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Rotating equipment foundation natural frequency adjusting device and adjusting method thereof

A technology of natural frequency and adjustment device, applied in the direction of mechanical equipment, engine base, supporting machine, etc., can solve the problem of rotating equipment away from the resonance area, etc., and achieve the effect of simple structure and easy implementation.

Pending Publication Date: 2019-11-22
JIANGSU NUCLEAR POWER CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a natural frequency adjustment device and method for adjusting the natural frequency of the rotating equipment foundation in view of the above-mentioned deficiencies in the prior art. The foundation stiffness is adjusted by internal support and external pressure on the existing rotating equipment foundation to increase the natural frequency, thereby Solve the technical problem that the rotating equipment is far away from the resonance zone during operation

Method used

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  • Rotating equipment foundation natural frequency adjusting device and adjusting method thereof
  • Rotating equipment foundation natural frequency adjusting device and adjusting method thereof
  • Rotating equipment foundation natural frequency adjusting device and adjusting method thereof

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Embodiment Construction

[0022] The technology of the present invention is further described below:

[0023] Such as Figures 1 to 3 As shown, a device for adjusting the natural frequency of the foundation of rotating equipment includes: equipment foundation base 7, several ribs 4, screw jacks, screw rods 5, and nuts B 6; each screw jack includes: a screw jack The female part 1, a screw jack male part 2 and several nuts A3, the screw jack female part 1 and the screw jack male part 2 are threaded through the nut A3; the rib plate 4 and the screw rod 5 are threaded through the nut B6 A frame structure is formed and placed outside the equipment foundation base 7, and the screw jack is axially loaded into the equipment base base 7 interior.

[0024] The screw jack female part 1 is axially provided with threaded holes; the radial outer surface of the screw jack female part 1 is processed with hexagons for wrench fastening; the screw jack male part 2 is axially provided with a screw rod for connecting with...

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Abstract

The invention belongs to the technical field of vibration management engineering for large-scale rotating equipment of nuclear power plants, and particularly relates to a rotating equipment foundationnatural frequency adjusting device and an adjusting method thereof. An equipment foundation base, a plurality of rib plates, screw jacks, screw rods and nuts B are included; each screw jack includesa screw jack female piece, a screw jack male piece and a plurality of nuts A, wherein the screw jack female piece and the screw jack male piece are in threaded connection through the nuts A; the rib plates and the screw rods are in threaded connection through the nuts B to form a frame structure to be placed outside the equipment foundation base, and the screw jacks are axially installed into theequipment foundation base. By means of the rotating equipment foundation natural frequency adjusting device and the adjusting method, the foundation stiffness of existing rotating equipment foundations is adjusted in internally-supporting and externally-pressing manners, the natural frequency is increased, and the technical problem of staying away from a resonance zone is solved.

Description

technical field [0001] The invention belongs to the technical field of vibration control engineering for large-scale rotating equipment in nuclear power plants, and in particular relates to a device for adjusting the natural frequency of the foundation of rotating equipment and an adjusting method thereof. Background technique [0002] During the operation of large-scale rotating equipment, its vibration level is an important technical index to verify the operating state of the equipment. If the vibration is too large, it will reduce the service life of the equipment, cause the equipment to be damaged to varying degrees, and directly affect the corresponding equipment and system. Safe and stable operation. Therefore, it is necessary to design a device for adjusting the fundamental natural frequency of rotating equipment and an adjusting method thereof, so as to improve the above-mentioned technical problems. Contents of the invention [0003] The object of the present inv...

Claims

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Application Information

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IPC IPC(8): F16M5/00
CPCF16M5/00
Inventor 刘永生杨运忠孙忠志李健牛培宇李建田朱可欣高洪尧田斌李明玖张微韩昇奎昝映辉
Owner JIANGSU NUCLEAR POWER CORP
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