Threshing element capable of adjusting breakage rate and threshing cylinder

Abstract

The utility model belongs to the technical field of grain threshing, and particularly relates to a threshing element capable of adjusting the breakage rate and a threshing cylinder. The utility model provides a threshing element capable of adjusting breakage rate, which comprises a through hole arranged on a roller seat, a mounting seat unit arranged on the through hole, and a spike tooth unit penetrating through the through hole and arranged on the mounting seat unit, each spike tooth unit comprises a fixed section which penetrates through the mounting seat unit and is connected with the through hole, a linear section which is arranged at the end part of the fixed section and protrudes out of the surface of the mounting seat unit, and an arc-shaped section which is arranged at the end part, far away from the fixed section, of the linear section; by arranging the three beating sections in different forms, the impact effect of a traditional straight rod on grains is effectively reduced, the flexible rubbing threshing process is strengthened, meanwhile, grain damage is reduced, further, the included angle between the beating parts and the roller can be adjusted, and the threshing effect is improved. And the adaptability to grains with different water contents and harvesting objects of different varieties is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of grain threshing, in particular to a threshing element and a threshing drum with adjustable crushing rate. Background Art

[0002] Grain threshing is an agricultural process that aims to separate grains from the grain ear in preparation for subsequent storage or processing. It is an indispensable part of agricultural production, directly affecting the quality and storage life of the grain, and thus the quality and output of food processing. The threshing process usually involves physical operations and is completed using threshing devices. These devices are designed according to the threshing characteristics of the grain and are divided into several basic types according to different threshing principles, such as impact, friction, and extrusion. Under the operation of the threshing device, the grain ear is subjected to mechanical action, and the grain is separated. During this process, the setting of machine parameters is very critical and will directly affect the threshing effect and the degree of grain damage.

[0003] The Chinese utility model patent with patent publication number CN218417427U and publication date of February 3, 2023, discloses a soybean flexible threshing drum with replaceable threshing elements, including a drum main body connected to the frame through a drum shaft, the front end of the drum main body is a feeding section composed of a spiral feeding head, and the rear end is a threshing section with six groups of threshing parts evenly distributed circumferentially on the circumference of the drum main body; the threshing parts are fixed to the drum main body through threaded holes on the spoke disk and the spiral feeding head, and supported by partitions; each group of threshing parts is installed in the threshing finger sleeve by screws from the threshing element, and the threshing finger sleeve is connected to the torsion spring and fixed to the spoke by a fixed base and screws; the threshing parts on the spokes are distributed in two ways: dense and sparse, and are staggered on the spoke disk of the drum main body.

[0004] The threshing drum in this Chinese utility model patent has the following general usage and advantages: the threshing element is fixed to the threshing finger sleeve by a stud, and the threshing element can be replaced at any time, thereby improving the adaptability of the threshing drum; the threshing element is rotatably connected to the threshing finger sleeve by a torsion spring, so that the threshing element can be deflected to unload part of the impact force when the load is large, and resin is used as the threshing element material, which reduces the damage of the threshing element to the material.

[0005] However, the threshing drum still has at least the following deficiencies in actual use, in other words, these are the technical problems to be solved by the present invention: although the threshing drum can be replaced at any time, the threshing angle cannot be controlled, so the impact force on the grain is single, which may cause the grain to break or crack due to excessive force, or the threshing cannot be completed due to too little force.

[0006] Therefore, in summary, there is an urgent need for a threshing element and a threshing drum that can adjust the grain breakage rate to solve the problem of this type of problem. Utility Model Content

[0007] The utility model provides a threshing element with an adjustable crushing rate, comprising a through hole arranged on a roller seat, a mounting seat unit arranged on the through hole, and a spike unit arranged on the mounting seat unit through the through hole, wherein the spike unit comprises a fixed section passing through the mounting seat unit and connected to the through hole, a straight section arranged at the end of the fixed section and protruding from the surface of the mounting seat unit, and an arc section arranged at the end of the straight section away from the fixed section, so that: the utility model effectively reduces the impact of a traditional straight rod on grains by arranging three striking sections of different shapes, strengthens the flexible rubbing threshing process, and reduces the occurrence of grain damage; further, the angle between the striking part and the roller is adjustable, thereby improving the adaptability to grains with different moisture contents and harvesting objects of different varieties.

[0008] The technical solution adopted by the utility model to solve the above problems is: a threshing element with adjustable crushing rate, including a through hole arranged on a drum seat, a mounting seat unit arranged on the through hole, and a spike unit arranged on the mounting seat unit and passing through the through hole; the spike unit includes a fixed section passing through the mounting seat unit and connected to the through hole, a straight line section arranged at the end of the fixed section and protruding from the surface of the mounting seat unit away from the through hole, and an arc section arranged at the end of the straight line section away from the fixed section.

