Core positioning device of planetary gear

Abstract

The embodiment of the invention discloses a core positioning device of a planetary gear. The core positioning device comprises a guiding rod, a first sliding block, a second sliding block, first supporting arms, second supporting arms, third supporting arms, a first screw nut and a second screw nut, wherein the first sliding block and the second sliding block sleeve the guiding rod, and are in sliding fit with the guiding rod; the ends of the first supporting arms are hinged to the first sliding block, and the other ends of the first supporting arms are hinged to first supporting blocks; the ends of the second supporting arms are hinged to the second sliding block, and the other ends of the second supporting arms are hinged to second supporting blocks used for gluing with an inner hole of the planetary gear or an inner ring of a bearing assembled in the inner hole of the planetary gear; the ends of the third supporting arms are hinged to the second supporting arms, and the other ends of the third supporting arms are directly hinged to the guiding rod, or are hinged to a hinge piece arranged on the guiding rod; the first screw nut is in threaded fit with the guiding rod, and is used for fixing the axial position of the first sliding block; the second screw nut is used for fixing the axial position of the second sliding block. The core positioning device adopts rotation of the supporting arms for lifting to transfer the axial movement displacement into the radial movement of the supporting blocks to realize positioning of the center of the inner hole of planetary gears in different standards, so that the universality and the low cost of the core positioning device can be ensured.

Description

technical field [0001] The invention relates to the field of centering devices, in particular to a planetary gear centering device. Background technique [0002] In the research and development process of the gearbox, in order to further reduce the structural size, reduce the product weight, and improve the torque transmission capacity, the designers have carried out continuous and in-depth research on technologies such as power sharing, splitting and converging, and have developed a variety of gear boxes. Representative products, such as parallel power split and merge transmission structure, vertical planetary structure, horizontal planetary structure and so on. Among the planetary transmission structures, the NGW planetary transmission structure is the most widely used, especially in the application of building material vertical mill gearbox series, nuclear power seawater circulating pump series, wind power gearbox series and so on. [0003] In the assembly production pro...

AI Technical Summary

Problems solved by technology

If the traditional tooling dummy shaft method is used for planetary gear assembly and centering, it will inevitably result in: According to the characteristics of different sizes of planetary gear inner holes of different types of products, many different sizes of tooling and centering dummy shafts are required during assembly, and the consumables are many. High cost and poor versatility of tooling

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