CN221246084U

CN221246084U - Grain cleaner

Info

Publication number: CN221246084U
Application number: CN202322985215.0U
Authority: CN
Inventors: 陈胜文
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-11-06
Filing date: 2023-11-06
Publication date: 2024-07-02
Anticipated expiration: 2033-11-06

Abstract

The utility model discloses a grain cleaner, comprising: the device comprises a frame, a feed hopper, a screening mechanism, a vibrating mechanism and a winnowing mechanism; the screening mechanism comprises a screen frame, a support frame and a discharge hopper, wherein the support frame can be arranged on the frame in a back-and-forth swinging manner, the screen frame is detachably arranged on the support frame and is positioned below an outlet of the feed hopper, a plurality of layers of screens which are arranged at intervals along the up-and-down direction are arranged on the screen frame, and a plurality of discharge hoppers are arranged at the front end of the support frame; the vibration mechanism is used for driving the support frame to vibrate back and forth; the wind selection mechanism comprises a first fan and a second fan, the first fan is arranged above the screening mechanism, an air outlet of the first fan is adjacent to an outlet of the feed hopper and faces to the rear, the second fan is arranged below the screening mechanism, and an air outlet of the second fan faces to the front. The device uses twice winnowing and adopts more than three layers of screens and vibration screening, thereby being capable of screening three or more grains at one time and greatly improving screening efficiency and grain purity.

Description

Grain cleaner

Technical Field

The utility model relates to the field of grain sorting, in particular to a grain cleaner.

Background

In the partial areas of China, intercropping planting mode is adopted, namely, two or more crops are planted in rows or bands alternatively in the same growing period on the same field, so that the purposes of improving the soil structure and increasing the yield and income are achieved. After harvesting and threshing, the mixed grains often need to be classified and cleaned for multiple times in different screening equipment to separate different grains.

The present screening apparatus has the following disadvantages: 1. in the prior art, although equipment capable of classifying and screening exists, most of the equipment is applied to factories, and the equipment has a complex structure and high cost and is not suitable for families in rural areas. At present, common screening equipment is used in rural families, the screening efficiency of the screening equipment is low, and three or more kinds of grain classification screening cannot be realized at one time, so that repeated screening is required, and the time and the labor are consumed; 2. often a plurality of impurities such as dust, sediment, leaves, grain barks and the like are mixed in the mixed grain threshing, and the common screening equipment cannot effectively remove the impurities, so that the impurities can be mixed in the screened grains to influence the purity of the grains. Therefore, improvements are needed.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, a first object of the present utility model is to provide a grain cleaner.

The technical scheme of the utility model is as follows: a grain cleaner, comprising: the device comprises a frame, a feed hopper, a screening mechanism, a vibrating mechanism and a winnowing mechanism;

The screening mechanism comprises a screen frame, a support frame and discharge hoppers, wherein the support frame can be installed on the frame in a front-back swinging mode, the screen frame is detachably installed on the support frame and is positioned below an outlet of the feed hopper, multiple layers of screens which are arranged at intervals along the up-down direction are arranged on the screen frame, the front end of the support frame is provided with the plurality of discharge hoppers, and the plurality of discharge hoppers correspond to the multiple layers of screens one by one;

The vibration mechanism is connected with the support frame and is used for driving the support frame to vibrate back and forth;

The winnowing mechanism comprises a first fan and a second fan, the first fan is arranged above the screening mechanism, an air outlet of the first fan is adjacent to an outlet of the feeding hopper and faces to the rear, the second fan is arranged below the screening mechanism, and an air outlet of the second fan faces to the front.

Further, the bottom of the frame is provided with a plurality of rollers.

Further, swing rods are respectively arranged on the left side and the right side of the support frame, the upper ends of the swing rods are rotatably connected with the frame, and the lower ends of the swing rods are rotatably connected with the support frame.

