CN110540131A - Lifting appliance for lifting reactor core guide column - Google Patents
Lifting appliance for lifting reactor core guide column Download PDFInfo
- Publication number
- CN110540131A CN110540131A CN201910827118.4A CN201910827118A CN110540131A CN 110540131 A CN110540131 A CN 110540131A CN 201910827118 A CN201910827118 A CN 201910827118A CN 110540131 A CN110540131 A CN 110540131A
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- CN
- China
- Prior art keywords
- reactor core
- lifting
- core guide
- reset
- limiting
- 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
-
- 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
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention provides a lifting appliance for lifting a reactor core guide column in the lifting appliance field, which comprises a jaw mounting seat, wherein the outer side of the jaw mounting seat is hinged with at least two jaws for clamping the reactor core guide column, the upper end of the jaw mounting seat is fixedly connected with an inner bushing, the outer side of the inner bushing is sleeved with a clamping sleeve capable of moving up and down in the height direction, a sliding opening is formed in the jaw mounting seat, the jaw mounting seat is connected with a reset bolt through the sliding opening, the reset bolt can slide along the sliding opening, one side of the reset bolt, which is arranged relative to the jaws, is abutted against the jaws, the reset bolt is sleeved with a reset spring, one end of the reset spring is fixedly connected to the reset bolt, and the other end of the reset spring is connected to; the invention has convenient use and high safety and can be applied to the hoisting work of the reactor core guide post.
Description
Technical Field
The invention belongs to the technical field of lifting appliances, and particularly relates to a lifting appliance device of a guide post.
Background
The reactor core of the nuclear reactor is also called as a reactor active area and is composed of fuel assemblies arranged in a reactor core grid with a certain grid, the fuel assemblies are formed by assembling fuel elements which are made into certain shapes (plates, rods and pipes) according to certain grid arrangement through various components so as to meet the requirements of physics and thermal hydraulics, the reactor core guide column plays a role in guiding and positioning when the heavy components of the reactor core are hoisted, but the reactor core guide column is hoisted, the traditional method needs a worker to climb a long ladder in the reactor core area to disassemble, assemble and disassemble, the risk of the worker falling in high altitude is increased, the reactor core of the nuclear reactor has radiation risk, the safety risk of the worker is higher in the traditional operation, and therefore, the safe and effective hoisting of the reactor core guide column is very important.
The Chinese patent database discloses a pressurized water reactor nuclear power station reactor core guide post automatic lifting appliance with the patent name of 20190226, Chinese patent with the application publication number of CN 109390063A, the device comprises a lifting appliance center rod, a driving sleeve and a clamping jaw, wherein the lifting appliance center rod comprises a clamping jaw support with a step cylinder structure, a plurality of clamping grooves are uniformly distributed on the side wall of the lower part of the clamping jaw support, the clamping jaw is matched and installed in the clamping groove in the clamping jaw support through a pin shaft, the lifting appliance center rod is sleeved with the driving sleeve with the step cylinder structure, the circular arc of the inner wall of the driving sleeve is matched with the inclined arc surface at the outer side of the clamping jaw, the circular arc is converted into the transmission around the pin shaft of the clamping jaw through the up-and-down movement of the driving sleeve, thereby realizing the engagement and disengagement of the clamping tooth at the inner side of the clamping jaw and, after the driving sleeve is moved upwards, the clamping jaw cannot fast loosen the reactor core guide post, and workers need to manually turn the clamping jaw upwards to enable the clamping jaw to loosen the reactor core guide post, so that the operation is inconvenient, the nuclear reactor core has radiation risks, and the safety is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to overcome the defects in the prior art, solve the technical problem of inconvenient operation in the prior art and provide the lifting appliance for lifting the reactor core guide column.