[0009] A further preferred technical solution is that: the outer surface of the fixing section has an external thread, and a limiting nut is screwed onto the external thread.

[0010] A further preferred technical solution is that the mounting seat unit includes a fixing plate arranged on the inner wall of the through hole, a mounting hole arranged on the fixing plate and for the fixing section to pass through, and a mounting ring body arranged on the outer side of the fixing section and connected to the inner wall of the mounting hole.

[0011] A further preferred technical solution is that the diameter of the fixed segment is smaller than the diameter of the straight segment.

[0012] A further preferred technical solution is that the mounting seat unit further includes a plurality of grooves arranged on the wall of the mounting hole, and a plurality of protrusions arranged on the mounting ring body and engaged with the grooves.

[0013] A further preferred technical solution is that the spike unit further includes an arc-shaped protrusion arranged at the end of the arc segment.

[0014] A further preferred technical solution is that: the mounting seat unit also includes a slide groove arranged at the side end of the mounting hole, an operating groove arranged on the end of the slide groove away from the mounting hole and vertically connected to the slide groove, a slide rod slidingly arranged in the slide groove, a first tooth surface arranged on the circumferential side of the mounting ring body, a second tooth surface arranged on the end of the slide rod close to the mounting ring body and meshing with the first tooth surface, and a limiting member arranged on the slide rod and passing through the operating groove to fix the position of the slide rod in the slide groove.

[0015] A further preferred technical solution is that the limiting member includes a first socket arranged on the sliding rod, a threaded hole arranged on the inner bottom surface of the sliding groove, and a threaded rod that passes through the operating groove and the first socket in sequence and has its end screwed to the threaded hole.

[0016] A further preferred technical solution is that the spike unit further includes a buffer layer provided on the straight line segment, the arc segment and the arc-shaped convex surface.

[0017] A threshing drum comprises any one of the above-mentioned threshing elements with adjustable crushing rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of a threshing element of the present invention;

[0020] Figure 3 This is a schematic diagram of a spike unit of the present invention;

[0021] Figure 4 This is a top view of the first embodiment of the present utility model;

[0022] Figure 5 This is a top view of the second embodiment of the present utility model;

[0023] Figure 6 This is a side view of embodiment 2 of the present utility model;

[0024] Figure 7 This is a side view of embodiment 3 of the present utility model.

[0025] In the figures, the meanings of the reference numerals are as follows:

[0026] Roller seat a;

[0027] Through hole 1, mounting seat unit 2, spike unit 3;

[0028] Fixed plate 21, mounting hole 22, mounting ring 23, groove 24, protrusion 25, slide groove 26a, operating groove 26b, slide rod 27, first tooth surface 28a, second tooth surface 28b, limiter 29, fixed segment 31, straight segment 32, arc segment 33, arc-shaped protrusion 34;

[0029] First insertion hole 291 , threaded hole 292 , threaded rod 293 , external thread 311 , limiting nut 312 . DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings. The following descriptions are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention.

[0031] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. They are relative concepts and may therefore change accordingly according to their different positions and different usage states. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0032] Example 1

[0033] As attached Figure 1-4 As shown, a threshing element with an adjustable crushing rate includes a through hole 1 arranged on a roller seat a, a mounting seat unit 2 arranged on the through hole 1, and a spike unit 3 arranged on the mounting seat unit 2 and passing through the through hole 1; the spike unit 3 includes a fixed segment 31 passing through the mounting seat unit 2 and connected to the through hole 1, a straight segment 32 arranged at the end of the fixed segment 31 and protruding from the surface of the mounting seat unit 2 away from the through hole 1, and an arc segment 33 arranged on the end of the straight segment 32 away from the fixed segment 31.

[0034] In this embodiment, the general method of using the threshing element is as follows:

[0035] The through hole 1 is opened on the roller seat a of the threshing roller, and the mounting seat unit 2 is used to install the spike unit 3. The spike unit 3 includes a fixed section 31 for fixing, a straight section 32 for providing striking impact force, and an arc section 33 for strengthening the grain rubbing and threshing process, which reduces the crushing of grains and stems and creates conditions for the grains to pass through the grass layer. Moreover, since the degree of stem crushing is reduced, the subsequent separation and cleaning load is effectively reduced, thereby reducing losses.

[0036] As a preference of this embodiment, the spike unit 3 further includes an arcuate protrusion 34 provided at the end of the arcuate segment 33 , and a buffer layer provided on the surfaces of the straight segment 32 , the arcuate segment 33 and the arcuate protrusion 34 .

