50
8.6 Brake system
8.6.1 Pliers disk brake
1. Piston 2. Friction disc assembly 3. Braking plate 4. T\Rectangular gasket
5. Locking screw 6. Pin 7. Exhaust vent 8. Bolt of cylinder cap
9. Cylinder cap 10. O-ring 11. Dust-proof ring
a. Brake
The pincer-disk brakes are used on the grader. All of them are mounted on four
rear wheels. Among them, four brakes are used for two front wheels and two brakes
for two rear wheels. Diameter of the brake disk is
Φ
450mm. There are many
advantages in the brake, such as: hydraulic braking, stable, safe and responsible
performance, good radiating-heat, simple structure, convenient maintenance and
character of resist-water-fail.
b. Structure principle
The brake is the type of fixed-clamp. The brake disk is combined with the wheel
hub, turning with the wheels. By the transition-plate, the clamp is fixed on
shaft-connected plate (See Fig. 9-10). When braking, hydraulic oil is entered into each
piston cylinder to make the piston I push the friction disk 2 and press brake disk 3 so
as to produce braking torque. After releasing hake, by elastic sc were worn, he
tolerance increase between friction discs and braking plate. Movement of the piston
produces bigger deformation than rectangular gasket. Between the piston and
rectangular gasket, it will produce opposite movement to compensate the rear of
friction discs. On friction discs, there are three longitudinal slots which are the marks
of friction. Before the rear of friction discs reaches the bottom of the slot, replaced by
new one. Loose locking screw 5, get the pin 6 out and remove friction discs to
replace.
Summary of Contents for PY180H
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