CN111715519A

CN111715519A - Double-deck grain sieve separator

Info

Publication number: CN111715519A
Application number: CN202010749441.7A
Authority: CN
Inventors: 李祥
Original assignee: Jianhu Jinfeng Machinery Co ltd
Current assignee: Jianhu Jinfeng Machinery Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2020-09-29

Abstract

The invention relates to the field of agricultural equipment and discloses a double-layer grain screening machine which comprises a fixing frame, wherein a motor is fixedly installed at one end of the bottom of an inner cavity of the fixing frame, an air blower is fixedly installed at the other end of the bottom of the inner cavity of the fixing frame, a vibration trigger device is fixedly installed at one end of the middle of the inner cavity of the fixing frame, a feeding cabin is fixedly installed at one end of the top of the fixing frame, shaking hands are movably installed at two ends of two sides of the top of the inner cavity of the fixing frame, a shell is fixedly installed in the middle of the four shaking hands, a large impurity outlet is fixedly formed in one end of the top of the shell, a. According to the invention, through the upper screen mesh of the first layer and the lower screen mesh of the first layer, the effect that the material is not blocked at the front end of the first layer screen mesh is realized, the problem that the material directly enters the middle lower part of the second layer screen mesh to carry out secondary screening, so that the secondary screening effect is poor, the impurity content of the machine is high, and the efficiency of the equipment is improved.

Description

Double-deck grain sieve separator

Technical Field

The invention relates to the field of agricultural equipment, in particular to a double-layer grain screening machine.

Background

The grain screening machine is also called as a grain vibrating screen, and is mainly used for cleaning, selecting and grading the grains of crops such as wheat, rice, corn, soybean, cotton seeds, camellia and the like, so that the grain screening machine is a multi-purpose economic screening machine, the vibrating screen can effectively screen out impurities, soil blocks, scrap iron and defective seeds in the materials, and the existing grain screening machine is divided according to the layer number of the vibrating screen; the grain screening machine comprises a single-layer grain screening machine, a double-layer grain screening machine and a multi-layer grain screening machine, wherein the double-layer grain screening machine is the most widely applied grain screening machine.

The feeding cabin transports materials to a first-layer screen when the existing double-layer grain screening machine operates, the front end of the first-layer screen screens the materials to the front end of a second-layer screen and simultaneously screens away large impurities, the materials are all accumulated at the front end of the first-layer screen, the front end of the first-layer screen screens is mixed with grains due to various impurities, the mesh of the first-layer screen screens is blocked, so that the materials are primarily screened at the middle lower part of the first-layer screen, the materials are directly fed into the middle lower part of the second-layer screen screens to perform secondary screening, so that the impurity content of a machine with poor secondary screening effect is high, meanwhile, the phenomenon that large-grain grains or large-grain impurities contain grains is often caused under the condition that the adhesion impurities exist among the grains, the large-grain aggregates are directly removed as the large impurities, and the problem of waste is caused.

Disclosure of Invention

The invention provides a double-layer grain screening machine which has the advantage that material blockage cannot occur at the front end of a first-layer screen mesh, and solves the problems in the background technology.

The invention provides the following technical scheme: a double-layer grain screening machine comprises a fixed frame, wherein a motor is fixedly installed at one end of the bottom of an inner cavity of the fixed frame, an air blower is fixedly installed at the other end of the bottom of the inner cavity of the fixed frame, a vibration trigger device is fixedly installed at one end of the middle of the inner cavity of the fixed frame, a feeding cabin is fixedly installed at one end of the top of the fixed frame, hand rockers are movably installed at two ends of two sides of the top of the inner cavity of the fixed frame, a shell is fixedly installed in the middle of the four hand rockers, a large impurity outlet is fixedly formed in one end of the top of the shell, a discharging port is fixedly installed in the middle of one end of the shell, a belt clamping groove I is fixedly installed at the top end of a motor output shaft, a belt clamping groove II is fixedly installed in the middle of the, the other end of the belt I is connected to an air blower in a transmission manner, the belt II is movably sleeved in the belt clamping groove III, the other end of the belt II is connected to a vibration trigger device in a transmission manner, a first-layer upper screen is fixedly arranged at the upper end of the inner cavity of the shell, a screen mesh I is arranged at the top of the first-layer upper screen, support frames are fixedly arranged at two ends of the front top of the fixing frame, a first-layer lower screen is fixedly arranged in the middle of the two support frames, a fixed table is fixedly arranged in the middle of two sides of the top of the inner cavity of the fixing frame, a threaded rod is movably arranged in the middle of the two fixed tables, hanging tables are movably sleeved at two sides of the periphery of the threaded rod, a spring is movably sleeved at one end of the periphery of the fixed table, a friction plate is fixedly arranged at, the periphery of the driven gear is meshed with a half gear, a belt III is sleeved in the belt clamping groove I in a movable mode, the other end of the belt III is connected to the half gear in a transmission mode, and a rubber friction block is fixedly mounted at the top of the friction plate.

