Processing and disassembly process of sprocket

usually,SprocketDivided into 24 teeth evenly distributed, the angle between the two teeth is 15°, and the end point of one tooth shape is the starting point of the next tooth shape.In actual machining, the coordinate system is rotated by a certain angle after each tooth is milled, and then continued milling reduces the workload of programming.

In order to simplify the machining program of the sprocket, the relative coordinate command G91 is used to rotate the coordinate system, and the writing of the calling subprogram for each tooth can be omitted.When programming, the machining of one tooth shape is used as the benchmark, and the end point of a tooth shape machining program is used as the starting point of the next tooth shape machining, and so on.

In terms of their use, sprockets can be divided into two types: driving sprockets and driven sprockets. The driving sprockets are combined with the engine output shaft in the form of splines and fixed with spline baffles or nuts.When disassembling, you can remove the sprocket cover and remove the chain, and then unscrew the spline baffle or the fixing nut to pull out the small sprocket.When assembling, proceed in reverse order.

The disassembly of the driven sprocket starts from supporting the main support frame to make the rear wheel tilt; then loosen the rear axle fastening nut and the adjuster nut, and remove the chain box and chain; then disassemble the rear brake lever, Pull out the rear wheel assembly together, remove the bolts, nuts or retaining rings that fix the sprocket together, and remove the rear hub of the sprocket or the pin bolts.