Further, the vibration mechanism comprises a driving piece, a driving shaft, a crank and a connecting rod, wherein the driving shaft is rotatably installed on the rear side of the frame, the driving piece is connected with the driving shaft, the crank is fixedly arranged on the driving shaft, the crank is rotatably connected with the connecting rod, and the connecting rod is rotatably connected with the supporting frame.

Further, the screen frame is disposed obliquely downward in the rear-to-front direction.

Compared with the prior art, the utility model has the following beneficial effects:

1. The winnowing mechanism of the equipment uses two fans, one fan is positioned above the screening mechanism and one fan is positioned below the screening mechanism, so that grains can be winnowed before and after screening respectively, impurities in the grains can be effectively blown away after twice winnowing, and various cleaner grains can be obtained;

2. The screening mechanism of the equipment adopts more than three layers of screens, and the screens can vibrate through the vibrating mechanism, so that three or more grains can be screened at one time, the screening efficiency is greatly improved, and the equipment is particularly suitable for being used in regions where grains are intercropped and mixed;

3. The device has the advantages of simple structure, low manufacturing and processing cost, convenient use and strong practicability.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

For a clearer description of embodiments of the utility model or of solutions in the prior art, the drawings that are required to be used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained, without the inventive effort, by a person skilled in the art from these drawings:

FIG. 1 is a schematic illustration of the present utility model;

FIG. 2 is a schematic illustration of the present utility model;

Fig. 3 is a schematic diagram of the present utility model.

Reference numerals:

1. A frame; 2. a feed hopper; 3. a screen frame; 4. a support frame; 5. a discharge hopper; 6. a screen; 7. a first fan; 8. a second fan; 9. a roller; 10. swing rod; 11. a driving shaft; 12. a crank; 13. a connecting rod; 14. and a motor.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", and the like 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.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 according to the specific circumstances.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features. 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" or "a second" may explicitly or implicitly include one or more such feature.

A grain cleaner as shown in fig. 1-3, comprising: frame 1, feeder hopper 2, screening mechanism, vibration mechanism and selection by winnowing mechanism.

The frame 1 is located to the feeder hopper 2, and screening mechanism includes screen frame 3, support frame 4 and arranges hopper 5, and support frame 4 can install in frame 1 with the back-and-forth swing, and demountable installation has screen frame 3 on the support frame 4, and screen frame 3 is located the export below of feeder hopper 2, is equipped with the multilayer on the screen frame 3 along the screen cloth 6 of upper and lower direction interval arrangement, and the front end of support frame 4 is equipped with a plurality of hopper 5 of arranging, and a plurality of hopper 5 of arranging and multilayer screen cloth 6 one-to-one.

The vibration mechanism is connected with the support frame 4 and is used for driving the support frame 4 to vibrate back and forth.

The wind selection mechanism includes first fan 7 and second fan 8, and screening mechanism top is located to first fan 7, and the air outlet of first fan 7 is adjacent and towards the rear with the export of feeder hopper 2, and second fan 8 is located screening mechanism below, and the air outlet of second fan 8 is towards the place ahead.

Specifically, frame 1 in this equipment is the metal frame that adopts steel welding such as channel-section steel, angle steel to be formed, and the processing of being convenient for is equipped with a plurality of gyro wheel 9 in the bottom of frame 1 to make things convenient for equipment to remove, improved portability.

The upper portion of frame 1 is partial to the rear region and is installed feeder hopper 2, and feeder hopper 2 is big-end-up's toper hopper, and the below of feeder hopper 2 has the export, and during the use, can be artifical in sending grain to feeder hopper 2 with the help of instrument such as spade, then grain alright fall on screen cloth 6 of below through this export.

The first fan 7 is installed near the feeder hopper 2, and the first fan 7 is a centrifugal fan, and its air outlet is adjacent and towards the rear with the export of feeder hopper 2, so, the grain can be blown by the air current of first fan 7 in the process of falling on screen cloth 6 below through the export of feeder hopper 2, can blow away impurity mixed therein from this.

