A pressure independent pressure making system

Abstract

The invention discloses a pressure making system, which comprises a piston cylinder (11) and a piston (10) for making pressure, the piston (10) is connected with a lead screw (7), and the lead screw is connected with an axially fixed The screw sleeve (6); the screw sleeve is connected with the first servo motor (1) that drives the screw sleeve to rotate through a clutch (4); the pressure output end of the piston cylinder is connected in parallel with the connection table seat (27) of the pressure gauge (28) ), and pressure relief valve (24); the pressure chamber at the rear of the piston cylinder pressure output end is connected to the output end of a booster valve (23), and the oil supply end of the booster valve is connected to the oil outlet of the pre-pressure pump (20) The oil inlet of the preload pump is connected to the oil cup (25); the pumping actuator of the preload pump, the opening and closing action mechanism of the pressure relief valve, and the switching action mechanism of the booster valve are respectively connected to the power output through the clutch part. The invention has the characteristics of simple operation, convenient use and high efficiency, and can be used in conjunction with a weight loading system to realize a fully automatic piston pressure measuring robot and solve the problems existing in the current piston pressure gauge.

Description

technical field [0001] The invention relates to a pressure making technology during pressure gauge measurement, in particular to a pressure making device suitable for a piston-type pressure measuring robot. Background technique [0002] Pressure is one of the important process parameters in industrial production, and pressure gauge is an instrument used to measure pressure. If the pressure does not meet the requirements, it will not only affect production efficiency, reduce product quality, but even cause serious safety accidents, so pressure measurement has a special status in industrial production. Therefore, the pressure gauge should be calibrated when it leaves the factory or after a certain period of use, and the instrument used is a piston pressure gauge. The piston pressure gauge integrates pressure building and pressure calibration, and is equipped with weights of appropriate accuracy, which can be used for calibration and measurement of the measured object. At pre...

AI Technical Summary

Problems solved by technology

At present, the pressure generation and control of piston pressure gauges are all realized by manually providing power. The possible problem is that when a large pressure needs to be loaded, the operator needs to provide a lot of force to achieve it, resulting in artificial manual labor. Larger, especially the operators of the pressure gauge detection are mostly women, and the work intensity is high and the efficiency is low to achieve high pressure pressure; at the same time, due to the manual operation to achieve pressure pressure, it is easily affected by factors such as the operator's emotion and experience , when used in conjunction with a system such as a coding device, the formation of a specific pressure is completely achieved by manual control, resulting in a large or small pressure loading, an unstable process, or even damage to the pressurization or coding device; during the loading process, it is necessary Manually operate the switch valve, the operator's strength is unstable, and it is easy to cause pressure leakage

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