Three-dimensional hydraulic oscillator

A three-dimensional hydraulic oscillator comprising:

• an upper casing;
• a lower casing screwed with the upper casing;
• an upper joint screwed with an end of the upper casing;
• a lower joint screwed with an end of the lower casing;
• and
• a screw;
• wherein an upper rotating shaft is mounted in the upper casing by symmetrically disposed central bearings, a turbine group is mounted on the upper rotating shaft between the centralizing bearings, an upper cam is fixed to a lower end of the upper rotating shaft, a lower cam is movably mounted in the upper casing below the upper cam, the upper cam contacts with and connects to the lower cam, the screw is mounted in the upper casing below the lower cam through a spring, the screw is fixed to the lower cam, a lower rotating shaft is mounted in the lower casing below the spring by symmetrically disposed bearings, an eccentric block is fixed on the lower rotating shaft between the bearings, a lower roulette is fixed to the top of the lower rotating shaft, a shaft cap is disposed above the lower roulette, and the shaft cap is screwed to the lower rotating shaft, an end of the screw extends through the shaft cap and the lower roulette into the lower rotating shaft, above the lower roulette, an upper roulette is mounted on the screw in the shaft cap, the upper roulette, and the lower roulette are meshed with each other.