CN107470125B

CN107470125B - Disc rotation type corn kernel impurity removing mechanism

Info

Publication number: CN107470125B
Application number: CN201710717961.8A
Authority: CN
Inventors: 王立军; 冯鑫; 武振超; 李�瑞; 吴宝鑫
Original assignee: Northeast Agricultural University
Current assignee: Northeast Agricultural University
Priority date: 2017-08-21
Filing date: 2017-08-21
Publication date: 2020-04-24
Anticipated expiration: 2037-08-21
Also published as: CN107470125A

Abstract

A disc rotary corn kernel impurity removing mechanism belongs to agricultural machinery; the double-layer screen frame is hinged on the trapezoid driving rocker frame assembly, an upper screen with an upper adjusting screen and a lower screen with a lower adjusting screen are respectively and rotatably assembled on the upper inner side part and the lower inner side part of the double-layer screen frame, a feeding port of a feeding flat pipe is positioned at the eccentric part of the upper adjusting screen, a rotary driving rod is fixedly installed on the lower screen, a spring frame internally provided with an upper limiting pressure spring and a lower limiting pressure spring is fixedly assembled at the outer side part of the double-layer screen frame, one end of a driving limiting rod is arranged at the position between the upper limiting pressure spring and the lower limiting pressure spring, the lower end of the rotary driving rod is in insertion fit with the other end of the driving limiting rod, and the driving connecting rod fixedly connects; the invention has novel, reasonable and simple structural design, compact overall structure, high impurity cleaning operation efficiency, good operation quality, reliable use and strong applicability.

Description

Disc rotation type corn kernel impurity removing mechanism

Technical Field

The invention belongs to agricultural machinery, and mainly relates to a corn kernel impurity removing mechanism.

Background

Because the defect in the aspect of structural design, the inclined reciprocating swing motion of screen frame can only be carried out to the clear miscellaneous shale shaker of maize seed grain that uses now, and this kind of structure can not realize the maize seed grain of being cleaned quick equipartition on the screen frame surface, not only can not make full use of screen frame surface effective area, and the operating efficiency is low, and clear miscellaneous effect and quality are relatively poor moreover.

Disclosure of Invention

Aiming at the problems in the prior art, the invention develops a disc rotary corn kernel impurity removing mechanism, and achieves the purposes of improving the operating efficiency and impurity removing quality of the mechanism.

The invention aims to realize the purpose that a double-layer screen frame is hinged on the upper side part of a fixedly-arranged trapezoid driving rocker frame assembly, an upper screen and a lower screen are respectively rotatably assembled in the upper side part and the lower side part of the double-layer screen frame, an upper adjusting screen is coaxially and circumferentially rotatably installed on the upper screen, a lower adjusting screen is coaxially and circumferentially rotatably installed on the lower screen, a feeding port of a feeding flat pipe is positioned at the eccentric part of the upper adjusting screen, a rotary driving rod is fixedly installed at the central part of the lower end of the lower screen, a spring frame is fixedly arranged at the outer side part of the double-layer screen frame, an upper limiting pressure spring and a lower limiting pressure spring are correspondingly assembled in the spring frame, one end of a driving limiting rod can vertically swing and horizontally rotate and is arranged at the position between the upper limiting pressure spring and the lower limiting pressure spring, the lower end of the rotary driving rod and the other end of the driving limiting rod are axially arranged, The upper end and the lower end of the driving connecting rod are respectively and fixedly connected on the upper sieve and the lower sieve, so that the disc rotary corn kernel impurity removing mechanism is formed.

The technical scheme of the invention has the advantages that the upper sieve and the lower sieve complete the reciprocating compound motion of the upper sieve, the lower sieve, the left sieve and the right sieve, and simultaneously generate the rotating motion in the circumferential direction, and are matched with the eccentric feeding of the flat feeding pipe, so that the corn kernels fed on the upper regulating sieve surface and the lower regulating sieve surface can be quickly and uniformly distributed on the sieve surface during operation.

Drawings

FIG. 1 is a schematic view of the overall structure of a disc rotary corn kernel impurity removing mechanism;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a bottom view of FIG. 1;

fig. 4 is a three-dimensional schematic diagram of the overall structure of the disc rotary corn kernel impurity removing mechanism.

