Shot blasting device for complex cavity in casting

Abstract

The invention relates to a shot blasting device for a complex cavity in a casting in the technical field of casting product surface shot blasting cleaning. The shot blasting device comprises a low-pressure feeding pipeline, a high-pressure power pipeline and a Y-shaped shot blasting joint, the Y-shaped shot blasting joint is provided with a shot blasting medium feeding port, a high-pressure air inlet and a shot blasting outlet, the low-pressure feeding pipeline is connected with the shot blasting medium feeding port, the high-pressure power pipeline is connected with the high-pressure air inlet, and the low-pressure feeding pipeline and the high-pressure power pipeline are conformal hoses. According to the shot blasting device, the shot blasting medium and the shot blasting power are separately conveyed to the position of the Y-shaped shot blasting joint to be collected and thrown out, so that the abrasion damage to the conveying pipeline in the conveying process of the high-energy shot blasting medium is avoided; and the special Y-shaped shot blasting joint and the conformalconveying hose are used for accurately jetting the parts of the complex inner cavity. Therefore, the shot blasting device is suitable for carrying out shot blasting on the complex narrow inner cavity of the casting and separately conveying the shot blasting medium and the high-pressure power, so that the abrasion damage to the conveying pipeline is avoided, the shot blasting efficiency is improved, and the maintenance cost is reduced.

Description

technical field [0001] The invention relates to a shot blasting cleaning technology for the surface of a casting product, in particular to a shot blasting device with a complex cavity structure inside the casting. Background technique [0002] Compared with forging, welding and other production methods, casting is a cost-effective forming method for industrial parts, and has an irreplaceable status and role in the forming and production of certain industrial parts. Large and high-efficiency steam turbines and gas turbines are generally used in important fields related to the national economy and people's livelihood, and their casings are large in size, large in tonnage, and complex in structure. Taking the medium-pressure inner cylinder of a steam turbine produced by Sharing Cast Steel Co., Ltd. as an example, its outline size is 2790mm×1940mm×1308 mm, and its weight reaches 11 t. There are multiple internal steam passages and semi-open steam passages inside the cylinder wal...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the disadvantages of easy wear of the simple shot blasting device in the inner cavity of the casting with complex inner cavity structure in the prior art, and provides a shot blasting device with complex inner cavity in the casting, so as to avoid the rapid abrasion of the feeding pipeline by the shot blasting medium. Improve shot blasting efficiency and reduce maintenance costs

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