Lateral injection device for strengthening water jet at space-limited part

Abstract

The invention relates to a lateral spraying device for strengthening water jet at a space limited part, which comprises a communicating valve, an inlet pipe, a nozzle and a focusing pipe which are communicated are sequentially arranged in the communicating valve along the axial direction, the inlet pipe is connected to the upper end of the communicating valve and presses the nozzle in the communicating valve, and the focusing pipe is connected to the lower end of the communicating valve; a mixing cavity is formed between the focusing pipe and the nozzle, two right-angle communicating pipes communicated with the mixing cavity are respectively fixed along the radial direction of the communicating valve, the two right-angle communicating pipes are respectively connected with a feeding pipe, and an outlet of the focusing pipe extends out of the communicating valve and is connected with a lateral spray head; a conical hole and a deflection device are arranged in the lateral spray head in the axial direction, a lateral outlet hole is formed in the lateral spray head perpendicular to the axial direction, and an inlet of the lateral outlet hole is clamped between an outlet of the conical hole and the deflection device. According to the lateral spraying device, after acceleration is conducted through the focusing pipe and the conical hole of the lateral spraying head, the particle jet flow is turned through the deflection device and sprayed out of the lateral outlet hole, and water jet strengthening on the surface of the space limited part is achieved.

Description

technical field [0001] The present invention relates to the technical field of surface strengthening, and more particularly to a lateral spray device for water jet strengthening of space-limited parts. Background technique [0002] Metal surface strengthening is an effective anti-fatigue surface modification technology. Its basic principle is to extrude or impact the surface of the material to produce a certain plastic deformation and grain refinement layer on the surface of the material, improve the hardness of the surface of the material, and reduce the hardness of the material. Surface roughness, and introduce beneficial residual compressive stress to the inner wall of the material to achieve the purpose of improving the fatigue life of the material. [0003] Water jet enhancement technology is one of the more promising surface modification technologies at present. It sprays high-pressure pure water jets carrying huge energy or mixed water jets mixed with projectiles onto...

AI Technical Summary

Problems solved by technology

[0004] However, the existing water jet strengthening is based on the processing of straight nozzles. When water jet strengthening processing is performed on the surface of space-limited parts such as the inner wall of the tongue and groove of aviation parts and the central hole wall of the turbine disk, it cannot guarantee that the straight nozzle and the The processing surface is vertical, but there is an inclined angle, and the jet flow at the inclined angle will cause the cutting of the surface of the workpiece and affect the surface quality; therefore, the existing technology cannot realize the water jet strengthening of the space-limited parts

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