The screening mechanism below the feed hopper 2 adopts a front-back vibration screening mode, so that when grains fall onto the screen 6, the vibration state can be kept, and the full screening is facilitated, and the screening effect is ensured. In the screening mechanism, the screen 6 is multi-layered, such as three layers, four layers and the like, and the meshes of the screen 6 gradually shrink from top to bottom, so that three or more grains can be screened at one time, and the screening efficiency is greatly improved.

The screen frame 3 is detachably connected with the supporting frame 4, so that the screen frames 3 with different screen 6 specifications can be replaced according to requirements. In the concrete setting, support frame 4 is for using the rectangle frame construction that the angle steel surrounds, and screen frame 3 can directly put on the support frame 4, and is more convenient.

In practical application, the left and right sides of the support frame 4 are respectively provided with a swing rod 10, the upper end of the swing rod 10 is rotationally connected with the frame 1, and the lower end of the swing rod 10 is rotationally connected with the support frame 4, so that the support frame 4 is suspended on the frame 1 through the swing rod 10. Then the vibration mechanism comprises a driving piece, a driving shaft 11, a crank 12 and a connecting rod 13, wherein the driving shaft 11 is rotatably arranged at the rear side of the frame 1, the driving piece is connected with the driving shaft 11, the crank 12 is fixedly arranged on the driving shaft 11, the crank 12 is rotatably connected with the connecting rod 13, and the connecting rod 13 is rotatably connected with the supporting frame 4, so that when the driving shaft 11 rotates, the supporting frame 4 can be driven to swing back and forth through the crank 12 and the connecting rod 13. The vibration mode is simple and convenient to realize.

The driving piece in the device is a motor 14, the motor 14 is connected with a fan shaft of the centrifugal fan through a belt transmission mechanism, the fan shaft is connected with the driving shaft 11 through the belt transmission mechanism, and the belt transmission mechanism is a common transmission form and is not repeated.

When the screen 6 continuously vibrates back and forth, grains falling onto the screen 6 are screened by vibration, so that grains with different grain sizes fall onto the screens 6 of different layers and then fall from the corresponding discharge hopper 5 at the front end of each screen 6 to be discharged.

In order to enable the grains to smoothly flow forward and be discharged, the screen frame 3 is disposed obliquely downward in a rear-to-front direction.

In order to improve the purity of the screened grains, besides the first fan 7 is used for blowing away the first impurities at the feed hopper 2, a second fan 8 is further arranged, the second fan 8 is an axial flow fan, the second fan 8 is positioned below the screening mechanism, and the second fan 8 blows air forwards, so that the classified grains can be subjected to second air selection, and the cleaner grains can be obtained.

In summary, the device has the following characteristics:

2. The screening mechanism of the equipment adopts more than three layers of screens 6, and the vibration of the screens 6 can be carried out through the vibration mechanism, so that three or more grains can be screened at one time, the screening efficiency is greatly improved, and the equipment is particularly suitable for being used in regions where grains are intercropped and mixed;

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A grain cleaner, comprising: the device comprises a frame, a feed hopper, a screening mechanism, a vibrating mechanism and a winnowing mechanism;

2. The grain cleaner of claim 1, wherein a plurality of rollers are provided at a bottom of the frame.

3. The grain cleaner of claim 1, wherein the left and right sides of the support frame are respectively provided with a swing link, the upper end of the swing link is rotatably connected with the frame, and the lower end of the swing link is rotatably connected with the support frame.

4. The grain cleaner of claim 1, wherein the vibration mechanism includes a driving member, a driving shaft, a crank, and a link, the driving shaft is rotatably mounted at a rear side of the frame, the driving member is connected to the driving shaft, the crank is fixedly disposed on the driving shaft, the crank is rotatably connected to the link, and the link is rotatably connected to the support frame.

5. The grain cleaner of claim 1, wherein the screen frame is disposed diagonally downward in a rear-to-front direction.