CN112061949A - Lifting hook switching device for 1000MW reactor coolant pump - Google Patents
Lifting hook switching device for 1000MW reactor coolant pump Download PDFInfo
- Publication number
- CN112061949A CN112061949A CN202010863686.2A CN202010863686A CN112061949A CN 112061949 A CN112061949 A CN 112061949A CN 202010863686 A CN202010863686 A CN 202010863686A CN 112061949 A CN112061949 A CN 112061949A
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- CN
- China
- Prior art keywords
- lifting arm
- crane boom
- penetrates
- lifting
- coolant pump
- Prior art date
- 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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Classifications
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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
Abstract
The invention relates to a lifting hook switching device of a 1000MW reactor coolant pump, wherein a bolt penetrates into a hole at the upper part of a switching seat, a crane boom is arranged on the bolt, a hexagon head screw is matched with a stop washer and penetrates through a threaded hole on a locking plate to be fixed with the bolt, and the hexagon head screw is matched with a hexagon head nut and penetrates through a threaded hole on the locking plate to be fixed with the crane boom; the guide sleeve is connected with the crane boom through a hexagon head screw and a stop washer, the small shaft penetrates into the guide sleeve, and the moving rod is installed in a threaded hole of the small shaft. The lifting hook of the coolant pump of the 1000MW reactor can be quickly switched and used by applying the device, and the lifting hook of the coolant pump of the 1000MW reactor has the advantages of strong controllability, less manpower requirement, simple operation and convenient installation and disassembly. The device used in the invention is convenient to manufacture and is beneficial to saving cost.
Description
The technical field is as follows:
the invention relates to a lifting hook switching device for a 1000MW reactor coolant pump.
Background art:
millions of reactor coolant pump units weigh hundreds of tons, and are assembled in a containment vessel from the radioactive maintenance of a nuclear power plant and a factory building of a decontamination workshop and are hoisted and matched by using a crane. At present, crane hooks in containment vessels of domestic nuclear power plants adopt single-head hooks due to space considerations, so that lifting tool interfaces of 1000MW reactor coolant pumps are designed according to the single-head hooks; outside the containment vessel, such as in a factory building of a radioactive machine maintenance and decontamination workshop, a double-head T-shaped lifting hook is mostly adopted as the lifting hook of the crane. This current situation causes the lifting of 1000MW reactor coolant pumps to be limited in the form of hooks. The operation process of replacing the lifting hook of the crane is complicated, the workload is large, and the working efficiency is influenced.
The invention content is as follows:
the invention aims to provide a lifting hook switching device for a 1000MW reactor coolant pump, which can quickly realize the switching of lifting modes and ensure the safety, accuracy, convenience and quickness of lifting under the conditions of different working occasions and different crane lifting hook modes. The technical scheme of the invention is as follows: a lifting hook switching device for a 1000MW reactor coolant pump is of a vertical structure, and a connecting sleeve (6) penetrates into a hole in the lower part of a switching seat (1) and is welded with the switching seat (1) into a whole; a left bolt (8) and a right bolt (17) penetrate into double holes in the upper part of the conversion seat (1), a first crane boom (2) and a second crane boom (16) are installed on the left bolt (8), a third crane boom (14) and a fourth crane boom (15) are installed on the right bolt (17), a second hexagonal head screw (9) penetrates through a threaded hole in the locking plate (3) and is fixedly connected with the left bolt (8) and the right bolt (17) respectively, and a third hexagonal head screw (11) is matched with a hexagonal head nut (10) and penetrates through a threaded hole in the locking plate (3) and is fixedly connected with the first crane boom (2), the second crane boom (16), the third crane boom (14) and the fourth crane boom (15) respectively; the first lifting arm (2) and the third lifting arm (14) are fixedly connected with the front surface of the conversion seat (1), and the second lifting arm (16) and the fourth lifting arm (15) are fixedly connected with the back surface of the conversion seat (1); the two guide sleeves (7) are respectively and fixedly connected with a second lifting arm (16) and a third lifting arm (14) through a first hexagonal head screw (5) and a single lug stop washer (13), a small shaft (4) penetrates into the guide sleeves (7), a moving rod (12) is installed in a threaded hole of the small shaft (4), and C-shaped grooves are designed on the two guide sleeves (7); the first lifting arm (2), the second lifting arm (16), the third lifting arm (14), the fourth lifting arm (15) and the connecting sleeve (6) are arranged in a triangular shape on the conversion seat (1).
