Ji Chongxuan's words made the atmosphere in the conference room seem to have condensed to freezing point.

Listening to this big shot telling the current embarrassment facing domestic mine hoists, everyone began to worry about the future of this product in their own factory.

After seeing everyone's negative reactions, Ji Chongxuan waved his hand and smiled: "I've told you so much, but I don't mean to scare everyone away."

"What I want to say is that I am very confident about this mine hoist in our factory..."

Turning his eyes to Zhao Guoyang in the middle, Ji Chongxuan said seriously: "Mr. Zhao has just clearly explained the advantages and disadvantages of mine hoists at home and abroad."

"I believe everyone has heard that he has a lot of research on many technologies of mine hoisting machines. With him in charge of this project, I think there is a great hope for this product to succeed."

After Ji Chongxuan finished speaking, he reached out to Zhao Guoyang and made a gesture to signal that his speech was over.

After hearing the boss praised him, Zhao Guoyang scratched his head a little.

He really didn't expect that Mr. Ji had such great confidence in him. With his strong support, it would be a bit unreasonable if he couldn't find his mine lifting machine.

In the following time, Zhao Guoyang talked to you about some problems and difficulties that may be encountered in the design of mine hoists.

First of all, of course, the design of the spindle device.

Zhao Guoyang glanced at Zhao Siyan beside him and said, "About the design of the spindle, let's ask Minister Zhao Siyan to explain in detail to you. If you have any additional information, you can directly raise it."

After listening to his instructions, Zhao Siyan began to open her notebook and talk about it in detail.

"Mr. Zhao has told you before that the two basic models of our mine hoist. Basically, we have decided on two types: single-cylinder spindle device and double-cylinder spindle device."

"There are a big difference between the two and need to be discussed separately. Mr. Li and I are the opinion of the company to draw elite soldiers and strong generals from our company's product research and development department and technical department to develop these two models at the same time..."

When Zhao Siyan talked about this, some technicians asked questions: "Minister Zhao, is it too hasty to develop two models at the same time?"

"After all, our company has never had such mechanical experience in production before. If you take a rash two-pronged approach, there will definitely be problems, right?"

After hearing this, Zhao Guoyang interrupted and said, "Hey, don't worry, everyone."

"The working mechanism of the two models designated by our SMS company, that is, the spindle part, is somewhat different. They are basically the same in terms of braking systems, mechanical transmission systems, lubrication systems, observation and control systems."

Turning his head and glanced at Zhao Siyan, Zhao Guoyang continued: "In other words, as long as we design the spindle parts of the two models, we can do it synchronously."

Through this series of performances just now, Zhao Guoyang has become a "guideline" among the technical personnel of SMS.

Basically, what he said, in everyone's opinion, is the "golden law".

After helping Zhao Siyan explain a few words, Zhao Guoyang nodded to her and signaled her to continue talking.

Zhao Siyan nodded slightly and said, "First of all, I will first tell you the difference between a single-cylinder spindle device and a double-cylinder spindle device!"

"The single-cylinder spindle device consists of a reel, a spindle, a main bearing, a left and right wheel wheel, etc., among which the main bearing is a sliding bearing."

"Its revolver is slidingly matched with the main uranium, and the right drum is pressed on the main shaft and fixed with the main shaft with a strong tangential key."

"The coupling between the reel and the right wheel hub is all made of refined fit bolts, and the coupling between the reel and the left wheel hub is made of refined fit bolts and ordinary bolts with a number of - and a half."

"The double-tube spindle device consists of main components such as spindle, main bearing, two reels, four wheels, rope adjusting clutch, etc. Its fixed reel is installed on the transmission side of the spindle, and its connection with the wheel hub is the same as that of the single-tube active device."

"Its swimming roll is on the non-transmission side of the spindle. The coupling of the swimming roll and the swimming roll are made of half of each refined fitting bolts and ordinary bolts. The right support wheel of the swimming drum is in two halves, and is installed on the spindle through two halves of copper tiles..."

Since we have purchased and analyzed a domestic mine hoist before, we will not feel confused or confused about Zhao Siyan's story.

Zhao Guoyang observed and found that most of the technicians were taking notes seriously and recording some of the key points Zhao Siyan told.

"Basically, our two series of mine hoists include tangential keys, brake wheels, cylinder shells, wooden linings, bevel gears, handwheels, spindles, small winchs, worm wheels, worm gears, brackets and other parts."