Carefully, the first-layer lower screen comprises a screen body, screen holes II are uniformly formed in the top of the screen body, and the top of the screen body is fixedly mounted at the lower ends of the screen holes II.

Carefully selecting, the difference in height between the first layer lower screen and the first layer upper screen is three millimeters, the height is two millimeters, the first layer lower screen and the first layer upper screen are consistent in width, and the sieve mesh I and the sieve mesh II are in staggered distribution.

Carefully selecting, the gear ratio of the half gear to the driven gear is as follows: the part of the half gear containing the tooth openings accounts for one fourth of the periphery of the half gear.

Carefully, the one end fixed connection of spring is on one side of threaded rod one end fixed station, the maximum distance of spring compression is five centimetres, and the maximum distance self length of spring compression is belt draw-in groove I centimetres.

Preferably, the distance between two of said suspension stations is eight centimetres less than the distance between two of said fixed stations.

The invention has the following beneficial effects:

1. according to the invention, through the upper screen mesh of the first layer and the lower screen mesh of the first layer, the effect that the front end of the first layer screen mesh cannot be blocked is realized, the problem that the secondary screening effect is poor due to the fact that materials directly enter the middle lower part of the second layer screen mesh to carry out secondary screening is solved, and the impurity content of a machine is high, so that the high efficiency and the rapidity of the equipment are improved.

2. According to the invention, the threaded rod drives the friction plate to swing back and forth, so that the effect of kneading off large-particle aggregates to separate grains is realized, the problem that the large-particle aggregates are directly removed as large impurities to cause waste due to the phenomenon that large-particle grains or large-particle impurities contain grains are frequently generated under the condition that the grains are adhered with impurities is solved, and the precision and the high efficiency of equipment are improved.

Drawings

FIG. 1 is a schematic structural view of a double-layer grain screening machine according to the present invention;

FIG. 2 is a schematic view of a kneading structure according to the present invention;

fig. 3 is a schematic diagram of a card discharging structure according to the present invention.

