Siheyuan: Starting from a fitter

Chapter 42 Precision Motor
After dinner the next day, I bought a box of snacks and went to the hospital to visit Sister Wang. Only Sister Wang and Aunt Liu were in the ward.

"I'm here to see you again, Sister Wang," Aunt Liu teased, and Sister Wang also showed a meaningful smile.

"Sister Wang, I see you look good, let me feel your pulse." As he said that, he shamelessly sat in front of the hospital bed and began to feel your pulse.

"Recovering very well..."

After chatting awkwardly for a while, Li Guocheng offered to leave, and Aunt Liu sent him out.

"Xiaoting is on a mission, and she probably won't come to the hospital again in the short term. If there are no accidents, I will live in Jing'er Hutong in the future, and Xiaoting will go there after her mission is over," Aunt Liu said with deep meaning.

Li Guocheng smiled knowingly, "Thank you Aunt Liu" and waved goodbye.

In the days that followed, Li Guocheng practiced Qigong every day, maintained machine tools, and finished machining parts. On weekends, he either went to Zhang's hometown to improve the food, or went to Tongrentang to learn acupuncture and traditional Chinese medicine from his senior brother.Every Saturday after get off work, I would go to Jing'er Hutong to see if Zhao Ting was back, but unfortunately the task never ended.

Such dull days continued until the beginning of November 65. The finishing of the components used for machine tool modification had been completed, and they were quietly placed on the shelves, waiting for the stress to be released.During this period, Wu Liankui slowly dropped his attitude and even called Li Guocheng brothers. He imitated Li Guocheng and called Wang Gong Uncle Wang and Master Yi Master Yi. The three of them behaved the same way. Although they accepted each other's joining, they never went too far. close.

In the middle of the year, the drawings have been completely revised and optimized. After 3 months of stress relief, they can be assembled. At this time, Li Guocheng focused on the motor. The matching motor is a brushed DC motor, which requires an AC-DC conversion box, and the motor is Brush wear leads to frequent replacement of brushes and phase converters. There are too many disadvantages. The motor is large, has low reliability, is prone to sparks, is noisy, and requires a lot of maintenance.Therefore, Li Guocheng wanted to replace an AC motor, which is characterized by low noise, direct drive with three-phase industrial electricity, and high reliability.

After communicating with Wang Gong, he took Li Guocheng to the motor unit and introduced him to Lao Matou, the monitor of the motor unit, whose motor maintenance skills are second to none.Of course, the main maintenance at this time is to replace the stator coil. The main problem with the rotor is the bearing, which can also be replaced directly. The bearing can be produced in the third workshop.

After a week of watching, Li Guocheng quickly mastered the winding principles and methods of 12 sets of stator coils. Through Wang Gong's coordination, he received all the motor materials and parts, and prepared the bearings to be manufactured and assembled by himself.

First, the coil winding of the stator is completed. Each group of coils pursues uniformity and perfection, and the enameled wires are of equal length to ensure that the magnetic field at each position is consistent and there will be no obvious mutation.

After receiving the semi-finished product of the bearing, Li Guocheng used all his skills. The inner lining of the bearing showed a complete circle. Only Li Guocheng himself could sense this through telekinesis modeling testing and scanning. Currently, there are no tools to measure it. The balls are also standard circles. Through Li Guocheng's master-level assembly techniques, it can be said that the two bearings in his hands are the most perfect in the world.

After the bearing and stator are installed first, install it into the frame, turn the stator by hand, and carefully adjust the dynamic balance with a small file according to the feeling.Because it was a delicate job, it took Li Guocheng a week even with his ability.

After Li Guocheng processed all the parts into the most perfect state, he carefully started the assembly of the entire motor.Since the parts for machine tool transformation are naturally released on the shelves, the current work of the trio is mainly machine tool maintenance. Wu Liankui stayed in the technical department after completing the drawings and did not come to the laboratory again.Therefore, the assembly of the entire motor is basically only known to Li Guocheng himself, and no one else has paid serious attention to it.

