Grinding device capable of improving smoothness of impeller channel

Abstract

The invention discloses a grinding device capable of improving the smoothness of an impeller channel. The grinding device comprises a sand box, emery, an impeller, a sleeve shaft, a bearing box and avariable-frequency speed regulation motor. The sand box is of a hollow structure, and a main shaft of a cylindrical structure penetrates through one end of the variable-frequency speed regulation motor. The grinding device has the beneficial effects that the emery is continuously thrown out by impeller blades through the impeller channel, and the direction of the throwing-out direction is consistent with the direction of a molded line of the impeller channel. The emery is fine in particle and high in hardness, so that the impeller channel is ground smoothly through scoring of the impeller channel. By means of the grinding device, casting burrs and the sand inclusion in the impeller channel can be easily and quickly removed, and the smoothness in the impeller channel can be greatly improved. The inner wall of the impeller channel is scoured by a large quantity of emery fine particles, so that the efficiency of grinding the impeller channel and removing the burrs is higher, meanwhile, the position and angle coverage of the device on the impeller channel grinding work is more comprehensive, and the burrs are removed more thoroughly.

Description

technical field [0001] The invention relates to a grinding device, in particular to a grinding device capable of improving the smoothness of an impeller flow channel, and belongs to the application technical field of the grinding device for the impeller flow channel. Background technique [0002] When the pump is running, the smoothness of the impeller channel has a certain influence on the efficiency of the pump. Since the impeller channel of the centrifugal pump is a curved streamline, which is sandwiched between the front and rear cover plates, the casting burrs and sand inclusions in the impeller channel must be manually ground. The new is not easy to remove. The main function of the grinding device is to automatically remove the casting burrs and sand inclusions in the impeller flow channel. [0003] There are still many deficiencies in the existing grinding device for the impeller channel in use. Most of the existing grinding devices for the impeller channel contact th...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that most of the existing grinding devices for the impeller flow channel scrape and remove the casting burrs and sand inclusions in the form of contact with the impeller flow channel when the impeller rotates. And the removal efficiency of sand inclusions is slow; and the position and angle of impeller runner grinding work are not fully covered by the impeller, resulting in the grinding device not completely and thoroughly removing casting burrs and sand inclusions from the impeller slideway; When cleaning the casting burr and sand inclusion by scraping the channel, the impeller is easy to shake, which leads to poor safety and reliability of the grinding device, and the impeller and the impeller slideway are easily damaged. A repairing method that can improve the smoothness of the impeller flow channel is proposed. grinding device

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