Multifunctional threshing machine

Abstract

The utility model relates to the field of threshers, in particular to a multifunctional thresher. The threshing machine comprises a supporting frame, a box body, a threshing roller assembly, a filter screen assembly, a material and slag separating mechanism and a driving mechanism. The box body is arranged on the supporting frame, and a feeding port and a discharging port are formed in the two ends of the top in the horizontal direction respectively. The threshing cylinder assembly comprises a threshing cylinder a and a threshing cylinder b which are rotationally arranged on the box body side by side, and the feeding port, the threshing cylinder a, the threshing cylinder b and the discharging port are sequentially distributed; the filter screen assembly is arranged on the box body and located below the threshing roller assembly, and the inner space of the box body is divided into a threshing bin and a storage bin from top to bottom. The material and slag separating mechanism is used for separating powder and slag from the threshed materials; the driving mechanism is arranged on the supporting frame and used for driving the threshing roller a, the threshing roller b and the material and slag separating mechanism to operate. The threshing machine can be used for threshing various crops and screening out powder residues, so that the threshing effect is ensured.

Description

Technical Field

[0001] The utility model relates to the field of threshers, in particular to a multifunctional thresher. Background Art

[0002] For threshing of crops such as corn, wheat, grains, chestnuts, beans, rapeseed, etc., if threshing is done manually, it is time-consuming and labor-intensive, and the threshing efficiency is low. Using a thresher for threshing can effectively improve the threshing efficiency and quality.

[0003] Chinese patent publication number CN219893903U discloses a rapeseed thresher, which can thresh the straw by driving a pressing roller to rotate and crush the straw.

[0004] However, the above technical solution has the following shortcomings:

[0005] During the threshing process, the powder residue produced is mixed in the grains, resulting in poor threshing effect. Utility Model Content

[0006] The utility model aims to solve the problems existing in the background technology and proposes a multifunctional thresher which can thresh various crops and sieve out powder residues so as to ensure the threshing effect.

[0007] The technical scheme of the utility model is a multifunctional thresher, comprising a support frame, a box body, a threshing drum assembly, a filter assembly, a material-slag separation mechanism and a driving mechanism; the box body is arranged on the support frame, and the two ends of the top horizontal direction are respectively a feed inlet and a discharge outlet; the threshing drum assembly comprises a threshing drum a and a threshing drum b which are arranged to rotate side by side on the box body, and the feed inlet, the threshing drum a, the threshing drum b and the discharge outlet are distributed in sequence; the filter assembly is arranged on the box body, located below the threshing drum assembly, and divides the internal space of the box body from top to bottom into a threshing bin and a storage bin; the material-slag separation mechanism separates powder and slag from the threshed material; the driving mechanism is arranged on the support frame and is used to drive the threshing drum a, the threshing drum b and the material-slag separation mechanism to operate.

[0008] Preferably, a plurality of welding platforms are arranged on the outer circumferential surface of the threshing drum a in a direction parallel to the central axis, and a plurality of threshing ribs equidistantly distributed along the length direction of the welding platform are obliquely welded on the outer surface of the welding platform.

[0009] Preferably, a plurality of threshing assemblies are evenly arranged around the central axis on the outer circumferential surface of the threshing drum b, and the threshing assembly includes a plurality of threshing heads equidistantly distributed in a direction parallel to the central axis of the threshing drum b.

[0010] Preferably, the filter assembly includes filter a, filter b and three mounting shafts, the adjacent ends of filter a and filter b are mounted on one mounting shaft, the other end of filter a and the other end of filter b are respectively mounted on the other two mounting shafts, the three mounting shafts are all mounted on the box body, and filter a and filter b are both downwardly concave arc structures and are respectively located below the threshing drum a and threshing drum b.

[0011] Preferably, the box body is provided with a feeding hopper and a feeding baffle at the feeding port, and a discharging baffle at the discharging port.

[0012] Preferably, the material-slag separation mechanism includes a wheel cover, a screening barrel, a spiral conveying rod rotatably arranged at the bottom of the storage bin and conveying the threshed material to the wheel cover, a material-discharging impeller connected to the spiral conveying rod and conveying the threshed material to the screening barrel in the wheel cover, a slag extraction pipe with one end connected to the top of the screening barrel, an air suction hood connected to the other end of the slag extraction pipe and arranged on the box body, a suction wheel coaxially connected to the threshing drum a, and a slag discharge pipe connected to the air suction hood.