After Li Guocheng fixed the motor, he turned on the power and turned on the power, only to hear a faint humming sound from the motor, and he put a round metal piece that had been processed long ago on the motor casing, and the metal circle was always stable. Stand where the ground is, quietly put away the metal sheet, and then observe the output shaft, close to the ear, the output shaft rotates smoothly, and the sound of the shaft driving the air is smooth and smooth under Li Guocheng's sensitive ear, which shows that the dynamic balance adjustment of the rotor is very well adjusted.After feeling it for a while, Li Guocheng knew that this was his most perfect work so far.

Knowing what he knew, Li Guocheng quietly put away the motor and waited for the machine tool to be installed before joint debugging. By then, the noise from the gear box would cover up the excellence of the motor.Until now, Li Guocheng felt that he had gone too far and wanted to deliberately make some flaws on the motor, but he couldn't bear it.Make up your mind that you will never try the motor before the machine tool is installed.

The entire motor manufacturing, from planning to testing, took three weeks, and the time is about to enter December.

Now there is a light wind blowing outside. On the surface, everything in the steel rolling mill is as usual, but Li Guocheng knows that there is an undercurrent surging underwater.

I walked out of the workshop with excitement and a sense of accomplishment, and found that it was snowing heavily outside. Except for a few people in the factory, everyone else had already gone home from get off work.Because of his cultivation, Li Guocheng has been protected from the cold and heat. In order not to stand out, he deliberately wears cotton-padded clothes and trousers, but they are relatively thin. When others see him, they think he has no money or time to buy thicker clothes.This is exactly what Li Guocheng hoped for.

I stepped on the heavy snow, crunching, and returned to the courtyard with a relaxed attitude. As soon as I finished eating porridge and Erhe noodle steamed buns, I was informed to attend the hospital-wide meeting. I was not afraid of the cold, so I couldn't stop.

History once again proved his strong inertia. The chicken-stealing plot still happened. Li Guocheng couldn’t remember whether the specific time of Heyuan’s plot was the same. Later generations watched it fast-forward on the computer without paying much attention to the details.

The people in these courtyards are not afraid of the cold. They gather around the middle courtyard one by one. If they didn't stomp their feet left and right, they would almost become snowmen.Li Guocheng pretended to be cold, curled his neck, hugged his arms, and stood on the periphery, watching the plot unfold. The only difference was that the performance of the uncle was not as aggressive as in the plot, and his performance was relatively fair, but Silly Zhu was in the abnormal state of the uncle. Under such circumstances, he actually awakened himself to help others, and once again took on everything.

Looking at Qin Huairu, he only stared at Silly Zhu pitifully from the beginning to the end, and no longer paid attention to the other men in the compound, including Li Guocheng, who had tried many times. Li Guocheng knew that Widow Qin had recognized the reality, and Silly Zhu It is the most reliable big cow of the Jia family.

Is Shazhu stupid?I am not stupid at all, I know that my reputation has been ruined by myself, and of course Widow Qin and Xu Damao have joined forces to ruin it. Watching Widow Qin closely, she thought she was talking.Others are afraid that the Jia family will suck blood, but Silly Zhu is not afraid. It's just a little food. Have you ever seen a cook starve to death?Coupled with the strong clique gene of the old He family that likes pretty widows, Silly Zhu is now enjoying it endlessly.

Some people like fat people, some people like thin people, some people like beautiful women, and some people like people of the same sex. . .As the saying goes, there are all kinds of birds in the forest.

In this era, if a man over the age of 22 does not get married, he will be suspected of having problems with the man, let alone a fool in his 30s. If you want to find someone in the city, you can only find a widow now.The eldest daughter of Huanghua has been married a long time ago, and no one in her mother's family is afraid of getting married.The one looking for the countryside was heartbroken again by Qin Jingru.Who is as beautiful as Sister Qin among the widows, and who is as beautiful as Qin Jingru from the countryside? Nowadays, Shazhu's mind is all about beauty, and of course, there is also the graceful figure that makes Shazhu unable to sleep.If you don’t believe it, when did Silly Zhu ever get up before 10 o’clock?Is this the state that a powerful and powerful man should have?
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(End of this chapter)