Introduce The Advantages And Characteristics Of Transmission Gears

传动齿轮 是指通过齿轮副传递运动和动力的装置。它是各种现代设备中应用最广泛的机械传动方式。具有传动相对准确、效率高、结构紧凑、运行可靠、使用寿命长等特点。

在各种传动形式中，传动齿轮是现代机械中应用最广泛的一种。这是因为齿轮传动具有以下特点：

1) High transmission precision. As mentioned earlier, the belt drive cannot guarantee an accurate transmission ratio, and the chain drive cannot achieve a constant instantaneous transmission ratio, but the transmission ratio of the involute gears commonly used in modern times is theoretically accurate and constant. This is not only a key requirement for precision machinery and instruments, but also an important condition for reducing dynamic load and achieving smooth transmission under high-speed and heavy-load conditions.

2) Wide application range. The power range transmitted by the gear drive is extremely wide, from 0.001W to 60000kW; the peripheral speed can be very low, or as high as 150m/s, which is incomparable with the belt drive and the chain drive.

3) It can realize the transmission between any two axes in the space of parallel axis, intersecting axis, staggered axis, etc., which is also impossible for belt drive and chain drive.

4) Reliable work and long service life.

5) The transmission efficiency is high, generally 0.94 to 0.99.

6) The manufacturing and installation requirements are higher, so the cost is also higher.

7) The requirements for environmental conditions are strict. Except for a few low-speed and low-precision cases, it is generally necessary to place it in the box cover to prevent dust and scale, and it is also necessary to pay attention to lubrication.

8) It is not suitable for transmission between two shafts that are far apart.

9) Vibration reduction and impact resistance are not as good as flexible transmission such as belt transmission.

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