A Pulse Test System of Servo Electric Cylinder Pressurization

Abstract

The invention discloses a servo supercharger, comprising: a high-pressure cylinder and a servo electric cylinder, flanges are respectively connected to the high-pressure cylinder and the servo electric cylinder, and several screws are arranged between the flanges to connect and fix the high-pressure cylinder and the servo electric cylinder. The servo electric cylinder has two parts. The high-pressure cylinder includes: a cylinder body and a plunger. A plunger is installed in one end of the cylinder body. The plunger is connected with the piston of the servo electric cylinder. The other end of the cylinder is provided with a connecting pipeline, the connecting pipeline is connected to the cylinder through a screw sleeve, and the electric cylinder drives the plunger to make a linear reciprocating motion to compress the medium of the test piece to realize the boost and drop of the medium in the test piece. pressure, to meet the requirements of the pulse experiment, on the basis of the basic functions of the pulse experiment, it solves the shortcomings of the existing technology.

Description

technical field [0001] The invention relates to the field of test equipment, in particular to a pulse test system for supercharging a servo electric cylinder. Background technique [0002] With the rapid development of hydraulic technology, people have higher and higher quality requirements for rubber and plastic high-pressure hoses. Some conventional methods for testing the quality of hoses (such as static pressure seals, burst strength, etc.) can no longer fully reflect the quality of high-pressure hoses. quality level. Therefore, foreign countries have developed pressure pulse simulation test methods since the 1960s, using high-pressure hose pulse test bench tests and taking the number of pulses as an index to measure the quality of high-pressure hoses. At present, countries all over the world are gradually perfecting the pulse test conditions of high-pressure hoses and formulating various product standards. The corresponding pulse test equipment is also developing rapid...

AI Technical Summary

Problems solved by technology

Therefore, the disadvantages of the prior art are: 1) low work efficiency: a stable and continuous overflow high-pressure hydraulic source needs to be provided, and the hydraulic system has done a lot of useless work, resulting in a great waste of power

2) The waveform is difficult to change: due to the use of the main oil circuit low-pressure hydraulic pressure to balance the high-pressure pressure of the test piece, the peak waveform is easier to achieve, but to change the waveform requires complex control of the servo valve

3) The pressure of the hydraulic system fluctuates greatly at the moment the valve is opened. In order to make the pressure boost stable, a large-capacity accumulator needs to be installed, which increases the product cost

4) If the medium of the test piece is different from the medium of the main oil circuit, it is easy to cause the medium to move

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