Auto-compensation-type guide device for moving coil of large-scale vibration table and operation method thereof

An auto-compensation-type guide device for a moving coil of a large-scale vibration table, comprising:

• a piston cylinder body, fixed on a table body located at one side of the moving coil, wherein a power transmission assembly is slidably arranged in a cavity proximate to one side of the moving coil in the piston cylinder body, one end of the power transmission assembly is abutted on a piston head plate inside the piston cylinder body, and another end of the power transmission assembly is extended out of the piston cylinder body and is in transmission-connection with the moving coil through a gear-type guide-wheel mechanism, a cavity located on another side of the piston head plate on the piston cylinder body is a pressurized cavity, and a wall of the pressurized cavity is provided with an oil and gas inlet;
• and
• an oil and gas compensation pipeline, in connection with the oil and gas inlet of the pressurized cavity, wherein a pressure sensor and a micro accumulator are arranged in the oil and gas compensation pipeline, the pressure sensor is configured to detect an oil pressure or a gas pressure in the piston cylinder body, and a pressure is supplied to the pressurized cavity by the micro accumulator to auto-compensate a wear of the gear-type guide-wheel mechanism.