Special hammer device for nuclear power station

A special force, nuclear power plant technology, applied in the field of nuclear engineering, can solve problems such as the difficulty in implementing monitoring and diagnosis of loose parts, complex system structure, etc., and achieve the effects of light weight, long effective stroke and high precision

Inactive Publication Date: 2013-06-12
HANGZHOU DIANZI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the complex structure of the system, and in the environment of high temperature, high pressure and radiation, it is difficult to implement the monitoring and diagnosis of loose parts

Method used

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  • Special hammer device for nuclear power station

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Embodiment Construction

[0025] Such as figure 1 As shown, a special hammer device for nuclear power plants includes a DC motor 1, a roller 2, a lifting cam 3, an impact rod 4, a spring 5, an impact head 6, a motor seat 7, a base 8, a bolt 9, an impact rod sliding sleeve 10, Spring retaining ring 11, impact rod sliding sleeve seat 12 and cover plate 13.

[0026] The DC motor 1 is fixedly mounted on the base 8 through the motor base 7, the output rod of the DC motor 1 is provided with a lifting cam 3, the lifting cam 3 is connected with the roller 2, and the roller shaft of the roller 2 passes through the impact One end of the rod 6 is fixed by a bolt 9, an elastic washer is arranged between the bolt 9 and the impact rod 4, the lower bottom surface of the base 8 is fixedly connected with one end of the impact rod sliding sleeve 10, and the other end of the impact rod sliding sleeve 10 One end is provided with a cover plate 13, the impact rod 4 passes through the base plate and the impact rod s...

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Abstract

The invention discloses a special hammer device for a nuclear power station. A direct-current motor is fixedly installed on a base through a motor seat, an output rod of the direct-current motor is provided with a lifting cam, the lifting cam is in fit connection with a roller, a roller shaft of the roller penetrates through one end of an impact rod and is fixed through a bolt, an elastic washer is arranged between the bolt and the impact rod, the lower bottom surface of the base is fixedly connected with one end of a slide sleeve of the impact rod, the other end of the slide sleeve of the impact rod is provided with a cover plate, the impact rod penetrates through a soleplate and the slide sleeve of the impact rod and is vertical to the base, the inner end of the impact rod slide sleeve, which is close to the soleplate, is provided with an impact rod slide sleeve seat, the impact rod is provided with a spring retainer ring, a spring is arranged between the impact rod slide sleeve seat and the spring retainer ring and sleeved on the outer side of the impact rod, and the other end of the impact rod is provided with an impact head. The special hammer device is large in impact energy, long in maximal effective stroke of the cam, high in precision, high in impact frequency and light in weight.

Description

technical field [0001] The invention belongs to the technical field of nuclear engineering, and in particular relates to a special hammer device for nuclear power plants, which is used for acquiring impact signals in a monitoring system for loose parts of nuclear power plants. technical background [0002] There are many parts in the primary circuit coolant system of a nuclear power plant, and loose parts are sometimes found. The source is that the parts are loose or fall off during operation, or they may be left in the system during construction, refueling or maintenance. tools etc. In view of the complex structure of the system and the high temperature, high pressure and radiation environment, it is difficult to implement the monitoring and diagnosis of loose parts. The nuclear power plant loose parts monitoring system is one of the basic diagnostic tools for fault detection in power plants. Its purpose is to detect and locate metal blocks that may exist in the primary ci...

Claims

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Application Information

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IPC IPC(8): G01M7/08
Inventor 曾复万鹏飞方力先张卫谢永诚王赤虎张海丰邓晶晶
Owner HANGZHOU DIANZI UNIV
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