Shock absorber parts and repair
In order to make the frame and body vibrations decay quickly, improve vehicle ride and comfort, vehicle suspension system are generally equipped with a shock absorber. Current car is widely used on double acting shock absorber. Wearing parts of the shock absorber is using in the car, Shock absorber Pistons work is good or bad, will directly affect the smoothness of the automobile and other parts of life.
First, shock absorber works
Liquid force double acting shock absorber installed in lateral front suspension, connected by rubber bushings, pins attached to the bracket on the frame and axle, respectively. Shock absorber 3 concentric cylinder, steel cylinder is outside dust cover, oil in the Middle cylinder inside cylinder; piston rings on the upper end of the dust cover, made from whole, lower fixed piston, piston rebound valve and a flow valve is installed on; working cylinder compression valve installed on the bearing and compensating valve. Shock absorber work, storage cylinder and the cylinder together with the axle movement dust cover together with the frame, piston rod and piston movement. Working cylinder filled with oil, tank tube containing a certain amount of oil. Working cylinder upper guide seals. Flow valve and compensating valves are one-way valves, softer Springs, low oil pressure can be turned on or off, compression and rebound valve valve unloading valve opening and closing pressure is high. Shock absorber Oilless sliding bushing the working process into compression and access to two stroke.
When the axle near frame, shock absorber compression. In the compression stroke, the piston moves down so that the next volume decreases, pressure increased upper plenum volume increases, oil pressure reduced inferior oil out over flow valve into the piston Chamber. As the piston rod occupy the upper plenum volume, so that the upper chamber increases the volume is less than the lower Chamber to reduce the volume, the excess oil can cut cylinders in compression valve into the tank under pressure. Oil flow through the valve hole above the throttle resistance of frame vibration damping, vibration damping. Flow valve and special construction for oil pressure and compression valve damping force is not too large, can exploit the buffer damping effect of the leaf spring.
