Reduction gearbox gear

Abstract

The invention discloses a reduction gearbox gear. The reduction gearbox gear comprises a hub, a large tooth ring is arranged at the left end of the hub, and a bottom plate is arranged on the inner side of the large tooth ring. A small tooth ring is further arranged at the right end of the hub, and the inner side of the small tooth ring is directly and integrally connected with the right end of the hub. Each of teeth of the large tooth ring and the small tooth ring comprises tooth side faces and a tooth top face, and multiple tiny pits are formed in the tooth top faces and the tooth side faces randomly. The tooth side faces are divided into left tooth side faces and right tooth side faces. Upper ends of the left and right tooth side faces are connected with the left end and the right end of the corresponding tooth top face respectively to form tooth outer surfaces together. The left and right tooth side faces are each divided into an upper face portion and a lower face portion. The upper face portions of the left and right tooth side faces are cut by a plane perpendicular to a hub central axle, and curves obtained by the cutting are all involutes. The lower face portions of the left and right tooth side faces are cut by the plane perpendicular to the hub central axle, and curves obtained by the cutting are all elliptic arcs. The upper face portions and the lower face portions of the left and right tooth side faces are in smooth connection, and the lower face portions of the tooth side faces of every two adjacent teeth are in smooth connection in the position of a tooth root point.

Description

technical field [0001] The invention relates to gears, in particular to a reduction box gear. Background technique [0002] The reducer is a power transmission mechanism, a mechanism that uses the speed conversion ratio of the gear to reduce the number of revolutions of the motor or internal combustion engine to the desired number of revolutions and obtain a larger torque. The reducer is usually a box structure, so it is also called a reduction box. There are usually multiple gears in the box of the reduction box. It is the difference in the angular velocity of the two gears when the gears with different numbers of teeth mesh with each other, so as to realize the adjustment of the number of revolutions. . [0003] The tooth surface of the existing reduction box gear is smooth, and it is difficult to retain the lubricating oil supplied by splashing, so there are problems such as insufficient lubrication, easy wear and gluing on the tooth surface. [0004] On the other hand,...

AI Technical Summary

Problems solved by technology

[0003] The tooth surface of the existing reduction box gear is smooth, and it is difficult to retain the lubricating oil supplied by splashing, so there are problems such as insufficient lubrication, wear and gluing on the tooth surface

[0004] On the other hand, the existing involute toothed gears have the problem of insufficient dedendum strength

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