The working principle of the invention is as follows:
the invention is based on a 1000MW reactor coolant pump and requires assembly in a radioactive machine repair and decontamination workshop building before completing the assembly and hoisting into a containment. At present, the crane hook in the containment vessel of the domestic nuclear power plant adopts a single-head hook due to space factors and other considerations, so that the lifting tool interfaces of a 1000MW reactor coolant pump are designed according to the single-head hook; outside the containment vessel, such as in a factory building of a radioactive machine maintenance and decontamination workshop, a double-head T-shaped lifting hook is mostly adopted as the lifting hook of the crane. The connecting sleeve (6) penetrates into a hole at the lower part of the conversion seat (1) and is welded with the conversion seat (1) into a whole; a left bolt (8) and a right bolt (17) penetrate into double holes in the upper part of the conversion seat (1), a first crane boom (2) and a second crane boom (16) are installed on the left bolt (8), a third crane boom (14) and a fourth crane boom (15) are installed on the right bolt (17), a second hexagonal head screw (9) penetrates through a threaded hole in the locking plate (3) and is fixedly connected with the left bolt (8) and the right bolt (17) respectively, and a third hexagonal head screw (11) is matched with a hexagonal head nut (10) and penetrates through a threaded hole in the locking plate (3) and is fixedly connected with the first crane boom (2), the second crane boom (16), the third crane boom (14) and the fourth crane boom (15) respectively; the first lifting arm (2) and the third lifting arm (14) are fixedly connected with the front surface of the conversion seat (1), and the second lifting arm (16) and the fourth lifting arm (15) are fixedly connected with the back surface of the conversion seat (1); the two guide sleeves (7) are respectively and fixedly connected with a second lifting arm (16) and a third lifting arm (14) through a first hexagonal head screw (5) and a single lug stop washer (13), a small shaft (4) penetrates into the guide sleeves (7), a moving rod (12) is installed in a threaded hole of the small shaft (4), and C-shaped grooves are designed on the two guide sleeves (7); the first lifting arm (2), the second lifting arm (16), the third lifting arm (14), the fourth lifting arm (15) and the connecting sleeve (6) are arranged in a triangular shape on the conversion seat (1). A connecting sleeve (6) at the lower part of the whole lifting conversion device is connected with a lifting tool interface matched with a reactor coolant pump, and C-shaped grooves are designed on two guide sleeves (7) which are arranged in double holes at the upper part of the lifting conversion device, so that a moving rod (12) can move in the grooves, and a small shaft (4) is pushed out and limited to serve as a stress hanging beam of a double-head T-shaped lifting hook. After the whole set of hoisting conversion device is installed, the rapid conversion and use of different lifting hook forms can be realized, and the safe, accurate, convenient and rapid lifting of the reactor coolant pump unit can be ensured.
The invention has the beneficial effects that:
(1) the lifting hook conversion device has a simple structure, the height meets the field use requirement, the lifting hook and equipment in the lifting hook do not need to be replaced for the crane, the universality is strong, the manpower is saved, and the working time is shortened.
(2) The lifting hook conversion device can greatly shorten the lifting time of the unit from an assembly workshop to the time of entering the nuclear island containment vessel, avoid frequent replacement of the lifting hook and improve the working efficiency of the site.
(3) The weight of a 1000MW reactor coolant pump set reaches hundreds of tons, and the stability and the safety of hoisting equipment directly influence the assembly, the test and the stable operation of a main pump and a power station. The invention comprehensively considers the design and the use safety of the equipment, and reduces the possibility of economic loss caused by the stability and the safety of the hoisting equipment.
(4) The invention is specially designed based on the main pump of the 1000MW nuclear power station, and can ensure the safe, accurate, convenient and quick conversion and use of different hook forms during the hoisting of the unit, reduce the purchase quantity of power station equipment and improve the universality of the power station equipment; the whole process is short in time consumption, small in required space, less in required manpower and simple to operate;
(5) the lifting hook conversion device is simple to manufacture, relatively low in machining precision, beneficial to controlling cost and saving cost.
