Multi-runner high-speed rotating sealing device capable of conveying hard powder

Abstract

The invention relates to a multi-runner high-speed rotating sealing device capable of conveying hard powder. The multi-runner high-speed rotating sealing device capable of conveying hard powder comprises a stator and a rotor, the stator and the rotor are two hollow cylindrical bodies, multiple runners are arranged in the stator and the rotor, and each runner can convey flowing media such as the hard powder, gas and liquid; the upper half part of the rotor is nested in the stator, and the lower half part of the rotor is connected with a stepping motor through a synchronizing wheel and is driven by the stepping motor to rotate at a high speed; and an annular receiving groove is formed in the junction of the stator and the rotor, so that conveyed materials in the stator enter the annular receiving groove through the runners and enter the rotor rotating at a high speed, and annular sealing grooves are formed in the upper portion and the lower portion of the annular receiving groove. Hard powder, high-pressure gas and cooling water can be conveyed into a high-speed rotating channel from a fixed channel at the same time, the channels are sealed and does not leak, and a laser beam channel is reserved in the device. Hard powder is conveyed into a laser head rotating at a high speed by means of high-pressure gas, so that the laser head can machine the annular surface.

Description

technical field [0001] The invention relates to the technical field of laser processing, in particular to a multi-channel high-speed rotary sealing device capable of conveying hard powder. Background technique [0002] Laser additive manufacturing refers to the addition of materials that are melted by high-energy laser beams and then accumulated layer by layer. It can also repair and strengthen the surface of damaged parts. Due to its remarkable advantages, it has been developed rapidly in recent decades. The additives are mainly metal powders, and the addition methods are divided into prefabricated powder method and powder feeding method. As the domestic laser additive manufacturing technology and laser cladding technology gradually mature and the price of lasers gradually decreases, the application of laser processing technology in industrial production is becoming more and more extensive. Among them, coaxial powder feeding has high utilization rate and high efficiency Hi...

AI Technical Summary

Problems solved by technology

[0003] Because the existing laser processing technology needs to connect the pipelines for conveying powder, gas and liquid, it can only rely on the simple reciprocating linear motion of the platform and the mechanical arm on the plane to process the surface of the flat plate or simple parts, and the laser head cannot rotate. Complex surfaces with arcs cannot be machined

In actual industrial production, it is often necessary to strengthen or repair some curved surfaces, which severely limits the application of laser additive manufacturing, laser cladding and other technologies.

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