You will need
- - locksmith set of keys;
- - tachometer.
The type of transfer gears are classified as follows: cylindrical, conical, worm, planetary and combined. Transmission gear distinguish gear, hypoid gear, chain, belt, screw, wave transmission and friction. For any type of gear gear ratio number is equal to the ratio of frequencies of rotation (or angular velocity) drive shaft and slave.
For timing, belt, chain and worm gears gear ratio number can be determined by the type of the elements of the reducer.Open the lid of the gearbox in order to have access to its elements.
Gear peridotite the number of teeth of driven gear N and the number Q of the teeth of the driving gear. Divide N by Q. the resulting value ratio (in number) of the reducer gear.
Belt paratacamite diameters of the driving and driven pulley. The ratio of larger diameter (leading) to the smaller (slave) — transfer number of a reducer with a belt drive.
Chain peridotite the number of teeth of a leading (large) and idler (small) sprocket. Transfer number of a reducer with chain transmission is equal to the ratio of the number of teeth of large and small stars.
The worm will predicatability the number of visits to J on the worm and the number of teeth on the worm wheel. The ratio of G to J — transfer number of a reducer , worm gear.
The transfer number can be calculated by the speed of rotation of the driving and driven shaft. Measure using a tachometer rotational speed N of the drive shaft, which is driven by a power unit (motor). It is equal to the frequency of rotation of the motor shaft.
Measure the number of revolutions n of the driven shaft, which results in the movement of the working body.
Divide the frequency of rotation of drive shaft N for the rotational speed of the slave shaft n. The obtained number is the gear ratio of this gear.