Multifunctional electric cutting angle grinder

Abstract

The invention discloses a multifunctional electric cutting angle grinder which comprises a motor (8) arranged in a shell (1), a large bevel gear (6), a small bevel gear (7), a middle shaft (4) and an output shaft (2). The large bevel gear (6) and the small bevel gear (7) are mutually engaged, the small bevel gear (7) is connected with a motor shaft, the large bevel gear (6) is connected with the middle shaft (4), the middle shaft (4) and the output shaft (2) are rotatably connected in the shell (1) and mutually connected by meshing gears in different transmission ratios, and a clutch device (3) is arranged between the two groups of the meshing gears and glidingly matched with the output shaft (2). The multifunctional electric cutting angle grinder also comprises a gear-shifting device (9)which is mounted on the shell (1) and connected with a clutch device (3). After adopting the structure, two gears of output rotating speeds can be realized so that the effect of cutting or grinding working pieces of different materials is favorable according to practical needs.

Description

technical field [0001] The invention relates to the field of electric tools, in particular to a multifunctional electric cutting angle grinder integrating cutting and grinding functions. Background technique [0002] Angle grinder, also known as angle grinder, is mainly used for grinding burrs and welding bumps on the surface of workpieces, and can also be used for polishing. Cutting machine, mainly used for cutting wood or sheet metal etc. Generally speaking, these are two different electric tools, but at present, a multifunctional electric cutting angle grinder with both cutting function and angle grinding function has appeared in the prior art, which includes a motor located in the housing, The small bevel gear and the large bevel gear, the intermediate shaft, the output shaft and the cutting blade or the grinding wheel are meshed with each other, the small bevel gear is connected to the motor shaft, the intermediate shaft and the output shaft are both rotatably connecte...

AI Technical Summary

Problems solved by technology

[0003] However, the electric cutting angle grinder of this structure has the following disadvantages: the most suitable rotating speed of the blade for cutting wood or metal plate is about 5500 rpm, and the most suitable rotating speed of the grinding wheel for cutting stone or grinding metal surface It is about 11,000 rpm, but the electric cutting angle grinder with this structure can only achieve a single speed output from the gear transmission structure, or the output speed is about 5,500 rpm, or the output speed is about 11,000 rpm. This means that it is not a multifunctional electric cutting angle grinder in the true sense, because: if the output speed of the blade is about 5500 rpm, the effect of cutting wood and metal plates is good, and the effect of cutting stone and grinding metal surfaces is poor; If the output speed of the blade is about 11000 rpm, the effect of cutting stone and polishing metal surface is good, but the effect of cutting wood and metal plate is poor

Images