Drum-type inner ring plate speed reducer with less tooth difference

Abstract

The invention discloses a drum-type ring gear plate speed reducer with less tooth difference which comprises a circular speed reducer shell with an inner gear and an input shaft; the rear part of the input shaft is provided with an input gear; the input gear is meshed with four driven gears which are uniformly arranged at the circumference; a first ring gear plate, a second ring gear plate, a third ring gear plate, a fourth ring gear plate are provided with an eccentric shaft in sequence along the axis, the first ring gear plate and the third ring gear plate are the first group, the second ring gear plate and the fourth ring gear plate are the second group, the first group ring gear plate is equipped with the first eccentric shaft at the same time, and the second group ring gear plate is equipped with the second eccentric shaft at the same time; the annular plate phase angle on the two eccentric shafts in each group is 180 degrees in symmetrical distribution. A first pull rod shaft, a second pull rod shaft, a third pull rod shaft and a fourth pull rod shaft are simultaneously equipped through the first ring gear plate, the second ring gear plate, the third ring gear plate and the fourth ring gear plate, and the pull rod shafts equipped through the ring gear plates by the corresponding pull rod shaft holes; the four pull rod shafts are in uniform arrangement, and the phase angle is 90 degrees. According to the speed reducer, four outer gear annular plates rotate from the inner gear of multi-phase multi-tooth meshed speed reducer shell; the structure is compact, and the transmission ratio is large; and the speed reducer is suitable for the environment of great speed ratio, low-speed weight loading and high transmission accuracy requirement.

Description

technical field [0001] The invention relates to a reducer in the field of mechanical power transmission, in particular to a drum-type reducer with few tooth differences on an inner ring plate. [0002] Background technique [0003] At present, in the working environment with high torque transmission, compact structure, and small installation space, Japanese patented RV reducers and various multi-stage planetary hard tooth surface reducers are mostly used. Their superior performance is used in metallurgy, mining, and industrial robots. It has been widely used in various low-speed and heavy-duty situations such as transportation machinery, etc., but these two types of reducers have also found some shortcomings in the process of production and use, because their commonality is to increase the hardness of the tooth surface to enhance the bearing capacity of the reducer capacity, the heat treatment requirements of parts are high, and high part precision must be ensured, result...

AI Technical Summary

Problems solved by technology

[0010] The patent of this invention is aimed at the above-mentioned shortcomings of the existing involute linear reducer with small tooth difference, that is, the separation of the rotating body and the box, the large volume of the reducer, and the installation size is too large Large size and restricted use environment, combined with the advantages of the RV reducer to provide a drum type inner ring plate less tooth difference reducer

Images