Combined type axial rotating pulsating heat pipe grinding wheel and preparation method thereof

Abstract

The invention discloses a combined type axial rotating pulsating heat pipe grinding wheel. The combined type axial rotating pulsating heat pipe grinding wheel is composed of a handle body and a plurality of grinding wheel section blocks capable of being fixed to the handle body in a combination mode; working layers with abrasive particles are arranged on the outer surfaces of the lower ends of thegrinding wheel section blocks, heat exchange fins are arranged on the upper parts of the grinding wheel section blocks, and closed single loop pulsating heat pipe flow channels are arranged in the grinding wheel section blocks; vacuumizing liquid injecting holes are formed in the single loop pulsating heat pipe flow channels, plug heads are sealed on the vacuumizing liquid injecting holes and canbe moved away from the vacuumizing liquid injecting holes, and thus the single loop pulsating heat pipe flow channels are connected with a vacuumizing device or a liquid injecting device through thevacuumizing liquid injecting holes; and the vacuumizing device can vacuumize the single loop pulsating heat pipe flow channels, and the liquid injecting device can inject preset working mediums into the single loop pulsating heat pipe flow channels. The combined type axial rotating pulsating heat pipe grinding wheel has the advantages of efficiently strengthening and channeling the grinding heat generated by grinding arc areas, reducing the grinding temperature and improving the grinding quality.

Description

technical field [0001] The invention belongs to the technical field of grinding wheel production, and in particular relates to a combined axially rotating pulsating heat pipe grinding wheel and a preparation method thereof. Background technique [0002] Grinding, especially high-efficiency grinding, generates a lot of heat because only a small amount of coolant enters the grinding area, so a small part of the grinding heat is carried away by the coolant and grinding chips, while most of the heat remains Accumulated in the grinding arc area, causing the temperature of the grinding arc area to rise, resulting in burns, oxidation, thermal damage such as residual stress and micro-cracks on the surface of the workpiece, as well as the blockage of the grinding wheel and the passivation of the abrasive grains. The traditional way to improve cooling is to increase the pressure and flow of coolant. On the one hand, because of the close contact between the grinding wheel and the mater...

AI Technical Summary

Problems solved by technology

[0002] Grinding, especially high-efficiency grinding, generates a lot of heat because only a small amount of coolant enters the grinding area, so a small part of the grinding heat is carried away by the coolant and grinding chips, while most of the heat remains Accumulated in the grinding arc area, causing the temperature of the grinding arc area to rise, resulting in burns, oxidation, thermal damage such as residual stress and micro-cracks on the surface of the processed workpiece, as well as blockage of the grinding wheel and passivation of abrasive grains

The traditional way to improve cooling is to increase the pressure and flow of coolant. On the one hand, because of the close contact between the grinding wheel and the material, it is difficult for the coolant to really enter the grinding area for enhanced heat exchange. On the other hand, due to the film-forming boiling of the coolant , the cooling effect of the coolant is poor

Moreover, the extensive use of cooling fluids consumes a lot of energy, pollutes the environment, and has a certain poisonous effect on the human body, which does not meet the current concept of low energy consumption and green processing.

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