10.6.1. Features of a design
The starter of the Chery Amulet car represents the two-port chetyrekhshchetochny electric motor of a direct current with excitement from the constant magnets, combined with a planetary reducer and the electromagnetic dvukhobmotochny traction relay.
|Fig. 10.7. Starter details: 1–the screw of fastening of the traction relay to a forward cover; 2–washers; 3–forward cover; 4–lock ring of the coupling of a drive; 5–persistent ring of the coupling of a drive; 6–drive coupling; 7–drive lever; 8–anchor of the traction relay; 9–returnable spring; 10-traction relay; 11-overlay of a support of the lever of a drive; 12-damper of a support of the lever of a drive; 13-the screw of fastening of a back cover from a collector; 14-coupling bolt; 15-satellite; 16-back cover; 17-drive shaft; 18-shchetochny knot; 19-solar gear wheel; 20-rotor; 21-stator; 22-sealing ring of a planetary reducer
Covers 3 both 16 (fig. 10.7)
and the case of a stator 21 are pulled together with two bolts 14. In the case of a stator constant magnets are fixed. Rotation from a rotor of the 20th electric motor is transferred to a shaft of the 17th drive through the planetary reducer consisting of a solar gear wheel 19, drove, made for a single whole with shaft of the 17th drive, and three satellites 15. On a shaft of a drive the roller coupling 6 of a free wheeling is established.
Shaft of a drive and rotor rotate in two ceramic-metal plugs of the bearings pressed in covers 3 and 16.
On a cover 3 the traction relay 10, an anchor 8 which via the lever 7 moves the drive coupling 6 is fixed. At key turn in the switch (lock) of ignition in situation "III" (starter) tension from the storage battery moves on involving and holding windings of the traction relay 10, an anchor 8 traction relays the lever 7 of a drive and a gear wheel of the coupling 6 of a drive of a starter moves enters into gearing with a gear wreath of a flywheel of the engine. At the same time the anchor of the traction relay closes power contacts (during this moment the involving winding is switched off) – on the electric motor of a starter tension from the storage battery moves. The rotor of the 20th starter through a planetary reducer turns a cranked shaft of the engine. After engine start-up when frequency of rotation of a gear wheel exceeds frequency of rotation of a shaft of a starter, the coupling of a free wheeling will be unblocked and revolves, thereby protecting a starter from high frequency of rotation and damages.
Technical characteristics of a starter
Rated power, kW..... 1,2
Rated voltage, In..... 12
Starter operating mode short-term, its duration to 10 pages. At negative temperature duration of work to 15 pages is allowed. The starter eats from the storage battery in capacity 60 And · h. He treats restored, served products.
To avoid many malfunctions of a starter, observe a number of simple rules at its operation:
– at start-up of the engine include a starter no more than on 10-15 with and repeatedly – through 20–30 pages. Continuous long work of a starter can lead to its overheat. If after three attempts the engine is not started up, it is necessary to check and eliminate malfunctions in a power supply system of the engine or in ignition system;
– after engine start-up immediately switch off a starter as long rotation of a gear wheel of a drive by a flywheel can lead to damage of the coupling of a free wheeling of a starter;
– do not move the car by means of a starter as it causes its considerable overload and damage.