"It's an accident, but we have to take it seriously." Qin Zhenhua said: "If our tankers are on the battlefield and confidently aim at the enemy's tanks, and then fail to shoot, we will not only lose the fighters, but also put our own tankers in danger." This is a mistake that cannot be tolerated. is a crime. ”

Qin Zhenhua said very seriously, and at this time, Xie Huimin on the other side also had a grim face: "Yes, we won't let this kind of thing happen, we may have discovered the root of the problem." ”

Xie Huimin is also a master, and he has a high sense of responsibility for the country and the army in his heart, and of course he knows what this means.

In the tank duel, the distance is just more than 1,000 meters, at this distance, the two sides compete who is faster, who is more ruthless, the tank's firepower indicators, one of the most important indicators is the rate of fire, even if a tank faces more than a dozen tanks on the opposite side, as long as the rate of fire is fast enough, it is possible to annihilate the opponent.

In World War II, the Germans' tanks were famous for winning more with less, and during the Cold War, NATO faced the rolling torrent of armor from the Soviet Union on the opposite side, and it also intended to win with quality.

At such a time, the tank is blind? This is absolutely not a no-no.

So, the first thing to do is to find the cause of this occasional failure.

So, what is the reason for this?

The experts of the No. 2 Machine Plant are the most powerful artillery experts, and after carefully studying the design drawings and repeated comparisons, they finally came to a conclusion.

"Our firing pin, stretching out and retracting is achieved by squeezing the rotating shaft on the bolt by a pin on the curved arm, in order to avoid interference with other parts, this pin is semi-cylindrical, and the way of connection is riveting, this pin, after being squeezed by the screw shaft of the bolt body many times, began to loosen, plus firing on the vibrating tank, in the bump, this unexpected situation occurred, not tightened."

Several experts studied here and finally came to such a conclusion.

"So how do we solve it?" Qin Zhenhua asked.

There is a specialization in the art industry, how to make artillery is their business, and how to improve it is naturally the responsibility of the people of the Second Machine Factory.

"If you want to improve this, it's very simple, as long as the fitting part of this pin and the toggle arm is shortened, and then electric welding is used, so that it will not loosen."

It used to be riveting, but now it is changed to electric welding, so there should be no problems, right?

"Is this guaranteed to be 100% effective?" Qin Zhenhua asked. Odd book e-book

Xie Huimin shook his head: "Zhenhua, you are embarrassed, we all know that as long as it is a machine, there is a special parameter called the intact rate, any weapons and equipment, we will not make a 100% guarantee, that is not in line with the actual situation of engineering, we can only try to reduce the probability of this error." ”

As long as it is a machine, there will always be a chance of failure, even in the aerospace industry, to say that the reliability of the Long March-2 rocket is 99.98 percent, I dare not say 100 percent.

Although it is unlucky for the soldiers on the front line to catch up with the remaining 0.0 percent, but this is the case, we will try to reduce the probability of failure as much as possible, but this can only be reduced, not eradicated.

"I have an idea." Qin Zhenhua opened his mouth and said: "We are now using two kinds of firing mechanisms, electric and mechanical, these two mechanisms, do not interfere with each other, in order to improve the reliability of firing, can we integrate these two firing?" ”

Electric firing is to use electric current to directly stimulate the primer of the shell, and the primer of the cannonball has also been improved accordingly, which can adapt to this kind of firing, and the other, mechanical firing, is to use the manual firing pressure rod to fire, these two methods, there is nothing in common with each other, and it is also a common firing method of tank guns.

What does this mean?

Xie Huimin and others were thinking about Qin Zhenhua's plan, and Qin Zhenhua did not shirk it, and directly said his thoughts happily.

"My idea is to add a special electromagnet mechanical firing device." Qin Zhenhua introduced: "When we press the button, we not only directly stimulate the primer of the shell through the current, but also enter the electromagnet through the firing distribution box, and the electromagnet pushes the firing top plate, drives the firing ejector rod in the tail of the gun, and fires the top iron, and the next step is the same as our manual mechanical firing." ”

Electric shock is directly stimulated with electric current, mechanical fire, and the primer is completed by hitting the firing pin, and now, what Qin Zhenhua said, is to take two routes, using this way, the two ways are perfectly combined together, just at the same time as the electric shock, the mechanical fire is also started through a special electromagnet, so that in case the electric shock is not successful, the mechanical fire will also be directly supplemented.

That's right, after all, the current is faster, and the electric shock is only a dozen milliseconds, and the electromagnet takes at least eighty milliseconds to fire because of the action of various mechanical parts.

The two firing methods cooperate with each other, which can greatly improve the reliability of the firing, in case the electric firing method, because of various problems caused by blind fire, the electromagnet firing can play a role.

Hearing Qin Zhenhua's introduction, several experts present were stunned, and after thinking about it seriously, it was Xie Huimin who spoke first: "Zhenhua, your idea is very good, but the plan for our weapon design requires a simple structure and reliable function. ”

Inheriting the characteristics of the Soviet Union, the domestic emphasis is on the simplicity of the structure, once the system becomes complicated, then the probability of error will increase.

"Originally, in order to meet the electric shock, we have added insulating parts to the firing pin and the latch, take the most direct example, our firing pin is telescopic, because when the latch body is closed, the firing pin can be slowly stretched out, resisting the bottom fire of the cannonball, that is, I am afraid that when the door is closed directly, the cannonball will be fired. These are not easy, and now, we have to add another set of electromagnet mechanisms, which will greatly increase the complexity of the system. ”

The design of artillery is a very esoteric science, and the same is true for a simple firing, which is the most secure to use mechanical firing, but it is the most convenient to press the button for the long gun, so there are two ways of electric firing and mechanical firing, and now we have to combine the two methods? It's hard!