The purpose of the invention is realized as follows: the utility model provides a hoist for hoisting reactor core guide post, includes the jack catch mount pad, the outside of jack catch mount pad articulates there are two at least jack catchs that are used for the centre gripping reactor core guide post, the upper end fixedly connected with neck bush of jack catch mount pad, the outside cover of neck bush is equipped with the clamping sleeve that can reciprocate at the direction of height, it has the slip mouth to open on the jack catch mount pad, and the jack catch mount pad is connected with reset bolt through the slip mouth, and reset bolt can slide along the slip mouth, and one side that reset bolt set up relative jack catch is contradicted on the jack catch, and the cover is equipped with reset spring on the reset bolt, and reset spring's one end fixed connection is on reset bolt, and reset spring's the other end is.
When the invention is used, the reactor core guide post is placed on the ground, the crane is controlled to lift the clamping jaw mounting seat to enable the clamping jaw to move towards the direction of the reactor core guide post, the reactor core guide post slowly enters the clamping jaw mounting seat, the clamping jaw is pushed by the reactor core guide post to rotate downwards, the clamping jaw inwards extrudes the reset bolt to enable the reset bolt to slide inwards along the sliding opening, the reset spring is compressed, when the clamping jaw can clamp the reactor core guide post, the clamping jaw is in a vertical state, at the moment, the clamping sleeve slides downwards under the action of gravity, the clamping sleeve clamps the clamping jaw, the reactor core guide post is clamped, during the hoisting and transportation of the reactor core guide post, the clamping sleeve cannot slide upwards, the clamping jaw firmly clamps the reactor core guide post, finally, the crane hoists the reactor core guide post to a proper position and then puts down, the clamping sleeve moves upwards, the reset spring drives the reset bolt to slide outwards along the sliding opening, the clamping jaw loosens the reactor core guide column, and at the moment, the next reactor core guide column can be hoisted; according to the invention, through the combined arrangement of the reset bolt and the reset spring, the clamping jaw can quickly loosen the reactor core guide post, the use is convenient, and the safety is high; the method can be applied to the hoisting work of the reactor core guide post.
In order to realize spacing to the clamping sleeve when the clamping jaw is clamped to the clamping sleeve, install the well core rod that can remove in the direction of height in the inside bushing, it has at least one spacing hole to open on the inside bushing, the spacer pin that can reciprocating motion on the left and right sides direction is installed through spacing hole to the inside bushing, and the spacer pin is contradicted on well core rod, and the cover is equipped with spacing spring on the spacer pin, and the one end of spacing spring is contradicted on the inside bushing, and the other end of spacing spring is contradicted and is stretched to well core rod's tip at the spacer pin, be equipped with at least one rake on the well core rod, when well core rod shifts up, spacing.
As a further improvement of the invention, the limiting pin is provided with a ball head bearing part, the other end of the limiting spring is abutted against the ball head bearing part, and the ball head bearing part is abutted against the central rod.
In order to facilitate operation, one end of the central rod, which extends out of the inner bushing upwards, is connected with a hanging ring, and the outer side of the clamping sleeve is provided with a connecting lug for connecting an operation rope.
In order to prevent the clamping sleeve from inclining up and down, a guide seat with a guide hole is further arranged on the outer side of the clamping sleeve, a guide rod extending downwards is further connected to the connecting frame, and the guide rod can move up and down in the guide hole.
As a further improvement of the invention, the upper side of the inner bushing is fixedly connected with a connecting frame, the connecting frame is provided with a connecting hole, and the operation rope passes through the connecting hole and is connected to the connecting lug.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a view from a-a of fig. 1.
Fig. 3 is a partially enlarged view of fig. 2 at B.
Fig. 4 is a partially enlarged view of C in fig. 2.
Fig. 5 is a top view of the present invention.
FIG. 6 is a schematic view of the structure of the present invention above the core guide post.
FIG. 7 is a schematic view of the structure of the center pole of the present invention.
Fig. 8 is a schematic structural view of a jaw mounting seat of the present invention.
