A fully automatic piston pressure gauge

Abstract

The invention discloses a full-automatic piston type pressure gauge. The full-automatic piston type pressure gauge comprises a bottom plate, a pressure cylinder device, a motor, a measurement piston device, a digital control type force generation device and an intelligent control system, wherein the pressure cylinder device is arranged on the bottom plate, and is provided with a guide pin and a travel switch; the motor drives the pressure cylinder device; the measurement piston device is arranged on the bottom plate; the digital control type force generation device is arranged on the measurement piston device and is provided with riders; the intelligent control system is connected with and controls the pressure cylinder device, the motor, the measurement piston device and the digital control type force generation device. No weight is pressed on a piston, the riders are used instead, so pressure deformation of the piston due to swing is avoided, pressure output is stable, detection quality and calibration quality are high, digitalized control can be achieved, and metering performance of an instrument to be detected is guaranteed.

Description

technical field [0001] The invention belongs to the field of instruments and meters, and relates to a liquid pressure gauge, in particular to a full-automatic piston pressure gauge. Background technique [0002] The existing pressure gauges have the following disadvantages due to the process or design concept: [0003] 1. Although the addition of weights can be divided into manual and automatic, the obtained pressure is limited by the mechanical structure, and the output is a fixed point pressure. If the pressure point is subdivided, the equipment needs to be changed; [0004] 2. When the accuracy of the instrument is calibrated every year, the piston system needs to be disassembled. Since it involves the disassembly and assembly of the mechanical structure, professional guidance is required, so it is relatively cumbersome, and a slight negligence may directly cause equipment damage, that is, maintenance is difficult and risky; [0005] 3. At high pressure, both manual and ...

AI Technical Summary

Problems solved by technology

[0003] 1. Although the addition of weights can be divided into manual and automatic, the obtained pressure is limited by the mechanical structure, and the output is a fixed point pressure. If the pressure point is subdivided, the equipment needs to be changed;

[0004] 2. When the accuracy of the instrument is calibrated every year, the piston system needs to be disassembled. Since it involves the disassembly and assembly of the mechanical structure, professional guidance is required, so it is relatively cumbersome, and a slight negligence may directly cause equipment damage, that is, maintenance is difficult and risky;

[0005] 3. At high pressure, both manual and automatic pistons need to be equipped with a large number of pressure weights with a large weight diameter, and the ultra-high pressure piston requires a large volume space, which not only occupies volume but also wastes resources;

[0006] 4. When testing high-pressure products, such as pressure switch verification, it is necessary to manually or automatically adjust a large number of weights by manipulator first, and then perform pressure generation and judge the pressure generation. The operation process takes a long time and the efficiency is greatly reduced;

[0007] 5. Since the piston pressure gauge adopts a structure in which the weight is placed on the piston, the piston will be bent and deformed due to the swing during high-pressure rotation, so it is difficult to ensure that the piston is concentric and vertical to the ground, making the gravity of the piston unstable and causing pressure Output fluctuations greatly reduce the accuracy of pressure output;

[0008] 6. Traditional piston equipment has no electronic circuit, which requires certain operator proficiency, and lacks the convenience brought by human-computer interaction of modern electronic technology.

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