CN217722092U

CN217722092U - Buckwheat threshing and separating device

Info

Publication number: CN217722092U
Application number: CN202222013781.0U
Authority: CN
Inventors: 张卫国; 王淳; 张优; 冯松科; 高金锋; 杨福增; 党小选
Original assignee: Northwest A&F University
Current assignee: Northwest A&F University
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-11-04
Anticipated expiration: 2032-08-02

Abstract

The invention discloses a buckwheat threshing and separating device, which comprises a threshing mechanism and a separating mechanism, wherein the threshing mechanism comprises a threshing mechanism body and a separating mechanism body; the threshing mechanism comprises: the threshing mechanism comprises a motor I, a base, a motor belt wheel, a belt wheel I, a belt wheel II, an eccentric belt wheel, a V-shaped belt I, a V-shaped belt II, a fan-shaped flywheel, a threshing press plate, a hinged support I, a shaft II, a connecting rod I, a connecting rod II and a fixing rod; the threshing mechanism rotates through a motor, power is transmitted to an eccentric belt wheel with a fan-shaped flywheel through belt transmission, and a threshing press plate is driven to move up and down under the action of deviation of a mass center to hit buckwheat, impact and rub the buckwheat to thresh. The separation mechanism includes: the device comprises a primary separating screen, a secondary separating screen, a chain wheel I, a chain wheel II, a chain, a motor II, a rack, a screen shaft, a hinged support II, a crank connecting rod, a pin shaft and a vibrating spring; the primary separating screen is fixed on the frame; the second-stage separation sieve drives the crank connecting rod to rotate through the motor II and chain transmission, and grain vibration separation is achieved. The device has the advantages of simple structure, high efficiency, time saving, labor saving and the like.

Description

Buckwheat threshing and separating device

Technical Field

The utility model belongs to the field of threshing and separating machinery in the field of agricultural machinery, in particular to a device for threshing and separating buckwheat.

Background

Buckwheat is also called Wumai, triangular, jingchang grass, pseudo grain crop, and belongs to one of Polygonaceae crops. Buckwheat is internationally recognized as a coarse cereal economic crop used as both medicine and food because of its good nutritional ingredients, high medicinal value and outstanding health care function. Along with the continuous improvement of living standard, the consciousness of dietary nutrition and healthy diet of people is gradually strengthened, so that the demand of buckwheat in markets at home and abroad is increased rapidly. Buckwheat is widely planted in China, and most of the buckwheat is planted in barren mountains and hills where large crops such as wheat, rice, corn and the like cannot be planted due to the characteristics of cold resistance, drought resistance, barren tolerance, low requirement on soil and the like. Buckwheat has the characteristics of large grass-grain ratio, extremely inconsistent mature periods of seeds of the same plant, extremely easy falling of the mature seeds and the like, so that the mechanized harvesting is difficult. At present, most of areas such as northern Shaanxi, shanxi, southwest and the like adopt manual harvesting, and in order to reduce the loss rate of grains, two-section harvesting is mostly adopted (namely when the buckwheat is not completely mature, has high water content and is not easy to fall off, the buckwheat is aired in a bale cutting mode to be later mature, and then the buckwheat is threshed by beating and impacting a transmission farm tool- cangue). The traditional mode of beating buckwheat by using cangues to thresh has low working efficiency and high labor intensity, and needs further separation operation, so that the time and the labor are consumed, and the threshing effect is not ideal. To solve the problem, the utility model provides a buckwheat threshing and separating device.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve present manual work and use cangue to hit and beat the buckwheat and thresh, inefficiency, artifical intensity is big, consuming time power scheduling problem, and the buckwheat that research and development threshed separator.

