Large-size wind turbine gear shaft tooth grinding tooling

Abstract

The invention relates to a large-size wind turbine gear shaft tooth grinding tooling, which comprises a shaft sleeve which is used for tightly sheathing a gear shaft to be machined and is provided with an open end. A bolt hole I and a bolt hole II are formed at the open end of the shaft sleeve. Bolts are screwed into the bolt hole I and the bolt hole II and are tightened to enable the shaft sleeve to clamp the gear shaft to be machined. The other end of the shaft sleeve is fixedly arranged on the support of a main shaft worktable by using a fixing bolt. The large-size wind turbine gear shaft tooth grinding tooling has the advantages that the positioning stability is high, not only can the problem that teeth of special-structure wind turbine gear shafts without an inner hole are difficult to grind be solved and can disqualification factors such as uneven tooth thickness and gear eccentricity existing during gear shaft tooth grinding be better avoided, but also the requirements on accuracy and surface roughness during gear shaft tooth grinding can be satisfied, the tooling is more convenient to assemble and disassemble, the tooling can be manually adjusted, the tooling is particularly suitable for mass production and the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of tooth grinding of wind power gear shafts, in particular to a tooling fixture for grinding large wind power gear shafts. Background technique [0002] The most critical process in the gear shaft processing method is the gear grinding process. The gear grinding is based on the reference plane and centered by the inner hole. Although the inner hole is relatively precise, a certain tolerance is allowed, such as centering with an ordinary mandrel , it is inevitable that the positioning deviation caused by the gap generated by the tolerance of the inner hole will inevitably occur. The gear shaft processed in this way has unqualified factors such as uneven tooth thickness and gear eccentricity, which not only directly affect the contact area of ​​the gear, but also transmit it during the meshing process. The torque is not uniform, generating vibration noise, so that premature wear and failure. In the gear grinding proces...

AI Technical Summary

Problems solved by technology

However, the tooling of this structure is only suitable for parts with inner holes, and cannot guarantee the accuracy of some special structures, especially the parts of wind power gear shafts after grinding.

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