In the figure: 1 center pole, 101 rake, 2 clamping sleeve, 201 engaging lug, 202 guide holder, 203 guiding hole, 3 interior bush, 301 spacing hole, 4 jack catch mount pads, 401 sliding opening, 5 jack catches, 6 spacer pins, 601 bulb portion of bearing, 7 spacing spring, 8 reset bolt, 9 reset spring, 10 rings, 11 link, 1101 connecting hole, 12 guide bars, 13 locating parts, 14 reactor core guide posts.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 8, a lifting appliance for lifting a reactor core guide column comprises a jaw mounting seat 4, at least two jaws 5 for clamping a reactor core guide column 14 are hinged to the outer side of the jaw mounting seat 4, an inner bushing 3 is fixedly connected to the upper end of the jaw mounting seat 4, one end of a central rod 1, which extends upwards from the inner bushing 3, is connected with a lifting ring 10, a guide seat 202 with a guide hole 203 is further arranged on the outer side of a clamping sleeve 2, a downwardly extending guide rod 12 is further connected to a connecting frame 11, the guide rod 12 can move up and down in the guide hole 203, a limiting part 13 is connected to the lower end of the guide rod 12, the upper side of the limiting part 13 can be abutted against the guide seat 202, a connecting lug 201 for connecting an operation rope is arranged on the outer side of the clamping sleeve 2, a connecting frame 11 is fixedly connected to the upper side of the inner bushing 3, a connecting hole 1101 is, the outer side of the inner bushing 3 is sleeved with a clamping sleeve 2 capable of moving up and down in the height direction, a sliding opening 401 is formed in the jaw mounting seat 4, the jaw mounting seat 4 is connected with a reset bolt 8 through the sliding opening 401, the reset bolt 8 can slide along the sliding opening 401, one side, opposite to the jaw 5, of the reset bolt 8 abuts against the jaw 5, a reset spring 9 is sleeved on the reset bolt 8, one end of the reset spring 9 is fixedly connected to the reset bolt 8, the other end of the reset spring 9 is connected to the jaw mounting seat 4, and when the reset spring 9 is in a natural state, the jaw 5 is in an open state; install well core rod 1 that can remove in the direction of height in the interior bush 3, it has at least one spacing hole 301 to open on the interior bush 3, the spacer pin 6 that can be at left right direction upward reciprocating motion is installed through spacing hole 301 to interior bush 3, spacer pin 6 conflicts on well core rod 1, the cover is equipped with spacing spring 7 on the spacer pin 6, the one end of spacing spring 7 is contradicted on interior bush 3, the other end of spacing spring 7 is contradicted and is stretched to well core rod 1 at spacer pin 6 on the tip, be equipped with at least one rake 101 on well core rod 1, when well core rod 1 moves up, spacing spring 7 is compressed gradually, be equipped with bulb supporting part 601 on the spacer pin 6, the other end of spacing spring 7 is contradicted on bulb supporting part 601, bulb supporting part 601 is contradicted on well core rod 1.
Before the invention is used, the reactor core guide post 14 is placed on the ground, the operating rope is connected to the connecting lug 201 through the connecting hole 1101, the operation is convenient, the crane is controlled to hoist the hanging ring 10, the jaw 5 moves towards the direction of the reactor core guide post 14, the reactor core guide post 14 slowly enters the jaw mounting seat 4, the reactor core guide post 14 pushes the jaw 5 to rotate downwards, the jaw 5 extrudes the reset bolt 8 inwards, the reset spring 9 is compressed, when the jaw 5 clamps the reactor core guide post 14, the jaw 5 is in a vertical state, at the moment, the clamping sleeve 2 slides downwards under the action of gravity, the guide seat 202 moves downwards relative to the guide rod 12, the clamping sleeve 2 clamps the jaw 5, the reactor core guide post 14 is clamped, the crane hoists the hanging ring 10 to move upwards, the hanging ring 10 is driven by the hanging ring 10 to move upwards, the guide rod 12 moves upwards in the guide hole 203, the limiting pin 6 is abutted against the inclined part 101, the inclined part 101 moves upwards, the limiting spring 7 is gradually compressed, the limiting pin 6 extends out of the limiting hole 301, when the limiting pin 6 abuts against the upper side of the clamping sleeve 2, and the clamping sleeve 2 is locked by the limiting pin 6, the upper side of the limiting piece 13 just abuts against the guide seat 202, the clamping sleeve 2 cannot slide upwards in the