Two-way rotating grinding head provided with planetary grinding discs and specially used for retreading machine

Abstract

The invention discloses a two-way rotating grinding head provided with planetary grinding discs and specially used for a retreading machine. The grinding head comprises a fixed disc, an outer rotating disc, an inner rotating disc, and a middle shaft connected with a power device, wherein the inner rotating disc is arranged on the middle shaft; a transmission device is connected between the middle shaft and the outer rotating disc; a plurality of planetary grinding discs are arranged at the bottom of each of the inner rotating disc and the outer rotating disc; the transmission device is a planetary gear train which consists of a first sun gear, a first planetary gear and a first inner gear ring; the first sun gear is arranged on the middle shaft; the first planetary gear is arranged on the fixed disc; and the first inner gear ring is fixedly connected with the outer rotating disc. Through structural improvement, the inner rotating disc is directly arranged on the middle shaft, and the outer rotating disc obtains power through two-stage transmission, so that the structure is greatly simplified, and manufacturing cost and maintenance probability are reduced; and by combining the planetary grinding discs, the ground and polished texture is reversely crossed, and a polishing effect is good.

Description

Technical field: [0001] The invention relates to a special bidirectional rotating grinding head with a planetary grinding disc for refurbishment machines. Background technique: [0002] After being used for a period of time, the surface of these board-type building materials such as stone and ceramic tiles will be eroded by pollutants, resulting in dirty and tarnished surfaces. Especially for places with high requirements such as hotels and clubs, stone or ceramics must be treated. The bricks are refurbished and polished, and the refurbishment work is completed by a special refurbishment machine. In order to solve the large reaction force, difficult operation, and laborious operation of a single turntable, the traditional refurbishment machine has designed a two-way rotating grinding head, that is, the grinding head is composed of two An inner rotating disc and an outer rotating disc with opposite directions of rotation are formed. In order to drive the inner rotating disc a...

AI Technical Summary

Problems solved by technology

[0002] After being used for a period of time, the surface of these board-type building materials such as stone and ceramic tiles will be eroded by pollutants, resulting in dirty and tarnished surfaces. Especially for places with high requirements such as hotels and clubs, stone or ceramics must be treated. The bricks are refurbished and polished, and the refurbishment work is completed by a special refurbishment machine. In order to solve the large reaction force, difficult operation, and laborious operation of a single turntable, the traditional refurbishment machine has designed a two-way rotating grinding head, that is, the grinding head is composed of two An inner rotating disc and an outer rotating disc with opposite directions of rotation are formed. In order to drive the inner rotating disc and the outer rotating disc to rotate in opposite directions, the manufacturer's transmission structure design is relatively complicated. Both the disk and the outer rotating disk need to go through several stages of transmission to obtain the rotational power. The transmission efficiency is low and the structure is relatively complicated, resulting in high cost and maintenance probability

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