CN215854599U - Special lifting device of nuclear power plant personnel gate motor - Google Patents
Special lifting device of nuclear power plant personnel gate motor Download PDFInfo
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- CN215854599U CN215854599U CN202121169311.2U CN202121169311U CN215854599U CN 215854599 U CN215854599 U CN 215854599U CN 202121169311 U CN202121169311 U CN 202121169311U CN 215854599 U CN215854599 U CN 215854599U
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- nuclear power
- personnel gate
- hoisting tool
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Abstract
The utility model provides a special lifting device of nuclear power plant personnel gate motor, includes the slip pendant, and the slip pendant passes through the connecting pin, the couple is connected with adjusting screw, and the adjusting screw hypomere is connected balance mechanism, and the chain is connected to the motor cassette, and there is the motor couple chain lower extreme. The tool is convenient to operate, low in manufacturing cost and good in practicability and stability, provides good overhauling conditions for overhauling the nuclear power plant personnel gate, and saves a large amount of valuable time for overhauling emergency and sudden defects of the personnel gate especially in the uplink and downlink process of a unit.
Description
Technical Field
The invention relates to the field of maintenance machinery, in particular to a special hoisting tool for a personnel gate motor of a nuclear power plant.
Background
When the personnel lock is in operation of the power station or is in thermal shutdown: personnel and small equipment pass through the containment without damaging the sealing function of the containment, and radioactive substances are prevented from leaking and diffusing in a control area; in case of an accident: as an exit for emergency evacuation of personnel; when cold shutdown is performed, the gate is unlocked, and the two doors are opened simultaneously and can be used as passages for personnel and small equipment to enter and exit the containment vessel; the personnel gate is a safety secondary device, and must be capable of bearing the environmental conditions of a containment vessel under the design standard accident of a reactor, bearing the extreme safety earthquake and keeping the sealing performance under the normal and accident conditions. In order to ensure the reliability of the transmission mechanism, related parts of the transmission mechanism have to be stable and reliable, particularly, the usability of a rotating mechanism of a personnel gate is ensured, a special tool for hoisting a personnel gate motor is specially made, the transmission mechanism gear box is ensured to be well maintained, time is saved for maintaining the motor and the gear box when the transmission mechanism gear box is defective, and the maintenance time is particularly important because the personnel gate is used during overhaul.
At present, no better maintenance scheme and lifting tool exist temporarily in the aspects of maintenance of the personnel gate gear box and the motor, so that the technical problem of solving the type of technical problem is solved by the special tool.
Disclosure of Invention
The invention aims to: the containment vessel is an important barrier for preventing radioactive substances from leaking out of the nuclear power station and is also the last barrier. The personnel lock is an important penetration piece of the containment.
The problem that the gate cannot be normally opened and closed frequently occurs in the current nuclear power plant personnel gate during overhaul, most of defects are that the gate cannot be normally opened and closed due to the fact that a transmission mechanism of the gate has a problem, personnel entering and exiting in a nuclear island are affected, and further a main line plan is affected, so that main line delay is caused, if a driving mechanism or a driving motor has a problem, a large amount of time is needed for disassembling and checking a bearing box and the motor, if the primary task of an overhaul project needs to be carried out, the motor needs to be disassembled, but due to the limited space (the fact that scaffolds and other weighing hoisting points cannot be set up) and the particularity of the space in a personnel gate cabin, the special personnel gate transmission motor hoisting tool is designed, overhaul efficiency is improved, and overhaul time is saved.
The technical scheme of the invention is as follows: the utility model provides a special lifting device of nuclear power plant personnel gate motor, includes the slip pendant, and the slip pendant passes through the connecting pin, the couple is connected with adjusting screw, and the adjusting screw hypomere is connected balance mechanism, and the chain is connected to the motor cassette, and there is the motor couple chain lower extreme.
The adjusting screw rod is adjusted to realize the adjustment of the vertical distance of the motor.
The balance mechanism and the motor clamping seat form a motor fixing mechanism.
The chain has a plurality of chains.
The number of chains is 2.
The number of chains is 3.
There are 4 chains in total.
The horizontal distance adjustment of motor is realized to the slip pendant.
The sliding hanging piece bears the weight of the motor.
The chain is welded with the motor hook.
The invention has the following remarkable effects: the tool is convenient to operate, low in manufacturing cost and good in practicability and stability, provides good overhauling conditions for overhauling the nuclear power plant personnel gate, and saves a large amount of valuable time for overhauling emergency and sudden defects of the personnel gate especially in the uplink and downlink process of a unit.
