Connecting structure of multiple eccentric shafts and synchronous driving device thereof

Abstract

The invention discloses a connecting structure of multiple eccentric shafts and a synchronous driving device thereof. The connecting structure mainly comprises a synchronous reverse output gear shaft, a second output shaft gear sleeve and a middle eccentric shaft, wherein the synchronous reverse output gear shaft is arranged in a gear box of the synchronous driving device; the middle eccentric shaft is arranged in a left exciter shell; straight tooth splines are arranged in inner holes of the synchronous reverse output gear shaft and the middle eccentric shaft; the left end meshed segment and the right end meshed segment of the second output shaft gear sleeve are provided with drum-shaped teeth; the normal tooth profiles of the drum-shaped teeth are the same as those of the straight tooth splines in the inner holes of the synchronous reverse output gear shaft and the middle eccentric shaft; the synchronous reverse output gear shaft and the middle eccentric shaft are connected with each other through a drum-shaped tooth meshing pair.

Description

technical field [0001] The invention relates to a connection structure between multiple eccentric shafts and their synchronous driving devices, in particular to a connection structure between multiple eccentric shafts and their synchronous driving devices of an exciter of a vibratory road roller, and belongs to the field of road construction machinery. Background technique [0002] Among the existing vibratory rollers, the exciter of the circular vibratory roller is one or two or more than two eccentric shafts arranged in series and then driven by a vibrating motor installed on the same axis to rotate synchronously and in the same direction. The eccentric shafts are usually connected by spline pairs; Patent No. 2005100658746 (CN1673457A) discloses a new type of synchronous reverse drive device with multiple eccentric shafts connected in series for the vibrating wheel of a directional vibratory roller. The first rotating shaft I, the second transmission shaft II, and the ...

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Problems solved by technology

[0002] Among the existing vibratory rollers, the exciter of the circular vibratory roller is one or two or more than two eccentric shafts arranged in series and then driven by a vibrating motor installed on the same axis to rotate synchronously and in the same direction. The eccentric shafts are usually connected by spline pairs; Patent No. 2005100658746 (CN1673457A) discloses a new type of synchronous reverse drive device with multiple eccentric shafts connected in series for the vibrating wheel of a directional vibratory roller. The first rotating shaft I, the second transmission shaft II, and the third transmission shaft III in the reverse drive device are all spline shafts or spline sleeves, and the connection structure between the synchronous reverse drive device and the multiple eccentric shafts driven by it It is also connected by spline pairs, teeth or teeth and other meshing pairs. This is actually a simple rigid coupling. In practical applications, due to the "nutation" of multiple eccentric shafts, coupled with the vibration motor or synchronous drive The coaxiality error between the multiple eccentric shafts makes this structure must use a spline pair with a large gap during manufacture, so the service life of this structure is short and the reliability is low. In addition, due to the vibration theory in use Creep elongation such that face teeth or face teeth engagement cannot be applied

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