Non-circular separating mechanism and threshing separating device
By designing a non-circular separation mechanism, the separation space is increased, and the existing corn kernel harvester threshing concave plate screen and separation concave plate screen are easily blocked and insufficient separation space is achieved, and more thorough crop separation, better separation effect and lower grain loss are achieved.
Patent Information
- Application Number
- CN202520178997.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2035-02-05
AI Technical Summary
The threshing concave sieve and separation concave sieve of existing corn kernel harvesters are easily blocked due to crop miscellaneous crops and high moisture content, which affects the threshing effect and efficiency. Insufficient separation space leads to grain loss, and the roller load greatly reduces service life.
A non-circular separation mechanism is designed, including a separation concave plate and an upper cover plate. The cross-section of the separation concave plate has a first arc structure, the upper cover plate has an arc-shaped structure, and is detachably connected to form a cylindrical structure. The cross-sectional area of the cylindrical structure is greater than the area of the circle where the separation concave plate is located.
By increasing the separation space, the crops are separated more thoroughly and have better separation effect, reducing grain losses and extending the service life of the separation roller.
Smart Images
Figure CN222583054U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field related to agricultural machinery, in particular to a non-circular separation mechanism and a threshing separation device. Background Art
[0002] With the development of agricultural mechanization in China, agricultural machinery development technology has become more mature, and users have higher and higher requirements for the performance, efficiency and reliability of the machines. The existing corn grain harvester threshing concave screen and separation concave screen are fixed, and the separation concave screen is combined with the separation drum cover to form a circle concentric with the separation drum. This will easily cause the concave screen surface to be blocked when there are a lot of crop debris and high moisture content. If it is not cleaned in time, it will affect the threshing effect and efficiency. Insufficient separation space will cause problems such as grain loss, and the drum load is large, which reduces the service life of the drum. Therefore, most of the problems are solved by reducing the speed to extend the threshing and separation time. Utility Model Content
[0003] In order to solve one or more technical problems existing in the prior art, the utility model provides a non-circular separation mechanism and a threshing separation device.
[0004] The utility model solves the above-mentioned technical problem with the following technical solution: a non-circular separation mechanism, comprising a separation concave plate and an upper cover plate, wherein the cross-section of the separation concave plate is a first arc structure, the upper cover plate is an arc structure, the two circumferential ends of the upper cover plate are respectively detachably connected to the two circumferential ends of the separation concave plate to form a cylindrical structure, and the cross-sectional area of the cylindrical structure is greater than the area of the circle where the separation concave plate is located.
[0005] The beneficial effects of the utility model are as follows: the non-circular separation mechanism of the utility model can increase the separation space by enlarging the upper cover plate of the separation drum, so that the crop separation is more thorough, the separation effect is better, and the grain loss is reduced.
[0006] On the basis of the above technical solution, the present invention can also be improved as follows.
[0007] Furthermore, the upper cover plate is in a second circular arc structure or an elliptical arc structure.
[0008] The beneficial effect of adopting the above further solution is that by setting the upper cover plate to a circular arc structure or an elliptical arc structure, problems such as material jamming can be avoided.
[0009] Further, the angle of the second circular arc structure is greater than 180°, and the angle of the first circular arc structure is less than 180°;
[0010] Or, the angle of the second circular arc structure is less than 180°, and the angle of the first circular arc structure is greater than 180°;
[0011] Or, the angle of the second circular arc structure is equal to 180°, and the angle of the first circular arc structure is equal to 180°.
[0012] Furthermore, the angle of the second circular arc structure is 200°~300°, and the angle of the first circular arc structure is 100°~160°.
[0013] The beneficial effect of adopting the above further solution is: by limiting the two arc angles, the structure can be made more stable, the separation can be smoother, the separation efficiency can be higher, and the separation effect can be better.
[0014] Furthermore, the radius of the first arc structure is 300-500 mm, and the radius of the second arc structure is 350-550 mm.
[0015] Furthermore, the distance between the two ends of the upper cover plate in the circumferential direction is equal to the distance between the two ends of the separation concave plate in the circumferential direction.
[0016] The beneficial effect of adopting the above further solution is that the connection and fixation between the upper cover plate and the separation concave plate are facilitated.
[0017] Furthermore, the central axis of the upper cover plate is arranged in parallel with the central axis of the separation concave plate.
[0018] The beneficial effect of adopting the above further solution is that it is convenient to form a cylindrical structure with consistent front and rear dimensions.
[0019] Furthermore, the two ends of the separation concave plate in the circumferential direction respectively extend outward to form a first connecting edge, and the two ends of the upper cover plate in the circumferential direction respectively extend outward to form a second connecting edge, and the two first connecting edges and the two second connecting edges are respectively butted and fixed by connecting bolts.
