Electric brush. Drawing, description

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Electric brush. home workshop

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The metal became covered with rust, the brickwork faded over time, the painted surface lost its appearance ... In all these cases, a skin or a metal brush is taken - and stop! Aside from them - it's yesterday! The lion's share of the tedious and tedious work during stripping must be transferred to the mechanism - the electric brush.

Half of the mechanism is in front of you if you have an electric drill. She doesn't need any modification. The other half is homemade.

The brush is arranged simply (see figure): on the axis - a special-shaped bolt - two steel disks are planted. The bolt seats are square, so torque is reliably transmitted to the discs. Between them - spacer bushings, machined from pieces of steel pipe. Each sleeve carries a number of "brisles" freely located on it, made of steel elastic wire. The wire is cut into pieces 145-147 mm long, and they are bent so that a loop is formed under the sleeve. The outer long end of the "bristle" is working, the inner one is only for fixing it in the working position. When stripping is in progress, the inner ends are pressed against the bushings in front and provide rigidity to the "bristle".

It is useful to grind the working ends perpendicular to the axis of the "bristle", then the quality of the stripping will be higher.

Electric brush (click to enlarge): 1 - electric drill chuck, 2 - brush axis, 3 - nut, 4. - cotter pin, 5 - rear disc, 6 - "bristle", 7 - spacer sleeve, 8 - front disc

The tool is assembled in the following sequence: the front disk is put on the bolt, spacers are inserted into its holes, and ten "bristles" are strung on them - in a column. Then the rear disc is put on and the nut is screwed to failure, which is locked with a cotter pin. The brush is ready to go.

Author: I.Charkin

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SN65HVD82 - RS-485 interface with enhanced anti-interference and ESD protection 29.10.2015

To ensure reliable data communication, Texas Instruments offers the SN485HVD65 RS-82 transceiver with improved performance.

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Applications SN65HVD82: electricity meters, building automation, industrial networks, security systems.

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