Since the German Daimler invented and manufactured the world's first motorcycle powered by a gasoline engine in 1885, the development of motorcycles has undergone more than 100 years of vicissitudes.
The original motorcycle, the real model that exists in the Museum of Science and Technology in Munich, Germany, is the world's first motorcycle invented by German Daimler on August 29, 1885.
Limited to more than 100 years ago, when the gasoline engine was still in a low-level and naive state, the vehicle manufacturing at that time was still at the stage of horse-drawn carriage technology, and the shape, structure and performance of original motorcycles and modern motorcycles were quite different. The frame of the original motorcycle is wooden. From the perspective of 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. In the lower part of the frame are several square wooden frames on which the engine is placed. There is one on each side of the wooden frame. Small supporting wheel, its function is to prevent tipping when stationary. Therefore, the car is actually on the ground with four wheels. The single-cylinder fan-cooled engine drives the rear wheels forward through a two-stage reduction transmission of belt and gear. The saddle is shaped like a saddle with a layer of leather on the outside. Its engine cylinder has a working volume of 264mL and a maximum power of 0.37kW (700r/min), which is only 1/5 of that of a modern simple motorcycle. The speed is 12km per hour, which is not much faster than walking. Since there were no buffer devices such as springs at that time, this car was called a "bone shaking car". It is conceivable that driving on stone streets in the 19th century was harder than execution. Although the original motorcycle is so simple, but since then, motorcycles have been constantly changing and improving, and there are hundreds of millions of modern motorcycles for more than 100 years.
In contrast to German motorcycles are American motorcycles, among them the Harley Davidson Company is known worldwide. In 1903, the first market-selling model produced by the American Harry Company (the earliest commercial motorcycle in the United States), the car has an engine cylinder with a working volume of 409mL, a power of 2.94kW, and a bicycle frame. Motorcycles are a product of the times and a model that embodies the level of science and technology at that time, that is, motorcycles at different stages are a collection of the marks of technological development in different times. The original motorcycle could not be used because the science and technology at the time could not satisfy the most basic parts and components needed for its normal driving, so it could only be placed in the laboratory. From the 1890s to the beginning of the 20th century, the early motorcycles adopted new inventions and new technologies at the time, such as pneumatic rubber tires, ball bearings, clutches and transmissions, front suspension shock absorbers, and spring seats. Cars began to gain practical value and were mass-produced in factories to become commodities. This is the second-generation motorcycle, which is called the commodity-generation motorcycle. For example, in 1912, the X-8A single-cylinder motorcycle produced by the American Harley Company. At that time, the transmission and transmission system had not been solved, but the large pulley attached to the rear wheel was driven by a belt. The brake was braked by pulling the rear brake shoe by the handle. At that time, the rear shock problem was not solved, and the front shock had a ring-type simple shock absorber attached to the front fork.
After the 1930s, with the continuous advancement of science and technology, the production of motorcycles adopted rear suspension shock absorbers, mechanical ignition systems, drum-type mechanical brakes, chain transmissions, etc., which enabled motorcycles to rise to new levels. As the motorcycle gradually matures, it is widely used in transportation, competition and military. This is the third stage of motorcycles-the mature stage. In 1936, the American Harry Company was able to manufacture high-level motorcycles. The car uses a 1000mL, OHV, 27.93kW V-type twin-cylinder engine with a top speed of 150km/h.
The development of motorcycles is like layer upon layer of steps, the higher the development, the higher the level. The original motorcycle of 1885 was placed on the ground on the first floor, and the second floor was the first motorcycle produced in the world. This was a motorcycle with a two-cylinder four-stroke engine in Germany in 1894. A total of 1,000 were produced. The third layer is the popular racing motorcycle in the 1930s, when the motorcycle already has practical functions. The fourth floor is modern luxury motorcycles after the 1970s. The figure not only shows the four stages of motorcycle development, but also configures the four stages of vehicle drivers with different outfits.
After the 1970s, motorcycle production adopted electronic ignition technology, electric starter, disc brakes, streamlined body guards, etc., as well as exhaust gas purification technology in the 1990s, ABS anti-lock braking devices, etc., to make motorcycles It has become an advanced motor vehicle with beautiful appearance, superior performance, convenient use, flexibility and speed, and has become one of the important symbols of contemporary earth civilization. Especially large-displacement luxury motorcycles have transplanted the advanced technology of today's automobiles to motorcycles, making the motorcycles reach the realm of perfection. The development of motorcycles has entered the fourth stage-the heyday.