Analysis of Factors Affecting the Performance of Electric Spindle
Published on:
2022-01-27
High running speed is one of the characteristics of electric spindle, and good lubrication of bearing is an important indicator to ensure its normal operation. Therefore, it is very important to have a suitable electric spindle lubrication system.
High running speed is one of the characteristics of electric spindle, and good lubrication of bearing is an important indicator to ensure its normal operation. Therefore, it is very important to have a suitable electric spindle lubrication system.
The heating of the motorized spindle is the factor related to lubrication that affects the running accuracy of the motorized spindle. The internal heat source of the electric spindle comes from two aspects: 1. the heating of the spindle bearing; 2. The heating of the motor inside the electric spindle.
To solve the problem of motor heating, it is necessary to cool the motor stator, which can be realized by circulating water cooling to take away the heat of the motor; To solve the problem of spindle bearing heating, it is necessary to take away the heat generated by bearing operation in time. The traditional thin oil lubrication is to transport a large amount of lubricating oil to achieve intrusive lubrication, and at the same time, the lubricating oil will take away the heat. This lubrication method has disadvantages. First, a large amount of lubricating oil is wasted. Second, a large amount of circulating heat is generated by the friction between lubricating oil molecules and between lubricating oil molecules and pipes during the circulation of lubricating oil, which leads to the rise of oil temperature. At this time, the lubricating oil can not only have a good cooling effect, but also lead to the rise of bearing temperature, which is not conducive to the performance of the main shaft bearing. Therefore, the key to solve the problem is to eliminate the friction heat between molecules in the liquid. Practice shows that oil air lubrication can fundamentally avoid this situation. First of all, a small amount of lubricating oil provided by oil air lubrication can meet the amount of lubricating oil required by the bearing. Secondly, the oil air lubrication will not generate heat due to the friction of lubricating oil molecules. At the same time, the clean compressed air will take away the heat generated by the bearing to keep the spindle running at a stable temperature. This can effectively solve the problem of thermal deformation caused by temperature rise.
Dopsey has been committed to the research of oil and gas lubrication of motorized spindle for many years. With mature oil and gas lubrication products and rich application experience, it will bring greater value to customers.
The oil air lubrication of the motorized spindle of Topsey has the following advantages:
1. The electric spindle bearing chamber can obtain a positive pressure environment to prevent the intrusion of external impurities.
2. Compressed air can have a good cooling effect on the bearing.
3. 1-8 points are independent lubricating points, which can reliably monitor the oil supply of each lubricating point.
4. The consumption of lubricating oil is controlled by metering, so the consumption is very low.
5. The modular structure can increase or decrease the module components according to the lubrication points to achieve multi-point combination;
6. Fully electronic program control, fast setting through convenient man-machine interface;
7. Oil air lubrication equipment is simple to operate and low in maintenance cost.
The oil air lubrication device of Dopsey motorized spindle has the following features: parameterized operation, simple operation, and the system realizes the monitoring of liquid level, air source pressure and flow output. At present, it has been used by many home appliance spindle manufacturers.
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Chongqing Guanlei Auto Parts Co., Ltd
Email: 674169002@qq.com
Address: 3-1, Unit 1, Building 5, No. 9, Gangning Road, Jiangbei District, Chongqing