2. This testing machine mainly use computer and software to control the whole system, which can make the accuracy more precise. The hydraulic cylinder is imported from germany, which is high flow, good circularity and high availability. This machine can be used to test the heavy duty springs of haulage motor. This machine can adopt the electro-hydraulic servo testing system to operate.
3. The all parts of equipment can be maintained and repaired. The main functions of this machine is as follows, it can use fixed deformation or fixed load. Measurement system can be automatic zero, automatic calibration. Computer real-
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2.The operation of this machine is controlled by the computer, driving with the servo motor and transmitting precisely with ball screw. Its max load is 2000 kn(200 ton). Its testing space can be up to 2800 mm. This machine is available for three closed-loop control in the aspect of test force, displacement and speed. It uses the load cells and optional length gage.
This machine can be used to test the heavy duty springs, spring sets and the aircraft gear landing. It is worth mentioning that this machine is equipped with specialized measurement and control system that is used to test the compressibility and turning of the aircraft gear landing.
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2.The machine researched by wintime machinery co., ltd is available for both left and right direction compression springs like heavy duty springs for railway .Taped or round bar is fed.Max spindle id 50 rpm and max spring size is |¦ì 60 (w.D) *|¦ì 500 ( o.D) * 1200 (length) mm and can be custom-designed.
3.All parameters like start, ¡épitch, ¡éspindle, ¡éunwinding are adjustable and set by computer .
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2.Feed speed can be set to keep the end from being grinded over.High work efficiency.Servo motor and ball screw feed .Bar material installed easily.Bar material w.D is |¦ì10, a|¦ì70mm&o.D is |¦ì80, a|¦ì500mm&spring length is 1100mm .Max grinding wheel size is |¦ì900mm¡ê¡§36``¡ê, and can be custom-designed . 2 pieces heavy duty springs like locomotive cylindrical spiral spring , ¡é bolster springs or 4 pieces small springs like car springs or leaf springs are available at the same time.
3.It can cast v-shaped grinding machine guide rail.Grinding accuracy is high and its working condition is cleaner and more environmental than the traditional machine`s through cooling water circulation use and filtration with iron fillings.
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3. It is specially designed for testing heavy duty springs of railway rolling stock such as hi-speed railway springs or locomotive suspension springs or vehicle coil springs.Spring vertical & lateral drive and spring vertical force , spring lateral force deflection and spring stiffness measurement are available
4.Drawing of axial load , displacement or deflection , lateral force displacement curve is isochronous. Force sensor and ac servo motor and high precision ball screw vertical and lateral load , the whole process is automatic.
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