 | Large-load multifunctional gantry crane capable of being flexibly spliced |
| CN203199913U (en) * | 2013-04-10 | 2013-09-18 | 中建城市建设发展有限公司 | Assembling and disassembling type hoisting truss |
| CN105904178A (en) * | 2016-06-06 | 2016-08-31 | 湖北三江航天红阳机电有限公司 | Assembling device |
| CN205798849U (en) * | 2016-06-06 | 2016-12-14 | 湖北三江航天红阳机电有限公司 | A kind of group is to device |
| CN107720564A (en) * | 2017-10-25 | 2018-02-23 | 宣化钢铁集团有限责任公司 | It is a kind of to rotate and traversing small-sized machine cantilever crane |
| CN109160434A (en) * | 2018-09-30 | 2019-01-08 | 中国二十冶集团有限公司 | Hanging apparatus |
| CN109623188A (en) * | 2019-01-02 | 2019-04-16 | 江苏新天宝机械有限公司 | Shell sections and heads pairing device |
| CN111302245A (en) * | 2020-01-13 | 2020-06-19 | 上海第一机床厂有限公司 | Lifting positioning device for special-shaped thick-wall stainless steel seal head and assembling method |
-
2021
- 2021-09-29 CN CN202111149288.5A patent/CN114043126A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659019A (en) * | 2012-06-01 | 2012-09-12 | 中国核工业第五建设有限公司 | Special lifting appliance for steel containment cover head in nuclear power station nuclear island and lifting method thereof |
| CN203021207U (en) * | 2012-09-21 | 2013-06-26 | 中国电子科技集团公司第十四研究所 | Large-load multifunctional gantry crane capable of being flexibly spliced |
| CN203199913U (en) * | 2013-04-10 | 2013-09-18 | 中建城市建设发展有限公司 | Assembling and disassembling type hoisting truss |
| CN105904178A (en) * | 2016-06-06 | 2016-08-31 | 湖北三江航天红阳机电有限公司 | Assembling device |
| CN205798849U (en) * | 2016-06-06 | 2016-12-14 | 湖北三江航天红阳机电有限公司 | A kind of group is to device |
| CN107720564A (en) * | 2017-10-25 | 2018-02-23 | 宣化钢铁集团有限责任公司 | It is a kind of to rotate and traversing small-sized machine cantilever crane |
| CN109160434A (en) * | 2018-09-30 | 2019-01-08 | 中国二十冶集团有限公司 | Hanging apparatus |
| CN109623188A (en) * | 2019-01-02 | 2019-04-16 | 江苏新天宝机械有限公司 | Shell sections and heads pairing device |
| CN111302245A (en) * | 2020-01-13 | 2020-06-19 | 上海第一机床厂有限公司 | Lifting positioning device for special-shaped thick-wall stainless steel seal head and assembling method |
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