Large-scale shaft part shaft neck turning equipment and turning process

Abstract

The invention provides an equipment and turning process for journal turning of large shaft parts, including a turning assembly, a power mechanism, and a turning mechanism clamped on the large shaft parts. The turning mechanism includes two clamping parts arranged at intervals in the axial direction , the turning assembly can be disassembled and assembled between two clamping parts. There are center holes on both clamping parts. The two center holes are set coaxially and are used to pass through large shaft parts. Both are equipped with a positioning assembly connected to the orientation of large shaft parts. Each clamping part is connected to the power mechanism through a transmission assembly. Driven by the power mechanism, the two clamping parts rotate around the large shaft parts synchronously to realize driving turning. Components are used for turning repair of the journal of large shaft parts. The present invention can control the amount of cutting and the cutting amount of the back, and adopt different processing parameters such as cutting speed according to the rough and finishing processing, so as to avoid equipment vibration and achieve high dimensional accuracy and shape and position tolerance.

Description

technical field [0001] The invention relates to a technology for repairing damage to shaft parts, in particular to equipment and a turning process for turning journals of large shaft parts. Background technique [0002] With the development of industry, the size of large shaft parts (such as steam turbine and generator rotors, marine crankshafts, etc.) is getting larger and better, and the materials are getting better and better, so the requirements for the journal part as its support are also increasing. High, specifically in the following aspects: high-precision shape tolerances (straightness, roundness, cylindricity, concentricity or outer circle runout, full runout), high-precision dimensional tolerances, high-demand surface roughness ( Generally Ra0.2~Ra0.8). [0003] As the support of the slewing system, the journal is prone to wear, roughening, marks, etc., causing system instability and seriously affecting operation safety. Such large shaft parts are key components...

AI Technical Summary

Problems solved by technology

However, for large shaft parts, most of the current repair methods are manual repair, or simple grinding wheel mechanism for repair, which is difficult to meet the precision and surface roughness requirements, and there are still potential safety hazards even after the repair is completed.

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