An anti-shock sliding spindle device

Abstract

The invention belongs to the technical field of mechanical assembly, and discloses an impact-resistant sliding spindle device, which realizes the full containment of the shaft core and the bushing bushing on the bushing and the bushing, and avoids sudden changes in the shape of ceramic parts in design; at the same time, all bushings are set It is made of ceramic material, and all bearing bushes are set to polyetheretherketone or polyetheretherketone-based composite materials, which form ceramic-polyetheretherketone friction pair; the liquid supply path is further optimized through structural design, so that the liquid supply path The processing and installation are more convenient, and the blockage and leakage of the liquid supply path are prevented. Ultimately, the present invention can reduce the processing difficulty of the sliding spindle device, improve its impact resistance and bearing capacity, and increase its wear resistance and service life.

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 ...

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