Fan-shaped gear backlash adjusting structure

Abstract

The invention discloses a fan-shaped gear backlash adjusting structure. The fan-shaped gear backlash adjusting structure is characterized in that at least one pair of arc-shaped through grooves are formed in the end face of a fan-shaped gear; the arc-shaped through grooves and a reference circle of the fan-shaped gear are concentric and unequal in diameter; one end of each arc-shaped through groove penetrates through the side edge of the fan-shaped gear; at least one pair of arc-shaped through grooves penetrate through the two side edges of the fan-shaped gear in the opposite directions; and the ends, located in the fan-shaped gear, of the arc-shaped through grooves penetrating through the two side edges of the fan-shaped gear are arranged in a staggered mode and extend towards one side, penetrating through the fan-shaped gear, of the arc-shaped through grooves to pass through the center line of the fan-shaped gear but not penetrate through the fan-shaped gear. The arc-shaped through grooves are formed in the end face of the fan-shaped gear, so that the fan-shaped gear can achieve micro elastic deformation in the meshing process; the effect equivalent to a spring is achieved; filling glue is poured into the arc-shaped through grooves, a round through hole and a damping hole to increase damping of the gear; the purposes of automatically adjusting the gear pair backlash, reducingvibration and absorbing energy are achieved; Stable transmission of a light and small servo mechanism is realized; the structure is simple; and the method is suitable for a light-load small servo system.

Description

technical field [0001] The invention belongs to the field of servo system gear transmission, and relates to a gear pair backlash adjustment structure, in particular to a sector gear backlash adjustment structure. Background technique [0002] The backlash of a gear pair refers to the gap between the non-working tooth surfaces when a pair of gears mesh. Appropriate backlash can compensate for the extrusion of the gear teeth due to force deformation and frictional heat expansion, which is conducive to the formation of a lubricating oil film, reduces the friction between the gear teeth, plays a lubricating role, reduces the damage to the gear teeth, and improves The service life of the gear can also compensate for the assembly error and prevent the jamming phenomenon during the transmission process. However, in the servo system that needs to transmit high-precision angle information or position information, the backlash of the tooth will cause the transmission dead zone. If th...

AI Technical Summary

Problems solved by technology

[0004] The structure of the existing gear pair backlash adjustment method is complex, which is not conducive to the design of light and small precision servo transmission systems. At the same time, the precise servo transmission system will appear stuck in high and low temperature environments, and long-term work will cause wear and tear, resulting in gear pair backlash Insufficiency such as increase, the present invention provides a new gear pair backlash adjustment structure

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