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Traveling mechanism of reactor pressure vessel bolt hole video scanning device

A technology of pressure vessel and scanning device, which is applied in the fields of nuclear reactor monitoring, reactor, nuclear power generation, etc., can solve the problems of low transmission efficiency of worm gear and worm mechanism, complicated structure of scanning device, high processing accuracy requirements, etc., so as to achieve convenient and reliable transmission of power. , The effect of easy on-site maintenance and simple structure

Pending Publication Date: 2021-10-08
CGNPC INSPECTION TECH +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the scanning device is relatively complex, and the transmission efficiency of the worm gear mechanism is low. Additional processing of bevel gears with special angles is required, which requires high processing accuracy.

Method used

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  • Traveling mechanism of reactor pressure vessel bolt hole video scanning device

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Embodiment Construction

[0016] Below in conjunction with the embodiment shown in the accompanying drawings, the present invention is described in detail as follows:

[0017] like figure 1 As shown, the running mechanism of the reactor pressure vessel bolt hole video scanning device includes a casing 20 provided with bolt holes 19, a wheel front axle 7 and a wheel rear axle 17 that are rotatably connected to the casing 20, and are installed on the wheel front axle 7 And the wheel on the wheel rear axle 17, and the driving part for driving the wheel to rotate, the wheel front axle 7 and the wheel rear axle 17 are coplanar and the extension line of both axes passes through the arc-shaped circle of the end face of the pressure vessel. The front axle 7 of the wheel is coplanar with the rear axle 17 of the wheel, and the angle formed by the intersection of the extension lines of both axes is less than 90°, which is 13° in this embodiment.

[0018] The driving part includes a first coupling 3 installed on ...

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Abstract

The invention discloses a walking mechanism of a reactor pressure vessel bolt hole video scanning device, which comprises a shell, a front wheel axle and a rear wheel axle which are rotationally connected to the shell, wheels installed on the front wheel axle and the rear wheel axle, and a driving part used for driving the wheels to rotate. The driving part comprises a motor in transmission connection with the front wheel axle, a first output shaft rotationally connected to the shell, a first gear set connected between the front wheel axle and the first output shaft to realize transmission between the front wheel axle and the first output shaft, a first transmission shaft rotationally connected to the shell, a second gear set connected between the front wheel axle and the first transmission shaft to achieve transmission between the front wheel axle and the first transmission shaft, a second transmission shaft rotationally connected to the shell, a third gear set connected between the rear wheel axle and the second transmission shaft to achieve transmission between the rear wheel axle and the second transmission shaft, and a universal coupling connected between the first transmission shaft and the second transmission shaft. A duplex universal joint is adopted, so that power transmission is convenient and reliable. The mechanism is simple in structure, high in reliability and convenient to maintain on site.

Description

technical field [0001] The invention belongs to the field of nuclear power testing equipment, and in particular relates to a traveling mechanism of a video scanning device for bolt holes of reactor pressure vessels. Background technique [0002] The reactor pressure vessel is the core device of the nuclear fission reaction generator, the second protective barrier for nuclear safety, and the only non-replaceable main equipment in the nuclear island. The basic function is to establish and maintain the pressure of the primary circuit system, fix and contain the core, and build in the reactor, so that the chain reaction of nuclear fuel is limited in the primary circuit. The equipment needs to work in high temperature, high pressure, high radiation, and corrosive environments for a long time and cannot be replaced. Therefore, ensuring the stable and healthy operation of the equipment is the top priority in the nondestructive testing of nuclear power. [0003] The main bolt hol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C17/00G21C17/013
CPCG21C17/00G21C17/013Y02E30/30
Inventor 吴健荣马思敏张洋沈绍宾石磊严志刚王海军曾晨明
Owner CGNPC INSPECTION TECH
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