hoisting and transportation process of the reactor core guide post 14, the clamping jaw 5 firmly clamps the reactor core guide post 14, finally, a crane hoists the reactor core guide post 14 to a proper position and then puts down, the central rod 1 is free from stress, the central rod 1 moves downwards under the action of self gravity, the guide rod 12 moves downwards in the guide hole 203, the inclined part 101 moves downwards, the limiting pin 6 moves towards the inclined part 101 under the action of the limiting spring 7, the limiting pin 6 leaves the clamping sleeve 2, the operating rope is lifted upwards, the clamping sleeve 2 is pulled upwards by the operating rope, the fixed seat moves upwards along with the clamping sleeve 2, and the restoring force of the restoring spring 9 pushes the restoring, the reset bolt 8 pushes the jaw 5 to move outwards, the jaw 5 is opened, the jaw 5 loosens the reactor core guide column 14, and at the moment, the next reactor core guide column 14 can be hoisted; when the clamping jaw 5 clamps the reactor core guide column 14, the central rod 1 moves upwards to enable the limiting pin 6 to abut against the clamping sleeve 2, so that the clamping sleeve 2 is limited, and the clamping sleeve 2 further clamps the clamping jaw 5 in the hoisting process, so that the reactor core guide column 14 is prevented from being overweight or shaking in the moving process, and the reactor core guide column is safer and more reliable; the reset bolt 8 and the reset spring 9 are jointly arranged, so that the clamping jaw 5 can quickly loosen the reactor core guide column 14; the guide post is arranged to guide the clamping sleeve 2 when moving up and down, so as to prevent the clamping sleeve 2 from inclining; the method can be applied to the hoisting work of the reactor core guide post.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts based on the disclosed technical solutions, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (6)
1. The utility model provides a hoist for hoisting reactor core guide post, includes the jack catch mount pad, the outside of jack catch mount pad articulates there are two at least jack catchs that are used for the centre gripping reactor core guide post, its characterized in that, the upper end fixedly connected with neck bush of jack catch mount pad, the outside cover of neck bush is equipped with the clamping sleeve that can reciprocate at the direction of height, it has the slip mouth to open on the jack catch mount pad, and the jack catch mount pad is connected with reset bolt through the slip mouth, and reset bolt can slide along the slip mouth, and one side that the relative jack catch of reset bolt set up is contradicted on the jack catch, and reset bolt is last to be equipped with reset spring, and reset spring's one end fixed connection is on reset bolt, and reset spring's the other.
2. The lifting appliance for lifting the guide post of the reactor core as claimed in claim 1, wherein the inner liner is internally provided with a central rod which can move in the height direction, the inner liner is provided with at least one limiting hole, the inner liner is provided with a limiting pin which can move back and forth in the left and right directions through the limiting hole, the limiting pin abuts against the central rod, the limiting pin is sleeved with a limiting spring, one end of the limiting spring abuts against the inner liner, the other end of the limiting spring abuts against the end part of the limiting pin extending to the central rod, the central rod is provided with at least one inclined part, and when the central rod moves upwards, the limiting spring is gradually compressed.
3. The lifting tool for lifting the reactor core guide post as recited in claim 2, wherein the limiting pin is provided with a ball bearing part, the other end of the limiting spring abuts against the ball bearing part, and the ball bearing part abuts against the central rod.
4. The lifting appliance for lifting the reactor core guide column as claimed in claim 2 or 3, wherein one end of the central rod, which extends upwards out of the inner bushing, is connected with a lifting ring, and the outer side of the clamping sleeve is provided with a connecting lug for connecting an operating rope.
5. The lifting tool for lifting the reactor core guide post as claimed in claim 1, wherein a guide seat having a guide hole is further provided outside the clamping sleeve, and a downwardly extending guide rod is further connected to the connection frame, and the guide rod can move up and down in the guide hole.