Drawings
FIG. 1 is a front view of a 1000MW reactor coolant pump hook switching device
FIG. 2 is a first cross-sectional view of a 1000MW reactor coolant pump hook switching device
FIG. 3 is a rear view of a 1000MW reactor coolant pump hook switch
FIG. 4 is a second cross-sectional view of a 1000MW reactor coolant pump hook switching device
Detailed Description
As shown in fig. 1, the lifting hook switching device for the 1000MW reactor coolant pump is of a vertical structure, and a connecting sleeve 6 penetrates through a hole at the lower part of a switching seat 1 and is welded with the switching seat 1 into a whole; a left bolt 8 and a right bolt 17 penetrate through double holes in the upper part of the conversion seat 1, as shown in fig. 2, a first boom 2 and a second boom 16 are installed on the left bolt 8, as shown in fig. 4, a third boom 14 and a fourth boom 15 are installed on the right bolt 17, as shown in fig. 4, a second hexagonal head screw 9 penetrates through a threaded hole in the locking plate 3 and is fixedly connected with the left bolt 8 and the right bolt 17 respectively, and a third hexagonal head screw 11 is matched with a hexagonal head nut 10 and penetrates through a threaded hole in the locking plate 3 and is fixedly connected with the first boom 2, the second boom 16, the third boom 14 and the fourth boom 15 respectively; as shown in fig. 1, the first boom 2 and the third boom 14 are fixedly connected with the front side of the conversion seat 1, and as shown in fig. 3, the second boom 16 and the fourth boom 15 are fixedly connected with the back side of the conversion seat 1; the two guide sleeves 7 are respectively and fixedly connected with a second lifting arm 16 and a third lifting arm 14 through a first hexagonal head screw 5 and a single lug stop washer 13, the small shaft 4 penetrates into the guide sleeves 7, the moving rod 12 is installed in a threaded hole of the small shaft 4, and C-shaped grooves are designed on the two guide sleeves 7; the first jib 2, the second jib 16, the third jib 14, the fourth jib 15 and the connecting sleeve 6 are arranged in a triangular manner on the conversion socket 1.
In an assembly plant outside a nuclear island containment, a connecting sleeve 6 in a single hole at the lower part of the whole lifting conversion device is connected with a lifting tool interface matched with a reactor coolant pump, and two guide sleeves 7 arranged in double holes at the upper part of the lifting conversion device are provided with C-shaped grooves, so that a movable rod 12 can move in the grooves, and the small shaft 4 is pushed out and limited. During actual operation, the first small shaft 4 is pushed out and positioned through the first movable rod 12, then the double-head T-shaped lifting hook is adjusted to hook the first small shaft 4, and then the second small shaft 4 is pushed out and positioned through the second movable rod 12; at this time, the two small shafts 4 are used as the stressed hanging beams of the double-head T-shaped hanging hook. A stable structure in triangular arrangement is formed by a single hole of a connecting sleeve 6 at the lower part of the whole lifting conversion device and double holes formed by two guide sleeves 7 at the upper part.
Claims (1)
1. The utility model provides a 1000MW reactor coolant pump lifting hook conversion equipment which characterized in that: the device is of a vertical structure, and a connecting sleeve (6) penetrates through a hole in the lower part of a conversion seat (1) and is welded with the conversion seat (1) into a whole; a left bolt (8) and a right bolt (17) penetrate into double holes in the upper part of the conversion seat (1), a first crane boom (2) and a second crane boom (16) are installed on the left bolt (8), a third crane boom (14) and a fourth crane boom (15) are installed on the right bolt (17), a second hexagonal head screw (9) penetrates through a threaded hole in the locking plate (3) and is fixedly connected with the left bolt (8) and the right bolt (17) respectively, and a third hexagonal head screw (11) is matched with a hexagonal head nut (10) and penetrates through a threaded hole in the locking plate (3) and is fixedly connected with the first crane boom (2), the second crane boom (16), the third crane boom (14) and the fourth crane boom (15) respectively; the first lifting arm (2) and the third lifting arm (14) are fixedly connected with the front surface of the conversion seat (1), and the second lifting arm (16) and the fourth lifting arm (15) are fixedly connected with the back surface of the conversion seat (1); the two guide sleeves (7) are respectively and fixedly connected with a second lifting arm (16) and a third lifting arm (14) through a first hexagonal head screw (5) and a single lug stop washer (13), a small shaft (4) penetrates into