Inner-circulation high-speed hydraulic system, hydraulic platform, and hydraulic platform assembly

An inner-circulating hydraulic platform, comprising:

• an inner-circulating hydraulic moving platform system, comprising:
• a hydraulic cylinder component, including a cylinder, a hydraulic plunger, and a housing, wherein an axial hole disposed at the bottom of the cylinder communicates with a chamber on the bottom of the hydraulic plunger, wherein at least one radial hole intersecting with the axial hole is also disposed near the bottom of the cylinder, wherein the hydraulic plunger reciprocates in the cylinder, wherein the housing contains the cylinder and forms a sealed inner-circulating oil chamber outside of the chamber and contained within the housing, wherein the inner-circulating oil chamber fluidly communicates with the axial hole via said radial hole and in turn fluidly communicates with the chamber on the bottom of the hydraulic plunger, wherein a compressed air inlet is disposed on the upper portion of the housing and an upper end of the hydraulic plunger is connected to a moving platen;
• and
• an upper fixed platform, connected to the inner-circulating hydraulic moving platform system;
• a moving platen lifting component connected to the moving platen and comprising a lifting servo motor and a lifting mechanism, wherein the lifting mechanism is driven by the lifting servo motor to enable the moving platen to perform lifting movement;
• and
• a control system for controlling the above components to act in proper time and controlling the lifting servo motor in the inner-circulating hydraulic moving platform system to operate synchronously.

An inner-circulating hydraulic platform, comprising:

• a lower fixed platform, the lower fixed platform connected to:
• at least one inner-circulating moving platform hydraulic system, comprising:
• a hydraulic cylinder component, including a cylinder, a hydraulic plunger, and a housing, wherein an axial hole disposed at the bottom of the cylinder communicates with a chamber on the bottom of the hydraulic plunger, wherein at least one radial hole intersecting with the axial hole is also disposed near the bottom of the cylinder, wherein the hydraulic plunger reciprocates in the cylinder, wherein the housing contains the cylinder and forms a sealed inner-circulating oil chamber outside of the chamber and contained within the housing, wherein the inner-circulating oil chamber fluidly communicates with the axial hole via said radial hole and in turn fluidly communicates with the chamber on the bottom of the hydraulic plunger, wherein a compressed air inlet is disposed on the upper portion of the housing and an upper end of the hydraulic plunger is connected to a moving platen;
• and
• a pressure valve component, comprising a pressure servo motor and a pressure plunger driven by the pressure servo motor to move up and down within the axial hole disposed at the bottom of the cylinder;
• a moving platen lifting component connected to the moving platen and comprising a lifting servo motor and a lifting mechanism, wherein the lifting mechanism is driven by the lifting servo motor to enable the moving platen to perform lifting movement;
• and
• a control system for controlling the above components to act in proper time and controlling the pressure and lifting servo motors in the inner-circulating hydraulic moving platform system to operate synchronously.