CN115318607A - Wheat screening plant - Google Patents

Abstract

The invention discloses a wheat screening device, which relates to the field of agricultural product screening. It comprises a base, an air separation bin, a screw feeder and a storage bin which are fixed in sequence from bottom to top. There is a material receiving port on the top, and the air separation bin is divided into a collection room and a material selection room by a vertical plate. The blanking port corresponding to the material receiving port is provided with a fan in the material selection chamber. The bottom of the storage bin is connected to the feeding port of the screw feeder. The top of the storage bin is provided with a feeding port, and the interior of the storage bin is vertically provided with Feeding screw, a recovery box is slidably connected to the lower end of the screening bin, a first sieve plate is slidably connected to the upper end of the inner side of the screening bin, and a second sieve plate is slidably connected to the lower end of the inner side of the screening bin. Dust spills out, and the screening efficiency can be improved.

Description

A kind of wheat screening device

technical field

The invention relates to the technical field of agricultural product screening, in particular to a wheat screening device.

Background technique

Wheat is one of the most important food crops in our country. After wheat is harvested, it will be mixed with impurities such as straw, soil, sand, ropes, weeds, etc. Therefore, it is necessary to remove impurities from the newly harvested wheat.

In the prior art, the preliminary sorting of wheat is usually screened by vibrating sieves. On the one hand, a large amount of dust overflows, seriously affecting the construction environment; on the other hand, light impurities such as ropes and weeds mixed in the wheat It is easy to block the screen of the vibrating screen; the effect of impurity removal is not ideal, and it needs to be screened several times to clean it, and the efficiency of impurity removal is low.

Contents of the invention

The object of the present invention is to provide a wheat screening device to solve the above-mentioned problems in the prior art, which can prevent dust from overflowing and improve screening efficiency.

To achieve the above object, the present invention provides the following scheme:

The invention provides a wheat screening device, which comprises a base, a winnowing bin, a screw feeder and a storage bin which are fixed sequentially from bottom to top, a screening bin is fixed on the top of the base, and a material receiving port is arranged on the top of the screening bin , the inside of the winnowing bin is divided into a miscellaneous room and a material selection room by a vertical plate, and the vertical plate is provided with a miscellaneous discharge port connecting the miscellaneous room and the material selection room, and the bottom of the material selection room is provided with a corresponding material inlet. There is a fan in the material selection room, and a filter screen above the miscellaneous discharge port is fixed in the miscellaneous room. The upper end of the miscellaneous room is connected with a bag filter. The storage bin is funnel-shaped, and the bottom of the storage bin is connected with a spiral The feeding port of the feeder, the top of the storage bin is provided with a feeding port, the inside of the storage bin is provided with a feeding screw vertically, the feeding screw is connected with a feeding motor, and the outlet of the screw feeder is connected with the material selection room The lower end of the screening bin is slidingly connected with a recovery box, the inner rear end of the screening bin is fixedly connected with a motor, the end of the main shaft of the motor is fixedly connected with a gear, and the upper end of the inner side of the screening bin is slidingly connected with a first screen plate, the left and right ends of the first sieve plate are fixedly connected with first springs, the first spring at the left end is slidably connected with the screening bin, and the other end of the first spring at the right end is fixedly connected with a fixed plate, And the fixed plate is slidably connected with the screening chamber, the upper and lower ends of the fixed plate are fixedly connected with the fixed rod, the outer left end of the fixed rod is slidably connected with the fixed block, and the fixed block is slidably connected with the screening chamber, the fixed block The inner side is fixedly connected with a second spring, and the second spring is fixedly connected with the fixed rod. The inner lower end of the screening chamber is slidably connected with a second sieve plate, and the left and right sides of the lower end of the second sieve plate are fixedly connected with support blocks. A support plate is slidably connected to the lower end of the outer side of the support block, and the support plate is fixedly connected to the screening chamber. A fourth spring is fixedly connected to the inner side of the support plate, and the other end of the fourth spring is fixedly connected to the support block.

Optionally, the side of the vertical plate close to the material selection chamber is fixedly connected with a primary screening plate, and the primary screening plate is a continuously arranged arc-shaped wave connection plate with through holes; the primary screening plate A screening pressure head for squeezing wheat is arranged on it.

Optionally, the screening head includes a rotating shaft, a pressing head body, a third spring and an elastic body; the pressing head body is fixed to the rotating shaft; and the elastic body is connected to the pressing head body through a third spring.

Optionally, the bottom of the miscellaneous chamber is provided with a miscellaneous cleaning port, and the matching miscellaneous cleaning port is provided with a protective cover.

