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Chapter 1933 Suspension problem

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    "If you want to adopt the design of a light tank, you can use the Christie suspension created in the United States." Ma Sanbao suggested from the side.

    The Christie suspension is an independent suspension with large diameter road wheels and coil springs.  Named after its inventor, American engineer Christie.  The structure of this suspension is two interconnected cylindrical coil springs at the front and rear.  The front is an adjustable horizontal coil spring, and the rear is a vertical coil spring. This design has a longer suspension travel and can enhance off-road performance.

    To put it simply, this is a suspension method of road wheels made of coil springs.  When the tank is moving, it relies on the track.  The road wheel is pressed on the track. The road wheel is just like the wheel of a car. It is used to bear the weight of the tank.  Of course, there needs to be a buffer.  This load-bearing to buffer form directly determines the performance of the tank.

    Christie suspension is a famous suspension method in the 1930s, which is used in many vehicles.  But Christie, the American engineer who invented him, had no good results, because he sold this suspension to the Soviet Union.  The most famous t34 tank in the Soviet Union uses this suspension method.  This classic tank became the backbone of the Soviet Union, and Christie, who sold this suspension to the Soviet Union, was also hostile by the US government.

    There is no need for Ma Sanbao to talk about these grievances and grievances. In short, now that Qin Baoshan wants to build this kind of tank, he feels that this most classic suspension method should be the most appropriate.  As for the issue of patent rights, don't worry about those things now.

    In the United States, in addition to the classic m-4 Sherman tank, they also have light tanks.  They are also fixed by coil springs.  Much the same as Christie's soup suspension.

    Hearing what Ma Sanbao said, Qin Baoshan shook his head: "Our Eighth Route Army can't make that kind of spring."

    If you want to use Christie suspension, you must have large coil springs.  If you want to make coil springs, you need special steel materials. There is no suitable steel material for the Eighth Route Army.

    Hearing Qin Baoshan's words, Lu Da nodded there: "Yes, if we need such a large coil spring, then we need to develop special steel, and it may take a long time to develop steel."

    Qin Baoshan made a guarantee that this tank will be built in three months.  If they waste time on materials, it will delay Qin Baoshan's major event.

    Ma Sanbao considered it from the perspective of technical anxiety. After all, in the United States, there are any materials you want, and you can just purchase them directly.  In this case, if they want to build this kind of tank, they need to consider it from multiple angles.

    When Qin Baoshan said this, Ma Sanbao didn't feel unhappy because of it, he was just worried: "If you don't use this kind of suspension, then what kind of suspension are you going to use? You can't directly insert the wheels on the car body, right?"

    This is a tank, and it must have suspension. It is not a carriage, and the axle is directly combined with the car body.  Otherwise, the bumps will definitely be very violent.

    Hearing Ma Sanbao's question, Qin Baoshan didn't hold back, and said directly: "In terms of suspension, I plan to use torsion bar suspension."

    In the history of tank suspension, there used to be a variety of suspension methods, some using coil springs and some using leaf springs. However, these suspensions were eventually eliminated after the big waves washed away, and only the torsion bar suspension became the mainstream.  Of course, that kind of higher oil and gas suspension is a high-tech product, and it's all a matter of the future.  In short, for a long period of time after the end of World War II, tanks used torsion bar suspensions. Even in the era of World War II, quite a few tanks used torsion bar suspensions.

    As the name suggests, torsion bar suspension is actually a rod that can be twisted and cushioned through this twist.  It is like an oversized engine crank, inserted horizontally into the bottom of the car body.  A crank handle is exposed on each side, and the road wheel is installed at the position of the handle.  The handle is horizontal, so when the wheel bumps up and down, it will drive the handle to turn.  The horizontal section of the crank at the bottom of the car body will be twisted.  In this way, buffering is possible.  (If the explanation is not clear, please Baidu, just look at the picture and you will know.)

    The biggest feature of the torsion bar suspension is, of course, that it is simple to manufacture.  As long as the quality of the torsion bar is carefully forged, it is enough, and the technology of the Eighth Route Army can achieve it now.  And it didn't waste precious space on the side of the car body, it was directly stuffed at the bottom of the car body, not taking up much space.  Moreover, if the enemy wants to hit the track part from the side, it will not damage the torsion bar.  If it is a coil spring, then a cannon??Come here and break this spring.  The running mechanism of the tank just does not move.

    Now this kind of torsion bar suspension has become more and more common, even the famous t34 tank was replaced with a torsion bar suspension in the later period.

    Hearing what Qin Baoshan said, Ma Sanbao nodded, expressing his support for his opinion.

    Qin Baoshan continued to express his thinking: "The torsion bar suspension is characterized by a simple and reliable structure, but the disadvantage is that it can provide insufficient buffer strokes, so it is equipped with large-diameter road wheels. Although we produce light tanks,  But I also plan to equip five road wheels with a diameter of more than half a meter. In this way, climbing mountains and wading can be like walking on flat ground.¡±

    In the history of tank development, there have been many options, some using a row of small diameter road wheels.  The number is very large, and the driving is relatively stable, but because of the large number, the structure is very complicated and easily damaged.  Some use several large-diameter road wheels, which are not cushioned enough, so the tank is very bumpy, but the structure is simple and reliable.

    Although it is a light tank, Qin Baoshan also plans to use large-diameter road wheels, so that the walking mechanism is finished.  Qin Baoshan continued to introduce the transmission system.  The powertrain is equally challenging compared to the propulsion system.

    "I plan to adopt a rear-mounted engine solution. The power is directly transmitted to the two driving wheels at the back, and the power system will not be transmitted forward." Qin Baoshan continued.

    In this era, almost all tanks have the same power system.  The engine is arranged at the rear of the tank, and then the power is transmitted to the front through a long drive shaft.  In the front driver's position, there is a huge gearbox, which is then transmitted to the drive wheels on both sides, so that the power can be transmitted to the track.  It can be found that the power transmission route is very long, although it is cumbersome, but because designers from all over the world do it this way, it is almost mature, and the big guys do it like this, but Qin Baoshan proposed a different plan.  All power and drivetrains are placed at the rear, as are the drive wheels.

    ps: The driving wheel is also called the driving wheel.  (Remember the site URL: www.hlnovel.com
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