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An underwater operating device for removing and installing core web bolts

An underwater operation, bolt disassembly and assembly technology, applied in metal processing, metal processing equipment, hand-held tools, etc., can solve the problems of wear and failure of anti-loosening devices, loosening of bolts on webs, etc., achieving low cost, convenient disassembly and assembly, Universal effect

Active Publication Date: 2018-07-27
CNNC NUCLEAR POWER OPERATION MANAGEMENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the web bolts themselves have an anti-loosening design, after a long running time, the anti-loosening device may wear out and the web bolts may become loose.

Method used

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  • An underwater operating device for removing and installing core web bolts
  • An underwater operating device for removing and installing core web bolts
  • An underwater operating device for removing and installing core web bolts

Examples

Experimental program
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Embodiment Construction

[0014] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] Such as figure 1 , figure 2 , image 3 As shown in the present invention, the underwater operating device for disassembling and assembling core web plate bolts includes a positioning mechanism, a transmission mechanism and a driving mechanism 7;

[0016] The positioning mechanism includes a hanger 1, a boom 2, and a working platform 3; the hanger 2 is connected between the hanger 1 and the working platform 3, and is used to adjust the height of the working platform 3 and support its weight. The hanger 1 is used to support the weight of the whole device, and can be connected to a suspension hook, a personnel work platform or other fixtures. The working platform 3 is the installation base of the transmission mechanism and the driving mechanism 7 , which plays the role of bearing and positioning. The transmission mechanism and the dri...

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Abstract

The invention relates to an underwater operation device used for disassembling a reactor core former bolt and is suitable for the underwater disassembling operation of the reactor core former bolt in a high-radioactivity environment formed after radiation. The underwater operation device comprises a locating mechanism, a transmission mechanism and a driving mechanism, wherein the locating mechanism comprises a suspending frame, lifting rods and a working platform, and the lifting rods are connected between the suspending frame and the working platform; the transmission mechanism and the driving mechanism are mounted on the working platform, and the front end surface of the working platform is close to the outer surface curvature of an operated object; the transmission mechanism comprises a sleeve head, a transmission box and a driving shaft, the transmission box is connected with the driving shaft, one end of the sleeve head is connected with the output end of the transmission box, the other end of the sleeve head is a sleeve, and the transmission box changes the direction and speed of a torque transmitted by the driving shaft and transmits the torque to the sleeve head; and the driving mechanism is connected with the driving shaft. The sleeve head of the device can be closely matched with the head of the former bolt and also has a reasonable space. The sleeve head not only is strong enough to support the weight of the bolt but also helps monitoring and controlling the head sleeving-in depth of the former bolt during operation.

Description

technical field [0001] The invention relates to an underwater operation device for disassembling and assembling core web bolts, which is suitable for underwater disassembling and assembling operation of core web bolts in high radioactivity environment after irradiation. Background technique [0002] During the operation and overhaul of nuclear power plants, many factors may cause the vibration of the core web bolts, such as the fluid impact of the main coolant, the drastic change of the core temperature, the hoisting of fuel assemblies and reactor internals, etc. Although the web bolts themselves have an anti-loosening design, after a long running time, the anti-loosening device may wear out and the web bolts may become loose. At this time, due to the high radioactive environment after irradiation, it is necessary to perform underwater disassembly and assembly operations on the web bolts. In addition, if the web plate of the crane plant assembly needs to be disassembled in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P19/06B25B27/14
CPCB23P19/06B25B27/14
Inventor 戚宏昶王聪李涛陈梁何少华耿勇聂文哲张仕东周攀
Owner CNNC NUCLEAR POWER OPERATION MANAGEMENT
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