阅读说明：本技术 一种农业种子多级筛分装置 (Agricultural seed multi-stage screening device ) 是由 陆璨 于 2019-09-17 设计创作，主要内容包括：本发明涉及农业机械技术领域,具体的公开了一种农业种子多级筛分装置,包括进料斗和筛分箱,筛分箱的顶部中心位置连通有进料斗,进料斗的底部伸入到筛分箱内部,筛分箱内部设置有多级涡状筛,多级涡状筛的底部固定连接有多级斜筛,多级斜筛的底部开设有嵌套槽,筛分箱的内部中间位置固定安装有电机,电机的输出轴连接有偏心轮,偏心轮滑动嵌套在嵌套槽的内部；多级斜筛的底部连通在软管的上端,筛分箱侧壁设置有多级种子出口,多级种子出口与软管底部连通,筛分箱的内底部设置有斜板,斜板的末端在筛分箱内侧壁设置有废渣出口,筛分箱的外侧壁设置有控制器。本发明优点：结构简单,操作方便,生产成本低,筛分顺畅,实现了多级筛分。(The invention relates to the technical field of agricultural machinery, and particularly discloses an agricultural seed multistage screening device which comprises a feeding hopper and a screening box, wherein the center of the top of the screening box is communicated with the feeding hopper, the bottom of the feeding hopper extends into the screening box, a multistage volute screen is arranged in the screening box, the bottom of the multistage volute screen is fixedly connected with a multistage inclined screen, the bottom of the multistage inclined screen is provided with an embedded groove, the middle position in the screening box is fixedly provided with a motor, an output shaft of the motor is connected with an eccentric wheel, and the eccentric wheel is slidably embedded in the embedded groove; the bottom intercommunication of multistage inclined screen is in the upper end of hose, and the screening case lateral wall is provided with multistage seed export, and multistage seed export and hose bottom intercommunication, the interior bottom of screening case is provided with the swash plate, and the end of swash plate is provided with the waste residue export at screening incasement lateral wall, and the lateral wall of screening case is provided with the controller. The invention has the advantages that: simple structure, convenient operation, low in production cost sieves smoothly, has realized multistage screening.)

1. The agricultural seed multistage screening device comprises a feed hopper (1) and a screening box (2), wherein the top center of the screening box (2) is communicated with the feed hopper (1), the bottom of the feed hopper (1) extends into the inside of the screening box (2), the agricultural seed multistage screening device is characterized in that a multistage vortex screen (7) is arranged inside the screening box (2), the bottom of the multistage vortex screen (7) is fixedly connected with a multistage inclined screen (8), an embedded groove (9) is formed in the bottom of the multistage inclined screen (8), a motor (11) is fixedly arranged in the middle of the inside of the screening box (2), an output shaft of the motor (11) is connected with an eccentric wheel (10), and the eccentric wheel (10) is slidably embedded in the embedded groove (9);

The bottom intercommunication of multistage inclined screen (8) is in the upper end of hose (13), screening case (2) lateral wall is provided with multistage seed export (5), multistage seed export (5) and hose (13) bottom intercommunication, the interior bottom of screening case (2) is provided with swash plate (12), the end of swash plate (12) is provided with waste residue export (3) at screening case (2) inside wall, the lateral wall of screening case (2) is provided with controller (6), controller (6) and motor (11) electric connection.

2. The agricultural seed multi-stage screening device according to claim 1, wherein four corners of the bottom of the screening box (2) are provided with universal wheels (4), and the universal wheels (4) are provided with brake components.

3. An agricultural seed multi-stage screening device according to claim 1, characterized in that the feed hopper (1) is of a funnel-shaped structure.

4. An agricultural seed multi-stage screening apparatus according to any one of claims 1 to 3, wherein the multi-stage vortex screen (7) comprises a multi-stage screen plate (15) and a vortex partition plate (16), the vortex partition plate (16) is fixedly arranged on the upper surface of the multi-stage screen plate (15), and the mesh number of the multi-stage screen plate (15) is gradually reduced from inside to outside.

5. an agricultural seed multi-stage screening apparatus according to claim 4, wherein the edge portions of the multi-stage scroll screen (7) are resiliently attached to the inner wall of the screening chamber (2) by springs (14).

