Efficient corn cob crushing device

Abstract

The invention relates to a corn cob crushing device, and belongs to the technical field of agricultural machinery. The corn cob crushing device comprises a front-extending left hinge plate, a front-extending right hinge plate, a rear-extending left hinge plate and a rear-extending right hinge plate, wherein the front-extending left hinge plate, the front-extending right hinge plate, the rear-extending left hinge plate and the rear-extending right hinge plate are hinged to a rack in a supported mode, the hinged positions of the front-extending left hinge plate and the rear-extending right hinge plate are fixedly connected with corresponding synchronous meshing gears respectively, and the cantilever ends of the front-extending left hinge plate, the front-extending right hinge plate, the rear-extending left hinge plate and the rear-extending right hinge plate are connected with corresponding tension springs; each hinge plate supports a saddle-shaped roller of which a driving shaft is driven through a universal joint, so that a front saddle-shaped roller floating clamping conveying mechanism and a rear saddle-shaped roller floating clamping conveying mechanism which are paired left and right are formed; and a splitting cone with the rotating axis aligned with the conveying center line is mounted at the output end of each floating clamping conveying mechanism, and cone threads are formed on the bodies of the splitting cones. According to the corn cob crushing device, efficient cob crushing can be achieved, corn kernels are effectively prevented from being damaged, and ideal conditions are created for guaranteeing the corn threshing quality and reducing threshing damage.

Description

technical field [0001] The invention relates to a corn threshing pretreatment device, in particular to a corn cob breaking device, which belongs to the technical field of agricultural machinery. Background technique [0002] At present, threshing and direct harvesting of high-humidity corn grains has become the development trend of corn mechanized harvesting, and the key link of direct grain harvesting is threshing. The threshing device is the core component to realize direct grain harvesting. It has an important influence on the operating performance such as efficiency and cleaning rate. Due to the mutual support between the kernels on the corn ear, it is difficult for the corn kernels to be detached from the mandrel, and as the moisture content of the corn ear increases, the corn kernels are fuller, and the mutual extrusion and support are more severe. It leads to more difficult threshing, greater damage and lower removal rate. [0003] It can be seen from the search tha...

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Problems solved by technology

[0004] After analysis, it was found that the causes of the damage were as follows: 1) The clamping mechanism only relied on the elastic deformation of the elastic roller to adapt to corn ears of different diameters, and the difference in diameter of different parts on the same ear, the clamping mechanism could not provide stability for the corn ear. The continuous clamping force will damage the corn kernels, and it is difficult to ensure the stability of the corn cobs; 2) The cob drill combined with the circular drill and the central twist drill is difficult to adapt to the corn cobs of different sizes, which will damage the corn Grain; 3) The clamping mechanism and the positioning mechanism are two separate mechanisms. The length of corn ears ranges from more than ten centimeters to more than thirty centimeters. For shorter corn ears, it is impossible to guarantee simultaneous clamping and positioning, so there is no guarantee Core stabilization and conveying

The positioning mechanism composed of three spring expanders, the three springs do not have a mutual coordination mechanism, rely too much on the consistency of the elastic coefficients of the springs, the positioning accuracy cannot be guaranteed, and with the increase in the number of stretches, the positioning error will increase after the spring fatigue Continue to increase

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