CN220329236U - Improved variety screening device - Google Patents

Abstract

The utility model belongs to the technical field of corn breeding, and particularly relates to an improved variety screening device which comprises a frame which can ensure the use stability of the device and enable screened seeds to fall to the front and rear of the device respectively, wherein a screening assembly which can drive a certain number of seeds to shake so as to accelerate the improved variety screening speed is arranged on the frame, a driving assembly which can enable the screening assembly to swing continuously within a certain angle range is also arranged on the frame, and a discharging assembly which can assist the device to discharge the seeds is arranged on one side of the screening assembly. The utility model is convenient for driving all seeds to continuously shake and turn over the screen cylinder under the driving action of the driving component, and avoids that part of seeds are always piled up in a place which cannot be contacted with the screen plate, so that the seeds are contacted with the screen plate in a short time, and the screening of the seeds is rapidly completed; the sieve plate is convenient to quickly replace according to the size of the seed granularity, so that the screening requirement is met.

Description

Improved variety screening device

Technical Field

The utility model belongs to the technical field of corn breeding, and particularly relates to an improved variety screening device.

Background

Corn seeds are propagules that have the ability to grow into corn adults. In order to plant better quality corn, it is often necessary to screen the harvested seeds during the breeding stage to remove the non-filled kernels from the corn seeds.

The Chinese patent document with the publication number of CN214555187U discloses an improved variety screening device for corn breeding, which drives a first screen plate and a second screen plate to move up and down through a screw rod driven by a second motor, and screens seeds entering a screening box according to the size of seeds.

However, in the prior art, when a large number of non-screened seeds are stacked above the screen plate, part of the seeds located at a higher position are blocked by the seeds stacked below the screen plate and cannot quickly contact the screen plate to be screened, so that an improved variety screening device is provided.

Disclosure of Invention

The utility model aims to provide an improved variety screening device.

The technical scheme adopted by the utility model is as follows:

the utility model provides an improved variety sieving mechanism, includes the frame that can guarantee the stability in use of this device and make the seed after the screening fall to this device front and back respectively, be provided with the screening subassembly that can drive a certain amount of seed and rock thereby accelerate improved variety screening speed in the frame, still be provided with on the frame can make the continuous wobbling drive assembly of screening subassembly in certain angle range, screening subassembly one side is provided with the subassembly of unloading that can assist this device to unload the seed;

the screening component comprises a containing part for containing seeds to be screened, a screening part for adjusting screening precision according to the granularity of the seeds, and a guide part for guiding the seeds to flow out of the device rapidly.

Preferably: the holding part comprises supports fixedly arranged on two sides of the frame, a screen cylinder is movably connected between the supports, a feeding cover is movably connected above the screen cylinder, and a discharging cover is fixedly connected below the screen cylinder.

Preferably: the screening piece comprises a screen frame fixedly installed in the screen cylinder, and a screen plate is fixedly connected below the screen frame.

Preferably: the guide piece comprises a guide plate fixedly connected in the screen frame, a discharge pipe is fixedly connected to the front side surface of the screen frame, and a discharge cover is fixedly connected to the front end of the discharge pipe.

Preferably: and a limiting rod is fixedly connected between the screen drum and the screen frame.

Preferably: the support is rotatably connected with the screen cylinder.

Preferably: the screen cylinder is in sliding connection with the screen frame and is limited by a limiting rod.

The beneficial effects of the utility model are as follows: the screen drum which can drive all seeds to shake and turn over continuously is convenient to drive by the driving component, so that partial seeds are prevented from being accumulated in places which cannot be contacted with the screen plate all the time, the seeds are contacted with the screen plate in a short time, and the screening of the seeds is completed rapidly; the sieve plate is convenient to quickly replace according to the size of the seed granularity, so that the screening requirement is met.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a schematic view of an isometric structure of an improved variety screening device according to the present utility model;

FIG. 2 is a schematic diagram of a front view of an improved variety screening device according to the present utility model;

FIG. 3 is a schematic view of the components and parts of a screening assembly of an improved variety screening device according to the present utility model;

fig. 4 is a schematic cross-sectional view of a portion of the component of fig. 2.

The reference numerals are explained as follows:

1. a frame; 2. a screening component; 201. a support; 202. a screen drum; 203. a feeding cover; 204. a discharge cap; 205. a screen frame; 206. a sieve plate; 207. a material guide plate; 208. a discharge pipe; 209. a discharge cover; 210. a limit rod; 3. a drive assembly; 301. a bracket; 302. a motor; 303. a cam; 304. a crank; 4. a discharge assembly; 401. connecting sleeves; 402. a rocking handle.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model is further illustrated by the following examples in connection with the accompanying drawings.

As shown in fig. 1-4, an improved variety screening device comprises a frame 1 which can ensure the use stability of the device and enable screened seeds to fall to the front and rear of the device respectively, a screening assembly 2 which can drive a certain number of seeds to shake so as to accelerate the improved variety screening speed is arranged on the frame 1, a driving assembly 3 which can enable the screening assembly 2 to swing continuously within a certain angle range is also arranged on the frame 1, and a discharging assembly 4 which can assist the device to discharge the seeds is arranged on one side of the screening assembly 2.