6. An agricultural seed multi-stage screening device according to claim 4, characterized in that a material control column (17) is fixed at the middle position of the upper surface of the feed hopper (1).

7. An agricultural seed multi-stage screening device according to claim 4, characterized in that the multi-stage inclined screen (8) comprises an inclined screen (19) and a spacer ring (18), the spacer ring (18) is fixed on the upper surface of the inclined screen (19), and the aperture of the inclined screen (19) is smaller than that of the seeds.

8. The agricultural seed multi-stage screening device according to claim 1, wherein the upper surface of the eccentric wheel (10) is provided with a plurality of balls (20), the top of the nesting groove (9) is provided with a ball groove (21), and the balls (20) are nested in the ball groove (21).

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to an agricultural seed multistage screening device.

Background

China is a big agricultural country, and agriculture is also a root of national development, is related to the people and is a guarantee for people's life. Agricultural machinery refers to various machines used in the production process of crop planting and animal husbandry, as well as in the primary processing and treatment process of agricultural and animal products. Agricultural machinery includes agricultural power machinery, farmland construction machinery, soil farming machinery, planting and fertilizing machinery, plant protection machinery, farmland irrigation and drainage machinery, crop harvesting machinery, agricultural product processing machinery, animal husbandry machinery, agricultural transportation machinery and the like. Seeds are particularly important for agriculture. Seed screening machine is agricultural machine's a, and agricultural seed need use seed screening machine to sieve out the large granule and the stone in the seed when planting, but current seed screening machine can only single carry out vibration screening, and work efficiency is low, and the not convenient to use person's use has reduced seed screening machine's practicality.

Chinese patent (publication No. CN 107175199A, publication No. 2017.09.19) discloses an agricultural seed screening machine, which comprises a shell, wherein an inner box is arranged inside the shell, a baffle is transversely and fixedly connected inside the shell, four corners of the bottom of the inner box are fixedly connected with a fixing frame, the bottom of the fixing frame is movably connected with a roller, the top of the baffle is provided with a groove matched with the roller for use, and the left side of the top of the inner wall of the shell is fixedly connected with a first motor. Through the cooperation that sets up inner box, baffle, mount, gyro wheel, first motor, screw rod, spiral shell piece, first fixed block, branch, second fixed block, first sieve, second motor and cam and using, solved current seed screening machine can only be single carry out vibration screening, problem that work efficiency is low, this agricultural seed screening machine possesses the advantage that work efficiency is high, has made things convenient for user's use, has improved seed screening machine's practicality. The device uses the multiunit motor to drive, makes the device structure complicated, has increased manufacturing cost, is not convenient for popularize and implement.

Disclosure of Invention

The invention aims to provide an agricultural seed multistage screening device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

The utility model provides an agricultural seed multistage screening plant, includes feeder hopper and screening case, and the top central point of screening case puts the intercommunication and has the feeder hopper, and the bottom of feeder hopper stretches into screening incasement portion, and the feeder hopper below is provided with multistage vortex form sieve at screening incasement portion, and the multistage inclined screen of bottom fixedly connected with of multistage vortex form sieve, the nested groove has been seted up to the bottom of multistage inclined screen. The motor is fixedly installed in the middle of the interior of the screening box, an output shaft of the motor is connected with an eccentric wheel, and the eccentric wheel is slidably nested in the nesting groove. Under the effect of motor, the eccentric wheel rotates to make multistage vortex form sieve and multistage inclined sieve swing at screening incasement portion, the inside seed of feeder hopper falls on multistage vortex form sieve and sieves.

The bottom intercommunication of multistage inclined screen is in the upper end of hose, and screening case lateral wall is provided with multistage seed export, and multistage seed export and hose bottom intercommunication, the inside seed of multistage inclined screen get into inside the export of multistage seed and discharge the screening case through the hose to realize multistage screening. The bottom in the screening case is provided with the swash plate, and the end of swash plate is provided with the waste residue export at the screening incasement lateral wall, and the piece that multistage vortex form screen limit portion sieved surplus debris and multistage inclined screen sieve falls on the swash plate, discharges the screening case from the waste residue export at last. The lateral wall of screening case is provided with the controller, controller and motor electric connection. The controller can control the on-off and the rotation speed of the motor so as to control the screening speed.

