Views: 105 Author: Site Editor Publish Time: 2019-08-22 Origin: Site
Motorcycles are two or three-wheeled vehicles driven by gasoline engines and steered by hand. It is characterized by lightness, flexibility and fast driving. Motorcycles are widely used in patrols, passenger and freight transportation, and also as sports equipment. Motorcycles are divided into street cars, road racing motorcycles, cross-country motorcycles, cruise cars, wagons and so on.
In 1885, German Gottlieb Daimler installed an engine in a frame machine, which gave birth to the world's first motorcycle. Motorcycle related sport is a kind of military sport, which is a kind of competitive sport with motorcycle as its instrument. It is divided into two-wheeled and three-wheeled models, each of which is graded according to the engine cylinder working capacity. According to the form of competition, it can be divided into cross-country race, multi-day race, road race, field race and travel race. Motorcycle races are rated by speed or driving skills.
Since Daimler invented and manufactured the world's first motorcycle powered by gasoline engine in 1885, the development of motorcycle has gone through more than 100 years of vicissitudes.
The original motorcycle, which exists in Munich Museum of Science and Technology, is the first motorcycle in the world patented by German Daimler on August 29, 1885.
Limited to more than 100 years ago, the gasoline engine is still in a low-grade and naive condition, and the vehicle manufacturing is still at the stage of horse-drawn carriage technology. The original motorcycle is quite different from the modern motorcycle in appearance, structure and performance. Looking from the wood grain, it is made by carpenters. The wheels are also made of wood. The outer layer of the wheels is covered with a layer of iron. There are several square wooden frames in the middle and lower parts of the frame, on which the engine is placed. Each side of the frame has a small supporting wheel. Its function is to prevent dumping at rest. So the car actually landed on four wheels. It use single cylinder fan cooled engine, output power through belt and gear two-stage deceleration drive, drive the rear wheel forward. The seat is saddled and covered with leather. Its engine cylinder has a working volume of 264 mL and a maximum power of 0.37 kW (700 r/min), which is only 1/5 of the modern simple motorcycle. It's 12 km an hour, not much faster than walking. Because there was no spring and other cushioning devices, the car was called a bone-shaking car.Although the original motorcycle is so crude, the motorcycle is constantly changing and improving, and only then has hundreds of millions of modern motorcycle descendants in more than 100 years.
In 1903, Harry's No. 1 market was the earliest commercial motorcycle in the United States. The cylinder of the motorcycle engine has a working volume of 409 mL and a power of 2.94 kW. The bicycle frame is used. Motorcycle is the product of the times and a model reflecting the level of science and technology at that time. That is to say, different stages of motorcycles are branded by the development of science and technology in different times. The reason why the original motorcycle could not be used was that the science and technology at that time could not meet the most basic components needed for its normal driving. So it could only be placed in the laboratory.
From the 1990s to the early 20th century, motorcycles began to have practical value because of the adoption of new inventions and technologies at that time, such as pneumatic rubber tyres, ball bearings, motorcycle bolts, clutches and transmission, front suspension shock absorber system, spring seat, etc. It is produced in batches in factories and becomes a commodity. This is the second generation motorcycle, which is called the commercial generation motorcycle. At that time, the problem of rear shock absorber was not solved. The front shock absorber had a simple ring-type shock absorber attached to the front fork.
After the 1930s, with the continuous progress of science and technology, motorcycle production has adopted rear suspension shock absorber system, mechanical ignition system, drum mechanical brake device, chain drive and so on. This brings the motorcycle to a new level. Motorcycles have gradually matured and are widely used in transportation, competition and military affairs.
The development of motorcycle is like a step by step, it is becoming more and more advanced. Motorcycle has become an advanced motor vehicle with beautiful appearance, superior performance, convenient use, flexibility and speed. It has become one of the important symbols of contemporary earth civilization. Especially, the luxury motorcycle with large displacement has transplanted the advanced automobile technology to the motorcycle, so that the motorcycle can reach the state of pure fire. The development of motorcycles has entered its heyday.
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