Swing mechanism of Komatsu PC200-5 hydraulic system

The slewing mechanism consists of a rotary hydraulic motor, a rotary brake and a rotary reducer.

1. Rotary hydraulic motor

The rotary hydraulic motor is a tilt-shaft axial piston quantitative motor, which consists of a transmission shaft, an end cover, a housing, a plunger, a cylinder block, a oil distribution plate, a central shaft, and a safety valve and a check valve on the rear cover. .

Model: PC200 -5

Model: KMG90AB -2

Theoretical displacement: 87.8 ( cm3 / r)

Brake release pressure: 1.4 (MPa)

Rated speed: 2132 (r/min)

Safety valve setting pressure: 280+0.5 (flow rate is 140 L/min (MPa)

Model: PC220 -5

Model: KMG90AB -2

Theoretical displacement: 87.8 ( cm3 / r)

Rated speed: 2288 (r/min)

Brake release pressure: 1.4 (MPa)

Safety valve setting pressure: 280+0.5 (flow rate is 180 L/min) (MPa)

Model: PC400 -5

Model: KMF160AB -2

Theoretical displacement: 160.7 ( cm3/r)

Rated speed: 1925 (r/min)

Brake release pressure: 1. 650+0'2 ( MPa)

Safety valve setting pressure: 260+1 (flow rate is 300L/min) (MPa)

Model: PC300 -5

Model: KMF160AB -2

Theoretical displacement: 160.7 ( cm3/r)

Rated speed: 1530 (r/min)

Brake release pressure: 1. 650+0'2 ( MPa)

Safety valve setting pressure: 27.50+0'5 (flow rate is 244L/min) (MPa)