Driving mechanism spatial layout structure and built-in control rod driving mechanism

Abstract

The invention relates to the technical field of nuclear reactor control rod water pressure driving equipment, in particular to a driving mechanism space layout structure and a built-in control rod driving mechanism. The structure comprises an inner sleeve which is axially provided with a channel for a control rod driving shaft to move axially, and the inner sleeve is used for being sleeved with shaft holes of a lifting hydraulic cylinder, a transmission hydraulic cylinder, a transmission pin claw mechanism, a clamping hydraulic cylinder and a clamping pin claw mechanism from top to bottom, thetransmission sleeve is assembled between the inner sleeve and the transmission hydraulic cylinder, one end of the transmission sleeve is connected with the lifting hydraulic cylinder, the other end of the transmission sleeve is assembled between the inner sleeve and the transmission pin claw mechanism and is in linkage connection with the transmission pin claw mechanism, and the clamping sleeve is assembled between the inner sleeve and the clamping pin claw mechanism and is in linkage connection with the clamping pin claw mechanism. According to the structure, on the basis that reliable movement of the control rod driving shaft is guaranteed, the control rod driving shaft in the moving state can be stressed evenly and abraded evenly, and the layout requirements of water diversion pipe routing and supporting are met.

Description

technical field [0001] The invention relates to the technical field of nuclear reactor control rod hydraulic driving equipment, in particular to a spatial layout structure of a driving mechanism and a built-in control rod driving mechanism. Background technique [0002] Nuclear reactor control rod driving mechanism, referred to as the driving mechanism, is the most critical safety equipment of the reactor, and is responsible for important functions such as starting, power regulation and shutdown of the reactor. According to the installation position of the control rods, the control rod drive mechanism can be divided into an external control rod drive mechanism and an internal control rod drive mechanism. Among them, the nuclear reactor control rod hydraulic driving system is a built-in control rod driving mechanism. The driving mechanism is placed in the high temperature, high pressure and irradiation environment in the reactor pressure vessel. Sequentially drive transmissi...

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Problems solved by technology

[0005] For this reason, the present invention proposes a spatial layout structure of the driving mechanism to solve the problems of uneven force and uneven wear on the control rod driving shaft during the movement of the control rod driving shaft inside the driving mechanism

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