In order to realize the purpose, the technical scheme of the utility model is that:

the core mechanism of the buckwheat threshing and separating device comprises a threshing mechanism and a separating mechanism which are matched with each other to finish the operation;

the threshing mechanism comprises: the threshing mechanism comprises a motor I, a base, a motor belt wheel, a belt wheel I, a belt wheel II, an eccentric belt wheel, a V-shaped belt I, a V-shaped belt II, a fan-shaped flywheel, a threshing press plate, a hinged support I, a shaft II, a connecting rod I, a connecting rod II and a fixing rod; the motor I is fixedly connected with the base through a bolt; the motor belt wheel key is fixedly connected to an output shaft of the motor I; the hinged support I is fixed on the base through bolts; the shaft I penetrates through the hinged supports I, and the hole shaft is connected and fixed to the hinged supports I on the two sides in a clearance fit manner; the belt wheel I and the belt wheel II are mounted on the shaft I through key connection; the V-shaped belt I is arranged on the motor belt wheel and the belt wheel I; one end of the connecting rod I is hinged to the shaft I; one end is hinged with the shaft II; one end of the connecting rod II is hinged to the shaft II, and the other end of the connecting rod II is connected with the threshing press plate; the eccentric belt wheel is fixedly connected to the shaft II through a key; the fan-shaped flywheel is arranged on the eccentric belt wheel; the V-shaped belt II is arranged on the belt pulley II and the eccentric belt pulley; one end of the fixed rod is connected with the connecting rod I, and the other end of the fixed rod is connected with the connecting rod II;

the separation mechanism includes: the device comprises a primary separating screen, a secondary separating screen, a chain wheel I, a chain wheel II, a chain, a motor II, a rack, a screen shaft, a hinged support II, a crank connecting rod, a pin shaft and a vibrating spring; the primary separating screen is fixed at the top end of the frame; vibrating springs are suspended at the left two corners of the secondary separation screen; the right side penetrates through the screen shaft; two ends of the screen shaft are respectively hinged with a crank connecting rod; one end of the crank connecting rod is hinged with the screen shaft, and the other end of the crank connecting rod is hinged with the pin shaft; the hinged support II is welded on the rack; the pin shaft is hinged with the hinged support II; the chain wheel I is fixedly connected to the pin shaft through a key; the chain wheel II is fixed on an output shaft of the motor II; the chain is arranged on the chain wheel I and the chain wheel II; one end of the vibrating spring is connected with the rack, and the other end of the vibrating spring is hung on the secondary separating screen.

One side of an eccentric belt wheel of the buckwheat threshing and separating device is milled with three holes; the fan-shaped flywheel is welded on one side without the milled hole, and the position of the gravity center is changed in such a way, so that the threshing press plate can vibrate up and down, and the purposes of impacting, rubbing and vibrating threshing are achieved for the buckwheat grain paving; the hole shape of the first-stage separation screen is rectangular, and the shape and the size are 30mm multiplied by 50mm; the hole shape of second grade separation screen cloth is circular, and aperture radius is 5mm.

And (3) gain effect:

1. the utility model has the advantages of simple structure, easily manufacturing satisfies the work of threshing of buckwheat, labour saving and time saving.

Drawings

FIG. 1 is a schematic view of the overall structure of a buckwheat threshing and separating device;

FIG. 2 is a schematic view of a left side of a separating mechanism of a buckwheat threshing and separating device;

FIG. 3 is a schematic view of a right side part of a separating mechanism of the buckwheat threshing and separating device;

in the figure: 1. a motor I; 2. a base; 3. a belt pulley II; 4. a connecting rod I; 5.V belt ii; 6. an eccentric pulley; 7. a shaft II; 8. a sector pulley; 9. a connecting rod II; 10. a first-stage separation screen; 11. a secondary separation screen; 12. a screen shaft; 13. a hinged support II; 14. a crank connecting rod; 15. a pin shaft; 16. a frame; 17. a chain; 18. a motor II; 19. a threshing press plate; 20. fixing the rod; 21. a shaft I; 22. a vibration spring; 23. a free bearing I; 24. a motor pulley; 25.V belt I; 26. a belt wheel I; 27. a chain wheel I; 28. and a chain wheel II.

