Transmission mechanism with intermittent output action

Abstract

The invention discloses a transmission mechanism with an intermittent output action, which comprises a conjugate cam group, an output shaft, two rocker arm blocks, a transmission connecting rod group and an input shaft, wherein the conjugate cam group comprises two cams; the output shaft is pivoted in the center of the base circle of the two cams and is provided with a sun gear; the two rocker arm blocks are provided with a planetary gear respectively; the two planetary gears are engaged with the sun gear; one rocker arm block is pivoted with two rollers; the two rollers are contacted with the two cams respectively; the transmission connecting rod group is arranged between the two rocker arm blocks to make the two rocker arm blocks actuated synchronously; the input shaft and the output shaft are positioned on the same common axis; and the input shaft is used for driving the two rocker arm blocks to rotate through a planet carrier. Therefore, the stress of the sun gear is uniformly dispersed on the engaged sides of the two planetary gears, so that the dynamic balance of a device can be achieved and the mechanism can be applied to high-speed occasions.

Description

【Technical field】 [0001] The present invention relates to a transmission mechanism with intermittent output action, in particular to a transmission mechanism that converts input continuous motion into stop-moving-stop-moving intermittent characteristic output. 【Background technique】 [0002] China Taiwan Announcement No. I272351 Invention Patent Case discloses a "movement-adjustable reciprocating mechanism", which includes a power device with a motor as a power source, a power input mechanism, a variable speed mechanism, and a power output mechanism. The power input mechanism is composed of a driving wheel and a driven wheel. The variable speed mechanism is provided with a circulation groove in a closed loop on a base, the circulation groove can allow a roller to slide, and the base is pierced with an input shaft, and one end of the input shaft is The power input mechanism can be driven by the power device, and the other end of the input shaft is connected to a planetary ar...

AI Technical Summary

Problems solved by technology

However, the processing cost of the recirculating groove is relatively high, and the heat treatment after processing is not easy, and the roller is only pivoted on the roller arm on one side, which can be equivalent to a cantilever beam. When running at high speed, it is easy to produce Deflection and deformation, resulting in abnormal wear of the recirculating grooves and rollers

Furthermore, the planetary arm and roller arm of the existing structure are single-arm linkages, which are prone to rocking force and shaking moment due to the unbalanced weight of the planetary arm and roller arm, so the dynamic characteristics of the above-mentioned system Poor and difficult to achieve dynamic balance, so that it cannot run stably at high input speed

Images