| 摘要 |
<p>A point machine (100) comprises a motion rod component (110), and further comprises a planet gear mechanism (120), where the planet gear mechanism (120) comprises a large gear (122) having an outer toothed ring (1221) and an inner toothed ring (1222), a planet gear (124) is engaged with the inner toothed ring (1222), a shaft of the planet gear (124) is fixedly connected to an end of a swing arm (126), the other end of the swing arm (126) is pivotally connected to a driving shaft (128), and the driving shaft (128) is connected to the motion rod component (110). By means of a gear mechanism, a bearing capability of the point machine (100) is increased, the entire circumference of the gear mechanism is a kinematic pair, so that local wear is reduced, the service life of the point machine (100) is extended, harmful impact on the point machine (100) during start and stop is reduced, and a mature gear transmission technology is adopted to reduce a processing cost.</p> |