Optionally, the fan is connected to the feeding motor of the screw feeder through a belt.

Optionally, a first discharge port is fixedly connected to the upper end of the rear side of the screening bin, and the first discharge port runs through the screening bin, and a storage box is fixedly connected to the middle part of the rear side of the screening bin.

Optionally, a moving rod is slidably connected to the outside of the fixed block, and the moving rod is slidably connected to the screening chamber.

Optionally, the middle part of the lower end of the first sieve plate is fixedly connected with teeth, and the gears are engaged with the teeth.

Optionally, a second discharge port is fixedly connected to the lower end of the right side of the screening chamber, and the discharge port runs through the screening chamber.

Compared with the prior art, the present invention has achieved the following technical effects:

In the present invention, the wheat is poured from above the sieving chamber through the first sieve plate, the second sieve plate, the motor and the teeth. When passing through the first sieve plate, the motor rotates to drive the gears to mesh with the teeth. The first sieve plate will shake left and right, and the first spring will sieve the material on the top of the first sieve plate to the second sieve plate. Since the sieve hole of the first sieve plate is larger than the sieve hole of the second sieve plate, The wheat screened by the second sieve plate will be cleaner, avoiding the need for multiple screenings with equipment, and improving efficiency; through the set fixed plate, moving rod, first spring and fixed block, when it is necessary to replace the new sieve plate , you can press the moving lever at the right end of the screening chamber, and press the fixed block back into the groove in the fixed rod, so that the fixed rod drives the fixed plate out of the screening chamber, thereby driving the first sieve plate from the screening The sieve plate can be easily replaced or cleaned; the elastic body can avoid damage to the wheat caused by too much force when it comes into contact with the wheat. There is a winnowing bin, which can remove light impurities such as ropes and weeds mixed in the wheat, effectively preventing the blockage of the screen and improving the screening efficiency; and a bag dust collector can prevent dust from overflowing, The construction environment is protected.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the structural representation of wheat screening device of the present invention;

Fig. 2 is a structural schematic diagram of place A of Fig. 1 of the present invention;

Fig. 3 is the schematic diagram of the structure at B of Fig. 1 of the present invention;

Fig. 4 is the structure schematic diagram of screening pressure head of the present invention;

Explanation of reference signs: 100-wheat screening device; 1-base; 2-screening bin; 3-material selection chamber; 4-fan; 5-belt; Motor; 9-screw feeder; 10-feeding port; 11-feeding screw; 12-storage bin; 13-feeding motor; 14-feeding port; 15-bag filter; 16-filter; 17- Miscellaneous discharge port; 18-collection chamber; 19-cleaning port; 20-protective cover; 21-wind selection bin; 22-screening head; 23-primary screening plate; ;26-elastic body; 27-the first outlet; 28-the fourth spring; 29-recovery box; 30-motor; 31-gear, 32-the first sieve plate; ; 35-fixed rod; 36-second spring; 37-fixed block; 38-moving rod; 44-the second outlet.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The object of the present invention is to provide a wheat screening device to solve the above-mentioned problems in the prior art, which can prevent dust from overflowing and improve screening efficiency.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the present invention provides a wheat screening device 100, which includes a base 1, a winnowing bin 21, a screw feeder 9 and a storage bin 12 fixed sequentially from bottom to top , the top of the base 1 is fixed with a screening bin 2, and the top of the screening bin 2 is provided with a feed opening. There is a miscellaneous outlet 17 connecting the miscellaneous chamber 18 and the material selection chamber 3, the bottom of the material selection chamber 3 is provided with a blanking port 10 corresponding to the material receiving port, the material selection chamber 3 is provided with a fan 4, and the miscellaneous chamber 18 is fixed with a filter screen 16 above the miscellaneous discharge port 17, the upper end of the miscellaneous chamber 18 is connected with a bag filter 15, the bottom of the miscellaneous chamber 18 is provided with a miscellaneous cleaning port 19, and the matching miscellaneous port 19 is provided with a protective cover 20. The fan 4 is connected to the feeding motor 8 of the screw feeder 9 through the belt 5, the storage bin 12 is funnel-shaped, the bottom of the storage bin 12 is connected to the feeding port of the screw feeder 9, and the top of the storage bin 12 is provided with a feeding port 14 , the interior of the storage bin 12 is vertically provided with a feeding screw 11, the feeding screw 11 is connected with a feeding motor 13, and the discharge port 7 of the screw feeder 9 is connected with the material selection chamber 3; the lower end of the screening bin 2 is slidingly connected with a The recovery box 29 is fixedly connected with a motor 30 at the inner rear end of the screening bin 2, and the main shaft end of the motor 30 is fixedly connected with a gear 31, and the upper end of the inner side of the screening bin 2 is slidably connected with a first sieve plate 32, and the left and right sides of the first sieve plate 32 Both ends are fixedly connected with a first spring 33, the first spring 33 at the left end is slidably connected with the screening bin 2, the other end of the first spring 33 at the right end is fixedly connected with a fixed plate 34, and the fixed plate 34 is connected with the screening bin 2 Slidingly connected, the upper and lower ends of the fixed plate 34 are fixedly connected with a fixed rod 35, the left end of the fixed rod 35 is slidably connected with a fixed block 37, and the fixed block 37 is slidably connected with the screening bin 2, and the inside of the fixed block 37 is fixedly connected with a second Spring 36, and the second spring 36 is fixedly connected with the fixed rod 35, the inner lower end of the screening chamber 2 is slidingly connected with the second sieve plate 40, and the left and right sides of the second sieve plate 40 are fixedly connected with the support block 41, the support block 41 The outer lower end is slidingly connected with a support plate 42, and the support plate 42 is fixedly connected with the screening bin 2, and the inner side of the support plate 42 is fixedly connected with a fourth spring 28, and the other end of the fourth spring 28 is fixedly connected with the support block 41; 2. A first discharge port 27 is fixedly connected to the upper end of the rear side, and the first discharge port 27 runs through the screening chamber 2, and a storage box is fixedly connected to the middle part of the rear side of the screening chamber 2. A moving rod 38 is slidably connected to the outside of the fixed block 37 , and the moving rod 38 is slidably connected to the screening bin 2 . The middle part of the lower end of the first sieve plate 32 is fixedly connected with a tooth 39 , and the gear 31 is engaged with the tooth 39 . The lower end of the right side of the screening chamber 2 is fixedly connected with a second discharge port 44 , and the discharge port 7 runs through the screening chamber 2 .