Detailed Description

The technical scheme of the embodiment of the invention is clear with the attached drawings and the detailed implementation; in the following description, numerous details are set forth in order to provide a thorough understanding of the present invention.

A buckwheat threshing and separating device mainly comprises a core mechanism, a threshing mechanism and a separating mechanism;

the threshing mechanism comprises: the threshing mechanism comprises a motor I (1), a base (2), a motor belt wheel (24), a belt wheel I (26), a belt wheel II (3), an eccentric belt wheel (6), a V-shaped belt I (25), a V-shaped belt II (5), a fan-shaped flywheel (8), a threshing press plate (19), a hinged support I (23), a shaft I (21), a shaft II (7), a connecting rod I (4), a connecting rod II (9) and a fixing rod (20); the motor I (1) is fixedly connected to the base (2) through bolts; the motor belt wheel (24) is fixedly connected to an output shaft of the motor I (1) in a key mode; the hinged support I (23) is fixedly connected to the base (2) through bolts; the shaft I (21) penetrates through the hinged support I (23), and the hole shaft is connected and fixed to the hinged supports I (23) on the two sides in a clearance fit manner; the belt wheel I (26) and the belt wheel II (3) are mounted on the shaft I (21) through key connection; the V-shaped belt I (25) is arranged on a motor belt wheel (24) and a belt wheel I (26); one end of the connecting rod I (4) is hinged to the shaft I (21); one end is hinged to the shaft II (7); one end of the connecting rod II (9) is hinged to the shaft II (7), and the other end of the connecting rod II is connected with the threshing press plate (19); the eccentric belt wheel (6) is fixedly connected to the shaft II (7) through a key; the fan-shaped flywheel (8) is arranged on the eccentric belt wheel (6); the V-shaped belt II (5) is arranged on the belt pulley II (3) and the eccentric belt pulley (6); one end of the fixed rod (20) is connected with the connecting rod I (4), and the other end of the fixed rod is connected with the connecting rod II (9);

the separation mechanism includes: the device comprises a primary separating screen (10), a secondary separating screen (11), a chain wheel I (27), a chain wheel II (28), a chain (17), a motor II (18), a rack (16), a screen shaft (12), a hinged support II (13), a crank connecting rod (14), a pin shaft (15) and a vibrating spring (22); the primary separating screen (10) is fixed at the top end of the frame (16); vibrating springs (22) are suspended at the left two corners of the secondary separating screen (11); the right side of the sieve runs through the sieve shaft (12); two ends of the screen shaft (12) are respectively hinged with a crank connecting rod (14); one end of the crank connecting rod (14) is hinged with the screen shaft (12), and the other end is hinged with the pin shaft (15); the hinged support II (13) is welded on the rack (16); the pin shaft (15) is hinged with the hinged support II (13); the chain wheel I (27) is fixedly connected to the pin shaft (15) through a key; the chain wheel II (28) is fixed on an output shaft of the motor II (18); the chain (17) is arranged on the chain wheel I (27) and the chain wheel II (28); one end of the vibrating spring (22) is connected with the rack (16), and the other end is suspended with the secondary separating screen (11).

One side of an eccentric belt wheel (6) of the buckwheat threshing and separating device is milled with three holes; the fan-shaped flywheel (8) is welded on one side without the milled hole, and the position of the gravity center is changed in such a way, so that the threshing press plate (19) can vibrate up and down, and the purposes of impacting, rubbing and vibrating threshing are achieved for the buckwheat grain paving; the holes of the first-stage separation screen (10) are rectangular, and the shape and the size are 30mm multiplied by 50mm; the hole shape of the secondary separation screen (11) is circular, and the aperture radius is 5mm.

