Automobile gear with lubrication and heat dissipation functions

The utility model discloses an automobile gear with lubrication and heat dissipation functions, and relates to the technical field of gears. The gear comprises a gear body, a lantern ring is arranged on the gear body in a sleeved mode, an open hole and two clamping grooves are formed in the lantern ring, and two threaded rods are movably matched with the outer side wall of the lantern ring. And the first arc-shaped plate is located in the open hole, the two ends of the first arc-shaped plate are in elastic and sliding fit with second arc-shaped plates, and one end of each second arc-shaped plate is matched with the corresponding clamping groove. Through the arrangement of the first arc-shaped plate, the situation that impurities fall into the lantern ring is reduced, the situation that the impurities are not removed in time, and the heat dissipation effect of a lubricant is reduced when the gear body is used is reduced, through the arrangement of the clamping grooves, the second arc-shaped plate slides in and