In the figure: 1. a fixed mount; 2. a motor; 3. a belt clamping groove I; 4. a belt clamp groove II; 5. a belt clamping groove III; 6. a blower; 7. a vibration trigger device; 8. a belt I; 9. a belt II; 10. a feeding compartment; 11. c, shaking the hand; 12. a housing; 13. a large impurity outlet; 14. a screen mesh is arranged on the first layer; 15. sieve pores I; 16. a support frame; 17. a first layer of lower screen mesh; 171. a screen body; 172. sieve pore II; 173. a top block; 18. a fixed table; 19. a spring; 20. a threaded rod; 21. a hanging table; 22. a friction plate; 23. a driven gear; 24. a half gear; 25. a rubber friction block; 26. a discharge port; 27. belt III.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a double-layer grain screening machine comprises a fixed frame 1, a motor 2 is fixedly installed at one end of the bottom of an inner cavity of the fixed frame 1, an air blower 6 is fixedly installed at the other end of the bottom of the inner cavity of the fixed frame 1, a vibration trigger device 7 is fixedly installed at one end of the middle of the inner cavity of the fixed frame 1, a feeding cabin 10 is fixedly installed at one end of the top of the fixed frame 1, shaking handles 11 are movably installed at two ends of the two sides of the top of the inner cavity of the fixed frame 1, a shell 12 is fixedly installed in the middle of the four shaking handles 11, a large impurity outlet 13 is fixedly arranged at one end of the top of the shell 12, a discharge hole 26 is fixedly installed in the middle of one end of the shell 12, a belt clamping groove I3 is fixedly installed at the top end of an output shaft of the motor 2, a belt clamping groove II4 is fixedly, the other end of the belt I8 is connected to the air blower 6 in a transmission manner, the belt II9 is movably sleeved in the belt clamping groove III5, the other end of the belt II9 is connected to the vibration trigger device 7 in a transmission manner, the upper end of the inner cavity of the shell 12 is fixedly provided with the first-layer upper screen 14, the top of the first-layer upper screen 14 is provided with a screen hole I15, two ends of the front top of the fixed frame 1 are fixedly provided with the support frames 16, the middle of the two support frames 16 is fixedly provided with the first-layer lower screen 17, the height difference between the first-layer lower screen 17 and the first-layer upper screen 14 is three millimeters, the height of the 173 is two millimeters, the widths of the first-layer lower screen 17 and the first-layer upper screen 14 are consistent, the screen holes I15 and the screen hole II172 are distributed in a staggered manner, through the first-layer upper screen 14 and the first-layer lower screen 17, the effect that the material can not be blocked at the front end of the first-layer screen can be realized, the problem, the high-efficiency rapidity of the equipment is improved, the first-layer lower screen 17 comprises a screen body 171, screen holes II172 are uniformly formed in the top of the screen body 171, the top of the screen body 171 is positioned at the lower ends of the screen holes II172 and fixedly provided with 173, the effect of removing sundries clamped at the front end of the first-layer upper screen 14 after the materials are firstly fed is realized through the screen holes II172 and 173 on the first-layer lower screen 17, the problem that the secondary screening effect is poor due to the fact that the materials directly enter the middle lower part of the second-layer screen to carry out secondary screening is solved, the impurity content of the machine is high, the high-efficiency rapidity of the equipment is improved, fixed tables 18 are fixedly arranged in the middles of two sides of the top of the inner cavity of the fixed frame 1, threaded rods 20 are movably arranged in the middles of the two fixed tables 18, hanging tables 21 are movably sleeved on two sides of the periphery of the threaded rods 20, springs 19 are movably sleeved on one end of the periphery, the effect of improving the compression distance for the spring 19 to push the suspension table 21 is achieved through the distance difference between the suspension table 21 and the fixed table 18, the problem that under the condition that adhesive impurities exist between grains, large grains or large grain impurities containing grains often occur, so that large grain aggregates are directly taken as large impurities to be removed and waste is caused is solved, the precision and the high efficiency of equipment are improved, the friction plate 22 is fixedly installed at the bottom of the two suspension tables 21, the driven gear 23 is fixedly installed at the other side of the fixed table 18, the periphery of the driven gear 23 is meshed with the half gear 24, the gear ratio of the half gear 24 to the driven gear 23 is 2: 1, the part of the half gear 24 containing a tooth opening accounts for one fourth of the periphery of the half gear 24, and through the gear ratio of the half gear 24 to the driven gear 23 and the tooth opening difference of the half gear 24, the effect that the half gear 24 drives the driven gear 23 to rotate for a circle and stop for a period of time to facilitate the spring 19 to push, the problem that the driven gear 23 continuously rotates the suspension table 21 and cannot move back and forth is solved, the precision of equipment is improved, the belt III27 is movably sleeved in the belt clamping groove I3, the other end of the belt III27 is in transmission connection with the half gear 24, the rubber friction block 25 is fixedly installed at the top of the friction plate 22, one end of the spring 19 is fixedly connected to one side of the fixing table 18 at one end of the threaded rod 20, the maximum compression distance of the spring 19 is five centimeters, the maximum compression distance of the spring 19 is the belt clamping groove I3 centimeters, the suspension table 21 can be pushed to move after the spring 19 is compressed for five centimeters, the effect that the rubber friction block 25 rubs aggregates in a back and forth friction mode through the cooperation of the spring 19 and the driven gear 23 is achieved, the problem that large-grain aggregates are directly removed as large impurities and waste due to the fact that the phenomenon that the large-grain aggregates or the large-grain impurities contain the grains are frequently generated under the condition that the adhesion impurities, the precision and the efficiency of the equipment are improved.