[0013] Preferably, the driving mechanism includes a bracket a and a bracket b arranged side by side on a support frame, two fixed plates respectively arranged on the bracket a and the bracket b and forming an installation channel between the bracket a and the bracket b, an adjusting rod rotatably connected to the bracket a, a mounting plate slidably installed at the mounting channel, a connecting plate whose two ends are respectively rotatably connected to the adjusting rod and the mounting plate, a motor arranged on the mounting plate, and a transmission assembly that transmission-connects the motor to the spiral conveying rod, the threshing drum a and the threshing drum b, and a plurality of slots for the adjusting rod to be inserted are arranged side by side on the bracket b.

[0014] Preferably, the transmission assembly includes a pulley a arranged at the output end of the motor, a pulley b arranged on the spiral conveying rod, a pulley c arranged on the threshing drum a, a pulley d arranged on the threshing drum b, and a belt sleeved on the pulley a, the pulley b, the pulley c and the pulley d.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] The utility model multifunctional thresher can be widely used for threshing corn, wheat, grains, chestnuts, beans, rapeseed, etc., and has the characteristics of reasonable design, high production efficiency, clear screening of grain residue, and complete threshed seed particles. During threshing, double threshing is performed by threshing drum a and threshing drum b, and the threshing effect is good. The powder residue and bran after threshing can also be discharged by negative pressure exhaust, so that cleaner grains can be retained in the screening barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 and Figure 2 All of them are structural schematic diagrams of embodiments of the utility model;

[0018] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0019] Figure 4 It is a partial structural cross-sectional view of an embodiment of the utility model;

[0020] Figure 5 It is a schematic structural diagram of the threshing drum a in the embodiment of the utility model.

[0021] Figure numerals: 1. threshing drum a; 101. welding table; 102. threshing ribs; 2. threshing drum b; 201. threshing head; 3. spiral conveying rod; 4. material-discharging impeller; 5. wheel cover; 6. screening barrel; 7. slag extraction pipe; 8. suction hood; 9. suction wheel; 10. slag discharge pipe; 11. box body; 12. feeding hopper; 13. feed baffle; 14. discharge baffle; 15. support frame; 16. bracket a; 17. bracket b; 171. slot; 18. fixing plate; 19. adjusting rod; 20. connecting plate; 21. mounting plate; 22. motor; 23. belt; 24. filter a; 25. filter b. DETAILED DESCRIPTION

[0022] Embodiment 1

[0023] like Figure 1-Figure 5 As shown, the multifunctional thresher proposed in this embodiment includes a support frame 15, a housing 11, a threshing drum assembly, a filter assembly, a material-residue separation mechanism and a driving mechanism.

[0024] The box body 11 is arranged on a support frame 15, and the two ends of the top horizontal direction are a feed port and a discharge port. The box body 11 is provided with a hopper 12 and a feed baffle 13 at the feed port to facilitate the addition of crops to the feed port, and a discharge baffle 14 is provided at the discharge port to facilitate the discharge of the crop stems after separation.

[0025] like Figure 4 and Figure 5 As shown, the threshing drum assembly includes a threshing drum a1 and a threshing drum b2 which are rotatably arranged side by side on a housing 11, and a feed port, a threshing drum a1, a threshing drum b2 and a discharge port are sequentially distributed. A plurality of welding platforms 101 are arranged on the outer circumference of the threshing drum a1 in a direction parallel to the central axis, and a plurality of threshing ribs 102 which are equidistantly distributed along the length direction of the welding platform 101 are obliquely welded on the outer surface of the welding platform 101, and the threshing ribs 102 are made of ribbed steel bars, and can perform primary threshing on crops. A plurality of threshing assemblies are evenly arranged around the central axis on the outer circumference of the threshing drum b2, and the threshing assemblies include a plurality of threshing heads 201 which are equidistantly distributed along a direction parallel to the central axis of the threshing drum b2, and the crops can be threshed secondary by the threshing heads 201.

[0026] The filter assembly is arranged on the housing 11, below the threshing drum assembly, and divides the internal space of the housing 11 from top to bottom into a threshing bin and a storage bin. The filter assembly includes a filter a24, a filter b25, and three mounting shafts, the adjacent ends of the filter a24 and the filter b25 are both mounted on one mounting shaft, the other ends of the filter a24 and the other ends of the filter b25 are respectively mounted on the other two mounting shafts, and the three mounting shafts are all mounted on the housing 11, the filter a24 and the filter b25 are both downwardly concave arc structures and are respectively located below the threshing drum a1 and the threshing drum b2, so that the materials after two threshings can be filtered into the storage bin below.

