CN108114885B

CN108114885B - Rotary shaking type grain cleaning device

Info

Publication number: CN108114885B
Application number: CN201711399020.0A
Authority: CN
Inventors: 王立军; 冯鑫; 郑招辉; 崔友强; 李义博
Original assignee: Northeast Agricultural University
Current assignee: Northeast Agricultural University
Priority date: 2017-12-22
Filing date: 2017-12-22
Publication date: 2020-11-03
Anticipated expiration: 2037-12-22
Also published as: CN108114885A

Abstract

A rotary shaking type grain cleaning device belongs to agricultural machinery; the device comprises a shell, a driving shaft, a grain feeding conveyer belt and an impurity removing fan, wherein the driving shaft, the grain feeding conveyer belt and the impurity removing fan are arranged at the outer side part of the shell, an impurity discharging air channel and a seed bin are respectively arranged at the upper part and the lower part in a cavity of the shell, an inner rotating shaft is assembled at the central part in the cavity of the shell, a rotary shaking, throwing and vibrating sieve plate mechanism consisting of an outer rotating sleeve, a V-shaped sieve frame, a pull rod, a sieve plate, a connecting plate, a pressure spring, a throwing tension spring, a crank, a connecting rod, a rocker and a throwing cam is assembled outside the inner rotating shaft, and an impurity throwing air channel blocking mechanism consisting of an arc-shaped partition plate, a limiting cam, a tension spring and; the device has novel and unique design, strong anti-blocking capability of the sieve plate, good effect, high operating efficiency, good cleaning quality and reliable use.

Description

Rotary shaking type grain cleaning device

Technical Field

The invention belongs to agricultural machinery, and mainly relates to a rotary shaking type grain cleaning device.

Background

The straight reciprocating vibrating grain sorting sieve is the most common grain sorting mechanism used at present, and the grain sorting mechanism with the structure is very easy to have the phenomenon of sieve hole blockage in the grain sorting operation process, so that the technical problems of low grain sorting operation efficiency and poor sorting quality are caused, and the use requirement of the current grain sorting operation cannot be met and adapted.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a rotary shaking type grain cleaning device, so that the aims of avoiding the phenomenon of sieve mesh blockage during grain cleaning operation, improving the cleaning operation efficiency and ensuring the cleaning operation quality are fulfilled.

The invention aims to realize the following purposes that an impurity throwing air channel and a seed bin are respectively arranged at the upper part and the bottom part in a shell cavity, an air inlet and an impurity discharging port are respectively arranged at the two end parts of the impurity throwing air channel, an impurity cleaning fan is arranged at the air inlet, a limiting roller, a positioning plate and a cam seat plate are respectively arranged at the position on the outer side part of the shell and below the impurity discharging port from top to bottom, a partition cam is rotatably assembled on the cam seat plate, an arc-shaped partition plate can be inserted on the positioning plate in an up-and-down moving way, the arc-shaped partition plate is in contact fit with the limiting roller, an upper seat plate is arranged on the arc-shaped partition plate, a tension spring is assembled at the position between the upper seat plate and the positioning plate, and the lower end part of; a driving roller and a supporting roller are rotatably arranged outside the shell in sequence, a grain feeding conveyer belt is sleeved on the driving roller and the supporting roller, a cylindrical gear is fixedly arranged on the driving roller, a driving shaft is arranged below the driving roller, a sector gear is fixedly arranged on the driving shaft, the sector gear is meshed with or separated from the cylindrical gear, an inner rotating shaft is rotatably arranged at the central part in the cavity of the shell, a first driving belt connects the driving shaft with the inner rotating shaft, and a second driving belt connects the driving roller with a partition cam; a sun gear is fixedly mounted on the inner rotating shaft, gear shafts are arranged on the outer side of the inner rotating shaft in parallel, a planetary gear is rotatably mounted on the gear shafts, an outer rotating sleeve is sleeved on the outer portion of the inner rotating shaft, an inner gear ring is fixedly mounted on the inner wall surface of the outer rotating sleeve, and the planetary gear is respectively meshed with the sun gear and the inner gear ring; the utility model discloses a corn cleaning device, including outer rotating sleeve, V type bank of screens, link board, connecting rod and rocker, the outer wall of outer rotating sleeve is gone up and is adorned a N V type bank of screens admittedly along the circumferencial direction equipartition, but link board circumference wobbling hinge is installed on V type bank of screens, and pressure spring joins in marriage the dress is in V type bank of screens and link between the board on the position, interior axis of rotation loops through crank, connecting rod and rocker and link board hinge link board on the board circumference wobbling installation sieve, the pull rod is adorned admittedly on the sieve, the cam contact cooperation is sent with the throwing to the interior tip of pull rod, and the both ends of throwing sending the pressure spring cooperate with pull rod and V type bank of screens extrusion contact respectively, constitute rotatory shake formula grain cleaning device up.

The invention is created in carrying on the grain cleaning operation course, finish cleaning separation with the miscellaneous residue through the shaking of the sieve plate, the whole rotation of the sieve plate throws the function and throws the miscellaneous residual to discharge through throwing the miscellaneous wind channel with the cooperation of impurity-removing blower, utilize and throw and send the pressure spring to make the sieve plate produce the vibration in the reset action of the circumferential direction, avoid sieve mesh on the sieve plate to block up the phenomenon to happen, have novel in construction, unique, prevent that the ability of blocking up is strong, effectual, the operating efficiency is high, clean the characteristic with good quality, use reliable.

Drawings

FIG. 1 is a three-dimensional schematic diagram of the general structure of a rotary shaking type grain cleaning device;

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

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a rear view of FIG. 4;

FIG. 6 is a schematic view of the transmission structure of the inner rotating shaft and the outer rotating sleeve;

fig. 7 is a three-dimensional schematic view of fig. 4.

Description of part numbers in the figures:

1. the grain impurity removing device comprises a shell, 2, an inner rotating shaft, 3, a first transmission belt, 4, a driving shaft, 5, a sector gear, 6, a cylindrical gear, 7, a grain feeding conveying belt, 8, a second transmission belt, 9, an impurity removing fan, 10, a driving roller, 11, a supporting roller, 12, a V-shaped sieve frame, 13, an air inlet, 14, an impurity removing air channel, 15, an impurity removing port, 16, a limiting roller, 17, an arc-shaped partition plate, 18, an upper seat plate, 19, a tension spring, 20, a positioning plate, 21, a partition plate cam, 22, a cam seat plate, 23, an outer rotating sleeve, 24, a seed bin, 25, a throwing compression spring, 26, a pull rod, 27, a sieve plate, 28, a connecting plate, 29, a pressure spring, 30, a rocker, 31, a connecting rod, 32, a crank, 33, a throwing cam, 34, a sun gear, 35, an inner gear ring gear, 36, a.

Detailed Description

The following detailed description of the inventive embodiments is provided in connection with the accompanying drawings. A rotary shaking type grain cleaning device is characterized in that an impurity throwing air duct 14 and a grain bin 24 are respectively arranged at the upper part and the bottom part in a cavity of a shell 1, an air inlet 13 and an impurity discharging port 15 are respectively arranged at the two end parts of the impurity throwing air duct 14, an impurity cleaning fan 9 is arranged at the air inlet 13, a limiting roller 16, a positioning plate 20 and a cam seat plate 22 are respectively arranged at the position on the outer side part of the shell 1 and below the impurity discharging port 15 from top to bottom, a partition plate cam 21 is rotatably arranged on the cam seat plate 22, an arc-shaped partition plate 17 can be inserted on the positioning plate 20 in an up-and-down moving mode, the arc-shaped partition plate 17 is in contact fit with the limiting roller 16, an upper seat plate 18 is arranged on the arc-shaped partition plate 17, a tension spring 19 is arranged at the position between the upper seat plate 18 and the positioning plate 20; a driving roller 10 and a supporting roller 11 are rotatably arranged outside the shell 1 in sequence, a grain feeding conveyer belt 7 is sleeved on the driving roller 10 and the supporting roller 11, a cylindrical gear 6 is fixedly arranged on the driving roller 10, a driving shaft 4 is arranged below the driving roller 10, a sector gear 5 is fixedly arranged on the driving shaft 4, the sector gear 5 is meshed with or separated from the cylindrical gear 6, an inner rotating shaft 2 is rotatably arranged at the central part in the cavity of the shell 1, the driving shaft 4 is connected with the inner rotating shaft 2 through a first driving belt 3, and the driving roller 10 is connected with a partition plate cam 21 through a second driving belt 8; a sun gear 34 is fixedly mounted on the inner rotating shaft 2, gear shafts 36 are arranged on the outer side part of the inner rotating shaft 2 in parallel, planetary gears 37 are rotatably mounted on the gear shafts 36, an outer rotating sleeve 23 is sleeved on the outer part of the inner rotating shaft 2, an inner gear ring 35 is fixedly mounted on the inner wall surface of the outer rotating sleeve 23, and the planetary gears 37 are respectively meshed with the sun gear 34 and the inner gear ring 35; n V-shaped sieve frames 12 are uniformly and fixedly arranged on the outer wall surface of the outer rotating sleeve 23 along the circumferential direction, a connecting plate 28 is hinged to the V-shaped sieve frames 12 in a circumferential swinging mode, a pressure spring 29 is assembled between the V-shaped sieve frames 12 and the connecting plate 28, the inner rotating shaft 2 is hinged to the connecting plate 28 sequentially through a crank 32, a connecting rod 31 and a rocker 30, a sieve plate 27 is arranged on the connecting plate 28 in a circumferential swinging mode, a pull rod 26 is fixedly arranged on the sieve plate 27, a throwing cam 33 is fixedly arranged on the inner rotating shaft 2, the inner end portion of the pull rod 26 is in contact fit with the throwing cam 33, and two ends of the throwing pressure spring 25 are in extrusion contact fit with the pull rod 26 and the V-shaped sieve frames 12 respectively.

During operation, the driving shaft 4 rotates, the inner rotating shaft 2 is driven to rotate by the first driving belt 3, the driving roller 10 drives the grain feeding conveyer belt 7 to intermittently rotate to feed grains into the shell 1 by the matching of the sector gear 5 and the cylindrical gear 6, the second driving belt 8 transmits the rotation of the intermittently rotating driving roller 10 to the partition cam 21 to intermittently rotate, the arc partition 17 is pushed to block the impurity throwing air duct 14 in the shell 1, the rotating inner rotating shaft 2 drives the connecting plate 28, the sieve plate 27, the pressure spring 29 and the throwing pressure spring 25 to integrally rotate by the sun gear 34, the planetary gear 37, the inner gear ring 35, the outer rotating sleeve 23 and the V-shaped sieve frame 12, the grains and the impurities intermittently fed by the grain feeding conveyer belt 7 fall on the corresponding sieve plate 27, the rotating inner rotating shaft 2 passes through the crank 32, the connecting rod 31 and the rocker 30 and is controlled by the pressure spring 29, the sieve plate 27 is driven by the connecting plate 28 to realize continuous shaking in the circumferential direction, the cleaning and separation of grains and impurities are completed, and the grains fall into the seed bin 24 from sieve holes of the sieve plate 27; when the corresponding sieve plate 27 rotates to the position near the air inlet 13 of the impurity throwing air duct 14, under the control of the rotating throwing cam 33 and the throwing pressure spring 25, throwing motion in the resetting process of the sieve plate 27 is realized through the pull rod 26, impurities are sent into the impurity throwing air duct 14, synchronously, the arc-shaped partition plate 17 is pushed into the cavity of the shell 1 by the partition plate cam 21 to separate the impurity throwing air duct 14, the impurities are discharged out of the shell 1 through the impurity discharging port 15 from the impurity throwing air duct 14 by the impurity cleaning fan 9, and after one-time impurity throwing is finished, the arc-shaped partition plate 17 is pulled out of the shell 1 under the action of the pulling force of the tension spring 19. So far, under the coordination of the grain feeding conveyer belt 7 for intermittent feeding and the sieve plate 27 rotating correspondingly, the shaking, cleaning, separating, throwing and throwing the impurity and the vibrating anti-blocking operation process of the sieve plate 27 are completed circularly.

Claims

1. The utility model provides a rotatory shake formula grain cleaning plant, does not set up in casing (1) intracavity upper portion and bottom and throws miscellaneous wind channel (14) and seed grain storehouse (24), and air intake (13) and row's miscellaneous mouthful (15) set up respectively throw on the both ends of miscellaneous wind channel (14) air intake (13) department configuration is clear miscellaneous fan (9), its characterized in that: the outer side of the shell (1) and the position below the impurity discharging port (15) side are respectively provided with a limiting roller (16), a positioning plate (20) and a cam seat plate (22) from top to bottom, a partition cam (21) is rotatably assembled on the cam seat plate (22), an arc-shaped partition plate (17) can be inserted on the positioning plate (20) in a vertically moving mode, the arc-shaped partition plate (17) is in contact fit with the limiting roller (16), an upper seat plate (18) is installed on the arc-shaped partition plate (17), a tension spring (19) is assembled between the upper seat plate (18) and the positioning plate (20), and the lower end of the arc-shaped partition plate (17) is in contact fit with the partition cam (21); a driving roller (10) and a supporting roller (11) are rotatably arranged outside the shell (1) in sequence, a grain feeding conveyer belt (7) is sleeved on the driving roller (10) and the supporting roller (11), a cylindrical gear (6) is fixedly arranged on the driving roller (10), a driving shaft (4) is arranged below the driving roller (10), a sector gear (5) is fixedly arranged on the driving shaft (4), the sector gear (5) is meshed with or separated from the cylindrical gear (6), an inner rotating shaft (2) is rotatably arranged at the central part in the cavity of the shell (1), a first transmission belt (3) connects the driving shaft (4) with the inner rotating shaft (2), and a second transmission belt (8) connects the driving roller (10) with a partition plate cam (21); a sun gear (34) is fixedly mounted on the inner rotating shaft (2), gear shafts (36) are arranged on the outer side of the inner rotating shaft (2) in parallel, a planetary gear (37) is rotatably mounted on the gear shafts (36), an outer rotating sleeve (23) is sleeved on the outer portion of the inner rotating shaft (2), an inner gear ring (35) is fixedly mounted on the inner wall surface of the outer rotating sleeve (23), and the planetary gear (37) is respectively meshed with the sun gear (34) and the inner gear ring (35); n V-shaped sieve frames (12) are uniformly and fixedly arranged on the outer wall surface of the outer rotating sleeve (23) along the circumferential direction, a connecting plate (28) is hinged to the V-shaped sieve frames (12) in a circumferential swinging mode, a pressure spring (29) is assembled between the V-shaped sieve frames (12) and the connecting plate (28), an inner rotating shaft (2) is hinged to the connecting plate (28) sequentially through a crank (32), a connecting rod (31) and a rocker (30), a sieve plate (27) is arranged on the connecting plate (28) in a circumferential swinging mode, a pull rod (26) is fixedly arranged on the sieve plate (27), a throwing cam (33) is fixedly arranged on the inner rotating shaft (2), the inner end of the pull rod (26) is in contact fit with the throwing cam (33), and two ends of a throwing pressure spring (25) are respectively in extrusion contact fit with the pull rod (26) and the V-shaped sieve frames (12).