Double-action multistage hydraulic oil cylinder with solid piston rod
A technology of hydraulic cylinders and piston rods, applied in the field of hydraulic cylinders, to achieve the effects of low processing costs, increased loads, and omission of welding processes
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[0023] Embodiment: A double-acting multi-stage hydraulic cylinder with solid piston rod of the present invention, as attached figure 1 As shown, it includes a first-stage cylinder liner 30, a piston 15, a piston rod 1 and several inner cylinder liners including the final-stage cylinder liner 13, and the piston rod 1 is arranged in the final-stage cylinder liner 13; the piston rod 1 is a solid rod , the bottom end of the first-stage cylinder liner 30 is provided with an oil inlet hole 21, and the other end is provided with an oil outlet hole 22; the inner cylinder liner of each stage is fixed with a piston 16, 18 outside one end near the oil inlet hole 21, and the inner cylinder of each stage The sleeve is provided with an oil guide hole 23. The oil guide hole 23 is a through hole leading to the inside and outside of the inner cylinder liner, and the two outlets are located on the same side of the piston. one end.
[0024] The first-stage cylinder liner 30 includes a steel cy...
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