Computer controlled electro-hydraulic servo universal testing machine
Introduction:
ZT-3009 microcomputer-controlled electro-hydraulic servo universal testing machine adopts cylinder under-type and four-column main machine, which is mainly used for tensile, compression, bending and shear tests of metal and non-metal. Applicable to metallurgy, construction, light industry, aviation, aerospace, materials, universities, research institutes and other fields. The test operation and data processing are in accordance with the requirements of GB228-2002 "Temperature Test Method for Room Temperature Materials".
Main technical parameters:
the maximum test force |
1200kN |
Test force measurement range |
20KN-1200kN |
Test force indication accuracy |
±1% |
displacement measurement resolution |
0.01mm |
deformation measurement accuracy |
± 0.5% |
the maximum movement speed of the piston |
80mm / min |
the maximum tensile test space |
800mm |
the maximum compression test space |
550mm |
flat sample clamping thickness |
0-15mm |
round sample clamping diameter |
φ13-26mm φ26-φ40mm φ40-φ60mm |
pressure plate size |
φ160mm |
bending test roll spacing |
450 mm |
roll width |
140mm |
fulcrum diameter |
φ40mm |
piston stroke |
200mm |
clamping method |
hydraulic clamping |
Dimensions |
Main unit: 960×650×2500mm; oil source: 1100×700×950mm |
the whole machine weight |
3500 kg |
Program description:
1.The host
Features:
1) The main engine adopts the cylinder under the type, the stretching space is located above the main machine, and the compression and bending test space is located between the lower beam of the main machine and the work table.
2) Sturdy four-column and two-screw structure design, the stability of the whole machine is extremely strong.
3) The upper beam adjusts the test space by moving the lower beam through the support of the support rod, which makes the test operation more convenient.
4) The cylinder is sealed by gap, which improves the measurement accuracy and increases the service life.
2.Transmission system
The chain mechanism adjusts the test space, and the geometric center of the loading system is consistent with the force center, ensuring the coaxiality of the upper and lower jaws and the durability of the host.
3.Hydraulic system
3.1 Hydraulic principle
As shown in Figure 2, it is a load-adapted oil inlet throttle speed control system.
The hydraulic oil in the fuel tank drives the high-pressure gear pump to enter the oil passage through the motor, and flows through the high-pressure oil filter, the differential pressure valve group, and the servo valve to enter the oil cylinder.
The computer sends a control signal to the servo valve to control the opening and direction of the servo valve, thereby controlling the flow into the cylinder to achieve control of the constant velocity test force and constant velocity displacement.
3.2 Features:
1) High-pressure gear pump with low noise and stable pressure.
2) The integrated design of the power system and the operation console is convenient for operation and saves experimental space.
3) The surface is spray-coated and has a beautiful appearance.
4)The control system