Analysis of the skills of the launching machine sliding bearing (1)
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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Professional skills of the sliding bearing of the machine (1) Analysis of the skills of the launching machine sliding bearing (1)
There are many types of sliding bearings on an initiator; both the bushings and the bearing bushes are attributed to the sliding bearings. In order to ensure the accuracy of the starting machine, the working clearance requirements of these sliding bearings are also high. The cause of the sliding bearings of the initiating machine is the cause of the problem. Can be attributed to: smooth critical state and any disturbances that cause damage to the working space and any material that damages the oil film. For example, device adjustment is not accurate, parts are bumpy and poorly hygienic, improper application methods, harmful chemical reactions, etc.; Incurs the damage of the sliding bearing. According to the analysis of the Cummins in the United States, the main reason for the damage of the sliding bearing is four aspects. The percentage of these four aspects is as follows: /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
1. The damage caused by hygiene is 45%.
2, due to the damage caused by the smooth side is 25%,
3, due to the application and equipment damage is 15%,
4. The damage caused by external reaction and other aspects is 15%.
From this accounting ratio, we can see that the damage caused by the degree of hygiene is the main reason. Preventing the damage caused by the poor hygiene is multi-faceted: ensuring the sanitation of the parts only when the launching machine is assembled; On the other hand, the initiator is in the process of operation. Operators and repairers must correctly use the timely protection view according to the rules; especially the initiators who work in the dusty and chemical raw materials environment for a long time; must adopt the method Prevent the corrosion of dust and chemical gases; ensure the service life of the initiator. The outer bearing alloy layer of the main bearing bush and the connecting rod in the initiator is the softest; the maximum load is accepted; and the simplest damage; therefore, the main bearing and the connecting rod The appearance of the tile is damaged; the reason for the analysis; to prevent repeated faults after the correction.
First, the problems caused by the hygiene problem:
1. Wear of small particle foreign matter on bearing pad formation:
When the oil filter element is in the oil drain plug of the engine oil bottom; the first few oils flowing out of the oil; the naked eye can be directly seen and more alloy powder; the bearing bush is now worn. This is due to the small size The impurities of the particles enter the movement of the bearing layer of the bearing shell; although the bearing bush does not form severe damage; however, such an image continues to develop; not only the early damage of the bearing bush; the shaft is also severely damaged; therefore, it is necessary to rely on the disease The reason for the timely cleaning is to prevent the damage of the formed parts. The service life of the starter bush after the fault is removed cannot be calculated according to the normal wear time; the abnormal wear amount of a small particle is equivalent to the normal wear of the machine for 2500 hours. .
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