The tool can effectively solve the problem of difficulty in overhauling the position motor and the gear box, and is low in cost, convenient to manufacture and high in reliability.
Drawings
FIG. 1 is a schematic of the present invention;
in the figure: 1 sliding hanger, 2 adjusting screw rods, 3 connecting pins, 4 balance mechanisms, 5 chains, 6 motor clamping seats and 7 motor hooks
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
The utility model provides a special lifting device of nuclear power plant personnel gate motor, including slip pendant 1, slip pendant 1 passes through connecting pin 3, couple 8 is connected with adjusting screw 2, the portable bearing mechanism totality of slip pendant bears motor weight, wherein realize the front and back adjustment function at the angle steel in the top through its slip mode, adjusting screw 2 adjusting screw realizes the vertical distance adjustment of motor, 2 hypomere of adjusting screw connect balance mechanism 4, motor cassette 6 constitutes motor fixed establishment, motor cassette 6 connects chain 5, 5 total many of chain, 5 lower extremes of chain have motor couple 7.
When an executive gate motor or a gear box works, the effect of quickly entering the maintenance process can be achieved by using the tool, the maintenance time is greatly saved, and about 6 hours are saved for a main line of overhaul of a nuclear power plant.
Through the use of this instrument, can solve the unable condition of overhauing at present of personnel's gate driving motor and gear box to ensure overhaul efficiency, guarantee the planned compactedness of unit overhaul, reduce the running cost of power plant.
By using the tool, the problem of current opening drift of the air supply and exhaust valve of the nuclear island can be solved, the overhaul efficiency is ensured, the temperature stability of the relevant rooms of the nuclear island and the normal operation of equipment are ensured, and the operation cost of a power plant is reduced.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a special lifting device of nuclear power plant personnel gate motor which characterized in that: the motor hanging piece comprises a sliding hanging piece (1), wherein the sliding hanging piece (1) is connected with an adjusting screw rod (2) through a connecting pin (3) and a hook (8), the lower section of the adjusting screw rod (2) is connected with a balance mechanism (4), a motor clamping seat (6) is connected with a chain (5), and a motor hook (7) is arranged at the lower end of the chain (5).
2. The hoisting tool special for the personnel gate motor of the nuclear power plant as claimed in claim 1, characterized in that: the adjusting screw rod (2) adjusts the vertical distance of the motor.
3. The hoisting tool special for the personnel gate motor of the nuclear power plant as claimed in claim 1, characterized in that: the balance mechanism (4) and the motor clamping seat (6) form a motor fixing mechanism.
4. The hoisting tool special for the personnel gate motor of the nuclear power plant as claimed in claim 1, characterized in that: the chain (5) has a plurality of chains.
5. The hoisting tool special for the personnel gate motor of the nuclear power plant as claimed in claim 4, wherein: the number of the chains (5) is 2.
6. The hoisting tool special for the personnel gate motor of the nuclear power plant as claimed in claim 4, wherein: the number of the chains (5) is 3.
7. The hoisting tool special for the personnel gate motor of the nuclear power plant as claimed in claim 4, wherein: the chains (5) are 4 in total.
8. The hoisting tool special for the personnel gate motor of the nuclear power plant as claimed in claim 1, characterized in that: the sliding hanger 1 realizes the horizontal distance adjustment of the motor.
9. The hoisting tool special for the personnel gate motor of the nuclear power plant as claimed in claim 1, characterized in that: the sliding hanging piece (1) bears the weight of the motor.
10. The hoisting tool special for the personnel gate motor of the nuclear power plant as claimed in claim 1, characterized in that: the chain (5) is welded with the motor hook (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121169311.2U CN215854599U (en) | 2021-05-28 | 2021-05-28 | Special lifting device of nuclear power plant personnel gate motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121169311.2U CN215854599U (en) | 2021-05-28 | 2021-05-28 | Special lifting device of nuclear power plant personnel gate motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215854599U true CN215854599U (en) | 2022-02-18 |
Family
ID=80313405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121169311.2U Active CN215854599U (en) | 2021-05-28 | 2021-05-28 | Special lifting device of nuclear power plant personnel gate motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215854599U (en) |
-
2021
- 2021-05-28 CN CN202121169311.2U patent/CN215854599U/en active Active
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