Speed ​​ratio adjustable double eccentric wheel rocker reducer

Abstract

The invention discloses a double-eccentric-gear rocker arm speed reducer with an adjustable speed ratio. A locating plate (4) is arranged on an input shaft (2). A first eccentric gear (5) is arranged on one side of the locating plate (4). A second eccentric gear (6) is arranged on the other side of the locating plate (4). The first eccentric gear (5) and the second eccentric gear (6) are distributed symmetrically at 180 degrees relative to the input shaft (2). The first eccentric gear (5) is located in a shifting fork at one end of a first rocker arm (9). The other end of the first rocker arm (9) is connected with an output shaft (3) through a first isolator (10). The second eccentric gear (6) is located in a shifting fork at one end of a second rocker arm (11). The other end of the second rocker arm (11) is connected with the output shaft (3) through a second isolator (10). The double-eccentric-gear rocker arm speed reducer with the adjustable speed ratio is simple and compact in structure, small in size, easy to assemble and capable of achieving variable speed adjustment on the premise of not adding any fittings; variable speed adjustment is easy, convenient and fast to operate, the speed ratio adjustment range is large, and therefore the speed reducer can meet the requirements of different occasions.

Description

technical field [0001] The invention belongs to the technical field of reducers, and in particular relates to a double eccentric rocker reducer with adjustable speed ratio. Background technique [0002] The reducer is an independent closed transmission device between the prime mover and the working machine. It is used to reduce the speed and increase the torque to meet the work needs. It is widely used in modern machinery. Existing reducers generally have disadvantages such as high noise, large volume, large wear, difficult maintenance, difficult manufacturing, high production cost, and low transmission efficiency, and the adjustment of the speed ratio is inconvenient, and the gears need to be replaced in pairs , on the one hand, the operation is cumbersome, time-consuming and labor-intensive; on the other hand, many pairs of gears need to be equipped, which increases the production cost accordingly; at the same time, the speed ratio adjustment range of the traditional gear ...

AI Technical Summary

Problems solved by technology

[0004] 1) The processing of the crankshaft is difficult, the assembly of the entire reduction gear is difficult, and the production cost is relatively high;

[0005] 2) The movement of the rocker arm must be realized with the help of linear bearings, which will also increase the cost of the entire reduction device;

[0006] 3) The speed ratio adjustment can be realized by changing the length of the rocker arm or the eccentricity of the crank throw. The adjustment method needs to replace parts of different specifications. Not only is the operation more cumbersome, the speed ratio adjustment range is small, but also many parts need to be equipped. high production cost

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