Systems Operation 784C, 785C and 785C HAA Off-Highway Truck/Tractors Power Train, страница 5

Sun gear (10) is splined to center shaft (7). Sun gear (10) is also splined to coupling hub (26). No. 3 clutch (9) is engaged. The discs of No. 3 clutch (9) hold coupling hub (26). No. 3 clutch (9) is a rotating clutch. Rotating housing (8) of the No. 3 clutch and center shaft (7) turn in the same direction and at the same speed. Rotating housing (8) of the No. 3 clutch is fastened to planetary carrier (25). Planetary carrier (25) is splined to ring gear (13). Ring gear (13) and center shaft (7) turn in the same direction and at the same speed.

Sun gear (15) is splined to center shaft (7). Sun gear (15) and ring gear (13) turn in the same direction and at the same speed. This holds planetary gears (23). The planetary carrier and output shaft (20) are driven in the same direction as center shaft (7) and at the same speed as center shaft (7) .

The output shaft turns in the same direction as input shaft (1). The output shaft and the input shaft turn at the same speed.

Power Flow in REVERSE

No. 1 clutch (5) and No. 6 clutch (16) are engaged in REVERSE speed. Torque is transferred from the transfer gears to input shaft (1). Rotating housing (2) is splined to input shaft (1). Rotating housing (2) turns with input shaft (1). Rotating housing (2) spins the plates of No. 1 clutch (5). Because No. 1 clutch (5) is engaged, the discs of the No. 1 clutch hold ring gear (28) .

Ring gear (28) turns with rotating housing (2) and input shaft (1). Sun gear (3) is splined to a stationary shaft. Sun gear (3) does not turn. Planetary gears (4) move around the outside of sun gear (3). This drives planetary carrier (29). Planetary carrier (29) turns in the same direction as input shaft (1), but at a different speed. Planetary carrier (29) is splined to center shaft (7). Center shaft (7) and planetary carrier (29) are driven in the same direction and at the same speed.

Sun gear (15) is splined to center shaft (7). Sun gear (15) spins planetary gears (23). No. 5 clutch (14) is not engaged. Planetary gears (23) spin ring gear (13). Ring gear (13) turns in the opposite direction of sun gear (15). Hub (17) is splined to ring gear (13) and to sun gear (18). Sun gear (18) turns in the same direction as ring gear (13). Sun gear (18) turns planetary gears (21). No. 6 clutch (16) is engaged. The discs of No. 6 clutch (16) hold ring gear (22). Planetary gears (21) move around the inside of ring gear (22). This drives planetary carrier (19). Planetary carrier (19) is splined to the planetary carrier and output shaft (20). Planetary carrier (19) and output shaft (20) are driven in the same direction and at the same speed.

The output shaft is driven in the opposite direction of center shaft (7) and input shaft (1) .

Lubrication of the Transmission