The ball screw, sensor, motor, software and hardware, and transmission system of the 10kN Universal Testing Machine are an important part of the testing machine. How to choose a high-quality testing machine, these five factors play a decisive role.
1. Ball screw
The 10kN Universal Testing Machine currently uses a ball screw and a trapezoidal screw. Generally speaking, the lead screw clearance is relatively large, the friction force is relatively large, and the service life is short. At present, some manufacturers in the market will use trapezoidal screws instead of ball screws in order to save costs and obtain greater profits.
The sensor is an important part of the accuracy and force measurement stability of the testing machine. The types of 10kN Universal Testing Machine sensors currently on the market include S-type and spoke-type. The accuracy of the internal resistance strain gauge of the sensor is not high, the anti-aging ability of the glue used to fix the strain gauge is not good, and the material of the sensor is not good, all of which will affect the accuracy of the sensor.
The high-quality 10kN Universal Testing Machine motor adopts AC servo speed regulation system, Panasonic AC servo motor, stable and reliable performance, with overcurrent, overvoltage, overload and other protection devices. At present, there is also an 10kN Universal Testing Machine on the market that uses an ordinary three-phase motor or a variable frequency motor. This motor is controlled by analog signals, the control response is slow, and the positioning is inaccurate. Generally, the speed regulation range is narrow. No high speed and inaccurate speed control.
4. Software and Hardware
The high-quality 10kN Universal Testing Machine adopts brand computer, and the control system software is WindowsXP operating system platform. It has the characteristics of fast running speed, gentle interface and simple operation. It can meet the test and measurement needs of different materials. It can be based on national standards, international standards or industry standards. Tests to measure physical properties of various materials.
5. Transmission system
There are two main types of transmission parts of the 10kN Universal Testing Machine, one is the arc synchronous gear belt and the precision screw pair transmission; the other is the ordinary belt transmission. The first transmission mode has stable transmission, low noise, high transmission efficiency, high precision and long service life. The second transmission method cannot guarantee the synchronization of the transmission, so the accuracy and stability are not as good as the first transmission system.