CN203653123U - Lifting mechanism used for assembling or disassembling primary side manhole cover plate of steam generator - Google Patents
Lifting mechanism used for assembling or disassembling primary side manhole cover plate of steam generator Download PDFInfo
- Publication number
- CN203653123U CN203653123U CN201320817701.5U CN201320817701U CN203653123U CN 203653123 U CN203653123 U CN 203653123U CN 201320817701 U CN201320817701 U CN 201320817701U CN 203653123 U CN203653123 U CN 203653123U
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- Prior art keywords
- lift system
- control
- primary side
- reel
- plate
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- 238000009434 installation Methods 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of nuclear plant tools and equipment, and particularly relates to an auxiliary installation and lifting tool used for achieving lifting and descending of a manhole cover plate when a primary side manhole cover plate of a steam generator of a nuclear plant is opened and closed. A lifting mechanism used for assembling or disassembling the primary side manhole cover plate of the steam generator comprises a positioning and locking portion, a hoisting and lifting portion and a control portion. The positioning and locking portion is used for achieving positioning and installing of the lifting mechanism on the manhole cover plate, and comprises a fixing bottom plate, a fixing support, a positioning column and a locking and fixing part. The hoisting and lifting portion is divided into two sets, each set comprises a servo motor, a worm gear reducer and a spool. The control portion comprises a control box, a control cable and a manual operation box. The whole lifting mechanism is compact in structure, stable in motion, safe and reliable, and personnel radiant level is low or personnel radiation hardly exists.
Description
Technical field
The invention belongs to nuclear station tooling device technical field, be specifically related to one and nuclear power plant evaporator primary side manhole in the time that switch cover operates, realize lifting to manhole plate and the auxiliary installation hoist tool of decline work.
Background technology
In the time carrying out the operation of primary side of steam generator manhole switch cover, because the cover plate of manhole door is heavier, need to be used for realizing by the alternative manpower of a kind of special tool lifting and the release work of cover plate.While uncapping, manhole cover need to be removed and put to transport trolley from manhole flange; Close while lid and manhole cover need to be promoted and close manhole flange face.This promotes or decline work, is completed at the hand-held effector of a side away from steam generator by operating personal, and this mode of operation reduces labour intensity and the raying dosage of operating personal greatly, and saves the set-up time.
Domestic nuclear power uses the lift system of primary side of steam generator manhole plate at present, is mainly manpower manual mode, and installation process complexity and labour intensity are high, and personal radiation dose is large.Therefore, need a kind of novel electric hoisting mechanism of development badly, on mounting means, simplify, by adopt electrodynamic type structure to prevent from, because of the too heavy risk that causes occurring manhole plate landing of manhole plate, saving the set-up time simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of electric hoisting mechanism of installation or removal primary side of steam generator manhole plate, realize automatic lifting or the decline work of primary side of steam generator manhole plate, facilitate the installation or removal work of follow-up manhole cover, thereby simplification mounting means, saves the set-up time.
In order to realize this purpose, the technical scheme that the present invention takes is:
A lift system for installation or removal primary side of steam generator manhole plate, comprises three component parts, respectively: positioning and locking part, hoisting part and control part.
(1) positioning and locking part
Positioning and locking part realizes the location and installation of lift system on manhole plate, comprises fixed base plate, fixed support, registration mast and the parts that are locked; Wherein, fixed base plate, as the main supporting part of lift system, is arranged on the top of lift system, and fixed support, registration mast and fastener are set thereon; Two fixed supports are installed in parallel on fixed base plate, for supporting the installation of reel and worm type of reduction gearing; Registration mast is arranged on fixed base plate, coordinates to realize the automatic centering of primary side manhole plate with hole corresponding on primary side manhole plate; The parts that are locked are made up of 4 fasteners and 4 latches that are arranged on fixed base plate periphery, by fastener, primary side manhole plate and lift system are fixed; The latch being arranged on fixed base plate makes the state of fastener in opening or closing by the hole of inserting diverse location on fastener.
