CN219514672U

CN219514672U - Grain threshing device

Info

Publication number: CN219514672U
Application number: CN202320518883.XU
Authority: CN
Inventors: 蒋爱民; 余忠强; 董彬; 范伟
Original assignee: Chongqing Tong Shuang Machinery Manufacturing Co ltd
Current assignee: Chongqing Tong Shuang Machinery Manufacturing Co ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-08-15
Anticipated expiration: 2033-03-16

Abstract

The utility model discloses a grain threshing device, which comprises a threshing box and an auxiliary threshing unit; the upper part of the front side of the threshing box is provided with a feed hopper, threshing units are arranged between the upper parts of the left side and the right side of the inside of the threshing box, and sorting units are arranged at the lower parts of the left side and the right side of the inside of the threshing box; the auxiliary threshing unit comprises a chute, sliding blocks, connecting rods, an auxiliary threshing plate and a power assembly, wherein the chute is formed in the rear side of the threshing box along the vertical direction, two sliding blocks are arranged in the chute and distributed on the upper portion and the lower portion of the chute, and a threaded hole penetrating through the middle of the upper side and the lower side of each sliding block is formed in the middle of each sliding block. The beneficial effects are that: the threshing mechanism has the advantages that the adjusting component is used for adjusting the position of the threshing plate, so that the width of a passing channel between the threshing plate and the threshing roller is matched with the thickness of corncobs needing threshing, the threshing effect on corn cobs with different thicknesses can be achieved, the application range is wide, and the using effect is good.

Description

Grain threshing device

Technical Field

The utility model relates to the technical field of grain threshing devices, in particular to a grain threshing device.

Background

The corn threshing is one of the most important links in the crop harvesting process, and the corn thresher is widely applied in the market as a corn cob separating device, but corn cobs with different thicknesses can appear under different growth conditions, and threshing structures in the existing corn threshing device are mostly in a fixed state, when the corn threshing device is used, the adjusting effect on the internal threshing structure cannot be realized according to the corn cobs with different thicknesses, and the threshing effect cannot be fully realized on finer corn cobs.

Disclosure of Invention

The present utility model aims to solve the above problems by providing a threshing device for cereals, as described in more detail below.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a grain threshing device, which comprises a threshing box, a threshing unit and a screening unit;

the upper part of the threshing box is provided with a feed hopper;

the threshing unit comprises a threshing roller, a motor, an adjusting component and a threshing plate, wherein the threshing roller and the threshing plate are arranged in the threshing box, the threshing roller is positioned close to the feeding hopper, the threshing plate is positioned on one side of the threshing roller and forms a material passing channel with the threshing roller, the adjusting component is arranged in the threshing box and is connected with the threshing plate in a matched manner, the distance between the threshing plate and the threshing roller is adjusted, the motor is arranged on the outer side of the threshing box, and an output shaft of the motor penetrates through the threshing box and is fixedly connected with one end of the threshing roller;

the inside of threshing box is provided with screening unit, screening unit is located the below of threshing roller for screening corncob and kernel of corn.

When the grain threshing device is used, the motor is controlled by the external power supply, the adjusting component is manually controlled to adjust the position of the threshing plate, the distance between the threshing plate and the threshing roller is matched with the thickness of corncob, the external power supply is connected after the position of the threshing plate is adjusted, the motor is connected to drive the threshing roller to work, the corncob enters the threshing box through the feeding hopper, under the cooperation between the threshing roller and the threshing plate, the threshing effect on the corncob is realized through the rotation of the threshing roller, and the corncob and the corn kernels after threshing are discharged out of the threshing box through the screening unit; the threshing mechanism has the advantages that the adjusting component is used for adjusting the position of the threshing plate, so that the width of a passing channel between the threshing plate and the threshing roller is matched with the thickness of corncobs needing threshing, the threshing effect on corn cobs with different thicknesses can be achieved, the application range is wide, and the using effect is good.

Preferably, the adjusting component comprises a first screw rod, a second screw rod, sliding blocks and connecting rods, the first screw rod is rotatably arranged on the upper side of the threshing box, the lower end of the first screw rod penetrates into the threshing box, the second screw rod with opposite spiral directions is welded on the lower end of the first screw rod, the outer sides of the first screw rod and the second screw rod are respectively in threaded connection with one sliding block, one side, close to the threshing plate, of each sliding block is respectively hinged with one connecting rod, and the other ends of the two connecting rods are hinged with the threshing plate.

Preferably, the upper end of the first screw rod is fixedly connected with a turntable.

Preferably, a round hole is formed in the outer side of the rotary table, a limiting rod is inserted into the inner side of the round hole, a circle of cylindrical grooves are uniformly formed in the upper side of the threshing box along the circumferential direction, the cylindrical grooves are located on the outer side of the circumference of the first screw rod, and the lower end of the limiting rod is in insertion fit with the inner side of the cylindrical grooves.

