For the YD-22 hydraulic tamping machine working process due to the clamping hydraulic cylinder oil leakage problems caused by the two sides of the clamping hydraulic cylinder appeared to vary in speed,the main equipment in the strong vibration makes the piston and piston rod between the nut loosening,the hydraulic oil leakage,the system pressure is reduced.Using the selection of 0-shaped sealing ring and the piston structure of the improved design,the practical application of the effect is ideal,clamping the hydraulic cylinder without a leakage phenomenon occurs,the use of tamping machine efficiency increased by 15％,the safety and economic benefits are significant.
tamping machinehydraulic cylinderleakagesealing ring
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