CN218133200U - A vibrating screening machine for grain filtering - Google Patents

Abstract

The utility model belongs to the technical field of the shale shaker, refer in particular to a vibratory screening machine for cereal filters. Including vibrating motor, and by vibrating motor drive vibration's vibration screening disk body, the inner chamber of vibration screening disk body is equipped with last filter and lower filter that the face equipartition has the filtration pore, the filtration pore aperture of crossing of going up the filter is greater than the filtration pore aperture of crossing of filter down, and go up the filter and separate into the cavity from top to bottom with the inner chamber of vibration screening disk body with lower filter, well cavity and lower cavity, be located all to be equipped with the material returned pipeline on the vibration screening disk body inner wall in each cavity, part or whole material returned pipeline and correspond and be equipped with the valve subassembly between the cavity. The utility model discloses great impurity can be in the epicoele of staying under the blocking of last filter, and less impurity then can enter into the cavity of resorption under the filtering action of filter down in, simultaneously, with the help of the shutoff of valve member to material returned pipeline with switch on, can make cereal can and the separation between the impurity provide abundant time.

Description

A vibrating screening machine for grain filtering

Technical field:

The utility model belongs to the technical field of vibrating screens, in particular to a vibrating screening machine for grain filtering.

Background technique:

The current grains are generally harvested by fully automatic harvesters, and the grains are dehulled in the fully automatic harvesters. In the process of harvesting and husking, part of the chaff and other impurities are often mixed in the grains. , so it is necessary to put these grains into the vibrating sieve for further vibrating filtration.

However, the current vibrating sieve can only filter out the impurities with larger particles from the grain, and the impurities with smaller particles will still be mixed in the grain, that is, the screening effect is poor, and the impurities cannot be effectively separated from the grain .

Invention content:

The purpose of this utility model is to provide a vibrating screening machine for grain filtration, which has a better screening effect. The larger impurities and smaller impurities are filtered by means of the upper and lower filter plates, so that the impurities can be separated from the grain. achieve effective separation.

The utility model is achieved in that:

A vibrating screening machine for grain filtering, comprising a vibrating motor and a vibrating screening disc driven by the vibrating motor. The upper filter plate and the lower filter plate of the hole, the filter hole aperture of the upper filter plate is larger than the filter hole aperture of the lower filter plate, and the upper filter plate and the lower filter plate separate the inner chamber of the vibrating screening disc body up and down into an upper chamber, a middle chamber, and a middle chamber. In the chamber and the lower chamber, the inner wall of the vibrating screening plate in each chamber is provided with a material return pipe communicating with the outside world, and a valve assembly is provided between part or all of the material return pipe and the corresponding chamber.

In the aforementioned vibratory screening machine for grain filtering, a valve assembly is provided between the upper chamber and the middle chamber and the corresponding return pipe respectively.

In the aforementioned vibration screening machine for grain filtration, the valve assembly includes a material withdrawal valve plate that can block or lead to the inner port of the material withdrawal pipeline, and one end of the material withdrawal valve plate is hinged in the vibratory screening disc body On the wall, the other end is a free end and is connected to the drive source through transmission, and the drive source drives the ejection valve plate to rotate.

In the aforementioned vibratory screening machine for grain filtration, the drive source is a drive cylinder arranged on the outer wall of the corresponding return pipe, and the telescopic end of the drive cylinder is hinged to the corresponding return valve plate through a hinge plate Transmission, the side wall of the vibrating screening disc is provided with a driving window, and the driving window is a transmission space for the hinge plate to push the return valve plate to rotate.

In the above-mentioned vibratory screening machine for grain filtration, the inner cavity of the vibratory screening disc body is in a circular structure, the material return valve plate is an arc-shaped plate, and its outer wall can be in contact with the vibratory screening disc body. fit the inner wall.

In the above-mentioned vibrating screening machine for grain filtering, it also includes a base directly below the vibrating screening disc body, and the vibrating screening disc body is flexibly connected to the base through several support springs uniformly distributed in the circumferential direction. The vibration motor is fixed on the base.

In the above-mentioned vibrating screening machine for grain filtering, upper positioning columns are evenly distributed around the outer edge of the bottom surface of the vibrating screening plate, and the top surface of the base is provided with one-to-one correspondence with the upper positioning columns. The lower positioning column, the two ends of the support spring are respectively inserted on the corresponding positioning column.

In the aforementioned vibration screening machine for grain filtration, the base has a cylindrical structure, the vibration motor is fixed on the inner hole wall of the base through a bracket, and the vibration end of the vibration motor is connected to the vibration Screen the underside of the pan.

