The electric spindle runs at a high speed, and the good lubrication of the bearing is an important indicator to ensure its normal operation. Therefore, it is important to equip the suitable electric spindle lubrication system.
The factor related to lubrication that affects the accuracy of the operation of the electric spindle is the heat generated by the electric spindle. The internal heat source of the electric spindle comes from two aspects: 1. The heat of the spindle bearing; 2. The heat generated by the built-in motor of the electric spindle.
Solving the heating of the motor requires cooling the stator of the motor. It can be realized by circulating water cooling method to take away the heat of the motor. To solve the heating problem of the spindle bearing, it is necessary to take away the heat generated by the bearing operation in time. The traditional thin oil lubrication is to transport a large amount of lubricating oil to achieve invasive lubrication, and at the same time, the lubricating oil takes away the heat. There are disadvantages in such a lubrication method. One is to waste a large amount of lubricating oil, and the other is that the lubricating oil is rubbed between the lubricating oil molecules and the pipe to generate a large amount of circulating heat during the circulation, resulting in an increase in oil temperature. Not only can not play a good cooling effect, but also lead to an increase in bearing temperature, which is not conducive to the performance of the spindle bearing. Therefore, eliminating the generation of frictional heat between molecules inside the liquid becomes the key to solving the problem. Practice has shown that oil and gas lubrication can fundamentally avoid this situation. First, oil and gas lubrication provides a small amount of lubricant to meet the amount of lubricant required for the bearing. Secondly, the oil and gas lubrication does not cause the friction of the lubricating oil molecules to generate heat, and the clean compressed air takes away the heat generated by the bearing, keeping the spindle running at a stable temperature. This can effectively solve the problem of thermal deformation caused by an increase in temperature.
Dopo is committed to the research and development of electric spindle oil and gas lubrication for many years. With mature oil and gas lubrication products and rich application experience, it will bring more value to customers.
Doppler's electric spindle oil and gas lubrication has the following advantages:
1. The positive bearing environment can be obtained in the electric spindle bearing chamber to prevent the intrusion of external impurities.
2. Compressed air can provide good cooling effect on the bearing.
3, 1-8 points of lubrication points working independently, reliable monitoring of the oil supply situation of each lubrication point.
4. The consumption of lubricating oil is controlled by precise metering, so the consumption is very low.
5, modular structure, can increase or decrease the module components according to the number of lubrication points to achieve multi-point combination;
6, complete electronic program control, quick setting through convenient man-machine interface;
7. The oil and gas lubrication equipment is easy to operate and has low maintenance costs.
Doppler electric spindle oil and gas lubrication device has: precise and parameterized operation of oil supply, easy operation, and system monitoring of liquid level, gas source pressure and flow output. At present, it has been used for multi-home appliance spindle manufacturers.

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