Auxiliary device for facilitating disassembly and assembly of drift tube and method of use thereof

Abstract

The invention discloses an auxiliary device for facilitating disassembly and assembly of a drift tube and a method for using the same. In the auxiliary device, the bottom of the supporting plate assembly is connected to a flange through a connecting screw, and the lower end of the connecting screw passes through the flange and is threadedly connected to an adjusting nut. A pressure plate is also provided at the joint between the adjusting nut and the flange; the upper part of the supporting plate assembly is connected with the bottom of the drift tube, and the outer periphery of the flange is installed on the cavity wall of the linear accelerator. The method of use is that the adjusting nut is pre-embedded in the pressure plate; the upper end of the connecting screw is connected with the supporting plate assembly, and the lower end passes through the flange and then connected with the adjusting nut; the adjusting nut is rotated to connect with the flange, and the bolt is passed through the pressure plate and screwed. Insert the flange, but do not tighten the bolts; fix the flange on the cavity wall of the linear accelerator. The invention replaces the traditional manual support action, improves the stability when the drift tube is installed or disassembled, avoids interference or damage to the adjacent drift tube or the inner wall of the cavity, and can also effectively reduce the labor intensity.

Description

technical field [0001] The invention relates to the technical field of linear accelerators, in particular to an auxiliary device for facilitating the assembly and disassembly of a drift tube and a use method thereof. Background technique [0002] In the China Spallation Neutron Source, a large number of drift tubes are generally installed in the drift tube linear accelerator (DTL), up to 153 drift tubes. The surface accuracy and installation accuracy of the drift tube have extremely high requirements (the surface roughness generally requires Ra 0.8um), and the installation requires errors in three orthogonal directions (that is, the three directions of X-axis, Y-axis, and Z-axis). Keep within ±0.05mm, the minimum distance between two drift tubes is about 19mm, the mass of each drift tube gradually increases from the low-energy end to the high-energy end, drift tube No. 1 weighs about 7.5kg, and drift tube No. 153 weighs the most Heavy, about 28kg. [0003] During the actua...

AI Technical Summary

Problems solved by technology

This operation method is simple and direct, but in the process of operation, the drift tube is supported by manual hand support, which is prone to the phenomenon that the drift tube collides with the adjacent drift tube or the inner wall of the linear accelerator cavity, which affects the surface accuracy and accuracy of each drift tube. Installation accuracy

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