[0027] The material-slag separation mechanism separates the powder and slag from the threshed material. The material-slag separation mechanism includes a wheel cover 5, a screening barrel 6, a screw conveying rod 3 that is rotatably arranged at the bottom of the storage bin and conveys the threshed material to the wheel cover 5, a material-discharging impeller 4 that is connected to the screw conveying rod 3 and conveys the threshed material to the screening barrel 6 in the wheel cover 5, a slag extraction pipe 7 that is connected to the top of the screening barrel 6 at one end, an air suction hood 8 that is connected to the other end of the slag extraction pipe 7 and is arranged on the box body 11, an air suction wheel 9 that is coaxially connected to the threshing drum a1, and a slag discharge pipe 10 that is connected to the air suction hood 8. The air suction wheel 9 is used to create negative air pressure, thereby extracting dust and bran from the threshed seed bran, and retaining clean seed material in the screening barrel 6.

[0028] The driving mechanism is arranged on the support frame 15 and is used to drive the threshing drum a1, the threshing drum b2 and the material-slag separation mechanism to operate. Using one driving mechanism for driving is more energy-efficient.

[0029] This embodiment can thresh a variety of crops, and can screen out the powder residue to ensure the threshing effect. During threshing, the driving mechanism is started, and the driving mechanism drives the threshing drum a1 and the threshing drum b2 to rotate, and drives the material residue separation mechanism to operate. The crops are fed into the feed port of the box body 11 through the feeding hopper 12, and the threshing drum a1 performs the initial threshing on the crops. The resulting seed bran mixture falls into the storage bin below through the filter screen a24, and then the crops after the initial threshing are subjected to secondary threshing by the threshing drum b2. The resulting seed bran mixture falls into the storage bin below through the filter screen b25, and the remaining large materials (such as wheat strips, bare corn cobs, etc.) are discharged through the discharge port. For the materials that fall into the storage bin, the spiral conveying rod 3 in the material residue separation mechanism conveys the materials into the wheel cover 5, and the spiral conveying rod 3 moves the materials (granular materials and bran) in the wheel cover 5 into the screening barrel 6 through the material shifting impeller 4. The threshing drum a1 drives the suction wheel 9 to rotate, and the suction wheel 9 creates negative air pressure in the suction hood 8. The powder residue and bran (lighter in weight) in the screening barrel 6 are sucked into the suction hood 8 through the residue extraction pipe 7 and discharged through the residue discharge pipe 10. The heavier particles (seed materials) remain in the screening barrel 6, and the retained particles are cleaner.

[0030] Embodiment 2

[0031] like Figure 1-Figure 5 As shown, the multifunctional thresher proposed in this embodiment, compared with the embodiment 1, in this embodiment, the driving mechanism includes a bracket a16 and a bracket b17 arranged side by side on the support frame 15, two fixed plates 18 respectively arranged on the bracket a16 and the bracket b17 and forming a mounting channel between the bracket a16 and the bracket b17, an adjusting rod 19 rotatably connected to the bracket a16, a mounting plate 21 slidably installed at the mounting channel, a connecting plate 20 rotatably connected to the adjusting rod 19 and the mounting plate 21 at both ends, a motor 22 arranged on the mounting plate 21, and a transmission assembly that transmission connects the motor 22 with the spiral conveying rod 3, the threshing drum a1 and the threshing drum b2, and a plurality of card slots 171 for the adjusting rod 19 to be clamped are arranged side by side on the bracket b17 to adjust the setting position of the motor 22.

[0032] The transmission assembly includes a pulley a arranged at the output end of the motor 22, a pulley b arranged on the spiral conveying rod 3, a pulley c arranged on the threshing drum a1, a pulley d arranged on the threshing drum b2, and a belt 23 sleeved on the pulley a, the pulley b, the pulley c and the pulley d.

[0033] In this embodiment, the motor 22, the spiral conveying rod 3, the threshing drum a1 and the threshing drum b2 can be connected by a plurality of pulleys and belts 23. When the belt 23 is installed, the belt 23 is first installed on the pulley a, the pulley b, the pulley c and the pulley d, and then the adjusting rod 19 is rotated to the left. The adjusting rod 19 drives the mounting plate 21 to move in the mounting channel through the connecting plate 20, and the belt 23 is tightened. Then the adjusting rod 19 is inserted into the slot 171 here to ensure the transmission effect of the belt 23. The wrap angle of the belt 23 on the pulley b can ensure the smooth belt transmission. Figure 2 The belt 23 in the figure is only an example of the setting position, and does not mean that in actual situation the belt 23 and the pulley b have a smaller wrap angle as shown in the figure. In fact, after the motor 22 moves to the left, the wrap angle between the belt 23 and the pulley b can be increased, the pulley b will not slip, and the pulley b can be effectively driven by the belt 23.

