Hydraulic rail-impacter

The utility model discloses a hydraulic rail impactor which consists of a gasoline engine, an oil pump assembly, an oil tank, a firing mechanism, a rail impacting slider, a frame and wheels. The firing mechanism consists of a one-way firing oil cylinder, an automatic reversing valve with a reversing rod and a locking device. The automatic reversing valve is fixed on the oil cylinder; the reversing rod is connected with the automatic reversing valve by a long sleeve and a fork rod, and then connected with a plunger rod of an oil pump by a rod sleeve, a reset spring plate and a bolt; one end of the reset spring plate is fastened on the plunger rod by a hammer head, and a reset spring is connected with the reset spring plate by a spring seat and a bolt. The hydraulic rail impactor reduces the number of constructors, reduces labor intensity, shortens the operation time, improves the working efficiency, improves the operation environment of the constructors, is a special tool for relieving stress of long steel rai