"Little comrade, what's your name? What is the academic qualification? Deputy Director Chang couldn't help but ask.

"My name is Yang Zhi, and I graduated from Harbin Institute of Technology with a bachelor's degree." As soon as I heard that it was the signboard of Harbin Institute of Technology, not to mention the deputy director of Chang, everyone in the field had a little confidence.

"Don't be busy? You said your name is Yang Zhi? Deputy Director Chang seemed to remember something. It turns out that as one of the leading enterprises in the domestic machinery industry, YTO can naturally be assigned to college students every year. However, since the resumption of the college entrance examination, Yang Zhi is the first to come from Harbin Institute of Technology, and his knowledge and technology are very good. At that time, there was a lot of sensation in the factory, and it was said that because his family was in the factory, he took the initiative to ask to come back. Chang Xinlai has also heard about this.

After communicating the situation with several other leaders, the deputy director of the factory was full of smiles: "Xiao Yang, this machine is very important to the factory, and I will trouble you now!" Obviously, he agreed to let Yang Zhi make a move. Mayor Li, who was still unceremonious to Chang and Wu and others just now, also smiled with a spring breeze: "Comrade Xiao Yang, you have to show your professional skills!" After the deed is completed, the city government and the factory will celebrate your success! Although the words were polite, he also drew a big pie, but the fierceness in his eyes was not concealed: if it is smashed, hehe, you know!

However, Yang Zhi didn't care about this. Unhurriedly changed into a work clothes, Yang Zhi didn't want to increase his mother's workload with oil. At this time, washing machines were not yet popular, and detergents were not as diverse as in previous lives, and it was really not so simple to wash off these oils by hand.

Seeing the urging eyes of several leaders, Yang Zhi began to carefully examine the stamping machine, "Where is the steel plate?" Hearing this, the worker next to him was stunned for a moment, and then hurriedly used the hydraulic arm to pick up a piece of steel plate and put it into the stamping die of the stamping machine. You must know that the stamping machine relies on the top-down impact of the load-bearing block to stamping the metal parts into the required shape. The load bracket is cast by special steel, self-weight, impact resistance, and the impact force during stamping is very large, if you do not put in the component, it is easy to damage the mold if you empty stamping.

Press the start button, the green power light will light up, the starter will start, the load support block will slowly rise up, just to fall, stamping the steel plate with gravity kinetic energy, and the bearing table made of special steel under the steel plate will be occluded, and the stamping process can be completed. Yang Zhi pressed the press button, and at this moment, the machine stopped moving, but several indicators around the machine were green, and there was no circuit failure.

It seems that the power supply is normal, because the power of the press is very large at the moment of start-up, and even if it is equipped with a dedicated power supply, it may be short-circuited due to current overload. There is no problem with the starter, so there is a problem with the large shaft that should be responsible for controlling the transmission of the load support block.

"Maybe the big shaft is stuck!" Hearing Yang Zhi's words, the eyes of several leaders who were staring at Yang Zhi intently lit up obviously, and Professor Xu's trembling hands involuntarily grabbed Yang Zhi. Yang Zhi's conclusion is completely consistent with Professor Xu's assertion just now. Although he was very dissatisfied with the problems before the acceptance, Professor Xu, as a well-known expert in China, has no doubt about the professionalism of the leader of the mechanical discipline in Jindong Province. Yang Zhi actually saw the problem, although it is another matter to solve it, but at least it can explain his professionalism!

"Please give me the tools!" Yang Zhi didn't dare to breathe a sigh of relief, after all, the work hadn't started yet. For the sake of safety, he turned off the power of the stamping machine, took the tool kit handed over by the worker, and Yang Zhi put on the headlamp. You know, although the light in the workshop is good, after all, under the cover of the huge fuselage, the light in many places of the machine is affected, and it is not possible to check and overhaul it.

Seeing Yang Zhi's skillful action from the test machine to the practical tools, Deputy Director Chang was also a little relieved, and came up with an idea: "Could it be that something fell in and stuck the big shaft?" Hearing this, Yang Zhi did not respond, but instead glanced deeply at Deputy Director Chang. Yes? It turned out that I was asked not to interject indiscriminately and interfere with him, but the deputy director of the factory who reacted couldn't cry or laugh, and could only say that this young man was really serious.

Seeing that Yang Zhi devoted himself to his work, Chang Deputy Factory Director arranged for several workers to help him. Yang Zhi took a few people to dismantle the shell of the stamping machine, and then repeatedly checked the big shaft inside with his headlamp on his headlamp. "Didn't you just take it apart and see it? Didn't find anything! Yang Zhi ignored the whispered discussion next to him and continued his work.

This scene fell in the eyes of several leaders, although they had different ideas, they all nodded in unison: This young man is very calm, not bad.

In fact, hearing the discussion, Yang Zhi also had some drums in his heart, but he did not find anything abnormal in the other parts of the test machine just now, so he could only focus on the big axis. Of course, this inner thought did not dare to show on his face.

I checked it out, and I really didn't find anything. However, there is one thing that Yang Zhi is more concerned about: some parts of the machine are stained with black oil stains, and I don't know whether it is the dirt left by the previous maintenance or the machine itself. Not to mention that these dirts are not good for the operation of the machine, but also very bad for inspection.

"Please find me some gasoline and clean towels!" Seeing that Yang Zhi got off the stamping machine and asked for these two things that didn't seem to be very related, the few workers who helped were a little hesitant. Although Yang Zhi said it politely, several of them had tried to overhaul it before, but it was fruitless. This young man claimed to be able to handle it, and he swaggered to give orders, and several people were very unhappy in their hearts.

"Comrade Xiao Yang said, go quickly!" Seeing the hesitation of several people, Mayor Li couldn't help but urge, after all, Yang Zhi has now become a lifesaver, and the necessary support is also needed. Seeing that the deputy director of Chang also nodded impatiently, a few people hurriedly went to the workshop warehouse.

After a while, the men returned with a small barrel of gasoline and a large towel. However, during this period, Yang Zhi was not idle. After checking the other parts of the machine again, he really didn't find any problems, and his attention was focused on the big axis again.

Picking up a towel to wet the gasoline, Yang Zhi wiped the big shaft and its surrounding parts. For this oil dirt, gasoline is the best solvent and cleaner. When the parts slowly revealed their original stainless steel luster, Yang Zhi looked at the headlamp again, and when he checked it carefully, the dirt was gone, and many details that were difficult to pay attention to before were also revealed. This look is really rewarding!

I saw that there were many scratches and traces of wear at the connection between the large shaft and the transmission bearing connecting the starter. As a trial of the new type of machine, the intensity of use cannot be so large, and this kind of process is very abnormal.

In order to further confirm his guess, Yang Zhi turned on the power of the machine and started the stamping machine. Sure enough, driven by the starter, the transmission bearing ran quickly, but the large shaft did not move at all, and the connection was just slippery.

It seems that there is a play! With the bottom in his heart, his self-confidence naturally recovered quickly, and Yang Zhi's cold face also improved.

Turn off the machine again, Yang Zhi removed the transmission parts together and took a look, hey! Those bearings are all worn and scrapped, and the inner and outer rings are just slipping, and they can't bring the big shaft at all!

Yang Zhi raised the scrapped bearing in his hand: "It's the bearing that is broken, you have to replace it with a new one, remember!" Absolutely do not use ordinary bearings, but use special models made of chrome alloy! Seeing this scene, most of the onlookers also understood what was going on. Professor Xu was even more angry and grabbed a person wearing factory uniforms next to him: "Bastard, didn't you repeatedly say that you want to use special bearings?" ”