Last-stage guide vane assembly and machine tool pump

Abstract

The utility model discloses a last stage guide vane assembly and a machine tool pump and relates to the field of machine tool pumps, the last stage guide vane assembly is used for being installed on the machine tool pump, the machine tool pump comprises a shell and a liquid discharge pipe, the last stage guide vane assembly comprises a plurality of last stage guide vanes, a bearing disc and an installation disc used for being connected with the shell, and the installation disc and the bearing disc are oppositely arranged. The plurality of last-stage guide blades are circumferentially arranged between the mounting disc and the bearing disc at intervals by taking any center in the mounting disc or the bearing disc as an original point, so that a liquid flowing channel is formed between every two adjacent last-stage guide blades, a communicating area is arranged on the mounting disc, a flowing gap is formed between the bearing disc and the shell, and the liquid flowing channel is communicated with the communicating area. The circulating gaps, the liquid circulating channels, the communicating areas and the shell communicate with one another, the arrangement mode of the multiple last-stage guide blades in the prior art can be changed by designing arrangement of the multiple last-stage guide blades, gaps are prevented from being generated between every two adjacent last-stage guide blades, and liquid leakage is prevented from occurring in the conveying process of liquid.

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