Planetary grinding head with oil leakage prevention mechanism

Abstract

The invention discloses a planetary grinding head with an oil leakage prevention mechanism. The planetary grinding head comprises a planetary gear shaft and a bearing pedestal, wherein the bearing pedestal is in sleeved connection with the planetary gear shaft, and a planetary gear is arranged at the top of the planetary gear shaft; a first annular groove is formed in the lower end face of a base body of the planetary gear, and a first annular convex slot in clearance fit with the first annular groove is formed in the upper end face of a base body of the bearing pedestal; the bearing pedestal is further provided with a pressure relief channel which is arranged at the bottom of the first annular convex slot, and the pressure relief channel communicates with the outer wall of the base body of the bearing pedestal. The planetary gear rotates around the axis of the planetary gear under the action of external force so that the planetary gear shaft can be driven to rotate at a high speed relative to the bearing pedestal. The pressure relief channel is arranged at the top of a deep groove ball bearing assembly, excessive lubricating grease permeating into the bearing pedestal can be drained off under the condition that the planetary grinding head is oblique laterally or inverted, and high pressure caused by internal temperature rising of the bearing pedestal can also be released.

Description

Technical field [0001] The invention relates to the field of grinding head equipment, in particular to a planetary grinding head with an oil leakage prevention mechanism. Background technique [0002] At present, in the existing ceramic tile polishing production line, the polishing grinding heads often used in the polishing and waxing sections are mostly planetary wheel drive polishing grinding heads. The existing planetary grinding head is mainly composed of planetary gear shafts, planetary gears, bearing seats, and grinding wheel discs. When working, the planetary gears and self-rotating sun gears mesh when the entire planetary grinding head rotates around the sun gear, so that the planetary gears drive The planetary gear shaft rotates around its own axis, and then drives the grinding wheel to rotate to process the product. [0003] However, during transportation or installation of the planetary grinding head, the planetary grinding head will be inclined or inverted, and the lub...

AI Technical Summary

Problems solved by technology

[0003] However, during the transportation or installation of the planetary grinding head, the planetary grinding head will be tilted or inverted, and the lubricating grease will enter the bearing seat from the labyrinth groove with clearance fit. During use, the internal temperature of the bearing seat will rise. High air pressure will increase, which will squeeze the lubricating grease down, eventually causing oil leakage

In addition, the deep groove ball bearing with a sealing cover itself has less lubricating grease, and the sealing cover is not completely sealed. After the bearing is used for a period of time, the self-contained lubricating grease will become thinner due to temperature rise and the viscosity will decrease. The sealing cover leaks out, and there is no lubricating grease in the bearing, which is easy to damage

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