Assembling adjusting method for surrounding type precision shaft system

Abstract

The invention provides an assembling adjusting method for a surrounding type precision shaft system. The method comprises the steps that 1, a center shaft, a left shaft end, a right shaft end, a bearing pedestal, two angular contact ball bearings, a bearing inner pressing ring and a bearing outer pressing ring are installed together; 2, a complementary auxiliary tool shaft system is added at the left end of a main shaft system and coaxial with the main shaft system; 3, the center shaft and a connecting piece between the center shaft and the bearing pedestal are disassembled; 4, an encoder and a torque machine are installed by using the auxiliary tool shaft system as the reference; 5, the center shaft and the connecting piece between the center shaft and the bearing pedestal are installed by using the auxiliary tool shaft system as the reference; 6, the auxiliary tool shaft system is disassembled; and 7, loads are assembled and adjusted at the two ends of a main shaft by using the main shaft system as the reference. According to the assembling adjusting method, an auxiliary shaft system reference switching method is adopted, the purpose of precision adjustment of the encoder, the torque machine and the like of the surrounding type precision shaft system is achieved, and the assembling and adjusting precision of the encoder is effectively ensured.

Description

Technical field [0001] The invention belongs to the field of precision mechanical assembly and adjustment, and relates to a shaft assembly and adjustment method. Background technique [0002] In the design scheme of precision shafting, the following two forms are generally adopted: [0003] Option 1: Simply supported beam form. Such as figure 1 As shown, the A end is the positioning end, which generally adopts a pair of centering bearings (such as angular contact ball bearing set, which adopts DB type or DF type installation); the right end is the supporting end, which is generally a floating bearing (such as deep groove ball Bearing). The encoder is installed at the positioning end, and the torque machine is installed at the supporting end. Under normal circumstances, the load is distributed in the middle with the "H" type. [0004] Option 2: For small shaft systems or shaft systems with little change in ambient temperature, in order to save space and improve accuracy, you can d...

AI Technical Summary

Problems solved by technology

However, due to the characteristics of the angular contact ball bearing group, no matter whether scheme 1 or scheme 2 is adopted, the span of the shafting system cannot be too small in space, and the load has certain restrictions.

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