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Transmission gear is the key component inside the gearbox, its main role is to achieve the engagement of different gear ratios, so as to change the transmission ratio and adjust the torque and speed of the engine output. The following is a detailed introduction to the transmission gear:

Function and role of transmission gear:

1. Speed change: Through different gear combinations, the transmission gear can provide different transmission ratios to meet the needs of the vehicle under various driving conditions, such as climbing, high-speed driving, etc.

2. Deceleration: When driving at low speed or climbing, the transmission gear can provide a large transmission ratio, so that the engine output torque is increased, but the speed is reduced.

3. Growth rate: At high speeds, the transmission gear can provide a smaller transmission ratio, so that the engine output torque is reduced, but the speed is increased.

Transmission gear structure type:

1. Slip gear: The meshing of different gears is achieved by moving gears, which is a common stepwise transmission mode.

2. Synchronizer: Through the synchronizer to achieve the synchromesh of different gears, so that the shift is more smooth.

3. Planetary gear group: a structure commonly used in automatic transmissions, which can achieve continuous stepless transmission.

In summary, the transmission gear is the core part of the transmission, and the optimization of its design, material and manufacturing process is crucial to improve the performance and reliability of the transmission. As technology continues to evolve, transmission gears continue to innovate to meet the needs of higher efficiency and better performance.