"Among them, the most critical part, the spindle device, is all made of welded by Q345 steel plates, and the inner part of the roll is equipped with a thick elastic support structure..."

When Zhao Siyan talked about this, Zhao Guoyang coughed and made a pause gesture to her.

Noting his eyes, Zhao Siyan was a little confused, but she quickly stopped talking.

Zhao Guoyang silently put down the teacup and said slowly: "Minister Zhao just mentioned the problem of the roll material of the spindle device, everyone should pay special attention to it."

"I know that our conclusion about the use of Q345 material for spindle reels was derived from the domestic mine hoist I purchased. In fact, there is nothing wrong with this."

"but!"

Zhao Guoyang suddenly changed his tone, "Feedback from most of my products in the international market shows that Q345 steel is no longer the mainstream steel for spindle device reels..."

When Zhao Siyan heard this, she felt a sudden slap in her heart.

On the other hand, Li Zhaohe was also confused, not knowing what the mainstream materials in the world are now.

Zhao Guoyang did not ask them to wait too long, and soon continued to tell: "According to what I understand, when designing spindle device reels in foreign mine hoists, the materials are all set at 16Mn."

"Although both materials can be used as spindle reel designs, the difference between the two is still obvious."

"Q345 is a low alloy high-strength structural steel; while 16Mn is a pressure vessel, carbon steel low alloy steel forgings are used. Compared with the two, the 16Mn thio content requirements are stricter and the quality requirements are stricter."

"16 Mn and Q345 are the same in general use, but it is undoubtedly more safe to choose 16 Mn for more important components such as spindle device reels..."

After Zhao Guoyang's remarks, everyone gradually understood.

Indeed, compared with 16Mn, the performance gap in Q345 is still very obvious.

Especially the first product in our factory, you must be very cautious. If you use Q345, you will feel a little uneasy.

After Zhao Guoyang reminded him, Zhao Siyan quickly recorded this carefully, and then began the following technical analysis.

...

Driving in a small car and driving to Songqi Group, Zhao Guoyang couldn't help but recall the first technical seminar held by the company yesterday about the mine hoist project and the first technical seminar.

After half a day of meeting, everyone basically had a clear understanding of this project, and the division of tasks has been clarified.

Basically, the current situation is that Li Zhaohe and Zhao Siyan, one person leads a team, and first completes the design of the spindle devices of the two mine hoisters.

Then, after the two teams finished designing, they combined two into one and carried out a series of subsequent designs.

As for Ji Chongxuan and the students he brought, they serve as the project technical support team and serve the two design teams at the same time.

The spindle device is the most important part of the mine hoist. This is not just a simple matter of purchasing products from other manufacturers and changing them slightly after disassembly. It requires equipment with the data of your own product.

Of course, Zhao Guoyang has helped Li Zhaohe and Zhao Siyan complete the theoretical analysis and overall design.

The following details need to be improved and improved bit by bit during research and development.

Zhao Guoyang is not able to get involved in the matter with the "SMS company".

After all, after the spindle device is designed, it still requires expert certification and review.

Although I have the ability to do this, it takes too long and does not have the permission of a professional institution. Instead, it is better to invite experts to come and take a trip.

After the morning meeting, Zhao Guoyang chatted with Mr. Ji during lunch.

Judging from the words of his old man, it seems that he has the intention of asking General Manager Wang Yuliang to take a trip in person.

As the chief expert of the China Academy of Engineering research on heavy machinery and equipment, if Chief Engineer Wang Yuliang really can come here, it will undoubtedly be a great news for the first mine hoist in his factory.

However, Zhao Guoyang could also hear that Mr. Ji still had some doubts about whether to invite General Manager Wang.

After all, it was because of his disheartenedness that he stepped down from his prominent position and started some basic research work.

When General Manager Wang was gradually healing his trauma, if he rashly invited him over, it would bring him a new blow.

Although Zhao Guoyang has strong confidence in his mine hoist product.

But he didn't dare to make a full promise, and this product would definitely be comparable to the international advanced level.

If Chief Executive Wang is dissatisfied with his own company's products or brings up some bad memories, Zhao Guoyang will definitely feel uncomfortable.

After thinking for a while, the cell phone Zhao Guoyang placed next to him suddenly rang.

When I answered the phone, Chairman Mao's ups and downs came from it: "Guoyang, is it coming soon? I'm all the people here, just wait for you to pull them!"
Chapter completed!