Compared with the prior art, the outstanding advantages of the utility model are:

The utility model divides the inner cavity of the vibrating screening plate into upper, middle and lower chambers through the upper and lower filter plates, so that when the grain is poured from the opening of the vibrating screening plate, the larger impurities will be on the upper side of the vibrating screening plate. Blocked by the filter plate, it stays in the upper chamber, while the smaller impurities will enter the lower chamber under the filtering action of the lower filter plate, that is, the effective separation of the grain and impurities in the middle chamber; at the same time, with the help of the valve The blockage and conduction of the component to the return pipeline can provide sufficient time for the separation of grain energy and impurities.

Description of drawings:

Fig. 1 is an overall perspective view of the utility model;

Fig. 2 is an overall sectional view of the utility model.

In the figure: 1. Vibration motor; 2. Vibration screening plate; 3. Upper filter plate; 4. Lower filter plate; 5. Filter hole; 6. Upper chamber; 7. Middle chamber; 8. Lower chamber; 9. Material return pipe; 10. Material return valve plate; 11. Drive cylinder; 12. Hinge plate; 13. Drive window; 14. Base; 15. Support spring; 16. Upper positioning column; 17. Lower positioning column.

detailed description:

The utility model is further described below with specific embodiments, referring to Fig. 1-2:

A vibrating screening machine for grain filtering, comprising a vibrating motor 1 and a vibrating screening disc body 2 driven and vibrating by the vibrating motor 1, the inner cavity of the vibrating screening disc body 2 is provided with plate surfaces sequentially from top to bottom The upper filter plate 3 and the lower filter plate 4 with filter holes 5 are evenly distributed, the filter hole 5 aperture of the upper filter plate 3 is larger than the filter hole 5 aperture of the lower filter plate 4, and the upper filter plate 3 and the lower filter plate 4 will vibrate and filter The inner cavity of the disc body 2 is divided into an upper chamber 6, a middle chamber 7 and a lower chamber 8, and the inner wall of the vibrating screening disc body 2 in each chamber is provided with a return pipe 9 communicating with the outside world. Or a valve assembly is provided between all the material return pipelines 9 and the corresponding chambers.

That is, the utility model divides the inner cavity of the vibrating screening disc body 2 into upper, middle and lower chambers by the upper and lower filter plates 4, so that when the grain is poured from the mouth of the vibrating screening disc body 2, the larger Impurities will stay in the upper chamber 6 under the blocking of the upper filter plate 3, while smaller impurities will enter the lower chamber 8 under the filtering action of the lower filter plate 4, that is, the grains will be completely absorbed in the middle chamber 7. Effective separation from impurities; at the same time, the blockage and conduction of the return pipeline 9 by means of the valve assembly can provide sufficient time for the separation between grain energy and impurities.

In the present embodiment, in order to prevent the grains from entering the return pipe 9 of the upper chamber 6 together with larger impurities, and to prevent smaller impurities from entering the return pipe 9 of the middle chamber 7 together with the grains, A valve assembly is provided between the upper chamber 6 and the middle chamber 7 and the corresponding material return pipe 9 respectively. That is, when the grain is poured from the opening of the vibrating screening disc body 2, the valve assembly will block the corresponding material return pipe 9, and after the vibrating motor 1 drives the vibrating screening disc body 2 to vibrate for a certain period of time to ensure that the grain and impurities are separated, The valve assembly is connected to the corresponding return pipe 9 again, and the larger impurities in the upper chamber 6 and the grains in the middle chamber 7 enter the corresponding return pipe 9 under the vibration of the vibrating screening plate 2 , to achieve discharge.

Furthermore, one method that the valve assembly can adopt is: the valve assembly includes a valve plate that is vertically slidably connected to the vibrating screen body 2, and the valve plate is driven by the cylinder to move up and down to realize the control of the inner port of the return pipe 9. blocking or conducting. Of course, the valve assembly can also adopt other existing common structures.

In this embodiment, the specific structure adopted by the valve assembly is as follows: the valve assembly includes a material return valve plate 10 that can block or lead to the inner port of the material return pipeline 9, and one end of the material return valve plate 10 is hinged on On the inner wall of the vibrating screening disc body 2, the other end is a free end and is connected to the drive source through transmission, and the material return valve plate 10 is driven to rotate by the drive source.

Moreover, the drive source can be an electromagnet, which is the cylinder used in the drive source in this embodiment and its specific installation and transmission structure is: the drive source is a drive cylinder 11 arranged on the outer wall surface of the corresponding return pipe 9, The telescopic end of the drive cylinder 11 and the corresponding material return valve plate 10 are articulated and driven by the hinge plate 12. The side wall of the vibrating screening plate 2 is provided with a drive window 13, and the drive window 13 is for the hinge plate 12 to push. The transmission space for the return valve plate 10 to rotate.

