Microcomputer controlled electro hydraulic servo universal testing machine adopts oil cylinder down type, worm gear transmission, mainly used for metal, non-metal stretching, compression, bending and shear test.The structure system is introduced as follows:
1, host,
Host adopt cylinder underneath, turbine worm drive (technology) from shimadzu host, stretching space is located at the top of the host, compression, bending, shear test space between beams and workbench located under the host.
2. Transmission system
Use across the moving beam of worm gear and worm drive mechanism to adjust the test space, drive system and the positioning system thoroughly separation, loading system geometric center and bearing center completely consistent, to ensure the alignment of upper and lower jaw and the durability of the host.
3. Hydraulic system (lute oil source)
The hydraulic principle is a load - adapted fuel throttle system.The hydraulic oil in the oil tank drives the high pressure gear pump into the oil road through the motor, and flows through the one-way valve, the 10 high pressure oil filter, the pressure differential valve group, the servo valve, and enters the oil cylinder.The computer sends the control signal to the servo valve to control the opening and direction of the servo valve, thus controlling the flow into the cylinder, achieving the control of equal speed test force, constant velocity displacement and so on.
GB/ t3159-2008 hydraulic universal testing machine
GB/ t228-2002 metal materials room temperature tensile test method
GB/T 7314-2005 metal materials room temperature compression test method
GB/T 232-2010 metal materials bending test method
Low noise, below 50 decibels under maximum working load, mostly silent.
The pressure is 70% less energy than conventional equipment.
The control precision is high and the control accuracy is one in 10,000.(the routine is five thousandths)
The control point can be up to 1% without controlling the dead zone.
The oil road is highly integrated and the leakage point is low.
Model | BJWA-W300C | BJWA-W600C | BJWA-W1000C |
Maximum test force（KN） | 300 | 600 | 1000 |
Structure form | 2 column +2 screw. | ||
Tester grade | Level 1 or 0.5 | ||
Test force measurement range. | 2% 100% FS matching 0.4% 100% FS | ||
Deformation measurement accuracy. | Within the range of 2%-100% of the extension meter, it is superior to + 1%. | ||
Displacement resolution | 0.01mm | ||
The piston stroke（mm） | 200 | 200 | 250 |
Maximum drawing space（mm） | 550 | 550 | 550 |
Maximum compression space（mm） | 500 | 500 | 500 |
The circle sample holds the diameter.（mm） | Φ6-Φ26 | Φ13-Φ40 | Φ13-Φ60 |
The maximum clamping thickness of flat specimen.（mm） | 0-15 | 0-30 | 0-40 |
The maximum clamping width of flat sample. | 80 | 80 | 120 |
Sample holding mode. | Internal hydraulic pressure tightening. | ||
The transmission way | Turbo worm drive. | ||
Main frame size (length * width * height) | About 900*650*2050 | About 1100*850*2250 | |
Table control cabinet size (length * width * height) | About 1100*700*930 | ||
The weight（kg） | About 2200 | About 2500 | About 3000 |
Note: stretch space and compression space can be customized according to customers' needs. | |||
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