Preferably, the screening unit comprises a corncob discharge port, a primary screening net, a secondary screening net, a corncob discharge port and an impurity discharge port, wherein the corncob discharge port is formed in one side, far away from the threshing plate, of the threshing box, the primary screening net is obliquely arranged below the threshing plate, the lower end of the primary screening net extends towards the corncob discharge port, the corncob discharge port is formed in one side, far away from the corncob discharge port, of the threshing box, the secondary screening net is obliquely arranged below the primary screening net, the lower end of the secondary screening net extends towards the corncob discharge port, the impurity discharge port is formed in the outer side of the threshing box, and the impurity discharge port is located below the secondary screening net.

Preferably, the lower part of the threshing plate is of a straight plate structure and extends downwards, the upper part of the threshing plate is of a circular arc structure, an arc-shaped channel is formed between the threshing plate and the threshing roller in an adapting way, and the upper side of the threshing plate is abutted to the inner top surface of the threshing box.

Preferably, the threshing plate is provided with a through hole on the outer side, a cylindrical rod is arranged on one side, far away from the threshing roller, of the threshing box, extends towards the threshing roller and is connected with the inner side of the through hole in a sliding manner.

The beneficial effects are that: 1. the threshing mechanism has the advantages that the adjusting component is used for adjusting the positions of the threshing plates, so that the width of a passing channel between the threshing plates and the threshing roller is matched with the thickness of corncobs needing threshing, the threshing effect on corn cobs with different thicknesses can be achieved, the application range is wide, and the using effect is good;

2. the corn cob after threshing is discharged out of the threshing box through a corn cob discharge port, corn kernels and impurities fall to the upper side of a secondary screening net through a primary screening net, the impurities fall to the bottom of the threshing box through the secondary screening net, the impurities are removed from the impurity discharge port, the corn kernels are discharged through a corn kernel discharge port, and the cleanliness of the corn after threshing can be effectively improved through a double powder screening mode;

3. through the setting of threshing plate upper end convex structure, can make the contact between the corn cob and the threshing plate in advance, increase the contact duration between corn cob and threshing roller and the threshing plate, make the effect that the corn cob can more abundant realization threshing, through the butt setting between the inside top surface of threshing plate's upside and threshing box, play the effect that prevents the corn cob and stride the upside of threshing plate and can't enter into the inside of arc passageway and thresh.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a left side elevational view in full section of the present utility model;

FIG. 3 is a rear perspective view of the present utility model;

fig. 4 is a partially enlarged structural view of fig. 3 a according to the present utility model.

The reference numerals are explained as follows:

1. a threshing box; 2. a feed hopper; 3. a threshing unit; 31. threshing roller; 32. a motor; 33. a first screw rod; 34. a second screw rod; 35. a slide block; 36. a connecting rod; 37. threshing plate; 38. a turntable; 39. a cylindrical groove; 310. a round hole; 311. a limit rod; 4. a sieving unit; 41. corn cob discharging hole; 42. a primary screening mesh; 43. a secondary screening net; 44. a corn grain discharge port; 45 impurity discharge gate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

Referring to fig. 1-4, the present utility model provides a threshing device for grains, comprising a threshing box 1, a threshing unit 3 and a sieving unit 4;

the upper part of the threshing box 1 is provided with a feed hopper 2;

the threshing unit 3 comprises a threshing roller 31, a motor 32, an adjusting component and a threshing plate 37, wherein the threshing roller 31 and the threshing plate 37 are arranged in the threshing box 1, the threshing roller 31 is positioned close to the feeding hopper 2, the threshing plate 37 is positioned on one side of the threshing roller 31 and forms a material passing channel with the threshing roller 31, the adjusting component is arranged in the threshing box 1 and is connected with the threshing plate 37 in a matched manner, the distance between the threshing plate 37 and the threshing roller 31 is adjusted, the motor 32 is arranged on the outer side of the threshing box 1, and an output shaft of the motor 32 penetrates into the threshing box 1 and is fixedly connected with one end of the threshing roller 31;

the inside of the threshing box 1 is provided with a screening unit 4, and the screening unit 4 is positioned below the threshing roller 31 and is used for screening corn cobs and corn kernels.