[0034] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Multifunctional thresher, characterized in that: include: Support frame (15); The box body (11) is arranged on a support frame (15), and the two ends of the top in the horizontal direction are a feed inlet and a discharge outlet respectively; A threshing drum assembly comprises a threshing drum a (1) and a threshing drum b (2) which are rotatably arranged side by side on a housing (11), wherein a feed inlet, the threshing drum a (1), the threshing drum b (2) and a discharge port are sequentially distributed; A filter assembly is arranged on the box body (11) and is located below the threshing drum assembly, and divides the internal space of the box body (11) into a threshing bin and a storage bin from top to bottom; A material-slag separation mechanism for separating powder slag from the threshed material; A driving mechanism is arranged on a support frame (15) and is used to drive a threshing drum a (1), a threshing drum b (2) and a material-slag separation mechanism to operate.

2. The multifunctional thresher according to claim 1, characterized in that: A plurality of welding platforms (101) are arranged on the outer circumferential surface of the threshing drum a (1) in a direction parallel to the central axis, and a plurality of threshing ribs (102) are obliquely welded on the outer surface of the welding platform (101) and are equidistantly distributed along the length direction of the welding platform (101).

3. The multifunctional thresher according to claim 1, characterized in that: A plurality of threshing assemblies are evenly arranged around the central axis on the outer circumferential surface of the threshing drum b (2), and the threshing assemblies include a plurality of threshing heads (201) equidistantly distributed in a direction parallel to the central axis of the threshing drum b (2).

4. The multifunctional thresher according to claim 1, characterized in that: The filter assembly comprises a filter a (24), a filter b (25) and three mounting shafts, wherein the adjacent ends of the filter a (24) and the filter b (25) are mounted on one mounting shaft, and the other ends of the filter a (24) and the filter b (25) are mounted on the other two mounting shafts respectively, and the three mounting shafts are mounted on the housing (11), and the filter a (24) and the filter b (25) are both downwardly concave arc structures and are respectively located below the threshing drum a (1) and the threshing drum b (2).

5. The multifunctional thresher according to claim 1, characterized in that: The box body (11) is provided with a feeding hopper (12) and a feeding baffle (13) at the feeding port, and a discharging baffle (14) at the discharging port.

6. The multifunctional thresher according to claim 1, characterized in that: The material-slag separation mechanism comprises a wheel cover (5), a screening barrel (6), a screw conveying rod (3) rotatably arranged at the bottom of a storage bin and conveying threshed materials to the wheel cover (5), a material-discharging impeller (4) connected to the screw conveying rod (3) and conveying threshed materials to the screening barrel (6) in the wheel cover (5), a slag extraction pipe (7) one end of which is connected to the top of the screening barrel (6), an air suction hood (8) connected to the other end of the slag extraction pipe (7) and arranged on a box body (11), an air suction wheel (9) coaxially connected to a threshing drum a (1), and a slag discharge pipe (10) connected to the air suction hood (8).

7. The multifunctional thresher according to claim 6, characterized in that: The driving mechanism comprises a bracket a (16) and a bracket b (17) arranged side by side on a support frame (15), two fixing plates (18) respectively arranged on the bracket a (16) and the bracket b (17) and forming a mounting channel between the bracket a (16) and the bracket b (17), an adjusting rod (19) rotatably connected to the bracket a (16), a mounting plate (21) slidably mounted at the mounting channel, a connecting plate (20) with two ends of which are rotatably connected to the adjusting rod (19) and the mounting plate (21), a motor (22) arranged on the mounting plate (21), and a transmission assembly for drivingly connecting the motor (22) with a screw conveying rod (3), a threshing drum a (1) and a threshing drum b (2); and a plurality of slots (171) for the adjusting rod (19) to be clamped are arranged side by side on the bracket b (17).

8. The multifunctional thresher according to claim 7, characterized in that: The transmission assembly comprises a pulley a arranged at the output end of a motor (22), a pulley b arranged on a spiral conveying rod (3), a pulley c arranged on a threshing drum a (1), a pulley d arranged on a threshing drum b (2), and a belt (23) sleeved on the pulley a, the pulley b, the pulley c and the pulley d.

Images