The function of the reducer in the device is the same, that is, the speed of the prime mover is high, and the speed required by the working device is low, and the acceleration and deceleration device is used to change the speed (rotation speed). For example, the synchronous speed of the commonly used motor is 1500 , 3000 rpm, and the speed is lower, the volume is large, and the cost is high. It is better to use the motor + reducer. In addition, the motor speed is binned, and there is no intermediate speed in the two gears. Diesel engines and the like cannot be operated at low speeds.
It is well known that the drive source of CNC cutting machine comes from the servo electric motor. In order to improve the running precision of the equipment, most of the current CNC cutting machines are gear electrodes and reducers. With the advancement of industry, electric motors have also been moving towards precision, efficiency, control and innovation. However, due to the cutting machine itself, the mechanical fit has also progressed from a progressive screw to a precision ball screw. The conditions of the load feed system are quite different. It is necessary to add a reducer to increase the torque, improve the load inertia matching, and make the feed run smoothly. It is even more difficult to make precise positioning control, and the general ordinary reducer is inefficient, large in size and short in life. Therefore, the use of high-precision low backlash planetary gear reducer is still the best match, can eliminate the above difficulties.
And the motor drive system constitutes a complete transmission system. As one of the transmission components of the CNC cutting machine, the reducer provides the running power for the CNC cutting machine, and also guarantees the whole running precision. Then the speed reducer is used in the numerical control cutting machine. What is the role of how to work? Before we talk about the function of the reducer, we need to understand the characteristics of the motor work.
Due to the high input speed of this type of reducer, CNC cutting machines use high-precision, low-backlash planetary gear reducers, most of which are used in the feed device. High torque density, high strength torsional rigidity, low backlash, low noise value, easy installation, suitable for any assembly direction, the reduction ratio is sufficient and complete, so that the menu of CNC machine tools is now in a more stable and precise realm. Compact structure, small size, high rigidity, high torque density, coaxial input and output make the design more flexible and light. More than 96% high transmission efficiency, maintenance-free, long life, modular design and installation and easy to install, both positive and negative can be applied, good thermal conductivity, not easy to rise, so it is the best choice for CNC machine tools.
The role of the reducer in the CNC cutting machine configuration is:
1. Increase the output torque of the servo motor, such as the 750W+ reducer output power is much larger than the 2KW servo motor.
2. The cutting machine moves very slowly. If the servo motor is not added, the low-speed crawling phenomenon will occur, and the vibration will affect the cutting quality.
3. Matching motor inertia positioning is more accurate
In short, when the prime mover speed, motion law, shift range, etc. are not satisfied with the working machine, the transmission device is needed, and the speed reducer is the most used and simplest transmission device.
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