Automatic counterweight mechanism with adjustable eccentricity crank

Abstract

An automatic counterweight mechanism with an adjustable eccentricity crank comprises a rotating body (1), a crank (2) and counterweights; the crank (2) is connected with the rotating body (1) through a first slide guide (3); the counterweights include a first counterweight (4) and a second counterweight (5); the first and second counterweights (4 and 5) are connected with the rotating body (1) respectively through a second slide guide (6) and a third slide guide (7); the first slide guide (3), the second slide guide (6) and the third slide guide (7) are parallel; the first and second counterweights (4 and 5) are symmetrically arranged along the crank (2); a transmission unit is arranged between the first counterweight (4) and the crank (2), and another transmission unit is arranged between the second counterweight (5) and the crank (2). Compared with the prior art, the automatic counterweight mechanism has the advantages that adjusting is achieved without stoppage, the structure is simple, weight is light, energy consumption is low, adjusting efficiency is high, adjusting precision is high and operating efficiency of equipment is high.

Description

technical field [0001] The invention relates to a counterweight mechanism, in particular to an automatic counterweight mechanism with variable eccentricity crank. Background technique [0002] At present, the counterweight mechanism of the variable eccentricity crank includes a rotating main part, a counterweight and a crank. Both the counterweight and the crank are arranged on the rotating main part. Since the crank is eccentrically arranged on the rotating main part, in order to The vibration caused by centrifugal force due to eccentricity during work requires a counterweight to keep the center of gravity of the rotating main part at the center when it is rotating. One center for smooth and balanced rotation. However, when the counterweight mechanism of the variable eccentricity crank of the prior art is in use, when adjusting the eccentricity of the crank, most of the positions of the counterweights need to be manually adjusted, and the automatic adjustment mechanism can...

AI Technical Summary

Problems solved by technology

However, when the counterweight mechanism of the variable eccentricity crank of the prior art is in use, when adjusting the eccentricity of the crank, most of the position of the counterweight needs to be manually adjusted, and the automatic adjustment mechanism cannot be used for adjustment, and the adjustment needs to be performed. It can only be carried out after shutdown, which has the problems of low adjustment efficiency and low adjustment accuracy; at the same time, the accuracy of manual adjustment is low, and the resulting centrifugal force makes the equipment only operate in a low speed range, making the operation efficiency of the equipment low. ; There are also a small part of the automatic adjustment mechanism to adjust, but the crank and the counterweight need to correspond to a respective adjustment mechanism, and they are adjusted separately. Although the adjustment efficiency is improved and the adjustment without stopping the machine, the structure is more complicated and the weight is heavier. , high energy consumption during use, and low adjustment accuracy

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