Description of part numbers in the figures:

1. the device comprises a trapezoid driving rocker frame assembly, 2, a double-layer screen frame, 3, a feeding flat pipe, 4, an upper adjusting screen, 5, an upper screen, 6, a lower adjusting screen, 7, a lower screen, 8, a spring frame, 9, an upper limiting pressure spring, 10, a lower limiting pressure spring, 11, a driving limiting rod, 12, a rotary driving rod, 13 and a driving connecting rod.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. A disc rotary corn kernel impurity removing mechanism is characterized in that a double-layer screen frame 2 is hinged on the upper side part of a fixedly arranged trapezoid driving rocker frame assembly 1, an upper screen 5 and a lower screen 7 are respectively rotatably assembled in the upper side part and the lower side part of the double-layer screen frame 2, an upper adjusting screen 4 is coaxially and circumferentially rotatably installed on the upper screen 5, a lower adjusting screen 6 is coaxially and circumferentially rotatably installed on the lower screen 7, a feeding port of a feeding flat pipe 3 is positioned at the eccentric position of the upper adjusting screen 4, a rotary driving rod 12 is fixedly installed at the central position of the lower end of the lower screen 7, a spring frame 8 is fixedly arranged at the outer side part of the double-layer screen frame 2, an upper limiting pressure spring 9 and a lower limiting pressure spring 10 are correspondingly assembled in the spring frame 8, one end of a driving limiting rod 11 can vertically swing and horizontally rotate and is arranged at the position between the upper limiting pressure spring 9 and the lower limiting pressure spring 10, the lower end of the rotary driving rod 12 and the other end of the driving limiting rod 11 are in axial, radial positioning and circumferential rotatable splicing fit, and the upper end and the lower end of the driving connecting rod 13 are fixedly connected to the upper sieve 5 and the lower sieve 7 respectively.

During operation, the active-moving trapezoid driving rocker assembly 1 drives the double-layer screen frame 2 and drives the upper and lower adjusting screens 4 and 6, the upper and

lower screens

5 and 7, the rotary driving rod 12 and the driving connecting rod 13 to synchronously perform up-down and left-right compound motion, under the control of the driving limiting rod 11 and the upper and lower pressing springs 9 and 10, the rotary driving rod 12 pushes the lower screen 7 and the lower adjusting screen 6 to rotate in the double-layer screen frame 2, synchronously, the upper screen 5 and the upper adjusting screen 4 are driven to rotate together in the double-layer screen frame 2 through the driving connecting rod 13, the corn grains and the impurities which fall to the lower adjusting screen 6 and the lower screen 7 after primary impurity removal are eccentrically fed into the upper adjusting screen 4 and the upper screen 5 through the feeding flat pipe 3 and are separated again through impurity removal, the corn grains fall from holes of the lower screen 7, and the impurities are discharged from the upper side part and the lower side part of the double-layer screen frame 2 twice. According to the size of corn grains, the upper and lower adjusting sieves 4 and 6 can be respectively adjusted by circumferential rotation on the upper and

lower sieves

5 and 7, and the overlapping position of the sieve pores of the upper adjusting sieve 4 and the sieve pores of the upper sieve 5 and the overlapping position of the sieve pores of the lower adjusting sieve 6 and the sieve pores of the lower sieve 7 are changed, so that the impurity removing operation requirements of the corn grains with different sizes are met and adapted, and the operation effect is ensured.

Claims

1. The utility model provides a clear miscellaneous mechanism of disc rotation type maize seed grain which characterized in that: the double-layer screen frame (2) is hinged and installed on the upper side part of a fixedly-configured trapezoid driving rocker frame assembly (1), an upper screen (5) and a lower screen (7) are rotatably installed inside the upper side and the lower side of the double-layer screen frame (2) respectively, an upper adjusting screen (4) is coaxially and circumferentially rotatably installed on the upper screen (5), a lower adjusting screen (6) is coaxially and circumferentially rotatably installed on the lower screen (7), a feeding port of a feeding flat pipe (3) is located at the eccentric position of the upper adjusting screen (4), a rotary driving rod (12) is fixedly installed on the central position of the lower end of the lower screen (7), a spring frame (8) is fixedly configured at the outer side part of the double-layer screen frame (2), an upper limiting pressure spring (9) and a lower limiting pressure spring (10) are correspondingly installed in the spring frame (8), one end of a driving limiting rod (11) can vertically swing, The horizontal rotation is arranged between the upper limiting pressure spring (9) and the lower limiting pressure spring (10), the lower end of the rotary driving rod (12) is in axial, radial positioning and circumferential rotatable splicing fit with the other end of the driving limiting rod (11), and the upper end and the lower end of the driving connecting rod (13) are fixedly connected to the upper screen (5) and the lower screen (7) respectively.