YJW-20000 Microcomputer Controlled Electro-hydraulic Servo Compression Shear Testing Machine

Project overview

YJW-20000 microcomputer controlled electro-hydraulic servo Compression and Shear testing machine controlled by microcomputer top mounted cylinder and four columns, with high rigidity and strength and small deformation. It can meet the detection requirements of plate type, basin type and spherical bearing of highway and railway bridges. The test space is stepless adjustable, which is convenient for the test requirements of different heights. The self-developed special multi-channel closed-loop coordinated loading electro-hydraulic servo control system is adopted. The microcomputer controls and coordinates the multi-stage hydraulic loading, the continuous loading is stable, and the multi-stage test force is maintained. The data are collected and stored automatically, the curve is drawn, and the test report is automatically printed. The computer timely controls the test process, displays the test force and test curve, and the operation is simple and reliable.

Type of test

This machine is used to test the mechanical properties of the finished product of highway bridge rubber bearings. Can respectively be:

Plate support

Compressive elasticity modulus test

Ultimate compressive strength test

Shear modulus test

Shear bonding performance test

Shear aging test

Friction coefficient test

Allowable angle test

Basin support

Vertical bearing capacity test of finished support

Friction coefficient test of finished bearing

Rotation test of finished product support

Spherical steel support

Vertical bearing capacity test of finished support

Friction factor test of finished support

Determination of the rotational torque of the finished product support

Main technical indicators and parameters

Vertical loading part

1. Capacity:20000kN.
2. Load measurement range:0.4%～100%.
3. Load measurement accuracy: ±1%.
4. Column clearance:X direction 1520mm,Y direction 1030 mm.
5. Displacement resolution: 0.001mm.
6. Piston speed adjustment range:0.1～40mm/min.
7. Piston travel of the vertical cylinder:900mm.
8. Displacement measurement range:0 ~300mm.
9. Piston displacement measurement accuracy:±0.5%.
10. Load resolution:±1/500000 of Max capacity, no stepping, no change in full scale.
11. Axial deformation measurement range:0～50mm.
12.    Four grating digital displacement sensors were used to measure the vertical deformation of the specimen.
13.    Four grating digital displacement sensors were used to measure the radial deformation of the specimen.
14. Platen clearance : 900 mm.
15. Maximum test space:900mm.
16. Compression platen dimensions:1200mm×1200mm.
17. Trolley pressing plate size:1200mm×1200mm.
18. Control method and data processing:computer servo control system and data (test force, displacement) graphic acquisition and processing, etc.
19. Force measuring method:high-precision load cell measuring force;Using low-damping combined sealing element, the test force remains stable and reliable.
20. Device Ddimensions：L×W×H  8000×2350×5400mm.
21. Material Quality (Cross Beam, Down Platen, Small Cross Beam)：45 steel.
22. Column Dimensions ：Dia. 280 mm.

Transverse cut part

Horizontal shear capacity:4000kN.

Load measurement range:0.4%～100% .

Load measurement accuracy: ±1%.

Piston travel of the vertical cylinder:400mm.

Piston speed adjustment range:0.1～60mm/min.

Horizontal shear deformation measurement range:0 ~400mm.

Displacement measurement accuracy:±0.5%.

Deformation measurement division value (mm):0.001.

Deformation measurement: two grating digital displacement sensors measure the transverse shear deformation of the sample.

Lateral deformation measurement range:0 ~150mm.

Deformation measurement accuracy:±1%.

Force measuring method: high-precision load cell measuring force.

Horizontal shearing device lifting: adjustment of floating hydraulic cylinder.

Load holding function: high-precision imported servo valve load holding, multi-level control of transverse shear force.

Imported combined sealing elements are used, and the test force remains stable and reliable.

Control mode: hydraulic loading, electro-hydraulic servo closed-loop control, high-precision load sensor measurement, screen display.

Corner part

Rotation lifting capacity:2000kN.

Test force measurement range:0.4%-100%.

Test force accuracy:±1%.

The maximum stroke of the oil cylinder:200mm.

Piston speed adjustment range:0 .1~60mm/min.

Displacement measurement range:0 ~200mm.

Displacement measurement accuracy:±0.5%.

Deformation measurement range:0 ~50mm (using four vertical sensors).

Deformation measurement division value:0.001mm.

Deformation measurement accuracy:±1%.

Deformation measurement:Four grating digital displacement sensors measure the overturning deformation of the sample.

Force measuring method: high-precision load cell measuring force.

Load holding function:high-precision imported servo valve load holding, multi-level control of corner force.

Imported combined sealing elements are used, and the test force remains stable and reliable.

Control mode: hydraulic loading, electro-hydraulic servo closed-loop control, high-precision load sensor measurement, screen display.

Normal working conditions of the testing machine

The testing machine should work normally under the following conditions.

Within the range of room temperature 10 ℃～35 ℃.

The relative humidity should not be greater than80%.

The fluctuation of the power supply voltage of 380V should not exceed ±10% of the rated voltage.

Power frequency 50Hz , three-phase five-wire system.

The working environment should be free of shock and vibration.

No obvious electromagnetic field interference, no corrosive media around.

Install horizontally on a stable foundation, the height shall not be greater than 0.2/1000.

Quality Assurance

After the equipment is formally inspected and accepted on the demand side, it will be deemed to be officially delivered.The equipment warranty period is one year from the date of official delivery.If the equipment fails during the warranty period, the supplier shall provide the buyer with services in a timely manner, actively assist the buyer in completing the maintenance tasks, and provide life-long services.