Some introductions to mountain bike assembly parts:
1. Flywheel: The flywheel is screwed to the right end of the rear axle by the internal thread, and is kept in the same plane as the sprocket, and is connected with the sprocket through the chain to form the driving system of the mountain bike. It can be divided into two categories: single-stage flywheel and multi-stage flywheel.
The single-stage flywheel, also known as the single-chain wheel flywheel, is mainly composed of a jacket, a flat gear and a core, a jack, a jack, a washer, a wire block and several steel balls.
The working principle of the single-stage flywheel: when the pedal is stepped forward, the chain drives the flywheel to rotate forward. At this time, the inner teeth of the flywheel and the jack phase are contained, and the rotating force of the flywheel is transmitted to the core through the jack, and the core drives the rear axle and When the rear wheel turns, the mountain bike moves forward.
When the pedal is stopped, the chain and the outer casing do not rotate, but the rear wheel still drives the core and the jack to rotate forward under the action of inertia. At this time, the inner teeth of the flywheel are relatively slid, thereby compressing the core to the core. In the slot of the child, the kilogram has compressed the jack. When the top of the tooth slides to the top of the inner tooth of the flywheel, the jack is compressed most, and then slides a little forward. The jack is springed onto the tooth root and makes a "beep" sound. The core rotates faster, and the jacks quickly slide on the inner teeth of each flywheel, giving a "squeaky" sound. When the pedal is reversely stepped, the reverse rotation of the jacket will accelerate the sliding of the jack, making the sound of the "squeaking" more rapid. The multi-stage flywheel is an important component in mountain bike shifting devices.
2. Front fork component: The front fork component is in the front part of the mountain bike structure, its upper end is connected with the handlebar component, the frame component is matched with the front pipe, and the lower end is matched with the front axle component to form a guiding system of the mountain bike.
Turning the handlebars and the front forks can change the direction of the front wheels and serve as a guide for mountain bikes. In addition, it can also play a role in controlling the driving of mountain bikes.
The force condition of the front fork component is a cantilever beam property, so the front fork component must have sufficient strength and the like.
3. Chain: Chains, also known as car chains and roller chains, are mounted on the wheel and flywheel. Its function is to transfer the pedaling force from the crank and the sprocket to the flywheel and the rear wheel to drive the mountain bike forward.
Sprocket: Made of high-strength steel to ensure it reaches the required tension.