When Lu Changhua returned to Bac Ninh, his focus fell on the development of new vehicles.

Acceptance of the new engine at the engine plant has already been completed.

The production license also came down.

The tractor plant is working on the optimization of new models.

Tractors are agricultural vehicles that walk on dirt roads in the countryside and carry loads in the fields when working.

The biggest requirement is that it can handle the most extreme operating environments.

In the Northeast, the biggest enemy of tractors is waterlogging and icy roads.

After heavy rain, waterlogging will form if the drainage is not timely.

The tractor could not walk at all.

At this time, it is necessary to "change shoes" for the tractor.

The Northeast is called "Big Foot".

In fact, it is to replace the wheeled agricultural machinery with chain rails.

These things were in place a few years ago, and that's what happened to them in response to the floods.

But even with "big feet", when the waterlogging is serious, it is still not easy to use.

Should the car be stuck or the car should be trapped.

For this situation, the new 18-horsepower model of the Changhe Tractor Plant was improved.

One is to increase the width of the front and rear tires and deepen the tire pattern.

This initiative requires significant financial support.

This is equivalent to the development of new tires specifically for new models.

When the tires are widened, the wheels have to be customized.

Fortunately, the rear axle plant can already be put into trial production.

Originally, they didn't produce wheels, but now they can't help it, everything is self-reliant.

When the tires are bigger, the drivetrain on the rear axle has to be redesigned, which involves the problem of power matching.

Transmission factories are also stepping up to adjust the transmission ratio of the gearbox.

It's all about getting used to brand new tires.

There's also the issue of differential locks.

The previous 12 horsepower small four-wheel tractor, its transmission was belt driven.

There are pros and cons.

The advantage is that there is a soft connection between the engine and the gearbox, which can reduce losses in the event of engine or transmission failure.

The disadvantage is that the power of the engine loses power when it is transmitted.

At that time, the 12-horsepower tractor produced by Changhe Factory was also in this transmission mode.

The later 14 hp was still belt-driven.

The new 18-horsepower model has undergone a radical change and has been replaced with a hard link. Driven by front and rear propeller shafts.

Agricultural tractors need to be used for multiple purposes.

Not only can it work in the field, but it can also be hung up on the rear trailer and run transportation on the road.

This is the requirement of the actual use of rural areas now.

For this purpose, the car is equipped with an air pump.

When working in the field, the tire pressure should be reduced, and when the road is running, the tire should be inflated.

This tractor is the embodiment of the application of the latest technology of Changhe Factory.

In particular, the emergence of a new rubber "big foot".

The "big feet" of the large combine harvesters in the northeast reclamation area are all iron or steel chain rails, which are triangular.

Self-weight, but also easy to get stuck in the car, the effect is limited.

Do you think, Dongfanghong's tractors are all trapped, and your harvester is replaced with a tractor's big feet, don't you still get stuck in the car?!

The rubber big foot designed by Changhe Factory completely broke the tradition.

It doesn't need to change wheels, but instead hangs rubber feet on the tires.

It's about putting a pair of big shoes on the tires.

In order to develop these shoes, Chen Liguo and Sergei had gray hair.

As we all know, rubber is very soft, and other wear-resistant materials need to be added to be wear-resistant.

It also needs to have a liner, otherwise it is impossible to make rubber chain rails.

Several times they have suggested that it would be easier to use steel at all.

But Lu Changhua just didn't agree.

The main reason is that Lu Changhua told them many times.

One is to reduce the dead weight, and the other is to reduce the gap between the rails of the big foot chain, so that the rubber big foot can remove the thin mud and increase the power output.

In the end, Lu Changhua came up with an idea.

Is it possible to add steel bones to each rubber rail to increase their support in this way?

They jointly designed and developed with tire manufacturers, and finally made a set of rubber feet.

This set of big feet is put directly on the tires.

On the basis of the 80 cm wide tire, 20 cm on each side has been added.

It forms a 120 cm extra-wide foot.

After the assembly of the whole vehicle was completed, practical tests were carried out.

In the case of heavy loads, the 18 horsepower wheeled tractor has excellent power output and excellent passability.

It has strong adhesion on ice and snow roads.

Provincial experts were surprised when they saw the prototype.

A small four-wheeled tractor was played by Changhe Factory.

It can be said that it is not inferior to foreign advanced tractors at all.

When applying for a production license like the Agricultural Machinery Bureau of the Ministry of Agriculture, the experts of the Agricultural Machinery Bureau were surprised.

Lu Changhua only saw the application of tractor production.

And agricultural machinery experts see more.

Soon there were experts from the logistics department who ran to the Changhe Tractor Factory.

Visited this new model.

I also drove it myself.

When Chen Liguo told Lu Changhua the news, Xiao Lu was busy making villains with Wang Yao.

He hurried to the factory.

The military expert asked with a smile: "Mr. Lu, can your big foot be transformed into a chain rail for tanks and armored personnel carriers?" ”

Hearing this, Lu Changhua was shocked.

"Our technology is not mature, especially the material process is not perfect, I am afraid that it will not be able to meet your requirements."

Why did Lu Changhua say that?

