CN113857027A

CN113857027A - Grain sieve separator

Info

Publication number: CN113857027A
Application number: CN202111193482.3A
Authority: CN
Inventors: 宋珍清
Original assignee: Shuangpai Fengtai Agricultural Machinery Equipment Co ltd
Current assignee: Shuangpai Fengtai Agricultural Machinery Equipment Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2021-12-31

Abstract

The invention discloses a grain screening machine, which comprises a machine body, a screen body, a feeding channel and a discharging channel, wherein the screen body comprises a rotating shaft and a cylindrical screen, the rotating shaft penetrates through a through hole formed in the center of a circular iron plate arranged at two ends of a screen cylinder and is connected with the screen, a plurality of small screens are further arranged on the inner wall of the cylindrical screen, one end of the screen body is provided with a screen feeding port and a screen feeding port baffle which are matched with the feeding channel, the other end of the screen body is provided with a screen discharging port and a screen discharging port baffle which are matched with the discharging channel, the screen is in a spiral cylindrical shape, a solid metal plate is arranged on the inner wall of the screen, the small screens are welded on the solid metal plate, the small screens are uniformly distributed in the spiral direction of the screen, the shapes of the small screens are the same, the sizes of the small screens are the same, and the sizes of the screen holes are the same. According to the invention, the efficiency and effect of cleaning grains can be effectively improved by arranging the spiral cylindrical screen and additionally arranging the small screen on the inner wall of the screen.

Description

Grain sieve separator

Technical Field

The invention relates to the field of grain processing equipment, in particular to a grain screening machine.

Background

Grain and grain can be mixed with a lot of weeds, straws, stones, dust and other impurities when being harvested, and the impurities need to be cleaned before grain processing and warehousing, so that the cleanliness of the grain is improved, the quality of the grain is improved, the grain and grain can be conveniently stored, the grain and grain are prevented from going bad due to the impurities, and the storage period of the grain and grain is prolonged. At present, most of grain screening machines are plane screen meshes, and the characteristics of the non-closed or semi-closed screen meshes lead to the fact that part of grains are not screened, so that the effect of grain cleaning is reduced.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the grain screening effect is poor, and semi-closed or non-closed grain screening machines have the risk of grain cleaning omission.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a grain sieve separator, which comprises a bod, the screen frame, feedstock channel and discharging channel, the screen frame includes the screen cavity, pivot and cylindric screen cloth, the through-hole that the center that the pivot passed the circular iron plate that the both ends of screen cloth drum were established set up is connected with the screen cloth, cylindric screen cloth inner wall still is equipped with a plurality of little screen cloths, screen frame one end be equipped with feedstock channel assorted screen cloth pan feeding mouth and screen cloth pan feeding mouth baffle, one end be equipped with discharging channel assorted screen cloth discharge gate and screen cloth discharge gate baffle in addition. The cylindrical screen is closed, so that grains to be screened are poured into the screen from the feeding port by opening the baffle at the feeding port, then the baffle at the feeding port is closed, and the cylindrical screen for cleaning and screening is completely closed, so that the condition that grains are missed by a common screen can be avoided.

Preferably, the screen is in the shape of a spiral cylinder; the cylindric screen cloth of spiral is more outstanding a bit than the effect of general cylindric screen cloth to screening grain, and its arch and the sunken grain that can the required clearance screening of evenly distributed to a certain extent that sets up in inside improves the efficiency of screening grain.

Preferably, a solid metal plate is arranged on the inner wall of the screen, and the small screen is welded on the solid metal plate; the welding of little screen cloth can be more firm on solid metal sheet to prevent to be strikeed by the grain of screening in the process of high-speed propaganda and lead to the damage.

Preferably, the small screens are the same in shape, size and screen hole size and are uniformly distributed in the spiral direction of the screens;

preferably, the circular iron plate is provided with a vibration component; the vibrating component is a main component which plays a role of vibrating the screen to screen the grains;

preferably, a vertical track is arranged on the machine body, a rotating device is arranged in the track, the rotating device can be vertically adjusted on the machine body, and the screen body is connected with the rotating device through a rotating shaft and is connected with the machine body;

preferably, the rotating shaft is provided with threads and is in threaded connection with a rotating device on the machine body; the purpose is to conveniently dismantle and replace the screen meshes with different apertures, and adapt to different grain screening machines to meet the selection requirements

