Shot blasting machine with V-shaped blades

Abstract

The invention discloses a shot blasting machine with V-shaped blades. An impeller assembly matched with the shot blasting machine comprises end discs and the V-shaped blades. The inner side surfaces of the two end discs are opposite to each other, the two end discs are assembled via a hub to form an impeller, a plurality of V-shaped grooves are formed in the corresponding inner side surfaces of the two end discs in an alignment manner, and the heads of the V-shaped grooves are radially arranged; two ends, which are positioned in the axial directions of the end discs, of each V-shaped blade are positioned and are fixed into the corresponding V-shaped grooves formed in the two end discs, and shot blasting working faces are arranged on two outer side surfaces, which are positioned in the peripheral direction of the impeller assembly, of each V-shaped blade. The bottoms of the V-shaped grooves can selectively extend all the way to the outer edges where the end discs are positioned, so that the V-shaped blades can be arranged in the V-shaped grooves along the radial directions of the end discs; fixing components for fixing the V-shaped blades are arranged on the end discs. The shot blasting machine with the V-shaped blades has the advantage of long service life.

Description

technical field [0001] The invention relates to a shot blaster. Background technique [0002] Shot blasting (shot blast) is a mechanical surface treatment process, and similar processes include sandblasting and shot peening. Shot blasting is a cold treatment process, which is divided into shot blasting cleaning process and shot blasting strengthening process. [0003] The main structure of the shot blasting machine is the impeller body, which is generally equipped with a plurality of blades, and the impeller body is mounted on the main shaft driven by, for example, an electric motor together with the shot wheel located at the center of the shot blasting wheel. The shot pipe is connected with the shot wheel to provide projectiles, which are then distributed by the shot wheel. With the rotation of the impeller body, the projectiles can obtain the required speed. [0004] Regarding the shot blasting machine, its performance is closely related to the shape of the blade, and th...

AI Technical Summary

Problems solved by technology

Typically, such as the Chinese patent document CN202640171U, which discloses an impeller blade used in a shot blasting machine, the blade used is an arc-shaped blade, and the stiffness of the blade itself is not only dependent on the material but also related to its own thickness. However, due to the influence of its installation space, it is not easy to make the blade too thick, and its service life mainly depends on the use of special materials, such as high manganese alloy, resulting in high cost

Its working mode is single, using the outer arc surface of its arc-shaped blade as the working surface, based on the structural view provided by it, it can be determined that its rotation can only be counterclockwise

[0005] And as the used blade of Chinese patent document CN103600300A is arc-shaped blade equally, but the installation mode of its blade is opposite to the installation mode of Chinese patent document CN202640171U, also can only realize clockwise rotation

The installation method of this type of blade is generally that the side of the blade is installed on the end plate of the impeller, such as the Chinese patent document CN202640171U, which relies on one-sided fixing of the dovetail groove. Under this fixing condition, the supporting forces on both sides of the blade are different. prone to leaf deformation

[0006] Chinese patent document CN204639939U discloses a fixing structure of the impeller body of the blasting machine. The fixing method is to fix the blades based on two discs, wherein the discs are located at the root of the blade, which is similar to the fixing of the root of the blade, and the blade remains There is a relatively long overhang, which is easy to vibrate during the rotation of the impeller, which affects its service life and shot blasting quality

[0007] However, Chinese patent document CN203495774U adopts an integrated shot blasting wheel. Although the integrated structure has high structural strength, the maintainability is relatively poor. Once the blade is damaged, it cannot be replaced, resulting in the scrapping of the entire impeller.

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