Following Gu Shunzhong, Xiao Zhifeng and his team, Zhao Guoyang and his party came to the finished product warehouse of the "Talented Bull Machinery Manufacturing Factory".

Seeing the two factory directors bringing people over, the warehouse manager hurriedly trotted all the way to lead the way.

"Xiao Liu, let's go see the mine hoist imported from South Korea. You and the people below don't have to follow you." Xiao Zhifeng waved his hand to the person in charge.

"Yes, yes... Mr. Gu, Director Xiao, those mine hoists are all on the east side of the warehouse. You two will turn left after entering the door and you will see it in one go!"

A group of men entered in a row. After entering the warehouse, the warehouse manager Xiao Liu had already turned on the light switch behind them.

Gu Shunzhong was quite satisfied with this guy with a lot of insight and nodded slightly.

Everyone turned to the road on the left for less than three minutes, and dozens of brand new mine hoists appeared in front of everyone.

When Zhao Guoyang saw these equipment, he identified their type - multi-rope friction hoists.

This is the same type as the first mine hoist of "SMS" company and is also the mainstream mine hoist currently used in international and domestic iron ore and coal mines.

After seeing the mine hoist in front of him, Gu Shunzhong's confidence came back.

He smiled and made a "please" gesture, leading Zhao Guoyang and the others to approach the equipment at close range.

"Mr. Zhao, look, this is the mine hoist that our factory just imported from the 'Hydramatic Heavy Industry Group'."

Turning his head to look at Xiao Zhifeng, Gu Shunzhong winked at him and said, "Old Xiao, please introduce the structure of these equipment to Mr. Zhao and all the guests!"

Xiao Zhifeng nodded quickly and explained in detail.

"Mr. Zhao, dear guests, this mine hoist is what is commonly called a multi-rope friction hoist. Its main components include the main shaft, main wheel, main bearing, vehicle groove device, reducer, depth indicator, brake device and guide wheel, etc.."

"Well, we have heard of these. Multi-rope friction hoists. There are several domestic engineering machinery factories that can produce them, right?"

Liu Yan said casually.

Xiao Zhifeng was happy when he heard this: "Ms. Liu said this well. At present, there are three or four domestic companies that can produce multi-rope friction hoists. May Day Heavy Industry and Pengcheng Engineering Machinery Group are among them."

"but……"

Seeing Xiao Zhifeng pausing deliberately, Zhao Guoyang pretended to be impatient and said, "But what? Director Xiao, are you saying that your imported products are better than May Day Heavy Industry and Pengcheng Engineering Machinery Group?"

Xiao Zhifeng smiled slightly and said slowly: "Mr. Zhao, who is stronger, who is weaker, can't listen to our family's words? In this way, let me talk about the advantages of our imported mine hoist!"

"Listen attentively!" Zhao Guoyang's eyes lit up and he nodded repeatedly.

"First of all, let's talk about it from a small perspective."

Xiao Zhifeng touched his nose and said slowly: "Generally speaking, the main wheel of the mine hoist is the key to its movement. The importance of the friction pad with rope grooves on the surface of the main wheel is naturally self-evident."

Zhao Guoyang naturally knew what Xiao Zhifeng said.

Not to mention him, the three graduate students from Beijing University on site were also well aware of this, let alone Zhao Siyan, the director of the product research and development department.

Of course, because of acting, although everyone was very clear about the situation, their expressions were not revealed at all. They all looked serious and listened to the explanation of Director Xiao.

Xiao Zhifeng was a little satisfied with being paid attention to Zhao Guoyang and others like this.

He said with his chest and belly-sagging opening: "It is obvious that this friction pad should have a high coefficient of friction, wear and pressure resistance, and the quality of its material directly affects the production capacity, working safety and application range of the elevator."

"At present, among the same products in China, the most commonly used padding materials include polyvinyl chloride or butyl rubber."

"Although these materials have good mechanical properties, they are not that durable in terms of wear resistance, at least, not the most reliable one."

"The friction pads used in our imported mine hoist are polyurethane rubber material. This material is not widely used in China, so Mr. Zhao, you may not have heard of it."

Listening to Director Xiao’s talk, Zhao Guoyang was secretly amused.

Speaking of materials, there are two top students in the material department, Liu Yan and Tang Wanru, so what's so great about this polyurethane rubber material?

You know, their graduate thesis is about the replacement materials of polyvinyl chloride.

Among them, polyurethane rubber material is also one of the first choice replacement products.