Preferably, a first signal controller for controlling the opening and closing of the material inlet baffle is arranged at the material inlet of the screen;

preferably, a second signal controller for controlling the opening and closing of the baffle plate at the discharge port is arranged at the discharge port of the screen;

preferably, the screen body is arranged in an inclined mode, and the inclined angle of the screen body is 1-3 degrees. When screen frame inclination is 1 degree, grain in the screen frame can be slowly removed to the bottom along the direction of spiral, the screening this moment, grain distributes comparatively evenly, screen frame inclination is when 3 degrees, the screening this moment, grain distributes a small part on upper portion, most are in middle part and lower part, it is not of uniform size to be more fit for the screening, the grain that the attachment differs, if screen frame inclination is less than 1 degree, grain is too slow to the bottom removal, the effect is not obvious, if screen frame inclination is greater than 3 degrees, the screen frame of slope this moment can cause most grain to concentrate on the bottom of screen frame, be unfavorable for the clearance screening.

The invention has the following beneficial effects:

1. the closed cylindrical screen mesh adopted by the invention can effectively prevent grains from escaping from a screening area without screening.

2. The inner wall small screen designed by the invention can effectively improve the grain cleaning efficiency.

3. The inclined spiral cylindrical screen designed by the invention can improve the effect of cleaning grains.

Drawings

FIG. 1 is a schematic view of a grain screening machine according to embodiment 1;

the above reference numerals: 1. a body; 2. a screen body; 3. a feeding port; 4. a discharge port; 5. a rotating shaft; 6. screening a screen; 7. a small screen; 8. a feed inlet baffle; 9. a discharge port baffle; 10. a first signal controller; 11. a second signal controller; 12. a rotating device; 13. and vibrating the assembly.

Detailed Description

The invention is further illustrated with reference to the following figures and examples, which are not intended to limit the scope of the invention in any way.

Example 1

As shown in figure 1, a grain screening machine, including the body 1, the screen 2, feed channel and discharge channel, the screen includes the screen cavity, the spindle 5 and the cylindrical screen 6, the spindle 5 crosses the through hole that the centre of the round iron plate that the screen 6 drum is set up sets up and connects with screen 6, the cylindrical screen 6 inner wall also has several small screens 7, one end of screen 6 has screen 6 feed inlet and screen 6 feed inlet baffle 8 that matches with feed channel, another end has screen 6 discharge gate and screen 6 discharge gate baffle 9 that matches with discharge channel, screen 6 is the spiral drum, there are solid metal plates on the screen 6 inner wall, the small screen 7 welds on the solid metal plate, the small screen 7 is according to the screen 6 spiral direction uniform distribution, each shape of the small screen 7 is the same, the size is equal, the mesh size is the same, there is a rotary device on the body 1, the screen frame 2 is connected rotary device 12 through pivot 5 and is connected with organism 1, be equipped with the screw thread on the pivot 5, 12 threaded connection of rotary device on pivot 5 and the organism 1, 6 pan feeding mouths of screen cloth department is equipped with the first signal controller 10 of 8 switches of control pan feeding mouth baffle, 6 discharge mouth department of screen cloth is equipped with the second signal controller 11 of 9 switches of control discharge gate baffle, 2 slopes of screen frame set up, its inclination is 1~3 degrees, in this embodiment, the inclination of screen frame 2 is 1 degree.

The working principle and the method of the grain screening machine of the invention are as follows:

the operator firstly connects the required screen body 2 with a rotating device 12 arranged on the machine body 1 through a threaded rotating shaft 5, sets the inclination angle to 1 degree, then controls a first signal controller 10, opens a feed inlet baffle 8, pours the grain to be screened into the screen body 2 from the feed inlet, the grain is uniformly distributed in a screen 6 with the inclination of the screen body 2 being 1 degree, then closes the feed inlet baffle 8, and then opens the device;

after the device of the invention is started, the grain in the screen 6 is influenced by gravity and rotating force and begins to be cleaned and screened, simultaneously the vibration component 13 is opened, the vibration component 13 participates in the screening working procedure of the spiral cylindrical screen 6 in the rotating state to carry out vibration cleaning on the grain in the screen 6, the small screen 7 welded on the solid metal plate on the inner wall of the screen 6 also participates in the grain screening process, the small screen 7 plays a role in stirring and secondary grain screening in the screening of the spiral cylindrical screen 6 in the rotating state, because the aperture of the screen 6 is smaller than the size of the grain, the screened grain still exists in the spiral cylindrical screen 6, and the soil, dust or grain waste shells and other sundries are screened out of the screen cavity through the discharging channel after the screen 6 is screened, then the second signal controller 11 is controlled to open the discharging port baffle 9, the grains after being screened and cleaned are discharged out of the screen 6 through the discharge port and then discharged out of the screen cavity through the discharge channel, and the working personnel can respectively collect and arrange sundries and the cleaned grains.

