Static stiffness testing machine

1. Main uses and scope of application of testing machines

Product design, manufacturing, and inspection are based on the following standards and relevant provisions:
1) GB/T2611-2007 "General Technical Requirements for Testing Machines"
2) TB/T2626-1995 "Technical Conditions for Rubber Pads Under Railway Concrete Sleepers"
3) Technical conditions for double-acting elastic side bearings (Q/QC35-091-2000)
4) Technical conditions for axial rubber pads for bogies (Q/QC35-092-2000)
5) GB/T16491-2008 "Electronic Universal Material Testing Machine"
6) JJF1103-2003 "Evaluation of Computer Data Acquisition System of Universal Testing Machine"
7) JJG139-1999 "Calibration Regulations for Tensile, Pressure and Universal Testing Machines"

1.1 This testing machine is the latest static stiffness testing instrument of elastic pads developed by our company and is suitable for use in scientific research institutes, industrial and mining enterprises, etc. The testing machine can also be used to test the static stiffness test characteristics of locomotive drawbar rubber joints, motor boom rubber joints, axle box tie rod rubber joints, connecting rod rubber joints, etc.It has the advantages of exquisite structure, low noise and high precision.The entire mechanical structure, from the AC servo motor to the reducer, adopts a fully sealed structure. There is no need to replace the lubricating oil during use, and there is no pressure oil leakage or proportional valve blockage; it belongs to a new generation of environmentally friendly testing machines.

1.2 The testing machine adopts a two-column frame structure, which has good rigidity and the whole machine has a compact structure. It uses a high-precision load sensor to measure force, with high testing accuracy and accurate force value, making the whole machine reach higher accuracy.The upper fixed beam of the testing machine serves as the upper load-bearing plate of the machine. The lower loading plate is installed at the center of the machine. The sample is loaded upward under the action of the driving screw. The AC servo motor and control, drive and transmission systems are installed at the lower part of the main machine. The machine is surrounded by cover plates to keep it clean and safe.

1.3 This testing machine uses imported AC servo motors and drivers as the control system to drive a precision cycloidal pinwheel reducer and a precision ball screw pair for testing. It can achieve a wide range of adjustment of the displacement loading speed (0.05-30mm/min), control with high precision, and the test process is smooth and efficient.

1.4 Use a brand-name microcomputer, equipped with special software for rubber static stiffness testing machine based on Windows2000/XP full Chinese operating system platform, in the form of human-computer dialogue; conduct tests according to national standards or standards provided by users, complete the setting of test parameters during the test process, control of the test process, data collection, processing, analysis, recording and display, and the control and measurement are precise and accurate.It also performs statistics and processing of test data, and then outputs and prints test curves and test reports required by various requirements, which is smart and convenient.

1.5 This testing machine adopts microcomputer control and has control modes such as constant velocity test force, constant velocity stress, and test force maintenance.It realizes functions such as screen display, disk storage, and database management of test data and test curves.The products have the characteristics of high precision, superior performance, high reliability and easy operation.The test measurement and control system uses a fully digital controller as the core of the control system, which can realize on-screen display of test force, test force peak value, beam displacement and test curve. All test operations can be completed on the computer screen by mouse input, or can be completed through the display screen using the function keys and numeric keys on the panel. It has a good human-machine interface and is easy to operate.

1.6 It has the function of returning to the initial position after the test, which is efficient and fast.

1.7 It has limit position protection, overload (2%FS), and overcurrent protection functions at the working position, which is reliable and safe.

1.8 Build a powerful self-built test database, and test data can be saved, queried, and called at any time.

1.9 This machine has a strong expansion function. By adding attachments, it can complete compression, bending and other tests of other materials.

2. Main technical parameters of the testing machine