Functions and operations of hydraulic pressure tester

Let's share some functions, uses and operations of hydraulic pressure test machines. First, let's introduce its hydraulic system. After the oil in the oil tank is sucked into the oil pump through the filter oil net, it is sent to the oil delivery valve through the oil pipe of the oil pump. When the oil delivery handwheel is closed, the piston is pushed open due to the oil pressure, and the oil flows back to the oil tank from the return pipe. When the oil delivery handwheel is opened, the oil enters the working oil cylinder through the oil pipe, and then flows back to the oil tank through the pressure oil pipe through the oil return valve body.

We introduce a block share some hydroulic pressure testing machine function and operation,we first introduce the hydroulic system, the fuel tank through the filter net oil is sucked into the pump, the pump oil pipe to the oil supply valve, when the oil feeding hand wheel is closed, because the oil pressure and the piloton pushed away, the oil from the oil return tank,oil feed handwheel when opened, the oil fluid through tubing into the working cylinder, and then through the pressure oil through the oil return valve to tank.

We have also sorted out the specific operation steps, hoping that it will be helpful to everyone.

Specific operation, we also finishing it, we hope to help.

1. Unscrew the oil return valve to lower the pressure plate and remove the crushed sample.

1, unscrew the oil return valve, so that the lower platen down, take out the test samplecrushed.

2. Record the required load value and lift the depiction pen.

2, record the need to load value, and described the pen up.

3. After the sample is crushed, close the oil supply valve and stop the oil pump motor.

3, the sample after crushing, closes the valve, and stop the oil pump motor.

4. According to the test requirements, slowly unscrew the oil supply valve for loading test.

4, according to the requirements of experiment loading speed, slowly unscrew the oil supply valve for loading test.

5. Turn on the crossbeam motor to lower the upper pressure plate to about 10mm from the sample, and then turn the handwheel on the crossbeam to make the upper pressure plate come into contact with the sample surface.

5, use the beam motor, the upper pressing plate dropped from the sample of about 10mm, and then rotate the handwheel on the cross beam, the upper pressing plate in contact with the sample surface.

6. Adjust the active needle and passive needle to zero and close the oil supply valve.

6, the active and passive needle need adjustment to zero, close the oil supply valve.

7. Turn on the oil pump, unscrew the oil supply valve, so that the wheels of the lower pressure plate leave the track about 10mm.

7, start the oil pump, the oil supply valve, so that the plate under the wheels out of orbit of about 10mm.

8. Roll the recording paper on the rotary drum of the drawing drum. This item is only done when necessary. Operation process of hydraulic pressure test machine

8, in the description of drum drum roll pressure recording paper, this just when needed.Hydraulic pressure testing machine operation process

9. According to the required measurement range of the sample, hang or remove the corresponding oscillating thallium on the swing rod, and align the marks on the buffer valve handle with the marks.

9, according to the samples required measuring range, on a swing rod hung or disassembledthe pendulum thallium, and the buffer valve handle on the reticle alignment mark.

10. Push the lower pressurized plate into the test machine and align it with the center.

10, the lower pressure plate is pushed to the testing machine, and alignment.

11. Turn the main switch on the power supply and place the sample on the lower pressure plate.

11, the total switch on the power, the specimen is put in with the plate.

Hydraulic universal testing machine