[0020] The beneficial effect of adopting the above further solution is that by providing the first connecting edge and the second connecting edge, the connection and fixation between the upper cover plate and the separation recessed plate are facilitated.
[0021] A threshing and separation device comprises the above-mentioned non-circular separation mechanism and a separation drum, wherein the separation drum is coaxially sleeved in the cylindrical structure, and an annular separation space is formed between the separation drum and the cylindrical structure.
[0022] The beneficial effects of the utility model are as follows: the threshing and separation device of the utility model can increase the separation space by enlarging the upper cover plate of the separation drum, so that the crop separation is more thorough, the separation effect is better, and the grain loss is reduced.
[0023] Further, the central axis of the separation drum coincides with the central axis of the separation concave plate.
[0024] The beneficial effect of adopting the above further solution is: making the structure of the threshing and separation device more stable and the threshing and separation effect better. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a schematic diagram of the main structure of the threshing and separation device of the utility model;
[0026] Figure 2 It is a side view structural schematic diagram of the threshing and separation device of the utility model;
[0027] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of BB.
[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0029] 1. First connecting edge; 2. Second connecting edge; 3. Separation roller; 4. Separation concave plate; 5. Upper cover plate; 6. Connecting bolts. DETAILED DESCRIPTION
[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0031] like Figure 1~Figure 3 As shown, a non-circular separation mechanism of the present embodiment includes a separation concave plate 4 and an upper cover plate 5, wherein the cross-section of the separation concave plate 4 is a first arc structure, and the upper cover plate 5 is an arc structure, and the two circumferential ends of the upper cover plate 5 are respectively detachably connected to the two circumferential ends of the separation concave plate 4 to form a cylindrical structure, and the cross-sectional area of the cylindrical structure is larger than the area of the circle where the separation concave plate 4 is located.
[0032] Preferably, the upper cover plate 5 of this embodiment is in a second arc structure or an elliptical arc structure. By setting the upper cover plate in an arc structure or an elliptical arc structure, problems such as material jamming can be avoided.
[0033] Specifically, the angle of the second arc structure is greater than 180°, and the angle of the first arc structure is less than 180°; or, the angle of the second arc structure is less than 180°, and the angle of the first arc structure is greater than 180°; or, the angle of the second arc structure is equal to 180°, and the angle of the first arc structure is equal to 180°.
[0034] Optionally, the angle of the second arc structure or the first arc structure is 200° to 300°, and the angle of the first arc structure or the second arc structure is 100° to 160°. By limiting the two arc angles, the structure can be more stable, the separation can be smoother, the separation efficiency can be higher, and the separation effect can be better.
[0035] Specifically, the angle of the second arc structure or the first arc structure is 225°, 210°, 220°, 230°, 240°, 250°, 260°, 270°, 280°, 290°, 235°, and the angle of the first arc structure or the second arc structure is 135°, 105°, 110°, 115°, 120°, 130°, 135°, 140°, 145°, 145°, 150°.
[0036] Optionally, the radius of the first arc structure is 300-500 mm, and the radius of the second arc structure is 350-550 mm.
[0037] Specifically, the radius of the first arc structure is 372.5mm, 310mm, 315mm, 320mm, 325mm, 330mm, 335mm, 340mm, 345mm, 350mm, 360mm, 365mm, 370mm, 375mm, 380mm, 385mm, 390mm, 395mm, 400mm, 405mm, 410mm, 415mm, 420mm, 425mm, 430mm, 435mm, 440mm, 445mm, 450mm, 455mm, 460mm, 465mm, 470mm, 475mm, 480mm, 495mm, and 500mm; the radius of the second arc structure is 406mm, 355mm, 360mm, 365mm, 370mm, 375mm, 380mm, 385mm, 390mm, 395mm, 400mm, 405mm, 410mm, 415mm, 420mm, 425mm, 430mm, 435mm, 440mm, 445mm, 450mm, 455mm, 460mm, 465mm, 470mm, 475mm, 480mm, 485mm, 480mm, 485mm, 490mm, 500mm, 505mm, 510mm, 515mm, 520mm, 525mm, 530mm, 535mm, 540mm, 545mm, 550mm.
[0038] like Figure 2 and Figure 3 As shown, a preferred solution of this embodiment is that the distance between the two ends of the upper cover plate 5 in the circumferential direction is equal to the distance between the two ends of the separation concave plate 4 in the circumferential direction. By selecting the angle, radius, etc. of the upper cover plate 5 and the angle, radius, etc. of the separation concave plate 4, the distance between the two ends of the upper cover plate 5 in the circumferential direction is equal to the distance between the two ends of the separation concave plate 4 in the circumferential direction, which facilitates the connection and fixation between the upper cover plate and the separation concave plate.