The main thing is that the big feet of agricultural tractors are walking in the mud, and the wear resistance of the chain rail is not high.

If it is equipped with tanks and personnel carriers, then its wear resistance requirements are too high.

It has to adapt to a lot of gravel roads.

Lu Changhua knew that his thing was completely out of line with military standards.

If they were to be redeveloped, they would have to be killed.

We're just a tractor factory, not a tank factory.

In the face of Lu Changhua's refusal, these experts all nodded and did not embarrass them.

The Agricultural Machinery Bureau quickly issued a production license.

Lu Changhua rushed to produce three prototype cars and held a new car launch conference in the three eastern provinces in Bac Ninh.

Leaders and experts from agricultural machinery ports in various provinces, as well as business personnel of agricultural machinery companies were invited.

For a time, Bac Ninh was lively.

Red flags are displayed, gongs and drums are noisy.

Provincial and municipal TV stations are hyping the news that Changhe Tractor Factory has launched new products.

Bac Ninh has also seen a large number of users who want to book a vehicle.

Last year, the 14-horsepower tractor of Changhe Factory became a good helper for many farmers.

Coupled with advertising and installment payments, sales increased significantly, and it made a name for itself at once.

Then, the launch of 18 horsepower this year attracted a large number of consumers.

This model not only continues the installment policy, but also proposes a solution to the pain points of many farmers.

Rubber feet are optional and can be optional.

The price of the naked car is 50,000, and the optional increase is 5000.

Buy 8,000 yuan separately in the agricultural machinery company.

When buying a car, the one-time option is cheaper, and the discount is very large.

The sales method of Changhe Factory this time is a little different from before.

It was pre-sold.

Promise to arrive within a month.

For a while, the bookers were very enthusiastic.

Peer factories can't eat grapes and say that grapes are sour, and they slander Changhe tractors in various ways.

Say, the option for the new model is an IQ tax, not practical.

Say, the price of the car is too expensive, this is the hard-earned money of the peasants.

Say, a lot of features are not necessary, they are all excuses for high prices, or simple and practical.

And so on, and so on.

To this end, Lu Changhua invested heavily in CCTV and bought the title of the newspaper.

"Changhe tractor reminds you that it is the time ...... the capital"

Now all the rumors are self-defeating.

This 18-horsepower four-wheel tractor takes into account the dual role of farmland operation and road transportation, and truly realizes the multi-purpose of one vehicle.

There are tens of thousands of orders in the three eastern provinces alone.

Chen Liguo led the marketing team to the capital again.

Agricultural machinery experts and agricultural machinery companies from all over North China are invited to participate in the order fair.

Originally, this kind of thing should not have been Chen Liguo's work, he was in charge of more than a dozen factories, and he couldn't be busy at all.

However, there is no way, who let Hu Dagui, who is in charge of this matter, have no time!

In the past few days, Wu Yue is about to give birth.

Lu Changhua couldn't bear to let his good brother go to the capital at this time.

simply went to Lao Chen.

Of course, Hu Dagui is grateful.

Wu Yue was admitted to the hospital, Hu Dagui asked for leave to accompany him, and Aunt Hu also caught up from the three-point field to help.

Wang Yao went to the hospital several times.

At this time, most people give birth to children, and they are pinching the time to go to the hospital.

I won't go until it's time to have a baby.

Why?

It's still money.

And Hu Dagui was not short of this money, he sent his daughter-in-law to the hospital early.

I've been staying for two days, and the child hasn't been born yet.

Lu Changhua was reading the report in the office when the phone rang.

As soon as I picked it up, it was Hu Dagui.

"Changhua, you're going to give birth, come quickly."

"Ah, this time it's a real life, right?"

"Zhensheng, the doctor has already pushed Wu Yue into the delivery room."

"Okay, right away."

Lu Changhua hurriedly called Wang Yao, took nutritional products, and went straight to the hospital.

As soon as the two rushed to the door of the delivery room, they saw Hu Dagui leaning against the wall, squatting on the ground, trembling with his hands and feet.

Uncle Hu didn't know when he came, and he circled in the corridor.

"Oh, old man, don't turn around, I'm dizzy when I look at it."

"Why haven't you given birth yet?"

The old beard rubbed his hands together, looking anxious.

"Wu Yue's family, who is Wu Yue's family?"

"I, I."

Hu Dagui stood up.

"If the fetus is in the wrong position, it may be life-threatening, you can sign it."

When Hu Dagui heard this, his legs went limp.

Lu Changhua said: "Hurry up and sign it, it's okay." ”

He's been there, he's had some experience.

After signing, Hu Dagui slid to the ground against the wall as if he had broken his spine.

When Lu Changhua saw that his face was pale, he comforted him.

"Don't be afraid, doctors say this to everyone, they are afraid of responsibility, and everyone has to sign."

"I, I'm panicking."

Hu Dagui has long since lost his big grin.

"Panic, I'm here, don't be afraid."

Wang Yao also came over to comfort.

It was only eight or nine minutes before a loud cry came from the delivery room.

"It sounds like a son."

Lu Changhua muttered to himself.

Only then did Hu Dagui stand up and hold Lu Changhua's shoulder.

"Son?"

"Like a son."