Assembly method and assembly tool for intermediate potential shield

Abstract

The present invention discloses an assembly method and an assembly tool for an intermediate potential shield. The assembly method for the intermediate potential shield comprises the steps of 1, vertically arranging a pre-assembled module formed through the butt joint of a shielding cylinder and an insulating cylinder between the upper positioning seat and the lower positioning seat of the assembly tool; 2, detecting and adjusting the relative positions of two positioning parts mutually corresponding to the upper and lower positioning seats till the upper and lower positioning seats are aligned with each other in the same vertical direction of the two positioning parts; 3, maintaining the aligned positions of the upper and lower positioning seats, and pouring an adhesive in the insertion parts of the shielding cylinder and the insulating cylinder of the pre-assembled module. During the above process, the upper and lower positioning seats are always coaxially and detachably connected with the two ends of the pre-assembled module. When the two ends of the pre-assembled module are completely aligned, the entire pre-assembled module is maintained in the vertical direction due to the fact that the two ends of the pre-assembled module are the opposite ends of the shielding cylinder and the insulating cylinder. Therefore, the assembly method is low in implementation difficulty, and convenient in operation.

Description

technical field [0001] The invention relates to an intermediate potential shielding assembly method and assembly tooling. Background technique [0002] Epoxy resin adhesive is a kind of engineering adhesive prepared by epoxy resin base material, curing agent, accelerator and filler. It has the characteristics of good bonding performance and simple bonding process, so it is widely used in industrial fields . There is usually an intermediate potential between the high potential and the ground potential of a 500KV current transformer, and the shielding structure on the intermediate potential is usually adopted such as figure 1 As shown in the intermediate potential shield, the core components of the intermediate potential shield are the coaxial butt joint insulating cylinder 8 and the shielding cylinder 7, and the shielding cylinder 7 and the insulating cylinder 8 are fixed by bonding. However, due to the fact that there are few domestic manufacturers of 500KV current transfo...

AI Technical Summary

Problems solved by technology

However, in this assembly method, the positioning stage of the insulating cylinder and the shielding cylinder before glue filling and the curing stage after glue filling all rely on the gap between the outer peripheral surface of the shielding cylinder and the wall surface of the socket hole of the insulating cylinder. The guide coordinates to achieve positioning, and lacks the auxiliary positioning of external tooling, so the outer peripheral surface of the plug-in end of the shielding cylinder and the wall surface of the plug-in hole of the insulating cylinder need higher processing accuracy and assembly accuracy, which will not only increase the intermediate potential shielding The processing difficulty and processing cost will also prolong the cycle of intermediate potential shielding assembly and reduce work efficiency

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