[0039] When the distance between the two circumferential ends of the upper cover plate 5 is not equal to the distance between the two circumferential ends of the separation concave plate 4, an auxiliary connecting piece can be used for connection. The auxiliary connecting piece can be a horizontally arranged connecting plate to connect and fix the radially displaced end of the upper cover plate and the end of the separation concave plate.
[0040] like Figure 2 and Figure 3 As shown, the central axis of the upper cover plate 5 of this embodiment is arranged parallel to the central axis of the separation concave plate 4, so as to form a cylindrical structure with consistent front and rear dimensions.
[0041] like Figure 2 and Figure 3 As shown, the two ends of the separation concave plate 4 in the circumferential direction of this embodiment extend outward to form a first connection edge 1, and the two ends of the upper cover plate 5 extend outward to form a second connection edge 2. The two first connection edges 1 and the two second connection edges 2 are respectively butted and connected and fixed by connecting bolts 6. By providing the first connection edge and the second connection edge, the connection and fixation between the upper cover plate and the separation concave plate are facilitated.
[0042] A non-circular separation mechanism of this embodiment can increase the separation space by enlarging the upper cover plate of the separation drum, so that the crop separation is more thorough, the separation effect is better, and the grain loss is reduced.
[0043] This embodiment also provides a threshing and separation device, such as Figure 1~Figure 3 As shown, it includes the above-mentioned non-circular separation mechanism and also includes a separation drum 3, and the separation drum 3 is coaxially sleeved in the cylindrical structure, and an annular separation space is formed between the separation drum 3 and the cylindrical structure.
[0044] A preferred solution of this embodiment is that the central axis of the separation drum 3 coincides with the central axis of the separation concave plate 4. This makes the structure of the threshing and separation device more stable and the threshing and separation effect better.
[0045] The threshing and separation device of this embodiment can increase the separation space by enlarging the upper cover plate of the separation drum, so that the crop separation is more thorough, the separation effect is better, and the grain loss is reduced.
[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0049] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0051] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A non-circular separation mechanism, characterized in that: It includes a separation concave plate and an upper cover plate, the cross-section of the separation concave plate is a first arc structure, the upper cover plate is an arc structure, the two ends of the upper cover plate in the circumferential direction are respectively detachably connected to the two ends of the separation concave plate in the circumferential direction to form a cylindrical structure, and the cross-sectional area of the cylindrical structure is larger than the area of the circle where the separation concave plate is located.
2. A non-circular separation mechanism according to claim 1, characterized in that: The upper cover plate is in a second circular arc structure or an elliptical arc structure.
3. A non-circular separation mechanism according to claim 2, characterized in that: The angle of the second circular arc structure is greater than 180°, and the angle of the first circular arc structure is less than 180°; Or, the angle of the second circular arc structure is less than 180°, and the angle of the first circular arc structure is greater than 180°; Or, the angle of the second circular arc structure is equal to 180°, and the angle of the first circular arc structure is equal to 180°.
4. A non-circular separation mechanism according to claim 3, characterized in that: The angle of the second circular arc structure is 200°~300°, and the angle of the first circular arc structure is 100°~160°.
5. A non-circular separation mechanism according to any one of claims 2 to 4, characterized in that: The radius of the first arc structure is 300-500 mm, and the radius of the second arc structure is 350-550 mm.
6. A non-circular separation mechanism according to claim 1, characterized in that: The distance between the two ends of the upper cover plate in the circumferential direction is equal to the distance between the two ends of the separation concave plate in the circumferential direction.
7. A non-circular separation mechanism according to claim 1, characterized in that: The central axis of the upper cover plate is arranged in parallel with the central axis of the separation concave plate.
8. The non-circular separation mechanism according to claim 1, characterized in that: The two ends of the separation concave plate in the circumferential direction respectively extend outward to form a first connecting edge, and the two ends of the upper cover plate in the circumferential direction respectively extend outward to form a second connecting edge. The two first connecting edges and the two second connecting edges are respectively butted and fixed by connecting bolts.
9. A threshing and separation device, characterized in that: It comprises a non-circular separation mechanism as described in any one of claims 1 to 8, and further comprises a separation roller, wherein the separation roller is coaxially sleeved in the cylindrical structure, and an annular separation space is formed between the separation roller and the cylindrical structure.
10. A threshing and separation device according to claim 9, characterized in that: The central axis of the separation drum coincides with the central axis of the separation concave plate.