As a further scheme of the invention: the bottom four corners of screening case is provided with the universal wheel, is provided with brake assembly on the universal wheel, and brake assembly has the braking action to the universal wheel, and the setting of universal wheel is convenient for the removal and the fixing of device.

as a further scheme of the invention: the feeder hopper is hopper-shaped structure, and the seed of being convenient for gets into the screening case.

As a further scheme of the invention: multistage vortex form sieve includes multistage sieve and vortex form baffle, and the fixed upper surface that sets up at multistage sieve of vortex form baffle, the mesh number of multistage sieve reduces from inside to outside gradually. Thereby can sieve, the bottom of feeder hopper is in the central top of multistage vortex form sieve, and the seed falls in the middle of the multistage sieve, and multistage vortex form sieve swing makes the seed do centrifugal motion and roll along with vortex form baffle clearance on multistage vortex form sieve to make the seed roll on multistage sieve, accomplish multistage screening. The sundries which are not screened fall from the multi-stage vortex-shaped screen edge part.

As a further scheme of the invention: the edge of the multi-stage volute screen is elastically connected to the inner wall of the screening box through a spring, so that the stability of the multi-stage volute screen is improved, and the multi-stage volute screen can swing conveniently.

As a further scheme of the invention: the upper surface intermediate position of feeder hopper is fixed with accuse material post, and accuse material post is in the inside below of feeder hopper, and the inside seed of feeder hopper is piled up and is put at multistage vortex form sieve central point, and accuse material post is along with the swing of multistage vortex form sieve, will pile up the seed at multistage vortex form sieve center and dial out feeder hopper below space to control feed speed, avoided the seed to pile up, make the screening more smooth and easy.

As a further scheme of the invention: the multistage inclined screen comprises an inclined screen and a separation ring, the separation ring is fixed on the upper surface of the inclined screen, and the aperture of the inclined screen is smaller than the aperture of seeds, so that scraps smaller than the diameter of the seeds are screened, and the seeds are convenient to discharge.

As a further scheme of the invention: the upper surface of the eccentric wheel is heavily provided with a plurality of balls, the top in the nesting groove is provided with a ball groove, the balls are nested in the ball groove, the balls and the ball groove are arranged, the rotating friction force of the eccentric wheel is reduced, the eccentric wheel can rotate more smoothly, and the swinging stability of the multi-stage volute screen and the multi-stage inclined screen is improved.

Compared with the prior art, the invention has the beneficial effects that: the multi-stage vortex screen and the multi-stage inclined screen are driven to swing by one motor, so that the device is simplified, and the production and manufacturing cost is saved. The bottom of the feed hopper is arranged above the center of the multi-stage volute sieve, the seeds fall in the middle of the multi-stage sieve plate, and the multi-stage volute sieve swings to enable the seeds to do centrifugal motion on the multi-stage volute sieve and roll along with the clearances of the volute partition plates, so that the seeds roll on the multi-stage sieve plate to complete multi-stage sieving. The accuse material post is along with multistage vortex form sieve swing, will pile up the seed at multistage vortex form sieve center and dial out feeder hopper below space to control feed speed, avoided the seed to pile up, make the screening more smooth and easy. The invention has the advantages that: simple structure, convenient operation, low in production cost sieves smoothly, has realized multistage screening.

Drawings

FIG. 1 is a schematic external structure diagram of an agricultural seed multi-stage screening device.

Fig. 2 is a schematic diagram of the internal structure of an agricultural seed multi-stage screening device.

FIG. 3 is a schematic structural diagram of a multi-stage vortex screen in an agricultural seed multi-stage screening device.

FIG. 4 is a schematic structural diagram of a multi-stage inclined screen in an agricultural seed multi-stage screening device.

FIG. 5 is a schematic view of the eccentric wheel structure of the multi-stage screening device for agricultural seeds.

In the figure, a feed hopper 1, a screening box 2, a waste residue outlet 3, a universal wheel 4, a multi-stage seed outlet 5, a controller 6, a multi-stage volute screen 7, a multi-stage inclined screen 8, a nesting groove 9, an eccentric wheel 10, a motor 11, an inclined plate 12, a hose 13, a spring 14, a multi-stage screen plate 15, a volute clapboard 16, a material control column 17, a spacing ring 18, an inclined screen 19, a ball 20 and a ball groove 21.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.