(2) hoisting part
Hoisting part is divided into two groups, and every group comprises 1 servomotor, 1 worm type of reduction gearing and 1 reel; Wherein, worm type of reduction gearing is arranged on fixed support by screw, and its output shaft is connected with reel, for driving reel; The output shaft of servomotor is connected with the input shaft of worm type of reduction gearing, for whole lift system provides power; Each reel is provided with two steel wires, fixes by pressing plate and reel; On each reel, the direction of winding of two steel wires is contrary, to realize the synchronization lifting of two steel wires; Two groups of hoisting parts independent control respectively, makes manhole plate produce, and realizes automatic centering through registration mast when lifting.
(3) control part
Control part is made up of control box, control cables and handheld box; Wherein, in control box, comprise actuator and the control circuit of two servomotors, for two of lift system servomotors are controlled; Control cables is used for connecting control box and lift system, control signal is transferred to two servomotors of lift system; Handheld box is connected with control box by cable, controls forward, reversion and anxious the stopping of two servomotors.
The utlity model has following good effect: the screw by primary side of steam generator manhole flange face positions, the dipping and heaving that realizes the elevator to steel rope and then drive whole cover plate by operating 2 lifting motors.The inclination of being drawn in 1 side steel rope and realized cover plate by independent control 1 motor wherein, then Synchronous lifting is realized the flange face of pressing close to of manhole plate, completes the installation or removal function to evaporator primary side manhole plate.The compact conformation of whole lift system, stable action, safe and reliable, personnel's radiant quantity is few or substantially do not have.
Accompanying drawing explanation
Fig. 1 is electric hoisting mechanism structural representation.
In figure: 1-fastener, 2-fixed base plate, 3-reel, 4-registration mast, 5-fixed support, 6-worm type of reduction gearing, 7-servomotor.
The specific embodiment
Below in conjunction with accompanying drawing, technical solutions of the utility model are further elaborated.Below in conjunction with accompanying drawing 1, the utility model is described in detail.
As shown in Figure 1, the lift system of a kind of installation or removal primary side of steam generator of the utility model manhole plate, comprises three component parts, respectively: positioning and locking part, hoisting part and control part.
(1) positioning and locking part
Positioning and locking part realizes the location and installation of lift system on manhole plate, comprises fixed base plate, fixed support, registration mast and the parts that are locked; Wherein, fixed base plate, as the main supporting part of lift system, is arranged on the top of lift system, and fixed support, registration mast and fastener are set thereon; Two fixed supports are installed in parallel on fixed base plate, for supporting the installation of reel and worm type of reduction gearing; Registration mast is arranged on fixed base plate, coordinates to realize the automatic centering of primary side manhole plate with hole corresponding on primary side manhole plate; The parts that are locked are made up of 4 fasteners and 4 latches that are arranged on fixed base plate periphery, by fastener, primary side manhole plate and lift system are fixed; The latch being arranged on fixed base plate makes the state of fastener in opening or closing by the hole of inserting diverse location on fastener.
(2) hoisting part
Hoisting part is divided into two groups, and every group comprises 1 servomotor, 1 worm type of reduction gearing and 1 reel; Wherein, worm type of reduction gearing is arranged on fixed support by screw, and its output shaft is connected with reel, for driving reel; The output shaft of servomotor is connected with the input shaft of worm type of reduction gearing, for whole lift system provides power; Each reel is provided with two steel wires, fixes by pressing plate and reel; On each reel, the direction of winding of two steel wires is contrary, to realize the synchronization lifting of two steel wires; Two groups of hoisting parts independent control respectively, makes manhole plate produce, and realizes automatic centering through registration mast when lifting.
(3) control part
Control part is made up of control box, control cables and handheld box; Wherein, in control box, comprise actuator and the control circuit of two servomotors, for two of lift system servomotors are controlled; Control cables is used for connecting control box and lift system, control signal is transferred to two servomotors of lift system; Handheld box is connected with control box by cable, controls forward, reversion and anxious the stopping of two servomotors.
