Machining process of large shielded motor thrust disc

Abstract

The invention relates to a machining process of a large shielded motor thrust disc. The machining process comprises the following steps that a, rough turning is carried out on a thrust disc welding piece on a lathe; b, finish turning is carried out on the thrust disc subjected to rough machining; c, the thrust disc is clamped to a grinding machine workbench, and an inner hole of the thrust disc is ground; d, the thrust disc is heated and arranged on a tool plug; e, the thrust disc arranged on the tool plug is placed on a thrust disc grinding tire to be ground; f, the working surface and the non-working surface of the thrust disc are checked by using a coordinate measuring machine; and g, the thrust disc is detached from the tool plug, and put in storage for subsequent use after being cleaned. According to the machining process of the large shielded motor thrust disc, the motor machining and assembling quality is improved, the stability of the thrust disc in the running state of a motor is guaranteed, and meanwhile, the machining precision of the thrust disc can be guaranteed by using in-place ground equal-height supporting nails to support the thrust disc, so that the percent of pass of products is increased; and an inspection method of the thrust disc is standardized, so that the operability is improved.

Description

Technical field: [0001] The invention relates to the processing technology of the thrust disk of a large-scale shielded motor. Background technique: [0002] Due to low efficiency, shielded motors were only used in small equipment in the past, but as the country vigorously promotes nuclear power projects and the development of nuclear power main pump motors, shielded motors have higher safety and longer service life. High-power shielded motors have been developed and produced successively. As the power of shielded motors increases, the thrust discs of shielded motors also become larger. The processing requirements are also getting higher and higher. [0003] In the past, the structure size of the thrust disc of the small shielded motor was very small, and it was easy to meet its size requirements during processing. However, the thrust plate of a large shielded motor is also a kind of thin-walled part due to its structural change, and it is easy to deform during the process...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a processing technology for a large-scale shielded motor thrust disc, which solves the problem that the large-scale thrust disc is easily deformed during the processing and when it is installed on the motor rotor, improves the processing and assembly quality of the thrust disc, and uses Contour support nails support the thrust plate and also ensure the machining accuracy of the thrust plate

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