Further preferably, the side of the vertical plate 6 close to the material selection chamber 3 is fixedly connected with a primary screening plate 23, and the primary screening plate 23 is an arc-shaped wave connection plate with through holes arranged continuously; A screening head 22 for squeezing the wheat is provided. The screening head 22 includes a rotating shaft 24 , a pressing head body 25 , a third spring 43 and an elastic body 26 ; the pressing head body 25 is fixed to the rotating shaft 24 ; the elastic body 26 is connected to the pressing head body 25 through a third spring 43 .

During use, the newly harvested wheat is added in the storage bin 12 from the feeding port 14, and the feeding motor 13 acts, and under the action of the feeding screw 11, the wheat enters the screw feeder 9, and under the action of the screw feeder 9, The wheat is transported to the material selection chamber 3, and under the extrusion action of the primary screening plate 23 and the screening head 22, the sundries attached to the surface of the wheat are separated from the wheat, and driven by the rotation of the screening head 22, the Wheat and debris fall from the end of the primary screening plate 23, the primary screening plate 23 is located above the fan 4, and has a large gap with the inner wall of the material selection chamber 3, so that the wheat and debris that are easy to separate can fall from this gap, and then Under the action of the fan 4, light impurities such as ropes, weeds, and dust are blown into the miscellaneous chamber 18, and under the action of the filter screen 16, impurities such as ropes, weeds and the like are left in the miscellaneous chamber 18, The dust is eliminated by the bag filter 15, and the wind-selected wheat enters the screening bin 2 from the discharge port 10. When passing through the first sieve plate 32, the motor rotates, driving the gear 31 and the teeth 39 to mesh, and the first The sieve plate 32 will shake left and right, and the first spring 33 will be forced to sieve the material on the upper end of the first sieve plate 32 onto the second sieve plate 40. Larger, the wheat screened by the second sieve plate 40 will be cleaner, and the impurities screened by the first sieve plate 32 will naturally fall into the storage box from the first discharge port 27 at the rear end of the sieve bin 2 for recovery and screening. , when the wheat falls on the second sieve plate 40, the support block 41 squeezes the second spring 36 inside the support plate 42 under the action of gravity, so that the second sieve plate 40 vibrates, and the second sieve plate 40 The wheat is sieved out, and the sifted impurities are discharged from the second discharge port 44 at the right end of the sieving bin 2, and the remaining clean materials fall into the recovery box 29 under the action of inertia. When a new sieve plate needs to be replaced, it can be Press the moving rod 38 at the right end of the screening chamber 2, and press the fixed block 37 back into the groove of the fixed rod 35, so that the fixed rod 35 drives the fixed plate 34 to be drawn out from the screening chamber 2, thereby driving the first screen Plate 32 is extracted from screening bin 2, and is replaced or cleaned, and there is no way to press the fixed block 37 when the moving rod 38 is not stressed.

