Maintenance of ball screws and their coordination with motors will be discussed below by a THK ball screw manufacturer
Publish Time:
2021-12-20
THK ball screw manufacturer: Below, we will discuss the maintenance of ball screws and their coordination with motors
THK Ball Screw Manufacturer: Daily Maintenance Precautions for Ball Screws
It is important to know that, generally, mechanical equipment requires regular and quantitative protection and wiping with lubricants to maintain stable and good mechanical performance. However, the daily maintenance of ball screws may be more meticulous. For this type of transmission component, excessive protection will directly affect the later work performance of the transmission component. So, what are the daily maintenance items for ball screws?
1. Selection of Lubricant
Lubricants are generally divided into lubricating oil and lubricating grease. Lubricating oil is generally called machine oil, usually 90-180# high-speed turbine oil and 140# spindle oil, and lubricating grease is lithium-based grease. When using, lubricating oil and machine oil can be injected through the oil holes in the housing.
2. Remember not to use secondary lubricating oil.
Secondary lubricating oil is also called dirty lubricating oil. Using secondary lubricating oil will not only prevent the ball screw from working properly but will also increase wear and tear.
3. Seal the nut pair with a felt ring.
Normally, the nut pair is sealed with a felt ring, sometimes sealed with oil-resistant rubber or nylon material. The advantage of using a sealing ring is that it can effectively prevent dust. The benefit of dust prevention is that it can appropriately reduce the generation of frictional resistance.
The basic principle of daily maintenance of ball screws is not to forget to add oil appropriately. In addition, the effectiveness of dust prevention measures will directly affect the smoothness of later use. Importantly, do not use secondary circulating oil on the ball screw, otherwise, it may not achieve the original lubrication purpose and will instead further hinder friction.
THK Ball Screw Manufacturer: Ball Screws and Motors Should Work in Harmony
Ball screws can smoothly achieve linear reciprocating motion, but it should be noted that the selection of the motor should be appropriate. Only when the two are properly matched can they work smoothly. Once their coordination is not good enough, a large gap will be generated, hindering the linear reciprocating motion, making it impossible to proceed smoothly. Once the ball screw and motor are not well matched, the following situations may occur:
1. Poor Rotation
If the coupling is not strong enough, or the rigidity of the coupling itself is not very good, the movement between the screw and the motor will have poor rotation. In this case, the efficiency of linear motion cannot be improved, and the accuracy will also be affected.
2. Slipping
If the drive structure is not rigid enough, it will slip when it is not suitable for gear driving. This is also a symptom of insufficient coordination between the screw and the motor.
3. There is a gap between the components.
For example, if the key is loose, or the keyway is not well matched, that is, the ball screw and motor are loose and mismatched, there will naturally be a gap, hindering the reverse motion of the linear motion.
That's all for today's introduction from the THK ball screw manufacturer. Thank you for watching.
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