Machining method of heavy-load herringbone gear ring for split splicing machining and correction tool of heavy-load herringbone gear ring

Abstract

The invention discloses a machining method of a heavy-load herringbone gear ring for split splicing machining and a correction tool of the heavy-load herringbone gear ring inner helical teeth of two gear rings are correspondingly machined in a split manner, and the size precision of the inner teeth is improved through fine grinding tooth machining, so that high-precision symmetry of the inner teeth of the left-hand gear ring and the inner teeth of the right-hand gear ring is ensured, the central plane is centered, then the left-hand gear ring and the right-hand gear ring are spliced and calibrated on the correction tool, and the two gear rings sleeve the same correction part, so that it is guaranteed that the two gear rings are coaxial; two correction feeler levers are screwed in so that two top balls can abut against the two side walls of tooth grooves of the inner teeth of the two gear rings correspondingly, so that it is guaranteed that the phase angles of the two gear rings are consistent; and the two gear rings are clamped and fixed to the correction part through two pressing parts correspondingly, so that it is guaranteed that the two gear rings are completely attached to the two end faces of a positioning part. In this way, in the combining process, the tool is adopted for assisting in improving the centering degree control precision of the central planes of the inner teeth and the outer teeth, centering and alignment are facilitated, the efficiency is improved, error accumulation is reduced, and machining precision is improved.

Description

technical field [0001] The invention relates to the field of gear processing, in particular to a processing method of a heavy-duty herringbone ring gear processed in separate parts, and a calibration tool used in the processing method. Background technique [0002] The herringbone tooth is a kind of cylindrical gear. The herringbone tooth is composed of two sets of helical teeth with different rotation directions on the left and right. Gear meshing transmission, high bearing capacity, stable transmission, especially suitable for applications in heavy machinery, such as ships and other high-power transmission occasions. [0003] The plane where the left and right tooth extension lines of the herringbone teeth intersect is the center plane of the herringbone tooth. When there is a phase difference or a coaxiality error between the two sets of helical teeth of the herringbone tooth, the center plane will be different from the theoretically designed center plane. Displacement a...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the accumulative error in the machining process of a large heavy-duty ring gear with internal and external herringbone teeth leads to the instability of the final control deviation between the center plane of the inner tooth and the center plane of the outer tooth, the purpose of the present invention is to provide a split The processing method of the combined heavy-duty herringbone gear and its calibration tooling adopts the method of splitting the inner gear first, and then combining the outer gear. During the combining process, the tooling is used to assist in improving the center plane alignment control accuracy of the inner and outer gears. Facilitate alignment and alignment, improve efficiency, reduce error accumulation, and improve machining accuracy

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