In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the present invention, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention; meanwhile, for those of ordinary skill in the art, according to the present invention The idea of the invention will have changes in the specific implementation and scope of application. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (9)

1. A wheat screening plant which characterized in that: the automatic impurity-removing and dust-removing device comprises a base, a winnowing bin, a spiral feeder and a storage bin which are sequentially fixed from bottom to top, wherein the top of the base is fixedly provided with a sieving bin, the top of the sieving bin is provided with a material receiving port, the winnowing bin is internally divided into an impurity collecting chamber and a material selecting chamber by a vertical plate, the vertical plate is provided with an impurity discharging port for connecting the impurity collecting chamber and the material selecting chamber, the bottom of the material selecting chamber is provided with a material dropping port corresponding to the material receiving port, the material selecting chamber is internally provided with a fan, the impurity collecting chamber is internally and fixedly provided with a filter screen positioned above the impurity discharging port, the upper end of the impurity collecting chamber is connected with a bag-type dust remover, the storage bin is funnel-shaped, the bottom of the storage bin is connected with a material inlet of the spiral feeder, the top of the storage bin is provided with a material feeding port, a feeding spiral is vertically arranged in the storage bin, the feeding spiral is connected with a feeding motor, and a material outlet of the spiral feeder is connected with the material selecting chamber; the screening bin comprises a screening bin body, a screening bin and a motor, wherein the screening bin body is provided with a screening bin, the screening bin body is provided with a left end and a right end, the lower end of the screening bin body is slidably connected with a recovery box, the rear end of the inner side of the screening bin body is fixedly connected with the motor, the gear is fixedly connected with the tail end of a main shaft of the motor, the upper end of the inner side of the screening bin body is slidably connected with a first screen plate, the left end and the right end of the first screen plate are fixedly connected with first springs, the first spring is positioned at the left end and is slidably connected with a fixed plate, the other end of the first spring is slidably connected with the screening bin body, the other end of the first spring is fixedly connected with a fixed plate, the fixed plate is slidably connected with the screening bin body, the upper end and the lower end of the fixed plate are fixedly connected with fixed rods, the left end and right end of the fixed plate are slidably connected with fixed blocks, the fixed plates are slidably connected with fixed blocks, the left ends of the fixed plates and are slidably connected with the screening bin bodies, the fixed blocks and are fixedly connected with fixing rods, the supporting plates, the lower ends of the inner side of the screening bin body is fixedly connected with a fourth spring, the supporting plate is fixedly connected with a supporting plate, the supporting plate is fixedly connected with a supporting block.

2. A wheat screening device as claimed in claim 1, wherein: one side of the vertical plate close to the material selecting chamber is fixedly connected with a primary screening plate which is an arc-shaped wave connecting plate with through holes and is continuously arranged; and a screening pressure head for extruding the wheat is arranged on the primary screening plate.

3. A wheat screening device as claimed in claim 1, wherein: the screening pressure head comprises a rotating shaft, a pressure head body, a third spring and an elastic body; the pressure head body is fixed with the rotating shaft; the elastic body is connected with the pressure head body through a third spring.

4. A wheat screening device as claimed in claim 1, in which: the bottom of the impurity collecting chamber is provided with an impurity removing port, and a protective cover is arranged at the impurity removing port.

5. A wheat screening device as claimed in claim 1, in which: the fan is connected with a feeding motor of the screw feeder through a belt.

6. A wheat screening device as claimed in claim 1, wherein: screening storehouse rear side upper end fixedly connected with first discharge gate, and first discharge gate runs through the screening storehouse, screening storehouse rear side middle part fixedly connected with containing box.

7. A wheat screening device as claimed in claim 1, wherein: the fixed block outside sliding connection has the carriage release lever, carriage release lever and screening storehouse sliding connection.

8. A wheat screening device as claimed in claim 1, wherein: the middle of the lower end of the first sieve plate is fixedly connected with teeth, and the gear is meshed with the teeth.

9. A wheat screening device as claimed in claim 1, wherein: the lower end of the right side of the screening bin is fixedly connected with a second discharge hole, and the discharge hole penetrates through the screening bin.

Images