Wall surface grinding machine

Abstract

The invention discloses a wall surface grinding machine. The wall surface grinding machine comprises a shell. A high-power-density brushless motor and a controller of the high-power-density brushless motor are arranged in the shell. The high-power-density brushless motor comprises a rotor shaft arranged in the shell in a rotating mode. The rotor shaft and a drive shaft of a grinding plate of the wall surface grinding machine are coaxially arranged and are of an integral structure. The controller is arranged on one side, away from the grinding plate, of the high-power-density brushless motor. The grinding plate is covered with a dedusting protection cover. A dust collection pipeline connected with an external dust collection device is arranged on the dedusting protection cover which is connected with the shell. The axis of the rotor shaft is perpendicular to the operation face of the grinding plate and passes the circle center of the grinding plate. By means of the wall surface grinding machine, generation of carbon powder is avoided, and environmental pollution is avoided. It is avoided that a transmission device is arranged in the shell, the service life is prolonged, the energy loss is reduced, the output efficiency is improved, noise and vibration are reduced, the complex meshed installation of transmission gears is avoided, the size and the weight are decreased, and assembling is convenient.

Description

technical field [0001] The invention relates to the technical field of grinding equipment, in particular to a wall grinding machine. Background technique [0002] The wall grinder is an electric tool, and the grinding disc of the wall grinder rotates and contacts the wall to complete the grinding effect of the wall. [0003] Please refer to figure 1 , figure 1 It is a structural schematic diagram of a wall grinder in the prior art. [0004] Among them, the wall grinding machine consists of a casing 01, a dust removal protective cover 04, a motor 02 with carbon brushes (including a rotor, a stator, a motor shaft and a carbon brush) arranged in the casing 01, and a grinding disc arranged in the dust removal protective cover 04. 05 and the gear transmission 03 that connects the drive shaft of the motor shaft and the grinding disc 05. The motor 02 is arranged in the casing 01, rotated by the motor 02, and is shifted by the gear transmission 03, and then transmitted to the dr...

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Problems solved by technology

Due to the gear transmission device 03, this makes the energy loss of the wall grinder large, reducing the output efficiency of the tool, and the wear of the carbon brush and the transmission gear directly affects the service life of the wall grinder, and the wear of the carbon brush produces carbon. powder, causing certain pollution to the environment; there are many parts in the wall grinder, and the transmission gears meshing with each other will inevitably produce large noise and vibration in the process of power transmission, and it is not convenient for the assembly of the wall grinder

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