Nuclear power plant emergency diesel generator rotor driving end supporting tool
A technology for diesel generators and driving ends, which is applied in the manufacture of stator/rotor bodies, etc., which can solve problems such as damaged couplings and eccentric wear of non-driving end bearing bushes, and achieve the effect of facilitating maintenance and avoiding damage
Pending Publication Date: 2021-04-09
CNNC FUJIAN FUQING NUCLEAR POWER
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Problems solved by technology
[0002] At present, the 20V956TB33 emergency diesel engine of the nuclear power plant is equipped with the 1DU1540-4AD02-Z generator. When the bearing bush at the drive end of the generator needs to be removed due to preventive maintenance or defect elimination, the coupling between the diesel engine and the generator can only be kept connected. The weight of the generator rotor of about 7 tons is pressed on the non-drive end bearing bush, relying on the support of the coupling and the non-drive end bearing bush, it is very likely to damage the fastening bolts of the coupling, and it may also cause the non-drive end bearing bush to be damaged. Eccentric wear due to unbalanced weight
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[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] Such as figure 1 A nuclear power plant emergency diesel generator rotor drive end support tool shown includes a semicircular support frame 1, a manual hydraulic pump 2, a hydraulic jack 3, and a bottom support.
[0028] The bottom support is placed above the two bases of the generator.
[0029] The hydraulic jack 3 is placed above the bottom support, and the jacking height is adjusted by the manual hydraulic pump 2 .
[0030] The semicircular support frame 1 is a rectangular block, and a semicircular groove is processed on its upper part, which is used to support the main shaft of the generator to avoid sliding or shaking of the main shaft of the generator during maintenance.
[0031] The width of the semicircular support frame 1 is larger than the diameter of the main shaft of the generator, and the diameter of the semicircu...
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The invention relates to the technical field of nuclear power maintenance, and particularly discloses a nuclear power plant emergency diesel generator rotor driving end supporting tool. A bottom support is arranged above two bases of a generator; a hydraulic jack is arranged above the bottom support, and a jacking height is adjusted through a manual hydraulic pump; a semi-circular groove is formed in the upper part of a semi-circular support frame and is used for supporting a generator main shaft; and the semi-circular support frame is arranged above the hydraulic jack. The supporting tool can provide support for a generator rotor of an emergency diesel engine, and a situation that a coupler or a non-driving end bearing bush is damaged due to the fact that the driving end of the rotor is not supported and cannot be stressed is avoided.
Description
technical field [0001] The invention belongs to the technical field of nuclear power maintenance, and in particular relates to a supporting tool for a driving end of a rotor of a nuclear power plant emergency diesel generator. Background technique [0002] At present, the 20V956TB33 emergency diesel engine of the nuclear power plant is equipped with the 1DU1540-4AD02-Z generator. When the bearing bush at the drive end of the generator needs to be removed due to preventive maintenance or defect elimination, the coupling between the diesel engine and the generator can only be kept connected. The weight of the generator rotor of about 7 tons is pressed on the non-drive end bearing bush, relying on the support of the coupling and the non-drive end bearing bush, it is very likely to damage the fastening bolts of the coupling, and it may also cause the non-drive end bearing bush to be damaged. Eccentric wear due to unbalanced weight. [0003] Therefore, there is an urgent need to...
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IPC IPC(8): H02K15/02
CPCH02K15/02
Inventor 余泽辉闵济东赖斌生王飞龙杨立群
Owner CNNC FUJIAN FUQING NUCLEAR POWER