Bevel gear and transmission mechanism with bevel gear

Abstract

The invention discloses a bevel gear and a transmission mechanism with the bevel gear. The bevel gear comprises a gear ring, a web plate and a gear shaft, wherein the gear ring is provided with a plurality of gear teeth; the gear shaft penetrates through the web plate and is connected to the web plate; a reinforcing part is arranged on one side surface of the web plate and is provided with a planeA and a plane B, wherein the plane A is perpendicular to the axis of the gear shaft and equally divides the web plate, and the plane B is perpendicular to the axis of the gear shaft and equally divides the gear teeth; the plane A is offset upwards by a set distance in the axial direction of the gear shaft relative to the plane B; and the plane A and the reinforcing part are located on the same side of the plane B. The transmission mechanism comprises at least one bevel gear, and the offset direction of the plane A of each bevel gear relative to the corresponding plane B is consistent with thedirection of the axial force applied to the corresponding bevel gear. The bevel gear and the transmission mechanism with the bevel gear have the advantages of being light in weight, good in uniform loading performance, simple and compact in structure, easy to process and manufacture and the like.

Description

Technical field [0001] The present invention relates to the technical field of transmission parts, in particular to a helical gear and a transmission mechanism with the helical gear. Background technique [0002] Helical cylindrical gears are widely used in the aerospace field due to their advantages of high coincidence and strong carrying capacity. However, due to the lightweight and high-strength requirements of aviation equipment, the webs of traditional aviation helical gears are designed as thin plate structures with two sides perpendicular to the gear shaft. The webs of the thin plate structure are located in the middle of the tooth width (that is, perpendicular to The gear shaft and the plane bisecting the web coincides with the plane perpendicular to the gear shaft and bisecting each gear tooth), and the web is provided with multiple lightening holes to reduce the mass of the helical gear, so the web flexibility of the helical gear is greatly increased. Due to the struct...

AI Technical Summary

Problems solved by technology

Due to the structural characteristics of the helical gear itself, axial force will inevitably be generated during the meshing process, resulting in a large bending deformation of the web of the helical gear under the action of axial force and torque, and serious unbalanced load phenomenon. , cannot guarantee the required meshing stiffness requirements, resulting in a decline in the performance of the helical gear, and even causing the failure or even destruction of the entire aviation equipment

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