Friction-free constant force output gas floatation device

Abstract

The invention provides a friction-free constant force output gas floatation device which comprises a long piston, a cylinder barrel, a gas storage sleeve and a gas pressure pressing plate. The long piston is installed in the cylinder barrel in a sleeved mode, the gas storage sleeve is installed outside the cylinder barrel in a sleeved mode, the two ends of the gas storage sleeve and the two ends of the cylinder barrel are sealed through end covers and bases, the long piston penetrates through the end covers, the gas pressure pressing plate is installed in the cylinder barrel in a sleeved mode, a force sensor is installed on the lower portion of the gas pressure pressing plate, two gas storage cavities are formed between the gas storage sleeve and the cylinder barrel, the long piston and the cylinder barrel are provided with a first radial direction throttling hole, a second radial direction throttling hole, a first pressure relief tank and a second pressure relief tank respectively, the cylinder barrel and the long piston are lubricated through gas, the magnitude of gas pressure is obtained through the gas pressure pressing plate and the force sensor, the gas storage cavities are increased to store constant pressure gas, and thus constant force output is achieved. The friction-free constant force output gas floatation device is simple in structure, accurate in output force value and good in stability.

Description

technical field [0001] The invention relates to a constant force output device. Background technique [0002] According to different application environments and application requirements, there are various structures and implementation methods for constant force output. Dynamic constant force output refers to loading a constant force value on a dynamically moving target workpiece. [0003] Hanging the target workpiece through weights is the simplest and most commonly used method of applying constant force. Since the mass of the weight is constant, the force acting on the target workpiece remains unchanged, but when the target workpiece is accelerating or decelerating, the weight The weight will generate an additional force acting on the target workpiece due to the influence of its own inertial force, and the greater the mass of the weight, the greater the effect, so this method is only suitable for low-speed or uniform-speed movement of the target workpiece. Torque motors,...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems in the existing constant force output device that the output force value is difficult to keep constant, the sensor measurement is not accurate enough, and the constant force output accuracy is not high, the present invention provides a Non-friction constant force output air flotation device affected by tracheal disturbance, accurate output force value, and good stability

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