Of course, at this moment, Liu Yan and Tang Wanru could only pretend to be taught and watch Director Xiao pretending to be "elephant".

After talking about the materials of the friction pads, Xiao Zhifeng turned his attention to a brand new device of the mine hoist.

"Mr. Zhao, you must have been to other construction machinery factories before and have seen many products of mine hoists, right? But you may not be able to see this device in China."

Following the direction of Xiao Zhifeng's finger, Zhao Guoyang and Liu Yan turned their attention to the console of the mine hoist.

A device similar to a scale meter is suddenly placed there.

There is indeed no such device in our own "SMS" company. Whether it is Zhao Siyan, Liu Yan, Tang Wanru and others, they all showed curiosity.

As for Zhao Guoyang, of course, he couldn't not know what this thing was.

"Well, is this the automatic zeroing device? When I went to England to attend a construction machinery product exhibition, I saw this device on a mine hoist from Jessebe (JCB) company!"

After Zhao Guoyang said this, Gu Shunzhong and Xiao Zhifeng looked at each other, and were all extremely surprised.

Although they had believed in Zhao Guoyang's identity as a "rich second generation", the other party was actually rich to go to England to participate in the exhibition of construction machinery products, and his identity as a rich man is definitely worthy of his name.

It’s not a big deal that these two people are shocked. You know, in the early 1990s, the cost of going abroad was at least tens of thousands of yuan, which was a sky-high price for many families.

Although due to reform and opening up, the households of 10,000 yuan have gradually become less scary.

But if you take out tens of thousands of yuan to go abroad to participate in exhibitions, such a family will definitely be either rich or noble.

After understanding this, Xiao Zhifeng didn't dare to make it bigger, so he could only explain with a smile: "Mr. Zhao is really knowledgeable. That's right, this is another major innovation that different from domestic products in our imported mine hoist - automatic zeroing device."

"Due to the inevitable creeping and sliding between the wire rope and the main wheel pad, the depth indicator deviates from the zero position when parking, it is very necessary to equip the automatic zeroing device to automatically point the pointer to the zero position during each parking..."

After Xiao Zhifeng no longer pretended to be reserved, the introduction speed increased a lot.

He pointed to some of the mine hoists and explained from time to time: "This is a truck groove device, used to turn rope grooves, keeping the diameter consistent, which is conducive to the uniform tension of each wire rope."

"This is a spring-mounted reducer, which can greatly reduce the vibration of the machine."

While Director Xiao was giving everyone a popular science on the mine hoist, Zhao Guoyang's attention was on the mechanism of the mine hoist itself.

Because he is familiar with South Korean characters, he can fully understand the instructions and product introductions on this mine hoist.

In the product introduction, one of the biggest advantages of this mine hoist was mentioned, but this Director Xiao did not understand it.

This mine hoist from "Hyundai Heavy Industry Group" is a friction hoist that uses built-in type.

Its structural principle is that the working machine and the driving machine are combined into one and integrated with microelectronics and information technology. Its characteristics are that the motor is installed inside the drum or friction wheel.

This integrated electromechanical whole is both a working machine and a driving machine. The convenience is secondly, and the most important thing is to save power conversion and greatly improve efficiency.

In addition, as an electric motor, it is also different from the traditional construction.

This type of internal friction hoist is not the stator outside or the rotor inside, but the opposite.

Speaking of which, the built-in hoist started production as early as 1988.

The world's first built-in hoist was put into operation since the 7th Well of the New Rumberg, at the German House Ardenne Mine.

This mine hoist from "Hyundai Heavy Industry Group" is undoubtedly a plagiarized Germanic idea in many aspects, but this does not mean that it is a relatively excellent mine hoist.

After some observation, Zhao Guoyang had already understood the general situation of this mine hoist.

Compared with the products of its own "SMS" company, it still has certain advantages.

First of all, this built-in structure is beyond the reach of your own products.

However, after seeing the maximum static tension and maximum lifting angle of this mine hoist, Zhao Guoyang gradually let go of his worries.

There is no doubt that in terms of these two most important technical parameters of mine hoists, it is undoubtedly the products of its own "SMS" company, which should be more competitive.

As for the benefits of the built-in structure, although it is obvious, it is not as good as the one that can completely crush the traditional structure.

Its stability is still an unknown number before it is tested.

Especially this built-in structure, you can tell at a glance that it is a Germanic imitation of "Modern Heavy Industry Group". There will definitely be flaws in terms of maturity.

In this case, your own products will not be too disadvantageous in competition with it.
Chapter completed!