Internal tricyclic decelerator

Abstract

The invention discloses an inner three-ring reducer, which includes a bearing frame, an output shaft, an input gear shaft, two side gear ring plates, a middle gear ring plate, an inner gear ring, three eccentric crankshafts and other components, and three eccentric crankshafts They are parallel to each other, and synchronous planetary gears are respectively installed on them, and they are arranged in an equilateral triangle. The two side gear ring plates and the middle gear ring plate realize transmission with less tooth difference during the meshing process with the inner gear ring, and the phase difference It is always 180°, and the mass of the two side gear ring plates is set to half of the mass of the middle gear ring plate; the bearing frame and the output shaft are connected to form a rigid frame structure, and the discs at both ends of the frame support three eccentric crankshafts , the positions of the input gear shaft and the output shaft are on the same axis, and the input gear shaft meshes with three synchronous planetary gears. The invention has the advantages of high reliability, large transmission ratio, stable movement, strong bearing capacity and reasonable layout, and is especially suitable for use under working conditions requiring high power and high torque.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission, in particular to the technical field of reducers. Background technique [0002] In the modern industrial field, reducer equipment has been widely used. The three-ring reducer in the prior art has the characteristics of strong bearing capacity, large anti-overload capacity, high reliability in continuous production, large transmission ratio, high efficiency, long service life, convenient maintenance, and high cost performance, and is widely used in metallurgy, mining, A series of products have been formed for lifting transportation, construction, petrochemical, textile printing and dyeing and other industries. [0003] In many fields, the three-ring reducer replaces the hard tooth surface planetary reducer, cycloidal pin gear reducer, cylindrical gear reducer and worm gear reducer. The three-ring reducer in the prior art consists of three identical inner toothed ring plates arran...

AI Technical Summary

Problems solved by technology

However, this kind of crank type reducer with small tooth difference has problems such as poor rigidity of the combined frame, small load capacity, poor reliability of the crank structure, unbalanced additional torque caused by centrifugal force, and low service life of the ring plate bearing.

Some other circular translation crank type reducers with small tooth difference in the prior art adopt the technical scheme of combining the planetary small tooth difference gear mechanism and the cycloidal pin wheel, but the disadvantage of adopting this technical scheme is that the cycloidal pin There is sliding friction in the wheel transmission, so the efficiency of the reducer is low, and the shaft is easy to cut

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