Gear and rack transmission mechanism suitable for circular motion

Abstract

The invention relates to a rack and pinion transmission mechanism suitable for circular motion, which comprises a circumferential rack arrangement assembly and a drive gear assembly; the circumferential rack arrangement assembly is fixed on an arc-shaped base frame; the drive gear The component is sleeved on the drive shaft and mated with the circumferential rack arrangement component; the circumferential rack arrangement component includes a rack; the drive gear component includes a drive external gear and a drive internal gear; the rack It is linear and realizes the circumferential arrangement in a straight-forward manner; the drive gear assembly as a whole can rotate around the drive shaft; the tooth structures of the drive external gear and the drive internal gear are both drum-shaped teeth. The invention forms sector teeth through standard racks, drives the external gears to mesh with them, and then realizes circular motion, solves the problem that non-sector teeth and bevel gears cannot perform circular motion in gear-rack transmission, and realizes standard tooth Bar-gear circular drive.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission, in particular to a rack and pinion transmission mechanism suitable for circular motion. Background technique [0002] In the existing peripheral drive gear-rack system, the rack is usually made into sector teeth and the gear is made into bevel gears, but this structure is not suitable for transmission systems with large circumference radius. The gear-rack transmission system with non-segment teeth and bevel teeth can only transmit linear motion, but cannot transmit circular motion. Contents of the invention [0003] Aiming at the problem that the above-mentioned existing gear-rack transmission with non-sector teeth and conical teeth can only do linear motion and cannot perform circular transmission, the present invention proposes a rack and pinion transmission mechanism suitable for circular motion. In the way of straight instead of curved, the standard racks are used to form s...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that the above-mentioned existing gear-rack transmission with non-sector teeth and conical teeth can only do linear motion and cannot perform circular transmission, the present invention proposes a rack and pinion transmission mechanism suitable for circular motion. In the way of straight instead of curved, the standard racks are used to form sector teeth, and the spherical inner ring and spherical outer ring are designed inside the drive external gear to form a spherical rotating device to mesh the teeth, thereby realizing circular motion, and solving the problem of non-sector teeth. , The gear-rack transmission of bevel gears cannot do circular motion, and the standard rack-gear circular drive has been realized.

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