Eccentric wheel rotation mechanism

Abstract

The invention discloses an eccentric wheel rotation mechanism. The eccentric wheel rotation mechanism comprises eccentric wheel shafts. The eccentric wheel shafts are arranged and mounted separately and fastened to a mounting plate through fasteners. The number of eccentric wheels is equal to that of the eccentric wheel shafts. The eccentric wheels are assembled with the eccentric wheel shafts in one-to-one correspondence and are connected and engaged through a synchronous belt to form eccentric wheel mechanisms. The number of the eccentric wheels is at least two, the eccentric directions of the eccentric wheel shafts on the eccentric wheels are consistent, and the eccentric wheels are equal to each other in size. Herringbone teeth, splayed teeth, helical teeth or center line teeth are adopted as teeth of the synchronous belt and teeth of the eccentric wheels, and the eccentric wheels are in a cylinder shape. The number of the eccentric wheels is four, two of the eccentric wheels are arranged as a set and form one eccentric wheel mechanism, and the eccentric directions of the eccentric wheel shafts of each set are consistent. According to the technical scheme, the eccentric wheel belt driving problem can be solved, and normal operation can be achieved under the condition that the perimeters of the eccentric wheel sets are unchanged, so that the positive driving noise is reduced, and the eccentric wheel rotation mechanism is especially suitable for being used in the circumstance that driving mechanical equipment is sensitive to vibration and noise caused by driving.

Description

technical field [0001] The invention relates to an eccentric wheel rotation mechanism, which is suitable for rotary and reciprocating motion, and is especially suitable for use in occasions where rotating mechanical equipment is relatively sensitive to vibration and noise caused by transmission. Background technique [0002] In the past, the rotary reciprocating motion was mostly realized by cam mechanism and crank mechanism, but this kind of mechanism is in rigid contact, and the large acceleration change will cause a large impact. In the belt transmission mechanism, most of them are concentric shafts or concentric wheels. In parallel belts, V-belts or synchronous belt toothed belts, there is no change in the distance between the round wheel and the axis, and there is no eccentric belt transmission. Abnormal changes in the perimeter of the outer profile, and once the normal transmission under the condition of equal perimeter of the eccentric wheel group belt is to be realiz...

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Problems solved by technology

[0002] In the past, the rotary reciprocating motion was mostly realized by cam mechanism and crank mechanism, but this kind of mechanism is in rigid contact, and the large acceleration change will cause a large impact. The manufacture of the crank linkage mechanism requires high-precision special equipment to process and manufacture. In the belt transmission mechanism, most of them are concentric shafts or concentric wheels. In the parallel belt, V-belt or synchronous belt toothed belt, there is no change in the distance between the round wheel and the axis, and there is no eccentric belt transmission. Abnormal changes in the circumference of the outer profile, and once the normal transmission under the condition of equal circumference of the eccentric wheel belt type is realized, it will no longer conform to the changing law of the eccentric wheel, and it is difficult to realize

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