Claims (1)
1. a lift system for installation or removal primary side of steam generator manhole plate, is characterized in that: comprise three component parts, respectively: positioning and locking part, hoisting part and control part;
(1) positioning and locking part
Positioning and locking part realizes the location and installation of lift system on manhole plate, comprises fixed base plate, fixed support, registration mast and the parts that are locked;
Wherein, fixed base plate, as the main supporting part of lift system, is arranged on the top of lift system, and fixed support, registration mast and fastener are set thereon;
Two fixed supports are installed in parallel on fixed base plate, for supporting the installation of reel and worm type of reduction gearing;
Registration mast is arranged on fixed base plate, coordinates to realize the automatic centering of primary side manhole plate with hole corresponding on primary side manhole plate;
The parts that are locked are made up of 4 fasteners and 4 latches that are arranged on fixed base plate periphery, by fastener, primary side manhole plate and lift system are fixed;
The latch being arranged on fixed base plate makes the state of fastener in opening or closing by the hole of inserting diverse location on fastener;
(2) hoisting part
Hoisting part is divided into two groups, and every group comprises 1 servomotor, 1 worm type of reduction gearing and 1 reel;
Wherein, worm type of reduction gearing is arranged on fixed support by screw, and its output shaft is connected with reel, for driving reel;
The output shaft of servomotor is connected with the input shaft of worm type of reduction gearing, for whole lift system provides power;
Each reel is provided with two steel wires, fixes by pressing plate and reel; On each reel, the direction of winding of two steel wires is contrary, to realize the synchronization lifting of two steel wires;
Two groups of hoisting parts independent control respectively, makes manhole plate produce, and realizes automatic centering through registration mast when lifting;
(3) control part
Control part is made up of control box, control cables and handheld box;
Wherein, in control box, comprise actuator and the control circuit of two servomotors, for two of lift system servomotors are controlled;
Control cables is used for connecting control box and lift system, control signal is transferred to two servomotors of lift system;
Handheld box is connected with control box by cable, controls forward, reversion and anxious the stopping of two servomotors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320817701.5U CN203653123U (en) | 2013-12-12 | 2013-12-12 | Lifting mechanism used for assembling or disassembling primary side manhole cover plate of steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320817701.5U CN203653123U (en) | 2013-12-12 | 2013-12-12 | Lifting mechanism used for assembling or disassembling primary side manhole cover plate of steam generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203653123U true CN203653123U (en) | 2014-06-18 |
Family
ID=50919537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320817701.5U Expired - Lifetime CN203653123U (en) | 2013-12-12 | 2013-12-12 | Lifting mechanism used for assembling or disassembling primary side manhole cover plate of steam generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203653123U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710644A (en) * | 2016-11-28 | 2017-05-24 | 中核核电运行管理有限公司 | Voltage stabilizer manhole cover plate locating device of nuclear power unit |
| CN107363777A (en) * | 2017-07-20 | 2017-11-21 | 中国核动力研究设计院 | For steam generator Manhole Sealing Joints pad and the dismantling device of pad pressing plate |
| CN109956433A (en) * | 2017-12-22 | 2019-07-02 | 中核核电运行管理有限公司 | A kind of nuclear power unit primary side of steam generator cover plate for manhole lifting device |
-
2013
- 2013-12-12 CN CN201320817701.5U patent/CN203653123U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710644A (en) * | 2016-11-28 | 2017-05-24 | 中核核电运行管理有限公司 | Voltage stabilizer manhole cover plate locating device of nuclear power unit |
| CN106710644B (en) * | 2016-11-28 | 2018-11-02 | 中核核电运行管理有限公司 | A kind of nuclear power generating sets voltage-stablizer cover plate for manhole positioning device |
| CN107363777A (en) * | 2017-07-20 | 2017-11-21 | 中国核动力研究设计院 | For steam generator Manhole Sealing Joints pad and the dismantling device of pad pressing plate |
| CN107363777B (en) * | 2017-07-20 | 2019-02-26 | 中国核动力研究设计院 | For steam generator Manhole Sealing Joints gasket and the dismantling device of gasket pressing plate |
| CN109956433A (en) * | 2017-12-22 | 2019-07-02 | 中核核电运行管理有限公司 | A kind of nuclear power unit primary side of steam generator cover plate for manhole lifting device |
| CN109956433B (en) * | 2017-12-22 | 2023-10-20 | 中核核电运行管理有限公司 | Nuclear power unit steam generator primary side manhole cover plate lifting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |