CN218302342U

CN218302342U - Screening device for corn harvester

Info

Publication number: CN218302342U
Application number: CN202222890671.2U
Authority: CN
Inventors: 杨发刚
Original assignee: Qingdao Huiao Machinery Co ltd
Current assignee: Qingdao Huiao Machinery Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-01-17
Anticipated expiration: 2032-10-31

Abstract

The utility model relates to the technical field of corn harvesting, in particular to a screening device for a corn harvester, which comprises a machine body, wherein a screening chamber is fixedly connected to the top end of the machine body; the top end of the screening chamber is fixedly connected with a material conveying chamber; the top end of the conveying chamber is fixedly connected with a separation box; a conveying device is arranged on one side of the top end of the machine body, which is far away from the screening chamber; a screen is fixedly connected in the screening chamber; a motor is fixedly connected to the rear side inside the screening chamber; the front end of the rotating shaft is fixedly connected with a rotating plate; a round block is fixedly connected to one end of the front side of the rotating plate, which is far away from the rotating shaft; the outer side of the round block is sleeved with a driven sleeve; the top end of the driven sleeve is fixedly connected with a mandril; the utility model discloses before corn threshing, the output through the motor drives the pivot and rotates, and the pivot drives driven cover through the disk and reciprocates, and driven cover drives the ejector pin and shakes the screen cloth to make maize and stone and grains of sand separate, break away from for follow-up maize and provide convenience, the practicality is higher.

Description

Screening device for corn harvester

Technical Field

The utility model relates to a maize reaps technical field, specifically is a sieving mechanism for maize reaper.

Background

After the corn is mature, the corn needs to be picked, the corn is picked manually in the traditional mode, however, with the rapid development of science and technology, the corn harvester is invented, the corn harvester can help people to pick the corn quickly, and the burden of people is greatly reduced.

Patent retrieval shows that the publication number is CN209882596U, and the screen cloth of the device can rotate under the drive of the motor, can screen out the corns entering the screening drum, can thoroughly separate impurities from the corns, and has good screening effect.

However, in actual use, after the corn harvester harvests, if the corn harvester directly threshes, a large amount of stones and sand grains can be contained in the corn kernels, the stones, the sand grains and the corn kernels are mixed together, a large amount of time and energy are consumed for subsequently screening the corn kernels, and the practicability is low, so that the screening device for the corn harvester is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

To the current problem, an object of the utility model is to provide a sieving mechanism for corn harvester to solve the problem that provides in the above-mentioned background art.

In order to solve the above problem, the utility model adopts the following technical scheme:

a screening device for a corn harvester comprises a machine body, wherein a screening chamber is fixedly connected to the top end of the machine body; the top end of the front side of the screening chamber is hinged with a sealing door; the top end of the screening chamber is fixedly connected with a material conveying chamber; the top end of the conveying chamber is fixedly connected with a separation box; a conveying device is arranged on one side of the top end of the machine body, which is far away from the screening chamber, and the other end of the conveying device extends into the separation box; a screening mechanism is arranged in the screening chamber; the bottom of the screening chamber is provided with a trash discharging mechanism;

the screening mechanism comprises a screen, a motor, a rotating shaft, a rotating plate, a round block, a driven sleeve, an ejector rod, a limiting plate and a sliding chute; a screen is fixedly connected in the screening chamber; a motor is fixedly connected to the rear side inside the screening chamber; the output end of the motor is fixedly connected with a rotating shaft; the front end of the rotating shaft is fixedly connected with a rotating plate; a round block is fixedly connected to one end of the front side of the rotating plate, which is far away from the rotating shaft; the outer side of the round block is sleeved with a driven sleeve; the top end of the driven sleeve is fixedly connected with a mandril; the two sides of the interior of the screening chamber are both provided with sliding chutes; the equal rigid coupling in both sides of ejector pin has the limiting plate, and the other end of limiting plate all extends to in the spout.

As the utility model discloses further scheme again: the impurity removing mechanism comprises an impurity removing port, a first sealing block, a spring, a second sealing block and a bottom rod; the top end of the machine body and the bottom end of the screening chamber are jointly provided with a trash discharging port, and the cross section of the trash discharging port is T-shaped; the bottom end of the impurity discharging port is provided with a first sealing block; a group of springs are fixedly connected around the top end of the first sealing block, and the top ends of the springs are fixedly connected with the impurity discharging port; the top end of the first sealing block is fixedly connected with a second sealing block; and the bottom end of the driven sleeve is fixedly connected with a bottom rod.

As a further aspect of the present invention: a straight plate is fixedly connected to the top end of the ejector rod; and a group of transmission rods is fixedly connected to the top end of the straight plate.

As a further aspect of the present invention: and a flow guide cone is fixedly connected to the top end of the second sealing block.

As the utility model discloses further scheme again: and a flow guide seat is fixedly connected with the bottom end inside the screening chamber.

Compared with the prior art, the beneficial effects of the utility model are that:

1. before corn threshing, the utility model drives the rotating shaft to rotate through the output end of the motor, the rotating shaft drives the driven sleeve to move up and down through the round block, and the driven sleeve drives the ejector rod to shake the screen, so that the corn is separated from stones and sand grains, convenience is provided for subsequent corn separation, and the practicability is higher;

2. the utility model discloses a sill bar interval nature to sealed piece down-extrusion No. two for a sealed piece moves down with sealed piece No. two, arranges miscellaneous mouthful and is opened, can discharge screening indoor portion's stone and sand grain automatically.

Drawings

FIG. 1 is a perspective view of a screening device for a corn harvester;

FIG. 2 is a sectional perspective view of a screening device for a corn harvester;

FIG. 3 is an enlarged view of a portion of the screening apparatus of FIG. 2;

FIG. 4 is an enlarged view of a portion of the screening apparatus of FIG. 2 of a corn harvester at B;

fig. 5 is a partially enlarged view of the screening device for corn harvesters at the position C in fig. 2.

In the figure: 1. a body; 2. a screening chamber; 21. a sealing door; 3. a material conveying chamber; 4. a separation tank; 5. a conveying device; 6. a screening mechanism; 61. a screen mesh; 62. a motor; 63. a rotating shaft; 64. rotating the plate; 65. a round block; 66. a driven sleeve; 67. a top rod; 68. a limiting plate; 69. a chute; 7. a trash removal mechanism; 71. a trash discharge port; 72. a first sealing block; 73. a spring; 74. a second sealing block; 75. a bottom bar; 8. a straight plate; 9. a transmission rod; 10. a flow guide cone; 11. a flow guide seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 5, in the present embodiment, the present embodiment is described with reference to fig. 1 to 5, and the present embodiment provides a screening device for a corn harvester, which includes a machine body 1, a screening chamber 2 fixed to a top end of the machine body 1; the top end of the front side of the screening chamber 2 is hinged with a sealing door 21; the top end of the screening chamber 2 is fixedly connected with a material conveying chamber 3; the top end of the material conveying chamber 3 is fixedly connected with a separation box 4; a conveying device 5 is arranged on one side of the top end of the machine body 1 far away from the screening chamber 2, and the other end of the conveying device 5 extends into the separation box 4; a screening mechanism 6 is arranged in the screening chamber 2; the bottom of the screening chamber 2 is provided with a impurity removing mechanism 7;

the screening mechanism 6 comprises a screen 61, a motor 62, a rotating shaft 63, a rotating plate 64, a round block 65, a driven sleeve 66, a push rod 67, a limiting plate 68 and a sliding groove 69; a screen 61 is fixedly connected in the screening chamber 2; a motor 62 is fixedly connected with the rear side of the interior of the screening chamber 2; the output end of the motor 62 is fixedly connected with a rotating shaft 63; the front end of the rotating shaft 63 is fixedly connected with a rotating plate 64; a round block 65 is fixedly connected with one end of the front side of the rotating plate 64 far away from the rotating shaft 63; the outer side of the round block 65 is sleeved with a driven sleeve 66; the top end of the driven sleeve 66 is fixedly connected with a mandril 67; the two sides of the interior of the screening chamber 2 are both provided with sliding chutes 69; limiting plates 68 are fixedly connected to two sides of the ejector rod 67, and the other ends of the limiting plates 68 extend into the sliding grooves 69; when the corn threshing device works, the machine body 1 conveys harvested corns into the separation box 4 through the conveying device 5, the separation box 4 harvests and separates the corns, the corns fall into the screening chamber 2 through the conveying chamber 3 and fall on the screen 61, the power supply of the motor 62 is switched on at the moment, the output end of the motor 62 drives the rotating shaft 63 to rotate, the rotating shaft 63 drives the rotating plate 64 to rotate, the rotating plate 64 drives the round block 65 to rotate, the round block 65 can drive the driven sleeve 66 to move up and down in the rotating process, the driven sleeve 66 drives the ejector rod 67 to move up and down, the ejector rod 67 shakes the screen 61 at intervals, the force received by the screen 61 is transmitted to the corns, the stones and sand on the surface can fall down and fall into the bottom of the screening chamber 2 through the screen 61 after the corns receive shaking force, further, the device drives the rotating shaft 63 to rotate through the output end of the motor 62 before the corns, the rotating shaft 63 drives the driven sleeve 65 to drive the driven sleeve 66 to move up and down, the ejector rod 67 drives the screen 61 to thresh the screen 61, so that the corns are separated from the stones and the sands, the corns, convenience is provided, and the following corn is higher in separation, and the threshing device is higher in practicability.

As shown in fig. 1, 2 and 5, the impurity discharging mechanism 7 comprises an impurity discharging port 71, a first sealing block 72, a spring 73, a second sealing block 74 and a bottom rod 75; the top end of the machine body 1 and the bottom end of the screening chamber 2 are both provided with a trash discharge port 71, and the cross section of the trash discharge port 71 is T-shaped; the bottom end of the impurity discharging port 71 is provided with a first sealing block 72; a group of springs 73 are fixedly connected around the top end of the first sealing block 72, and the top ends of the springs 73 are fixedly connected with the impurity discharging port 71; the top end of the first sealing block 72 is fixedly connected with a second sealing block 74; the bottom end of the driven sleeve 66 is fixedly connected with a bottom rod 75; when the screening chamber 2 works, the motor 62 drives the top rod 67 to move up and down through the driven sleeve 66, the bottom rod 75 is driven to move up and down at the same time, when the bottom rod 75 moves down, the bottom rod 75 can extrude the second sealing block 74, the second sealing block 74 can extrude the first sealing block 72, the spring 73 is stretched, the first sealing block 72 and the second sealing block 74 move down at the same time, the impurity discharging port 71 is opened, stones and sand falling inside the screening chamber 2 can be discharged to the outside through the impurity discharging port 71, and then the structure extrudes the second sealing block 74 at intervals through the bottom rod 75, so that the first sealing block 72 and the second sealing block 74 move down, the impurity discharging port 71 is opened, and stones and sand inside the screening chamber 2 can be automatically discharged.

As shown in fig. 2, 3 and 4, a straight plate 8 is fixedly connected to the top end of the ejector rod 67; a group of transmission rods 9 are fixedly connected to the top ends of the straight plates 8; when the corn thresher works, the ejector rod 67 drives the straight plate 8 to move upwards, the straight plate 8 drives the transmission rod 9 to move upwards, and the group of transmission rods 9 are beneficial to increasing the contact area with the screen 61, so that the force applied to the screen 61 is more uniform, and stones and sand in corn can be sufficiently shaken off.

As shown in fig. 2 and 5, a diversion cone 10 is fixedly connected to the top end of the second sealing block 74; in operation, the diversion cone 10 can divert stones and sand particles to avoid accumulation on the second sealing block 74.

As shown in fig. 2 and 5, a flow guide seat 11 is fixedly connected to the bottom end inside the screening chamber 2; when the screening device works, the flow guide seat 11 can guide the flow of the stones and the sand grains to avoid accumulation in the screening chamber 2.

The utility model discloses a theory of operation is: when the corn threshing device works, the machine body 1 conveys harvested corns into the separation box 4 through the conveying device 5, the separation box 4 harvests and separates the corns, the corns fall into the screening chamber 2 through the conveying chamber 3 and fall on the screen 61, the power supply of the motor 62 is switched on at the moment, the output end of the motor 62 drives the rotating shaft 63 to rotate, the rotating shaft 63 drives the rotating plate 64 to rotate, the rotating plate 64 drives the round block 65 to rotate, the round block 65 can drive the driven sleeve 66 to move up and down in the rotating process, the driven sleeve 66 drives the ejector rod 67 to move up and down, the ejector rod 67 shakes the screen 61 at intervals, the force applied to the screen 61 is transmitted to the corns, the stones and sand on the surface can fall down and fall into the bottom of the screening chamber 2 through the screen 61 after the corns receive the shaking force, further, the device drives the rotating shaft 63 to rotate through the output end of the motor 62 before the corns, the rotating shaft 63 drives the driven sleeve 65 to drive the driven sleeve 66 to move up and down, the ejector rod 67 drives the screen 61 to thresh the screen 61, so that the corns are separated from the stones and the sands, the corns, the separation is convenient and high in follow-up and the separation of the corn is realized;

motor 62 drives the in-process that ejector pin 67 reciprocated through driven cover 66, can drive sill bar 75 and reciprocate simultaneously, when sill bar 75 moves down, sill bar 75 can extrude No. two sealed pieces 74, no. two sealed pieces 74 extrude sealed piece 72, spring 73 is stretched this moment, a sealed piece 72 and No. two sealed pieces 74 move down simultaneously, arrange miscellaneous mouthful 71 and be opened, the stone and the sand grain that drop in screening chamber 2 inside can be discharged to the external world through arranging miscellaneous mouthful 71, and then this structure passes through sill bar 75 spaced to be extruded No. two sealed pieces 74 down, make a sealed piece 72 and No. two sealed pieces 74 move down, arrange miscellaneous mouthful 71 and be opened, can discharge the inside stone and the sand grain of screening chamber 2 automatically.

It should be noted that, in this document, relational terms such as first and second, and the like are only used for distinguishing one entity or operation from another entity or operation, and do not necessarily require or imply any actual relation or order between the entities or operations, and furthermore, the terms "comprise", or any other variation thereof are intended to cover a non-exclusive inclusion, so that a process, a method, an article, or an apparatus including a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A screening device for a corn harvester comprises a machine body (1), and is characterized in that a screening chamber (2) is fixedly connected to the top end of the machine body (1); the top end of the front side of the screening chamber (2) is hinged with a sealing door (21); the top end of the screening chamber (2) is fixedly connected with a material conveying chamber (3); the top end of the material conveying chamber (3) is fixedly connected with a separation box (4); a conveying device (5) is arranged on one side of the top end of the machine body (1) far away from the screening chamber (2), and the other end of the conveying device (5) extends into the separation box (4); a screening mechanism (6) is arranged in the screening chamber (2); the bottom of the screening chamber (2) is provided with a trash discharging mechanism (7);

the screening mechanism (6) comprises a screen (61), a motor (62), a rotating shaft (63), a rotating plate (64), a round block (65), a driven sleeve (66), an ejector rod (67), a limiting plate (68) and a sliding groove (69); a screen (61) is fixedly connected in the screening chamber (2); a motor (62) is fixedly connected with the rear side of the interior of the screening chamber (2); the output end of the motor (62) is fixedly connected with a rotating shaft (63); the front end of the rotating shaft (63) is fixedly connected with a rotating plate (64); a round block (65) is fixedly connected to one end of the front side of the rotating plate (64) far away from the rotating shaft (63); a driven sleeve (66) is sleeved on the outer side of the round block (65); the top end of the driven sleeve (66) is fixedly connected with a mandril (67); sliding grooves (69) are formed in the two sides of the interior of the screening chamber (2); the equal rigid coupling in both sides of ejector pin (67) has limiting plate (68), and the other end of limiting plate (68) all extends to in spout (69).

2. The screening device for the corn harvester is characterized in that the impurity discharging mechanism (7) comprises an impurity discharging port (71), a first sealing block (72), a spring (73), a second sealing block (74) and a bottom rod (75); the top end of the machine body (1) and the bottom end of the screening chamber (2) are provided with a trash discharge port (71) together, and the cross section of the trash discharge port (71) is T-shaped; a first sealing block (72) is arranged at the bottom end of the impurity discharging port (71); a group of springs (73) are fixedly connected around the top end of the first sealing block (72), and the top ends of the springs (73) are fixedly connected with the impurity discharging port (71); a second sealing block (74) is fixedly connected to the top end of the first sealing block (72); the bottom end of the driven sleeve (66) is fixedly connected with a bottom rod (75).

3. The screening device for the corn harvester according to claim 2, wherein a straight plate (8) is fixedly connected to the top end of the ejector rod (67); the top end of the straight plate (8) is fixedly connected with a group of transmission rods (9).

4. The screening device for the corn harvester according to claim 3, wherein a guide cone (10) is fixedly connected to the top end of the second sealing block (74).

5. The screening device for the corn harvester according to claim 4, wherein a flow guide seat (11) is fixedly connected to the bottom end inside the screening chamber (2).