I plant C516A vertical lathe, the table speed 4 ~ 200r / min is divided into 18 levels. The principle of shifting operation is shown in Figure 1. The solenoid valve turns on or closes the corresponding oil passage, and the pressure oil pushes the plunger 5 to move, and drives the shift fork 6 and the pull rod shaft 3 to move, thereby causing the Gear to be displaced, and meshing with the corresponding gear to obtain the shifting speed, and the shifting operating mechanism has 5 The sleeves are connected to four sliding gears and a friction clutch that controls the start or brake of the table, ensuring 18 shifting, starting and braking needs.
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