The working principle of the buckwheat threshing and separating device is as follows: work by motor I (1) is rotatory, it rotates to drive motor band pulley (24), thereby drive band pulley I (26) and band pulley II (3) and rotate, and drive the rotation of eccentric band pulley (6) again, owing to welded the effect of fan-shaped flywheel (8), and the special construction of eccentric band pulley (6), make this whole barycenter skew, thereby reach reciprocating vibration's effect, drive threshing press plate (19) and hit the motion from top to bottom, artifical only need handheld buckwheat material bottom, the gesture of adjustment buckwheat material, threshing press plate (19) are strikeed the buckwheat material, rub with the hands, the vibration is threshed. The seeds and the short stalk residues which are taken off pass through the primary separating sieve (10), and under the work of the motor II (18), the pin shaft (14) and the crank connecting rod (14) are driven to rotate through chain transmission, so that the secondary separating sieve (11) vibrates at a high speed, and the seeds and the short stalk residues are separated again.

The structure and operation of the present invention are described in detail with reference to the embodiments, but the present invention is not limited to the embodiments, and any modifications made based on the above description may be made within the spirit and principle of the present invention; equivalent alterations, modifications and the like are intended to be included within the scope of the invention.

Claims

1. A buckwheat threshing and separating device mainly comprises a threshing mechanism and a separating mechanism;

the method is characterized in that:

the threshing mechanism comprises: the threshing mechanism comprises a motor I, a base, a motor belt wheel, a belt wheel I, a belt wheel II, an eccentric belt wheel, a V-shaped belt I, a V-shaped belt II, a fan-shaped flywheel, a threshing press plate, a hinged support I, a shaft II, a connecting rod I, a connecting rod II and a fixing rod; the motor I is fixedly connected with the base through a bolt; the motor belt wheel key is fixedly connected to an output shaft of the motor I; the hinged support I is fixed on the base through bolts; the shaft I penetrates through the hinged supports I, and the hole shaft is connected and fixed to the hinged supports I on the two sides in a clearance fit manner; the belt wheel I and the belt wheel II are mounted on the shaft I through key connection; the V-shaped belt I is arranged on the motor belt wheel and the belt wheel I; one end of the connecting rod I is hinged to the shaft I; one end is hinged with the shaft II; one end of the connecting rod II is hinged to the shaft II, and the other end of the connecting rod II is connected with the threshing press plate; the eccentric belt wheel is fixedly connected to the shaft II through a key; the fan-shaped flywheel is arranged on the eccentric belt wheel; the V-shaped belt II is arranged on the belt pulley II and the eccentric belt pulley; one end of the fixed rod is connected with a connecting rod I, and the other end of the fixed rod is connected with a connecting rod II;

the separation mechanism includes: the device comprises a primary separating screen, a secondary separating screen, a chain wheel I, a chain wheel II, a chain, a motor II, a rack, a screen shaft, a hinged support II, a crank connecting rod, a pin shaft and a vibrating spring; the primary separating screen is fixed at the top end of the frame; vibrating springs are suspended at the left two corners of the secondary separation screen; the right side of the sieve runs through the sieve shaft; two ends of the screen shaft are respectively hinged with a crank connecting rod; one end of the crank connecting rod is hinged with the screen shaft, and the other end of the crank connecting rod is hinged with the pin shaft; the hinged support II is welded on the rack; the pin shaft is hinged with the hinged support II; the chain wheel I is fixedly connected with the pin shaft through a key; the chain wheel II is fixed on an output shaft of the motor II; the chain is arranged on the chain wheel I and the chain wheel II; one end of the vibrating spring is connected with the rack, and the other end of the vibrating spring is hung on the secondary separating screen.

2. The buckwheat threshing and separating device of claim 1, wherein: milling three holes on one side of the eccentric belt wheel; and the fan-shaped flywheel is welded on one side of the non-milled hole.

3. The buckwheat threshing and separating device of claim 1, wherein: the screen mesh of the first-stage separation screen is rectangular, and the shape and the size are 30mm multiplied by 50mm.

4. The buckwheat threshing and separating device of claim 1, wherein: the screen mesh of the secondary separation screen is circular, and the size radius is 5mm.