As an alternative implementation manner, the adjusting component comprises a first screw rod 33, a second screw rod 34, sliding blocks 35 and a connecting rod 36, the first screw rod 33 is rotatably arranged on the upper side of the threshing box 1, the lower end of the first screw rod 33 penetrates into the threshing box 1, the second screw rod 34 with opposite spiral directions is welded, the outer sides of the first screw rod 33 and the second screw rod 34 are respectively connected with the sliding blocks 35 in a threaded manner, one side of each sliding block 35, which is close to the threshing plate 37, is respectively hinged with the connecting rod 36, the other end of each connecting rod 36 is hinged with the threshing plate 37, and in this way, the first screw rod 33 is rotated to drive the second screw rod 34 to rotate, the two sliding blocks 35 are driven to be close to or far away from each other through the rotation of the first screw rod 33 and the second screw rod 34, and when the two sliding blocks 35 are close to or far away from each other, the threshing plate 37 is driven to move towards the direction close to or far from the threshing roller 31 through the connecting rod 36, and the distance between the threshing plate 37 and the threshing roller 31 is adjusted.

The upper end of the first screw rod 33 is fixedly connected with the rotary disc 38, and the rotary disc 38 is rotated to drive the first screw rod 33 to rotate, so that the first screw rod 33 can rotate more easily through external force.

The round hole 310 that runs through has been seted up in the outside of carousel 38, the inboard grafting of round hole 310 has gag lever post 311, round cylinder groove 39 has evenly been seted up along the circumferencial direction to the upside of threshing box 1, cylinder groove 39 is located the circumference outside of screw one 33, peg graft cooperation between the lower extreme of gag lever post 311 and the inboard of cylinder groove 39, set up like this, after threshing plate 37 adjusts corresponding position, slide down the gag lever post 311 of round hole 310 and peg graft cooperation between the inboard of cylinder groove 39, make carousel 38 unable rotation, prevent that threshing plate 37 from appearing the position movement and influencing the threshing action to the corn cob in the course of the work.

The screening unit 4 comprises a corncob discharging hole 41, a primary screening net 42, a secondary screening net 43, a corncob discharging hole 44 and an impurity discharging hole 45, the corncob discharging hole 41 is formed in one side, far away from the threshing plate 37, of the threshing box 1, the primary screening net 42 is obliquely arranged below the threshing plate 37, the lower end of the primary screening net 42 extends towards the corncob discharging hole 41, the corncob discharging hole 44 is formed in one side, far away from the corncob discharging hole 41, of the threshing box 1, the secondary screening net 43 is obliquely arranged below the primary screening net 42, the lower end of the secondary screening net 43 extends towards the corncob discharging hole 44, the impurity discharging hole 45 is formed in the outer side of the threshing box 1, the impurity discharging hole 45 is located below the secondary screening net 43, so that the threshed corncobs, the corn kernels and the impurities fall onto the upper side of the primary screening net 42 together, the corncobs are discharged through the threshing box 41, the corn kernels and the impurities fall onto the upper side of the secondary screening net 43 through the primary screening net 42, the impurities fall onto the bottom of the secondary screening net 43, the corn kernels fall into the bottom of the secondary screening net 43, the corn kernels through the bottom of the threshing box 1, the impurity discharging hole 45 can be discharged through the dual, and the impurity discharging efficiency is improved, and the corn kernels can pass through the corn kernels after the threshing efficiency and the corn kernels are discharged through the dual-clean mode.

The lower part of the threshing plate 37 is of a straight plate structure and extends downwards, the upper part of the threshing plate 37 is of a circular arc structure and is matched with the threshing roller 31 to form an arc-shaped channel, the upper side of the threshing plate 37 is in butt joint with the inner top surface of the threshing box 1, the upper end of the threshing plate 37 is of a circular arc structure, so that corn cobs can be contacted with the threshing plate 37 in advance, the contact time between the corn cobs and the threshing roller 31 and the threshing plate 37 is prolonged, threshing can be achieved more fully, the lower end of the threshing plate 37 is of a straight plate structure, the threshed corn cobs and corn kernels can vertically fall onto the upper side of the primary screening net 42, screening can be achieved fully between the corn cobs and the corn kernels, and the corn cobs can not enter the inside of the arc-shaped channel to be threshed through the butt joint between the upper side of the threshing plate 37 and the inner top surface of the threshing box 1.

The threshing plate 37 is provided with a through hole on the outer side, a cylindrical rod is arranged on one side, far away from the threshing roller 31, of the threshing box 1, the cylindrical rod extends towards the threshing roller 31 and is connected with the inner side of the through hole in a sliding mode, and the threshing plate 37 is enabled to slide only along the direction approaching or far away from the threshing roller 31 through the cooperation between the cylindrical rod and the through hole, so that the sliding direction of the threshing plate 37 is limited.