Example 2

Example 2 is different from example 1 in that the inclination angle of the screen body 2 is 3 degrees; and the height of the rotating devices 12 at both sides is adjusted during the screening process so as to adjust the inclination angle of the screen body 2. When the inclination angle of the screen body 2 is 3 degrees, the grains are screened at the moment and distributed on a small part of the upper part and a large part of the middle part and the lower part.

After the device is started, grains can be cleaned and screened under the influence of gravity and rotating force in the screen 6, small parts of the grains are distributed on the upper part, most of the grains are distributed on the middle part and the lower part, the efficiency of the most of the grains distributed on the middle part and the lower part participating in cleaning and screening is not high, the height of the rotating device 12 is adjusted on two sides at the moment, the inclination direction of the screen body 2 is changed, most of the grains on the middle part and the lower part fall into the upper screen 6 under the influence of gravity to continue to participate in cleaning and screening work, the vibrating component 13 is opened at the same time, the vibrating component 13 participates in the screening working procedure of the spiral cylindrical screen 6 in the rotating state to perform vibration and cleaning on the grains in the screen 6, the small screen 7 welded on the solid metal plate on the inner wall of the screen 6 also participates in the selection process of the grain screening machine, the small screen 7 plays a role in stirring and secondarily screening the grains in the screening of the spiral cylindrical screen 6 in the rotating state, because the aperture of the screen 6 is smaller than the size of the grain, the screened grain still exists in the spiral cylindrical screen 6, the impurities such as soil, dust or grain waste shells are screened out of the screen 6 and then discharged out of the screen cavity through the discharging channel, then the second signal controller 11 is controlled, the discharging port baffle 9 is opened, the screened and cleaned grain is discharged out of the screen 6 through the discharging port and then discharged out of the screen cavity through the discharging channel, and the working personnel can respectively collect the sorted impurities and the cleaned grain.

The description and applications of this invention are illustrative, and are not intended to limit the scope of the invention to the particular embodiments disclosed. Variations and modifications of the embodiments disclosed herein are possible, and practical alternatives to and equivalents of the various components of the embodiments are known to those of ordinary skill in the art. It will be clear to those skilled in the art that the present invention may be embodied in other forms, structures, arrangements, proportions, and with other elements, materials, and components, without departing from the spirit or essential characteristics thereof. Other variations and modifications of the embodiments disclosed herein may be made without departing from the spirit or essential characteristics of the invention.

Claims

1. The utility model provides a grain sieve separator, includes organism, screen frame, feedstock channel and discharging channel, its characterized in that: the screen body comprises a screen cavity, a rotating shaft and a cylindrical screen, wherein the rotating shaft penetrates through a through hole formed in the center of a circular iron plate arranged at two ends of a screen cylinder to be connected with the screen, a plurality of small screens are further arranged on the inner wall of the cylindrical screen, a screen feeding port and a screen feeding port baffle matched with the feeding channel are arranged at one end of the screen body, and a screen discharging port baffle matched with the discharging channel are arranged at the other end of the screen body.

2. The grain screening machine of claim 1, wherein: the screen is in the shape of a spiral cylinder.

3. The grain screening machine of claim 2, wherein: and a solid metal plate is arranged on the inner wall of the screen, and the small screen is welded on the solid metal plate.

4. The grain screening machine of claim 3, wherein: each shape of the small screen is the same, the sizes are the same, the sizes of the screen holes are the same, and the small screen is uniformly distributed in the spiral direction of the screen.

5. The grain screening machine of claim 1, wherein: and the circular iron plate is provided with a vibration assembly.

6. The grain screening machine of claim 1, wherein: the machine body is provided with a vertical track, a rotating device is arranged in the track and can be vertically adjusted on the machine body, and the screen body is connected with the rotating device through a rotating shaft and is connected with the machine body.

7. The grain screening machine of claim 6, wherein the rotating shaft is provided with threads and is in threaded connection with a rotating device on the machine body.

8. The grain screening machine of claim 1, wherein: a first signal controller for controlling the opening and closing of the material inlet baffle is arranged at the material inlet of the screen.

9. The grain screening machine of claim 1, wherein: and a second signal controller for controlling the opening and closing of the baffle of the discharge port is arranged at the discharge port of the screen.

10. The grain screening machine of claim 1, wherein: the screen frame slope sets up, and its inclination is 1~3 degrees.