High-speed revolution split-type shaft system of large-size three-dimensional space integral measurement position indicator

Abstract

The invention relates to a high-speed revolution split-type shaft system of a large-size three-dimensional space integral measurement position indicator, wherein the high-speed revolution split-type shaft system belongs to the field of measurement technology. The high-speed revolution split-type shaft system is used for connecting structure members such as a base station encoder and a revolving tabletop and transfers moment, thereby improving shaft system cross section modulus, keeping integral rigidity, and realizing stable and reliable high-speed rotation of the revolving tabletop in a structure level. The main components of the high-speed revolution split-type shaft system comprise an upper bearing internal gland, an upper bearing external gland, a shaft sleeve, a body shaft, a lower bearing internal gland, a lower bearing external gland, and a connecting cover. Through structure matching of internal split-type pipes, the high-speed revolution split-type shaft system has advantagesof improving material utilization rate, reducing total weight, effectively improving shaft system cross section modulus and rigidity, improving integral assembly adjustability of the shaft system andsupplying reliable insurance for high-speed stable rotation of a base station.

Description

technical field [0001] The invention relates to a large-scale three-dimensional space overall measurement locator high-speed rotary split shaft system, which belongs to the field of measurement technology. Under the premise of guaranteeing the realization of basic functions such as structural connection and torque transmission, the shafting system can improve the section modulus of the shafting system and maintain the overall rigidity by optimizing the structural design of the shafting system. The system is stable and reliable for high-speed rotation. technical background [0002] The large-scale three-dimensional space overall measurement locator is mainly used in aerospace fields such as aircraft manufacturing and satellite manufacturing, automobiles, shipbuilding, and industrial measurement. Its main functions are reflected in real-time monitoring, mobile navigation, online detection, and the spatial size of large components. 3D measurement and reverse engineering, etc. ...

AI Technical Summary

Problems solved by technology

[0004] The traditional shafting structure using one-piece shafting mostly uses solid shafts. In order to comprehensively weigh the overall weight, installation method and rigidity, it is often necessary to select the shaft within the diameter range of 8 to 12mm. According to the working principle , in actual use, the speed of different base stations may fluctuate in the range of 1200-3000rpm, and the thinner rotating shaft has lower stiffness in the case of high-speed rotation. Since the shafting needs to be connected to other structural parts inside the base station, the overall shaft is required The form is multi-step. If the form of an integrated hollow shaft is used, there will be problems such as difficult processing, long processing cycle, and high processing cost. Moreover, since the integrated shaft usually adopts thermal expansion assembly to complete the overall assembly of the shaft system, As a result, the assembly is more difficult, and the assembly process requires high professional skills of the operators, which is limited by the thermal expansion assembly method. During the assembly process, there are still problems such as modification, fine-tuning difficulties, and uncontrollable bearing preload.

In order to solve the above-mentioned problems such as small modulus and poor rigidity of the traditional one-piece solid rotary shafting system, difficult processing and long cycle time of the traditional one-piece hollow rotary shafting system, as well as the common fine-tuning difficulties of the one-piece shafting system, research and design This high-speed rotary split shaft system

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