Anti-impact sliding main shaft device

Abstract

The invention belongs to the technical field of mechanical assembly, and discloses an anti-impact sliding main shaft device. The total containment of a central spindle and a bearing bush lining for bearing bushes and shaft sleeves is realized, and the shape mutation of ceramic parts is avoided on design; meanwhile, all the shaft sleeves are arranged as ceramic materials, all the bearing bushes arearranged as polyether-ether-ketone or polyether-ether-ketone base composite materials, and the shaft sleeves and the bearing bushes form ceramic-polyether-ether-ketone friction pairs; and a feed liquid route is further optimized through the structural design, so that the processing and installation of the feed liquid route are more convenient, and the feed liquid route is prevented from being blocked and leaked. Finally, the processing difficulty of the sliding main shaft device can be reduced, the impact resistance and bearing capacity are improved, the abrasive resistance is increased, andthe service life is prolonged.

Description

technical field [0001] The invention belongs to the technical field of mechanical assembly, and in particular relates to a sliding main shaft device. Background technique [0002] As the core functional component of rotary machinery such as machine tools and high-speed compressor units, the spindle unit is a key part that determines the high-speed and high-precision rotary machinery. At present, domestic spindles generally have problems such as low speed, poor dynamic and static characteristics, and low accuracy retention, and traditional spindles are prone to high-temperature deformation of the spindle when running at high speed, thereby affecting the accuracy and operation stability of the spindle. At the same time, the friction pair material of the traditional spindle is all metal, which has poor performances such as wear resistance, corrosion resistance, and high temperature strength. In view of this, a high-performance ceramic spindle has emerged. The ceramic material ...

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly aims at the existing problems of the existing ceramic spindle device, such as fragile edges of ceramic parts, difficult processing of ceramic parts, poor impact resistance of the main shaft, etc., and provides an anti-shock sliding spindle device, which protects the edges of ceramic parts through reasonable structural design, and at the same time The material of the bearing pad is polyetheretherketone or polyetheretherketone-based composite material; thereby reducing the processing difficulty of the spindle device, improving impact resistance and bearing capacity, and increasing reliability and service life

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