Combining the advantages of gear transmission and belt transmission, it has become the main transmission unit in the transmission system of foreign CNC machine tools. Synchronous toothed belts are widely used in mines and agricultural machinery in China, but they have not been widely used in machine tool design, especially in CNC machine tools. The reason is mainly because the manufacture of synchronous toothed belts in China still does not meet the requirements of anti-fatigue, high torque and wear resistance required in machine tool transmission. With the influence of reform and opening up in recent years, the synchronous toothed belt produced by China has been fully used as a transmission unit in the transmission of CNC machine tools. Our factory has had very successful experience in the use of synchronous toothed belts, such as the CNC sizing roller lathe designed for the Tianjin Seamless Steel Tube Plant. In the longitudinal (axis) feed of the tool holder, the synchronous toothed belt is used. The drive has gained a successful experience. The advantage of this type of transmission is that the influence of the gap caused by the gear transmission on the accuracy of the transmission component is avoided, thereby improving the transmission precision of the transmission member. The pre-tightening force is small, and the shaft load is light and can be directly connected to the servo motor. The transmission system reduces the moment of inertia of the motor, improves the positioning accuracy of the transmission components, and reduces the noise of the machine tool. In the numerical control transformation of the old equipment, the advantages of the synchronous toothed belt are more remarkable. Since the local structure of the machine of the old equipment can not be changed, the original machine tool is numerically modified while maintaining the rigidity of the original machine tool without being damaged, and the use of the synchronous toothed belt is particularly important. For example, our factory was the first to verify the numerical control of the lathe on the lathe produced by the railway department. The non-falling wheel pair lathe is a kind of machining equipment for processing railway wheel pairs developed in the century. Due to the stricter requirements on the shape of the curved surface of the workpiece wheelset, hydraulic profiling was used at that time. However, due to various reasons, such as joint oil leakage, the follow-up valve is vulnerable to damage, etc., resulting in high product failure rate and short service life. The user wants to change the hydraulic profiling process to CNC profiling. However, due to the limitations of the old machine structure, the motor cannot be connected to the actuator. (Because the AC servo motor torque is used in the design, the current production in China is not so small. The motor with short torque is matched with the CNC system, so the application of the synchronous toothed belt plays a decisive role here. Split Sheath Cartridge Heater Rod Split Sheath Cartridge Heater Rod,Split Sheath Cartridge Rod,Split Cartridge Heater For Mould,Single Thread Fitting Cartridge Heater,Heating Tube for Machinery Great Source Electric Heater Tech Co., Ltd. , https://www.greatsourceheater.com