[0037] In this embodiment, the arc-shaped protrusion 34 provided at the end of the arc segment 33 effectively avoids damage to the grain caused by the sharp edges of the end. The buffer layer coated on the surface of the spike unit further reduces the impact, and can also reduce the impact of the grain on the spike to a certain extent, thereby enhancing the stability of the spike unit and extending its service life. The buffer layer can be set to a rubber layer, a plastic foam layer, etc.

[0038] As a preference of this embodiment, the outer surface of the fixing section 31 has an external thread 311 , and a limiting nut 312 is threaded onto the external thread 311 .

[0039] In this embodiment, after the fixing section 31 passes through the through hole 1, the spike unit is fixed to the roller seat a with a limiting nut 312. The limiting nut 312 abuts against the surface of the roller seat to prevent the threshing element from falling. This method can fix the spikes while replacing and maintaining a single threshing element at any time.

[0040] As a preference of this embodiment, the diameter of the fixed segment 31 is smaller than the diameter of the straight segment 32 .

[0041] In this embodiment, the diameter of the fixed section 31 is smaller than that of the straight section 32, which enables the limiting nut 312 and the straight section 32 to be squeezed relative to each other to form a limit for the fixed end 31. The connection method is more stable and avoids the phenomenon of the fixed section 31 moving in the through hole under the action of external force.

[0042] As a preferred embodiment of this embodiment, the mounting seat unit 2 includes a fixing plate 21 arranged on the inner wall of the through hole 1, a mounting hole 22 arranged on the fixing plate 21 and for the fixing section 31 to pass through, a mounting ring body 23 arranged on the outer side of the fixing section 31 and connected to the inner hole wall of the mounting hole 22, a plurality of grooves 24 arranged on the hole wall of the mounting hole 22, and a plurality of protrusions 25 arranged on the mounting ring body 23 and engaged with the grooves 24.

[0043] The cam 312 is a small piece of wood that is fixed on the cam 314 and is fixed on the cam 315. The cam 312 is a small piece of wood that is fixed on the cam 314 and is fixed on the cam 315. The cam 312 is a small piece of wood that is fixed on the cam 314. The cam 312 is a small piece of wood that is fixed on the cam 315.

[0044] Compared with the existing technology, the technical solution described in this embodiment has the following advantages: on the basis of realizing the detachable threshing element, the angle between the axis of the threshing element and the axis of the threshing drum can be further adjusted, the speed of crops passing through the threshing chamber can be changed according to actual conditions, the threshing time can be extended or shortened, and the overall loss caused by threshing can be reduced.

[0045] Example 2

[0046] The difference between this embodiment and the first embodiment is the accuracy of adjusting the angle. Figures 5 and 6 As shown, the details are as follows:

[0047] The mounting seat unit 2 also includes a slide groove 26a arranged at the side end of the mounting hole 22, an operating groove 26b arranged on the end of the slide groove 26a away from the mounting hole 22 and vertically connected to the slide groove 26a, a slide rod 27 slidingly arranged in the slide groove 26a, a first tooth surface 28a arranged on the circumferential side of the mounting ring body 23, a second tooth surface 28b arranged on the end of the slide rod 27 close to the mounting ring body 23 and meshing with the first tooth surface 28a, and a limiting member 29 arranged on the slide rod 27 and passing through the operating groove 26b for fixing the position of the slide rod 27 in the slide groove 26a.

[0048] In this embodiment, the operator reaches into the operating slot 26b and into the slide slot 26a, takes out the limit piece 29, and pulls the slide bar 27 to separate the first tooth surface 28a and the second tooth surface 28b. At this time, the straight section 32 or the arc section 33 can be rotated to drive the fixed section 31 and the mounting ring body 23 to rotate, thereby adjusting the angle between the axis of the threshing element and the axis of the threshing drum. After adjusting to a suitable angle, the slide bar 27 is reset, and the position of the slide bar 27 is fixed using the limit piece 29 to complete the angle adjustment and fixation; further, scale lines can be provided on the outer surfaces of the mounting ring body 23 and the mounting hole 22 to achieve precise control.

[0049] As a preferred embodiment of this embodiment, the limiting member 29 includes a first socket 291 arranged on the sliding rod 27, a threaded hole 292 arranged on the inner bottom surface of the sliding groove 26a, and a threaded rod 293 that passes through the operating groove 26b and the first socket 291 in sequence and has its end screwed to the threaded hole 292.