6. The lifting appliance for lifting the reactor core guide column as claimed in claim 1, wherein a connecting frame is fixedly connected to the upper side of the inner liner, a connecting hole is formed in the connecting frame, and the operating rope passes through the connecting hole and is connected to the connecting lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910827118.4A CN110540131B (en) | 2019-09-03 | 2019-09-03 | Lifting appliance for lifting reactor core guide column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910827118.4A CN110540131B (en) | 2019-09-03 | 2019-09-03 | Lifting appliance for lifting reactor core guide column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110540131A true CN110540131A (en) | 2019-12-06 |
| CN110540131B CN110540131B (en) | 2021-04-13 |
Family
ID=68712476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910827118.4A Active CN110540131B (en) | 2019-09-03 | 2019-09-03 | Lifting appliance for lifting reactor core guide column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110540131B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116986462A (en) * | 2023-09-22 | 2023-11-03 | 河南科技学院 | Special lifting appliance for bar-type workpiece crane |
| CN117228502A (en) * | 2023-11-10 | 2023-12-15 | 三峡金沙江云川水电开发有限公司 | Hoisting device for mounting hydropower station gate |
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| US3981673A (en) * | 1974-09-25 | 1976-09-21 | Beloit Corporation | Parison transfer means |
| CN202301329U (en) * | 2011-08-26 | 2012-07-04 | 祝贵佳 | Locking mechanism and lifting rod |
| CN203048404U (en) * | 2013-01-24 | 2013-07-10 | 绍兴恒君微电子科技有限公司 | Lifting claw for enamelled wire spool |
| CN203065015U (en) * | 2012-12-05 | 2013-07-17 | 兴化市东旭机械有限公司 | Hoisting clamp of petroleum drill bit |
| CN105782179A (en) * | 2016-04-13 | 2016-07-20 | 叶绍靖 | Convenient elastic fastening mechanism |
| CN206626057U (en) * | 2017-03-30 | 2017-11-10 | 西安科技大学 | A kind of anticreep latch |
| CN109390063A (en) * | 2018-11-06 | 2019-02-26 | 中核核电运行管理有限公司 | A kind of pressurized-water reactor nuclear power plant reactor core guide post Automatic hook block |
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2019
- 2019-09-03 CN CN201910827118.4A patent/CN110540131B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3981673A (en) * | 1974-09-25 | 1976-09-21 | Beloit Corporation | Parison transfer means |
| CN202301329U (en) * | 2011-08-26 | 2012-07-04 | 祝贵佳 | Locking mechanism and lifting rod |
| CN203065015U (en) * | 2012-12-05 | 2013-07-17 | 兴化市东旭机械有限公司 | Hoisting clamp of petroleum drill bit |
| CN203048404U (en) * | 2013-01-24 | 2013-07-10 | 绍兴恒君微电子科技有限公司 | Lifting claw for enamelled wire spool |
| CN105782179A (en) * | 2016-04-13 | 2016-07-20 | 叶绍靖 | Convenient elastic fastening mechanism |
| CN206626057U (en) * | 2017-03-30 | 2017-11-10 | 西安科技大学 | A kind of anticreep latch |
| CN109390063A (en) * | 2018-11-06 | 2019-02-26 | 中核核电运行管理有限公司 | A kind of pressurized-water reactor nuclear power plant reactor core guide post Automatic hook block |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116986462A (en) * | 2023-09-22 | 2023-11-03 | 河南科技学院 | Special lifting appliance for bar-type workpiece crane |
| CN116986462B (en) * | 2023-09-22 | 2024-01-19 | 河南科技学院 | Special lifting appliance for bar-type workpiece crane |
| CN117228502A (en) * | 2023-11-10 | 2023-12-15 | 三峡金沙江云川水电开发有限公司 | Hoisting device for mounting hydropower station gate |
| CN117228502B (en) * | 2023-11-10 | 2024-03-29 | 三峡金沙江云川水电开发有限公司 | Hoisting device for mounting hydropower station gate |
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| Publication number | Publication date |
|---|---|
| CN110540131B (en) | 2021-04-13 |
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