Rigid-flexible composite filtering gear

Abstract

The invention discloses a rigid-flexible composite filtering gear which comprises an outer gear ring and a hub sleeved with the outer gear ring in a clearance fit way, wherein elastic body filling holes I are annularly and uniformly distributed between the outer gear ring and the hub; high-damping elastic bodies I are arranged in the elastic body filling holes I. The invention further discloses a rigid-flexible composite filtering gear which comprises an inner gear ring and a gear seat sleevingthe inner gear ring in the clearance fit way, wherein gear teeth are arranged on the inner peripheral wall of the inner gear ring; elastic body filling holes II are annularly and uniformly distributed between the inner gear ring and the gear seat; high-damping elastic bodies II are arranged in the elastic body filling holes II. The invention further discloses a rigid-flexible composite filtering gear meshing pair which comprises two mutually-meshed gears, wherein the two gears are both outer gears, and at least one of the two gears is an outer rigid-flexible composite filtering gear; or, one gear is an outer gear, and the other gear is an inner gear; the outer gear is an outer rigid-flexible composite filtering gear and/or the inner gear is an inner rigid-flexible composite filtering gear.

Description

technical field [0001] The invention belongs to the technical field of gear transmission, and in particular relates to a rigid-flexible composite filter external gear, an internal gear and an engaging pair thereof capable of filtering out fluctuations generated in the transmission process. Background technique [0002] As the most basic part of mechanical transmission, gears have been widely used and developed in the field of mechanical transmission. With the rapid development of engineering fields such as ships, vehicles, petroleum, water conservancy, aerospace and national defense weapons, new requirements have been put forward for the precision, reliability, vibration and noise reduction of gear transmission. The backlash is an important indicator of the transmission accuracy of the reducer, and the backlash is mainly determined by the backlash of the meshing gears. Although the backlash is small, the transmission precision is high, but the gears are prone to various int...

AI Technical Summary

Problems solved by technology

Although the backlash is small, the transmission precision is high, but the gears are prone to various interferences when meshing

The impact of meshing and meshing when the gear teeth mesh, and the loss of parts during operation will increase the vibration and noise of the gear transmission mechanism during operation, and affect the life of the gear.

Especially under extreme working conditions and special environments (such as vibration, high and low temperature alternation), the volume thermal expansion of gears and the harsh external mechanical environment will cause nonlinear coupling vibration of the drive mechanism and lead to tooth profile interference, lubrication failure, and even It is the phenomenon of "stuck" or "stuck" between teeth, which affects the reliability of gear transmission

On the other hand, the motor is the source of the transmission device. The mechanical energy generated by the motor is in a state of high speed and low torque. When it is output through the reducer, it becomes a state of low speed and high torque. During this period, due to the manufacturing and assembly errors of the parts themselves, the gear meshing impact cannot be achieved. Avoid fluctuations in the transmission of torque and speed

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