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目前的锥齿轮传动机构中,换向装置一般都采用摩擦式或爪式离合器,或齿轮轴向移动等方法。摩擦离合器接合平稳,具有缓冲安全作用,但其结构复杂,外形尺寸较大,摩擦面之间有相对滑动,不易保证传动的稳定;爪式离合器结构较简单,制造较容易,但当速度差较大时,离合器不易接合,冲击较大,齿端容易损坏;齿轮轴向移动方法则由于滑动齿轮位置不准确时影响啮合的正确性,且工作时轴向分力有使传动机构分离的倾向而应用不广。为此,我厂最近在7G4D船用挂机产品设计中,使
The current bevel gear drive, the commutator generally use friction or claw clutch, or gear and other methods of axial movement. The friction clutch is smooth and has the function of cushioning safety. However, the structure of the friction clutch is complex, the outer dimensions are large, and there is relative sliding between the friction surfaces, which is not easy to ensure the stability of the transmission. The claw clutch structure is simpler and the manufacturing is easier. Large, the clutch is not easy to engage, the impact of larger, easy to damage the tooth ends; gear axial movement method is due to inaccurate sliding gear when the impact of the correctness of engagement, and the work of axial force components have the tendency to separate the transmission mechanism Not widely used. To this end, I recently plant in the 7G4D Marine Hanging product design, so