In this embodiment: the screening assembly 2 comprises a containing part for containing seeds to be screened, a screening part capable of adjusting screening precision according to the granularity of the seeds, and a guide part for guiding the seeds to quickly flow out of the device, wherein the containing part comprises supports 201 fixedly arranged on two sides of the frame 1, a screen drum 202 is movably connected between the supports 201, a feeding cover 203 is movably connected above the screen drum 202, a discharging cover 204 is fixedly connected below the screen drum 202, the screening part comprises a screen frame 205 fixedly arranged in the screen drum 202, a screen plate 206 is fixedly connected below the screen frame 205, the guide part comprises a guide plate 207 fixedly connected in the screen frame 205, a discharge pipe 208 is fixedly connected to the front side surface of the screen frame 205, a discharge cover 209 is fixedly connected to the front end of the discharge pipe 208, and a limit rod 210 is fixedly connected between the screen drum 202 and the screen frame 205; the support 201 is rotationally connected with the screen cylinder 202, and the screen cylinder 202 is slidably connected with the screen frame 205 and limited by the limiting rod 210; after the feeding cover 203 is opened, seeds to be screened can be thrown into the screen cylinder 202 which can rotate relative to the support 201, after the discharging cover 204 is opened, unqualified seeds which pass through a screening piece and are accumulated in the bottom area of the screen cylinder 202 can be discharged out of the screen cylinder 202, after a screen plate 206 with certain screening precision is installed in the screen frame 205 and the screen frame 205 is connected with the screen cylinder 202 through the limiting rod 210, the screen plate 206 can intercept qualified seeds thrown into the screen cylinder 202, after the discharging cover 209 is opened, qualified seeds above the screen plate 206 leave the screen cylinder 202 along the discharging pipe 208, and when the front end of the screen plate 206 is inclined downwards, the guide plate 207 can guide the seeds piled on two sides of the screen plate 206 to flow to the discharging pipe 208 rapidly.

In this embodiment: the driving assembly 3 comprises a bracket 301 fixedly connected to the rear of the screen cylinder 202, a motor 302 is fixedly arranged on the frame 1, the output end of the motor 302 is fixedly connected with a cam 303, and a crank 304 is arranged between the bracket 301 and the cam 303; the bracket 301 and the cam 303 are both in rotary connection with the crank 304; after the rotation of the output end of the motor 302 is transmitted to the screen cylinder 202 through the cam 303, the crank 304 and the bracket 301, the screen cylinder 202 continuously swings within a certain angle range relative to the support 201.

In this embodiment: the discharging assembly 4 comprises a connecting sleeve 401 fixedly connected to one end of the screen cylinder 202, and a rocking handle 402 is fixedly connected to the connecting sleeve 401; the connecting sleeve 401 is connected with the rocking handle 402 through threads; after the rocking handle 402 is manually rotated, the screen cylinder 202 rotates relative to the support 201 in the same direction as the rocking handle 402 rotates under the driving action of the connecting sleeve 401.

Working principle: when the device is installed to finish fine seed screening work for corn breeding, a proper amount of seeds to be screened are poured into the sieve barrel 202 after the feeding cover 203 is opened, then the feeding cover 203 is closed, the motor 302 is started, the sieve barrel 202 is driven to swing in a certain angle range relative to the support 201 by the motor 302, at the moment, the seeds in the sieve barrel 202 continuously shake and turn over when the sieve barrel 202 swings, in the process of shaking and turn over the seeds, qualified seeds are always reserved above the sieve plate 206, and unqualified seeds fall on the bottom area of the sieve barrel 202 after passing through the sieve plate 206; then, when the motor 302 is stopped, the direction of the discharging pipe 208 is finely adjusted by rotating the rocking handle 402, and when the discharging pipe 208 obliquely faces downwards to the frame 1, the discharging cover 204 and the discharging cover 209 can be removed, then qualified seeds flow to the front of the frame 1 after flowing along the discharging pipe 208 to the frame 1, and unqualified seeds flow to the rear of the frame 1 after flowing out from the bottom of the screen cylinder 202.

While the preferred embodiments of the present utility model have been described in detail with reference to the drawings, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the knowledge of those skilled in the art.

Claims (7)

1. An improved variety screening device which is characterized in that: the device comprises a frame (1) which can ensure the use stability of the device and enable screened seeds to fall to the front and the rear of the device respectively, wherein a screening component (2) which can drive a certain number of seeds to shake so as to accelerate the screening speed of fine seeds is arranged on the frame (1), a driving component (3) which can enable the screening component (2) to swing continuously within a certain angle range is also arranged on the frame (1), and a discharging component (4) which can assist the device to discharge the seeds is arranged on one side of the screening component (2);

the screening component (2) comprises a containing part for containing seeds to be screened, a screening part for adjusting screening precision according to the granularity of the seeds, and a flow guiding part for guiding the seeds to flow out of the device rapidly.

2. The improved variety screening device of claim 1, wherein: the accommodating part comprises supporting seats (201) fixedly arranged on two sides of the frame (1), a screen cylinder (202) is movably connected between the supporting seats (201), a feeding cover (203) is movably connected above the screen cylinder (202), and a discharging cover (204) is fixedly connected below the screen cylinder (202).

3. An improved variety screening device as claimed in claim 2, wherein: the screening piece comprises a screen frame (205) fixedly installed in the screen cylinder (202), and a screen plate (206) is fixedly connected below the screen frame (205).

4. An improved variety screening device as claimed in claim 3, wherein: the guide piece comprises a guide plate (207) fixedly connected in the screen frame (205), a discharge pipe (208) is fixedly connected to the front side surface of the screen frame (205), and a discharge cover (209) is fixedly connected to the front end of the discharge pipe (208).

5. An improved variety screening device as claimed in claim 3, wherein: a limiting rod (210) is fixedly connected between the screen cylinder (202) and the screen frame (205).

6. An improved variety screening device as claimed in claim 2, wherein: the support (201) is rotatably connected with the screen cylinder (202).

7. The improved variety screening device of claim 5, wherein: the screen cylinder (202) is in sliding connection with the screen frame (205) and is limited by a limiting rod (210).