[0050] In this embodiment, the threaded rod 293 is rotated to screw the threaded rod 293 out of the threaded hole 292 or screw it in. The inner wall of the first socket 291 is preferably a smooth surface for easy operation. The threaded rod 293 can also serve as a handle for pulling the slide rod 27. After the operator rotates the threaded rod 293, the threaded rod 293 is lifted up to the end and retained in the first socket 291. At this time, the slide rod 27 can be pulled by moving the threaded rod 293. Furthermore, a second socket can be provided on the side of the inner bottom surface of the slide groove 26a away from the mounting ring body 23 for temporarily fixing the slide rod, so that the operator can adjust the angle conveniently.

[0051] Compared with the prior art, the technical solution described in this embodiment has the advantages of: while achieving adjustable angles, it enhances the continuity of angle adjustment, improves the accuracy of angle control, and refines the range of striking effects.

[0052] Example 3

[0053] This embodiment provides a threshing drum, comprising a threshing element with adjustable crushing rate as described in any of the above embodiments.

[0054] In this embodiment, the threshing drum also includes a drum seat, a connector, a main shaft, a motor, etc. This application does not improve other parts outside the threshing element, so it will not be described in detail.

[0055] Compared with the prior art, the technical solution described in this embodiment has the advantage of providing a threshing drum capable of adjusting the striking effect of the threshing element, which can be adjusted according to different crop conditions and different feeding amounts.

[0056] While the embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to the embodiments described above. Various modifications are possible within the scope of knowledge possessed by a person skilled in the art without departing from the spirit of the present invention. These modifications are non-inventive and are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A threshing element with adjustable crushing rate, characterized in that: The invention comprises a through hole (1) provided on a roller seat (a), a mounting seat unit (2) provided on the through hole (1), and a spike unit (3) provided on the mounting seat unit (2) and passing through the through hole (1); the spike unit (3) comprises a fixed section (31) passing through the mounting seat unit (2) and connected to the through hole (1), a straight section (32) provided at the end of the fixed section (31) and protruding from the surface of the mounting seat unit (2) away from the through hole (1), and an arc section (33) provided at the end of the straight section (32) away from the fixed section (31).

2. A threshing element with adjustable crushing rate according to claim 1, characterized in that: The outer surface of the fixing section (31) has an external thread (311), and a limiting nut (312) is threaded onto the external thread (311).

3. A threshing element with adjustable crushing rate according to claim 2, characterized in that: The mounting seat unit (2) comprises a fixing plate (21) arranged on the inner wall of the through hole (1), a mounting hole (22) arranged on the fixing plate (21) and for the fixing section (31) to pass through, and a mounting ring body (23) arranged on the outer side of the fixing section (31) and connected to the inner wall of the mounting hole (22).

4. A threshing element with adjustable crushing rate according to claim 3, characterized in that: The diameter of the fixed section (31) is smaller than the diameter of the straight section (32).

5. The threshing element with adjustable crushing rate according to claim 3, characterized in that: The mounting seat unit (2) further comprises a plurality of grooves (24) provided on the wall of the mounting hole (22), and a plurality of protrusions (25) provided on the mounting ring body (23) and engaged with the grooves (24).

6. A threshing element with adjustable crushing rate according to claim 1, characterized in that: The spike unit (3) further comprises an arc-shaped protrusion (34) arranged at the end of the arc-shaped segment (33).

7. The threshing element with adjustable crushing rate according to claim 3, characterized in that: The mounting seat unit (2) further includes a slide groove (26a) arranged at a side end of the mounting hole (22), an operating groove (26b) arranged on an end of the slide groove (26a) away from the mounting hole (22) and vertically connected to the slide groove (26a), a slide rod (27) slidingly arranged in the slide groove (26a), a first tooth surface (28a) arranged on the circumferential side of the mounting ring body (23), a second tooth surface (28b) arranged on an end of the slide rod (27) close to the mounting ring body (23) and meshing with the first tooth surface (28a), and a limiting member (29) arranged on the slide rod (27) and passing through the operating groove (26b) for fixing the position of the slide rod (27) in the slide groove (26a).

8. The threshing element with adjustable crushing rate according to claim 7, characterized in that: The limiting member (29) includes a first insertion hole (291) provided on the slide rod (27), a threaded hole (292) provided on the inner bottom surface of the slide groove (26a), and a threaded rod (293) that passes through the operating groove (26b) and the first insertion hole (291) in sequence and has an end portion screwed to the threaded hole (292).

9. The threshing element with adjustable crushing rate according to claim 6, characterized in that: The spike unit (3) further comprises a buffer layer provided on the surface of the straight segment (32), the arc segment (33) and the arc-shaped protrusion (34).

10. A threshing drum, characterized in that: The invention comprises a threshing element with adjustable crushing rate as described in any one of claims 1 to 9.

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