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Translation type shearing assembly for dismantling nuclear reactor detector assembly
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A detector assembly, nuclear reactor technology, applied in the direction of shearing device, shearing machine equipment, auxiliary device of shearing machine, etc., can solve the problem of not considering replacement and so on
Active Publication Date: 2020-10-23
NUCLEAR POWER INSTITUTE OF CHINA
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Summary
Abstract
Description
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Problems solved by technology
The design life of the two detector components is the whole life of the power plant, and replacement is not considered except in special circumstances
Method used
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Embodiment 1
[0044] Such as figure 1 , figure 2 As shown, a translational shearing assembly for removing a nuclear reactor detector assembly includes a rotating motor 4, a left main shaft 7 and a right main shaft 18;
[0045] The left side spindle 7 is provided with a left side cutter 9, and the right side spindle 18 is slidably provided with a right side cutter 16, and the left side cutter 9 and the right side cutter 16 are respectively placed on both sides of the detector assembly during shearing , the right side cutter 16 is connected to the power output shaft of the driving mechanism 21, the outer walls of the left main shaft 7 and the right main shaft 18 are respectively provided with a spur gear assembly I6 and a spur gear assembly II15, and the driving mechanism 21 is electric cylinder;
[0046]The output end of the rotating electrical machine 4 is provided with a multi-output reducer I3, and the horizontal end and the vertical end of the multi-output reducer I3 are respectively ...
Embodiment 2
[0050] Such as figure 1 , figure 2 As shown, this embodiment is based on Embodiment 1, and also includes a shearing motor 10, the output end of the shearing motor 10 is sequentially connected to a multi-output reducer II11, a reversing reducer II12, a flexible hinge 13 and a transmission shaft 14, The transmission shaft 14 is connected with the driving mechanism 21 .
[0051] In this embodiment, after the detector assembly is clamped between the left main shaft 7 and the right main shaft 18, the shearing motor 10 rotates through the multi-output reducer II11, the reversing reducer II12, the flexible hinge 13, and Behind the transmission shaft 14, the rotary motion is transmitted to the driving structure 21, thereby converting the rotary motion into linear motion.
Embodiment 3
[0053] Such as figure 1 , figure 2 As shown, this embodiment is based on Embodiment 1, and the left cutter 9 and the right cutter 16 are detachably installed inside the left spindle 7 and the right spindle 18, specifically:
[0054] The inside of the left main shaft 7 is provided with a first through groove, the first through groove is parallel to the axial direction of the left main shaft 7, one end of the left tool 9 is installed on the left handle 8, and the left side The tool handle 8 is set on the left main shaft 7 through the tool pressing piece 5;
[0055] The inside of the right main shaft 18 is provided with a second through groove, the second through groove is parallel to the axial direction of the right main shaft 18, one end of the right side cutter 16 is installed on the right side handle 17, and the right side The knife handle 17 is arranged in the second through groove, the right side knife handle 17 is vertically provided with a shear pin 19, and the right s...
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Abstract
The invention discloses a translation type shearing assembly for dismantling a nuclear reactordetectorassembly. The translation type shearing assembly comprises a rotating motor, a left main shaft and a right main shaft, wherein a left cutter is arranged on the left main shaft; a right cutter is arranged on the right main shaft in a sliding manner; during shearing, the left cutter and the rightcutter are correspondingly arranged on two sides of the detector assembly; the right cutter is connected with a power output shaft of a driving mechanism; a straight gear assembly I and a straight gear assembly II are correspondingly arranged on the outer walls of the left main shaft and the right main shaft; a multi-output speed reducer I is arranged at the output end of the rotating motor; a telescopic transmission shaft and a first vertical transmission shaft are correspondingly arranged at the horizontal end and the vertical end of the multi-output speed reducer I; the first vertical transmission shaft is connected with the straight gear assembly II; and the end part of the telescopic transmission shaft is connected with the straight gear assembly I through a second vertical transmission shaft. According to the translation type shearing assembly disclosed by the invention, dismantling and separation of a high-radioactivity section and a low-radioactivity section of the detector assembly are realized.
Description
technical field [0001] The invention relates to the technical field of refueling overhaul of a pressurized water reactornuclear powerplant, in particular to a translational shearing assembly for dismantling a nuclear reactor detector assembly. Background technique [0002] The detectors used in the core measurement system in the second-generation and second-generation pressurized water reactornuclear power plants are divided into thermocouples for temperature measurement and neutron flux detectors for flux measurement. The thermocouple is introduced from the top cover of the pressure vessel, guided by the thermocouple column assembly, and positioned at the specified measuring point position, and the lower end of the thermocouple is located at the core outlet of the upper core plate. The flux detector is introduced from the bottom head of the pressure vessel, guided through the instrument sleeve and finger sleeve when necessary, and enters the guide pipe inside the fuel as...
Claims
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Application Information
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