Different in nature
1. Helical gear transmission: a common part often used in mechanical transmission, the gear is made of high-quality high-strength alloy steel.
2. Spur gear transmission: a classification method of gears.
Different advantages
1. Advantages of helical gear transmission:
(1) Good meshing performance: The meshing process between helical cylindrical gear teeth is an excessive process, and the force on the tooth surface gradually increases from small to large, and then from large to small; helical cylindrical gears are suitable for High-speed, heavy-duty occasions.
(2) High coincidence degree: The increase of coincidence degree improves the load-carrying capacity of the gear. Thereby prolonging the service life of the gear. The degree of contact is mainly determined by the meshing time, and the helical gear with long meshing time and large contact area reduces the stress. Stable power transmission and economic growth.
(3) Compact structure: The smaller the minimum number of teeth, the more compact the structure.
2. Advantages of spur gear transmission: strong bearing capacity and durability.
Application of helical gears in automobiles:
Gears are one of the most common components in trucks, and are mostly used in important components such as gearboxes, engines, and rear axles. Gears are rich in functions, can transmit power in any direction, and can also change the speed and torque instantly. It can be said that without gears, there would be no modern automobile civilization.
In the automotive field, helical gears are widely used in mechanical components such as engines and gearboxes. The main effect is to increase meshing and make transmission more stable.
In terms of mechanical characteristics, the working method between spur gears is an infinite cycle of sudden loading and sudden exit, or they are not engaged, and once engaged, the maximum torque will be released.
However, due to the inclination of the teeth of the helical gear, the meshing process of each tooth adopts a progressive contact. The contact area spreads from the point to the surface, and the meshing torque also increases from small to large, and then from large to small.
In terms of user experience, helical gears can reduce the impact of shifting gears, making the vehicle run more smoothly, with less obvious frustration and lower noise.
It is no exaggeration to say that the extensive application of helical gears is an important move in the history of automobile development. It represents that automobile research and development has begun to expand towards the comfort level of users, rather than simply pursuing the mechanical level of vehicles.
