Rotation and reciprocating swing conversion device

Abstract

The invention discloses a rotation and reciprocating swing conversion device. The rotation and reciprocating swing conversion device comprises a lower box body, an input shaft, a middle shaft, an output shaft, a supporting mechanism, a crank and rocker mechanism and a bevel gear transmission mechanism, wherein the middle shaft and the output shaft are rotatably arranged on the lower box body, the supporting mechanism is arranged on the lower box body and used for supporting the input shaft, the crank and rocker mechanism is located in an inner cavity of the lower box body, and the bevel gear transmission mechanism is connected with the input shaft and the middle shaft; and the crank and rocker mechanism comprises a crank, a connecting rod rotationally connected with the crank and a rocker rotationally connected with the connecting rod and connected with the output shaft, the crank is fixedly connected with the end of the middle shaft, and the connecting rod and the middle shaft are located at the two opposite sides of the crank correspondingly. According to the rotation and reciprocating swing conversion device, the length of the middle shaft is shortened, and the crank is arranged at the tail end of the middle shaft, so that a motion plane of the crank and rocker mechanism is located in the inner cavity of the box body and located at one side of the extension line of the middle shaft, and therefore motion interference between the connecting rod and the middle shaft is effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of mechanical engineering, in particular, the invention relates to a rotation and reciprocating swing conversion device. Background technique [0002] In mechanical engineering practice, in many occasions it is necessary to convert continuous rotation into reciprocating swing. For example, the gearbox of a tractor can output continuous rotation. Conversion device; another example is that the crushing executive head of the crusher is reciprocating swing, while its power source motor is continuous rotation, and a rotation and reciprocating swing conversion device can also be configured. [0003] The existing rotation and reciprocating swing conversion device has the following defects: [0004] (1) During assembly, it is difficult to ensure the correct meshing position of the bevel gear through debugging; [0005] (2) For the interference of moving components between the connecting rod and the crank of the cr...

AI Technical Summary

Problems solved by technology

[0004] (1) During assembly, it is difficult to ensure the correct meshing position of the bevel gear through debugging;

[0005] (2) For the interference of moving components between the connecting rod and the crank of the crank-rocker mechanism, the crank is usually designed as a crankshaft, which increases the complexity of manufacturing, assembly and maintenance;

[0006] (3) The configuration of the swing angle of the swing motion output and the rod length of the crank-rocker mechanism has long relied on experience and lacks a quantitative design basis

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