By adopting the structure, when the threshing machine is used, the motor 32 is controlled by an external power supply, the adjusting function of the position of the threshing plate 37 is realized by manually controlling the adjusting component, the distance between the threshing plate 37 and the threshing roller 31 is matched with the thickness of corncob, after the position of the threshing plate 37 is adjusted, the motor 32 is connected with the external power supply to drive the threshing roller 31 to work, the corncob enters the threshing box 1 through the feeding hopper 2, under the matching function between the threshing roller 31 and the threshing plate 37, the threshing function of the corncob is realized through the rotation of the threshing roller 31, and the corncob and the corn kernels after threshing are discharged out of the threshing box 1 through the screening unit 4; the threshing plate 37 is adjusted by the adjusting component, so that the width of a passing channel between the threshing plate 37 and the threshing roller 31 is matched with the thickness of corncob to be threshed, the threshing effect on various corncobs with different thickness can be realized by the mode, the application range is wide, and the using effect is good.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A grain threshing apparatus, characterized by: comprises a threshing box (1), a threshing unit (3) and a screening unit (4);

the upper part of the threshing box (1) is provided with a feed hopper (2);

the threshing unit (3) comprises a threshing roller (31), a motor (32), an adjusting component and a threshing plate (37), wherein the threshing roller (31) and the threshing plate (37) are arranged in the threshing box (1), the threshing roller (31) is positioned close to the feeding hopper (2), the threshing plate (37) is positioned on one side of the threshing roller (31) and forms a material passing channel with the threshing roller (31), the adjusting component is arranged in the threshing box (1), the adjusting component is connected with the threshing plate (37) in a matched manner and used for adjusting the distance between the threshing plate (37) and the threshing roller (31), the motor (32) is arranged on the outer side of the threshing box (1), and an output shaft of the motor (32) penetrates through the threshing box (1) and is fixedly connected with one end of the threshing roller (31);

the inside of threshing box (1) is provided with screening unit (4), screening unit (4) are located threshing roller (31) below for screening corncob and kernel of corn.

2. A threshing device for grains as recited in claim 1, wherein: the utility model discloses a threshing box, including threshing box (1), adjusting part, threshing box, adjusting part, threshing box and threshing plate, adjusting part includes first lead screw (33), second lead screw (34), slider (35) and connecting rod (36), the upside rotation of threshing box (1) is provided with first lead screw (33), the lower extreme of first lead screw (33) runs through into the inside of threshing box (1), and welds has second lead screw (34) opposite spiral direction, the outside of first lead screw (33) and second lead screw (34) is threaded connection respectively has a slider (35), and one side that two sliders (35) are close to threshing plate (37) articulates respectively has a connecting rod (36), and the other end and the threshing plate (37) of two connecting rods (36) articulate.

3. A threshing device for cereals as claimed in claim 2, wherein: the upper end of the first screw rod (33) is fixedly connected with a rotary table (38).

4. A threshing device as claimed in claim 3, characterized in that: the utility model discloses a threshing box, including carousel (38), round hole (310) that runs through is seted up in the outside of carousel (38), peg graft in the inboard of round hole (310) has gag lever post (311), round cylinder groove (39) have evenly been seted up along the circumferencial direction to the upside of threshing box (1), cylinder groove (39) are located the circumference outside of first (33) lead screw, peg graft the cooperation between the inboard in lower extreme and cylinder groove (39) of gag lever post (311).

5. A threshing device for grains as recited in claim 1, wherein: the utility model provides a corn cob screening unit (4) including corn cob discharge gate (41), elementary screening net (42), second grade screening net (43), kernel of corn discharge gate (44) and impurity discharge gate (45), corn cob discharge gate (41) have been seted up to one side that threshing plate (37) were kept away from to threshing box (1), the below slope of threshing plate (37) is provided with elementary screening net (42), the low side of elementary screening net (42) extends to corn cob discharge gate (41) department, kernel of corn discharge gate (44) have been seted up to one side that corn cob discharge gate (41) were kept away from to threshing box (1), the below slope of elementary screening net (42) is provided with second grade screening net (43), and impurity discharge gate (45) have been seted up in the outside of threshing box (1) to kernel of corn discharge gate (44), impurity discharge gate (45) are located the below of second grade screening net (43).

6. A threshing device for grains as recited in claim 1, wherein: the lower part of the threshing plate (37) is of a straight plate structure and extends downwards, the upper part of the threshing plate (37) is of a circular arc structure, an arc-shaped channel is formed between the threshing plate and the threshing roller (31) in an adapting mode, and the upper side of the threshing plate (37) is in butt joint with the inner top surface of the threshing box (1).

7. A threshing device for grains as recited in claim 1, wherein: the threshing plate (37) is provided with a through hole on the outer side, a cylindrical rod is arranged on one side, far away from the threshing roller (31), of the inner side of the threshing box (1), extends towards the threshing roller (31) and is in sliding connection with the inner side of the through hole.