The
wheel rim
is an important part of the car, also known as the rim.Generally speaking, it is the part of the axle mounted in the center of the wheel.
Automobile wheels are mainly divided into manufacturing processes, namely casting and forging.Generally speaking, the cast ring is aluminum, and the forged ring also has aluminum and titanium.However, in general, forged rings have high strength, cast rings are light in weight, automobile power loss is small, and the running speed is fast.
Another different indicator of the wheel rim is the different hole distance and eccentricity distance.The hole distance is just the position of the screw.The eccentricity distance reflects the distance of therim from the surface of the screw to the centerline of therim.A very good wheel rim requires uniform density, round shape, and good performance.
Car wheels can be updated, and some people will upgrade their wheels.For larger wheels, the outer diameter of the tire remains the same, and the flatness of the tire becomes larger.The lateral swing of the car is smaller and the stability is improved.However, the car has lost its comfort.The wheels currently used are made of aluminum alloy material, which has a beautiful appearance, but they are also very exquisite. In order to maintain the beauty of the wheels, in addition to paying special attention to preventing accidental damage to the wheels during driving, regular maintenance of the wheels is also required.
The
wheel
is made into a circle and the characteristics of the circle are closely related, and the distance from the center of the circle to any point on the circle is equal.The wheel is circular. The axle is pressed on the center of the circle, and the wheel rolls on the ground. The distance between the axle and the ground is always the radius of the wheel. As long as the road is relatively flat, the vehicle will be more stable. .
The circle has a faster rolling force, and it is relatively stable to roll. If the wheel is round, the contact area with the ground will be greatly reduced, and it will be easier and faster to roll.If the wheel is square or triangular, the distance from the center of the wheel to the ground is constantly changing, and the vehicle cannot maintain stable driving on the ground.
In more science and technology museums, it can be seen that bicycles with square wheels on specially-made tracks pass by very smoothly without obvious bumps.As for why such wheels can also be square and so stable, this is because the track has been specially designed. This track is uneven, which just makes up for the inconsistency in the height between the center of the square wheel and the ground, so it will not be bumpy when driving.
