WES-2000W computer controlled servo horizontal tensile testing machine

Tester function, structure and characteristics: 1. The use of the brand of computer, high-precision electro-hydraulic proportional control valve, drive precision hydraulic cylinders absorb Shimadzu testing machine testing machine's advanced control technology, based on national standards for test force, displacement ( deformation) in a variety of modes of self-control, to complete the testing process control settings, test procedures test parameters, data acquisition, processing, analysis and display, control and measurement of precise and accurate control to achieve constant displacement, constant test force control, having any test force set point and hold function. And is equipped with electro-hydraulic servo horizontal test machine for Windows software, according to the standard measure of performance parameters specimen national standard or user-supplied, and the test statistics and data processing, and then output to print the various requirements of the test curve and test report , optional stress - strain test force - strain, the test force - time, the test force - displacement, displacement - time, deformation - time test curves, real-time display, zoom, compare, traversal and monitoring of the trial process. Smart and convenient. 2. Testing machine body with a double frame reaction frame structure, hydraulic cylinders mounted on the beam, the piston and the sensor through reaction frame and stretching accompanied directly connected, tensile test specimens, the loading machine head structure is simplified; and the reaction frame is connected to the rigid frame around tester body; tensile chuck body and the other side of the cross member is connected to the frame, the side of the hydraulic cylinder is mounted optical encoder, for measuring the deformation of the specimen. Flip the device at one end fitted with lifting platform height and angle adjustable sample. 3. Host side-mounted hydraulic loading system, low noise hydraulic pump and hydraulic valve units, high-precision electro-hydraulic control valve to ensure system high precision high efficiency, low noise, fast response, to achieve automatic control of the test load, commutation ; with sensitive pressure compensation system control, the hydraulic system greatly simplifies the structure, lower noise, in the non-full-load operating conditions, essentially "mute" to work without adding cumbersome cooling systems, but also no need to isolate outside noise and the hydraulic system Set the other rooms; manual control with the "delivery valve, return valve, throttle," the system clean and clear. Second, the hydraulic system control oil source is the latest developed a series of new products. The products easy to use test, control and high precision, reliability, ease of use, high control accuracy, reliability and so on. Lessons in research and development during the international advanced testing machine technology, combined with actual use of domestic users, a "unit, modular, standardized" development concept designed. The key components of the testing machine are selected domestic and international famous brands of similar products or using international advanced technology products processing is completed, greatly improving the overall performance and the international advanced level of product technology system stability and reliability of the testing machine considerably. As shown in FIG hydraulic principles, adaptive load oil into the throttle control system, manual valve control test process. Hydraulic oil tank through the motor driven gear pump into the high pressure oil passage, through the check valve, 10μ high pressure filter, pressure valve, delivery valve, into the cylinder. By manual control delivery valve opening size to control the flow into the cylinder, to meet the requirements of load. After the test is complete, open the oil return valve and cylinder unloading return. Electro-hydraulic servo motion control oil source consists of a servo valve, all-digital single-channel servo controller and computer printers, related test software, other necessary accessories and other components. Servo valve with the test machine for hydraulic servo valve. 2.2 constant servo control stations: two-stage pressure to bear pressure difference principle, an increase in work pressure, but also improve the working conditions of the pump, extend the life of the pump); the main relief valve, relief valve deputy Vice relief valve and valve, not more than 3u domestic Wenzhou dawn precision filter high and low pressure hydraulic module composed of a soft handover; Pumping American company Parker PARK hydraulic fittings and high pressure hose; equipped with double electric contact temperature table ; level control gauge; for oil temperature (less than 10oC, higher than 55oC), level control, with filter clogging or stop function. 2.3-channel digital servo controller coordination loaded Main Specifications: 2.3.1 Quantity control channels: 1, including test force and displacement two closed control loop, a control mode unperturbed smooth switching. 2.3.2 Configuring site control interfaces: 2. 