What are the names of bicycle wheel parts?

As a part of the carriage, the ancient car was called Yu. The railings and wooden boards standing on the left and right sides of Yu are called Yu, and the driving part of the car mainly includes wheels and axles. At the center of the wheel is a log with a hole, called a hub, which is used to pass through the shaft. The frame of the wheel is called the rim [w m 4 ng net]. Connecting the rim and the hub are spokes. A wheel has more or less spokes, usually 30. Lao Tzu said, "30 spokes, * * * a hub". The spokes around are concentrated on the hub, which is called convergence. The axle is a cross beam, and both ends carry the car and wheels. Both ends of the shaft are exposed outside the hub, and the end of the shaft is covered with a bronze or iron shaft head, which is called "WYEI". There is a hole on the axle head to accept the "jurisdiction" to prevent the wheel from falling off. The jurisdiction is generally made of bronze or iron, flat and rectangular, about three or four inches long, commonly known as pins. The axle is across the platform. The fixing method is to install two pieces of wood at the bottom of the platform and tie the axle to it with a rope. It looks like a crawling rabbit, so it is called a lying rabbit. Also called FuFuFu.

The structure and composition of the vehicle include not only the parts related to the carrying and running parts mentioned above, but also the driving parts. The components of the driving part are mainly shaft and yoke. An iron shaft, also known as a boat, is a straight wood or a slightly bent wooden stick. The rear end of the shaft is connected with the axle, and the front end is tied with a curved crossbar, which is called yoke, also called balance or cross. The shaft passes through a device called. The name of the car is Yi [Yuè]. Yokes should be put around the necks of cows and horses. In addition, there is a kind of "Rè n blade", which is a kind of wood that prevents the wheels from turning. When driving, the wood must be removed before the car can turn. So starting is also called starting. In the future, "hair" will be used to refer to the beginning of things. There can be a cover on ancient vehicles, supported by a wooden stick, which looks like a big umbrella. The cover is special for cars, and the floor mat can be laid in the middle. The car mat is called yin, and later it also refers to the general mat. It is said that in ancient times, there were often curtains around women's cars. Later, the car cover was cancelled and a gyro (similar to the modern hood) was added to the curtain, which was called curtain, also called door curtain [xi m: n]. In addition, ancient chariots and horses often had many decorative accessories, such as bells mounted on the weight and yoke, which were called "weights". In the Western Zhou Dynasty, the most advanced carriage also had to be loaded with eight rafts, which made it sound good to walk. Many parts of ancient cars were beautifully made, such as some copper rims, and even inlaid with gold and silver wires into exquisite patterns, which were extremely gorgeous.