Helical ball reducer

Abstract

The invention relates to a spiral ball reducer, which belongs to the field of reducers. The base is fixed on the ground or a fixture, the input shaft assembly is installed on the input shaft groove of the base, and the output shaft assembly is installed on the output shaft core of the base; the input shaft assembly and the output shaft assembly rely on the outer edge of the base and the The outer edge of the output shaft assembly is radially limited, relying on the contact between the deep groove ball bearing and the inner surface of the outer edge of the output shaft assembly to reduce friction, the balls in the input shaft assembly mesh with the spiral slideway in the output shaft assembly to achieve universal pure rolling In the transmission mode, the limit connecting component connects the base and the output shaft component for axial limit, and the movable limit ring can rotate relative to the bracket. The advantages are: the meshing transmission of the ball and the spiral slideway is adopted, the universal pure rolling transmission mode of the ball greatly reduces the friction with the spiral slideway, and the movable limit ring that can rotate relative to the bracket further reduces the friction, that is, reduces the Abrasion and heat generation improve the service life; no hysteresis and high precision.

Description

technical field [0001] The invention relates to the field of reducers, in particular to a helical ball reducer based on a helical slideway and balls. It is suitable for industrial robot joints, balance cars and other fields. Background technique [0002] Reducers are widely used in the machinery industry, mainly gears and worm gears. Small size, small weight and high precision are the goals pursued by the industry. However, these commonly used reducer transmission methods are all through gear meshing transmission. In the process of gear transmission, backlash is inevitable, resulting in accuracy errors; frictional heat generation between gears and tooth root fractures and other failure forms also affect the deceleration. An important factor in the life of the gear reducer; the industrial gear reducer is large in size and weight, so it is difficult to apply in many small volumes and small spaces, and needs to be improved urgently. Contents of the invention [0003] The o...

AI Technical Summary

Problems solved by technology

However, these commonly used reducer transmission methods are all through gear meshing transmission. In the process of gear transmission, backlash is inevitable, resulting in accuracy errors; frictional heat generation between gears and tooth root fractures and other failure forms also affect the deceleration. An important factor in the life of the gear reducer; industrial gear reducers are large in size and weight, so it is difficult to apply in many small volumes and small spaces, and urgently needs to be improved

Images