2.3.3 The maximum closed-loop control data refresh rate 6kHz; 2.3.4 Controller A / D, D / A resolution of 16 bits; 2.3.5 control accuracy: control precision to an accuracy of 0.3% FS, 2.3.6 two 2.3.7 remote pump station control functions;; stage servo valve drive unit 2.3.8 other necessary I / O input and output units: four analog inputs, four analog outputs; four digital inputs, four digital output interface (optional); 2.3.9 limit parameter setting function; 2.3.10 with complete protection. In addition to overload (110%) protection, two overcurrent protection, but also has a lower limit protection on dynamic load arbitrarily set upper and lower limit protection, static load; 2.4 electro-hydraulic servo dynamic testing machine (system) control software: 2.4.1 System Management Software: This software is the foundation of all-digital servo controllers work, and its main function is to control the hardware resource management system, the definition of sensors, digital control parameter adjustment, set the protection, display the current control mode, the hydraulic and function generator status and sensor calibration, and provides dual trace digital oscilloscope, digital servo valve ammeter and 6 digital voltmeter test data for real-time display. 2.4.2 Multifunctional test software: This software is a flexible and strong, full-featured trial software, users can design a special test methods for their use, their own programming. This software will servo controller has various control functions, data acquisition and other ancillary functions as an icon do on a panel, the user can use the mouse to drag and drop icons of these functions to test the definition panel, and according to user needs random combinations together, it can be tested in accordance with Test Method for user-defined. The software can be used for random spectrum test. a) electrical control circuit with reference to international standards, in line with national testing machine electrical standards, anti-interference ability, to ensure the stability, the accuracy of the experimental data controller. b) automatic transmission: automatic switching according to load size to an appropriate scale to ensure the accuracy of the measurement data; to achieve the automatic shift-zero real physical sense, gain adjustment and test force measurement, zero, calibration, and archiving, without any analog adjustment links, highly integrated control circuit c) Conditions save: test control data and sample condition module can be made to facilitate the batch testing; d) automatic transmission: Test the speed of the process of moving the beam can be The program automatically changes the preset can also be manually change; e) Automatic Calibration: The system can automatically calibrate the accuracy degree; f) automatically saved: the test, the test data and curves are automatically saved; g) process to achieve: Test process, measurement, display, and analysis by the computer to complete; h) batch test: The specimen of the same parameters can be sequentially completed after a set; i) test software: Chinese WINDOWS interface, menu prompts, mouse; main Component configuration list: 2.5.1 oil source, a set of: (a) relief; (d) rapid unloading valve; (e) cooler; (f) filter (a prefilter, fine filter a); (g) accumulator; (h) electric contact thermometer, air filter, level relays, pressure gauges and other accessories; (I) the fuel tank, and others. 2.5.2 Controller and Control System (homemade), 1 set (including connectors); 2.5.3 software (homemade); 2.5.4 Control (homemade); 2.6 safety device a) When the test force exceeds the maximum per file 2% to 5% of the test force, overload protection, stop. b) When the piston reaches the upper limit is raised position, the travel protection, pump motor is stopped. c) hydraulic oil system overload, overvoltage, overheating, overfill protection; d) test end automatic shutdown protection; Third, the major technical indicators: maximum test force: 2000kN 2. Test force measurement range and accuracy: equivalent Effective range is: 40kN-2000kN accuracy of better than 1% (special requirements, and the other by the fee) 3. Load the hydraulic cylinder piston stroke: 0.5 m; 4. up and down from the stretch between chucks: 1 m; 5. displacement ( deformation) measurement range and accuracy: 1000mm; accuracy of better than 1%; 6. Sample stretch fixtures: wear pin-type structure; 7. protection functions: a) cylinder limit protection; b) hydraulic system overload overflow protection c) Test Force overload d) overcurrent, overvoltage protection e) end of the trial, automatic shutdown protection 8. Noise: less than 70dB four basic configurations: 1. 2000kN test machine head loading mechanism and load frame (double rigid frame) set; including: a) precision hydraulic cylinders and counter-force framework; b) the framework dual rigid frame; c) stretching up and down the clamp and connector; 2. electro-hydraulic loading system comprising: a) a low-noise high-pressure gear pump b) Pump motor directly connected to a c) high-precision oil filtering systems and piping set 3. Test electrical control system (made) a precision servo controlled hydraulic valve 4. 5. precision servo control of a hydraulic valve control system 6. a displacement (deformation) of a measuring device with a sensor test force 2000kN 7. 8. The trial-related components of a computer set 9. (Lenovo brand, 17-inch LCD) HPA4 laser printer set 10. The operation console a The sleeve 11. A set of five test aircraft-specific software installation site requirements:.. a temperature in the range of 10 ℃ --35 ℃, relative humidity less than 80%; b on a solid concrete foundation (bearing capacity of 100kN / m2) properly installed., c. vibration-free environment;. d surrounding non-corrosive media;.. e supply system is three-phase four-wire AC 380V 50Hz, voltage fluctuation range should not exceed + 10% standard voltage;. f Test power on the ground should be reliable;. g leave space around the testing machine is not less than 1m, ease of operation, commissioning and maintenance.