Furthermore, in order to improve the sealing performance of the material return valve plate 10 blocking the inner port of the material return pipeline 9, the inner cavity of the vibrating screening disc body 2 has a circular structure, the material return valve plate 10 is an arc-shaped plate, and Its outer wall can be fitted with the inner wall of the vibrating screen body 2 .

In addition, in order to enable the vibrating motor 1 to effectively drive the vibrating screening disc body 2 to vibrate, it also includes a base 14 arranged directly below the vibrating screening disc body 2. Connected on the base 14, the vibration motor 1 is fixed on the base 14. And, the specific setting method of the support spring 15 is: the outer edge of the bottom surface of the vibrating screen body 2 is evenly distributed with upper positioning posts 16 in the circumferential direction, and the top surface of the base 14 is provided with one-to-one correspondence with the upper positioning posts 16. The lower positioning column 17, the two ends of the support spring 15 are respectively inserted on the corresponding positioning column.

Considering that the vibrating screen body 2 vibrates up and down to effectively separate impurities and grain between the upper and lower filter plates, so the base 14 has a cylindrical structure, and the vibration motor 1 is fixed on the base 14 by a bracket. On the wall of the inner hole, and the vibrating end of the vibrating motor 1 is connected to the bottom surface of the vibrating screen body 2 .

The above-described embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model, so: all equivalent changes made according to the shape, structure and principle of the present utility model should be covered. Within the protection scope of the present utility model.

Claims (8)

1. a vibratory screening machine for grain filtration, it is characterized in that: comprise vibrating motor (1) and the vibrating screening disc body (2) driven by vibrating motor (1) vibration, described vibrating screening disc body ( 2) The inner cavity of the upper filter plate (3) and the lower filter plate (4) with filter holes (5) evenly distributed on the plate surface are arranged in sequence from top to bottom, and the filter holes (5) of the upper filter plate (3) have a pore size The diameter of the filter hole (5) is greater than that of the lower filter plate (4), and the upper filter plate (3) and the lower filter plate (4) separate the inner cavity of the vibrating screening disc body (2) up and down into an upper chamber (6), In the middle chamber (7) and the lower chamber (8), the inner wall of the vibrating screen body (2) located in each chamber is provided with a return pipe (9) communicating with the outside world, and part or all of the return pipe ( 9) A valve assembly is provided between the corresponding chamber. 2. A vibration screening machine for grain filtration according to claim 1, characterized in that: between the upper chamber (6) and the middle chamber (7) and the corresponding return pipe (9) A valve assembly is provided. 3. A vibratory screening machine for grain filtration according to claim 1 or 2, characterized in that: the valve assembly includes a material return valve capable of blocking or leading to the inner port of the material return pipeline (9) Plate (10), one end of the ejector valve plate (10) is hinged on the inner wall of the vibrating screen body (2), the other end is a free end and is connected with the drive source, and the ejector valve plate (10) is driven to rotate by the drive source . 4. A vibratory screening machine for grain filtration according to claim 3, characterized in that: the drive source is a drive cylinder (11) arranged on the outer wall of the corresponding return pipe (9), and the drive cylinder The telescopic end of (11) and the corresponding ejection valve plate (10) are articulated and driven by a hinge plate (12), and a drive window (13) is provided on the side wall of the vibrating screen body (2), and the drive The window (13) is a transmission space for the hinge plate (12) to push the return valve plate (10) to rotate. 5. A vibrating screening machine for grain filtering according to claim 3, characterized in that: the inner cavity of the vibrating screening disc body (2) has a circular structure, and the material return valve plate (10) It is an arc plate, and its outer wall surface can fit with the inner wall surface of the vibrating screening disc body (2). 6. A kind of vibrating screening machine for grain filtering according to claim 1, characterized in that: it also includes a base (14) arranged directly below the vibrating screening disc body (2), the vibrating screening disc body ( 2) The vibration motor (1) is fixed on the base (14) by being flexibly connected to the base (14) through several support springs (15) evenly distributed in the circumferential direction. 7. A vibrating screening machine for grain filtering according to claim 6, characterized in that: the outer edge of the bottom surface of the vibrating screening disc body (2) is evenly distributed with upper positioning columns (16) in the peripheral direction, the A lower positioning post (17) corresponding to the upper positioning post (16) is provided on the top surface of the base (14), and the two ends of the support spring (15) are respectively inserted on the corresponding positioning posts. 8. A vibration screening machine for grain filtration according to claim 6 or 7, characterized in that: the base (14) is in a cylindrical structure, and the vibration motor (1) is fixed on the on the wall of the inner hole of the base (14), and the vibrating end of the vibrating motor (1) is connected to the bottom surface of the vibrating screen body (2).

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