the guide sleeves (7), a moving rod (12) is installed in a threaded hole of the small shaft (4), and C-shaped grooves are designed on the two guide sleeves (7); the first lifting arm (2), the second lifting arm (16), the third lifting arm (14), the fourth lifting arm (15) and the connecting sleeve (6) are arranged in a triangular shape on the conversion seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863686.2A CN112061949B (en) | 2020-08-25 | 2020-08-25 | Lifting hook switching device for 1000MW reactor coolant pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863686.2A CN112061949B (en) | 2020-08-25 | 2020-08-25 | Lifting hook switching device for 1000MW reactor coolant pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112061949A true CN112061949A (en) | 2020-12-11 |
| CN112061949B CN112061949B (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010863686.2A Active CN112061949B (en) | 2020-08-25 | 2020-08-25 | Lifting hook switching device for 1000MW reactor coolant pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112061949B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1405513A (en) * | 1973-06-05 | 1975-09-10 | Evans Martin Ltd | Shackles |
| CN101327891A (en) * | 2007-06-22 | 2008-12-24 | 上海宝松重型机械工程有限公司 | Automatic coupling apparatus of gravity slab clamp |
| JP3174659U (en) * | 2012-01-20 | 2012-03-29 | マテハン株式会社 | Shackle and stopper |
| CN102515013A (en) * | 2011-12-29 | 2012-06-27 | 大连华锐重工集团股份有限公司 | Automatic hooking and unhooking device for hanger of crane |
| CN202897780U (en) * | 2012-10-16 | 2013-04-24 | 中国建筑第四工程局有限公司 | Elastic hanging ring buckle |
| CN203794447U (en) * | 2014-05-05 | 2014-08-27 | 大连华锐重工起重机有限公司 | Lifting appliance with automatic hooking and unhooking device |
| CN204751876U (en) * | 2015-06-26 | 2015-11-11 | 中化二建集团有限公司 | Simple gate is erected heavy -duty machine swift current tail and is taken off row integration special lifting device |
| CN205187644U (en) * | 2015-10-09 | 2016-04-27 | 徐州重型机械有限公司 | Hydraulic oil pump subassembly hoist device |
| CN205346625U (en) * | 2015-12-23 | 2016-06-29 | 中交一航局第三工程有限公司 | High altitude hoist and mount automatic unhooking device |
| CN106744310A (en) * | 2017-02-22 | 2017-05-31 | 湖北创联重工有限公司 | A kind of large-scale steel structure column hanging method |
| CN108217420A (en) * | 2018-02-07 | 2018-06-29 | 中铁科工集团轨道交通装备有限公司 | A kind of band is servo-actuated the retractable sling for container of support ring |
| CN108584675A (en) * | 2018-04-24 | 2018-09-28 | 长江大学 | A kind of anti-bending safty hoisting equipment of spiral moving axis |
| CN109607377A (en) * | 2019-02-15 | 2019-04-12 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of Quick bolt device based on heavy derricking gear |
| CN111268547A (en) * | 2020-03-31 | 2020-06-12 | 江苏核电有限公司 | Lifting appliance capable of eliminating horizontal deviation and resisting swinging |
-
2020
- 2020-08-25 CN CN202010863686.2A patent/CN112061949B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1405513A (en) * | 1973-06-05 | 1975-09-10 | Evans Martin Ltd | Shackles |
| CN101327891A (en) * | 2007-06-22 | 2008-12-24 | 上海宝松重型机械工程有限公司 | Automatic coupling apparatus of gravity slab clamp |
| CN102515013A (en) * | 2011-12-29 | 2012-06-27 | 大连华锐重工集团股份有限公司 | Automatic hooking and unhooking device for hanger of crane |
| JP3174659U (en) * | 2012-01-20 | 2012-03-29 | マテハン株式会社 | Shackle and stopper |
| CN202897780U (en) * | 2012-10-16 | 2013-04-24 | 中国建筑第四工程局有限公司 | Elastic hanging ring buckle |
| CN203794447U (en) * | 2014-05-05 | 2014-08-27 | 大连华锐重工起重机有限公司 | Lifting appliance with automatic hooking and unhooking device |
| CN204751876U (en) * | 2015-06-26 | 2015-11-11 | 中化二建集团有限公司 | Simple gate is erected heavy -duty machine swift current tail and is taken off row integration special lifting device |
| CN205187644U (en) * | 2015-10-09 | 2016-04-27 | 徐州重型机械有限公司 | Hydraulic oil pump subassembly hoist device |
| CN205346625U (en) * | 2015-12-23 | 2016-06-29 | 中交一航局第三工程有限公司 | High altitude hoist and mount automatic unhooking device |
| CN106744310A (en) * | 2017-02-22 | 2017-05-31 | 湖北创联重工有限公司 | A kind of large-scale steel structure column hanging method |
| CN108217420A (en) * | 2018-02-07 | 2018-06-29 | 中铁科工集团轨道交通装备有限公司 | A kind of band is servo-actuated the retractable sling for container of support ring |
| CN108584675A (en) * | 2018-04-24 | 2018-09-28 | 长江大学 | A kind of anti-bending safty hoisting equipment of spiral moving axis |
| CN109607377A (en) * | 2019-02-15 | 2019-04-12 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of Quick bolt device based on heavy derricking gear |
| CN111268547A (en) * | 2020-03-31 | 2020-06-12 | 江苏核电有限公司 | Lifting appliance capable of eliminating horizontal deviation and resisting swinging |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112061949B (en) | 2022-04-05 |
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