A driving mechanism for corn grain cleaning screen

Abstract

A driving mechanism of a corn grain sorting sieve belongs to agricultural machinery. A support beam is fixedly arranged on a sieve box frame, a gearbox body and a column sliding rail are separately fixedly arranged on the support beam, and a driving bevel gear and four driven bevel gears are assembled in the gearbox body. The four driven bevel gears are separately fixedly connected with four gearshafts, the four gear shafts are separately fixedly connected with four connecting rods, four driven rods are separately fixedly arranged on the four connecting rods, pushing blocks which rotate in the circumferential direction and move in the axial direction are separately arranged on the four driven rods in a sleeving manner, and four sieve surface support rods are separately fixedly arranged onthe four pushing blocks. Two sieve surface fixing plates are fixedly arranged on the sieve surface support rods, and the two sieve surface fixing plates are arranged on the column sliding rail in a sleeving manner, are located in the radial direction, can rotate in the circumferential direction and can move in the axial direction. An upper sieve and a lower sieve are separately mounted on the twosieve surface fixing plates. The mechanism is novel, reasonable, simple and compact in structure, stable in running, low in noise, reliable in use, high in sorting efficiency and high in quality.

Description

technical field [0001] The invention belongs to agricultural machinery, and mainly relates to a driving mechanism for a corn grain cleaning screen. Background technique [0002] Due to defects and problems in structural design, the existing corn grain cleaning screen can only realize the reciprocating parallel direction swing motion after the screen body is inclined. Therefore, the corn grains located on the surface of the sieve body cannot be quickly and evenly distributed on the effective area of ​​the sieve body surface during operation. Poor, in order to solve the above problems, the applicant has developed a disc rotary corn grain cleaning mechanism, but there are still technical problems such as the drive mechanism is more complicated, the volume is larger, the structure is not compact, and the operation vibration and noise are larger need to be resolved. Contents of the invention [0003] The purpose of the present invention is to solve the problems existing in th...

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Problems solved by technology

Therefore, the corn grains located on the surface of the sieve body cannot be quickly and evenly distributed on the effective area of ​​the sieve body surface during operation. Poor, in order to solve the above problems, the applicant has developed a disc rotary corn grain cleaning mechanism, but there are still technical problems such as the drive mechanism is more complicated, the volume is larger, the structure is not compact, and the operation vibration and noise are larger need to be resolved

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