The working principle is as follows: when the material crusher is used, a material enters the front end of the first-layer upper screen 14 through the feeding cabin 10, gravity enters the screen hole I15 at the front end of the first-layer upper screen 14, the motor 2 drives the vibration trigger device 7 to rotate through the belt II9, the vibration trigger device 7 drives the shell 12 to reciprocate back and forth, the shell 12 retreats to enable the first-layer upper screen 14 to drive the screen hole I15 to coincide with the staggered screen hole II172, the overlapped material of the screen hole I15 and the screen hole II172 smoothly falls into the two-layer screen, when impurities are clamped in the screen hole I15, the shell 12 advances to push the impurities to touch the 173, the impurities are extruded upwards and pushed forwards through the 173, when a large impurity aggregate passes through the bottom of the friction plate 22, the half gear 24 drives the driven gear 23 to rotate the driven gear 23 to drive the threaded rod 20 to rotate, the threaded rod 20 pushes the suspension table 21 to move towards the other side, the suspension table 21 moves the compression spring 19, and the suspension table 21 drives the rubber friction block 25 at the bottom, after the teeth of the half gear 24 are engaged, the spring 19 starts to release to push the suspension table 21 to the other side for continuous kneading, so that the rubber friction block 25 can rub the aggregate in a reciprocating manner.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the invention, the filling pattern is only used for distinguishing the layers and is not limited at all.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a double-deck grain sieve separator, includes mount (1), the one end fixed mounting of mount (1) inner chamber bottom has motor (2), the other end fixed mounting of mount (1) inner chamber bottom has air-blower (6), the one end fixed mounting at mount (1) inner chamber middle part has vibration trigger device (7), the one end fixed mounting at mount (1) top has feeding cabin (10), the equal movable mounting in both ends of mount (1) inner chamber top both sides has crank (11), four the middle fixed mounting of crank (11) has casing (12), the one end at casing (12) top is fixed has seted up big miscellaneous export (13), the middle part fixed mounting of casing (12) one end has discharge gate (26), its characterized in that: the belt conveyor is characterized in that a belt clamping groove I (3) is fixedly installed at the top end of an output shaft of the motor (2), a belt clamping groove II (4) is fixedly installed at the middle of the output shaft of the motor (2), a belt clamping groove III (5) is fixedly installed at the bottom end of the output shaft of the motor (2), a belt I (8) is sleeved on the belt clamping groove II (4) in the inner part, the other end of the belt I (8) is connected to the air blower (6) in a transmission manner, a belt II (9) is sleeved on the belt clamping groove III (5) in the inner part, the other end of the belt II (9) is connected to the vibration trigger device (7) in a transmission manner, a first-layer upper screen (14) is fixedly installed at the upper end of an inner cavity of the shell (12), a screen mesh I (15) is arranged at the top of the first-layer upper screen (14, a first layer of lower screen mesh (17) is fixedly arranged between the two supporting frames (16), the middle parts of the two sides of the top of the inner cavity of the fixed mount (1) are fixedly provided with fixed platforms (18), the middle parts of the two fixed platforms (18) are movably provided with threaded rods (20), the two sides of the periphery of the threaded rod (20) are movably sleeved with hanging tables (21), one end of the periphery of the fixed table (18) is movably sleeved with a spring (19), the bottoms of the two hanging tables (21) are fixedly provided with friction plates (22), a driven gear (23) is fixedly arranged on the other side of the fixed platform (18), a half gear (24) is meshed with the periphery of the driven gear (23), a belt III (27) is movably sleeved in the belt clamping groove I (3), and the other end of the belt III (27) is connected with the half gear (24) in a transmission way, and a rubber friction block (25) is fixedly arranged at the top of the friction plate (22).

2. The double-deck grain screening machine of claim 1, characterized in that: first floor screen cloth (17) are including screen mesh body (171), and sieve mesh II (172) have evenly been seted up at the top of screen mesh body (171), the lower extreme fixed mounting that the top of screen mesh body (171) is located sieve mesh II (172) has (173).

3. The double-deck grain screening machine of claim 2, characterized in that: the difference in height between screen cloth (17) and first layer upper screen cloth (14) is three millimeters under the first layer, the height of (173) is two millimeters, screen cloth (17) are unanimous with the width of first layer upper screen cloth (14) under the first layer, sieve mesh I (15) are the dislocation distribution with sieve mesh II (172).

4. The double-deck grain screening machine of claim 1, characterized in that: the gear ratio of the half gear (24) to the driven gear (23) is 2: 1, and the part of the half gear (24) containing the tooth openings accounts for one fourth of the periphery of the half gear.

5. The double-deck grain screening machine of claim 1, characterized in that: one end fixed connection of spring (19) is on one side of threaded rod (20) one end fixed station (18), the maximum distance of spring (19) compression is five centimetres, and the maximum distance self length of spring (19) compression is belt draw-in groove I (3) centimetres.

6. The double-deck grain screening machine of claim 1, characterized in that: the distance between the two suspension platforms (21) is eight centimeters less than the distance between the two fixed platforms (18).