Compact gear structure for eliminating lateral clearance and design method thereof

Abstract

The invention provides a compact gear structure for eliminating a lateral clearance and a design method thereof. The compact gear structure for eliminating the lateral clearance comprises a fixed gear, a floating gear and a C-shaped spring, wherein the fixed gear comprises a center hole provided with a key groove, and a gear shaft extends into the center hole and is connected with the fixed gear through a key; the floating gear is rotationally mounted in a central hole hub of the fixed gear in a clearance fit manner; three threaded holes are formed in the tooth face of the fixed gear along the circumference, three annular long-strip-shaped holes are formed in the tooth face of the floating gear along the circumference, and the fixed gear and the floating gear are axially fixed through stepped screws mounted in the threaded holes and the annular long-strip-shaped holes; the C-shaped spring is fixedly mounted between the fixed gear and the floating gear through a pin shaft. According to the compact gear structure for eliminating the lateral clearance and the design method thereof, the problems that the gear backlash affects the transmission precision, and a backlash eliminating gear is not compact enough in structure when an existing gear rotates reversely are solved.

Description

technical field [0001] The invention relates to the technical field of precision transmission, in particular to a compact gear structure for eliminating lateral backlash and a design method thereof. Background technique [0002] Existing gears or anti-backlash gears usually have the following problems: [0003] 1. When the gear rotates in reverse, the backlash of the tooth side affects the transmission accuracy. Theoretically, there is no side clearance in gear meshing, but due to dimensional errors caused by changes in manufacturing, installation, and temperature, there is a backlash between the non-working surfaces of the gears. The main factor affecting the transmission accuracy of the forward and reverse gears is the gear backlash. Gear backlash is mainly affected by factors such as gear temperature rise, gear shaft misalignment, one-way deviation of gear teeth such as tooth shape, tooth direction and tooth pitch, radial runout and elastic deformation of bearings, etc. ...

AI Technical Summary

Problems solved by technology

[0007] According to the above-mentioned technical problems such as the fact that the backlash of the existing gears affects the transmission accuracy when the gears rotate in reverse and the structure of the anti-backlash gear is not compact enough, a compact gear structure and its design method for eliminating the backlash are provided.

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